WO2005034066A1

WO2005034066A1 - Electronic display filter and electronic display device

Info

Publication number: WO2005034066A1
Application number: PCT/JP2004/013809
Authority: WO
Inventors: Hidekazu Morii; Yukinari Haraguchi; Masashi Nakamaru
Original assignee: Mitsubishi Chemical Corporation
Priority date: 2003-09-30
Filing date: 2004-09-22
Publication date: 2005-04-14
Also published as: TW200521490A

Abstract

There is provided an electronic display filter used in an electronic display device having a light emitting display device. The electronic display filter has transmittance characteristics as follows: (1) At least one minimal value of transmittance ratio exists in a visible light region of wavelength 400 nm to 700 nm. (2) The difference between the smallest transmittance ratio (%) among the minimal values of the transmittance ratio and the largest transmittance ratio (%) in the visible light region is 10 or above. (3) The average value (%) of the light transmittance ratio of wavelength 540 nm to 555 nm is 40% or below. (4) The light transmittance (%) of wavelength 525 nm divided by the average value (%) of the light transmittance ratio of wavelength 540 nm to 555 nm is 1.10 or above. (5) The difference between the maximal value and the minimal value in the transmittance ratio (%) of wavelength 545 nm, the transmittance ratio (%) of wavelength 437 nm, and the transmittance ratio (%) of wavelength 612 nm is 10 or below. It is possible to simultaneously improve the contrast in the bright place under 3-wavelength region light emitting type fluorescent lamp and suppress unnatural coloring of the filter itself. Moreover, it is possible to simultaneously improve the bright/dark contrast of the electronic display device using a filter having an external light suppression layer and suppress coloring of the filter.

Description

Specification

Electronic display filter and electronic display device

Technical field

The present invention relates to an electronic display filter and an electronic display device. For details, remove unnecessary light-emitting components by installing them on the front of electronic displays such as cathode ray tubes (CRT), liquid crystal displays (LCD), plasma displays (PDP), organic EL displays, and FED (field emission display) displays. Filters for electronic displays that have a function, in particular, reduce the green light emission of the three-wavelength band fluorescent lamp without significantly reducing the green light emission intensity of the electronic display. A filter for an electronic display that prevents unnatural coloring due to external light when the contrast is improved, that is, prevents the filter from being colored purple due to the enhancement of the blue and red components of fluorescent lamps.

'On the device.

Background art

[0002] In recent years, plasma display panels have been used as display panels for various electronic devices such as large wall-mounted televisions, and their demand has increased, and the number thereof has been increasing.

[0003] In an electronic display using a phosphor such as a plasma display, red, green, and blue light-emitting phosphors are arranged on the surface of the display, and the color of these phosphors is white and their reflectance is high. It is. Therefore, when viewing an image on an electronic display in a light place where there is lighting, such as a fluorescent lamp, a light bulb, or sunlight, around the electronic display, external light is reflected on the surface of the electronic display. Phenomenon occurs.

[0004] For example, when displaying black on an electronic display, a state in which nothing is displayed on the display corresponds to black display. In particular, in an electronic display using a phosphor such as a plasma display, the color of the phosphor itself is white. As a result, the brightness ratio at the time of display and the brightness at the time of black display are small.

[0005] Therefore, in order to remove the reflection component of the external light to make the white black more black, a filter for lowering the transmittance is provided on the front surface of the electronic display. [0006] In contrast, the contrast enhancement function conventionally provided to a filter installed on the front of an electronic display has a function of absorbing external light by reducing the transmittance of the entire visible light region with the filter. Naturally, the light emission of the electronic display was enhanced because it was cut, and the effect of improving the contrast was too strong. In order to solve such a problem, there has been proposed a filter for an electronic display having an external light suppressing layer that absorbs light in a specific wavelength band and thereby suppresses a decrease in contrast of light and dark due to external light. Patent Document 1: JP 2003-167118 A

[0007] However, the ability of this filter to suppress external light is mainly intended for ordinary fluorescent lamp F6 environments installed in offices and factories, and is often installed in homes and stores. It was found that the effect was not necessarily sufficient in a three-wavelength-emission fluorescent lamp environment. In other words, in order to obtain an effective contrast in an environment where external light, especially a three-wavelength fluorescent lamp, is present, it is necessary to pass a large amount of light from the electronic display and use the external light component, particularly a three-wavelength fluorescent lamp. There is a need for a filter that selectively cuts only the luminescent component.

[0008] Here, the so-called light-dark contrast is a ratio of a light emission luminance when displaying an image on a display to a black luminance when displaying black. The light emission luminance when displaying an image on a display is high, and the light-dark contrast is improved if the luminance when displaying black is low. In order to brighten the display image on the display, the light-emitting component of the display may be passed as it is, that is, the filter may be set to have a higher transmittance for the display light-emitting component.

[0009] Next, in order to make black appear blacker when displaying black in a bright place where external light exists, that is, in order to lower the luminance of black, the light emission component of the external light must be What is necessary is just to set the transmittance of the filter to be lower. This is because the black color of the display is represented by a portion where no current flows, that is, when the black color of the display is displayed, most of its brightness is due to reflected light of external light.

[0010] On the other hand, humans perceive brightness differently depending on the wavelength of light. In other words, light / darkness is more perceived at wavelengths with higher luminosity, and not so much at wavelengths with lower luminosity. Here, luminosity refers to “a stimulus that is effective in generating a sense of brightness among radiation entering the eye. It is defined as "representing the ratio of" (Physics Dictionary Baifukan). The peak of this visibility is at 555 nm. In other words, by controlling the external light around 555 nm well, the contrast between light and dark can be controlled.

[0011] Among the various types of external light, the green light-emitting component of the three-wavelength light-emitting fluorescent lamp F10 FIS Z8719—1996), which is very widely used in Japan, has a peak at 545 nm and a peak at 530—56 Onm. Most of them exist. On the other hand, the green light emission component of the plasma display has a peak at 525 ηm, and most of the light exists at 480 to 580 nm 〖. Comparing the green light emission component of a three-wavelength band fluorescent lamp with the green light emission component of a plasma display, the 540-555 nm region has a large external light component and a small plasma display light emission component. It can be seen that the region near 525 nm is a region where the plasma display has a large amount of light-emitting components and a small amount of external light components. In other words, if the light in the region of 540-555 nm is cut by the filter and the transmittance of the filter is designed so that the light around 525 nm is more transmitted, it is possible to obtain a filter with excellent light / dark contrast.

[0012] A method of cutting light in the 540-555 nm region with a filter is achieved by, for example, laminating a film or the like containing a dye or pigment that absorbs light in the 540-555 nm region to the filter. it can. That is, if a filter capable of locally lowering the transmittance of the filter in the 540-555 nm region can be obtained, the brightness control of the electronic display can be improved.

[0013] Light near 540-555 nm is a green component of the three primary colors of red, green and blue light. If the filter cuts off light of 540-555nm in the external light component relatively more than light of other wavelengths, the blue and red light of the external light component will be transmitted. Therefore, green light is not transmitted. As a result, under a three-wavelength band fluorescent lamp, the color of the filter itself was a mixed color of blue and red, that is, a purple color.

[0014] In other words, the color of the filter that is visible to human eyes is the color of light that is transmitted through the filter, reflected from the display surface, and passed through the filter again, such as fluorescent light. Normally, white light such as fluorescent light passes through a filter that cuts more green light twice, changing the balance of blue 'green' and red and increasing the ratio of blue and red. It becomes light and is observed by the human eye, so the color of the filter appears purple. Thus, in particular, It was difficult to balance the two functions of improving the contrast in a bright place illuminated by a three-wavelength fluorescent lamp and suppressing the coloration of the filter itself.

[0015] Separately, the optical filter is formed by thinly applying a functional material to a substrate (transparent substrate) made of a colorless and transparent material such as glass or PET, or attaching an optical functional film.

[0016] Such an optical function film is generally attached to a transparent substrate using an adhesive. However, the inside of the display device tends to be relatively high in temperature, and since the display device is used for a long period of time, the optical function film may peel off from the edge portion due to aging.

[0017] Usually, the surface of a transparent substrate is processed to be smooth in order to improve the visual characteristics, and the adhesive strength is obtained in the first place. In addition, in recent years, the screen size of the display device has been increasing, the dimensional change of the transparent substrate caused by thermal expansion due to the heat generated by the display has increased, and the fluctuation of the tension applied to the film after pasting has also increased. As described above, the factors that make it easy for the film attached to the transparent substrate to peel off are increasing, and this trend is expected to continue in the future.

[0018] Therefore, there is a need for improvements in techniques and techniques for attaching a film so as to obtain sufficient adhesive strength of the film that can withstand aging of the adhesive and the film and dimensional fluctuation of the transparent substrate! / Puru. In the past, this was addressed by using a limited class of adhesives that had good adhesion to smooth surfaces, but these adhesives were superior over time, productivity, price and V, and other conditions. That was not always the case.

[0019] An opaque (mainly black) frame is often printed in a frame shape on the outer peripheral portion of the transparent substrate due to a problem in appearance. Conventionally, such printing (frame printing) has been regarded as important only in its appearance when viewed from the direction of the opposing surface of the transparent substrate (observation direction in the display device). (In contact with the transparent substrate! /, Na! / ヽ printing surface), no attention was paid to the characteristics and utility.

Disclosure of the invention

Problems to be solved by the invention

The present invention has been made in view of the above circumstances, and has as its object to provide a three-wavelength band fluorescent lamp. To improve the contrast in bright places illuminated, and to suppress unnatural coloring of the filter itself.

An object of the present invention is to provide a filter for an electronic display having both functions.

[0021] Another object of the present invention is to provide an electronic display capable of attaching an optical functional film by using a portion where the surface roughness of an exposed surface in frame printing is controlled, while improving contrast in a light place. To provide a transparent substrate for an application filter.

Means for solving the problem

The inventors of the present invention have studied the brightness of the electronic display in black display when viewing the electronic display in an environment illuminated by the three-wavelength band fluorescent lamp, and as a result, as described above, — We found that the lower the filter transmittance in the 555 nm region, the lower the brightness of the electronic display when displaying black. That is, the average value of the light transmittance of the filter at 540-555 nm Ta (%) is usually 40% or less, preferably 35% or less, more preferably 33% or less, still more preferably 30% or less, and most preferably 20% or less. It has been found that the lower the value is, the lower the brightness of black in black display of the electronic display when viewing the electronic display in an environment illuminated by a three-band fluorescent lamp. Was.

[0023] Next, regarding the light-dark contrast, as described above, the light emission component of the plasma display is small! / By lowering the filter transmittance in the region of 540 to 555 nm, the luminance of black is reduced and the plasma display is reduced. If an optical design is made so as to increase the light transmittance when the light emitting component of the light is about 525 nm, the light emission luminance at the time of displaying an image on the electronic display will not be hindered. As a result of the study by the present inventors, when the value obtained by dividing the light transmittance Tb (%) at 525 nm by the average value Ta (%) of the light transmittance at 540 to 555 nm is usually 1.10 or more, the emission in the three wavelength region is considered. It has been found that good light-dark contrast can be obtained in an environment illuminated by a fluorescent lamp. That is, the value obtained by dividing the light transmittance Tb (%) at 525 nm by the average value Ta (%) of the light transmittances at 540 to 555 nm is preferably 1.20 or more, more preferably 1.30 or more, still more preferably 1.40 or more, It has been found that the better the contrast is, preferably, 1.50 or more, the better the contrast is obtained.

[0024] Further, as a result of examining the spectral characteristics of the light-emitting components of the three-wavelength light-emitting fluorescent lamp, the present inventors have found that, among the light-emitting components of the three-wavelength light-emitting fluorescent lamp, a main red light-emitting component and a green light-emitting component. Main The light emitting component and the blue main light emitting component peak at 612 nm, 545 nm, and 437 nm, respectively, and are very narrow and concentrated in a region. The ratio of the luminance near these three wavelengths (612 ± 20 nm, 545 ± 20 nm, 437 ± 20 nm) to the luminance at all wavelengths (380-780 nm) is 76%, which accounts for the majority of the luminance at all wavelengths. I have. This fact means that, in a three-wavelength band fluorescent lamp, the influence of light near these three wavelengths is considerably large.

[0025] As described above, the coloring of the filter installed on the front of the electronic display is based on the fact that the external light passes through the filter once, is reflected on the surface of the electronic display, and is again the light that has exited through the filter. Due to properties. That is, if the emission balance of red, green, and blue of light that passes through the filter twice is significantly disturbed, the filter looks unnaturally colored. Taking these factors into account, we found that by appropriately controlling the light transmittance of the filter at 612 nm, 545 nm, and 437 nm, the coloration of the filter could be suppressed.

That is, as a result of examining the spectral characteristics of the light-emitting components of the three-band fluorescent lamp, in order to prevent the color of the filter itself from being unnaturally colored, for example, 437 nm (Td), 545 nm (Tc ), The difference between the maximum value and the minimum value of the light transmittance (%) of the three-point filter at 612 nm (Te) should normally be 10 or less. The smaller the difference between the maximum value and the minimum value is, preferably, 7 or less, more preferably 5 or less, and even more preferably 3 or less, the more preferable the color tone of the filter, the color tone of the filter is reduced .-- Eutral blue and neutral gray I found that I can do it.

The present invention has been completed based on the above findings, and the above object of the present invention is achieved by any one of the following 1) to 12).

1) A first gist of the first invention is a filter for an electronic display used for an electronic display device having a light emitting display device, wherein the filter has the following transmittance characteristics. Present in display filters.

(1) At least one minimum value of the transmittance exists in the visible light region of wavelengths from 400 nm to 700 nm.

(2) The difference between the minimum transmittance (%) among the minimum values of the transmittance and the maximum transmittance (%) in the visible light region is 10 or more.

(3) The average value (%) of light transmittance at wavelengths of 540 nm to 555 nm is 40% or less. (4) The value obtained by dividing the light transmittance (%) at a wavelength of 525 nm by the average value (%) of the light transmittance at a wavelength of 540 nm to 555 nm is 1.10 or more.

(5) The difference between the maximum value and the minimum value in the transmittance (%) at a wavelength of 545 nm, the transmittance (%) at a wavelength of 437 nm, and the transmittance (%) at a wavelength of 612 nm is 10 or less.

[0029] 2) A second aspect resides in an electronic display device characterized in that the electronic display filter of the first invention is provided.

3) A first gist of the second invention is a filter for an electronic display used for an electronic display device having a light emitting display device,

The light transmittance (%) at the wavelength of the green emission peak of the three-band fluorescent tube is 5 or more lower than the light transmittance (%) at the wavelength of the green emission peak of the light emitting display device, or the light emitting display device is white. The light transmittance (%) at the wavelength of the green emission peak of the 3-wavelength emission fluorescent tube is 1 or more lower than the luminous transmittance Y1 (%) when using the emission spectrum! ,

(A) An external light suppression layer that suppresses transmission of a specific wavelength component of incident light on the light-emitting display device side surface of an electronic display filter and an electromagnetic wave shield layer that suppresses electromagnetic wave radiation from the electronic display device are formed by an electromagnetic wave shield. The electronic display filter is characterized in that the layer is arranged so that the layer is closer to the light emitting display device than the external light suppressing layer.

4) A second gist of the second invention resides in an electronic display device including the electronic display filter according to the second invention.

[0032] 5) A first aspect of the third invention is a filter for an electronic display used in an electronic display device having a light emitting display device,

(B) An external light introduction layer with a luminous transmittance of 90% or more is provided on the outermost surface of the electronic display filter. An electronic display filter characterized by being arranged.

[0033] 6) A second aspect of the third invention resides in an electronic display device including the electronic display filter according to the third invention described above.

7) A first gist of the fourth invention is a filter for an electronic display used for an electronic display device having a light emitting display device,

(C) The electronic display filter is characterized in that the electronic display filter is composed of a transparent substrate having a haze value of 1.5% or less.

8) A second aspect of the fourth invention resides in an electronic display device including the electronic display filter according to the fourth invention.

9) A first gist of the fifth invention is a filter for an electronic display used in an electronic display device having a light emitting display device,

(D) An electronic display filter characterized in that an electromagnetic wave shielding layer having a visible light transmittance of 60 to 80% is arranged on the surface of the electronic display filter on the light emitting display device side.

[0037] A second aspect of the fifth invention resides in an electronic display device including the electronic display filter according to the fifth invention.

11) A first gist of the sixth invention is a transparent substrate as a support for an electronic display filter used in an electronic display device having a light emitting display device, It has a frame-shaped opaque area on the outer periphery of the transparent substrate surface,

The opaque region has an arithmetic mean height (Ra) of 0.05 to 100 μm on the transparent substrate of the electronic display filter.

12) A second gist of the sixth invention is a transparent substrate as a support for an electronic display filter used in an electronic display device having a light emitting display device, which is provided on an outer peripheral portion of a surface of the transparent substrate. It has a frame-shaped opaque area, and the surface roughness of the opaque area is 0.05 to 100 μm in arithmetic mean height (Ra). An electronic display filter comprising at least one optically functional film adhered thereto.

The invention's effect

According to the present invention, it is possible to achieve both the two functions of improving the contrast in a light place under irradiation with a fluorescent light of a three-wavelength region and suppressing unnatural coloring of the filter itself. In addition, it is possible to improve both the bright B sound contrast of an electronic display device using a filter having an external light suppression layer and to suppress the coloring of the filter. Separately, by applying an optical function film using a portion where the surface roughness of the exposed surface in the frame printing is controlled together with the improvement of the contrast, a sufficiently strong adhesive strength can be obtained with a simple configuration. Brief Description of Drawings

FIG. 1 shows a white light emission spectrum of the plasma display panel of the first invention, a light emission spectrum of a three-wavelength band fluorescent lamp F10, and a transmission spectrum of a filter for an electronic display according to the first embodiment. FIG.

[FIG. 2] FIG. 2 conceptually illustrates light emitted from the electronic display and reflected light of external light on the surface of the electronic display in an electronic display device in which an electronic display filter is arranged in front of the electronic display. FIG.

FIG. 3 is a diagram showing a configuration example of an electronic display filter according to a second invention and an electronic display device using the same.

FIG. 4 is a diagram showing an emission spectrum of the plasma display panel of the second invention, an emission spectrum of a three-wavelength-band fluorescent lamp F10, and a transmission spectrum of a filter for an electronic display of the present invention. FIG. 5 is a diagram showing an emission spectrum of a plasma display and an emission spectrum of a three-wavelength band fluorescent lamp F10 after passing through an electronic display filter having the characteristics shown in FIG. 4 of the second invention. is there.

FIG. 6 is a diagram showing a configuration example of an electronic display device in which a filter for an electronic display of the second invention is directly bonded to a display panel via an adhesive layer.

FIG. 7 is a diagram showing a configuration example of an electronic display filter of the third, fourth, fifth, and sixth inventions and an electronic display device using the same.

FIG. 8 is a view showing an emission spectrum of the plasma display panel according to the third, fourth and fifth inventions, an emission spectrum of the three-band emission fluorescent lamp F10, and a transmission spectrum of a filter for an electronic display.

[FIG. 9] FIG. 9 is an emission spectrum of a plasma display and an emission spectrum of a three-band fluorescent lamp F10 after transmission through a filter for an electronic display having the characteristics shown in FIG. 8 of the third, fourth and fifth inventions. FIG.

FIG. 10 is an explanatory diagram of a positional relationship between frame printing on a transparent substrate of the sixth invention and a film to be pasted.

[FIG. 11] FIG. 11 is a schematic diagram illustrating the state of adhesion between the film and the transparent substrate in FIG. 10 of the sixth invention.

FIG. 12 is a diagram showing a transmission spectrum of an external light suppressing filter formed in an example of the sixth invention.

FIG. 13 is a view for explaining a mask pattern for forming a conductive shield mesh formed in the fifth and sixth embodiments of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the present invention will be described in detail. Prior to the description of the present invention, coloring of a filter provided on the entire surface of the electronic display will be described with reference to FIG. FIG. 2 is a diagram conceptually illustrating light emission of an electronic display and reflected light of external light on the surface of an electronic display in an electronic display device in which an electronic display filter is arranged in front of an electronic display.

As shown in FIG. 2, the electronic display device has a structure in front of the plasma display panel 12. The filter 100 is installed on the surface. Light emitted from the electronic display passes through the filter 100. On the other hand, when viewing an image on the electronic display, light from an external light source 20 such as a fluorescent lamp or a light bulb, and external light 201 such as sunlight, which are present around the electronic display, pass through the filter 100, The light is reflected off the display surface and passes through the filter 100 again. The color of the filter that is visible to the human eye is due to the characteristics of light that passes through the filter once, reflects off the surface of the electronic display, and passes through the filter again.

Next, the filter for an electronic display of the present invention will be described. An electronic display filter is a filter for an electronic display device using a light emitting display device. Here, the light-emitting display device is a minimum configuration that realizes a light-emitting display function such as a plasma display panel or a combination of a liquid crystal display panel and a backlight, in other words, a light-emitting device for which a display filter is used. Means display body. Further, the light emitting display device according to the present invention is a color light emitting display device. In addition, the electronic display device means a finished product in which a light emitting display device and a display filter are incorporated in a housing and are distributed as a television or a display device on site!

The electronic display filter of the present invention is disposed on the front surface of the light emitting display device, that is, in the optical path until the light emitted from the light emitting display device exits from the electronic display device using the light emitting display device. You.

The filter for an electronic display of the present invention is a filter having a function of suppressing external light. The external light suppressing function is a function of one of the layers constituting the electronic display filter. In the present invention, the layers constituting the filter for an electronic display need not necessarily be bonded to adjacent layers. For example, a form that is arranged apart from an adjacent layer or a form that does not have a force bonding in contact with an adjacent layer may be used.

Hereinafter, an electronic display filter and an electronic display device according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a diagram showing a white light emission spectrum of a plasma display panel of the first invention, a light emission spectrum of a three-wavelength band fluorescent lamp F10, and a transmission spectrum of an electronic display filter according to Example 1; , The electronic display of the second invention FIG. 4 shows an emission spectrum of a plasma display panel according to the second invention, an emission spectrum of a three-wavelength fluorescent lamp F10, and an electronic filter of the present invention. FIG. 5 shows the transmission spectrum of a display filter; FIG. 5 shows the emission spectrum of a plasma display after passing through an electronic display filter having the characteristics shown in FIG. FIG. 6 is a diagram showing an emission spectrum; FIG. 6 is a diagram showing a configuration of an electronic display device in which the filter for an electronic display of the second invention is directly adhered to a display panel via an adhesive layer; FIG. 5 and 6 are diagrams showing the configuration of the electronic display filter and the electronic display device using the same according to the invention; FIG. FIG. 9 shows the emission spectrum of the plasma display panel of the invention, the emission spectrum of the three-band fluorescent lamp F10, and the transmission spectrum of the filter for an electronic display; FIG. 9 shows the third, fourth, and fifth inventions in FIG. FIG. 10 shows an emission spectrum of a plasma display and an emission spectrum of a three-band fluorescent lamp F10 after transmission through an electronic display filter having the characteristics shown in FIG. 10; FIG. 11 is an explanatory view of a positional relationship with a film to be pasted; FIG. 11 is a schematic view illustrating an adhesion state between a film and a transparent substrate in FIG. 10 of the sixth invention; FIG. FIG. 13 is a diagram showing a transmission spectrum of the external light suppressing filter formed in Step 5; and FIG. 13 is an illustration of a mask pattern for forming a conductive shield mesh formed in the fifth and sixth embodiments. It is.

First, the electronic display filter of the first invention will be described.

Electronic display filters have (1) at least one transmittance minimum in the visible light range of wavelengths from 400 nm to 700 nm; and (2) the minimum transmittance (%) among the transmittance minimums. The difference from the maximum transmittance (%) in the visible light region is 10 or more; (3) The average value (%) of the light transmittance at a wavelength of 540 nm to 555 nm is 40% or less; (4) The wavelength of 525 nm The value obtained by dividing the light transmittance (%) by the average value (%) of the light transmittance at wavelengths of 540 nm to 555 nm is 1.10 or more; and (5) The transmittance (%) of the wavelength 545 nm and the wavelength of 437 nm It has transmittance characteristics in which the difference between the maximum value and the minimum value in the transmittance (%) and the transmittance (%) at a wavelength of 612 nm is 10 or less.

[0049] In the filter for an electronic display according to the first invention, the transmittance in a predetermined wavelength range. In addition to this layer, a layer containing an ultraviolet absorber, a near-infrared ray cut layer, an electromagnetic wave shielding layer, an anti-reflection layer, an anti-glare (non-glare) layer, etc. may be appropriately combined. Can be provided. Further, the filter according to the present invention can be used for an electronic display device.

FIG. 1 shows a white light emission spectrum of the plasma display panel of the first invention, a light emission spectrum of a three-wavelength band fluorescent lamp F10 FIS Z8719-1996), and a light emission spectrum of 380-780 nm according to Example 1 described later. The transmission spectrum of the filter whose transmittance at a specific wavelength is controlled is shown. In the figure, the horizontal axis shows the wavelength, and the vertical axis shows the transmittance (%) of each wavelength.

The electronic display filter according to the first invention has at least one transmittance minimum in the visible light region of 400 to 700 nm. Further, as the filter for an electronic display according to the first invention, a filter having a minimum value of transmittance in a wavelength region of 480 to 520 nm and a minimum value of transmittance in a wavelength region of Z or 530 to 610 nm is preferable. .

[0052] It should be noted that having a minimum value of the transmittance in a predetermined wavelength range means that a light beam in this wavelength range is focused. Here, the “minimum value” has the same meaning as that defined in, for example, a graph of a quadratic function, that is, an inflection point at which a decreasing force increases on the graph, and a minimum value. Different from the value.

[0053] In the electronic display filter according to the first invention, the difference between the minimum transmittance (%) among the minimum values of the transmittance and the maximum transmittance (%) in the visible light region is 10 or more.

The filter for an electronic display according to the first invention has an average value (%) of the light transmittance at a wavelength of 540 to 555 nm with respect to the light transmittance at all wavelengths (380 to 780 nm) of 40% or less, preferably 35% or less. Or less, more preferably 33% or less, even more preferably 30% or less, and most preferably 20% or less.

[0055] The electronic display filter according to the first invention has a value obtained by dividing the light transmittance (%) at a wavelength of 525 nm by the average value (%) of the light transmittance at a wavelength of 540 to 555 nm, and is preferably 1.10 or more, preferably It is at least 1.20, more preferably at least 1.30, even more preferably at least 1.40, most preferably at least 1.50.

The filter for an electronic display according to the first invention has a difference between the maximum value and the minimum value in the transmittance (%) at a wavelength of 545 nm, the transmittance (%) at a wavelength of 434 nm, and the transmittance (%) at a wavelength of 612 nm. Is 10 Or less, preferably 7 or less, more preferably 5 or less, and still more preferably 3 or less.

When adjusting the transmittance of the filter at 437 nm, in order to satisfy the red, green, and blue light emission balance (the difference in transmittance (%) is preferably within ± 10), it is necessary to use 437 nm. Of course must be low. However, as the transmittance at 437 nm decreases, the blue color of the plasma display panel (PDP) when displaying blue becomes green. In order for blue to be green, the blue component of the PDP blue phosphor emission, which is mostly in the wavelength region of 400-520 nm, is cut by lowering the transmittance of the filter at 437 nm, This is due to an increase in green component. In order to solve the problem of blue to green color, a dye that absorbs at 480-520 nm is added to the filter components to reduce the filter's transmittance at 480-520 nm to reduce the wavelength range of 480-520 nm. It is preferable that the transmittance has a minimum value. By reducing the transmittance of the filter from 480 to 520 nm, the green component of the blue light-emitting component can be cut, and the blue chromaticity of the panel when displaying blue can be maintained.

[0058] Further, usually, PDP has a problem that a vivid red color cannot be obtained due to a mixture of red and orange due to neon light emission. In particular, in the case of a PDP filter, it is preferable that the filter has a minimum value of transmittance in a wavelength region of 530 to 610 nm. By having a minimum value of the transmittance in the wavelength range of 530-6 lOnm, a function of absorbing and removing neon orange light can be provided.

The fact that the transmittance has a minimum value in the wavelength range of 530 to 610 nm means that light rays in this wavelength range are cut. The wavelength range from 530 to 610 nm is the orange light emission part (neon light emission) between green light emission and red light emission. By cutting this part, a clear red display can be obtained, and furthermore, the color temperature can be obtained. Can be increased, so that a more favorable color tone image can be obtained. It is not preferable that the minimum transmittance is shorter than 530 nm because the effect of cutting neon emission is low and the effect of increasing color temperature is low. Further, it is not preferable that the minimum transmittance is on the long wavelength side than 610 nm, because the red light emission of the display is inhibited (red light is absorbed).

The transmission spectrum having a minimum value in the wavelength range of 530 to 610 nm has a sharp (valley) valley shape, which improves the color purity of red emission and ensures the brightness of the visual field. Preferred for.

In the example of FIG. 1, as described above, a minimum value of the transmittance is provided in the wavelength range of 530 to 610 nm in order to cut off neon light emission.

The electronic display filter of the first invention has a wavelength (437 nm) where a blue emission peak exists, a wavelength where a green emission peak exists (545 nm), and a red emission peak of a three-wavelength band fluorescent lamp. The transmittance at these wavelengths is regulated by containing a compound having a maximum absorption near any one of the wavelengths (612 nm).

[0063] The compound used is not particularly limited, but in adjusting the amount of light absorption at wavelengths of 437 nm, 545 nm and 612 nm, a compound having a maximum absorption near these wavelengths can be used. .

For example, as the compound having the maximum absorption in any of the wavelength ranges of 437 nm, 545 nm, and 612 nm, a squarylium-based compound represented by the following formula (I)-(IV) can be mentioned. Specifically, the compound having the maximum absorption near 545 nm includes the compound of the following formula (I).

[0065]

[In the formula (I), R ¹ represents an alkyl group which may have a substituent, an alkoxy group which may have a substituent or a hydroxyl group, and the substituent A is a hydroxyl group or W—X—R ² (W represents an imino group or an alkylimino group, X represents a carboxyl group, a thiocarbol group or a sulfonyl group, and R ² represents a substituent. Alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted amino group or a substituted or unsubstituted amino group Represents a heterocyclic group, m = 0 or an integer of 1 to 4, and m ′ = 0 or 1.). ]

[0067] Examples of the alkyl group for R ¹ in the formula (I) include a methyl group, an ethyl group, and a propyl group. Butyl, pentyl, hexyl, heptyl, octyl, decyl, pentadecyl, dodecyl, tridecyl, pentadecyl, etc. Examples of the alkoxy group for R ¹ include a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentyloxy group, a hexyloxy group, a heptyloxy group, an octyloxy group, a decyloxy group, a pendecyloxy group, a dodecyloxy group, and a tridecyloxy group. And linear or branched groups having 120 carbon atoms, such as a pentadecyloxy group and a pentadecyloxy group.

[0068] Examples of the substituent of the alkyl group and the alkoxy group include a carbon number such as a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, and a decyl group. 1-10 Alkoxy, methoxy, ethoxy, propoxy, butoxy, pentyloxy, hexyloxy, heptyloxy, octyloxy, decyloxy, etc.C11-C10 alkoxy, cyclopropyl, cyclobutyl, etc. A cycloalkyl group having 110 carbon atoms, such as a cycloalkyl group, a cyclopentyl group, a cyclohexyl group, or a cycloheptyl group, an aryl group such as a fluor group, a hydroxyl group, a halogen atom such as a fluorine atom, a chlorine atom, or a bromine atom. , Acetylamino, methanesulfo-amino, trifluoroacetylamino, trifluoromethanesulfon -Aromatic carbamino group such as lumino group, butanoylamino group, hexanoylamino group, nonanoylamino group, tridecanoylamino group, etc., having 11 to 15 carbon atoms, benzoylamino group and tolylamino group Group sulfonylamino groups and the like.

In the above formula (I), R ¹ may be, as described above, (1) linear or branched having (1) an alkoxy group, a hydroxyl group, or a halogen atom as a substituent. An alkyl group is preferably a linear or branched alkyl group having 18 carbon atoms, or a linear or branched alkoxy group having 18 carbon atoms is particularly preferable.

The alkyl group of the alkylimino group represented by W in W—X—R ² in the formula (I) is preferably a straight-chain or branched-chain group having 118 carbon atoms. As the magus W, an imino group, which is preferably an imino group or an alkylimino group, is particularly preferred. When X is a sulfol group, R ² is not a hydrogen atom.

[0071] Further, the alkyl group of R ² in W- X- R ^2, for example, alkyl in the R ¹ Alkyl groups such as alkyl group, vinyl group, etc., aryl groups such as furyl group, naphthyl group, amino group, 3-pyridyl group, 2-furyl group, 2-tetrahydrofuryl group, 2-cell mentioned and heterocyclic groups such as groups, these alkyl groups, alkenyl groups, Ari group, amino group and heterocyclic group include an alkyl group in the R ^1, the same as mentioned as the substituent of alkoxy group It may have an alkyl group having 110 carbon atoms, an alkoxy group having 110 carbon atoms, a cycloalkyl group having 110 carbon atoms, a halogen atom or an aryl group as a substituent.

Of the above R ^2, the same alkyl group as the preferable alkyl group of the above R ¹ , and may be substituted with an alkyl group having 118 carbon atoms, may be a fuel group or an alkyl group having 18 carbon atoms. Even if it is substituted, a butyl group is particularly preferred. Preferred examples are shown below.

608CT0 / l700Zdf / X3d 81990 SOOZ OAV O

() 61— Four]

[0076]

(n)

[0077] Examples of the compound having the maximum absorption near 545 nm include a compound represented by the following formula (Π). [0078] [Formula 6]

[In the formula (Π), R ¹ represents an alkyl group which may have a substituent or an alkoxy group which may have a substituent, and the substituent A is a hydroxyl group or W—X — R ² (W represents an imino group, X represents a carbonyl group or a sulfol group, and R ² represents a hydrogen atom, an alkyl group which may have a substituent, or a substituent. An aryl group which may be substituted, an aryl group which may have a substituent or a heterocyclic group which may have a substituent, m represents 0 or 1, and R ⁶ , R ⁷ Represents an alkyl group which may have a substituent or an aryl group which may have a substituent, and Z represents an oxygen atom.). ]

[0080] Examples of the alkyl group of R ¹ in the formula (Π) include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a decyl group, a decyl group, dodecyl group, tridecyl group, a linear also properly branched group having a carbon number of 1 one 20, such as a pentadecyl group, the alkoxy group of R ^1, for example, a methoxy group, an ethoxy group, flop port epoxy group, butoxy Straight-chain or branched-chain groups having 120 carbon atoms, such as group, pentyloxy group, hexyloxy group, heptyloxy group, octyloxy group, decyloxy group, pendecyloxy group, dodecyloxy group, tridecyloxy group and pentadecyloxy group. Is mentioned.

[0081] Examples of the substituent of the alkyl group and the alkoxy group include those having 1 carbon atom such as a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, and a decyl group. (I) C10-C10 alkoxy, cyclopropyl, such as alkyl, methoxy, ethoxy, propoxy, butoxy, pentyloxy, hexyloxy, heptyloxy, octyloxy, and decyloxy groups; C11-C10 cycloalkyl group such as cyclobutyl group, cyclopentyl group, cyclohexyl group, cycloheptyl group, aryl group such as phenyl group, hydroxyl group, or fluorine atom, salt And halogen atoms such as elemental atoms and bromine atoms.

In the above formula (Π), R ¹ may have an alkoxy group, a hydroxyl group or a halogen atom as a substituent among the above, and is preferably a linear or branched alkyl group. A linear or branched alkyl group having 18 carbon atoms is particularly preferred.

The alkyl group of the alkylimino group represented by W in W—X—R ² in the formula (Π) is preferably a straight-chain or branched-chain group having 118 carbon atoms. As the magus W, an imino group, which is preferably an imino group or an alkylimino group, is particularly preferred. When X is a sulfol group, R is not a hydrogen atom.

2

[0084] W- X- in R ² of the alkyl group R ^2, for example, an alkyl group of the alkyl group the same way in the R ^1, alkenyl groups such as vinyl group, Hue - group, such as naphthyl And aryl groups such as aryl groups, 3-pyridyl groups, 2-furyl groups, 2-tetrahydrofuryl groups, and 2-phenyl groups. These alkyl groups, alkyl groups, aryl groups and The heterocyclic group is, for example, an alkyl group for R ^1, an alkyl group having 11 to 10 carbon atoms similar to the substituent of the alkoxy group, an alkoxy group having 11 to 10 carbon atoms, a cycloalkyl group having 11 to 10 carbon atoms, It may have a halogen atom, an aryl group or the like as a substituent.

Of the above R ² , a phenyl group is particularly preferable, even if it is substituted with the same alkyl group or an alkyl group having 18 to 18 carbon atoms as the preferable group of the above R ¹ .

[0086] have a substituent R ⁶ and R ^7! /, Even I! /, Having an alkyl group or a substituted group! /, As the good VヽAriru group, in the R ² The same groups as the aryl groups may be mentioned, which may have the above-mentioned substituents or may have the alkyl group or the substituents.

[0087] wherein one of R ⁶ and R ^7, the alkyl group or Ariru group same as the preferred group of R ² is particularly preferred U,. Preferred examples are shown below.

[8800]

608CT0 / l700Zdf / X3d z 990 SOOZ OAV

[8 ^] [6800] 8CT0 / l700Zdf / X3d 93 990 OAV [0090]

(n) H ₉ C ₄ (

[0091] As a compound having a maximum absorption near 545 nm, a commercially available dye, "TY-300" manufactured by Asahi Denka Kogyo Co., Ltd. may be mentioned. [0092] Examples of the compound having a maximum absorption near 612 nm include a compound represented by the following formula (ΠΙ).

[0093] [Formula 10]

[In the formula (III), R ¹ represents an alkyl group which may have a substituent or an alkoxy group which may have a substituent, and the substituent B is a group represented by W—CO—R ² (W represents an imino group or an alkylimino group, R ² represents an alkenyl group which may have a substituent or an alkyl group which may have a substituent, and m and m ′ Each independently represents 0 or 1.). ]

The alkyl group of R ¹ in the [0095] Formula (III), for example, a methyl group, Echiru group, propyl group, butyl group, a pentyl group, a hexyl group, a heptyl group, Okuchiru group, decyl group, © down decyl , A dodecyl group, a tridecyl group, a pentadecyl group and the like, and a straight or branched chain group having 120 carbon atoms. Examples of the alkoxy group for R ¹ include, for example, a methoxy group, an ethoxy group, a propoxy group, and a butoxy group. Group, pentyloxy group, hexyloxy group, heptyloxy group, octyloxy group, decyloxy group, pendecyloxy group, dodecyloxy group, tridecyloxy group, pentadecyloxy group, etc. Groups.

[0096] Examples of the substituent of the alkyl group and the alkoxy group include those having 1 carbon atom such as a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group and a decyl group. (I) C10-C10 alkoxy, cyclopropyl, such as alkyl, methoxy, ethoxy, propoxy, butoxy, pentyloxy, hexyloxy, heptyloxy, octyloxy, and decyloxy groups; C11-C10 cycloalkyl groups such as cyclobutyl group, cyclopentyl group, cyclohexyl group and cycloheptyl group, aryl groups such as phenyl group, hydroxyl group, fluorine atom and chlorine atom And a halogen atom such as a bromine atom.

[0097] In the above formula (ΠΙ), R ¹ represents, as described above, a linear or branched alkyl having (1) an alkoxy group, a hydroxyl group or a halogen atom as a substituent. A linear or branched alkyl group having 18 carbon atoms or a linear or branched alkoxy group having 18 carbon atoms is particularly preferable.

[0098] The alkyl group of alkylimino groups W indicated by the formula (ΠΙ) in W- CO- R ^2, preferably a linear or branched group having 1 one 8 carbon tool W is particularly preferably an imino group which is preferably an imino group or an alkylimino group.

[0099] W- X- as R ² in R ² is Aruke such Bulle groups - group, Al keys such as acetylene group - le, and the like, these Aruke - group, alkyl - le are For example, the alkyl group in R ¹ , an alkyl group having 11 to 10 carbon atoms similar to the substituent of the alkoxy group, an alkoxy group having 11 to 10 carbon atoms, a cycloalkyl group having 11 to 10 carbon atoms, a halogen atom, It may have an aryl group or the like as a substituent.

[0100] Among the R ^2, an alkyl group or Hue of 1 one 8 carbon - Good be substituted by Le group

V ヽ vinyl groups are particularly preferred.

[0101] Preferred specific examples are shown below.

11]

[0103] [Formula 12]

The compound having the maximum absorption near 437 nm includes a compound of the following formula (IV).

[0105] [Formula 13]

[In the formula (IV), R ° represents an alkyl group which may have a substituent, a cycloalkyl group which may have a substituent, and an aryl which may have a substituent. Represents a group or a hydrogen atom; R ⁴ is an alkyl group which may have a substituent, an alkoxy group which may have a substituent, an alkoxycarbol group which may have a substituent, and which may have a substituent A good alkyl group, an aryl group which may have a substituent, an aryloxy group which may have a substituent, an aryloxycarbol group which may have a substituent, R ⁵ represents an amino group or a hydrogen atom which may have a substituent, and R ⁵ represents an alkyl group which may have a substituent, a cycloalkyl group which may have a substituent, Represents an aryl group or a hydrogen atom which may be possessed, Y represents an oxygen atom or an imino group, and these R ⁴ , R ⁵ and Y are different from each other in both pyrazole rings. Is also good. ]

[0107] The alkyl group of the substituents R ³ and R ⁵ in Formula (IV), for example, a methyl group, Echiru group, propyl group, butyl group, a pentyl group, a hexyl group, a heptyl group, Okuchiru group, decyl A straight-chain or branched-chain group having 120 carbon atoms, such as a group, a pendecyl group, a dodecyl group, a tridecyl group, a pentadecyl group, etc., and a cycloalkyl group of R and R

3 5

Examples thereof include a group having 120 carbon atoms such as a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, and the aryl groups of R ³ and R ⁵ include Examples include a phenyl group and a naphthyl group.

[0108] Examples of the substituent for the alkyl group, the cycloalkyl group and the aryl group include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, C1-C10 alkyl groups such as decyl groups, methoxy, ethoxy, propoxy, butoxy, pentyloxy, hexyloxy, heptyloxy, octyloxy and decyloxy groups, etc. Aryl groups such as alkoxy group, phenyl group, naphthyl group, aryloxy groups such as phenoxy group, naphthyloxy group, sulfonamide group, alkylsulfonamide group, dialkylsulfonamide group, nitro group, hydroxyl group, fluorine atom, chlorine And a halogen atom such as a bromine atom.

In the formula (IV), R ³ and R ⁵ may have (1) an alkoxy group, an aryl group, an aryloxy group, a hydroxyl group or a halogen atom as a substituent in the above. Linear or branched alkyl groups, (2) alkyl groups, alkoxy groups, sulfonamide groups, alkylsulfonamide groups, dialkylsulfonamide groups, nitro groups, hydroxyl groups, Is preferably an aryl group which may have a halogen atom as a substituent, or (3) a hydrogen atom is preferred. In particular, R ³ is a hydrogen atom, a linear or branched chain having 118 carbon atoms Al kill group, or Hue - the preferred instrument R ⁵ is group, a linear or partial岐鎖chain alkyl group having 1 one 8 carbon atoms, or, have an alkyl group or a halogen atom as a substituent Still, a phenol group is preferred.

The alkyl group of R ⁴ in the formula (IV) is the same as the alkyl group of R ³ and R ^5. The alkoxy group of R ⁴ is, for example, a methoxy group, an ethoxy group, a propoxy group. Straight-chain or branched group having 1 to 20 carbon atoms such as group, butoxy group, pentyloxy group, hexyloxy group, heptyloxy group, octyloxy group, decyloxy group, pendecyloxy group, dodecyloxy group, tridecyloxy group, pentadecyloxy group, etc. A branched chain group; an alkoxycarbonyl group for R ⁴ includes a carboxyl group having the alkoxy group; and a cycloalkyl group for R includes the cycloalkyl group for IT and similar groups can be mentioned, the same as Examples Ariru group R ^4, mentioned as Ariru group in R and R It includes groups of R ⁴ § Li

3 5

Examples of the alkoxy group include a phenoxy group and a naphthyloxy group. Examples of the aryloxycarbyl group for R ⁴ include the above-mentioned aryloxy group-containing carboxyl group.

[0111] Examples of the substituents of the alkyl group, alkoxy group, alkoxycarbol group, cycloalkyl group, aryl group, aryloxy group, aryloxycarbol group and amino group include, for example, the alkyl group in R ³ and R ^5, cycloalkyl group, and the substituents the same alkyl groups Ari group, an alkoxy group, Ariru group, Ariruokishi group, scan Ruhon'amido group, an alkylsulfonamido group, a dialkyl sulfonamide group, Examples include a nitro group and a halogen atom, an acyl group such as a propioyl group, a butyryl group and a benzoyl group, a sulfonyl group such as a methanesulfonyl group and a benzenesulfonyl group, a hydroxyl group, a halogen atom, and the like.

[0112] In the formula (IV), examples of R ^4, in the, (1) an alkoxy group, Ariru group, have § Riruokishi group, a hydroxyl group or a halogen atom as a substituent, even I, straight It may have a linear or branched alkyl group or (2) an alkoxy group as a substituent. Or branched alkoxy group, (3) a carboxy group having an alkoxy group as a substituent, (4) an alkyl group, an alkoxy group, a sulfonamide group, an alkyl sulfonamide Group, dialkylsulfonamide group, nitro group, hydroxyl group or halogen atom as a substituent, or aryl group, (5) aryl group optionally having an alkyl group or an alkoxy group as a substituent And a (6) alkyl group, an acyl group or a sulfol group as a substituent, and an amino group is particularly preferable, especially a straight-chain having 18 carbon atoms. A chain or branched alkyl group is preferred

In the above formula (IV), Y is preferably an oxygen atom. Further, in the present invention, as the dipyrazolylmethine compound represented by the formula (IV), R ⁵ and Y may be different from each other between both pyrazole rings, Those that are symmetrical with respect to the methine group are preferred.

As the compound having the maximum absorption near 437 nm, among the compounds of the formula (IV), even when Y is an oxygen atom, R ³ is a hydrogen atom, and R ⁴ and R ⁵ have a substituent, Particularly preferred are compounds having a good alkyl group or a substituent and having a good aryl group!

[0115] Preferred specific examples are shown below.

[0116] [Formula 14]

[0117] By having a sharp minimum value in the wavelength range of 480 to 520 nm, only the wavelength between the valleys between blue and green can be selectively cut. In order to generate a sharp minimum value in the wavelength range of 480 to 520 nm, a compound having the maximum absorption in the wavelength range of 480 to 520 nm is represented by the following formula ( Specific squarylium dyes having a pyrazolyl group shown in (XV) can be used

[0118] [Formula 15]

[In the formula (XV), A and B each independently represent a pyrazolyl group which may have a substituent.

And a dipyrazolylsquarylium compound represented by the formula:

[0120] More specifically, it is represented by the following formula (XVI).

[0121] [Formula 16]

[0122] [In the formula (XVI), R ¹ represents an alkyl group which may have a substituent, and R ² may have a substituent and may be an alkyl group or a substituent. Yes, it is good !, indicates an aryl group. Note that each of R ¹ and R ² may be the same or different. ]

The dipyrazolylsquarylium-based compound represented by the formula (XV) has a pyrazole ring at each end. In the formula (XV), the substituents Α and Β are optional substituents as long as the dipyrazolylsquarylium-based compound has a minimum value in a light transmittance curve in a wavelength range of 480 to 520 nm. Each is independently substituted and is a virazolyl group, and its molecular weight is usually 500 or less. Preferred pyrazolyl groups may be substituted and include 4-pyrazolyl groups, and more preferably a group represented by the following formula (XIV). [0124] [Formula 17]

[In the formula (XIV), R ⁴ represents a substituted or unsubstituted! Alkyl group or an aryl group which may be substituted; and R ⁵ represents a substituted or unsubstituted aryl group. An alkyl group which may have a group, an alkoxy group which may have a substituent, an aryl group which may have a substituent, an aryl group which may have a substituent, an amino group, ! Represents an alkoxycarbonyl group or an arylcarbonyl group, and X represents an oxygen atom or an NH group. Show. ]

In the formula (XIV), R ⁴ is a substituted or unsubstituted aryl group, an alkyl group or an aryl group which may be substituted. It is an alkyl group which may have a substituent. The alkyl group of the substituents R ^4, for example, a methyl group, Echiru group, propyl group, butyl group, a pentyl group, a hexyl group, a heptyl group, Okuchiru group, decyl group, Undeshiru group, dodecyl group, tridecyl group And a linear, branched or cyclic alkyl group having 120 carbon atoms, such as pentadecyl group, cyclohexyl group and the like. The Ariru group of the substituent R ^4, for example, phenyl group, and a naphthyl group. Examples of the substituent for the alkyl group and aryl group include, for example, a group having 11 carbon atoms such as a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group and a decyl group. 10-alkyl group; methoxy group, ethoxy group, propoxy group, butoxy group, pentyloxy group, hexyloxy group, heptyloxy group, octyloxy group, decyloxy group, etc., alkoxy group having 110 carbon atoms; phenyl group, naphthyl Aryloxy group such as phenoxy group, naphthyloxy group, etc .; sulfolamide group, alkylsulfolamide group, dialkylsulfonamide group, arylsulfonamide group, diarylsulfolamide group, alkylarylsulfonyl group. Substituted with an alkyl or aryl group such as Also good, sulfo - Ruamido group; - DOO port group, a hydroxyl group, a fluorine atom, a chlorine atom, a halogen atom such as a bromine atom . Preferred examples of the alkyl group which may be substituted for the substituent R ⁴ include a carbon atom which may be substituted with a substituent selected from the group consisting of an alkoxy group, an aryl group, an aryloxy group, a hydroxyl group and a halogen atom. A straight-chain or branched-chain alkyl group having the number of 11 to 20 is preferred, and an alkoxy group or an alkyl group which may be substituted with a halogen atom is more preferred. And 8 alkyl groups. Preferred examples of the aryl group which may be substituted with the substituent R ⁴ include an alkyl group, an alkoxy group, a sulfolamide group, a hydroxyl group and an aryl group which may be substituted with a nitrogen atom, More preferred are an alkyl group, an alkoxy group and an aryl group which may be substituted with a halogen atom, and particularly preferred are a phenyl group and an alkylphenyl group.

In the formula (XIV), the substituent R ⁵ may have a substituent, may have a substituent, an alkyl group, an alkoxy group may have a substituent, or a substituent. May have an aryl group or a substituent; may have an amino group or a substituent; and / or may have an alkoxycarbol group or a substituent. A aryloxycarbyl group, preferably a substituted or substituted alkyl group or a substituted or unsubstituted alkyl group, preferably a substituted or unsubstituted aryl group. An optionally substituted alkyl group is particularly preferred. Substituted substituents R ^5, be good, the alkyl group, having a substituent of the substituted groups R ^4, be good, the same as the Al kill group. The alkoxy group of substituents R ^5, a methoxy group, E butoxy group, a propoxy group, a butoxy group, Penchiruokishi group, to Kishiruokishi group, the Petit Ruokishi group, Okuchiruokishi group, an alkoxy group having a carbon number of 1 one 20 such Deshiruokishi group Is mentioned. Examples of the substituent of the alkoxy group include an alkyl group having 11 to 10 carbon atoms such as a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group and a decyl group; A C11-C10 alkoxy group such as a ethoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentyloxy group, a hexyloxy group, a heptyloxy group, an octyloxy group or a decyloxy group; an aryl group such as a phenyl group or a naphthyl group; Groups, an aryloxy group such as a naphthyloxy group; a hydroxyl group; a halogen atom such as a fluorine atom, a chlorine atom, and a bromine atom. Evenヽsubstituted substituent R ⁵ good, as the Ariru group, it may also beヽhave a substituent of the substituent R ⁴ And aryl groups. Substituent R ⁵ may have a substituent, and the amino group may be an unsubstituted amino group; a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group An amino group substituted by a linear or branched alkyl group having 120 carbon atoms, such as octyl, decyl, decyl, pendecyl, dodecyl, tridecyl, pentadecyl; acetyl, propionyl, butyryl And an amino group substituted with an acyl group such as a group.

[0128] alkoxycarbonyl substituents R ⁵ - The group, methoxycarbonyl - Kishiruo group, pentyl Ruo propoxycarbonyl sulfonyl group to - group, Etokishikaru ball - group, propoxy carbo - group, butoxycarbonyl Examples thereof include straight-chain or branched-chain alkoxycarbol groups having 120 to 120 carbon atoms, such as a xycarbol group, a heptyloxycarbol group, and an octyloxycarbol group. Examples of the substituent of the alkoxycarbyl group include the same substituents as those of the alkoxy group.

[0129] substituent R ⁵ may have a substituent group § reel O propoxycarbonyl - The group, Hue - Ruokishikarubo - le group, p- tolyl O propoxycarbonyl - le group, p- Metokishifue - Ruokishika Substituted with an alkyl group or an alkoxy group such as a reporter group, an aryloxy group and the like can be mentioned. In the formula (XIV), X represents an oxygen atom or an NH group, and among them, an oxygen atom is preferable.

In the dipyrazolyl squarylium-based compound, A and B in Formula (XV) may be the same or different, but the stability as a dye and the ease of synthesis are as follows. Is most preferable when A and B are equal, that is, when they are symmetric. Specific examples of the compound represented by the formula (XV) are shown in the following formula and Table 1.

[8] [ιειο]

608CT0 / l700Zdf / X3d 6ε 990 SOOZ OAV

Further, the dipyrazolylsquarylium-based compound represented by the formula (XV) is preferably a compound obtained by combining the substituents A and B, and the substituent is preferably represented by the following formula (XVI). In particular, a dibirazolylsquarylium-based compound is more preferable, and R ² may have a substituent, and a compound in which R ² is an alkyl group is still more preferable. The dipyrazolyl squarylium-based compound represented by the formula (XVI) is a novel compound and effectively absorbs light in the 480-520 nm region, which is a valley between blue and green, and has a narrower half-value width. It does not hinder the emission of blue or green phosphors of primary colors, so it can be used for color tone adjustment, color purity improvement, or color reproduction. It is a dye particularly useful as a range expanding dye.

[0134] [Formula 19]

[In the formula (XVI), R ¹ represents an alkyl group which may have a substituent, and R ² may have a substituent and be an alkyl group or a substituent. Yes, it is good !, indicates an aryl group. Here, each of R ¹ and R ² may be the same or different. ]

In the formula (XVI), having the substituents of the substituents R ¹ and R ² ! / Or 良!, Having an alkyl group and a substituent, R ⁴ and R ⁵ may have the same substituents, and may have an alkyl group and a substituent, and may have an aryl group. Among them, R ¹ is preferably an alkoxy group or an alkyl group optionally substituted by a halogen atom, and particularly preferably an unsubstituted alkyl group having 118 carbon atoms. Of these, an alkyl group which may be substituted with an alkoxy group or a halogen atom, or an aryl group which may be substituted with an alkyl group, an alkoxy group or a halogen atom, is more preferable. It is a substituted alkyl group having 18 carbon atoms, a phenyl group or an alkylphenyl group, particularly preferably an unsubstituted alkyl group having 18 carbon atoms.

[0137] It is preferable that the electronic display filter of the first invention further contain a compound having a maximum absorption around 530 to 610 nm. As compounds having a maximum absorption around 530-6 lOnm, in addition to the above formulas (1), (Π) and (III), the following formulas (V) — (XI), (XII), (XIII ) And (XVII). [0138] [Formula 20]

[In the formula (V), R ¹ represents an alkyl group which may have a substituent, an alkoxy group which may have a substituent, and a cycloalkyl which may have a substituent And a substituted or unsubstituted aryl group, or a substituted or unsubstituted aryloxy group or a halogen atom, and W in W—X—R ² represents an imino group or an alkylimino X represents a carbonyl group or a sulfol group; R ² represents a monovalent group or a hydrogen atom; and i and i are each independently an integer of 0-5 And m and m each independently represent an integer of 0-5, n and n 'each independently represent an integer of 0-3, i + m + n≤5, i' + m, + a Ita'≤5, when R ¹ and W- X- R ² are plural respectively present on the benzene ring, each of R ¹ and W- X- R ^2, one of the benzene ring Or the other benzene ring may be different from each other. ]

[0140] Examples of the alkyl group of R ¹ in the formula (V) include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a decyl group, a decyl group, Examples thereof include straight-chain or branched-chain groups having 120 carbon atoms, such as dodecyl, tridecyl, and pentadecyl groups.Examples of the alkoxy group for R ¹ include a methoxy group, an ethoxy group, and a propoxy group. Or a straight-chain having 120 carbon atoms such as butoxy, pentyloxy, hexyloxy, heptoxy, octyloxy, decyloxy, pendecyloxy, dodecyloxy, tridecyloxy, pentadecyloxy, etc. the include branched chain groups, the cycloalkyl group of R ^1, for example, Shikuropuro propyl group, cyclobutyl group, cyclopentyl group, Hexyl group black, include groups heptyl group of which carbon number 1 one 20 cycloheteroalkyl, the Ariru group R ^1, for example, phenyl group and a naphthyl group, a Ariruokishi group for R ^1, Examples include a phenoxy group and a naphthyloxy group. Examples of the halogen atom for R ¹ include a fluorine atom and Examples include a chlorine atom and a bromine atom.

[0141] Examples of the substituent of the alkyl group, alkoxy group, cycloalkyl group, aryl group and aryloxy group include, for example, methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group , Octyl, decyl, etc., C 11 -C 10 alkyl, methoxy, ethoxy, propoxy, butoxy, pentyloxy, hexyloxy, heptyloxy, octyloxy, decyloxy, etc.

C10-C10 cycloalkyl group such as alkoxy group, cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, cycloheptyl group, etc., hydroxyl group, fluorine atom, chlorine atom, bromine atom, etc. And the like.

[0142] In Formula (V), examples of R ^1, among the above, (1) an alkoxy group, a hydroxyl group or Bruno, a androgenic atom as a substituent, even I, straight-chain or branched-chain An alkyl group, (2) an alkoxy group as a substituent, or a linear or branched alkoxy group, (3) an alkyl group, an alkoxy group or a halogen atom as a substituent. Particularly, a aryl group, (4) an alkyl group, an alkoxy group or an aryloxy group which may have a halogen atom as a substituent, or (5) a halogen atom is preferable. A chain or branched chain alkyl group or a straight or branched chain alkoxy group having 18 carbon atoms is more preferable.

As the alkyl group in the alkylimino group of W in W—X—R ² in the formula (V), a linear or branched group having 118 carbon atoms is preferable. In particular, an imino group or an alkylimino group is preferred, and an imino group is more preferred. When X is a sulfo group, R ² is not a hydrogen atom.

[0144] As the monovalent group of R ² of W- X- R ² in Formula (V), at for example, the same alkyl groups and § alkyl group for R ^1, same as the alkoxy group in the R ¹ alkoxy group, the same cycloalkyl groups and cycloalkyl group in R ^1, the same Ariru groups and Ari Le group in R ^1, the same Ariruokishi group and Ariruokishi group in R ^1, an amino group, and a 3- Heterocyclic groups such as a pyridyl group, a 2-furyl group, a 2-tetrahydrofuryl group, and a 2-chel group; and the like, such as an alkyl group, an alkoxy group, a cycloalkyl group, an aryl group, an aryloxy group, and an amino group. And a heterocyclic group are, for example, Alkyl groups, alkoxy groups, cycloalkyl groups, aryl groups, and aryloxy groups having the same substituents as in the above, such as alkyl groups having 1 to 10 carbon atoms, alkoxy groups having 1 to 10 carbon atoms, and cycloalkyl groups having 1 to 10 carbon atoms Group, a halogen atom, an aryl group, etc., as a substituent.

[0145] Of the above R ² in the formula (V), the same alkyl group as the preferable group of the above R ¹ , a phenyl group which may be substituted with an alkyl group having 18 carbon atoms, V ヽ 2-furyl group, alkyl group having 18 carbon atoms substituted with 8 alkyl groups, molybdenum, phenyl group, alkyl group having 18 carbon atoms! And a cyclohexyl group which may be substituted with a 2-tetrahydrofuryl group or a C18 alkyl group.

[0146] In the above formula, i and i 'each independently represent an integer of 0-5, m and m' each independently represent an integer of 0-5, and n and n 'each represent Independently represents an integer of 0 to 3, i + m + n≤5, and i '+ m' + η'≤5, preferably i and i'force, i + m + n≤3 , And i ′ + m ′ + η ′ ≦ 3, and more preferably, i and i ′ are 1 to 3 integers, and m and m ′ are 0. Also, when you there are a plurality of R ¹ and W- X- R ² each on the benzene ring, each of R ¹ and W- X- R ^2, in one benzene ring, or, the other benzene ring May be different from each other. Rs adjacent to each other on one benzene ring may be connected to each other to form an alkanediyl group, an alkylenedioxy group, or the like to form a cyclic structure.

[0147] [Formula 21]

[In the formula (VI), R ¹ represents a halogen atom, an alkyl group which may have a substituent, an alkyl group which may have a substituent! M represents an integer of 13 and n represents an integer of 1-4. ]

[0149] formula (VI), examples of the substituent R ^1, for example, the following (a) - (g) of something like illustration Wear.

(a) a halogen atom such as a fluorine atom, a chlorine atom and a bromine atom;

(b) C 1 carbon atoms such as methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, decyl, pendecyl, dodecyl, tridecyl, pentadecyl, etc. One linear or branched alkyl group;

(c) Alkoxycarbonyl groups such as hydroxy, methoxycarboxy, ethoxycarbonyl, butoxycarbonyl, acetyloxycarbonyl, propyloxycarbonyl, etc. A straight-chain having 1 to 20 carbon atoms having an alkoxycarbonyloxy group, a cyclohexyl group, a phenyl group, etc. such as a methoxy group, a methoxycarboxy group, an ethoxycarboxy group or a butoxycarboxy group. Linear or branched alkyl groups;

(d) carbon atoms such as methoxy, ethoxy, propoxy, butoxy, pentyloxy, hexoxy, heptyloxy, octyloxy, deoxy, pentadecyloxy, dodecyloxy, tridecyloxy, pentadecyloxy, etc. A straight-chain or branched-chain alkoxy group of the number 1 to 20;

(e) having a carbon number of 11 to 20 having an alkoxy group having a carbon number of 118 such as a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentyloxy group, a hexyloxy group, a heptyloxy group, an octyloxy group; Linear or branched alkoxy groups;

(f) anorecheninole groups such as etheninole groups;

(g) As a substituent, an alkyl group such as methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, decyl group, phenyl group, 4-hydroxyphenyl group, 4 Alkoxy (e.g., C11-C10 alkoxy group) phenolic group, 3,4 bisalkoxy (e.g., C11-C10 alkoxy group) phenolic group, 3,5-bisalkoxy (e.g., Phenolic groups such as ethyl groups substituted with an alkoxy group having 11 to 10 carbon atoms) and 3,4,5-trisalkoxy (for example, alkoxy groups having 11 to 10 carbon atoms);

Among them, R ¹ is a linear or branched alkyl group having 16 carbon atoms; a linear or branched alkyl group having 16 carbon atoms substituted with a hydroxyl group or an alkoxycarbyl group. An alkyl group; carbon number], an alkoxy group having 6; or an ethenyl group having a substituent.

[0151] [Formula 22]

[0152] [In the formula (VII), R ⁶ represents an alkyl group which may have a substituent, a cycloalkyl group which may have a substituent, or an aryl group which may have a substituent. Or represents a hydrogen atom, R ⁷ is an alkyl group which may have a substituent, an alkoxy group which may have a substituent, an alkoxycarbonyl group which may have a substituent, Cycloalkyl group which may have a substituent, aryl group which may have a substituent group, aryloxy group which may have a substituent group, aryl group which may have a substituent group An oxycarbol group, an amino group which may have a substituent, a hydroxyl group, or a hydrogen atom, Z represents an imino group or an alkylimino group, L represents a hydrogen atom or XR (R represents Represents a monovalent group or a hydrogen atom, and X represents a carboxy group or a sulfol group ), And these R ⁶ , R ⁷ , L and Z may be different from each other between both pyrazole rings. ]

[0153] Examples of the alkyl group of the substituent R ⁶ in the formula (VII) include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a decyl group, Examples thereof include straight-chain or branched-chain groups having 120 carbon atoms, such as pendecyl, dodecyl, tridecyl, and pentadecyl groups.Examples of the cycloalkyl group for R ⁶ include, for example, cyclopropyl and cyclobutyl groups. , cyclopentyl group, cyclohexyl group, the group having a carbon number of 1 one 20, such as heptyl group consequent opening include cyclohexane, as the Ariru group R ^6, e.g., Hue - group, and a naphthyl group.

[0154] Examples of the substituent for the alkyl group, the cycloalkyl group, and the aryl group include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, and an octyl group. , A decyl group, a C11-C10 alkyl group, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentyloxy group, a hexyloxy group, a heptyloxy group. C 11 -C 10 alkoxy groups such as cis, octyloxy, decyloxy,

-Aryl group such as naphthyl group, aryloxy group such as phenoxy group and naphthyloxy group, formamino group, alkylcarbolamino group, alkylsulfolamino group, aminocarbol group, alkylaminocarbol Group, dialkylaminocarbol group, aminosulfol group, alkylaminosulfur group, dialkylaminosulfur group, amino group, nitro group, hydroxyl group, halogen atom such as fluorine atom, chlorine atom, bromine atom And the like.

In the above formula (VII), R ⁶ may be, as described above, (1) having an alkoxy group, an aryl group, an aryloxy group, a hydroxyl group or a halogen atom as a substituent, and Or a branched or branched alkyl group, or (2) an alkyl group, an alkoxy group, an amino group, an alkylcarbolamino group, an alkylsulfolamino group, a nitro group, a hydroxyl group or a halogen atom as a substituent. Especially preferred are aryl groups, and particularly preferred are linear or branched alkyl groups having 18 to 18 carbon atoms which may have an alkoxy group as a substituent.

In the formula (VII), the alkyl group for R ⁷ is the same as the alkyl group for R ^6, and the alkoxy group for R ⁷ is, for example, a methoxy group, an ethoxy group, a propoxy group, a butoxy group Straight-chain or branched-chain groups having a carbon number of 120 such as pentyloxy, hexyloxy, heptyloxy, octyloxy, decyloxy, pendecyloxy, dodecyloxy, tridecyloxy, and pentadecyloxy. elevation Gerare, the R ⁷ alkoxycarbonyl - the group, the carboxyalkyl having an alkoxy group - Le group. Examples of the cycloalkyl group R ^7, the groups as listed as the cycloalkyl group for R ⁶ and examples of the Ariru group R ^7, include the same groups as mentioned as § Li Lumpur group for R ^6, the R ⁷ The aryloxy group includes a phenoxy group, a naphthyloxy group and the like, and the aryloxycarbonyl group for R ⁷ includes a carbonyl group having the aryloxy group.

[0157] Examples of the substituents of the alkyl group, alkoxy group, alkoxycarbol group, cycloalkyl group, aryl group, aryloxy group, aryloxycarbol group and amino group include, for example, Substitution of alkyl, cycloalkyl and aryl groups at R ⁶ The same alkyl group, alkoxy group, aryl group, aryloxy group, sulfonamide group, alkylsulfonamide group, dialkylsulfonamide group, nitro group, nitro group, halogen atom, and Examples thereof include an acyl group such as a propionyl group, a butyryl group, and a benzoyl group; a sulfonyl group such as a methanesulfonyl group and a benzenesulfonyl group; and a hydroxyl group.

[0158] In the formula (VII), examples of R ^7, in the, (1) an alkoxy group, Ariru group, have Ariruokishi group, a hydroxyl group or a halogen atom as a substituent, even I, straight-chain Or (2) an alkoxy group as a substituent, or (3) an alkoxy group as a substituent. A carbon group having a good alkoxy group, (4) an alkyl group, an alkoxy group, a sulfonamide group, an alkylsulfonamide group, a dialkylsulfonamide group, a nitro group, a hydroxyl group or a halogen atom as a substituent; A aryl group, (5) an alkyl group or an alkoxy group as a substituent, and a carbyl group having an aryl group, or (6) an alkyl group, an acyl group or a sulfo group. A straight chain or branched chain alkyl group having 118 carbon atoms which may have an alkoxy group as a substituent is preferable, and an amino group is preferred. Better ,.

[0159] X- The monovalent groups represented by R in R, the alkyl group in R ^6, cycloalkyl group, alkoxy group, Ariruokishi group having Ariru group in R ^6, amino group, 3-pyridyl group, 2 And heterocyclic groups such as furyl group, 2-tetrahydrofuryl group, and 2-chel group, and anorecheninole groups such as bur group.

In the formula (VII), the alkyl group of the alkylimino group represented by Z is preferably a linear or branched one having 18 carbon atoms. Z is preferably an imino group or an alkylimino group. Particularly preferred are imino groups, which are preferred. When X is a sulfonyl group, R is not a hydrogen atom. [0161] [Formula 23]

(Cor)

[In the formula (VIII), R ¹ represents an alkyl group which may have a substituent, an alkoxy group which may have a substituent, a cycloalkyl group which may have a substituent Represents an aryl group or a substituted or unsubstituted aryl group or a halogen atom; W represents an imino group, an alkylimino group or an oxygen atom; R ² represents a monovalent group or a hydrogen atom, i is an integer of 0-5, m is an integer of 0-5, n Is an integer of 0-3, i + m + n≤5, and when there are a plurality of R ¹ and W—X—R ² on the benzene ring, respectively, R ¹ and W—X—R ² Each may be different. R ⁶ is an alkyl group which may have a substituent, may have a substituent, may have a cycloalkyl group, may have a substituent! /, May have an aryl group or a hydrogen atom. R ⁷ represents an alkyl group which may have a substituent, an alkoxy group which may have a substituent, an alkoxycarbol group which may have a substituent, Cycloalkyl group which may be substituted, aryl group which may have a substituent group, V which has a substituent group, and aryloxy group which has a substituent group; Z represents an oxygen atom, an imino group or an alkylimino group; L represents a hydrogen atom or XR ( R represents a monovalent group or a hydrogen atom, and X represents a carboxy group or a sulfol group.) Show. ]

In the formula (VIII), R ² , W, X, 1, m, and n represent the same meaning as in the formula (V), and R ⁶ , R ⁷ , L, and Z represent the formula (VII) Represents the same meaning as [0164] [Formula 24]

[In the formula (IX), R ¹ represents a hydroxyl group, an amino group, an alkyl group which may have a substituent or an aryl group which may have a substituent, and R ² represents An alkyl group which may have a group, an alkoxy group which may have a substituent, a cycloalkyl group which may have a substituent, an aryl group which may have a substituent, or halogen Represents an atom, and s represents an integer of 0-5. ]

The alkyl group of R ¹ in the [0166] formula (IX), for example, a methyl group, Echiru group, propyl group, butyl group, a pentyl group, a hexyl group, a heptyl group, Okuchiru group, decyl group, © down decyl , A dodecyl group, a tridecyl group, a pentadecyl group and the like, and a straight-chain or branched-chain group having 120 carbon atoms.Examples of the aryl group of R ² include a phenyl group and a naphthyl group. .

The alkyl group of R ² in [0167] formula (IX), for example, the R ¹ and include similar alkyl group, the Ariru group R ^2, for example, include the same Ariru group and the R ¹ It is possible. Examples of the alkoxy group for R ² include a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentyloxy group, a hexyloxy group, a heptyloxy group, an octyloxy group, a decyloxy group, a pendecyloxy group, a dodecyloxy group, a tridecyloxy group, and a pentadecyloxy group. Examples of the group include a linear or branched group having 120 carbon atoms such as a group.Examples of the cycloalkyl group for R ² include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, and a cycloalkyl group. Examples thereof include a group having 120 carbon atoms such as a heptyl group, and examples of the halogen atom for R ¹ include a fluorine atom, a chlorine atom, and a bromine atom.

[0168] Examples of the substituent for the alkyl group, alkoxy group, cycloalkyl group and aryl group include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, Carbons such as heptyl, octyl, decyl and other alkyl groups having 110 carbon atoms, methoxy, ethoxy, propoxy, butoxy, pentyloxy, hexyloxy, heptyloxy, octyloxy, decyloxy, etc. Aryl groups such as cycloalkyl groups having 11 to 10 carbon atoms such as alkoxy groups, cyclopropyl groups, cyclobutyl groups, cyclopentyl groups, cyclohexyl groups, and cycloheptyl groups, phenyl groups, naphthyl groups, and the like; Examples thereof include a halogen atom such as a hydroxyl group, a fluorine atom, a chlorine atom, and a bromine atom.

[0169] [Formula 25]

[In the formula (X), R ¹ represents a hydroxyl group, an amino group, an alkyl group which may have a substituent or an aryl group which may have a substituent, and R ² represents Represents an alkyl group which may have a group or an aryl group which may have a substituent, and s represents an integer of 0 to 3. ]

[0171] expressions in (X), the alkyl group of the RR ^2, for example, a methyl group, Echiru group, propyl group, butyl group, a pentyl group, a hexyl group, a heptyl group, Okuchiru group, decyl group, Undeshiru group , A dodecyl group, a tridecyl group, a pentadecyl group and the like, and a straight-chain or branched-chain group having 112 carbon atoms.

The Ariru group R ^2, for example, Hue - group, and a naphthyl group.

[0172] Examples of the substituent of the alkyl group and the aryl group include those having 1 carbon atom such as a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, and a decyl group. (I) C10-C10 alkoxy, cyclopropyl, cyclobutyl, etc., such as 10 alkyl, methoxy, ethoxy, propoxy, butoxy, pentyloxy, hexyloxy, heptyloxy, octyloxy, decyloxy, etc. C 1-C 1 such as tyl, cyclopentyl, cyclohexyl and cycloheptyl Aryl groups such as cycloalkyl group, phenyl group, naphthyl group, hydroxyl group, fluorine atom

And a halogen atom such as a chlorine atom and a bromine atom.

[0173] [Formula 26]

[In the formula (XI), R ^{1 to} R ⁸ each independently represent a hydrogen atom, a halogen atom, a nitro group, a cyano group, a hydroxy group, an amino group, or an alkyl group which may have a substituent. An alkoxy group which may have a substituent, an aryl group which may have a substituent, an aryloxy group which may have a substituent, an alkylamino group which may have a substituent, A dialkylamino group which may have a substituent, an alkylthio group which may have a substituent, or an arylthio group which may have a substituent; R ¹ and R ² , R ³ and R ⁴ , R ⁵ and R ⁶ , and R ⁷ and R ⁸ may be linked to each other to form an aliphatic carbon ring. M represents two hydrogen atoms, a divalent metal atom, a trivalent monosubstituted metal atom, a tetravalent disubstituted metal atom or an oxymetal atom. ]

[0175] In the formula (XI), examples of the halogen atom include a fluorine atom, a chlorine atom, and a bromine atom. Examples of the alkyl group include a methyl group, an ethyl group, a propyl group, a butyl group, and a pentyl group. Carbon, hexyl, heptyl, octyl, decyl, decyl, dodecyl, tridecyl, pentadecyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, etc. Examples thereof include straight-chain, branched-chain and cyclic groups having the number of 11 to 20, and examples of the alkoxy group include a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentyloxy group, a hexyloxy group, and a heptyloxy group. Octyloxy, decyloxy, pendecyloxy, dodecyloxy, tridecyloxy, pe Examples thereof include straight-chain or branched-chain ones having 1 to 20 carbon atoms such as antadecyloxy groups, and aryl groups include, for example, And a heterocyclic aryl group such as a phenyl group, a furyl group and a pyridyl group.Examples of the aryloxy group include a hydrocarbon group such as a phenoxy group and a naphthyloxy group. Examples include a heterocyclic aryloxy group such as an aryloxy group, a cheloxy group, a fluorooxy group, or a pyridyloxy group.The alkylamino group or the dialkylamino group includes a methyl group, an ethyl group, a propyl group, and a butyl group. A straight-chain or branched-chain alkyl group having 120 carbon atoms, such as pentyl, hexyl, heptyl, octyl, decyl, pendecyl, dodecyl, dodecyl, tridecyl, pentadecyl, etc. Examples of the substituted amino group include an alkylthio group such as a methylthio group and an ethylthio group. A straight-chain of 120 carbons such as thio, propylthio, butylthio, pentylthio, hexylthio, heptylthio, octylthio, decylthio, undecylthio, dodecylthio, tridecylthio, pentadecylthio, etc. And an aryloxy group, for example, a fluorothio group or a naphthylthio group.

[0176] Examples of the substituent for the alkyl group, alkoxy group, aryl group, aryloxy group, alkylamino group, dialkylamino group, alkylthio group and arylthio group include, for example, methyl group, ethyl group, propyl group, butyl group, C11-C10 alkyl groups such as pentyl, hexyl, heptyl, octyl, decyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and cycloheptyl; methoxy Ethoxy group, propoxy group, butoxy group, pentyloxy group, hexyloxy group, heptyloxy group, octyloxy group, decyloxy group, etc., alkoxy group having 110 carbon atoms; hydroxyl group; fluorine atom, chlorine atom, bromine atom, etc. Examples include a halogen atom.

In the above formula (XI), R ¹ and R ² , R ³ and R ⁴ , R ⁵ and R ⁶ , R ⁷ and R ⁸ are each connected to form — (CH 2)

(CH 2) (CH 2) It may form an aliphatic carbon ring such as primary.

3 2 4 2 5

In the formula (XI), R ^{1 to} R ⁸ are, as described above, (1) a linear or branched chain which may have an alkoxy group or a halogen atom as a substituent. An alkyl group, (2) a straight-chain or branched-chain alkyl group as a substituent, or a cycloalkyl group, (3) an alkyl group, an alkoxy group, or a halogen atom as a substituent. Moyo A aryl group, (4) a halogen atom, or (5) a linear or branched alkyl group having 18 carbon atoms, which is preferably linked to each other to form an aliphatic carbocyclic ring. Or a case where they are linked to form (CH 2) or — (CH 2) —.

2 3 2 4

[0179] In Formula (XI), M represents two hydrogen atoms; two, three, four, eight, nine, ten, and ten groups of the periodic table based on the inorganic chemical nomenclature 1990 rule. Indicates a divalent metal atom, a trivalent mono-substituted metal atom, a tetravalent di-substituted metal atom, or an oxy metal atom, for which an elemental force belonging to genera 11, 12, 13, 14, or 15 is also selected. For example, divalent metal atoms include Cu, Zn, Fe, Co, Ni, Ru, Rd, Pd, Mn, Sn, Mg, Ti, etc., and trivalent monosubstituted metal atoms include A1— Examples include halogen atoms such as Cl, Ga—Cl, In—Cl, FeCl, and Ru—CI, and metal atoms mono-substituted with a hydroxyl group or an alkoxy group.

2

, GeCl, TiCl, SnCl, Si (OH), Ge (OH), Mn (OH), Sn (OH)

Examples thereof include a metal atom disubstituted with a 2222 222 atom, a hydroxyl group or an alkoxy group, and examples of the oxymetal include VO, MnO, and TiO. Of these, VO, Cu, Ni and Co are preferred, and VO and Cu are more preferred.

[0180] [Formula 27]

[0181] [In the formula (ΧΠ), R ^{1 to} R ⁷ each independently represent a hydrogen atom, a halogen atom, a -toro group, a cyano group, a hydroxy group, an amino group, a carboxyl group, a sulfonic acid group, 20 alkyl groups, halogenoalkyl groups with 1 to 20 carbon atoms, alkoxy groups with 1 to 20 carbon atoms, alkenyl groups with 2 to 20 carbon atoms, alkoxyalkyl groups with 2 to 20 carbon atoms, 2 to 20 carbon atoms An alkoxyalkoxy group of 6 to 20 carbon atoms, an aryloxy group of 6 to 20 carbon atoms, an acyl group of 11 to 20 carbon atoms, an alkoxycarboyl group of 2 to 20 carbon atoms, an alkylaminocarboyl group of 2 to 20 carbon atoms, C3-20 dialkylaminocarboyl group, C2-20 alkylcarboamino group, C7-20 phenylcarboamino group, C7-20 phenylaminocarbol Group, phenoxycarbol group with 7-20 carbon atoms, aralkyl group with 7-20 carbon atoms, aryl group with 6-20 carbon atoms, heteroaryl group with 4-20 carbon atoms, alkylthio group with 1-20 carbon atoms Group, 6-20 carbon atoms thiol group, 3-20 carbon atoms, alkoxycarbonyl group, 8-20 carbon atoms, aralkyloxycarbonyl group, 4-20 carbon atoms -Alkoxycarbol group, alkyl force with 412 carbon atoms, alkoxyalkoxycarbonyl group, mono (hydroxyalkyl) aminocarbol group with 2-20 carbon atoms, di (3--20 carbon atom) (Hydroxyalkyl) aminocarboyl group, C 3-20 mono ( Turkey alkoxyalkyl) Aminokarubo - group or a carbon number of 5-20 di (Al Kokishiarukiru) Aminokarubo - represents a group, a pyrrole attached to R ² and R ³ and / or R ⁵ and R ⁶ are each other physicians each ring The condensed aromatic rings formed by these may be the same or different. ]

[0182] [Formula 28]

[0183] [In the formula (ΧΙΠ), R ⁸ — R ¹¹ each independently represent a hydrogen atom, a halogen atom, a nitro group, a cyano group, a hydroxy group, an amino group, a carboxyl group, a sulfonic acid group, Alkyl group, halogenoalkyl group having 1 to 20 carbon atoms, alkoxy group having 1 to 20 carbon atoms, alkenyl group having 2 to 20 carbon atoms, alkoxyalkyl group having 2 to 20 carbon atoms, 2 to 20 carbon atoms Alkoxy alkoxy group, aryloxy group having 6 to 20 carbon atoms, acyl group having 11 to 20 carbon atoms, alkoxycarboyl group having 2 to 20 carbon atoms, alkylaminocarbol group having 2 to 20 carbon atoms, carbon number A 3-20 dialkylaminocarboyl group, a 2-20 carbon alkylcarbalumino group, a 7-20 carbon atom phenylcarboamine group, a 7-20 carbon atom phenylaminocarbol group, 7-20 carbon atoms phenoxycarbol group, 7-20 carbon atomsラ Alkyl group, C6-20 aryl group, C4-20 heteroaryl group, C1-20 alkylthio group, C6-20 phenylthio group, C3-20 arylke group Roxycarbol group, C8-C20 aralkyloxycarbon group, C4-C20 alkoxycarboxyalkoxycarbon group, C4-C20 alkyl force A mono (hydroxyalkyl) aminocarbon group having 2 to 20 carbon atoms, a di (hydroxyalkyl) aminocarboyl group having 3 to 20 carbon atoms, and a mono (alkoxyalkyl) aminocarbon group having 3 to 20 carbon atoms. R ^1G and R ¹¹ may be bonded to each other to form an aromatic ring, or a di (alkoxyalkyl) aminocarboyl group having 5 to 20 carbon atoms. ) And M represents a transition metal. ]

Specific examples of R ^{1 to} R ¹¹ in the above formulas (XII) and (ΧΙΠ) include a hydrogen atom; a nitro group; a cyano group; a hydroxy group; an amino group; a carboxyl group; a sulfonic acid group; fluorine, chlorine, bromine, and iodine. A halogen atom; methyl, ethyl, n-propyl, iso-propyl, n-butynole, iso-butynole, sec-butynole, t-butynole, n-pentynole, iso-pentynole ,

2-methylbutyl, 1-methylbutyl, neo-pentyl, 1,2-dimethylpropyl, 1,1-dimethylpropyl, cyclo-pentyl, n-hexyl, 4-methylpentyl,

3-methylpentyl, 2-methylpentyl, 1-methylpentyl, 3,3-dimethylbutyl, 2,3-dimethylbutyl, 1,3-dimethylbutyl, 2,2-dimethylbutyl, 1,2-dimethylbutyl, 1,1-dimethylbutyl, 3-ethylbutyl, 2-ethylbutyl, 1-ethylbutyl, 1,2,2-trimethylbutyl, 1,1,2-trimethylbutyl , 1-ethyl-2-methylpropyl, cyclo-hexyl, n-heptyl, 2-methylhexyl, 3-methylhexyl, 4-methylhexyl, 5-methylhexyl, 2,4-dimethylpentyl, n-octyl, 2-ethylhexyl, 2,5-dimethylhexyl, 2,5,5-trimethylpentyl, 2,4-dimethylhexyl, 2, 2,4-trimethylpentyl, n-octyl, 3,5,5-trimethylhexyl, n-nor, n-decyl, 4-ethyl Tatyl group, 4-ethyl-4,5-methylhexyl group, n-pentadecyl group, n-dodecyl group, 1,3,5,7-tetraethyl octyl group, 4-butyl octyl group, 6, 6-ethyl octyl group Group, n-tridecyl group, 6-methyl-4-butyloctyl group, n-tetradecyl group, n-pentadecyl group, 3,5-dimethylheptyl group, 2,6-dimethylheptyl group, 2,4-dimethylheptyl group , 2,2, 1,20-carbon straight-chain, branched such as 5,5-tetramethylhexyl group, 1-cyclo-pentyl-2,2-dimethylpropyl group, 1-cyclo-hexyl-2,2-dimethylpropyl group Or a cyclic alkyl group; a halogenoalkyl group having 120 carbon atoms, such as a chloromethyl group, a dichloromethyl group, a fluoromethyl group, a trifluoromethyl group, a pentafluoroethyl group, a nonafluorobutyl group; a methoxyethyl group, an ethoxyxetyl An alkoxyalkyl group having 2 to 20 carbon atoms, such as an iso-propyloxystyl group, a 3-methoxypropyl group or a 2-methoxybutyl group; a methoxy group, an ethoxy group, an n-propoxy group, an iso-propoxy group , N-butoxy, iso-butoxy, sec-butoxy, t-butoxy, n-pentoxy, iso-pentoxy, neo-pentoxy, n-hexyloxy, n-dodecyloxy Alkoxy groups having 1 to 20 carbon atoms, such as butyl, propyl, 1-butyl, iso-butyl, 1-pentyl, 2-pentenyl, and 2-methyl-1 -Butyl group, 3-methyl-1-butyl group, 2-methyl-2-butul group, 2,2-dicyanovyl group, 2-cyano-2-methylcarboxylvinyl group, 2-cyano-2 -A 2 to 20 carbon atom alkenyl group such as a methyl sulfone butyl group; a 2 to 20 carbon atom such as a methoxetoxy group, an ethoxyethoxy group, a 3-methoxypropyloxy group, and a 3- (iso-propyloxy) propyloxy group. 20 alkoxyalkoxy groups; C6-20 aryloxy such as phenoxy, 2-methylphenoxy, 4-methylphenoxy, 4-t-butylphenoxy, 2-methoxyphenoxy, 4-iso-propylphenoxy, etc. Group: formyl group, acetyl group, ethyl carboxyl group , N-propylcarbonyl group, iso-propynolecanoleboninole group, n-butynolecanoleboninole group, iso-butynolecanoleboninole group, sec-butynolenolone group, t-butynolecanoleboninole group Group, n-pentynolecanoleboninole, iso-pentynolecarbonyl, neo-pentylcarbol, 2-methylbutylcarbol, nitrobenzylcarbol, etc. (I) 20 acyl groups; alkoxycarbonyl groups such as methoxycarbyl, ethoxycarbonyl, isopropyloxycarbol, and 2,4-dimethylbutyloxycarbol; methylaminocarbonyl, ethyl C2-C20 alkylaminocarboyl such as aminocarboyl, n-propylaminocarboyl, n-butylaminocarboyl, n-hexylaminocarboyl; dimethylamino Carboyl group, getylaminocarboyl group, di-n-propylaminocarboyl group, di-n-butylaminocarboyl group, N-methyl-N-cyclohexylaminocarbo- Group A dialkylaminocarboxy group having 3 to 20 carbon atoms; an alkylcarboamino group having 2 to 20 carbon atoms such as an acetylamino group, an ethylcarbylamino group, a butylcarboxyamino group; a phenylaminocarbol group, C7-C20 phenylaminocarbol groups such as methylphenylaminocarbyl group, 2-methoxyphenylaminocarbyl group and 4-n-propylphenylaminocarbyl group; phenylcarbamino group, 4 7- to 20-carbon phenol carboxyl groups such as -ethyl phenyl carboxylamino group and 3-butylphenol carboxylamino group; phenoxycarbol group, 2-methylphenoxycarbol group, 4-methoxy C7-C20 phenoxycarbol groups such as phenoxycarbol group and 4-t-butylphenoxycarbol group; benzyl group, nitrobenzyl group, cyanobe Benzyl, hydroxybenzyl, methylbenzyl, dimethylbenzyl, trimethylbenzyl, dichlorobenzyl, methoxybenzyl, ethoxybenzyl, trifluoromethylbenzyl, naphthylmethyl, nitronaphthylmethyl, cyanonaphthylmethyl Aralkyl groups having 7 to 20 carbon atoms, such as a carbonyl group, a hydroxynaphthylmethyl group, a methylnaphthylmethyl group, a trifluoromethylnaphthylmethyl group; a phenyl group, a nitrophenyl group, a cyanophenyl group, a hydroxyphenyl group, a methylphenyl group; -Methyl, dimethylphenyl, trimethylphenyl, dichlorophenyl, methoxyphenyl, ethoxyphenyl, trifluoromethylphenyl, Ν, メチル -dimethylaminophenyl Group, naphthyl group, nitronaphthyl group, cyanonaphthyl group, hydroxyna Aryl groups having 6 to 20 carbon atoms, such as phthyl, methylnaphthyl, and trifluoromethylnaphthyl; pyrrolyl, cher, furanyl, oxazolyl, isoxoxazyl, oxaziazyl, imidazolyl, benzozoxazolyl, and benzothiazoyl. Group, benzimidazolyl group, benzofurayl group, indoyl group, etc., heteroaryl group having 412 carbon atoms; methylthio group, ethylthio group, η-propylthio group, iso-propylthio group, n-butylthio group, iso- Butylthio, sec-butylthio, t-butylthio, n-pentylthio, iso-pentylthio, 2-methylbutylthio, 1-methylbutylthio, neo-pentylthio, 1,2-dimethylpropylthio, C1-C20 alkylthio groups such as 1,1-dimethylpropylthio group; Chirufue - thio group, 2-Metokishifue - thio group, 4-t-Puchirufue carbon atoms such as a secondary Lucio group 6 20 Hue - Lucio group; Bulle group, Purobe - group, 1-butene -Butyl group, iso-butenyl group, 1-pentyl group, 2-pentenyl group, 2-methyl-1-buturyl group, 3-methyl-1-butyl group, 2-methyl-2-buturyl group, Aryloxy group having 2 to 20 carbon atoms such as 2,2-dicyanobil group, 2-cyano-2-methylcarboxyl vinyl group, 2-cyano-2-methylsulfonulbule group; aryloxycarbo Alkenyl carboxy groups having 3 to 20 carbon atoms, such as benzyl group and 2-butenoxy carbol group; and 8 to 20 carbon atoms such as benzyloxy carbol group and phenethyloxy carbol group. Ralkoxycarbol group; methoxycarbolmethoxycarbol group, ethoxycarbolmethoxycarbol group, n-propoxycarbolmethoxycarbol group, isopropoxycarbol methoxycarbol C4-C20 alkoxycarboxyalkoxycarbol group such as a group; methyl A C420-C20 alkylcarboxyalkoxycarbol group such as a carboxymethoxycarbyl group and an ethylcarboxymethoxycarbyl group; a hydroxyethylaminocarbol group and a 2-hydroxypropylamino A mono (hydroxyalkyl) aminocarbol group having 2 to 20 carbon atoms such as a carboxyl group and a 3-hydroxypropylpyraminocarbyl group; a di (hydroxyethyl) aminocarbol group, a di (2-hydroxypropyl) group ) C3-C20 di (hydroxyalkyl) aminocarboyl groups such as aminocarboyl group and di (3-hydroxypropyl) aminocarboyl group; methoxymethylaminocarboyl group, methoxylethylamino 3 carbon atoms such as a carboxyl group, an ethoxymethylaminocarboyl group, an ethoxyshetylaminocarboyl group, and a propoxyshetylaminocarboyl group 20 mono (alkoxyalkyl) aminocarboyl groups; di (methoxyethyl) aminocarboyl group, di (ethoxymethyl) aminocarboyl group, di (ethoxyhexyl) aminocarboyl group, di (propoxyshethyl) aminocarboyl group And a di (alkoxyalkyl) aminocarbol group having 5 to 20 carbon atoms such as a group.

The metal M which forms a chelate compound together with the dipyrromethene compound represented by the formula (XII) is not particularly limited as long as it is generally a metal having the ability to form a chelate conjugate with a dibenzopyrromethene compound. , 9, 10 (VIII), 11 (lb), 12 (lib), 3 (Ilia), 4 (IVa), 5 (Va), 6 (Via) ) And Group 7 (Vila group) metals, preferably transition elements such as nickel, cobalt, iron, ruthenium, rhodium, palladium, copper, osmium, iridium, platinum and zinc. [0186] [Formula 29]

[In the formula (XVII), -Τ- represents an oxygen atom, a sulfur atom, or a group represented by —CR ¹ ! ^-(R ¹ and R ² each independently have 1 to 4 carbon atoms) Or RR ² can be taken together to form a 3- to 6-membered ring which may contain an oxygen, sulfur or nitrogen atom.) And Y is each independently an organic group X represents a hydrogen atom, a halogen atom, an alkyl group or an aryl group; R represents a halogen atom, a nitro group, an alkoxy group or an aryl group; k represents 1 or 2; Represents an m-valent ion, m represents an integer of 1 or 2, and p represents a coefficient for keeping the charge neutral. ]

In the above formula (XVII),

Examples of the alkyl group having 14 carbon atoms represented by R ² include methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, tert-butyl, isobutyl and the like. Further, it may have a substituent which may contain a 3- to 6-membered ring oxygen, sulfur or nitrogen atom capable of forming R ¹ R ² force. Examples of the organic group which may have a substituent include cyclopropane 1,1-diyl, cyclobutane 1,1-diyl, 2,4-dimethylcyclobutane 1,1-diyl, 3-dimethylcyclobutane 1,1-diyl, and cyclobutane. 1,1-diyl, cyclohexane 1,1-diyl, tetrahydropyran 4,4-diyl, cyan-4,4-diyl, piperidine 4,4-diyl, N-substituted pyridin-4,4-diyl, morpholine-2,2 —Diyl, morpholine-3,3-diyl, N-substituted morpholine-2,2-diyl, N-substituted morpholine 3,3-diyl and the like. The organic group represented by Y is not particularly limited and includes, for example, methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, tert-butyl, isobutyl, amyl, isoamyl, tert-amyl, hexyl, and cyclohexyl. Xyl, cyclohexylmethyl, 2-cyclohexylethyl, heptyl, isoheptyl, tertiary heptyl, n-octyl, isootatyl, tertiary octyl, 2-ethylhexyl, nor, isonoel, decyl, dodecyl, Tridecyl, tetradecyl, pentadecyl, hex Linear, branched or cyclic alkyl groups such as decyl, peptadecyl, and octadecyl

, Preferably a C1-C8 alkyl group: butyl, 1-methylethyl, 2-methylethyl, propeninole, buteninole, isobuteninole, penteninole, hexeninole, hepteninole, octeyl, deceyl, pentadeceyl, 1 Alkyl groups such as phenylpropene 3-yl, phenol, naphthyl, 2-methylphenyl, 3-methylphenyl, 4-methylphenyl, 4-vinylphenol, 3-isopropylphenol, 4-isopropyl Fe, 4-butyl, 4-isobutyl, 4-tert-butyl, 4-xysyl, 4-cyclohexyl, 4-octyl, 4- (2-ethylhexyl) -4-phenylphenyl, 2,3-dimethylphenyl, 2,4-dimethylphenyl, 2,5-dimethylphenyl, 2,6-dimethylphenyl, 3,4-dimethylphenyl Alkylaryl groups such as 3,5-dimethylphenyl, 2,4-ditert-butylphenyl, cyclohexylphenyl, benzyl, phenethyl, 2-phenylpropane-2-yl, diphenylmethyl Arylalkyl groups such as triphenylmethyl, styryl, cinnamyl, etc., which are interrupted by an ether bond or a thioether bond, for example, 2-methoxyethyl, 3-methoxypropyl, 4-methoxybutyl, 2-methoxybutyl, Butoxyshethyl, methoxyethoxyl, methoxyethoxyethoxyl, 3-methoxybutyl, 2-phenoxyl, 2-methylthioethyl, and 2-phenylthioethyl. Further, these groups may be substituted with an alkoxy group, an alkyl group, a nitro group, a cyano group, a halogen atom, or the like. Examples of the halogen atom represented by X include a fluorine, chlorine, bromine and iodine atom, and examples of the alkyl group and the aryl group include those similar to those exemplified in the description of Y. Examples of the halogen atom for R include a fluorine, chlorine, bromine and iodine atom, and examples of the alkoxy group include a methoxy group, an ethoxy group, an n-propoxy group, an n-butoxy group, an iso-butyloxy group, and an n-xysiloxy group. A straight-chain, branched or cyclic alkoxy group having 18 carbon atoms, such as a cyclohexyloxy group or an n-octyloxy group, and the aryl group is the same as that exemplified in the description of Y. No. Examples of the anions represented by Anm- include, as monovalent, halogen-ones such as chlorine-one, bromine-one, iodine-one, and fluorine-one; -One, chloric acid, thiocyanate

, Phosphorus hexafluoride, antimony hexafluoride, boron tetrafluoride, etc. Organic sulfonic acids such as inorganic arnone, benzenesulfonic acid arnone, toluenesulfonic acid arnone, trifluoromethanesulfonic acid arnone; octyl phosphate, dodecyl phosphate, Octadecyl phosphate, ferric phosphate,

Organic phosphoric acid a-ones such as 2-phenyl-phosphoric acid-one and 2,2-methylenebis (4,6-di-tert-butylphenyl) phosphonate; Examples thereof include benzenedisulfonic acid aone, naphthalenedisulfonic acid aone and the like. Also, quencher-one, which is a metal complex conjugate, can be used if necessary.

[0189] Examples of the quenchers described above include those described in JP-A-60-234892 and JP-A-22002-350632. For example, there are the aons represented by the following formulas (A) and (B).

[0190] [Formula 30]

(B)

[In the formulas (A) and (B), R ³ and R ⁴ are each independently a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a —SO 2 —Z group (Z is a dialkylamino group, a diarylamino group , Piperidino group

2

, A morpholino group. A) and b each represent 0-3. RR ⁶ , R ⁷ and R ⁸ each independently represent an alkyl group, an alkylphenyl group, an alkoxyphenyl group or a halogenated phenyl group, M represents a nickel or copper atom, and M represents a nickel or copper atom. Represents an atom. ]

In the above formula (A), examples of the halogen atom for the substituents R ³ and R ⁴ include fluorine, chlorine, bromine and iodine atoms, and examples of the alkyl group and aryl group include those of the above formula (XVII ) And the same substituents as those exemplified in the section of the substituent Y.

[0193] Examples of the alkyl group Ζ include a linear or branched alkyl group having 118 carbon atoms, and examples of the aryl group of Ζ are substituted with a fluorine atom, a chlorine atom, or a bromine atom. And the alkyl group of the dialkylamino group may be a linear or branched alkyl group having 118 carbon atoms. As the substituents R ³ and R ⁴ , an electron-withdrawing group is preferred, and in particular, a 2,3,5-trichloro group, a 2,3-dichloro group, a 2,4-dichloro group, a 2,5-dichloro group , —SO Z is preferred. Z group includes dimethylamino group,

2

Lamino, di-n-propylamino, di-n-butylamino, piperidino, and morpholino groups are preferred, and morpholino groups are particularly preferred.

In the above formula (B), the alkyl group of R ⁵ , R ⁶ , R ⁷ and R ^{8 and} the alkyl group of the alkylphenol group include the substituent Y of the above formula (XVII) The same ones as those exemplified in the section are mentioned. Examples of the alkoxy group of the alkoxyphenyl group include the same as those exemplified in the section of the substituent R in the above formula (XVII) .Halogen of the halogenated vinyl group includes fluorine, chlorine, and bromine. And iodine atoms.

[0195] The squarylium compound of the formula (I) and the formula (X) and the compound of the formula (XV)-(XVII) have different absorption wavelengths depending on the type of the substituent, and the tetraazaporphyrin compound of the formula (XI) The absorption wavelength of the pyrromethene compound of the formula (II) differs depending on the combination of the type of the substituent and the central metal M.

[0196] Preferable examples of the squarylium-based compound of the formula (V) for expressing the minimum value K of the transmittance around 530 to 610 nm include the compounds exemplified in JP-A-2002-363434. Specific examples are shown below.

CO

[0198] [Formula 32]

[0199] Preferable examples of the squarium-based compound of the formula (VI) for expressing a minimum value K of transmittance at around 530-610 nm include, in the formula (VI), m = 3, n = 0, or And m = 3, n = l and Rl = an alkyl group which may have a substituent. The preferred specific examples are shown below. [0200] [Formula 33]

[0201] Preferred examples of the squarium-based compound of the formula (VII) for expressing a minimum value of transmittance K around 530-610 nm include, in the formula (VII), Ζ represents an imino group and L represents a hydrogen atom. And R ⁶ and R ⁷ are compounds in which an alkyl group which may have a substituent or an aryl group which may have a substituent. Preferred examples are shown below. [0202] [Formula 34]

03] 530— As a squarium-based compound of formula _(vin) for expressing a minimum value of transmittance K around 610 nm, in formula (vm), = alkyl group, -W— X—R ² , _W , An imino group, X is a carboxy group or a sulfol group, and R ² is a group which may have a substituent V, an alkyl group, or a group which has a substituent. Or a substituted aryl group; i = 2 or 3, m = 0 or 1, n = 0 or 1, Z is an oxygen atom, L is a hydrogen atom, R ⁶ and R ⁷ Force In the case of an alkyl group which may have a substituent or an aryl group which may have a substituent, force, R ^{1 =} alkoxy group, i = 0, m = 3, n = 0, and Z is imino The group, L is a hydrogen atom, and R ⁶ and R ⁷ may have an alkyl group which may have a substituent, or may have a substituent, and are preferably aryl groups. The preferred examples are shown below.

[0204] [Formula 35]

(Circle 1)

W-2)

-3)

: Ring-4)

(11-5)

[0205] As a squarium-based compound of the formula (IX) for expressing a minimum value K of transmittance at around 530-610 nm, in the formula (IX), R ¹ represents a hydrogen atom, an alkyl group or an aryl group. R ⁷ is an alkyl group, an alkoxy group, a halogen atom or an aryl group, and s is preferably a 0-2 conjugate. The following are specific examples of the preferred levels.

[9S ^] [9020]

608CT0 / l700Zdf / X3d oz 990 SOOZ OAV [0207] [Formula 37]

[0208] As a squarylium-based compound of the formula (X) for giving a minimum value of transmittance 付近 around 530-610 nm, in formula (X), R ^{1 =} hydrogen atom, alkyl group or aryl group, R ² is Alkyl or aryl groups, s = 2 or 3 compounds are preferred. Preferred examples are shown below.

[0209] [Formula 38]

(X-5) (X-6)

[0210] As the tetraazaporphyrin compound of the formula (XI) for giving a minimum value of transmittance K around 530—6 lOnm, at least four groups of R ^{1 to} R ^{8 in} the formula (XI) Is an alkyl group, the rest is a hydrogen atom, a metal atom M is a compound of VO, Cu, Ni, Co, or R ¹ and R ² , R ³ and R ⁴

, R. And R ⁶ , R ⁷ and R ⁸ are connected to form an aliphatic group such as — (CH 2) 1, — (CH 2) 1, — (CH 2)

2 3 2 4 2 5 Compounds which form a carbocycle and in which the metal atom M is VO, Cu, Ni, Co are preferred. Preferred examples are shown below.

[Formula 39]

[0212] [Formula 40]

(XI-7) (XI-8)

(XI—9) (XI-10)

(n:

(XI-11) (XI-12)

[0213] Among the pyrromethene-based compounds of the formula (II) for expressing the minimum value K of the transmittance around 530-610 nm, preferred specific examples are listed in Table 1 (1) of JP-A-10-226172. — 8 1 2—10, Table 1 (2) 2—18, 2—20, Table 1 (11) 11—1—11—10, Table 1 (4) 4—1—4— 13, Table 1 (5), 4-14 to 4-15, Table 1 (7), 4-47, 4-48, 4-51 and the like. [0214] Among the cyanine-based conjugates of the formula (XVII) for giving a minimum value of the transmittance around 530 to 600 nm, preferred specific examples together with the chemical formulas are shown in Table 2 below.

[0215] [Formula 41]

[0216] [Table 2]

[0217] In Table 2, A-1 of * 1 represents the following structure in formula (A).

[0218] [Formula 42]

[0219] In Table 2, A-2 of * 2 represents the following structure in formula (A). [0220] [Formula 43]

[0221] Compounds of the formulas (V)-(XII), (XVII), (I)-(III) and the like having the maximum absorption in the wavelength range of 530-610 nm used in the filter of the present invention include: The transmittance curve preferably has a sharp valley shape (valley shape) so as not to hinder the light emission of the display, and the half width of the transmittance curve is preferably 60 nm or less.

[0222] The electronic display filter of the first invention is characterized in that the above-mentioned squarylium-based compound and Z or tetraazaporphyrin-based compound and Z or cyanine-based compound are contained alone or as a mixture in a binder resin. Can be obtained. Specifically, (1) a film made of a binder resin containing the above-described squarylium-based compound and Z or tetraazaporphyrin-based compound and Z or cyanine-based compound on a sheet-like or film-like transparent base material. Or (2) a method of forming a single-layer sheet or film composed of a binder resin containing a squarylium-based compound and a Z or tetraazaporphyrin compound and a Z or a cyanine-based compound as described above. I can do it.

In the method of laminating, for example, a plurality of squarylium-based compounds and Z or tetrazaporphyrin-based compounds and Z or cyanine-based compounds are mixed in separate binder resins, respectively, and each binder containing the compounds is mixed. A method comprising laminating a plurality of sheets or films made of a resin and laminating a laminate comprising layers in which the obtained individual compounds are present separately on a sheet-shaped or film-shaped transparent substrate. .

[0224] The filter for an electronic display of the first invention can be configured to include functions necessary for a filter, such as antireflection, near-infrared absorption, and electromagnetic wave absorption.

[0225] The electronic display filter of the first invention has a luminous transmittance of usually 10% or more, preferably 20% or more, more preferably 30% or more, in order not to greatly reduce the luminance of the electronic display light emission. Preferably it is at least 40%. Luminous transmittance is JIS Z8105-1982 Is the ratio of the luminous flux φ t passing through an object to the luminous flux φ i incident on the object, φ ί / φ 、, and the relative spectral responsivity of the human visual system to the sense of brightness (spectral luminous efficiency ), The average of the transmittance in the wavelength range of 380 to 780 nm, which roughly correlates with the relative brightness of the object. It is used as an indicator of

[0226] In the present invention, the luminous transmittance was calculated by the following method.

Using the transmission spectrum of the filter measured by a spectrophotometer (“UV3100PC” (trade name) manufactured by Shimadzu Corporation), calculate the Y value of the tristimulus value of the XYZ color system and calculate? The luminous transmittance was determined. The calculation method is based on JIS Z8722-2000.

In this calculation, a plasma display (H32 “W32-PD2100” (trade name)) was measured as the emission spectrum of the electronic display with a spectral radiance meter (“CS-1000” (trade name) manufactured by Minolta). ) Was used.

[0227] In order to further improve the light resistance of the electronic display filter of the present invention, an ultraviolet absorbing layer can be provided. As the ultraviolet absorbing layer, a known ultraviolet absorbing layer which is not particularly limited can be used. The transmittance of the ultraviolet absorbing layer is preferably less than 5% at a light wavelength of 380 nm or less.

Further, the filter for an electronic display of the first invention can be provided with a near-infrared cut layer and an electromagnetic wave cut layer. The near-infrared cut layer is placed on the front of the display to prevent malfunctions in remote control and transmission optical communication due to near-infrared radiation emitted from the plasma display. The electromagnetic wave cut layer can use a vapor deposition or sputtering method of metal oxide, a mesh formed by etching a copper foil / a copper plating layer, or the like, and cuts an electromagnetic wave radiated from an electronic display. As the near-infrared cut layer and the electromagnetic wave cut layer, a well-known near-infrared cut layer and an electromagnetic wave cut layer which are not particularly limited can be used.

[0229] In order to further improve the light-dark contrast of the electronic display filter of the present invention, an antireflection layer and a Z or anti-glare layer can be provided. The anti-reflection layer and the anti-glare layer are not particularly limited, and may be any of known anti-reflection layers and anti-glare layers. An anti-glitter layer can be used.

[0230] This filter for electronic display can be used as a single layer or as a laminate bonded to a transparent glass, a transparent resin plate or the like. Further, the present invention can be implemented by combining the characteristics of a plurality of members such as a member directly attached to a display surface of an electronic display, a member installed as a laminate bonded to a transparent glass, a transparent resin plate, or the like. Monkey

[0231] The electronic display filter of the first invention can be applied to a light-emitting display device to obtain an electronic display device. As an electronic display or a plasma display panel display device to which the filter for an electronic display is applied, a known display device or a commercially available product can be used without particular limitation.

Next, the filter for an electronic display according to the second to fifth inventions will be described. First, the common transmission characteristics of the electronic display filter according to the second to fifth inventions will be described.

[0233] The electronic display filter according to the second to fifth aspects of the present invention is characterized in that (a) the light transmittance Y4 (%) of the wavelength of the green light emission peak of the light emitting display device, The light transmittance Y2 (%) of the wavelength of 5 or more is lower, or (b) The luminous transmittance Y1 (%) when using the white light emission spectrum of the light emitting display device Green Light transmittance at the wavelength of the emission peak Y3 (%) Force Low transmission characteristics.

[0234] 《Optical characteristics of entire electronic display filter》

The electronic display filter targeted by the second to fifth inventions has a configuration including functions necessary for a filter, such as an external light suppressing layer, a near-infrared absorbing layer, and an electromagnetic wave shielding layer. The light transmittance Y4 (%) of the wavelength of the green emission peak of the light-emitting display device to be installed (the wavelength is often 525 nm in the case of a plasma display panel, but varies depending on the type of phosphor, etc.) is 3%. The light transmittance Y2 (%) of the wavelength of the green emission peak of the wavelength-band emission type fluorescent tube is usually 5 or more, preferably 7 or more, more preferably 10 or more, or the white emission spectrum of the light-emitting display device was used. The light transmittance Y2 (%) at the green emission peak wavelength (usually 545 nm) of the three-band fluorescent tube is usually 1 or more, preferably 3 or more, and more preferably the luminous transmittance Y1 (%). Is 5 or more lower.

[0235] Furthermore, the emission spectrum (JIS Z8719—1996) of the three-band fluorescent lamp F10 is used. The luminous transmittance Y3 ′ (%) obtained is preferably 1 or more, preferably 3 or more, more preferably 5 or more lower than the luminous transmittance Y1 (%). When the luminous transmittance Y3 '(%) is 1 or more lower, the effect of improving the light-dark contrast is more obtained.

[0236] However, in order not to significantly reduce the luminance of the light emitting display device, the luminous transmittance Y1 (%) is usually 10 or more, preferably 20 or more, and more preferably 30 or more. . The luminous transmittance is the ratio of the luminous flux φt passing through an object to the luminous flux φi incident on an object, described in JIS Z8105—1982, which is ΐ / i, which is equivalent to the brightness perception of the human visual system. This is the average value of the transmittance in the wavelength range of 380 to 780 nm, taking into account the relative spectral response (spectral luminous efficiency). And? Since the luminous transmittance is roughly correlated with the lightness indicating the relative brightness of the object, the luminous transmittance is used as an index of the brightness Z darkness of the filter.

[0237] If the luminous transmittance Y3 (%) is lower than the luminous transmittance Y1 (%) by less than 1%! ヽ, a conventionally used ND filter (neutral density filter: visible light) The filter has the same transmittance in the range, and is used for the purpose of reducing the amount of light), or the same effect as a ND filter cannot be obtained.

The filter for an electronic display according to the 2nd-5th invention can be used alone or as a laminate bonded to a transparent glass or another transparent resin plate. Also, by combining the characteristics of multiple members, such as members directly attached to the display surface of a light-emitting display device and members installed as a laminate bonded to transparent glass or another transparent resin plate, etc. — 5 inventions can be implemented.

The electronic display filter according to the second to fifth inventions can be applied to a light-emitting display device to obtain an electronic display device. As the electronic display or plasma display panel display device to which the filter for electronic display is applied, a known display device can be used without particular limitation as long as it is a commercially available product.

[0240] The specific configuration of the filter for an electronic display satisfying the above conditions will be further described.

[0241] Considering the combination of a three-band fluorescent lamp F10 as an external light source and a plasma display panel as a light-emitting display device, when the minimum transmittance of the external light suppressing layer is on the shorter wavelength side than 530 nm, Is less effective in this wavelength range because there is little outside light component. In addition, there is a green light emission peak of the plasma display panel near the wavelength of 525 nm, which interferes with the green light emission (absorbs green), which is not preferable because the effect of improving the contrast is reduced. On the other hand, if the minimum transmittance is on the long wavelength side of 610 nm, red light emission of the display panel is greatly obstructed (red light is absorbed), which is not preferable. Therefore, in this combination of the external light source and the light emitting display device, the absorption peak of the external light suppressing layer is set so that the green light emitted from the fluorescent light source F10 in the three wavelength region is well absorbed and the green light emitted from the plasma display panel is well transmitted. Will be designed.

[0242] In addition, the transmission spectrum 16 of the external light suppressing layer having the minimum value K in the wavelength range of 530 to 610 nm has a sharp valley shape so that the emission luminance of the display panel is ensured. preferable. Since the plasma display panel emits strong light near the wavelength of 595 nm, cutting the 530 to 610 nm area weakens the light emission of the plasma display panel in this wavelength range and lowers the contrast, but this 595 nm light is encapsulated in the cell. This is due to the emission of Ne gas, which is an unnecessary component. Therefore, it is preferable to design so as to cut a light emitting component in a wavelength range of 530-6 lOnm.

[0243] Specifically, a compound having a maximum absorption in a wavelength range of 530 to 610 nm, usually a diphenylsquarylium-based compound represented by the following formula (XVIII), and a compound represented by the following formula (XI) Using at least one of a tetraazaporphyrin-based compound, a ferbilazolyl-based squarylium-based compound represented by the following formula (Π) and Z or a pyromethene-based compound represented by the following formula (XIX) It is an optically functional film formed. In particular, an optical functional film formed using a diphenylsquarylium-based compound represented by the following general formula (XVIII) and Z or a tetrazaporphyrin-based compound represented by the following formula (XI) is preferable.

[0244] [Formula 44]

(XVIII)

[In the formula (XVIII), R ¹ may have a substituent! /, May have an alkyl group, may have a substituent! /, May have an alkoxy group, may have a substituent, May have an aryl group or a substituent. Indicates a aryloxy group or a halogen atom. Here, adjacent R ¹ may be taken together to form an alkanediyl group or an alkylenedioxy group. ]

In the formula (XVIII), R ² represents a hydrogen atom or a monovalent substituent, and G ¹ represents NR—

3 represents a group (here, R ³ represents a hydrogen atom or an alkyl group) or an oxygen atom, and G ² represents a carboxy group or a sulfol group (here, G ² When is a sulfol-group, R ² is not a hydrogen atom.) Om, n and p are integers of 0 or more, and m + n + p is 5 or less.

[0247] These substituents on the benzene ring may be different from each other on the other benzene ring, and when m and n are 2 or more in one benzene ring, R ^The groups represented by ¹ and G ¹ —G ² —R ² may be different from each other with other substituents in the same ring.

[0248] [Formula 45]

[In the formula (XI), R ^{1 to} R ⁸ each independently represent a hydrogen atom, a halogen atom, a nitro group, a cyano group, a hydroxy group, an amino group, or an alkyl group which may have a substituent. A cycloalkyl group which may have a substituent, an alkoxy group which may have a substituent, an aryl group which may have a substituent, an aryloxy group which may have a substituent, Having a substituent, an alkylamino group, having a substituent! /, Having a substituent, a dialkylamino group, or having a substituent, having an alkylthio group or a substituent. Represents an arylthio group, R ¹ and R ² , R ³ and R ⁴ , R ⁵ and R ⁶ , R ⁷ and R ⁸ are each connected to form a non-aromatic ring M represents two hydrogen atoms, divalent metal atoms, trivalent monosubstituted metal atoms, tetravalent disubstituted metal atoms or oxymetal atoms. . ] [0250] [Formula 46]

[In the formula (Π), R ¹ represents an alkyl group which may have a substituent or an alkoxy group which may have a substituent, and the substituent A is a hydroxyl group or W—X — R ² (W represents an imino group, X represents a carboxyl group or a sulfol group, and R ² represents a hydrogen atom, an alkyl group which may have a substituent, R ⁶ and R ⁶ may be a heterocyclic group, m may represent 0 or 1, and may have a aryl group or a substituent, and may have a aryl group or a substituent. ⁷ represents a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group, and Z represents an oxygen atom.). ]

[0252] [Formula 47]

[In the formula (XIX), R ¹ —R ⁴ and R ⁷ —R ^U each independently represent a hydrogen atom, a halogen atom, a nitro group, a cyano group, a hydroxy group, an amino group, a carboxyl group, a sulfonic acid group, An alkyl group having 1 to 20 carbon atoms, a halogenoalkyl group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, an alkyl group having 2 to 20 carbon atoms, an alkoxyalkyl group having 2 to 20 carbon atoms, C2-C20 alkoxyalkoxy, C6-C20 aryloxy, C1-C20 Alkyl group having 2 to 20 carbon atoms, alkoxyamino group having 2 to 20 carbon atoms, alkylaminocarbon group having 2 to 20 carbon atoms, dialkylaminocarbon group having 3 to 20 carbon atoms, alkyl carboxyl having 2 to 20 carbon atoms -Lumino group, C7-C20 phenol carboxyl group, C7-C20 phenylaminocarbon group, C7-C20 phenoxycarbol group, C7-C20 aralkyl group C6-20 aryl groups, C4-20 heteroaryl groups, C1-20 alkylthio groups, C6-20 fluorothio groups, C3-20 alkoxy carboxy- Alkenyl carboxy group having 4 to 20 carbon atoms, alkaryl carboxy group having 4 to 20 carbon atoms, alkaryl carboxy group having 4 to 20 carbon atoms , C2-C20 mono (hydroxyalkyl) aminocarbon A di (hydroxyalkyl) aminocarbon group having 3 to 20 carbon atoms, a mono (alkoxyalkyl) aminocarbon group having 3 to 20 carbon atoms or a di (alkoxyalkyl) aminocarbon group having 5 to 20 carbon atoms. And R ² and R ³ and Z or R ¹⁰ and R ¹¹ may be bonded to each other to form an aromatic ring fused to a pyrrole ring, or a fused aromatic ring formed by these. Can be the same or different, respectively (V):

[0254] [Formula 48]

[In the formula (ΧΙΠ), R ^{8 to} R ¹¹ have the same meanings as described above, and M represents a transition metal. ]

[0256] A film for suppressing external light using such a compound is obtained by incorporating the above compounds individually or in a mixed state into a binder resin and forming the film or sheet by a known method. Can be

Next, the electronic display filter of the second invention will be described. The electronic display filter according to the second invention is characterized in that (a) the light transmittance of the green light emission peak wavelength of the three-wavelength emission fluorescent tube is obtained from the light transmittance Y4 (%) of the light emission display device at the green light emission peak wavelength. Rate Y2 (%) is 5 or more lower, or (b) from the luminous transmittance Y1 (%) when using the white emission spectrum of the light-emitting display device, the wave of the green emission peak of the three-band emission fluorescent tube Long light transmittance Y3 (%) has transmission characteristics lower by 1 or more,

(A) An external light suppression layer that suppresses transmission of a specific wavelength component of incident light on the light-emitting display device side surface of an electronic display filter and an electromagnetic wave shield layer that suppresses electromagnetic wave radiation from the electronic display device are formed by an electromagnetic wave shield. The layer is arranged so that the layer is closer to the light emitting display device than the external light suppressing layer.

[0258] The specific configuration of the electronic display filter satisfying the above conditions will be further described. Figure 4 shows an example of the emission spectrum 14 of a plasma display panel as an example of a light-emitting display device, the emission spectrum 15 of a three-band fluorescent lamp F10 as an example of an external light source, and the transmission spectrum 16 of a filter satisfying the above conditions. FIG. 5 shows the emission spectrum 14 of the plasma display panel shown in FIG. 4 and the emission spectrum 15 of the three-wavelength band fluorescent lamp F10 after passing through a filter having a transmission spectrum 16. The spectra 14 'and 15' are shown. It can be seen that the external light is greatly reduced compared to the plasma display emission. Note that, as described above, the light that has passed through the external light suppressing layer twice is actually observed, and therefore, the emission spectrum 15 ′ of the external light in FIG. 5 shows the light transmitted through the filter twice.

[0259] In the electronic display filter having the above-described optical characteristics, the filter for the electronic display according to the present embodiment is different from the filter for the electronic display according to the present embodiment in order to exhibit the effect of improving the contrast between light and dark, which has a sufficient function of the external light suppressing layer. Instead of providing the electromagnetic wave shielding layer in the optical path until external light incident on the display device reaches the external light suppressing layer, the electromagnetic wave shielding layer has a higher reflectivity than that of the member described above, but is located closer to the light emitting display device side than the external light suppressing layer. Deploy. As a result, it is possible to suppress a decrease in contrast between light and dark due to external light reflected on the surface of the electromagnetic wave shielding layer, and thus to fully utilize the function of the external light suppressing layer.

FIG. 3 is a diagram showing an example of the arrangement of optical members in a plasma display device as an example of a display device to which the filter for an electronic display according to the present embodiment is applied. In FIG. 3, the plasma display device includes, for example, an external light introducing layer 1, a glass plate 3, and a near-infrared absorbing layer from the side where the external light source 20, which is a three-wavelength emission fluorescent lamp, is present (outermost surface). 7, an external light suppressing layer 11, an electromagnetic shield layer 4, and a plasma display panel 12. The members other than the plasma display panel 12 are bonded together by an adhesive layer (not shown) to form an electronic display filter 100. In FIG. 3, the filter 100 and the plasma display panel 12 are arranged with a predetermined space therebetween. The space may be filled with a transparent resin sheet or an adhesive layer.

[0261] The configuration of the electronic display filter 100 will be further described. The glass plate 3 is made of, for example, tempered glass, and mainly serves to improve the appearance of the display device and also functions as a base material of the filter 100.

In the embodiment of the second invention, an external light introducing layer 1 is provided on one surface of the glass plate 3. The external light introducing layer 1 is preferably a layer that transmits external light incident on the filter without reflecting or scattering the same. Specifically, the luminous transmittance according to JIS Z8105-1982 is preferably 90% or more, more preferably 95% or more.

[0263] Such an external light introducing layer 1 is formed into a film or sheet by dispersing or mixing a material having a high luminous transmittance in a transparent binder resin, or is formed as a coating film on a transparent substrate. It can be formed by various methods, for example, directly on a transparent substrate by vapor deposition or the like, or by sticking a film-like object on the substrate. However, since the thickness of the external light guiding layer is preferably about 137.5 nm, which is the 1Z4 wavelength of 550 nm at which the human eye is most sensitive, it is preferable to form such a thin film by a method capable of forming such a thin film. .

[0264] The external light introducing layer 1 needs to have a lower refractive index than the adjacent layer (here, the glass plate 3), and the difference is preferably 0.06 or more, more preferably 0.10 or more. That is all. The material and composition of the external light introducing layer are not particularly limited as long as the luminous transmittance and the above conditions are satisfied.

[0265] On the other surface of the glass plate 3, a near-infrared absorbing layer 7 is provided. The near-infrared absorbing layer 7 has a structure in which a film having a near-infrared absorbing function is attached to one or both sides of a transparent base material such as a PET sheet, and absorbs near-infrared emitted from the plasma display panel 12. Cut it.

[0266] An external light suppressing layer 11 having the above-described optical characteristics is provided on the inner surface side of the near-infrared absorbing layer 7 via an adhesive layer (not shown). The external light suppressing layer 11 is a layer of light of a specific wavelength range of the external light source 20. By absorbing the radiation, external light reaches the electromagnetic wave shielding layer 4 and the display panel 12, which will be described later, and return light due to reflection and scattering from the electromagnetic wave shielding layer 4 and the display panel 12 goes out of the display device. It suppresses both returning and suppresses the contrast of light and dark by external light.

[0267] The external light suppressing layer 11 has a configuration in which, for example, an external light suppressing functional film having the above-described transmission characteristics is attached on a transparent sheet made of PET. Further, the external light suppressing layer 11 contains the above-described compound having the maximum absorption in the wavelength range of 530-6 lOnm.

[0268] The external light suppressing layer 11 is further provided with an electromagnetic wave shielding layer 4 via an adhesive layer (not shown). The electromagnetic wave shielding layer 4 is formed, for example, by providing a metal thin film on a base material such as a PET sheet, and patterning the metal thin film by a method such as chemical etching to form a conductive mesh or on a base material. The conductive thin film is formed by sputtering or the like, and is connected to a ground (not shown) to shield electromagnetic waves emitted from the plasma display panel 12. When the electromagnetic wave shielding layer is formed of a mesh-shaped conductive material, unevenness caused by a portion where the conductive material exists and a portion where the conductive material does not exist is covered with a UV-curable resin or the like to smooth the surface. Is also good. In this case, it is preferable that the difference in the refractive index between the base material of the electromagnetic wave shielding layer 4 and the smoothing material is small. In addition, the surface of the conductive mesh may be blackened by a known method to further suppress the reflection by the mesh. Note that a color tone correction layer other than that shown in FIG. 3 may be included in the filter 100 for an electronic display.

[0269] The respective layers are bonded together by making the pressure-sensitive adhesive layer transparent by a heat treatment under pressure to form a filter 100. As shown in FIG. 6, the filter 100 and the display panel 12 may be bonded together via the adhesive layer 13).

[0270] In Fig. 3, the near-infrared absorbing layer 7, the external light suppressing layer 11, and the electromagnetic wave shielding layer 4 are configured in this order, but the order of the electromagnetic wave shielding layer 4 and the external light suppressing layer 11 is maintained. For example, the arrangement of layers other than the external light introducing layer 1 is arbitrary.

[0271] By using such a configuration, reflection and scattering of external light by the electromagnetic wave shielding layer in the optical path to the external light suppressing layer in the external light source force are suppressed, so that the contrast of light and dark caused by external light is reduced. Can be suppressed. In addition, outside that has been reflected and scattered by the electromagnetic wave shielding layer in the past Since the light reaches the external light suppressing layer 11, the function of the external light suppressing layer can be used efficiently, and the contrast can be further improved. In addition, since the return light of the external light reflected and scattered inside the display device is reduced, the coloring of the filter when not in use is further hardly observed.

Next, the electronic display filter of the third invention will be described. The electronic display filter according to the third aspect of the present invention is characterized in that (a) the light transmittance of the green emission peak wavelength of the three-wavelength emission fluorescent tube is obtained from the light transmittance Y4 (%) of the green emission peak wavelength of the light emitting display device. Rate Y2 (%) is 5 or more lower, or (b) from the luminous transmittance Y1 (%) when using the white emission spectrum of the light-emitting display device, the wave of the green emission peak of the three-band emission fluorescent tube Long light transmittance Y3 (%) has transmission characteristics lower by 1 or more,

(B) An external light introducing layer having a luminous transmittance of 90% or more is disposed on the outermost surface of the filter for an electronic display.

[0273] A specific configuration of an electronic display filter satisfying the above conditions will be described below. Figure 8 shows the emission spectrum 14 of a plasma display panel as an example of a light-emitting display device, the emission spectrum 15 of a three-band fluorescent lamp F10 as an example of an external light source, and suppression of external light that meets the above conditions. FIG. 9 is a diagram showing an example of a transmission spectrum 16 of the layer. FIG. 9 shows an emission spectrum 14 of the plasma display panel shown in FIG. 8 and an emission spectrum 15 of the three-band fluorescent lamp F10 having a transmission spectrum 16. The emission spectra 14 ′ and 15 ′ after transmission through the external light suppression layer are shown. It can be seen that the external light is greatly reduced compared to the plasma display emission. However, as described above, since the external light that has passed through the external light suppressing layer twice is actually observed, the emission spectrum 15 ′ of the external light in FIG. It shows what has been transmitted.

In the electronic display filter of the present invention having the overall characteristics as described above, the effect of improving the contrast between light and dark by sufficiently utilizing the function of the external light suppressing layer and the suppression of coloring of the filter when not in use are provided. An embodiment for satisfying both will be described below.

[0275] As an embodiment for transmitting as much external light as possible to the filter for electronic display to the external light suppressing layer, a configuration in which an external light guiding layer is provided as the outermost layer of the filter for electronic display will be described. I do. [0276] <Configuration of External Light Introducing Layer>

As a layer (external light introduction layer) for guiding the incident external light to the external light suppressing layer as much as possible, which is used in the filter for an electronic display according to the embodiment of the third invention, the incident external light is used. The layer is preferably a layer that transmits light without being reflected or scattered. Specifically, the external light introducing layer according to the present embodiment has a luminous transmittance according to JIS Z8105-1982 of usually 90% or more, preferably 95% or more.

[0277] Such an external light introducing layer is formed, for example, by dispersing or mixing a material having a high luminous transmittance in a transparent binder resin to form a film or sheet, or by forming a coating on a transparent substrate. It can be formed by various methods such as, for example, by directly providing on a transparent substrate by vapor deposition, or by attaching a film-like object on the substrate. However, since the thickness of the external light guiding layer is preferably about 137.5 nm, which is the 1Z4 wavelength of 550 nm at which the human eye is most sensitive, it is preferable to form such a thin film by a method capable of forming such a thin film. .

[0278] Since it is desirable to introduce external light entering the filter as much as possible inside, it is necessary to provide an external light guiding layer on the outermost surface of the filter. Further, the external light introducing layer needs to have a lower refractive index than the adjacent layer (including the substrate of the external light introducing layer), and the difference is preferably at least 0.06, more preferably at least 0.10. is there. The material and composition of the external light introducing layer are not particularly limited as long as the luminous transmittance and the above-mentioned conditions are satisfied.

FIG. 7 is a diagram showing an example of the arrangement of optical members in a plasma display device as an example of a display device to which the filter for an electronic display according to the present embodiment is applied.

In FIG. 7, for example, the plasma display device is arranged such that the external light introducing layer 1, the glass plate 3, and the external light source 20, such as a three-wavelength band fluorescent lamp, are located from the side (outermost surface side). It has an electromagnetic shield layer 4, a near-infrared absorbing layer 7, an external light suppressing layer 11, and a plasma display panel 12. The members other than the plasma display panel 12 are adhered by an adhesive layer, not shown, to constitute an electronic display filter 100. In FIG. 7, the filter 100 and the plasma display panel 12 are arranged in a predetermined space!

[0281] The configuration of the electronic display filter 100 will be further described. The glass plate 3 is made of, for example, tempered glass, and mainly adjusts the appearance of the display device, and also includes a filter 100. Also functions as a base material. The electromagnetic wave shielding layer 4 is, for example, a metal thin film provided on a base material such as a PET sheet and a conductive mesh formed by etching the metal thin film, or a conductive thin film formed on the base material by sputtering or the like. It is connected to a ground (not shown) and shields electromagnetic waves emitted from the plasma display panel 12.

[0282] The electromagnetic wave shielding layer 4 is provided with a near-infrared absorbing layer 7 via an adhesive layer (not shown). The near-infrared absorbing layer 7 has a structure in which a film having a near-infrared absorbing function is attached to one or both sides of a transparent base material such as a PET sheet, and cuts near infrared emitted from the plasma display panel 12. I do. The external light suppressing layer 11 has the above-described transmission characteristics, and absorbs light of a specific wavelength range of the external light source 20 so that the external light reaches the display panel 12 and the arrived light is transmitted to the display device. It suppresses both returning to the outside and suppresses the contrast of light and dark contrast caused by external light. The external light suppressing layer 11, like the near infrared absorbing layer 7, has a configuration in which an external light suppressing functional film having the above-described transmission characteristics is attached to a transparent sheet made of PET, for example. Further, the external light suppressing layer 11 contains the above-described compound having the maximum absorption in the wavelength range of 530 nm to 610 nm. Note that a color tone correction layer other than that shown in FIG. 7 may be included in the electronic display filter 100.

[0283] As described above, according to the configuration of the present embodiment, by providing an external light introduction layer having a luminous transmittance of 90% or more on the outermost surface of the filter for an electronic display, external light incident on the display device is provided. Of these, the ratio of reaching the external light suppression layer increases, and even if the external light suppression layer is provided at a position apart from the outermost surface of the filter, its performance can be fully utilized and the contrast between light and dark is improved. I do. Further, since a sufficient contrast between light and dark can be obtained without increasing the amount of the dye used in the external light suppressing layer, the coloring of the filter when it is not used is hard to be observed. Furthermore, when there is no external light suppressing layer, external light reflected on the outermost surface of the electronic display filter (the surface of the glass 3 in the configuration of FIG. 7) is hardly reflected, so that the contrast is further improved. It becomes possible.

Next, the electronic display filter of the fourth invention will be described. The filter for an electronic display according to the fourth invention comprises: (a) light having a wavelength of a green emission peak of the light emitting display device; Light transmittance Υ2 (%) at the wavelength of the green emission peak of the three-band fluorescent tube is 5 or more lower than the linear transmittance Y4 (%), or (b) The white emission spectrum of the light-emitting display device was used. The light transmittance Y3 (%) of the wavelength of the green emission peak of the three-band fluorescent tube has a transmission characteristic lower by 1 or more than the luminous transmittance Y1 (%) of the case,

(C) The filter for an electronic display is composed of a transparent base material having a haze value of 1.5% or less.

[0285] The specific configuration of the electronic display filter satisfying the above conditions will be further described. Figure 8 shows the emission spectrum 14 of a plasma display panel as an example of a light-emitting display device, the emission spectrum 15 of a three-band fluorescent lamp F10 as an example of an external light source, and the transmission spectrum of an external light suppression layer satisfying the above conditions. FIG. 9 is a diagram showing an example of the light emission spectrum of the plasma display panel shown in FIG. 8, and FIG. 9 is a diagram showing the external light suppression having the light emission spectrum 15 and the transmission spectrum 16 of the three-band fluorescent lamp F10. Emission spectra 14 ′ and 15 ′ after transmission through the layer are shown. It can be seen that the external light is greatly reduced as compared with the plasma display emission. However, since external light that actually passed through the external light suppression layer twice was actually observed as described above, the external light emission portal 15 ′ in FIG. Show what has been transmitted once.

[0286] In the filter for an electronic display of the present invention having the overall characteristics as described above, the effect of improving the contrast between light and dark, which fully utilizes the function of the external light suppressing layer, and the suppression of coloring of the filter when not in use. An embodiment for satisfying both will be described below.

[0287] The embodiment of the fourth invention uses a member having specific optical characteristics for a functional layer or a base material constituting a filter for an electronic display, and in particular, by using a member having specific optical characteristics for the base material, thereby reducing the light scattered inside the filter. The purpose of this method is to suppress the decrease in the contrast of light and dark, and to make full use of the function of the external light suppressing layer.

[0288] Fig. 7 is a diagram showing an example of the arrangement of optical members in a plasma display device as an example of a display device to which the filter for an electronic display according to the present embodiment is applied.

In FIG. 7, for example, the plasma display device is arranged such that the external light introduction layer 1, the glass plate 3, the external light source 20, such as a three-wavelength band fluorescent lamp, are located from the side where the external light source 20 exists (the outermost surface side). It has an electromagnetic shield layer 4, near-infrared absorption layer 7, outside light suppression layer 11, and plasma display panel 12. To do. The members other than the plasma display panel 12 are adhered by an adhesive layer, not shown, to constitute an electronic display filter 100. In FIG. 7, the filter 100 and the plasma display panel 12 are arranged in a predetermined space!

[0290] The configuration of the electronic display filter 100 will be further described. The glass plate 3 is made of, for example, tempered glass, and mainly serves to improve the appearance of the display device and also functions as a base material of the filter 100. The electromagnetic wave shielding layer 4 is, for example, a metal thin film provided on a base material such as a PET sheet and a conductive mesh formed by etching the metal thin film, or a conductive thin film formed on the base material by sputtering or the like. It is connected to a ground (not shown) and shields electromagnetic waves emitted from the plasma display panel 12.

[0291] The electromagnetic wave shielding layer 4 is provided with a near-infrared absorbing layer 7 via an adhesive layer (not shown). The near-infrared absorbing layer 7 has a structure in which a film having a near-infrared absorbing function is attached to one or both sides of a transparent base material such as a PET sheet, and cuts near infrared emitted from the plasma display panel 12. I do. The external light suppressing layer 11 has the above-described transmission characteristics, and absorbs light of a specific wavelength range of the external light source 20 so that the external light reaches the display panel 12 and the arrived light is transmitted to the display device. It suppresses both returning to the outside and suppresses the contrast of light and dark contrast caused by external light. The external light suppressing layer 11, like the near infrared absorbing layer 7, has a configuration in which an external light suppressing functional film having the above-described transmission characteristics is attached to a transparent sheet made of PET, for example. Further, the external light suppressing layer 11 contains the above-described compound having the maximum absorption in the wavelength range of 530 to 610 nm. Note that a color tone correction layer or the like other than that shown in FIG. 7 may be included in the electronic display filter 100.

[0292] In the embodiment of the fourth invention, among the layers constituting the filter for an electronic display, at least one of the layers existing in the optical path from the external light source to the external light suppressing layer has a haze value according to JIS K7105. It is usually at most 1.5%, preferably at most 1.0%, more preferably at most 0.5%. The haze value is an index indicating the degree of haze, and the higher the haze value, the more the light is scattered.

[0293] In the present embodiment, a layer (substrate, It is desirable that all the adhesive layers, optical functional films, etc. have the above haze value.For example, in the configuration shown in FIG. 7, the conductive thin film in the electromagnetic wave shielding layer 4 and the functional thin film such as the external light introducing layer 1 It is preferable that at least one, and preferably all of the substrates of the glass plate 3, the electromagnetic wave shielding layer 4, the near-infrared absorbing layer 7, and the external light suppressing layer 11 have the above-mentioned haze value.

[0294] By using such a base material, the scattering of external light in the optical path to the external light source and the external light suppressing layer is suppressed, so that a decrease in contrast between light and dark due to the scattering of external light can be suppressed. In addition, suppression of scattering leads to a high percentage of external light incident on the display device to the external light suppressing layer, so that when an external light suppressing layer is used, its function becomes more effective. It can be used, and the contrast of light and dark can be further improved. In addition, a sufficient contrast of light and dark can be obtained without increasing the amount of the dye used in the external light suppressing layer, so that coloring of the filter when not used is observed.

Next, the electronic display filter of the fifth invention will be described. The filter for an electronic display according to the fifth aspect of the present invention is characterized in that (a) the light transmittance at the wavelength of the green emission peak of the three-band fluorescent lamp is obtained from the light transmittance Y4 (%) of the wavelength of the green emission peak of the light emitting display device. Rate Y2 (%) is 5 or more lower, or (b) from the luminous transmittance Y1 (%) when using the white emission spectrum of the light-emitting display device, the wave of the green emission peak of the three-band emission fluorescent tube Long light transmittance Y3 (%) has transmission characteristics lower by 1 or more,

(D) An electromagnetic wave shielding layer having a visible light transmittance of 60 to 80% is disposed on the surface of the filter for electronic display on the light emitting display device side.

[0296] The specific configuration of the electronic display filter satisfying the above conditions will be further described. Figure 8 shows the emission spectrum 14 of a plasma display panel as an example of a light-emitting display device, the emission spectrum 15 of a three-band fluorescent lamp F10 as an example of an external light source, and the transmission spectrum of an external light suppression layer satisfying the above conditions. FIG. 9 is a diagram showing an example of the light emission spectrum of the plasma display panel shown in FIG. 8, and FIG. 9 is a diagram showing the external light suppression having the light emission spectrum 15 and the transmission spectrum 16 of the three-band fluorescent lamp F10. Emission spectra 14 ′ and 15 ′ after transmission through the layer are shown. It can be seen that the external light is greatly reduced as compared with the plasma display emission. However, for external light, as described above, Since the light that has passed through the control layer twice is actually observed, the emission light source 15 ′ of the external light in FIG. 9 shows the light transmitted through the external light suppression layer twice.

[0297] In the filter for an electronic display of the present invention having the overall characteristics as described above, the effect of enhancing the contrast between light and dark by sufficiently utilizing the function of the external light suppressing layer, and the suppression of coloring of the filter when not in use. An embodiment for satisfying both will be described below.

[0299] In Fig. 7, the plasma display device is configured such that the external light introducing layer 1, the glass plate 3, and the external light source 20, such as a three-wavelength band fluorescent lamp, are located from the side (outermost surface side). It has an electromagnetic shield layer 4, a near-infrared absorbing layer 7, an external light suppressing layer 11, and a plasma display panel 12. The members except for the plasma display panel 12 are adhered by an adhesive layer, not shown, to constitute an electronic display filter 100. In the figure, the filter 100 and the plasma display panel 12 are arranged at a predetermined space!

[0300] The external light introducing layer 1 is a layer that guides as much external light as possible to the external light suppressing layer, and is preferably a layer that transmits the external light without reflecting and scattering it. Specifically, the luminous transmittance of the external light introducing layer 1 according to JIS Z8105-1982 is usually 90% or more, preferably 95% or more.

[0301] Such an external light introducing layer is formed, for example, into a film or sheet by dispersing or mixing a material having high luminous transmittance in a transparent binder resin or as a coating film on a transparent substrate. It can be formed by various methods, for example, directly on a transparent substrate by vapor deposition, or by sticking a film-like material on the substrate. However, the thickness of the external light introduction layer is preferably about 137.5 nm ± l Onm, which is the 1Z4 wavelength of 550 nm, which is most sensitive to the human eye, so it is formed by a method that can produce such a thin film. Is preferred. Polyethylene terephthalate (PET) film / triacetylcellulose (TAC) film is generally used as the transparent substrate used for the external light introducing layer. Particularly, the TAC film is suitable because it can introduce a large amount of external light. .

[0302] The configuration of the electronic display filter 100 will be further described. The glass plate 3 also becomes tempered glass, for example, to mainly improve the appearance of the display device, Also functions as a substrate. The electromagnetic wave shielding layer 4 is formed, for example, by forming a metal thin film on a base material such as a PET sheet and forming a conductive mesh by etching the metal thin film, or by forming a conductive mesh on the base material by sputtering or the like. It is formed with a thin film and is connected to a ground (not shown) to shield electromagnetic waves emitted from the plasma display panel 12.

[0303] The electromagnetic wave shielding layer 4 is provided with a near-infrared absorbing layer 7 via an adhesive layer (not shown). The near-infrared absorbing layer 7 has a structure in which a film having a near-infrared absorbing function is attached to one or both sides of a transparent base material such as a PET sheet, and cuts near infrared rays emitted from the plasma display panel 12. . The external light suppressing layer 11 has the above-described transmission characteristics, and absorbs light in a specific wavelength range of the external light source 20 so that the external light reaches the display panel 12 and the arrived light is transmitted to the outside of the display device. And the contrast of light and dark contrast due to external light is suppressed. Like the near-infrared ray absorbing layer 7, the external light suppressing layer 11 has a configuration in which, for example, an external light suppressing functional film having the above-described transmission characteristics is adhered to a transparent sheet made of PET. Further, the external light suppressing layer 11 contains the aforementioned compound having the maximum absorption in the wavelength range of 530 nm to 610 nm. Note that a color tone correction layer other than that shown in FIG. 7 may be included in the electronic display filter 100.

[0304] As shown in Fig. 7, an electromagnetic wave shielding layer 4 is generally provided in a filter 100 used for a display device using a light emitting display device that generates electromagnetic waves such as a plasma display panel. . In the present embodiment, when the electronic display filter having the external light suppression layer has an electromagnetic wave shielding layer, by using a layer satisfying specific conditions for the electromagnetic wave shielding layer, the coloring of the filter is hardly observed, and Further, the contrast of light and dark is improved.

That is, if the visible light transmittance of the electromagnetic wave shielding layer 4 is controlled and the amount of external light reaching the light emitting display device is suppressed, it is attributed to the return light of the external light reflected by the display light emitting device. A decrease in brightness and contrast can be suppressed.

[0306] The electromagnetic wave shielding layer 4 in the fifth embodiment of the present invention has a structure in which a mesh made of conductive fibers is provided on a transparent base material, and a conductive thin film formed on the base material is used. " And a thin film of a conductive material (having no opening) formed by vapor deposition or sputtering on a substrate.

According to the present embodiment, the visible light (wavelength 400 to 700 nm) transmittance of the electromagnetic wave shielding layer 4 is usually 60 to 80%, preferably 60 to 75%, more preferably 60 to 70%. It is.

[0308] Such a visible light transmittance is determined when the electromagnetic wave shielding layer 4 is made of a mesh-shaped conductive material (a conductive thin film formed by meshing or etching a conductive fiber or the like). It can be realized by controlling the transmittance of the transparent substrate forming the layer and the aperture ratio thereof. Here, the aperture ratio is a ratio of a region (opening) capable of transmitting light per unit area (in other words, a ratio of a mesh occupied per unit area minus 100).

[0309] A PET film is generally used as a transparent base material for forming a mesh, and its visible light transmittance is about 90%. Therefore, the aperture ratio is usually 65 to 90%, preferably 65 to 85%. The above-mentioned visible light transmittance can be realized by setting the ratio to more preferably 65 to 80%. Of course, the actual aperture ratio may be determined based on the measurement result of the visible light transmittance. The visible light transmittance of the electromagnetic wave shield layer can be obtained as a value obtained by multiplying the visible light transmittance of the transparent base by the aperture ratio of the electromagnetic wave shield mesh.

[0310] The aperture ratio of the electromagnetic wave shielding mesh can be appropriately controlled according to the material and manufacturing method of the mesh. For example, in the case of manufacturing a mesh using a metal wire, the interval (line pitch) of the wire and the wire pitch may be reduced. This can be achieved by controlling the diameter of the wire, or by controlling the region to be etched when the mesh is formed by etching a metal thin film.

[0311] On the other hand, when the electromagnetic wave shielding layer 4 is formed using a conductive thin film that is not mesh-shaped (having no openings), it is necessary to control the material and thickness of the conductive thin film provided on the base material. Thereby, the above-mentioned visible light transmittance can be realized. In this case, the electromagnetic wave shielding layer may be formed of a plurality of conductive thin film layers, and the thickness and material can be independently selected for each of the plurality of conductive thin film layers.

[0312] According to the fifth embodiment of the present invention, it is possible to improve the light / dark contrast by suppressing external light reaching the light emitting display device by the electromagnetic wave shield layer. In addition, since the amount of visible light transmitted through the external light suppressing layer is suppressed, at the same time, the flow when not in use is suppressed. Filtering can be suppressed.

Next, the transparent substrate of the electronic display filter of the sixth invention will be described. The transparent substrate of the electronic display filter according to the sixth invention has a frame-shaped opaque region on the outer peripheral portion of the surface of the transparent substrate, and the surface roughness of the opaque region has an arithmetic average height (Ra) of 0.05. 100 / zm.

[0314] Hereinafter, a case will be described in which the transparent substrate of the filter for an electronic display according to the sixth invention is applied to an optical filter used for a plasma display, but the transparent substrate according to the sixth invention is a display device of another type. It can be similarly applied to optical filters for use.

Further, the transparent substrate of the filter for an electronic display according to the sixth invention can be used as a filter for an electronic display by forming a laminate by bonding the transparent substrate to the filter of the fifteenth invention. Then, the obtained filter for an electronic display can be applied to a light-emitting display device to obtain an electronic display device. As an electronic display or a plasma display panel display device to which the filter for an electronic display is applied, a known display device or a commercially available product can be used without particular limitation.

[0316] <Configuration of optical filter>

In the sixth invention, the optical filter for a display device is arranged at a position where light emitted from a display element (display panel, cathode ray tube, etc.) passes before exiting to the outside of the display device, and undergoes some change with respect to the incident light. Means a filter that has the function of positively providing The optical filter specifically has a function of suppressing external light as described above, a function of improving contrast, a color correction, an anti-reflection (AR), an anti-reflection (AG), and the like.

[0317] Optical filters are usually formed by blending a functional material into a transparent substrate itself, typically glass or optical resin, or by applying a material having an optical function to a transparent substrate, A structure formed by attaching a functional film or a combination thereof is known.

[0318] The filter of the sixth invention is an optical filter having a configuration in which at least one film is attached to at least one surface of a transparent substrate, but the substrate itself may be provided with some optical function. . Further, a plurality of films may be laminated on a transparent substrate. Ma In addition to the film having an optical function, there may be a layer having no particular optical function, such as a metal mesh for suppressing electromagnetic waves or a base film thereof. Further, a layer formed by coating may be present.

[0319] Ku transparent substrate>

In the sixth invention, the material and shape of the transparent substrate are not limited as long as the transparent substrate has strength and optical characteristics that can function as a substrate of the optical filter. For example, transparent resins used for glass and optical applications (polyethylene terephthalate (PET), polycarbonate (PC), cyclic polyolefin resin (COP), triacetyl cellulose (TAC), polyethylene naphthalate (PEN), etc.) The formed substrate can be used. As described above, it is also possible to add a functional material that gives the substrate itself an optical function.

[0320] <Frame printing>

In the sixth invention, there are no particular restrictions on the materials and techniques used for frame printing on a transparent substrate, and any material capable of printing a frame such as achromatic color on glass or a transparent resin having a smooth surface without any particular limitations. , Techniques can be used. For example, for a glass substrate, black ceramic ink is screen-printed, then heat-treated and baked.- For a resin substrate, screen printing of pigment ink containing inorganic particles etc. can be used respectively. It is. The frame printing color is often printed in black or a color close to black, but the frame printing color itself is irrelevant to the present invention, and any other color can be used. For example, sand blasting may be used to implement a white glass-like frame. However, it is preferable that the opacity of the film attached to the frame printing portion is so low that the edge of the film is hardly observed.

[0321] <Surface roughness of printed frame part>

The sixth invention is characterized in that the surface roughness of at least a region of the frame printing portion where the film is attached is controlled. That is, in FIG. 10, assuming that the frame printing portion is 51 and the film to be pasted is 55, at least the surface roughness in the area 53 where the film 55 and the frame printing portion 51 overlap is controlled. However, when performing frame printing by ceramic printing on a glass substrate, it is difficult to partially adjust the roughness. If 55 does not overlap, it is good to control the surface roughness including the area!

[0322] As a method of controlling the surface roughness, any method can be adopted. However, it is possible to control the particle size and shape of a substance contained in a paint (including a ceramic paste) and remaining after printing, or to control after printing. The desired surface roughness can be achieved by roughening the surface of the frame printing portion by sandblasting or the like.

[0323] As the specific surface roughness, the arithmetic average height Ra (jIS B0601-2001.

(Synonymous with JIS B601-1994)) and 0.05 m or more, preferably 0.10 m or more. The upper limit is preferably 100 m or less. When the surface roughness is less than 0.05 m, it is difficult to obtain sufficient adhesive strength, and the partial force at corners is also easily peeled off.

[0324] The surface roughness may be isotropic or anisotropic. In the case of having anisotropy, at least one of the direction parallel to the long side of the substrate and the direction perpendicular to the long side is as described above. It is preferable to satisfy the conditions. When a transparent substrate with an unequal aspect ratio is used, as shown in Fig. 10, for example, the surface roughness in the direction parallel to the longitudinal direction is taken into account in consideration of the magnitude of tension fluctuation applied to the film due to expansion. By making the surface roughness larger than the surface roughness in the direction perpendicular to the direction, it is possible to further prevent the film from peeling.

[0325] <Paste film>

The film is attached using an adhesive. As the pressure-sensitive adhesive, a pressure-sensitive adhesive excellent in optical properties (for example, having high transparency) and having little change in pressure-sensitive adhesiveness under a high-temperature and high-humidity environment and hardly undergoing aging is preferable.

[0326] A film to which this adhesive has been applied is prepared in advance, and it is possible to perform bonding by positioning and cutting on a transparent substrate. If the width d (FIG. 11) of the region 53 (FIG. 10) where the overlaps are too small, the effect of controlling the surface roughness of the frame printing portion cannot be obtained. If it is too large, the consumption of the film and the adhesive will be unnecessarily increased. Since the adhesive strength of the film depends not only on the width d but also on the performance of the pressure-sensitive adhesive, it cannot always be determined unambiguously. On the other hand, the necessity for a width exceeding 20 mm was seen, but it was not issued.

<Configuration of Optically Functional Film> Examples of the optical functional film suitably used for the optical filter in the sixth invention include an infrared absorption (cut) film and a film for suppressing external light. In particular, the film for suppressing external light is useful for improving the contrast during display and adjusting the screen color when the power is off. The external light suppressing film means a film having a function of absorbing (cutting) external light of a specific wavelength or a wavelength band. As such an external light suppressing film, for example, a film formed using the above-mentioned compound can be suitably used.

Specifically, a compound having a maximum absorption in the wavelength range of 530-6 lOnm, and this compound is usually a difluorsquarylium-based compound represented by the above formula (XVII), At least one of a tetraazaporphyrin compound represented by the formula (XI), a fluvirazolyl squarylium compound represented by the above formula (Π), and a pyromethene compound represented by the above formula (XVIII) Optically functional film formed using two compounds, preferably a difluorsquarylium compound represented by the above formula (XVII) and a tetraazaporphyrin compound represented by Z or the above formula (XI) An optical functional film formed using

[0329] <Specific configuration example>

FIG. 7 is a diagram showing an arrangement example of optical members of a plasma display device as an example of a display device to which the filter for an electronic display according to the present embodiment can be applied.

[0330] In Fig. 7, for example, the plasma display device is arranged such that the external light introducing layer 1, the glass plate 3, the external light source 20 such as a three-wavelength-band fluorescent tube, etc. It has an electromagnetic wave shield layer 4, a near-infrared cut layer 7, an external light suppression layer 11, and a plasma display panel 12. The members other than the plasma display panel 12 are adhered by an adhesive layer, not shown, to constitute an electronic display filter 100. In FIG. 7, the filter 100 and the plasma display panel 12 are arranged in a predetermined space!

[0331] The configuration of the electronic display filter 100 will be further described. The glass plate 3 is made of, for example, tempered glass, and mainly serves to improve the appearance of the display device and also functions as a base material of the filter 100. The electromagnetic wave shielding layer 4 is formed, for example, by providing a metal thin film on a base material such as a PET sheet and etching the metal thin film. Or a conductive thin film formed on a substrate by sputtering or the like.

, Which is connected to a ground (not shown) to shield electromagnetic waves emitted from the plasma display panel 12.

[0332] The electromagnetic wave shielding layer 4 is provided with a near-infrared cut layer 7 via an adhesive layer (not shown). The near-infrared cut layer 7 has a configuration in which a thin film having a near-infrared cut function is provided on one or both sides of a transparent base material such as a PET sheet, and cuts near infrared rays emitted from the plasma display panel 12. . The external light suppressing layer 11 has the above-described transmission characteristics, and absorbs light of a specific wavelength range of the external light source 20 so that external light reaches the display panel 12 and the arrived light is It suppresses both returning to the outside of the device, and suppresses the contrast of light and dark by the external light. Like the near-infrared cut layer 7, the external light suppressing layer 11 has a configuration in which an external light suppressing functional film having the above-described transmission characteristics is attached to a transparent sheet made of, for example, PET. Further, the external light suppressing layer 11 contains the above-described compound having the maximum absorption in the wavelength range of 530 to 610 nm. Note that a color tone correction layer other than that shown in FIG. 7 may be included in the electronic display filter 100.

[0333] In FIG. 11, in the configuration shown in FIG. 7, the state of adhesion between the glass plate 3 as the transparent substrate and the electromagnetic wave shielding layer 4 as the film to be attached to the glass plate 3, particularly in the vicinity of the edge of the film The bonding state is schematically shown in an enlarged manner. For convenience, the metal mesh provided on the base film of the electromagnetic wave shielding layer 4 is shown in FIG.

In FIG. 11, the electromagnetic wave shielding layer 4 is attached to the surface of the glass plate 3 via the adhesive layer 56, and the end is adhered to the frame printing portion 51. As described above, it is preferable that the width d of the portion of the film end portion (outer peripheral portion) overlapping the frame printing portion 51 is 3 mm or more and 20 mm or less.

Example

[0335] Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited to the following Examples as long as the gist is not exceeded.

[0336] The following examples are for explanation of the first invention.

Synthesis Example 1 (Synthesis of Compound of Formula I2):

3, 4-dihydroxy-3-cyclobutene 1, 2-dione; starting from thiol chloride 1,2-Dichlorocyclobutene-3,4-dione was synthesized by the method of Tetrahedron Letters, 781 (1970). Next, using 1, 2, -dichlorocyclobutene 3,4-dione (A), the following method described in Dyesand Pigments 49, 161 (2001) is used to prepare 2-chloro-1- (4-methoxyphenol). Cyclobutene 3,4-dione (EI-MS; m / z222 (M +), 1H-NMR (400 MHz, inCDC13δ, ppm); 3.93 (s, 3H), 7.08 (d, 2H), 8.25 (d, 2H) Via 2-Hydroxy-1- (4-methoxyphenyl) cyclobutene 3,4-dione [1H-NMR (400MHz, inCDC13δ, ppm); 3.90 (s, 3H), 7.04 (d, 2H ), 8.11 (d, 2H)].

[0338] [Formula 49]

Further, 0.10 g (0.49 mmol) of 2-hydroxy-1- (4-methoxyphenyl) cyclobutene 3,4-dione and n-decanoic acid (3,5-dihydroxy-phenyl) -amide were used. 14 g (0.49 mmol), 20 ml of toluene and 20 ml of n-butanol were charged into a reaction vessel equipped with a Gene Stark apparatus, and heated under reflux for 4 hours.

[0340] After the reaction was completed, the reaction mixture was allowed to cool, the precipitate was filtered, washed with toluene Z hexane, and dried to obtain 0.15 g of the desired compound (Formula 1-2) (yield 65.8%). ).

[Visible absorption λ max: 552nm (tetrahydrofuran), mass spectrum MALDI— TOF

MS (neg, no marix) method: m / z = 465

(M—)]

Synthesis Example 2 (Synthesis of Formula I4):

2-hydroxy-1- (4-methoxyphenyl) cyclobutene 3,4-dione 0.10 g (0.49 mmol), 1,3,5-trihydroxybenzene 0.063 g (0.50 mmol), toluene 20 ml and n- 20 ml of butanol was charged into a reaction vessel equipped with a Gene Stark apparatus, and heated under reflux for 4 hours.

[0342] After completion of the reaction, the reaction mixture was allowed to cool, the precipitate was filtered, washed with toluene Z hexane, and dried to obtain 0.12 g of the desired compound (I4) (yield 85.0%). Was. [Visible absorption λ max: 532nm (tetrahydrofuran), mass spectrum MALDI— TOF

M¾ (negative ion mode, matrix: -shiriCA) method:

m / z = 311 (M-H)]

Synthesis Example 3 (Synthesis of Formula ΠΙ—3):

Mixed solvent of 0.30 g of 2,1-nonenoic acid (3,5-dihydroxyphenylamide) and 0.065 g of 3,4-dihydroxy-3-cyclobutene 1,2-dione in 20 ml of toluene and 20 ml of n-butanol At the same time, the mixture was charged into a reaction vessel equipped with a Gene Stark apparatus, and heated and refluxed for 4 hours to cause a reaction. After completion of the reaction, the reaction mixture was allowed to cool, and the precipitate was filtered, washed with toluene, and dried to obtain 0.21 g of the desired compound (III 3) (yield: 60.9%).

[Visible absorption λ max: 609 nm (tetrahydrofuran), mass spectrum DEI-MS (pos) method: m / z = 605 (M + H)]

Synthesis Example 4 (Synthesis of Formula: II 5):

0.251 g of 2, -ethylhexanoic acid (3,5-dihydroxyphenolamide) and 0.14 g of 1-methyl-3-n-propyl-2-pyrazolin-5one 0.14 g and 3,4-dihydroxy-3-cyclobutene 1,2-dione 0. 114 g and a mixed solvent of 20 ml of toluene and 20 ml of n-butanol were charged into a reaction vessel equipped with a GeneStark apparatus, and reacted by heating under reflux for 4 hours. After completion of the reaction, the reaction mixture was allowed to cool, and the precipitate was filtered, washed with toluene, and dried to obtain 0.25 g of a reaction product.

[0345] 1H-NMR [500 MHz, d8-THF, δ (ppm), 25. C], 1,3-bis (5-hydroxy-1-methyl-3-propyl 1H-pyrazol-4-yl) cyclobutenediiridium-2,4-diolate and 1,3-bis (2- (2-ethyl) It was a 18:29:53 mixture of xanoyl) amino-4,6-dihydroxy-phenyl) cyclobutenediiridium-2,4-diolate and a compound of formula (II-5). In addition, 1,3 bis (5-hydroxy-1-methyl-3-propyl 1H virazol-4-yl) cyclobutenedidium-2,4-diolate and 1,3 bis (2- (2-ethylhexanoyl) Amino-4,6-dihydroxy-phenyl) cyclobutenediiridium-2,4-diolate was prepared in Example 2 of Japanese Patent Application No. 2000-149260 and Example 2 of Japanese Patent Application No. 2000-2 66415, respectively. Mass, NMR and IR were in agreement with the indicated product.

[Visible absorption: max: 549 nm (tetrahydrofuran); Mass spectrum: DEI-MS (pos) method: m / z = 469 (M + H);

1H-NMR [500MHz, d8—THF, δ (ppm), 25 ° C]:

10.32 (lH, s), 7.96 (lH, d), 5.94 (lH, d), 3.57 (3H, s), 2.83 (2H, t),

2.52 (lH, m), 1.80—0.80 (19H, m)]

Synthesis Example 5 (Synthesis of Formula II-11):

3,4-Dimethoxy-3-cyclobutene 1,2-dione 1. Og and 1 .- (p-tolyl) -3-methylbiazoline 5-one 1.33 g were dissolved in 72 ml of methanol, and 0.97 g of potassium carbonate was added to this solution. Was added and the mixture was stirred at 25 ° C for 2 hours, and the precipitate was collected by filtration. The obtained solid was added to a mixture of 0.37 g of potassium carbonate and 16 ml of water and reacted at 50 ° C. for 5 hours. Then, 32 ml of water and an aqueous solution of ImolZ1 hydrochloric acid were added, and the precipitate was collected by filtration. After adding 100 ml of n-butanol, 100 ml of toluene and 0.84 g of 2, -ethylhexanoic acid (3,5-dihydroxyphenylamide) to the obtained solid, put the mixture in a reaction vessel equipped with a Gene Stark apparatus, The mixture was heated under reflux for 4 hours. After the completion of the reaction, the reaction mixture was concentrated at about 10 m by an evaporator, then 10 ml of methanol was collected, cooled to room temperature, and the precipitate was collected by filtration to obtain 0.80 g of the desired compound (Π-11). .

[Melting point: 143 ° C, visible absorption max: 557nm (tetrahydrofura

), Mass spectrum: DEI-MS method m / z = 517 (M +)]

Synthesis Example 6 (Synthesis of Formula II 14):

L- (p-tolyl) -3-methylpyrazolin-5one in Synthesis Example 5 1. Instead of 33 g, 1- (tert-butyl) -3-phenylvirazoline-5-one The same operation as in Example 5 was performed to obtain 0.33 g of the desired compound (Formula 14-14).

[Melting point: 138 ° C, visible absorption max: 558 nm (tetrahydrofura

), Mass spectrum: DEI-MS method m / z = 545 (M +)]

[0348] <Manufacture of filter>

Examples 11-5, Comparative Examples 11-11:

Polyethylene terephthalate film (PET film “T600E U36J (trade name), thickness 50 / zm, manufactured by Mitsubishi Chemical Polyester Film Co., Ltd., thickness 50 / zm)” and polymethyl methacrylate resin (“Dianal BR-80” manufactured by Mitsubishi Rayon Co., Ltd. Name)) In a 30wt% DME solution, as shown in Table 3. A mixture of each dye, DME, and toluene at a ratio (wt% Z 榭 fat) was dissolved and coated with No. 14 Bar Coater I (manufactured by Taiyu Kiki Co., Ltd.), and dried to form a coating film with a thickness of 4.5 m. (Finorem A) was obtained.

[Table 3]

[0350] In Table 2, "TY-300" is a dye of Asahi Den-Dai Kogyo Co., Ltd., product number: ΤΥ-300 (trade name).

[0351] A polyethylene terephthalate film (Mitsubishi Chemical Polyester Film's PET film "T600E W07J (trade name), thickness 100 µm)" and an alicyclic alkyl methacrylate resin (Hitachi Kasei Kogyo's "Obtretz OZ" — 1100 ”(trade name): 35% by weight of fat, 2.5% by weight of MEK3, 32.5% by weight of toluene in a solution of a dymo-pium-based near-infrared absorbing dye (N, N, N,, N, -tetrakis (p-dibutyl No. 10 bar coater (Tayu Kikai Co., Ltd.) by mixing and dissolving 3% Z-fat, toluene and MEK. And dried to obtain a coating film with a thickness of 3.0 m. It was. On the back surface of the obtained film, alicyclic alkyl methacrylate resin (“Optrez OZ-1100” (trade name), manufactured by Hitachi Chemical Co., Ltd.) 35% by weight of fat, 32.5% by weight of MEK, 32.5% by weight of toluene In solution, aminothiol nickel complex near-infrared absorbing dye {Bis 2,2- [1,2-di (3fluorophenyl) ethylenedimine] benzenethiolate} -nickel (Π) 5.0 wt% Z , Toluene, and MEK are mixed and dissolved, and a film coated in the same manner, the filter A, an electromagnetic shielding mesh (line width 10 m, line pitch 250 μm), and glass are bonded together. Manufactured by Rialok 8201UV (trade name)), to obtain a filter for a plasma display panel.

[0352] <Filter evaluation method>

(1) Transmittance:

612nm (Te%), 555nm-540nm (interval of lnm) 545nm (Tc%), 525nm (Tb%), 437nm (Td%) of filter by spectrophotometer (“UV3100PC” (trade name) manufactured by Shimadzu Corporation) The transmittance at each light wavelength was measured, and the average transmittance (Ta%) was calculated for 555 nm to 540 nm, and the TbZTa value was determined. The results are shown in Table 4.

[Table 4]

Transmittance (%) 555 540

nm flat

Tb / Ta value

612nm 545nm 473nm 525nm average transmittance

Te (%) Tc () Td (%) Tb (%) (%)

Example 1 29.6 32.8 34.2 46.6 32.5 1.43 Example 2 36.6 37.0 39.6 49.3 35.5 1.39 Example 3 22.8 25.4 25.4 41.8 24.6 1.70 Example 4 33.5 33.9 33.9 36.5 48.2 34.2 1.41 Example 5 31.1 33.9 35.4 44.2 33.3 1.33 Comparative example 1 48.1 34.9 36.7 48.4 34.7 1.39 Comparative Example 2 29.6 32.8 45.3 46.7 32.5 1.43 Comparative Example 3 47.4 34.8 45.6 48.4 34.6 1.40 Comparative Example 4 19.9 31.2 36.2 45.2 30.9 1.47 Comparative Example 5 29.7 32.8 20.2 46.6 32.6 1.43 Comparative Example 6 20.2 31.3 20.0 45.2 30.9 1.45 Comparative Example Example 7 48.6 36.1 43.6 48.9 36.6 1.34 Comparative example 8 22.7 32.5 47.1 47.9 32.8 1.46 Comparative example 9 56.3 36.2 35.7 46.0 35.7 1.29 Comparative example 10 31.1 33.9 45.3 44.2 33.3 1.33 Comparative example 11 47.4 46.4 48.6 49.5 47.1 1.05

(2) Visual evaluation of filter coloring:

After removing the front glass filter from the plasma display (“W32-PD2100” (trade name) manufactured by Hitachi, Ltd.), install the filter in front of the display panel and turn off the plasma display. The filter was illuminated with either one of the daylight fluorescent lamps of the region-emitting type and the daylight fluorescent lamp of the three-wavelength region, and the color tone and contrast of the filter were visually evaluated in each case. The evaluation was performed in a dark room where a three-wavelength region-emitting daylight fluorescent lamp and a three-wavelength region-emitting daylight fluorescent lamp were installed on the ceiling. The results are shown in Table 5.

[Table 5] Filter color (Eye evaluation) Controller PDP sensation

Three-wavelength day white Three-wavelength daylight color Storm transmittance (%) Example 1 Gray Slightly bluish gray Good 37.9 Example 2 Gray Slightly bluish gray Good 38.0 Example 3 Gray Slightly bluish gray Good 31.4 Example 4 gray Slightly bluish gray Good 39.1 Example 5 Gray Slightly bluish dripping Good 37.7 Comparative Example 1 Red Red Good 43.6 Comparative Example 2 Reddish purple Bluish reddish purple Good 38.2 Comparative Example 3 Red Reddish reddish purple Good 43.5 Comparative Example 4 Slightly blueish Green Blue Green Good 34.5 Comparative Example 5 Yellowish Yellow Green Yellowish Yellow Green Good 37.6 Comparative Example 6 Greenish Yellow Green Greenish Yellow Green Good 34.2 Comparative Example 7 Red Red Good 44.1 Comparative Example 8 Slightly Greenish Blue Green Good 35.5 Comparative Example 9 Red Reddish Reddish Purple Good 44.3 Comparative Example 10 Red Purple Blued Reddish Purple Good 37.9 Comparative Example 11 Gray Somewhat bluish gray Poor 45.8

The following examples are for describing the second invention.

Example 6:

A polyacryl film (thickness: 100 m, refractive index: 1.49) that has been subjected to hard coating is set in a vacuum evaporation apparatus, the vacuum chamber is evacuated to about 8 Torr, and oxygen gas is introduced until about 5 Torr. did. Next, magnesium fluoride (refractive index: 1.38) was evaporated using an electron beam evaporation source, and was evaporated to a thickness of about 140 nm on the film to form an external light introducing layer. For the external light introduction layer, use a spectrophotometer (“UV3100PC” (trade name) manufactured by Shimadzu Corporation) and use the emission spectrum (JIS Z8719—1996) of the F10 three-band fluorescent tube. Then, the luminous transmittance (constant [IS Z8105-1 982]) obtained by the calculation method according to JIS Z8722-2000 was 95.6%.

Polyethylene terephthalate film (Mitsubishi Chemical Polyester Film PET film “T600EU36” (trade name), thickness 50 / zm) was added to (1) polymethyl methacrylate resin (Mitsubishi Rayon “Dianal BR— 80 ”(trade name)) 30% by weight DME solution, (2) 1,3-bis (2- (2ethylhexanoylamino) 4,6-dihydroxy-phenyl) cyclobutenediyl-2,4-diolate 0. 438 wt% Z fat, (3) 1- (2-ethanesulfonylamino 4,6-dihydroxyphenyl) -3- (4 ethanesulfo-luamino-1,2,6-dihydroxyphenyl) cyclobutenediyl 2,4-Diolate 0.18 wt% Z-fat, (4) 1,3 bis (2,4,6-trihydroxyphenol) cyclobutenediyl-1,4-diolate 0 067wt% Z fat, (5) 1- (2- (2ethylhexanoylamino) 4,6-dihydroxy sulfide) -3- (5-hydroxy-1-methyl-3-propyl 1H-pyrazole-4yl) cyclobutenediyl-1,4-diolate 0.25 wt% Z fat, (6 ) 1,3-bis (5-hydroxy-1-methyl-3-propyl 1H-pyrazole-4yl) cyclobutenediirim-2,4diolate 0.149 wt% Z-fat, (7) Diamond Resin Yellow L3G (Mitsubishi) 1. 130% 7% fat, (8) DME, (9) Toluene mixed and dissolved, and coated with NO. 14 bar coater (Tayu Kiki Co., Ltd.) After drying, an external light suppressing layer 11 having a coating film having a thickness of 4.5 m was obtained.

[0359] As shown in Fig. 4 as the transmission spectrum 16, the transmission spectrum of the external light suppressing layer had local minimum values at about 55 Onm and about 600nm.

[0360] <Formation of near-infrared absorbing layer>

Polyethylene terephthalate film (Mitsubishi Chemical Polyester Film's PET film “T600EW07” (trade name), 100 m thick) and alicyclic alkyl methacrylate resin (Hitachi Kasei Kogyo's “Ovtrez OZ-1100” ( Trade name)) A dimo-pum absorption dye (N, N, Ν ', Ν', -tetrakis (ρ-dibrutylaminophen) was added to a solution consisting of 35% by weight of fat, 32.5% by weight of MEK and 32.5% by weight of toluene. -R) ρ-Phenylenedipodium hexafluoride antimonate) 11. Mix and dissolve 3% fat, toluene and ΜΕΚ to obtain NO. Coating was performed with a bar coater (manufactured by Taiyu Kikai Co., Ltd.), and the coating was dried to prepare a coating film having a thickness of 3. O / zm.

[0361] Next, on the back surface of this film, an alicyclic alkyl methacrylate resin ("Optrez OZ-1100" (trade name) manufactured by Hitachi Chemical Co., Ltd.) was used. Aminothiol nickel complex near-infrared absorbing dye {bis-2,2- [1,2-di (3-fluorophenyl) ethylenedimine] benzenethiolate} in a solution consisting of 32.5 wt% toluene Mix and dissolve 5.0% 7% fat, toluene and MEK, apply with No. 10 bar coater (Tayu Kikai Co., Ltd.), dry and apply near infrared absorbing films on both sides. A near-infrared absorbing layer 7 was formed.

The above-described external light introducing layer was bonded to the external light incident surface of the glass plate (thickness: 3 mm), and the near-infrared absorbing layer and the external light suppressing layer were sequentially bonded to the opposite surface. An electromagnetic wave shielding layer (125 μm thick PET film (“A4300” manufactured by Toyobo Co., Ltd.) (trade name), a 250 μm line width, 10 μm line pitch) The shielded copper mesh film was affixed to the metal mesh film side, with the adhesive layers provided at the respective interfaces, and the whole was heated under pressure with an autoclave. As a result, a filter for an electronic display having a configuration of an external light introducing layer Z glass Z near infrared absorbing layer Z external light suppressing layer Z electromagnetic wave shielding layer was formed from the light source side.

[0363] Then, a display device was constructed in which this electronic display filter was arranged in front of a plasma display panel ("W32-PD2100" (trade name) manufactured by Hitachi, Ltd.).

[0364] <Evaluation>

For this filter, the light transmittance Y2 (%) at the peak of green emission (545 nm) of the three-band emission fluorescent tube and the light transmittance Y4 (%) at the wavelength of the green emission peak (525 nm) of the display, and the plasma display The luminous transmittance Y1 (%) using the white light emission spectrum and the luminous transmittance Y3 (%) using the light emission spectrum of the three-wavelength band fluorescent lamp F10 were evaluated.

[0365] As a result, Yl = 35.65, Υ2 = 31.67, Υ3 = 32.47, Υ4 = 43.37,

Y4-Y2 = l l. 7 (> 5) Yl-Y2 = 3.98 (> 1)

Yl-Y3 = 3.18 (> 1)

Met.

[0366] The specular reflection component (luminous reflectance (5 ° mirror surface)) was evaluated as follows.

[0367] <Reflection spectrum measurement>

First, using a spectrophotometer with an integrating sphere (Shimadzu Corporation “UV3150” (trade name)) with an incident angle of 5 °, a reference is taken using a reference mirror, and the sample is taken from the outside light introduction layer side. It was set up so that light was incident, and the area of 380-780 nm was measured at lmm intervals.

[0368] <Calculation of luminous reflectance (JIS Z8105-2000)>

Using the obtained reflection spectrum, the Y of the tristimulus value of the XYZ display was calculated and used as the luminous reflectance. The calculation was performed by a calculation method based on JIS Z8105-2000. As an external light source, a three-wavelength band fluorescent lamp F10 having an emission spectrum specified in JIS Z8179-1996 was used.

[0369] As a result of evaluating the filter formed in Example 6,? The luminous reflectance (5 ° mirror surface) was 2.65%.

[0370] The display device configured as described above is placed in a room where an F10 type three-wavelength-band fluorescent tube having a light emission vector specified in JIS Z8719-1996 is turned on as an external light source, and a central portion of the screen is displayed. Then, the contrast of light and dark when the white color was displayed and the remaining color was displayed black, and the color of the filter when the power was turned off were visually evaluated.

[0371] Comparative Example 12:

An electronic display filter provided with an electromagnetic wave shielding layer in the optical path where external light reaches the external light suppressing layer was formed by the following procedure. Note that the composition and forming method of each layer are the same as in Example 6.

[0372] The above-mentioned external light introducing layer is attached to the external light incident surface of a glass plate (thickness: 3 mm), and an electromagnetic wave shielding layer (electromagnetic wave shielding copper having a line width of 250 μm and a line pitch of 10 μm) is attached to the opposite surface. Then, a near infrared absorbing layer and then an external light suppressing layer were respectively pasted on the concave and convex surface of the electromagnetic wave shielding layer via an adhesive layer, followed by heat treatment with an autoclave. [0373] The obtained filter for an electronic display was evaluated in the same manner as in Example 6.

Implementation Y1— Y4 willow as in row 6; Yl = 36.00, Υ2 = 32.01, Υ3 = 3 2.78, Υ4 = 43.89,

Y4-Y2 = l l. 88 (> 5)

Υ1-Υ2 = 3.99 (> 1)

Υ1-Υ3 = 3.22 (> 1)

Met.

The specular reflection component was evaluated in the same manner as in Example 6, and as a result, the luminous reflectance (5 ° mirror surface) was 2.

79%. The contrast of light and dark and the color of the filter in the power-off state were evaluated in the same manner as in Example 6.

[0375] <Evaluation results>

Example 6 in which the electromagnetic wave shield layer was disposed closer to the light emitting display device than the external light suppression layer was compared with Comparative Example 12 in which the electromagnetic wave shield layer was provided in the optical path where the external light reaches the external light suppression layer. The reflectance (return light) was reduced by about 5%, and it was confirmed by visual evaluation that the contrast was improved. Also, regarding the color of the filter, the configuration of Example 6 was felt darker and firmer.

Example 7:

In the same manner as in Example 6, an external light introducing layer, a near infrared absorbing layer, and an external light suppressing layer were formed. That is, the above-described external light introducing layer was bonded to the external light incident surface of the glass plate (thickness: 3 mm), and the near-infrared absorbing layer and the external light suppressing layer were bonded to the opposite surface in this order. The bonding of each layer was performed using an adhesive layer provided at the interface. On the other side of the external light suppression layer, a 30 m thick indium oxide layer and a 15 m thick PET film (A4300 (trade name) manufactured by Toyobo Co., Ltd.) A transparent electromagnetic wave shielding film obtained by laminating a silver thin film layer and an indium oxide layer having a thickness of 30 m in this order by a sputtering method under vacuum (5 × 10 ″ ⁵ Torr) was bonded.

[0377] Then, the whole was heated under pressure by an autoclave. As a result, from the light source side, an electron with a configuration of external light guiding layer Z glass Z near-infrared absorbing layer Z external light suppressing layer Z electromagnetic wave shielding layer A display filter was formed.

The electronic display filter thus obtained was evaluated in the same manner as in Example 6.

[0379] When Y1 to Y4 were measured in the same manner as in Example 6, Yl = 28.99, Υ2 = 26.70, Υ3 = 25.84, Υ4 = 38.92, and

Υ4-Υ2 = 12.22 (> 5)

Υ1-Υ2 = 2.29 (> 1)

Υ1-Υ3 = 3.14 (> 1)

Met.

[0380] As a result of evaluating the specular reflection component in the same manner as in Example 6, the luminous reflectance (5 ° mirror surface) was 3.02%. Further, the contrast of light and dark and the color of the filter in the power-off state were evaluated in the same manner as in Example 6.

[0381] Comparative Example 13:

The same procedure as in Example 7 was carried out except that the transparent electromagnetic wave shielding layer, the near-infrared absorbing layer, and the external light suppressing layer were laminated on the opposite surface of the glass plate in this order, from the light source side, the external light introducing layer Ζ glass Ζ electromagnetic wave shielding A filter for an electronic display having the following structure: layer, near-infrared absorption layer, and external light suppression layer was formed.

[0382] The electronic display filter thus obtained was evaluated in the same manner as in Example 6.

[0383] When Y1-Υ4 was measured in the same manner as in Example 6, Yl = 29.05, Υ2 = 26.88, Υ3 = 25.98, Υ4 = 38.86, and

Y4-Y2 = l l. 98 (> 5)

Υ1-Υ2 = 2.17 (> 1)

Υ1-Υ3 = 3.07 (> 1)

Met.

[0384] The specular reflection component was evaluated in the same manner as in Example 6, and as a result, the luminous reflectance (5 ° mirror surface) was 8.36%. Further, the contrast of light and dark and the color of the filter in the power-off state were evaluated in the same manner as in Example 6.

[0385] <Evaluation results>

Example 7 in which the electromagnetic wave shield layer was disposed closer to the light emitting display device than the external light suppression layer As for Comparative Example 13, the reflectance (return light) was reduced by about 64% as compared with Comparative Example 13 in which the electromagnetic wave shielding layer was provided in the optical path where the external light reaches the external light suppressing layer. It was recognized that the contrast was improved. Also, regarding the color of the filter, the configuration of Example 7 was felt darker and firmer.

[0386] The following examples are for explanation of the third invention.

[0387] Example 8:

A polyacryl film (thickness: 100 m, refractive index: 1.49) that has been subjected to hard coating is set in a vacuum evaporation apparatus, the vacuum chamber is evacuated to about 8 Torr, and oxygen gas is introduced until about 5 Torr. did. Next, magnesium fluoride (refractive index: 1.38) was evaporated using an electron beam evaporation source, and was evaporated to a thickness of about 140 nm on the film to form an external light introducing layer 1 (FIG. 7). This external light introduction layer was measured using a spectrophotometer (“UV3100PC” (trade name) manufactured by Shimadzu Corporation) and the emission spectrum (JIS Z8719—1996) of the F10 three-band fluorescent tube. The luminous transmittance (constant [IS Z8 105-1982]) determined by the calculation method using Z8722-2000 was 95.6%.

Polyethylene terephthalate film as a substrate (Toyo紛績Ltd. PET film "A 7300" (trade port ¾ name), thickness 125 m, haze value (JIS K7105 [Koyoru willow "value) 0.4 ^_0/0) [this, Jifue represented by polymethyl methacrylate Tari rate榭脂(Mitsubishi rayon Co., Ltd. "Dianal BR- 80" (trade name)) 30 w _t% toluene solution of the above general formula (XVII) - Rusukuaririumu based compound Compound A having the following composition is 0.37% 7% fat, Compound B 0.26wt% 7% fat, PYL3G (manufactured by Mitsubishi Iridaku Co.) 0.80% wt Z DME and toluene were mixed and dissolved, coated with a NO.30 bar coater (manufactured by Taiyu Kikai Co., Ltd.), and dried to obtain an external light suppressing layer 11 having a coating film having a thickness of 4.5 μm.

[0389] The transmission spectrum 16 of the external light suppressing layer had a minimum value K at about 575 nm as shown in FIG. [0390] Compound A:

(n) H ₉ C ₄ (H ₅ ) C ₄ H ₉ (n)

[0391] Compound B:

[0392] <Formation of near-infrared absorbing layer>

Polyethylene terephthalate film as a substrate (Toyo紛績Ltd. PET film "A 7300" (trade port ¾ name), thickness 125 m, haze value (JIS K7105 [Koyoru willow "value) 0.4 ^_0/0) [this, polymethyl methacrylate Tari rate榭脂(manufactured by Mitsubishi Rayon Co., Ltd. "Dianal BR- 80" (trade name)) Jiimo to 30 w _t% toluene solution - ©-time system near the near-infrared absorbing dye (N, N, Ν ', Ν', -tetrax (ρ-dibultylaminophen) ρ-phenylenediforme hexamonate antimonate) 7. Mix and dissolve 6% of fat, toluene and ΜΕΚ. Then, it was coated with a NO. 30 bar coater (manufactured by Taiyu Kikai Co., Ltd.) and dried to produce a near-infrared absorbing film.

[0393] Next, on the back surface of the base film, a dithiol nickel complex near-infrared absorbing dye {was added to a 30 wt% toluene solution of polymethyl methacrylate resin ("Dyanal BR-80" (trade name) manufactured by Mitsubishi Rayon Co., Ltd.). Bis 2,2 '-[1,2-di (3-chlorophenyl) ethylenedimine] benzenthiolate} -Heckel (11) 9.2 Mixture of 2wt% Z-fat, toluene and THF To form a near-infrared absorbing layer 7 having near-infrared absorbing films on both sides.

[0394] <Formation of filter for electronic display>

An external light suppressing layer was bonded to one surface of the near infrared absorbing layer. Also, near infrared absorption layer The remaining surface was bonded with an electromagnetic shield mesh (line width 12 m, line pitch 300 m, aperture ratio about 92%) and a glass plate. Finally, the above-described external light introducing layer was attached to the external light incident surface of the glass plate 3 to form an electronic display filter.

[0395] Then, a display device in which this electronic display filter was arranged in front of a plasma display panel ("W32-PD2100" (trade name) manufactured by Hitachi, Ltd.) was configured. This configuration is equivalent to the configuration shown in Fig. 7.

[0396] <Evaluation>

For this filter, the light transmittance Y2 (%) at the green emission peak (545 nm) of the three-wavelength emission fluorescent tube and the light transmittance Y4 (%) at the green emission peak wavelength (525 nm) of the display, and the plasma display The luminous transmittance Y1 (%) using the white light emission spectrum and the luminous transmittance Y3 (%) using the emission spectrum of the three-wavelength band fluorescent lamp F10 were evaluated.

[0397] As a result, Yl = 40.7, Υ2 = 36.6, Υ3 = 38.8, Υ4 = 51.8,

Υ4-Υ2 = 15.2 (> 5)

Υ1-Υ2 = 4.1 (> 1)

Υ1-Υ3 = 1.9 (> 1)

Met.

[0398] The display device configured in this manner is installed in a room where an F10 type three-wavelength band light-emitting fluorescent tube having a light emission vector specified by JIS Z8719-1996 is turned on as an external light source, and a central portion of the screen is displayed. Then, the contrast of light and dark when the white color was displayed and the remaining color was displayed black, and the color of the filter when the power was turned off were visually evaluated.

[0399] Comparative Example 14:

A display device was constructed and evaluated in the same manner as in Example 8 except that the external light introducing layer was not used.

[0400] For this filter, when Y1-—4 was measured in the same manner as in Example 8, Y1 = 40.5, Υ2 = 36.5, Υ3 = 38.6, Υ4 = 51.7, and

Υ4-Υ2 = 15.2 (> 5)

Υ1-Υ2 = 4.0 (> 1) Yl-Y3 = l. 9 (> 1)

Met. The evaluation was performed in the same manner as in the examples.

[0401] <Evaluation results>

In Example 8 using the external light introducing layer, it was confirmed that the contrast was improved as compared with Comparative Example 14 in which the external light introducing layer was not used. Even when not used, the color of the filter seemed darker and tighter when the external light introducing layer was used than when it was not used.

[0402] The following examples are for explanation of the fourth invention.

[0403] Example 9:

A polyacryl film (thickness: 100 m, refractive index: 1.49) that has been subjected to hard coating is set in a vacuum evaporation apparatus, the vacuum chamber is evacuated to about 8 Torr, and oxygen gas is introduced until about 5 Torr. did. Next, magnesium fluoride (refractive index: 1.38) was evaporated using an electron beam evaporation source, and was evaporated to a thickness of about 140 nm on the film to form an external light introducing layer 1 (FIG. 7). This external light introduction layer was viewed by a calculation method according to JIS Z87 22-2000 using a spectrophotometer UV3100PC manufactured by Shimadzu Corporation and the emission spectrum (JIS Z8719-1996) of a three-wavelength emission fluorescent tube F10. The light transmittance (constant [IS Z8105-1982]) was determined to be 95.6%.

Polyethylene terephthalate film as a substrate (Toyo紛績Ltd. PET film "A 7300" (trade port ¾ name), thickness 125 m, haze value (JIS K7105 [Koyoru willow "value) 0.4 ^_0/0) [this, Jifue represented by polymethyl methacrylate Tari rate榭脂(manufactured by Mitsubishi Rayon Co., Ltd. "Dianal BR- 80" (trade name)) 30 w _t% toluene solution of the above general formula (XVII) - Rusukuaririumu based compound The above compound A having the following composition is 0.37 wt% Z fat, the above compound B is 0.26 wt% Z fat, PYL3G (manufactured by Mitsubishi Iridaku Co.) 0.80 wt% Z The resin, DME and toluene are mixed and dissolved, and the mixture is coated with a NO.30 bar coater (manufactured by Taiyu Kikai Co., Ltd.) and dried to form an external light suppressing layer 11 having a coating film having a thickness of 4.5 / zm. Obtained.

[0405] As shown in Fig. 2, the transmission spectrum 16 of the external light suppressing layer has a minimum value K at about 575 nm. Was.

[0406] <Formation of near-infrared absorbing layer>

[0407] Next, on the back surface of the base film, a dithiol nickel complex near-infrared absorbing dye { Bis 2,2 '-[1,2-di (3-chlorophenyl) ethylenedimine] benzenthiolate} -Heckel (11) 9. Mix and dissolve 2wt% Z-fat, toluene and THF Coating was performed to form a near-infrared absorbing layer 7 having near-infrared absorbing films on both sides.

An external light suppressing layer was bonded to one surface of the near infrared absorbing layer. In addition, an electromagnetic wave shielding mesh (line width 12 m, line pitch 300 m, aperture ratio about 92%) and a glass plate are attached to the remaining surface of the near infrared absorption layer. Finally, the above-described external light introducing layer was attached to the external light incident surface of the glass plate 3 to form an electronic display filter.

[0409] Then, a display device in which this electronic display filter was arranged in front of a plasma display panel ("W32-PD2100" (trade name) manufactured by Hitachi, Ltd.) was configured. This configuration is equivalent to the configuration shown in Fig. 7.

[0410] <Evaluation>

The light transmittance Y2 (%) at the green emission peak (545 nm) of the three-band fluorescent lamp of this filter, the light transmittance Y4 (%) at the green emission peak wavelength (525 nm) of the display, and the plasma display Luminous transmittance Y1 (%) using the white emission spectrum, Luminous transmittance Y3 (%) using the emission spectrum of the three-band fluorescent lamp F10 Was evaluated.

[0411] As a result, Yl = 40.7, Υ2 = 36.6, Υ3 = 38.8, Υ4 = 51.

8 and

Υ4-Υ2 = 15.2 (> 5)

Υ1-Υ2 = 4.1 (> 1)

Υ1-Υ3 = 1.9 (> 1)

Met.

[0412] The display device configured in this manner is placed in a room illuminated with an F10-type three-wavelength-band fluorescent tube having an emission vector specified by JIS Z8719-1996 as an external light source, and the center of the screen is displayed. Then, the contrast of light and dark when the white color was displayed and the remaining color was displayed black, and the color of the filter when the power was turned off were visually evaluated.

[0413] Comparative Example 15:

Polyethylene terephthalate film (PET film “T600E125W07” (trade name) manufactured by Mitsubishi Chemical Polyester Film Co., Ltd., thickness 125 m, haze value measured by CilS K7105 2.0%) as a base material of the near infrared absorbing layer 2.0%) Each layer was formed in the same manner as in the example, except that was used, a filter for an electronic display was formed, and evaluation was performed in the same manner as in the example.

[0414] When Y1 to Y4 were measured for this filter in the same manner as in Example 9, Yl = 40.8, Υ2 = 36.8, Υ3 = 39.1, Υ4 = 51.9, and Υ4-Υ2 = 15.1 (> 5) Y1-Y2 = 4.0 (> 1) Υ1-Υ3 = 1.7 (> 1). The evaluation was performed in the same manner as in Example 9.

[0415] <Evaluation results>

In Example 9 using a substrate having a haze value of 0.4%, it was observed that the contrast was improved as compared with Comparative Example 15 using a substrate having a haze value of 2.0%. Was. The color of the filters also seemed darker and tighter.

[0416] The following examples are for explanation of the fifth invention.

Example 10:

Hard coated polyacrylic film (100 m thick, refractive index 1.49) After setting the vacuum chamber to about 8 Torr, oxygen gas was introduced to about 5 Torr. Next, magnesium fluoride (refractive index: 1.38) was evaporated using an electron beam evaporation source, and was evaporated to a thickness of about 140 nm on the film to form an external light introducing layer 1 (FIG. 7). This external light introduction layer was viewed by a calculation method according to JIS Z87 22-2000 using a spectrophotometer UV3100PC manufactured by Shimadzu Corporation and the emission spectrum (JIS Z8719-1996) of a three-wavelength emission fluorescent tube F10. The light transmittance (constant [IS Z8105-1982]) was determined to be 95.6%.

[0418] <Formation of external light suppressing layer>

Polyethylene terephthalate film as a substrate (Toyo紛績Ltd. PET film "A 7300" (trade port ¾ name), thickness 125 m, haze value (JIS K7105 [Koyoru willow "value) 0.4 ^_0/0) [this, Jifue represented by polymethyl methacrylate Tari rate榭脂(manufactured by Mitsubishi Rayon Co., Ltd. "Dianal BR- 80" (trade name)) 30 w _t% toluene solution of the above general formula (XVII) - Rusukuaririumu based compound The above compound A having the following composition is 0.37 wt% Z fat, the above compound B is 0.26 wt% Z fat, PYL3G (manufactured by Mitsubishi Iridaku Co.) 0.80 wt% Z The resin component, DME and toluene were mixed and dissolved, coated with a No. 30 bar coater (manufactured by Taiyu Kiki Co., Ltd.), dried, and dried to form an external light suppressing layer 11 having a coating film with a thickness of 4.5 / zm. Obtained.

[0419] The transmission spectrum 16 of this external light suppressing layer had a minimum value K at about 575 nm as shown in FIG.

[0420] <Formation of near-infrared absorbing layer>

Polyethylene terephthalate film as a substrate (Toyo紛績Ltd. PET film "A 7300" (trade port ¾ name), thickness 125 m, haze value (JIS K7105 [Koyoru willow "value) 0.4 ^_0/0) [this, polymethyl methacrylate Tari rate榭脂(manufactured by Mitsubishi Rayon Co., Ltd. "Dianal BR- 80" (trade name)) Jiimo to 30 w _t% toluene solution - ©-time system near the near-infrared absorbing dye (N, N, Ν ', Ν', -tetrax (ρ-dibultylaminophenol) ρ-phenylenedimo- hexamonate hexafluoride) 7. Mix and dissolve 6% of fat, toluene and ΜΕΚ And coated with a No. 30 bar coater (manufactured by Taiyu Kikai Co., Ltd.) and dried to produce a near-infrared absorbing film.

[0421] Next, on the back surface of the base film, a 30% by weight toluene solution of polymethyl methacrylate resin ("Dyanal BR-80" (trade name) manufactured by Mitsubishi Rayon Co., Ltd.) was mixed with a dithiol nickel complex. Near-infrared absorbing dye {Bis 2, 2 '-[1,2-di (3-chlorophenyl) ethylenediimine] benzenthiolate] -Heckel (11) 9. Mix 2wt% Z-fat, toluene and THF After dissolving and coating similarly, a near-infrared absorbing layer 7 having near-infrared absorbing films on both surfaces was formed.

[Formation of Electromagnetic Wave Shielding Layer]

The base material is a 125 μm thick, 700 mm wide polyethylene terephthalate film (A4300 (trade name, manufactured by Toyobo Co., Ltd., 90% visible light transmittance)), and a thermosetting adhesive (Takeda Pharmaceutical Co., Ltd.) “Takedac A310” (trade name) manufactured by Co., Ltd.) was applied using a roll coater and dried to obtain a coating amount of 4 g / m ² . Then, copper foil (“EXP-WS” (trade name), 700 mm wide, 9 μm thick, manufactured by Furukawa Circuit Wheel Co., Ltd.), both surfaces of which have been subjected to chromate treatment by chromate treatment, is used as a chromate layer. Using a laminating device that also has a metal roll and a rubber roll so as to overlap the adhesive layers, the laminate was attached to obtain a multilayer sheet having a thickness of 137 m.

Next, a masking process and an etching process were performed. Specifically, casein was used as a light-sensitive resist, and was applied so as to cover the entire surface (copper foil surface) while transporting the multilayer sheet. As the pattern plate, a shape for forming a mesh portion and a frame portion for grounding (grounding) as shown in Fig. 13 was used. In Example 10, a mesh angle of 90 degrees, a mesh line width of 15 μm, and a line pitch of 200 m (an aperture ratio of about 81%) was used. Then, contact exposure was performed using this pattern plate, and after development, baking was performed at 100 ° C.

[0424] Further, using a resist pattern as an etching-resistant mask, an etching solution (ferric chloride solution) is sprayed onto the copper foil, and the exposed portion is etched to form a mesh portion and a frame portion for ground. did. After washing with water and stripping of the resist with an alkaline solution, further washing and drying were performed to form an electromagnetic shield mesh. When the opening ratio of the mesh portion was measured, it was 78%. The visible light transmittance of the electromagnetic wave shielding layer (that is, the configuration in which the transparent substrate and the mesh were combined) was 69.0%.

[0425] <Formation of filter for electronic display>

An external light suppressing layer was bonded to one surface of the near infrared absorbing layer. Further, an electromagnetic wave shielding layer and a glass plate 3 were bonded to the remaining surface of the near-infrared absorbing filter. Finally, the above-described external light introducing layer is attached to the external light incident surface of the glass plate 3, and the electronic display filter is formed. Ruta was formed.

[0426] Then, a display device was constructed in which this electronic display filter was arranged in front of a plasma display panel ("W32-PD2100" (trade name) manufactured by Hitachi, Ltd.). This configuration is equivalent to the configuration shown in Fig. 7.

[0427] <Evaluation>

The light transmittance Y2 (%) at the green emission peak (545 nm) of the three-band fluorescent lamp of this filter, the light transmittance Y4 (%) at the green emission peak wavelength (525 nm) of the display, and the plasma display The luminous transmittance Y1 (%) using the white emission spectrum and the luminous transmittance Y3 (%) using the emission spectrum of the three-wavelength band fluorescent lamp F10 were evaluated.

[0428] As a result, Yl = 34.3, Υ2 = 30.9, Υ3 = 32.7, Υ4 = 43.

7 and

Υ4-Υ2 = 12.8 (> 5)

Υ1-Υ2 = 3.4 (> 1)

Υ1-Υ3 = 1.6 (> 1)

Met.

[0429] The display device configured in this manner is placed in a room where an F10 type three-wavelength-band emission fluorescent tube having a light emission vector specified in JIS Z8719-1996 is turned on as an external light source, and a central portion of the screen is displayed. Then, the contrast of light and dark when the white color was displayed and the remaining color was displayed black, and the color of the filter when the power was turned off were visually evaluated.

[0430] Comparative Example 16:

As the electromagnetic wave shielding layer, the electromagnetic wave shielding mesh (line width 12 m, line pitch 300 μm, aperture ratio 92%) bonded to the surface of the near-infrared absorption filter to which the external light suppression layer is bonded is used. Then, the above-described external light introducing layer was attached to the glass plate and the external light incident surface, thereby forming a filter for an electronic display. The visible light transmittance of the electromagnetic wave shielding layer (that is, the combination of the transparent substrate and the mesh) was 83%.

[0431] For this filter, Y1-Y4 were measured in the same manner as in Example 10. Yl = 40.7, Y2 = 36.6, Y3 = 38.8, Υ4 = 51.8,

Υ4-Υ2 = 15.2 (> 5)

Υ1-Υ2 = 4.1 (> 1)

Υ1-Υ3 = 1.9 (> 1)

Met. The evaluation was performed in the same manner as in Example 10.

[0432] <Evaluation results>

It was confirmed that the contrast of Example 10 was improved as compared with Comparative Example 16. In addition, the color of the filter was a tighter achromatic color.

[0433] The following examples are for describing the sixth invention.

[0434] In the following examples and comparative examples, measurement of surface roughness and evaluation of peel strength were performed as follows.

[0435] <Glass surface roughness measurement>

Using a non-contact 3D measuring machine (“次元 -5 機” (trade name), manufactured by Mitaka Optical Instruments Co., Ltd.) with a cutoff value of 0.80 mm, the measurement length is 0.1 mm at L m pitch. Scan was measured over The average value of the data obtained in one scan was defined as the Ra value. One sample was scanned three times, and the value obtained by simply averaging the Ra value of each time was used as the final surface roughness Ra value.

[0436] <Peel strength measurement>

The peel strength was measured by the following method. The unit was kgfZ20mm.

(1) The actual size sample to which the film was attached was divided so as to be approximately A4 size. This method was adopted because the glass with ceramic printing is heat-strengthened and cannot be cut.

(2) A slit with a width of 20 mm and a length of about 200 mm was made in the surface film of the divided part. Approximately 90 mm of the glass was peeled off so that it could be sandwiched between the chucks of a Tensilon tensile tester to obtain test pieces.

(3) The sample was left in a constant temperature and humidity room at 23 ° C and a humidity of 50% for 30 minutes to adjust the condition.

(4) Using a Tensilon tensile tester at the same temperature and humidity as in (3), measure the 180 ° peel strength over a length of 100 mm at a tensile speed of 150 mmZ, and set the maximum value as the peel strength. .

Example 11: As a transparent substrate, a glass plate with a length of 580 mm, a width of 980 mm, a thickness of 2.5 mm, and a black frame printing (approximately 50 mm wide) on the outer periphery was prepared. In frame printing, multiple types of inks (mainly composed of glass and organic pigments) used for ceramic printing were selected, and the surface roughness after printing was 0.15 m in arithmetic average height Ra. The surface roughness (Ra) of the unprinted glass surface was 0.01 μm.

[0438] Next, a polyethylene terephthalate film ("A4300" (trade name) manufactured by Toyobo Co., Ltd.) having a thickness of 125 m and a width of 700 mm was used as a base material, and a thermosetting adhesive ("Takeda Pharmaceutical Co., Ltd." Takedac A310 ”(trade name)) was applied with a roll coater and dried to obtain a coating amount of 4 g / m ² . Then, a copper foil ("EXP-WS" (trade name), 700 mm wide, 9 µm thick, manufactured by Furukawa Circuit Foil Co., Ltd.), both sides of which have been subjected to chromate treatment by chromate treatment, Using a laminating device having the strength of a metal roll and a rubber roll, the sheets were attached so that the layers overlapped to obtain a multilayer sheet having a thickness of 137 m.

[0439] Next, a masking process and an etching process were performed. Specifically, casein was used as a light-sensitive resist, and was applied so as to cover one surface (copper foil surface) of the multilayer sheet while transporting it. The shape used to form the mesh part and the frame part for grounding (grounding) as shown in Fig. 13 was used as the pattern plate. In this example, a mesh angle of 90 °, a mesh line width of 12 μm, and a mesh pitch of 300 m were used. Then, close exposure was performed using this pattern plate, and after the development, baking was performed at 100 ° C.

[0440] Further, using a resist pattern as an etching-resistant mask, an etching solution (ferric ferric salt solution) is sprayed on the copper foil, and the exposed portion is etched to form a mesh portion and a frame portion for ground. did. After washing with water and stripping of the resist with an alkaline solution, further washing and drying are performed, and a release film (“MRF75” (trade name) manufactured by Mitsubishi Iridaku Polyester Film Co., Ltd.)) is coated with an adhesive (Soken Iridani). An electromagnetic wave shield film with adhesive by transferring the adhesive release film aged from SK Dyne-2094 (trade name) manufactured by Gakusha Co., Ltd. with a thickness of 25 μm, dried and aged on the remaining surface of the base film. Was formed.

[0441] Next, this electromagnetic shielding mesh film was overlaid on a glass plate, aligned, cut, and bonded. In this state, the width d of the overlapping portion between the electromagnetic wave shielding mesh film and the frame printing portion was set to 40 mm on each side. After bonding, use an autoclave The sample was heat-treated at 60 ° C, 0.6 MPa, and 60 minutes to obtain an actual size sample.

[0442] Temperature 1 hour holding time at 60 ° C, 1 hour cooling time from 60 ° C to 10 ° C, 1 hour holding time at 10 ° C, 10 ° C force rising time to 60 ° C Table 6 shows the results of measuring the peel strength and observing the appearance of floating and air bubbles in the ceramic printed part after repeating the heat cycle test 150 times, one cycle consisting of one hour, for a total of four hours.

Example 12:

Among the glass substrates subjected to ceramic printing, those having a surface roughness after printing of 0.10 μm in arithmetic average height Ra were selected. After printing, the surface roughness (Ra) of the glass surface was 0.01 m. Otherwise, the results of evaluation in the same manner as in Example 11 are shown in Table 6.

[0444] Comparative Example 17:

Using a glass plate without ceramic printing (surface roughness Ra = 0.01), an electromagnetic shielding mesh film prepared in the same manner as in Example 11 was attached. Positioning was performed so that the position of attachment was almost the same. Table 6 shows the results of the evaluation performed in the same manner as in Example 11.

Example 13:

Polyethylene terephthalate film (PET film “T600E50W07” (trade name) manufactured by Mitsubishi Chemical Polyester Film Co., Ltd., trade name: 50 μm) and polymethyl methacrylate resin (“Dianal BR-80” manufactured by Mitsubishi Rayon Co., Ltd.) (Trade name)) In a 30 wt% toluene solution, the above compound A, which is a diphenylsquarylium-based compound represented by the above general formula (XVII) and having the following composition, is added in an amount of 0.37% 7% fat, Compound B of 0.26% 7% fat, P YL3G (manufactured by Mitsubishi Idakugaku Co., Ltd. (trade name)) 0.80% by weight of Z fat, DME and toluene are mixed and dissolved, and coated with a gravure coater. After drying, the release film ("MRF75" (trade name) manufactured by Mitsubishi Idani Polyester Film Co., Ltd.) is coated with an adhesive ("SK Dyne 2094" (trade name) manufactured by Soken Danigaku Co., Ltd.) to a thickness of 25 mm. After coating and drying at μm, By transferring the Ingu surface to obtain an adhesive with optically functional film having a coating film having a thickness of 6 m. [0446] The transmission spectrum 16 of this filter had a minimum value K at about 575 nm as shown in FIG.

[0447] Formation of near infrared cut layer>

Polyethylene terephthalate film (Mitsubishi Chemical Polyester Film's PET film “T600E50W07” (trade name), thickness 50 μm, haze value (measured by JIS K7105) 1.3%), and polymethyl methacrylate resin (Mitsubishi Rayon “Dianal BR-80” (trade name)) In a 30 wt% toluene solution, a dimmo-pum-based near-infrared absorbing dye (N, N, Ν ', Ν', -tetrakis (ρ-jibulchirua) Minofel) ρ-Phenylene dimodium hexafluoride antimonate) 7. Mix and dissolve 6% fat, toluene and ΜΕΚ, apply with gravure coater and dry. .

[0448] Next, on the back surface of the film, a polymethylmethacrylate resin (Dianal BR-80; manufactured by Mitsubishi Rayon Co., Ltd.) was added to a 30 wt% toluene solution of a dithiol nickel complex near infrared absorbing pigment {bis 2, 2 '— [1,2-di (3-chloroethyl) ethylenedimine] benzenethiolate} Nickel (11) 9.2wt% Z-fat, toluene and THF are mixed and coated in the same manner. Then, an adhesive (“SK Dyne-2094” (trade name) manufactured by Soken-Danigaku Co., Ltd.) with a thickness of 25 μm is applied to a release film (“MRF75” (trade name) manufactured by Mitsubishi Iridaku Polyester Film Co., Ltd.). The dried and aged adhesive release film was transferred to a dithiol nickel complex near infrared absorbing dye coating surface to produce an adhesive functional film.

A near-infrared cut layer was adhered to the mesh surface of the glass substrate to which the electromagnetic wave shielding mesh film was applied, which was created in Example 11, with an adhesive, and an external light suppressing layer was further adhered with an adhesive, thereby suppressing external light. A filter for electronic displays having a function and a near-infrared cut function was formed.

[0450] In this state, after leaving to stand in a high-temperature and high-humidity state in the same manner as in Example 11, the external light suppressing layer and the near-infrared cut layer were removed, and a peel strength test was performed in the same manner as in Example 11. Are shown in Table 6.

[0451] [Table 6] Example 11 Example 12 Example 13 J: 較 ί 17 17 Ceramic printing Yes Yes Yes No Electromagnetic wave shielding mesh film Yes Yes Yes Yes Outside light suppression layer No Yes Yes No Near infrared cut layer No No Yes No No Surface roughness Ra .m) 0.15 0.10 0.15 0.01 Initial peel strength (kgf / 20mm) 3.2 2.7 3.1 1.7

-10-60 ° C Heat Peeling strength (kgf / 20mm) 3.1 2.6 2.9 1.5 Cycles after 150 cycles Floating / bubbles None None None Slight <Evaluation results>

As is clear from Table 6 showing the evaluation results of Example 11 13 and Comparative Example 17, Example 11 13 in which the surface roughness was sufficiently large, frame printing was performed, and a film was stuck using the surface. It was confirmed that the sample had sufficient strength 1 and peeling strength even after being left in a high temperature and high humidity environment. On the other hand, in Comparative Example 17 in which the film was stuck with a small surface roughness, the peel strength after leaving in a high-temperature, high-humidity environment in which the initial peel strength was low was further reduced, and peeling occurred. A state that was easy to do was confirmed.

Claims

Claims [1] A filter for an electronic display used in an electronic display device having a light-emitting display device, wherein the filter has the following transmittance characteristics.

(3) The average value (%) of the light transmittance at a wavelength of 540 nm to 555 nm is 40% or less.

(4) The value obtained by dividing the light transmittance (%) at a wavelength of 525 nm by the average value (%) of the light transmittance at a wavelength of 540 nm to 555 nm is 1.10 or more.

[2] The difference between the maximum value and the minimum value in the transmittance (%) at a wavelength of 545 nm, the transmittance (%) at a wavelength of 437 nm, and the transmittance (%) at a wavelength of 612 nm is 5 or less. Finoleta for electronic display.

3. The filter for an electronic display according to claim 1, wherein the filter has a minimum value of transmittance in a wavelength range of 480 nm to 520 nm.

[4] The filter for an electronic display according to any one of [13] to [13], which has a minimum value of transmittance in a wavelength range of 530 nm to 610 nm.

5. The electronic display filter according to claim 4, wherein a minimum value of transmittance is developed in a wavelength range of 530 nm to 610 nm by containing a compound having a maximum absorption in a wavelength range of 530 nm to 610 nm.

6. The filter for an electronic display according to claim 5, wherein a transmittance is controlled by containing a compound absorbing any one of 437 nm, 545 nm, and 612 nm.

7. The electronic display filter according to claim 3, comprising a compound having a maximum absorption in a wavelength range of 480 to 520 nm.

[8] The electron according to any one of [17] to [17], further comprising a layer containing an ultraviolet absorbent. Display filter.

[9] The finoleta for an electronic display according to any one of claims 118, wherein a near-infrared cut layer is provided.

[10] The finoleta for an electronic display according to any one of claims 119, wherein an electromagnetic wave shielding layer is provided.

[11] The finoleter for an electronic display according to any one of claims 110, further comprising an antireflection layer.

[12] The electronic display filter according to any one of [11] to [11], further comprising an anti-glare (non-glare) layer.

[13] An electronic display filter used in an electronic display device having a light emitting display device,

The light transmittance (%) at the wavelength of the green emission peak of the three-band fluorescent tube is 5 or more lower than the light transmittance (%) at the wavelength of the green emission peak of the light emitting display device, or the light emitting display device is white. The light transmittance (%) at the wavelength of the green emission peak of the three-band fluorescent tube is 1 or more lower than the luminous transmittance (%) when using the emission spectrum! (4) An electronic display filter having transmission characteristics and having any one of the following configurations (A) to (D).

(A) An external light suppressing layer for suppressing transmission of a specific wavelength component of incident light and an electromagnetic wave shielding layer for suppressing electromagnetic wave radiation from the electronic display device are provided on the surface of the filter for electronic display on the light emitting display device side. The electromagnetic wave shielding layer is disposed so as to be closer to the light emitting display device than the external light suppressing layer.

(B) An external light introduction layer having a luminous transmittance of 90% or more is arranged on the outermost surface of the electronic display filter.

(C) The electronic display filter is composed of a transparent base material having a haze value of 1.5% or less.

(D) An electromagnetic wave shielding layer having a visible light transmittance of 60 to 80% is disposed on the surface of the filter for an electronic display on the light emitting display device side.

[14] The luminous transmittance (%) when using the emission spectrum (JIS Z8719—1996) of the three-band fluorescent lamp F10 is the same as when using the white emission spectrum of the light-emitting display device. 14. The filter for an electronic display according to claim 13, wherein the filter is one or more lower than the luminous transmittance (%).

15. The electronic display filter according to claim 13, wherein in (A), the electromagnetic wave shielding layer is a thin film having a conductive material strength.

16. The electronic display filter according to claim 13, wherein in (A), the electromagnetic wave shielding layer is formed of a mesh conductive material.

[17] The electronic display filter according to [13], wherein in (1), the external light introducing layer is provided on an outermost surface.

18. The electronic display filter according to claim 13, wherein in the above (B), an electromagnetic wave shielding layer made of a thin film of a conductive material is provided on the light emitting display device side.

[19] The electronic display filter according to claim 13, wherein in (C), an electromagnetic wave shielding layer composed of a thin film of a conductive material is provided on the light emitting display device side.

20. The electronic display filter according to claim 13, wherein in the above (D), the electromagnetic wave shielding layer is formed of a mesh-shaped conductive material having an aperture ratio of 65 to 90%.

[21] The filter for an electronic display according to claim 13, wherein in (D), the electromagnetic wave shielding layer is formed of a thin film of a conductive material.

[22] The filter for an electronic display according to claim 13, which has the transmittance characteristic according to claim 1.

[23] A transparent substrate as a support for an electronic display filter used in an electronic display device having a light emitting display device,

It has a frame-shaped opaque area on the outer periphery of the transparent substrate surface,

A transparent substrate for a filter for an electronic display, wherein the surface roughness of an opaque area is 0.05 to 100 μm in arithmetic average height (Ra).

[24] The transparent substrate of the filter for an electronic display according to claim 23, wherein the opaque area is formed by printing.

25. The transparent substrate for an electronic display filter according to claim 24, wherein the transparent substrate is glass and the printing is ceramic printing.

26. The transparent substrate for an electronic display filter according to claim 24, wherein the opaque region is formed by printing and then surface-treated.

[27] The transparent substrate for an electronic display filter according to any one of [23] to [26], wherein the opaque region has a surface roughness of 0.10 to 100 µm in arithmetic average height (Ra).

28. The electronic display filter according to claim 23, wherein the transparent substrate is rectangular, and the surface roughness in a direction parallel to the longitudinal direction of the transparent substrate is larger than the surface roughness in other directions. Transparent substrate.

[29] An electronic display filter, wherein at least one optical functional film is attached to the transparent substrate of the electronic display filter according to any one of claims 23 to 28.

30. The electronic display filter according to claim 29, wherein the optical functional film is a film containing a compound having a maximum absorption in a wavelength range of 530 nm to 6 lOnm.

[31] The filter for an electronic display according to claim 1, comprising the transparent substrate according to claim 23.

[32] An electronic display filter according to any one of claims 1, 13 and 29 is provided.

V, an electronic display device.

33. The electronic display device according to claim 32, wherein the electronic display filter is in contact with the light emitting display device surface via a transparent member.