JPH0829787A - Liquid crystal display device - Google Patents

Abstract

PURPOSE:To provide a bright and high-definition liquid crystal display device. CONSTITUTION:A high-polymer dispersion type or a guest-host type liquid crystal layer 3 is interposed between a substrate 1 and a substrate 2. The substrate 1 is provided with a glass substrate 10, a transparent electrode 14 and a black matrix 15. The substrate 2 is provided with a glass substrate 20, plural matrix- state TFTs 110, 120 and 130, dot-matrix-state transparent electrodes 51, 52 and 53 respectively connected to the TFTs 110, 120 and 130, a fluorescent material contained red coloring layer 41, a fluorescent material containing green coloring layer 42 and a fluorescent material containing blue coloring layer 43 under the electrodes 51, 52 and 53 and reflection layers 61, 62, and 63 under them. Then, light is made incident from the substrate 10 side and observed from the identical side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device.

[0002]

2. Description of the Related Art In a liquid crystal display device, particularly a color liquid crystal display device, one using a color filter or a polarizing plate and using backlight illumination has been widely used.

In addition, a liquid crystal display device in which a reflective substrate is arranged behind a liquid crystal panel made by sandwiching liquid crystal with a transparent substrate having two transparent electrodes and a polarizing plate attached to the outside of the transparent substrate has already been used. It is commercially available. This liquid crystal display device can save power because it does not use backlight illumination, and is widely used in small and medium-sized panels such as word processors and electric desk calculators. It is also used in portable personal computers.

Further, in order to increase the utilization rate of external light, it has been considered to use a guest-host type liquid crystal panel which does not use a polarizing plate or a polymer dispersion type liquid crystal panel. Guest-host liquid crystal display in which a daylight fluorescent pigment is mixed in the reflective layer of the reflective substrate in order to correct the effect of absorption of dichroic dye mixed in the guest-host liquid crystal and improve the reflective characteristics of the reflective substrate. A device is also presented (Japanese Patent Laid-Open No. 58-10785).

[0005]

However, there is a problem that the one using a backlight consumes a large amount of power.
Further, the reflective liquid crystal display device generally has problems such as dark display, low contrast, and difficulty in colorization. In particular, a liquid crystal color display device using a transmissive color filter has an extremely low light utilization efficiency, and is not suitable for a reflective display. Furthermore, in the guest-host type liquid crystal display device in which the above-mentioned daylight fluorescent pigment is mixed in the reflective layer of the reflective substrate, the reflectance of the reflective substrate outside the liquid crystal panel is simply made flat with respect to the wavelength. It is only a correction of the color tone and brightness of the entire display, and does not have a mechanism capable of high definition and bright display.

Therefore, the present invention solves such a problem, and its object is to provide a bright and high-definition liquid crystal display device.

[0007]

According to the present invention, a first substrate having a character-shaped first electrode on its one main surface and a second substrate having a second electrode on its one main surface. And a liquid crystal layer sandwiched between the one main surface of the first substrate and the one main surface of the second substrate, the liquid crystal display device of a character display type including a daylight fluorescent substance. A liquid crystal display device is provided, in which a color-developing layer is formed by stacking with the first electrode or the second electrode.

Preferably, the first electrode or the second electrode on which the coloring layer is laminated is a transparent electrode, and the transparent electrode is provided on the liquid crystal layer side with respect to the coloring layer. .

More preferably, the coloring layer and the first
A reflective layer is further provided between the one main surface of the substrate and the one main surface of the second substrate.

Preferably, the first electrode or the second electrode on which the color forming layer is laminated is a reflective electrode, and in this case, the color forming layer is the liquid crystal layer with respect to the reflective electrode. It is provided on the side.

Further, according to the present invention, a plurality of strip-shaped first
Substrate having one electrode on its one main surface, a second substrate having a plurality of strip-shaped second electrodes on its one main surface, the one main surface of the first substrate and the second substrate. A liquid crystal display device of a simple matrix type having a liquid crystal layer sandwiched between the substrate and the one main surface of the substrate, and a coloring layer containing a daylight fluorescent substance is used as the first electrode or the second electrode. A liquid crystal display device is provided which is formed by stacking.

In this liquid crystal display device, preferably,
The first electrode or the second electrode on which the coloring layer is laminated.
The electrode is a transparent electrode, and the transparent electrode is provided on the liquid crystal layer side with respect to the color forming layer.

More preferably, the color forming layer and the first
A reflective layer is further provided between the one main surface of the substrate and the one main surface of the second substrate.

Preferably, the first electrode or the second electrode on which the coloring layer is laminated is a reflecting electrode, and the coloring layer is provided on the liquid crystal layer side with respect to the reflecting electrode. There is.

Furthermore, according to the present invention, a plurality of switching elements arranged in a matrix on one main surface thereof and a matrix on the one main surface electrically connected to the plurality of switching elements, respectively. A first substrate having a plurality of first electrodes arranged in a line, a second substrate having a second electrode on one main surface thereof, the one main surface of the first substrate and the first substrate In an active matrix type liquid crystal display device having a liquid crystal layer sandwiched between the second substrate and the one main surface, a coloring layer containing a daylight fluorescent substance is laminated on each of the plurality of first electrodes. A liquid crystal display device, wherein the first electrode is a transparent electrode, and the first electrode, which is a transparent electrode, is provided on the liquid crystal layer side with respect to the coloring layer. To be done.

[0016] Preferably, the transparent electrode extends from the switching element onto the color forming layer and covers the color forming layer.

The color-developing layer may be a color-developing layer in which the daylight fluorescent substance is dispersed in polyimide.

Further, preferably, a reflective layer is further provided between the color forming layer and the one main surface of the first substrate.

More preferably, the reflective layer is a reflective electrode.

Further, according to the present invention, a plurality of switching elements arranged in a matrix on one main surface thereof and a plurality of switching elements electrically connected to each other are formed in a matrix on the one main surface. A first substrate having a plurality of first electrodes arranged thereon, a second substrate having a second electrode on its one main surface, the one main surface of the first substrate and the second substrate In an active matrix type liquid crystal display device having a liquid crystal layer sandwiched between the substrate and the one main surface, a color forming layer containing a daylight fluorescent substance is formed by laminating with the second electrode. A liquid crystal display device is provided.

[0021] Preferably, the second electrode is a transparent electrode, and the second electrode, which is the transparent electrode, is provided on the liquid crystal layer side with respect to the coloring layer.

Further, preferably, a reflective layer is further provided between the color forming layer and the one main surface of the second substrate.

Also, preferably, the second electrode is a reflective electrode, and the color-developing layer is the reflective electrode.
Further, according to the present invention, the plurality of switching elements arranged in a matrix on one main surface thereof and the plurality of switching elements are electrically connected to each other. A first substrate having a plurality of first electrodes connected to each other and arranged in a matrix on the one main surface; and a second substrate having a second electrode on the one main surface,
An active matrix type color liquid crystal display device having a liquid crystal layer sandwiched between the one main surface of the first substrate and the one main surface of the second substrate, wherein a first daylight fluorescent material is provided. And a red color-developing layer which appears red under daylight, a second color-developing layer containing a second daylight fluorescent substance and which appears green under daylight, and a third daylight-fluorescent substance containing a blue color under daylight Visible blue coloring layer is formed by laminating with each of the plurality of first electrodes or each of the portions of the second electrode corresponding to the plurality of first electrodes, and the area of the blue light emitting layer is A liquid crystal display device is provided, which is larger than the area of the red light emitting layer, and the area of the blue light emitting layer is larger than the area of the green light emitting layer.

Further, according to the present invention, a plurality of switching elements arranged in a matrix on one main surface thereof and a plurality of switching elements electrically connected to each other are formed in a matrix on the one main surface. A first substrate having a plurality of first electrodes arranged thereon, a second substrate having a second electrode on its one main surface, the one main surface of the first substrate and the second substrate In an active matrix type color liquid crystal display device having a liquid crystal layer sandwiched between the substrate and the one main surface, a first coloring layer containing a first daylight fluorescent substance and a second daylight fluorescent material. A second color-forming layer containing a substance and a third color-forming layer containing a third daylight fluorescent substance, each of the plurality of first electrodes or the plurality of first electrodes of the second electrode; It is formed by stacking with each of the parts corresponding to And light emitted from the first coloring layer under the light emitted from the second color layer in daylight,
Although the color mixture with the light emitted from the third color forming layer does not become white under daylight, the fluorescence efficiency of the first daylight fluorescent substance, the fluorescence efficiency of the second daylight fluorescent substance, and the The sum of the fluorescence efficiency of the third daylight fluorescent material becomes the fluorescence efficiency of the red fluorescent material that appears red under daylight, the fluorescence efficiency of the green fluorescent material that appears green under daylight, and the blue efficiency under daylight. Provided is a liquid crystal display device characterized in that it is larger than the sum of the fluorescence efficiencies of visible blue phosphors.

Preferably, the first daylight fluorescent material is a red fluorescent material that looks red under daylight, and the second daylight fluorescent material is a green fluorescent material that looks green under daylight. The fluorescence efficiency of the third daylight fluorescent material is higher than that of the blue fluorescent material that appears blue under daylight.

In this case, the third daylight fluorescent substance is preferably a fluorescent substance which looks yellow under daylight.

The liquid crystal layer is preferably a polymer-dispersed liquid crystal layer.

Preferably, the liquid crystal layer is a guest-host type liquid crystal layer.

[0029]

The daylight fluorescent substance used in the present invention emits fluorescence when excited by light in the short wavelength region of ultraviolet to visible light, which is a large part of daylight, and exhibits a practical light emitting effect under daylight. To have. The daylight fluorescent pigment is obtained by incorporating the daylight fluorescent substance, so-called fluorescent dye, into synthetic resin fine particles as a solid solution. Daylight fluorescent substances and daylight fluorescent pigments have the characteristic of exhibiting an extremely bright color under daylight or daylight-like illumination, and even if pigments are filled at high concentrations, multiple pigments are mixed. The feature is that it does not quench even if it does. When a daylight fluorescent substance, for example, a daylight fluorescent pigment is formed into an ink and formed into a film to form a color forming layer, the reflection component and the fluorescence component are added in a specific wavelength range, and the reflectance may exceed 100%.
Various colors can be developed, and of course white color can be obtained.

If such a coloring layer containing a daylight fluorescent substance is used in a liquid crystal display device, the light utilization efficiency can be increased and a bright liquid crystal display device can be obtained. In particular, by using a daylight fluorescent substance that looks red under daylight, a daylight fluorescent substance that looks green under daylight, and a daylight fluorescent substance that looks blue under daylight, the color filter can be eliminated. Bright color display is possible.

Further, by providing the color forming layer containing the daylight fluorescent substance inside the substrate of the liquid crystal display device, it is possible to realize a high-definition display and increase the aperture ratio. That is, the cell gap of the liquid crystal display device is usually 5 to 10 μm, and the thickness of the substrate is usually about 1 mm. Therefore, if the coloring layer is provided on the outside of the substrate, the alignment accuracy with the electrodes and the liquid crystal layer provided on the inside of the substrate deteriorates, and the light from the coloring layer on the outside of the substrate also reaches the inside of the substrate. Since it spreads, it is difficult to miniaturize each display element,
In addition, it is necessary to increase the distance between the display elements. On the other hand, if the coloring layer is provided inside the substrate, the alignment accuracy with the electrodes that drive the liquid crystal provided inside the substrate and the liquid crystal layer will be significantly improved, and the light from the coloring layer will also be absorbed by the electrodes inside the substrate. Since it hardly spreads before reaching the liquid crystal layer, a liquid crystal display device having high definition and a large aperture ratio can be obtained.

As described above, when the color-developing layer is provided inside the substrate, how to increase the contrast becomes a problem. In a liquid crystal display device in which a normal TN liquid crystal and a polarizing plate are combined, incident light to the liquid crystal is polarized by the polarizing plate, and the liquid crystal display device is configured by adjusting the polarization state by the liquid crystal. On the other hand, if a coloring layer containing a daylight fluorescent substance is provided inside the substrate, the fluorescence emitted from the coloring layer cannot pass through the polarizing plate, so that a certain amount of light is always emitted regardless of the polarization state of the liquid crystal. Comes out of the liquid crystal display device. That is, in a liquid crystal display device that controls the polarization state of the liquid crystal to perform display, providing the coloring layer inside the substrate causes a reduction in contrast.

For the liquid crystal layer, it is preferable to use a type in which light is turned on / off by the liquid crystal itself rather than a type in which the polarization direction of light is changed. That is, in the liquid crystal layer of the present invention, a polymer dispersed liquid crystal (PDLC) that utilizes light scattering / transmission, a guest-host liquid crystal (GHLC) that utilizes light absorption / transmission, or a combination of both. Guest guest polymer dispersed liquid crystal (GH-PDLC) is preferably used.

This principle will be described with reference to FIG. FIG.
4, a red coloring layer 401, a green coloring layer 402, and a blue coloring layer 403 are provided on the glass substrate 20, and the liquid crystal is GH.
-A liquid crystal display device 100 in which PDLC is used is shown as an example. However, in order to simplify the description, the pixel electrodes, switching elements, etc. are omitted. White light 4
When 10 is incident on each color forming layer 401, 402, 403,
Red coloring layer 401, green coloring layer 402, blue coloring layer 40
Red fluorescence 411, green fluorescence 412, and blue fluorescence 413 are emitted from 3 respectively. In the example of FIG. 44, when the liquid crystal 430 corresponding to red and blue is in the off state, the red fluorescence 411 and the blue fluorescence 4 are generated.
The liquid crystal display device 100 is scattered and absorbed by the liquid crystal layer 3.
Hardly appears outside the. That is, red and blue are displayed in black. On the other hand, the liquid crystal 430 corresponding to green is in the ON state, and the green fluorescent light 412 passes through the liquid crystal layer 3 and emerges outside the liquid crystal display device 100. That is, the display is green here.

As shown in this example, if a color forming layer is provided inside the substrate using a liquid crystal that determines whether light is transmitted (on) or not transmitted (off: scattered or absorbed) by the liquid crystal itself, a bright contrast is obtained with a small amount of light. Higher and brighter display is possible. In addition, in order to enhance the contrast, a single polarizing plate may be attached to the GHLC liquid crystal panel. GHLC
The liquid crystal layer is usually a nematic liquid crystal, but it may be a vertically aligned liquid crystal layer using the phase transition effect of a cholesteric liquid crystal, and both can obtain excellent light control.

The color-developing layer may be provided on either side of the two substrates sandwiching the liquid crystal, but from the viewpoint of improving the contrast and obtaining a clear display, the color-developing layer is provided with external light (liquid crystal display device). It is preferable to provide it on the substrate farther from the viewing point). This will be described with reference to FIG. 45, assuming the same situation as in FIG. 44, it is assumed that white light 410 such as a backlight is incident on the liquid crystal display device 100 and the viewpoint is above. FIG. 45A shows the red coloring layer 4
01, the green coloring layer 402, and the blue coloring layer 403 are outside light 42.
45B shows a case where the red color forming layer 401, the green color forming layer 402, and the blue color forming layer 403 are provided on the glass substrate 10 which is closer to the outside light 420. It is shown in FIG. In addition, FIGS. 45 (A) and 45 (B) both show an example in which red and blue are off and only green is visible, as in the case of FIG. 44.

In the case shown in FIG. 45 (A), for red and blue, the red fluorescent light 411 and the blue fluorescent light 413 generated from the white light 410 are scattered and absorbed by the liquid crystal layer 3 in the off state, and the external light 420 is also liquid crystal. Since the light does not pass through the layer 3, the red and blue portions are completely black. In the green area, the green fluorescent light 412 generated by the white light 410 passes through the liquid crystal layer 3 in the ON state, and the external light 420 also passes through the liquid crystal layer 3 to pass through the green coloring layer 4.
Since it reaches 02, fluorescence due to external light 420 also occurs,
Brighter green display. That is, in a bright outside light environment, the pixels to be colored emit light brighter and the contrast is further enhanced. On the other hand, in the case shown in FIG.
Although the white light 410 does not reach the red and blue areas, the external light 420 enters the red coloring layer 401 and the blue coloring layer 403, so that the red fluorescence 411 and the blue fluorescence 413 due to the external light 420.
Will occur, and you will be in a situation where you can see colors you do not want to display.

As described above, when the color-developing layer is provided on the substrate closer to the external light (see FIG. 45 (B)), the contrast is lowered under the bright external light environment. On the other hand, in the case where a liquid crystal utilizing light transmission / non-transmission such as GH-PDLC is used, and a coloring layer containing a daylight fluorescent substance is provided inside the substrate far from the outside light (FIG. 45).
In (A), not only the efficiency of light utilization is increased, but also in a bright outside light environment, pixels to be colored emit light brighter, and a clear display that is easy to see can be obtained.

Further, the surface roughness of the coloring layer is important for obtaining a clear display with high contrast. As in the present invention, when a non-transmissive state is created by utilizing the scattering and absorption of light by the liquid crystal when the liquid crystal is in the off state, if the light is scattered when the liquid crystal is in the on state, the light in the on state is correspondingly The transmittance of the is reduced, and the light in the on state becomes darker. That is, if there is extra scattering other than the liquid crystal in the off state, the contrast will be reduced. The surface roughness of the substrate and the color-developing layer is important for eliminating extra scattering.

The center line average roughness (Ra) of the surface roughness of the inside of a substrate such as a glass substrate is preferably 3 nm or less, and when Ra is 0.8 nm or less, scattering on the glass surface does not pose any problem. On the other hand, the surface roughness of the color-developing layer varies depending on the particle size of the fluorescent substance and the dispersion state thereof. When the coloring layer itself has conductivity and serves as a pixel electrode, or when the pixel electrode made of a conductive film such as indium tin oxide (ITO) is provided between the liquid crystal and the coloring layer, the coloring layer Ra is preferably at least 100 nm or less. If it is larger than this, the thickness of the liquid crystal layer fluctuates, and it becomes difficult to apply a uniform electric field to the liquid crystal. That is,
If Ra of the coloring layer is 100 nm or less, the liquid crystal is turned on.
The off can be controlled accurately. Further, when Ra of the color-developing layer is 50 nm or less, the scattering at the color-developing layer or the pixel electrode on the color-scattering layer becomes small, and the deterioration of the contrast can be avoided. Ideally, Ra of the coloring layer is 10 nm or less, which is on the order of the surface roughness of inexpensive unpolished glass.

When a solid is used for the daylight fluorescent substance, it is preferable that the daylight fluorescent substance is dispersed in a resin such as a polyimide resin or a urea resin, and these are applied to form a color forming layer. This dispersion can be relatively easily obtained by using a dispersing machine such as a ball mill or a sand mill, and the above smooth color forming layer is formed.
A surface active agent such as sodium alkylbenzenesulfonate, highly saturated resin acid (for example, lauric acid or myristic acid), and phosphatidylcholine may be added when the daylight fluorescent substance is dispersed in the resin using a sand mill or the like. .
The amount of the surfactant added is preferably about 0.1 to 10 when the weight of the daylight fluorescent substance is 100.

The liquid crystal display device of the present invention using the color forming layer containing a daylight fluorescent substance can be used as a reflection type liquid crystal display device or a transmission type liquid crystal display device.

When used as a transmissive liquid crystal display device, light may be incident from any substrate side, but in order to reduce the influence of surface reflection and enhance contrast, a daylight fluorescent substance is contained. It is preferable that light is incident from the back side of the substrate provided with the color forming layer. In this case, the observation is performed from the side of the substrate on which the coloring layer containing the daylight fluorescent substance is not provided. When the coloring layer containing the daylight fluorescent substance has conductivity, it can also serve as an electrode by itself. However, if the conductivity is not sufficient only by the color-forming layer containing the daylight fluorescent substance or the color-forming layer containing the daylight fluorescent substance is non-conductive, a transparent electrode is provided in the color-forming layer containing the daylight fluorescent substance. It is preferable to use them by stacking. The transparent electrode is preferably made of ITO (Indium-Tin).
-Oxide) is used. Either of the transparent electrode and the color-developing layer containing the daylight fluorescent substance may be laminated so that they are on the liquid crystal layer side, but it is preferable to provide the transparent electrode on the liquid crystal side with respect to the color-developing layer. This is because the voltage applied to the liquid crystal display device can be reduced and the voltage can be accurately applied to the liquid crystal layer. Further, by providing a transparent electrode so as to cover the color forming layer, it can be used as passivation of the color forming layer.

When used as a reflection type liquid crystal display device, light is incident from a substrate on the side opposite to the substrate on which the coloring layer containing a daylight fluorescent substance is provided. Although light can be reflected only by the daylight fluorescent substance, it is preferable to form a reflective layer on the back side of the coloring layer containing the daylight fluorescent substance in order to increase the reflectance. As the reflective layer, a white reflective layer containing a white pigment such as titanium oxide, barium sulfate, zinc oxide, magnesium oxide or calcium carbonate as a main component or a reflective electrode made of a metal such as Al or Cr is preferably used. In the present specification, the term "reflection layer" means both a non-conductive reflection layer and a reflection electrode.

When the coloring layer containing the daylight fluorescent substance has conductivity, it can also serve as the reflection electrode by itself. However, when the conductivity is not sufficient only with the coloring layer containing the daylight fluorescent substance or when the coloring layer containing the daylight fluorescent substance is non-conductive, the electrode is laminated on the coloring layer containing the daylight fluorescent substance. It is preferable to use. When a transparent electrode such as ITO is used as an electrode to be laminated on the color-developing layer, either the transparent electrode or the color-developing layer containing a daylight fluorescent substance may be laminated on the liquid crystal layer side. However, it is preferable to provide the transparent electrode on the liquid crystal side with respect to the color forming layer. This is because the voltage applied to the liquid crystal display device can be reduced and the voltage can be accurately applied to the liquid crystal layer. The transparent electrode can be used as passivation of the coloring layer by providing it so as to cover the coloring layer. In this case, in order to increase the reflectance,
It is preferable that a reflective layer is formed on the back side of the color-developing layer containing the daylight fluorescent substance, and the reflective layer, the color-developing layer and the transparent electrode are laminated in this order on the substrate. Even if a reflective electrode is used as the reflective layer laminated on the back side of the color forming layer, the conductivity of the color forming layer can be supplemented. However, even in this case, it is preferable to further provide the transparent electrode on the liquid crystal side with respect to the color forming layer. This is because the voltage applied to the liquid crystal display device can be lowered, the voltage can be accurately applied to the liquid crystal layer, and by providing the liquid crystal layer so as to cover the color forming layer, it can be used as passivation of the color forming layer.

As described above, the coloring layer is used as the reflecting layer,
It is possible to provide a bright reflective liquid crystal display device capable of color display if light is controlled by the liquid crystal layer. Compared with a guest-host type liquid crystal color display in which a light absorption type dichroic dye is added, 1
A visibility effect of 0 times or more can be obtained.

The daylight fluorescent substance preferably used in the present invention is Rhodamine 6G (red), Basic yel
low HG (yellow), Eoine (red), Brilliantsulfoflavine F
F (blue), 3,6-tetramethyldiamino-N-methylphthalimidide (green), Dioxa
zine violet (blue), Lumogen L Yellow Orenge (orange),
Lumogen L Brilliant Yellow (yellow), Lumogen L Yellow
(Yellow), Lumogen L Blue (Blue), Lumogen Brilliant Gr
een (green), LumogenWater Blue (blue), Fluorol 5G, eosin, thioflavin, MnCl ₂ (red), Sm ₂ (S
_{O 4) 3 · 8H 2 O} ( _{orange), Eu 2 (SO 4)} 3 · 8H
₂ O (red), CaWO ₄ (blue), CaMoO ₄ (yellow green), BaPt (CN) ₄ / 4H ₂ O (green), UO _{2
(NO 3) 2 · 6H 2} O ( green), NaCl: Mn
(Red), KCl: Tl (blue), CaF ₂ : Sm (orange),
ZnS: Cu (yellow green), ZnS: Ag (blue), ZnO:
Zn (white green), CaS: Bi (purple), Zn ₂ SiO _4:
Mn (green), 3Ca ₃ (PO ₄ ) ₂ · Ca (F, Cl)
₂ : Sb, Mn, BaSi ₂ O ₅ : Pb (ultraviolet), (Z
n, Be) ₂ SiO ₄ : Mn (orange), CaSiO ₃ : P
b (deep red), CaSiO ₃ : Mn (deep red), 6MgO.
As ₂ O ₅ : Mn (deep red), Sr ₂ P ₂ O ₇ : Eu (blue violet), BaMg ₂ Al ₁₆ O ₂₇ : Eu (blue), MgGa ₂
O ₄ : Mn (blue-green), (Ce, Tb) MgAl ₁₁ O
₁₉ (green), Y ₂ SiO ₅ : Ce, Tb (green), Y ₂ O
₃ : Eu (red), YVO ₄ : Eu (red), (Sr, M
g, Ba) ₃ (PO ₄ ) ₂ : Sn (orange), 3.5 MgO
・ 5MgF ₂・ GeO ₂ : Mn (red), MgWO ₄
(Blue) and the like.

According to the present invention, the first substrate having the character-shaped first electrode on its one main surface, the second substrate having the second electrode on its one main surface, and the first substrate. In a character display type liquid crystal display device having a liquid crystal layer sandwiched between one main surface of the second substrate and one main surface of the second substrate, a coloring layer containing a daylight fluorescent substance is used as the first electrode or the first electrode. By stacking and forming the second electrode, a high-definition and bright character display type liquid crystal display device is provided.

When the first electrode or the second electrode on which the coloring layer is laminated is a transparent electrode and the transparent electrode is provided on the liquid crystal layer side of the coloring layer, the conductivity of the coloring layer is insufficient. Can supplement its conductivity, further reduce the voltage applied to the liquid crystal display device, and accurately apply the voltage to the liquid crystal layer. In this case,
The other of the first electrode and the second electrode on which the coloring layer is not laminated is also a transparent electrode, and in the case of a transmissive liquid crystal display device, light may enter from any substrate side, but surface reflection In order to reduce the influence of the above and increase the contrast, it is preferable that the light is incident from the side of the substrate on which the color forming layer is provided. In the case of a reflective liquid crystal display device, light is incident from the side of the substrate on which the coloring layer is not provided.

In the case of a reflective liquid crystal display device, a reflective layer is further provided between the color forming layer and one main surface of the first substrate or the second main surface on which the color forming layer is laminated. Thereby, the reflectance can be increased. Even in this case, by providing the transparent electrode on the liquid crystal layer side with respect to the color forming layer, the transparent electrode can supplement the conductivity of the color forming layer or the reflective layer when the conductivity is insufficient. Further, the voltage applied to the liquid crystal display device can be lowered, and the voltage can be applied accurately to the liquid crystal layer.

In the case of a reflection type liquid crystal display device, the first electrode or the second electrode on which the coloring layer is laminated may be used as the reflecting electrode, and the coloring layer may be provided on the liquid crystal layer side with respect to the reflecting electrode. it can. The reflectance can be further increased by stacking the reflective electrode on the coloring layer. Even in this case, by further providing the transparent electrode on the liquid crystal layer side with respect to the color forming layer, the voltage applied to the liquid crystal display device can be lowered, and the voltage can be accurately applied to the liquid crystal layer. .

Further, according to the present invention, a plurality of strip-shaped first
A first substrate having one electrode on its one main surface, a second substrate having a plurality of strip-shaped second electrodes on its one main surface, and a first substrate
In a simple matrix type liquid crystal display device having a liquid crystal layer sandwiched between the one main surface of the substrate and the one main surface of the second substrate, a coloring layer containing a daylight fluorescent substance is provided as a first electrode. Alternatively, a liquid crystal display device formed by stacking with the second electrode is provided.

As a liquid crystal driving method, there is known a so-called simple matrix method in which a plurality of transparent electrodes each having a strip shape are orthogonally arranged on upper and lower substrates. Since the aperture ratio can be increased, it is suitable for a reflection type display, and by applying the present invention as described above, a high-definition and bright simple matrix type liquid crystal display device can be obtained.

When the first electrode or the second electrode on which the coloring layer is laminated is a transparent electrode and the transparent electrode is provided on the liquid crystal layer side with respect to the coloring layer, the conductivity of the coloring layer is insufficient. Can supplement its conductivity, further reduce the voltage applied to the liquid crystal display device, and accurately apply the voltage to the liquid crystal layer. In this case,
The other of the first electrode and the second electrode on which the coloring layer is not laminated is also a transparent electrode, and in the case of a transmissive liquid crystal display device, light may enter from any substrate side, but surface reflection In order to reduce the influence of the above and increase the contrast, it is preferable that the light is incident from the side of the substrate on which the color forming layer is provided. In the case of a reflective liquid crystal display device, light is incident from the side of the substrate on which the coloring layer is not provided. When the coloring layer is non-conductive, the coloring layer may be provided on the entire surface of the substrate, or may have the same strip shape as the first electrode or the second electrode on which the coloring layer is laminated, In addition, a dot shape may be provided in a portion where the first electrode and the second electrode overlap. Further, when the coloring layer is conductive, it may have the same strip shape as the first electrode or the second electrode on which the coloring layer is laminated, and the first electrode and the second electrode overlap each other. You may provide in a dot shape in a part.

In the case of a reflective liquid crystal display device, a reflective layer is further provided between the color forming layer and one main surface of the first substrate or the second main surface on which the color forming layer is laminated. Thereby, the reflectance can be increased. Even in this case, by providing the transparent electrode on the liquid crystal layer side with respect to the color forming layer, the transparent electrode can supplement the conductivity of the color forming layer or the reflective layer when the conductivity is insufficient. Further, the voltage applied to the liquid crystal display device can be lowered, and the voltage can be applied accurately to the liquid crystal layer. In addition, when the coloring layer is non-conductive, the coloring layer may be provided on the entire surface of the substrate, and the first electrode or the second electrode on which the coloring layer is laminated is used.
The electrode may have the same strip shape as that of the first electrode, or may be provided in a dot shape at a portion where the first electrode and the second electrode overlap. Further, when the coloring layer is conductive, it may have the same strip shape as the first electrode or the second electrode on which the coloring layer is laminated, and the first electrode and the second electrode overlap each other. You may provide in a dot shape in a part. Further, in this case, when the reflective layer is non-conductive, the reflective layer may be provided on the entire surface of the substrate, and may have the same strip shape as the first electrode or the second electrode. You may provide in a dot shape in the part which a 1st electrode and a 2nd electrode overlap. Further, when the reflective layer is conductive, the first electrode or the second electrode
The electrode may have the same strip shape as that of the first electrode, or may be provided in a dot shape at a portion where the first electrode and the second electrode overlap.

In the case of a reflection type liquid crystal display device, the first electrode or the second electrode on which the color forming layer is laminated may be used as the reflection electrode, and the color forming layer may be provided on the liquid crystal layer side with respect to the reflection electrode. it can. The reflectance can be further increased by stacking the reflective electrode on the coloring layer. Even in this case, by further providing the transparent electrode on the liquid crystal layer side with respect to the color forming layer, the voltage applied to the liquid crystal display device can be lowered, and the voltage can be accurately applied to the liquid crystal layer. . The transparent electrode preferably has a strip shape. When the coloring layer is non-conductive, the coloring layer may be provided on the entire surface of the substrate, and may have the same strip shape as the reflective electrode on which the coloring layer is laminated. You may provide in a dot shape in the part which a 2nd electrode overlaps. Further, in the case where the coloring layer is conductive, it may have the same strip shape as the reflective electrode on which the coloring layer is laminated, or may be provided in a dot shape in a portion where the first electrode and the second electrode overlap. Good.

Further, according to the present invention, a plurality of switching elements arranged in a matrix on the one main surface and a plurality of switching elements electrically connected to each other are arranged in a matrix on the one main surface. A first substrate having a plurality of first electrodes, a second substrate having a second electrode on its one main surface, one main surface of the first substrate and one main surface of the second substrate In a liquid crystal display device of an active matrix type having a liquid crystal layer sandwiched between and, a color forming layer containing a daylight fluorescent substance is formed by laminating a plurality of first electrodes, and a first electrode is formed. By providing a transparent electrode and a first electrode, which is a transparent electrode, on the liquid crystal layer side with respect to the color forming layer, a liquid crystal display device having high contrast, high definition, bright, and low driving voltage is provided.

As the switching element, a thin film transistor (TFT) or a MIM (Metal-Ins) using a semiconductor thin film such as polysilicon or amorphous silicon is used.
Urator-Metal) is preferably used. In an active matrix type liquid crystal display device using such a switching element, although a large aperture ratio cannot be obtained, high-contrast display is possible in large-capacity display. As in this case, when the switching element and the coloring layer are formed on the first substrate and the switching element is not formed on the second substrate, particularly in a reflective liquid crystal display device, the switching element forms the coloring layer on the coloring layer. Since it is possible to prevent the amount of incident daylight from being attenuated and also to prevent the amount of light reflected from the light emitting layer from being attenuated, a bright reflective liquid crystal display can be realized.

When the first electrode on which the color forming layer is laminated is a transparent electrode and the transparent electrode is provided on the liquid crystal layer side with respect to the color forming layer, the conductivity of the color forming layer is improved when the conductivity is insufficient. The voltage applied to the liquid crystal display device can be reduced, and the voltage can be accurately applied to the liquid crystal layer. Further, in this case, the second electrode on which the coloring layer is not laminated is also a transparent electrode, and in the case of a transmissive liquid crystal display device, light may be incident from any substrate side, but the surface reflection In order to reduce the influence of the above and increase the contrast, it is preferable that the light is incident from the side of the substrate on which the color forming layer is provided. In the case of a reflective liquid crystal display device, light is incident from the side of the substrate on which the coloring layer is not provided.

By forming a transparent electrode from the switching element onto the color forming layer and covering the color forming layer, passivation of the color forming layer can be achieved.

Further, the color forming layer may be a color forming layer in which a daylighting substance is dispersed in polyimide, and may serve as an interlayer film and a color forming layer.

In the case of a reflective liquid crystal display device, the reflectance can be further increased by further providing a reflective layer between the color forming layer and the one main surface of the first substrate.

Further, according to the present invention, a plurality of switching elements arranged in a matrix on one main surface and a plurality of switching elements electrically connected to each other are arranged in a matrix on one main surface. A first substrate having a plurality of first electrodes, a second substrate having a second electrode on its one main surface, one main surface of the first substrate and one main surface of the second substrate In an active matrix type liquid crystal display device having a liquid crystal layer sandwiched between and, by forming a coloring layer containing a daylight fluorescent substance by laminating with a second electrode, high contrast, high definition, A bright liquid crystal display device is provided.

When the second electrode having the coloring layer laminated thereon is a transparent electrode and the transparent electrode is provided on the liquid crystal layer side of the coloring layer, the conductivity of the coloring layer is improved when the conductivity is insufficient. In addition, the voltage applied to the liquid crystal display device can be lowered to lower the driving voltage, and the voltage can be accurately applied to the liquid crystal layer. In this case, the first electrode on which the coloring layer is not laminated is also a transparent electrode, and in the case of a transmissive liquid crystal display device, light may enter from any substrate side, but the influence of surface reflection In order to reduce the amount of light and increase the contrast, it is preferable that light is incident from the side of the substrate on which the color forming layer is provided. In the case of a reflective liquid crystal display device, light is incident from the side of the substrate on which the coloring layer is not provided.

In the case of a reflection type liquid crystal display device, a reflectance layer is further provided between the coloring layer and the one main surface of the first substrate or the one main surface of the second substrate to improve the reflectance. Can be large. Also in this case, by further providing the transparent electrode on the liquid crystal layer side with respect to the color forming layer, the conductivity can be supplemented when the color forming layer has insufficient conductivity, and the voltage applied to the liquid crystal display device can be adjusted. The driving voltage can be lowered by lowering the voltage, and the voltage can be accurately applied to the liquid crystal layer.

Further, in the case of a reflection type liquid crystal display device, the second electrode on which the color forming layer is laminated can be used as the reflection electrode, and the color forming layer can be provided on the liquid crystal layer side with respect to the reflection electrode. The reflectance can be further increased by stacking the reflective electrode on the coloring layer. Also in this case, by further providing the transparent electrode on the liquid crystal layer side with respect to the color forming layer, the voltage applied to the liquid crystal display device can be lowered to lower the driving voltage, and the voltage can be accurately applied to the liquid crystal layer. Can be applied.

Further, according to the present invention, a plurality of switching elements arranged in a matrix on one main surface thereof and a plurality of switching elements electrically connected to each other are arranged in a matrix on one main surface. A first substrate having a plurality of first electrodes, a second substrate having a second electrode on its one main surface, one main surface of the first substrate and one main surface of the second substrate An active matrix type color liquid crystal display device having a liquid crystal layer sandwiched between the first and second daylight fluorescent substances, and a red coloring layer which appears red under daylight, and a second daylight fluorescent substance. Of a plurality of first electrodes or a second electrode of a green color-developing layer that appears green under daylight and a blue color-developing layer that contains a third daylight fluorescent substance and looks blue under daylight. Laminating with each of the portions corresponding to the plurality of first electrodes Form, the area of the blue light-emitting layer was greater than the area of the red light emitting layer, to be larger than the area of the green light emitting layer and the area of the blue light-emitting layer, can be a full-color display of excellent display characteristics. The blue coloring layer generally has a lower luminous efficiency than the red coloring layer and the green coloring layer, so that it is possible to balance the three colors by making the area larger than the coloring layers of other colors. Display characteristics can be obtained.

Further, according to the present invention, a plurality of switching elements arranged in a matrix on one main surface thereof and a plurality of switching elements electrically connected to each other are arranged in a matrix on one main surface. A first substrate having a plurality of first electrodes, a second substrate having a second electrode on its one main surface, one main surface of the first substrate and one main surface of the second substrate An active matrix type color liquid crystal display device having a liquid crystal layer sandwiched between a first color-developing layer containing a first daylight fluorescent substance and a second color containing a second daylight fluorescent substance. And a third color-forming layer containing a third daylight fluorescent substance are respectively laminated with each of the plurality of first electrodes or each of the portions of the second electrode corresponding to the plurality of first electrodes. Light emitted from the first coloring layer under daylight, And light emitted from the second color layer below, although mixture of the light emitted from the third color layer in daylight is not white, the fluorescence efficiency of the first daylight fluorescent substance,
The sum of the fluorescence efficiency of the second daylight fluorescent material and the fluorescence efficiency of the third daylight fluorescent material is defined as the fluorescence efficiency of the red fluorescent material that looks red under daylight and the green fluorescence that looks green under daylight. By making it larger than the sum of the fluorescent efficiency of the substance and the fluorescent efficiency of the blue fluorescent substance that appears blue in daylight, white is not obtained as a color mixture, but a bright liquid crystal display device with high overall luminous efficiency can be obtained. .

In particular, the first daylight phosphor is a red phosphor that looks red under daylight, the second daylight phosphor is a green phosphor that looks green under daylight, and the third daylight phosphor is A bright liquid crystal display device can be easily obtained by making the fluorescent efficiency of the fluorescent substance higher than that of the blue fluorescent substance which appears blue in daylight. And as this 3rd daylight fluorescent substance, it is preferable to use the daylight fluorescent substance which looks yellow in daylight.

[0070]

Next, an embodiment of the present invention will be described with reference to the drawings.

Example 1 FIG. 1 is a schematic sectional view for explaining a liquid crystal display device of this example.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10 and a character-shaped transparent electrode 12 formed on the main surface thereof.
Is provided with a glass substrate 20, a coloring layer 21 containing a daylight fluorescent substance formed on the main surface thereof, and a transparent electrode 22 formed thereon.

An ITO transparent electrode is formed on the glass substrate 10 by a sputtering method and patterned into a character shape by photo-etching to form a character-shaped transparent electrode 12.
To form a substrate 1. Next, the daylight fluorescent substance Rhodamine
6G was added to urea resin as a solid solution and pulverized to obtain a daylight fluorescent pigment having a particle size of about 3 μm. This pigment was dispersed in varnish to form an ink, which was coated on the glass substrate 20 by a roll coating method. It was heated and fixed to form a color-forming layer 21 that looks red in daylight. An ITO transparent electrode 22 was formed thereon by a sputtering method to form a substrate 2.

Next, a liquid crystal containing a black dichroic dye was sandwiched between the substrate 1 and the substrate 2 by a conventional method to prepare a negative guest-host type liquid crystal panel 100.

When a voltage was applied by static driving, a clear red character could be visually recognized from a distance, and there was almost no color development when no voltage was applied. It can be used to display train stops and advertisements such as show windows. When used as a transmissive type, light may enter from any substrate side, but it is preferable to enter light from the glass substrate 20 side in order to reduce the influence of surface reflection and enhance contrast. When used as a reflection type, light is incident from the glass substrate 10 side.

In this embodiment, the ITO transparent electrode 22 is used.
Is provided on the coloring layer 21, the liquid crystal display device 100
The voltage applied to the liquid crystal layer 3 can be reduced.
The voltage could be accurately applied to.

(Embodiment 2) FIG. 2 is a schematic sectional view for explaining the liquid crystal display device of this embodiment.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10 and a character-shaped transparent electrode 12 formed on the main surface thereof, and the substrate 2 includes a glass substrate 20 and a reflective layer 23 formed on the main surface thereof.
And a coloring layer 21 containing a daylight fluorescent substance formed on the reflection layer 23.

Substrate 1 was prepared in the same manner as in Example 1.
Next, an Al electrode was formed on the glass substrate 20 by a sputtering method to form a reflective layer 23, and then a color development layer 21 was formed in the same manner as in Example 1 to produce a substrate 2.

Next, a liquid crystal to which a black dichroic dye was added was sandwiched between the substrate 1 and the substrate 2 by a conventional method to prepare a negative guest-host type liquid crystal panel 100.

When a voltage was applied by static drive, a clear red character could be visually recognized from a distance, and almost no color was developed when no voltage was applied.
Since the liquid crystal display device 100 of this embodiment is a reflection type, light is incident from the glass substrate 10 side.

In this example, since the reflective layer 23 was provided, the effective reflectance of the color forming layer 21 increased, and a brighter red character was observed.

(Embodiment 3) FIG. 3 is a schematic sectional view for explaining a liquid crystal display device of this embodiment.

This example is different from Example 2 (FIG. 2) in that a transparent electrode 22 made of ITO was further formed on the coloring layer 21 by a sputtering method, but the other points are the same, and the manufacturing method is also the same. It is the same.

Also in this example, when a voltage was applied by static drive, a clear red character could be seen from a distance, and almost no color was generated when no voltage was applied.

In this example, since the reflective layer 23 was provided, the effective reflectance of the color forming layer 21 was increased, and a brighter red character was observed. Also,
Since the ITO transparent electrode 22 is provided on the coloring layer 21,
The voltage applied to the liquid crystal display device 100 can be reduced, and the voltage can be accurately applied to the liquid crystal layer 3.

(Embodiment 4) FIG. 4 is a schematic sectional view for explaining the liquid crystal display device of the present embodiment.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10, a character-shaped coloring layer 11 formed on the main surface thereof, and a character-shaped transparent electrode 12 formed on the coloring layer 11, and the substrate 2 is a glass substrate 20. The transparent electrode 22 formed on the main surface is provided.

The daylight fluorescent substance Rhodamine 6G was added to urea resin as a solid solution and pulverized to obtain a daylight fluorescent pigment having a particle size of about 3 μm. This pigment was dispersed in a varnish to form an ink, which was offset printed in a character shape on the main surface of the glass substrate 10. The color-forming layer 11 was heated and fixed, and had a character shape that looked red in daylight. ITO on it
A transparent electrode was formed by a sputtering method and patterned into a character shape by photo-etching to form a character-shaped transparent electrode 12 on the coloring layer 11 to obtain a substrate 1.

Next, the ITO transparent electrode 22 was formed on the main surface of the glass substrate 20 by the sputtering method to form the substrate 2.

Next, a liquid crystal to which a black dichroic dye was added was sandwiched between the substrate 1 and the substrate 2 by a conventional method to prepare a negative guest-host liquid crystal panel 100.

When a voltage was applied by static driving, a clear red character could be visually recognized from a distance, and almost no color was developed when no voltage was applied. The liquid crystal display device 100 of this example was used as a transmissive type, and light was incident from the glass substrate 10 side.

In this embodiment, the ITO transparent electrode 12 is used.
Is provided on the coloring layer 11, the liquid crystal display device 100
The voltage applied to the liquid crystal layer 3 can be reduced.
The voltage could be accurately applied to.

(Embodiment 5) FIG. 5 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

This example is different from Example 4 in that a reflective layer 13 was further provided between the coloring layer 1 and the main surface of the glass substrate 10, but the other points were the same and the manufacturing method was also the same. Is. The reflective layer 13 was prepared by applying an ink containing a white pigment of titanium oxide on the main surface of the glass substrate 10 and heating it to fix it.

Also in this embodiment, when a voltage was applied by static driving, a clear red character could be seen from a distance, and almost no color was generated when no voltage was applied. The liquid crystal display device 100 of this embodiment was used as a reflection type, and light was incident from the glass substrate 20 side.

In this example, since the reflecting layer 13 was provided, the effective reflectance of the coloring layer 11 was increased, and a brighter red character was observed. Also,
Since the ITO transparent electrode 12 is provided on the coloring layer 11,
The voltage applied to the liquid crystal display device 100 can be reduced, and the voltage can be accurately applied to the liquid crystal layer 3.

(Embodiment 6) FIG. 6 is a schematic sectional view for explaining a liquid crystal display device of this embodiment.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10 and a plurality of strip-shaped transparent electrodes 12 formed on the main surface thereof.
The substrate 2 includes a glass substrate 20, a reflective layer 23 formed on the main surface thereof, a coloring layer 21 containing a daylight fluorescent substance formed on the reflective layer 23, and a plurality of strips formed thereon. And a transparent electrode 22 in the shape of.

An ITO transparent electrode was formed on a glass substrate 10 by a sputtering method, and a plurality of strip-shaped transparent electrodes 12 were formed by photoetching to obtain a substrate 1.

Next, an ink containing a white pigment such as titanium oxide, barium sulfate, zinc oxide, magnesium oxide or calcium carbonate was coated on the glass substrate 20 and heated to be fixed to form a reflective layer 23. Daylight fluorescent substance Basic yellow H
G was added to melamine resin as a solid solution and pulverized to obtain a daylight fluorescent pigment having a particle size of about 2 μm. This pigment was dispersed in a varnish to form an ink, which was coated on the reflective layer 23 by a bar coating method. It was heated and fixed to form a coloring layer 21 that looks yellow in daylight. An ITO transparent electrode was formed on the coloring layer 21 by a sputtering method, and a plurality of strip-shaped transparent electrodes 22 were formed by photoetching to obtain a substrate 2.

Next, a liquid crystal added with a polymerizable substance was sandwiched between the substrate 1 and the substrate 2 by an ordinary method, and was irradiated with ultraviolet rays to be polymerized to prepare a negative polymer dispersion type liquid crystal panel 100. .

When a voltage is applied by line-sequential scanning drive with a 1/16 duty, a clear yellow display can be visually recognized, and when not applied, it becomes cloudy and the reflectance is low, and almost no color is observed. , A bright display with high contrast was obtained. It can be used for small and medium-sized panels such as word processors and electric desk calculators. The light was incident from the glass substrate 10 side.

In this example, since the reflective layer 23 was provided, the effective reflectance of the color forming layer 21 increased, and a brighter yellow display was observed. Also, ITO
Since the transparent electrode 22 is provided on the coloring layer 21, the voltage applied to the liquid crystal display device 100 can be reduced,
Further, the voltage could be accurately applied to the liquid crystal layer 3.

Example 7 This example is different from Example 6 in that the reflective layer 23 is not provided, but the other points are the same and the manufacturing method is also the same.

Also in this embodiment, when a voltage is applied by line-sequential scanning drive with 1/16 duty, a clear yellow display can be visually recognized, and when not applied, it is clouded and almost no color is produced. It was not observed, and a bright display with high contrast was obtained. When used as a transmissive type, light may be incident from any substrate side, but it is preferable to inject light from the glass substrate 20 side in order to reduce the influence of surface reflection and enhance contrast. When used as a reflection type, light is incident from the glass substrate 10 side.

In this embodiment, the ITO transparent electrode 22 is used.
Is provided on the coloring layer 21, the liquid crystal display device 100
The voltage applied to the liquid crystal layer 3 can be reduced.
The voltage could be accurately applied to.

(Embodiment 8) FIG. 8 is a schematic sectional view for explaining a liquid crystal display device of this embodiment.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10 and a plurality of strip-shaped transparent electrodes 12 formed on the main surface thereof.
The substrate 2 is a glass substrate 20, a plurality of strip-shaped reflective electrodes 23 formed on the main surface thereof, and a plurality of dot-shaped daylight fluorescent substance-containing coloring layers formed on the reflective electrode 23. 21 and 21. The plurality of dot-shaped coloring layers 21 are provided at the intersections of the strip-shaped transparent electrode 12 and the strip-shaped reflective electrode 23.

An ITO transparent electrode was formed on a glass substrate 10 by a sputtering method, and a plurality of strip-shaped transparent electrodes 12 were formed by photoetching to obtain a substrate 1.

Next, a chromium electrode was formed on the glass substrate 20 by a sputtering method, and a plurality of strip-shaped reflecting electrodes 23 were formed by photoetching.

An acrylic resin was emulsion polymerized in the presence of a daylight fluorescent substance Lumogen L Yellow Orenge to obtain a daylight fluorescent pigment having a particle size of about 0.5 μm. The pigment was dispersed in a varnish to form an ink, which was screen-printed on the reflective electrode 23 in a dot matrix so as to overlap the display pixel. The substrate 2 was formed by heating and fixing, and forming a coloring layer 21 that looks orange in daylight with a film thickness of about 2 μm.

Next, a liquid crystal containing a white dichroic dye was sandwiched between the substrate 1 and the substrate 2 by a conventional method to prepare a negative guest-host type liquid crystal panel 100.

When a voltage is applied by line-sequential scanning drive with a 1/16 duty, a clear orange display can be visually recognized. When no voltage is applied, the display is clouded and the reflectance is low, and almost no coloring is observed. , A bright display with high contrast was obtained. It can be used for small and medium-sized panels such as word processors and electric desk calculators. The light was incident from the glass substrate 10 side.

In this example, since the reflective electrode 23 was provided, the effective reflectance of the coloring layer 21 was increased, and a brighter orange display was observed.

In this embodiment, the coloring layer 21 containing the dot-shaped daylight fluorescent substance is formed on the strip-shaped reflecting electrode 23, but the strip-shaped reflecting electrode 23 is also used as the coloring layer 21. It can also be formed on top.

(Embodiment 9) FIG. 9 is a schematic sectional view for explaining a liquid crystal display device of this embodiment.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10 and a plurality of strip-shaped transparent electrodes 12 formed on the main surface thereof.
The substrate 2 includes a glass substrate 20 and a coloring layer 21 containing a plurality of dot-shaped daylight fluorescent substances formed on the main surface thereof.
It is provided with a plurality of strip-shaped transparent electrodes 22 formed thereon. The plurality of dot-shaped coloring layers 21 are provided at the intersections of the strip-shaped transparent electrodes 12 and the strip-shaped transparent electrodes 22.

Substrate 1 was prepared in the same manner as in Example 8.
Next, the acrylic resin was emulsion-polymerized in the presence of the daylight fluorescent substance Lumogen L Yellow Orenge to obtain a daylight fluorescent pigment having a particle size of about 0.5 μm. This pigment was dispersed in a varnish to form an ink, which was screen-printed on the glass substrate 20 in a dot matrix form so as to overlap the display pixels. Coloring layer 2 that is fixed by heating and looks orange in daylight with a film thickness of about 2 μm
1 was formed. Next, an ITO transparent electrode was formed on the glass substrate 20 by a sputtering method, and a plurality of strip-shaped transparent electrodes 22 were formed by photoetching to obtain a substrate 2.

Next, a liquid crystal containing a white dichroic dye was sandwiched between the substrate 1 and the substrate 2 by a conventional method to prepare a negative guest-host type liquid crystal panel 100.

When a voltage is applied by line-sequential scanning drive with a 1/16 duty, a clear orange display can be visually recognized, when it is not applied, the display is clouded, and almost no color development is observed. A bright display of was obtained. When used as a transmissive type, light may be incident from any substrate side, but it is preferable to inject light from the glass substrate 20 side in order to reduce the influence of surface reflection and enhance contrast. When used as a reflection type, light is incident from the glass substrate 10 side.

In this embodiment, the ITO transparent electrode 22 is used.
Is provided on the coloring layer 21, the liquid crystal display device 100
The voltage applied to the liquid crystal layer 3 can be reduced.
The voltage could be accurately applied to.

In this embodiment, the coloring layer 21 containing the dot-shaped daylight fluorescent substance is formed under the transparent electrode 22 having a strip shape. It can also be formed under 22.

(Embodiment 10) FIG. 10 is a schematic sectional view for explaining a liquid crystal display device of this embodiment.

This example is different from the example 8 in that a plurality of band-shaped transparent electrodes 22 made of ITO were further formed on the color forming layer 21 by the sputtering method, but the other points are the same and the manufacturing method is also the same. It is the same.

Also in this embodiment, when a voltage is applied by line-sequential scanning drive with a 1/16 duty, a clear orange display can be visually recognized, and when not applied, it becomes cloudy and the reflectance is low. Almost no coloring was observed, and a bright display with high contrast was obtained.

In this example, since the reflective electrode 23 was provided, the effective reflectance of the coloring layer 21 was increased, and a brighter orange display was observed. Also IT
Since the O transparent electrode 22 is provided on the color forming layer 21, the voltage applied to the liquid crystal display device 100 can be reduced, and the voltage can be accurately applied to the liquid crystal layer 3.

In the present embodiment, the coloring layer 21 containing the dot-shaped daylight fluorescent substance is formed between the strip-shaped reflecting electrode 23 and the transparent electrode 22.
A strip-shaped reflecting electrode 23 and a transparent electrode 2 having a strip-like shape
It can also be formed between the two.

(Embodiment 11) FIG. 11 is a schematic sectional view for explaining a liquid crystal display device of this embodiment.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10, a transparent electrode 14 formed on the main surface thereof, and a black matrix 15 provided on the transparent electrode 14, and the substrate 2 is the glass substrate 2
0 and a plurality of Ts formed in a matrix on the main surface thereof.
FT110, 120, 130 and a plurality of TFTs 110,
A plurality of dot-shaped transparent electrodes 51, 52 and 53, which are respectively connected to 120 and 130 and are formed in a matrix.
A red coloring layer 41, a green coloring layer 42, and a blue coloring layer 43 which are respectively formed under the plurality of transparent electrodes 51, 52, 53.
It has and.

The TFT 110 has a source 111 and a drain 1
12 and a gate electrode 113. The TFT 120 includes a source 121, a drain 122, and a gate electrode 123. The TFT 130 has a source 131 and a drain 13
2 and a gate electrode 133. TFT 110, 1
The layers ₂₀ and 130 are covered with an interlayer insulating film 26 made of SiO ₂ . The sources 111, 121, 131 are connected to the source electrodes 114, 124, 134 via contact holes provided in the interlayer insulating film 26, respectively. The drains 112, 122 and 132 are the interlayer insulating film 26.
The transparent electrodes 51, 52 and 53 are connected to the transparent electrodes 51, 52 and 53 respectively. Red coloring layer 4
1, the green coloring layer 42 and the blue coloring layer 43 are the interlayer insulating film 26.
It is formed above and is covered with transparent electrodes 51, 52, and 53, respectively. The black matrix 15 is provided on a region where the red coloring layer 41, the green coloring layer 42, and the blue coloring layer 43 are not provided.

First, ITO was formed on the glass substrate 10 by the sputtering method to form the transparent electrode 14. Next, the black matrix 15 was selectively formed on the transparent electrode to form the substrate 1.

Next, the TFTs 110, 120, and 130 using polysilicon are formed on the glass substrate 20 by 640, respectively.
× 400 pieces were formed in a matrix. Then TFT11
An interlayer insulating film 26 was formed to cover 0, 120 and 130.
Next, using an ink containing CaSiO ₃ : Pb, 3
Dot size of 00μm × 100μm 640 × 40
Offset printing was selectively performed on the inter-layer insulating film 26 in a matrix of 0 pieces, and ink containing Zn ₂ SiO ₄ : Mn was used to form 64 dots having a size of 300 μm × 100 μm.
Offset printing was selectively performed on the interlayer insulating film 26 in a matrix of 0 × 400 pieces, and ink containing ZnS: Ag was used to form 64 dots of 300 μm × 100 μm.
Offset printing was selectively performed on the interlayer insulating film 26 in a matrix of 0 × 400 pieces. After that, it is dried and fixed, and the red coloring layer 41 looks red under daylight, the green coloring layer 42 looks green under daylight, and the blue coloring layer 43 looks blue under daylight.
Were formed in a dot matrix shape on the interlayer insulating film 26.

Next, contact holes reaching the surfaces of the sources 111, 121, 131 and the drains 112, 122, 132, respectively, were selectively formed in the interlayer insulating film 26. Next, the source electrodes 114, 124, 134
Are connected to the sources 111, 121 and 131 via contact holes formed in the interlayer insulating film 26, respectively. Further, the transparent electrode 51 is formed so as to extend from the drain 112 on the red coloring layer 41 so as to cover the red coloring layer 41 through the contact hole provided in the interlayer insulating film 26, and the transparent electrode 52 is formed as the interlayer insulating film. From the drain 122 through the contact hole provided in
2 is formed so as to extend over the green coloring layer 42, and the transparent electrode 53 covers the blue coloring layer 43 from the drain 132 to the blue coloring layer 43 through a contact hole provided in the interlayer insulating film 26. Thus, the substrate 2 was formed by extending.

Next, a liquid crystal to which a white dichroic dye was added was sandwiched between the substrate 1 and the substrate 2 by a conventional method to prepare a positive type guest-host type liquid crystal panel 100.

When the voltage is not applied, red, green and blue are 3
The colors were mixed and a bright white display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT elements 110, 120 and 130, the corresponding display pixel became cloudy and the reflectance was low. A high-contrast, bright full-color display with a normally white display was obtained. It has a high resolution and can be used in portable personal computers. When used as a reflection type liquid crystal display device, light enters from the glass substrate 10 side. Further, the liquid crystal display device 100 of the present embodiment can also be used as a transmissive type, in which case light may be incident from any glass substrate side, but in order to reduce the influence of surface reflection and enhance contrast. For this reason, it is preferable that light is incident from the glass substrate 20 side.

In this embodiment, the transparent electrodes 51 and 5 are used.
2 and 53 are a red coloring layer 41, a green coloring layer 42,
Since it is provided on the blue coloring layer 43, the liquid crystal display device 10
The voltage applied to 0 can be reduced, and as a result, the drive voltage can be lowered, and the voltage can be accurately applied to the liquid crystal layer 3. In addition, the transparent electrodes 51, 52,
Since 53 is formed so as to cover the red coloring layer 41, the green coloring layer 42, and the blue coloring layer 43, respectively, they also serve as passivation of these coloring layers.

Further, in this embodiment, the glass substrate 2
TFTs 110, 120, 130 and a red coloring layer 4 on the 0 side
1, the green color developing layer 42 and the blue color developing layer 43 are provided, and the TFT is not provided on the glass substrate 10 side. Therefore, when a reflective liquid crystal display device is used, the TFTs 110 and 12 are provided.
0 and 130, the red coloring layer 41, the green coloring layer 42,
It is possible to prevent the amount of daylight incident on the blue coloring layer 43 from being attenuated and the amounts of light reflected from the red coloring layer 41, the green coloring layer 42, and the blue coloring layer 43 to be attenuated. Is possible.

(Embodiment 12) In Embodiment 11, C
An ink containing aSiO ₃ : Pb is used to form a red color developing layer 41 that appears red under daylight, and an ink containing Zn ₂ SiO ₄ : Mn is used to form a green color developing layer 4 that appears green under daylight.
2 was formed in a dot matrix shape on the interlayer insulating film 26 by using the ink containing ZnS: Ag to form the blue color-developing layers 43 that appear blue under daylight. In the present embodiment, the daylight fluorescent material is used. Eoine, Lumogen L Brilliant Yello
w, 3,6-tetramethyl diamino-N-methyl phthalimid is used as a raw material, three daylight fluorescent pigments are prepared, the pigments are dispersed in a varnish to form an ink, and offset printing is performed on the interlayer insulating film 26.
The coloring layers which are fixed by heating and appear red, yellow, and green under daylight are the coloring layer 41, the coloring layer 42, and the coloring layer 43, respectively. In the meantime, a liquid crystal added with a white dichroic dye is sandwiched by a conventional method to form a positive guest-host liquid crystal panel 10.
0 was produced, but in this example, the substrate 1 and the substrate 2 were
In the same manner as in Example 11, except that a negative guest-host type liquid crystal panel was produced by sandwiching a liquid crystal to which a black dichroic dye was added by a conventional method between the above and The method is the same.

When a voltage was applied to the liquid crystal layer 3 by the TFTs 110, 120 and 130, the color-forming layer of the corresponding display pixel was vividly colored, and when not applied, it was scattered black and had a low reflectance. A high-contrast bright multi-color display with a normally black display was obtained. It has a high resolution and can be used in portable personal computers.

In the present embodiment, since the coloring layers that look red, yellow, and green respectively under daylight are used, the color mixture of these does not become white, but the coloring layers that appear blue under daylight are used. In place of the above, since a coloring layer that looks yellow in daylight is used, the luminous efficiency of the entire liquid crystal display device 100 is high, and a bright liquid crystal display device is obtained.

(Embodiment 13) FIG. 12 is a schematic sectional view for explaining a liquid crystal display device of this embodiment.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10, a transparent electrode 14 formed on the main surface thereof, and a black matrix 15 provided on the transparent electrode 14, and the substrate 2 is the glass substrate 2
0 and a plurality of Ts formed in a matrix on the main surface thereof.
The FT 150 and a plurality of dot-shaped transparent electrodes 5 which are respectively connected to the plurality of TFTs 150 and are formed in a matrix.
5 and a coloring layer 45 formed under each of the plurality of transparent electrodes 55.

The TFT 150 has a source 151 and a drain 1
52 and a gate electrode 153. The TFT 150 is covered with the interlayer insulating film 26 made of SiO ₂ . The source 151 is connected to the source electrode 154 through a contact hole provided in the interlayer insulating film 26. The drain 152 is connected to the transparent electrode 55 via a contact hole provided in the interlayer insulating film 26.
The coloring layer 45 is formed on the interlayer insulating film 26, and is formed on the transparent electrode 5
Covered by 5. The black matrix 15 is
It is provided on a region where the coloring layer 45 is not provided.

First, ITO was formed on the glass substrate 10 by the sputtering method to form the transparent electrode 14. Next, the black matrix 15 was selectively formed on the transparent electrode to form the substrate 1.

Next, 1920 × 1200 TFTs 150 using polysilicon were formed in a matrix on the glass substrate 20. After that, the interlayer insulating film 2 covering the TFT 150
6 was formed. Next, using ink containing ZnO: Zn, 19 dots with a size of 300 μm × 100 μm were formed.
20 × 1200 pieces Interlayer insulating film 2 selectively in matrix form
6 was offset printed. After that, it was dried and fixed, and a coloring layer 45 which appeared white green in daylight was formed on the interlayer insulating film 26 in a dot matrix form.

Next, the surface of the source 151 and the drain 15
Contact holes each reaching the surface of No. 2 were selectively formed in the interlayer insulating film 26. Next, the source electrode 15
4 was formed by connecting to the source 151 through a contact hole provided in the interlayer insulating film 26. In addition, the transparent electrode 55 is formed so as to extend from the drain 152 to the color forming layer 45 so as to cover the color forming layer 45 through the contact hole provided in the interlayer insulating film 26, thereby forming the substrate 2.

Next, a liquid crystal containing a white dichroic dye was sandwiched between the substrate 1 and the substrate 2 by a conventional method to prepare a positive guest-host liquid crystal panel 100.

When no voltage was applied, white-green display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT element 150, the corresponding display pixel became cloudy and the reflectance was low. A high contrast bright black and white display of a normally white display was obtained. The resolution was also high. When used as a reflection type liquid crystal display device, light enters from the glass substrate 10 side. Further, the liquid crystal display device 100 of this embodiment can also be used as a transmissive type, in which case light may be incident from any substrate side, but in order to reduce the influence of surface reflection and enhance the contrast. It is preferable that the light be incident from the glass substrate 20 side.

In this embodiment, since the transparent electrode 55 is provided on the coloring layer 45, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered and the liquid crystal The voltage can be applied to layer 3 accurately. Further, since the transparent electrode 55 is formed so as to cover the coloring layer 45, it also plays a role of passivation of the coloring layer 45.

(Embodiment 14) FIG. 13 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10, a transparent electrode 14 formed on the main surface thereof, and a black matrix 15 provided on the transparent electrode 14, and the substrate 2 is the glass substrate 2
0 and a plurality of Ts formed in a matrix on the main surface thereof.
The FT 150, the interlayer insulating film 26 formed so as to cover the TFT 150, the fluorescent substance-dispersed polyimide film 27 on which the daylight fluorescent substance is dispersed and which is formed on the interlayer insulating film 26, and connected to a plurality of TFTs 150 to emit fluorescence. A plurality of dot-shaped transparent electrodes 55 formed in a matrix on the substance-dispersed polyimide film 27.

The TFT 150 has a source 151 and a drain 1
52 and a gate electrode 153. The TFT 150 is covered with an interlayer insulating film 26 made of SiO ₂ and a fluorescent substance-dispersed polyimide film 27. The source 151 is connected to the source electrode 154 through a contact hole provided in the interlayer insulating film 26. The drain 152 is connected to the transparent electrode 55 through a contact hole formed in the interlayer insulating film 26 and the fluorescent substance-dispersed polyimide film 27. The black matrix 15 is the transparent electrode 5
5 is provided on a region not provided on the fluorescent substance-dispersed polyimide film 27.

First, ITO was formed on the glass substrate 10 by the sputtering method to form the transparent electrode 14. Next, the black matrix 15 was selectively formed on the transparent electrode to form the substrate 1.

Next, 1920 × 1200 TFTs 150 using polysilicon were formed in a matrix on the glass substrate 20. After that, the interlayer insulating film 2 covering the TFT 150
6 was formed. Next, a contact hole reaching the surface of the source 151 is selectively formed in the interlayer insulating film 26, and the source electrode 154 is formed by being connected to the source 151 via the contact hole provided in the interlayer insulating film 26. . Next, a polyimide film 27 having ZnO: Zn, which is a daylight fluorescent substance, dispersed therein was formed on the interlayer insulating film 26. After that, a contact hole reaching the surface of the drain 152 was selectively formed in the interlayer insulating film 26 and the fluorescent substance-dispersed polyimide film 27. Next, the transparent electrode 55 is extended from the drain 152 onto the fluorescent substance-dispersed polyimide film 27 through a contact hole provided in the interlayer insulating film 26 and the fluorescent substance-dispersed polyimide film 27, and the transparent electrode 55 is 300 μm thick.
The dot-shaped transparent electrode 55 with a size of 100 μm
20 × 1200 pieces were selectively formed in a matrix on the fluorescent material-dispersed polyimide film 27 to form a substrate 2.

Next, a liquid crystal to which a white dichroic dye was added was sandwiched between the substrate 1 and the substrate 2 by a conventional method to produce a positive guest-host type liquid crystal panel 100.

When no voltage was applied, white-green display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT element 150, the corresponding display pixel became cloudy and the reflectance was low. A high contrast bright black and white display of a normally white display was obtained. The resolution was also high. When used as a reflection type liquid crystal display device, light enters from the glass substrate 10 side. Further, the liquid crystal display device 100 of the present embodiment can also be used as a transmissive type, in which case light may be incident from any substrate side, but in order to reduce the influence of surface reflection and increase the contrast. It is preferable that light is incident from the glass substrate 20 side.

In this embodiment, since the transparent electrode 55 is provided on the fluorescent substance-dispersed polyimide film 27, the voltage applied to the liquid crystal display device 100 can be reduced,
As a result, the driving voltage can be lowered and the voltage can be accurately applied to the liquid crystal layer 3. Further, since the fluorescent substance-containing polyimide film 27 in which the daylight fluorescent substance is dispersed is used, this film can serve as an interlayer film and a light emitting layer.

Example 15 FIG. 14 is a schematic sectional view for explaining a liquid crystal display device of this example.

In the present embodiment, the reflective electrodes 61, 62 and 63 made of Al are used as the red color developing layer 41 and the green color developing layer 4 respectively.
2. The point different from the eleventh embodiment in that it is further provided between the blue coloring layer 43 and the interlayer insulating film 26, but the other points are the same and the manufacturing method is also the same. The reflective electrodes 61, 62, 63 made of Al were produced by sputtering Al and then selectively removing it in a dot matrix form by photoetching.

When voltage is not applied, red, green, and blue are 3
The colors were mixed and a bright white display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT elements 110, 120 and 130, the corresponding display pixel became cloudy and the reflectance was low. A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this embodiment, the reflective electrodes 61, 62 and 63 made of Al are used as the red coloring layer 41 and the green coloring layer 4 respectively.
2. Since it is further provided between the blue color developing layer 43 and the interlayer insulating film 26, the red color developing layer 41 and the green color developing layer 4 are provided.
2. The effective reflectance of the blue coloring layer 43 was increased, and a brighter display was obtained.

Also in this embodiment, the transparent electrode 5 is used.
Since 1, 52, and 53 are provided on the red coloring layer 41, the green coloring layer 42, and the blue coloring layer 43, respectively, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered. Moreover, the voltage can be accurately applied to the liquid crystal layer 3. In addition, the transparent electrode 51,
52 and 53 are the red coloring layer 41 and the green coloring layer 4, respectively.
2. Since it is formed so as to cover the blue coloring layer 43, it also serves as a passivation of these coloring layers.

(Example 16) In Example 15, C
An ink containing aSiO ₃ : Pb is used to form a red color developing layer 41 that appears red under daylight, and an ink containing Zn ₂ SiO ₄ : Mn is used to form a green color developing layer 4 that appears green under daylight.
2 using a ZnS: Ag ink to form blue coloring layers 43 that appear blue in daylight under the reflection electrodes 61, 6 respectively.
In the present embodiment, the daylight fluorescent substances Eoine and Lumogen L Brillia were formed on the Nos. 2, 63 in the form of a dot matrix.
nt Yellow, 3,6-tetramethyl diamino-N-methyl phthalimid is used as a raw material, and three daylight fluorescent pigments are prepared. The pigments are dispersed in a varnish to form an ink on the reflective electrodes 61, 62 and 63. The offset printing, the heating and fixing, and the red, yellow, and green color-developing layers, which are visible under daylight, are the color-developing layer 41, the color-developing layer 42, and the color-developing layer 43, respectively. Between the substrate and the substrate 2
A positive type guest-host type liquid crystal panel 100 was manufactured by sandwiching a liquid crystal containing a chromatic dye by a conventional method. In the present embodiment, a black dichroic dye is provided between the substrate 1 and the substrate 2. The liquid crystal added with is sandwiched by a conventional method to produce a negative guest-host type liquid crystal panel, which is different from Example 15, but the other points are the same and the manufacturing method is also the same.

When a voltage was applied to the liquid crystal layer 3 by the TFTs 110, 120 and 130, the coloring layer of the corresponding display pixel was vividly colored, and when not applied, it was scattered black and had a low reflectance. A high-contrast bright multi-color display with a normally black display was obtained. The resolution was also high.

In this embodiment, since the coloring layers that look red, yellow, and green respectively under daylight are used, the color mixture of these does not become white, but the coloring layers that look blue under daylight are used. In place of the above, since a coloring layer that looks yellow in daylight is used, the luminous efficiency of the entire liquid crystal display device 100 is high, and a bright liquid crystal display device is obtained.

(Embodiment 17) FIG. 15 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

The present embodiment is different from the twelfth embodiment in that a reflective electrode 65 made of Al is further provided between the coloring layer 45 and the interlayer insulating film 26, but the other points are the same and the manufacturing method is also the same. Is. The reflective electrode 65 made of Al
Was manufactured by sputtering Al and then selectively removing it in a dot matrix form by photoetching.

When no voltage was applied, white-green display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT element 150, the corresponding display pixel became cloudy and the reflectance was low. A high contrast bright black and white display of a normally white display was obtained. The resolution was also high.

In this embodiment, since the reflective electrode 65 made of Al is further provided between the color forming layer 45 and the interlayer insulating film 26, the effective reflectivity of the color forming layer 45 is increased and a brighter display is obtained. was gotten.

Further, in this embodiment, the transparent electrode 55
Is provided on the coloring layer 45, the liquid crystal display device 100
It is possible to reduce the voltage applied to the liquid crystal display device, as a result, it is possible to reduce the drive voltage, and it is possible to accurately apply the voltage to the liquid crystal layer 3. In addition, the transparent electrode 55 is connected to the coloring layer 4
Since it is formed so as to cover 5, the color developing layer 45 also plays a role of passivation.

(Embodiment 18) FIG. 16 is a schematic sectional view for explaining a liquid crystal display device of this embodiment.

In the fifteenth embodiment, the transparent electrodes 51, 52 and 53 made of ITO are used as the TFTs 110, 120 and 13, respectively.
0 drains 112, 122, 132 to the interlayer insulating film 2
In the present embodiment, the reflective electrodes 61, 62, 63 made of Al are formed on the TFTs.
The drains 112, 122, 1 of 110, 120, 130
32 is different from that of the fifteenth embodiment in that it is formed by extending from 32 onto the interlayer insulating film 26, respectively, but other points are the same and the manufacturing method is also the same.

When voltage is not applied, red, green and blue are 3
The colors were mixed and a bright white display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT elements 110, 120 and 130, the corresponding display pixel became cloudy and the reflectance was low. A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

(Embodiment 19) FIG. 17 is a schematic sectional view for explaining a liquid crystal display device of this embodiment.

In this embodiment, the reflective electrodes 61, 62 and 63 made of Al are formed so as to cover the TFTs 110, 120 and 130, and the black matrix 24 is provided not on the substrate 1 side but on the substrate 2. It is different from Example 18 in that it is formed on the side, but the other points are the same and the manufacturing method is also the same.

When no voltage is applied, red, green, and blue are 3
The colors were mixed and a bright white display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT elements 110, 120 and 130, the corresponding display pixel became cloudy and the reflectance was low. A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this embodiment, since the reflective electrodes 61, 62 and 63 made of Al are formed so as to cover the TFTs 110, 120 and 130, the aperture ratio is increased and a brighter display can be obtained.

(Embodiment 20) FIG. 18 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

In this embodiment, the reflective electrode 65 made of Al is used as the fluorescent substance-dispersed polyimide layer 27 and the interlayer insulating film 2.
6 is different from Example 14 in that it is further provided between No. 6 and 6, and the other points are the same and the manufacturing method is also the same. The reflective electrode 65 made of Al was produced by sputtering Al and then selectively removing it in a dot matrix form by photoetching.

When no voltage was applied, white-green display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT element 150, the corresponding display pixel became cloudy and the reflectance was low. A high contrast bright black and white display of a normally white display was obtained. The resolution was also high.

In the present embodiment, the reflective electrode 65 made of Al is used as the fluorescent substance-dispersed polyimide layer 27 and the interlayer insulating film 2.
6 is further provided, the effective reflectance of the coloring layer 27 is increased and a brighter display is obtained.

Further, in this embodiment, the transparent electrode 55
Is provided on the fluorescent substance-dispersed polyimide layer 27,
The voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the drive voltage can be reduced, and the voltage can be accurately applied to the liquid crystal layer 3.

(Embodiment 21) FIG. 19 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

The present embodiment is different from the eleventh embodiment in that the area of the blue coloring layer 43 is made larger than the areas of the red coloring layer 41 and the green coloring layer 42, but the other points are the same and the manufacturing method is the same. Is also the same.

When voltage is not applied, red, green and blue are 3
The colors were mixed and a bright white display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT elements 110, 120 and 130, the corresponding display pixel became cloudy and the reflectance was low. A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this embodiment, since the area of the blue coloring layer 43 is larger than the areas of the red coloring layer 41 and the green coloring layer 42, the three colors can be balanced and an excellent full color can be obtained. Display quality is obtained.

Also in this embodiment, the transparent electrode 5 is used.
Since 1, 52, and 53 are provided on the red coloring layer 41, the green coloring layer 42, and the blue coloring layer 43, respectively, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered. You can In addition, the transparent electrode 5
Since 1, 52, and 53 are formed so as to cover the red coloring layer 41, the green coloring layer 42, and the blue coloring layer 43, respectively, they also serve as passivation of these coloring layers.

(Embodiment 22) FIG. 20 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

In this embodiment, the area of the blue coloring layer 43 is made larger than the areas of the red coloring layer 41 and the green coloring layer 42, and the area of the reflection layer 63 below the blue coloring layer 43 is changed to another reflection area. It differs from the fifteenth embodiment in that the area of the layers 61 and 62 is made larger, but the other points are the same and the manufacturing method is also the same.

When voltage is not applied, red, green and blue are 3
The colors were mixed and a bright white display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT elements 110, 120 and 130, the corresponding display pixel became cloudy and the reflectance was low. A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this embodiment, since the area of the blue coloring layer 43 is larger than the areas of the red coloring layer 41 and the green coloring layer 42, the three colors can be balanced and an excellent full color can be obtained. Display quality is obtained.

In this embodiment, the reflective electrodes 61, 62 and 63 made of Al are used as the red coloring layer 41 and the green coloring layer 4 respectively.
2. Since it is further provided between the blue color developing layer 43 and the interlayer insulating film 26, the red color developing layer 41 and the green color developing layer 4 are provided.
2. The effective reflectance of the blue coloring layer 43 was increased, and a brighter display was obtained.

Also in this embodiment, the transparent electrode 5 is used.
Since 1, 52, and 53 are provided on the red coloring layer 41, the green coloring layer 42, and the blue coloring layer 43, respectively, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered. Moreover, the voltage can be accurately applied to the liquid crystal layer 3. In addition, the transparent electrode 51,
52 and 53 are the red coloring layer 41 and the green coloring layer 4, respectively.
2. Since it is formed so as to cover the blue coloring layer 43, it also serves as a passivation of these coloring layers.

(Embodiment 23) FIG. 21 is a schematic sectional view for explaining a liquid crystal display device of this embodiment.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10, a plurality of TFTs 16, 17, and 18 formed in a matrix on the main surface thereof, and a plurality of dot-like dots formed in a matrix by connecting to the plurality of TFTs 16, 17, and 18, respectively. Transparent electrodes 31, 3
2 and 33, the substrate 2 is a glass substrate 20,
Transparent electrode 3 formed on the glass substrate 10 on its main surface
1. A plurality of dot-shaped red color-developing layers 41 and green color-developing layers 4 which are respectively formed in a matrix corresponding to 1, 32, and 33.
2, blue coloring layer 43, red coloring layer 41, green coloring layer 4
2 and the black matrix 54 provided on the main surface of the glass substrate 20 on which the blue coloring layer 43 is not provided;
A transparent electrode 57 provided on the red coloring layer 41, the green coloring layer 42, the blue coloring layer 43, and the black matrix 54.
It has and.

First, the TFTs 16 and 1 are provided on the glass substrate 10.
640 × 400 pieces of Nos. 7 and 18 were formed in a matrix. After that, ITO for display pixels is formed by the sputtering method, and the transparent electrodes 31, 32, and
Substrate 1 was prepared by selectively forming 640 × 400 33 pieces in a dot matrix.

Next, daylight fluorescent substances Eoine and Brilliantsulf
Three daylight fluorescent pigments of three colors were prepared by using oflavine FF, 3,6-tetramethyldiamino-N-methylphthalimid and a small amount of a light absorber. The pigment is dispersed in a varnish to form an ink, which is 300 μm × 100 on the glass substrate 20 so as to overlap with the transparent electrodes 31, 32 and 33 which are the display pixels of the substrate 1.
Offset printing was performed in a dot matrix with a size of μm. The color forming layer was formed at 640 × 400 locations for each color. Heated and fixed, red under daylight,
A red coloring layer 41 that looks green and blue, a green coloring layer 42,
The blue coloring layers 43 were formed respectively. After that, the black matrix 54 was formed on the glass substrate 20 on which the red coloring layer 41, the green coloring layer 42, and the blue coloring layer 43 were not provided. After that, ITO is formed on the red coloring layer 41, the green coloring layer 42, the blue coloring layer 43 and the black matrix 54.
The transparent electrode 57 was formed by the sputtering method to form the substrate 2.

Next, a liquid crystal to which a white dichroic dye was added was sandwiched between the substrate 1 and the substrate 2 by a conventional method to produce a positive guest-host type liquid crystal panel 100.

When voltage is not applied, red, green and blue are 3
The colors were mixed and a bright white display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT elements 16, 17, and 18, the corresponding display pixels became cloudy and the reflectance was low.
A high-contrast, bright full-color display with a normally white display was obtained. It has a high resolution and can be used in portable personal computers. When used as a reflection type liquid crystal display device, light enters from the glass substrate 10 side. Further, the liquid crystal display device 100 of this embodiment can be used as a transmissive type,
In that case, light may be incident from any substrate side,
In order to reduce the influence of surface reflection and increase the contrast, it is preferable that light be incident from the glass substrate 20 side.

In the present embodiment, since the transparent electrode 57 is provided on the red coloring layer 41, the green coloring layer 42, and the blue coloring layer 43, the voltage applied to the liquid crystal display device 100 can be reduced, and As a result, the driving voltage can be lowered and the voltage can be accurately applied to the liquid crystal layer 3. Further, since the transparent electrode 57 is formed on the entire surface of the red color-developing layer 41, the green color-developing layer 42, and the blue color-developing layer 43, it also plays a role of passivation of these color-developing layers.

(Example 24) In Example 23, the daylight fluorescent material Eoine, Brilliantsulfoflavine FF and 3,6-tetramethyldiamino-N-methylphthalimid are used to produce a red coloring layer 41 which looks red under daylight. And a green color developing layer 42 that looks green under daylight and a blue color developing layer 43 that looks blue under daylight are formed. In the present embodiment, the daylight phosphors Eoine and Lum are formed.
ogen L Brilliant Yellow, 3,6-tetramethyldiamino-N-methylphthalimid, as raw materials, three daylight fluorescent pigments were prepared, and the pigments were dispersed in a varnish to form an ink.
In the example 23, the substrate was offset-printed on top, heated and fixed, and the coloring layers that looked red, yellow, and green under daylight were the coloring layer 41, the coloring layer 42, and the coloring layer 43, respectively. A liquid crystal having a white dichroic dye added was sandwiched between 1 and the substrate 2 by a conventional method to prepare a positive guest-host type liquid crystal panel 100. The difference between Example 23 and Example 23 is that a liquid crystal to which a black dichroic dye is added is sandwiched by a conventional method to produce a negative guest-host liquid crystal panel, but the other points are the same. The manufacturing method is also the same.

When a voltage was applied to the liquid crystal layer 3 by the TFTs 16, 17 and 18, the color-developing layer of the corresponding display pixel was vividly colored, and when not applied, it was scattered black and had a low reflectance. A high-contrast bright multi-color display with a normally black display was obtained. It has a high resolution and can be used in portable personal computers.

In the present embodiment, since the coloring layers that look red, yellow, and green respectively under daylight are used, the color mixture of these does not become white, but the coloring layers that appear blue under daylight are used. In place of the above, since a coloring layer that looks yellow in daylight is used, the luminous efficiency of the entire liquid crystal display device 100 is high, and a bright liquid crystal display device is obtained.

(Embodiment 25) FIG. 22 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

This example is different from Example 23 in that a reflective layer 66 is further provided between the red color developing layer 41, the green color developing layer 42, the blue color developing layer 43 and the glass substrate 20, but the other points are the same. The same applies to the manufacturing method. The reflective layer 66 was prepared by applying an ink containing a white pigment of titanium oxide on the entire main surface of the glass substrate 20 and heating and fixing.

When voltage is not applied, red, green, and blue are 3
The colors were mixed and a bright white display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT elements 16, 17, and 18, the corresponding display pixels became cloudy and the reflectance was low.
A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this embodiment, since the reflective layer 66 is provided between the red color developing layer 41, the green color developing layer 42, the blue color developing layer 43 and the glass substrate 20, the red color developing layer 41, the green color developing layer 42, The effective reflectance of the blue coloring layer 43 was increased, and a brighter display was obtained.

Also in this embodiment, the transparent electrode 57 is used.
Are provided on the red coloring layer 41, the green coloring layer 42, and the blue coloring layer 43, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered, and the liquid crystal layer It is possible to accurately apply the voltage to 3. Further, since the transparent electrode 57 is formed on the entire surface of the red color-developing layer 41, the green color-developing layer 42, and the blue color-developing layer 43, it also plays a role of passivation of these color-developing layers.

(Example 26) FIG. 22 is a schematic sectional view for explaining a liquid crystal display device of the present example.

This example is different from Example 24 in that a reflecting layer 66 was further provided between the coloring layer 41, the coloring layer 42, and the coloring layer 43 and the glass substrate 20, but the other points are the same. The manufacturing method is also the same. The reflective layer 66 was prepared by applying an ink containing a white pigment of titanium oxide onto the main surface of the glass substrate 20 and heating and fixing it.

When a voltage was applied to the liquid crystal layer 3 by the TFTs 16, 17 and 18, the color forming layer of the corresponding display pixel clearly developed color, and when not applied, it was scattered black and the reflectance was low. A high-contrast bright multi-color display with a normally black display was obtained. It has a high resolution and can be used in portable personal computers.

In the present embodiment, since the coloring layers which look red, yellow and green respectively under daylight are used, the color mixture of these does not become white, but the coloring layers which look blue under daylight are used. In place of the above, since a coloring layer that looks yellow in daylight is used, the luminous efficiency of the entire liquid crystal display device 100 is high, and a bright liquid crystal display device is obtained.

In this embodiment, since the reflecting layer 66 is provided between the coloring layer 41, the coloring layer 42, and the coloring layer 43 and the glass substrate 20, the coloring layer 41, the coloring layer 42, and the coloring layer 4 are provided.
The effective reflectance by 3 was increased, and a brighter display was obtained.

Also in this embodiment, the transparent electrode 57 is used.
Is provided on the color-developing layer 41, the color-developing layer 42, and the color-developing layer 43, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the drive voltage can be lowered, and the liquid crystal layer 3 can be accurately adjusted. A voltage can be applied to. In addition, the transparent electrode 57 is used as the coloring layer 41, the coloring layer 42, and the coloring layer 4
Since it is formed on the entire surface of No. 3, it also plays a role of passivation of these coloring layers.

(Embodiment 27) FIG. 23 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

In Example 25, the red coloring layer 41,
Although the reflective layer 66 between the green coloring layer 42, the blue coloring layer 43 and the glass substrate 20 is provided on the entire main surface of the glass substrate 20, in the present embodiment, the red coloring layer 41 and the glass substrate 20 are mainly formed. The dot-shaped reflecting layer 67 is provided between the blue coloring layer 43 and the main surface of the glass substrate 20, and the dot-shaped reflecting layer 68 is provided between the green coloring layer 42 and the main surface of the glass substrate 20. A dot-shaped reflective layer 69 is provided between the two, and a laminated body of the red coloring layer 41 and the reflecting layer 67, a laminated body of the green coloring layer 42 and the reflecting layer 68, and a laminated body of the blue coloring layer 43 and the reflecting layer 69. The black matrix 54 is formed on the glass substrate 20 on which no body is provided, which is different from the twenty-fifth embodiment, but the other points are the same and the manufacturing method is also the same. The reflective layers 67, 68 and 69 are offset-printed with ink containing a white pigment of titanium oxide on the main surface of the glass substrate 20,
It was prepared by heating and fixing.

When no voltage is applied, red, green, and blue are 3
The colors were mixed and a bright white display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT elements 16, 17, and 18, the corresponding display pixels became cloudy and the reflectance was low.
A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this embodiment, the reflective layers 67, 68,
69 is a red coloring layer 41, a green coloring layer 42, a blue coloring layer 4
3 is provided between the glass substrate 20 and the glass substrate 20, respectively,
The effective reflectances of the red coloring layer 41, the green coloring layer 42, and the blue coloring layer 43 were increased, and a brighter display was obtained.

Also in this embodiment, the transparent electrode 57 is used.
Are provided on the red coloring layer 41, the green coloring layer 42, and the blue coloring layer 43, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered, and the liquid crystal layer It is possible to accurately apply the voltage to 3. Further, since the transparent electrode 57 is formed on the entire surface of the red color-developing layer 41, the green color-developing layer 42, and the blue color-developing layer 43, it also plays a role of passivation of these color-developing layers.

(Embodiment 28) FIG. 24 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10, a plurality of TFTs 19 formed in a matrix on the main surface thereof, and a plurality of TFTs 19.
Is provided with a plurality of dot-shaped transparent electrodes 34 connected to each other in a matrix, and the substrate 2 is formed in a matrix in correspondence with the glass substrate 20 and the transparent electrodes 34 on the main surface thereof. A plurality of dot-shaped coloring layers 45 and a glass substrate 20 on which the coloring layers 45 are not provided
And a transparent electrode 57 provided on the color-developing layer 45 and the black matrix 54.

First, one TFT 19 is formed on the glass substrate 10.
920 × 1200 pieces were formed in a matrix. After that, ITO for display pixels is formed by a sputtering method, and 1920 × 1200 transparent electrodes 34 are selectively formed in a dot matrix shape by photoetching.
And

Next, using an ink containing the daylight fluorescent substance ZnO: Zn, 300 μm × 100 is formed on the glass substrate 20 so as to overlap the transparent electrode 34 which is a display pixel of the substrate 1.
Dots having a size of μm were offset printed in a 1920 × 1200 dot matrix. After that, it was dried and fixed, and a coloring layer 45 which appeared white green in daylight was formed on the main surface of the glass substrate 20. Then, the coloring layer 45
The black matrix 54 was formed on the glass substrate 20 not provided with. The ITO transparent electrode 57 was formed on the color forming layer 45 and the black matrix 54 by the sputtering method to form the substrate 2.

Next, a liquid crystal containing a white dichroic dye was sandwiched between the substrate 1 and the substrate 2 by a conventional method to prepare a positive guest-host type liquid crystal panel 100.

When no voltage was applied, white-green display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT element 19, the corresponding display pixel became cloudy and the reflectance was low.
A high contrast bright black and white display of a normally white display was obtained. The resolution was also high. When used as a reflection type liquid crystal display device, light enters from the glass substrate 10 side. Further, the liquid crystal display device 100 of this embodiment can also be used as a transmissive type, in which case light may be incident from any substrate side, but in order to reduce the influence of surface reflection and enhance the contrast. It is preferable that the light be incident from the glass substrate 20 side.

In this embodiment, since the transparent electrode 57 is provided on the color forming layer 45, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered. In addition, the transparent electrode 57 is formed on the coloring layer 45.
Since it is formed on the entire upper surface, it also plays a role of passivation of these coloring layers.

(Embodiment 29) FIG. 25 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

This example is different from Example 28 in that a reflective layer 66 was further provided between the color forming layer 45 and the glass substrate 20, but the other points were the same and the manufacturing method was also the same. The reflective layer 66 was prepared by applying an ink containing a white pigment of titanium oxide on the entire main surface of the glass substrate 20 and heating and fixing.

[0230] White green display was obtained when no voltage was applied. When a voltage was applied to the liquid crystal layer 3 by the TFT element 19, the corresponding display pixel became cloudy and the reflectance was low.
A high contrast bright black and white display of a normally white display was obtained. The resolution was also high.

In this embodiment, since the reflective layer 66 is provided between the color-developing layer 45 and the glass substrate 20, the effective reflectance of the color-developing layer 45 is increased and a brighter display can be obtained.

Also in this embodiment, the transparent electrode 57 is used.
Is provided on the coloring layer 45, the liquid crystal display device 100
It is possible to reduce the voltage applied to the liquid crystal display device, as a result, it is possible to reduce the drive voltage, and it is possible to accurately apply the voltage to the liquid crystal layer 3. In addition, the transparent electrode 57 is connected to the coloring layer 4
Since it is formed on the entire surface on 5, the color developing layer 45 also serves as passivation.

(Embodiment 30) FIG. 26 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

In this embodiment, the area of the blue coloring layer 43 is made larger than the areas of the red coloring layer 41 and the green coloring layer 42, and the area of the transparent electrode 33 corresponding to the blue coloring layer 43 is different. The transparent electrode 31 and the transparent electrode 32 are different from Example 23 in that they are made larger, but the other points are the same and the manufacturing method is also the same.

When no voltage is applied, red, green, and blue are 3
The colors were mixed and a bright white display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT elements 16, 17, and 18, the corresponding display pixels became cloudy and the reflectance was low.
A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this embodiment, the area of the blue coloring layer 43 is made larger than the areas of the red coloring layer 41 and the green coloring layer 42, and the area of the transparent electrode 33 corresponding to the blue coloring layer 43 is made transparent. Since the electrodes 31 and 32 are made larger than the transparent electrodes, the three colors can be balanced and excellent full-color display quality can be obtained.

Also in this embodiment, since the transparent electrode 57 is provided on the red coloring layer 41, the green coloring layer 42, and the blue coloring layer 43, the voltage applied to the liquid crystal display device 100 can be reduced, and As a result, the driving voltage can be lowered and the voltage can be accurately applied to the liquid crystal layer 3. Further, since the transparent electrode 57 is formed on the entire surface of the red color-developing layer 41, the green color-developing layer 42, and the blue color-developing layer 43, it also plays a role of passivation of these color-developing layers.

(Embodiment 31) FIG. 27 is a schematic sectional view for explaining the liquid crystal display device of the present embodiment.

In this embodiment, the area of the blue coloring layer 43 is larger than the areas of the red coloring layer 41 and the green coloring layer 42, and the area of the transparent electrode 33 corresponding to the blue coloring layer 43 is different. The transparent electrode 31 and the transparent electrode 32 are different from Example 25 in that they are larger than the transparent electrodes, but the other points are the same and the manufacturing method is also the same.

When no voltage is applied, red, green, and blue are 3
The colors were mixed and a bright white display was obtained. When a voltage was applied to the liquid crystal layer 3 by the TFT elements 16, 17, and 18, the corresponding display pixels became cloudy and the reflectance was low.
A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this embodiment, the area of the blue coloring layer 43 is made larger than the areas of the red coloring layer 41 and the green coloring layer 42, and the area of the transparent electrode 33 corresponding to the blue coloring layer 43 is made transparent. Since the electrodes 31 and 32 are made larger than the transparent electrodes, the three colors can be balanced and excellent full-color display quality can be obtained.

In this embodiment, since the reflective layer 66 is provided between the red color developing layer 41, the green color developing layer 42, the blue color developing layer 43 and the glass substrate 20, the red color developing layer 41, the green color developing layer 42, The effective reflectance of the blue coloring layer 43 was increased, and a brighter display was obtained.

Also in this embodiment, since the transparent electrode 57 is provided on the red coloring layer 41, the green coloring layer 42 and the blue coloring layer 43, the voltage applied to the liquid crystal display device 100 can be reduced, As a result, the driving voltage can be lowered and the voltage can be accurately applied to the liquid crystal layer 3. Further, since the transparent electrode 57 is formed on the entire surface of the red color-developing layer 41, the green color-developing layer 42, and the blue color-developing layer 43, it also plays a role of passivation of these color-developing layers.

(Embodiment 32) FIG. 28 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10, a plurality of strip-shaped transparent electrodes 76, 77, 78 formed on the main surface thereof, and a transparent electrode 7.
The black matrix 74 is provided on the main surface of the glass substrate 10 on which the glass substrates 6, 77, and 78 are not provided, and the substrate 2 includes the glass substrate 20 and a plurality of matrixes formed on the main surface. MIM 210, 220, 230
A plurality of dot-shaped transparent electrodes 71, 72, 73 formed in a matrix by connecting to a plurality of MIMs 210, 220, 230, respectively, and a plurality of transparent electrodes 71, 72,
A red coloring layer 46, a green coloring layer 47, and a blue coloring layer 48, which are respectively formed under 73, are provided.

The MIM 210 includes the Ta layer 211 and the Ta layer 21.
1 is provided with an anodized film 212 formed by anodizing, and a Cr layer 213 formed on the anodized film 212.
The MIM 220 includes a Ta layer 221, an anodized film 222 formed by anodizing the Ta layer 221, and a Cr layer 223 formed on the anodized film 222. MIM230
Comprises a Ta layer 231, an anodized film 232 formed by anodizing the Ta layer 231, and a Cr layer 233 formed on the anodized film 232. Transparent electrodes 71, 72, 73
Are formed to extend on the Cr layers 213, 223 and 233, respectively. The red coloring layer 46, the green coloring layer 47, and the blue coloring layer 48 are formed on the main surface of the glass substrate 20, and are covered with transparent electrodes 71, 72, 73, respectively. The black matrix 74 is provided on a region where the red coloring layer 46, the green coloring layer 47, and the blue coloring layer 48 are not provided.

First, ITO was formed on the glass substrate 10 by the sputtering method, and a plurality of transparent electrodes 76, 77, 78 having a band shape were formed by photoetching. After that, the black matrix 74 was formed on the main surface of the glass substrate 10 on which the transparent electrodes 76, 77 and 78 were not provided, to obtain the substrate 1.

Next, on the glass substrate 20, the MIM 210, 2
640 × 400 pieces of each of 20 and 230 were formed in a matrix. Next, using the ink containing CaSiO ₃ : Pb, the glass substrate 2 is selectively formed into a matrix of 640 × 400 dots of 300 μm × 100 μm.
Offset printing is performed on the glass substrate 20 using an ink containing Zn ₂ SiO ₄ : Mn, and 640 × 400 dots having a size of 300 μm × 100 μm are selectively printed on the glass substrate 20 in a matrix form. : 640 × 400 dots having a size of 300 μm × 100 μm were selectively offset-printed on the glass substrate 20 in a matrix using an ink containing Ag. After that, it is dried and fixed, and a red coloring layer 46 that looks red under daylight, a green coloring layer 47 that looks green under daylight, and a blue coloring layer 48 that looks blue under daylight are respectively formed on the glass substrate 20. It was formed in a matrix.

Next, ITO is formed on the entire surface of the substrate 20 by the sputtering method, and the Cr layer 21 is formed by photoetching.
3, 223, 233 on the red coloring layer 46, the green coloring layer 47, the blue coloring layer 48 on the red coloring layer 46, the green coloring layer 47, and the blue coloring layer 48, respectively. The transparent electrodes 71, 72, 73 were respectively formed to form the substrate 2.

Next, a liquid crystal to which a white dichroic dye was added was sandwiched between the substrate 1 and the substrate 2 by a conventional method to prepare a positive type guest-host type liquid crystal panel 100.

When no voltage is applied, red, green, and blue are 3
The colors were mixed and a bright white display was obtained. MIM2
When a voltage was applied to the liquid crystal layer 3 by 10, 220 and 230, the corresponding display pixel became cloudy and the reflectance was low.
A high-contrast, bright full-color display with a normally white display was obtained. It has a high resolution and can be used in portable personal computers. When used as a reflection type liquid crystal display device, light enters from the glass substrate 10 side. Further, the liquid crystal display device 100 of this embodiment can be used as a transmissive type,
In that case, light may be incident from any substrate side,
In order to reduce the influence of surface reflection and increase the contrast, it is preferable that light be incident from the glass substrate 20 side.

In this embodiment, the transparent electrodes 71, 7
2, 73 are the red coloring layer 46, the green coloring layer 47,
Since it is provided on the blue coloring layer 48, the liquid crystal display device 10
The voltage applied to 0 can be reduced, and as a result, the drive voltage can be lowered, and the voltage can be accurately applied to the liquid crystal layer 3. Further, the transparent electrodes 71, 72, 7
3 is formed so as to cover the red coloring layer 46, the green coloring layer 47, and the blue coloring layer 48, respectively, and therefore also plays a role of passivation of these coloring layers.

Further, in this embodiment, the glass substrate 2
MIM 210, 220, 230 and red coloring layer 4 on the 0 side
6, the green coloring layer 47 and the blue coloring layer 48 are provided, and the MIM is not provided on the glass substrate 10 side. Therefore, in the case of a reflective liquid crystal display device, the MIMs 210 and 22 are used.
0 and 230, the red coloring layer 46, the green coloring layer 47,
The amount of daylight incident on the blue coloring layer 48 is prevented from being attenuated, and the amounts of light reflected from the red coloring layer 46, the green coloring layer 47, and the blue coloring layer 48 are prevented from being attenuated. The liquid crystal display of is possible.

(Example 33) In Example 32, C
An ink containing aSiO ₃ : Pb is used to form a red coloring layer 46 that appears red under daylight, and an ink containing Zn ₂ SiO ₄ : Mn is used to form a green coloring layer 4 that appears green under daylight.
7 was formed in a dot matrix shape on the glass substrate 20 by using the ink containing ZnS: Ag to form the blue coloring layers 48 that appear blue under daylight. In the present embodiment, the daylight fluorescent substance Eoine is used. , Lumogen L Brilliant Yello
w, 3,6-tetramethyl diamino-N-methyl phthalimid is used as a raw material, three daylight fluorescent pigments are prepared, the pigments are dispersed in a varnish to form an ink, and offset printing is performed on the glass substrate 20.
It is heated and fixed, and the coloring layers that look red, yellow, and green under daylight are colored layers 46, 47, and 48, respectively. In the meantime, a liquid crystal added with a white dichroic dye is sandwiched by a conventional method to form a positive guest-host liquid crystal panel 10.
0 was produced, but in this example, the substrate 1 and the substrate 2 were
In the same manner as in Example 32, a negative guest-host type liquid crystal panel was produced by sandwiching a liquid crystal to which a black dichroic dye was added by a conventional method between the above and the other points. The method is the same.

When a voltage was applied to the liquid crystal layer 3 by the MIMs 210, 220 and 230, the color forming layer of the corresponding display pixel was vividly colored, and when not applied, it was scattered black and the reflectance was low. A high-contrast bright multi-color display with a normally black display was obtained. It has a high resolution and can be used in portable personal computers.

In this embodiment, since the color forming layers that look red, yellow, and green under daylight are used, the color mixture does not become white, but the color forming layers that appear blue under daylight are used. In place of the above, since a coloring layer that looks yellow in daylight is used, the luminous efficiency of the entire liquid crystal display device 100 is high, and a bright liquid crystal display device is obtained.

(Embodiment 34) FIG. 29 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10, a plurality of belt-shaped transparent electrodes 79 formed on the main surface thereof, and a black matrix 74 provided on the main surface of the glass substrate 10 on which the transparent electrodes 79 are not provided. And the substrate 2 is the glass substrate 2
0 and a plurality of Ms formed in a matrix on its main surface
IM250 and a plurality of dot-shaped transparent electrodes 7 which are respectively connected to the plurality of MIM250 and are formed in a matrix.
5 and a coloring layer 49 formed under each of the plurality of transparent electrodes 75.

The MIM 250 includes the Ta layer 251 and the Ta layer 25.
1 is provided with an anodized film 252 formed by anodizing, and a Cr layer 253 formed on the anodized film 252.
The transparent electrodes 75 are formed so as to extend on the Cr layer 253. The coloring layer 49 is formed on the main surface of the glass substrate 20 and is covered with the transparent electrodes 75.
The black matrix 74 is provided on a region where the coloring layer 49 is not provided.

First, ITO was formed on the glass substrate 10 by the sputtering method, and a plurality of band-shaped transparent electrodes 79 were formed by photoetching. After that, the black matrix 74 was formed on the main surface of the glass substrate 10 on which the transparent electrode 79 was not provided, to obtain the substrate 1.

Next, 1920 × 1200 MIMs 250 were formed in a matrix on the glass substrate 20.
Next, using an ink containing ZnO: Zn,
Dot with a size of m × 100μm 1920 × 1200
Offset printing was selectively performed on the glass substrate 20 in a matrix form. After that, it was dried and fixed, and a coloring layer 49 which appeared white green under daylight was formed on the glass substrate 20 in a dot matrix form.

Next, ITO is formed on the entire surface of the substrate 20 by the sputtering method, and the Cr layer 25 is formed by photoetching.
The transparent electrode 75 was formed in a shape extending from above 3 onto the coloring layer 49 so as to cover the coloring layer 49, and the substrate 2 was obtained.

Next, a liquid crystal containing a white dichroic dye was sandwiched between the substrate 1 and the substrate 2 by a conventional method to prepare a positive guest-host type liquid crystal panel 100.

When no voltage was applied, white green was displayed. When a voltage was applied to the liquid crystal layer 3 by the MIM250, the corresponding display pixel became cloudy and the reflectance was low.
A high contrast bright black and white display of a normally white display was obtained. The resolution was also high. When used as a reflection type liquid crystal display device, light enters from the glass substrate 10 side. Further, the liquid crystal display device 100 of this embodiment can also be used as a transmissive type, in which case light may be incident from any substrate side, but in order to reduce the influence of surface reflection and enhance the contrast. It is preferable that the light be incident from the glass substrate 20 side.

In this embodiment, since the transparent electrode 75 is provided on the coloring layer 49, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered and the liquid crystal The voltage can be applied to layer 3 accurately. Further, since the transparent electrode 75 is formed so as to cover the coloring layers 49, it also plays a role of passivation of these coloring layers.

(Embodiment 35) FIG. 30 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10, a plurality of belt-shaped transparent electrodes 79 formed on the main surface thereof, and a black matrix 74 provided on the main surface of the glass substrate 10 on which the transparent electrodes 79 are not provided. And the substrate 2 is the glass substrate 2
0 and a plurality of Ms formed in a matrix on its main surface
IM250 and a plurality of MIM250 are formed,
Fluorescent substance-dispersed polyimide layer 9 in which daylight fluorescent substance is dispersed
1 and a plurality of dot-shaped transparent electrodes 75 which are respectively connected to a plurality of MIMs 250 and are formed in a matrix on the fluorescent material-dispersed polyimide layer 91.

The MIM 250 includes the Ta layer 251 and the Ta layer 25.
1 is provided with an anodized film 252 formed by anodizing, and a Cr layer 253 formed on the anodized film 252.
The MIM 250 is covered with the fluorescent substance-dispersed polyimide layer 91. The Cr layer 253 of the MIM 250 is connected to the transparent electrode 75 through a contact hole provided in the fluorescent substance dispersed polyimide layer 91. The black matrix 74 is provided on a region where the transparent electrode 75 is not provided and a region where the MIM 250 is provided.

First, ITO was formed on the glass substrate 10 by a sputtering method, and a plurality of transparent electrodes 79 having a strip shape were formed by photoetching. After that, the black matrix 74 was formed on the main surface of the glass substrate 10 on which the transparent electrode 79 was not provided, to obtain the substrate 1.

Next, 1920 × 1200 MIMs 250 were formed in a matrix on the glass substrate 20.
Next, a fluorescent material-dispersed polyimide layer 91 in which ZnO: Zn, which is a daylight fluorescent material, was dispersed was formed on the glass substrate 20 while covering the MIM 250. After that, a contact hole reaching the Cr layer 253 was selectively formed in the fluorescent substance-dispersed polyimide layer 91. Next, a transparent electrode 75 made of ITO is extended from the Cr layer 253 onto the fluorescent substance-containing polyimide layer 91 through a contact hole provided in the fluorescent substance-dispersed polyimide layer 91 to obtain 300 μm × 100.
The dot-shaped transparent electrode 75 with a size of μm is 1920 × 1.
200 pieces were selectively formed in a matrix on the fluorescent substance-containing polyimide layer 91 to form the substrate 2.

Next, a liquid crystal to which a white dichroic dye was added was sandwiched between the substrate 1 and the substrate 2 by a conventional method to prepare a positive type guest-host type liquid crystal panel 100.

When no voltage was applied, white green was displayed. When a voltage was applied to the liquid crystal layer 3 by the MIM250, the corresponding display pixel became cloudy and the reflectance was low.
A high contrast bright black and white display of a normally white display was obtained. The resolution was also high. When used as a reflection type liquid crystal display device, light enters from the glass substrate 10 side. Further, the liquid crystal display device 100 of this embodiment can also be used as a transmissive type, in which case light may be incident from any substrate side, but in order to reduce the influence of surface reflection and enhance the contrast. It is preferable that the light be incident from the glass substrate 20 side. .

In this embodiment, since the transparent electrode 75 is provided on the fluorescent substance-containing polyimide layer 91, the voltage applied to the liquid crystal display device 100 can be reduced,
As a result, the driving voltage can be lowered and the voltage can be accurately applied to the liquid crystal layer 3. Further, since the fluorescent substance-dispersed polyimide layer 91 in which the daylight fluorescent substance is dispersed is used, this layer can serve as an interlayer film and a light emitting layer.

(Example 36) FIG. 31 is a schematic sectional view for explaining a liquid crystal display device of the present example.

In this embodiment, the reflective electrodes 81, 82 and 83 made of Al are used as the red coloring layer 46 and the green coloring layer 4 respectively.
7. The third embodiment is different from the thirty-second embodiment in that it is further provided between the blue coloring layer 48 and the glass substrate 20, but the other points are the same and the manufacturing method is also the same. The reflective electrodes 81, 82 and 83 made of Al were produced by sputtering Al and then selectively removing it in a dot matrix form by photoetching.

When no voltage is applied, red, green, and blue are 3
The colors were mixed and a bright white display was obtained. MIM2
When a voltage was applied to the liquid crystal layer 3 by 10, 220 and 230, the corresponding display pixel became cloudy and the reflectance was low.
A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this embodiment, the reflecting electrodes 81, 82 and 83 made of Al are used as the red coloring layer 46 and the green coloring layer 4, respectively.
7. Since it is further provided between the blue coloring layer 48 and the glass substrate 20, respectively, the red coloring layer 46 and the green coloring layer 4 are provided.
7. The effective reflectance of the blue coloring layer 48 was increased, and a brighter display was obtained.

Also in this embodiment, the transparent electrode 7
Since 1, 72 and 73 are provided on the red coloring layer 46, the green coloring layer 47 and the blue coloring layer 48, respectively, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered. Moreover, the voltage can be accurately applied to the liquid crystal layer 3. In addition, the transparent electrode 71,
72 and 73 are the red coloring layer 46 and the green coloring layer 4, respectively.
7. Since it is formed so as to cover the blue coloring layer 48, it also serves as a passivation of these coloring layers.

(Example 37) In Example 36, C
An ink containing aSiO ₃ : Pb is used to form a red coloring layer 46 that appears red under daylight, and an ink containing Zn ₂ SiO ₄ : Mn is used to form a green coloring layer 4 that appears green under daylight.
No. 7 was used to form a blue coloring layer 48 which appears blue under daylight using an ink containing ZnS: Ag as the reflective electrodes 81 and 8 respectively.
In the present embodiment, the daylight fluorescent substances Eoine and Lumogen L Brillia are formed in a dot matrix shape on Nos. 2 and 83.
nt Yellow, 3,6-tetramethyl diamino-N-methyl phthalimid is used as a raw material, and three daylight fluorescent pigments are prepared. The pigments are dispersed in a varnish to form an ink, which is then applied to the reflective electrodes 81, 82 and 83. The offset printing, the heating and fixing, and the coloring layers that appear red, yellow, and green under daylight are the coloring layer 46, the coloring layer 47, and the coloring layer 48, respectively, and the substrate 1 in Example 36. Between the substrate and the substrate 2
A positive type guest-host type liquid crystal panel 100 was manufactured by sandwiching a liquid crystal containing a chromatic dye by a conventional method. In the present embodiment, a black dichroic dye is provided between the substrate 1 and the substrate 2. The liquid crystal to which is added is sandwiched by a conventional method to prepare a negative guest-host liquid crystal panel, which is different from Example 36, but the other points are the same and the manufacturing method is also the same.

When a voltage was applied to the liquid crystal layer 3 by the MIMs 210, 220 and 230, the coloring layer of the corresponding display pixel was vividly colored, and when not applied, it was scattered black and had a low reflectance. A high-contrast bright multi-color display with a normally black display was obtained. The resolution was also high.

In this embodiment, since the color forming layers which look red, yellow and green respectively under daylight are used, the color mixture of these does not become white, but the color forming layers which look blue under daylight are used. In place of the above, since a coloring layer that looks yellow in daylight is used, the luminous efficiency of the entire liquid crystal display device 100 is high, and a bright liquid crystal display device is obtained.

(Embodiment 38) FIG. 32 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

In the thirty-sixth embodiment, the transparent electrodes 71, 72, 73 made of ITO are replaced by the MIMs 210, 220, 23.
No. 0 Cr layers 213, 223, and 233 are formed to extend, respectively, but in the present embodiment, the reflective electrodes 81, 82, and 83 made of Al are MIMs 210, 220, and 23.
0 is different from Example 36 in that it is formed by extending from the Cr layers 213, 223, and 233, respectively, but other points are the same and the manufacturing method is also the same.

When voltage is not applied, red, green and blue are 3
The colors were mixed and a bright white display was obtained. MIM2
When a voltage was applied to the liquid crystal layer 3 by 10, 220 and 230, the corresponding display pixel became cloudy and the reflectance was low.
A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

(Example 39) FIG. 33 is a schematic sectional view for explaining a liquid crystal display device of the present example.

In this embodiment, the reflective electrodes 81, 82 and 83 made of Al are formed so as to cover the MIMs 210, 220 and 230, and the black matrix 97 is formed not on the substrate 1 side but on the substrate 2. It is different from Example 38 in that it is formed on the side, but other points are the same and the manufacturing method is also the same.

When no voltage is applied, red, green, and blue are 3
The colors were mixed and a bright white display was obtained. MIM2
When a voltage was applied to the liquid crystal layer 3 by 10, 220 and 230, the corresponding display pixel became cloudy and the reflectance was low.
A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this example, since the reflective electrodes 81, 82, 83 made of Al were formed so as to cover the MIMs 210, 220, 230, the aperture ratio was increased and a brighter display was obtained.

(Embodiment 40) FIG. 34 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

In this embodiment, the reflective electrode 84 made of Al is used as the fluorescent substance-dispersed polyimide layer 91 and the glass substrate 2.
0 is different from Example 35 in that it is further provided between 0 and 0, and the other points are the same and the manufacturing method is also the same. The reflective electrode 84 made of Al was formed by sputtering Al and then selectively removing it in a dot matrix form by photoetching.

When no voltage was applied, white-green display was obtained. When a voltage was applied to the liquid crystal layer 3 by the MIM250, the corresponding display pixel became cloudy and the reflectance was low.
A high contrast bright black and white display of a normally white display was obtained. The resolution was also high.

In this embodiment, the reflective electrode 84 made of Al is used as the fluorescent substance-dispersed polyimide layer 91 and the glass substrate 2.
Since it is further provided between 0 and 0, the effective reflectance by the coloring layer 91 is increased and a brighter display is obtained.

Further, in this embodiment, the transparent electrode 75
Is provided on the fluorescent substance-dispersed polyimide layer 91,
The voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the drive voltage can be reduced, and the voltage can be accurately applied to the liquid crystal layer 3.

(Example 41) FIG. 35 is a schematic sectional view for explaining a liquid crystal display device of the present example.

This example is different from Example 32 in that the area of the blue coloring layer 48 is made larger than the areas of the red coloring layer 46 and the green coloring layer 47, but the other points are the same and the manufacturing method is the same. Is also the same.

When no voltage is applied, red, green, and blue are 3
The colors were mixed and a bright white display was obtained. MIM2
When a voltage was applied to the liquid crystal layer 3 by 10, 220 and 230, the corresponding display pixel became cloudy and the reflectance was low.
A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this embodiment, since the area of the blue coloring layer 48 is larger than the areas of the red coloring layer 46 and the green coloring layer 47, the three colors can be balanced and an excellent full color can be obtained. Display quality is obtained.

Also in this embodiment, the transparent electrode 7
Since 1, 72 and 73 are provided on the red coloring layer 46, the green coloring layer 47 and the blue coloring layer 48, respectively, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered. Moreover, the voltage can be accurately applied to the liquid crystal layer 3. In addition, the transparent electrode 71,
72 and 73 are the red coloring layer 46 and the green coloring layer 4, respectively.
7. Since it is formed so as to cover the blue coloring layer 48, it also serves as a passivation of these coloring layers.

(Example 42) FIG. 36 is a schematic sectional view for explaining a liquid crystal display device of the present example.

In this embodiment, the area of the blue coloring layer 48 is made larger than the areas of the red coloring layer 46 and the green coloring layer 47, and the area of the reflection layer 83 below the blue coloring layer 43 is changed to another reflection area. It differs from Example 36 in that the area of the layers 81 and 82 is made larger, but the other points are the same and the manufacturing method is also the same.

When no voltage is applied, red, green, and blue are 3
The colors were mixed and a bright white display was obtained. MIM2
When a voltage was applied to the liquid crystal layer 3 by 10, 220 and 230, the corresponding display pixel became cloudy and the reflectance was low.
A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this embodiment, since the area of the blue coloring layer 48 is larger than the areas of the red coloring layer 46 and the green coloring layer 47, it is possible to balance the three colors and to obtain an excellent full color. Display quality is obtained.

In this embodiment, the reflective electrodes 81, 82 and 83 made of Al are used as the red coloring layer 46 and the green coloring layer 4 respectively.
7. Since it is further provided between the blue coloring layer 48 and the glass substrate 20, respectively, the red coloring layer 46 and the green coloring layer 4 are provided.
7. The effective reflectance of the blue coloring layer 48 was increased, and a brighter display was obtained.

Also in this embodiment, the transparent electrode 7
Since 1, 72 and 73 are provided on the red coloring layer 46, the green coloring layer 47 and the blue coloring layer 48, respectively, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered. Moreover, the voltage can be accurately applied to the liquid crystal layer 3. In addition, the transparent electrode 71,
72 and 73 are the red coloring layer 46 and the green coloring layer 4, respectively.
7. Since it is formed so as to cover the blue coloring layer 48, it also serves as a passivation of these coloring layers.

(Embodiment 43) FIG. 37 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10, a plurality of MIMs 93, 94 and 95 formed in a matrix on its main surface, and a plurality of dots formed in a matrix by being connected to the plurality of MIMs 93, 94 and 95, respectively. Transparent electrodes 35, 3
6 and 37, the substrate 2 is a glass substrate 20,
Strip-shaped red coloring layer 46, green coloring layer 47, and blue coloring layer 48 formed on the main surface, and strip-shaped transparent electrodes formed on the red coloring layer 46, green coloring layer 47, and blue coloring layer 48, respectively. 101, 102, 103 and the red coloring layer 46
And the transparent electrode 101, the green coloring layer 47 and the transparent electrode 102, and the blue coloring layer 48 and the transparent electrode 103 are not formed on the glass substrate 20. And a black matrix 98.

First, the MIMs 93 and 9 are formed on the glass substrate 10.
640 × 400 pieces of each of 4 and 95 were formed in a matrix. After that, ITO for display pixels is formed by the sputtering method, and the transparent electrodes 35, 36, and
Substrate 1 was obtained by selectively forming 640 × 400 37 in a dot matrix.

Next, three colors of daylight fluorescent pigments were prepared using the daylight fluorescent substances Rhodamine 6G, 3,6-tetramethyldiamino-N-methylphthalimid, Dioxazine violet and some light absorbers as raw materials. The pigment is dispersed in a varnish to form an ink, and the transparent electrode 3 which is a display pixel provided on the glass substrate 20 is provided on the substrate 1.
Offset printing was performed in a strip shape so as to overlap 5, 36, and 37. After heating and fixing, band-shaped red coloring layers 46, green coloring layers 47, and blue coloring layers 48, which appear red, green, and blue respectively in daylight, were formed. After that, by sputtering I
TO is formed on the entire surface of the glass substrate 20, and photo-etching is performed on the strip-shaped red coloring layer 46, the green coloring layer 47, and the blue coloring layer 48 to form strip-shaped transparent electrodes 101, 10 respectively.
2, 103 were selectively formed. After that, the red coloring layer 4
6 and the transparent electrode 101, the green coloring layer 47 and the transparent electrode 102, and the blue coloring layer 48 and the transparent electrode 103 are not provided with a black matrix on the glass substrate 20. Forming substrate 98
And

Next, a liquid crystal having a polymerizable substance added is sandwiched between the substrate 1 and the substrate 2 by a conventional method, and ultraviolet rays are irradiated while applying a voltage to polymerize the liquid crystal. The panel 100 was produced.

When no voltage is applied, red, green, and blue are 3
The colors were mixed and a bright white display was obtained. When a voltage is applied to the liquid crystal layer by the MIM elements 93, 94 and 95,
The corresponding display pixel was clouded and the reflectance was low. A high-contrast, bright multi-color display with a normally white display was obtained. It has a high resolution and can be used in portable personal computers. When used as a reflection type liquid crystal display device, light enters from the glass substrate 10 side. Further, the liquid crystal display device 100 of the present embodiment can also be used as a transmissive type, and in that case, light may be incident from any substrate side, but in order to reduce the influence of surface reflection and increase the contrast. It is preferable that the light be incident from the glass substrate 20 side.

In this embodiment, the transparent electrodes 101, 1
02 and 103 are respectively provided on the red coloring layer 46, the green coloring layer 47, and the blue coloring layer 48, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered. In addition, the voltage can be accurately applied to the liquid crystal layer 3.

(Example 44) In Example 43, a red color-developing layer which appears red under daylight using daylight fluorescent substances Rhodamine 6G, 3,6-tetramethyldiamino-N-methylphthalimid and Dioxazine violet. 46, and a green coloring layer 4 that looks green in daylight
7 and a blue coloring layer 48 that looks blue in daylight are formed. In this example, the daylight fluorescent substances Eoine and Lumog are used.
en L Brilliant Yellow, 3,6-tetramethyl diamino-N-methyl phthalimid, as raw materials, 3 daylight fluorescent pigments were prepared, and these pigments were dispersed in a varnish to form an ink, which was offset printed on the glass substrate 20. Example 4 in which the coloring layers that appear red, yellow, and green under daylight are formed as the coloring layer 46, the coloring layer 47, and the coloring layer 48, respectively.
In No. 3, a liquid crystal added with a white dichroic dye was sandwiched between the substrate 1 and the substrate 2 by a conventional method to prepare a positive guest-host type liquid crystal panel 100. A liquid crystal panel to which a black dichroic dye is added is sandwiched between the substrate 1 and the substrate 2 by a conventional method to prepare a negative guest-host liquid crystal panel, which is different from Example 43, but the other points are as follows. The same applies to the manufacturing method.

When a voltage was applied to the liquid crystal layer 3 by the MIMs 93, 94, and 95, the color forming layer of the corresponding display pixel was vividly colored, and when not applied, the color was scattered black and the reflectance was low. A high-contrast bright multi-color display with a normally black display was obtained. It has a high resolution and can be used in portable personal computers.

In this embodiment, since the color forming layers which look red, yellow and green respectively under daylight are used, the color mixture does not become white, but the color forming layers which look blue under daylight are used. In place of the above, since a coloring layer that looks yellow in daylight is used, the luminous efficiency of the entire liquid crystal display device 100 is high, and a bright liquid crystal display device is obtained.

(Embodiment 45) FIG. 38 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

This embodiment is different from Embodiment 43 in that a reflective layer 85 is further provided between the red color developing layer 46, the green color developing layer 47, the blue color developing layer 48 and the glass substrate 20, but the other points are the same. The same applies to the manufacturing method. The reflective layer 85 was prepared by applying an ink containing a white pigment of titanium oxide on the entire main surface of the glass substrate 20 and heating and fixing.

When no voltage is applied, red, green, and blue are 3
The colors were mixed and a bright white display was obtained. MIM9
When a voltage was applied to the liquid crystal layer 3 by 3, 94 and 95, the corresponding display pixel became cloudy and the reflectance was low. A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this embodiment, since the reflective layer 85 is provided between the red color developing layer 46, the green color developing layer 47, the blue color developing layer 48 and the glass substrate 20, the red color developing layer 46, the green color developing layer 47, The effective reflectance of the blue coloring layer 48 was increased, and a brighter display was obtained.

Also in this embodiment, the transparent electrode 10
1, 102 and 103 are the red coloring layer 46 and the green coloring layer 4
7. Since they are provided on the blue coloring layer 48, respectively, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered, and the voltage can be accurately applied to the liquid crystal layer 3. be able to.

(Embodiment 46) FIG. 38 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

This embodiment is different from Embodiment 44 in that a reflecting layer 85 is further provided between the coloring layer 46, the coloring layer 47, the coloring layer 48 and the glass substrate 20, but the other points are the same. The manufacturing method is also the same. The reflective layer 85 was prepared by applying ink containing a white pigment of titanium oxide on the main surface of the glass substrate 20 and heating and fixing.

When a voltage was applied to the liquid crystal layer 3 by the MIMs 93, 94 and 95, the color forming layer of the corresponding display pixel was vividly colored, and when not applied, the color was scattered black and the reflectance was low. A high-contrast bright multi-color display with a normally black display was obtained. It has a high resolution and can be used in portable personal computers.

In this embodiment, since the color forming layers which look red, yellow and green respectively under daylight are used, the color mixture of these does not become white, but the color forming layer which looks blue under daylight is used. In place of the above, since a coloring layer that looks yellow in daylight is used, the luminous efficiency of the entire liquid crystal display device 100 is high, and a bright liquid crystal display device is obtained.

In this embodiment, since the reflecting layer 85 is provided between the coloring layer 46, the coloring layer 47, and the coloring layer 48 and the glass substrate 20, the coloring layer 46, the coloring layer 47 and the coloring layer 4 are provided.
The effective reflectance by 8 was increased, and a brighter display was obtained.

Also in this embodiment, the transparent electrode 10
1, 102, and 103 are provided on the coloring layer 46, the coloring layer 47, and the coloring layer 48, respectively.
It is possible to reduce the voltage applied to the liquid crystal display device, as a result, it is possible to reduce the drive voltage, and it is possible to accurately apply the voltage to the liquid crystal layer 3.

(Example 47) FIG. 39 is a schematic sectional view for explaining a liquid crystal display device of the present example.

In Example 45, the red coloring layer 46,
Although the reflective layer 85 between the green coloring layer 47, the blue coloring layer 48 and the glass substrate 20 is provided on the entire main surface of the glass substrate 20, in the present embodiment, the strip-shaped red coloring layer 46 and the glass substrate 20 are provided. The strip-shaped reflecting layer 86 is provided between the strip-shaped green coloring layer 47 and the glass substrate 20, and the strip-shaped reflecting layer 87 is provided between the strip-shaped green coloring layer 47 and the glass substrate 20. A strip-shaped reflective layer 88 is provided between the transparent electrode 101, the red coloring layer 46, and the reflective layer 86.
A laminated body of the transparent electrode 102, the green coloring layer 47, and the reflecting layer 87, and the transparent electrode 103, the blue coloring layer 48, and the reflecting layer 8.
8 is different from Example 45 in that the black matrix 98 is formed on the glass substrate 20 on which the laminated body with No. 8 is not provided, but the other points are the same and the manufacturing method is also the same. In addition,
The reflective layers 86, 87 and 88 were produced by offset printing ink containing a white pigment of titanium oxide on the main surface of the glass substrate 20 and heating and fixing.

When no voltage is applied, red, green and blue are 3
The colors were mixed and a bright white display was obtained. MIM9
When a voltage was applied to the liquid crystal layer 3 by 3, 94 and 95, the corresponding display pixel became cloudy and the reflectance was low. A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this embodiment, the reflecting layers 86, 87,
88 is a red coloring layer 46, a green coloring layer 47, a blue coloring layer 4
8 is provided between the glass substrate 20 and the glass substrate 20, respectively,
The effective reflectances of the red coloring layer 46, the green coloring layer 47, and the blue coloring layer 48 were increased, and a brighter display was obtained.

Also in this embodiment, the transparent electrode 10 is also used.
1, 102 and 103 are the red coloring layer 46 and the green coloring layer 4
7. Since they are provided on the blue coloring layer 48, respectively, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered, and the voltage can be accurately applied to the liquid crystal layer 3. be able to.

(Embodiment 48) FIG. 40 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

In the liquid crystal display device 100 of this embodiment, the liquid crystal layer 3 is sandwiched between the substrate 1 and the substrate 2. The substrate 1 includes a glass substrate 10, a plurality of MIMs 96 formed in a matrix on the main surface thereof, and a plurality of MIMs 96.
The substrate 2 is provided with a plurality of dot-shaped transparent electrodes 38 which are connected to each other and are formed in a matrix. The substrate 2 is a glass substrate 20 and a belt-shaped coloring layer 49 formed on the main surface thereof.
And a strip-shaped transparent electrode 104 formed on the coloring layer 49.
And a black matrix 98 formed on the glass substrate 20 between the laminated body of the coloring layer 49 and the transparent electrode 104.

First, 1920 × 1200 pieces of MIM 96 were formed in a matrix on the glass substrate 10.
After that, ITO for display pixels is formed by the sputtering method,
The transparent electrodes 38 were selectively formed in a dot matrix by 1920 × 1200 by photoetching to obtain a substrate 1.

Next, an ink containing the daylight fluorescent substance ZnO: Zn was used to perform offset printing in a strip shape on the glass substrate 20 so as to overlap the transparent electrode 38 which is a display pixel provided on the substrate 1. It was heated and fixed, and a band-shaped coloring layer 49 which appeared white green under daylight was formed. After that, ITO was formed on the entire surface of the glass substrate 20 by the sputtering method, and the band-shaped transparent electrode 104 was selectively formed on the band-shaped coloring layer 49 by photoetching. Then, the black matrix 98 was formed on the glass substrate 20 between the laminated body of the coloring layer 49 and the transparent electrode 104, and it was set as the board 2.

Next, a liquid crystal added with a polymerizable substance is sandwiched between the substrate 1 and the substrate 2 by a conventional method, and ultraviolet rays are irradiated while applying a voltage to polymerize the liquid crystal. The panel 100 was produced.

When no voltage was applied, white green was displayed. When a voltage was applied to the liquid crystal layer by the MIM element 96, the corresponding display pixel became cloudy and the reflectance was low.
A high contrast bright black and white display of a normally white display was obtained. It has a high resolution and can be used in portable personal computers. When used as a reflection type liquid crystal display device, light enters from the glass substrate 10 side. Further, the liquid crystal display device 100 of this embodiment can also be used as a transmissive type, in which case light may be incident from any substrate side, but in order to reduce the influence of surface reflection and enhance the contrast. It is preferable that the light be incident from the glass substrate 20 side.

In this embodiment, since the transparent electrode 104 is provided on the color forming layer 49, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered, and the liquid crystal The voltage can be applied to layer 3 accurately.

(Embodiment 49) FIG. 41 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

This example is different from Example 48 in that a reflective layer 85 is further provided between the color forming layer 49 and the glass substrate 20, but the other points are the same and the manufacturing method is also the same. The reflective layer 85 was prepared by applying an ink containing a white pigment of titanium oxide on the entire main surface of the glass substrate 20 and heating and fixing.

White green display was obtained when no voltage was applied. When a voltage is applied to the liquid crystal layer 3 by the MIM96,
The corresponding display pixel was clouded and the reflectance was low. A high contrast bright black and white display of a normally white display was obtained. The resolution was also high.

In this embodiment, since the reflective layer 85 is provided between the color forming layer 49 and the glass substrate 20, the effective reflectivity of the color forming layer 49 is increased and a brighter display can be obtained.

Also in this embodiment, the transparent electrode 10
4 is provided on the coloring layer 49, the liquid crystal display device 10
The voltage applied to 0 can be reduced, and as a result, the drive voltage can be lowered, and the voltage can be accurately applied to the liquid crystal layer 3.

(Embodiment 50) FIG. 42 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

In this embodiment, the area of the blue coloring layer 48 is made larger than the areas of the red coloring layer 46 and the green coloring layer 47, and the area of the transparent electrode 37 corresponding to the blue coloring layer 43 is changed. The difference from Example 43 is that the transparent electrodes 35 and 36 are made larger than the transparent electrodes, but the other points are the same and the manufacturing method is also the same.

When no voltage is applied, red, green, and blue are 3
The colors were mixed and a bright white display was obtained. MIM9
When a voltage was applied to the liquid crystal layer 3 by 3, 94 and 95, the corresponding display pixel became cloudy and the reflectance was low. A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this embodiment, the area of the blue coloring layer 48 is made larger than the areas of the red coloring layer 46 and the green coloring layer 47, and the area of the transparent electrode 37 corresponding to the blue coloring layer 48 is made transparent. Since the electrodes 35 and 36 are made larger than the transparent electrodes, three colors can be balanced, and excellent full-color display quality can be obtained.

Also in this embodiment, the transparent electrodes 101, 1
02 and 103 are respectively provided on the red coloring layer 46, the green coloring layer 47, and the blue coloring layer 48, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered. In addition, the voltage can be accurately applied to the liquid crystal layer 3.

(Embodiment 51) FIG. 43 is a schematic sectional view for explaining a liquid crystal display device of the present embodiment.

In this embodiment, the area of the blue coloring layer 48 is made larger than the areas of the red coloring layer 46 and the green coloring layer 47, and the area of the transparent electrode 37 corresponding to the blue coloring layer 48 is changed. The transparent electrodes 35 and 36 are different from those in Example 45 in that they are larger than the transparent electrodes, but the other points are the same and the manufacturing method is also the same.

When no voltage is applied, red, green, and blue are 3
The colors were mixed and a bright white display was obtained. MIM9
When a voltage was applied to the liquid crystal layer 3 by 3, 94 and 95, the corresponding display pixel became cloudy and the reflectance was low. A high-contrast, bright full-color display with a normally white display was obtained. The resolution was also high.

In this embodiment, the area of the blue coloring layer 48 is made larger than the areas of the red coloring layer 46 and the green coloring layer 47, and the area of the transparent electrode 37 corresponding to the blue coloring layer 48 is made transparent. Since the electrodes 35 and 36 are made larger than the transparent electrodes, three colors can be balanced, and excellent full-color display quality can be obtained.

In the present embodiment, since the reflecting layer 85 is provided between the red coloring layer 46, the green coloring layer 47, the blue coloring layer 48 and the glass substrate 20, the red coloring layer 46, the green coloring layer 47, The effective reflectance of the blue coloring layer 48 was increased, and a brighter display was obtained.

Also in this embodiment, the transparent electrodes 101, 1
02 and 103 are respectively provided on the red coloring layer 46, the green coloring layer 47, and the blue coloring layer 48, the voltage applied to the liquid crystal display device 100 can be reduced, and as a result, the driving voltage can be lowered. In addition, the voltage can be accurately applied to the liquid crystal layer 3.

In the above examples, the liquid crystal layer 3
A negative guest-host type liquid crystal added with a black dichroic dye, a positive guest-host liquid crystal added with a white dichroic dye, a negative polymer dispersed liquid crystal, a positive type Although the polymer-dispersed liquid crystal of No. 1 was used, a reverse type polymer-dispersed liquid crystal to which a black anisotropic dye is added may be used instead of these liquid crystals.

[0355]

According to the present invention, the first character shape
A first substrate having the electrode on one main surface thereof, a second substrate having the second electrode on its one main surface, one main surface of the first substrate and one main surface of the second substrate In a character display type liquid crystal display device having a liquid crystal layer sandwiched between two layers, by forming a coloring layer containing a daylight fluorescent substance by laminating it with the first electrode or the second electrode, A bright character display type liquid crystal display device is provided.

In this case, the first color layer is laminated
If the electrode or the second electrode is a transparent electrode and the transparent electrode is provided on the liquid crystal layer side with respect to the coloring layer, the conductivity can be supplemented when the coloring layer has insufficient conductivity,
Further, the voltage applied to the liquid crystal display device can be lowered, and the voltage can be applied accurately to the liquid crystal layer.

In the case of a reflective type character display type liquid crystal display device, a reflective layer is provided between the color forming layer and one main surface of the first substrate or the main surface of the second substrate on which the color forming layer is laminated. By further providing, the effective reflectance can be increased. Further, the effective reflectance can also be increased by using the first electrode or the second electrode on which the color forming layer is laminated as a reflective electrode and providing the color forming layer on the liquid crystal layer side with respect to the reflective electrode. .

Further, in the present invention, a plurality of strip-shaped first
A first substrate having one electrode on its one main surface, a second substrate having a plurality of strip-shaped second electrodes on its one main surface, and a first substrate
In a simple matrix type liquid crystal display device having a liquid crystal layer sandwiched between the one main surface of the substrate and the one main surface of the second substrate, a coloring layer containing a daylight fluorescent substance is provided as a first electrode. Alternatively, a simple matrix liquid crystal display device with high definition and high brightness can be obtained by stacking the second electrode and the second electrode.

Also in this case, the conductivity of the coloring layer is improved by forming the first electrode or the second electrode on which the coloring layer is laminated as a transparent electrode and providing the transparent electrode on the liquid crystal layer side with respect to the coloring layer. If it is insufficient, the conductivity can be supplemented, the voltage applied to the liquid crystal display device can be lowered, and the voltage can be applied accurately to the liquid crystal layer.

In the case of a reflection type simple matrix type liquid crystal display device, a reflection layer is further provided between the coloring layer and the one main surface of the first substrate or the one main surface of the second substrate. The effective reflectance can be increased. Also,
The effective reflectance can also be increased by using the first electrode or the second electrode on which the color forming layer is laminated as the reflective electrode and providing the color forming layer on the liquid crystal layer side with respect to the reflective electrode.

Further, in the present invention, a plurality of switching elements arranged in a matrix on one main surface and a plurality of switching elements electrically connected to the plurality of switching elements and arranged in a matrix on one main surface. A first substrate having a first electrode, a second substrate having a second electrode on its one main surface, a first main surface of the first substrate and a second main surface of the second substrate. In an active matrix type liquid crystal display device having a liquid crystal layer sandwiched between them, a coloring layer containing a daylight fluorescent substance is formed by laminating a plurality of first electrodes, and the first electrode is a transparent electrode. By providing the first electrode, which is a transparent electrode, on the liquid crystal layer side with respect to the color forming layer, a liquid crystal display device having high contrast, high definition, bright, and low driving voltage is provided.

When the first electrode on which the color forming layer is laminated is a transparent electrode and the transparent electrode is provided on the liquid crystal layer side with respect to the color forming layer, the conductivity of the color forming layer is improved when it is insufficient. The voltage applied to the liquid crystal display device can be reduced, and the voltage can be accurately applied to the liquid crystal layer.

By forming a transparent electrode from the switching element onto the color forming layer and covering the color forming layer, passivation of the color forming layer can be achieved.

When the color-developing layer is a color-developing layer in which a daylighting substance is dispersed in polyimide, it can serve as both the interlayer film and the color-developing layer.

By further providing a reflective layer between the color forming layer and one main surface of the first substrate, a reflective liquid crystal display device having a large effective reflectance can be obtained.

Also, in the present invention, a plurality of switching elements arranged in a matrix on one main surface thereof,
A first substrate having a plurality of first electrodes electrically connected to the plurality of switching elements and arranged in a matrix on one main surface, and a second substrate having a second electrode on the one main surface. And a liquid crystal layer sandwiched between one main surface of the first substrate and one main surface of the second substrate. By forming the layer by stacking the layer with the second electrode, a high contrast, high definition, and bright liquid crystal display device is provided.

In this case, the second layer in which the coloring layer is laminated
By providing the transparent electrode as the transparent electrode and providing the transparent electrode on the liquid crystal layer side with respect to the coloring layer, the conductivity can be supplemented when the coloring layer has insufficient conductivity and further applied to the liquid crystal display device. By lowering the voltage, the driving voltage can be lowered, and the voltage can be accurately applied to the liquid crystal layer.

In the case of a reflection type liquid crystal display device, a reflective layer is further provided between the color forming layer and the one main surface of the first substrate or the one main surface of the second substrate to provide effective reflection. The rate can be increased. Also, the effective reflectance can be increased by using the second electrode on which the color forming layer is laminated as a reflective electrode and providing the color forming layer on the liquid crystal layer side with respect to the reflective electrode.

Further, in the present invention, a plurality of switching elements arranged in a matrix on one main surface thereof,
A first substrate having a plurality of first electrodes electrically connected to the plurality of switching elements and arranged in a matrix on one main surface, and a second substrate having a second electrode on the one main surface. An active matrix type color liquid crystal display device comprising: a substrate, and a liquid crystal layer sandwiched between one main surface of the first substrate and one main surface of the second substrate. Red coloring layer that contains red and appears red in daylight, second
Each of a plurality of first electrodes, each of which includes a green color-developing layer containing a daylight fluorescent substance that looks green under daylight and a third color-developing layer that contains a third daylight fluorescent substance and looks blue under daylight It is formed by laminating each of the portions of the second electrode corresponding to the plurality of first electrodes, the area of the blue light emitting layer is made larger than that of the red light emitting layer, and the area of the blue light emitting layer is made larger than that of the green light emitting layer. By making the area larger than the area, full color display with excellent display characteristics can be obtained.

Further, in the present invention, a plurality of switching elements arranged in a matrix on one main surface thereof,
A first substrate having a plurality of first electrodes electrically connected to the plurality of switching elements and arranged in a matrix on one main surface, and a second substrate having a second electrode on the one main surface. An active matrix type color liquid crystal display device having a substrate and a liquid crystal layer sandwiched between one main surface of the first substrate and one main surface of the second substrate. A first color-developing layer containing a second day-light fluorescent substance, a second color-developing layer containing a second day-light fluorescent substance, and a third color-developing layer containing a third day-light fluorescent substance. Alternatively, the light emitted from the first coloring layer under daylight and the light emitted from the second coloring layer under daylight are formed by stacking with each of the portions of the second electrode corresponding to the plurality of first electrodes. Although the color mixture of the emitted light and the light emitted from the third coloring layer under daylight does not become white. And fluorescence efficiency of the first daylight fluorescent substance,
The sum of the fluorescence efficiency of the second daylight fluorescent material and the fluorescence efficiency of the third daylight fluorescent material is defined as the fluorescence efficiency of the red fluorescent material that looks red under daylight and the green fluorescence that looks green under daylight. By making it larger than the sum of the fluorescent efficiency of the substance and the fluorescent efficiency of the blue fluorescent substance that appears blue in daylight, white is not obtained as a color mixture, but a bright liquid crystal display device with high overall luminous efficiency can be obtained. .

In particular, the first daylight phosphor is a red phosphor that looks red under daylight, the second daylight phosphor is a green phosphor that looks green under daylight, and the third daylight phosphor is A bright liquid crystal display device can be easily obtained by making the fluorescent efficiency of the fluorescent substance higher than that of the blue fluorescent substance which appears blue in daylight.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view for explaining a liquid crystal display device according to a first embodiment of the present invention.

FIG. 2 is a schematic sectional view for explaining a liquid crystal display device according to a second embodiment of the present invention.

FIG. 3 is a schematic sectional view for explaining a liquid crystal display device according to a third embodiment of the present invention.

FIG. 4 is a schematic sectional view for explaining a liquid crystal display device according to a fourth embodiment of the present invention.

FIG. 5 is a schematic sectional view for explaining a liquid crystal display device according to a fifth embodiment of the present invention.

FIG. 6 is a schematic sectional view for explaining a liquid crystal display device according to a sixth embodiment of the present invention.

FIG. 7 is a schematic cross-sectional view for explaining a liquid crystal display device according to a seventh embodiment of the present invention.

FIG. 8 is a schematic cross-sectional view for explaining a liquid crystal display device of Example 8 of the present invention.

FIG. 9 is a schematic cross-sectional view for explaining a liquid crystal display device of Example 9 of the present invention.

FIG. 10 is a schematic cross-sectional view for explaining a liquid crystal display device of Example 10 of the present invention.

FIG. 11 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 11 and Example 12 of the present invention.

FIG. 12 is a schematic cross-sectional view for explaining a liquid crystal display device of Example 13 of the present invention.

FIG. 13 is a schematic cross-sectional view for explaining a liquid crystal display device of Example 14 of the present invention.

FIG. 14 is a schematic cross-sectional view for explaining a liquid crystal display device of Examples 15 and 16 of the present invention.

FIG. 15 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 17 of the present invention.

FIG. 16 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 18 of the present invention.

FIG. 17 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 19 of the present invention.

FIG. 18 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 20 of the present invention.

FIG. 19 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 21 of the present invention.

FIG. 20 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 22 of the present invention.

FIG. 21 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 23 and Example 24 of the present invention.

FIG. 22 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 25 and Example 26 of the present invention.

FIG. 23 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 27 of the present invention.

FIG. 24 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 28 of the present invention.

FIG. 25 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 29 of the present invention.

FIG. 26 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 30 of the present invention.

FIG. 27 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 31 of the present invention.

FIG. 28 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 32 and Example 33 of the present invention.

FIG. 29 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 34 of the present invention.

FIG. 30 is a schematic cross-sectional view for explaining the liquid crystal display device of the embodiment 35 of the present invention.

FIG. 31 is a schematic cross-sectional view for explaining liquid crystal display devices of Examples 36 and 37 of the present invention.

FIG. 32 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 38 of the present invention.

FIG. 33 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 39 of the present invention.

FIG. 34 is a schematic cross-sectional view for explaining the liquid crystal display device of the embodiment 40 of the present invention.

FIG. 35 is a schematic cross-sectional view for explaining the liquid crystal display device according to the embodiment 41 of the present invention.

FIG. 36 is a schematic cross-sectional view for explaining the liquid crystal display device according to the embodiment 42 of the present invention.

FIG. 37 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 43 and Example 44 of the present invention.

FIG. 38 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 45 and Example 46 of the present invention.

FIG. 39 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 47 of the present invention.

FIG. 40 is a schematic cross-sectional view for explaining the liquid crystal display device of the embodiment 48 of the present invention.

FIG. 41 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 49 of the present invention.

FIG. 42 is a schematic cross-sectional view for explaining the liquid crystal display device according to the embodiment 50 of the present invention.

FIG. 43 is a schematic cross-sectional view for explaining the liquid crystal display device of Example 51 of the present invention.

FIG. 44 is a schematic cross-sectional view of a liquid crystal display device for explaining the operation of the present invention.

FIG. 45 is a schematic cross-sectional view of a liquid crystal display device for explaining the operation of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Substrate 2 ... Substrate 3 ... Liquid crystal layer 10 ... Glass substrate 11 ... Coloring layer 12 ... Transparent electrode 13 ... Reflective layer 14 ... Transparent electrode 15 ... Black matrix 16, 17, 18, 19 ... TFT 20 ... Glass substrate 21 ... Coloring Layer 22 ... Transparent electrode 23 ... Reflective layer (reflection electrode) 24 ... Black matrix 26 ... Interlayer insulating film 27 ... Fluorescent substance-dispersed polyimide layer 31, 32, 33, 34, 35, 36, 37, 38 ... Transparent electrode 41 ... ( (Red) coloring layer 42 ... (Green) coloring layer 43 ... (Blue) coloring layer 45 ... Coloring layer 46 ... (Red) coloring layer 47 ... (Green) coloring layer 48 ... (Blue) coloring layer 49 ... Coloring layers 51, 52 , 53, 55, 57 ... Transparent electrode 54 ... Black matrix 61, 62, 63, 65, 66, 67, 68, 69 ... Reflective layer (reflective electrode) 71, 72, 73, 75, 76, 77 78, 79 ... Transparent electrode 74 ... Black matrix 81, 82, 83, 84, 85, 86, 87, 88 ... Reflective layer (reflective electrode) 91 ... Fluorescent substance-dispersed polyimide layer 92 ... Interlayer insulating film 93, 94, 95, 96 ... MIM 97, 98 ... Black matrix 101,102,103,104 ... Transparent electrode 110,120,130,150 ... TFT 111,121,131,151 ... Source 112,122,132,152 ... Drain 113,123, 133, 153 ... Gate electrodes 114, 124, 134, 154 ... Source electrodes 210, 220, 230, 250 ... MIM 211, 221, 231, 251 ... Ta layers 212, 222, 232, 252 ... Anodized films 213, 223, 233, 253 ... Cr layer 401 ... Red coloring layer 402 ... Green coloring layer 40 ... blue coloring layer 410 ... white light 411 ... red fluorescent 412 ... green fluorescent 413 ... blue phosphor 420 ... external light 430 ... liquid crystal

Claims (23)

[Claims] 1. A first substrate having a character-shaped first electrode on its one main surface, a second substrate having a second electrode on its one main surface, and said one of said first substrates. In a character display type liquid crystal display device having a liquid crystal layer sandwiched between a main surface and the one main surface of the second substrate, a coloring layer containing a daylight fluorescent substance is used for the first electrode or A liquid crystal display device, wherein the liquid crystal display device is formed by stacking the second electrode. 2. The first electrode or the second electrode on which the coloring layer is laminated is a transparent electrode, and the transparent electrode is provided on the liquid crystal layer side with respect to the coloring layer. The liquid crystal display device according to claim 1. 3. A reflective layer is further provided between the color forming layer and the one main surface of the first substrate or the one main surface of the second substrate. The described liquid crystal display device. 4. The first electrode or the second electrode on which the coloring layer is laminated is a reflecting electrode, and the coloring layer is provided on the liquid crystal layer side with respect to the reflecting electrode. The liquid crystal display device according to claim 1, wherein the liquid crystal display device is a liquid crystal display device. 5. A first substrate having a plurality of strip-shaped first electrodes on its one main surface, a second substrate having a plurality of strip-shaped second electrodes on its one main surface, and said first substrate. In a simple matrix type liquid crystal display device having a liquid crystal layer sandwiched between the one main surface of the substrate and the one main surface of the second substrate, wherein a coloring layer containing a daylight fluorescent substance is A liquid crystal display device, which is formed by laminating a first electrode or the second electrode. 6. The first electrode or the second electrode on which the coloring layer is laminated is a transparent electrode, and the transparent electrode is provided on the liquid crystal layer side with respect to the coloring layer. The liquid crystal display device according to claim 5, which is characterized in that: 7. A reflective layer is further provided between the color forming layer and the one main surface of the first substrate or the one main surface of the second substrate. The described liquid crystal display device. 8. The first electrode or the second electrode on which the color forming layer is laminated is a reflective electrode, and the color forming layer is provided on the liquid crystal layer side with respect to the reflective electrode. The liquid crystal display device according to claim 5, which is characterized in that: 9. A plurality of switching elements arranged in a matrix on one main surface and a plurality of first switching elements electrically connected to the plurality of switching elements and arranged in a matrix on the one main surface. A first substrate having one electrode, a second substrate having a second electrode on its one main surface, the one main surface of the first substrate and the one main surface of the second substrate In the active matrix liquid crystal display device having a liquid crystal layer sandwiched between the first and second electrodes, a coloring layer containing a daylight fluorescent substance is formed by laminating the plurality of first electrodes, respectively. A liquid crystal display device, wherein the electrode is a transparent electrode, and the first electrode, which is a transparent electrode, is provided on the liquid crystal layer side with respect to the coloring layer. 10. The liquid crystal display device according to claim 9, wherein the transparent electrode extends from the switching element onto the color-developing layer and covers the color-developing layer. 11. The coloring layer is a coloring layer in which the daylight fluorescent substance is dispersed in polyimide.
Alternatively, the liquid crystal display device according to item 10. 12. The liquid crystal display device according to claim 9, further comprising a reflective layer provided between the color forming layer and the one main surface of the first substrate. . 13. The liquid crystal display device according to claim 12, wherein the reflective layer is a reflective electrode. 14. A plurality of switching elements arranged in a matrix on one main surface and a plurality of switching elements electrically connected to the plurality of switching elements and arranged in a matrix on the one main surface. A first substrate having one electrode, a second substrate having a second electrode on its one main surface, the one main surface of the first substrate and the one main surface of the second substrate An active matrix type liquid crystal display device having a liquid crystal layer sandwiched between the liquid crystal layer and the second electrode, wherein a color forming layer containing a daylight fluorescent substance is laminated on the second electrode. Display device. 15. The liquid crystal layer according to claim 1, wherein the second electrode is a transparent electrode, and the second electrode, which is the transparent electrode, is provided on the liquid crystal layer side with respect to the color forming layer.
4. The liquid crystal display device according to 4. 16. The liquid crystal display device according to claim 15, further comprising a reflective layer provided between the color forming layer and the one main surface of the second substrate. 17. The second electrode is a reflective electrode, and the coloring layer is provided on the liquid crystal layer side with respect to the second electrode which is the reflective electrode.
4. The liquid crystal display device according to 4. 18. A plurality of switching elements arranged in a matrix on one main surface and a plurality of switching elements electrically connected to the plurality of switching elements and arranged in a matrix on the one main surface. A first substrate having one electrode, a second substrate having a second electrode on its one main surface, the one main surface of the first substrate and the one main surface of the second substrate An active matrix type color liquid crystal display device having a liquid crystal layer sandwiched between the first daylight fluorescent substance and the second daylight fluorescent substance containing a first daylight fluorescent substance and appearing red under daylight. A green color-developing layer which contains green and which appears green under daylight, and a third blue-color-developing layer which contains a third daylight fluorescent substance and looks blue under daylight.
Each of the electrodes, or each of the portions of the second electrode corresponding to the plurality of first electrodes, the blue light emitting layer having an area larger than that of the red light emitting layer. A liquid crystal display device, wherein the area of the light emitting layer is larger than the area of the green light emitting layer. 19. A plurality of switching elements arranged in a matrix on one main surface and a plurality of first switching elements electrically connected to the plurality of switching elements and arranged in a matrix on the one main surface. A first substrate having one electrode, a second substrate having a second electrode on its one main surface, the one main surface of the first substrate and the one main surface of the second substrate An active matrix color liquid crystal display device having a liquid crystal layer sandwiched between the first and second daylight fluorescent substances, and a second daylight fluorescent substance-containing second daylight fluorescent substance. And a third color-developing layer containing a third daylight fluorescent substance, respectively, in each of the plurality of first electrodes or in each of the second electrodes corresponding to the plurality of first electrodes. It is formed by stacking with The light emitted from the color layer, the light emitted from the second color development layer under daylight, and the third light emitted under daylight.
Although the color mixture with the light emitted from the color-developing layer does not become white, the fluorescence efficiency of the first daylight fluorescent material, the fluorescence efficiency of the second daylight fluorescent material, and the third daylight fluorescent material. The fluorescence efficiency of the red phosphor that appears red in daylight, the fluorescence efficiency of a green phosphor that appears green in daylight, and the fluorescence efficiency of a blue phosphor that appears blue in daylight. Liquid crystal display device characterized by being larger than the sum of. 20. The first daylight phosphor is a red phosphor that looks red under daylight, and the second daylight phosphor is a green phosphor that looks green under daylight. Third
20. The liquid crystal display device according to claim 19, wherein the fluorescent efficiency of the daylight fluorescent material is higher than the fluorescent efficiency of the blue fluorescent material that appears blue in daylight. 21. The liquid crystal display device according to claim 20, wherein the third daylight fluorescent material is a fluorescent material that looks yellow in daylight. 22. The liquid crystal display device according to claim 1, wherein the liquid crystal layer is a polymer-dispersed liquid crystal layer. 23. The liquid crystal display device according to claim 1, wherein the liquid crystal layer is a guest-host type liquid crystal layer.