JP3452276B2 - Liquid crystal display device using hologram and method of manufacturing the same - Google Patents

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 using a hologram and a manufacturing method thereof, and more particularly to a liquid crystal display device using a hologram to improve the utilization efficiency of illumination light and a manufacturing method thereof. is there.

[0002]

2. Description of the Related Art Conventionally, in a color liquid crystal display device using a color filter, a backlight is indispensable for displaying. However, if the white light is directly emitted from the back of the color liquid crystal display device, its utilization efficiency is very low. The main reasons are listed below.

The black matrix other than the cells of each color occupies a large area, and the light impinging on it is wasted. Of the white light incident on each pixel, R (red), G (green),
Since the color components that pass through the B (blue) color filter are limited, other complementary color components are wasted. Since the transmittance of the color filter itself is not 100%, the utilization efficiency is reduced at that ratio.

In order to solve such a problem, as shown in FIG. 10, for example, a microlens array 2 is installed in front of the color filter 1, and a white light backlight 3 is provided in each of the color filter cells R, G, B. Conventionally, a method of increasing the utilization efficiency of the backlight 3 by collecting the light is known. In FIG. 10, reference numeral 4 indicates a black matrix provided between the color filter cells R, G and B.

[0005]

However, even in this method, the white light 3 is emitted to the respective color filter cells R, G, B.
However, the above problems could not be solved because the light cannot be dispersed and irradiated. In view of such a situation, the present inventor
In Japanese Patent Application Nos. 5-12170-1, 5-14573, 5-97517, and 5-149211, conventional color filters are used in order to significantly improve the utilization efficiency of a backlight for liquid crystal display and the like. A color filter using a hologram used together with the color filter, a color filter using a hologram used in place of a conventional color filter, and methods for manufacturing them have been proposed.

By the way, it is necessary to adapt the color filter using the hologram according to the proposal of the present inventor to the manufacturing process of the liquid crystal panel with the existing color filter. What is important here is that the liquid crystal panel must be manufactured by combining the member including the hologram optical element with other panel members without significantly changing the existing liquid crystal panel manufacturing line.

The present invention has been made in view of such circumstances, and an object thereof is to combine a member including a hologram optical element for a color filter according to the proposal of the present inventor with another liquid crystal panel member. The point is that the process can be added without significantly changing the existing manufacturing process.

[0008]

In a liquid crystal display device using a hologram of the present invention that achieves the above object, liquid crystal cells for displaying pixel information of different colors are periodically arranged, and the transmission state of each liquid crystal cell is changed. From the single or multiple holograms or multiple recorded holograms, which split the incident illumination light into the separately controlled illumination light incident side of the liquid crystal panel and make it enter the liquid crystal cell of the corresponding color. The color filter is integrally bonded, and an antireflection layer for preventing surface reflection is provided on the illumination light incident side of the color filter made of the hologram.

Another liquid crystal display device using the hologram of the present invention is a liquid crystal panel in which liquid crystal cells for displaying different color pixel information are periodically arranged and the transmission state of each liquid crystal cell is controlled separately. On the illumination light incident side, a color filter composed of a single or multiple holograms or multiple recorded holograms, which is used to disperse the incident illumination light and make it enter the liquid crystal cell of the corresponding color, is integrally bonded. in which, the illumination light incident side of the color filter consisting of the hologram, is characterized in that a prism for preventing surface reflection is provided.

Further, a polarizing element for converting the illumination light into linearly polarized light may be provided on the illumination light incident side of the hologram color filter. In this case, it is desirable to select the polarization direction of the polarizing element so that the direction of linearly polarized light becomes S-polarized with respect to the illumination light incident surface of the color filter made of a hologram.

[0011]

Further, in the method of manufacturing a liquid crystal display device using the hologram of the present invention, liquid crystal cells for displaying pixel information of different colors are arranged periodically, and the transmission state of each liquid crystal cell is controlled separately. A liquid crystal panel manufacturing process for manufacturing a panel and a color filter composed of a single hologram or a plurality of holograms that are split or multiplex recorded holograms that split the incident illumination light and make it enter the liquid crystal cell of the corresponding color. The hologram color filter manufacturing process includes a hologram color filter manufacturing process and a bonding process for integrally bonding the manufactured hologram color filter to the illumination light incident side of the separately manufactured liquid crystal panel. In order to prevent surface reflection on the illumination light incident side of the color filter consisting of the hologram, A method characterized in that preferably provided prevention layer.

In another method of manufacturing a liquid crystal display device using the hologram of the present invention, liquid crystal cells displaying pixel information of different colors are periodically arranged, and the transmission state of each liquid crystal cell is controlled separately. A liquid crystal panel manufacturing process for manufacturing a liquid crystal panel, and a color filter composed of a single hologram or a plurality of holograms which are dispersed, or multiple recorded holograms, into which incident illumination light is dispersed and incident on a liquid crystal cell of a corresponding color. And a bonding step of integrally bonding the hologram color filter prepared above to the illumination light incident side of the liquid crystal panel prepared separately, and the hologram color filter preparation. In the process, to prevent surface reflection on the illumination light incident side of the hologram color filter. A method characterized in that preferably provided a prism.

Further, in the hologram color filter manufacturing process, a polarizing element for converting the illumination light into linearly polarized light may be provided on the illumination light incident side of the color filter made of a hologram.

[0015]

According to the present invention, a liquid crystal panel in which liquid crystal cells for displaying pixel information of different colors are periodically arranged, and the transmission state of each liquid crystal cell is controlled separately, is produced separately. A color filter consisting of a single hologram or a plurality of holograms that are superposed, or a hologram that is multiplex-recorded is prepared by separating the illumination light into a liquid crystal cell of a corresponding color. Since the separately manufactured liquid crystal panel is integrally bonded to the illumination light incident side, the liquid crystal display device using the hologram can be manufactured without significantly changing the existing liquid crystal display device manufacturing process. Since the liquid crystal panel manufacturing process does not have to be performed with the hologram layer of the color filter being incorporated, the color filter composed of the hologram is not likely to deteriorate due to being exposed to high temperature. Further, in the present invention, since the antireflection layer or the prism for preventing the surface reflection is provided on the illumination light incident side of the color filter made of the hologram, the light utilization efficiency can be improved.

[0016]

EXAMPLES Examples of a liquid crystal display device using a hologram of the present invention and a method of manufacturing the same will be described below with reference to the drawings. First, the principle of a typical color filter using a hologram used in the present invention will be described. The principle and operation of the color filter of the first embodiment will be described with reference to the sectional view of the liquid crystal display device of FIG. In the figure, a hologram array 5 constituting a color filter used in the present invention is arranged at a distance from the backlight 3 incident side of the liquid crystal display element 6 which is regularly divided into liquid crystal cells 6 '. On the back surface of the liquid crystal display element 6, R, G and B colored cells 1'aligned with the respective liquid crystal cells 6'and a black matrix 4 provided therebetween.
Or the black matrix 4 is arranged without the colored cells 1 '. In addition to the above, polarizing plates (not shown) are arranged on both sides of the liquid crystal display element 6.

The hologram array 5 corresponds to each set of three adjacent liquid crystal cells 6'constituting one pixel of the liquid crystal display element 6, and the minute holograms 5 are arranged in an array at the same pitch as the pixel pitch. 1 ', each of which has a minute hologram 5'aligned with each pixel of the liquid crystal display element 6, and each minute hologram 5'forms an angle θ with respect to the normal line of the hologram array 5. It is formed in a Fresnel zone plate shape so that the incident green light in the backlight 3 is condensed on the colored cell 1'or the liquid crystal cell 6'in the center of the pixel corresponding to the minute hologram 5 '. It is what The minute hologram 5'is formed of a transmission hologram such as a relief hologram, a phase hologram, or an amplitude hologram, which has little or no wavelength dependency of diffraction efficiency. Here, the fact that the diffraction efficiency has no or little wavelength dependence means that it is not a type that diffracts only a specific wavelength and does not diffract other wavelengths like a Lippmann hologram. The wavelength also means that it is diffracted, and the diffraction grating having no wavelength dependence of the diffraction efficiency diffracts at different diffraction angles depending on the wavelength.

With such a structure, when the white backlight 3 which is incident at an angle θ with respect to the normal line from the surface of the hologram array 5 on the side opposite to the liquid crystal display element 6 is incident, the wavelength is changed. The diffraction angles of the minute holograms 5'are different depending on the wavelengths, and the focusing positions for each wavelength are dispersed in the direction parallel to the surface of the hologram array 5. Among them, the red wavelength component is at the position of the color filter cell R or the liquid crystal cell 6'displaying red, the green component is at the position of the color filter cell G or the liquid crystal cell 6'displaying green, and the blue component. Is a color filter cell B or a liquid crystal cell 6'displaying blue
By arranging the hologram array 5 so as to diffract and collect light at respective positions, the respective color components are hardly attenuated by the respective color filter cells R, G, B and the black matrix 4, and the respective liquid crystal cells 6 are arranged. It is possible to perform color display according to the state of the liquid crystal cell 6'at the corresponding position after passing through the ??? The incident angle θ of the backlight 3 on the hologram array 5 is determined by various conditions such as hologram recording conditions, the thickness of the hologram array 5, and the distance between the hologram array 5 and the liquid crystal display element 6.

As described above, by using the hologram array 5 as a color filter, each wavelength component of the conventional backlight for a color filter can be made incident to each color cell without waste, so that the utilization efficiency thereof is significantly improved. be able to.

Next, the principle and operation of the color filter of the second embodiment will be described with reference to the same sectional view of FIG. In the figure, a hologram array 15 constituting a color filter is arranged at a distance on the side of the liquid crystal display device 6 on which the backlight 3 is incident, which is regularly divided into liquid crystal cells 6 '. On the back surface of the liquid crystal display element 6, a color filter 1 comprising R, G, and B colored cells 1 ′ aligned with each liquid crystal cell 6 ′ and a black matrix 4 provided between them is arranged or colored. The cell 1'is omitted and only the black matrix 4 is arranged. In addition to the above, polarizing plates (not shown) are arranged on both sides of the liquid crystal display element 6.

The hologram array 15 is formed by superimposing two holograms 16 'and 17', or two holograms 16 'and 17' are superposed in a single layer on a single photosensitive material and recorded in multiple layers. Which is one of the liquid crystal display elements 6
Corresponding to each set of three adjacent liquid crystal cells 6'constituting a pixel, the minute holograms 15 'are arranged in an array at the same pitch as the pixel pitch. One minute hologram 15 'is arranged in each pixel of the liquid crystal display element 6 and arranged one by one, and the portion of each minute hologram 15' belonging to the hologram 16 'is incident on the hologram array 15 almost vertically. The red wavelength component in the white backlight 3 is selectively diffracted to be condensed at the position of the color filter cell R of the pixel corresponding to the minute hologram 15 'or the liquid crystal cell 6'displaying red. Is formed in the shape of a Fresnel zone plate having wavelength selectivity, and the hologram 1 in each minute hologram 15 'is
The portion belonging to 7'selectively diffracts the blue wavelength component in the white backlight 3 that is incident on the hologram array 15 almost vertically, and the color filter cell B of the pixel corresponding to the minute hologram 15 'is selected. Alternatively, it is formed in a Fresnel zone plate shape having wavelength selectivity so that the light is condensed at the position of the liquid crystal cell 6'displaying blue. Here, the hologram having wavelength selectivity is a type in which only a specific wavelength is diffracted and other wavelengths are transmitted without being diffracted, like a Lippmann hologram. Therefore, most of the blue wavelength component in the white backlight 3 which is vertically incident on the color filter 15 from the rear of the liquid crystal display device is diffracted and condensed by the blue hologram 17 'to output the color filter cell B or blue. Most of the red wavelength component is incident on the position of the liquid crystal cell 6'to display, and the hologram 1 for red is used.
The light is diffracted and condensed by 6'and is incident on the position of the color filter cell R or the liquid crystal cell 6'displaying red. The green component that is not diffracted and condensed by the holograms 17 'and 16' is
While passing through the hologram array 15 and proceeding straight, the light enters the color filter cells R, G, B or the liquid crystal cell 6'displaying those colors by one-third, and It is blocked by the filter at that position (when omitting the colored cell 1'of the color filter,
Since the green component is incident on the position of the liquid crystal cell 6'displaying blue and red, the saturation is higher when the three holograms described below are overlapped or triple recorded. ), The light is effectively incident only on the position of the color filter cell G or the liquid crystal cell 6'displaying green. The respective wavelength components pass through the respective liquid crystal cells 6'with almost no attenuation, and color display can be performed according to the state of the liquid crystal cells 6'at the corresponding positions. Instead of this, a Fresnel zone plate-shaped hologram for green, which also has wavelength selectivity, is additionally added or triple-recorded, and a corresponding color filter cell or liquid crystal cell 6'is provided by each of the three holograms.
The corresponding wavelength component may be diffracted and condensed and made incident. In this case, although the number of holograms or the number of times of multiple recording increases, each wavelength component of the backlight 3 does not waste each color cell R, G. , B or the liquid crystal cell 6 ′, the utilization efficiency thereof is further improved.

By the way, in the above-mentioned FIGS. 1 and 2, the color filter cells R, G, which form one pixel,
Although the Fresnel zone plate-shaped minute holograms 5'and 15 'are arranged in alignment in correspondence with each of B or each set of three liquid crystal cells 6', there is no wavelength dependence of the diffraction efficiency, or A small number of uniform diffraction grating holograms and a microlens array having a pitch corresponding to the pixel pitch are combined, or two or three uniform diffraction grating holograms having wavelength selectivity are superposed or multi-recorded. The same microlens array can be combined with the above-described one, and similarly, the spectral efficiency of the hologram or the wavelength selectivity of diffraction can be utilized to significantly improve the utilization efficiency of the backlight for liquid crystal display.

The present invention will be described below with reference to an embodiment in which the hologram array 5 of FIG. 1 is used as a color filter for a color liquid crystal display device. As shown in FIG. 2, a plurality of wavelength-selective holograms are superposed. The present invention can be applied in the same manner even when the hologram array 15 formed by multiple recording is used as a color filter for a color liquid crystal display device.

By the way, when the backlight 3 is incident on the color filter composed of the holograms 5 and 15 as shown in FIGS. 1 and 2, a part of the backlight 3 is reflected by the hologram surface, and the light utilization efficiency is lowered. . Therefore, as shown in FIG. 3, the backlight 3 is provided on the surface of the color filter 10 (hologram 5 or 15) using a hologram.
It is possible to improve the light utilization efficiency by providing the antireflection means 14 for the above (Japanese Patent Application No. 5-234500). In FIG. 3, the backlight 3 is formed by reflecting the light from the metal halide lamp 11 on the parabolic mirror 12.

As the antireflection means 14, as shown in FIG. 4, an antireflection film 16 is formed on the surface of the hologram optical element 10.
5, a glass block 17 having a surface on the incident side perpendicular to the incident light 3 as shown in FIG. 5 (when the incident light 3 is incident on the surface on the incident side almost perpendicularly, The reflection component can be reduced.), And as shown in FIG. 6, the glass block 1 in which the antireflection film 16 is combined on the incident side surface.
7 may be provided. Here, the antireflection film 16 is
It may be directly provided on the surface of the hologram optical element 10, or a glass plate provided with the antireflection film 16 on the surface may be provided on the surface of the hologram optical element 10 via a refractive index matching liquid.

The antireflection film 16 may be a single-layer or laminated thin film, and is formed by forming a film having a desired refractive index on the substrate by a vacuum evaporation method or the like to a predetermined thickness. It For example, when the antireflection film is formed as a single layer on the substrate, a thin film of a low refractive index material such as MgF ₂ or SiO _{2 is} used, and the optical film thickness d is set to nd = λ / 4 (where λ is the design wavelength, 50
0-580 nm) to form a single-layer antireflection film. Further, in the case of forming a two-layer film, first, a thin film of a high refractive index material such as TlO ₂ , ZrO ₂ or In ₂ O ₃ is formed on the substrate in relation to the refractive index n _1. d _{1 is set} to n ₁ d ₁ = λ / 2 (where λ is a design wavelength of 500 to 580 nm), and then formed on the high refractive index thin film, which is the same as in the case of the single layer. A two-layer film is formed by laminating refractive index thin films.
Even in the case of three or more layers, first, a thin film having a high refractive index is formed on the substrate side, and then a medium refractive index layer such as Al ₂ O ₃ or M
After forming a thin film of gO, Y ₂ O ₃ or the like, the above low refractive index thin film is laminated. That is, in any of the above cases, the antireflection film 16 is formed by forming the low refractive index thin film as the uppermost layer.

In the present invention, the hologram color filter as described above, the substrate glass, the glass block, the antireflection film, and the hologram optical element including the polarizing film, and the hologram optical element manufactured by the existing manufacturing process are used. Other liquid crystal panel members are manufactured in separate steps, and both members are integrated in the final step. By using such an integration process, it is possible to manufacture the liquid crystal display device using the hologram of the present invention without significantly changing the existing manufacturing process of the color liquid crystal display device. The hologram optical element and the other liquid crystal panel are integrated after both are completed by an optical adhesive or the like.

A liquid crystal display device using the hologram of the present invention and a method for manufacturing the same will be described below with reference to specific examples. First, in the hologram color filter manufacturing process, a computer-generated hologram (CGH) was used as an original plate to produce a hologram array 5 in FIG. 1 using an Omnidex 352 hologram recording film, which is a photopolymer photosensitive material manufactured by DuPont. Based on the original plate for duplication, optical contact duplication of the transmission hologram is performed in multiple faces. The laser used for this reproduction is Spectra Physics Argon Leather, model SP2020-5w, 51.
A 4 nm oscillation wavelength was used.

Then, about 100 mJ / unit area
The film was exposed to ultraviolet light with an exposure dose of cm ² . Subsequently, this film was heated at 120 ° C. for 120 minutes.

A film in which a large number of hologram color filters thus obtained were recorded in parallel was punched out for each hologram region and processed into a sheet. Next, as shown in FIG. 7 and FIG.
It adhere | attached on the board | substrate glass 18 through the optical adhesive by Norland, product number NOA61. On top of that, FIG.
As shown in, the polarizing film 19 and the antireflection film 2
In the order of 0, the same optical adhesive as described above was dropped in between and stuck using a roller. Alternatively, first, the glass block 17 (FIGS. 5 and 6) is attached to the hologram sheet 10 via the same optical adhesive, and then the polarizing film 19 and the antireflection film 20 are attached in that order on the incident side surface thereof. It was The optical adhesive is 1
It was irradiated with 000 mJ / cm ² and cured.

Here, the polarizing film 19 is a polarizing element indispensable to the liquid crystal display device, and plays a role of a polarizing element on the incident side of the liquid crystal panel 6. By the way, regarding the polarization direction of the polarization element 19, it is desirable to select the polarization direction of the polarization film 19 so that the illumination light becomes S-polarized light with respect to the backlight 3 of the liquid crystal display device to be finally produced. The reason is as follows.

Kogelnik's formula (H.Kogelnik "Coupled W
ave Theory for Thick Hologram Gratings "Bell Syst.
Tech., J.48,2909 (1969)), transmission hologram 10
The diffraction efficiency η under the Bragg condition is η = sin ² ν (1) where, for ν, the value ν _S for S-polarized light is ν _S = πΔnd / {λ (cos θ cos θ _S ) ^{1 / 2} } (2) The value ν _P for P-polarized light is ν _P = ν _S cos {2 (φ-θ)} (3) (for example, “SPIE” vol. 1507, pp.426-
434 (1991)). Here, the symbol is d, which is hologram 1.
0 is the effective thickness at which interference fringes are recorded, λ is the wavelength of the incident light, Δn is the refractive index modulation of the interference fringes with respect to the average refractive index n of the hologram 10 medium, and φ is the hologram 1 of the normal of the interference fringes.
The angle with respect to the normal line of 0, θ is the angle within the hologram 10 formed by the incident light on the interference fringes with respect to the normal line of the hologram 10,
θ _S is the angle of the first-order light Bragg-diffracted by the interference fringes with respect to the normal line of the hologram 10 inside the hologram 10. This is because the diffraction efficiency η for the linearly polarized light of the hologram 10 becomes higher in the case of S-polarized light than in the case of P-polarized light according to the above formulas (1) to (3).

Next, the holographic optical element manufactured in this manner is used in a liquid crystal panel 6 (FIGS. 7 and 8) including a black matrix, a liquid crystal layer, a TFT, a conductive layer (ITO), etc., which are manufactured in another process. The color filter 1 consisting of the colored cells 1'and the black matrix 4 provided therebetween is provided on the incident side.) As shown in FIGS. Glue them together using an adhesive, product number NOA61. In this last step, the position of the pixel of the hologram 10 on the hologram optical element side and the black mark on the liquid crystal panel 6 side
The position registration of the pixel defined by the trick 4 must be accurately aligned and adhered. To achieve this, position registration markers are placed on both substrates.
The hologram color filter in which the markers are matched and then integrated can obtain good alignment accuracy.

By using the method as described above, a liquid crystal panel can be manufactured without significantly changing the existing manufacturing line of a liquid crystal display device, particularly a liquid crystal display device for a liquid crystal projector as shown in FIG. You can In FIG. 9, the color liquid crystal display device 21 integrated with the hologram color filter 10 as described above is illuminated by a backlight light source including a metal halide lamp 11 and a parabolic mirror 12, and the color display image is projected by a projection lens. 22 is enlarged and projected on the imaging screen 23,
It is enlarged and displayed to the observer.

The liquid crystal display device using the hologram of the present invention and the method for manufacturing the same have been described above based on the embodiments, but the present invention is not limited to these embodiments and various modifications can be made.

[0036]

As is apparent from the above description, according to the liquid crystal display device using the hologram of the present invention and the manufacturing method thereof, liquid crystal cells for displaying different color pixel information are periodically arranged, and each liquid crystal A liquid crystal panel in which the transmission states of the cells are controlled separately is prepared, and separately from this, a single hologram or a plurality of holograms that are dispersed, which split incident illumination light and enter the corresponding liquid crystal cells, or Since a color filter composed of a hologram recorded in multiplex is manufactured and the color filter composed of the manufactured hologram is integrally bonded to the illumination light incident side of a separately manufactured liquid crystal panel, the existing liquid crystal display device manufacturing process can be significantly improved. It is possible to manufacture a liquid crystal display device using a hologram without changing the above. Since the liquid crystal panel manufacturing process does not have to be performed with the hologram layer of the color filter incorporated,
The color filter consisting of a hologram is not exposed to high temperature and is not likely to deteriorate. And in the present invention, on the illumination light incident side of the color filter made of a hologram,
Since the antireflection layer or the prism for preventing the surface reflection is provided, the light utilization efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view for explaining the principle and action of a typical one of a first form of a hologram color filter used in the present invention.

FIG. 2 is a sectional view for explaining the principle and operation of the hologram color filter of the second embodiment.

FIG. 3 is a view showing a state in which a hologram color filter is provided with antireflection means.

FIG. 4 is a diagram showing a state in which an antireflection film is provided as an antireflection means.

FIG. 5 is a diagram showing a glass block provided as an antireflection means.

FIG. 6 is a diagram showing a state in which an antireflection film is provided on the incident side surface of the glass block of FIG.

FIG. 7 is a diagram for explaining an assembly sequence of a liquid crystal display device using a hologram according to the present invention.

FIG. 8 is a diagram for explaining an assembly order of another liquid crystal display device.

FIG. 9 is a diagram showing a configuration of a liquid crystal projector using the liquid crystal display device of the present invention.

FIG. 10 is a diagram for explaining a conventional illumination method for a liquid crystal display device.

[Explanation of symbols]

1 ... Color filter (conventional type) 1 '... colored cell 3 ... Backlight 4 ... Black Matrix 5 ... Hologram array 5 '... micro hologram 6 ... Liquid crystal display element (liquid crystal panel) 6 '... liquid crystal cell 10 ... Color filter (hologram) 11 ... Light source 12 ... Parabolic mirror 14 ... Antireflection means 15 ... Hologram array 15 '... Micro hologram 16 ... Antireflection film 16 '... Hologram 17 ... Glass block 17 '... Hologram 18 ... Substrate glass 19 ... Polarizing film 20 ... Antireflection film 21 ... Color liquid crystal display device 22 ... Projection lens 23 ... Imaging screen

Claims (7)

(57) [Claims] 1. A liquid crystal cell for displaying different color pixel information
Periodically arranged, the transmission state of each liquid crystal cell is different
Illumination that is incident on the illumination light incident side of the controlled LCD panel
The light is split and made to enter the liquid crystal cell of the corresponding color.
Number or multiple holograms superposed or multiple recorded
Integrated color filter consisting of a hologram
Are, the liquid crystal display device in which the illumination light incident side of the color filter consisting of a hologram, using a hologram, characterized in that the anti-reflection layer for preventing the surface reflection is provided. 2. A liquid crystal cell for displaying different color pixel information
Periodically arranged, the transmission state of each liquid crystal cell is different
Illumination that is incident on the illumination light incident side of the controlled LCD panel
The light is split and made to enter the liquid crystal cell of the corresponding color.
Number or multiple holograms superposed or multiple recorded
Integrated color filter consisting of a hologram
Are, the liquid crystal display device using a hologram to the illumination light incident side of the color filter consisting of the hologram, characterized in that the prism to prevent the surface reflection is provided. 3. The hologram according to claim 1 or 2, wherein a polarizing element for converting the illumination light into linearly polarized light is provided on the illumination light incident side of the color filter composed of the hologram. Liquid crystal display device. 4. The polarization direction of the polarizing element according to claim 3 , wherein the polarization direction of the polarizing element is selected so that the direction of linearly polarized light is S-polarized with respect to the illumination light incident surface of the color filter formed of a hologram. Liquid crystal display device using a hologram. 5. A liquid crystal cell for displaying different color pixel information
Periodically arranged, the transmission state of each liquid crystal cell is different
Liquid crystal panel manufacturing process for manufacturing controlled liquid crystal panel
And the incident illumination light is separated, and the corresponding color liquid crystal cell
A single hologram or a plurality of superimposed holograms,
Or a color fill consisting of multiple recorded holograms
Hologram color filter manufacturing process
And a color fill consisting of the above-mentioned hologram produced
Illumination light incident side of the liquid crystal panel of the terpolymer was separately from produced the
In the hologram color filter producing step, an antireflection layer for preventing surface reflection is provided on the illumination light incident side of the hologram color filter. you
Method of manufacturing a liquid crystal display device using holograms. 6. A liquid crystal cell for displaying different color pixel information
Periodically arranged, the transmission state of each liquid crystal cell is different
Liquid crystal panel manufacturing process for manufacturing controlled liquid crystal panel
And the incident illumination light is separated, and the corresponding color liquid crystal cell
A single hologram or a plurality of superimposed holograms,
Or a color fill consisting of multiple recorded holograms
Hologram color filter manufacturing process
And a color fill consisting of the above-mentioned hologram produced
Illumination light incident side of the liquid crystal panel prepared separately
Consists of a bonding step of bonding together, in the hologram color filter manufacturing process, the illumination light incident side of the color filter composed of the hologram, it said that you provide a prism for preventing surface reflection A method for manufacturing a liquid crystal display device using a hologram. 7. A polarizing element for converting the illumination light into linearly polarized light is provided on the illumination light incident side of the hologram color filter in the hologram color filter manufacturing step. 5 or
7. A method for manufacturing a liquid crystal display device using the hologram according to 6 .