JP2852387B2 - Liquid crystal electro-optical device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispersion type liquid crystal electro-optical device having a liquid crystal resin composite in which a liquid crystal material is dispersed in a polymer resin. In particular, the transmittance is high,
An object of the present invention is to propose a reflective liquid crystal electro-optical device capable of expressing clear black.

[0002]

2. Description of the Related Art As a conventional liquid crystal electro-optical device, a TN type or STN type using a nematic liquid crystal or the like is widely known.
Has been put to practical use. Recently, a device using a ferroelectric liquid crystal has been known. These liquid crystal electro-optical devices basically have a liquid crystal composition sandwiched between a first substrate having electrodes and leads on a substrate and a second substrate having electrodes and leads on the substrate. The upper electrode applies an electric field to the liquid crystal composition, changing the state of the liquid crystal molecules by the anisotropy of the dielectric constant of the liquid crystal material itself or, in the case of ferroelectric liquid crystals, by spontaneous polarization. It utilizes the electro-optic effect accompanying a change in state.

In the TN and STN type liquid crystal electro-optical devices, the liquid crystal molecules are aligned in the rubbing direction by the rubbing effected for the alignment treatment on the contact surfaces of the liquid crystal layer with both substrates. In the upper and lower substrates, the rubbing direction is shifted so as to be located at 90 ° or 200 ° to 290 °. Near the middle of the liquid crystal layer, 90 ° to 29 °
The liquid crystal molecules are spirally arranged so that the energy between the upper and lower molecules located at 0 ° becomes the smallest. At this time, in the case of the STN type, a chiral substance is mixed in the liquid crystal material as needed.

All of these devices have a polarizing plate and need to regularly align liquid crystal molecules in a certain direction in a liquid crystal electro-optical device. In this orientation treatment, the orientation film (usually an organic film) is rubbed in a certain direction with a cotton or velvet cloth. Without this treatment, the liquid crystal molecules are not arranged in a certain direction, and the electro-optic effect of the liquid crystal is reduced. Not available. Therefore, in the structure of the device, a container holding a liquid crystal material is constituted by a pair of substrates, and liquid crystal is injected into the container, the liquid crystal is aligned, and the optical effect is used.

[0005] On the other hand, there is known a dispersion type liquid crystal which does not require such a polarizing plate or an alignment treatment and has a bright screen and good contrast. The dispersion type liquid crystal is a liquid crystal layer in which a light-transmitting solid-state polymer holds a liquid crystal material in a granular or sea surface state. As a manufacturing method of this liquid crystal device, a method in which an encapsulated liquid crystal material is dispersed in a polymer and the polymer is formed as a thin film on a film or a substrate is known. Here, gum arabic, polyvinyl alcohol, gelatin and the like are used as the encapsulating material.

For example, liquid crystal molecules encapsulated in polyvinyl alcohol, if they have a positive dielectric anisotropy in a thin film, cause the liquid crystal molecules to extend the long axis of the liquid crystal molecules in the presence of an electric field. When the liquid crystal is arranged so as to be parallel to the liquid crystal and has the same refractive index as the liquid crystal, transparency is exhibited. On the other hand, when there is no electric field, the liquid crystal is oriented in various directions without being arranged in a specific direction, so that the difference between the refractive index of the liquid crystal and that of the polymer is large, so that the light is scattered and the transmission of the light is suppressed. Hinder,
It becomes cloudy. Various information is provided using the difference between the transparency and the cloudy state. In addition to the encapsulated liquid crystal, a liquid crystal material dispersed in an epoxy resin or a mixture of liquid crystal and a photo-curable resin is irradiated with light for curing the resin. Further, there are known those utilizing phase separation between liquid crystal and resin, and those in which liquid crystal is impregnated in a three-dimensionally connected polymer. In the present invention, these are collectively referred to as a dispersion type liquid crystal.

[0007] These dispersion type liquid crystal electro-optical devices do not use a polarizing plate as compared with conventional electro-optical devices such as TN and STN, so that the light transmittance of the liquid crystal electro-optical device is remarkably high. Specifically, the transmittance of one polarizing plate is about 50%,
In the case of an active matrix that uses them in combination 1
% Of the light is transmitted through the STN system, which is only about 20%. Therefore, in these cases, efforts are made to increase the illuminance of the rear illumination and make the screen brighter. On the other hand, in the case of the dispersion type liquid crystal electro-optical device, 50% or more of the light is transmitted. This is because the single dispersion liquid crystal device does not require a polarizing plate,
It is superior.

As described above, the dispersion type liquid crystal is used between a transparent state and a cloudy state, and the amount of light transmitted through the liquid crystal electro-optical device is large. It has been done. In particular, among the transmission types, they have been developed as projection type liquid crystal electro-optical devices. This projection type liquid crystal electro-optical device is a device in which a liquid crystal electro-optical device panel is arranged on an optical path of light emitted from a light source, and the light passing through the panel is projected on a wall surface through a slit having a certain angle. is there. The liquid crystal of this panel is oriented in various directions in a low electric field region below a threshold that does not respond to an applied voltage, and is in a cloudy state. At this time, the incident light is scattered after passing through the panel, and the light path of the incident light is greatly widened. Since the light scattered by the slit arranged next to the slit is cut off, almost no light reaches the wall surface, and a black state is obtained.
On the other hand, when the liquid crystal responds when an electric field is applied and the liquid crystal molecules are arranged parallel to the direction of the electric field, the incident light goes straight without scattering and a bright state with high brightness is obtained on the wall surface.

When a color image is to be obtained using this state, R, G, and B color filters may be arranged in correspondence with each pixel in a dispersion-type panel. Or 3
R, G, and B color filters are provided for each of the dispersive panels and each panel, and an R image, a G image, and a B image are projected as a composite image. When the liquid crystal at the positions corresponding to the three colors is in a transmissive state, a bright image of white (hereinafter referred to as W) is obtained, and when the liquid crystal at the positions corresponding to the three colors is in a scattering state, Bl can be expressed on the wall surface. Become.

[0010]

As described above, when a dispersion type liquid crystal is used for a projection type, a state of transmission with Bl can be created. However, by providing a slit having a certain angle in place of the polarizing plate, B1 is realized in this case. However, even if a direct-view type liquid crystal electro-optical device is manufactured for this slit, the conventional liquid crystal electro-optical device can be used. Only a liquid crystal electro-optical device slightly brighter than the device could be realized. Further, when this dispersion type liquid crystal is used for reflection type, W in a scattering state can be obtained, but Bl cannot be obtained in a state where liquid crystal molecules are aligned. Therefore, even if this is made into color, vivid color reproduction cannot be performed, and a sharp image cannot be created.

[0011]

The present invention relates to a reflection type liquid crystal electro-optical device using a dispersion type liquid crystal. As described above, the dispersion-type liquid crystal electro-optical device can create a scattering state in non-electric field response and a transmission state in electric field state. In the present invention, W is expressed in a cloudy state when the liquid crystal molecules are scattered, and in a transparent state when the liquid crystal molecules are aligned in one direction, it is provided next to the dispersed liquid crystal layer with respect to incident light. B1 or a similar color is represented by the specific dye layer thus obtained.

Further, in the case of colorization, in addition to the Bl dye layer, R, G, B dye layers or C, M, Y dye layers are added to the four dye layers for the incident light. The colorization is realized by providing the liquid crystal layer next to the dispersion type liquid crystal layer.
These three color layers of R, G and B, or C, M and Y
A vivid Bl cannot be expressed only by mixing the three color dye layers. Therefore, C, M, and C of the present invention in FIG.
As shown in a schematic cross-sectional view of a liquid crystal electro-optical device in which an additive color mixture of Y and Bl is used as an example, when a reflection type panel is manufactured, the dye layers of C (1), M (2) and Y (3) are added. In addition to providing a mixed color, a dye layer for expressing Bl (4) is provided. Whether R, G, B or C, Y, M is used as the combination of the dye layers depends on the main color tone expressed by the panel. Basically, C, Y, M can be expressed using two colors of R, G, B, and C, Y, M
It is also possible to express R, G, B using the two colors. The combination of R: G: B and C:
A combination of Y: M is usually employed. Which one to use depends on the color tone that the liquid crystal electro-optical device wants to express. Basically, C: Y: M can be expressed by combining two colors of R: G: B. The opposite can, of course, also be done.

Further, as a feature of the liquid crystal electro-optical device of the present invention, at the same time as being of a reflection type, in the case of two substrates, the dye layer is on the first substrate side, and light is incident from the second substrate side. Is to be done. In the case of a single substrate, a dye layer for each color is provided next to the dispersion type liquid crystal layer for incident light. By doing so, in a state in which no voltage is applied to the dispersed liquid crystal, that is, in a state in which the liquid crystal molecules are not aligned, light is scattered to express white, and in a state in which a voltage is applied to the dispersed liquid crystal, With the molecules aligned,
The reflected light that has passed through the R, G, and B dye layers or the C, M, and Y dye layers, and the Bl dye layer can express color and clear Bl. Also,
Other colors can be expressed by mixing colors by turning on and off the pixel portion corresponding to each dye layer. Further, since it has a dye layer of Bl, it is possible to use another dye layer for expressing white and other colors.
That is, it is possible to perform a color display expressing a specific color tone instead of a full color display. For example, a sepia tone color expression or the like can be realized.

As an example of a method of manufacturing such a liquid crystal electro-optical device, the above-mentioned dye layer is formed on a substrate, and the dye layer is protected, diffusion of impurities is prevented, and the height of the dye layer is made uniform. Then, a protective layer (5) is formed. The translucent first
Is formed and patterned to form a first substrate. On the other hand, a panel is formed by sandwiching a dispersion-type liquid crystal material (7) between the second substrate on which the light-transmitting second electrode (6) is formed and the first substrate. Although the dye layer formed on the first substrate can be formed on the light-transmitting conductive film, an electric field is applied to both the dye layer and the liquid crystal layer. Fluctuation of the threshold value at the time and influence on the frequency characteristic require an appropriate change of the liquid crystal material.

If a light-transmitting conductive film can be formed on the second substrate as described above, a MIM type nonlinear element in which a metal, an insulating film, and a metal layer are stacked can be formed. Alternatively, a thin film transistor can be formed.
In general, the steepness of the transmission intensity characteristic of the dispersed liquid crystal when an electric field is applied is not good, and it is difficult to directly perform matrix driving having a large number of electrodes on the dispersed liquid crystal. Therefore, it is better to provide a non-linear element or a thin film transistor to assist the driving. As a result, it is possible to compensate for the lack of sharpness on the liquid crystal side. That is, it is possible to independently create the scattering state and the transmission state of each pixel while performing matrix driving.

As shown in FIG. 1, the arrangement of each dye layer at the time of colorization is as follows: R, G, B, B1 dye layers or C, M,
The state where the dye layers of Y and B1 are arranged farthest apart is good.
The arrangement of the dye layer formed on the first substrate depends on the M of the first substrate.
Toward the row of N columns N +3 row R, G, B, the dye layer of the B1 or, C, M, to form a dye layer Y, B1, the N +3 columns from N rows of M +1 row B, B toward
1, R, G or Y, B1, C, M are arranged. As the rows proceed, the arrangement of the dye layers is shifted by two. With such an arrangement, the colors are separated most, so that the four colors are arranged at the same ratio regardless of which position is observed.

The panel thus formed can be used as a reflection type by directly viewing each of the dye layers from the dispersed liquid crystal layer side. As a result, when no electric field is applied to the liquid crystal, it is recognized as W because it is in a scattering state. On the other hand, when an electric field is applied, the liquid crystal is in a transmission state, so that the dye layer under the liquid crystal layer is recognized. Depending on the choice of dye layer, C, M, Y or R, G, B and B
Look at l. Actually, these combinations are further possible, and color mixing and gradation can be created. In order to produce these colors and W, a color image is actually formed on white paper. Therefore, unlike the conventional impression of the liquid crystal panel that is shining dark, it is possible to provide a feeling as if the user directly looks at the printed matter. Because the color of office supplies so far is based on white, it can be treated in the same way,
Since the liquid crystal electro-optical device itself does not emit light, eye fatigue is also small.

Although many color reflection type panels have been described above, when a color is not required and a white and, for example, a black panel is simply required, a dye layer of only Bl is provided in the cell. Further, in order to simplify the operation, by providing a dye layer of Bl on the outside of the light-transmitting first substrate other than the side where cells are formed, W in a scattering state and Bl in a transmission state can be formed. If the white-blue mode is desired, a B dye layer may be provided outside the substrate instead of Bl. Further, as this color, any color that can be clearly recognized when characters, figures, symbols, and the like are expressed on a white background such as navy blue, shark green, and dark brown can be adopted.
As a result, a reflective two-color liquid crystal electro-optical device can be realized.

Further, in this case, the specific dye layer does not need to be provided corresponding to a specific pixel as in the case of color, but may be provided only on the entire surface of the substrate. In addition, by using a substrate that is colored with a specific color from the beginning, it is not necessary to provide a dye layer.

The pigment layer usable in the present invention includes pigments, dyes, paints, inks used for color printing, and the like.
Various coloring materials can be used. In addition, a pigment having a specific color by a surface treatment such as aluminizing treatment of aluminum, a carbon powder, a graphite film, or the like can be used as the dye layer. Hereinafter, the present invention will be described with reference to Examples.

[0021]

【Example】

Example 1 As shown in FIG. 1, C (1) was placed on a first substrate.
M (2), Y (3), and Bl (4) dye layers are formed and arranged by offset printing at positions corresponding to each pixel, and a protective film for making the height of the dye layers uniform is provided. The leveling layer (5) also serving as the second layer was formed with a thickness of 1 to 5 μm. A light-transmitting conductive film of oxide of indium and tin (6) (Indium-Tin) is formed thereon by a known vapor deposition method or sputtering method.
-Oxyde (ITO) was formed to a thickness of 500 to 2000 °. The sheet resistance at this time is 20 to 200Ω /
cm ² . This was patterned by a usual photolithography technique to obtain a first substrate (8). Next, a TFT is formed by a normal process using polysilicon, and a second substrate (9) having a second translucent electrode (10) is used to form a TFT with a substrate spacing of 5%. ~ 50μ
m, preferably 7 to 20 μm, with a spacer interposed therebetween. The liquid crystal used has a refractive index of 1.5
82, a cyanobiphenyl nematic liquid crystal having a Δn of 0.240, and an uncured photocurable resin having a refractive index of 1.57
A mixed system of a urethane oligomer and an acrylic monomer was used.

At a temperature higher than the NI phase transition point of the liquid crystal mixed system, the liquid crystal is injected into the liquid crystal cell formed by the first substrate and the second substrate, and is irradiated with a UV irradiation intensity of about 10 to 100 mW / cm ^2. The resin was irradiated with ultraviolet light for about 30 to 300 seconds to cure the resin while causing phase separation between the liquid crystal and the resin. Thus, a color dispersion type liquid crystal display device in which the dispersion type liquid crystal layer (7) was sandwiched between the substrates was manufactured.

In this color dispersion type liquid crystal display device, when there is no electric field, it becomes cloudy due to a scattering state, and the dye layer provided on the first substrate cannot be confirmed. The degree of scattering was controlled by applying an AC voltage between these electrodes, changing the voltage between the source and drain of the TFT, and adjusting the voltage applied to the liquid crystal. FIG. 3 shows the relationship between the voltage applied to the liquid crystal and the transparency of the dispersion type liquid crystal layer at this time. Threshold value 3.4
At voltages below volts, the transparency was 0.1-5%.
Further application of a voltage of 15 volts achieved a maximum transparency of 75 to 85%. By changing the applied voltage value, 16 gradations were achieved. Here, the transparency is the same process as the liquid crystal electro-optical device of the present embodiment, a liquid crystal panel having no dye layer is manufactured, and this panel is used in the same manner as the projection type liquid crystal electro-optical device, The brightness on the projection plane is measured and the value is used as a substitute. At this time, the brightness of the projection surface is set to 100% transparency without placing the liquid crystal panel in the optical path between the light source and the projection surface. As a result, each dye layer on the first substrate could be confirmed in a stepwise manner, and in a completely transparent state, each dye layer could be clearly confirmed. Further, by switching for each pixel including control of the applied voltage, a color dispersion type liquid crystal display device having 320 × 200 pixels by additive color mixture was obtained.

Embodiment 2 As shown in FIG. 1, C, M,
Each of the dye layers of Y and Bl is formed and arranged in the same manner as described above in correspondence with the pixel, and a leveling layer for uniforming the height of the dye layer is formed at 1 to 5 μm.
ITO was patterned to form a first substrate. A liquid crystal having a refractive index of 1.582 and Δn of 0.24 was formed on the substrate.
A mixed system using cyanobiphenyl nematic liquid crystal of No. 0 and polyvinyl alcohol as an encapsulating material was dried by heating the solvent by a casting method to form a scattering liquid crystal layer.
The film thickness at that time is 5 to 50 μm, preferably 7 to 20 μm.
m. Next, a film is formed on the second substrate,
A liquid crystal cell was manufactured by closely attaching and fixing the second substrate having the above-mentioned structure and the like by a lamination method using a vacuum state.

This color dispersion type liquid crystal display device becomes turbid due to a scattering state when no electric field is applied, and the existing dye layer cannot be confirmed. The transparency at this time is desirably
0.1-1%, actually 0.1-5%. When an alternating voltage was applied between these electrodes and the degree of scattering was controlled by adjusting the voltage, each dye layer on the first substrate could be gradually confirmed,
In a completely transmitted state, each dye layer could be clearly confirmed. Further, by switching each pixel including control of the applied voltage, a color dispersion type liquid crystal display device by additive color mixture was obtained. Example 1 above
In Example 2, two substrates were used. However, the present invention is not particularly limited to this configuration, and a dye layer, a first electrode, a dispersed liquid crystal layer, and a second electrode were formed on one substrate. The liquid crystal electro-optical device described above can achieve exactly the same effects as the present invention.

Example 3 In this example, a two-color liquid crystal electro-optical device was manufactured. A black printing ink was applied to the entire substrate by a roll coater as a used dye layer. After drying the ink, a transparent PVA (polyvinyl alcohol) resin is used as a protective layer on the surface.
After forming 3 μm, ITO was formed by a known method and then formed into a predetermined pattern to obtain a first substrate. Next, 10 ml of the cyanobiphenyl-based nematic liquid crystal is mixed with a chloroborm solution (20%) of a modified acrylate-based resin, and the mixture is stirred for 1 minute to disperse the cyanobiphenyl liquid crystal and apply it to a glass substrate with ITO. . A spin coater (40
00 rpm). As a result, the average film thickness was 11.0.
A uniform liquid crystal polymer dispersion film of ± 0.3 μm was obtained.

Next, an ITO film having a thickness of 100 nm was formed on the polymer film by RF sputtering. Further, a chloroform solution (15%) of a modified acrylate resin was applied thereon. In order to obtain a uniform film thickness, a spin coater (2000 rpm) was used. In order to use this film as a protective film, the same process was repeated five times to obtain a thickness,
A 2.5 mm polymer film was obtained.

The optical characteristics of the liquid crystal electro-optical device manufactured as described above were measured as follows. Rated 12V100W
DC12V is applied to the halogen lamp, incident light from the halogen lamp is vertically incident on the substrate, and a luminance meter is installed at a position 1 m away from the substrate at an angle of 30 ° from a direction perpendicular to the substrate. Was used to measure the reflectance. When a rectangular wave of 30 V and 37.5 Hz was applied to the substrate, the reflectance was about 65% until no electric field and about 5% when an electric field was applied, when the direct light was set to 100. At this time, the black color of the underlying dye layer could be clearly recognized. Similarly, when no electric field was applied, light was scattered directly, and white was able to be expressed.

Example 4 In this example, an aluminum substrate was used as a substrate, the surface of which was subjected to a blackening alumite treatment, and the surface was insulated simultaneously with the formation of a black pigment layer. A predetermined pattern is formed on the surface of this insulating stick.
A substrate on which TO was formed was used. Next, 0.35 g (weight ratio: 73%: 27%) of a mixed liquid crystal of a cyanobiphenyl-based liquid crystal and a cyanophenyl ester-based liquid crystal was mixed with 10 cc of a chloroform solution (20%) of a urethane-based resin, followed by stirring for 1 minute. Then, the mixed liquid crystal is dispersed and applied to the above-mentioned substrate. In order to obtain a uniform film thickness, a spin coater (4500 rpm) was used. As a result, a uniform liquid crystal polymer dispersed film having an average film thickness of 10.5 ± 0.2 μm was obtained.

Next, an ITO film is formed on this polymer film by 150n.
m. Further, a chloroform solution (15%) of a modified acrylate resin was applied on the film. A spin coater (2000
rpm). This process was repeated five times to use this film as a protective film. As a result, a modified acrylate polymer film having a thickness of 2.5 mm was obtained. The optical characteristics of the liquid crystal electro-optical device prepared as described above were measured in the same manner as in Example 3. As a result of applying a rectangular wave of 30 V and 37.5 Hz to the substrate, when the direct light was assumed to be 100, there was no electric field. Up to 60%, and 5% when an electric field was applied. In Embodiments 3 and 4 described above, one substrate was used. However, the present invention is not particularly limited to this configuration, and two substrates may be used. In this case, at least the second substrate is used. The substrate must necessarily be translucent.

[0031]

According to the constitution of the present invention, clear black can be expressed in the reflection type dispersion type liquid crystal electro-optical device. For this reason, it was possible to provide clearer and higher-contrast information at the time of two-color display of black and white and colorization using another dye layer.

Further, since no polarizing plate was used, a bright reflective color liquid crystal display with little light loss was obtained. That is, a liquid crystal panel with a milky white background and a paper-like impression was completed. In addition, since color is expressed by a liquid crystal electro-optical device using the same method as that for printed matter in colorization, it is difficult to express with additive color mixing using conventional RGB, and it reproduces deep colors like printed matter. I was able to.

In addition, since it is of a reflective type, it does not use a backlight, so it is thinner than a conventional liquid crystal display.
Lighter weight and lower power consumption were realized.

[Brief description of the drawings]

FIG. 1 is a schematic top view of a liquid crystal electro-optical device according to the present invention.

FIG. 2 is a schematic sectional view of the liquid crystal electro-optical device of FIG.

FIG. 3 shows an example of optical characteristics of the liquid crystal electro-optical device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Cyan dye layer 2 ... Magenta dye layer 3 ... Yellow dye layer 4 ... Black dye layer 5 ... Protective layer 6 ... Transparent first electrode 7 ... Dispersion type liquid crystal layer 8 1st substrate 9 2nd substrate 10 translucent 2nd electrode

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shunpei Yamazaki 398 Hase, Atsugi-shi, Kanagawa Referee, Ms. Mimi Takahashi, Judge, Semiconductor Energy Laboratory Co., Ltd.Judge, Yoshiyuki Kawakami Judge, Shujiro Yokobayashi (56) JP-A-3-84520 (JP, A) JP-A-3-68920 (JP, A) JP-A-58-501631 (JP, A) Japanese Utility Model Laid-Open No. Sho 62-19629 (JP, U)

Claims (6)

(57) [Claims] A first substrate, a plurality of dye layers, including at least black, formed on the first substrate and arranged in a matrix, and arranged in a matrix corresponding to the dye layers; a first electrode comprising a plurality of light-transmitting conductive layer, before Symbol provided to face the first substrate, a second light-transmitting substrate having a second electrode of the light-transmissive, wherein said a light modulation layer consisting of arranged dispersed liquid crystal in between first and second substrates, double for switching said liquid crystal through said first electrode
A liquid crystal electro-optical device comprising: a plurality of thin film transistors; and a color image formed by the dye layer is recognized when viewed from the second substrate side. 2. A reflection-type liquid crystal electro-optical device , comprising: a first substrate; a plurality of dye layers including at least black formed on the first substrate and arranged in a matrix; A first electrode formed on a first substrate; a light modulation layer made of a dispersion liquid crystal adjacent to the first electrode; and a light modulation layer opposed to the first electrode and arranged via the light modulation layer. A liquid crystal electro-optical device, comprising: a second electrode formed on the substrate; and a plurality of thin film transistors for switching the light modulation layer. 3. A first substrate, a plurality of cyan, magenta, yellow, and black dye layers formed on the first substrate and arranged on the first substrate, and a matrix corresponding to the dye layers. arranged, a first electrode composed of a plurality of light-transmitting conductive layer, before Symbol provided to face the first substrate, the second light-transmitting substrate having a second electrode of the light-transmitting When, a light modulation layer consisting of the first and second arranged dispersed liquid crystal between the substrates, double for switching said liquid crystal through said first electrode
A liquid crystal electro-optical device comprising: a plurality of thin film transistors; and a color image formed by the dye layer is recognized when viewed from the second substrate side. 4. A reflective liquid crystal electro-optical device , comprising: a first substrate; and a plurality of cyan, magenta, yellow, and black dyes formed on the first substrate and arranged in a matrix. A layer, a first electrode formed on the first substrate, a light modulating layer made of a dispersion type liquid crystal adjacent to the first electrode, and a light modulating layer facing the first electrode. And a plurality of thin film transistors for switching the light modulation layer. 5. A method according to claim 3 or 4, cyan arranged in a matrix, magenta, yellow, arrangement of black plural <br/> dye layer, N +3 from N columns of M th Matokurisu
In the case of the arrangement of cyan, magenta, yellow, and black toward the columns, the arrangement of yellow, black, cyan, and magenta from the N column in the ( M + 1) th row to the N + 3 column is performed.
A liquid crystal electro-optical device wherein the arrangement is shifted by two. 6. The liquid crystal electro-optical device according to claim 2, wherein the liquid crystal electro-optical device has a second substrate facing the first substrate via the light modulation layer. apparatus.