JPS58102214A - Production of multicolor image display - Google Patents

Abstract

PURPOSE:To obtain a good multicolor image display by providing a layer to be dyed on the surface of the substrate of a liquid crystal cell on the side formed with electrodes, dyeing the same to required arraying states and forming color filter layers. CONSTITUTION:A conductive film of SnO2, etc. is vapor-deposited on a glass substrate 21 and many fine electrodes 22 are formed. A dyeing agent 31 prepd. by adding a sensitizing agent to gelatin, polyvinyl alcohol etc. is coated thereon and is dried. UV rays U are irradiated only to the top surface parts of the respective electrodes 22 by using a mask plate 32, and the agent 31 in said parts is cured. The unexposed parts are dissolved away, and layers 33 to be dyded are formed only on the electrodes 22. Photoresistor 34 of oily positive type is coated thereon and the layers 33R to be dyed with red are irradiated with the light U through a mask plate 34 and are developed to elute the exposed parts to form a resist mask; thereafter, said parts are dyed to red. The color filter layers of red, green and blue are formed by repeating these operations. The good multicolor image cell is obtained by forming the liquid crystal cell using such substrates.

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, electrodes are formed on opposing surfaces of a pair of parallel substrates, a thin film-like color filter layer is formed on at least one of these electrodes, and a thin color filter layer is formed between the electrodes. A multicolor image display device that controls the amount of transmitted light or reflected light from a liquid crystal material filled between substrates by the intensity of the applied voltage, and < K % 11 A film-like color filter layer is formed by a dyeing method. The present invention relates to a method of manufacturing a multicolor image display device.

Combi is a multicolor image display device using liquid crystal.

-Various display devices for computer terminals, Previsi.

It has applications in applications such as cameras and video monitors, and research and development has been progressing in recent years. An example of this multicolor image display device is shown in FIGS. 1 and 2. Figure 2 shows part of the A
- A is a vertical cross-sectional view, in which a pair of substrates (company) face each other in parallel, and a large number of fine electrodes (2) are formed on each of the opposing surfaces, and one of these electrodes (2) is red (R1 edge (G, A color filter layer (to) consisting of the three primary colors beyond blue is formed.

In addition, a liquid crystal (
) is injected, and its periphery is sealed with a sealing material (c) that also functions as a spacer. Further, FIG. 1 shows a part of the multicolor image display device B-B.
FIG. As shown in the figure, a multicolor image display device has a large number of microscopic areas αυ corresponding to so-called pixels of the original image.
Each minute area αB consists of red [F], edge IQ, blue ■
It has three color filter layers. In the multicolor image display device configured in this way, when a predetermined voltage is applied between each electrode @ on which the color filter layer (to) is formed and the electrode □□□ facing it via the liquid crystal. Then, the amount of transmitted light or reflected light of the liquid crystal is controlled, and as a result, a multicolor image is displayed on the substrate Al.

The quality of such a multicolor image display device often depends on the color filter layer I, and the following conditions are generally known as a guideline in this case.

First, since the color filter layer is located between the electrodes, the driving voltage required increases as the film thickness increases, so in order to prevent this from becoming too high, the film thickness should be compared to that of the liquid crystal layer. It must be made sufficiently thin, and according to experimental results, it is desirable to have a thickness of 0.6 μm or less, which is taken as νA.

Second, in order to display complex multicolor images, each color filter layer needs to be formed extremely minutely. Must be able to do it. Thirdly, in order to faithfully reproduce a multicolor image, the colors of each color filter layer must have sufficiently high color purity and excellent color balance. Fourth, it is necessary to make the film thickness of each color filter layer uniform so that the driving voltage to be applied between the electrodes does not vary, and the variation in the film thickness of each color filter layer is usually reduced by the thickness of the liquid crystal layer. It is said that it is desirable that the length be within 1 liter.

Fifth, it can be mass-produced at a practical cost.

However, it is difficult to form a color filter layer that satisfies the above conditions using conventional methods. That is, according to the screen printing method, although it is possible to form a color filter layer at low cost, the film thickness cannot be made thin, and the uniformity tC of the film thickness is also inadequate. Furthermore, the multilayer film interference method in which metal oxides are deposited in multiple layers increases the thickness of the color filter layer and increases the manufacturing cost, making it impractical. Furthermore, in this method, thermal energy is irradiated onto the support coated with the sublimable dye through a predetermined mask plate, thereby sublimating the dye and depositing the dyed area in a cloudy manner. It is difficult to dye different colors, and there are also problems in terms of thin film properties.

The present invention has been made with the object of providing a method for manufacturing a good multicolor image display device by forming a color filter layer that satisfies all of the above conditions.

Hereinafter, the configuration of the present invention will be explained with reference to the drawings.

FIG. 3 to FIG. 9 are diagrams showing a part of a vertical cross-section of the -IiJ embodiment showing each step of the manufacturing method according to the present invention for a multicolor image display device.

First, as shown in FIG. 3, the glass substrate C! υ upper + c
0.15m conductive film such as Snug or In201
After uniform vacuum deposition to a thickness of m degrees, a large number of fine electrodes are formed by a flat etching method.

As shown in Figure 4, a dyeing agent (Ill), which is a water-soluble protein such as gelatin to which a locate or diazo compound is added as a photosensitizer, is applied to a water-soluble protein such as gelatin using a coating device such as a spinner. After coating and drying to a film thickness of 6 μml or less to cover electrode (2), expose only the portion covering the upper surface of each electrode (@) to light i*u using a prescribed mask plate (1). , harden the dyeing agent (Il+) in that part.The reason why protein is used as the dyeing agent here is that the protein is easily dyed in a deep color and can be easily thinned and uniformly thickened in hot weather. Then, the unexposed areas are dissolved away, and a layer to be dyed consisting of a hardened film of gelatin or the like is formed on each electrode as shown in Fig. 5. do.

In this case, in order to increase the dyeing ability of the layer to be dyed (to) and to make the thickness of the layer to be dyed (to) thinner, polydimethyldiathallylammonium chloride was added to the dyeing agent 3υ. A water-soluble aquarium having at least one of a quaternary ammonium salt of methyl glycol chitosan and an amino group.

Polymers may also be added.

Next, as shown in Fig. 6, a positive oil-based photoresist is coated and dried on the dyed layer, and a separate layer is applied to each color of the filter, such as red, green, and blue.
Using the first color of the created mask plates, for example, the mask plate (to) for red, dye the layer to be dyed (33) to be dyed red.
Only R) is exposed to light U and developed to ferment the exposed areas, thereby creating a dye-resistant mask (to) as shown in FIG.

After that, the layer to be dyed (33R) that is not covered with the anti-dyeing mask (to) is dyed with an appropriate dye so that it becomes a red color filter layer exhibiting the desired color density, and after the dyeing is completed, Peel off the anti-dye mask (to) using a peeling solution.

Hereinafter, in the formation of the second color (green) and third color (blue) oak filter layers, the steps of creating a dye-resistant mask, dyeing, and peeling off the dye-resistant mask are repeated in the same manner as above, and in order.
Form green and blue color filter layers.

In addition, in the above dyeing process, if the dye for dyeing the layer to be dyed (to) is purified, the layer to be dyed (to)
can be dyed a deeper color, making the film thinner. Therefore, unlike in the case of ordinary dyeing of textiles, it is desirable to thoroughly purify each dye in order to remove additives such as auxiliaries contained in the dye.

In addition, after dyeing, there is a slight amount of 11ζ in the color filter layer (2), so you can heat it if necessary to tighten the color filter layer (2) and make it even thinner and stronger. .

Nobuko Sachi, alignment II for one liquid crystal (to)! As shown in Figure 8, polymeric materials such as polyimide resin, acrylic resin, epoxy resin, etc. By applying an insulating inorganic compound such as or 5i02 with a spinner or by vacuum deposition,
The alignment film should be formed so that the film thickness is approximately 0.1 μm or less (V).

Finally, as in the case of a normal display/panel using a liquid crystal, the surface is rubbed and a sealing material such as epoxy resin that functions as a spacer material is applied using the screen printing method.
After laminating them together, liquid crystal (support) is injected and sealed.

Through the steps described above, a one-color image display device as shown in FIG. 9 can be manufactured.

In this way, the present invention focuses on the property that tannobeta can be easily dyed in a scale color and that it can be easily formed into a thin film with a uniform thickness. The material to be dyed, which contains quaternary ammonium salts and amino groups (which may be added or added), also requires the use of sufficiently purified dyes. It is also possible to mass-produce a multicolor image display device provided with a color filter layer that satisfies the above-mentioned conditions, which are considered to be extremely difficult, through a relatively simple manufacturing process and at low cost. Furthermore, the characteristics of the multicolor image display device manufactured by the method of the present invention are excellent in both color purity and color ζ lance, as described in the following examples.

Next, one embodiment of the present invention will be described in terms of ν1.

First, an Into transparent electrode layer is formed using a commonly used manufacturing method for liquid crystal electrodes.

On this electrode (2), Grüni ammonium dichromate adjusted to a viscosity of 40 Cp was added at a weight ratio of 30 l.
Further, in order to enhance the dyeing ability, a solution containing 1 part of coco-methyl glycol chitosan to the total amount was applied using a spinner to a film thickness of 0.1 μm and dried. This surface 1
This is exposed through a predetermined mask plate (2), and after curing the dyeing agent (II) on the upper surface of the electrode ii@, the unexposed portion is eluted to form a layer to be dyed.

Next, an oil-based positive photoresist is applied onto the layer to be dyed using a spinner and dried.

Then, a mask plate (3
5R), the photoresist in the portion of the layer to be dyed (33R) to be dyed red is photolyzed, and removed by development to form the portion C83 of the layer to be dyed in red.
An anti-dye mask (to) is formed on the parts other than R). Kaymkalan Orange RL (Kaymkalan Orange R) purified using methylalpur
L) (Nippon Kayaku products) 1.5 parts and Aminyl Brilliant Red F-4B (Aminy Br1l
lant Red F-4B) (Sumitomo Chemical product name)2.
A red dye solution (5
0° C.) for 20 minutes to dye the part (33R) of the layer to be dyed red in red, and then the resist mask for red dyeing (to) is peeled off.

Thereafter, green and blue staining is sequentially performed in the same manner. In this case, in order to dye the layer to be dyed green, use Suminol Milling Yep-MR (Suminol Milling Iep-MR).
lling Yellow MR) (Sumitomo Chemical product name) was added to the Kayakalan Orange R (Kay
akalan Orange R) purified by the same method as that used for purification, and Sandlan Brilliant Blue N-sGM (SmndN-5G Br1
llant Blue NN-5G ) (Sand
Company S product name) 0.125 parts and Que 7 Meng 1. This is done by immersing the sample in a green dye solution (60° C.) consisting of Part Q and 110 parts of water for 20 minutes. In addition, for blue dyeing, use Sandlan Cyanine NG 3601 (San
dolan Cyanine N-G360-X 5a
This is done by immersing the sample in a blue dye solution (50° C.) consisting of 1.0 part of NDY (product name) and 100 parts of water for 20 minutes.

At the time when the specified dyeing is completed, the layer to be dyed (to), which was originally 0.1 μm in thickness, swells to about 0.3 μm in color filter layer C (3), so this color filter layer (
) must be heated at 150° C. for 20 minutes to tighten the film thickness to about 0.2 μm.

After this, polyimide resin was applied onto the color filter layer tray with a spinner to a film thickness of 0.1 #m, and 2
By heating at 20° C. for 20 minutes, an alignment film is formed. After that, regular liquid crystals were manufactured using the same manufacturing process as for display panels, and red color was produced.

It is possible to manufacture a device capable of displaying a multicolor image using three colors: border and blue.

In the above examples, an oil-soluble protective agent was used as a water-soluble dyeing agent, but the present invention is not limited to this. It's okay.

However, in this case, it is necessary to use an oil-soluble dye and a water-soluble organic polymer, such as polyvinyl alcohol, as the alignment film. Further, the photoresist may also be a negative type instead of a positive type ν1. Furthermore, the materials and shapes of the glass substrate and electrodes may be those used for general liquid crystals and channels, and are not limited to specific ICs. For example, on tf, thin 11 transistor -
This method can also be applied to the construction of a liquid crystal panel having a color fill/light layer.

As described above, by manufacturing a multicolor image display device as in the present invention, the film thickness of the color filter/retardation layer can be made sufficiently thin, and each color filter layer can be made thinner than the other by one color. You can sip it. Further, according to the multicolor image display device manufactured in accordance with the above embodiment, the variation between the film thicknesses of the color full layers is ±004μ00.
The color purity of each color fill/letter layer was sufficiently high and the color balance was good, as shown in FIG. 10, an example of which is shown in FIG. Furthermore, as mentioned above, the manufacturing process is relatively simple, and it can be mass-produced at low cost, making it extremely practical. In a stupor like this,
According to the present invention, an excellent multicolor image display device can be provided.

[Brief explanation of the drawing]

1- and 2 respectively show an example of a multicolor dual-image display device, and are a cross-sectional plan view taken along the line R-B and a longitudinal cross-sectional view taken along the line A-A showing a part of the device, and FIGS. Until the figure,
This is an embodiment showing the present invention and the manufacturing method of a multicolor image display device step by step, and is a diagram showing a part of a vertical cross section, and the first θ diagram shows the color purity and color balance of the color filter layer. It is a chromaticity diagram showing one example. (ill...micro area (company)...substrate■
...Electrode (to)...Color filter layer (
To)...Liquid crystal 4...Sealing material that functions as a spacer material■...Alignment film 3υ...Dyeing agent■, Ca...
...Mask plate (to)...Dyeing layer Figure 1 Figure 2 Figure 3 Figure 9! Figure 10 Procedural amendment (voluntary) June 1987 1987 Patent Application No. 201987 Bow 2. Title of the invention Method for manufacturing a multicolor image display device 3. Relationship with the case of the person making the amendment Patent issuer 4. Agent (1) Amend the entire specification as attached. (2) Revise Figure 1 of the drawing as shown in the attached sheet. 9. List of attached documents (1) Amended statement ・・・・・・・・・・・・・・・・・・
...1 copy (2) Corrected drawing (Figure 1)...
...1 Weekly specification (needle stop) 1. Name of the invention Method for manufacturing a multicolor image display device 2. Claims (1) The amount of transmitted light or reflected light of a liquid crystal etc. is determined depending on the strength of the applied voltage. In a device that displays a multicolor image using the control principle, a layer to be dyed is formed in the form of a thin film on the surface of the electrode or the liquid crystal side of the substrate containing the electrode, and the layer to be dyed is coated with a predetermined dye. It is characterized by being dyed in a desired arrangement state to form a color filter layer.
Method for manufacturing a multicolor image display device (2) A method for manufacturing a multicolor image display device according to claim 1, wherein the dyed layer is formed in addition to the cured film. (3) The method for manufacturing a multicolor image display device according to claim 1, wherein an organic polymer having at least one of a quaternary ammonium salt and an amino group is added to the layer to be dyed. (4) A method for manufacturing a multicolor image display device according to claim 1, which is dyed with a purified dye (5) An alignment function and an anti-staining function for the liquid crystal material are provided on at least the color filter layer. 9. A method of manufacturing a multicolor image display device according to claim 1, wherein a coating film having the following properties is uniformly formed. 3. Detailed Description of the Invention The present invention comprises a pair of parallel substrates, each of which has electrodes formed on opposing surfaces thereof, a thin color filter layer formed on at least one of these electrodes, and a thin color filter layer formed between the electrodes. A multicolor image display device that controls the amount of light transmitted or reflected from a liquid crystal material filled in a substrate barrier depending on the strength of the applied voltage;
The present invention relates to a method of manufacturing a multicolor image display device in which a thin film color filter layer is formed by a dyeing method. Multicolor display devices using liquid crystals have applications in various display devices for computer terminals, television screens, video monitors, etc., and research and development has been progressing in recent years. An example of this multicolor 1iIi display device is shown in FIGS. 1 and 2. FIG. 2 is a longitudinal cross-sectional view taken along the line A-m showing a part of the same, in which a pair of substrates (2) face each other in parallel, and a large number of fine electrodes (supports) are formed on each of the opposing surfaces.
On one of these electrodes (2), a color filter layer 4 consisting of the three primary colors of light, red, green, Q, and blue (5) is formed. A liquid crystal (2) is injected into the gate 11 connected by the pair of parallel substrates (2), and its peripheral edge is sealed with a sealing material (A) that also functions as a spacer. In addition, Iris 1 shows part of the multicolor image display device B-
B is a cross-sectional plan view. As shown in the figure, the multicolor 11II display device has a large number of microscopic areas (6) corresponding to the so-called pixels of the original picture, and each microscopic area (6) is red, green,
It has three color filter layers (of evening). In the multicolor thief display device configured in this manner, a predetermined voltage is applied between each electrode (2) on which a color filter layer is formed and the electrode (2) facing it via the liquid crystal. When the light is applied, the amount of transmitted light or reflected light of the liquid crystal is controlled, and from this the multicolor 01 color is displayed on the substrate. The quality of such a multicolor image display device often depends on the color filter layer, and in this case, the following conditions are generally known as a guideline. Since the driving voltage required increases as the film thickness increases, the film thickness must be made sufficiently thinner than the liquid crystal layer to prevent this from becoming too high. According to the above, it is desirable that the thickness be 0.6 μm or less. Secondly, in order to be able to display complex multi-color internal images, each color filter layer needs to be formed extremely minutely, and as a result, each color filter layer must be finely divided into colors. Must be able to do it. Fifth, in order to faithfully reproduce a multicolor image, the colors of each color filter layer must have sufficiently high color purity and excellent color balance. Fourth, it is necessary to make the film thickness of each color filter layer uniform so that there is no variation in the driving voltage to be applied between the electrodes. It is said that it is desirable that it be within 1 hour. Fifth, it can be mass-produced at a practical cost. However, it is difficult to form a color filter layer that satisfies the above conditions using conventional methods. That is, according to the screen printing method, although it is possible to form a color filter layer at low cost, the film thickness cannot be made thin, and there are also problems regarding the uniformity of the film thickness. Furthermore, the multilayer film interference method in which metal oxides are deposited in multiple layers is not practical because the color filter layer becomes thick and the manufacturing cost is high. The present invention has been made with the object of providing a method for manufacturing a multicolor image display device that is better than K when forming a color filter layer that satisfies all of the above conditions. Hereinafter, the configuration of the present invention will be explained with reference to the drawings. FIG. 3 to FIG. 9 are views showing a part of a vertical cross section, showing an embodiment of the manufacturing method according to the present invention for a multicolor image display device according to each step. First, as shown in Figure @3, the glass substrate Qυ is placed on the glass substrate Qυ.
O! , X n t Os or the like is uniformly vacuum-deposited to a thickness of 0.1 μm, and then 1) fine electrodes (b) of f number are formed by photo-etching. Next, as shown in Figure 4, a dyeing agent is prepared by adding a dichromate or diazo compound as a photosensitizer to a water-soluble protein such as gelatin or a resin such as polyvinyl alcohol (hereinafter referred to as PTA). 01 was coated with VC to a film thickness of 0.6 μm or less using a coating device such as a spinner, dried, and covered with the electrode (2). Then, each electrode ring was coated using a predetermined mask plate (2). Only the part that covers the upper surface is fogged with busy ray 0, and the dyeing agent CIO is applied to that part.
harden. Here, protein JJ is used as dyeing agent 0υ.
This is because resins such as ILi or PV resin are easily dyed in deep colors and can be easily formed into a thin and uniform thickness. and,
The unexposed portions are dissolved away to form a layer to be dyed consisting of a hardened coating of the dyed agent on each electrode as shown in FIG. In this case, in order to increase the dyeing ability of the layer to be dyed (to) and to make the thickness of the layer to be dyed (to) thinner, dyeing agent 01JC polydimethyldiacrylammonium chloride The quaternary ammonium salt of methyl glycol chitosan may be added with an organic polymer having at least one of the amino groups.Subsequently, as shown in Figure 6, an oil-based coating is applied onto the layer to be dyed. Apply a positive photoresist (B), dry it, and then apply the mask plate (2) for the first color, for example red, of the mask plates that were created separately for each color of the filter, such as red, green, and back color. layer to be dyed in red (55R) using
The exposed area is melted away using a light beam, and then the exposed area is melted away to create a dye-resistant mask as shown in Figure 7. After that, the layer to be dyed (33R) that is not covered with the dye resist mask (33R) is dyed with an appropriate dye so that it becomes a red color filter layer exhibiting the desired color color, and after the dyeing is completed. , remove the resist dye mask (to) using a peeling solution.Hereafter, in the formation of the second color (green) and third color (blue) color filter layers, the preparation of the resist mask, dyeing, and Repeat each step of peeling off the dyed mask in the same way as above, sequentially,
Form green and blue color filter layers. In addition, in the above dyeing process, if the dye in the circle □ that dyes the layer to be dyed (to) is purified, the layer to be dyed -
Since the dye can be dyed a deeper color, the film thickness can be made much thinner. Therefore, it is desirable to sufficiently purify each dye in order to remove additives such as auxiliary agents contained in the dye, which are different from the case of ordinary dyeing of fibers. Also, after dyeing, there is some swelling of the color filter layer. The color filter layer (2) is tightened by heating according to the K, and the color filter layer (2) is heated to
can be made even thinner and stronger. Furthermore, if we add an alignment function to 1 liquid crystal, 1
In order to prevent the dye in the color filter layer from eluting into the liquid crystal, organic materials such as polyimide resin, acrylic resin, epoxy resin, PVM, organic silane resin, etc. or 8101 are used as shown in Figure 8. The insulating inorganic compound is coated with a spinner, and the insulating inorganic compound is vacuum-deposited.
The oriented M@ is formed so that the film thickness is about 0.1 μm or less.Finally, one surface is rubbed in the same way as in the case of a normal display panel using liquid crystal, so that it functions as a spacer material. After applying a sealing material such as epoxy resin by screen printing and pasting them together, liquid crystal is injected and sealed. Without going through the above steps, it is possible to manufacture a multicolor image display device as shown in Figure 9.◇ In this way, the present invention allows resins such as proteins or PV to be easily and densely processed. Focusing on the property of being dyed in color and the property of being able to easily form a thin film with a uniform thickness, these cured films constitute the dyed layer, and the amino group in the quaternary ammonium salt is added to the material to be dyed. By adding appropriate organic polymers containing organic polymers, or by using sufficiently purified dyes, multicolor 1i1i (1 The display device can be mass-produced with a relatively simple manufacturing process and at low cost.Furthermore, the multicolor image display device manufactured by the method according to the present invention has the characteristics of color purity and color balance, as described in the examples below. Next, an embodiment of the present invention will be described. First, a transparent electrode 4 of In, 0.0. 2)
A solution in which ammonium chromate was added to the CPK-adjusted gris at a weight ratio of 30:1, and 1 part of methyl glycol chitosan was added to the total amount to further increase the dyeing ability. using a spinner to a1μm
Apply to a film thickness of This surface is exposed to light through a predetermined mask plate (to), and the lateral unexposed areas where the dyeing agent (2) on the upper surface of the electrode (support) is cured are eluted using 50°C hot water. Dyed layer (2)
form. Next, using a spinner, an oil-based positive photoresist, OFPR (Tokyo Ohka product name) 04, is applied onto the layer to be dyed and dried. Then, it is exposed to light through a mask plate (35R) for forming a red color filter layer, photoresist is photodecomposed in the part of the layer to be dyed (55R) to be dyed red, and removed by development to turn it into red. An anti-dyeing mask (to) is formed on the parts other than the second part (35R) of the dyed layer to be dyed. Kayakalan Orange RL (Kayakalan Orange RL) purified using methyl alcohol
RL) (Nippon Kayaku product name) 1.5 parts and Aminyl Brilliant Red F-4B (Aminyl B
A red staining solution (50' C,) for 20 minutes and dyed red.
After dyeing the part of the layer to be dyed (33R) red,
Peel off the anti-dyeing mask (to) for red dyeing. Thereafter, green and blue staining is sequentially performed in the same manner. In this case, the K that dyes the layer to be dyed green is Suminol Milling Yellow MR (8 parts minor Mil
ling Yslow MR) (Sumitomo Chemical product name) 3
grams, the Kayakaran Orange R (pot is mluo
rang・R) was purified in the same manner as 9.
() M (8andO1an Br1l11ant
Blue N-5GM) (8anlog product name)
0.125 parts of citric acid, 1.0 parts of citric acid, and 110 parts of water (60°C) for 20 minutes. In addition, K for dyeing blue is Sandolan Cyania N-G560% (Sandolan Cyania N-G560%).
7JIlinIN-G 56Q%) (aando
This is done by immersing the sample in a blue dyeing solution (50° C.) consisting of 1.0 parts (product name of Company G) and 100 parts of water for 20 minutes. When the specified dyeing was completed, the layer to be dyed, which was initially 0.1 μm thick, swelled to 0.3 μm and 11 degrees, so this layer to be dyed was heated at 150°C for 20 minutes. It is necessary to tighten the film thickness by α2 μm [1]. The layer to be dyed (to) is dyed and heated in this manner, and the completed Ll color filter layer is coated with polyimide resin diluted with N-methyl-2-pyrrolidone and DMAC using a spinner to a film thickness of 0.1 μm. An alignment film is formed by heating the Kf11 cloth at 1200° C. for 20 minutes. At this time, the polyimide resin diluted with such a solution,
When applied directly onto a color filter layer, the dye is eluted from this color filter layer.
A protective layer is formed on the color filter layer using an organic material such as Kingdom Paint (product name), and then an alignment film is formed. Thereafter, a device capable of displaying multicolor MS in the three colors of red, green, and blue can be manufactured through the same manufacturing steps as in the case of display panels using ordinary liquid crystals. In the above example, the color filter layer, that is, the layer to be dyed □□□ was formed using GREEU, and the alignment film (to) was formed using N-
Although it is made of a polyimide resin diluted with methyl-2-pyrrolidone and DMAC, the present invention is not limited thereto, and the alignment film (e) in the layer to be dyed (e) may be made of any of the above-mentioned materials. It may be used for dyeing personnel and alignment film (
Either one of the materials (e) may be water-bathable and the other may be oil-soluble, or both may be water-soluble or oil-soluble. However, depending on the combination of materials used, if the dye is leached into the alignment film (e), it is necessary to use a combination of materials between the color filter layer (to) and the alignment film (to) as in the above example. It is necessary to form a protective layer on the However, in the case of both and 4 water-soluble materials, if the coating film conditions are devised, such as by quickly brushing and drying when forming orientation IX (e), both materials can be water-soluble. However, since the dye does not elute, there is no need to form such a protective film.Furthermore, a negative type photoresist may be used in place of the positive W photoresist. Furthermore, the materials and shapes of the glass plate and the electrodes may be those used in general liquid crystal panels, and are not limited to %. It can also be applied to the case of configuring a panel.As mentioned above, when a multicolor image display device is manufactured as in the present invention, it is possible to make the film thickness of the filter layer sufficiently thin. Each color power 2-filter layer can be finely color-coded. Furthermore, according to the multicolor image display device manufactured according to the above embodiment, the force ') -7
The variation between the film thicknesses of the four filter layers is within ±0.04μ, and the color purity of each color filter layer is also within 10th grade.
As one example is shown in the figure, the pressure was sufficiently high and the color balance was also good. Furthermore, as mentioned above, the manufacturing process is relatively time-consuming, and it can be mass-produced at low cost, making it very practical. As described above, the present invention can provide an excellent multicolor image display device. 4. Brief Description of the Drawings Figures 1 and 2 each show an example of a multicolor image display device, and are a sectional plan view and a vertical sectional view taken along line B-B and MuA, respectively, showing a part of the device. 3 to 9 show an embodiment of the manufacturing method according to the present invention for a multicolor image display device step by step, showing a part of a vertical cross section, and FIG. 10 shows a color filter. It is a chromaticity diagram which shows an example of the color purity and color balance of a layer. (ILI...micro area (c)...substrate (
2)...Electrode Iwa...Color filter layer (c)...Liquid crystal (c)...Seal material that functions as a spacer material (to)...Alignment film 6p...covering Staining agent (To) (To)・・・Mask plate (To)・・・Layer to be dyed (color filter layer)
(B)...Protected mortar (To)...Resistant mask Diagram 1 Procedural amendment (voluntary) II, “lIn5 17/3-11 Commissioner of the Japan Patent Office 1, of the case Display Show II 56 + "Patent Application 7.201987'
Bow 2, Title of the invention: Method for manufacturing a multicolor image display device 3,
Relationship with the case of the person making the amendment Patent applicant 1 agent 8 Contents of the amendment (11 The scope of claims column of the specification is corrected as shown in the attached sheet. 9. List of attached documents (1) Amended scope of patent claims −−1−−−−−−−
-1 letter 2, scope of claims (correction) Forming a thin film to display a multicolor image using the principle of controlling the amount of transmitted light or reflected light of a liquid crystal material, etc. by controlling the strength and weakness, and the layer to be dyed. 1. A method for manufacturing a multicolor image display device, which comprises dyeing with a predetermined dye in a predetermined arrangement state to form a color filter layer. (2) A method for manufacturing a multicolor image display device according to claim 1, wherein the layer to be dyed is formed by a cured film. (3) The method for manufacturing a multicolor image display device according to claim 1, wherein an organic polymer having at least one of a quaternary ammonium salt and an amino group is added to the layer to be dyed. (4) A method for manufacturing a multicolor image display device according to claim 1, wherein the method is dyed with a purified dye. 5) The method for manufacturing a multicolor image display device according to claim 1, wherein a coating having an alignment function 1 and a resisting function for liquid crystal material is uniformly formed on at least the color filter layer.

Claims (5)

[Claims] (1) In a device that displays a multicolor image using the principle of controlling the amount of transmitted light or reflected light from a liquid crystal material, etc. by the intensity of applied voltage, the surface of the substrate on the liquid crystal side, including electrodes, stains, etc. A multicolor image, characterized in that the layer to be dyed is formed into a thin film, and the layer to be dyed is dyed with a predetermined dye in a desired arrangement state, thereby forming a color filter layer. A method for manufacturing a display device. (2) A method for manufacturing a multicolor image display device according to claim 1, wherein the layer to be dyed is formed of a hardened protein film. (3) The method for manufacturing a multicolor image display device according to claim 1XJ, wherein an organic polymer having at least one of a quaternary ammonium salt and an amide 7 group is added to the layer to be dyed. (4) A method for manufacturing a multicolor image display device according to claim 11, wherein the method is heated to dye with a purified dye. (5) A method for manufacturing a multicolor image display device according to claim 1, wherein a coating having an alignment function and a resisting function for liquid crystal material is uniformly formed on at least the color filter layer.