JPH0894819A - Color filter and its production - Google Patents

Abstract

PURPOSE: To easily produce a color filter of high quality in a short time without white voids between a light-shielding pattern and color pixels by specifying the constitution of the color filter. CONSTITUTION: This color filter consists of a transparent supporting body 1 and at least a light-shielding pattern 3', transparent photoconductive layer 4, and color layers 5-7 formed in this order on the supporting body. The light- shielding pattern 3' and the color pixels 5-7 should be formed in such a manner that the one is on the lower side of the transparent photoconductive layer 4 and the other on the upper side of the layer 4. In the process of forming the color pixels 5-7, decay of the charge potential can be caused even on the transparent photoconductive layer 4 on the region of the light-shielding pattern 3' by charging an electrophotographic photoreceptor and exposing to light through a mask having the color pattern. Thereby, a color toner can be deposited without repelled by charges in the light-shielding pattern 3' during developing so that color pixels can be formed even on the area of light shielding pattern 3'. As a result, no space is produced but a color filter without voids can be obtd.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color filter which is mounted on a solid-state image pickup device, a liquid crystal display device or the like and used for color separation, color reproduction or reflectance reduction, and a manufacturing method thereof, and more particularly, The present invention relates to a method using at least an electrophotographic method when forming any of the colored layers or the light-shielding pattern.

[0002]

2. Description of the Related Art For example, many methods for manufacturing a color filter used in a liquid crystal display device have been proposed and some methods have been put into practical use. First, a method for producing a color filter by coating a transparent substrate with a photosensitive resin to form a desired pattern according to a conventional method, dyeing the pattern with, for example, red, and then forming green and blue in the same manner. (This is called the dyeing method). In addition to this, a method of forming a desired pattern by a conventional method using a photosensitive resin in which a pigment or other dye is dispersed in advance and sequentially forming colored pixels of green, red, and blue (this is a pigment dispersion method). Say),
After forming a desired pattern composed of a transparent conductive layer on a transparent substrate, a method of forming colored pixels by electrodeposition while energizing only the pattern to be colored (this is called electrodeposition method),
Alternatively, a method of manufacturing a color filter by offset printing or the like (this is called a printing method) has been proposed.

Among the color filter manufacturing methods which have been put into practical use, the dyeing method and the pigment dispersion method include coating of a photosensitive solution, soft baking, exposure, development and dyeing (the pigment dispersion method does not include a dyeing step. ) 3-4 hard bake
The color filter composed of red, green and blue (black) is manufactured by repeating the process. Here, the application of the photosensitive solution and its soft baking and hard baking require a relatively long time, and the process becomes long. In addition, it is difficult to apply the photosensitive solution uniformly to a large substrate.

In the electrodeposition method, ITO (so-called Indium-Ti) is used as a material for the transparent conductive layer provided on the transparent substrate.
n-Oxide) is commonly used. A film is formed using this material made of ITO, finely processed according to the color pattern, and then the colorant is electrodeposited by energizing the ITO pattern for each color for each color. Therefore,
Since the ITO pattern needs to be electrically connected at the terminal portion at the time of manufacturing, pixels of the same color must be connected to each other, which restricts the pixel shape and the pixel arrangement. Further, since the ITO of the patterns should not be conducted between the patterns of different colors, the patterning of ITO requires a high-level fine processing technique.

Further, in the case of the printing method, the steps of coating the photosensitive solution, exposing and developing, that is, the steps of the photolithography method are not necessary, and therefore the manufacturing process can be shortened as compared with the former method. However, since it is necessary to realize high shape accuracy and positional accuracy when processing a pattern, an extremely advanced manufacturing technology is required and an extremely special printing technology is also required.

Therefore, as a color filter manufacturing method which is easier to manufacture than the conventional technique, a method of manufacturing a color filter by an electrophotographic method has been proposed, for example, JP-A-48-48.
16529, JP-A-56-69604, JP-A-56-117210, or JP-A-63-
No. 234203.

In the manufacturing methods disclosed in these patent publications, an electrophotographic photosensitive layer (comprising a transparent photoconductive layer, preferably a transparent conductive layer is further formed on a transparent support such as glass). The surface of the electrophotographic photoconductor layer is charged, and a step of removing the electric charge in the non-pixel portion by exposure to draw an electrostatic latent image pattern of the electric charge, and a pixel portion At least a developing step of forming a colored pixel by adhering toner to the corresponding electrostatic latent image is necessary. By repeating these series of steps for each of the black, red, green and blue toners in sequence, electrophotographic exposure A pixel is directly formed on the body substrate to form a color filter. Colors other than red, green, and blue may be used, and yellow, magenta, cyan, and other colors may be appropriately applied in combination with various color numbers depending on the purpose of use and required specifications. Can be done.

Here, the substrate provided with at least the transparent photoconductor layer is particularly referred to as an electrophotographic photosensitive substrate. The developing method includes a developing method in which a toner having a charge opposite in polarity to the charge on the surface of the transparent photoconductor layer is attached (this is called a positive developing method), and There is a developing method in which a toner having a charge of the same polarity as that of the charged charge is attached (this is called a reversal developing method). This reversal development method is a method in which charges are removed only from a portion corresponding to a pixel portion to be colored and toner having a charge having the same polarity as the charged charges is attached to this portion.

Generally, as the material of the toner forming the pixels of the color filter, an organic dye and a binder resin soluble in a solvent are used in a dispersed manner, so that the insulating property of the formed pixel is rather than that of the binder resin. It is determined by the electric resistance value of the organic dye itself. In order to form four color pixels on the electrophotographic photosensitive substrate by repeating each step a plurality of times,
It is necessary to select an organic dye having a high insulating property and sufficiently charge the pixel at the same time as the transparent photoconductor layer in the subsequent charging process. In this way, by forming insulating pixels on the photoconductive layer, charging can be repeatedly performed, and the electric charge at the portion to be colored is removed by selective exposure. Pixels of multiple colors can be formed directly on top.

Here, in order to obtain a high contrast in an ordinary color filter, a "black matrix" (a stripe pattern separate from this) is formed between the red, green and blue pixels in a matrix pattern as a light shielding pattern. There is also a "black stripe"). It is already known that it is important to shield light that leaks unnecessarily from the color filter as completely as possible due to the presence of these light shielding patterns. This light-shielding pattern must have a high light-shielding property, and the above-mentioned unnecessary leakage of light should not occur from the boundary between the light-shielding pattern and each color pixel. For example, in the case of a liquid crystal display device, it is necessary to block the light of the backlight from the back side of the liquid crystal panel.

However, in the color filter manufactured by the electrophotographic method, according to the above-mentioned conventional technique, a gap called "white spot" by the present inventors is formed between the light-shielding pattern and the color-colored pixel. There was a problem of doing. When the color filter in which the "white spots" are generated is incorporated into a liquid crystal panel and operated, for example, the backlight light leaks from a gap formed between the light shielding pattern and the color coloring pixel. As a result, "white spots" cause changes in spectral transmittance characteristics and a decrease in contrast. This is a very serious problem that greatly impairs the commercial value of the color filter as a product.

The portion of the transparent photoconductor layer is then
When the color filter is completed, it is no longer necessary. Therefore, there is a demand to reduce the steps and labor involved in forming the transparent photoconductor layer as much as possible. Then, the transparent photoconductor layer has a negative effect that it reduces the transmittance of the color filter if it remains in the finished color filter.
When the transparent photoconductor layer remains in the color filter, there is also a demand to reduce the thickness of the transparent photoconductor layer as much as possible in order to prevent the transmittance from being lowered as much as possible.

[0013]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a color filter manufactured by using an electrophotographic method and a method for manufacturing the same with the light-shielding pattern. A problem is to easily and effectively prevent a problem caused by a gap between a colored pixel and the pixel.

In other words, a color filter that maintains the characteristic originally possessed by the electrophotographic system that a color filter can be manufactured more simply and in a shorter time than before, and that it is suitable for a large screen is also provided. It goes without saying that a manufacturing method is provided, and furthermore, the spectral characteristics of the color filter deviate (deteriorate) from the predetermined performance range due to the leakage of light from the gap existing between the light shielding pattern and the pixel. That a good contrast (high contrast) cannot be obtained, or that the film thickness becomes thicker due to the transparent photoconductor layer having a two-layer structure, and the peak transmittance characteristics of each color deteriorate. It is an object of the present invention to provide a color filter capable of easily and effectively preventing these and a manufacturing method thereof.

[0015]

[Means for Solving the Problems] Means provided by the present invention for solving the above problems are as follows. First, as described in claim 1, a light-shielding pattern and a transparent photoconductor layer are formed on a transparent support. , And the colored pixels are provided at least in this order. Further, preferably, as described in claim 2, the light shielding pattern is formed of a material exhibiting conductivity, and the color filter according to claim 1. Further, preferably, as described in claim 3, the light shielding pattern is formed of a photosensitive resin in which a black pigment is dispersed, and the color filter according to claim 1 or 2, is there. More preferably, as described in claim 4, a transparent conductor layer is provided on the transparent support, and a light-shielding pattern is provided on the transparent conductor layer. The color filter according to items 1 to 3.

Alternatively, as described in claim 5, there is provided a color filter characterized in that a colored pixel, a transparent photoconductor layer, and a light shielding pattern are provided at least in this order on a transparent support. . Further, preferably, as described in claim 6, the color pixel is formed of a material exhibiting conductivity, and the color filter according to claim 5. And preferably, as described in claim 7, the colored pixel is formed of a photosensitive resin in which a pigment for the color is dispersed. It is a color filter. More preferably, as described in claim 8, a transparent conductor layer is provided on the transparent support, and a colored pixel is provided on the transparent conductor layer. Item 5. The color filter according to any one of items 5 to 7.

Alternatively, in the method for manufacturing a color filter as described in claim 9, (a) a light-shielding pattern is formed on a transparent support, and (b) a transparent photoconductor layer is formed on the surface. (C) An electrostatic latent image pattern is formed by selectively charging and exposing the transparent photoconductor layer. (D) After that, the color of the pixel according to the electrostatic latent image pattern. A method of manufacturing a color filter is characterized in that the color pixels are formed by adhering toner of a color corresponding to the above (1) to (4). Preferably, as described in claim 10, the material of the light shielding pattern is a material exhibiting conductivity, and the method of manufacturing a color filter according to claim 9.
Further, preferably, as described in claim 11, a photosensitive resin in which a black pigment is dispersed is used as a material of the light shielding pattern, and the color filter according to claim 9 or 10, wherein It is a manufacturing method.

Alternatively, in the method for producing a color filter as described in claim 12, (e) a colored pixel is formed on a transparent support, and (f) a transparent photoconductor layer is formed on the surface. (G) An electrostatic latent image pattern is formed by selectively charging and exposing the transparent photoconductor layer. (H) After that, an arbitrary black color is formed according to the electrostatic latent image pattern. Toner is attached to form a light-shielding pattern. The method for manufacturing a color filter is characterized by going through the above steps (e) to (h). And preferably,
A thirteenth aspect of the invention is the method of manufacturing a color filter according to the twelfth aspect, wherein a material exhibiting conductivity is used as the material of the colored pixel. Preferably, as described in claim 14, the colored pixel uses a photosensitive resin in which a pigment for the color of the pixel is dispersed, and the color according to claim 12 or 13. It is a manufacturing method of a filter.

More preferably, when forming a light-shielding pattern or a colored pixel on the transparent support, a transparent conductor layer is previously provided on the transparent support as described in claim 15. 15. A transparent support on which a transparent conductor layer is provided in advance is prepared, and then the light-shielding pattern or colored pixel is formed on the transparent conductor layer, according to claim 9. It is a manufacturing method of a color filter.

Now, the cause of the occurrence of white spots in the case of the conventional technique using the electrophotographic system, the present inventors considered the reason as follows. First, the light-shielding pattern usually has an insulating property in addition to its original light-shielding property. Therefore, when the electrophotographic photoreceptor layer having the light-shielding pattern is charged and then exposed, the charge accumulated on the light-shielding pattern is lost due to the high insulating property of the light-shielding pattern material. Absent. After all, even if the pattern exposure is performed after the charging for forming the next color pattern, the charge of the light-shielding pattern still remains, and the charge of the toner for forming the color pattern and the charge of the light-shielding pattern remain. It is considered that the toner for the color pattern is repelled in the vicinity of the light-shielding pattern due to the electric repulsive force between the two, causing white spots. According to the result of this consideration, at least the phenomenon can be explained well,
And above all, according to the invention based on this consideration,
It has been confirmed that no "blank spots" occur.

The present invention will be described in more detail below with reference to the drawings. First, the substrate of the color filter used in the present invention will be described. First, the substrate used in the present invention is
It has a structure in which the transparent conductor layer 2 is provided on the transparent support 1. As the transparent support 1, a substrate having transparency and mechanical strength as the support (for example, a substrate made of glass or plastic) is used. In addition, the transparent conductor layer 2
First, it is necessary to have transparency. During charging, exposure and development, the transparent conductor layer 2 may act as a channel for charges flowing in and out of the transparent photoconductor layer 4 which will be formed later.
Alternatively, there is SnO ₂ (tin oxide) or the like, which is formed on the transparent support 1 by a known thin film forming technique such as a sputtering method or a thermal decomposition forming method (see FIG. 1).

Next, a color filter using the electrophotographic method in the manufacturing process according to the present invention and a manufacturing method thereof will be described. First, a black matrix is formed on the above substrate. There is a method for forming the black matrix by forming a metal light-shielding film of Cr or the like, forming a resist pattern according to a conventional photolithography method, and then performing etching. Other than this, a dyeing method, a printing method, a pigment dispersion method, or the like can be used as the method for forming the black matrix, but the work is relatively simple and a highly accurate pattern can be formed. Upon examination, it can be said that the pigment dispersion method is particularly preferable.

The photosensitive resin 3 in which the black pigment is dispersed is formed on the transparent conductor layer 2 by a known coating method such as spin coating. After that, baking treatment is performed, PVA (polyvinyl alcohol) or the like is similarly coated as an oxygen barrier film, and baking treatment is performed again. Next, an ultraviolet lamp 9 is used to expose through a mask 8 having a predetermined black matrix pattern (see FIG. 2), and after development, baking processing is performed to complete the formation of the black matrix 3 ′ (FIG. 2). Three
reference). The black pigments that can be used here include carbon black, titanium black, aniline black,
Alternatively, iron black or the like can be given. However, since the black matrix exists between the transparent conductor layer and the transparent photoconductor layer, if the insulating property is high, the sensitivity of the transparent photoconductor layer is lowered, which is not preferable. Therefore, carbon black having conductivity is particularly preferable.

Then, the case where the colored pixels are formed on the support (directly or indirectly through the transparent conductive layer), particularly when the colored pixels are formed of a conductive material,
As the material, a coloring material itself or a material having conductivity as the other material (that does not impair the color of the pixel as much as possible) is used. As the colorant having a conductive material,
For example, among pigments, those which have conductivity and can be applied to the color of a pixel may be used, and these are dispersed in a photosensitive resin before use. Examples of the material other than the coloring material include, for example, a fine powder of a transparent conductor, which is dispersed in a photosensitive resin together with the coloring material.

After the above steps, PVK (polyvinylcarbazole) or the like as a material having photoconductivity and transparency is formed as the transparent photoconductor layer 4 by a known coating method such as a spin coating method, and a baking treatment is performed. (See FIG. 4).

Then, the transparent photoconductor layer 4 is charged to a surface potential of several hundreds V by using the charger 10 (see FIG. 5).
Next, after the charging process is completed, exposure is performed by the ultraviolet lamp 9 through the mask 11 having a predetermined pixel pattern,
An electrostatic latent image pattern for the first color pixel is formed (see FIG. 6).
reference). After forming the electrostatic latent image pattern,
The first color pixel 5 is developed by immersing it in the first color toner dispersion liquid, which is the developing liquid for the color pixel, for several seconds. After the development is completed, a baking process is performed to fix the adhered toner, and the formation of the first color pixels 5 is completed (see FIG. 7). Hereinafter, the steps from the charging of the transparent photoconductor layer 4 are similarly repeated to sequentially form the second color pixels 6 and the third color pixels 7 to complete the color filter (see FIG. 8).

[0027]

In the color filter according to the present invention, the light-shielding pattern and the colored pixels are always provided on the lower side and the other side on the upper side with the transparent photoconductor layer interposed therebetween. And
When a colored pixel (or a light-shielding pattern) is formed on the transparent photoconductor layer with a toner by electrophotography, the transparent photoconductor layer exhibits sufficient electrophotographic characteristics.
In particular, if the light-shielding pattern (or the colored pixel) provided below the transparent photoconductor layer is conductive, it is difficult to prevent the flow of charges that flow into and out of the transparent photoconductor layer. It will exhibit better electrophotographic properties. The "conductivity" of the light-shielding pattern (or colored pixel) provided below the transparent photoconductor layer (as is the case with the above-mentioned transparent conductor layer) means that the power cord of an electric appliance is never used. It does not mean that it has conductivity as high as that of a typical copper wire. The "conductivity" referred to in the present invention does not need to have a conductivity as high as that of the above-mentioned copper wire, and is at least 10 ¹⁰ Ω ·
A member having an electric resistance of about cm or less can sufficiently serve as a channel through which electric charges flow.

Therefore, taking as an example the case where the light-shielding pattern is provided below the transparent photoconductor layer, after the electrophotographic photoreceptor is charged in the step of forming the colored pixels, the exposed area is also exposed on the black matrix. If the exposure is performed through a mask having a color pattern shape so as to overlap with each other, the charging potential is also attenuated on the transparent photoconductor layer on the black matrix region. Therefore, during development, the color toner is not repelled by the charge of the black matrix even on the black matrix area, and the color toner can be attached corresponding to the electrostatic latent image pattern and also on the black matrix area. Colored pixels can be overlapped with each other, and as a result, the above-described gap does not occur, and a color filter without white spots can be obtained.

[0029]

Example A black resist (made by Fuji Hunt, trade name: CK-2000) was used as a photosensitive resin in which a black pigment was dispersed.
After applying to a soda glass substrate with a TO transparent conductive film by spin coating, baking treatment was performed at 70 ° C. for 20 minutes using an oven, and then PVA (polyvinyl alcohol) was applied as an oxygen barrier film by spin coating,
A baking process was performed at 70 ° C. for 20 minutes using an oven. Next, exposure (20 mJ / cm ² ) is performed through a mask having a predetermined black matrix pattern,
After development, baking was performed at 230 ° C. for 1 hour to form a black matrix pattern.

Subsequently, a cyclohexanone solution of polyvinylcarbazole (Anan, trade name: Tubicol 210) was applied by spin coating, and then at 130 ° C. for 1 hour.
Further, baking treatment is performed at 200 ° C. for 1 hour to obtain a film thickness of 2 μm.
m transparent photoconductor layer was formed.

Next, the electrophotographic photosensitive member is charged to about +100 tens V using a corona charger, and exposed (7 mJ / cm ² ) through a mask having a predetermined pixel pattern,
An electrostatic latent image pattern was formed.

While passing through the above steps, a positively charged blue toner developer prepared by dispersing a blue colorant (manufactured by Toyo Ink Mfg. Co., Ltd .: trade name: Rionol Blue E) in white latex and adding an isoparaffin solvent. Is adjusted. Then, the substrate on which the electrostatic latent image pattern was formed was immersed in the liquid and developed. Here, the first
As the color, blue pixels were formed. After that, 13
Apply a baking process at 0 ° C for 30 minutes to fix the pixels,
The formation of blue pixels is completed.

After that, the steps from charging are performed in the same manner as in the case of blue, except that the green toner and the red toner are used in the green pixel forming step and the red pixel forming step, respectively. Repeatedly, pixels of each color of green and red were formed to obtain an electrophotographic color filter. Here, as the colorant for the red toner and the green toner, chromophthal red A2B (trade name, B
ASF) and Lyonol Green 6YK (trade name, manufactured by Toyo Ink Mfg. Co.) were used respectively. The toner was adjusted in the same manner as the blue toner except that the colorants were different.

In the color filter obtained as described above,
White spots did not occur at all, desired spectral transmittance characteristics were obtained, and further high contrast could be obtained. Further, the obtained color filter had a small film thickness (about 3.0 to 3.4 μm), and a desired peak transmittance could be sufficiently obtained.

Comparative Example 1 An electrophotographic photosensitive substrate having a transparent conductive material layer formed on a transparent support and a transparent photoconductive material layer formed thereon is charged and exposed to black toner. It was used for development to form a light-shielding pattern. Hereinafter, except that the toner is changed according to the pixel forming process of each color (blue toner, red toner, and green toner), the same procedure as the light shielding pattern forming process is performed.
The steps of charging, exposing and developing for each color were repeated in this order to form blue, red and green pixels. What was produced in the same manner as that described in the example was used except that a black organic pigment (manufactured by Mitsubishi Materials, trade name: Titanium Black-13R) was used for the black toner.

When the appearance of the color filter thus manufactured was observed with an optical microscope, the light-shielding pattern and the edge portions of each colored pixel (red, green, blue) did not overlap each other, and the light-shielding pattern was formed around the colored pixel. A gap (having a width of about 3 to 5 μm) was formed, and light leaked from this portion. And the contrast of this color filter was still low.

Comparative Example 2 An electrophotographic photosensitive substrate having a transparent conductor layer formed on a transparent support and a transparent photoconductor layer formed thereon is charged and exposed as described above. After that, development was performed using black toner to form a light shielding pattern. After that, the transparent photoconductor layer is
Same as the step of forming the light-shielding pattern with the black toner, except that the toner for each color (blue toner, red toner, and green toner) is used to form pixels of each color with a film thickness of m. Using the procedure,
By repeating the exposure and development process, pixels of each color of blue, red and green were formed.

The color filter thus manufactured was inspected and measured. First, when this color filter was observed with an optical microscope, no white spots were observed. However, regarding the film thickness of this, it was found from the measurement results that the film thickness from the transparent support to the pixel was as thick as about 5 μm. Further, it was found from the measurement result that the peak transmittances of the respective colors were also lowered.

[0039]

[Table 1]

[0040]

According to the present invention, it is possible to manufacture a color filter having no white spots between a light-shielding pattern and a colored pixel even though it is manufactured by electrophotography. In addition, light leakage may cause spectral characteristics and contrast to fluctuate (decrease in performance) from the required predetermined performance, or, when a two-layer electrophotographic photosensitive member is used, It has become possible to easily and effectively prevent the problem that the layer becomes thick and the peak transmittance is lowered.

As a result, while maintaining the characteristics of the electrophotographic color filter manufacturing method that can be manufactured more simply and in a short time and is also suitable for large screens, the light-shielding pattern and the coloring can be maintained. A color filter capable of easily and effectively preventing a problem caused by a gap between a pixel and a manufacturing method thereof can be provided.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a schematic process using an example of a method for manufacturing a color filter according to the present invention, using a cross-sectional view.

FIG. 2 is an explanatory view showing a schematic process using a cross-sectional view of one embodiment of the method for manufacturing a color filter of the present invention.

FIG. 3 is an explanatory view showing a schematic process using a cross-sectional view of one embodiment of the method for manufacturing a color filter of the present invention.

FIG. 4 is an explanatory diagram showing a schematic process using a cross-sectional view of one embodiment of the method for manufacturing a color filter of the present invention.

FIG. 5 is an explanatory view showing a schematic process using a cross-sectional view of one embodiment of the method for manufacturing a color filter of the present invention.

FIG. 6 is an explanatory view showing a schematic process using a cross-sectional view of one embodiment of the method for manufacturing a color filter of the present invention.

FIG. 7 is an explanatory view showing a schematic process using a cross-sectional view of one embodiment of the method for manufacturing a color filter of the present invention.

FIG. 8 is an explanatory view showing a schematic process with reference to a sectional view of one embodiment of the method for manufacturing a color filter of the present invention.

FIG. 9 is an explanatory view showing an example of a conventional color filter using an electrophotographic method, using a sectional view.

FIG. 10 is an explanatory diagram showing, using a cross-sectional view, a state after a light-shielding pattern is formed in another example related to the conventional method of manufacturing a color filter using an electrophotographic method.

[Explanation of symbols]

 1 ... Transparent support 2 ... Transparent conductor layer 3 ... Photosensitive resin (in which black pigment is dispersed) 3 '... Black matrix 4 ... Transparent photoconductor layer 5 ... ( (First color) pixel 6 ... (second color) pixel 7 ... (third color) pixel 8 ... Black matrix pattern mask 9 ... UV lamp 10 ... Charger 11 ... Pixel pattern mask

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Eisaburo 1-5-1 Taito, Taito-ku, Tokyo Within Toppan Printing Co., Ltd. (72) Kenichi Fujita 2-3-13 Kyobashi, Chuo-ku, Tokyo Toyo Inki Manufacturing Co., Ltd.

Claims (15)

[Claims] 1. A color filter comprising a transparent support, a light-shielding pattern, a transparent photoconductor layer, and colored pixels provided at least in this order. 2. The color filter according to claim 1, wherein the light shielding pattern is formed of a material exhibiting conductivity. 3. The light-shielding pattern is formed of a photosensitive resin in which a black pigment is dispersed.
The color filter according to any one of 1. 4. The color filter according to claim 1, wherein a transparent conductor layer is provided on the transparent support, and a light shielding pattern is provided on the transparent conductor layer. 5. A color filter characterized in that a colored pixel, a transparent photoconductor layer, and a light-shielding pattern are provided at least in this order on a transparent support. 6. The color filter according to claim 5, wherein the colored pixel is formed of a material exhibiting conductivity. 7. The color filter according to claim 5, wherein the colored pixel is formed of a photosensitive resin in which a pigment for the color is dispersed. 8. A transparent conductor layer is provided on a transparent support, and a colored pixel is provided on the transparent conductor layer, according to claim 5. Color filter. 9. A method for producing a color filter, comprising: (a) forming a light-shielding pattern on a transparent support; (b) forming a transparent photoconductor layer on the surface; and (c) forming a transparent photoconductor layer on the transparent photoconductor layer. An electrostatic latent image pattern is formed by selectively charging and then exposing to (d) After that, toner of a color corresponding to the color of the pixel is attached according to the electrostatic latent image pattern. Developing a colored pixel A method for manufacturing a color filter, which comprises the steps (a) to (d) above. 10. The method of manufacturing a color filter according to claim 9, wherein a material having conductivity is used as a material of the light shielding pattern. 11. The method of manufacturing a color filter according to claim 9, wherein a photosensitive resin in which a black pigment is dispersed is used as a material of the light shielding pattern. 12. A method of manufacturing a color filter, comprising: (e) forming a colored pixel on a transparent support; (f) forming a transparent photoconductor layer on the surface thereof; and (g) forming a transparent photoconductor layer on the transparent photoconductor layer. An electrostatic latent image pattern is formed by selectively charging and then exposing the light (H), and then black toner is attached according to the electrostatic latent image pattern to develop the light shielding pattern. A method of manufacturing a color filter, comprising the steps of (e) to (h). 13. The method of manufacturing a color filter according to claim 12, wherein a material exhibiting conductivity is used as a material of the colored pixel. 14. The method of manufacturing a color filter according to claim 12, wherein the colored pixel uses a photosensitive resin in which a pigment for the color of the pixel is dispersed. 15. When forming a light-shielding pattern or colored pixels on a transparent support, a transparent conductor layer is provided on the transparent support in advance, or a transparent support having a transparent conductor layer is provided on the transparent support. 15. The method of manufacturing a color filter according to claim 9, wherein the light-shielding pattern or the colored pixel is formed on the transparent conductor layer after preparation.