JPH0689276B2 - High dielectric polymer electrodeposition composition for color filter - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a polymer electrodeposition composition mainly used for displays, capable of forming a transparent colored coating film, and having a high dielectric property. The present invention relates to a high dielectric polymer electrodeposition composition for a color filter, which is useful as a transparent coloring material for a color filter used for various multicolored displays such as displays and optical equipment.

2. Description of the Related Art Generally, as a material for a color filter and a coloring method, a method of dyeing a gelatin film with a dye or a method of printing has been proposed.

Problems to be Solved by the Invention However, these materials or methods have many problems. That is, the method for coloring a gelatin film requires that the durability and use conditions are limited because gelatin as a material is chemically weak, and that the photolithography method, which is a method for forming a film, requires extremely complicated steps. There is. Further, when making a multicolor filter, only the necessary portion of the gelatin layer is colored, and therefore the non-colorable portion must be subjected to a dye-proof treatment, which complicates the process. An example of steps of a method by photolithography using such gelatin as a coloring layer will be described below.

First, a patterned transparent electrode containing tin oxide, indium oxide or the like as a main component is formed on a glass substrate. Next, apply a thin gelatin layer and expose by the photolithographic method.
Development and washing are carried out, leaving the gelatin layer in conformity with the transparent electrode thus patterned. Next, a dye mask is applied, and then exposure, development and washing are carried out by the photolithographic method to remove the dye film only on the pattern portion that needs coloring. Next, coloring is performed using a dyeing bath. Next, the remaining dye-proof film is peeled off. In the above steps, one color is colored on the required pattern. When coloring the second color, the same process is repeated from the coating of the dye-proof coating. When making a three-color filter of red, green, and blue, this coloring process is repeated three times, and then, after washing with water well and finally drying.
As described above, the coloring by the photolithography method using gelatin has problems in terms of durability of the material and complexity of the process, and a more practical material and method are desired. Also, the printing method is simpler than the photolithographic method described above, but there is a limit to the fineness of patterning that can be performed. It was extremely difficult to make, and there was a practical limit.

Therefore, the present inventors proposed in Japanese Patent Application Laid-Open No. 59-114572, to apply a new method called the polymer electrodeposition method to the production of color filters.

According to this method, in order to produce a color filter,
By electrodepositing a polymer resin, it is possible in principle to manufacture a highly accurate and high-definition multicolor pattern with no color shift in a much simpler process than the photolithographic method.

However, the color filter obtained by any of the above methods is an insulating layer. Therefore, in an actual display device using this, the insulating property is sandwiched between the display electrode and the display material (liquid crystal), and the color filter is formed. The driving voltage loss was caused by the voltage drop due to, which was an obstacle to low voltage driving.

Means for Solving the Problems In a liquid crystal display, the coating is thin in order to prevent a reduction in the practical voltage applied to the liquid crystal due to the coating of the color filter existing between the electrode and the liquid crystal. A method of lowering the electrical resistance by lowering the volume resistance of the coating film and increasing the relative dielectric constant of the coating film can be considered.

As a result of intensive studies, the present inventors have found that a high dielectric constant fine particle can be dispersed in a coating film to form a coating film having a large relative dielectric constant, and the present invention has been completed based on this finding. .

The present invention provides a high dielectric polymer electrodeposition composition containing an electrodeposition polymer resin, a dye and high dielectric fine particles, wherein a coating film formed from the above electrodeposition composition has a relative dielectric constant of at least 6
The above is a high dielectric polymer electrodeposition composition for a color filter.

First, a method for producing a multicolor color filter using the polymer electrodeposition composition will be described. In this method, first, a transparent electrode having conductivity such as tin oxide, indium oxide or antimony oxide is formed in a pattern on a glass substrate (hereinafter referred to as a transparent electrode pattern). Secondly, the polymer electrodeposition composition is diluted with pure water to a solid content of about 4 to 25% by weight to prepare a polymer electrodeposition solution, in which a counter electrode such as platinum or stainless steel and the above The glass substrate on which the transparent electrode pattern is formed is immersed. Next, a direct current of about 5 to 300 V is applied between the transparent electrode pattern to be colored and the counter electrode. At this time, when the polymer electrodeposition composition is anionic as described later, the transparent electrode pattern is used as an anode, and when it is cationic, this is used as an anode and a voltage is applied. By applying this voltage, the polymer electrodeposition composition migrates only on the pattern to which the voltage is applied, deposits as a coating film, and colors the transparent electrode pattern. In order to obtain the required film thickness, the electrodeposition conditions such as voltage, electrodeposition time and liquid temperature are adjusted. The usual dry film thickness is 5 μm or less. The electrodeposition time is usually 5 to 180 seconds, and the liquid temperature is 10 to 30 ° C. When the electrodeposition time for obtaining the required film thickness has passed, the energization is stopped, the glass substrate is taken out of the bath, the excess bath liquid is thoroughly washed with pure water, and then heated to cure the coating film. In this way 1
A transparent electrode pattern having a colored dielectric film is created. Taking the case of making a multicolor filter of three colors of red, green and blue as the third example, the second coloring step is repeated twice on the transparent electrode pattern which requires coloring for other colors. By the above method, a multicolor filter including colored layers having three colors of dielectric properties is produced by the polymer electrodeposition method. This method does not require a photolithography step when coloring, and the step is simple because it does not require a stain-proofing treatment, and the transparent electrode pattern and the colored layer are exactly the same, It is a method that sufficiently solves the drawbacks of the photolithography method and the printing method, such as the coloring of the pattern and the ability to work with a chemically stable and durable material.

Next, the high dielectric polymer resin electrodeposition composition which is provided by the present invention and which can form the transparent colored layer used in the above-described polymer electrodeposition method will be described. This structure has (i) anionic or cationic electrodeposition polymer resin as a film-forming component of the coating film, (ii) high-dielectric fine particles for imparting high dielectric property to the coating film, and (iii) coating film It consists of pigments such as pigments and dyes that are transparent and give coloring, and when used as other bath components, (iv) adjust the electrodeposition characteristics and bath solution stability,
Organic solvents used to facilitate manufacturing, (v)
It contains a neutralizing agent for making the polymer resin soluble in water, and (vi) various auxiliary agents for improving the coating film surface, electrodeposition characteristics, solution stability and the like.

The details of the configuration of the present invention will be described below.

The electrodeposition polymer resin used as the film-forming component of the coating film is an anionic or cationic polymer resin, and the anionic polymer resin includes acrylic resin, polyester resin, maleated oil resin, polybutadiene resin, epoxy resin. There are resins and the like, which can be used alone or as a mixture, and may be used in combination with a crosslinkable resin such as a melamine resin, a phenol resin or a urethane resin. Examples of the cationic polymer resin include acrylic resin, epoxy resin, urethane resin, polybutadiene resin, polyamide resin, etc., which can be used alone or as a mixture, and can be used in combination with a crosslinkable resin such as urethane resin or polyester resin. May be. As the anionic polymer resin, an acrylic resin, a polyester resin alone or in a mixture or in combination with a melamine resin, and as the cationic polymer resin, an acrylic resin, an epoxy resin alone or in a mixture or together with a urethane resin is transparent. It is a preferable resin in terms of properties and color characteristics. These resins are
The anionic polymer resin is neutralized with an alkaline substance and the cationic polymer resin is neutralized with an acidic substance so that it can be used in the electrodeposition method. That is, the anionic polymer resin is neutralized with amines such as triethylamine, diethylamine, dimethylethanolamine and diisopropanolamine, ammonia, inorganic alkali such as caustic potash, and the cationic polymer resin is acetic acid,
It is neutralized with an acid such as formic acid, propionic acid or lactic acid, solubilized in water, and used as a water dispersion type or a dissolution type diluted with water.

The amount of the above-mentioned neutralizing agent used is indicated by the MEQ value, and the measuring method is described in the examples. This characteristic value is an important characteristic value because it greatly affects the stability of the electrodeposition bath, the current efficiency, the finished state of the coating film and the state of the surface to be electrodeposited. In the cationic electrodeposition bath, 15 to 50 is applied, preferably 20 to 40. In the anionic electrodeposition bath, 30-
In the range where 130 is applied, it is preferably 40 to 100. Below the above lower limit values may impair the stability of the electrodeposition bath,
If the above upper limit values are exceeded, the current efficiency may decrease, the finish of the coating film may deteriorate, and the surface to be coated may elute or break.

The high dielectric particles give high dielectric coating film, the relative dielectric constant good higher than the dielectric constant of the electrodepositable polymer resin, for example _{TiO 2, BaTiO 3, MgTiO 3} , CaTiSiO 5, SrTi
_{O 3, BaZrO 3 -PbZrO 3,} BaZrO 3 -PbSnO 3, BaTiO 3 -Bi 2 (Sn
_{O 3) 3, BaTiO 3 -NiSnO} 3, BaTiO 3 -SrSb 2 O 6, BaTiO 3 -BaS
b ₂ O ₆ , BaTiO ₃ -PbSb ₂ O ₆ , (LaNa) FeO ₃ -Bi ₂ O ₃ , MgO ・ Si
O ₂ , 2MgO ・ SiO ₂ , 2MgO ・ 2Al ₂ O ₃・ 5SiO ₂ , ZrO ₂・ SiO ₂ , BeO, Al
Fine particles containing at least one of ₂ O ₃ and BN as a main component can be used, and a dielectric constant of 50 or more can be used. In order not to impair the transparency of the coating film, these fine particles are dispersed so that the average particle diameter is 0.8 μ or less, which is the upper limit of the wavelength of visible light. When the average particle size is 0.2 to 0.3 μ or less, the transparency is practically preferable.

Although the content of the high dielectric fine particles in the composition of the present invention varies depending on the relative dielectric constant, specific gravity, etc. of the fine particles, the relative dielectric constant of 6 or more required in the coating film made from the composition of the present invention will be described later. In order to obtain
0.5-40% by weight, preferably 5-25% by weight is required. If it is less than 0.5% by weight, the required dielectric constant of the coating film cannot be obtained, and if it exceeds 40% by weight, a smooth and uniform coating film cannot be obtained, which is not preferable.

The dielectric property of the coating film is useful for providing a display effect with good characteristics without causing a decrease in the effective voltage of the display body, especially when used in a display body driven by a low voltage such as a liquid crystal display body. As long as the relative permittivity of the coating film is larger than the relative permittivity of the polymer resin, it is possible to prevent the effective voltage of the display body from decreasing due to the coating film having the same film thickness.
Or more, preferably 10 or more.

As a pigment that is transparent and imparts color to the coating film, a pigment or a dye may be used, for the pigment the transparency of the coating film obtained, for the dye, bath stability, electrodeposition characteristics,
It is necessary to select one that does not cause a problem with respect to the durability of the coating film. From this point, as the pigment, phthalocyanine-based or slene-based organic pigments and oxide inorganic pigments such as iron oxide are suitable, and as the dyes, oil-soluble or dispersible dyes are suitable. It is preferable that the high dielectric fine particles and pigments used such as pigments are purified and used to remove impurities in order to obtain a good coating film.

In addition, it is advisable to add organic solvents to the composition of the present invention for the purposes of i) obtaining a smooth coating film, ii) improving bath solution stability, and iii) facilitating dispersion. As the type of such organic solvent, ethyl, butyl, cellosolves such as methyl cellosolve, alcohols such as isopropanol and butanol, glycols, hydrophilic solvents such as carbitols can be mainly used, but in some cases, xylol, toluene, mineral terpene. Hydrophobic solvents such as can also be used.

Examples of the auxiliary agent that can be used include a dispersant that improves the dispersibility of the pigment, a leveling agent that improves the smoothness of the coating film, and an antifoaming agent that stops the foaming of the bath.

The composition of the present invention is dispersed using a commonly used disperser such as a sand mill, a pearl mill, a roll mill and an attritor, but it must be sufficiently dispersed in order to obtain transparency and smoothness of the coating film. Highly dielectric fine particles and dyes are diluted with a solvent and mixed with a neutralized anionic or cationic polymer resin. Next, auxiliary agents are added, and finally pure water has a predetermined concentration, usually about 4 to 25% by weight of solid content.
After diluting it, use it for the electrodeposition method. The electrodeposition method is performed by the method described above.

Action The coating film obtained from the composition according to the present invention has a relative permittivity of 6 or more, and since it has durability and high dielectric property, it is a color filter used for a liquid crystal display or the like characterized by low voltage driving. A coating film extremely useful as

EXAMPLES The contents of the invention will be specifically described below with reference to examples. In the examples, the parts are parts by weight unless otherwise specified.

Example 1 The following anionic electrodeposition bath was prepared.

Nonvolatile content 75%, acid value 50 (acid value is the number of mg of KOH required to neutralize 1 g of resin solids), viscosity 60 poise (25 ° C) out of 65 parts polyester resin 45 parts and butyl cellosolve 45 parts And titanium oxide and phthalocyanine blue were dispersed by a laboratory disperser sand grind mill (manufactured by Asada Iron Works Co., Ltd.) until the particle size became 0.3 μm. A Coulter Counter N4 (manufactured by Coulter Counter) was used to measure the particle size.

The remaining polyester resin, melamine resin and n-butanol were added to the dispersed composition and mixed well, then neutralized with triethylamine and diluted with ion-exchanged water to obtain a high dielectric polymer resin electrodeposition composition. I made an electrodeposition bath. The MEQ of the obtained bath liquid was 49.5.

The acid value and MEQ were measured by the following methods.

Method for measuring acid value Dissolve a fixed amount of resin in a fixed amount of alcohol or ether, and titrate the dissolved product with 1/2 normal potassium hydroxide using phenolphthalein as an indicator.

Convert the mg of potassium hydroxide required for titration to 1 g of resin solids, and use that value as the acid value.

Measurement of MEQ (milliequivalent of basic component contained in 100 g of solid content) 20 ml of a sample of the bath solution is precisely weighed, 100 ml of ethylene glycol monobutyl ether is added, and the mixture is placed under stirring, and the pH is dropped while adding a 1/10 N hydrochloric acid solution. Measure the pH value with a meter and draw a titration curve. From the two inflection points of the titration curve, find the midpoint and determine the titer of 1 / 10N hydrochloric acid required up to the midpoint. Then, the base concentration is calculated by the MEQ calculation formula.

Here, V: titration amount (ml) of 1 / 10N hydrochloric acid required up to the midpoint.

 f: The titer of 1 / 10N hydrochloric acid.

 c: Heating residue (%) of the sample.

This bath solution had MEQ 49.5 and contained 25% by weight of titanium oxide as high dielectric particles in the solid content.

The electrodeposition bath prepared as above was stirred at 20 ° C., glass was used as the substrate, and the transparent substrate on which the indium oxide conductive film was formed was used as the anode by the spray coating method, and the platinum plate to be the counter electrode was formed. A voltage of 20 V was applied as a cathode between both electrodes for 30 seconds.

Next, the polyester resin and the melamine resin in the colored layer formed by electrodeposition were baked to cause a condensation reaction to be cured. The baking was performed in air at 175 ° C for 30 minutes.

The obtained cured films having respective colors were uniform colored layers having a thickness of 1.5 μ and excellent transparency, and the relative permittivity thereof was 12.5.

Example 2 The following anion electrodeposition bath solution was formed.

A high dielectric polymer resin was prepared in the same manner as in Example 1 using each component except ion-exchanged water, and this was diluted with ion-exchanged water. In this example, the same procedure as in Example 1 was carried out except that 22.4% by weight of barium titanate was used in the solid content instead of titanium oxide in the bath solution MEQ55.0.

Using this solution, electrodeposition and curing were carried out in the same manner as in Example 1 to obtain a uniform colored layer having excellent transparency as in Example 1, and its relative dielectric constant was 18.

Example 3 The following three-color cationic electrodeposition liquid was prepared.

In a mixed solution of 40 parts of acrylic resin and ethyl cellosolve, a mixture of barium titanate / calcium zirconate / strontium titanate and a dye are added with stirring and mixed, and then in a laboratory three-roll mill (manufactured by Kodaira Seisakusho) , Were dispersed until the particle size became 0.3 μm or more. A Coulter Counter N4 was used to measure the particle size.

After adding the remaining acrylic resin and isopropyl encore to the above dispersion mixture and stirring for 15 minutes, the mixture was neutralized with an aqueous acetic acid solution with stirring, diluted with ion-exchanged water, and then an electrodeposition bath consisting of a high dielectric polymer resin composition. Made.

The acrylic resin used has a non-volatile content of 75% by weight, a base number of 1.0, and a viscosity of 60 poise (25 ° C).

The obtained bath liquid had a MEQ of 40 and contained 20% by weight of a mixture of barium titanate / calcium zirconate / strontium titanate in the solid content as high dielectric fine particles.

The method for measuring the base number is shown below.

Measurement of base number Unneutralized basic resin containing no acidic compound is collected in an Erlenmeyer flask so that the solid content is about 1 gr. Add dioxane 60c.c. and dissolve well (sometimes warm). Add 2 to 3 drops of methyl red and titrate with 1 / 10N HCl. The "cc number" required until the color change point is 1 g of basic resin.
It is converted per r and the value is used as the base number of the basic resin.

Measurement of MEQ value (milliequivalent of acidic component contained in 100 g of solid content) 20 ml of bath solution sample is precisely weighed and 100 ml of tetrahydrofuran
Is added under stirring, the pH value is measured with a pH meter while a 1/10 N-alcoholic KOH solution is added dropwise, and a titration curve is drawn. The midpoint of the two curve lines of the titration curve is determined, and the titer of the 1/10 N-alcoholic KOH solution required up to the midpoint is determined. Then, the acid concentration is calculated by the MEQ calculation formula.

Where V: titer of 1/10 N-alcoholic KOH solution required to the midpoint (ml).

 f: 1/10 N-alcoholic KOH solution titer.

 c: Heating residue (%) of the sample.

The electrodeposition bath prepared as described above was stirred at 20 ° C., glass was used as the substrate, the transparent substrate on which the tin oxide conductive film was formed by spray coating was used as the cathode, and the platinum plate serving as the counter electrode was used as the anode. As a result, a voltage of 20 V was applied between both electrodes for 30 seconds.

Next, the acrylic resin in the colored layer formed by electrodeposition is baked to cause a crosslinking reaction to cure. Baking is carried out in air at 175 ° C. for 30 minutes, but if it is desired to increase the fastness of the colored layer, the baking time is extended or the pressure is reduced. The thickness of the colored layer after curing is 1.5 μm
It was.

All of the cured color layers were uniform color layers with excellent transparency, and their relative dielectric constant was 18.9.

Example 4 Using the three-color bath liquid prepared in Example 1, a multicolor display device as shown in FIG. 1 was prepared. The process is described below.

Patterning step 1 is a display substrate made of a transparent material, and an indium oxide transparent conductive film is formed on the display substrate by a spray coating method. The transparent conductive film is patterned into a stripe shape by etching to obtain the display electrode 2.

Electrodeposition Step The display substrate 1 on which the display electrodes 2 are formed is immersed in the anion electrodeposition bath prepared in Example 1. An electrode desired to be colored in the same color is selected from among the display electrodes 2 patterned in a stripe shape, and a voltage of 20 V is applied for 3 minutes using the selected electrode as an anode. After energization, the display substrate 1 is pulled up and washed thoroughly with water to wash away the solution adhering to the portion to which no voltage is applied. After washing with water and drying, a colored layer having good transparency is formed on the electrode to which a voltage has been applied.

Curing Step Next, the polyester resin and the melamine resin in the colored layer formed by electrodeposition are cured by performing a crosslinking reaction by baking. The color layer is completely cured by baking at 175 ° C. for 30 minutes in air. The cured colored layer will no longer be electrodeposited when the next electrodeposition is performed again.
For the second and subsequent electrodepositions, the process of selecting the display electrode to be the same color with another color again and repeating electrodeposition and curing in the electrodeposition baths of different colors is repeated.

In this embodiment, a striped color filter 3 having a width of 200 μm in the order of red, blue, and green is used in a patterning process → a red electrode electrodeposition process → curing process → a blue electrode electrodeposition process → curing industry →
The green electrode was manufactured by the method of electrodeposition process → curing process, and it was very easy to perform.

The display substrate 1 on which the color filter 3 is formed is arranged so that the stripes of the display electrodes 2 and the counter electrodes 4 cross each other at right angles through the spacer 6 and the transparent counter substrate 5 on which the transparent counter electrodes 4 are formed in stripes. To form a cell. The cell was filled with TN-FEM liquid crystal as the display material 7 to prepare a multicolor liquid crystal display device. A voltage is applied between the display electrode 2 and the counter electrode 4 of this multicolor display device, and the cell is sandwiched between a polarizer and an analyzer whose transparent axes are parallel to each other, and the display substrate 1
Alternatively, when viewed from the direction of the counter substrate 5, the color of the transparent color filter 3 was displayed.

Moreover, due to the high dielectric property imparted to the color filter layer, the voltage-transmittance characteristic in the electro-optical characteristics of the multicolor display device manufactured in this example is almost equal to the voltage-transmittance characteristic of the liquid crystal material used. It was a thing.

Thus, by using the transparent high dielectric polymer electrodeposition composition according to the present example, a multicolor display device can be easily manufactured, its display quality is excellent, and further, low voltage drive display such as liquid crystal. It has been clarified that the drive voltage of the display does not decrease even when used on the body.

Comparative Example 1 The following anion electrodeposition bath solution was prepared.

The bath was prepared in the same manner as in Example 1. This bath solution has a MEQ of 65.8 and contains 0.4% by weight of high-dielectric fine particles in the solid content, but the colored layer obtained by electrodeposition has a relative dielectric constant of 4.1 and contains high-dielectric fine particles. The relative permittivity of the uncolored layer was almost equal to 4.0, and the effect of adding high dielectric fine particles was not recognized.

Comparative Example 2 The following anion electrodeposition bath solution was prepared.

The bath was prepared in the same manner as in Example 2 except that the amount of barium titanate was different.

This bath solution had a MEQ of 40.0 and contained 50% by weight of barium titanate in the solid content as highly dielectric fine particles.

Using this bath solution, electrodeposition was carried out in the same manner as in Example 2, but the resulting coating layer was poor in glossiness and the obtained colored layer had a dielectric constant of 77 but a non-uniform film thickness distribution and gloss. And the transparency was insufficient.

EFFECTS OF THE INVENTION The high dielectric polymer electrodeposition composition according to the present invention can form a colored layer having high dielectric property and good transparency by electrodeposition, and its use is various multicolor display bodies and display materials. It can be applied to color filters such as optical devices, and especially when used for low-voltage drive display such as liquid crystal, it realizes high display quality and reliability without lowering drive voltage.

[Brief description of drawings]

FIG. 1 shows an example of a multicolor display device using the conductive polymer resin composition of the present invention. 1 ... Display substrate 2 ... Display electrode 3 ... Color filter 4 ... Counter electrode 5 ... Counter substrate 6 ... Spacer 7 ... Liquid crystal

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Mitsuru Suginoya 6-31-1 Kameido, Koto-ku, Tokyo Seiko Electronics Co., Ltd. (72) Yumiko Terada 6-31-1 Kameido, Koto-ku, Tokyo No. Seiko Denshi Kogyo Co., Ltd. (72) Inventor Naoki Kato 6-31-1 Kameido, Koto-ku, Tokyo Seiko Denki Kogyo Co., Ltd. (72) Inventor Tameno Suzuki 3-chome Yamane, Zushi, Kanagawa No. 7 (72) Inventor Junichi Yasukawa 2-13-13, South East Coast, Chigasaki City, Kanagawa Prefecture (72) Inventor Toyokazu Nomura 5-1-1 Higashi Narashino City, Narashino City, Chiba Prefecture (72) Inventor Kazuo Toda Katsushika, Tokyo 6-6-14 Kanamachi (56) References Japanese Patent Publication Sho 59-34799 (JP, B2)

Claims (4)

[Claims] 1. A high dielectric polymer electrodeposition composition for a color filter, which comprises an electrodeposition polymer resin, a dye and high dielectric fine particles, wherein the high dielectric fine particles have a relative dielectric constant of 50 or more. A high dielectric polymer electrodeposition composition for a color filter, wherein the high dielectric fine particles have an average particle size of 0.8 micron or less and 0.5 to 40% by weight of the total solid content of the composition. 2. Highly dielectric fine particles are TiO ₂ , BaTiO ₃ , MgTiO ₃ ,
_{CaTiSiO 5, SrTiO 3, BaZrO 3} -PbZrO 3, BaZrO 3 -PbSnO 3,
_{BaTiO 3 -Bi 2 (SnO 3)} 3, BaTiO 3 -NiSnO 3, BaTiO 3 -SrSb 2 O
_{6, BaTiO 3 -BaSb 2 O 6} , BaTiO 3 -PbSb 2 O 6, (LaNa) FeO 3 -B
i ₂ O ₃ , MgO ・ SiO ₂ , 2MgO ・ SiO ₂ , 2MgO ・ 2Al ₂ O ₃・ 5SiO ₂ , ZrO ₂
The high dielectric polymer electrodeposition composition for a color filter according to claim 1, which is fine particles containing at least one of SiO ₂ , BeO, Al ₂ O ₃ and BN as a main component. 3. The high dielectric polymer electrodeposition composition for a color filter according to claim 1, wherein the electrodepositable polymer resin is an anionic polymer resin. 4. The high dielectric polymer electrodeposition composition for a color filter according to claim 1, wherein the electrodeposition polymer resin is a cationic polymer resin.