Coloring composite for color filter, color filter, and displaying device for color filter

A technology for coloring compositions and color filters, applied in the directions of color filters, applications, household appliances, etc., can solve the problems of not being able to obtain a uniform coating film, the coloring composition cannot be wetted and diffused, whitening, etc., to prevent color fading, The effect of good wetting diffusion performance and excellent flatness

Inactive Publication Date: 2009-04-01
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among these methods, for example, using a colored resist method or an inkjet method, the wettability of the coating liquid or the ejection liquid on the surface of the object to be coated is caused, that is, when the coating liquid drops on the surface of the object to be coated The degree of wetting and spreading during coating is the main factor affecting the effect of preventing defects such as uneven coating and whitening.
[0005] For example, when using, for example, a slit coater or the like to coat a coating liquid onto a desired substrate, or when a liquid coloring composition is ejected to a black matrix previously formed on a substrate by an inkjet method ( In the concave area surrounded by dark walls such as black matrix), when a colored pattern is formed, the coating liquid after coating or the sprayed coloring composition cannot wet and spread well on the surface of the substrate and cannot obtain uniformity. The problem of the coating film, or there is a problem that the droplet falling into the concave area separated by the black matrix cannot reach the corner and cause defects such as whitening

Method used

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  • Coloring composite for color filter, color filter, and displaying device for color filter
  • Coloring composite for color filter, color filter, and displaying device for color filter
  • Coloring composite for color filter, color filter, and displaying device for color filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0227] —Preparation of dark compositions for partition wall formation—

[0228] Measure the amount of K pigment dispersion 1 and propylene glycol monomethyl ether acetate described in the following Table 1, mix at a temperature of 24 ° C (± 2 ° C), stir at 150 rpm for 10 minutes, and then measure the following Table 1 Butanone, cyclohexanone, binder 1, phenothiazine, DPHA solution, 2,4-bis(trichloromethyl)-6-[4'-N,N-bis(ethoxy Carbonylmethyl)amino-3'-bromophenyl]-s-triazine, and surfactant 1, added sequentially at a temperature of 25°C (±2°C), and added in sequence at a temperature of 40°C (±2°C). Stir at 150 rpm for 30 minutes to obtain dark composition K1. The components described in Table 1 are shown in detail below.

[0229] * K pigment dispersion 1

[0230] ・Carbon black (Nipex 35 manufactured by Degussa Co., Ltd.) ・・・13.1%

[0231] ・Pigment dispersant (compound 1 below) ・・・0.65%

[0232]・Polymer (random copolymer of benzyl methacrylate / methacrylic acid [=72 / 28 (mola...

Embodiment 2～5 and Embodiment 7～8

[0330] (Examples 2-5 and Examples 7-8, Comparative Examples 1-5 and Comparative Examples 7-8)

[0331] In the preparation of the inkjet ink of Example 1, except that the composition of the ink was changed to the composition shown in the above Table 3, the rest were the same as in Example 1, and the inkjet inks G2 to G10, R1, R2, and B1 were prepared. , B2. In the process of forming colored pixels by inkjet method in Embodiment 1, except that any one of the above-mentioned inkjet inks G2 to G10, R1, R2, B1, and B2 is used instead of inkjet ink G1, the rest are the same as in Embodiment 1. Likewise, make color filters.

[0332] In addition, evaluation was performed in the same manner as in Example 1, and the evaluation results are shown in Table 4 below.

[0333] 【Table 4】

[0334] Moisture Diffusion on Glass Surfaces ejection Example 1 B B Example 2 B A Example 3 C A Example 4 B A Example 5 B A Comparative example 1 X B...

Embodiment 6

[0335] (Example 6, Comparative Example 6)

[0336] In the preparation of the inkjet ink of Example 1, inkjet inks G11 to G12 were prepared in the same manner as in Example 1 except that the ink composition was changed to the composition shown in Table 5 below. In the process of forming colored pixels by the inkjet method in Example 1, except that the above-mentioned inkjet ink G11 or G12 was used instead of the inkjet ink G1, the color filter was produced in the same manner as in Example 1.

[0337] In addition, evaluation was performed in the same manner as in Example 1, and the evaluation results are shown in Table 5 below.

[0338] 【table 5】

[0339]

[0340] In addition, the details of the components described in said Table 5 are as follows.

[0341] ・EPICOAT157S70 (manufactured by Japan Epoxy Resins Co., Ltd.)

[0342] · Adhesive epoxy resin

[0343] (Random copolymer of glycidyl methacrylate / cyclohexyl methacrylate [=6 / 4 (molar ratio)], weight average molecular we...

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PUM

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Abstract

The present invention provides a coloring composition of color filter, which comprises a colored material, one dissolvent or more than two mixed dissolvents selected from dipropylene glycol dialkyl ether represented by the structural formula (1), a tripropylene glycol dialkyl ether represented by the structural formula (2), and tetrapropylene glycol diakyl ether represented by the structural formula (3) (wherein R<1> and R<2> are alkyls with carbon number of 1-10.) Additionally the invention also provides a color filter prepared with the coloring composition and a display device with the color filter. The structural formulas (1), (2) and (3) are as follows: R<1>O-(CH(CH3)CH2O)2-R<2> (1); R<1>O-(CH(CH3)CH2O)3-R<2> (2); and R<1>O-(CH(CH3)CH2O)4-R<2> (3).

Description

technical field [0001] The present invention relates to a coloring composition for color filters, a color filter and a display device using the composition. Background technique [0002] A color filter for a display device has a structure in which, for example, red (R), green (G), blue (B) dot images are arranged in a matrix on a substrate such as glass, and dot images such as red (R), green (G), and blue (B) are arranged in a matrix. A dark wall such as a black matrix is ​​set between the image and the image to isolate the above-mentioned images from each other. [0003] As methods for producing color filters, conventionally known methods include: (1) dyeing method; (2) printing method; (3) method of forming a colored pattern by applying, exposing, and developing a colored photosensitive resin solution (colored resist method); (4) a method in which the image formed on the temporary support is sequentially transferred to the final or temporary substrate; (5) the colored pho...

Claims

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Application Information

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IPC IPC(8): G02B5/20C09D11/00C09D11/322C09D11/324C09D11/326C09D11/328C09D11/36C09D11/38G02F1/1335
CPCG03F7/004G03F7/0042G03F7/0045G03F7/0047
Inventor 藤本进二
Owner FUJIFILM CORP
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