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Photosensitive resin composition, black matrix, color filter and liquid crystal display element thereof

A technology of photosensitive resin and composition, applied in the field of photosensitive resin composition, can solve problems such as poor surface resistance stability, and achieve the effect of good surface resistance stability

Active Publication Date: 2013-09-11
CHI MEI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the black matrix has high resistance, its surface resistance will not be stable after being heated or plasma treated again.

Method used

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  • Photosensitive resin composition, black matrix, color filter and liquid crystal display element thereof
  • Photosensitive resin composition, black matrix, color filter and liquid crystal display element thereof
  • Photosensitive resin composition, black matrix, color filter and liquid crystal display element thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0136] The preparation method of the black pigment dispersion (F) can adopt the general mixing method, for example, the black pigment component (F-1) coated with the resin, the dispersant (F-2) and the second solvent (F- 3) Mix and add media such as glass beads, zirconia beads, etc., and then pass through paint conditioner, ball mill, sand grinder, Mixing is performed by twin-roll, three-roll, homogenizer system, jet mill or ultrasonic waves.

[0137] The average particle diameter of the resin-coated black pigment component (F-1) in the black pigment dispersion (F) was obtained with a known particle size analyzer of the laser doppler type, and the black The average particle diameter of the resin-coated black pigment component (F-1) in the pigment dispersion (F) ranges from 80 nm to 300 nm. Preferably, the average particle size of the resin-coated black pigment component (F-1) in the black pigment dispersion (F) ranges from 80 nm to 200 nm. When the average particle size of t...

Synthetic example 1

[0206] With 100 parts by weight of fluorene epoxy compound (model ESF-300, manufactured by Nippon Steel Chemical; epoxy equivalent 231), 30 parts by weight of acrylic acid, 0.3 parts by weight of benzyltriethylammonium chloride, 0.1 parts by weight of 2,6-di-tert-butyl-p-cresol, and 130 parts by weight of propylene glycol monomethyl ether acetate are added to a 500mL four-necked flask in a continuous addition mode, and the feed rate is controlled at 25 parts by weight / minute, The temperature in the reaction process is maintained at 100° C. to 110° C., and after 15 hours of reaction, a light yellow transparent mixed liquid with a solid content concentration of 50% by weight can be obtained.

[0207] Then, 100 parts by weight of the above-mentioned light yellow transparent mixed solution was dissolved in 25 parts by weight of ethylene glycol monoethyl ether acetate, and 6 parts by weight of tetrahydrophthalic anhydride and 13 parts by weight of tetrahydrophthalic anhydride were a...

Synthetic example 2

[0209] With 100 parts by weight of fluorene epoxy compound (model ESF-300, manufactured by Nippon Steel Chemical; epoxy equivalent 231), 30 parts by weight of acrylic acid, 0.3 parts by weight of benzyltriethylammonium chloride, 0.1 parts by weight of 2,6-di-tert-butyl-p-cresol, and 130 parts by weight of propylene glycol monomethyl ether acetate are added to a 500mL four-necked flask in a continuous addition mode, and the feed rate is controlled at 25 parts by weight / minute, The temperature in the reaction process is maintained at 100° C. to 110° C., and after 15 hours of reaction, a light yellow transparent mixed liquid with a solid content concentration of 50% by weight can be obtained.

[0210] Next, 100 parts by weight of the light yellow transparent mixed solution obtained above was dissolved in 25 parts by weight of ethylene glycol monoethyl ether acetate, and 13 parts by weight of benzophenone tetracarboxylic dianhydride was added, and the mixture was heated at 90° C. ...

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Abstract

The invention relates to a photosensitive resin composition, a black matrix, a color filter and liquid crystal display elements thereof. The photosensitive resin composition includes (A) an alkali-soluble resin, (B) a polysiloxane, (C) an ethylenically unsaturated compound, (D) a photo-initiator, (E) a first solvent, and (F) a black pigment dispersion. The alkali-soluble resin (A) includes an unsaturated-group-containing resin (A-1) obtained by subjecting a mixture containing (i) an epoxy compound having at least two epoxy groups and (ii) a compound having at least one carboxyl group and at least one ethylenically unsaturated group to polymerization. A weight ratio of the black pigment dispersion (F) to the polysiloxane (B) ranges from 5 to 35. The black matrix formed by the photosensitive resin composition has better surface impedance; and better surface impedance stability can be provided after either thermo treatment or plasma treatment.

Description

technical field [0001] The invention relates to a photosensitive resin composition for a color filter, in particular to a photosensitive resin composition used for a black matrix in a color filter. The invention also provides a black matrix, a color filter and a liquid crystal display element formed from the photosensitive resin composition. Background technique [0002] In order to improve the contrast and display quality of the current liquid crystal display, it is generally used to place a black matrix in the stripe (stripe) and dot (dot) gap of the color filter, and the function of the black matrix can prevent light leakage between pixels, The resulting loss of contrast and color purity. In the past, the material used for the black matrix is ​​mainly chromium or chromium oxide, but when the black matrix is ​​formed with the above materials, there are disadvantages such as complicated manufacturing process, expensive materials, and environmental pollution. In order to s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/004G03F7/027G02B5/20G02F1/1335
CPCG03F7/0007G03F7/032G03F7/0388G03F7/0757G03F7/105G03F7/004
Inventor 廖豪伟曾靖渊李俊贤吴明儒施俊安
Owner CHI MEI CORP
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