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Colored photosensitive resin composition, pattern layer, color filter and display device

A photosensitive resin and composition technology, applied in optics, instruments, optical filters, etc., can solve the deterioration of process characteristics, reduction of production yield, insufficient improvement of solvent resistance, transmittance and elastic recovery rate, etc. problems, to achieve the effect of improving reliability and elastic recovery rate

Active Publication Date: 2019-05-17
DONGWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the content of the pigment is increased to improve the light-shielding properties, it is difficult to realize the basic properties of the black matrix such as compression displacement and elastic recovery rate, and when the content of carbon black is increased to reduce the content of the pigment, the process characteristics continue. Deterioration, the defect rate becomes higher, resulting in the problem of lower production yield
[0006] Korean Laid-Open Patent No. 10-2011-0027079 relates to a black photosensitive composition and a light-shielding layer formed using the composition, and discloses a black photosensitive composition containing orange, blue and purple pigments in a specific mixing ratio, but in Insufficient improvements in solvent resistance, permeability, and elastic recovery
[0007] In addition, Korean Laid-Open Patent No. 10-2014-0121824 relates to a colored photosensitive composition, and similarly discloses a black photosensitive composition containing orange, blue, and purple pigments in a specific mixing ratio, but the optical density, etc. not enough improvement

Method used

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  • Colored photosensitive resin composition, pattern layer, color filter and display device
  • Colored photosensitive resin composition, pattern layer, color filter and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～12 and comparative example 1～2

[0122] Based on the composition of Table 1 below, the colored photosensitive resin compositions of Examples 1 to 12 and Comparative Examples 1 to 2 were produced.

[0123] [Table 1]

[0124] (Unit: parts by weight)

[0125]

[0126] O64: C.I. Pigment Orange 64

[0127] B16: C.I. Pigment Blue 16

[0128] V23: C.I. Pigment Violet 23

[0129] CB: Carbon black

[0130] OBP: organic black pigment

[0131] B15:6: C.I. Pigment Blue 15:6

[0132] B60: C.I. Pigment Blue 60

[0133] B (dispersion resin): Alkali-soluble resin of synthesis example

[0134] M (photopolymerizable compound): Dipentaerythritol hexaacrylate (DPHA) (Nippon Kayaku Co., Ltd.)

[0135] PI (photopolymerization initiator): 1-[9-ethyl-6-(2-methylbenzoyl)-9H-carbazol-3-yl]-ethanone-1-(O-acetyloxime)( Irgacure OXE-02: Ciba (Ciba)

[0136] D1 (Additive 1): SOLSPERSE 5000 (Lubrisol)

[0137] D2 (Additive 2): F554 (DIC Company)

[0138] S (solvent): propylene glycol monomethyl ether acetate (PGMEA)

[0139] Substrate manufacturing

[0140] T...

experiment example

[0142] 1. Reliability evaluation

[0143] In accordance with the above-mentioned substrate manufacturing criteria, a colored substrate was produced by coating the entire surface with a black photosensitive resin without a pattern. Cut it into a size of 3cmx3cm, immerse it in the NMP solvent, and then heat it at 100°C for 60 minutes. After that, only the NMP solvent was extracted, and the degree of elution in the NMP solvent was measured using a UV-visspectrometer (UV-visspectrometer) to measure the absorbance and expressed as an integrated value of 300-800 nm. The specific evaluation criteria are as follows, and the measurement results are described in Table 2 below.

[0144] [Evaluation criteria]

[0145] Reliability (NMP dissolution reliability): 300~800nm ​​Abs

[0146] Excellent ◎: 0.5 or less

[0147] Good ○: More than 0.5 and 1.0 or less

[0148] Insufficient△: more than 10 and less than 12

[0149] Deterioration X: greater than 1.2

[0150] 2. Evaluation of light characteristics ...

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Abstract

The invention relates to a colored photosensitive resin composition, a pattern layer manufactured using the colored photosensitive resin composition, and a color filter and a display device comprisingthe pattern layer, the colored photosensitive resin composition comprising a colorant containing a blue pigment and an orange pigment, an alkali-soluble resin, a photopolymerizable compound, a photopolymerization initiator, and a solvent.

Description

Technical field [0001] The present invention relates to a colored photosensitive resin composition, a pattern layer manufactured using the composition, and a color filter and a display device including the pattern layer. Background technique [0002] Color filters are widely used in various display devices such as imaging elements and liquid crystal display devices (LCDs), and their applications are rapidly expanding. The color filters used in the above-mentioned imaging elements, liquid crystal display devices, etc. are formed by colored patterns of three colors of red (Red), green (Green) and blue (Blue), or by yellow (Yellow), magenta (Magenta) ) And blue-green (Cyan) coloring patterns are formed. [0003] Each colored pattern of the above-mentioned color filter is generally formed using a colored photosensitive resin composition containing a colorant such as a pigment or dye, an alkali-soluble resin, a photopolymerizable compound, a photopolymerization initiator, and a solvent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/027G02B5/20
CPCG02B5/20G02F1/133514G03F7/0007G03F7/004G03F7/027G03F7/028G03F7/105
Inventor 李贤普权玟廷曺升铉
Owner DONGWOO FINE CHEM CO LTD