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Colored photosensitive resin composition for forming front light-shielding layer of display device

A technology of photosensitive resin and light shielding layer, which is applied in the direction of photosensitive materials, optics, and optomechanical equipment used in optomechanical equipment. It can solve the problems of poor productivity, time-consuming, and large material consumption, and prevent yellowing and coloring , Improve reflective brightness, improve the effect of adhesion

Active Publication Date: 2019-11-01
DONGWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the photoresist method has disadvantages in that productivity is poor since complicated processes such as exposure and development must be performed; and material consumption is too large
In addition, the rolling method has the disadvantage that it is not easy to form a precise pattern
[0008] In addition, the vacuum evaporation method also has the disadvantage of being significantly time-consuming for forming a coating film having a thickness of 15 μm to 25 μm.

Method used

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  • Colored photosensitive resin composition for forming front light-shielding layer of display device
  • Colored photosensitive resin composition for forming front light-shielding layer of display device
  • Colored photosensitive resin composition for forming front light-shielding layer of display device

Examples

Experimental program
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Effect test

preparation example Construction

[0197] Preparation of colorant dispersion composition

[0198] By means of a sand mill, by mixing 60.51 g of TR-81 (available from HUNTMAN), 1.21 g of BYK-180 (available from BYK) as a dispersant, and 38.28 g of propylene glycol monomethyl ether acetate as a solvent / Dispersion was carried out for 2 hours to prepare a colorant dispersion composition of a colored photosensitive resin composition for forming a front light-shielding layer. Among them, TR-81 has 93% SiO 2 、Al 2 o 3 Surface treated TiO with organic materials 2 .

Embodiment 1

[0200] A colored photosensitive resin composition for forming a front light-shielding layer of a display device including an acrylic copolymer represented by Chemical Formula 8 in Table 1 below was prepared using composition ratios given in Table 1.

[0201]

[0202] The weight average molecular weight (Mw) of the compound of Chemical Formula 8 was about 10000, and the ratio of a':b':c':d' was 15:15:40:30.

[0203] [Table 1]

[0204]

Embodiment 2

[0206] Except for using the compound of chemical formula 8 whose ratio of a':b':c':d' is 20:15:40:25, the front light for forming the display device is prepared by the same method as the above-mentioned Example 1 A colored photosensitive resin composition for a shielding layer.

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Abstract

The present invention relates to a coloring photosensitive resin composition used for forming a right side light shielding layer of a display device. The coloring photosensitive resin composition comprises a colorant (A) of a white pigment, a polyacrylic acid copolymer (B), a photopolymerization compound (C), a photoinitiator (D), an antioxidant (E), a solvent (F) and an additive (G), wherein the polyacrylic acid copolymer (B) comprises the repeated units represented by the chemical formulas (1a-1d)or the repeated units represented by the chemical formulas (2a-2d), and the glass-transition temperature of the polyacrylic acid copolymer (B) is 100 DEG C or less than 100 DEG C.

Description

[0001] This application claims the benefit of Korean Patent Application No. KR 10-2013-0108965 filed on September 11, 2013, which is hereby incorporated by reference in its entirety into this application. technical field [0002] The present invention relates to a colored photosensitive resin composition for forming a frontal light-shielding layer of a display device. Background technique [0003] Generally, a bezel as a light-shielding layer on the front surface of a display device is formed on a display device such as LCD (Liquid Crystal Display), PDP (Plasma Display Panel), OLED (Organic Light Emitting Diode), AMOLED (Active Matrix Organic Light Emitting Diode), etc. The front edge, and the bezel acts to reduce reflectivity to improve visibility of the display device, increase contrast and shield the invisible interior from light. [0004] The frame is formed by a photoresist method using a colored photosensitive composition or by a roll printing method. In addition, a v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/027G03F7/004
CPCG02F1/13G02F1/1303G03F7/004G03F7/0045G03F7/0047
Inventor 郑博兰曺升铉
Owner DONGWOO FINE CHEM CO LTD
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