Photosensitive resin composition, black columnar spacer using same, and color filter

A technology of photosensitive resin and composition, applied in the field of color filters, which can solve the problems of UV transmittance degradation, black columnar spacers unfavorable photocuring, etc.

Active Publication Date: 2022-04-15
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Black column spacers selectively use pigments that increase the optical density (OD) to achieve light blocking properties, but black column spacers may be detrimental to light curing as UV transmission is also degraded

Method used

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  • Photosensitive resin composition, black columnar spacer using same, and color filter
  • Photosensitive resin composition, black columnar spacer using same, and color filter
  • Photosensitive resin composition, black columnar spacer using same, and color filter

Examples

Experimental program
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Effect test

example 1

[0195] The photopolymerization initiator was dissolved in the solvent in the composition given in Table 1, and the solution was stirred at room temperature for 2 hours. Subsequently, a binder resin and a photopolymerizable monomer were added thereto, and the mixture was stirred again at room temperature for 2 hours. Then, a colorant was added thereto, the mixture was stirred at room temperature for 1 hour, a silane-based coupling agent was added thereto as another additive, and the obtained mixture was stirred at room temperature for 1 hour. The resulting solution was filtered three times to remove impurities, thereby preparing a photosensitive resin composition according to Example 1.

[0196] [Table 1]

[0197] (unit: gram)

[0198]

[0199] (In Table 1, NCI831 has the maximum absorbance at 380nm, while TEB has the maximum absorbance at 345nm)

[0200] (In Table 1, the colorants have maximum transmission at 400nm)

[0201] (In Table 1, the pigment solids are contained...

example 2

[0203] A photosensitive resin composition according to Example 2 was prepared according to the same method as Example 1 except for using the following components to have the composition shown in Table 2.

[0204] [Table 2]

[0205] (unit: gram)

[0206]

[0207] (In Table 2, NCI831 has the maximum absorbance at 380nm, while TEB has the maximum absorbance at 345nm)

[0208] (In Table 2, the colorants have maximum transmission at 400nm)

[0209] (In Table 2, pigment solids are contained in an amount of 10% by weight based on the total amount of the pigment dispersion liquid)

example 3

[0211] A photosensitive resin composition according to Example 3 was prepared according to the same method as Example 1 except using the following components to have the composition shown in Table 3.

[0212] [table 3]

[0213] (unit: gram)

[0214]

[0215]

[0216] (In Table 3, NCI831 has the maximum absorbance at 380nm, while TEB has the maximum absorbance at 345nm)

[0217] (In Table 3, the colorants have maximum transmission at 400nm)

[0218] (In Table 3, pigment solids are included in an amount of 10% by weight based on the total amount of the pigment dispersion liquid)

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Abstract

Provided is a photosensitive resin composition, a black columnar spacer manufactured by using the photosensitive resin composition, and a color filter comprising the black columnar spacer, wherein the photosensitive resin composition comprises: (A) a colorant, at 360nm to a maximum transmittance at 410 nm; (B) a photopolymerization initiator having a maximum absorbance at 360 nm to 410 nm; (C) a photopolymerizable monomer; and (D) a solvent.

Description

technical field [0001] The present disclosure relates to a photosensitive resin composition, a black column spacer using the same (black column spacer, black column spacer, black column spacer), and a color filter (color filter) including the black column spacer. Background technique [0002] The photosensitive resin composition is necessarily used for display devices such as color filters, liquid crystal display materials, organic light emitting diodes, or display panel materials. For example, color filters such as color liquid crystal displays etc. require a black matrix on the border between colored layers such as red, green, blue, etc. to enhance display contrast or chromophore effect. The light blocking layer may be mainly formed of a photosensitive resin composition. [0003] Recently, there has been an attempt to use a black matrix material as a columnar spacer supporting two TFTs with a liquid crystal layer therebetween and a C / F substrate, and the columnar spacer i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/028G03F7/004G03F7/033G03F7/00G02B5/20G02F1/1339
CPCG02F1/1339G03F7/00G03F7/004G02B5/20G03F7/028G03F7/033
Inventor 柳娥凛金度煜金贞延朴真佑李俊昊崔玄武
Owner SAMSUNG SDI CO LTD
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