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Carbon black dispersion, photosensitive resin composition, color filter, display device

A technology of dispersion and carbon black, which is applied in the fields of photosensitive resin composition, carbon black dispersion, display device and color filter

Active Publication Date: 2022-03-25
BEIJING SINEVA MATERIAL TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It is difficult for the photosensitive resin composition in the prior art to meet the requirements of high resistance and high resolution while achieving high light-shielding properties

Method used

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  • Carbon black dispersion, photosensitive resin composition, color filter, display device
  • Carbon black dispersion, photosensitive resin composition, color filter, display device
  • Carbon black dispersion, photosensitive resin composition, color filter, display device

Examples

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preparation example Construction

[0068] According to another aspect of the present invention, the preparation method of carbon black dispersion as described above is provided, comprising the following steps:

[0069] According to another aspect of the present invention, the preparation method of carbon black dispersion as described above is provided, comprising the following steps:

[0070] The carbon black dispersion is obtained by dispersing the solvent, the (meth)acrylate adduct represented by the formula (I), the dispersant, and the carbon black subjected to surface oxidation treatment.

[0071] According to one embodiment of the present invention, the preparation method of carbon black dispersion can comprise the following steps:

[0072] Stir the solvent, the (meth)acrylate adduct represented by the formula (I) and the dispersant evenly, then add the carbon black treated with surface oxidation and disperse to obtain the carbon black dispersion.

[0073] Specifically, in the preparation process, the sti...

preparation Embodiment 2

[0087] Preparation Example 2 Preparation of methacrylate adduct I-1

[0088] Add 4mol of monomer 1, 1mol of monomer 2, catalyst Pd into a 500mL round bottom flask 2 dba 3 · CHCl 3 / Xantphos, CS 2 CO 3 and the solvent dioxane, heated to 100°C, and reacted for 2 hours to obtain compound A. 1 mol of compound A, 1 mol of pyromellitic dianhydride and propylene glycol methyl ether acetate (PMA) were placed in a round bottom flask, and reacted at 80°C for 2 hours to obtain the methacrylate adduct I-1. Mw=5103, acid value 101.7.

[0089]

preparation Embodiment 3

[0090] Preparation Example 3 Preparation of methacrylate adduct I-2

[0091] The preparation method is basically the same as that of Preparation Example 2, except that the monomer 1 is different, and the monomer 2 is not used. Mw=5017, acid value 100.9.

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Abstract

The invention relates to the field of liquid crystal display, in particular to a carbon black dispersion, a photosensitive resin composition, a color filter and a display device. The carbon black dispersion according to the present invention comprises (meth)acrylic acid ester adduct shown in the carbon black of surface oxidation treatment, dispersant and formula (I): wherein, R 1 , R 2 each independently selected from a hydrogen atom, a C1-C7 alkyl group, a halogen atom or a phenyl group, R 3 , R 4 Each independently represents a hydrogen atom or a methyl group, and A represents ‑O‑, ‑CH 2 ‑,‑C(CF 3 ) 2 ‑,‑Si(CH 3 ) 2 ‑,‑C(CH 3 ) 2 ‑, the group represented by formula (II), n is selected from an integer of 1 to 20, and m is selected from 0 or 1;

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a carbon black dispersion, a photosensitive resin composition, a color filter and a display device. Background technique [0002] Color filter is one of the important components of LCD. In order to improve the display effect of the display and display more vivid images, the black matrix on the color filter is required to have stronger light-shielding properties, so more black pigments such as carbon black are required to be added to the photosensitive resin composition. [0003] However, as a black pigment, carbon black absorbs light very strongly, so that adding more carbon black will cause the sensitivity of the photosensitive resin composition to ultraviolet light to decrease, so that the bottom curing effect of the cured film is not good, and patterns appear during development. Peeling, uneven edges, etc. In addition, carbon black has certain conductivity, and increasi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/004G03F7/027G02F1/1335
Inventor 张盼
Owner BEIJING SINEVA MATERIAL TECH CO LTD
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