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Cured resin, black photoresist, optical filter and their preparation method, display device

A black photoresist, curing resin technology, applied in the direction of filter, optical components, opto-mechanical equipment, etc., can solve the problems of high energy consumption, high curing temperature, increased cost, etc., to save energy, low curing temperature, high The effect of heat resistance

Inactive Publication Date: 2015-11-25
BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This requires a higher curing temperature (up to 200°C) in the production of optical filters, on the one hand for the volatilization of solvents during the reaction process, and on the other hand for good curing of the resin and complete reaction of residual unsaturated bonds , but this increases the cost of the product and also produces higher energy consumption

Method used

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  • Cured resin, black photoresist, optical filter and their preparation method, display device
  • Cured resin, black photoresist, optical filter and their preparation method, display device
  • Cured resin, black photoresist, optical filter and their preparation method, display device

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preparation example Construction

[0087] The embodiment of the present invention provides a method for preparing cured resin. In the preparation method, the raw materials of dibasic anhydrides and diamines used to prepare polyimide resins have a wide range of sources and a simple synthesis process. The cured resin finally obtained by the addition reaction overcomes the problem of high temperature curing caused by the curing resin in the traditional process, and realizes the low temperature curing of the cured resin. The cured resin prepared by the preparation method can not only reduce the energy consumption required in the production process of the optical filter.

[0088] Corresponding to the above-mentioned black photoresist, the embodiment of the present invention also provides a method for preparing a black photoresist, comprising figure 2 As shown, the method includes,

[0089] Step N1: Weigh the raw cured resin, colorant, solvent, starter and additives and mix them evenly.

[0090] In this step, the ...

Embodiment 1

[0109] Preparation of Cured Resin

[0110] First, take 1 part of 3,3,4,4-biphenyldianhydride and 1 part of 2,2-bis(3-aminophenyl)hexafluoropropane by weight, and dissolve them in 15 parts of ethylene glycol di in methyl ether, fully mixed, and injected into a four-necked bottle equipped with a heating device, a reflux device, a stirring device and a dropping device; after that, 2 parts of methacrylate were weighed by weight, and dissolved in 4 parts of ring fully dissolved in hexane, and injected into the reaction vessel; finally, weigh 0.3 parts of 4-hydroxyphthalic anhydride and 0.03 parts of azobisisovaleronitrile by weight, and dissolve them in 1 part of ethylene glycol dimethyl ether , fully dissolved, added dropwise into a four-necked flask, protected by nitrogen, and reacted for 2.5 hours at a temperature of 80°C to obtain a cured resin.

[0111] The cured resin was analyzed by gel permeation chromatography to obtain: the measured value of the molecular weight of the c...

Embodiment 2

[0117] Preparation of Cured Resin

[0118] First, take 1 part of pyromellitic dianhydride and 1.2 parts of 1,4-bis(aminomethyl)cyclohexane by weight, and dissolve the two in 20 parts of 1,1,1-trichloroethane, Mix well and inject into a four-necked bottle equipped with a heating device, a reflux device, a stirring device and a dropping device; after that, weigh 3 parts of styrene by weight, dissolve it in 7 parts of cyclohexane, and fully dissolve , also injected into the reaction vessel; finally, weigh 0.5 parts of 4-hydroxyphthalic anhydride and 0.06 parts of azobisisovaleronitrile by weight, and dissolve the two in 2 parts of 1,1,1-trichloroethane, fully Dissolve it, add it dropwise into a four-necked bottle, pass through nitrogen protection, and react at a temperature of 120° C. for 2 hours to obtain a cured resin.

[0119] The cured resin was analyzed by gel permeation chromatography to obtain: the measured value of the molecular weight of the cured resin was 43448.96; th...

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Abstract

Provided in the present invention are a curable resin composition, a black photoresist, a filter and a preparation method and a display device thereof, which belong to the field of liquid crystal display. The curable resin composition of the invention can reduce the curing temperature of the black photoresist and provide a good overall performance. The curable resin composition comprises a partially imidized polyamic acid and an ethylenically unsaturated component. The invention can be used in the preparation technology of filters.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a cured resin, a black photoresist, an optical filter, a preparation method thereof, and a display device. Background technique [0002] The optical filter is a key component for liquid crystal display to achieve colorization, and it is also a key component with high cost in liquid crystal display. Optical filters are usually composed of a glass substrate, black matrix, filter layer, protective layer and ITO (indium tin oxide) conductive layer. The current method for preparing a black matrix mainly coats a black photoresist material on a transparent glass substrate, and then completely cures the black photoresist material to form a black matrix. [0003] In the above method, the black photoresist material usually used to prepare the black matrix includes components such as pigments for coloring, unsaturated monomers, alkali-soluble resins, and high-boiling point solvents. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/10G03F7/004G02B5/20G02F1/1335
CPCC08G73/10G02B5/201G02F1/1335G03F7/004G03F7/0007G03F7/027G03F7/105
Inventor 李宏彦杨久霞
Owner BEIJING BOE OPTOELECTRONCIS TECH CO LTD