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Polymer dye, photoresist composition and preparation method and application of photoresist composition

A polymer and composition technology, applied in organic dyes, optics, nonlinear optics, etc., can solve the problems of display panel display quality degradation, dyes are easy to form floating colors, etc.

Active Publication Date: 2014-12-10
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The disadvantage of the prior art is that the dyes in the existing photoresist composition are prone to form floating colors, resulting in a decrease in the display quality of the display panel

Method used

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  • Polymer dye, photoresist composition and preparation method and application of photoresist composition
  • Polymer dye, photoresist composition and preparation method and application of photoresist composition
  • Polymer dye, photoresist composition and preparation method and application of photoresist composition

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preparation example Construction

[0066] The embodiment of the present invention also provides a preparation method of the above-mentioned polymer dye, comprising:

[0067] Step a, performing a substitution reaction with a dye containing an aromatic hydroxyl group or an aromatic amino group and a monohalogenated glycerol under alkaline conditions to remove water to generate a glycerolated dye;

[0068] Step b, performing a substitution reaction between the glycerolated dye and chlorinated trimellitic anhydride to dehydrochloride to generate a dianhydrided dye;

[0069] Step c, polymerizing the diacid anhydride dye and aromatic diamine to generate the polymer dye shown in formula I.

[0070] The embodiment of the present invention also provides a preparation method of any one of the photoresist compositions described above, the preparation method comprising:

[0071] The colorant, alkali-soluble resin, multifunctional monomer, photoinitiator, auxiliary agent and organic solvent are taken in parts by weight, di...

Embodiment 1

[0074] In a three-neck flask equipped with a thermometer, a stirrer and a reflux tube, add 1.05 molar parts of 2-bromoglycerol (163 parts by weight), 2 molar parts of potassium carbonate (276 parts by weight), 1 molar part of acid blue 90 dye (702 parts by weight), 2000 parts by weight of propylene glycol methyl ether acetate (PMA) and 2000 parts by weight of toluene. After the dropwise addition was complete, stir and heat to reflux. After reacting for 8 hours, the reaction solution was washed and extracted with water, and the water phase was further salted out with 21% brine for 2 hours. After filtering, the filter cake was washed with saturated brine, and recrystallized twice to obtain glycerolated dye with a yield of 60%. In this reaction, the hydrogen atom in -NH- in the acid blue 90 dye molecule and the bromine atom in 2-bromoglycerol form hydrogen bromide and take off.

[0075] In a three-necked flask equipped with a thermometer, a stirrer and a dropping bottle, 1.05 m...

Embodiment 2

[0079] In a three-neck flask equipped with a thermometer, a stirrer and a reflux tube, add 1.05 molar parts of 2-bromoglycerol (163 parts by weight), 2 molar parts of potassium carbonate (276 parts by weight), 1 molar part of acid blue 90 dye (702 parts by weight), 2000 parts by weight of PMA and 2000 parts by weight of toluene. After the dropwise addition was complete, stir and heat to reflux. After reacting for 8 hours, the reaction solution was washed and extracted with water, and the water phase was further salted out with 21% brine for 2 hours. After filtering, the filter cake was washed with saturated brine, and the obtained solid was recrystallized twice to obtain a glycerolated dye with a yield of 60%.

[0080] In a three-necked flask equipped with a thermometer, a stirrer and a dropping bottle, 1.05 mole parts of trimellitic anhydride monoacyl chloride small particles (221 parts by weight), 800 parts by weight of PMA and 800 parts by weight of toluene were added. In...

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Abstract

The invention relates to the technical field of display and in particular relates to a polymer dye and a preparation method thereof, a photoresist composition and a preparation method thereof as well as application of the photoresist composition in color resist, a color film substrate and a display device. The structural formula of the polymer dye is shown in a formula I, wherein R1 refers to a dye group containing aromatic hydroxyl or aromatic amido, and R2 refers to a hydrogen atom, or R2 refers to a dye group containing aromatic hydroxyl or aromatic amido, and R1 refers to a hydrogen atom; R3 is aryl; n ranges from 5 to 100. Because the dissolubility of the polymer dye of large molecular weight is lower than the dissolubility of a pure dye molecule, the polymer dye is difficultly dissolved out again, surface dyeing is further avoided, and the display quality of the display is improved. The structural formula is as shown in the specification.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a polymer dye and a preparation method thereof, a photoresist composition and a preparation method thereof, and applications in color photoresists, color film substrates and display devices. Background technique [0002] At present, the main structure of a Thin Film Transistor Liquid Crystal Display (TFT-LCD for short) includes an array substrate and a color filter substrate (CF) that are boxed together. Among them, the color filter substrate mainly includes: glass substrate, black matrix, color photoresist and protective film. Generally speaking, the black matrix is ​​arranged in the form of grids, stripes or spots between the color patterns formed by the color photoresist. The main function of the black matrix is ​​to block stray light and prevent light leakage between pixels; the main function of the color photoresist is to use the filter The way of light produces the three ...

Claims

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Application Information

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IPC IPC(8): C09B69/10G02F1/1335
Inventor 邓伟田肖雄李琳
Owner BOE TECH GRP CO LTD
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