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Terpolymer and preparation method thereof, spacer material and touch screen formed by terpolymer and producing methods of touch screen

A terpolymer, touch screen technology, applied in instruments, optics, nonlinear optics, etc., can solve problems such as poor pressing water ripples, pressing water ripples, etc.

Inactive Publication Date: 2014-12-24
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The touch screen is generally obtained by bonding the touch template and the liquid crystal display through the glue bonding process, but when the touch screen made by this process is pressed with a finger, there will be a phenomenon of poor pressing water ripples
This is mainly due to the plastic deformation of the traditional spacer material when the liquid crystal display is attached to the touch panel, and there is a certain distance between the main spacer and the array substrate in the liquid crystal display. When it is pressed again, since the deformation cannot recover by itself, the liquid crystal in the pressed area will spread to the periphery, resulting in poor water ripples when pressed

Method used

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  • Terpolymer and preparation method thereof, spacer material and touch screen formed by terpolymer and producing methods of touch screen
  • Terpolymer and preparation method thereof, spacer material and touch screen formed by terpolymer and producing methods of touch screen
  • Terpolymer and preparation method thereof, spacer material and touch screen formed by terpolymer and producing methods of touch screen

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preparation example Construction

[0055] The embodiment of the present invention also provides a preparation method of the terpolymer provided in the above embodiment, comprising:

[0056] S1: Mix 2-phenoxyethyl acrylate, acrylate or methacrylate, 2-phenoxyethyl methacrylate, and a crosslinking agent uniformly in a molar ratio to prepare a reaction precursor.

[0057] In this step, the above compounds are weighed and mixed in an appropriate molar ratio, wherein the molar ratios are: 2-phenoxyethyl acrylate: 62.4-77.6%; methacrylate or acrylate: 15.6-19.4%; 2-phenoxyethyl methacrylate: 1-20%; cross-linking agent: 2.0%, the reaction precursor can only be obtained after mixing evenly.

[0058] S2: Adding an initiator to the reaction precursor, stirring evenly, blowing nitrogen gas, and heating at a constant temperature of 70-80° C. for 24 hours to obtain the terpolymer.

[0059] In this step, an initiator is added to the reaction precursor, and heated at a constant temperature of 70-80° C. for 24 hours to allow ...

Embodiment 1

[0073] (a) The molar ratio of monomer 2-phenoxyethyl acrylate, 2-phenoxyethyl methacrylate, butyl acrylate, and crosslinking agent ethylene glycol dimethacrylate is 74.4mol%, 18.6 mol%, 5.0mol%, 2.0mol% are mixed evenly;

[0074] (b) Add the initiator azobisisobutyronitrile with a mass ratio of 0.5% to the above mixture, stir and mix, and simultaneously feed nitrogen to remove the oxygen therein, and heat the reaction at a constant temperature of 70°C for 24 hours to obtain a ternary Copolymer, the Tg of this copolymer is 16.2°C;

[0075] (c) using the terpolymer prepared in step (b) to make a spacer on the color filter substrate;

[0076] (d) combining the array substrate dripped with liquid crystal and the color filter substrate coated with the sealant mixture, performing ultraviolet polymerization and thermal polymerization, and then cooling to room temperature to produce a liquid crystal panel;

[0077] (e) coating a photoresist on the touch panel, and fixing it on the l...

Embodiment 2

[0081] (a) the monomer 2-phenoxyethyl acrylate, 2-phenoxyethyl methacrylate, lauryl acrylate, crosslinking agent ethylene glycol dimethacrylate in a molar ratio of 70.4mol%, 17.6mol%, 10.0mol%, 2.0mol% are mixed evenly;

[0082] (b) Add the initiator azobisisobutyronitrile with a mass ratio of 0.5% to the above mixture, stir and mix, and simultaneously feed nitrogen to remove the oxygen therein, and heat the reaction at a constant temperature of 75°C for 24 hours to obtain a ternary Copolymer, the Tg of this copolymer is 10.4°C;

[0083] (c) using the terpolymer prepared in step (b) to make a spacer on the color filter substrate;

[0084] (d) combining the array substrate dripped with liquid crystal and the color filter substrate coated with the sealant mixture, performing ultraviolet polymerization and thermal polymerization, and then cooling to room temperature to produce a liquid crystal panel;

[0085] (e) coating a photoresist on the touch panel, and fixing it on the li...

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Abstract

Embodiments of the invention provide a terpolymer and a preparation method thereof, a spacer material and a touch screen formed by the terpolymer and a producing method of the touch screen, belonging to the field of display, and aiming at avoiding the occurrence of an undesirable water ripple phenomenon when the touch screen is pressed. The terpolymer is prepared through carrying out thermal polymerization on 2-phenoxyethyl acrylate, methacrylate or acrylate, and 2-hydroxyethyl methacrylate in the presence of a crosslinking agent and an initiator; and the terpolymer is deformed when the terpolymer is pressed or the temperature is changed, and restored to the original shape when the temperature rises to the glass-transition temperature thereof again. The terpolymer disclosed by the invention can be applied to the preparation of liquid crystal display touch screens.

Description

technical field [0001] The invention relates to the display field, in particular to a terpolymer and a preparation method thereof, a spacer material formed from the terpolymer, a touch screen and a preparation method thereof. Background technique [0002] Liquid crystal displays are used more and more widely in modern life, such as mobile phone display screens, Note Book display screens, GPS display screens, LCD TV display screens, etc. The touch liquid crystal display has the characteristics of convenient use, beautiful appearance, sealed structure, fast response, etc., and is currently widely used in the field of liquid crystal displays (especially mobile phones, tablet computers, etc.). [0003] The touch screen is generally obtained by bonding the touch template and the liquid crystal display through glue bonding process, but when the touch screen made by this process is pressed with a finger, there will be a phenomenon of poor pressing water ripples. This is mainly due...

Claims

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Application Information

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IPC IPC(8): C08F220/30C08F220/18C08F220/68C08F222/14G02F1/1333G02F1/1339
Inventor 武晓娟谢建云
Owner BOE TECH GRP CO LTD
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