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A kind of black frame glue and liquid crystal panel

A black frame and acrylate technology, applied in adhesives, instruments, optics, etc., can solve the problems of liquid crystal pollution, slow curing speed, etc., and achieve the effects of improving adhesion, increasing adhesion, good shaping ability and adhesion Effect

Active Publication Date: 2021-10-08
SUZHOU CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The curing speed of this black frame glue is slower than that of traditional frame glue, and it is easier to pollute the liquid crystal during the curing process

Method used

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  • A kind of black frame glue and liquid crystal panel
  • A kind of black frame glue and liquid crystal panel
  • A kind of black frame glue and liquid crystal panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment provides a black frame glue, which contains raw materials in parts by weight: 70 parts by weight of acrylate, 30 parts by weight of epoxy resin, 0.05 parts by weight of free radical initiator, 5 parts by weight of curing agent, filler 6 parts by weight, 5 parts by weight of coupling agent, 0.5 parts by weight of pigment and 5 parts by weight of bio-melanin.

[0041] The biological melanin is isomelanin nanoparticles, and the preparation method refers to Xuhao Zhou et al, Artificial Allomelanin Nanoparticles, ACS Nano.

[0042] The acrylate is a dicyclopentadiene-skeleton (meth)acrylate and an isocyanuryl-skeleton (meth)acrylate.

[0043] The epoxy resin adopts bisphenol A type epoxy resin.

[0044] The free radical initiator adopts benzophenone compound.

[0045] The curing agent adopts adipic acid dihydrazide.

[0046] The filler is spherical silica.

[0047] The coupling agent uses γ-aminopropyltrimethoxysilane.

[0048] The pigment is titanium bl...

Embodiment 2

[0050] This embodiment provides a black frame glue, which contains raw materials in parts by weight: 90 parts by weight of acrylate, 10 parts by weight of epoxy resin, 0.1 part by weight of free radical initiator, 0.5 parts by weight of curing agent, filler 10 parts by weight, 0.1 parts by weight of coupling agent, 5 parts by weight of pigment and 0.01 part by weight of bio-melanin.

[0051] The biological melanin is eumelanin nanoparticles, and the preparation method refers to: Ming Xiao et al, Bio-Inspired Structural Colors Produced via SelfAssembly of Synthetic MelaninNanoparticles, CS Nano, 9(5), 5454-5460.

[0052] The acrylate is a (meth)acrylate with a dicyclopentadiene skeleton.

[0053] The epoxy resin adopts bisphenol A type epoxy resin.

[0054] The free radical initiator uses an azo compound.

[0055] The curing agent adopts dihydrazide isophthalic acid.

[0056] The filler is calcium carbonate and aluminum oxide.

[0057] The coupling agent uses γ-glycidoxypro...

Embodiment 3

[0060] This embodiment provides a black frame glue, which contains raw materials in parts by weight: 50 parts by weight of acrylate, 50 parts by weight of epoxy resin, 0.01 parts by weight of free radical initiator, 10 parts by weight of curing agent, filler 1 part by weight, 10 parts by weight of coupling agent, 0.1 part by weight of pigment and 10 parts by weight of bio-melanin.

[0061] The bio-melanin is isomelanin nanoparticles, and the preparation method is the same as that in Example 1.

[0062] The acrylate is a (meth)acrylate with an isocyanuryl skeleton.

[0063] The epoxy resin adopts bisphenol F type epoxy resin.

[0064] The free radical initiator uses acyl phosphine oxide compounds, peroxides and azo compounds.

[0065] The curing agent adopts adipic acid dihydrazide.

[0066] The filler adopts spherical silica and alumina.

[0067] The coupling agent uses γ-isocyanate propyl trimethoxysilane.

[0068] The pigment adopts titanium black and fullerene.

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Abstract

The embodiment of the present application discloses a black frame glue. The raw materials of the black frame glue include acrylate, epoxy resin, free radical initiator, curing agent, filler, coupling agent and bio-melanin. The application also discloses a liquid crystal panel. The bio-melanin nanoparticles are added to the black frame glue of the present application to improve the ability of the black frame glue to scavenge free radicals, and also improve the adhesion of the black frame glue. Applying the black frame glue of the present application to a liquid crystal panel can not only improve the contamination of the liquid crystal panel, but also improve the OD value and bonding performance.

Description

technical field [0001] This application relates to the technical field of liquid crystal panel materials, in particular to a black frame glue and a liquid crystal panel. Background technique [0002] In PSVA (Polmer Stabilized Vertically Aligned) LCD panels, when the sealant is not fully cured, active free radicals will precipitate and contaminate the liquid crystal, and the free radicals in the liquid crystal will react with them to cause adverse phenomena such as whitening / small bright spots around the periphery. At present, in order to reduce light leakage, BM process and materials are omitted, and corresponding to BOA / BPS products, a black frame glue has been developed, which needs to be added with black filler (usually carbon black) to increase the optical density (OD) value. The curing speed of this black frame glue is slower than that of traditional frame glue, and it is more likely to pollute the liquid crystal during the curing process. [0003] During the research...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J4/06C09J4/02C09J11/06C09J11/04G02F1/1339
CPCC09J4/06C09J11/04C09J11/06G02F1/1339
Inventor 车新苑
Owner SUZHOU CHINA STAR OPTOELECTRONICS TECH CO LTD
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