Frame sealant, liquid crystal panel, liquid crystal display and preparation method of liquid crystal panel

A technology for liquid crystal panel and frame sealing glue, applied in the fields of frame sealing glue, liquid crystal display and preparation, and liquid crystal panel, can solve the problems of long-term power-on state, blackening of reliability, blackening of display, etc., to prevent bad blackening , the effect of preventing peeling

Active Publication Date: 2017-06-13
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the temperature is close to the clearing point of the liquid crystal or exceeds the clearing point, the dielectric anisotropy of the liquid crystal gradually disappears, and there is no response to the action of the electric field. For a normally black FFS display, the display will appear black when the light is turned on.
Especially in order to increase the transmittance of liquid crystal displays, negative liquid crystals are usually used, and negative liquid crystals generally have a lower cooling point in order to increase the response speed and reduce the operating voltage (Vop), so high-resolution negative liquid crystal displays are more likely to grow Time power-on state or bad blacking of reliability

Method used

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  • Frame sealant, liquid crystal panel, liquid crystal display and preparation method of liquid crystal panel
  • Frame sealant, liquid crystal panel, liquid crystal display and preparation method of liquid crystal panel
  • Frame sealant, liquid crystal panel, liquid crystal display and preparation method of liquid crystal panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] (a) Polyamide HY-608 and graphene CPG-1508 are prepared by a solution mixing method to obtain a graphene polymer high thermal conductivity composite material, wherein the filling ratio of graphene is 20%;

[0075] (b) Mix the frame-sealing glue matrix SWB-73 (purchased from Sekisui) and the graphene polymer high thermal conductivity composite material in (a) evenly by weight ratio of 95% by weight / 5% by weight;

[0076] (c) Put the mixture of the frame sealing rubber matrix and the graphene polymer high thermal conductivity composite material into the defoamer for degassing in the dark, and the degassing time is 2 hours;

[0077] (d) apply the mixture in (c) to the color filter (CF) substrate, operate in a dark place, and the mixture is evenly coated; and

[0078] (e) After combining the TFT substrate dripped with liquid crystal and the CF substrate coated with the sealant mixture, carry out ultraviolet polymerization and thermal polymerization to manufacture a liquid c...

Embodiment 2

[0080] (a) epoxy resin X80 and graphene CPG-1606 are prepared by melt blending method to obtain graphene polymer high thermal conductivity composite material, wherein the filling ratio of graphene is 25%;

[0081] (b) Mix the frame sealing glue matrix SUR-66 (purchased from Sekisui) and the graphene polymer high thermal conductivity composite material in (a) evenly by weight ratio of 90% by weight / 10% by weight;

[0082] (c) Put the mixture of the sealing rubber matrix and the graphene polymer high thermal conductivity composite material into the degasser for degassing treatment in the dark, and the degassing time is 2.5 hours;

[0083] (d) the mixture in (c) is coated on the CF substrate, and the operation is protected from light, and the mixture is evenly coated; and

[0084] (e) After combining the TFT substrate dripped with liquid crystal and the CF substrate coated with the sealant mixture, carry out ultraviolet polymerization and thermal polymerization to manufacture a l...

Embodiment 3

[0086] Repeat Example 1, except that the filling ratio of graphene in the graphene-polymer composite is 40% by weight, and the polyamide is HY-545.

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Abstract

The invention provides a frame sealant, a liquid crystal panel, a liquid crystal display and a preparation method. The frame sealant comprises a graphene-polymer composite and a frame sealant matrix, wherein the graphene-polymer composite comprises, by weight, 10%-15% of graphene injected into a polymer; the graphene-polymer composite is uniformly scattered in the frame sealant matrix; by the total weight of the graphene-polymer composite and the frame sealant matrix, the frame sealant accounts for 70%-97%, and the graphene-polymer composite accounts for 3%-30%. The frame sealant can prevent the liquid crystal panel from poor blackening due to high heat conductivity, prevent vapor from entering the display through the frame sealant due to high hydrophobicity, accordingly, prevent peeling, frame display mura and other defects and prevent graphene from agglomerating .

Description

technical field [0001] The present disclosure relates to the technical field of liquid crystal display, in particular to a frame sealant, a liquid crystal panel, a liquid crystal display and a preparation method. Background technique [0002] With the rapid development of the mobile phone industry, customers have higher and higher requirements for the appearance, performance and display weight of mobile phones, and the corresponding requirements for liquid crystal displays are gradually increasing, especially the requirements for the frame of liquid crystal displays are getting narrower and the resolution is getting higher and higher. The higher, FHD, QHD and even 4K2K displays are gradually being developed and applied. [0003] The narrower the liquid crystal frame, the narrower the width of the sealant, and the uneven heating during heat curing is more likely to cause the sealant to be too narrow, or even the sealant to break, and water vapor to enter and other defects. ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C09J133/00C09J163/10C09J11/08C09J11/04G02F1/1333G02F1/1339
CPCC09J11/04C09J11/08C09J133/00G02F1/1333G02F1/1339C08L2203/206C08L63/10C08L77/00C08K3/04C08L63/00C08L77/06C09J133/068C09J163/00C08K3/042G02F2202/025C09K2323/05C09K2323/055C09K2323/00C09J9/00C09J177/00C09J133/04C09J2433/00G02F2202/36C09J2477/00C09J2463/00C09J5/00C09J2301/416
Inventor武晓娟陈会顺
OwnerBOE TECH GRP CO LTD