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Frame sealing adhesive, packaging method of display panel, and display panel

A display panel and packaging method technology, applied in optics, instruments, adhesive additives, etc., can solve problems such as liquid crystal pollution, sealant puncture, display panel yellowing, etc., to reduce impact force, avoid pollution, and improve quality Effect

Active Publication Date: 2018-04-06
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, during the assembly process of the array substrate and the color filter substrate, since the liquid crystal and the sealant are in direct contact at the junction, the liquid crystal may impact the sealant before polymerization during the assembly process, causing the sealant to be damaged. The occurrence of puncture and other phenomena; in addition, in the process of ultraviolet polymerization and thermal polymerization, small molecules in the sealant (such as: ultraviolet polymerizable monomer and thermal polymerizable monomer) are easy to diffuse into the liquid crystal, causing pollution to the liquid crystal, In particular, unpolymerized UV-polymerizable monomers and heat-polymerizable monomers will diffuse into the liquid crystal, seriously contaminating the liquid crystal, resulting in yellowing and unevenness around the display panel, affecting the quality of the display panel

Method used

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  • Frame sealing adhesive, packaging method of display panel, and display panel
  • Frame sealing adhesive, packaging method of display panel, and display panel
  • Frame sealing adhesive, packaging method of display panel, and display panel

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Embodiment 1

[0047] A frame sealant, comprising a frame sealant matrix and a siloxane side chain type liquid crystal elastomer, the siloxane side chain type liquid crystal elastomer is composed of a polymethylhydrogen siloxane main chain, a liquid crystalline monomer and a cross-linked The linking agent is formed through hydrosilylation reaction, wherein the liquid crystal monomer is a cholesterol derivative, and the crosslinking agent is a binaphthyldiol derivative, that is, the crosslinking agent contains a binaphthyldiol group.

[0048] Among them, the liquid crystal monomer contains one double bond, and the crosslinking agent contains two double bonds. In the hydrosilylation reaction, the cross-linking agent p-alkenyloxybenzoic acid binaphthyl ester and the liquid crystal monomer p-alkenyloxybenzoic acid cholesteryl ester are grafted to the polymethylhydrogensiloxane main chain to form silicon Oxylkane side chain type liquid crystal elastomer. Among them, the number of Si-H bonds in t...

Embodiment 2

[0063] This embodiment provides a display panel and a packaging method for the display panel.

[0064] In this embodiment, the display panel includes a color filter substrate and an array substrate, and the color filter substrate and the array substrate are formed by encapsulating the frame sealant in the first embodiment.

[0065] Specifically, the packaging method of the display panel includes:

[0066] Step S1): The frame sealing glue matrix and the siloxane side chain type liquid crystal elastomer are uniformly mixed according to the mass ratio to form a mixture.

[0067] In this step, the siloxane side chain type liquid crystal elastomer is added to the frame sealant matrix according to the mass ratio, and stirred, so that the siloxane side chain type liquid crystal elastomer is evenly dispersed in the frame sealant matrix. Wherein, the mass fraction of the frame sealing glue matrix is ​​70-99.5%, and the mass fraction of the siloxane side chain type liquid crystal elast...

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Abstract

The invention belongs to the field of display technology, and in particular relates to a frame sealing glue, a packaging method of a display panel and a display panel. The frame sealant includes a frame sealant matrix, and also includes a siloxane side chain type liquid crystal elastomer. The linking agent is formed through a hydrosilylation reaction, wherein the liquid crystal monomer is a cholesterol derivative, and the crosslinking agent is a binaphthyl diol derivative. The frame sealant can effectively slow down or prevent liquid crystals from being polluted by small molecules in the frame sealant during the boxing process of the array substrate and the color filter substrate, reduce the impact force of the liquid crystal on the frame sealant, and improve the quality of the liquid crystal display panel.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a frame sealing glue, a packaging method of a display panel and a display panel. Background technique [0002] The liquid crystal display panel is made by vacuum-dropping the array substrate with liquid crystal and the color film substrate coated with sealant. This sealant is the frame sealant. At present, there are many kinds of frame sealants on the market, and the main components include UV polymerizable monomers, epoxy thermal polymerizable monomers, epoxy acrylic resins, photoinitiators, thermal curing agents, coupling agents, organic fillers, and inorganic fillers. , granular additives, etc. [0003] Generally, commonly used frame sealants are cross-linked through stepwise polymerization to achieve the bonding effect. Stepwise polymerization mainly includes ultraviolet polymerization and thermal polymerization. The first is ultraviolet polymerization, that is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J11/08G02F1/1339
Inventor 武晓娟谢建云车春城
Owner BOE TECH GRP CO LTD
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