Polymer stable vertical alignment liquid crystal display panel and liquid crystal display

Abstract

The invention provides a polymer stable vertical alignment liquid crystal display panel which comprises a first substrate, a second substrate, a liquid crystal layer sandwiched between two substrates, and a rubber frame for sealing the liquid crystal in the two substrates. The liquid crystal layer is made of a negative-type liquid crystal material, a stabilizing agent, a reactive monomer producing polymerization reaction under ultraviolet-irradiation. The rubber frame comprises epoxy resin, a hardener, methyl acrylic ester resin or acrylic ester resin, a photoinitiators, a filler and a silane coupling agent. The invention also provides a liquid crystal display. By the embodiment, the dissolution of the methyl acrylic ester resin or the acrylic ester resin in the rubber frame by a liquid crystal medium is prevented, so that oversize bump particles are prevented from being generated near the frame, the light leak at positions near the frame is reduced, and the product yield is increased.

Description

technical field [0001] The invention relates to liquid crystal display technology, in particular to a polymer stabilized vertical alignment liquid crystal display panel and a liquid crystal display. Background technique [0002] The liquid crystals used in TN (Twisted nematic) or STN (Super twisted nematic) liquid crystal displays are positive liquid crystals, and the long axis of liquid crystal molecules is parallel to the surface of the substrate when no power is applied. The alignment direction of liquid crystal molecules on the substrate surface is determined by the rubbing direction of the alignment layer (Alignment layer, usually made of Polyimide). The alignment directions of the two substrate surfaces are vertical, so from one substrate surface to the other substrate surface, the molecules of the liquid crystal layer In a continuous twisted arrangement. When a voltage is applied, the long axes of the liquid crystal molecules tend to align along the direction of the ...

AI Technical Summary

Problems solved by technology

[0006] Since the methacrylate monomer in the frame glue has a very similar structure to the polymerizable monomer monomer in the liquid crystal, part of the methacrylate monomer in the frame glue may be dissolved by the liquid crystal during the panel manufacturing process. Participating in the polymerization reaction under ultraviolet light irradiation, it is easy to form large bumps around the panel near the frame adhesive, resulting in bright spots visible in the dark state, causing light leakage around the PSVA panel

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