Passive driving LCD

Abstract

The invention relates to a passive driving liquid crystal display device. A stroke segment region or a pixel region comprises an upper transparent substrate, a lower transparent substrate and a negative liquid crystal layer; the inner side of the upper transparent substrate is provided with an upper electrode; the inner side of the upper electrode is provided with an upper vertical orientation layer; the inner side of the lower transparent substrate is provided with a lower electrode; the inner side of the lower electrode is provided with a lower vertical orientation layer; and the negative liquid crystal layer is arranged between the upper vertical orientation layer and the lower vertical orientation layer. The passive driving liquid crystal display device is characterized in that in thestroke segment region or the pixel region, the upper electrode or the lower electrode is provided with a plurality of strip grooves and at least one domain forming region; each domain forming region consists of at least three strip grooves and a polygonal region enclosed by the extending lines of the strip grooves; and electric conduction is kept between the domain forming regions. The passive driving liquid crystal display device can realize polydomain display without visual angle blind region, has the advantages of high contrast ratio and wide visual angle and has a simple structure, a simple manufacturing process, low manufacturing cost and high manufacturing yield.

Description

technical field [0001] The invention relates to a liquid crystal display, in particular to a passively driven vertical alignment mode liquid crystal display capable of realizing multi-domain display. Background technique [0002] Among liquid crystal displays, a vertically aligned (VA) mode liquid crystal display includes an upper transparent substrate, a lower transparent substrate and a negative liquid crystal layer; an upper transparent electrode is provided on the inner surface of the upper transparent substrate, and an upper transparent electrode is arranged on the inner surface of the upper transparent electrode. The upper vertical alignment layer for vertically aligning the liquid crystal molecules in the negative liquid crystal layer; the inner side of the lower transparent substrate is provided with a lower transparent electrode, and the inner side of the lower transparent electrode is provided with a vertical alignment layer for the liquid crystal molecules in the n...

AI Technical Summary

Problems solved by technology

At present, there are passively driven VA-mode liquid crystal displays (including dot-matrix and pen segment-type VA-mode liquid crystal displays), which are oriented by friction and can achieve high contrast, but this directional method cannot achieve multi-domain display, so that its There is a blind spot in the viewing angle

In addition, the process of friction orientation may also lead to the introduction of dust and other foreign matter, the occurrence of static electricity and friction damage, which will reduce the production yield

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