Multiple-domain liquid crystal display

A liquid crystal display, liquid crystal layer technology, applied in static indicators, instruments, transistors, etc., can solve problems such as reducing the overall light transmittance, discontinuous misalignment defects, and insufficient liquid crystal molecules 208
CN100498442CInactive Publication Date: 2009-06-10WINTEK CORP
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
WINTEK CORP
Publication Date
2009-06-10
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A multi-domain liquid crystal display device comprises a colorful filter baseboard, an active element array baseboard, and a liquid crystal layer between, wherein the colorful filter baseboard is provided with a first share electrode, the active element array baseboard is arranged with a second share electrode and a pixel electrode, while the second share electrode surrounds and cooperates with the pixel electrode to generate an edge electric field. The invention can overcome the defects of prior technique, while each liquid crystal molecule is vertically directed without voltage (Voff), to avoid abundant optical path difference (delta nd=0), and avoid light leakage, and compared with prior method that forming slim at electrode, the invention uses the edge electric field generated by the voltage difference between the second share electrode and the pixel electrode, to provide a strong liquid crystal molecule flip force, to reduce the formation of bias defect area to improve the light penetrate rate.
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Description

technical field

[0001] The invention relates to a multi-domain liquid crystal display, in particular to a multi-domain liquid crystal display which utilizes a fringe field effect to obtain a wide viewing angle effect. Background technique

[0002] It is known that a negative type liquid crystal material with a negative dielectric anisotropy is used to form a liquid crystal alignment method of vertical alignment or homeotropic alignment. When no voltage is applied, the liquid crystal molecules are aligned vertically. Arranged in the form of substrates, it can provide good contrast (contrast) performance. However, a vertically aligned LCD usually has poor viewing angle characteristics in gray level display states at different viewing angles. Therefore, different known designs have been proposed to improve the above situation.

[0003] FIG. 1A is a schematic cross-sectional view showing the design of a conventional multi-domain vertically aligned LCD (multi-domain vertically ...

Claims

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