Continuous domain in-plane switching liquid crystal display

Details Continuous domain in-plane switching liquid crystal display Continuous domain in-plane switching liquid crystal display

2005-03-21

2008-08-19

Nelms, David C. (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

Reexamination Certificate

active

07414689

ABSTRACT:
An IPS liquid crystal display (200) of a preferred embodiment of the present invention includes a first substrate (201), a second substrate (202), and liquid crystal molecules interposed therebetween. A plurality of gate lines (211) and data lines (212) are formed at the first substrate, thereby defining a plurality of pixel regions. A pixel electrode (233), a common electrode (243) and a TFT (220) are provided in each pixel region, the pixel electrode and the common electrode having a same curved shape. Because the pixel and common electrodes of have a same curved shape with smooth bends, when a voltage is applied, disclination of the liquid crystal molecules does not occur, and the contrast ratio of the IPS LCD is unimpaired. Furthermore, the electric field generated by them is a smooth continuum of multiple domains, and the IPS LCD provides equally fine visual performance at various different viewing angles.

REFERENCES:
patent: 6459465 (2002-10-01), Lee
patent: 2004/0207792 (2004-10-01), Wu
patent: 2005/0105033 (2005-05-01), Itou et al.
patent: 2005/0140899 (2005-06-01), Ko
patent: 2005/0212999 (2005-09-01), Yang et al.

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