In-plane switching liquid crystal display with wavy...

Details In-plane switching liquid crystal display with wavy... In-plane switching liquid crystal display with wavy...

2008-01-15

2008-01-15

Schechter, Andrew (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

Reexamination Certificate

active

11131031

ABSTRACT:
A multi-domain IPS (in-plane switching) liquid crystal display (20) includes a first substrate (201), a second substrate (202), liquid crystal molecules (203) filled between the first and second substrates, and gate lines (211) and data lines (212) formed on the first substrate. The gate lines and data lines define pixel regions arranged in a matrix. Each pixel region includes pixel electrodes (233), common electrodes (243), and a TFT (thin film transistor) (220). The pixel electrodes and the common electrodes have a same curved shape with at least two different bend portions, and are uniformly spaced apart from each other. Therefore the electric field generated by them is a smooth continuum of multiple domains, and the visual performance at various different viewing angles is equally good. Because the pixel and common electrodes do not have sharp bends, disclination is avoided. Therefore the IPS liquid crystal display has a high contrast ratio.

REFERENCES:
patent: 6621102 (2003-09-01), Hirakata et al.
patent: 2003/0123012 (2003-07-01), Yanagawa et al.
patent: 2005/0128403 (2005-06-01), Liu

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