Active-matrix liquid crystal display

Details Active-matrix liquid crystal display Active-matrix liquid crystal display

1998-11-17

2000-10-24

Wu, Shean C.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

25229963, 25229967, 349 42, 349129, G02F 11343, C09K 1930

Patent

active

061375586

ABSTRACT:
On a TFT substrate, a TFT using a low-temperature poly silicon thin film as an active layer is formed and a plurality of pixel electrodes are formed over the TFT and its electrode wiring, with an interlayer insulating layer between. In a common electrode formed on an opposite substrate opposite the TFT substrate with a liquid crystal layer between, an alignment controlling window for the liquid crystal is formed at a predetermined position opposite each of the pixel electrodes. A wide viewing angle is achieved by dividing an alignment area of liquid crystal molecules in one pixel area. The liquid crystal layer is vertically aligned and can be operated at a low driving voltage obtained by a poly silicon TFT by including fluorine liquid crystal molecules having negative dielectric anisotropy and fluorine side chains in the liquid crystal.

REFERENCES:
patent: 5471330 (1995-11-01), Sarma et al.
patent: 5514879 (1996-05-01), Yamazaki et al.
patent: 5557534 (1996-09-01), Wu
patent: 5576860 (1996-11-01), Nakamura et al.
patent: 5600155 (1997-02-01), Wu
patent: 5905548 (1999-05-01), Shimada

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