Active matrix liquid crystal display device with plural black ma

Details Active matrix liquid crystal display device with plural black ma Active matrix liquid crystal display device with plural black ma

1999-05-24

2000-09-26

Dudek, James A.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349111, G02F 11333

Patent

active

061249106

ABSTRACT:
An active matrix-type liquid crystal display device driven by a transverse electric field is provided which is capable of providing a superior image quality without showing after images or uneven images by maintaining the potential of the black matrix at an optimum value, while maintaining the black matrix in a floating state; the active matrix-type liquid crystal display device being constructed by a pair of transparent insulating substrates, and on the TFT substrate, a plurality of scanning lines and a plurality of signal lines, thin film transistors formed near the crossover points of the scanning and signal lines, pixel electrodes connected to the TFTs, and counter electrodes formed facing to the pixel electrodes are formed with a transverse electric field being generated by applying a voltage between the pixel electrodes and the counter electrodes, and a slit with a predetermined size being formed in the black matrix formed on the other CF substrate.

REFERENCES:
patent: 5781261 (1998-07-01), Ohta et al.
patent: 5786876 (1998-07-01), Ota et al.
patent: 5831701 (1998-11-01), Matsuyama et al.

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