Liquid crystal display device comprising a C-DAC and wherein...

Details Liquid crystal display device comprising a C-DAC and wherein... Liquid crystal display device comprising a C-DAC and wherein...

2006-02-28

2006-02-28

Schechter, Andrew (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S111000, C349S151000, C345S204000

Reexamination Certificate

active

07006176

ABSTRACT:
A liquid crystal display device comprises a poly-silicon TFT substrate having a condenser type digital analog converter, an another substrate disposed so as to face the poly-silicon TFT substrate, and liquid crystal positioned between the poly-silicon TFT substrate and the another substrate. In this liquid crystal device, a light blocking film is formed on a surface of the another substrate and contacts with the liquid crystal. The light blocking film has a resistance larger than n·τ/CLCwherein n is a number of bits of the condenser type digital analog converter, τ is an operation stabilizing time of a condenser per one bit, and CLCis electrostatic capacitance between the poly-silicon TFT substrate and the another substrate.

REFERENCES:
patent: 5854663 (1998-12-01), Oh et al.
patent: 6002463 (1999-12-01), Fujikawa
patent: 6034757 (2000-03-01), Yanagawa et al.
patent: 6372349 (2002-04-01), Hisashi et al.
patent: 6597415 (2003-07-01), Rho et al.

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