Horizontal driver circuit with fixed pattern eliminating functio

Details Horizontal driver circuit with fixed pattern eliminating functio Horizontal driver circuit with fixed pattern eliminating functio

1994-08-30

1998-10-06

Wu, Xiao

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 98, G09G 336

Patent

active

058184120

ABSTRACT:
A horizontal driver circuit comprising a shift register for generating horizontal sampling pulses sequentially; and a fixed pattern eliminating circuit, associated with the shift register, for providing a non-overlap time of the horizontal sampling pulses between an Nth stage and an Mth stage posterior thereto. The Mth stage horizontal sampling pulse has a rise whose phase is the same as that of a fall of the Nth stage horizontal sampling pulse. The fixed pattern eliminating circuit comprises means for controlling the rise of the horizontal sampling pulse of the Mth stage by the fall of the horizontal sampling pulse of the Nth stage. The horizontal driver circuit is applicable to a two-dimensional addressing device and a liquid crystal display device to eliminate a fault of vertical streaks on a displayed image.

REFERENCES:
patent: 4545649 (1985-10-01), Gharadjedaghi
patent: 4724433 (1988-02-01), Inoue
patent: 4746915 (1988-05-01), Sekiya
patent: 4873516 (1989-10-01), Castleberry
Archer, "Semiconductor Replacement Guide". 1980 p. 30.
Shimizu, et al. "A 6.7 Inch Square High Resolution Full Color TFT-LCD" Japan Display '89. pp. 514-517.

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