Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-03-08
2005-03-08
Nguyen, Chanh (Department: 2675)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S087000
Reexamination Certificate
active
06864866
ABSTRACT:
A liquid crystal display device of the present invention includes a subtracter that calculates the difference between an image signal and a reference signal. The image signal has information corresponding to the density of a pixel arranged in a matrix extending in row and column directions and being supplied in synchronization with horizontal scanning in the row direction and vertical scanning in the column direction. The reference signal has information corresponding to a reference density. The liquid crystal display device also includes a first accumulator group and a second accumulator group that accumulate the difference for each column for one vertical scanning period; and an adder that adds a value corresponding to an accumulated value associated with a column to the image signal, DV, of the column for correction. With this arrangement, the deterioration of display quality caused by vertical cross-talk is reduced, minimized or resolved by correcting the image signal.
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Nguyen Chanh
Oliff & Berridg,e PLC
Seiko Epson Corporation
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