Liquid crystal display apparatus, image signal correction...

Details Liquid crystal display apparatus, image signal correction... Liquid crystal display apparatus, image signal correction...

2005-08-16

2005-08-16

Eisen, Alexander (Department: 2674)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S098000, C345S213000, C345S690000

Reexamination Certificate

active

06930662

ABSTRACT:
A subtractor obtains a difference between an image signal, which is supplied in accordance with horizontal scanning and vertical scanning, and which carries information corresponding to a gray level of a pixel and a reference signal Ref representing a predetermined gray level. The result is integrated by an integrator on a horizontal scanning basis, multiplied with an appropriate coefficient, generating a correction signal Igr, which simulates the voltage variation of an opposing electrode, a capacitor line, etc. The correction signal Igr is added to the original image signal VID, and a corrected image signal VID′ is supplied to a liquid crystal panel. Thus, a voltage to which the voltage variation of the opposing electrode is added is applied to a pixel electrode, canceling the voltage variation of the opposing electrode, preventing degradation of the display quality due to horizontal crosstalk.

REFERENCES:
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patent: 6661400 (2003-12-01), Sakashita
patent: 11-119743 (1999-04-01), None

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