Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2006-12-26
2006-12-26
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S094000, C345S100000
Reexamination Certificate
active
07154489
ABSTRACT:
A modulation clock supplied to a drive circuit (7) of a display panel (1) is frequency-modulated so as to spread its harmonics spectrum. The frequency deviation is so restricted that, if at least two pixels corresponding to two adjacent scanning wirings are displayed based on arbitrary same luminance data, a difference in display luminance in a specified period between one pixel and the other pixel is less than or equal to a tolerable value determined by the luminance data. Consequently, reduction in unnecessary radiation can be achieved at a lower cost while suppressing deterioration in image quality
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Abe Naoto
Sagano Osamu
Canon Kabushiki Kaisha
Fitzpatrick, Cella, Harper and Scinto
Hjerpe Richard
Said Mansour M.
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