Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-03-29
2005-03-29
Wu, Xiao (Department: 2674)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S055000, C345S077000, C345S078000, C345S082000, C345S085000, C345S098000, C345S099000, C315S167000, C315S168000, C315S169100, C315S169200, C315S169300, C349S139000, C349S143000, C349S149000
Reexamination Certificate
active
06873313
ABSTRACT:
An image display device of this invention includes a pre-charging voltage stabilizing section having current controlling means and charge holding means which respectively include a resistor and a capacitor to stabilize a pre-charging voltage. The charge holding means holds a voltage to be supplied to data signal lines, and the current controlling means suppresses a current flow from a control signal generating circuit, thereby suppressing power fluctuation at the control signal generating circuit. This suppresses fluctuation in the pre-charging voltage and enables data signal lines to be charged to a predetermined voltage, thereby suppressing deterioration of image quality and an increase in power consumption of the image display device. Further, when using the pre-charging voltage stabilizing section and setting a portion of a display as a video data non-display area avoiding display of video data in a non-match image display mode to display at fixed brightness in the video data non-display area by a pre-charging voltage from a pre-charging circuit, a control signal is suspended in a fixed period, thus realizing a non-match image display mode to display a video image of an aspect ratio different from that of a screen of a display without impairing an image quality, and saving power.
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Kuwabara Nobuhiro
Washio Hajime
Yoneda Hiroshi
Yoshida Shigeto
Abdulselam Abbas
Conlin David G.
Daley, Jr. William J.
Edwards & Angell LLP
Sharp Kabushiki Kaisha
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