Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Patent
1995-12-26
1998-03-31
Tung, Kee M.
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
345 87, G09G 500
Patent
active
057343799
ABSTRACT:
The present invention discloses a liquid crystal display device capable of reducing charges to be supplied from a driving circuit, increasing response speed of liquid crystals and delivering superior display. A liquid crystal display device is provided with a switching circuit between scanning electrodes of a liquid crystal display panel 25 and a common driver. The switching circuit is provided with switching elements, and each switching element is disposed between two scanning electrodes adjacent to each other. Furthermore, each switching element is turned on and off by a control means. For a predetermined period after the completion of a horizontal scanning period, a scanning electrode, to which a selection potential has been applied during the horizontal scanning period, and a scanning electrode, to which the selection potential is to be applied next are isolated once from a power supply circuit, and then electrically connected to each other by turning on the switching element so as to have an identical potential. With this structure, power to be supplied from the common driver can be reduced.
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Azuma Masami
Fujita Kazutomo
Natsumi Masayuki
Nishimura Toshio
Luu Matthew
Sharp Kabushiki Kaisha
Tung Kee M.
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