Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1994-12-23
1997-11-25
Hjerpe, Richard
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 94, 345209, G09G 320
Patent
active
056917392
ABSTRACT:
A driving device, which drives a display section that consists of a plurality of liquid crystal display elements that are connected to signal lines and scanning lines and that are disposed in the form of matrix, includes a scanning-line driver, a signal-line driver, and a compensating device. The scanning-line driver is for releasing to the scanning lines a scanning signal for selecting the scanning lines successively. The signal-line drive is for releasing to the signal lines a display signal for displaying images in synchronism with the scanning signal. Finally, the compensating device which, during a compensating period that follows a display period during which display signals corresponding to one picture are transmitted to the signal lines, applies to each liquid crystal display element a compensating voltage or compensating pulses that is capable of cancelling a lowering in an effective value of a driving voltage for the liquid crystal display elements during the display period. With this arrangement, since the lowering of the effective value of the driving voltage is cancelled, it becomes possible to display liquid crystal images in high quality.
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Kawamori Hidetsugu
Takahashi Nobuaki
Bell Paul A.
Hjerpe Richard
Sharp Kabushiki Kaisha
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