Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1996-04-26
1999-01-19
Brier, Jeffery
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
G09G 336
Patent
active
058618635
ABSTRACT:
A scanning voltage driving device suitable for a liquid crystal panel with plural output terminals, the scanning voltage driving device producing a 2-level selection voltage to plural scanning electrode groups which drive the liquid crystal panel according to a value of an orthogonal function data, the 2-level selection voltage having a positive polarity and a negative polarity with respect to a center point being a non-selection voltage, includes orthogonal function producing means for producing the orthogonal function data from input synchronous display signal groups, scanning line selecting means for creating a scanning line selection signal from the synchronous display signal groups to indicate an output terminal for the selection voltage, and voltage selecting means for selectively outputting a voltage amount the 2 levels of the selection voltages and the non-selection voltage every output terminal according to the value of the scanning line selection signal and the value of the orthogonal function data, the scanning line selecting means dividing one frame period into plural virtual block periods and then repeatedly creating the scanning line selection signal which sequentially selects all the scanning electrodes to be selected for the block period every plural scanning electrodes.
REFERENCES:
patent: 5250937 (1993-10-01), Kikuo et al.
patent: 5420604 (1995-05-01), Scheffer et al.
patent: 5459495 (1995-10-01), Scheffer et al.
patent: 5485173 (1996-01-01), Scheffer et al.
patent: 5640174 (1997-06-01), Kamei et al.
patent: 5644329 (1997-07-01), Asari et al.
patent: 5684502 (1997-11-01), Fukui et al.
patent: 5689280 (1997-11-01), Asari et al.
T. Ruckmongathan, "A Generalized Addressing Technique for RMS Responding Matrix LCDs", 1988 International Display Research Conference, pp. 80-85, IEEE, 1988.
Liquid Crystal Device Handbook, pp. 395-399 and 404-405, Nikkan Kogyo Shinbun Co., Sep. 29, 1989 (in Japanese).
T. Scheffer et al., "Active Addressing Method for High-Contrast Video-Rate STN Displays", SID 92 Digest, pp. 228-231, 1992.
B. Clifton et al., "Optimum Row Functions and Algorithms for Active Addressing", SID 93 Digest, pp. 89-92, 1993.
Furuhashi Tsutomu
Futami Toshio
Inuzuka Tatsuhiro
Kudo Yasuyuki
Mano Hiroyuki
Brier Jeffery
Hitachi , Ltd.
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