Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1995-09-19
1998-07-28
Luu, Matthew
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345100, G09G 336
Patent
active
057867992
ABSTRACT:
A driving method for a liquid crystal display is provided with the steps of (a) applying a row select voltage to each of the row electrodes simultaneously, the row select voltage corresponding to an element of an orthogonal matrix and being either +1 or -1 ; (b) conducting an exclusive-or operation with respect to each element of a row select vector and a display vector, the row select vector indicating the row select voltages by vector notation and the display vector indicating a display data by the vector notation, and conducting a summation of each exclusive-or operation; (c) applying to the column electrode a voltage of a level which varies depending on the summation so as to simultaneously drive the plurality of rows; and (d) in a case where all the display data correspond to ON display or OFF display in the step (c), assigning the row select voltage, applied to either the selected row electrode having the lowest select voltage among driving voltages within one frame period for the ON display or the selected row electrode having the highest select voltage among the driving voltages within one frame period for the OFF display, to a virtual row electrode outside a display area, and applying a virtual display data to the virtual row electrode.
REFERENCES:
patent: 4412214 (1983-10-01), Tanaka et al.
patent: 5420603 (1995-05-01), Tsuboyama et al.
patent: 5621425 (1997-04-01), Hoshino et al.
patent: 5627557 (1997-05-01), Tsuboyama et al.
T. Scheffer et al. "Active Addressing Method for High-Contrast Video-Rate STN Displays", SID 92 Digest, pp. 228-231.
T. Ruckmongathan et al. "A New Addressing Technique for Fast Responding STN LCDs", Japan Display, 1992, pp. 65-67.
S. Ihara et al. "A Color STN-LCD with Improved Contrast, Uniformity,and Response Times" SID 92 Digest, pp. 232-235.
Asada Hiromasa
Matsui Kiyohisa
Ohba Toshihiro
Taniguchi Koki
Yasunishi Norio
Conlin David G.
Luu Matthew
Michaelis Brian L.
Sharp Kabushiki Kaisha
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