Method of driving STN liquid crystal panel and apparatus therefo

Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix

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345 87, 345100, 345103, G09G 336

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active

059779438

ABSTRACT:
A liquid crystal (LC) display apparatus using an active matrix driving method includes an LC panel having electrodes of N rows by M columns (where N.gtoreq.2, M .gtoreq.2). Intersections of row electrodes and column electrodes form display dots. A column data generation circuit generates, for each row, column data to be supplied to the LC panel, on the basis of display data representing whether each dot should be turned on or not and values of an orthogonal function having values of -1 or 1. A column electrode driver drives column electrodes of the LC panel on the basis of generated column data. A row data generation circuit generates row data for each column on the basis of a part of values of the orthogonal function. A row electrode driver drives row electrodes of the LC panel on the basis of row data.

REFERENCES:
patent: 4504829 (1985-03-01), Usui
patent: 4985698 (1991-01-01), Mano et al.
patent: 5053764 (1991-10-01), Barbier et al.
patent: 5220314 (1993-06-01), Mano et al.
patent: 5485173 (1996-01-01), Scheffer et al.
patent: 5583530 (1996-12-01), Mano et al.
J. Nehring et al., "Ultimate Limits for Matrix Addressing of RMS-Responding Liquid-Crystal Displays", IEEE Transactions on Electron Devices, vol. ED-26, No. 5, May 1979, pp. 795-802.
T. Ruckmongathan et al., "New Addressing Techniques for Multiplexed Liquid Crystal Displays", Proceedings of the SID, vol. 24/3, 1983, pp. 259-262.
T. Ruckmongathan, "A Generalized Addressing Techniques for RMS Responding Matrix LCDs", 1988 International Display Research Conference, IEEE, 1988, pp. 80-85.
T. Scheffer et al., "Active Addressing Method for High-Contrast Video-Rate STN Displays", SID 92 Digest, 1992, pp. 228-231.
S. Ihara et al., "A Color STN-LCD with Improved Contrast, Uniformity, and Response Times", SID 92 Digest, 1992, pp. 232-235.
T. Ruckmongathan et al., "A New Addressing Technique for Fast Responding STN LCDs", Japan Display '92, 1992, pp. 65-68.
B. Clifton et al., "Hardware Architectures for Video-Rate, Active Addressed STN Displays", Japan Display '92, 1992, pp. 503-506.
U.S. patent application Serial No. 08/003,448 filed on Jan. 12, 1993.

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