Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1996-07-10
1998-05-19
Mengistu, Amare
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345507, G09G 336
Patent
active
057541574
ABSTRACT:
A method of forming column signals for driving a liquid crystal display apparatus having a plurality of row electrodes and a plurality of column electrodes wherein a plurality of the row electrodes are selected as a batch; the column electrodes are applied with voltages based on orthogonal transformation signals which are obtained by transforming picture signals corresponding to the positions of the simultaneously selected row electrodes on a panel by an orthogonal function, and the row electrodes are applied with the voltages based on the orthogonal transformation signals; the formation of column signals from the picture signals corresponding to the positions of the simultaneously selected row electrodes on the panel includes a serial-parallel transforming step of transforming inputted picture signals into those having a predetermined bit length, a writing/reading step of reading the picture signals having a predetermined bit length after the picture signals have once been written in a memory; and an operating step of transforming by the orthogonal function the picture signals readout from the memory into the orthogonal transformation signals, wherein a random access mode is used for writing the picture signals in the writing/reading step, and data on the row electrodes corresponding to the same column electrodes are stored in an L number of adjoining addresses with respect to an L number of simultaneously selected row electrodes.
REFERENCES:
patent: 4755971 (1988-07-01), Jasmer et al.
patent: 4811245 (1989-03-01), Bunker et al.
patent: 4866520 (1989-09-01), Nomura et al.
patent: 5091723 (1992-02-01), Kanno et al.
patent: 5420604 (1995-05-01), Scheffer et al.
patent: 5475397 (1995-12-01), Saidi
patent: 5481651 (1996-01-01), Herold
T.J. Scheffer, et al, "Active Addressing Method for High-Contrast Video-Rate STN Display," SID 92 Digest, pp. 228-231.
B. Clifton, et al, "Hardware Architectures for Video-Rate, Active Addressed STN Display," Japan Display '92, pp. 503-506.
"Some New Addressing Techniques for RMS Responding Matrix LCD's" by T.N. Ruckmongathan. Thesis Submitted for the Degree of Doctor of Philosophy, Dept. of Electrical Communication Engineering Indian Institute of Science, Feb. 1988.
"New Addressing Techniques for Multiplexed Liquid Crystal Displays", by T.N. Ruckmongathan and N.V. Madhusudana, Proceedings of the SID, V. 24/3, 1983.
1988 Int'l Display Research Conference, "A Generalized Addressing Technique for RMS Responding Matrix LCDS", by T.N. Ruckmongathan, p. 80-85.
Asari Goro
Ito Masami
Kuwata Takeshi
Ohbiki Toru
Ohnishi Takanori
Asahi Glass Company Ltd.
Mengistu Amare
LandOfFree
Method for forming column signals for a liquid crystal display a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for forming column signals for a liquid crystal display a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for forming column signals for a liquid crystal display a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1856923