Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1995-04-20
1998-09-08
Nguyen, Chanh
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345103, G09G 336
Patent
active
058051309
ABSTRACT:
In a liquid crystal display device having a simple matrix liquid crystal display panel including a plurality of scanning electrodes disposed in parallel with each other and a plurality of data electrodes disposed in parallel with each other so as to cross the scanning electrodes, the scanning electrodes are divided into a predetermined number of sub-groups, and each sub-group is successively driven by utilizing an orthogonal function. For a selection, a signal having an electric potential of .+-.Vr, which is a selection pulse string according to the orthogonal function, is applied to the respective scanning electrodes as a scanning electrode driving signal. For a non-selection, a signal having an electric potential of 0 is applied to the respective scanning electrodes as the scanning electrode driving signal. On the other hand, a data electrode driving signal having an electric potential proportional to a sum of products of a display pattern and the scanning electrode driving signal is applied to the respective data electrodes. A bias value "A", which is a proportional constant therefor, is set in a predetermined range. Thus, a uniform display with a high contrast enabling a fast response can be realized while suppressing a frame response phenomenon and display inconsistencies.
REFERENCES:
patent: 4929058 (1990-05-01), Numao
patent: 5376944 (1994-12-01), Mogi et al.
patent: 5420604 (1995-05-01), Scheffer et al.
patent: 5457551 (1995-10-01), Cultar et al.
patent: 5459495 (1995-10-01), Scheffer et al.
patent: 5485173 (1996-01-01), Scheffer et al.
patent: 5489919 (1996-02-01), Kuwata et al.
patent: 5521727 (1996-05-01), Inaba et al.
"A New Addressing Technique for Fast Responding STN LCDS", by T.N. Ruckmongathan et al, Japan Display '92--Proceddings of the 12th Int'l Display Research Conference, pp. 65-68.
"Ultimate Limits for Matrix Addressing of RMS-Responding Liquid-Crystal Displays", by J. Nehring et al, IEEE Transactions on Electron Devices, vol. ED-26, No. 5, pp. 795-802, 1979.
"A Generalized Addressing Technique for RMS Responding Matrix LCDS", by T.N. Ruckmongathan, 1988 International Display Research Conference, pp. 80-85.
"Active Addressing Method for High-Contrast Video-Rate STN Displays", by T.J. Scheffer et al, SID 92 Digest--Society for Infromation Display Int'l Symposium Digest of Technical Papers vol. XXIII, May 17-22, pp. 228-231.
Furukawa Hiroyuki
Ishii Yutaka
Takahashi Shinya
Yamamoto Kunihiko
Yamane Yasukuni
Nguyen Chanh
Sharp Kabushiki Kaisha
LandOfFree
Liquid crystal display device and method for driving the same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid crystal display device and method for driving the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystal display device and method for driving the same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1286345