Flicker-free liquid crystal display driver system

Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...

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340793, 340811, G09G 336

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050418238

ABSTRACT:
A flicker-free liquid crystal display driver system driving two groups of pixels with alternating polarities. The spatial differentiation of the two groups, which may be accomplished in terms of even and odd rows or columns, is small so as to diminish detection by a human eye of the flicker in the display. The driver system incorporates a level shifter, switches, drivers, a driver switch control, a holding means and a storage means. Input signals to the system include that of intensity data, a clock and frames. The configuration of the driver system may be of a single-edge or redundant drive. The system may be digital or analog.

REFERENCES:
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patent: 4635127 (1987-01-01), Togashi
patent: 4825203 (1989-04-01), Takeda et al.
"A New Driving Technique for Flicker-Free Full Resolution LC-TV" by T. Katagishi et al., SID 86 Digest, Article 16.3, pp. 285-288.
"Full Liquid Crystal Television Addressed by Amorphous Silicon TFTS", by M. Yamano et al., Journal of Non-Crystalline Solids (77 & 78) 1985, pp. 1383-1388.
"5-Inch Size Full Color Liquid Crystal Television", by M. Yamano et al., IEEE Transactions on Consumer Electronics, vol. CE-31, No. 1, Feb., pp. 39-46.
"4.25-Inch and 1.51-Inch B/W and Full-Color LC Video Displays", by S. Morozumi et al., SID 84 Digest, Article 18.4, pp. 316-319.
"Imaging System Design Based on Psychophysical Data", by W. E. Glenn et al., SID 84 Digest, Article 17.5, pp. 294-297.
IBM Technical Disclosure Bulletin, "New Driving Method for Liquid Crystal Display", vol. 30, No. 12, May 1988.
"Display Driver ICs Light the Way for Flat-Panel Displays" by Gene Heftman, Mar. 13, 1986, pp. 29-34, Eelctronic Design.

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