Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1996-07-16
1999-01-05
Mengistu, Amare
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 89, G09G 336
Patent
active
058568158
ABSTRACT:
A method for driving a surface-stabilized ferroelectric liquid crystal display element uses a selection voltage, a half-selection voltage, and a non-selection voltage. A relative ratio between the selection voltage, half-selection voltage, and non-selection voltage of a drive signal is changed, or absolute levels of the selection voltage, half-selection voltage, and non-selection voltage are changed. Consequently, a plurality of gradations of the surface-stabilized ferroelectric liquid crystal display element can be obtained.
REFERENCES:
patent: 4747671 (1988-05-01), Takahashi et al.
patent: 4921334 (1990-05-01), Akodes
patent: 4925277 (1990-05-01), Inaba
patent: 5061044 (1991-10-01), Matsunaga
patent: 5066945 (1991-11-01), Kanno et al.
patent: 5289175 (1994-02-01), Kawagishi
patent: 5650869 (1997-07-01), Kojima et al.
Clark et al., "Submicrosecond bistable electro-optic switching in liquid crystals," Appl. Phys. Lett 36(11), 1 Jun. 1980.
Handschy et al., "Stroboscopic microscopy of fast electro-optic switching in ferroelectric smectic C liquid crystals", Appl. Phys. Lett. 41(1), 1 Jul. 1982.
Hartmann et al., "A Passive-Matrix-Addressed Ferroelectric Liquid-Crystal Video Display," Proceedings of the SID, vol. 32/2, 1991, pp.115-120.
Yabe et al., "A 5-Mpixel Overhead Projection Display Utilizing a Nematic Cholesteric Phase-Transition Liquid Crystal," SID 91 Digest, pp. 261-264.
Wakita et al., "Gray Scales on Ferroelectric Liquid Crystals by Weighted Subfield," National Technical Report, vol. 38, No. 3, Jun. 1992, pp. 45-49 .
Kasahara Shigeo
Mochizuki Akihiro
Motoyoshi Katsusada
Fujitsu Limited
Mengistu Amare
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