Liquid crystal display device with control circuit

Details Liquid crystal display device with control circuit Liquid crystal display device with control circuit

1996-09-24

1999-05-18

Wu, Xiao

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 97, G09G3/36

Patent

active

059054840

ABSTRACT:
In liquid crystal display devices based on smectic LC material having a high polarization (Deformed Helix FLC, twisted FLC, monostable FLC, electroclinic smectic A LC and antiferroelectric LC), the memory effect in, for example, monitor or video applications is eliminated by presenting compensation voltages in matrix displays based on MIMs, TFTs or diodes, dependent on the data in a previous frame, so that the polarization within a cell always switches to the correct value.

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J.S. Patel: "Ferroelectric Liquid Crystal Modulator using Twisted Smectic Structure", Appl. Phys. Lett. vol. 60(3) pp. 280-282 (1992).
H. Okada et al: "New Display Mode of Ferroelectric Liquid Crystals with Large Tilt Angle", Ferroelectrics vol. 149, 171-181 (1993).
D.M. Walba et al: High Performance Electroclinic Materials, Ferroelectrics vol. 148, 435-442 (1993).

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