Liquid crystal display having apertures in both electrodes

Details Liquid crystal display having apertures in both electrodes Liquid crystal display having apertures in both electrodes

1991-10-29

1993-07-20

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 87, G02F 11343

Patent

active

052298736

ABSTRACT:
Disclosed is a liquid crystal display comprising a liquid crystal layer, a pair of substrates holding the liquid crystal layer therebetween and having two sets of crossed electrodes formed thereon, a pair of crossed polarizers provided outside the substrates and having polarization axes parallel to the electrodes respectively, and an orientation means for making the liquid crystal molecules orient to the intermediate direction of the crossed polarizers at the commencement of voltage application. The orientation means is selected form pretilt, fringe electric field, combinations thereof, etc. In the beginning of voltage application, no leakage light is generated even if the liquid crystal molecules are tilted by a fringe electric field in the vicinity of the edges of the electrodes.

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"Electro-Optical Limits of the Electrically Controlled Birefringence Effect in Nematic Liquid Crystals" F. Clerc, Displays, vol. 2, No. 7, Oct. 1981, pp. 341-347.
"Homeotropic-Alignment Full-Color LCD" S. Yamauchi et al., SID International Symposium, Digest of Technical Papers, vol. 20, 1989, pp. 378-381.
Patent Abstracts of Japan, vol. 12, No. 194 (P-713) (3041) 7 Jun. 1988 and JP-A-62 299 944 (Sharp) 26 Dec. 1987.

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