Liquid crystal display

Details Liquid crystal display Liquid crystal display

1990-01-18

1991-04-02

Miller, Stanley D.

350346, 350337, 350341, G02F 113

Patent

active

050043242

ABSTRACT:
A liquid crystal display (LCD) cell comprising a highly twisted nematic liquid crystal disposed between two electrode plates and polarizers and having a positive dielectric anisotropy. The optical path difference .DELTA.n.d is 0.2 to 0.7 .mu.m and the ratio d/p of thickness to pitch is 0.2 to 0.6. The absolute value of the twist angle .phi. can be between 120.degree. and 260.degree. for a right-hand twist or left-hand twist, the angle .psi. between the polarizers can be between 0.degree. and 180.degree. and the angle .beta. between the surface orientation direction and the polarization direction on the screen on the light incidence side can be between 0.degree. and 360.degree..

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Schadt et al., "Electro-Optical Performance of a New, Black-White and High Multiplexable Liquid Crystal Display", Appl. Phys. Lett., vol. 50, No. 2, Feb. 1987.

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