Liquid crystal display cell

Details Liquid crystal display cell Liquid crystal display cell

1989-06-14

1990-01-30

Miller, Stanley D.

350341, 350346, G02F 113

Patent

active

048969478

ABSTRACT:
A liquid crystal display (LCD) cell comprising a twist 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. The absolute value of the twist angle .phi. can be between 10.degree. and 80.degree., the angle .psi. between the polarizers can be between 80.degree. and 110.degree. and the angle .theta. between the surface orientation direction and the polarization direction on the screen on the light incidence side can be between -10.degree. and 60.degree., preferably so that the polarizers are symmetrical of the nematic directors.

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Patent Abstract of Japan, Band 10, Nr. 111 (P-451) 2168, 4/25/86 and JP-A 50 243 634 (Suwa Seikosha K.K.).
Appl. Phys. Let. 50(21) 1468 (1987).

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