1978-10-13
1981-05-12
Bauer, Edward S.
350339D, 350347R, 350349, G02F 1133
Patent
active
042668590
ABSTRACT:
A liquid crystal display cell of reflective dichroic type, having improved contrast over a wide range of viewing angles by comparison with previous cells of this type, due to the overall distance between the reflecting surface and the liquid crystal layer being reduced by incorporation of a reflection layer and light diffusion surface which are integral with a rear substrate of the cell, in which the rear substrate is composed of phase retarding means.
REFERENCES:
patent: 3612654 (1971-10-01), Klein et al.
patent: 3736047 (1973-05-01), Gelber et al.
patent: 3881809 (1975-05-01), Ferguson et al.
patent: 3900248 (1975-08-01), Nagasaki
patent: 3960438 (1976-06-01), Bonne
patent: 3984176 (1976-10-01), Hirai et al.
patent: 4026637 (1977-05-01), Yamazaki
patent: 4093356 (1978-06-01), Bigelow
patent: 4116544 (1978-09-01), Soief
Bauer Edward S.
Citizen Watch Co. Ltd.
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