Display cell

Details Display cell Display cell

1988-11-14

1990-05-08

Miller, Stanley D.

350341, 350346, 350347E, G02F 113

Patent

active

049232860

ABSTRACT:
The described cell comprises a mixture of liquid crystals (26), polarizers (28, 30) and alignment layers (22,24). The liquid crystals mixture includes a chiralic compound which induces a helical structure having a pitch greater than or equal to the thickness of the liquid crystal layer. One alignment layer (24) induces a planar alignment, the other (22) induces a hemeotropic alignment. This cell, of low cost, requires low control voltage and provides a very good contrast and a high multiplexing rate. It may be used to advantage in the manufacture of dots matrix display watches.

REFERENCES:
patent: 3756694 (1973-09-01), Soree et al.
patent: 3814501 (1974-06-01), Schindler
patent: 3837729 (1974-09-01), Harsch
patent: 3878537 (1975-04-01), Roncillat et al.
patent: 3912369 (1975-10-01), Kashnow
patent: 4042294 (1977-08-01), Billings et al.
patent: 4114990 (1978-09-01), Mash et al.
patent: 4213676 (1980-07-01), Kaufmann
patent: 4250503 (1981-02-01), Shanks
patent: 4357374 (1982-11-01), Ogawa
patent: 4418102 (1983-11-01), Ferrato
patent: 4418987 (1983-12-01), Takanashi et al.
patent: 4427978 (1984-01-01), Williams
patent: 4564266 (1986-01-01), Durand et al.
patent: 4566758 (1986-01-01), Bos
patent: 4634229 (1987-01-01), Amstutz
patent: 4697884 (1987-10-01), Amstutz et al.
K. Metz, "Matrix Addressing of Nonemissive Displays", Nonemissive Electrooptic Displays, pp. 261-287, Plenum Press, 1975.
Patents Abstracts of Japan, vol. 4, No. 118 (P-24) [600], 22 aout 1980; and JP-A-55 73 023 (Suwa Seikosha K.K.)-*En entier*.
Patents Abstracts of Japan, vol. 4, No. 184 (P-41) [666], 18 decembre 1980; & JP-A-55 127 519 (Suwa Seikosha K.K.)-*En entier*.
Patents Abstracts of Japan, vol. 8, No. 175 (P-204) [1612], 11 aout 1984; & JP-A-59 69 735 (Seikoushiya)-*En entier*.
SID 1984, Digest of Technical Papers, vol. 15, p. 206.
SID 1985, Digest of Technical Papers, vol. 16, p. 278.
Journal of Applied Physics, vol. 47, Sep. 1976, pp. 3842-3845.
Mol. Cryst. Liq. Cryst. 1985, vol. 122, pp. 297-308, by F. C. Saunders et al.

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