Liquid crystal cell sealant assembly

Details Liquid crystal cell sealant assembly Liquid crystal cell sealant assembly

1990-06-05

1991-05-21

Miller, Stanley D.

350334, 350343, G02F 113

Patent

active

050169874

ABSTRACT:
Active components of a liquid crystal light valve are provided on opposed faces of a pair of transparent substrates that have peripheral edges which flare out and away from the opposed faces at predetermined angles. A sealant ring formed from a stiffly resilient material encircles the substrates to seal the space between their opposed faces. The inner surface of the ring has a chevron profile with angles complementary to the substrate edge angles, and an unstressed inner diameter slightly smaller than the corresponding outer diameters of the substrates. The sealant ring is thus slightly deformed outwardly as the substrates are tightened together to a desired spacing, producing a hermetic seal for the active light valve elements.

REFERENCES:
patent: 4575190 (1986-03-01), Wood et al.
patent: 4712875 (1987-12-01), Tsuboyama et al.
Efron et al., "The Silicon Liquid-Crystal Light Valve", Journal of Applied Physics, vol. 57, No. 4, Feb. 15, 1985, pp. 1356-1368.

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