Liquid crystal cell sealant assembly
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United States of America Patent
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-
May 21, 1991
Grant Date -
N/A
app pub date -
Jun 5, 1990
filing date -
Jun 5, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Cited Art Landscape
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