Information memory medium and information recording/holding proc

Details Information memory medium and information recording/holding proc Information memory medium and information recording/holding proc

1992-12-03

1994-05-31

Thomas, Alexander S.

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

With charge transferring layer of specified composition

428 64, 428 65, 428913, 430945, 346 11, 346 76L, 359 93, 359 99, 359100, 365 65, 365145, 3692751, C09K 1900

Patent

active

053168062

ABSTRACT:
Provided is an information memory medium comprising a recording layer containing a polymeric liquid crystal having a ferroelectric chiral smectic phase, wherein said polymeric liquid crystal comprises a polymeric liquid crystal having a temperature region, in which its electric-field response time changes by the factor of not less than 200 times, within a temperature range of the ferroelectric chiral smectic phase on the side of higher temperatures than its glass transition temperature.

REFERENCES:
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patent: 5024784 (1991-06-01), Eich
patent: 5034153 (1991-07-01), Uchida
Patent Abstracts of Japan, vol. 13, No. 54, (Feb. 8, 1989) (P-824)(3402).
Nakamura, et al., "Ferroelectric liquid-crystal light valve addressed by laser heating," Journal of Applied Physics, 67(2), 996, 1990.

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