Display process using a thermo-optical effect with a memory in a

Details Display process using a thermo-optical effect with a memory in a Display process using a thermo-optical effect with a memory in a

1981-08-31

1984-02-07

Gron, Teddy S.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

25229901, 2522996, 25229962, 340713, 340794, 350330, 350350R, 350351, 350331R, 358 60, 358 61, 358230, C09K 334, G02F 1133, G02F 1137, G09F 935

Patent

active

044306504

ABSTRACT:
A process wherein certain disc-like liquid crystals, which locally undergo heating and then rapid cooling on either side of the transition temperature between two mesophases permit the liquid crystal to become diffuse with an adequate contrast to be used for display purposes. The following liquid crystals can be utilized, i.e. triphenylene derivatives of formulas: ##STR1##

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Molecular Crystals and Liquid Crystals vol. 49, No. 6, 1979, Gordon and Breach Science Publishers Ltd. (US) C. Destrade et al: "Mesomorphic Polymorphism in some disc-like Compounds" pp. 169-174.
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