Integrated thermally compensated liquid crystal display device

Details Integrated thermally compensated liquid crystal display device Integrated thermally compensated liquid crystal display device

1976-04-29

1977-06-14

Bauer, Edward S.

Electrical resistors

Incased, embedded, or housed

Element in insulation with outer metallic sheath

338 22R, G02F 113

Patent

active

040293939

ABSTRACT:
A reflective mode liquid crystal cell having an integral self-actuating heater for maintaining a liquid crystal material in the cell above a temperature at which it solidifies. In this cell, the liquid crystal material is disposed between a transparent member, and a member having a nontransparent barium titanate portion. The barium titanate positive temperature coefficient of electrical resistance has a preselected Curie temperature above the temperature at which the liquid crystal material solidifies. A single power source can be used for electro-optic display, and heat generated by current flow through the barium titanate.

REFERENCES:
patent: 3499112 (1970-03-01), Heilmeier et al.
patent: 3604930 (1971-09-01), Allen
patent: 3770961 (1973-11-01), Westell
patent: 3876861 (1975-04-01), Wightman et al.
patent: 3940591 (1976-02-01), Teng

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