Chiral smectic liquid crystal display having an increased appare

Details Chiral smectic liquid crystal display having an increased appare Chiral smectic liquid crystal display having an increased appare

1995-02-22

1996-12-10

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349172, 349191, G02F 1141, G02F 11337, G09K 1902

Patent

active

055836801

ABSTRACT:
A ferroelectric liquid crystal device is constituted by a pair of substrates disposed parallel to each other and each having on its inner surface an electrode, an insulating film and an alignment control film, and a ferroelectric liquid crystal disposed between the substrates. The alignment control films on the pair of substrates are provided with uniaxial alignment axes in directions which are substantially parallel and opposite to each other. The ferroelectric liquid crystal is placed in an alignment state showing a pretilt angle .alpha. of 5 degrees <.alpha.<45 degrees formed by transition from a bistable state giving a lower apparent tilt angle to a bistable state giving a higher apparent tilt angle, the action of mechanical or electrical means, such as application of ultrasonic treatment, static load or AC electric field.

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Ouchi, et al., "Smectic layer . . . Evaporation Technique", Jap. Journal Applied Physics, vol.27, No. 11 (1988) 1993-5.

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