Ferroelectric liquid crystal device with minute convexities betw

Details Ferroelectric liquid crystal device with minute convexities betw Ferroelectric liquid crystal device with minute convexities betw

1995-04-27

1996-12-31

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349143, 349172, G02F 1141, G02F 11333

Patent

active

055899641

ABSTRACT:
A ferroelectric liquid crystal device is constituted by a pair of substrates each having thereon a group of display electrodes, and a ferroelectric liquid crystal disposed between the substrates. Liquid crystal movement causing yellowing or local increase in liquid crystal layer thickness is minimized in the device by forming a substantial in liquid crystal layer thickness between a pixel part and a non-pixel part and/or by forming a groove having minute convexities with a maximum diameter of at least 0.1 .mu.m at non-pixel parts on a substrate so that the groove extends in a direction forming an angle of 45-135 degrees with a normal to smectic layers of the liquid crystal.

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