Weak boundary storage liquid crystal display devices with bias v

Details Weak boundary storage liquid crystal display devices with bias v Weak boundary storage liquid crystal display devices with bias v

1982-05-24

1986-03-25

Corbin, John K.

350340, G02F 1133

Patent

active

045779309

ABSTRACT:
A two-electrode nematic liquid crystal display (LCD) device with inherent storage effect is described. The described storage effect LCD device, which can properly operate without refresh circuitry, can be of either the homogeneous or twisted nematic type. In accordance with the invention, the liquid crystal material-to-substrate anisotropic surface anchoring force is set sufficiently weak by surface treatment techniques, to prevent the restoration of the device to its quiescent state once the device has been driven temporarily to its active state by a temporary increase in an applied electric field.

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