Abstract
New highly transparent liquid-crystal light valves for the recording, storage, and display of high-resolution graphic images in projection displays are described. Information is recorded in these light valves by an x-y deflected intensity-modulated ir laser beam which locally heats visually transparent infrared absorbing electrodes. The resulting temporary heating of the cholesteric liquid crystal creates light-scattering centers that remain stored until erased electrically. Resolution is 50 lines/mm over a 4×4-cm area. Contrast is better than 10:1. Addressing speed is higher than 104 picture elements/sec for a few mW of 1.06-μm YAlG laser power.
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