Liquid crystal light valve having capability of providing high-contrast image
AssigneeSharp Kabushiki Kaisha
InventorsYoshihiro Izumi, Tsuyoshi Okazaki, Hidehiko Yamashita, Akitsugu Hatano
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Abstract
A liquid crystal light valve includes a first substrate having a transparent electrode formed thereon, a second substrate, a liquid crystal provided between the first and second substrates, a photoconductive layer formed between the liquid crystal layer and the first substrate, the photoconductive layer being adapted to change impedance thereof in response to an incident ray of light thereto, and a light waveguide for emitting light from the first substrate side to the photoconductive layer.
Claims15
A liquid crystal light valve for forming an image according to data signals applied exterior thereof, comprising
- a first substrate having a first transparent electrode formed thereon;
- a second substrate having a plurality of second transparent electrodes formed thereon in a striped manner and extending along one direction, said data signals being applied to said second electrodes;
- a liquid crystal provided between said first and second substrates;
- a photoconductive layer formed between said liquid crystal layer and said first substrate, said photoconductive layer being adapted to change impedance thereof in response to an incident ray of light thereto;
- and
- a plurality of light waveguides disposed in a first substrate side with respect to said liquid crystal for emitting scanning light signals to said photoconductive layer, said light waveguides being formed in a striped manner and extending along another direction intersecting said one direction.
Dependencies are inferred from the claim text.