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US 5,209,955 AGranted
Photoconductive polymer based spatial light modulator
AssigneeThomson-CSF
InventorsDominique Broussoux, Jean-Luc Ayral, Marc Lagarde
Life of this patent
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Abstract
Disclosed is a spatial light modulator of the type associating a layer of liquid crystal (2) with a layer of a photoconductive material (1), the photoconductive material being based on polysilane or polygermane.
Claims6
A spatial light modulator of the type juxtaposing a liquid crystal layer with a layer of an intrinsic photoconductive thin film material having a mobility of 10.sup.-4 cm.sup.2 /Vs and high spatial resolution, wherein the photoconductive material is based on polygermane of the following chemical formula:
- ##STR1## wherein X and Y are each alkyl, allyl or aryl radicals, and n represents the degree of polymerization.
Dependencies are inferred from the claim text.