Electron beam-addressed liquid crystal cell having coating layer

Electric lamp and discharge devices – With temperature modifier – For lead-in-seal or stem protection

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350339R, 313399, 358236, G02F 113

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active

047446366

ABSTRACT:
An electron beam-addressed liquid crystal cell for a light valve. The cell (40) includes liquid crystal material (42) sandwiched between two substrates (16, 44). One substrate (44) is addressed by the electron beam (60a, 60b) and includes a coating (51) having a rate of secondary electron emission greater than the characteristic rate of secondary electron emissions of the base layer (49) of the substrate (44). The enhanced secondary electron emission characteristics of the coated substrate (44) permit the cell to be modulated with relatively lower electron beam current for correspondingly higher image resolution.

REFERENCES:
patent: 3825791 (1974-07-01), Kazan
patent: 3875447 (1975-04-01), Kazan
patent: 3902096 (1975-08-01), Todd, Jr.
patent: 4131821 (1978-12-01), Mossman
D. A. Haven, "Electron-Beam Addressed Liquid Crystal Light Valve", IEEE Transaction on Electronic Devices, vol. ED-30, No. 5, May 1983.
I. E. Chang, "Electron Beam Addressable Liquid Crystal Display with Storage Capability", IBM Technical Disclosure Bulletin, vol. 16, No. 1, Jun. 1973.

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