The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 1995
Filed:
Jun. 15, 1993
Dai Imanishi, Yokosuka, JP;
Nozomu Ohkouchi, Yokosuka, JP;
Kazushige Ohtawara, Kyoto, JP;
Hiroyuki Natsuhori, Kamakura, JP;
Shigeo Shimizu, Yokohama, JP;
Toshio Konno, Hoya, JP;
Masanobu Shigeta, Yokosuka, JP;
Hiromitsu Takenaka, Yokosuka, JP;
Tadayuki Shimada, Yokosuka, JP;
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
A spatial light modulator capable of displaying a good contrast and high resolution moving pictures without an after-image effect is disclosed. The modulator comprises a pair of transparent electrodes for generating an electric field therebetween and at least a photoconductive member and a photo modulation member being laminated and interposed between the transparent electrodes, the photoconductive member is a film having a thickness ranged from 10 .mu.m to 30 .mu.m and is made of hydrogenated amorphous silicon doped with boron such that an amount of the boron with respect to silicon in the hydrogenated amorphous silicon in atomic percent is, 0.1 to 1.0 ppm. To enhance the modulator performance, a thickness of the photoconductive member is so selected to have light absorptance ranged 70% to 95% at a wavelength of a writing light which writes information in the modulator.