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:
Mar. 05, 1996
Filed:
Oct. 28, 1994
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
A spacial light modulation device is composed of a photoconductive layer, a pixel electrode layer, a dielectric reflection layer, and a liquid crystal layer all laminated in sequence between first and second drive electrode layers. The pixel electrode layer includes a plurality of pixel electrodes partitioned by an insulating substance layer and arranged at predetermined intervals. In particular, to obtain higher contrast and higher resolution of the modulated and reflected light by the device, the surface area of each of the pixel electrodes formed on the photoconductive layer side is determined smaller than that formed on the dielectric reflection layer side. That is, in the pixel electrode layer, a plurality of square-shaped pixel electrodes are arranged into a matrix pattern at predetermined intervals. Each of the square-shaped pixel electrode is composed of a Schottky contact portion in contact with the photoconductive layer and a pixel composing portion in contact with the dielectric reflection layer. The contact area of the Schottky contact portion with the photoconductive layer is determined smaller than the contact area of the pixel composing portion with the dielectric reflection layer. It is also preferable that a dielectric planarized layer is further formed between the pixel electrode layer and the dielectric reflection layer to planarize the surface of the dielectric reflection layer.