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. 13, 1990
Filed:
Jun. 07, 1988
Applicant:
Inventor:
Joseph Reichman, Roslyn Estates, NY (US);
Assignee:
Grumman Aerospace Corporation, Bethpage, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F / ; H01J / ;
U.S. Cl.
CPC ...
330-43 ; 350342 ;
Abstract
A surface state photodiode is used as the photosensitive element for a Spatial Light Modulator, which includes a liquid crystal layer. The surface of the photodiode which faces the liquid crystal layer has formed thereon surface states, by means of adsorption of foreign molecules to create a depletion layer, thereby effecting a high dark impedance region. Such a Spatial Light Modulator provides for a high resolution image and simplicity in manufacture.