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:
Apr. 30, 1996
Filed:
Sep. 28, 1993
Applicant:
Inventor:
William K Bohannon, San Diego, CA (US);
Assignee:
Proxima Corporation, San Diego, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
353 31 ; 353 34 ; 353 20 ;
Abstract
Light pre-polarized in a particular plane is divided into a plurality of paths, where each path includes a reflecting mirror, a dichroic mirror and a liquid crystal display. The light in each display is selectively modulated and combined for projection purposes. The displays are rubbed in directions coordinate with the display peripheries to enhance the contrast of the light passing through the display.