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:
Feb. 01, 1994
Filed:
May. 10, 1993
Applicant:
Inventors:
Thomas C Borah, Vista, CA (US);
Javier A Ruiz, Oceanside, CA (US);
Assignee:
Hughes-JVC Technology Corporation, Carlsbad, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; G02F / ; G02F / ;
U.S. Cl.
CPC ...
359 67 ; 359 71 ; 359 72 ; 359 99 ;
Abstract
Creation of DC fields in a liquid crystal light valve caused a DC induced transient optical phenomenon in which output brightness level undergoes a change as the DC fields are redistributed within the liquid crystal light valve. Adverse effects of the DC induced transient optical output are minimized by employing a liquid crystal material of greatly decreased resistivity, which reduces the time constant of the liquid crystal device, making it comparable to the response time of the liquid crystal material itself.