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:
Jul. 20, 1993
Filed:
Oct. 09, 1991
Applicant:
Inventors:
Jean-Claude Lehureau, Sainte Genevieve des Bois, FR;
Bruno Mourey, Voiron, FR;
Assignee:
Thomson-CSF, Puteaux, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
359 64 ; 359 37 ; 359 49 ; 359 87 ;
Abstract
The disclosure relates to color image display devices in which the light is modulated spatially by a liquid crystal display screen, and is designed to improve the luminous efficiency and resolution of the color image in display devices of this kind. The disclosed display device includes a light source and a liquid crystal display screen. Each cell of the liquid crystal display screen has means to modulate the two orthogonal polarizations of light independently of each other.