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:
Dec. 14, 1999
Filed:
Nov. 20, 1997
Applicant:
Inventors:
Kikuo Kaise, Kanagawa, JP;
Shizuo Nishihara, Kanagawa, JP;
Toshihiro Fukuda, Kanagawa, JP;
Mikiya Kobayashi, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
349 95 ; 349-5 ;
Abstract
According to a liquid crystal panel of the present invention, the focal length of micro-lenses is set to be longer than the distance between the micro-lens array and the first substrate, while light collected by each micro-lens is arranged to focus inside the first substrate. Thus, the divergence angle after focusing can be reduced. Therefore, the maximum light-emerging angle from the LCD panel can be reduced, and eclipse of the light which causes chrominance or luminance non-uniformity does not occur even when a lens having a high F number is used as a projection lens.