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:
Sep. 14, 2004
Filed:
Sep. 05, 2001
Applicant:
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 1/960 ; G02F 1/1337 ; G02F 1/1345 ;
U.S. Cl.
CPC ...
C09K 1/960 ; G02F 1/1337 ; G02F 1/1345 ;
Abstract
A light control device includes a GH cell and a polarizer wherein a host material is made of a negative type liquid crystal whose dielectric anisotropy is negative and a guest material is made of a dichromatic positive type dye. The polarizer is provided at a side of light incident on the polarizer. A cell gap ranges from 2 &mgr;m to 4 &mgr;m, at least, in an effective light path.
Yanagida, Toshiharu. (2004). Liquid crystal display having liquid crystal cell gap variation (U.S. Patent No. 6791657). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6791657
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile