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:
Aug. 11, 1992
Filed:
Oct. 26, 1990
Kohei Arakawa, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A liquid crystal display comprising a liquid crystal element, at least two birefringent films and a pair of polarizing sheets so arranged that said element and said films are held therebetween, said liquid crystal element comprising a cell composed of two sheets of substrates and a twisted nematic liquid crystal, each substrate being provided with an electrode on one surface thereof, said substrates being arranged so that the electrodes are opposed to each other and said twisted nematic liquid crystal being held between said electrodes, characterized in that said birefringent films are composed of at least one uniaxially stretched film of a polymer having a positive intrinsic birefringence and light transmission properties and at least one uniaxially stretched film of a polymer having a negative intrinsic birefringence and light transmission properties.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile