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:
Jan. 08, 1985
Filed:
Oct. 28, 1982
Akihiko Imaya, Nara, JP;
Susumu Kitamura, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A liquid crystal display panel comprises a pair of polarizers, the polarization axes of the polarizers being substantially orthogonal each other, a pair of substrates each supporting an electrode, a film provided between one of the substrates and one of the polarizers, the film having an optical axis inclined to the polarization axis of said one of the polarizers at about 45.degree., and a liquid crystal material disposed between the substrates, molecules of the liquid crystal material being twisted at about 90.degree. between the surface of the substrates. The panel is adapted to provide a positive type display where the film is not positioned and the panel is adapted to provide a negative type display where the film is positioned.