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. 25, 2001
Filed:
Nov. 04, 1998
Masahito Ohe, Mobara, JP;
Shigeru Matsuyama, Mobara, JP;
Kenkichi Suzuki, Mobara, JP;
Masaaki Matsuda, Mobara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A polarized light irradiation method for achieving both wide view-field angles and display uniformity with less display irregularity as well as an apparatus for use in attaining this polarized light irradiation method. After reshaping output light from a light source,into a beam pattern BP, a polarized light separation plate,is used to separate therefrom only P-polarized wave components while simultaneously causing the polarizing axis of the separated P-polarized wave components to be identical to the short side direction of the rectangular beam pattern BP thereby letting it pass through an organic high-molecular or polymeric film acting as an optical radiation surface,for addition of a liquid crystal orientation controllability thereto.