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:
Jun. 24, 2003
Filed:
Aug. 21, 2002
Narutoshi Hayashi, Toyonaka, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
A light-polarizing film is provided which possesses a light transmittance of not more than 0.3% wavelengths of from 430 nm to 500 nm inclusive when irradiated with a linearly polarized light with a vibration plane parallel to an absorption axis of said film, and a light transmittance of not less than 77% at wavelengths of from 430 nm to 500 nm inclusive when irradiated with a linearly polarized light with a vibration plane perpendicular to the absorption axis of said film. When a light-polarizing plate comprising the light polarizing film is applied to the liquid crystal panel for blue of a liquid crystal projector, the obtained liquid crystal projector displays images featuring bright and 15 natural color tones.