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:
Oct. 28, 2003
Filed:
Sep. 05, 2002
Applicant:
Inventor:
Yasuo Hira, Yokohama, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/00 ; G02F 1/03 ; G02F 2/710 ;
U.S. Cl.
CPC ...
G02F 1/00 ; G02F 1/03 ; G02F 2/710 ;
Abstract
An optical film comprising an optical element capable of forming a spatial distribution of light transmittance, and a light shield layer positioned on an opposite side of the optical element. The light shield layer is composed of a compound which changes light transmittance permanently depending on irradiation of an energy beam, and has light transmitting regions near a position corresponding to the optical element and light shielding regions at positions other than the light transmitting regions. The light shielding regions have a smaller light transmittance than the light transmittance of the light transmitting regions.