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:
Jul. 31, 2007
Filed:
Jan. 04, 2006
Kevin Patrick Capaldo, Mount Vernon, IN (US);
Brian Thomas Carvill, Grayslake, IL (US);
Dennis Joseph Coyle, Clifton Park, NY (US);
Yu HU, Evansville, IN (US);
Chunghei Yeung, Evansville, IN (US);
Yan Zhang, Shanghai, CN;
Kevin Patrick Capaldo, Mount Vernon, IN (US);
Brian Thomas Carvill, Grayslake, IL (US);
Dennis Joseph Coyle, Clifton Park, NY (US);
Yu Hu, Evansville, IN (US);
Chunghei Yeung, Evansville, IN (US);
Yan Zhang, Shanghai, CN;
General Electric Company, Schenectady, NY (US);
Abstract
In one embodiment, a brightness enhancement film comprises: a diffusing film comprising a front surface and a back surface, a coating on the front surface, and light redirecting structures disposed in the coating. The brightness enhancement film is capable of collimating light, and wherein, without the coating, the diffusing film would be capable of spread light passing through the back surface. In another embodiment, the brightness enhancement film comprises: a diffusing film comprising a front surface and a back surface, a coating on the front surface, and light redirecting structures disposed in the coating. The diffusing film has a stress retardation gradient of less than or equal to 50 nm/in, wherein an interval for calculation of the stress retardation gradient is less than 1 inch. The brightness enhancement film is capable of collimating light.