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:
Apr. 21, 2009
Filed:
Jul. 13, 2007
Tzeng-ke Shiau, Chu Nan, TW;
Ming-dah Liu, Chu Nan, TW;
Der-woei Hsaio, Chu Nan, TW;
Wen-bin Chou, Chu Nan, TW;
Ching-shiang LI, Chu Nan, TW;
Tzeng-Ke Shiau, Chu Nan, TW;
Ming-Dah Liu, Chu Nan, TW;
Der-Woei Hsaio, Chu Nan, TW;
Wen-Bin Chou, Chu Nan, TW;
Ching-Shiang Li, Chu Nan, TW;
Coretronic Corporation, Miao Li County, TW;
Abstract
An optical multilayer film includes first and second optical layers, and a refracting layer. The first optical layer has a light-exit surface. The second optical layer has a light-incoming surface facing the light-exit surface of the first optical layer, and a light-outgoing surface opposite to the light-incoming surface and formed with a light-converging structure. The refracting layer is disposed between and is in contact with the first and second optical layers, is made from a transparent material, and has a refractive index that is smaller than that of the second optical layer.