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:
Dec. 31, 2019
Filed:
Jul. 13, 2017
Imat Corporation, Hsinchu, TW;
Tsai-An Yu, Hsinchu County, TW;
Da-Ren Chiou, Taoyuan, TW;
Shih-Ming Hung, Hsinchu, TW;
Peng-Shun Tsai, Hsinchu County, TW;
Yi-Ting Chiu, Hsinchu County, TW;
Kuo-Chen Wu, Hsinchu, TW;
Yi-Chien Chen, Hsinchu County, TW;
imat corporation, Hsinchu, TW;
Abstract
An ultra-thin broadband retardation film is provided. The broadband retardation film includes a first retardation film and a second retardation film. The second retardation film is disposed on a side of the first retardation film, wherein an in-plane retardation value Ro of the first retardation film is between 70 nm and 130 nm, an in-plane retardation value Ro of the second retardation film is between 140 nm and 260 nm, and an angle between an optic axis of the first retardation film and an optic axis of the second retardation film is between 35° and 70°.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile