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:
Sep. 14, 2021
Filed:
Sep. 27, 2018
Sumitomo Bakelite Co., Ltd., Shinagawa-ku, JP;
Takuya Oyama, Shinagawa-ku, JP;
Tetsuya Ishikawa, Shinagawa-ku, JP;
SUMITOMO BAKELITE CO., LTD., Shinagawa-ku, JP;
Abstract
An optical sheet of the present invention is an optical sheet that has flexibility and is used in a curved state of being curved in one direction, and includes a polarized layerthat polarizes incident light and a specific wavelength absorption layer provided on a curved concave side from the polarized layerand containing a resin material and a light absorbing agent that absorbs light in a specific wavelength range out of light in a wavelength range of 350 nm to 740 nm. In addition, the resin material is preferably a polycarbonate having a viscosity average molecular weight Mv of 20,000 to 30,000.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile