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:
Feb. 08, 2022
Filed:
May. 04, 2017
Optical film, and optical barrier film, color conversion film and backlight unit each using the same
Applicant:
Toppan Printing Co., Ltd., Tokyo, JP;
Inventors:
Genki Harada, Tokyo, JP;
Hayato Ida, Tokyo, JP;
Assignee:
TOPPAN PRINTING CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 7/02 (2019.01); G02B 1/14 (2015.01); F21V 9/30 (2018.01); B32B 9/00 (2006.01); G02B 1/16 (2015.01); F21V 8/00 (2006.01); G02B 5/02 (2006.01); G02F 1/13357 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02B 1/14 (2015.01); B32B 7/02 (2013.01); B32B 9/00 (2013.01); F21V 9/30 (2018.02); G02B 1/16 (2015.01); G02B 6/005 (2013.01); G02B 5/0226 (2013.01); G02B 5/0278 (2013.01); G02B 5/0294 (2013.01); G02F 1/133606 (2013.01); G02F 1/133614 (2021.01);
Abstract
An optical film comprises a first transparent film substrate, a matte layer arranged on the first transparent film substrate and having irregularities, the matte layer having a coefficient of static friction of not larger than 0.3 and a maximum height roughness Rz of not less than 0.05 μm to not larger than 8 μm.