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:
Jan. 04, 2022
Filed:
Mar. 05, 2018
Applicant:
Toppan Printing Co., Ltd., Tokyo, JP;
Inventor:
Ryo Shoda, Tokyo, JP;
Assignee:
TOPPAN PRINTING CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 7/00 (2019.01); G02B 6/00 (2006.01); G02F 1/00 (2006.01); B32B 7/02 (2019.01); B32B 27/00 (2006.01); G02B 5/20 (2006.01); B32B 27/04 (2006.01); B32B 27/38 (2006.01);
U.S. Cl.
CPC ...
B32B 7/02 (2013.01); B32B 27/00 (2013.01); B32B 27/04 (2013.01); B32B 27/38 (2013.01); G02B 5/20 (2013.01);
Abstract
The present invention provides a wavelength conversion sheet protective film having a structure in which a first film, which includes a first substrate and a first barrier layer, and a second film, which includes a second substrate, are bonded to each other at a surface of the first barrier layer and one surface of the second substrate via an adhesive layer, wherein a thermal expansion coefficient in a TD direction in a temperature range of 30 to 90° C. is about 1.0×10/K or less.