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:
Mar. 16, 2021
Filed:
Jul. 12, 2017
Applicant:
Japan Display Inc., Minato-ku, JP;
Inventors:
Hidehiro Sonoda, Tokyo, JP;
Takenori Hirota, Tokyo, JP;
Yasushi Tomioka, Tokyo, JP;
Noboru Kunimatsu, Tokyo, JP;
Assignee:
Japan Display Inc., Minato-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08G 73/10 (2006.01); G02F 1/1337 (2006.01); C09D 179/08 (2006.01); G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
C08G 73/1067 (2013.01); C08G 73/1014 (2013.01); C08G 73/1071 (2013.01); C08G 73/1078 (2013.01); C09D 179/08 (2013.01); G02F 1/133711 (2013.01); G02F 1/133723 (2013.01); G02F 1/133788 (2013.01); G02F 2001/133354 (2013.01); G02F 2001/133397 (2013.01);
Abstract
According to one embodiment, a varnish for a photo alignment film includes an imidization promotor and a first polyamic acid-based compound in an organic solvent. The first polyamic acid-based compound is a polyamic acid or a polyamic acid ester. The imidization promotor has skeleton containing no primary amino group and no secondary amino group. The first polyamic acid-based compound has terminal skeletons containing no primary amino group.