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:
Aug. 23, 2022
Filed:
Nov. 27, 2018
Applicant:
Nitto Denko Corporation, Osaka, JP;
Inventors:
Assignee:
NITTO DENKO CORPORATION, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09B 57/00 (2006.01); G02B 5/22 (2006.01); G02F 1/1335 (2006.01); C07D 403/08 (2006.01); H01L 33/50 (2010.01); G02F 1/13363 (2006.01); C07D 207/44 (2006.01); C07D 209/60 (2006.01); C07D 207/00 (2006.01); C07D 209/00 (2006.01); C07D 403/00 (2006.01); C09J 7/38 (2018.01); C09J 7/10 (2018.01); C09J 11/06 (2006.01); C09J 7/20 (2018.01); G02F 1/1333 (2006.01); G02B 1/10 (2015.01);
U.S. Cl.
CPC ...
G02F 1/133528 (2013.01); C07D 207/00 (2013.01); C07D 207/44 (2013.01); C07D 209/00 (2013.01); C07D 209/60 (2013.01); C07D 403/00 (2013.01); C07D 403/08 (2013.01); C09B 57/007 (2013.01); C09J 7/10 (2018.01); C09J 7/20 (2018.01); C09J 7/385 (2018.01); C09J 11/06 (2013.01); G02B 1/10 (2013.01); G02B 5/223 (2013.01); G02F 1/133302 (2021.01); G02F 1/133509 (2013.01); G02F 1/133533 (2013.01); G02F 1/133536 (2013.01); G02F 1/133634 (2013.01); H01L 33/50 (2013.01); C09J 2203/318 (2013.01); C09J 2301/302 (2020.08); C09J 2301/312 (2020.08); C09J 2301/408 (2020.08); C09J 2429/008 (2013.01); C09J 2433/00 (2013.01); C09K 2323/03 (2020.08); C09K 2323/031 (2020.08); G02F 1/133541 (2021.01); G02F 1/133638 (2021.01); G02F 2202/28 (2013.01);
Abstract
Described herein are embodiments of squarylium compounds for use as filters in light-emitting and/or display devices. One problem of known quarylium dyes is that strong nucleophiles can attack the electron-deficient cyclobutene ring which can lead to a loss of the dye's colour. Another potential drawback with squaraine dyes can be their tendency to form aggregates, which can lead to a substantial broadening of their absorption bands. Use of the present compounds in filters address these problems. The squarylium compounds of the present invention have the following formulas: