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:
Nov. 25, 2025
Filed:
Dec. 13, 2021
Applicant:
Fujifilm Corporation, Tokyo, JP;
Inventors:
Nobutaka Fukagawa, Minami-ashigara, JP;
Hirofumi Toyama, Minami-ashigara, JP;
Daisuke Sasaki, Minami-ashigara, JP;
Yoshihiro Jimbo, Minami-ashigara, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/52 (2006.01); C08K 5/3445 (2006.01); C08K 5/353 (2006.01); C08L 25/06 (2006.01); C09B 23/16 (2006.01); C09B 57/00 (2006.01); C09B 67/22 (2006.01); G02B 1/04 (2006.01); H10K 50/86 (2023.01); H10K 59/80 (2023.01); G02B 5/22 (2006.01);
U.S. Cl.
CPC ...
C08L 25/06 (2013.01); C08K 5/3445 (2013.01); C08K 5/353 (2013.01); C09B 23/166 (2013.01); C09B 57/007 (2013.01); C09B 67/0034 (2013.01); G02B 1/04 (2013.01); H10K 50/865 (2023.02); H10K 59/8792 (2023.02); G02B 5/22 (2013.01);
Abstract
There are provided a wavelength selective absorption filter including a resin, and four types of dyes A to D each having a main absorption wavelength range in different specific wavelength regions, in which an absorbance Ab (λ) of the wavelength selective absorption filter at a wavelength λ nm satisfies specific Relational Expressions (I) to (VI), and an organic electroluminescent display device.