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. 22, 2022
Filed:
Aug. 07, 2018
Applicant:
Okinawa Institute of Science and Technology School Corporation, Okinawa, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/06 (2006.01); G09F 13/20 (2006.01);
U.S. Cl.
CPC ...
C09K 11/06 (2013.01); G09F 13/20 (2013.01);
Abstract
An organic long-persistent luminescent composition containing a first organic compound, a second organic compound and a third organic compound and satisfying the following expression (1) is a long-persistent luminescent material that facilitates emission color control. E(A) represents a lowest excited singlet energy level of emission from the first organic compound and the second organic compound, E(B) represents a lowest excited singlet energy level of the third organic compound.()−()≤0.15 eV  (1)