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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.:

US 9773981 B1

PDFFull Text
Date of Patent:
Sep. 26, 2017

Filed:

Jun. 24, 2011

Organic light-emitting device and method

Applicants:

Simon King, Cambridgeshire, GB;

Martina Pintani, Cambridgeshire, GB;

Matthew Roberts, Cambridgeshire, GB;

Michael Cass, Cambridgeshire, GB;

Inventors:

Simon King, Cambridgeshire, GB;

Martina Pintani, Cambridgeshire, GB;

Matthew Roberts, Cambridgeshire, GB;

Michael Cass, Cambridgeshire, GB;

Assignees:

Cambridge Display Technology, Ltd., Godmanchester, GB;

Sumitomo Chemical Company Limited, Tokyo, JP;

Attorney:

Wolf, Greenfield & Sacks, P.C.

Primary Examiner:

Marie R Yamnitzky

Int. Cl.
CPC ...
H01L 51/54 (2006.01); C09K 11/06 (2006.01); H01L 51/00 (2006.01); C07C 13/567 (2006.01); C07C 15/18 (2006.01); C07C 15/52 (2006.01); C08G 61/02 (2006.01); C08G 61/12 (2006.01); C08L 65/00 (2006.01); H01L 51/50 (2006.01); H05B 33/14 (2006.01); H01L 51/56 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0058 (2013.01); C07C 13/567 (2013.01); C07C 15/18 (2013.01); C07C 15/52 (2013.01); C08G 61/02 (2013.01); C08G 61/12 (2013.01); C08G 61/122 (2013.01); C08L 65/00 (2013.01); C09K 11/06 (2013.01); H01L 51/0002 (2013.01); H01L 51/005 (2013.01); H01L 51/0032 (2013.01); H01L 51/0039 (2013.01); H01L 51/0052 (2013.01); H01L 51/5012 (2013.01); H01L 51/5016 (2013.01); H01L 51/56 (2013.01); H05B 33/14 (2013.01); C07C 2603/18 (2017.05); C08G 2261/148 (2013.01); C08G 2261/1414 (2013.01); C08G 2261/15 (2013.01); C08G 2261/226 (2013.01); C08G 2261/228 (2013.01); C08G 2261/312 (2013.01); C08G 2261/3162 (2013.01); C08G 2261/3245 (2013.01); C08G 2261/3422 (2013.01); C08G 2261/5222 (2013.01); C08G 2261/95 (2013.01); C08L 2205/02 (2013.01); C09K 2211/1416 (2013.01); C09K 2211/1425 (2013.01); C09K 2211/1433 (2013.01);
Abstract

Composition for use in an organic light-emitting device, the composition having a fluorescent light-emitting material and a triplet-accepting material subject to the following energetic scheme: 2×T>S>S, or T+T>S>Sin which: T1A represents a triplet excited state energy level of the triplet-accepting material; TIE represents a triplet excited state energy level of the light-emitting material; Srepresents a singlet excited state energy level of the triplet-accepting material; and Srepresents a singlet excited state energy level of the light-emitting material; and in which light emitted by the composition upon excitation includes delayed fluorescence.

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