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:
Jul. 03, 2018
Filed:
Feb. 25, 2016
Applicant:
Samsung Display Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Inventors:
Youngtak Lee, Yongin-si, KR;
Jahyun Im, Yongin-si, KR;
Assignee:
Samsung Display Co., Ltd., Yongin-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/00 (2006.01); H01L 27/32 (2006.01); C07D 493/04 (2006.01); C07D 307/77 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0073 (2013.01); C07D 307/77 (2013.01); C07D 493/04 (2013.01); H01L 27/3248 (2013.01); H01L 51/0058 (2013.01); H01L 51/0072 (2013.01); H01L 51/0077 (2013.01); H01L 51/0094 (2013.01); H01L 51/006 (2013.01); H01L 51/0054 (2013.01); H01L 51/506 (2013.01); H01L 51/5008 (2013.01); H01L 51/5076 (2013.01); H01L 2251/558 (2013.01);
Abstract
When a decrease in low-grey level region (e.g., 0 to 80 grey) efficiencies of organic light emitting devices is not constant, deviation among display panels may cause color change and stain in the low luminance region. Aspects of the present disclosure are directed toward a compound to overcome this problem and an organic light-emitting device including the same. The compound may be represented by Formula 1: Organic light-emitting devices including this compound in the buffer layer were found to have improved efficiencies at low grey levels.