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:
Jan. 08, 2019
Filed:
May. 17, 2016
Applicant:
Lg Display Co., Ltd., Seoul, KR;
Inventors:
Sunghoon Joo, Gyeonggi-do, KR;
Hyoseok Kim, Daejeon, KR;
Shinhan Kim, Seoul, KR;
Seonkeun Yoo, Gyeonggi-do, KR;
Min Yun, Gyeonggi-do, KR;
Seunghee Yoon, Seoul, KR;
Assignee:
LG Display Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); H01L 51/52 (2006.01); H01L 51/50 (2006.01); C07D 471/04 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0072 (2013.01); C07D 471/04 (2013.01); H01L 51/0054 (2013.01); H01L 51/0058 (2013.01); H01L 51/504 (2013.01); H01L 51/5072 (2013.01); H01L 51/5278 (2013.01); H01L 51/5044 (2013.01);
Abstract
An organic light emitting display device is provided. The organic light emitting display device includes at least two or more light emitting parts each having a light emitting layer and an electron transport layer; and a charge generation layer between the at least two or more light emitting parts. The charge generation layer comprises a compound that includes a core with two nitrogen atoms and a functional group having crystallinity.