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:
May. 22, 2018
Filed:
Oct. 19, 2015
Lg Display Co., Ltd., Seoul, KR;
JungKeun Kim, Seoul, KR;
ChangWook Han, Seoul, KR;
DoHan Kim, Gyeonggi-do, KR;
YoonHeung Tak, Gyeonggi-do, KR;
Jeongdae Seo, Incheon, KR;
Hyoseok Kim, Daejeon, KR;
Hyeseung Kang, Seoul, KR;
Jun Yeob Lee, Gyeonggi-do, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
An organic light emitting display device is disclosed. The organic light emitting device includes a first light emitting part between an anode and a cathode, the first light emitting layer having a hole injection layer, a first hole transport layer, and a first light emitting layer; a second light emitting part over the first light emitting part, the second light emitting part having a second hole transport layer and a second light emitting layer; and a first charge generation layer between the first light emitting part and the second light emitting part, the first charge generation layer having a P-type charge generation layer, wherein at least one among the hole injection layer, the first hole transport layer, the second hole transport layer, and the P-type charge generation layer includes a carbonitrile compound.