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:
Aug. 07, 2018
Filed:
May. 05, 2016
Lg Display Co., Ltd., Seoul, KR;
Dohan Kim, Goyang-si, KR;
Sunghoon Joo, Paju-si, KR;
Jungkeun Kim, Seoul, KR;
Byungsoo Kim, Goyang-si, KR;
Eunjung Park, Goyang-si, KR;
Hyoseok Kim, Daejeon, KR;
Seonkeun Yoo, Gunpo-si, KR;
Hanbyeol Seok, Seoul, KR;
Seunghee Yoon, Seoul, KR;
LG DISPLAY CO., LTD., Seoul, KR;
Abstract
An organic light emitting display device is discussed. The organic light emitting display device can include at least two or more light emitting parts each including a light emitting layer and an electron transport layer; and a charge generation layer between the two or more light emitting parts and including an N-type charge generation layer, wherein the electron transport layer includes an electron transport compound including a functional group with high electron mobility, and the N-type charge generation layer includes a charge generation compound including a functional group for matching the energy level of the electron transport compound.