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:
Sep. 13, 2016
Filed:
Dec. 02, 2014
Lg Display Co., Ltd., Seoul, KR;
So-Yeon Ahn, Seoul, KR;
Chang-Wook Han, Seoul, KR;
Hong-Seok Choi, Seoul, KR;
Seung-Ryong Joung, Gwangmyeong-si, KR;
Gwi-Jeong Cho, Daegu, KR;
Hee-Dong Choi, Uiwang-si, KR;
LG DISPLAY CO., LTD., Seoul, KR;
Abstract
An organic electroluminescent device and organic electroluminescent display device having enhanced efficiency are discussed. In one example, the organic electroluminescent device includes first and second electrodes facing each other on a substrate and at least two emission layers formed between the first and second electrodes and realizing blue light, wherein, among the emission layers, a first blue emission layer close to the first electrode includes a first blue dopant having a different maximum luminescence wavelength than that of a second blue dopant of a second blue emission layer close to the second electrode.