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. 17, 2019
Filed:
Dec. 16, 2014
Lg Display Co., Ltd., Seoul, KR;
Jeong-Haeng Heo, Gyeonggi-do, KR;
Jae-Man Lee, Seoul, KR;
Jeong-Dae Seo, Incheon, KR;
Se-Ung Kim, Seoul, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
An organic electroluminescent device and organic electroluminescent display device having enhanced efficiency are disclosed. The organic electroluminescent device includes first and second electrodes facing each other on a substrate, first and second emission layers formed between the first and second electrodes, a hole transport layer formed between the first electrode and the first emission layer, an electron transport layer formed between the second electrode and the second emission layer, and at least one emission control layer formed between the first and second emission layers and having the same properties as those of at least any one of the hole transport layer and the electron transport layer.