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:
Mar. 24, 2020
Filed:
Dec. 20, 2017
Applicant:
Lg Display Co., Ltd., Seoul, KR;
Inventors:
Young-Ju Kim, Paju-si, KR;
Tae-Kung Ryoo, Paju-si, KR;
Young-Jun Yu, Seoul, KR;
Hyuk-Chan Gee, Seoul, KR;
Sung-Jin Park, Suwon-si, KR;
Assignee:
LG DISPLAY CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/52 (2006.01); H01L 51/56 (2006.01); H01L 27/32 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5234 (2013.01); H01L 27/3248 (2013.01); H01L 51/56 (2013.01); H01L 27/3211 (2013.01); H01L 27/3244 (2013.01); H01L 51/0085 (2013.01);
Abstract
An electroluminescent display device includes a first electrode; a hole auxiliary layer on the first electrode; a light emitting material layer on the hole auxiliary layer; and a second electrode on the light emitting material layer, wherein the second electrode includes a first metal and further includes a second metal or metal compound having a refractive index of 1.3 or more as a dopant.