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. 23, 2022
Filed:
Oct. 25, 2018
Applicant:
Lg Display Co., Ltd., Seoul, KR;
Inventors:
Seung-Hyun Kim, Goyang-si, KR;
Yong-Hwan Kim, Seoul, KR;
Young-Kwan Jung, Paju-si, KR;
Hee-Yeol Kim, Paju-si, KR;
Assignee:
LG Display Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/32 (2006.01); H01L 51/50 (2006.01); H01L 51/52 (2006.01);
U.S. Cl.
CPC ...
H01L 51/504 (2013.01); H01L 27/3209 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 51/5092 (2013.01); H01L 51/5234 (2013.01); H01L 51/5278 (2013.01); H01L 27/322 (2013.01); H01L 51/5218 (2013.01); H01L 2251/5315 (2013.01); H01L 2251/5376 (2013.01); H01L 2251/558 (2013.01);
Abstract
A white organic light emitting device and an organic light emitting display device using the white organic light emitting device stably implement white light in a tandem-type top emission structure through uniform lifespans according to emitted colors of light despite driving of the white organic light emitting device for a long time.