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. 22, 2017
Filed:
Jun. 29, 2016
Applicant:
Lg Display Co., Ltd., Seoul, KR;
Inventors:
Assignee:
LG Display Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/52 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/504 (2013.01); H01L 51/5088 (2013.01); H01L 51/5092 (2013.01); H01L 51/5218 (2013.01); H01L 51/5234 (2013.01); H01L 2251/5315 (2013.01); H01L 2251/558 (2013.01);
Abstract
Disclosed is an organic light emitting display (OLED) apparatus which facilitates to lower a driving voltage and to improve a lifespan by optimizing a balance of electrons and holes among a plurality of stacks, wherein the OLED apparatus may include the plurality of stacks disposed between an anode and a cathode, and a plurality of charge generation layers for supplying charges to the plurality of stacks, wherein a thickness of the charge generation layer disposed relatively close to the anode is relatively larger than a thickness of the charge generation layer disposed relatively close to the cathode.