IDiyas

For the Inventor, By the Inventor

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.:

US 10374183 B1

PDFFull Text
Date of Patent:
Aug. 06, 2019

Filed:

Aug. 23, 2016

Organic light emitting display device having layer to control charge transfer

Applicant:

Lg Display Co., Ltd., Seoul, KR;

Inventor:

EunJung Park, Goyang-si, KR;

Assignee:

LG DISPLAY CO., LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Victoria K Hall

Int. Cl.
CPC ...
H01L 51/54 (2006.01); H01L 51/50 (2006.01); H01L 51/52 (2006.01); H01L 27/32 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5012 (2013.01); H01L 27/3209 (2013.01); H01L 51/5004 (2013.01); H01L 51/5044 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 51/5084 (2013.01); H01L 51/5278 (2013.01); H01L 51/0052 (2013.01); H01L 51/0067 (2013.01); H01L 51/0072 (2013.01); H01L 51/0077 (2013.01); H01L 51/0081 (2013.01); H01L 2251/552 (2013.01);
Abstract

Discussed is an organic light emitting display device. The organic light emitting display device may include an anode on a substrate, a first emission part that is disposed on the anode and includes a first emission layer and a first electron transfer layer, a second emission part that is disposed on the first emission part and includes a second emission layer and a second electron transfer layer, and a cathode on the second emission part. At least one among the first electron transfer layer and the second electron transfer layer may include a first material and a second material, and an absolute value of a LUMO energy level of the first material may be larger than an absolute value of a LUMO energy level of the second material.

Find Patent Forward Citations

Loading…