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:
Oct. 10, 2017
Filed:
Aug. 21, 2014
Lg Display Co., Ltd., Seoul, KR;
Shin-Han Kim, Seoul, KR;
Hwa-Kyung Kim, Seoul, KR;
Hong-Seok Choi, Seoul, KR;
Mi-Young Han, Paju-si, KR;
Hye-Min Oh, Seoul, KR;
Tae-Shick Kim, Yongin-si, KR;
Seung-Hyun Kim, Gwangju, KR;
LG DISPLAY CO., LTD., Seoul, KR;
Abstract
Disclosed herein is a white organic light emitting device including various emission layers with improved luminous efficiency, an increased color viewing angle, and low power consumption. The white organic light emitting device includes at least two charge generation layers and at least three stacks between a first electrode and a second electrode. The first stack includes an emission layer having a wavelength range of about 440 to about 470 nm, the second stack includes an emission layer having a wavelength range of about 530 to about 570 nm, and the third stack includes an emission layer having a wavelength range of about 590 to about 620 nm and an emission layer having a wavelength range of about 440 to about 470 nm.