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:
Jan. 18, 2017
Lg Display Co., Ltd., Seoul, KR;
Taeil Kum, Paju-si, KR;
Gwijeong Cho, Daegu, KR;
KiWoog Song, Goyang-si, KR;
Taeshick Kim, Yongin-si, KR;
LG DISPLAY CO., LTD., Seoul, KR;
Abstract
Provided is a white organic light emitting device which can improve abnormal light emission and efficiency and reliability of the device. A white organic light emitting device according to an exemplary embodiment of the present invention includes: a first light emitting unit including a first emitting layer between a first electrode and a second electrode; a second light emitting unit including a second emitting layer on the first light emitting unit; and a charge generation layer between the first light emitting unit and the second light emitting unit, and a volume of a metal in the charge generation layer is 1.0% or less of the total volume of the charge generation layer.