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:
Dec. 29, 2015
Filed:
Dec. 17, 2013
Lg Display Co., Ltd., Seoul, KR;
Tae Sun Yoo, Goyang-Si, KR;
Hwa Kyung Kim, Seoul, KR;
Hong Seok Choi, Seoul, KR;
Jae Il Song, Paju-Si, KR;
Mi Young Han, Paju-Si, KR;
Shin Han Kim, Goyang-Si, KR;
Hye Min Oh, Seoul, KR;
LG DISPLAY CO., LTD., Seoul, KR;
Abstract
A white organic light emitting device includes: first and second electrodes formed to face each other on a substrate; a first stack configured with a hole injection layer, a first hole transportation layer, a first light emission layer and a first electron transportation layer which are stacked between the first and second electrodes; a second stack configured with a second hole transportation layer, a second light emission layer, a third light emission layer, a second electron transportation layer and an electron injection layer which are stacked between the first stack and the second electrode; and a charge generation layer interposed between the first and second stacks and configured to adjust a charge balance between the two stacks.