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. 24, 2019
Filed:
Mar. 20, 2018
Lg Display Co., Ltd., Seoul, KR;
Mi-Young Han, Paju-si, KR;
Chang Wook Han, Seoul, KR;
Tae Il Kum, Paju-si, KR;
Gwi Jeong Cho, Daegu, KR;
Tae Shick Kim, Yongin-si, KR;
Se Ung Kim, Seoul, KR;
Hee Dong Choi, Uiwang-si, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
Disclosed is a white organic light emitting device for enhancing emission efficiency and a color viewing angle or a color reproduction rate. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, a second emission part on the first emission part, the second emission part having a second emission layer, and a third emission part on the second emission part, the third emission part having a third emission layer. At least two emission layers of the first to third emission layers emit lights having a same color to enhance emission efficiency and a color viewing angle, and the at least two emission layers are adjacent to each other.