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. 01, 2019
Filed:
Aug. 29, 2014
Lg Display Co., Ltd., Seoul, KR;
Ki-Woog Song, Goyang-si, KR;
Sung-Hoon Pieh, Seoul, KR;
Seung-Ryong Joung, Gwangmyeong-si, KR;
Tae-Il Kum, Paju-si, KR;
So-Yeon Ahn, Seoul, KR;
Tae-Shick Kim, Yongin-si, KR;
LG DISPLAY CO., LTD., Seoul, KR;
Abstract
A white organic light emitting diode (OLED) includes a first electrode and a second electrode facing each other; a first charge generation layer and a second charge generation layer between the first and second electrodes; a first light emitting unit including a first emitting material layer emitting a first color, wherein the first light emitting unit is located between the first electrode and the first charge generation layer; a second light emitting unit including a second emitting material layer emitting a second color, wherein the second light emitting unit is located between the first charge generation layer and the second charge generation layer; and a third light emitting unit including a third emitting material layer emitting the second color, wherein the third light emitting unit is located between the second charge generation layer and the second electrode.