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:
Aug. 15, 2017
Filed:
Jun. 26, 2015
Samsung Display Co., Ltd., Yongin, Gyeonggi-Do, KR;
Jaegoo Lee, Yongin-si, KR;
Seil Kim, Hwaseong-si, KR;
SAMSUNG DISPLAY CO., LTD., Yongin, Gyeonggi-Do, JP;
Abstract
A white organic light emitting diode including a first electrode; a second electrode facing the first electrode; a charge generation region between the first and second electrodes; a first emitting layer to emit light of a first color, the first emitting layer being between the first electrode and the charge generation region; and a second emitting layer to emit light of a second color, the second emitting layer being between the second electrode and the charge generation region, wherein the charge generation region includes a hole generation region to generate holes, an electron generation region to generate electrons, and a depletion prevention region to prevent a depletion region from being generated by the holes and the electrons, the depletion prevention region being between the hole generation region and the electron generation region.