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:
Jan. 09, 2018
Filed:
Mar. 11, 2015
Applicant:
Samsung Electronics Co., Ltd., Suwon-si, KR;
Inventors:
Zhaoqun Zhou, Bridgewater, NJ (US);
Peter T. Kazlas, Sudbury, MA (US);
Assignee:
SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/32 (2006.01); H01L 51/52 (2006.01); H01L 33/06 (2010.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 27/3225 (2013.01); H01L 33/06 (2013.01); H01L 51/5044 (2013.01); H01L 51/5056 (2013.01); H01L 51/5088 (2013.01); H01L 51/5278 (2013.01); H01L 51/502 (2013.01); H01L 2251/5369 (2013.01);
Abstract
A light emitting device comprising: a pair of electrodes; two or more light emitting elements disposed between the electrodes in a stacked arrangement, wherein a light emitting element comprises a layer comprising an emissive material; and a charge generation element disposed between adjacent light emitting elements in the stacked arrangement, the charge generation element comprising a first layer comprising an inorganic n-type semiconductor material, and a second layer comprising a hole injection material. A charge generation element is also disclosed.