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:
Mar. 28, 2017
Filed:
Jan. 21, 2010
Do-hwan Kim, Anyang-si, KR;
Sang-yoon Lee, Seoul, KR;
Kwanghee Lee, Gwangju, KR;
Sung Heum Park, Gwangju, KR;
Shinuk Cho, Santa Barbara, CA (US);
Jae-kwan Lee, Santa Barbara, CA (US);
Alan J. Heeger, Santa Barbara, CA (US);
Do-Hwan Kim, Anyang-si, KR;
Sang-Yoon Lee, Seoul, KR;
Kwanghee Lee, Gwangju, KR;
Sung Heum Park, Gwangju, KR;
Shinuk Cho, Santa Barbara, CA (US);
Jae-Kwan Lee, Santa Barbara, CA (US);
Alan J. Heeger, Santa Barbara, CA (US);
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
The Regents of the University of California, Oakland, CA (US);
Abstract
A light emitting device may include a first electrode on a substrate, a first emission layer on the first electrode, a buffer layer on the first emission layer, a middle electrode on the buffer layer, a second emission layer on the middle electrode, and a second electrode on the second emission layer. The buffer layer may include a material selected from the group consisting of a metal oxide, a polyelectrolyte, and a combination thereof. The first emission layer, buffer layer, middle electrode, and second emission layer may be fabricated using a wet process.