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. 29, 2015
Filed:
May. 14, 2012
Won-jun Song, Yongin, KR;
Mie-hwa Park, Yongin, KR;
Kwan-hee Lee, Yongin, KR;
Sam-il Kho, Yongin, KR;
Sun-hee Lee, Yongin, KR;
Won-Jun Song, Yongin, KR;
Mie-Hwa Park, Yongin, KR;
Kwan-Hee Lee, Yongin, KR;
Sam-Il Kho, Yongin, KR;
Sun-Hee Lee, Yongin, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
An organic light-emitting diode including a first electrode; a second electrode facing the first electrode; an emission layer interposed between the first electrode and the second electrode; a first hole transport layer including a first hole transporting compound; a second hole transport layer including a second hole transporting compound, the first and second hole transport layers being interposed between the first electrode and the emission layer; an electron transport layer interposed between the emission layer and the second electrode; a first mixing layer interposed between the first electrode and the first hole transport layer, contacting the first hole transport layer, and including the first hole transporting compound and a first cyano group-containing compound; and a second mixing layer interposed between the first electrode and the second hole transport layer, contacting the second hole transport layer, and including the second hole transporting compound and a second cyano group-containing compound.