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:
Jul. 07, 2015
Filed:
Sep. 30, 2013
Samsung Display Co., Ltd., Yongin, Gyeonggi-Do, KR;
Min-Woo Lee, Yongin, KR;
Young-Mo Koo, Yongin, KR;
Jae-Goo Lee, Yongin, KR;
Woo-Sik Jeon, Yongin, KR;
Samsung Display Co., Ltd., Giheung-Gu, Yongin, Gyeonggi-Do, KR;
Abstract
An organic light emitting diode device includes a first electrode and a second electrode facing each other, a charge-generating layer interposed between the first electrode and the second electrode, a first light emitting unit that emits blue and is interposed between the first electrode and the charge-generating layer, and a second light emitting unit that emits white by combining the blue and is interposed between the second electrode and the charge-generating layer. The first light emitting unit includes a blue emission layer, a first charge transport layer disposed on one side of the blue emission layer and including an alkali metal complex compound and a first charge transport material, and a second charge transport layer disposed on one side of the first charge transport layer and including the alkali metal complex compound and a second charge transport material that has different charge mobility from the first charge transport material.