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. 08, 2015
Filed:
Dec. 23, 2014
Lg Display Co., Ltd., Seoul, KR;
Se Hee Lee, Paju-si, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
An organic light emitting display device includes a first electrode defined into red, green and blue sub-pixel regions; a first light emitting unit disposed on the first electrode and configured with a hole injection layer, a first hole transport layer, a first organic emission layer and a first electron transport layer. The device further includes a second light emitting unit disposed on the first light emitting unit and configured with a second hole transport layer, a second organic emission layer and a second electron transport layer; and a second electrode disposed on the second light emitting unit. A separation between the first organic emission layer and the second organic emission layer is larger than a separation between the first electrode and the first organic emission layer.