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:
Feb. 28, 2012
Filed:
Aug. 19, 2009
Yong-tak Kim, Suwon-si, KR;
Jong-hyuk Lee, Suwon-si, KR;
Won-jong Kim, Suwon-si, KR;
Joon-gu Lee, Suwon-si, KR;
Jin-baek Choi, Suwon-si, KR;
Yong-Tak Kim, Suwon-si, KR;
Jong-Hyuk Lee, Suwon-si, KR;
Won-Jong Kim, Suwon-si, KR;
Joon-Gu Lee, Suwon-si, KR;
Jin-Baek Choi, Suwon-si, KR;
Samsung Mobile Display Co., Ltd., Yongin, KR;
Abstract
An organic light emitting display includes an anode; an organic layer on the anode; and a cathode on the organic layer. The cathode includes a first region and a second region which are sequentially disposed on the organic layer in parallel. The first and second regions are formed by doping a metal oxide on an indium oxide matrix. The doping density of the metal oxide of the first region is greater than that of the second region, the metal oxide of the first region has a density gradient, and the density of the metal oxide in a boundary surface of the first and second regions is the same. An organic light emitting display according to the present invention can increase light emitting efficiency without using a resonance structure.