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:
Sep. 29, 2015
Filed:
Dec. 10, 2012
Electronics and Telecommunications Research Institute, Daejeon, KR;
Doo-Hee Cho, Daejeon, KR;
Jin Wook Shin, Incheon, KR;
Jeong Ik Lee, Gyeonggi-do, KR;
Hye Yong Chu, Daejeon, KR;
Jun-Han Han, Daejeon, KR;
Joo Hyun Hwang, Seoul, KR;
Seung Koo Park, Daejeon, KR;
Jaehyun Moon, Daejeon, KR;
Nam Sung Cho, Daejeon, KR;
Jin Woo Huh, Daejeon, KR;
Chul Woong Joo, Seoul, KR;
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
Abstract
An organic light emitting device is provided that includes a substrate; an embossing layer provided on the substrate; a planarization layer provided on the embossing layer; a first electrode provided on the planarization layer; an organic light emitting layer provided on the first electrode; and a second electrode provided on the organic light emitting layer. The planarization layer may include a first planarization layer provided on the embossing layer; and a second planarization layer provided on the first planarization layer. The embossing layer may have a refractive index ranging from about 1.3 to about 1.5. The planarization layer may include a first planarization layer having a surface roughness of about 10 nm to about 50 nm and a refractive index that ranges from about 1.8 to about 2.5; and a second planarization layer provided on the first planarization layer and having a surface roughness of less than about 10 nm.