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:
Jun. 21, 2005
Filed:
Mar. 13, 2003
Su-bin Song, Suwon, KR;
Jun-sik OH, Yongin, KR;
Han-ju Lee, Seongnam, KR;
Sang-hyun Ju, Seoul, KR;
Samsung SDI Co., Ltd., Suwon, KR;
Abstract
An organic electroluminescence device is described and includes a transparent substrate with a first electrode formed on the top surface of the transparent substrate in a predetermined pattern. The first electrode is transparent. An organic layer includes a hole injecting layer, a hole transporting layer, an emitting layer, and an electron transporting layer. They are sequentially stacked on the top surface of the first electrode. A second electrode is formed on the top surface of the organic layer in a predetermined pattern. The distance from the top surface of the hole transporting layer to the bottom surface of the second electrode ranges from about 350 Å to about 450 Å such that the color purity and brightness of blue light is optimized. Accordingly, the organic electroluminescence device increases the color purity and brightness of blue light, thereby providing an image having excellent picture quality.