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:
Nov. 25, 2008
Filed:
Mar. 22, 2005
Chang-su Seo, Suwon-si, KR;
Moon-hee Park, Busan-si, KR;
Chang-Su Seo, Suwon-si, KR;
Moon-Hee Park, Busan-si, KR;
Samsung SDI Co., Ltd., Suwon, KR;
Abstract
The present invention relates to a top-emission type organic electroluminescence display device, more particularly, to a top-emission type organic electroluminescence display device comprising double passivation layers of an inorganic insulation layer and an organic planarization layer formed on an upper part of a thin film transistor comprising a semiconductor layer, gate electrode and source/drain electrodes on a substrate; a reflection layer formed between the double passivation layers; and a first electrode layer formed of a transparent material and formed on a reflection layer. Furthermore, a top-emission type organic electroluminescence display device additionally comprises a reflection layer between the passivation layers and the first electrode layer to maximize reflection efficiency. Additionally, luminance between pixels is uniformed by stabilizing contact resistance between the electrodes during driving of the display device with the source/drain electrodes of the thin film transistor being directly contacted with the transparent electrode layer.