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, 2016
Filed:
May. 20, 2013
Udc Ireland Limited, Dublin, IE;
Manabu Tobise, Kanagawa, JP;
Yuichiro Itai, Kanagwa, JP;
Kana Morohashi, Kanagawa, JP;
Shin'ichiro Sonoda, Kanagawa, JP;
Jingbo Li, Kanagawa, JP;
UDC Ireland Limited, Dublin, IE;
Abstract
It is an object of the present invention to provide an organic electroluminescent element with which no light extraction layer needs to be produced separately, which has a transparent electrode that is advantageous in terms of cost and can be formed by a simple film formation process, and which is excellent from the standpoint of light extraction efficiency. The present invention provides an organic electroluminescent element in which a substrate, a first electrode adjacent to this substrate, an organic layer including at least one organic light-emitting layer, and a second electrode adjacent to this organic layer are formed in this order, with this organic electroluminescent element being such that at least one of the aforementioned electrodes is a transparent electrode which is transparent, which contains at least one type of light scattering particles that are transparent and that have a primary particle size of at least 0.5 μm, and which is composed of the aforementioned light scattering particles and a component having a refractive index equal to or higher than the refractive index of the aforementioned organic light-emitting layer.