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:
Apr. 16, 2013
Filed:
Jun. 24, 2009
Mitsuyoshi Naito, Osaka, JP;
Tomoyuki Nakayama, Tokyo, JP;
Mitsuyoshi Naito, Osaka, JP;
Tomoyuki Nakayama, Tokyo, JP;
Konica Minolta Holdings, Inc., Tokyo, JP;
Abstract
In the present invention, disclosed is a method of manufacturing an organic electroluminescent element in which at least an anode, a light emission layer and a cathode are laminated, wherein at least one light emission layer possesses two kinds of light-emitting dopants, the method comprising the step of conducting a process in which the organic EL element is subjected to an annealing treatment after forming at least the anode, the at least one light emission layer and the cathode as an element structure. By the method of the present invention, a stably manufacturable organic electroluminescent element exhibiting high light emission efficiency and long lifetime is possible to be prepared, and a white light-emitting organic electroluminescent element is suitably prepared.