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. 14, 2015
Filed:
Feb. 14, 2012
Applicant:
Shuichi Sassa, Ibaraki, JP;
Inventor:
Shuichi Sassa, Ibaraki, JP;
Assignee:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 51/56 (2006.01); H01L 51/00 (2006.01); H05B 33/10 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/56 (2013.01); H01L 51/0026 (2013.01); H01L 51/5092 (2013.01); H01L 51/003 (2013.01); H01L 51/0039 (2013.01); H05B 33/10 (2013.01);
Abstract
A method for manufacturing an organic electroluminescent element including, in the following order, an anode, a light-emitting layer, an electron injection layer, and a cathode, the method including the steps of: (A) forming the anode; (B) forming the light-emitting layer; (C) forming the electron injection layer; and (D) forming the cathode, in which the step (C) includes (i) applying an application liquid containing an ionic polymer to form a thin film, (ii) heating the thin film formed, (iii) storing a partially finished organic electroluminescent element obtained in (ii), and thereafter, (iv) heating the thin film again.