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. 13, 2010
Filed:
May. 08, 2007
Applicant:
Minoru Kumagai, Tokyo, JP;
Inventor:
Minoru Kumagai, Tokyo, JP;
Assignee:
Casio Computer Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D 5/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A bank for defining the regions in which pixels are formed has a stacked structure including: a base layer on the low level which also serves as an interlayer insulating film between the pixel forming regions; a middle bank layer on the middle level which serves to improve the fixation of an organic compound material (i.e., improve the uniformity of the film thickness of a positive hole transporting layer and an electron-transporting light emitting layer) in forming an organic EL layer; and a bank metal layer on the upper level which is made of a conductive material and serves also as a common voltage line (cathode line).