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:
Jul. 18, 2000
Filed:
Oct. 13, 1998
Mitsufumi Codama, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
In a process for the fabrication of an organic EL display device having, on the surface of a substrate 1, a terminal electrode 3, a first electrode 2, an insulating layer 4 covering a portion of the first electrode 2, an organic functional layer 5 including a light-emitting layer, and a second electrode 6 including an interconnect layer 62, after forming the first electrode 2, the terminal electrode 3, and the insulating layer 4, a mask 8 for restricting the layer-forming region is placed on the substrate 1, then the organic functional layer 5 is formed, following which the interconnect layer 62 is formed by a process having a better step coverage than the process used to form the organic functional layer 5 such as to bring the interconnect layer 62 into contact with at least part of the terminal electrode 3. When the organic functional layer 5 and the second electrode 6 are formed in succession, the second electrode 6 and the terminal electrode 3 can be reliably connected without changing the mask 8. Moreover, the organic functional layer 5 and an 'electrode layer 61 containing a low work function metal' within the second electrode 6 can be protected from moisture, oxygen, and organic solvents.