Organic electroluminescent display device and method of manufact

Details Organic electroluminescent display device and method of manufact Organic electroluminescent display device and method of manufact

1998-10-13

2000-07-18

Patel, Nimeshkumar D.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313503, 445 9, 445 24, H01J 162

Patent

active

060911964

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.

REFERENCES:
patent: 6010742 (2000-01-01), Tanabe et al.

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