Claims
- 1. A method of forming a novel organic electroluminescent display device which comprises the steps of:forming a transparent anode of a plurality of stripes on a transparent supporting substrate; providing a plurality of separation walls between the stripes of the anode and over the transparent supporting substrate, wherein the separation walls have a height which is higher than a sum of a thickness of the anode and a predetermined value; forming an organic electroluminescent layer having a thickness corresponding to the above predetermined value over the anode and the separation walls; and placing a shadow mask having a plurality of slits on and in securely contact with top surfaces of the separation walls so that a metal material is evaporated through the shadow mask to selectively form a cathode of a plurality of stripes over the organic electroluminescent layer.
- 2. The method as claimed in claim 1, wherein the shadow mask has a large number of stripe-shaped openings, each of which extends continuously over the substrate.
- 3. The method as claimed in claim 1, wherein that the shadow mask has a large number of stripe-shaped openings, each of which comprises a plurality of segments separated by gaps and aligned over the substrate.
- 4. The method as claimed in claim 1, wherein the shadow mask with a magnetic field generator which generates a magnetic field is used for forcing the shadow mask in contact securely with the tops of the separation walls.
- 5. The method as claimed in claim 1, wherein the separation walls are made by a photo-resist technique using a photo-resist film.
Priority Claims (1)
Number |
Date |
Country |
Kind |
9-037439 |
Feb 1997 |
JP |
|
RELATED APPLICATION
This application is a division of application Ser. No. 09/027,557 filed on Feb. 23, 1998, is now U.S. Pat. No. 6,326,726 the entire contents of which are hereby incorporated by reference.
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