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US 2003/0227255 A1Published application
Patterning of electrodes in oled devices
AssigneesInstitute of Materials Research and Engineering, OSRAM Opto Semiconductors GmbH
InventorsMark Auch, Ewald Guenther, Soo Jin Chua
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Abstract
An OLED device having pillars, wherein the pillars serve to pattern a conductive layer during deposition. The profile of the pillars covers the edges of at least one functional layer to protect it from exposure to potentially deleterious substances.
Claims30
A device comprising:
- a substrate having a plurality of OLED cells, the OLED cells comprising at least one organic layer formed between first and second conductive layers;
- and
- pillars on the substrate for patterning the second conductive layer, the pillars covering the edges of the second conductive layer.
A method for forming an OLED device comprising:
- forming a first conductive layer on a substrate;
- forming pillars on the substrate;
- depositing at least one organic layer on the substrate;
- and
- depositing a second conductive layer on the substrate, wherein the pillars serve to pattern the second conductive layer and cover the edges of the second conductive layer.
2 more elements
Dependencies are inferred from the claim text.