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US 2003/0170929 A1Published application
Robust electrode patterning in OLED devices
AssigneeOSRAM Opto Semiconductors GmbH
InventorsEwald Guenther, Hooi Bin Lim, Ed Vin Soh, Hou Siong Tan, Hagen Klausmann
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Abstract
A method of fabricating OLED devices is disclosed. A conductive layer is patterned by pillars to form electrodes in the device, wherein portions of the pillars have at least 2 sub-rows to prevent shorting of adjacent electrodes. In one embodiment, the ends of the pillars are split into at least 2 sub-rows.
Claims18
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, the first and second conductive layers serving as first and second electrodes;
- and
- pillars on the substrate for patterning the second conductive layer to form the second electrodes, wherein portions of the pillars are split into at least 2 sub-rows to prevent shorting of adjacent electrodes.
A method for forming an OLED device comprising:
- forming at least one device layer on a substrate;
- patterning the device layer to form pillars, wherein portions of the pillars are split into at least 2 sub-rows;
- and
- depositing a conductive layer on the substrate, wherein the pillars pattern the conductive layer to form electrodes and the sub-rows prevent adjacent electrodes from shorting.
1 more element
Dependencies are inferred from the claim text.