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US 2004/0104385 A1Published application
Electrode Patterning in OLED Devices
AssigneeOsram Opto Semiconductors (Malaysia) Sdn. Bhd
InventorsHooi Bin Lim, Hagen Klausmann, Bernd Fritz
Life of this patent
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Abstract
An OLED device having pillars with a cross section that is wider on the top. The pillars structure a conductive layer during deposition into distinct portions located between the pillars and on the top of the pillars. In one embodiment, the grooves between the pillars extend outside the electrode region to prevent shorting of adjacent electrodes.
Claims16
An OLED device comprising:
- a substrate having an active region defined thereon, the active region comprises pixels;
- and
- pillars along a first direction on a substrate, wherein the pillars comprise a tapered profile and grooves between the pillars, the pillars extend outside an active region of the substrate to prevent electrical shorting.
A flexible OLED device comprising:
- a flexible substrate having an active region defined thereon, the active region comprises OLED pixels;
- and
- pillars along a first direction on a substrate, wherein the pillars comprise a tapered profile and grooves between the pillars, the pillars extend outside an active region of the substrate to prevent electrical shorting.
An OLED device comprising:
- a substrate having an active region defined thereon, the active region comprises OLED pixels, wherein an organic functional layer of the OLED pixels is formed by depositing a solution having organic functional material dissolved in a solvent;
- and
- pillars along a first direction on a substrate, wherein the pillars are inert to the solvent and comprise a tapered profile and grooves between the pillars, the pillars extend outside an active region of the substrate to prevent electrical shorting.
Dependencies are inferred from the claim text.