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US 10,096,592 B2Granted
OLED lighting device with short tolerant structure
AssigneeUniversal Display Corporation
InventorsMichael Hack, Ruiqing Ma, Emory Krall
Life of this patent
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Abstract
An OLED panel having a plurality of OLED circuit elements is provided. Each OLED circuit element may include a fuse or other component that can be ablated or otherwise opened to render the component essentially non-conductive. Each OLED circuit element may comprise a pixel that may include a first electrode, a second electrode, and an organic electroluminescent (EL) material disposed between the first and the second electrodes. Each of the OLED circuit elements may not be electrically connected in series with any other of the OLED circuit elements.
Claims12
A method comprising:
- obtaining a substrate having a first electrode;
- depositing organic emissive material over the first electrode;
- depositing a plurality of physically segmented second electrodes over the organic emissive material;
- depositing insulating material over the physically segmented second electrodes, wherein a portion of each of the second electrodes remains exposed through the insulating material;
- depositing a conductive material such that the layer of conductive material electrically connects to the portion of each of the second electrodes that remains exposed through the insulating material, to form a plurality of pixels, each pixel being electrically connected to a fuse that limits current to the pixel;
- selecting a plurality of fuses in the OLED panel;
- and
- applying energy to each fuse of the selected plurality of fuses to cause the fuse to be opened.
5 more elements
Dependencies are inferred from the claim text.