OLED lighting device with short tolerant structure
First Claim
Patent Images
1. 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 an unpatterned blanket layer of a conductive material such that the blanket 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.
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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.
37 Citations
24 Claims
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1. A method comprising:
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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 an unpatterned blanket layer of a conductive material such that the blanket 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method comprising:
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obtaining a substrate having a patterned first electrode, the patterned first electrode comprising a plurality of electrode regions; depositing organic emissive material over the patterned first electrode; depositing a second electrode over the organic emissive material; disposing a bus line over the substrate; wherein each of the plurality of electrode regions is electrically connected to one of the plurality of pixels, and connected to the bus line through one of the plurality of fuses in the OLED panel; 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. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification