Light emitting diode display with redundancy scheme
First Claim
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1. A display panel with redundancy scheme comprising:
- a display substrate including a pixel area that includes an array of subpixels, an array of redundant pairs of landing areas, an array of redundant LED bonding site pairs, and an array of redundant LED device pairs;
wherein each subpixel in the array of subpixels is designed for a redundant primary color emission, and each subpixel includes a redundant pair of landing areas and a corresponding LED bonding site pair on the redundant pair of landing areas to receive a corresponding redundant LED device pair;
wherein the array of subpixels includes an array of first subpixels designed for a first primary color emission, an array of second subpixels designed for a second primary color emission different from the first primary color emission, and an array of third subpixels designed for a third primary color emission different from the first and second primary color emissions;
circuitry to switch and drive the array of subpixels; and
one or more LED device irregularities among the array of redundant LED device pairs, wherein each corresponding landing area containing an LED device irregularity is electrically disconnected from the circuitry.
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Abstract
A display panel and method of manufacture are described. In an embodiment, a display substrate includes a pixel area and a non-pixel area. An array of subpixels and corresponding array of bottom electrodes are in the pixel area. An array of micro LED devices are bonded to the array of bottom electrodes. One or more top electrode layers are formed in electrical contact with the array of micro LED devices. In one embodiment a redundant pair of micro LED devices are bonded to the array of bottom electrodes. In one embodiment, the array of micro LED devices are imaged to detect irregularities.
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Citations
17 Claims
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1. A display panel with redundancy scheme comprising:
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a display substrate including a pixel area that includes an array of subpixels, an array of redundant pairs of landing areas, an array of redundant LED bonding site pairs, and an array of redundant LED device pairs; wherein each subpixel in the array of subpixels is designed for a redundant primary color emission, and each subpixel includes a redundant pair of landing areas and a corresponding LED bonding site pair on the redundant pair of landing areas to receive a corresponding redundant LED device pair; wherein the array of subpixels includes an array of first subpixels designed for a first primary color emission, an array of second subpixels designed for a second primary color emission different from the first primary color emission, and an array of third subpixels designed for a third primary color emission different from the first and second primary color emissions; circuitry to switch and drive the array of subpixels; and one or more LED device irregularities among the array of redundant LED device pairs, wherein each corresponding landing area containing an LED device irregularity is electrically disconnected from the circuitry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification