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US 10,950,591 B2Granted
Display with embedded pixel driver chips
AssigneeApple Inc.
InventorHsin-Hua Hu
Life of this patent
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Abstract
Embodiments describe a display integration scheme in which an array of pixel driver chips embedded front side up in an insulator layer. A front side redistribution layer (RDL) spans across and is in electrical connection with the front sides of the array of pixel driver chips, and an array of light emitting diodes (LEDs) is bonded to the front side RDL. The pixel driver chips may be located directly beneath the display area of the display panel.
Claims18
A display panel comprising:
- an array of pixel driver chips embedded front side up in an insulator layer, wherein each pixel driver chip comprises digital driving circuit;
- a front side redistribution layer (RDL) spanning across and in electrical connection with front sides of the array of pixel driver chips, wherein the front side RDL includes data routing connected to the array of pixel driver chips;
- and
- an array of light emitting diodes (LEDs) on the front side RDL;
- wherein each pixel driver chip is to switch and drive a corresponding group of LEDs in the array of LEDs, and each pixel driver chip is characterized by pixel driver chip area in x-y dimensions that is directly underneath an entire LED area in the x-y dimensions for each of a corresponding plurality of LEDs of the corresponding group of LEDs for the pixel driver chip.
2 more elements
Dependencies are inferred from the claim text.