Micro-led micro display chip and preparation method

Abstract

The application relates to the technical field of display chips, and discloses a Micro-LED micro display chip and a preparation method thereof. The chip comprises a driving substrate, a light-emitting structure, a grid network and a color conversion structure. The light-emitting structure comprises a plurality of LED platforms which are arranged at intervals on the driving substrate and are driven individually. The grid network comprises a plurality of metal dielectric rings which surround part of the LED platforms. The color conversion structure comprises first units which are independently arranged on part of the LED platforms which are not surrounded by the metal dielectric rings, second units which are arranged on the remaining regions which are not surrounded by the metal dielectric rings, and third units which are filled in the metal dielectric rings. Full-color display is realized when one pixel unit comprises at least one LED platform corresponding to the first units, at least one LED platform corresponding to the second units and at least one LED platform corresponding to the third units. The arrangement mode of the metal dielectric rings is simplified to remove the resin support material, the utilization rate of the pixel light-emitting area is improved, and the brightness and the service life are improved.

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