Patent ID: 11955469
Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A method for making a micro LED display panel, comprising:
forming a blue LED layer, the blue LED layer comprising a plurality of blue micro LEDs spaced apart from each other, each of the plurality of blue micro LEDs defining a blue sub-pixel;
forming a green LED layer, the green LED layer comprising a plurality of green micro LEDs spaced apart from each other, each of the plurality of green micro LEDs defining a green sub-pixel;
forming a red LED layer, the red LED layer comprising a plurality of red micro LEDs spaced apart from each other, each of the plurality of red micro LEDs defining a red sub-pixel; and
stacking the blue LED layer, the green LED layer, and the red LED layer one by one along a direction; wherein each of the plurality of blue micro LEDs, each of the plurality of green micro LEDs, and each of the plurality of red micro LEDs are staggered from each other;
wherein the red LED layer comprises a third transparent conductive layer, a third light emitting layer, and a third electrode layer stacked one by one along the depth direction; the third light emitting layer is between the third transparent conductive layer and the third electrode layer; the third light emitting layer comprises an N-type doped inorganic light emitting layer, an active layer, and a P-type doped inorganic light emitting layer stacked one by one along the depth direction; the active layer is between the P-type doped inorganic light emitting layer and the N-type doped inorganic light emitting layer; the N-type doped inorganic light emitting layer comprises a plurality of N-type doped units spaced apart from each other; the third electrode layer comprises a plurality of electrodes spaced apart from each other; each of the plurality of N-type doped units is coupled to the third transparent conductive layer; the P-type doped inorganic light emitting layer is coupled to each of the plurality of electrodes; a projection of each of the plurality of N-type doped units on the third electrode layer overlaps with one of the plurality of electrodes; a portion of the red LED layer corresponding to one of the plurality of N-type doped units defines one red sub-pixel.