Patent ID: 11967589
Assignee: JADE BIRD DISPLAY (SHANGHAI) LIMITED
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A micro-light emitting diode (LED) pixel unit, comprising,
a first color LED structure, formed on an IC substrate, wherein the first color LED structure comprises a first light emitting layer, a first bottom reflective layer formed on a bottom of the first light emitting layer, and a first top reflective layer formed on top of the first light emitting layer;
a first bonding metal layer, formed at a bottom of the first color LED structure, and configured to bond the IC substrate and the first color LED structure;
a second bonding metal layer, formed on a top of the first color LED structure;
a second color LED structure, formed on the second bonding metal layer, wherein the second color LED structure comprises a second light emitting layer, a second bottom reflective layer formed on a bottom of the second light emitting layer, and a second top reflective layer formed on top of the second light emitting layer;
a top electrode layer, covering the first color LED structure and the second color LED structure and electrically contacting with the first color LED structure and the second color LED structure, wherein the first color LED structure is further electrically connected to a first driver circuit and the second color LED structure is further electrically connected to a second driver circuit; and
a reflective cup, surrounding the first color LED structure and the second color LED structure;
wherein:
light emitted from the first light emitting layer is reflected by and propagated substantially in a horizontal direction between the first bottom reflective layer and the first top reflective layer before arriving at and being reflected upward by the reflective cup; and
light emitted from the second light emitting layer is reflected by and propagated substantially in a horizontal direction between the second bottom reflective layer and the second top reflective layer before arriving at and being reflected upward by the reflective cup.