Patent ID: 11973104
Assignee: SEOUL VIOSYS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A light emitting diode pixel for a display, comprising:
a first LED sub-unit;
a second LED sub-unit disposed on a first portion of the first LED sub-unit;
a third LED sub-unit disposed on a second portion of the second LED sub-unit;
a first upper ohmic electrode electrically connected to the first LED sub-unit;
a first bonding layer and a second bonding layer interposed between the first LED sub-unit and the third LED sub-unit;
a first transparent insulation layer interposed between the first LED sub-unit and the second LED sub-unit; and
a second transparent insulation layer interposed between the second LED sub-unit and the third LED sub-unit,
wherein:
each of the first, second, and third LED sub-units comprises a first conductivity type semiconductor layer, a second conductivity type semiconductor layer, and an active layer interposed between the first and second conductivity type semiconductor layers;
a region of the active layer of each of the first, second, and third LED sub-units overlaps one another along one direction;
the first LED sub-unit further includes a third portion of the first LED sub-unit different from the first portion;
the second LED sub-unit further includes a fourth portion of the second LED sub-unit different from the second portion;
each of the first and second bonding layers comprises a conductive material;
the first upper ohmic electrode comprises a pad portion and a projection extending therefrom; and
the pad portion has a substantially rounded shape, and the projection has an elongated shape.