Light emitting device and display apparatus having the same
AssigneeSeoul Viosys Co., Ltd.
InventorsSeom Geun Lee, Seong Kyu Jang, Yong Woo Ryu
Life of this patent
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Abstract
A stacked light emitting device includes a first LED stack, a second LED stack disposed under the first LED stack, a third LED stack disposed under the second LED stack, a third-1 connector and a third-2 connector disposed between the second LED stack and the third LED stack, and a plurality of pads disposed over the first LED stack, and electrically connected to the first, second, and third LED stacks. Each of the first, second, and third LED stacks has a light generation region and a peripheral region disposed around the light generation region.
Claims20
A stacked light emitting device, comprising:
- a first LED stack;
- a second LED stack disposed under the first LED stack;
- a third LED stack disposed under the second LED stack;
- each of the first LED stack, the second LED stack, and the third LED stack has a light generation region and a peripheral region disposed around the light generation region;
- a plurality of pads disposed over the first LED stack;
- and
- a third-1 connector and a third-2 connector disposed on the third LED stack, wherein:
- the third-1 connector and the third-2 connector are electrically connected to a first conductivity type semiconductor layer and a second conductivity type semiconductor layer of the light generation region of the third LED stack, respectively, and
- the third-1 connector, the third-2 connector, or both cover a side surface of the peripheral region of the third LED stack,
- wherein, in each of the first LED stack, the second LED stack and the third LED stack, the peripheral region is arranged to surround the light generation region on a horizontal plane.
A display apparatus, comprising:
- a circuit board;
- and
- a plurality of light emitting devices mounted on the circuit board,
- the plurality of light emitting devices comprising:
- a first LED stack;
- a second LED stack disposed under the first LED stack;
- a third LED stack disposed under the second LED stack;
- each of the first LED stack, the second LED stack, and the third LED stack has a light generation region and a peripheral region disposed around the light generation region;
- a plurality of pads disposed over the first LED stack, and electrically connected to the first LED stack, the second LED stack, and the third LED stack, the plurality of pads bonded toward the circuit board;
- a third-1 connector and a third-2 connector disposed on the third LED stack, wherein:
- the third-1 connector and the third-2 connector are electrically connected to a first conductivity type semiconductor layer and a second conductivity type semiconductor layer of the light generation region of the third LED stack, respectively,
- at least one of the third-1 connector and the third-2 connector covers a side surface of the peripheral region of the third LED stack,
- wherein, in each of the first LED stack, the second LED stack and the third LED stack, the peripheral region is arranged to surround the light generation region on a horizontal plane.
Dependencies are inferred from the claim text.