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, second, and third LED stacks 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 between the second LED stack and 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.
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, second, and third LED stacks 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, second, and third LED stacks, the plurality of pads bonded toward the circuit board;
- a third-1 connector and a third-2 connector disposed between the second LED stack and 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.
Dependencies are inferred from the claim text.