LED display apparatus
A display apparatus including a display substrate, a plurality of light emitting devices disposed on the display substrate, at least one of the light emitting devices including a first LED sub-unit, a second LED sub-unit disposed on the first LED sub-unit, and a third LED sub-unit disposed on the second LED sub-unit, and a molding layer covering side surfaces of the light emitting devices and exposing upper surfaces thereof, in which the third LED sub-unit is disposed closer to an upper surface of the light emitting device than the first LED sub-unit.
1 . A light emitting device, comprising:
a support substrate;
a plurality of light emitters disposed on the support substrate, each of the light emitters including:
a first type layer;
a second type layer disposed on the first type layer; and
a third type layer disposed on the second type layer;
a plurality of light transparent insulators, each of which is disposed over a respective one of the plurality of light emitters; and
a contiguous polymer layer disposed between adjacent light emitters of the plurality of light emitters, wherein
the contiguous polymer layer has partially removed regions to expose an upper surface of each of the light emitters,
each of the light transparent insulators is disposed in a region corresponding to each respective one of the partially removed regions, and
a top surface of each of the light transparent insulators is higher than a top surface of each respective one of the light emitters, each respective one of the light emitters being disposed between the support substrate and the corresponding light transparent insulator, a lowest surface of each of the light transparent insulators being higher than a bottom surface of the first type layer of each respective one of the light emitters.
2 . The light emitting device of claim 1 , wherein the contiguous polymer layer reflects light emitted from the light transparent insulators.
3 . The light emitting device of claim 1 , wherein a viewing angle of light reflected by the contiguous polymer layer is different from a viewing angle of light emitted from the light transparent insulators.
4 . The light emitting device of claim 1 , wherein
each of the light emitters further includes:
a first electrode electrically connected to the first type layer; and
a second electrode electrically connected to the third type layer, and
the first electrode and the second electrode are positioned corresponding to the partially removed regions.
5 . The light emitting device of claim 1 , wherein the light emitters are positioned corresponding to the partially removed regions.
6 . The light emitting device of claim 1 , wherein each of the light transparent insulators has a pattern for increasing extraction efficiency of light generated from the second type layer.
7 . The light emitting device of claim 1 , wherein the light emitters are arranged in an n×m arrangement, in which n and m are natural numbers.
8 . A light emitting device, comprising:
a support substrate;
a plurality of light emitters disposed on the support substrate, each of the light emitters including:
a first type layer including gallium;
a second type layer disposed on the first type layer and including gallium;
a third type layer disposed on the second type layer and including gallium;
a first electrode electrically connected to the first type layer; and
a second electrode electrically connected to the second type layer;
a plurality of light transparent insulators, each of which is disposed on a respective one of the second type layers of each of the plurality of light emitters; and
a contiguous polymer layer disposed between adjacent light emitters of the plurality of light emitters, wherein
the contiguous polymer layer has partially removed regions to expose an upper surface of each of the light emitters,
the first electrode and the second electrode are disposed corresponding to the partially removed regions, and
a top surface of each of the light transparent insulators is higher than a top surface of each respective one of the light emitters, each respective one of the light emitters being disposed between the support substrate and the corresponding light transparent insulator, a lowest surface of each of the light transparent insulators being higher than a bottom surface of the first type laver of each respective one of the light emitters.
9 . The light emitting device of claim 8 , wherein the contiguous polymer layer reflects light emitted from the light transparent insulators.
10 . The light emitting device of claim 8 , wherein a viewing angle of light reflected by the contiguous polymer layer is different from a viewing angle of light emitted from the light transparent insulators.
11 . The light emitting device of claim 8 , wherein the light emitters are positioned corresponding to the partially removed regions.
12 . The light emitting device of claim 8 , wherein each of the light transparent insulators are positioned in a region corresponding to each respective one of the partially removed regions.
13 . The light emitting device of claim 8 , wherein the light emitters are arranged in an n×m arrangement, in which n and m are natural numbers.
14 . A light emitting device, comprising:
a support substrate;
a plurality of light emitters disposed on the support substrate, each of the light emitters including:
a first semiconductor layer; and
a second semiconductor layer disposed on the first semiconductor layer;
a plurality of light transparent insulators, each of which is disposed on the second semiconductor layer of each respective one of the plurality of light emitters; and
a contiguous polymer layer disposed between adjacent light emitters of the light emitters, wherein
the contiguous polymer layer has partially removed regions to expose an upper surface of each of the light emitters,
each of the light emitters are disposed in a region corresponding to each respective one of the partially removed regions, and
a top surface of the each of the light transparent insulators is higher than a top surface of each respective one of the light emitters, each respective one of the light emitters being disposed between the support substrate and the corresponding light transparent insulator, a lowest surface of each of the light transparent insulators being higher than a bottom surface of the first type layer of each respective one of the light emitters.
15 . The light emitting device of claim 14 , wherein the contiguous polymer layer reflects light emitted from the light transparent insulators.
16 . The light emitting device of claim 14 , wherein a viewing angle of light reflected by the contiguous polymer layer is different from a viewing angle of light emitted from the light transparent insulators.
17 . The light emitting device of claim 14 , wherein the light transparent insulators are positioned in a region corresponding to each respective one of the partially removed regions.
18 . The light emitting device of claim 14 , wherein each of the light emitters further includes:
a first electrode electrically connected to the first semiconductor layer; and
a second electrode electrically connected to the second semiconductor layer, the first electrode and the second electrode are positioned corresponding to the partially removed regions.
19 . The light emitting device of claim 14 , wherein the light emitters are arranged in an n×m arrangement, in which n and m are natural numbers.