Light-emitting device
An embodiment of present invention discloses a light-emitting device which includes a first light-emitting area, a second light-emitting area, and a third light-emitting area. The first light-emitting area emits a red light and includes a first light-emitting unit. The second light-emitting area emits a blue light and includes a second light-emitting unit. The third light-emitting area emits a green light and includes a third light-emitting unit. The first light-emitting area is larger than the second light-emitting area and larger than the third light-emitting area. Each of the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit has a width of less than 100 μm and a length of less than 100 μm.
1. A display module, comprising:
a substrate comprising a top surface; and
a plurality of light-emitting devices arranged in an array configuration on the top surface, each light-emitting device comprising:
a first semiconductor light-emitting unit comprising a first light-emitting area and configured to emit a first light;
a second semiconductor light-emitting unit comprising a second light-emitting area and configured to emit a second light; and
a third semiconductor light-emitting unit comprising a third light-emitting area and configured to emit a third light;
wherein the first light, the second light, and the third light are different color lights, and the first light-emitting area is larger than the second light-emitting area and larger than the third light-emitting area;
wherein the first semiconductor light-emitting unit is overlapped with the second semiconductor light-emitting unit in a normal direction of the top surface, and the second semiconductor light-emitting unit and the third semiconductor light-emitting unit do not overlap with each other in the normal direction of the top surface.
2. The display module according to claim 1 , further comprising a supporting body, wherein the first semiconductor light-emitting unit, the second semiconductor light-emitting unit, and the third semiconductor light-emitting unit are disposed on the supporting body.
3. The display module according to claim 1 , wherein the first semiconductor light-emitting unit, the second semiconductor light-emitting unit, and the third semiconductor light-emitting unit are flip chips.
4. The display module according to claim 1 , wherein the first light-emitting area is at least 1.5 times of the second light-emitting area, the third light-emitting area, or both.
5. The display module according to claim 1 , wherein the first semiconductor light-emitting unit does not have a growth substrate or has a thinned growth substrate.
6. The display module according to claim 1 , further comprising a glue continuously covering the first semiconductor light-emitting unit, the second semiconductor light-emitting unit, and the third semiconductor light-emitting unit.
7. The display module according to claim 1 , wherein the first semiconductor light-emitting unit has at least two separated portions which are not covered by the second semiconductor light-emitting unit and the third semiconductor light-emitting unit.
8. The display module according to claim 1 , wherein the first semiconductor light-emitting unit has a longitudinal side perpendicular to that of the second semiconductor light-emitting unit.
9. The display module according to claim 1 , wherein the first semiconductor light-emitting unit has a geometric center not aligned with that of the second semiconductor light-emitting unit in the normal direction of the top surface.
10. The display module according to claim 1 , wherein at least two of the first, second and third semiconductor light-emitting units have different shapes.
11. The display module according to claim 1 , wherein each of the first semiconductor light-emitting unit, the second semiconductor light-emitting unit, and the third semiconductor light-emitting unit has a width of less than 100 μm, and a length of less than 100 μm.
12. A display module, comprising:
a substrate comprising a top surface; and
a plurality of light-emitting devices arranged in an array configuration on the top surface, each light-emitting device comprising:
a first semiconductor light-emitting unit, electrically connected to the substrate with a first conductive structure;
a second semiconductor light-emitting unit, arranged above the first semiconductor light-emitting unit, and electrically connected to the substrate with a second conductive structure; and
a third semiconductor light-emitting unit, electrically connected to the substrate with a third conductive structure;
wherein the first, second, and third semiconductor light-emitting units are configured to emit different color lights, the second semiconductor light-emitting unit and the third semiconductor light-emitting unit do not overlap with each other in a normal direction of the top surface;
wherein the second conductive structure and the third conductive structure are arranged at opposite sides of the first semiconductor light-emitting unit.
13. The display module according to claim 12 , wherein the second semiconductor light-emitting unit and the third semiconductor light-emitting unit are arranged on two portions of the first semiconductor light-emitting unit, respectively.
14. The display module according to claim 12 , wherein the third conductive structure has at least one portion not overlapping the first semiconductor light-emitting unit in the normal direction of the top surface.
15. The display module according to claim 12 , wherein the first semiconductor light-emitting unit and the second semiconductor light-emitting unit have different thicknesses.
16. The display module according to claim 12 , wherein the first conductive structure has a thickness less than that of the second conductive structure.
17. The display module according to claim 12 , wherein the second conductive structure has at least on portion not overlapping the first semiconductor light-emitting unit in the normal direction of the top surface.