Light-emitting device having dissimilar first and second light-emitting angles
A light-emitting device includes a light-emitting structure with a side surface, and a reflective layer covering the side surface, and a light-transmitting body. The light-transmitting body encloses the light-emitting structure and has a first side surface, a second side surface, a third side surface and a fourth side surface. The reflective layer covers the first side surface and the third side surface without covering the second side surface and the fourth side surface. The light-emitting structure has a first light-emitting angle and a second light-emitting angle different from the first light-emitting angle.
1. A light-emitting device comprising:
a light-emitting structure with a side surface;
a light-transmitting body enclosing the light-emitting structure and having a first side surface, a second side surface, a third side surface and a fourth side surface; and
a reflective layer covering the side surface, the first side surface and the third side surface without covering the second side surface and the fourth side surface;
wherein the light-emitting device has a first light-emitting angle and a second light-emitting angle different from the first light-emitting angle.
2. The light-emitting device according to claim 1 , wherein the light-transmitting body has a top surface and a bottom surface opposite to the top surface, and the light-emitting device comprises a pair of extension electrode layers disposed on the bottom surface.
3. The light-emitting device according to claim 1 , wherein the first side surface is opposite to the third side surface and the second side surface is opposite to the fourth side surface.
4. The light-emitting device according to claim 1 , wherein the first light-emitting angle is of 130˜150°.
5. The light-emitting device according to claim 1 , wherein the second light-emitting angle is of 100˜125°.
6. The light-emitting device according to claim 1 , wherein the light-emitting device has merely three light-emitting surfaces.
7. The light-emitting device according to claim 1 , further comprising an extension electrode layer overlapping the reflective layer.
8. The light-emitting device according to claim 1 , further comprising an extension electrode layer having a side surface coplanar with the reflective layer.
9. The light-emitting device according to claim 3 , wherein the reflective layer has an inner surface with a first portion inclined with respect to the top surface and a second portion substantially perpendicular to the top surface.
10. The light-emitting device according to claim 9 , wherein the first portion has a height larger than that of the light-emitting structure.
11. The light-emitting device according to claim 1 , wherein the first side surface has a portion uncovered by the reflective layer.
12. The light-emitting device according to claim 1 , wherein the light-transmitting body has a top surface and the reflective layer has an inner surface inclined with respect to the top surface.
13. The light-emitting device according to claim 1 , further comprising another reflective layer, wherein the light-transmitting body further has a bottom surface covered by the another reflective layer.
14. The light-emitting device according to claim 1 , further comprising another reflective layer, wherein the light-emitting structure has an insulation layer covered by the another reflective layer.