Light-emitting device
A light-emitting device includes: a light-emitting element; a first light-diffusion layer disposed laterally to the light-emitting element and constituting a first portion of lateral surfaces of the light-emitting device; a second light-diffusion layer disposed above the light-emitting element and the first light-diffusion layer and constituting a second portion of the lateral surfaces of the light-emitting device; a light-control portion disposed between the first light-diffusion layer and the second light-diffusion layer and configured to reflect a portion of light emitted from the light-emitting element; and a first light-reflection layer disposed on the second light-diffusion layer.
1. A light-emitting device comprising:
a light-emitting element;
a phosphor layer covering the light-emitting element;
a first light-diffusion layer disposed laterally to the light-emitting element and constituting a first portion of lateral surfaces of the light-emitting device;
a second light-diffusion layer disposed above the light-emitting element and the first light-diffusion layer and constituting a second portion of the lateral surfaces of the light-emitting device;
a light-control portion disposed between the first light-diffusion layer and the second light-diffusion layer and configured to reflect a portion of light emitted from the light-emitting element; and
a first light-reflection layer disposed on the second light-diffusion layer;
wherein the first light-diffusion layer and the second light-diffusion layer cover the phosphor layer.
2. The light-emitting device according to claim 1 , wherein the light-control portion surrounds an outer periphery of the light-emitting element in a plan view.
3. The light-emitting device according to claim 1 , wherein the second light-diffusion layer spaced from the first light-diffusion layer.
4. The light-emitting device according to claim 1 , wherein the second light-diffusion layer is in contact with the first light-diffusion layer.
5. The light-emitting device according to claim 1 , wherein a lower end of the light-control portion is positioned above a lower surface of the light-emitting element.
6. The light-emitting device according to claim 5 , wherein the lower end of the light-control portion is positioned above an upper surface of the light-emitting element.
7. The light-emitting device according to claim 1 , wherein the light-control portion constitutes a third portion of the lateral surfaces of the light-emitting device.
8. The light-emitting device according to claim 1 , wherein the light-control portion is spaced from the lateral surfaces of the light-emitting device.
9. The light-emitting device according to claim 8 , wherein the light-control portion is a hollow.
10. The light-emitting device according to claim 1 , wherein the light-control portion is a white member.
11. The light-emitting device according to claim 1 , wherein an upper end of the light-control portion is positioned above an upper end of the phosphor layer.
12. The light-emitting device according to claim 11 , wherein a lower end of the light-control portion is positioned above the upper end of the phosphor layer.
13. The light-emitting device according to claim 1 , further comprising:
a second light-reflection layer under the light-emitting element.
14. A light-emitting device comprising:
a light-emitting element;
a first light-diffusion layer disposed laterally to the light-emitting element and constituting a first portion of lateral surfaces of the light-emitting device;
a second light-diffusion layer disposed above the light-emitting element and the first light-diffusion layer and constituting a second portion of the lateral surfaces of the light-emitting device;
a light-control portion disposed between the first light-diffusion layer and the second light-diffusion layer and configured to reflect a portion of light emitted from the light-emitting element; and
a first light-reflection layer disposed on the second light-diffusion layer; and
a second light-reflection layer under the light-emitting element.
15. The light-emitting device according to claim 14 , wherein the light-control portion surrounds an outer periphery of the light-emitting element in a plan view.
16. The light-emitting device according to claim 14 , wherein the second light-diffusion layer spaced from the first light-diffusion layer.
17. The light-emitting device according to claim 14 , wherein the second light-diffusion layer is in contact with the first light-diffusion layer.
18. The light-emitting device according to claim 14 , wherein a lower end of the light-control portion is positioned above a lower surface of the light-emitting element.
19. The light-emitting device according to claim 18 , wherein the lower end of the light-control portion is positioned above an upper surface of the light-emitting element.
20. The light-emitting device according to claim 14 , wherein the light-control portion constitutes a third portion of the lateral surfaces of the light-emitting device.
21. The light-emitting device according to claim 14 , wherein the light-control portion is spaced from the lateral surfaces of the light-emitting device.
22. The light-emitting device according to claim 14 , wherein the light-control portion is a white member.