Light-emitting device, lighting device including the light-emitting device, and method of manufacturing the light-emitting device
View Patent ↗A light-emitting device includes a light-emitting element with a pair of element electrodes as a first element electrode and a second element electrode positioned at the lower surface of the light-emitting element; a phosphor plate disposed on the upper surface of the light-emitting element; a first resin covering the lower surface and the peripheral side surface of the light-emitting element with the first element electrode and the second element electrode partly appearing from the first resin; and a second resin provided in the phosphor plate.
1. A light-emitting device comprising:
a light-emitting element including an upper surface, a lower surface opposite to the upper surface, a peripheral side surface extending between peripheral edges of the upper surface and peripheral edges of the lower surface, and a pair of element electrodes as a first element electrode and a second element electrode that are positioned at the lower surface opposite to the upper surface of the light-emitting element;
a first resin covering the peripheral side surface and the lower surface of the light-emitting element with the first element electrode and the second element electrode of the light-emitting element partly appearing from the first resin;
a phosphor plate including an upper surface, a lower surface opposite to the upper surface, a peripheral side surface extending between peripheral edges of the upper surface and peripheral edges of the lower surface, and a groove positioned along one of the peripheral edges of the upper surface of the phosphor plate;
a second resin filled in the groove of the phosphor plate; and
the lower surface of the phosphor plate being adhered to the upper surface of the light-emitting element.
2. The light-emitting device according to claim 1 :
the first resin is white resin.
3. The light-emitting device according to claim 2 :
the second resin is white resin that is a same material as the first resin.
4. The light-emitting device according to claim 1 :
the second resin is made from a resin of different color from the first resin.
5. The light-emitting device according to claim 1 :
the groove is positioned adjacent to one of the pair of element electrodes of the light-emitting element in a top plan view.
6. The light-emitting device according to claim 1 :
wherein the groove passes through the phosphor plate from the upper surface to the lower surface of the phosphor plate.
7. The light-emitting device according to claim 1 :
wherein the groove is a line concave groove cut into the phosphor plate from the upper surface to a middle of the phosphor plate.
8. The light-emitting device according to claim 1 :
wherein the upper surface of the phosphor plate is larger than the upper surface of the light-emitting element.
9. The light-emitting device according to claim 1 :
wherein the peripheral side surface of the phosphor plate is flush with a peripheral side surface of the first resin.
10. The light-emitting device according to claim 1 :
wherein the groove is positioned above the first resin.
11. The light-emitting device according to claim 1 :
wherein the light-emitting element is a light-emitting diode element.
12. A lighting device comprising:
the light-emitting device according to claim 1 ;
a motherboard including a pair of electrodes as a first electrode and a second electrode;
the first element electrode of the light-emitting element being electrically connected to the first electrode of the motherboard and the second element electrode of the light-emitting element being electrically connected to the second electrode of the motherboard.