Light emitting bulb
This disclosure discloses a light-emitting bulb. The light-emitting bulb includes a cover, an electrical associated with the cover, a board arranged between the cover and the electrical connector, and a first light-emitting device disposed on the board. The first light-emitting device includes a carrier having a first side and a second side, a first electrode part disposed near the first side and extending to the second side, a bended part disposed near to the second side and spaced apart from the first electrode part, and a second electrode part extending from the bended part to the first side. No light-emitting diode unit is arranged on the second electrode part.
1. A light-emitting bulb, comprising:
a cover;
an electrical connector associated with the cover;
a board arranged between the cover and the electrical connector; and
a first light-emitting device disposed on the board and comprising:
a carrier having a first side, a second side and a first thickness;
a first electrode part disposed on the carrier in a configuration of extending from the first side to the second side and having a second thickness less than the first thickness;
a bended part disposed around the second side on the carrier, and spaced apart from the first electrode part;
a second electrode part disposed on the carrier in a configuration of extending from the bended part to the first side; and
a plurality of light-emitting units formed between the first electrode part and the bended part.
2. The light-emitting bulb of claim 1 , further comprising a first electrode pad formed on the carrier and connected to the first electrode part and having a third thickness substantially equal to the first electrode part.
3. The light-emitting bulb of claim 2 , further comprising a second electrode pad formed on the surface and connected to the second electrode part.
4. The light-emitting bulb of claim 3 , wherein the first electrode pad and the second electrode pad are at the first side.
5. The light-emitting bulb of claim 1 , wherein the second electrode part comprises a linear plate.
6. The light-emitting bulb of claim 1 , wherein the second electrode part is parallel to the first electrode part.
7. The light-emitting bulb of claim 1 , wherein the light-emitting device further comprises a wavelength conversion layer covering the plurality of light-emitting units.
8. The light-emitting bulb of claim 7 , wherein the wavelength conversion layer covers the first electrode part and the second electrode part.
9. The light-emitting bulb of claim 1 , wherein the second electrode part has a length greater than the first electrode part.
10. The light-emitting bulb of claim 1 , further comprising a plurality of light-emitting devices arranged in a triangular pattern, a rectangular pattern, a polygonal pattern or an approximate circle pattern from the top view.
11. The light-emitting bulb of claim 1 , wherein the light-emitting device is substantially disposed on the board in a vertical direction.
12. The light-emitting bulb of claim 1 , further comprising a second light-emitting device having a carrier, wherein each of the carriers of the first light-emitting device and the second light-emitting device has a top surface with a normal vector, and the two normal vectors point in opposite directions from each other.
13. The light-emitting bulb of claim 1 , wherein the second electrode part is devoid of light-emitting units disposed thereon.