Mobile terminal
A lighting device includes a printed circuit board (PCB), a submount mounted on the PCB, a die mounted on the submount and including a plurality of light emitting devices, and a pad inserted into a hole formed in the submount such that the die and the PCB are electrically connected through the submount, connected to the die by a wire bonding, and electrically connected to the PCB.
1. A lighting device comprising:
a die including a plurality of light emitting devices;
a printed circuit board (PCB) electrically connected to the die;
a submount connected to the PCB; and
a pad inserted into a hole formed in the submount such that the die and the PCB are electrically connected through the submount, connected to the die by a wire bonding, and electrically connected to the PCB,
wherein heat generated in the die is dissipated through the submount and the PCB.
2. The lighting device of claim 1 , wherein the submount is mounted on the PCB and the die is mounted on the submount.
3. The lighting device of claim 1 , wherein the plurality of light emitting devices provided in the die and the PCB are electrically connected by penetrating through the submount through the pad inserted into the submount.
4. The lighting device of claim 1 , further comprising:
a holder disposed on the submount, provided to cover the die, and having an internal space.
5. The lighting device of claim 4 , wherein heat generated in the die is dissipated through a side surface of the submount and the PCB.
6. The lighting device of claim 4 , further comprising:
a diffractive optical element (DOE) disposed in the internal space and disposed by the holder.
7. The lighting device of claim 1 , further comprising:
a holder provided on the PCB and formed to cover the die and the submount.
8. The lighting device of claim 7 , wherein the holder is provided to have an internal space between the die and the holder.
9. The lighting device of claim 8 , further comprising:
a diffractive optical element (DOE) disposed in the internal space and disposed by the holder.
10. A lighting device comprising:
a first printed circuit board (PCB);
a die including a plurality of light emitting devices, the first PCB electrically connected to the die,
wherein the die is mounted on the first PCB formed as a metal member, and the die and the first PCB are connected by a wire bonding; and
a second PCB disposed to be spaced apart from the first PCB by a predetermined distance and electrically connected to the first PCB through a cable.
11. The lighting device of claim 10 , further comprising:
a holder disposed on the first PCB, provided to cover the die, and having an internal space.
12. The lighting device of claim 10 , wherein heat generated in the die is dissipated through the first PCB as the metal member.
13. The lighting device of claim 1 , wherein a plurality of anode electrodes electrically connected to the plurality of light emitting devices are provided on one surface of the die, and a single cathode electrode electrically connected to the plurality of light emitting devices is provided on the other surface opposing the one surface of the die.
14. The lighting device of claim 13 , wherein the plurality of anode electrodes and the pad are connected by a wire bonding.
15. The lighting device of claim 1 , wherein a plurality of cathode electrodes electrically connected to the plurality of light emitting devices are provided on one surface of the die, and a single anode electrode electrically connected to the plurality of light emitting devices is provided on the other surface opposing the one surface of the die.
16. The lighting device of claim 4 , wherein a lens allowing light output from the plurality of light emitting devices provided in the die to transmit therethrough is provided in the holder.
17. The lighting device of claim 16 , wherein the lens is a telecentric lens.