Light emitting module and head lamp including the same
Disclosed is a light emitting module including a light emitting device package having a circuit board having a cavity, an insulation substrate arranged in the cavity, with a conductive pattern formed thereon, and at least one light emitting device disposed on the insulation substrate, with being electrically connected with the conductive pattern; and a glass cover located on the light emitting device package, with lateral surfaces, a top surface and an open bottom surface, wherein the light emitting device package and the circuit board are electrically connected with each other.
1. A light emitting module comprising:
a circuit board having a cavity;
first conductive pattern disposed on a surface of the circuit board;
an insulation substrate disposed in the cavity, the insulation substrate comprising a second conductive pattern;
insulation layers disposed on the circuit board;
at least one light emitting device disposed on the insulation substrate, and electrically connected with the second conductive pattern;
a supporting part disposed on the circuit board; and
a glass cover disposed on the supporting part,
wherein the first conductive pattern and the second conductive pattern are electrically connected with each other,
wherein the supporting part includes a first portion and a second portion, a height of the first portion being lower than a height of the second portion,
wherein the first portion supports the glass cover,
wherein the insulation substrate is separated from the insulation layers,
wherein the insulation layers include a first surface and a second surface, the first surface including a first region and a second region,
wherein the support part is disposed on the first region and the first conductive pattern is disposed on the second region, and
wherein a height of the first region from a bottom of the cavity is a same as a height of the second region from the bottom of the cavity.
2. The light emitting module according to claim 1 , wherein the glass cover comprises at least one through hole disposed in at least one surface thereof.
3. The light emitting module according to claim 1 , wherein the glass cover comprises an anti-reflective coating layer disposed on at least one surface thereof.
4. The light emitting module according to claim 1 , wherein at least one of the lateral surfaces of the glass cover is open.
5. The light emitting module according to claim 1 , wherein at least one of the lateral surfaces of the glass cover has two different heights.
6. The light emitting module according to claim 1 , wherein at least one surface of the glass cover comprises a color filter.
7. The light emitting module according to claim 1 , wherein at least one surface of the glass cover comprises a phosphor layer.
8. The light emitting module according to claim 1 , wherein at least one of lateral surfaces of the glass cover comprises an inclined surface.
9. The light emitting module according to claim 8 , wherein a reflection layer comprising at least one of Al, Ag, Pt, Rh, Rd, Pd or Cr is disposed on the inclined surface.
10. The light emitting module according to claim 1 , wherein the glass cover is disposed above the light emitting device.
11. The light emitting module according to claim 1 , wherein the supporting part comprises a reflection layer comprising at least one of Al, Ag, Pt, Rh, Rd, Pd or Cr.
12. The light emitting module according to claim 10 , wherein a distance between the light emitting device and the glass cover is within a range of 0.2˜40 mm.
13. The light emitting module according to claim 1 , wherein the glass cover is dome-shaped.
14. The light emitting module according to claim 1 , wherein at least one surface of the glass cover comprises a light extraction pattern.
15. The light emitting module according to claim 1 , wherein the light emitting device comprises a light emitting structure comprising a first conductive type semiconductor layer, an active layer and a second conductive type semiconductor layer; a first electrode disposed on the first conductive type semiconductor layer; and a second electrode disposed on the second conductive type semiconductor layer.
16. The light emitting module according to claim 1 , wherein the supporting part is disposed around the cavity.
17. The light emitting module according to claim 1 , wherein the insulation layer is disposed between the first conductive pattern and the circuit board.
18. A head lamp comprising:
a light emitting module configured to emit a light;
a reflector configured to reflect the light emitted from the light emitting module; and
a lens configured to refract the light emitted from the light emitting module and the light reflected by the reflector,
the light emitting module comprising:
a circuit board having a cavity;
first conductive pattern disposed on a surface of the circuit board;
an insulation substrate disposed in the cavity, the insulation substrate comprising a second conductive pattern;
insulation layers disposed on a top surface of a sidewall of the circuit board,
at least one light emitting device disposed on the insulation substrate, the at least one light emitting device electrically connected with the second conductive pattern;
a supporting part disposed on the circuit board; and
a glass cover disposed on the supporting part,
wherein the first conductive pattern and the second conductive pattern are electrically connected with each other,
wherein the supporting part includes a first portion and a second portion,
wherein a height of the first portion is lower than a height of the second portion,
wherein the first portion supports the glass cover,
wherein the insulation substrate is separated from the insulation layers,
wherein the insulation layers include a first surface and a second surface, the first surface including a first region and a second region,
wherein the support part is disposed on the first region and the first conductive pattern is disposed on the second region, and
wherein a height of the first region from a bottom of the cavity is a same as a height of the second region from the bottom of the cavity.
19. The light emitting module according to claim 10 , further comprising a reflection layer formed on a surface of the supporting part.