Light emitting device package and lighting apparatus using the same
In one embodiment, the light emitting device package includes a package body, electrodes attached to the package body, and at least two light emitting devices electrically connected to the electrodes. Each light emitting device emits light of a different color from the other light emitting devices. A protective layer is formed over the at least two light emitting devices, and a phosphor layer formed over the protective layer. Other embodiments include other structures such a individual phosphor layers on each light emitting device. And, a light apparatus including a package may include a single driver driving the light emitting devices of the package.
1. A light emitting device package, comprising:
a package body having a mounting groove formed therein;
electrodes attached to the package body;
at least two light emitting devices electrically connected to the electrodes, each light emitting device emitting light of a different color from the other light emitting devices, wherein sizes of the at least two light emitting devices are different from each other;
a protective layer formed over the at least two light emitting devices; and
a phosphor layer formed over the protective layer, wherein the at least two light emitting devices and the protective layer are provided in the mounting groove founed in the package body and the phosphor layer is provided outside of the mounting groove, and wherein the phosphor layer includes resin films and a phosphor film interposed between the resin films.
2. The light emitting device package according to claim 1 , wherein the phosphor layer includes a red phosphor.
3. The light emitting device package according to claim 1 , wherein the at least two light emitting devices include a blue light emitting device and a green light emitting device.
4. The light emitting device package according to claim 1 , further comprising:
a heat sink provided on the package body and contacting the at least two light emitting devices.
5. The light emitting device package according to claim 1 , wherein the phosphor film is made of one of a phosphor powder or a phosphor resin, and the resin films are made of PET.
6. A lighting apparatus, comprising:
a light emitting device package including:
at least two light emitting devices respectively emitting light of a first color and a second color that differ from each other, wherein a size of the light emitting device emitting light of the first color is different than a size of the light emitting device emitting light of the second color; and
a phosphor formed over the at least two light emitting devices;
a driver to drive the at least two light emitting devices to emit light of the first and second colors;
a protective layer formed over the at least two light emitting devices; and
a phosphor layer formed on the protective layer, wherein the phosphor is contained in the phosphor layer, and
wherein the light emitting device package includes a mounting groove in which the at least two light emitting devices and the protective layer are provided, with the phosphor layer provided outside of the mounting groove, and wherein the phosphor layer includes resin films and a phosphor layer interposed between the resin films.
7. The lighting apparatus according to claim 6 , wherein the first color and the second color are blue and green, respectively.
8. The lighting apparatus according to claim 6 , wherein the phosphor is a phosphor to emit red light.
9. The lighting apparatus according to claim 6 , wherein the light emitting device emitting light of the first color and the light emitting device emitting light of the second color are connected in one of series or parallel.