Light-emitting device package

1. A light-emitting device package, comprising:

a package main body comprising a cavity and a lead frame comprising a mounting portion disposed in the cavity and a plurality of terminal portions;

a light-emitting device chip disposed on the mounting portion;

a plurality of bonding wires for electrically connecting the plurality of terminal portions and the light-emitting device chip;

a light-transmitting encapsulation layer filled in the cavity; and

a light-transmitting cap member disposed in the cavity and dividing the cavity into an upper space filled with the light-transmitting encapsulation layer and a lower space free of the light-transmitting encapsulation layer such that the plurality of bonding wires and the light-emitting device chip are disposed in the lower space.

2. The light-emitting device package of claim 1 , wherein the encapsulation layer includes a fluorescent substance that converts light emitted from the light-emitting device chip into a predetermined light color.

3. The light-emitting device package of claim 1 , wherein the encapsulation layer includes bubbles.

4. The light-emitting device package of claim 1 , wherein the encapsulation layer comprises:

a first encapsulation layer disposed on an upper portion of the light-transmitting cap member and including bubbles, and

a second encapsulation layer disposed on the first encapsulation layer and including no free of bubbles.

5. The light-emitting device package of claim 4 , wherein a fluorescent substance that converts light emitted from the light-emitting device chip into a predetermined light color is included in at least one of the first and second encapsulation layers.

6. A light-emitting device package, comprising:

a package main body comprising a lead frame and an upper frame having a cavity, the lead frame comprising a mounting portion forming a lower structure of the cavity and a plurality of terminal portions;

a light-emitting device chip disposed on the mounting portion and electrically connected to the plurality of terminal portions via a plurality of bonding wires;

a light-transmitting cap member dividing the cavity into a lower space occupied by the plurality of bonding wires and filled with air and an upper space above the lower space; and

a refractive index-matching layer disposed on an upper surface of the light-emitting device chip and having a refractive index that is smaller than a refractive index of the light-emitting device chip and greater than a refractive index of air.

7. The light-emitting device package of claim 6 , wherein a fluorescent substance that converts light emitted from the light-emitting device chip into a predetermined light color is dispersed into the refractive index-matching layer.

8. The light-emitting device package of claim 6 , further comprising a light-transmitting encapsulation layer disposed in the upper space.

9. The light-emitting device package of claim 8 , wherein the light-transmitting encapsulation layer includes a fluorescent substance that converts light emitted from the light-emitting device chip into a predetermined light color.

10. The light-emitting device package of claim 8 , wherein the light-transmitting encapsulation layer includes bubbles.

11. The light-emitting device package of claim 8 , wherein the encapsulation layer comprises:

a first encapsulation layer disposed on an upper portion of the light-transmitting cap member and including bubbles, and

a second encapsulation layer disposed on the first encapsulation layer and free of bubbles.

12. The light-emitting device package of claim 11 , wherein a fluorescent substance that converts light emitted from the light-emitting device chip into a predetermined light color is included in at least one of the first and second encapsulation layers.

13. A light-emitting device package, comprising:

a package main body comprising an upper frame and a lead frame having a mounting portion and a plurality of terminal portions;

a light-transmitting cap member contacting an inner surface of the upper frame defining a cavity in the package main body and dividing the cavity into an upper space and a lower space;

a light-emitting device chip disposed on the mounting portion in the lower space of the cavity;

a plurality of bonding wires for electrically connecting the plurality of terminal portions and the light-emitting device chip in the lower space of the cavity; and

a light-transmitting encapsulation layer filling at least a portion of the upper space of the cavity.