Light emitting device assembly and headlamp including the same

摘要

An LED assembly according to an embodiment of the present invention may improve dark regions generated between LED chips by employing a first reflective layer between the LED chips. By employing a transparent optical layer or an optical layer including a scattering particle between an LED chip and a phosphor layer, direct contact between the LED chip and the phosphor layer may be avoided, thereby preventing a low light extraction efficiency. Further, by employing a second reflection layer on side surfaces of an to LED chip, an optical layer, and a phosphor layer, a relatively high contrast may be obtained. An LED assembly may enhance contrast through a reflective layer while increasing light extraction efficiency by including a scattering particle in a phosphor layer.

主权项

1. A headlamp for a vehicle comprising:
a light emitting device (LED) assembly; a reflector to reflect a light generated by the LED assembly at the front of the vehicle; and a lens to project a light reflected by the reflector and emitted to an area in front of the vehicle, wherein the LED assembly comprises:
at least one LED chip;a reflection layer disposed on four lateral surfaces of the at least one LED chip, wherein the reflection layer is in direct physical contact with the four lateral surfaces of the at least one LED chip; anda phosphor layer disposed on an upper surface of the at least one LED chip, wherein the phosphor layer is in direct physical contact with the upper surface of the at least one LED chip, andat least a portion of the reflection layer is contacted with the phosphor layer.