Light emitting device and method of fabricating the same
A light emitting device package comprises: a substrate; first and second conduction members on the substrate; a light emitting diode on the substrate, the light emitting diode being electrically connected with the first and second conduction members; and a phosphor layer on the light emitting diode.
1. A light emitting device, comprising:
a light emitting diode (LED); and
a phosphor layer on a top surface of the LED, the phosphor layer including a series of parallel ridges and valleys having a first height and second height different from each other patterned in a top surface of the phosphor layer,
wherein the ridge and the valley have flat surfaces,
wherein an uppermost point of each of the ridges of the phosphor layer has a predetermined height above the top surface of the LED, and
wherein the parallel ridges include parallel convex ridges.
2. The light emitting device of claim 1 , wherein a period of the series of parallel ridges is a predetermined period.
3. The light emitting device of claim 2 , wherein the predetermined period is 0.8 to 5 μm.
4. The light emitting device of claim 1 , wherein the predetermined height is 300 to 3000 nm.
5. The light emitting device of claim 1 , wherein the ridges of the phosphor layer have a substantially uniform height above the top surface of the LED.
6. The light emitting device of claim 1 , wherein the valleys of the phosphor layer have a predefined height above the top surface of the LED.
7. The light emitting device of claim 1 , wherein the phosphor layer includes a portion formed on a side surface of the LED.
8. The light emitting device of claim 1 , further comprising:
an electrode formed on the top surface of the LED along a side of the top surface of the LED.
9. The light emitting device of claim 8 , further comprising:
a wire connected to the electrode.
10. A light emitting device, comprising:
a light emitting diode (LED); and
a phosphor layer on a top surface of the LED, the phosphor layer including a series of parallel ridges and valleys having a first height and second height different from each other patterned in a top surface of the phosphor layer,
wherein the valleys of the phosphor layer contain no phosphor material.
11. A light emitting device, comprising:
a light emitting diode (LED); and
a phosphor layer on a top surface of the LED, the phosphor layer including a series of parallel ridges and valleys having a first height and second height different from each other patterned in a top surface of the phosphor layer,
wherein the parallel ridges include parallel rectangular ridges.