Abstract: A light-emitting device includes an LED chip disposed on a supporting component. The LED chip includes a semiconductor stack formed on a substrate, a first electrode, and a second electrode. A light-blocking layer fills the supporting component to cover a lateral side of the LED chip and expose a top chip surface of the LED chip. The light-blocking layer has a top surface not lower than the top chip surface of the LED chip. A height difference among the top chip surface, the top surface of the light-blocking layer and a top end of the supporting component is less than 10 ?m. A top light exit port defined by the light-blocking layer to expose the top chip surface has a cross sectional area not larger than that of the top chip surface.