Patent ID: 8866765
Filing Date: 2014-10-21
Classification: G06F,H01L,Y10T

Abstract:
1. A manufacturing method of light emitting units comprising steps of: providing a substrate, the substrate having a plurality of circuit areas and a light emitting device being disposed on each of the circuit areas; respectively forming a dome-shaped packaging structure to cover each of the light emitting devices on the circuit areas, each of the packaging structure comprising a biconic top surface having a central first curvature region and a surrounding second curvature region integrally formed around the first curvature region; singulating the packaging structures by cutting in the second curvature region of each biconic top surface through the substrate along two non-parallel axes to form separated and individual light emitting units, wherein the biconic top surface of each singulated packaging structure remains a bi-curvature profile; wherein each of the light emitting units has an asymmetric lighting pattern in two directions.