Light emitting device and the manufacturing method thereof

Abstract

A light-emitting apparatus comprises a board having a plurality of conductive channels penetrating thereof; a plurality of light emitting units for emitting different color lights, disposed on the board and electrically connected to the plurality of conductive channels; and an opaque layer arranged on the board for preventing the plurality of light emitting units from crosstalk, and comprising a plurality of holes for exposing and separating the plurality of light emitting units in a top view.

What is claimed is: 
     
         1 . A light-emitting apparatus, comprising:
 a board having a plurality of conductive channels penetrating thereof;   a plurality of light emitting units for emitting different color lights, disposed on the board and electrically connected to the plurality of conductive channels; and   an opaque layer arranged on the board for preventing the plurality of light emitting units from crosstalk, and comprising a plurality of holes for exposing and separating the plurality of light emitting units in a top view.   
     
     
         2 . The light-emitting apparatus of  claim 1 , wherein each of the plurality of holes is larger than each of the plurality of light emitting units. 
     
     
         3 . The light-emitting apparatus of  claim 1 , further comprising a plurality of metal contacts arranged between the plurality of light emitting units and the board. 
     
     
         4 . The light-emitting apparatus of  claim 3 , wherein the plurality of metal contacts connects the plurality of light emitting units and the plurality of conductive channels. 
     
     
         5 . The light-emitting apparatus of  claim 1 , further comprising a transparent encapsulating layer arranged on the plurality of light emitting units and the opaque layer. 
     
     
         6 . The light-emitting apparatus of  claim 5 , wherein the transparent encapsulating layer is connected the opaque layer. 
     
     
         7 . The light-emitting apparatus of  claim 5 , wherein the transparent encapsulating layer is transparent to the different color lights. 
     
     
         8 . The light-emitting apparatus of  claim 1 , further comprising a dielectric layer surrounding lateral entirety of the plurality of light emitting units. 
     
     
         9 . The light-emitting apparatus of  claim 8 , wherein the dielectric layer comprises SiO2, silicon nitride, polyimide, bisbenzocyclobutene, or photoresist. 
     
     
         10 . The light-emitting apparatus of  claim 8 , wherein the dielectric layer is arranged to cover every side wall exposed from the plurality of light emitting units. 
     
     
         11 . The light-emitting apparatus of  claim 1 , wherein the board comprises FR-4, BT (Bismaleimide-Triazine) resin, ceramics or glass. 
     
     
         12 . The light-emitting apparatus of  claim 1 , wherein the plurality of light emitting units comprises a plurality of active layers for emitting the different color lights. 
     
     
         13 . The light-emitting apparatus of  claim 12 , wherein each of the plurality of light emitting units comprises a first metal layer and a second metal layer which are oriented to face the board. 
     
     
         14 . The light-emitting apparatus of  claim 13 , wherein the first metal layer is separated from the second metal layer by a distance smaller than 25 microns. 
     
     
         15 . The light-emitting apparatus of  claim 13 , wherein the first metal layer is separated from the second metal layer by a distance larger than or equal to 25 microns. 
     
     
         16 . The light-emitting apparatus of  claim 1 , wherein the board has a thickness between 50 and 200 microns 
     
     
         17 . The light-emitting apparatus of  claim 1 , wherein each of the plurality of holes is formed in a shape of rectangle. 
     
     
         18 . The light-emitting apparatus of  claim 1 , wherein the opaque layer comprises a polymer mixed with inorganic particles. 
     
     
         19 . A display module, comprising:
 a circuit board; and   a plurality of light-emitting apparatus as recited in  claim 1  arranged on the circuit board;   wherein the plurality of light-emitting apparatus is separated from each other by a distance.   
     
     
         20 . The display module as  claim 19 , wherein the plurality of light emitting units is operated to independently emit the different color lights.