Light emitting diode with high light extraction efficiency and method for manufacturing the same
AssigneeAdvanced Optoelectronic Technology, Inc.
InventorsCHIH-JUNG LIU, TZU-CHIEN HUNG
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Abstract
A light emitting diode includes a light emitting structure, a transparent conductive layer and a transparent protecting layer formed in sequence. A plurality of holes are defined in the transparent protecting layer to expose the transparent conductive layer out of the transparent protecting layer. A plurality of micro-structures are formed on a top surface of the transparent conductive layer in the holes. The micro-structures refract light emitted from the light emitting structure and travelling through the transparent conductive layer.
Claims16
A light emitting diode, comprising:
- a light emitting structure;
- a transparent conductive layer formed on the light emitting structure;
- and
- a transparent protecting layer formed on the transparent conductive layer, a plurality of holes being defined in the transparent protecting layer to expose the transparent conductive layer out of the transparent protecting layer, a plurality of micro-structures being formed on a top surface of the transparent conductive layer in the holes, the micro-structures refracting light from the light emitting structure and travelling through the transparent conductive layer.
A method for manufacturing a light emitting diode comprising steps:
- providing a light emitting structure;
- forming a transparent conductive layer and a transparent protecting layer on the light emitting structure in sequence;
- defining a plurality of holes in the transparent protecting layer to expose the transparent conductive layer out of the transparent protecting layer through the holes;
- and
- coarsening the transparent conductive layer to have the transparent conductive layer formed with a plurality of micro-structures in the holes.
Dependencies are inferred from the claim text.