High light-extraction efficiency light-emitting diode structure
AssigneeHigh Power Opto. Inc.
InventorsLiang-Jyi Yan, Chang-Han Chiang, Yea-Chen Lee, Chih-Sung Chang
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Abstract
The present invention discloses a high light-extraction efficiency LED structure, wherein metallic pads and metallic mesh wires made of an aluminum-silver alloy are formed on an LED, whereby the high-reflectivity aluminum-silver alloy makes the light incident on the metallic pads and metallic mesh wires reflected once more or repeatedly and then emitted from the surface or lateral side of the LED, wherefore the present invention can decrease the light loss and increase the light-extraction efficiency.
Claims8
A high light-extraction efficiency light-emitting diode structure, comprising a light-emitting diode epitaxial layer, and characterized in that at least one electric-conduction layer made of an aluminum-silver alloy is formed over said light-emitting diode epitaxial layer.
Dependencies are inferred from the claim text.