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US 10,381,513 B2Granted
Enhanced light extraction
AssigneeFacebook Technologies, LLC
InventorsJames Ronald Bonar, Zheng Gong, James Small, Gareth John Valentine, Richard I. Laming
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Abstract
There is herein described light generating electronic components with improved light extraction and a method of manufacturing said electronic components. More particularly, there is described LEDs having improved light extraction and a method of manufacturing said LEDs.
Claims18
A light emitting device, comprising:
- a light emitting structure configured to generate light, the light emitting structure including a first side and a second side, the second side including a light emitting surface through which the light is emitted, the light emitting structure further including a sidewall between the first and second sides;
- and
- an ohmic contact to the light emitting structure, including:
- a transparent electrically conductive layer above the light emitting structure at the first side;
- and
- a metal layer above the transparent electrically conductive layer, the light generated by the light emitting structure being transmitted through the transparent electrically conductive layer in first directions and reflected by the metal layer in second directions back through the transparent electrically conductive layer and the light emitting structure to the light emitting surface, wherein the transparent electrically conductive layer over the light emitting structure and the sidewall of the light emitting structure include a domed cross-section shape.
3 more elements
An electronic device, comprising:
- a substrate;
- and
- a plurality of light emitting devices on the substrate, each light emitting device including:
- a light emitting structure configured to generate light, the light emitting structure including a first side and a second side, the second side including a light emitting surface through which the light is emitted, the light emitting structure further including a sidewall between the first and second sides;
- and
- an ohmic contact to the light emitting structure, including:
- a transparent electrically conductive layer above the light emitting structure at the first side;
- and
- a metal layer above the transparent electrically conductive layer, the light generated by the light emitting structure being transmitted through the transparent electrically conductive layer in first directions and reflected by the metal layer in second directions back through the transparent electrically conductive layer and the light emitting structure to the light emitting surface,
- wherein the transparent electrically conductive layer over the light emitting structure and the sidewall of the light emitting structure include a domed cross-section shape.
7 more elements
Dependencies are inferred from the claim text.