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US 7,358,543 B2Granted
Light emitting device having a layer of photonic crystals and a region of diffusing material and method for fabricating the device
AssigneeAvago Technologies ECBU IP (Singapore) Pte. Ltd.
InventorsJanet Bee Yin Chua, Yue Hoong Lau
Life of this patent
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Abstract
A light emitting device and method for fabricating the device utilizes a layer of photonic crystals and a region of diffusing material to enhance the light output of the device. The layer of photonic crystals is positioned over a light source, such as a light emitting diode die, and the region of diffusing material is positioned over the layer of photonic layer.
Claims20
A light emitting device comprising:
- a semiconductor die that emits light;
- a layer of photonic crystals positioned on said semiconductor die;
- and
- a region of diffusing material positioned on said layer of photonic crystals.
1 more element
A light emitting device comprising:
- a semiconductor die that emits light;
- a layer of photonic crystals positioned on said semiconductor die;
- and
- a photoluminescent material embedded within said layer of photonic crystals.
1 more element
A method for fabricating a light emitting device, said method comprising:
- providing a semiconductor die that emits light;
- and
- forming a layer of photonic crystals on said semiconductor die, including embedding a photoluminescent material within said layer of photonic crystals.
Dependencies are inferred from the claim text.