Light-polarizing structure
First Claim
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1. A light-emitting device, comprising:
- a substrate;
at least one light-emitting structure positioned on the substrate, wherein the light-emitting structure includes a p-type semiconductor layer; and
a light-collimating structure positioned in the p-type semiconductor layer of the light-emitting structure, the light-collimating structure includes a plurality of pillars and a plurality of ring-shaped holes surrounding the pillars, wherein the depth of the ring-shaped hole is smaller than or equal to the thickness of the p-type semiconductor layer.
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Abstract
A light-emitting device comprises a substrate, at least one light-emitting structure configured to emit light beams and positioned on the substrate, and a ring-shaped photonic crystal structure positioned in the light-emitting structure. The ring-shaped photonic crystal structure includes a plurality of pillars positioned in the light-emitting structure and a plurality of ring-shaped openings surrounding the pillars. The distance between the ring-shaped openings is preferably between 0.2λ and 10λ, and λ represents the wavelength of the light beam.
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Citations
10 Claims
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1. A light-emitting device, comprising:
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a substrate; at least one light-emitting structure positioned on the substrate, wherein the light-emitting structure includes a p-type semiconductor layer; and a light-collimating structure positioned in the p-type semiconductor layer of the light-emitting structure, the light-collimating structure includes a plurality of pillars and a plurality of ring-shaped holes surrounding the pillars, wherein the depth of the ring-shaped hole is smaller than or equal to the thickness of the p-type semiconductor layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification