Vertical light emitting diodes (LED) having metal substrate and spin coated phosphor layer for producing white light
First Claim
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1. A vertical light-emitting diode (LED) comprising:
- metal substrate;
a p-GaN layer on the metal substrate;
an active region for emitting light on the p-GaN layer;
an N-GaN layer on the active region; and
a spin coated phosphor layer on the n-GaN layer configured to change a wavelength of the light emitted by the active region to produce a white light, the spin coated phosphor layer comprising a phosphor powder and an organic chemical having a pre-cured viscosity selected to provide a predetermined thickness and color coordination for the white light.
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Abstract
A vertical light-emitting diode (VLED) includes a metal substrate, a p-electrode coupled to the metal substrate, a p-contact coupled to the p-electrode, a p-GaN portion coupled to the p-electrode, an active region coupled to the p-GaN portion, an n-GaN portion coupled to the active region, and a phosphor layer coupled to the n-GaN portion.
37 Citations
12 Claims
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1. A vertical light-emitting diode (LED) comprising:
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metal substrate; a p-GaN layer on the metal substrate; an active region for emitting light on the p-GaN layer; an N-GaN layer on the active region; and a spin coated phosphor layer on the n-GaN layer configured to change a wavelength of the light emitted by the active region to produce a white light, the spin coated phosphor layer comprising a phosphor powder and an organic chemical having a pre-cured viscosity selected to provide a predetermined thickness and color coordination for the white light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A vertical light-emitting diode (LED) comprising:
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a metal substrate; a p-GaN layer on the metal substrate; an active region for emitting light on the p-GaN layer; an n-GaN layer on the active region; a first spin coated phosphor layer on the n-GaN layer; and a second spin coated phosphor layer on the first phosphor layer, the first spin coated phosphor layer and the second spin coated phosphor layer configured to change a wavelength of the light emitted by the active region to produce a white light, the first spin coated phosphor layer and the second spin coated phosphor layer comprising a phosphor powder and an organic chemical having a pre-cured viscosity selected to provide predetermined thicknesses and a predetermined color coordination for the white light. - View Dependent Claims (11, 12)
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Specification