LIGHT-EMITTING DIODE (LED), LED PACKAGE AND APPARATUS INCLUDING THE SAME
First Claim
1. A multi-color light-emitting apparatus comprising:
- first, second, and third light-emitting structures each including a first-conductivity-type semiconductor layer, a second-conductivity-type semiconductor layer, and an active layer between the first and second-conductivity-type semiconductor layers;
a first optical wavelength conversion layer on a upper surface of the first-conductivity-type semiconductor layer of the first light-emitting structures;
a first optical filter layer on an upper surface of the first optical wavelength conversion layer;
a reflection layer on a lateral surface of the first optical wavelength conversion layer;
a first electrode electrically connected to the first-conductivity-type semiconductor layer;
a second electrode arranged on a lower surface of the second-conductivity-type semiconductor layer and electrically connected to the second-conductivity-type semiconductor layer,wherein lateral surfaces of the first optical filter layer and the reflection layer are substantially coplanar.
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Accused Products
Abstract
A light-emitting diode (LED) package includes a light-emitting structure, an optical wavelength conversion layer on the light-emitting structure, and an optical filter layer on the optical wavelength conversion layer. The light-emitting structure includes a first-conductivity-type semiconductor layer, an active layer on the first-conductivity-type semiconductor layer, and a second-conductivity-type semiconductor layer on the active layer, and emits first light having a first peak wavelength. The optical wavelength conversion layer absorbs the first light emitted from the light-emitting structure and emits second light having a second peak wavelength different from the first peak wavelength. The optical filter layer reflects the first light emitted from the light-emitting structure and transmits the second light emitted from the optical wavelength conversion layer.
16 Citations
20 Claims
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1. A multi-color light-emitting apparatus comprising:
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first, second, and third light-emitting structures each including a first-conductivity-type semiconductor layer, a second-conductivity-type semiconductor layer, and an active layer between the first and second-conductivity-type semiconductor layers; a first optical wavelength conversion layer on a upper surface of the first-conductivity-type semiconductor layer of the first light-emitting structures; a first optical filter layer on an upper surface of the first optical wavelength conversion layer; a reflection layer on a lateral surface of the first optical wavelength conversion layer; a first electrode electrically connected to the first-conductivity-type semiconductor layer; a second electrode arranged on a lower surface of the second-conductivity-type semiconductor layer and electrically connected to the second-conductivity-type semiconductor layer, wherein lateral surfaces of the first optical filter layer and the reflection layer are substantially coplanar. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A display device comprising:
a plurality of pixels each including a first subpixel having a first LED, wherein the first LED includes; a first light-emitting structure including a first-conductivity-type semiconductor layer, a second-conductivity-type semiconductor layer and an active layer disposed between the first and second-conductivity-type semiconductor layers; a first optical wavelength conversion layer on an upper surface of the first-conductivity-type semiconductor layer; a first optical filter layer on the first optical wavelength conversion layer; a reflection layer on a lateral side of the first optical wavelength conversion layer; a first electrode configured to be electrically connected to the first-conductivity-type semiconductor layer; a second electrode arranged on a lower surface of the second-conductivity-type semiconductor layer and configured to be electrically connected to the second-conductivity-type semiconductor layer, wherein lateral side surfaces of the first optical filter layer and the reflection layer are substantially coplanar. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
Specification