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US 2019/0198561 A1Published application
Iii-nitride multi-wavelength led for visible light communication enabled by tunnel junctions
AssigneeLumileds LLC
InventorsIsaac Harshman WILDESON, Parijat Pramil DEB, Robert ARMITAGE
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Abstract
A light emitting diode (LED) array may include a first pixel and a second pixel on a substrate. The first pixel and the second pixel may include one or more tunnel junctions on one or more LEDs. The LED array may include a first trench between the first pixel and the second pixel. The trench may extend to the substrate.
Claims20
A light emitting diode (LED) array comprising:
- a first pixel having a first pair of contacts, a second pixel having a second pair of contacts, and a third pixel having a third pair of contacts;
- a first trench separating the first pixel and the second pixel, the first trench extending to a substrate;
- and
- a second trench separating the first pixel and the second pixel, the first second trench extending to a substrate.
1 more element
A system comprising:
- a light emitting diode (LED) array comprising a first pixel, a second pixel, and a third pixel separated by one or more trenches extending to a substrate;
- an LED device attach region having a first pair of electrodes coupled to a first pair of contacts on the first pixel, a second pair of electrodes coupled to a second pair of contacts on the second pixel, and a third pair of electrodes coupled to a third pair of contacts on the third pixel;
- and
- driver circuitry configured to provide independent voltages to one or more of the first pair of electrodes, the second pair of electrodes, and the third pair of electrodes.
1 more element
A method comprising:
- providing a first voltage to first a pixel of a light emitting diode (LED) array;
- providing a second voltage to a second pixel of the LED array, the first pixel and the second pixel separated by a first trench extending to a substrate;
- and
- providing a third voltage to a third pixel of the LED array, the second pixel and the third pixel separated by a second trench extending to the substrate.
1 more element
Dependencies are inferred from the claim text.