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US 2017/0373228 A1Published application
Micro-light emitting diode with metal side mirror
AssigneeApple Inc.
InventorsKevin K.C. CHANG, Hsin-Hua HU, Chein-Hsing HUANG
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Abstract
Light emitting diodes and display systems are disclosed. In an embodiment a light emitting diode (150) includes a p-n diode (120) including a mesa structure (129) that protrudes from a base structure (131). A reflective metallization (130) laterally surrounds the mesa structure, which also includes a quantum well layer of the p-n diode.
Claims20
An LED comprising:
- a p-n diode including:
- a first layer doped with a first dopant type;
- a second layer doped with a second dopant type opposite the first dopant type;
- and
- a quantum well layer between the first layer and the second layer;
- wherein the p-n diode further includes a mesa structure protruding from a base structure, the first layer and quantum well layer are completely contained in the mesa structure, and the second layer is at least partially contained in the base structure;
- a passivation layer that spans sidewalls of the mesa structure and includes an opening on a bottom surface of the mesa structure;
- and
- a reflective metallization layer on the passivation layer and within the opening in the passivation layer on the bottom surface of the mesa structure, wherein the reflective metallization layer laterally surrounds the mesa structure.
6 more elements
A display system comprising:
- a display substrate;
- a plurality of LEDs bonded to a corresponding plurality of driver contacts in a display region of the display substrate;
- wherein each LED comprises:
- a p-n diode including:
- a first layer doped with a first dopant type;
- a second layer doped with a second dopant type opposite the first dopant type;
- and
- a quantum well layer between the first layer and the second layer;
- wherein the p-n diode further includes a mesa structure protruding from a base structure, the first layer and quantum well layers are completely contained in the mesa structure, and the second layer is at least partially contained in the base structure;
- a passivation layer that spans sidewalls of the mesa structure and includes an opening on a bottom surface of the mesa structure;
- and
- a reflective metallization layer on the passivation layer and within the opening in the passivation layer on the bottom surface of the mesa structure, wherein the reflective metallization layer laterally surrounds the mesa structure.
9 more elements
Dependencies are inferred from the claim text.