Light emitting unit array and projection system
First Claim
1. A light emitting unit array, comprising:
- a plurality of micro-light emitting diodes arranged in an array on a substrate, each of the micro-light emitting diodes comprising;
a reflection layer;
a light emitting structure disposed on the reflection layer, and the light emitting structure comprising a first type doped semiconductor layer, an active layer, and a second type doped semiconductor layer that are stacked sequentially; and
a light collimation structure, wherein at least a portion of the first type doped semiconductor layer, the active layer, and the second type doped semiconductor layer are sandwiched between the reflection layer and the light collimation structure, and the light collimation structure of each of the micro-light emitting diodes is buried in the first type doped semiconductor layer.
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Accused Products
Abstract
A light emitting unit array including a plurality of micro-light emitting diodes (μ-LEDs) is provided. The micro-light emitting diodes are arranged in an array on a substrate, and each of the micro-light emitting diodes includes a reflection layer, a light emitting structure, and a light collimation structure. The light emitting structure is disposed on the reflection layer, and includes a first type doped semiconductor layer, an active layer, and a second type doped semiconductor layer that are stacked sequentially. At least a portion of the first type doped semiconductor layer, the active layer, and the second type doped semiconductor layer are sandwiched between the reflection layer and the light collimation structure.
66 Citations
20 Claims
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1. A light emitting unit array, comprising:
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a plurality of micro-light emitting diodes arranged in an array on a substrate, each of the micro-light emitting diodes comprising; a reflection layer; a light emitting structure disposed on the reflection layer, and the light emitting structure comprising a first type doped semiconductor layer, an active layer, and a second type doped semiconductor layer that are stacked sequentially; and a light collimation structure, wherein at least a portion of the first type doped semiconductor layer, the active layer, and the second type doped semiconductor layer are sandwiched between the reflection layer and the light collimation structure, and the light collimation structure of each of the micro-light emitting diodes is buried in the first type doped semiconductor layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A projection system, comprising:
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a display unit array comprising a plurality of micro-light emitting diodes arranged in an array on a substrate, and each of the micro-light emitting diodes comprising; a reflection layer; a light emitting structure disposed on the reflection layer, and the light emitting structure comprising a first type doped semiconductor layer, an active layer, and a second type doped semiconductor layer that are stacked sequentially; and a light collimation structure, wherein at least a portion of the first type doped semiconductor layer, the active layer, and the second type doped semiconductor layer are sandwiched between the reflection layer and the light collimation structure, and the light collimation structure of each of the micro-light emitting diodes is buried in the first type doped semiconductor layer; and a projection lens set located at the light path of the displaying light of the display unit array. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification