Light emitting array structure and display
Disclosed is a light-emitting array structure having a substrate, a plurality of light-emitting pixel units, a plurality of first signal wires, a plurality of second signal wires, and an encapsulating layer. The light-emitting pixel units are arranged in array on the substrate. Each light-emitting pixel unit includes a driving chip, a first flat layer, a first redistribution layer, a second flat layer, a second redistribution layer, and a light-emitting diode. Each first signal wire is electrically connected to a corresponding one of the first redistribution layers and extends in a first direction. The second signal wires extend in a level different from the first signal wires. Each second signal wire is electrically connected to a corresponding one of the second redistribution layers and extends in a second direction different from the first direction. The encapsulating layer covers the light-emitting pixel units, the first and second signal wires, and the substrate.
1. A light-emitting array structure, comprising:
a substrate;
a plurality of light-emitting pixel units arranged in array on the substrate, each of the light-emitting pixel units comprising:
a driver chip disposed on the substrate;
a first flat layer disposed on the substrate and covers the driver chip;
a layer of a plurality of first redistribution layers disposed on the first flat layer and electrically connected to the driver chip;
a second flat layer disposed on the first flat layer and covers the first redistribution layers;
a layer of a plurality of second redistribution layers disposed on the second flat layer and electrically connected to the layer of the plurality of first redistribution layers; and
a light-emitting diode, flip-chip bonded to and in contact with the second redistribution layers;
a plurality of first signal wires, wherein each of the first signal wires is electrically connected to a corresponding one of the first redistribution layers and extends in a first direction;
a plurality of second signal wires extending in a level different from the first signal wires, wherein each of the second signal wires is electrically connected to a corresponding one of the second redistribution layers and extends in a second direction different from the first direction; and
an encapsulating layer covering the light-emitting pixel units, the first signal wires, the second signal wires, and the substrate;
wherein each of the second redistribution layers has an upper surface, and the upper surface is a blackened surface.
2. The light-emitting array structure of claim 1 , wherein the first signal wires and the first redistribution layers are located at a same level.
3. The light-emitting array structure of claim 1 , wherein the second signal wires and the second redistribution layers are located at a same level.
4. The light-emitting array structure of claim 1 , wherein the first direction is substantially perpendicular to the second direction.
5. The light-emitting array structure of claim 1 , further comprising a reflective layer disposed on a top surface of each of the second flat layers.
6. The light-emitting array structure of claim 5 , wherein the reflective layer comprises a silver reflector, an aluminum reflector, or a distributed Bragg reflector.
7. The light-emitting array structure of claim 1 , wherein each of the first signal wires has an upper surface, and the upper surface is a blackened surface.
8. The light-emitting array structure of claim 1 , wherein each of the second signal wires has an upper surface, and the upper surface is a blackened surface.
9. A display, comprising:
a driver substrate; and
a plurality of light-emitting array structures of claim 1 disposed on the driver substrate.