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US 9,817,435 B2Granted
Conductive mesh and touch panel using the same
AssigneeBeijing FUNATE Innovation Technology Co., Ltd.
InventorsLi Qian, Yu-Quan Wang
Life of this patent
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Abstract
A conductive mesh for a touch panel consists of a plurality of carbon nanotube composite wires. The carbon nanotube composite wire comprises a carbon nanotube wire and a metal layer. The carbon nanotube wire comprises a plurality of carbon nanotubes spirally arranged along an axial direction of the carbon nanotube wire. A touch panel using the conductive mesh is also provided.
Claims6
A conductive mesh comprising:
- a plurality of carbon nanotube composite wires, each of the plurality of carbon nanotube composite wires comprising:
- a carbon nanotube wire;
- and
- a metal layer coated on an outer surface of the carbon nanotube wire,
- wherein the carbon nanotube wire comprises a plurality of carbon nanotubes spirally arranged along an axial direction of the carbon nanotube wire, a diameter of the carbon nanotube wire ranges from 1 micron to 10 microns, a twist of the carbon nanotube wire ranges from 10 r/cm to 300 r/cm, and a metal layer thickness ranges from 1 micron to 5 microns, when the metal layer thickness ranges from 1 micron to 5 microns, a conductivity of the carbon nanotube composite wire reaches 50 percent or more of a conductivity of the metal layer;
- when the metal layer thickness is less than 1 micron, the conductivity of the carbon nanotube composite wire does not increase;
- when the metal layer thickness is larger than 5 microns, the metal layer is oxidized, the conductivity of the carbon nanotube composite wire and a service life of the carbon nanotube composite wire are reduced.
4 more elements
A touch panel comprising:
- a substrate;
- and
- a conductive mesh located on the substrate and comprising a plurality of carbon nanotube composite wires,
- wherein each of the plurality of carbon nanotube composite wires comprises a carbon nanotube wire, and a metal layer located on an outer surface of the carbon nanotube wire;
- the carbon nanotube wire comprises a plurality of carbon nanotubes spirally arranged along an axial direction of the carbon nanotube wire, a carbon nanotube wire diameter ranges from about 1 micron to about 10 microns, a carbon nanotube wire twist ranges from 10 r/cm to 300 r/cm, and a metal layer thickness ranges from 1 micron to 5 microns, when the metal layer thickness ranges from 1 micron to 5 microns, a conductivity of the carbon nanotube composite wire reaches 50 percent or more of a conductivity of the metal layer;
- when the metal layer thickness is less than 1 micron, the conductivity of the carbon nanotube composite wire does not increase;
- when the metal layer thickness is larger than 5 microns, the metal layer is oxidized, the conductivity of the carbon nanotube composite wire and a service life of the carbon nanotube composite wire are reduced.
4 more elements
Dependencies are inferred from the claim text.