Carbon nanotube based keyboard
First Claim
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1. A keyboard comprising:
- a first substrate comprising a first upper surface and a first lower surface;
a second substrate located apart from the first substrate and comprising a second upper surface and a second lower surface opposite the second upper surface, and the second upper surface facing the first lower surface;
a first electrode layer positioned on the first lower surface and comprising a first conductive layer comprising a carbon nanotube layer structure, a first resistivity of the carbon nanotube layer structure along a first direction is larger than a second resistivity of the carbon nanotube layer structure along a second direction that is substantially perpendicular with the first direction;
a first electrode positioned on one end of the carbon nanotube layer structure and oriented along the first direction;
a plurality of detecting electrodes positioned on another end of the carbon nanotube layer structure and arranged along the first direction;
a second electrode layer positioned on the second upper surface and comprising a second conductive layer; and
a plurality of rows of keys positioned on the first upper surface, each of the plurality of rows is aligned along the second direction, and an amount of the plurality of detecting electrodes is larger than an amount of the plurality of rows,wherein each key is detectable by at least one detecting electrode.
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Abstract
A keyboard includes a first substrate, a second substrate, a first electrode layer and a second electrode layer. The first substrate includes a first upper surface and a first lower surface. The second substrate is located apart from the first substrate and includes a second upper surface and a second lower surface. The second upper surface faces the first lower surface. The first electrode layer is located on the first lower surface and includes a first conductive layer including a carbon nanotube layer structure. The second electrode layer is located on the second upper surface and includes a second conductive layer. A number of keys is located on the first upper surface or the second lower surface.
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Citations
11 Claims
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1. A keyboard comprising:
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a first substrate comprising a first upper surface and a first lower surface; a second substrate located apart from the first substrate and comprising a second upper surface and a second lower surface opposite the second upper surface, and the second upper surface facing the first lower surface; a first electrode layer positioned on the first lower surface and comprising a first conductive layer comprising a carbon nanotube layer structure, a first resistivity of the carbon nanotube layer structure along a first direction is larger than a second resistivity of the carbon nanotube layer structure along a second direction that is substantially perpendicular with the first direction; a first electrode positioned on one end of the carbon nanotube layer structure and oriented along the first direction; a plurality of detecting electrodes positioned on another end of the carbon nanotube layer structure and arranged along the first direction; a second electrode layer positioned on the second upper surface and comprising a second conductive layer; and a plurality of rows of keys positioned on the first upper surface, each of the plurality of rows is aligned along the second direction, and an amount of the plurality of detecting electrodes is larger than an amount of the plurality of rows, wherein each key is detectable by at least one detecting electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification