1. A touch switch comprising:
an insulating base resin layer;
a conductive layer provided on a surface of the base resin layer; and
an electric capacitance detection circuit electrically connected to the conductive layer to detect an electric capacitance change caused when a human body approaches or contacts to the conductive layer,
wherein the conductive layer is a layer formed by sputtering, vaporization, plating, or metallic painting.
2. A touch switch comprising:
an insulating base resin layer;
a conductive layer provided on a surface of the base resin layer; and
an electric capacitance detection circuit electrically connected to the conductive layer to detect an electric capacitance change caused when a human body approaches or contacts the conductive layer,
wherein the conductive layer is a light-transmissive sputter layer formed by sputtering.
3. The touch switch according to claim 2, wherein the thickness of the sputter layer falls within the range of 5 nm to 500 nm.
4. The touch switch according to claim 2, further comprising a top coat layer coated on a surface of the sputter layer, wherein the top coat layer is a transparent resin film capable of protecting the sputter layer.
5. The touch switch according to claim 1, further comprising a light source that can realize a stepwise change of luminance in accordance with the electric capacitance change detected by the electric capacitance detection circuit.
6. The touch switch according to claim 2, further comprising a light source that can realize a stepwise change of luminance in accordance with the electric capacitance change detected by the electric capacitance detection circuit.
7. The touch switch according to claim 1, wherein the base resin layer is a surface layer of an automotive interior or exterior decorative component.
8. The touch switch according to claim 2, wherein the base resin layer is a surface layer of an automotive interior or exterior decorative component.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A planar directional antenna, comprising:
a substrate, having a first surface and a second surface;
a metal layer, disposed on the second surface, wherein an upper edge of the metal layer forming a concave parabolic curve;
a master antenna, disposed on the substrate, and located within a predetermined range of a focus of the concave parabolic curve; and
an auxiliary antenna, disposed on the substrate and opposite to the master antenna so that the planar directional antenna generates a beam toward a radiation direction.
2. The planar directional antenna according to claim 1, wherein the master antenna comprises:
a first driving element, disposed on the first surface of the substrate, having a first arm and a second arm; and
a second driving element, disposed on the second surface of the substrate and extended out of the metal layer, having a first arm and a second arm, wherein the first arms of the first driving element and the second driving element overlap each other on a vertical projection plane, and the second arms of the first driving element and the second driving element are symmetrical to the radiation direction.
3. The planar directional antenna according to claim 2, wherein the auxiliary antenna is disposed on the first surface of the substrate and opposite to the second arm of the first driving element and is symmetrical to the radiation direction.
4. The planar directional antenna according to claim 2, wherein a total length of the second arm of the first driving element and the second aim of the second driving element is longer than a length of the auxiliary antenna.
5. The planar directional antenna according to claim 2, wherein the upper edge of the metal layer comprises a notch, the first arm of the second driving element is extended from the metal layer where the notch is located at toward the radiation direction, and the first arm of the second driving element is disposed at a center of the notch.
6. The planar directional antenna according to claim 2 further comprising a first reflecting element and a second reflecting element, wherein the first reflecting element and the second reflecting element are disposed on the first surface of the substrate and arranged at both sides of the first arm of the first driving element, and the first reflecting element and the second reflecting element surround the upper edge of the metal layer on the vertical projection plane.
7. The planar directional antenna according to claim 6 further comprising a plurality of vias, wherein the vias pass through the metal layer, the substrate, and the first reflecting element or pass through the metal layer, the substrate, and the second reflecting element so that the first reflecting element or the second reflecting element is electrically connected to the metal layer.
8. The planar directional antenna according to claim 2, wherein the auxiliary antenna is disposed on the second surface of the substrate and opposite to the second arm of the second driving element and is symmetrical to the radiation direction.
9. The planar directional antenna according to claim 2, wherein the auxiliary antenna comprises:
a first sub auxiliary antenna, disposed on the first surface of the substrate and opposite to the second arm of the first driving element; and
a second sub auxiliary antenna, disposed on the second surface of the substrate and opposite to the second arm of the second driving element.
10. The planar directional antenna according to claim 9, wherein the total length of the second arm of the first driving element and the second arm of the second driving element is longer than a total length of the first sub auxiliary antenna and the second sub auxiliary antenna.