Flat surface touch device for introducing visual effects
An electrode and an isolation layer of a touch device are the same color, so that a user of the touch device perceives a good visual effect without having to employ expensive optical adhesive and decorative films in the touch device. The front bezel design used in conventional touch devices can thus be abandoned. Further, simpler fabrication, higher yield rate, and lower cost are also achieved.
1. A flat surface touch device comprising:
a first base plate which is a transparent base plate;
a transparent conductive film formed directly on a first side of the first base plate;
a first electrode formed directly on a first side of the transparent conductive film and electrically coupled to the transparent conductive film;
a first isolation layer formed directly on the first side of the transparent conductive film and a first side of the first electrode;
a second electrode formed directly on the first side of the first electrode and a first side of the first isolation layer, wherein a color of the second electrode is different from a color of the first electrode;
a second isolation layer formed directly on a first side of the second electrode and the first side of the first isolation layer, wherein a color of the first isolation layer is the same as the color of the first electrode;
an adhesive layer disposed directly on a first side of the second isolation layer; and
a second base plate formed directly on a first side of the adhesive layer.
2. The flat surface touch device of claim 1 further comprising:
a hard coat disposed on a second side of the first base plate.
3. The flat surface touch device of claim 2 wherein the hard coat is a clear surface or an anti-glare surface.
4. The flat surface touch device of claim 1 wherein the first base plate is a transparent plastic base plate, and materials of the first base plate include glass, Polyethylene terephthalate (PET), Acrylic, Polymethylmethacrylate (PMMA), or Polycarbonate.
5. The flat surface touch device of claim 1 wherein the transparent conductive film includes Indium tin oxide (ITO), Indium zinc oxide (IZO), Aluminum zinc oxide (AZO), transparent conductive polymer film, or transparent metal film.
6. The flat surface touch device of claim 1 wherein the second electrode is distributed in dots or lines on the flat surface touch device.
7. The flat surface touch device of claim 1 wherein the second electrode is a conductive metal wire made of silver, copper or alloy.
8. The flat surface touch device of claim 1 wherein the second base plate is a conductive glass or a conductive transparent plastic base plate, and materials of the second base plate include glass, Polyethylene terephthalate, Acrylic, Polymethylmethacrylate, or Polycarbonate.