JP3177933U - Capacitive touch panel unit - Google Patents

Abstract

Provided is a capacitive touch panel unit that can realize a significant reduction in thickness and can significantly reduce manufacturing costs.
A capacitive touch panel unit according to the present invention includes a transparent substrate, a conductive layer, and a protective layer. The transparent substrate 10 has a first side 101 and a second side 102 opposite to the first side 101. The conductive layer 11 is provided on the second side 102. The protective layer 12 is bonded to the side of the conductive layer 11 opposite to the transparent substrate 10. With the capacitive touch panel unit 1 of the present invention, the installation of the conductive layer 11 can be reduced, the manufacturing cost can be reduced, and the thickness can be reduced.
[Selection] Figure 1

Description

  The present invention relates to a capacitive touch panel unit, and more particularly to a capacitive touch panel unit that can achieve a significant reduction in thickness and can significantly reduce manufacturing costs.

  As information technology and communication networks evolve rapidly, the associated electronic products are gradually becoming more popular with individuals. Along with this, touch panels are rapidly developing. Touch panels are mainly classified into a resistive film type, a capacitance type, an electromagnetic induction type, and an optical type depending on the detection principle. Among them, the capacitive touch panel is widely adopted because it has characteristics of dust resistance, fire resistance, and high analysis. The principle of the capacitive touch panel is to detect the contact position by a change in capacitance, and due to the change in capacitance generated between the electrodes when a contact object (conductor such as a finger) approaches, The coordinates of the contact point are determined.

  Capacitive touch panels are gradually becoming the mainstream of touch panel technology, and are used in electronic products such as mobile phones, tablet computers, portable music players, portable electronic devices (equipment), various display devices, and monitoring devices. Applied. In an electronic device having such a capacitive touch panel, a change in the position of a finger and a click selection situation are detected by detecting a change in the capacitance formed by a weak current of a human body, and the operation of the electronic product is detected. And control is performed.

  In general, a two-layer touch panel is applied to the capacitive touch panel. In the two-layer type touch panel, ITO layers that are combined in correspondence with each other are formed on a transparent conductive substrate by a plurality of screen printing or photolithography. Most of the material of the transparent conductive substrate is glass. The transparent conductive substrate has a high unit price and is liable to be lost when manufactured. If a defective product is generated in the process of manufacturing the touch panel, the entire touch panel must be discarded and cannot be reused. For this reason, the manufacturing cost is wasted. In addition, when forming the ITO layer on each transparent conductive substrate, it is necessary to carry out multiple times while adapting screen printing or photolithography, so that the manufacturing process is complicated and the manufacturing cost is high. Further, since the touch panel is a two-layer touch panel, the thickness of the entire electronic device is increased, and the portable electronic device cannot be reduced in thickness and weight. For this reason, improvement of these faults was calculated | required.

That is, the conventional capacitive touch panel has the following drawbacks (1) and (2).
(1) Thick.
(2) Production is complicated.
(3) Manufacturing cost is high.

The main object of the present invention is to provide a capacitive touch panel unit that can achieve a significant reduction in thickness.
Another object of the present invention is to provide a capacitive touch panel unit that can greatly reduce the manufacturing cost.

  In order to solve the above-described problem, the capacitive touch panel of the present invention includes a transparent substrate, a conductive layer, and a protective layer.

  The transparent substrate has a first side and a second side opposite to the first side. The conductive layer is provided on the second side. The protective layer is bonded to the side of the conductive layer opposite to the transparent substrate.

  By the structural design of the capacitive touch panel unit of the present invention, the installation of the conductive layer can be reduced, the manufacturing cost can be reduced, and the thickness can be reduced.

1 is an exploded cross-sectional view illustrating a capacitive touch panel according to an embodiment of the present invention. 1 is a cross-sectional view illustrating a capacitive touch panel according to an embodiment of the present invention.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments showing the object, structure and functional characteristics of the present invention will be described in detail with reference to the drawings.

  Please refer to FIG. 1 and FIG. FIG. 1 is an exploded cross-sectional view illustrating a capacitive touch panel according to an embodiment of the present invention. FIG. 2 is a cross-sectional view illustrating a capacitive touch panel according to an embodiment of the present invention. As shown in FIGS. 1 and 2, a capacitive touch panel unit 1 according to an embodiment of the present invention includes a transparent substrate 10, a conductive layer 11, and a protective layer 12. The transparent substrate 10 will be described by exemplifying a case where the material is glass, but is not limited thereto. That is, the transparent substrate 10 is made of glass, polyethylene terephthalate (PET), polycarbonate (Polycarbonate: PC), polyethylene (Polyethylene: PE), polyvinyl chloride (Polyvinyl chloride: PVC), polypropylene (Polypropylene: PP). It consists of polystyrene (Polystyrene: PS), polymethyl methacrylate (Polymethyl methacrylate: PMMA) or cyclic olefin copolymer (Cyclic Olefin Copolymer: COC).

  The transparent substrate 10 has a first side 101 and a second side 102 opposite to the first side 101. The conductive layer 11 is disposed on the second side 102. The conductive layer 11 is an ITO (Indium Tin Oxide) or ATO (Antimony Tin Oxide) film. In the present embodiment, the conductive layer 11 is formed on the second side 102 by sputtering, but is not limited thereto. The conductive layer 11 may be formed on the second side 102 by gel application, electroplating or vapor deposition.

As shown in FIGS. 1 and 2, the protective layer 12 is bonded to the opposite side of the conductive layer 11 from the transparent substrate 10. The material of the protective layer 12 is silicon nitride (SiNx), silicon dioxide (SiO ₂ ), or silicon carbide (SiC). In this embodiment, the protective layer 12 is a thin film formed by gel application, electroplating, vapor deposition, deposition, or sputtering. The protective layer 12 is bonded to the opposite side of the conductive layer 11 from the transparent substrate 10 to protect it. Since the capacitive touch panel unit 1 according to an embodiment of the present invention performs detection by using one conductive layer 11 and realizes touch control, the installation of the conductive layer 11 can be reduced and the manufacturing cost can be reduced. it can. Further, by using the protective layer 12 having a thin film structure, the entire touch panel unit can be thinned.

As can be seen from the above, the capacitive touch panel unit of the present invention has the following advantages (1) to (3) as compared with the prior art.
(1) The thickness is thin.
(2) The manufacturing steps are simple.
(3) Manufacturing cost is low.

  The above description shows preferred embodiments of the present invention, and the features of the present invention are not limited to these. Any changes or modifications that can be easily considered by those skilled in the art within the scope of the present invention shall be included in the claims of the utility model registration of the present invention.

DESCRIPTION OF SYMBOLS 1 Capacitive touch panel unit 10 Transparent substrate 101 1st side 102 2nd side 11 Conductive layer 12 Protective layer

Claims (4)

A capacitive touch panel unit comprising a transparent substrate, a conductive layer and a protective layer,
The transparent substrate has a first side and a second side opposite to the first side,
The conductive layer is provided on the second side;
The capacitive touch panel unit, wherein the protective layer is bonded to a side of the conductive layer opposite to the transparent substrate.   The protective layer is a thin film structure formed by gel application, electroplating, vapor deposition, deposition, or sputtering, and the thin film structure is made of silicon nitride, silicon dioxide, or silicon carbide. The capacitive touch panel unit described.   2. The static layer according to claim 1, wherein the conductive layer has a thin film structure formed by gel application, electroplating, vapor deposition, deposition, or sputtering, and the thin film structure is made of ITO, IZO, or ATO. Capacitive touch panel unit.   The capacitance type according to claim 1, wherein the transparent substrate is made of glass, polyethylene terephthalate, polycarbonate, polyethylene, polyvinyl chloride, polypropylene, polystyrene, polymethyl methacrylate, or a cyclic olefin copolymer. Touch panel unit.

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