CN103455219A - Capacitive touch panel unit - Google Patents

Abstract

The invention is a capacitive touch panel unit, comprising: the transparent substrate is provided with a first side and a second side opposite to the first side; the conducting layer is covered on the second side; the protective layer and the conductive layer are correspondingly attached to the other side of the transparent substrate, and the capacitive touch panel unit can effectively achieve the effects of reducing the arrangement of the conductive layer, reducing the manufacturing cost and reducing the overall thickness.

Description

Capacitive touch panel unit

technical field

The present invention relates to a capacitive touch panel unit, in particular to a capacitive touch panel unit with the effects of greatly reducing thickness and reducing production cost.

Background technique

With the rapid development of information technology and communication networks, electronic information products are gradually popularized by individuals, and the corresponding touch panels are also developing rapidly. Today, touch panels are mainly divided into resistive, capacitive, and electromagnetic based on their different sensing principles. Type and optical type, etc., among them, the capacitive touch panel structure has the characteristics of dustproof, fireproof and high resolution, so it is widely used. The working principle of the capacitive touch panel is mainly confirmed by the change of capacitance. For the position of the contact point, the coordinates of the contact point are determined by using the proximity of the touch object (such as a conductor such as a finger) to generate a capacitive electrical change between the electrodes.

Capacitive touch panels have gradually become the mainstream of touch technology and are used in various electronic information products, such as mobile phones, tablet computers, walkmans, handheld electronic devices (equipment), various displays, monitors, etc. etc. The principle of the electronic information product of the capacitive touch panel is to use the method of sensing the change of the capacitance value formed by the weak current of the human body to achieve the purpose of touch control, and then measure the position change and click status of the finger, and achieve purpose of manipulation.

The general capacitive touch panel is mainly used as a double-layer touch panel, and the double-layer touch panel performs multiple screen printing processes or yellow photolithography processes on each transparent conductive substrate, which can be matched with each other. Indium tin oxide (ITO) layer, the material of this kind of transparent conductive substrate is mostly glass, due to the high unit price of transparent conductive substrate, it will consume a lot of production materials repeatedly during manufacture, when defective products are produced during the touch panel manufacturing process, it must be The entire touch panel is scrapped and cannot be recycled, resulting in waste of cost. Moreover, each transparent conductive substrate needs to be respectively provided with the above-mentioned indium tin oxide (ITO) layer, and it is subjected to multiple screen printing processes or yellow photolithography processes. Correspondingly, its manufacturing steps are cumbersome and the manufacturing cost is greatly increased at the same time, and its double-layer touch panel will also increase the overall thickness of the electronic device, which cannot meet the needs of portable electronic devices. Therefore, the overall thickness is relatively thick Shortcomings such as must need to be improved to some extent; Therefore known technology has following shortcoming:

1. The thickness is thicker;

2. Manufacture is cumbersome;

3. The manufacturing cost is relatively high.

Therefore, how to solve the above common problems and deficiencies is the direction that the inventors of this case and related manufacturers engaged in this industry want to study and improve.

Contents of the invention

Therefore, in order to solve the above-mentioned shortcomings of the prior art, the main purpose of the present invention is to provide a capacitive touch panel unit with reduced overall thickness.

Another object of the present invention is to provide a capacitive touch panel unit which can greatly reduce the manufacturing cost.

To achieve the above object, the present invention provides 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 covered on the second side; the protective layer is correspondingly attached to the other side of the transparent substrate opposite to the conductive layer In combination, through the design of the capacitive touch panel unit of the present invention, the effect of reducing the arrangement of conductive layers to reduce the manufacturing cost and the overall thickness can be effectively achieved.

Description of drawings

Fig. 1 is a schematic diagram of an exploded cross-section of a preferred embodiment of the present invention;

Fig. 2 is a combined sectional schematic view of a preferred embodiment of the present invention;

Fig. 3 is a combined cross-sectional schematic view of the second preferred embodiment of the present invention.

Description of main component symbols

Capacitive Touch Panel Unit 1

Transparent Substrate 10

First side 101

second side 102

masking layer 103

Wire layer 104

Flexible Substrate 105

Conductive adhesive 106

Conductive layer 11

protective layer 12

Touch Area 2

Non-touch area 3

Detailed ways

The above-mentioned purpose of the present invention and its structural and functional characteristics will be described according to the preferred embodiments of the accompanying drawings.

The present invention is a capacitive touch panel unit, please refer to Fig. 1 and Fig. 2, which show a schematic diagram of an exploded section and a schematic diagram of a combined section of a preferred embodiment of the present invention; the capacitive touch panel unit 1 includes: a The transparent substrate 10, a conductive layer 11 and a protective layer 12, wherein the material of the transparent substrate 10 is illustrated with glass in this preferred implementation, but it is not limited thereto, it can also be selected as polyethylene terephthalate (Polyethylene Terephthalate, PET), polycarbonate (Poly Carbonate, PC), polyethylene (polyethylene, PE), polyvinyl chloride (Poly Vinyl Chloride, PVC), polypropylene (PolyPropylene, PP), polystyrene (Poly Styrene , PS), polymethylmethacrylate (Polymethylmethacrylate, PMMA), cycloolefin copolymer (cyclo olefin copolymer, COC) any one of the materials.

In addition, the aforementioned transparent substrate 10 has a first side 101 and a second side 102 opposite to the first side, the conductive layer 11 is arranged on the second side 102, and its material is indium tin oxide (Indium TinOxide , ITO) or antimony tin oxide (Antimony Tin Oxide, ATO) or indium zinc oxide (indiumzinc oxide, IZO) thin film; On the second side 102, but not limited thereto, it can also be formed on the second side 102 by gel coating, electroplating or vapor deposition during specific implementation, which will be stated first.

1 and 2, the protective layer 12 is correspondingly bonded on the other side of the conductive layer 11 opposite to the transparent substrate 10, and its material is silicon nitride (SiNx), silicon dioxide (SiO ₂ ), silicon carbide (SiC) any of them; and the protective layer 12 in this preferred embodiment is formed by coating gel, electroplating, evaporation, deposition or sputtering any of the film structures on the conductive layer 11. The other side of the transparent substrate 10 is covered and protected.

Please also refer to FIG. 3, which is a combined cross-sectional schematic diagram of a second preferred embodiment of the capacitive touch panel structure of the present invention. As shown in the figure, the capacitive touch panel structure includes a transparent substrate 10, a shielding layer 103, a Conductive layer 11, a wire layer 104, a flexible substrate 105 and a protective layer 12;

The transparent substrate 10 has a first side 101 and a second side 102, and the transparent substrate 10 defines a touch area 2 at a central position and a non-touch area 3 at a side position, wherein the transparent substrate 10 The material of 10 is illustrated with glass in this preferred implementation, but it is not limited thereto, and can also be selected as polyethylene terephthalate (Polyethylene Terephthalate, PET), polycarbonate (PolyCarbonate, PC), polyethylene (polyethylene, PE), polyvinyl chloride (Poly Vinyl Chloride, PVC), polypropylene (Poly Propylene, PP), polystyrene (Poly Styrene, PS), polymethylmethacrylate (Polymethylmethacrylate, PMMA), cycloolefin Copolymer (cyclo olefin coplymer, COC) any material.

The shielding layer 103 is disposed on the second side 102 of the transparent substrate 10 and is relatively disposed at the position of the non-touch area 3, and the region covered with the shielding layer 103 on the transparent substrate 10 is defined as the The non-touch area 3, on the contrary, the area on the transparent substrate 10 that is not covered with the shielding layer 103 is defined as the touch area 2, and the shielding layer 103 of this embodiment can be, for example, made of opaque (transparent Light) and insulating material printed or coated.

The conductive layer 11 is covered at the position of the second side 102 of the transparent substrate 10 and is relatively arranged at the position of the touch area 2, and part of the conductive layer 11 extends from the position of the second side 102 to the shielding area. Layer 103 is located on the other side of the transparent substrate 10, and its material is indium tin oxide (IndiumTin Oxide, ITO) or antimony tin oxide (Antimony Tin Oxide, ATO) or indium zinc oxide (indiumzinc oxide, IZO) thin film; and the conductive layer 11 is formed on the second side 102 by sputtering in this preferred embodiment, but it is not limited thereto. Or vapor deposition is formed on the second side 102, which will be described first.

And the wire layer 104 is arranged in the non-touch area 3 and opposite to the second side 102 of the shielding layer 103, and part of the wire layer 104 extends to the conductive layer 11 opposite to the shielding layer. The position on the other side of the layer 103 is electrically connected to the conductive layer 11 , and the wire layer 104 can be made of silver paste, copper or molybdenum or other metal materials.

The flexible substrate 105 is arranged in the non-touch area 3, and there is a conductive glue 106 between the flexible substrate 105 and the wire layer 104, the flexible substrate 105 is attached to one side of the conductive glue 106, and the flexible substrate 105 is attached on the other side. The wire layer 104 is attached to one side, and the conductive paste 106 is an anisotropic conductive film (Anisotropic Conductive Film, ACF) or anisotropic conductive paste 106 (Anisotropic conductive paste, ACP).

The protective layer 12 is correspondingly attached to the other side of the conductive layer 11 opposite to the transparent substrate 10. In other words, the protective layer 12 is correspondingly attached to the other side of the conductive layer 11 opposite to the transparent substrate 10, and its material is Any one of silicon nitride (SiNx), silicon dioxide (SiO ₂ ), and silicon carbide (SiC); and the protective layer 12 is coated with gel, electroplating, evaporation, deposition or sputtering in this preferred embodiment The thin film structure formed by plating any one of the ways is coated on the other side of the conductive layer 11 opposite to the transparent substrate 10 for protection, and the protective layer 12 is simultaneously coated on the flexible substrate 105 and the conductor layer 104 on the other side of the transparent substrate 10. One side and draped for protection.

Therefore, the design of the capacitive touch panel unit 1 of the present invention can detect and complete the touch with a single conductive layer 11, so as to achieve the effect of reducing the configuration of the conductive layer 11 and reducing the manufacturing cost, and at the same time use it to form a thin film structure The protective layer 12 achieves the effect of reducing the overall thickness.

As described above, the present invention has the following advantages compared to known technologies:

1. Reduce the overall thickness;

2. The manufacturing steps are simple;

3. Low manufacturing cost.

According to, the above description is only a preferred embodiment of the present invention, but the features of the present invention are not limited thereto, and any changes or modifications that can be easily conceived by those skilled in the art within the field of the present invention are all Should be covered in the scope of patent application of the present invention below.

Claims (9)

1. a capacitance type touch-control panel unit, is characterized in that, comprising:

One transparency carrier, it has the second side of one first side and contrary this first side;

One conductive layer, be coated on this second side; And

One protective seam, the corresponding laminating of transparency carrier opposite side relative to aforementioned conductive layer.

2. capacitance type touch-control panel as claimed in claim 1 unit; it is characterized in that; described protective seam is that the material of this membrane structure is chosen as silicon nitride SiNx, silicon dioxide SiO with coating gel, plating, evaporation, deposition or the sputter arbitrary formed membrane structure of mode wherein ₂, silit SiC is wherein arbitrary.

3. capacitance type touch-control panel as claimed in claim 1 unit, it is characterized in that, described conductive layer is with coating gel, plating, evaporation or the sputter arbitrary formed membrane structure of mode wherein, and this membrane structure is that indium tin oxide ITO, indium-zinc oxide IZO and antimony tin oxide ATO are wherein arbitrary.

4. capacitance type touch-control panel as claimed in claim 1 unit, it is characterized in that, the material of this transparency carrier is chosen as wherein arbitrary material of glass, polyethylene terephthalate, polycarbonate, tygon, Polyvinylchloride, polypropylene, polystyrene, polymethylmethacrylate and cyclic olefine copolymer.

5. a capacitance type touch-control panel unit, is characterized in that, comprising:

One transparency carrier, have one first side and one second side, and define respectively a Touch Zone and a non-Touch Zone in central position and lateral location place;

One shielding layer, be located at the non-Touch Zone of aforementioned the second side;

One conductive layer, be coated in the Touch Zone of this second side, and partly extend to the shielding layer position of this second side;

One conductor layer, be located at a side of contrary this second side of this shielding layer and connect described conductive layer;

One flexible base plate, be located at this non-Touch Zone, has a conducting resinl between this flexible base plate and conductor layer, and be electrically connected by this conducting resinl and this conductor layer;

One protective seam, the corresponding laminating of transparency carrier opposite side relative to aforementioned conductive layer.

6. capacitance type touch-control panel as claimed in claim 5 unit; it is characterized in that; described protective seam is that the material of this membrane structure is chosen as silicon nitride SiNx, silicon dioxide SiO with coating gel, plating, evaporation, deposition or the sputter arbitrary formed membrane structure of mode wherein ₂, silit SiC is wherein arbitrary.

7. capacitance type touch-control panel as claimed in claim 5 unit, it is characterized in that, described conductive layer is with coating gel, plating, evaporation or the sputter arbitrary formed membrane structure of mode wherein, and this membrane structure is that indium tin oxide ITO, indium-zinc oxide IZO and antimony tin oxide ATO are wherein arbitrary.

8. capacitance type touch-control panel as claimed in claim 5 unit, it is characterized in that, the material of described transparency carrier is chosen as wherein arbitrary material of glass, polyethylene terephthalate, polycarbonate, tygon, Polyvinylchloride, polypropylene, polystyrene, polymethylmethacrylate and cyclic olefine copolymer.

9. capacitance type touch-control panel as claimed in claim 5 unit, is characterized in that, described protective seam is coated in flexible base plate and the relative transparency carrier opposite side of conductor layer simultaneously.

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