JP3194882U - Touch panel having a buffer layer - Google Patents

Abstract

Provided is a touch panel that increases the adhesion between a metal signal line and a visible region electrode in the touch panel and increases the signal transmission stability of the metal signal line and the visible region electrode. A touch panel 2 includes a touch sensor 21. The touch sensor 21 includes a visible region electrode 111, a buffer layer 211 disposed on the visible region electrode 111, and a metal signal line 112 disposed on the buffer layer 211. And have. [Selection] Figure 3

Description

Cross-reference of related application and priority claim

  This application claims the benefit based on Utility Model Application No. 103209222 filed on May 26, 2014 at the Department of Economic Affairs of Taiwan Department of Economic Affairs, the disclosure of which is incorporated herein by reference. It is.

  The present invention relates to a touch panel, and more particularly, to a touch panel having a touch sensor including a buffer layer.

  In the prior art, in the production of a touch sensor for a touch panel, a transparent conductive material is used to produce a view area / viewport electrode, and a highly conductive material (eg, silver, copper, manganese, aluminum (Ag / Cu / Mo / Al)) is used to guide the signal in the visible region to the signal output port, and the signal is connected to the integrated circuit (IC) using a flexible circuit board (FPC). FIG. 1 shows a top view of a conventional touch panel. The touch panel 1 includes a plurality of visible region electrodes 111 and a plurality of metal signal lines 112. A corresponding metal signal line 112 is provided on each of the visible region electrodes 111. FIG. 2 is a diagram illustrating a conventional touch panel. In FIG. 2, the touch panel 1 includes a touch sensor 11, and the touch sensor 11 includes a visible region electrode 111, a metal signal line 112 installed on the visible region electrode 111, and a transparent substrate 113. As shown in FIG. 2, the visible region electrode 111 and the metal signal line 112 are adjacent to the transparent substrate 113, respectively.

  However, when the metal signal line included in the touch sensor of the conventional touch panel is similar in material to the visible region electrode, electric separation is likely to occur between the two. If nano-silver (for example: transparent conductive film ITO) is used for the visible region electrode, and the material of the metal signal line installed on it is the same or similar (contains silver component), after the current is conducted, the visible region The electrode ITO and the silver contained in the metal signal line are released according to the current flow, and the adhesion between the visible region electrode and the metal signal line fails. Therefore, how to increase the adhesion between the metal signal line and the visible region electrode and how to improve the signal transmission stability of the metal signal line and the visible region electrode are very important issues.

  In view of the deficiencies and improvements of the prior art, the desire to improve it has arisen, and the “touch panel having a buffer layer” of the present invention has been created.

  An object of the present invention is a touch panel including a touch sensor, wherein the touch sensor is a visible region electrode, a buffer layer disposed on the visible region electrode, and a metal signal line, and is disposed on the buffer layer. The touch panel having the metal signal line that increases the adhesion between the metal signal line and the visible region and increases the transmission stability of the signal of the visible region electrode and the metal signal line by the stability of the buffer layer. Is to provide.

  Another object of the present invention is a touch panel including a touch sensor, the touch sensor including a transparent substrate, a visible region electrode provided on the transparent substrate, and the visible region electrode adjacent to the transparent substrate. A buffer layer disposed on the transparent substrate, and a metal signal line disposed on the buffer layer adjacent to the transparent substrate, wherein the metal signal line indirectly communicates with the visible region electrode through the buffer layer. It is to provide a connected touch panel.

  Another object of the present invention is a touch panel including a touch sensor, wherein the touch sensor includes a visible region electrode, a buffer layer disposed in the visible region, and a metal signal line disposed in the buffer layer. It is providing the touch panel which has.

  Another object of the present invention is a touch panel including a touch sensor, wherein the touch sensor is disposed between a visible region electrode, a metal signal line, and the visible region electrode and the metal signal line. And providing a touch panel including a buffer layer.

  Another object of the present invention is a touch panel including a touch sensor, wherein the touch sensor includes a visible region electrode, a metal signal line, and the visible region electrode and the metal so as to enhance electrical connection. It is providing a touch panel provided with the connection reinforcement | strengthening apparatus arrange | positioned between signal lines.

In order to make the objects, features, advantages and the like of the present invention more comprehensible, preferred embodiments will be described below in detail with reference to the accompanying drawings.
It is a top view of the conventional touch panel. It is a figure which shows the conventional touch panel. FIG. 3 is a diagram showing a touch panel of a preferred embodiment based on the concept of the present invention.

  FIG. 3 shows a touch panel according to a preferred embodiment of the present invention. In FIG. 3, the touch panel 2 includes a touch sensor 21. The touch sensor 21 includes a visible region electrode 111, a buffer layer 211 provided on the visible region electrode 111, a metal signal line 112 provided on the buffer layer 211, and a transparent substrate 113. The visible region electrode 111, the buffer layer 211, and the metal signal line 112 are adjacent to the transparent substrate 113, respectively.

  As shown in FIG. 3, the buffer layer 211 includes an inorganic conductive material, and is, for example, a carbon paste. As a result, the adhesion between the metal signal line 112 and the visible region electrode 111 is increased, while the stability of the buffer layer 211 increases the signal transmission stability of the visible region electrode 111 and the metal signal line 112. Further, since the material constituting the buffer layer 211 is different from the material constituting the visible region electrode 111 and the metal signal line 112, a buffer effect is generated. As a result, the metal signal line 112 and the visible region electrode 111 included in the touch sensor 11 in the conventional touch panel 1 shown in FIG. The problem of failure of bonding with the wire 112 is avoided.

  That is, according to a preferred embodiment of the present invention, the buffer layer shown in FIG. 3 is a connection strengthening device, which is disposed between the visible region electrode 111 and the metal signal line 112 and electrically connected between the two. Strengthen the connection. Of course, if a person skilled in the art increases the connection adhesion force between the visible region electrode 111 and the metal signal line 112 by other processing methods, the same purpose of enhancing the connection force between the visible region electrode 111 and the metal signal line 112 is obtained. (For example, when the visible region electrode and the metal signal line 112 are fitted in a concavo-convex shape and are closely attached to each other, the adhesion between them can be increased).

The following will be further described with more examples.
Embodiment 1, a touch panel including a touch sensor, wherein the touch sensor includes a transparent substrate, a visible region electrode provided on the transparent substrate, and a buffer disposed on the visible region electrode adjacent to the transparent substrate. And a metal signal line disposed in the buffer layer adjacent to the transparent substrate, wherein the metal signal line is indirectly connected to the visible region electrode through the buffer layer. .

  Example 2, A touch panel including a touch sensor, wherein the touch sensor includes a visible region electrode, a buffer layer disposed on the visible region electrode, and a metal signal line disposed on the buffer layer. .

  Example 3, The touch panel according to Example 2, wherein the buffer layer includes an inorganic conductive material.

  Example 4, The touch panel according to Example 3, wherein the inorganic conductive material is a carbon paste.

  Example 5 The buffer layer is for increasing the adhesion between the visible region electrode and the metal signal line, and the visible region electrode and the metal are improved depending on the stability of the inorganic conductive material. The touch panel according to Example 3, which further enhances signal transmission stability of the signal line.

  Example 6, the metal signal line has a first thickness in a range of 3 μm to 15 μm, the buffer layer has a second thickness in a range of 3 μm to 15 μm, and the visible region electrode has a thickness of 7 μm or less. The touch panel as described in Example 2 having a third thickness.

  Example 7, A touch panel including a touch sensor, wherein the touch sensor includes a visible region electrode, a metal signal line, and a buffer layer disposed between the visible region electrode and the metal signal line. Including touch panel.

  Example 8 The buffer layer is in close contact with the visible region electrode and the metal signal line, the buffer layer is an inorganic conductive material, and the buffer layer is between the visible region electrode and the metal signal line. The touch panel further enhances the transmission stability of the visible region electrode and the signal of the metal signal due to the stability of the inorganic conductive material.

  Example 9 The metal signal line has a first thickness in a range of 3 μm to 15 μm, the buffer layer has a second thickness in a range of 3 μm to 15 μm, and the visible region electrode has a thickness of 7 μm or less. The touch panel as described in Example 7 having a third thickness.

  Example 10, A touch panel including a touch sensor, wherein the touch sensor is between a visible region electrode, a metal signal line, and the visible region electrode and the metal signal line so as to enhance electrical connection. A touch panel comprising a connection strengthening device disposed on the touch panel.

  Based on the above contents, the present invention is a touch panel including a touch sensor, wherein the touch sensor is a visible region electrode, a buffer layer disposed on the visible region electrode, and a metal signal line, and the buffer layer includes The metal signal line installed, increasing the adhesion between the metal signal line and the visible region, and increasing the signal transmission stability of the visible region electrode and the metal signal line by the stability of the buffer layer; The touch panel which has this is provided, and has the inventive step and novelty surely.

  Accordingly, changes, modifications, and adjustments made by those skilled in the art based on the above-described embodiments should be construed as being included in the protection scope of the scope of the appended invention.

DESCRIPTION OF SYMBOLS 1 Conventional touch panel 11 Conventional touch sensor 111 Visible region electrode 112 Metal signal line 113 Transparent substrate 2 Touch panel 21 Touch sensor 211 Buffer layer

Claims (10)

A touch panel including a touch sensor,
The touch sensor includes a transparent substrate,
A visible region electrode provided on the transparent substrate;
A buffer layer disposed on the visible region electrode adjacent to the transparent substrate;
A metal signal line disposed in the buffer layer adjacent to the transparent substrate,
The touch panel, wherein the metal signal line is indirectly connected to the visible region electrode through the buffer layer. A touch panel including a touch sensor,
The touch sensor is
A visible region electrode;
A buffer layer disposed on the visible region electrode;
And a metal signal line disposed on the buffer layer.   The touch panel as set forth in claim 2, wherein the buffer layer includes an inorganic conductive material.   The touch panel according to claim 3, wherein the inorganic conductive material is a carbon paste.   The buffer layer is for enhancing the adhesion between the visible region electrode and the metal signal line, and the signal of the visible region electrode and the metal signal line depends on the stability of the inorganic conductive material. The touch panel according to claim 3, further improving transmission stability of the touch panel. The metal signal line has a first thickness in the range of 3 μm to 15 μm,
The buffer layer has a second thickness in the range of 3 μm to 15 μm;
The touch panel as set forth in claim 2, wherein the visible region electrode has a third thickness of 7 μm or less. A touch panel including a touch sensor,
The touch sensor is
A visible region electrode;
Metal signal lines;
A touch panel comprising: a buffer layer disposed between the visible region electrode and the metal signal line. The buffer layer is in close contact with the visible region electrode and the metal signal line,
The buffer layer is an inorganic conductive material,
The buffer layer is for enhancing adhesion between the visible region electrode and the metal signal line, and the signal of the visible region electrode and the metal signal is transmitted according to the stability of the inorganic conductive material. The touch panel according to claim 7, further improving stability. The metal signal line has a first thickness in the range of 3 μm to 15 μm,
The buffer layer has a second thickness in the range of 3 μm to 15 μm;
The touch panel as set forth in claim 7, wherein the visible region electrode has a third thickness of 7 μm or less. A touch panel including a touch sensor,
The touch sensor is
A visible region electrode;
Metal signal lines;
A touch panel comprising: a connection strengthening device disposed between the visible region electrode and the metal signal line so as to enhance electrical connection.

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