JP7321765B2 - touch panel device - Google Patents

Description

The present disclosure relates to touch panel devices.

Conventionally, in order to implement multi-input in a resistive touch panel, the transparent conductive film of the upper substrate and the lower substrate is divided into multiple pieces, and electrodes are provided according to the number of divisions (hereafter referred to as "analog matrix structure"). ) is known (see Patent Document 1, for example).

Japanese Unexamined Patent Application Publication No. 2010-9142

In the conventional analog matrix structure, the user may accidentally touch another position in addition to the original input position. In this case, the inter-electrode resistance value fluctuates due to the contact between the upper substrate and the lower substrate at the position of the erroneous touch, so that the detection voltage at the original input position fluctuates, and there is a possibility that the detection accuracy of the input position may deteriorate. .

An object of the present disclosure is to provide a touch panel device capable of suppressing deterioration in input position detection accuracy.

A touch panel device according to an aspect of an embodiment of the present invention is a resistive touch panel device, comprising: a first substrate; a second substrate arranged to face the first substrate; a first conductive layer formed on a surface of one substrate facing the second substrate; a second conductive layer formed on a surface of the second substrate facing the first substrate; A first electrode pair provided on the first conductive layer, and a second electrode pair provided on the second conductive layer and arranged to face each other in a direction orthogonal to the facing direction of the first electrode pair. , wherein at least one of the first conductive layer and the second conductive layer is divided into a plurality of conductive regions arranged in a direction perpendicular to the facing direction of the electrode pairs provided in the conductive layer, At least one of the plurality of conductive regions has a conductive layer removed portion formed by removing the conductive layer so as to extend along the facing direction of the electrode pairs provided in the conductive region, wherein the conductive layer is removed. A part is a continuous line segment .

According to the present disclosure, it is possible to provide a touch panel device capable of suppressing deterioration in detection accuracy of an input position.

Cross-sectional view of a four-wire touch panel device An exploded perspective view of a four-wire touch panel device Exploded perspective view of analog matrix structure of reference example Top view of analog matrix structure A diagram showing the equivalent circuit of the transparent conductive film when it is not touched Diagram showing the equivalent circuit of the transparent conductive film when there is a problem 1 is an exploded perspective view of a touch panel device according to an embodiment; Schematic diagram showing current flow without slits Schematic diagram showing current flow when a slit is provided FIG. 4 is a diagram showing an equivalent circuit of the transparent conductive film when the touch panel device of the embodiment is touched; A diagram for explaining the arrangement of slits when the target position and the starting position are aligned in the y direction. A diagram showing a modification of the slit shape

Embodiments will be described below with reference to the accompanying drawings. In order to facilitate understanding of the description, the same constituent elements in each drawing are denoted by the same reference numerals as much as possible, and overlapping descriptions are omitted.

In the following description, x-direction, y-direction and z-direction are directions perpendicular to each other. The z direction is the stacking direction of each element of the touch panel device 1 . The z-positive side is denoted as the upper side, and the z-negative direction side is denoted as the lower side. The x direction is the direction in which one opposite side of the rectangular touch panel device 1 extends, and the y direction is the direction in which the other opposite side extends.

<Basic configuration of 4-wire touch panel device>
A four-wire touch panel device will be described with reference to FIGS. 1 and 2. FIG. FIG. 1 is a cross-sectional view of the touch panel device 1 in the stacking direction. FIG. 2 is an exploded perspective view of the touch panel device 1. FIG.

The touch panel device 1 is a resistive four-wire touch panel. In a resistive film type touch panel device, transparent conductive films formed on an upper electrode substrate and a lower electrode substrate are placed so as to face each other, and the contact position between the transparent conductive films is changed by applying force to the upper electrode substrate. to detect.

As shown in FIG. 1, the touch panel device 1 includes a film 10 (first substrate) serving as an upper electrode substrate having a transparent conductive film 30 (first conductive layer) formed on one surface, and a film 10 (first substrate) on one surface. A glass 20 (second substrate) serving as a lower electrode substrate on which a transparent conductive film 40 (second conductive layer) is formed, and spacers 50 are provided so that the transparent conductive films 30 and 40 face each other It is formed by being connected via Such a touch panel is connected to a host computer or the like. The material of the transparent conductive films 30 and 40 is, for example, ITO (Indium Tin Oxide).

As shown in FIG. 2, the film 10 is provided with electrodes 31 and 32 (first electrode pair) along the y-axis direction at both ends in the x-axis direction of the surface on which the transparent conductive film 30 is formed. there is Electrodes 41 and 42 (second electrode pair) are provided along the x-axis direction at both ends in the y-axis direction of the surface of the glass 20 on which the transparent conductive film 40 is formed.

When detecting the position of the point P that touches the touch panel in the touch panel device 1, a voltage is applied to the electrodes 31 and 32 for X-coordinate detection. In the example of FIG. 2, the electrode 31 is grounded and the power supply voltage VDD (eg, 5V) is applied to the electrode 32 . At this time, a voltage is applied to the transparent conductive film 30 so that a potential gradient is generated in the X-axis direction by the electrodes 31 and 32 . When the transparent conductive film 30 and the transparent conductive film 40 contact each other at the point P, the potential at the point P can be detected from the transparent conductive film 40 . Based on this detection potential, the X coordinate at point P can be detected.

Similarly, for Y-coordinate detection, for example, the electrode 41 is grounded and the power supply voltage VDD is applied to the electrode 42 to generate a potential gradient in the Y-axis direction in the transparent conductive film 40 by the electrodes 41 and 42 . When the transparent conductive film 30 and the transparent conductive film 40 contact each other at the point P, the potential at the point P can be detected from the transparent conductive film 30 . The Y coordinate at point P can be detected based on this detection potential.

<Analog matrix structure>
Next, a touch panel device having an analog matrix structure of a reference example will be described with reference to FIGS. 3 to 6. FIG. FIG. 3 is an exploded perspective view of an analog matrix structure of a reference example. FIG. 4 is a plan view of an analog matrix structure.

In the touch panel device 100 shown in FIG. 3, the transparent conductive films 30 and 40 are divided into a plurality of (three in FIG. 3) conductive regions arranged in a direction perpendicular to the opposing direction of the electrode pairs provided on the transparent conductive films. It is

A transparent conductive film 30 as an upper sheet is divided into three along the y direction into three conductive regions 30-1, 30-2, 30-3 (first conductive region group). Each of the conductive regions 30-1, 30-2, 30-3 are electrically isolated from each other. The electrodes 31 and 32 are also divided into three according to the sections of the transparent conductive film 30, and electrodes 31-1, 31-2 and 31 facing each other in the x direction are provided in the conductive regions 30-1, 30-2 and 30-3. -3 and electrodes 32-1, 32-2 and 32-3.

A transparent conductive film 40 as a lower sheet is divided into three along the x-direction into three conductive regions 40-1, 40-2, 40-3 (second conductive region group). Each of the conductive regions 40-1, 40-2, 40-3 are electrically isolated from each other. The electrodes 41 and 42 are also divided into three according to the division of the transparent conductive film 40, and electrodes 41-1, 41-2 and 41 facing each other in the y direction are provided in the conductive regions 40-1, 40-2 and 40-3. -3 and electrodes 42-1, 42-2 and 42-3.

When the transparent conductive film 30 and the transparent conductive film 40 which are divided into three parts are assembled as described above, the touch panel is divided into nine areas as shown in FIG. In the region A where the conductive region 30-1 and the conductive region 40-1 overlap, the input position can be detected by the combination of the electrodes 31-1 and 32-1, and the combination of the electrodes 41-1 and 42-1. In the region B where the conductive region 30-1 and the conductive region 40-2 overlap, the input position can be detected by the combination of the electrodes 31-1 and 32-1 and the electrodes 41-2 and 42-2. In the region C where the conductive region 30-1 and the conductive region 40-3 overlap, the input position can be detected by the combination of the electrodes 31-1 and 32-1, and the combination of the electrodes 41-3 and 42-3. In a region D where the conductive region 30-2 and the conductive region 40-1 overlap, the input position can be detected by the combination of the electrodes 31-2 and 32-2, and the combination of the electrodes 41-1 and 42-1. In the region E where the conductive region 30-2 and the conductive region 40-2 overlap, the input position can be detected by the combination of the electrodes 31-2 and 32-2, and the combination of the electrodes 41-2 and 42-2. In the area F where the conductive area 30-2 and the conductive area 40-3 overlap, the input position can be detected by the combination of the electrodes 31-2 and 32-2, and the combination of the electrodes 41-3 and 42-3. In the region G where the conductive region 30-3 and the conductive region 40-1 overlap, the input position can be detected by the combination of the electrodes 31-3 and 32-3, and the combination of the electrodes 41-1 and 42-1. In the region H where the conductive region 30-3 and the conductive region 40-2 overlap, the input position can be detected by the combination of the electrodes 31-3 and 32-3, and the combination of the electrodes 41-2 and 42-2. In the region I where the conductive region 30-3 and the conductive region 40-3 overlap, the input position can be detected by the combination of the electrodes 31-3 and 32-3, and the combination of the electrodes 41-3 and 42-3.

In the analog matrix structure, even when a plurality of different areas are touched at the same time, each contact position can be detected and multi-input is possible.

However, in the analog matrix structure of FIG. 3, the detection accuracy may be degraded depending on the combination of contact areas. An example of a situation in which the hand holding the pen accidentally touches the touch panel when performing input with the pen on the touch panel will be described. Hereinafter, the position touched intentionally by the user is called "target position P", and the position accidentally touched by a hand or the like is called "handed position T".

As shown in FIG. 3, consider a situation in which the target position P and the touched position T are aligned in the x direction and both are in contact with the conductive region 30-2. In this case, the conductive region 30-2 contacts the central conductive region 40-2 of the bottom sheet at the target position P and the conductive region 40-3 at the hand position T. FIG. The target position P is located in the area E shown in FIG. At this time, when the upper sheet and the lower sheet come into contact with each other over a wide range at the position T where the finger is touched, the resistance value of the fingered position T influences the x-coordinate of the target position P, and the touch panel device is affected by the contact of the pen. A position different from the calculated position may be calculated as the target position, and the position detection accuracy may be degraded.

A decrease in position detection accuracy will be described with reference to FIGS. 5 and 6. FIG. 5 and 6 show equivalent circuits of the transparent conductive films 30 and 40. FIG. FIG. 5 shows an equivalent circuit of the transparent conductive films 30 and 40 when untouched, and FIG. 6 shows an equivalent circuit of the transparent conductive films 30 and 40 when touched.

As shown in FIG. 5, in a state where no tampering has occurred, the transparent conductive film 30 of the upper sheet (the conductive region 30-2 in the example of FIG. 3) has a resistance R1 on the x negative direction side of the target position P, This is equivalent to a circuit in which the resistor R3 on the x positive direction side of the target position P is connected in series. The lower sheet is connected to the upper sheet at the target position P, which is equivalent to a structure in which the contact resistance Rp at the target position P and the resistance R2 of the conductive film in the conducting portion of the lower sheet are connected in series. The resistance of the non-conducting portion of the lower sheet is R4. The magnitude relationship between the resistance R1 and the resistance R3 is determined by the distance between the target position P in the x direction and both ends of the upper sheet in the x direction. In the examples of FIGS. 3 and 4, since the distances from the target position P to both ends of the upper sheet in the x direction are substantially the same, the relationship between the resistance values is R1=R3. Therefore, the potential at the target position P is approximately half the voltage applied between the electrodes of the upper sheet.

In the equivalent circuit of FIG. 5, the inter-electrode resistance value Ra of the upper sheet is expressed by the following equation (1).

Ra=R1+R3 (1)

On the other hand, when a tampering occurs, the upper sheet and the lower sheet are in contact with each other even at the tampering position T. Therefore, as shown in FIG. Connected in parallel. At this time, the combined resistance R at the starting position T is expressed as R=1/(1/R3+1/R4)=(R4/(R3+R4))·R3, and the relationship of R1=R3 is the same as in FIG. , R1>R. The value of the combined resistance R also changes according to the contact area of the upper and lower sheets. The effect of the combined resistance R due to the parallel circuit also increases. As a result, although the center of the conductive region in the x direction is pressed by the pen, the balance between the resistance R1 on the upstream side of the target position P and the combined resistance R on the downstream side is lost, and the voltage applied to the resistance R1 increases, the potential at the target position P becomes less than about half the applied voltage between the electrodes of the upper sheet. As a result, the target position P is recognized as a position shifted in the positive x direction from what it should be.

In the equivalent circuit of FIG. 6, the inter-electrode resistance value Rb of the upper sheet is expressed by the following equation (2).

<Touch panel structure of the embodiment>
Next, the structure of the touch panel device 1 according to the embodiment will be described with reference to FIGS. 7 to 12. FIG. FIG. 7 is an exploded perspective view of the touch panel device 1. FIG. FIG. 8 is a schematic diagram showing current flow in a conductive region without slits. FIG. 9 is a schematic diagram showing current flow in a conductive region provided with slits. FIG. 10 is a diagram showing an equivalent circuit of the transparent conductive films 30 and 40 when the touch panel device 1 is touched. FIG. 11 is a diagram for explaining the arrangement of slits when the target position P and the handed-over position T are aligned in the y direction. FIG. 12 is a diagram showing a modification of the slit shape.

In the analog matrix type touch panel device of FIG. 3, there is a problem that the position detection accuracy of the target position P is lowered if a mistake occurs. In the present embodiment, even when a mistake occurs, the decrease in the position detection accuracy of the target position P is suppressed by suppressing a decrease in the value of the combined resistance R at the position T of the error.

Specifically, as shown in FIG. 7, a plurality of electrodes 41-3 and 42-3 are arranged along the direction in which the electrodes 41-3 and 42-3 face each other in the conductive region 40-3 on the side of the lower sheet that contacts the upper sheet at the hand position T. slit 43 is provided. The slit 43 is arranged so as to divide the portion of the conductive region 40-3 in contact with the upper sheet at the fingering position T into a plurality of parts along the x direction. By providing the slit 43 in this way, the resistance component (R4' in FIG. 10) of the conductive region 40-3 connected in parallel with the resistance component (R3 in FIG. 10) of the conductive region 30-2 is shown in FIG. It is relatively increased from the resistance component R4 of the reference example, thereby suppressing the reduction of the combined resistance R at the touched position T. FIG.

The slit 43 can be formed by removing the conductive material of the conductive region 40-3 using a technique such as etching. That is, the slit 43 is formed by removing the conductive layer (transparent conductive film 40) so as to extend along the facing direction of the electrode pairs 41-3 and 42-3 provided in the conductive region 40-3. It can also be expressed as a "conductive layer removed portion".

As shown in FIG. 8, in the analog matrix structure without slits, the conductive region 40-3 contacting the upper sheet at the starting position T is in the same direction as the contacting conductive region 30-2, that is, in the positive x direction. A current I1 flows. At this time, the path length L1 of the current I1 is the length of the conductive region 40-3 in the x direction, and the width D1 of the path of the current I1 is the electrode 41-3 and the electrode 42-3, which are perpendicular to the flow direction of the current I1. is the distance between

On the other hand, as shown in FIG. 9, in the configuration in which a plurality of slits 43 are provided between the electrode 41-3 and the electrode 42-3, the current I2 flowing through the conductive region 40-3 is increased by x It tries to flow in the x-positive direction from the negative side, but is blocked by the slit 43 . Therefore, the current I2 flows along the y direction along which the slit 43 extends, toward the electrode 41-3 or the electrode 42-3, bypasses the end of the slit 43, and then flows in the positive x direction. Part of I2 flows along the y-direction through the area between the slits 43 toward the center of the conductive area 40-3 in the y-direction, and is again in contact with the conductive area 40-3 at the starting position T. flow to the side. Since the current I2 flows detouring along the extending direction of the slit 43, the total distance L2 of the current flowing through the conductive region 40-3 is longer than the distance L1 in the configuration without the slit 43 shown in FIG. As the path of the current I2 becomes longer, the resistance value (R4' in FIG. 10) of the portion through which the current I2 flows in the conductive region 40-3 becomes relatively larger.

Further, the width D2 of the path of the current I2 flowing between the slits 43 along the y direction is basically the distance between the adjacent slits 43, and is larger than the width D1 of the configuration without the slits 43 shown in FIG. becomes narrower. As the width of the path of the current I2 narrows, the resistance value (R4' in FIG. 10) of the portion through which the current I2 flows in the conductive region 40-3 relatively increases.

That is, as shown in FIG. 10, the resistance R4' of the conductive region 40-3 at the contact position T in the configuration of FIG. 3 (R4<<<R4'). At this time, the combined resistance R at the touched position T is expressed as R=1/(1/R3+1/R4′)=(R4′/(R3+R4′))·R3. As a result, the combined resistance value R at the starting position T increases more than the combined resistance value of the reference example shown in FIG. decreases. As a result, the balance between the upstream and downstream resistance values of the target position P is improved, and the detected potential of the target position P becomes closer to the actual position. As described above, in the touch panel device 1 of the present embodiment, by providing the slit 43 at the touch position T, it is possible to suppress the flow of current between the electrodes, and the fluctuation value of the resistance between the electrodes is minimized. Voltage fluctuations can be suppressed, and as a result, a decrease in input position detection accuracy can be suppressed.

In the equivalent circuit of FIG. 10, the inter-electrode resistance value Rc of the upper sheet is expressed by the following equation (3).

Here, the inter-electrode resistance values Ra, Rb, and Rc of the upper sheet in the equivalent circuits of FIGS. 5, 6, and 10 are compared.

If the target position P is the same, it can be assumed that the resistors R1 to R4 have the same value of 500Ω in each of FIGS. At this time, the inter-electrode resistance value Ra of the upper sheet in the equivalent circuit of FIG.

Ra = R1 + R3 = 500 + 500 = 1000Ω

The inter-electrode resistance value Rb of the upper sheet in the equivalent circuit of FIG.

Rb=R1+(1/(1/R3+1/R4))
=500+(1/(1/500+1/500))
=500+1/(2/500)
= 500 + 250 = 750

As explained with reference to FIG. 9, it is obvious that the resistance value of the resistor R4 increases when the slit 43 is provided in the lower sheet. Assuming that the resistance value of the resistor R4' with the slit is 5000Ω, the inter-electrode resistance value Rc of the upper sheet in the equivalent circuit of FIG. 10 can be calculated as follows using equation (3).

Rc=R1+(1/(1/R3+1/R4')
=500+(1/(1/500+1/5000))
=500+1/(11/5000)
= 500 + 454.54 = 954.54Ω

Thus, the inter-electrode resistance value Rc of the upper sheet in the equivalent circuit of FIG. 10 is 954.54 Ω. becomes possible.

In addition, the resistance values Ra, Rb, and Rc were measured by reproducing the touched area on each of the actual touch panel devices without slits and with slits. The touched area was reproduced by placing a weight of 300 g and a radius of 50 mm on the upper sheet of the touch panel device having a resistance value Ra of 2400Ω between the upper sheet electrodes. In the touch panel device without slits, the measured resistance value Rb was 2260Ω. In addition, in the configuration in which six slits 43 are provided at 10 mm intervals, the measured resistance value Rc is 2360 Ω, and in the configuration in which 13 slits 43 are provided at 5 mm intervals, the measured resistance value Rc is 2398 Ω. .

Thus, even in the actual measurement values, similar to the calculation values of the above equivalent circuit, the structure of the present embodiment with the slits 43 is better than the analog matrix structure without the slits, and the electrodes of the upper sheet at the time of tampering. It can be seen that the resistance value fluctuation between In addition, it was shown that the more the number of slits is increased, the more effectively the resistance value fluctuation is suppressed.

As shown in FIG. 11, when the target position P and the finger position T are aligned in the y direction, the electrode 31-3 and the electrode 32 are placed in the conductive region 30-3 corresponding to the finger finger position T on the upper sheet. By providing a plurality of slits 33 along the direction opposite to -3 (x direction), the error in the measured voltage of the target position P in the y direction can be reduced, and the error in the estimated position of the target position P can be reduced.

The slits 43 may be provided in all the conductive regions of the lower sheet, but may be provided in the conductive regions of the lower sheet at positions where it is assumed that a problem may occur. Although the slits 43 are provided only in the conductive region 40-3 in FIGS. 3 and 7, they may be provided in the conductive regions 40-1 and 40-2 other than the conductive region 40-3. Similarly, the slit 33 may be provided in the conductive region of the upper sheet at a position where it is assumed that a mistake may occur, and should be provided in the conductive region 30-1 or the conductive region 30-2 other than the conductive region 30-3. may

Both the slits 33 and 43 are provided along the facing direction of the electrode pairs in the conductive region where the slits are provided. It does not interfere and does not affect voltage application during position measurement.

Further, in the analog matrix structure, in addition to the configuration in which both the upper sheet and the lower sheet are divided into a plurality of conductive regions as illustrated in FIG. There is also a configuration that For example, in a structure in which the upper sheet is divided into three parts and the lower sheet is not divided, the touch position detection areas of the touch panel are three areas. Even with such a configuration, similar effects can be obtained by providing slits similar to those described above in the sheet on the side of the upper sheet and the lower sheet that are divided into a plurality of conductive regions.

With reference to FIG. 9, it has been described that the provision of the slits 33 and 43 can increase the resistance value of the conductive region in contact with the contact position T. However, for example, as shown in FIG. In some cases, the detour distance of the current is shortened, so the increase in the resistance value may be insufficient and the effect may be weakened. In particular, only the lower sheet is divided into three and the upper sheet is not divided. In the configuration of dividing into three regions, the third region combining C, F, and I, for example, when the target position P is the second region and the touch position T is a portion very close to the electrode in the third region, the slit The effect of increasing the resistance value due to In order to solve such a problem, as shown in FIG. 12, the end portion 44 of the slit 43 may be bifurcated. As a result, the distance D3 between the ends 44 of the adjacent slits 43 becomes smaller than the distance D2 at the central portion of the slits 43 in the y direction. As a result, the width D3 of the current path can be decreased in the vicinity of the electrode to increase the resistance value, and the lack of increase in the resistance value can be compensated for and the positional accuracy can be ensured.

Adjacent slits of the slits 33 provided in the transparent conductive film 30 are preferably arranged at regular intervals. Similarly, the slits 43 provided in the transparent conductive film 40 are preferably arranged at regular intervals. As a result, it is possible to suppress the variation in the resistance value due to the variation in the width of the current path. In addition, since the slits are spaced at equal intervals, regardless of the area of the touched position T, the touched position T is divided by the slits at equal intervals, so it is possible to suppress the variation in the resistance value between the electrodes. be.

The slits 33, 43 preferably have a width of 0.5 mm or less. When the transparent conductive film is removed with a thickness exceeding 0.5 mm, there is no slit in the area including the target position P, so there is no problem in drawing by pen input, etc., but in the area where the slit including the hand position T is provided This is because, when drawing, due to the influence of the slit portion, the portion where the transparent conductive films of the upper sheet and the lower sheet are in contact with each other becomes small, and the portion where the input cannot be detected increases, which affects the linear drawing performance. .

The ends of the slits 33, 43 may or may not contact the electrodes. However, even in the configuration away from the electrodes, it is preferable to be as close to the electrodes as possible, and the distance between the electrodes and the end of the slit is preferably within 1 mm. This is because when the slit is provided at a position more than 1 mm away from the electrode, the current tends to flow in the gap between the electrode and the slit end, and the effect of suppressing the current flow at the touched position T is reduced.

The present embodiment has been described above with reference to specific examples. However, the present disclosure is not limited to these specific examples. Design modifications to these specific examples by those skilled in the art are also included in the scope of the present disclosure as long as they have the features of the present disclosure. Each element included in each specific example described above and its arrangement, conditions, shape, etc. are not limited to those illustrated and can be changed as appropriate. As long as there is no technical contradiction, the combination of the elements included in the specific examples described above can be changed as appropriate.

Although the linear slits 33 and 43 are exemplified in the above embodiment, they may be at least continuous line segments as long as they extend along the direction in which the electrodes face each other. For example, shapes other than straight lines, such as wavy lines, triangular waves, and rectangular waves, may be used. This is because if the slits are dotted lines, the current flows into the gaps between the slits, and the current flow at the touched position T cannot be suppressed.

In the above embodiment, the slits 33 and 43 are illustrated as an example of the conductive layer removed portion formed by removing the conductive layer so as to extend along the facing direction of the electrode pairs provided in the conductive region. Anything other than the slit may be used as long as it is formed by removing the (transparent conductive films 30 and 40) and has no conductivity.

1 touch panel device 10 film (first substrate)
20 glass (second substrate)
30 transparent conductive film (first conductive layer, upper sheet)
30-1, 30-2, 30-3 conductive regions 31-1, 31-2, 31-3 electrodes (first electrode pair)
32-1, 32-2, 32-3 electrodes (first electrode pair)
33 slit (conductive layer removed part)
40 transparent conductive film (second conductive layer, bottom sheet)
40-1, 40-2, 40-3 conductive region 41-1, 41-2, 41-3 electrode (second electrode pair)
42-1, 42-2, 42-3 electrodes (second electrode pair)
43 slit (conductive layer removed part)
44 slit end

Claims (4)

A resistive touch panel device,
a first substrate;
a second substrate arranged to face the first substrate;
a first conductive layer formed on a surface of the first substrate facing the second substrate;
a second conductive layer formed on a surface of the second substrate facing the first substrate;
a first electrode pair provided on the first conductive layer;
a second electrode pair provided on the second conductive layer and arranged to face in a direction perpendicular to the facing direction of the first electrode pair;
with
At least one of the first conductive layer and the second conductive layer is divided into a plurality of conductive regions arranged in a direction perpendicular to the facing direction of the electrode pairs provided in the conductive layer,
At least one of the plurality of conductive regions has a conductive layer removed portion formed by removing the conductive layer so as to extend along the facing direction of the electrode pairs provided in the conductive region,
The conductive layer removed portion is a continuous line segment,
touch panel device. A plurality of the conductive layer removal portions are provided in one conductive region,
The plurality of conductive layer removal portions are arranged at regular intervals,
The touch panel device according to claim 1. The distance from the end of the conductive layer removed portion to the electrode pair provided with the conductive layer removed portion is within 1 mm ,
The touch panel device according to claim 1 or 2. Both ends of the conductive layer-removed portion are bifurcated,
The touch panel device according to any one of claims 1 to 3.

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