CN101739188A - Multi-point touch resistance type touch panel and multi-touch point detection method thereof - Google Patents

Abstract

A multi-touch resistance type touch panel and a multi-touch detection method thereof are provided. The multi-point touch resistance type touch panel comprises a first substrate, a second substrate and a spacing element, wherein the spacing element is arranged between the first substrate and the second substrate. The first substrate has a first transparent electrode, two first conductive electrodes and two second conductive electrodes, wherein the first conductive electrodes are disposed in parallel at two boundaries of the first transparent electrode, and the second conductive electrodes are disposed in parallel at the other two boundaries of the first transparent electrode and perpendicular to the first conductive electrodes. The second substrate has a plurality of second transparent electrodes, wherein the second transparent electrodes are distributed over a surface of the second substrate facing the first transparent electrodes along a first axis direction, and the second transparent electrodes themselves extend along a second axis direction perpendicular to the first axis direction.

Description

Multi-touch resistive touch panel and detection method for multi-touch points

technical field

The invention relates to a touch panel, and in particular to a multi-touch resistive touch panel.

Background technique

Since Apple Computer released the touch panel business opportunities caused by the iPhone in early 2007, touch panels have also driven the application of other consumer electronics products, such as: general communication mobile phones, notebook computers, multimedia portable playback devices (such as MP3, MP4, etc.) , personal digital assistant (personal digital assistant, PDA), global satellite positioning system (global positioning system, GPS) device, ultra-mini computer (ultra mobile personal computer, UMPC) and other portable electronic devices. According to market research firm iSuppli, the penetration rate of global touch panels in the mobile phone market will grow rapidly under the stimulation of the iPhone, and it is estimated that it will reach US$4.4 billion in 2012.

As far as the types of touch panel technologies are concerned, resistive, capacitive, infrared and ultra-infrared touch panels are more common in the market. However, so far, resistive and capacitive touch panels still dominate the market, especially resistive touch panels account for more than half of the market share, while capacitive touch panels only began to receive attention when the iPhone product came out, and gradually applied to other products. The main reason why the capacitive touch panel has received great attention due to the launch of the iPhone product is that the capacitive touch panel can be multi-touched, and at the same time, it can recognize the position through more than two objects, so it can complete special functions such as zooming pictures. However, such a function cannot be realized for various resistive touch panels at present, so how to realize the multi-touch function under the framework of the resistive touch has become the research and development direction of various manufacturers.

Contents of the invention

The present invention relates to a multi-touch resistive touch panel, a method for detecting multi-touch points thereof and an electronic device using the method. The electrode pattern design of the transparent electrode of a substrate is matched with the conductive electrode of another substrate. The electrodes serve as signal detection terminals, so that the resistive touch panel has the function of detecting multiple touch points.

The present invention provides a multi-touch resistive touch panel, which includes a first substrate, a second substrate and a spacer element, wherein the spacer element is disposed between the first substrate and the second substrate. The first substrate has a first transparent electrode, two first conductive electrodes and two second conductive electrodes, wherein the first conductive electrodes are arranged parallel to each other on the two boundaries of the first transparent electrodes, and the second conductive electrodes are arranged parallel to each other It is arranged on the other two borders of the first transparent electrode and perpendicular to the first conductive electrode. The second substrate has a plurality of second transparent electrodes, wherein the second transparent electrodes cover a surface of the second substrate facing the first transparent electrodes along the first axis direction, and the second transparent electrodes extend along the second axis direction , and the direction of the second axis is perpendicular to the direction of the first axis.

The present invention also proposes a method for detecting multi-touch points of a resistive touch panel, including: judging the touch mode of the touch panel, and if it is a multi-touch mode, enter the next step; drive a first substrate At least one of the two first conductive electrodes and the two second conductive electrodes is used as the first signal detection terminal; and the plurality of second transparent electrodes of the second substrate facing the first substrate are sequentially detected, and according to The contact positions of all the second transparent electrodes that generate signals detected by the first signal detection end are used to obtain the positions of multiple touch points in the first axis direction of the second transparent electrode configuration, and measure all the second transparent electrodes that generate signals. The resistance value of the contact end of the transparent electrode is used to obtain the positions of the plurality of touch points in the direction of the second axis where the second transparent electrodes respectively extend.

In order to make the above content of the present invention more obvious and understandable, the preferred embodiments are specifically cited below, together with the accompanying drawings, and are described in detail as follows:

Description of drawings

FIG. 1 is a schematic diagram of a multi-touch resistive touch panel according to a preferred embodiment of the present invention.

FIG. 2 is a schematic plan view of the first substrate and the second substrate of FIG. 1 .

FIG. 3 is a circuit block diagram of the control module in FIG. 2 .

FIG. 4 is a flowchart of a multi-touch detection method for a resistive touch panel according to a preferred embodiment of the present invention.

FIG. 5 shows a detailed flowchart of detecting touch points in a multi-touch mode.

FIG. 6 is a schematic diagram showing resistance design of different touch points on the substrate.

FIG. 7 shows a detailed flow chart of detecting a touch point in a single-touch mode.

FIG. 8A is a schematic diagram of a second substrate having a diamond-shaped transparent electrode configuration.

FIG. 8B is a schematic diagram of a single second transparent electrode in FIG. 8A .

FIG. 9 is a schematic diagram of a second substrate having a rectangular transparent electrode configuration.

FIG. 10 is a schematic diagram of an electronic device applying a preferred embodiment of the present invention.

[Description of main component symbols]

10: Multi-touch resistive touch panel

101: First Substrate

103, 203, 303: second substrate

105: spacer element

107: The first transparent substrate

109: first transparent electrode

111, 113: first conductive electrodes

115, 117: second conductive electrodes

119: Second transparent substrate

121, 221, 321: the second transparent electrode

123: Control module

125, 127: signal line

129: Processing unit

131: judgment unit

133: switch unit

135: Voltage output unit

137: storage unit

139: temporary storage unit

400: Electronics

410: display panel

2211～2219: transparent blocks

P1～P5: touch points

Detailed ways

Please refer to FIGS. 1 and 2 . FIG. 1 is a schematic diagram of a multi-touch resistive touch panel according to a preferred embodiment of the present invention, and FIG. 2 is a schematic plan view of the first substrate and the second substrate in FIG. 1 . As shown in FIG. 1 , the multi-touch resistive touch panel 10 includes a first substrate 101 , a second substrate 103 and a spacer 105 , wherein the spacer 105 is disposed between the first substrate 101 and the second substrate 103 . As shown in Figure 2, the first substrate 101 has a first transparent substrate 107, a first transparent electrode 109, two first conductive electrodes 111, 113 and two second conductive electrodes 115, 117, wherein the first transparent electrode 109 is laid on the first transparent substrate 107, and the first conductive electrodes 111, 113 are arranged parallel to each other on the two boundaries of the first transparent electrode 109, and the second conductive electrodes 115, 117 are arranged parallel to each other on the first transparent electrode The other two boundaries of 109 are perpendicular to the first conductive electrodes 111 and 113 . The second substrate 103 has a second transparent substrate 119 and a plurality of second transparent electrodes 121, wherein the second transparent electrodes 121 are elongated structures arranged along the first axis to cover the second transparent electrodes 121. The substrate 119 faces the surface of the first transparent electrode 109, and the second transparent electrode 121 itself extends along the second axis direction, and the second axis direction is perpendicular to the first axis direction, and is preferably connected to the first conductive electrode 111, 113 extend in the same direction. In this embodiment, the first axis direction takes the X-axis direction as an example, and the second axis direction takes the Y-axis direction as an example for illustration.

The materials of the first transparent substrate 107 and the second transparent substrate 119 include at least one of glass, acrylic and engineering plastics. The material of the first transparent electrode 109 and the second transparent electrode 121 can be a transparent conductive material, such as metal oxides such as ITO, IZO, ZnO, and SnO. The material of the spacing element 105 includes at least one of glass, plastic, polymer material and oxide, and can be disposed between the first substrate 101 and the second substrate 103 by printing, exposure and development, spraying, and the like. The height of the spacing elements 105 is preferably about 20 microns to 200 microns.

As shown in FIG. 2 , the resistive touch panel 10 further includes a control module 123 , which is respectively connected to the first conductive electrodes 111 , 113 and the second conductive electrodes 115 of the first substrate 101 through a plurality of signal lines 125 . , 117 , the control module 123 is respectively connected to the second transparent electrodes 121 of the second substrate 103 through a plurality of signal lines 127 . Through the structural design of the first substrate 101 and the second substrate 103, and the operation of the matching control module 123, the multi-touch resistive touch panel 10 of this embodiment can operate in the multi-touch mode and the single-touch mode. Toggle to detect multiple touch points or a single touch point.

Please refer to FIG. 3 , which shows a circuit block diagram of the control module in FIG. 2 . As shown in FIG. 3 , the control module 123 includes a processing unit 129 , a judging unit 131 , a switching unit 133 , a voltage output unit 135 , a storage unit 137 and a temporary storage unit 139 . The judging unit 131 is used for judging whether the touch panel 10 is in the single-touch mode or the multi-touch mode.

In the multi-touch mode, the switch unit 133 of the control module 123 is used to drive at least one of the first conductive electrodes 111 , 113 and the second conductive electrodes 115 , 117 as a first signal detection terminal. The voltage output unit 135 is used to provide a voltage to the second transparent electrode 121 . The storage unit 137 is used for storing data of a plurality of preset resistance values in the multi-touch mode. The processing unit 129 determines the positions of multiple touch points in the first axis direction (X-axis direction) according to the second transparent electrode 121 that generates the signal, and the processing unit 129 detects the resistance value of the contact end of the second transparent electrode 121 , to determine the positions of these touch points in the second axis direction (Y axis direction). The temporary storage unit 139 is used for sequentially storing position data of a plurality of touch points.

In the single-touch mode, the switch unit 133 is used to short-circuit the second transparent electrodes 121 in series to serve as a second signal detection terminal. The voltage output unit 135 is used to alternately provide voltages to the first conductive electrodes 111 , 113 and the second conductive electrodes 115 , 117 to form electric fields in two directions. The processing unit 129 is used to obtain the position of the single touch point in the first axis direction (X axis direction) according to the voltage detected by the second signal detection terminal when the first conductive electrodes 111 and 113 are energized. Then, when the second conductive electrodes 115 and 117 are energized, the processing unit 129 obtains the position of the single touch point and the second axis direction (Y axis direction) according to the voltage detected by the second signal detection terminal. In this way, The exact position of the single touch point can be obtained.

This embodiment also proposes a multi-touch detection method of the resistive touch panel, the flowchart of the method is shown in FIG. 4 , and the multi-touch detection method includes steps S10, S20 and S30. In step S10 , first determine the touch mode of the touch panel 10 , and if it is a multi-touch mode, enter the next step, namely step S20 . As shown in FIG. 3 , the judging unit 131 of the control module 123 judges the desired touch mode of the touch panel 10 according to the received external signal, for example. Taking the electronic device 400 (see FIG. 10 ) with the function of viewing photos or playing images as an example, the external signal may be a signal generated when the photo or image is turned on. Once the determining unit 131 receives the signal, it can transmit the signal to the processing unit 129 to determine that the touch panel 10 is in the multi-touch mode.

In step S20 , at least one of the two first conductive electrodes 111 , 113 and the two second conductive electrodes 115 , 117 of the first substrate 101 is driven as a first signal detection terminal. As shown in FIG. 3 , the switching unit 133 selects at least one or all of the first conductive electrodes 111, 113 and the second conductive electrodes 115, 117 as the first electrode for measuring the resistance value according to the signal transmitted to the processing unit 129. Signal detection terminal, wherein, as shown in FIG. 2, the electrode positions of the first conductive electrodes 111, 113 and the second conductive electrodes 115, 117 are respectively defined as X0, X1, Y0 and Y1, and the following in this embodiment is The second conductive electrode 115 (Y0) is taken as the first signal detection terminal as an example for illustration.

Then, as shown in step S30, a plurality of second transparent electrodes 121 of the second substrate 103 facing the first substrate 101 are sequentially detected, and all second transparent electrodes 121 that generate signals detected by the first signal detection terminal are detected. to obtain the positions of multiple touch points in the first axis direction (X-axis direction) where the second transparent electrodes 121 are arranged, and measure the contact end resistance values of all the second transparent electrodes 121 that generate signals, so as to The positions of the plurality of touch points in the second axis direction (Y axis direction) where the second transparent electrodes 121 respectively extend are acquired. Please refer to FIG. 5 , which shows a detailed flow chart of detecting touch points in the multi-touch mode.

Take the detection of the two touch points P1 and P2 in FIG. 2 as an example. When detecting the X-axis direction, it is only necessary to determine which signal lines 127 receive signals, and then the position of the X-axis can be determined. When performing Y-axis detection, it is necessary to convert the resistance value measured by the signal line of the second transparent electrode 121 corresponding to the receiving action to obtain the Y-axis position. When detecting the position of the X-axis, for example, start scanning from the second transparent electrode 121 (1) to the direction of the second transparent electrode 121 (20), wherein, the X-axis position of the second transparent electrode 121 (1) is defined as X =1, and the X-axis position of the second transparent electrode 121 (20), for example, is defined as X=n. As shown in step S31 of FIG. 5 , signal detection starts at X=1. Then go to step S32 to judge whether there is a signal output. Since the touch point P1 is located on the second transparent electrodes 121(3) and 121(4), there is no signal output at X=1, so jump to step S35 to determine whether the value of X is n. Since the X value at the detection location is not equal to n, skip to step S36, add 1 to the X value and return to step S32 to continue to detect the next second transparent electrode 121(2). When the second transparent electrode 121 ( 3 ) is detected, since a signal is generated, skip to step S33 , measure the resistance value from the first signal detection end of the first substrate 101 , and convert the resistance value into the Y-axis coordinate.

As shown in FIG. 2 , according to the predefined position of the first signal detection end, the resistance value from the touch point P1 to the first signal detection end can be RX0 , RX1 , RY0 or RY1 . Since this embodiment uses the second conductive electrode 115 (Y0) as the first signal detection terminal, the resistance value from the touch point P1 to the first signal detection terminal is RY0, and the touch point P1 is on the second transparent electrode 121 (3 ) The resistance value of the contact terminal is R3. For example, the processing unit 129 converts the Y-axis coordinate of the touch point P1 by using the measured resistance value R3 of the contact end and according to the data of a plurality of preset resistance values stored in the storage unit 137 .

Then, as shown in step S34 of FIG. 5 , the X value of the signal line and the converted Y value are stored in the temporary storage area formed by the m*n matrix, that is, each time the position of a touch point is calculated, the The location information is stored in the temporary storage area, which is located in the temporary storage unit 139 . Then, continue to scan the next signal line and repeat the above steps to obtain the resistance value R4 of the contact end of the touch point P1 on the second transparent electrode 121 ( 4 ). In this way, the exact X-axis and Y-axis coordinates of the touch point P1 can be deduced through the above two obtained coordinate positions. Then continue scanning in the same way, that is, the contact position between the signal line 127 and the second transparent electrodes 121 (16), 121 (17) and the measured resistance value of the second transparent electrodes 121 (16), 121 (17) R16 and R17 further obtain the exact position of the touch point P2.

Taking the touch point P1 again as an example, since the X-axis part can be judged by the position of the signal line that receives the signal, no further calculation is required. However, since the Y-axis part is related to the resistance value, taking the resistance values RY0 and R3 as an example, the total resistance value RT measured by the first signal detection terminal Y0 is essentially the sum of the resistance values RY0 and R3. The Y-axis error can make the resistance value of R3 greater than RY0, and preferably, the resistance value of R3 is more than ten times or more than one hundred times greater than RY0, so as to obtain a more accurate detection effect. In addition, a resistance compensation parameter can also be added when the resistance value is converted into coordinates, so as to reduce the Y-axis error caused by RY0.

Regarding the resistance value judgment and compensation method, the following figures illustrate it as an example. Please refer to FIG. 6 , which shows a schematic diagram of resistance design of different touch points on the substrate. Also select Y0 as the signal detection terminal for illustration. As mentioned above, when the difference between the resistance value RY0 of the terminal point of Y0 and the resistance value of the contact terminal is not large, the resistance value RY0 of the signal detection terminal Y0 may cause detection errors. Therefore, the resistance value RY0 must be taken into account , that is, a resistance compensation parameter can be added to calculate the total resistance. For example, as shown in FIG. 6, the resistance value of the contact terminal is ten times the resistance value RY0 of the signal detection terminal Y0, for example: the RY0 of the touch point P3 is 100Ω, and the second transparent electrode 121(1) on The corresponding contact resistance R1 is 1000Ω; the RY0 of the touch point P4 is 0, and the corresponding contact resistance R10 on the second transparent electrode 121 (10) is also 0; the RY0 of the touch point P5 is 50Ω , and the corresponding contact resistance R20 on the second transparent electrode 121 (20) is 500Ω. The aforementioned resistance compensation parameter can be defined as: the resistance value of the contact end divided by the resistance value of the signal detection end. The calculation formula of the total resistance value RTi at different positions is as follows:

RTi＝Ri+Ri/compensation parameter

Wherein, Ri is the resistance value of the contact end at different positions, and according to the above example, the compensation parameter is 10.

When the contact point is at the farthest position from the contact end to the signal detection end, such as the position of the touch point P3, the resistance value of the contact point is equal to the terminal resistance of the contact end, so the total detected resistance value RT1=1000+(1000/ 10) = 1100Ω.

When the contact point is at the closest position to the signal detection end, such as the position of the touch point P4, the resistance value of the contact point is almost equal to 0, and the detected total resistance value RT10=0+(0/10)=0.

When the contact point is in the middle of the contact end, such as the position of the touch point P5, the resistance value of the contact point is equal to 1/2 of the terminal resistance of the contact end, and the detected total resistance value RT1=500+(500/10 ) = 550Ω.

From the above examples, it can be seen that this design of resistance value can obtain equal proportional resistance value change, therefore, in the multi-touch mode, the Y-axis coordinates of multiple touch points can be calculated sequentially.

If it is determined in step S10 (see FIG. 4 ) that it is the single-touch mode, the touch panel 10 will detect the position of the single-touch point in a general analog way. Please refer to FIG. 7 , which shows a detailed flow chart of detecting a touch point in a single-touch mode. As shown in step S41 , when detecting a single touch point, all the second transparent electrodes 121 of the second substrate 103 (see FIG. 2 ) are connected in series and short-circuited as the second signal detection terminal.

Then, as shown in step S42, power is supplied to the two first conductive electrodes 111, 113 of the first substrate 101, so that a potential difference is generated between them, and the voltage output is detected by the second signal detection terminal of the second substrate 103 , and converted to X-axis coordinates. Since when the first conductive electrodes 111, 113 have a potential difference, an electric field distributed along the X direction is formed between the first conductive electrodes 111, 113, therefore, whenever a touch action occurs, the first substrate 101 and the second substrate When 103 touches, the second substrate 103 as the second signal detection terminal will take away a small amount of current from the first substrate 101, and the processing unit 129 of the back-end control module 123 (see FIG. And calculate the X-axis coordinates.

Next, as shown in step S43, power is supplied to the two second conductive electrodes 115, 117 of the first substrate 101, so that a potential difference is generated between them, and the voltage output is detected by the second signal detection terminal of the second substrate 103. , and converted to Y-axis coordinates. When the second conductive electrodes 115 and 117 have a potential difference, an electric field distributed along the Y direction is formed between the second conductive electrodes 115 and 117 . Similarly, when the touch action occurs, the processing unit 129 also calculates the Y-axis coordinate according to the proportion of the current taken away.

As shown in step S44 , when the X and Y axis coordinates of the single touch point have been calculated, the coordinate information can be output to complete the detection of the single touch point.

In this embodiment, the second transparent electrode 121 of the second substrate 103 is described as an elongated structure as an example, but the present invention is not limited thereto. The configuration of the second transparent electrodes can also be other different electrode patterns, which will be described in the following figures. Please refer to FIGS. 8A and 8B . FIG. 8A shows a schematic diagram of a diamond-shaped transparent electrode configuration on the second substrate, and FIG. 8B shows a schematic diagram of a single second transparent electrode in FIG. 8A . Each second transparent electrode 221 of the second substrate 203 is formed by connecting several diamond-shaped transparent blocks (such as transparent blocks 2211 to 2219 ) in series, and the transparent blocks of two adjacent second transparent electrodes 221 Departments are separated from each other and do not overlap. The resistance detection method of this electrode pattern is mainly based on the diamond-shaped transparent block. According to the resistance calculation formula, the resistance value is inversely proportional to the cross-sectional area through which the current passes. Since the junction of two diamond-shaped transparent blocks has the smallest cross-sectional area, in the structure of the single second transparent electrode 221 , the resistance value mainly depends on the connected portion of the transparent blocks.

Taking FIG. 8A as an example, the positions occupied by the same diamond-shaped transparent area can be regarded as positions with the same resistance value, and different diamond-shaped transparent areas represent different touch areas. Taking Figure 8B as an example, assuming that the bridging impedance at the junction of every two diamond-shaped transparent blocks is 100Ω, the resistance values at other positions can be estimated accordingly, for example: when the measured resistance value is between 0 and 100Ω , the position of the touch point is the position of the transparent block 2211; if the resistance value is between 100-200Ω, the position of the touch point is the position of the transparent block 2212, and other touch positions can be deduced by analogy , and then calculate the Y-axis coordinates.

Please refer to FIG. 9 , which shows a schematic view of the second substrate having a rectangular transparent electrode configuration. Each second transparent electrode 321 of the second substrate 303 is formed by connecting several rectangular transparent blocks in series. Similarly, in the structure of a single second transparent electrode 321, its resistance value also mainly depends on the junction of the two transparent areas, so it can also be calculated in the same way as the above-mentioned resistance value of the diamond-shaped transparent area, and according to the detected Resistance value range to obtain Y-axis coordinates.

In the above-mentioned embodiment, although the transparent area of the second transparent electrode is described as a rhombus and a rectangle as examples, the present invention is not limited thereto, and the transparent area can be in any shape. In essence, the transparent blocks can be rectangles, squares, triangles, polygons, circles, ellipses, stars, etc. with different lengths and widths. In addition, the number of transparent blocks connected in series is not limited, as long as the transparent electrodes of a substrate are divided into a plurality of electrodes that can independently detect signals, and a plurality of transparent blocks connected in series with arbitrary shapes, all belong to this invention. the scope of the invention.

The multi-touch resistive touch panel 10 of the present invention can be applied to various electronic devices, such as the electronic device 400 shown in FIG. The integrated touch panel 10 is covered on the display panel 410 , and both are connected to other control circuits (not shown) of the electronic device 400 . Since the multi-touch resistive touch panel 10 can switch and detect between single-touch and multi-touch modes, the images displayed by the display panel 410 in different function modes are different from those displayed by traditional resistive touch panels. For the problem that the touch panel cannot perform multi-point detection, the multi-touch resistive touch panel 10 of this embodiment improves the function of the electronic device 400 further.

In the multi-touch resistive touch panel disclosed in the above-mentioned embodiments of the present invention and the method for detecting the multi-touch points thereof, a first transparent electrode is designed on the first substrate of the touch panel, and the first transparent electrode is placed on the first substrate. Four conductive electrodes are arranged on four boundaries of the transparent electrode. In addition, the second substrate of the touch panel is designed with a plurality of second transparent electrodes parallel to one direction that are independent and non-intersecting. In the single-touch mode of the touch panel, electric fields in two directions are formed alternately through four conductive electrodes, so as to detect the exact position of a single touch point in an analog way. In the multi-touch mode, the positions of multiple touch points are determined according to the position of the signal line of the second transparent electrode that generates the signal and the resistance value of the contact end, thus solving the problem that traditional resistive touch panels cannot Point touch problem. Also because the resistive touch panel of the above-mentioned embodiment of the present invention has the function of multi-point detection, the electronic device can further design other function modes according to the positional relationship of the identified multi-touch points, such as editing and zooming. image functions.

In summary, although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Those skilled in the art of the present invention may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims (16)

1. multi-touch resistance-type touch panel comprises:

One first substrate, have one first transparency electrode, two first conductive electrodes and two second conductive electrodes, wherein, these two first conductive electrodes are in parallel arranged in two borders of this first transparency electrode, these two second conductive electrodes are in parallel arranged in addition two borders of this first transparency electrode, and vertical these two first conductive electrodes;

One second substrate, have a plurality of second transparency electrodes, wherein, these second transparency electrodes are arranged along one first direction of principal axis and are covered with the surface of this second real estate to this first transparency electrode, and these second transparency electrodes itself are extended along one second direction of principal axis, and vertical this first direction of principal axis of this second direction of principal axis; And

One spacer element is arranged between this first substrate and this second substrate.

2. contact panel as claimed in claim 1 also comprises a control module, is connected to this first substrate and this second substrate, by this,

Under a multi-point touch pattern, this control module in order to order about these two first conductive electrodes and these two second conductive electrodes at least one of them as one first input end, the connecting point position of this control module by these second transparency electrodes and this control module be with at least two positions of touch point on this first direction of principal axis of judgement, and this control module and the contact jaw resistance value by detecting these second transparency electrodes are to judge the position of these at least two touch points on this second direction of principal axis; And

Under a single-point touch pattern, this control module with so that these second transparency electrodes serial connection short circuits with as a secondary signal test side, these two first conductive electrodes of this control module and driven and this two second conductive electrodes are to form the electric field of two directions, by this to obtain the position of single touch point.

3. contact panel as claimed in claim 2, wherein this control module comprises:

One judging unit is in order to judge that this contact panel is in this single-point touch pattern or this multi-point touch pattern;

One switches the unit, under this multi-point touch pattern in order to order about these two first conductive electrodes and these two second conductive electrodes at least one of them as this first input end;

One voltage output unit, under this multi-point touch pattern in order to provide voltage to these second transparency electrodes;

One storage unit is in order to the data of a plurality of preset resistance values of storing this multi-point touch pattern;

One processing unit, go to determine the position of this at least two touch point on this first direction of principal axis at the connecting point position according to these second transparency electrodes that produce signal under this multi-point touch pattern, this processing unit also goes to determine the position of these at least two touch points on this second direction of principal axis in order to the contact jaw resistance value of judging these second transparency electrodes and the relation of these preset resistance values; And

One temporary storage location is in order to the position data of storing this at least two touch point in regular turn under this multi-point touch pattern.

4. contact panel as claimed in claim 3, wherein under this single-point touch pattern:

This switch unit also with so that the short circuits of these second transparency electrodes serial connection with as this secondary signal test side;

This voltage output unit is also in order to alternately to provide voltage to these two first conductive electrodes and this two second conductive electrodes; And

This processing unit is also in order to when these two first conductive electrodes are switched on, according to this detected voltage in secondary signal test side reach the position of this single touch point on this first direction of principal axis, and when this two second conductive electrodes energising, this processing unit also in order to reach according to this detected voltage in secondary signal test side the position of this single touch point on this second direction of principal axis.

5. contact panel as claimed in claim 2, wherein the contact jaw resistance value of these second transparency electrodes is greater than the resistance value of this first input end.

6. contact panel as claimed in claim 5, wherein the contact jaw resistance value of these second transparency electrodes is more than ten times of resistance value of this first input end.

7. contact panel as claimed in claim 1, wherein these second transparency electrodes respectively have the transparent block of a plurality of polyphones, and the transparent block of adjacent two second transparency electrodes is apart does not overlap.

8. contact panel as claimed in claim 7, wherein the shape of these transparent blocks comprise triangle, square, strip, rhombus, polygon, circle, ellipse and star at least one of them.

9. contact panel as claimed in claim 1, wherein this first substrate also has one first transparent ground, and this second substrate also has one second transparent ground.

10. contact panel as claimed in claim 9, wherein the material of this first transparent ground and this second transparent ground comprise glass, acryl and engineering plastics at least one of them.

11. contact panel as claimed in claim 1, wherein the material of this first transparency electrode is a transparent conductive material.

12. contact panel as claimed in claim 1, wherein the material of these second transparency electrodes is a transparent conductive material.

13. contact panel as claimed in claim 1, wherein the material of this spacer element comprise glass, plastic cement, macromolecular material and oxide at least one of them.

14. contact panel as claimed in claim 1, wherein the height of this spacer element is about 20 microns to 200 microns.

15. the detection method of an electric resistance touch-control panel comprises:

A. judge the control mode touch mode of a contact panel,, then enter step b if be a multi-point touch pattern;

B. order about two first conductive electrodes of one first substrate and two second conductive electrodes at least one of them as one first input end;

C. detect a plurality of second transparency electrodes of one second substrate of this first substrate subtend in regular turn, and according to the connecting point position of these second transparency electrodes of the detected generation signal of this first input end reach at least two positions of touch point on one first direction of principal axis of these second transparency electrodes configurations, and the contact jaw resistance value of these second transparency electrodes of measurement generation signal, to obtain the position of these at least two touch points on one second direction of principal axis that these second transparency electrodes itself are distinctly extended;

D. in this step a,, then make these second transparency electrodes serial connection short circuits of serial connection short circuit with as a secondary signal test side if be a single-point touch pattern;

E. supply power to this two first conductive electrodes, according to this detected voltage in secondary signal test side reach the position of single touch point on this first direction of principal axis; And

F. supply power to this two second conductive electrodes, according to this detected voltage in secondary signal test side reach the position of this single touch point on this second direction of principal axis.

16. detection method as claimed in claim 15 wherein in this step c, whenever the position data that obtains a touch point, then is stored to it in temporary storage location, carries out the detection of next touch point again.

Images