TW201531913A - Adjustment method and adjustment apparatus for sensing capacitance in touch panel - Google Patents

Abstract

The application discloses an adjustment method and adjustment apparatus for sensing capacitance in touch panel for presetting a capacitance of a sensing channel in a touch sensor of the touch panel for sensing touch signals so as to generate an adjustment basis for operation of a controller for the touch panel. The adjusted capacitance is applied to at least one of two adjacent sensing channels under predetermined compensating rules following capacitance variation of the sensing channel through an additional adjustment capacitor on the touch sensor so as to compensate deficiency of inconsistent sensing degree in the sensing channel of the touch sensor. Accordingly, the invention can automatically implement adjustment of sensing degree of each touch sensor in mass production process by sensing and setting the controller for calibrating touch precision of the touch panel.

Description

Method and device for adjusting sensing capacitance value in touch panel

The invention relates to a method and an adjustment device for adjusting a touch panel, and more particularly to a method and an adjustment device for adjusting a sensing capacitance value in a touch panel.

With the evolution of touch technology, touch-based human-machine interfaces, such as touch panels, have been widely used in a wide variety of electronic products to replace traditional input devices (such as: Keyboard and mouse, etc., convenient for users to manipulate and browse data.

The touch panel can be divided into resistance type, capacitance type, sound wave type, light guide type, and load change type according to different operation modes. In the current most widely used capacitive touch panel, the touch panel senses the capacitive effect through the plurality of sensing electrodes disposed thereon, and when the touch is input (such as when the user's finger touches the touch panel) ), due to the change or interruption of the predetermined electric field, the capacitance value at the touch will change, and the touch panel device can detect a control input.

Since the position of the touch is obtained by comparing the capacitance values in the sensing channel, that is, the capacitance value in the sensing channel is different from that of the other sensing channels. However, due to the lack of uniformity (such as defects in semiconductor manufacturing processes), the touch sensor itself often causes sensing channels having different sensing levels (ie, different capacitance values) in the same touch sensor, such that The defect will easily cause the interference of the sensing or even the sensing error, thereby causing, for example, a touch error such as a touch effect that has occurred when the user's finger is not correctly touched.

An object of the present invention is to make the sensing degree of each sensing channel of the touch sensor uniform, so as to compensate for the situation in which the touch sensor is out of alignment due to poor uniformity of the touch sensor.

Another object of the present invention is to enable mass production of touch sensor adjustments.

Still another object of the present invention is to individually adjust each touch sensor in the touch panel to optimize touch accuracy.

To achieve the above and other objects, the present invention provides a method for adjusting a sensing capacitance value in a touch panel, which is used to pre-set a sensing of a touch signal in a touch sensor of the touch panel. The capacitance value of the channel is used to generate an adjustment basis for the controller of the touch panel during operation. The setting adjustment method includes: a step of obtaining a capacitance variation amount, and a plurality of first direction sensing channels on the touch panel And a plurality of second direction sensing channels, selecting two adjacent sensing channels on the same direction sensing channel to perform sensing of capacitance values between the two sensing channels without external touch behavior, to obtain one Capacitance value variation; the capacitance variation acquisition step is performed on a plurality of first direction sensing channels and a plurality of second direction sensing channels on the touch panel, and selecting adjacent senses on the same direction sensing channel Measuring channel, sensing the capacitance value between the two sensing channels without external touch behavior to obtain a capacitance value variation; adjusting the configuration table establishing step, storing the same direction sensing channel in the touch panel Adjacent two Each measurement adjust the desired channel configuration arranged to generate an adjustment table for the controller using the touch panel.

In an embodiment of the present invention, the method further includes an external adjustment capacitor setting step, wherein the adjustment capacitor configured by each touch sensor is set according to a preset basic capacitance adjustment value, wherein the preset basic capacitance adjustment The value is a preset minimum adjustable value, and the setting step of the external adjustment capacitor includes: when the preset basic capacitance adjustment value is greater than the adjustment channel capacitance value, the capacitance value is (3 ^R-1 ) NM Where R is a positive integer from 1 to x, N is the preset base capacitance adjustment value, and M is the adjustment channel capacitance value of the Rth sensing channel. The regular configuration of each touch sensor is in the adjustment channel. The xth adjustment channel corresponds to the connected adjustment capacitor.

In an embodiment of the present invention, the setting step of the external adjustment capacitor further includes: when the preset basic capacitance adjustment value is smaller than the adjustment channel capacitance value, and M≠4N≠2N, according to the “capacitance” Values = 0, N, 3N, 2M, 9N, 27N, 81N, 8M, 243N, where N is the preset base capacitance adjustment value", selectively configuring at least two adjustments of each touch sensor The adjustment capacitor connected to the channel.

In an embodiment of the present invention, the step of setting the external adjustment capacitor further includes: the preset base capacitance adjustment value is less than the adjustment channel capacitance value, and the adjustment channel capacitance value is four times the preset basic capacitance adjustment value. In the large case, at least the capacitance values =0, N, 3N, 18N, 62N, where N is the preset basic capacitance adjustment value, the at least one touch sensor is selectively configured. Two adjustment capacitors connected to the adjustment channel.

In an embodiment of the present invention, the step of setting the external adjustment capacitor further includes: the preset base capacitance adjustment value is less than the adjustment channel capacitance value, and the adjustment channel capacitance value is twice the preset basic capacitance adjustment value. In the large case, at least the capacitance values of 2N, 3N, 5N, 20N, and 64N, where N is the preset basic capacitance adjustment value, are selectively configured to selectively configure at least each touch sensor. Two adjustment capacitors connected to the adjustment channel.

To achieve the above and other objects, the present invention further provides an adjustment device for sensing a capacitance value in a touch panel, which is used for adjusting a plurality of first direction sensing channels and a plurality of pixels on the touch panel according to an adjustment configuration table. The capacitance value of the second direction sensing channel includes: a plurality of touch sensors including a plurality of sensing channels and a plurality of adjusting channels, wherein the sensing channels are corresponding to the first direction sensing channels connected to the touch panel and a second direction sensing channel; a plurality of adjusting capacitors respectively connected to the adjusting channels of the touch sensors; and a controller connecting the touch sensors for sensing the capacitance of the channels When the value changes, the capacitance effect of the adjusting capacitors is applied to at least one of the adjacent two sensing channels of the capacitance value change according to the adjustment configuration table to adjust the sensing degree of the sensing channel.

In an embodiment of the present invention, when the touch panel is 24 吋 or more, each of the touch sensors is configured with at least 4 adjustment channels.

Therefore, the present invention pre-sets the adjustment capacitor of the adjustment channel by the controller (the maximum and minimum values of the adjustable capacitance can be preset according to the size of the touch panel), and can be automatically generated in the mass production process. The setting and adjustment of the sensing level of each touch sensor is completed to correct the touch precision of the touch panel product, thereby obtaining the best performance of the touch panel.

In order to fully understand the objects, features and advantages of the present invention, the present invention will be described in detail by the following specific embodiments and the accompanying drawings.

In the present invention, the adjustment capacitor is connected through a channel that is used on each touch sensor. For example, when a touch sensor has 48 sensing channels, at least two channels can be reserved as adjustment channels. To connect the corresponding adjustment capacitors, the remaining 46 channels are connected to the sensing electrodes on the touch panel to become the sensing channels. In addition, since the requirements of touch precision of different sizes are different, the capacitance value to be adjusted has a latitude, and the required adjustment range also varies with the quality of different batches of touch sensors. Therefore, the present invention can preset the capacitance value adjustment range required in the mass production before the mass production of the touch panel, that is, set the minimum adjustable value (for example, the capacitor is selected to meet the minimum adjustable value). And set the number of adjustment channels (the number of adjustment channels can determine the maximum capacitance value adjustment range), which will be described in detail.

First, please refer to FIG. 1 , which is a configuration diagram of a touch panel device according to an embodiment of the present invention. The touch panel 110 includes a plurality of sensing units 112 in a first direction (for example, a column direction) and a plurality of sensing units 114 in a second direction (for example, a row direction), and each of the same directions is connected in series. The sensing electrode group is connected to the corresponding sensing channel of the corresponding touch sensor 130 (for example, the input pin of the touch sensor), and the touch sensor 130 can be sensed by the configuration of the touch sensor 130. The change in the capacitance value provides a sensing result to the controller 170 to generate touch data for detecting the touch input position.

Each of the touch sensors 130 includes a plurality of sensing channels and a plurality of adjusting channels. The sensing channels are corresponding to the first direction sensing channel and the second direction sensing channel of the touch panel 110. For example, A touch sensor 130 is connected to a part of all the first direction sensing channels of the touch panel 110 , whereby the connection of all the sensing channels is completed by the plurality of touch sensors 130 . In addition, one case is when two adjacent sensing channels are respectively connected to two different touch sensors 130, however, based on the operating rules of the controller of the present invention, even if connected to two different touches The balance of the degree of variation of the capacitance value can also be completed in the control sensor 130, which will be described in more detail later in conjunction with FIG.

It is to be noted that the present invention is configured with at least two adjustment channels for each touch sensor 130 for connecting to the adjustment capacitor bank 150, the adjustment capacitor group containing at least one adjustment capacitor. The adjustment channels of the associated touch sensors 130 are connected correspondingly. In an embodiment of the invention, at least one of the adjustment channels must be connected to an adjustment capacitor. In addition, in another aspect, one of the adjustment channels is not connected to the adjustment capacitor, and only the parasitic capacitance effect of the adjustment channel is used as the capacitance adjustment value.

The controller 170 is connected to the touch sensors 130. The controller 170 is configured to apply a capacitance effect of the adjustment capacitor to at least one of the adjacent two sensing channels of the capacitance value change according to an adjustment configuration table when the capacitance value of the sensing channel changes, to adjust the sensing channel. The degree of sensing, the adjustment configuration table will be described in more detail later with Figure 2.

2 is a flowchart of a method for adjusting a sensing capacitance value in a touch panel according to an embodiment of the present invention, which is used for pre-setting a touch sensor of the touch panel for sensing touch The capacitance value of the sensing channel of the control signal is used to generate an adjustment basis for the controller of the touch panel during operation.

First, in step s100: the capacitance variation obtaining step is performed on a plurality of first direction sensing channels and a plurality of second direction sensing channels on the touch panel, and selecting adjacent two senses on the same direction sensing channel The channel is sensed to sense the capacitance between the two sensing channels without external touch behavior to obtain a capacitance value variation. This step is the first procedure in which the controller 170 operates to operate the touch panel device during the mass production phase of the touch panel device. The setting adjustment step can be performed after performing comprehensive sensing at one time or the setting adjustment step is performed after each two adjacent sensing channels are sensed, and neither of the two aspects leaves the scope of the present invention.

Next, step s200: an estimation step of balancing the capacitance value variation. In this step, the touch sensor to which the channel belongs is used, and the adjustment capacitors respectively connected to the respective adjustment channels of the touch sensor are used to estimate the required capacitance adjustment value to generate a touch sensor. The adjustment configuration is configured to apply an adjustment capacitor connected to each of the adjustment channels of the touch sensor to at least one of the two sensing channels to balance the variation degree of the capacitance value. This step is mainly based on the function of the controller 170. The controller estimates the application of the adjustment capacitor according to the magnitude of the capacitance transmitted from the two sensing channels according to the capacitance and the number of the adjustment capacitors connected to the touch sensor. In combination, according to the input of the received signal and the combination of the known capacitance value, the controller 170 can cause the controller 170 to estimate the application configuration of the adjustment capacitor according to the compilation of the operation rule, and the control system of the controller 170 belongs to the technical field. Those who have ordinary knowledge can easily complete the understanding of the operating principle of the present invention, so the detailed program coding code of the controller 170 will not be described here.

Finally, step s300: adjust the configuration table establishment step. Each of the adjustment configurations required to store adjacent sensing channels on the same direction sensing channel in the touch panel is configured to generate an adjustment configuration table for the controller of the touch panel. When the touch panel device is used, the adjustment configuration table can be adjusted according to each touch input, thereby correcting the touch precision of the touch panel.

The above steps s100~s300 enable the controller to execute the adjustment configuration table when the touch panel device is mass-produced to complete the "pre-set" step. The step of setting an external adjustment capacitor may be further included. This step is a preferred method for adjusting the capacitor configuration in the embodiment of the present invention, and the adjustment channel of each touch sensor is set before the preset step. Count and adjust the number of capacitors and the value of the capacitor. The setting step of the external adjustment capacitor is to set the adjustment capacitor configured by each touch sensor according to a preset basic capacitance adjustment value, wherein the preset basic capacitance adjustment value is a preset minimum adjustable value, and the external adjustment The setting step of the capacitor includes: in the case that the preset basic capacitance adjustment value is greater than the adjustment channel capacitance value (N>M), the capacitance value is (3 ^R-1 )NM, wherein R is a positive integer from 1 to x, N is the preset base capacitance adjustment value, and M is a rule for adjusting the channel capacitance value of the Rth sensing channel (ie, adjusting the existing parasitic capacitance value of the channel), and configuring each touch The xth adjustment channel of the adjustment channel of the sensor corresponds to the connected adjustment capacitor. Since the adjustment channel has the existence of the existing parasitic capacitance value M, the capacitance value generated by adjusting the capacitor and the adjustment channel will be changed accordingly, and is not completely equal to the capacitance value of the adjustment capacitor itself, when the adjustment capacitor is selected. It is necessary to consider the influence of the existing parasitic capacitance of the channel, in order to correctly estimate the capacitance value generated by the adjustment capacitor and the adjustment channel as a whole, and then the correct selection and matching of the subsequent capacitors. Table 1-1 describes the adjustment capacitors. Example of the rule of the capacitance value that should be achieved: Table 1-1. Regular adjustment of the capacitance value to be achieved by adjusting the capacitor number. Capacitor value required to adjust the capacitor. Adjust the capacitance value generated by the capacitor and the adjustment channel as a whole. M is ( 30 N - M )N ie ( 30 N ) 23N - M ie ( 31 N - M ) 3N ie ( 31 N ) 39N - M ie ( 32 N - M ) 9N ie ( 32 N ) 427N - M ( 33 N - M )27N ie ( 33 N )x3R-1 N - M3R-1 N

According to Table 1-1, taking the adjustment capacitor number 1 as an example, in order to cancel the effect of the existing parasitic capacitance value M, the equation for adjusting the capacitance value of the capacitor must include "subtracting the existing parasitic capacitance. An operator of the value M" to cancel M. Therefore, when the preset basic capacitance adjustment value is greater than the adjustment channel capacitance value (N>M), the sensing channel on each touch sensor can be configured as x (R is 1 to x positive) Integer), and according to the rules of Table 1-1, the x sensing channels are sequentially configured with corresponding numbered adjustment capacitors, and the combination manner is as described in Table 1-2 (only the parts are listed, and the number of combinations thereof will be Depending on the number of tuning capacitors selected and based on the combination of the arrays, the controller can select the combination of capacitances applied to the sensing channels according to the degree of variation of the capacitance values on the adjacent sensing channels. Balancing the degree of variation of the capacitance value on the adjacent sensing channel, that is, completely eliminating the degree of variation (a combination of the capacitance values that can be combined is exactly equal to the degree of the variation) or minimizing the degree of variation (combinable There is no combination of the capacitance values that can be equal to the degree of variation). As for the number of adjustment channels of the configuration in the touch panel device and the corresponding adjustment capacitors, the pre-configuration can be performed according to actual needs (for example, the larger the size of the touch panel, the more adjustment channels are needed to achieve more capacitance combinations). set up. Table 1-2, the combination of the capacitance values achievable by the adjustment capacitor, the capacitance difference of one of the adjacent two sensing channels, and the capacitance difference of the combination of the capacitors applied by the other of the two adjacent sensing channels. (Can eliminate the degree of variation) No 01 No N (maximum capacitance combination that can be achieved by using one set of adjustment channels) 212N2 No 3N2+1 No 4N (Maximum capacitance combination that can be achieved by using two sets of adjustment channels) 32+ 15N326N3+127N318N3 No 9N3+1 No 10N3+2111N3+2 No 12N3+2+1 No 13N (Maximum capacitance combination that can be achieved by using three sets of adjustment channels)

The setting step of the external adjustment capacitor includes: in the second embodiment, when the preset basic capacitance adjustment value is smaller than the adjustment channel capacitance value (N<M), and M≠4N≠2N, according to the order” Capacitance value = 0, N, 3N, 2M, 9N, 27N, 81N, 8M, 243N, where N is the preset base capacitance adjustment value, and M is the adjustment channel capacitance value of the sensing channel (ie, the existing parasitic capacitance of the adjustment channel is adjusted) a rule of "), selectively arranging the adjustment capacitors connected to at least two adjustment channels of each touch sensor, for example, when the number of the external adjustment capacitors is set to two, the connected That is, the adjustment capacitor with a capacitance value of N and 3N, wherein the adjustment capacitor of the number 1 is not connected to any capacitor, and the capacitance values that can be generated by the adjustment capacitor and the adjustment channel as a whole are respectively M, (M+N), ( M+3N). Table 2-1 below describes an example of the rule for adjusting the capacitance value of the capacitor: Table 2-1. Regular adjustment of the capacitance value that should be achieved by adjusting the capacitor. Capacitor number adjustment capacitor required to adjust the capacitor. The capacitance value generated under the overall action is 1 without M (30 M ) 2N ie ( 30 N )M + N ie ( M + 30 N ) 33N is (31 N)M + 3N ie (M + 31 N ) 42 M is (31 M - M )3 M ie ( 31 M) 59N is (32 N)M + 9N ie (M + 32 N) 627N is (33 N )M + 27N ie ( M + 33 N ) 781N ie ( 34 N )M + 81N ie ( M + 34 N) 88M is (32 M - M )9M ie (32 M) 9243N is (35 N )M + 243N ie ( M + 35 N )

Capacitor No. 1 in Table 2-1 allows the adjustment channel to be disconnected from the capacitor or a capacitor that produces a capacitance value of zero. In addition, the combination of the capacitance values achievable by the adjustment capacitor is also a combination of the arrangement of the capacitors, so the following Table 2-2 only lists the combinations of the parts as an example. Table 2-2. Combination of capacitance values achievable by the adjustment capacitors. Capacitance difference of one of the adjacent two sensing channels and the capacitor combination of the other of the two adjacent sensing channels. (Can eliminate the degree of variation) No 021N322N313N3+2+144N5+13+25N536N5+23+17N528N519N5+2+1410N5+32+111N5+3+1412N5+3+2413N6+45+3+2+114N6+15+ 315N6+25+316N6+15+217N6518N6+25+119N

The setting step of the external adjustment capacitor includes: in the third embodiment, the adjustment value of the preset basic capacitance is less than the adjustment channel capacitance value (N<M) and the adjustment channel capacitance value is the fourth adjustment value of the preset basic capacitance In the case of double (4N=M), each of the touches is selectively configured according to the rule of "capacitance value = 0, N, 3N, 18N, 62N, where N is the preset base capacitance adjustment value" Adjusting capacitors connected to at least two adjustment channels of the sensor, for example, when the number of the external adjustment capacitors is set to two, the connected capacitors are capacitors with N, 3N capacitance, wherein The adjustment capacitor of No. 1 is not connected to any capacitor. The capacitance values that can be generated by adjusting the capacitor and the adjustment channel as a whole are (M=4N), (M+N=5N), and (M+3N=7N). Table 3-1 below describes an example of the rule for adjusting the capacitance value of the capacitor: Table 3-1. Regular adjustment of the capacitance value that should be achieved by adjusting the capacitor. Capacitor number adjustment Capacitor value adjustment capacitor and adjustment channel The capacitance value generated under the overall action is 1 without M (4N) 2NM + N is (5N) 33NM + 3N (7N) 418NM + 18N is (22N) 562NM + 62N (66N)

Similarly, capacitor number 1 in Table 3-1 allows the adjustment channel to be disconnected from the capacitor or a capacitor that produces a capacitance value of zero. In addition, the combination of the capacitance values achievable by the adjustment capacitor is also a combination of the arrangement of the capacitors, so the following Table 3-2 only lists the combinations of the parts as an example. Table 3-2. Combination of capacitance values achievable by the adjustment capacitors. Capacitance difference of one of the adjacent two sensing channels and the capacitor combination of the other of the two adjacent sensing channels. (Can eliminate the degree of variation) No 021N322N313N1 No 4N2 No 5N3+126N3 No 7N3+218N2+1 No 9N43+210N3+1 No 11N3+2 No 12N42+113N

The setting step of the external adjustment capacitor includes: in the fourth embodiment, the preset base capacitance adjustment value is smaller than the adjustment channel capacitance value (N<M) and the adjustment channel capacitance value is the preset basic capacitance adjustment value In the case of multiple times (2N=M), each of the touches is selectively configured according to the rules of "capacitance value = 2N, 3N, 5N, 20N, 64N, where N is the preset base capacitance adjustment value". The adjustment capacitors connected to at least two adjustment channels of the sensor are controlled. For example, when the number of external adjustment capacitors is set to three, the connected capacitors are capacitors with capacitance values of 2N, 3N, and 5N. The capacitance values that can be generated by adjusting the capacitor and the adjustment channel are respectively (M+2N=4N), (M+3N=5N), (M+5N=7N). Table 4-1 below describes an example of the rule for adjusting the capacitance value of the capacitor: Table 4-1. Regular adjustment of the capacitance value that should be achieved by adjusting the capacitor. Capacitor number adjustment capacitor required to adjust the capacitor. The capacitance value generated under the overall action is 12NM+2N (4N) 23NM+3N (5N) 35NM+5N (7N) 420NM+20N (22N) 564NM+64N (66N)

Similarly, the combination of the capacitance values achievable by the adjustment capacitor is also the arrangement of the capacitors. Therefore, the following table 4-2 only lists the combinations of the parts as an example: Table 4-2. The combined phase of the capacitance values achievable by the adjustment capacitor The difference between the capacitors applied by one of the adjacent two sensing channels and the capacitor combination of the other two adjacent sensing channels (the degree of variation can be eliminated) is 021N322N313N1 without 4N2 without 5N3 +126N3 no 7N3+218N2+1 no 9N43+210N3+1 no 11N3+2 no 12N42+113N

In summary, the present invention can pre-set the adjustment capacitor of the adjustment channel through the controller (the maximum and minimum values of the adjustable capacitance can be preset according to the size of the touch panel), and can be used in the mass production process. Automatically completing the setting and adjustment of the sensing level of each touch sensor to correct the touch precision of the touch panel product, thereby obtaining the best performance of the touch panel, for example, the touch of the application When the control panel is 24 inches or more, each of the touch sensors can be configured with at least 4 adjustment channels to obtain the best performance of the touch panel.

The invention has been described above in terms of the preferred embodiments, and it should be understood by those skilled in the art that the present invention is not intended to limit the scope of the invention. It should be noted that variations and permutations equivalent to those of the embodiments are intended to be included within the scope of the present invention. Therefore, the scope of protection of the present invention is defined by the scope of the patent application.

110‧‧‧Touch panel
112‧‧‧Sensor unit in the first direction
114‧‧‧Sensing unit in the second direction
130‧‧‧Touch sensor
150‧‧‧Adjust capacitor bank
170‧‧‧ Controller
S100~S300‧‧‧Steps

FIG. 1 is a configuration diagram of a touch panel device according to an embodiment of the present invention. FIG. 2 is a flow chart of a method for adjusting a sensing capacitance value in a touch panel according to an embodiment of the invention.

S100~S300‧‧‧Steps

Claims (11)

A method for adjusting a sensing capacitance value in a touch panel is configured to pre-set a capacitance value of a sensing channel for sensing a touch signal in a touch sensor of the touch panel to generate the touch The adjustment method of the panel controller during operation, the setting adjustment method includes: the capacitor variation amount obtaining step is performed in a plurality of first direction sensing channels and a plurality of second direction sensing channels on the touch panel, Selecting two adjacent sensing channels on the same direction sensing channel to sense the capacitance between the two sensing channels without external touch behavior to obtain a capacitance value variation; Estimating the variation of the balance capacitance value In the step, the touch sensor to which the selected channel belongs is used, and the adjustment capacitors respectively connected to the respective adjustment channels of the touch sensor are used to estimate the required capacitance adjustment value to generate an adjustment configuration. The adjustment configuration is configured to apply an adjustment capacitor connected to each of the adjustment channels of the touch sensor to at least one of the two sensing channels to balance the variation degree of the capacitance value; and adjust the configuration table to be established. Step, each storage system required adjustments within the adjacent touch panel with two direction sensing channel sense channel is configured to generate an adjusted configuration table for the controller using the touch panel. The method of claim 1, further comprising the step of setting an external adjustment capacitor, wherein the adjustment capacitor configured by each touch sensor is set according to a preset basic capacitance adjustment value, wherein the preset The basic capacitance adjustment value is a preset minimum adjustable value, and the setting step of the external adjustment capacitor includes: when the preset basic capacitance adjustment value is greater than the adjustment channel capacitance value, the capacitance value is (3 ^{R- 1} ) NM, where R is a positive integer from 1 to x, N is the preset base capacitance adjustment value, and M is a regular channel capacitance value of the Rth sensing channel. Adjust the adjustment capacitor connected to the xth adjustment channel in the channel. The method of claim 2, wherein the step of setting the external adjustment capacitor further comprises: when the preset basic capacitance adjustment value is smaller than the adjustment channel capacitance value, and M≠4N≠2N, According to the rules of "capacitance value = 0, N, 3N, 2M, 9N, 27N, 81N, 8M, 243N, where N is the preset base capacitance adjustment value", each touch sensor is selectively configured. At least two adjustment capacitors connected to the adjustment channel. The method of claim 2, wherein the step of setting the external adjustment capacitor further comprises: the preset base capacitance adjustment value is less than the adjustment channel capacitance value and the adjustment channel capacitance value is the preset base capacitance adjustment When the value is four times larger, the sensitivity is selectively configured according to the rules of "capacitance value = 0, N, 3N, 18N, 62N, where N is the preset base capacitance adjustment value". The adjustment capacitors connected to at least two of the adjustment channels of the detector. The method of claim 2, wherein the step of setting the external adjustment capacitor further comprises: the preset base capacitance adjustment value is less than the adjustment channel capacitance value and the adjustment channel capacitance value is the preset base capacitance adjustment When the value is twice as large, the sensitivity is selectively configured according to the rules of "capacitance value = 2N, 3N, 5N, 20N, 64N, where N is the preset basic capacitance adjustment value". The adjustment capacitors connected to at least two of the adjustment channels of the detector. The device for adjusting the capacitance value of the touch panel is used for adjusting the capacitance values of the plurality of first direction sensing channels and the plurality of second direction sensing channels on the touch panel according to an adjustment configuration table, including: The plurality of touch sensors include a plurality of sensing channels and a plurality of adjusting channels, wherein the sensing channels are corresponding to the first direction sensing channel and the second direction sensing channel connected to the touch panel; at least one adjusting capacitor, Correspondingly connecting the adjustment channels of the touch sensors respectively; and a controller connecting the touch sensors for using the adjustment configuration table according to the adjustment configuration table when the capacitance value of the sensing channel changes The capacitive effect of the adjustment capacitor is applied to at least one of the adjacent two sensing channels of the change in capacitance value to adjust the sensing level of the sensing channel. The adjusting device of claim 6, wherein in the adjusting capacitors, the adjusting capacitors connected to the touch sensors are configured according to a preset basic capacitance adjusting value as a minimum adjustable value. When the preset base capacitance adjustment value is greater than the capacitance value of the adjustment channel, the capacitance value is (3 ^R-1 )NM, where R is a positive integer from 1 to x, and N is the preset basic capacitance. The adjustment value, M is the adjustment channel capacitance value of the Rth sensing channel, and the adjustment capacitor corresponding to the xth adjustment channel of each of the adjustment channels of each touch sensor is configured. The adjusting device according to Item 7, wherein in the adjusting capacitor, when the preset basic capacitance adjustment value is smaller than the capacitance value of the adjustment channel, and M≠4N≠2N, the system is sequentially followed by “ Capacitance values = 0, N, 3N, 2M, 9N, 27N, 81N, 8M, 243N, where N is the preset base capacitance adjustment value", selectively configuring at least two of each touch sensor Adjust the adjustment capacitor connected to the channel. The adjusting device of claim 7, wherein in the adjusting capacitor, the preset basic capacitance adjustment value is smaller than the capacitance value of the adjustment channel and the capacitance value of the adjustment channel is the preset basic capacitance adjustment value. In the case of four times as large, each touch sensor is selectively configured according to the rule of "capacitance value = 0, N, 3N, 18N, 62N, where N is the preset base capacitance adjustment value" The adjustment capacitors connected to at least two of the adjustment channels. The adjusting device of claim 7, wherein in the adjusting capacitor, the preset basic capacitance adjustment value is smaller than the capacitance value of the adjustment channel and the capacitance value of the adjustment channel is the preset basic capacitance adjustment value. In the case of twice as large, each touch sensor is selectively configured according to the rule of "capacitance value = 2N, 3N, 5N, 20N, 64N, where N is the preset basic capacitance adjustment value" The adjustment capacitors connected to at least two of the adjustment channels. The adjusting device according to any one of the preceding claims, wherein the touch sensor is configured with at least four adjustment channels when the touch panel is 24 吋 or more.