Touch pressure determination method

Abstract

The present application is a method for determining the pressure of a touch operation on a touchpad with two force sensors. The method comprises the following steps: a touch operation with an actual force value is applied on a touch location; a first sensing signal value and a second sensing signal value are generated by the two force sensors respectively; the first sensing signal value and the second sensing signal value are summed to obtain a total sensing signal value; a corrected force value of the touch location is obtained; a first corrected signal value and a second corrected signal value of the touch location are obtained by the two force sensors respectively; the first corrected signal value and the second corrected signal value are summed to obtain a total corrected signal value; the actual force value is obtained according to the ratio of the total sensing signal value to the total corrected signal value being the same as the ratio of the actual force value to the corrected force value.

Description

TECHNICAL FIELD

[0001] The present application is a touch pressure judgment method, particularly relates to a touch pressure judgment method applied to a force touch pad provided with at least two force sensors and capable of correctly knowing the position and force of a user's touch pressure operation. BACKGROUND

[0002] Modern people often use notebook computers in daily life. In addition to using an external mouse device to operate the notebook computer, the user can also use a touch pad (Touch Pad) regularly configured on the notebook computer to control and operate, for example, cursor movement or clicking.

[0003] Compared with the horizontal movement and sliding control of a general touch pad, a force touch pad (Force Touch Pad) or a pressure touch pad provides a vertical pressing operation mode, that is, the user's finger can press down, press hard, or long press with force on the pad surface to start different control functions, thereby providing a more natural and intuitive control experience compared with the existing double-click (Doubleclick) or multi-touch (Multi-touch) gestures.

[0004] Unlike the keys of a general keyboard, which are designed with a mechanical structure to provide the user with a pressing feeling, such a force touch pad uses several force sensors to first sense the touch pressure of the user's finger, and then generates a pressing vibration simulating the mechanical structure through a vibration motor to feedback to the user, so that the user can know that the effective touch pressure has been completed.

[0005] However, in order to effectively sense the user's touch pressure, the force sensors need to be arranged in a certain number and evenly distributed in the touch area of the touch pad. If the range of the touch area is larger, the number of force sensors needs to be larger to compensate for the lack of linearity between the pressure source and the sensor, but this will cause a problem of production cost. In addition, when the user is operating, there may be accidental touch that is not intended by the user, for example, the right hand operation is the intended operation of the user, but the left hand accidentally touches the touch area, which may cause misjudgment and affect the operation result of the related control function.

[0006] Therefore, how to effectively obtain the touch pressure of the user to provide subsequent processing and judgment, so that the touch pressure control function of such a force touch pad can be correctly operated, is the main purpose of the development of the present disclosure. SUMMARY

[0007] The present application aims to provide a touch pressure judgment method. The touch pressure judgment method is applied to a force touchpad with at least two force sensors to sense and judge corresponding touch pressure operations, so that the position and force of each touch pressure operation can be correctly known, and the subsequent related applications or preset functions can be correctly executed in accordance with the user's needs, and the inconvenience caused by accidental touch can be eliminated.

[0008] The present application is a touch pressure judgment method applied to a force touchpad. The force touchpad has a processing module, a touch plane, a first force sensor and a second force sensor. The method includes the following steps: making the touch plane receive a first touch pressure operation with a first actual force value, and generating a first touch pressure position corresponding to the first touch pressure operation from the touch plane; generating a first sensing signal value for the first touch pressure operation from the first force sensor, and generating a second sensing signal value for the first touch pressure operation from the second force sensor; summing the first sensing signal value and the second sensing signal value to generate a total sensing signal value by the processing module; obtaining a first correction force value for the first touch pressure position by the processing module; obtaining a first correction signal value for the first touch pressure position by the first force sensor by the processing module, and obtaining a second correction signal value for the first touch pressure position by the second force sensor by the processing module; summing the first correction signal value and the second correction signal value to generate a total correction signal value by the processing module; and obtaining the first actual force value by the processing module according to the ratio of the total sensing signal value to the total correction signal value being the same as the ratio of the first actual force value to the first correction force value.

[0009] In order to better understand the above and other aspects of the present application, the following embodiments are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 Application diagram of the first embodiment of the force touchpad 1 applying the touch pressure judgment method of the present application.

[0011] Figure 2 Flowchart of the first embodiment of the touch pressure judgment method of the present application.

[0012] Figure 3 Application diagram of the second embodiment of the force touchpad 1 applying the touch pressure judgment method of the present application.

[0013] Figure 4A And Figure 4B Flowchart of the second embodiment of the touch pressure judgment method of the present application.

[0014] BRIEF DESCRIPTION OF DRAWINGS:

[0015] 1: force touchpad

[0016] 10: touch plane

[0017] 11: first force sensor

[0018] 12: second force sensor

[0019] PA: first touch pressure position

[0020] PB: second touch pressure position

[0021] S11-S17: steps

[0022] S21-S27: steps DETAILED DESCRIPTION

[0023] The following embodiments are presented to provide a detailed description of the present application, and the embodiments are only used as examples to illustrate the present application and do not limit the scope of the present application. In addition, the figures in the embodiments omit unnecessary or commonly known elements to clearly show the technical features of the present application.

[0024] A first embodiment of the touch pressure judgment method of the present application is described below. Please refer to Figure 1 , which is a schematic diagram of a force touchpad 1 using the touch pressure judgment method of the present application. As shown in Figure 1 , the force touchpad 1 has a touch plane 10, a first force sensor 11, and a second force sensor 12. The first force sensor 11 and the second force sensor 12 are disposed below the touch plane 10 and are arranged at positions that are evenly distributed within the range of the touch plane 10.

[0025] In addition, the force touchpad 1 also has a processing module and a vibration module (not shown in the figure). The processing module is signal connected to the first force sensor 11 and the second force sensor 12 to perform processing and judgment of the touch pressure judgment method of the present application. The vibration module can perform corresponding vibration functions according to the results of the processing and judgment of the processing module.

[0026] As described above, the force touchpad 1 of the present application can be configured on a computer device (not shown in the figure), especially a notebook computer, and can be a user interface or a control panel of the notebook computer to provide a user with horizontal movement, sliding control, and vertical pressing control of a cursor in an operating system. Of course, the concept of the present application is not limited to this. In other embodiments, the force touchpad 1 can also be configured on other electronic devices, such as smart phones, tablet computers, or wearable devices.

[0027] In detail, the computer device can be a general existing electronic device, and the touch pressure judgment method of the present application can be set as a firmware to provide execution, or stored as a running program code in a flash memory to provide the processing module to access and execute, and a touch pressure judgment function is run.

[0028] The main purpose of the touch pressure judgment method of the present application is to judge the force of the user's touch pressure operation by a limited number of force sensors, especially the touch pressure operation of fingers or even palms. The first embodiment is illustrated by the touch pressure operation of two force sensors 11, 12 and a touch pressure position PA. After the position and force of the user's touch pressure operation are found, the computer device can effectively confirm the user's operation intention, and then complete the specified operation. The detailed implementation process is described as follows.

[0029] Please refer to Figure 2 The flow chart of the first embodiment of the touch pressure judgment method of the present application is shown in FIG. 1. First, the touch plane 10 receives a first touch pressure operation with a first actual force value, and the touch plane 10 generates a first touch pressure position PA corresponding to the first touch pressure operation (step S11); second, the first force sensor 11 generates a first sensing signal value for the first touch pressure operation, and the second force sensor 12 generates a second sensing signal value for the first touch pressure operation (step S12); then, the processing module adds the first sensing signal value and the second sensing signal value to generate a total sensing signal value (step S13); then, the processing module obtains a first correction force value for the first touch pressure position PA (step S14); then, the processing module obtains a first correction signal value of the first force sensor 11 for the first touch pressure position PA, and the processing module obtains a second correction signal value of the second force sensor 12 for the first touch pressure position PA (step S15); then, the processing module adds the first correction signal value and the second correction signal value to generate a total correction signal value (step S16); finally, the processing module finds the first actual force value according to the proportion of the total sensing signal value to the total correction signal value being the same as the proportion of the first actual force value to the first correction force value (step S17).

[0030] For the step Sll, in this embodiment, the touch plane 10 is the element for sensing the horizontal movement or sliding of the user's finger on the force touchpad 1. For example, in a capacitive touch, the touch plane 10 has a touch sensing module (not shown in the figure) that can detect the position of the changed static electric field when the finger contacts the touchpad, and thus the movement of the finger. Therefore, the details of the step Sll can be: when the first touch pressure operation occurs on the touch plane 10, the touch sensing module generates the first touch pressure position PA corresponding to the first touch pressure operation on the two-dimensional plane. In other words, the first touch pressure position PA in this embodiment can be considered as information obtained by sensing of the existing element.

[0031] For the step S12, in this embodiment, the two force sensors 11, 12 are independently arranged and independently sensed, and thus generate a sensing signal value, such as the first sensing signal value and the second sensing signal value. Although the two force sensors 11, 12 are averagely distributed relative to the positions of the touch plane 10, the user's finger can touch the touch plane 10 at any position, such as the first touch pressure position PA. Therefore, it can be understood that the closer the touch pressure position is to a force sensor, the greater the sensing signal value generated by the force sensor; on the contrary, the farther the touch pressure position is from a force sensor, the smaller the sensing signal value generated by the force sensor, and the two are in a linear relationship. Even if the two force sensors 11, 12 sense the same touch pressure operation, the sensing signal values obtained by the two force sensors 11, 12 can not be the same.

[0032] For the step S13, in this embodiment, the sum of the first sensing signal value and the second sensing signal value is designed to be directly added. For example, if the first sensing signal value is 2 million units and the second sensing signal value is 4 million units, the total sensing signal value is 6 million units.

[0033] For the steps S14-S15, in this embodiment, the processing module further has a storage unit (not shown in the figure), which stores a comparison table, and the comparison table stores a set of correction signal values corresponding to the first force sensor 11 and the second force sensor 12 for each coordinate on the touch plane 10 and a correction force value corresponding to each coordinate.

[0034] In detail, the force touchpad 1 designed with two force sensors 11, 12 will first go through a calibration procedure before leaving the factory, that is, each point that can be pressed on the touch plane 10 is pressed one by one to detect the sensing results of the two force sensors 11, 12, and record them into the table. The content of the table is recorded in the corresponding information sorted by coordinates (for example, (x, y)); wherein each coordinate will record a calibration force value, and the two force sensors 11, 12 will each record a calibration signal value for the same coordinate.

[0035] In other words, because it is designed with two force sensors 11, 12, a coordinate in the table will correspond to two calibration signal values, even if the user presses the same coordinate with different forces, the two calibration signal values are still fixed. In addition, similarly, even if the user presses the same coordinate with different forces, the calibration force value is still fixed.

[0036] Therefore, the details of steps S14-S15 can be: the first calibration force value is obtained by searching the table according to the coordinates of the first pressing position PA by the processing module; and the first calibration signal value and the second calibration signal value are obtained by searching the table according to the coordinates of the first pressing position PA by the processing module.

[0037] For step S16, in this embodiment, the sum of the first calibration signal value and the second calibration signal value is also designed to be directly added. For example, if the first calibration signal value is 1 million units, the second calibration signal value is 2 million units, then the total calibration signal value is 3 million units.

[0038] For step S17, as mentioned above, since the total sensing signal value can be obtained by sensing, and the total calibration signal value and the first calibration force value can be obtained by table lookup, the only unknown is the first actual force value to be solved. One feature of the present application is that the ratio of the total sensing signal value to the total calibration signal value is the same as the ratio of the first actual force value to the first calibration force value, so that the first actual force value can be solved.

[0039] In detail, let the total sensing signal value be The total calibration signal value is The first calibration force value is F C , and the first actual force value is F, then the above relationship can be written as the following mathematical formula:

[0040]

[0041] Or, it can be expressed as:

[0042]

[0043] wherein a ratio R can be set as:

[0044]

[0045] Therefore, the equation (1-2) can be further rewritten as:

[0046]

[0047] For example, according to the equations (1-1) to (1-4), if the first correction force value F C is 200 grams (g), the total sensing signal value is 6 million units, and the total correction signal value is 3 million units, then the ratio R is 2, and thus the first actual force value F can be calculated as 400 grams (g).

[0048] After the first actual force value is calculated, the computer device to which the method is applied can know the force value of the first touch pressure operation, and thus can perform various processes and applications. For example, the processing module can first judge the first actual force value, and when the first actual force value is greater than a touch pressure threshold value, the processing module can send a feedback instruction to the vibration module, so that the vibration module generates vibration.

[0049] In detail, this application is to judge whether the user is performing effective touch pressure or is just unintentionally touching, and the touch pressure threshold value is designed as the judgment standard. The vibration generated by the vibration module (such as a vibration motor) is fed back to the user, so that the user can know that the effective touch pressure has been completed. In this way, the device can achieve this technical effect with only two force sensors, and successfully eliminates the possible misjudgment situation of the user.

[0050] Alternatively, the computer device to which the method is applied carries an application, and when the processing module judges that the first actual force value is greater than the touch pressure threshold value, the processing module sends a running instruction to the application, so that the application performs a preset function. The application here can be an existing program matched with a general force touchpad, or can be a program specified by the user; and the preset function can be an existing function matched with the application, or can be a function specified by the user, which can be determined according to the actual application situation.

[0051] Now a second embodiment of the touch pressure judgment method proposed in the present application will be described. Please refer to Figure 3 , which is a schematic diagram of the force touchpad 1 to which the touch pressure judgment method of the present application is applied. The force touchpad 1 of the second embodiment is similar to the force touchpad 1 of the first embodiment, and thus the same components are denoted by the same reference numerals, and the description thereof will not be repeated. Figure 1The difference is that the second embodiment is exemplified by two touch operations, but still with two force sensors 11, 12. Since there are two touch operations, this embodiment is particularly used to distinguish and calculate the position and force of multiple touch operations, so as to effectively confirm the user's operation intention and complete the designated operation. The detailed implementation process is described below.

[0052] Please also refer to Figure 4A and Figure 4B The flowchart of the second embodiment of the touch judgment method proposed by the present application. First, the touch plane 10 receives a first touch operation with a first actual force value and a second touch operation with a second actual force value, and generates a first touch position PA corresponding to the first touch operation and a second touch position PB corresponding to the second touch operation by the touch plane 10 (step S21); secondly, another first sensing signal value is generated by the first force sensor 11 for the first touch operation and the second touch operation, and another second sensing signal value is generated by the second force sensor 12 for the first touch operation and the second touch operation (step S22); then, the processing module adds the other first sensing signal value and the other second sensing signal value to generate another total sensing signal value (step S23); then, the processing module obtains a first correction force value for the first touch position PA and a second correction force value for the second touch position PB (step S24); then, the processing module obtains a first correction signal value of the first force sensor 11 for the first touch position PA and a third correction signal value for the second touch position PB, and the processing module obtains a second correction signal value of the second force sensor 12 for the first touch position PA and a fourth correction signal value for the second touch position PB (step S25); then, the processing module adds the first correction signal value, the second correction signal value, the third correction signal value and the fourth correction signal value to generate another total correction signal value (step S26); finally, the processing module calculates the first actual force value and the second actual force value according to the proportion of the other total sensing signal value to the other total correction signal value, which is equal to the proportion of the first actual force value to the first correction force value and the proportion of the second actual force value to the second correction force value (step S27).

[0053] For the step S21, the second embodiment is similar to the first embodiment, and also generates corresponding touch positions on a two-dimensional plane by the touch sensing module, the difference is that the second embodiment has two touch operations at the same time, so there are two touch positions PA, PB.

[0054] For the step S22, in this embodiment, although the two force sensors 11, 12 are each performing independent sensing, because the two pressing operations are occurring simultaneously, the other first sensing signal value generated by the first force sensor 11 is the result of sensing the two pressing operations mixed together; similarly, the other second sensing signal value generated by the second force sensor 12 is also the result of sensing the two pressing operations mixed together. It should be noted that although the purpose of this embodiment is to distinguish and find the actual force values of the two pressing operations, it is not necessary to separately find the sensing result of a force sensor for a pressing operation.

[0055] For the step S23, in this embodiment, the summing of the other first sensing signal value and the other second sensing signal value is designed to be combined into a matrix, for example, the other total sensing signal value is represented as a 2 by 1 matrix.

[0056] For the steps S24-S25, as in the first embodiment, the relevant correction force values and correction signal values are also recorded in the lookup table at the time of correction. In this embodiment, because there are two pressing operations, there are two pressing positions PA, PB. If one pressing position corresponds to one coordinate, then two pressing operations correspond to two correction force values. Because there are two force sensors 11, 12, if one pressing position corresponds to one coordinate, then two pressing operations will have four correction signal values.

[0057] Therefore, the details of steps S24-S25 can be: the first correction force value and the second correction force value are obtained by the processing module searching the lookup table according to the coordinates of the first pressing position PA and the coordinates of the second pressing position PB; and the first correction signal value, the second correction signal value, the third correction signal value, and the fourth correction signal value are obtained by the processing module searching the lookup table according to the coordinates of the first pressing position PA and the coordinates of the second pressing position PB.

[0058] For the step S26, in this embodiment, similarly, the summing of the first correction signal value, the second correction signal value, the third correction signal value, and the fourth correction signal value is also designed to be combined into a matrix, for example, the other total correction signal value is represented as a 2 by 2 matrix.

[0059] For the step S27, as mentioned above, since the other total sensing signal value can be obtained by sensing, and the other total correction signal value, the first correction force value and the second correction force value can be obtained by table lookup, only the first actual force value and the second actual force value to be solved are unknown. Another feature of the present application is that the ratio of the other total sensing signal value to the other total correction signal value is set to be the same as the sum of the ratio of the first actual force value to the first correction force value and the ratio of the second actual force value to the second correction force value, so that the first actual force value and the second actual force value can be solved.

[0060] In detail, let the other total sensing signal value be S the other total correction signal value be S the first correction force value be F CA , the second correction force value be F CB , the first actual force value be F A , and the second actual force value be F B , and refer to the equations (1-1) to (1-4) in the first embodiment, the above-mentioned relationship can be written as the following mathematical equations:

[0061]

[0062] Or, it can be expressed as:

[0063]

[0064]

[0065] wherein R is the sum of R A and R B , R A is the ratio of the first actual force value F A to the first correction force value F CA , and R B is the ratio of the second actual force value F B to the second correction force value F CB . In this embodiment, R in the equation (2-1) is also designed to be a matrix, for example, a 2 by 1 matrix.

[0066] In addition, let the other first sensing signal value be S1, the other second sensing signal value be S2, and the other total sensing signal value S be a 2 by 1 matrix. Next, let the first correction signal value be S CA1 , the second correction signal value be S CA2 , the third correction signal value be S CB1 , and the fourth correction signal value be S CB2and the other total correction signal value is a 2 by 2 matrix. Therefore, equation (2-2) can be further rewritten as:

[0067]

[0068] As mentioned above, only R A and R B are unknowns, that is, only the first actual force value F A and the second actual force value F B are unknowns. Since there are only two unknowns among the eight symbols, and the other six are known, there is enough information to solve the two unknowns after further expanding into simultaneous equations, that is, the first actual force value F A and the second actual force value F B can be solved.

[0069] When the first actual force value and the second actual force value are solved, it means that the computer device applied can know the force magnitude of the first touch pressure operation and the second touch pressure operation, and thus can perform various processing and applications. In addition to the application of the first embodiment mentioned above for determining whether to issue the feedback instruction to the user or to execute the function matched with the related application program, other applications can also be included.

[0070] For example, since there are two touch pressure operations at the same time, it means that one of them can be a false touch not intended by the user. Therefore, the following judgment can be designed: when the first actual force value and the second actual force value are both greater than a touch pressure threshold value, and the second actual force value is less than the first actual force value, the processing module ignores the second actual force value.

[0071] In other words, although both touch pressure operations can pass the touch pressure threshold value, the touch pressure represented by the smaller one is discarded by comparing the magnitudes of the two, so that only the corresponding function of one is executed and the feedback instruction is issued to exclude the possible false touch situation.

[0072] The above two embodiments are related to the correction procedure, and the present application is designed to detect and record each touchable point in the coordinate manner to form the reference table. However, in the actual operation condition, the user can not touch the coordinate with recorded data; for this, the processing method of the present application is to search the table with the closest coordinate, or to determine the final selection result by interpolation or related average method with all the associated coordinates in the vicinity.

[0073] Therefore, the user's touch pressure operation can also have a certain touch pressure area, for example, the first touch pressure position of the first touch pressure operation has a first sensing range, and the second touch pressure position of the second touch pressure operation has a second sensing range. If the operation that is more in line with the user's intention is determined in this case, the following determination can be designed: when the second sensing range is greater than the first sensing range, the processing module ignores the second actual force value.

[0074] In other words, although both touch pressure operations can be normal touch pressure cases, the touch pressure represented by the larger sensing range is discarded in a comparison of touch pressure areas, for example, the touch pressure of the finger is retained, and the touch pressure of the palm or wrist accidentally touched is discarded, so that only the corresponding function of one of them is executed and the feedback instruction is issued, to exclude the possible accidental touch situation.

[0075] The touch pressure determination method of the present application can also be further changed according to the concept disclosed in the above embodiments. For example, three force sensors are provided to sense and determine three touch pressure operations; or more force sensors can be provided for more accurate touch pressure sensing and determination. Regardless of the change, the required formula can be derived according to the concepts of formulas (1-1) to (1-4) and formulas (2-1) to (2-4). It should be noted that since several touch pressure operations represent several unknowns, in order to have enough information to solve the unknown actual force value, the principle of the setting is that the number of force sensors can at most calculate the actual force value of several touch pressure operations.

[0076] It can be understood that the more the number of sensors, the more the total sensing signal value matrix on the left side of the equal sign in formula (2-4) will expand; the more the number of touch pressure operations, the more the proportional summation matrix on the rightmost side of the equal sign in formula (2-4) will expand. However, since the contents of the total correction signal value matrix can be known by looking up the table, for example, if three force sensors are used for two touch pressure operations, the total correction signal value is a 3x2 matrix, so under the condition that the number of force sensors is not less than the number of touch pressure operations, there is enough information to solve the proportional relationship, that is, to solve the actual force value of each touch pressure operation.

[0077] In summary, the touch pressure determination method proposed by the present application can effectively complete the sensing and determination of the corresponding touch pressure operation under the condition of setting at least two force sensors, and then correctly know the position and force of each touch pressure operation, so that the subsequent related application or preset function can be correctly executed in line with the user's demand, and the inconvenience caused by accidental touch is excluded.

[0078] Therefore, the application can effectively solve the related problems in the prior art, thereby successfully achieving the main purpose of the present disclosure.

[0079] Although the present application has been disclosed with examples as above, it is not intended to limit the present application. Those skilled in the art to which the present application pertains, when making various modifications and improvements, can not depart from the concept and scope of the present application. Therefore, the protection scope of the present application shall be subject to the definition of the claims.

Claims

1. A pressure-sensing method applied to a force-sensitive touchpad, the force-sensitive touchpad having a processing module, a touch plane, a first force sensor and a second force sensor, wherein the first force sensor and the second force sensor are linear sensors, the processing module having a storage unit storing a lookup table, the lookup table storing a set of correction signal values ​​corresponding to each coordinate on the touch plane for the first force sensor and the second force sensor, and a correction force value corresponding to each coordinate, and the method comprising the following steps: The touch surface is subjected to a first touch operation with a first actual force value, and a first touch position corresponding to the first touch operation is generated by the touch surface. The first force sensor generates a first sensing signal value in response to the first touch operation, and the second force sensor generates a second sensing signal value in response to the first touch operation. The processing module sums the first sensing signal value and the second sensing signal value to generate a total sensing signal value. The processing module obtains a first correction force value for the first pressure point; The processing module obtains a first correction signal value from the first force sensor for the first touch position, and the processing module also obtains a second correction signal value from the second force sensor for the first touch position. The processing module sums the first correction signal value and the second correction signal value to generate a total correction signal value; and The processing module calculates the first actual force value based on the fact that the ratio of the total sense signal value to the total correction signal value is the same as the ratio of the first actual force value to the first correction force value.

2. The pressure detection method as described in claim 1, wherein the method further comprises the following steps: The processing module obtains the first correction force value by searching the lookup table based on the coordinates of the first pressure point; and The processing module searches the lookup table based on the coordinates of the first touch position to obtain the first correction signal value and the second correction signal value.

3. The touch pressure judgment method as described in claim 1, wherein the force touch panel further comprises a vibration module, and the method further comprises the following steps: when the first actual force value is greater than a touch pressure threshold value, the processing module sends a feedback command to the vibration module to cause the vibration module to vibrate.

4. The touch pressure determination method as described in claim 1, wherein the force touchpad is configured in a computer device, the computer device carries an application, and the method further includes the following steps: when the first actual force value is greater than a touch pressure threshold value, the processing module issues a running command to the application to cause the application to perform a preset function.

5. The touch pressure determination method as described in claim 1, wherein the touch plane has a touch sensing module, and the method further includes the following steps: when the first touch pressure operation occurs on the touch plane, the touch sensing module generates the first touch pressure position corresponding to the first touch pressure operation on a two-dimensional plane.

6. The pressure detection method as described in claim 1, wherein the method further comprises the following steps: The touch surface is subjected to a second touch pressure operation with a second actual force value, and a second touch pressure position corresponding to the second touch pressure operation is generated by the touch surface; The first force sensor generates another first sensing signal value for the first touch operation and the second touch operation, and the second force sensor generates another second sensing signal value for the first touch operation and the second touch operation; The processing module sums the other first sensing signal value and the other second sensing signal value to generate another total sensing signal value; The processing module obtains a second correction force value for the second pressure point; The processing module obtains a third correction signal value of the first force sensor for the second touch position, and the processing module also obtains a fourth correction signal value of the second force sensor for the second touch position. The processing module sums the first correction signal value, the second correction signal value, the third correction signal value, and the fourth correction signal value to generate another total correction signal value; and The processing module calculates the first actual force value and the second actual force value by summing the ratio of the other total sensing signal value to the other total correction signal value to the ratio of the first actual force value to the first correction force value and the ratio of the second actual force value to the second correction force value.

7. The pressure detection method as described in claim 6, wherein the processing module has a storage unit storing a lookup table, and the method further comprises the following steps: The processing module obtains the first correction force value and the second correction force value by searching the lookup table based on the coordinates of the first and second touch positions; and The processing module searches the lookup table based on the coordinates of the first touch position and the second touch position to obtain the first correction signal value, the second correction signal value, the third correction signal value, and the fourth correction signal value.

8. The pressure judgment method as described in claim 6, wherein the method further comprises the following steps: when both the first actual force value and the second actual force value are greater than a pressure threshold value, and the second actual force value is less than the first actual force value, the processing module ignores the second actual force value.

9. The touch pressure determination method as described in claim 6, wherein the first touch pressure position of the first touch pressure operation has a first sensing range, the second touch pressure position of the second touch pressure operation has a second sensing range, and the method further includes the following step: when the second sensing range is greater than the first sensing range, the processing module ignores the second actual force value.

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