TWI581131B - A method of analyzing two-dimensional inputs to produce at least one non-linear indicator and a touch panel module using that method - Google Patents

Description

Method for analyzing two-dimensional trajectory to generate at least one non-linear index and touch module using the same

The invention relates to a method for recognizing a gesture and a touch module using the same, in particular to an angle between successive displacement units generated according to a gesture, and the accumulated non-linear index is used as a basis for the gesture establishment and the gesture function. Furthermore, it is widely used as a touch module for multi-function touch input on various electronic devices.

With the advancement of touch technology, the traditional mouse function with the touchpad has been widely used in various electronic devices. In use, the conventional touchpad replaces the use of a traditional mouse by detecting the trajectory of an object (such as a finger) on its surface to perform a function of moving a cursor or clicking on a specific option displayed on the screen. .

However, as the additional functions of electronic products become more and more complicated, if the cursor movement and the selection of options are controlled by the conventional touch panel, the complexity of the operation program will inevitably be greatly increased, which not only increases the manipulation. Difficulties, but also reduce the user's willingness to use.

To reduce the complexity of the operating procedure, or to have different gestures to perform the corresponding input function. In practice, this type of manipulation must preset the cut-in, jump-out mode, and the corresponding connection of gestures to specific functions. In other words, according to the trajectory of the sliding on the touch panel, a special function of a special gesture input (for example, click, double-click, drag, window scroll, window zoom, window rotation, etc.) in the window system is recognized.

However, in practice, this method still has the following disadvantages: First, the cut-in and jump-out modes will increase the complexity of the control; second, with As the number of gestures increases, the user must memorize the correspondence between gestures and specific manipulation capabilities, and the number of gesture determination loops and comparison circuits must also increase, which also wastes computational space and takes up circuit design space. Make the electronic device more power-hungry.

Regarding the aforementioned cut-in and jump-out modes, there is also a use of the touchpad surface to draw a separate area for the manipulation of specific functions. Taking the page scrolling as an example, a specific area can be segmented on the surface of the touchpad. When the user uses a specific gesture to control the specific area, the page can be scrolled to facilitate browsing. However, this type of manipulation can only be applied to the scrolling of the page in the vertical direction, and the effect on the control efficiency is not satisfactory.

In view of the above, in order to improve the above disadvantages, the inventors of the present invention propose a method for analyzing a two-dimensional trajectory to generate at least one non-linear index and a touch module using the same; thereby, the user can utilize a simple gesture , to control a variety of functions, and optimize the efficiency of touch operation.

The main purpose of the present invention is to provide a method for analyzing a two-dimensional trajectory to generate at least one non-linear index and a touch module using the same, whereby the user can control various functions by using a simple gesture, and the touch is Operational efficiency is optimized.

To achieve the above object, the present invention provides a method of analyzing a two-dimensional trajectory to generate at least one non-linear index, comprising the steps of: capturing a two-dimensional trajectory, wherein the two-dimensional trajectory is a two-dimensional coordinate position sorted with time. And generating, according to the two-dimensional trajectory, a plurality of displacement units, wherein each displacement unit includes a displacement amount and a displacement direction of the two-dimensional trajectory moved within a predetermined time interval; and sequentially shifting each displacement unit Quantity and one The reference value is compared; when the displacement amount of the displacement unit is greater than the reference value, an angle formed by the displacement direction of the displacement unit and the displacement direction of the previous sequential displacement unit is calculated; the angle is sequentially accumulated to obtain a cumulative angle Wherein the cumulative angle includes an accumulated value and a plus sign; and converting the accumulated angle to at least one non-linear index.

In addition, the present invention also provides a touch module including a sensing surface and a controller. The sensing surface is distributed on the surface with a plurality of proximity sensors for sensing contact of at least one object on the sensing surface. The controller is electrically connected to the plurality of proximity sensors for determining a first array displacement and a second displacement of each of the objects sliding on the sensing surface, and calculating a second displacement between each group and the first displacement An angle formed by accumulating the included angles at an integrated angle, and outputting at least one non-linear index according to the integrated angle; wherein, the second displacement of each group is determined after the first displacement, and the cumulative angle includes a cumulative The value is a plus sign.

In the implementation, the touch module detects the contact position and the contact time of the object on the sensing surface, and determines the nonlinear index according to the contact position, the contact time, and the integrated angle.

For a better understanding of the features and functions of the present invention, the embodiments are described in detail below with reference to the drawings.

Please refer to FIG. 1, which is a flow chart showing a method of analyzing a two-dimensional trajectory of the present invention to generate at least one non-linear index.

In step A1, as shown in FIG. 2, a two-dimensional trajectory 10 is first obtained, and the two-dimensional trajectory 10 is a two-dimensional coordinate position sorted with time, including Together with point 102 and an end point 104; the aforementioned two-dimensional coordinate system can be described by a different coordinate system (for example, a right angle coordinate system or a cylindrical coordinate system); in other words, the point on the contact sensing surface is the origin. The two-dimensional trajectory 10 represents at least a part of a sliding trajectory on a contact sensing surface by an object (for example, a finger); that is, the captured two-dimensional trajectory is the sliding time of any one of the sliding trajectories. Insider.

In addition, in the aspect of initiating the capturing of the two-dimensional trajectory, the following modes can be utilized: First, when the object is detected to contact the contact sensing surface for the first time, the two-dimensional trajectory is started; secondly, when detecting Detecting that the object continuously contacts the contact sensing surface for a certain period of time (preset time), and then starts to capture the two-dimensional trajectory; third, when detecting that the object contacts the specific area of the contact sensing surface (preset time), Start capturing 2D tracks.

In step A2, as shown in FIG. 3, a plurality of displacement units 12 are sequentially generated according to the two-dimensional trajectory 10, wherein each displacement unit 12 includes the two-dimensional trajectory 10 moved within a preset time interval. The amount of displacement and its direction of displacement. The time of occurrence of each displacement unit 12 shown in FIG. 3 is not repeated with each other. However, the displacement unit implementation range of the present invention should not be limited thereto, and the order of occurrence of each displacement unit 12 is related to each other. However, the time of occurrence is reproducible with each other, that is, the end time of the displacement unit of the previous sequence may be later than the start time of the displacement unit of the subsequent sequence.

Then, in step A3, the displacement amount of each displacement unit 12 is sequentially compared with a reference value segment 14; when the displacement amount of the displacement unit 12 is greater than the length of the reference value segment 14, the displacement unit is calculated. The angle formed by the displacement direction and the displacement direction of the previous sequential displacement unit. Accordingly, when it is judged that the displacement amounts of the displacement units 120, 122, and 124 are all greater than the reference value, That is, the angles θ 1 and θ 2 between the aforementioned displacement units 120 and 122 and 122 and 124 are calculated.

Finally, in steps A4 and A5, the foregoing angles are sequentially accumulated to obtain a cumulative angle; wherein the cumulative angle includes an accumulated value and a plus sign; and the accumulated angle is converted into at least one non-linear index. In the present embodiment, as shown in FIG. 3A, wherein the counterclockwise direction is preset to a positive angle, the angles of θ 1 and θ 2 are both positive values.

In addition, the conversion of the foregoing non-linear index can be achieved in many ways; for example, a threshold can be preset, and when the accumulated value of the accumulated angle exceeds the threshold, the non-linear index is converted according to the sign; A formula can also be utilized to convert the aforementioned cumulative angle to the aforementioned non-linear index. The aforementioned non-linear indicators represent the corresponding control signals for the manipulation of specific functions.

In addition, the present invention also provides a touch module. Please refer to FIG. 4 , which is a structural diagram showing the first embodiment of the touch module.

As shown in the figure, in the first embodiment, the touch module 2 includes a sensing surface 20 and a controller 22. The sensing surface 20 is disposed on the surface of the plurality of proximity sensors 202 and is provided with a plurality of sensing regions. The proximity sensor 202 is configured to sense contact of at least one object (eg, a finger) on the sensing surface 20. The controller 22 is electrically connected to the plurality of proximity sensors 202 and has a capture unit 220, a processing unit 222, a calculation unit 224, a conversion unit 226, and a detection unit 228.

The foregoing capturing unit 220 is configured to capture the two-dimensional trajectory 10 (as shown in FIG. 2) The two-dimensional trajectory 10 captured by the processing unit 222 is sequentially processed into a first array and a second displacement of the complex array, wherein the second displacement of each group is determined after the first displacement; subsequently, via the foregoing The calculating unit 224 can calculate an angle between the second displacement and the first displacement in each group, and accumulate the angles at an integrated angle, wherein the cumulative angle includes an accumulated value and a positive sign; finally, the use The conversion unit 226 can output at least one non-linear index 24 according to the foregoing cumulative angle.

The non-linear indicator may be a control signal for controlling an electronic device or a signal for reading by a computer system for control purposes. In addition, the first displacement of each of the groups is a difference in position of the object contacting the sensing surface at two time points, and the second displacement of each group is a difference in position of the object contacting the sensing surface at another time point. And the time point of the second displacement is later than the first displacement time point.

As described above, the foregoing conversion unit 226 can use various methods to achieve the purpose of converting the cumulative angle and outputting a non-linear index; for example, a threshold can be preset, when the accumulated value of the accumulated angle exceeds the threshold, That is, the positive or negative sign is used to convert the aforementioned nonlinear index; or a formula is used to convert the aforementioned cumulative angle into the aforementioned nonlinear index.

When the threshold value is set, the spatial distribution of the plurality of proximity sensors 202 on the sensing surface 20 can be referred to. For example, if the complex proximity sensor 202 is distributed at a pitch of about the width of the finger, the The threshold can be set to 90 degrees; if the complex proximity sensor 202 is distributed at a pitch of less than half the finger width, the threshold can be set to a smaller value such as 45 degrees.

In addition, the controller 20 can detect the contact position and contact time of the object on the sensing surface 20 by using the detecting unit 228, and determine the type of the nonlinear index according to the contact position, the contact time, and the cumulative angle. To perform specific corresponding functions.

Please refer to FIGS. 5A-5E, which are schematic diagrams showing the use of the aforementioned touch module. As shown in FIG. 5A, the sensing surface 20 is provided with four sensing regions 2040, 2042, 2044, and 2046. In operation, the controller (not shown) is assigned according to the starting position of the two-dimensional trajectory. Sensing area to determine what kind of nonlinear index is produced.

In the implementation, as shown in FIG. 5B to FIG. 5E , the user can use the touch module to control the following four functions on the screen 30 of the electronic device 3: the page scrolls vertically, and the page scrolls horizontally. , image rotation and image enlargement / reduction.

As shown in FIG. 5B, the sensing area 2046 above the sensing surface 20 is preset to manipulate the scrolling of the display screen in the vertical direction, and the object first contacts the sensing area 2046 and then slides out a two-dimensional trajectory; When the accumulated value of the two-dimensional trajectory exceeds a threshold, the sign of the cumulative angle is converted into a control signal that can scroll down or up on the screen 30.

Similarly, the sign of the cumulative angle can also be converted into a control signal that can scroll down the page displayed on the screen 30 or scroll up one page; or move the display of the screen 30 upwards. The item displays or the control signal displayed next time.

Figure 5C shows the manipulation of another function, wherein the sensing area 2044 on the left side of the sensing surface 20 is preset to manipulate the display screen in the horizontal direction. And the object first contacts the sensing area 2044 and then slides out a two-dimensional trajectory; when the accumulated value of the two-dimensional trajectory exceeds a threshold, the positive and negative signs of the cumulative angle are respectively converted to be left to the screen or The control signal scrolled to the right.

Similarly, the sign of the cumulative angle can also be converted into a control signal that can turn the page displayed on the screen 30 to the right or to the left.

In the first embodiment, regarding the gesture control page scrolling, an object (ie, a finger) is taken as an example, and the controlled page scrolling system is a constant speed; in other words, the controller only determines the page scrolling. The direction, but does not involve the judgment of speed. However, by manipulating the increase in the number of objects, the speed of page scrolling can be further controlled. For example, the detection unit can be used to detect the number of objects, and the page scrolling speed is increased or decreased proportionally as the number of objects (for example, the number of fingers) increases or decreases.

The 5D image shows the function control of the image rotation, wherein the sensing area 2040 on the right side of the sensing surface 20 is preset as an area corresponding to the function, and the object first contacts the sensing area 2040 and then slides out a two-dimensional trajectory; When the accumulated value of the two-dimensional trajectory exceeds a threshold, the sign of the cumulative angle is converted into a control signal that can rotate the image on the screen 30 clockwise or counterclockwise.

The fifth aspect is a function of displaying the image enlargement/reduction function, wherein the sensing area 2042 below the sensing surface 20 is preset to correspond to the function area, and the object first contacts the sensing area 2040 and then slides out a two-dimensional image. The trajectory; when the cumulative value exhibited by the two-dimensional trajectory exceeds a threshold, the converted non-linear index is respectively a control for enlarging or reducing the image on the screen 30. Signal.

Regarding the image rotation and the manipulation of the image enlargement/reduction function, in addition to the above-mentioned preset threshold to determine the type of control signal represented by the non-linear index, the integrated value of the cumulative angle can be used to further define the control signal. For example, in terms of image rotation, in addition to rotating the image clockwise or counterclockwise by using a clockwise and inverse clock gesture, the angle of rotation in a certain direction may be further determined according to the integrated value of the cumulative angle (for example, 90, 180, 270 degrees). Wait). In addition, in the image enlargement/reduction function, the magnification of the image enlargement or reduction can also be determined according to the integrated value of the cumulative angle.

Please refer to FIG. 6 , which is a structural diagram showing a second embodiment of the touch module of the present invention. In this embodiment, the controller 22' includes a comparison unit 223 in addition to the capture unit 220, the processing unit 222, the calculation unit 224, the conversion unit 226, and the detection unit 228.

The processing unit 222 is configured to sequentially process the two-dimensional trajectory obtained by the capturing unit 220 into a plurality of displacement units; and then, by using the comparing unit 223, the displacement amount of each displacement unit is compared with a reference value. Compared. When the displacement amount of one displacement unit is greater than the reference value, the calculating unit 224 calculates an angle formed by the displacement direction of the displacement unit and the displacement direction of the previous sequential displacement unit, and accumulates the foregoing angle to obtain a cumulative angle. .

In addition, when the number of objects used to manipulate the touch device exceeds one, the capture criterion of the two-dimensional trajectory may be preset--that is, the trajectory generated by capturing some of the plurality of objects is selected; The following four examples are explained.

The first method is to capture the two-dimensional trajectory generated by the centroid position or the geographical center position of the complex object as the displacement criterion to obtain the corresponding nonlinear index. In other words, the first displacement of each group is between two time points, the difference of the central position of the plurality of objects contacting the sensing surface; the second displacement of each group is between the other two time points, and the plurality of objects contacting the sensing surface The difference in the center position; wherein the time point of the second displacement is later than the time point of the first displacement. Taking Figure 7A as an example, the user uses three fingers to touch, but the two-dimensional trajectory captured is generated by the center finger.

The second way is to capture the two-dimensional trajectory generated by the left edge position of the complex object as the displacement criterion. In other words, the first displacement of each group is between two time points, the difference between the position of the left edge of the plurality of objects contacting the sensing surface; the second displacement of each group is between the other two time points, the plurality of objects contacting the The difference in the position of the left edge of the sensing surface; wherein the time point of the second displacement is later than the time point of the first displacement. Taking Figure 7B as an example, the two-dimensional trajectory captured is generated by the left-hand finger.

The third way is to capture the two-dimensional trajectory generated by the right edge position of the complex object as the displacement criterion. In other words, the first displacement of each group is between two time points, the difference between the position of the right edge of the plurality of objects contacting the sensing surface; the second displacement of each group is between the other two time points, the plurality of objects contacting the The difference in the position of the right edge of the sensing surface; wherein the time point of the second displacement is later than the time point of the first displacement. Taking the 7C figure as an example, the two-dimensional trajectory captured is generated by the right-hand finger.

The fourth way is to take the two-dimensional trajectory generated by each object separately, and process it into the first displacement and the second displacement of the complex array, and calculate the cumulative angle. The cumulative value; subsequently, the cumulative value of the cumulative angle of the complex object is compared, and the cumulative angle with the larger cumulative value is converted to a non-linear index to perform a specific steering function.

In summary, the present invention can achieve the intended purpose, and provides a method for analyzing a two-dimensional trajectory to generate at least one non-linear index and a touch module using the same, whereby the user utilizes a simple gesture, that is, A variety of functions can be manipulated to optimize touch operation efficiency. It is extremely valuable for industrial use, and patent applications are filed according to law.

The above description and drawings are merely illustrative of the embodiments of the present invention, and those of ordinary skill in the art can

10‧‧‧Two-dimensional trajectory

102‧‧‧ starting point

104‧‧‧ End

θ 1, θ 2‧‧‧ angle

12, 120, 122, 124‧‧‧ displacement units

14‧‧‧Reference value

2‧‧‧Touch Module

20‧‧‧ Sensing surface

202‧‧‧ proximity sensor

2040, 2042, 2044, 2046‧‧‧ Sensing area

22, 22’‧‧‧ controller

220‧‧‧Capture unit

222‧‧‧Processing unit

223‧‧‧Comparative unit

224‧‧‧Computation unit

226‧‧‧ conversion unit

228‧‧‧Detection unit

24‧‧‧Nonlinear indicators

3‧‧‧Electronic devices

30‧‧‧ screen

Step A1‧‧‧ takes a two-dimensional trajectory, where the two-dimensional trajectory is a two-dimensional coordinate position sorted with time

Step A2‧‧‧ generates a plurality of displacement units in sequence according to the two-dimensional trajectory, wherein each displacement unit includes a displacement amount and a displacement direction of the two-dimensional trajectory moved within a predetermined time interval

Step A3‧‧‧ sequentially compares the displacement of each displacement unit with a reference value; when the displacement of the displacement unit is greater than the reference value, the position is calculated The angle between the displacement direction of the displacement unit and the displacement direction of the previous sequential displacement unit

Step A4‧‧‧ sequentially accumulates the angle to obtain a cumulative angle, wherein the cumulative angle includes an accumulated value and a plus sign

Step A5‧‧‧ Convert the cumulative angle into at least one non-linear indicator

Figure 1 is a flow diagram of a method of analyzing a two-dimensional trajectory to generate at least one non-linear index of the present invention.

Figure 2 is a schematic illustration of step A1 of the method of analyzing a two-dimensional trajectory to produce at least one non-linear index of the present invention.

Figure 3 is a schematic illustration of step A2 of the method of analyzing a two-dimensional trajectory to produce at least one non-linear index of the present invention.

Figure 3A is a schematic illustration of step A3 of the method of analyzing a two-dimensional trajectory to produce at least one non-linear index of the present invention.

FIG. 4 is a schematic structural view of a first embodiment of the touch module of the present invention.

5A to 5E are diagrams showing the first embodiment of the touch module of the present invention. Use the schematic.

FIG. 6 is a schematic structural view of a second embodiment of the touch module of the present invention.

7A to 7C are schematic diagrams showing the use of the touch module of the present invention in a touch operation of a plurality of objects.

Step A1‧‧‧ takes a two-dimensional trajectory, where the two-dimensional trajectory is a two-dimensional coordinate position sorted with time

Step A2‧‧‧ generates a plurality of displacement units in sequence according to the two-dimensional trajectory, wherein each displacement unit includes a displacement amount and a displacement direction of the two-dimensional trajectory moved within a predetermined time interval

Step A3‧‧‧ sequentially compares the displacement amount of each displacement unit with a reference value; when the displacement amount of the displacement unit is greater than the reference value, calculating the displacement direction of the displacement unit and the previous sequential displacement unit Angle formed by the direction of displacement

Step A4‧‧‧ sequentially accumulates the angle to obtain a cumulative angle, wherein the cumulative angle includes an accumulated value and a plus sign

Step A5‧‧‧ Convert the cumulative angle into at least one non-linear indicator

Claims (17)

A method for analyzing a two-dimensional trajectory to generate at least one non-linear index comprises the following steps: A1: defining a plurality of sensing regions on a sensing surface, wherein each sensing region corresponds to a different function; A2: capturing a two-dimensional trajectory, The two-dimensional trajectory is a two-dimensional coordinate position sorted with time; A3: sequentially generating a plurality of displacement units according to the two-dimensional trajectory, wherein each displacement unit includes the two-dimensional trajectory within a preset time interval The displacement amount and the displacement direction of the movement; A4: sequentially compare the displacement amount of each displacement unit with a reference value; when the displacement amount of the displacement unit is greater than the reference value, calculate the displacement direction of the displacement unit and the front The angle formed by the displacement direction of a sequence of displacement units; A5: sequentially accumulating the angle to obtain an integrated angle, wherein the cumulative angle includes a cumulative value and a sign; A6: according to the start of the two-dimensional trajectory The sensing area corresponding to the position triggers the function of the sensing area; and A7: generating at least one non-linear indicator according to the function of the sensing area and the accumulated angle. The method of claim 1, wherein the step A7 is to convert the non-linear index according to the sign when the accumulated value exceeds a threshold. The method of claim 1, wherein the step A7 uses a formula to convert the cumulative angle into a non-linear index. The method of claim 1, wherein the two-dimensional trajectory is at least a portion of an object trajectory on a contact sensing surface. The method of claim 4, wherein the two-dimensional coordinate is based on a point on the contact sensing surface. The method of claim 4, wherein the step A1 is to start capturing the two-dimensional trajectory when the object first contacts the contact sensing surface. The method of claim 4, wherein the step A1 captures any one of the sliding trajectories in the sliding trajectory as the two-dimensional trajectory. A touch module includes: a sensing surface having a plurality of proximity sensors disposed thereon for sensing contact of at least one object on the sensing surface, wherein the sensing surface is provided with a plurality of sensing regions, wherein each sensing region Corresponding to different functions; and a controller electrically connecting the plurality of proximity sensors for determining a first array and a second displacement of the complex array of two-dimensional trajectories generated by sliding each object on the sensing surface, and calculating each group An angle between the second displacement and the first displacement, accumulating the angles at an integrated angle, triggering the function of the sensing area according to the sensing area corresponding to the starting position of the first displacement, and according to the sensing area of the triggering The function and the cumulative angle output are at least one non-linear index; wherein the second displacement of each group is determined after the first displacement, and the cumulative angle includes an accumulated value and a plus sign. The touch module of claim 8, wherein the non-linear index represents whether the accumulated value of the cumulative angle is greater than a threshold. The touch module of claim 8, wherein the controller detects a contact position and a contact time of the object on the sensing surface, and according to the connection The touch position, the contact time, and the cumulative angle determine the non-linear index. The touch module of claim 8, wherein the first displacement of each group is a difference in position of the object contacting the sensing surface at two time points, and the second displacement of each group is The position difference of the object contacting the sensing surface between the other two time points, and the time point of the second displacement is later than the first displacement time point. The touch module of claim 8, wherein the number of objects contacting the sensing surface is greater than one; the controller determines a first array and a second displacement of each object and a corresponding one thereof. The cumulative angle; the controller outputs the non-linearity index based on the cumulative angle having a larger cumulative value. The touch module of claim 8, wherein the non-linear indicator is a control signal for controlling an electronic device. The touch module of claim 8, wherein the non-linear index is a signal read by a computer system. A touch module includes: a sensing surface having a plurality of proximity sensors disposed thereon for sensing contact of at least one object on the sensing surface, the sensing surface having a plurality of sensing regions; and a controller Electrically connecting the plurality of proximity sensors to determine a first array and a second displacement of the complex array of two-dimensional trajectories generated by sliding each object on the sensing surface, and calculating a second displacement between each group and the first displacement An angle formed by accumulating the included angles at an accumulated angle, and outputting at least one non-linear index according to the sensing area to which the starting position of the first displacement belongs and the cumulative angle; wherein the second displacement of each group is determined by After the first displacement, and the cumulative angle includes an accumulated value and a sign, wherein the number of objects contacting the sensing surface is greater than 1; the first displacement of each group is a difference in the center position of the plurality of objects contacting the sensing surface at two time points, and the second displacement of each group is The difference between the central position of the plurality of objects contacting the sensing surface at another time point, and the time point of the second displacement is later than the first displacement time point. A touch module includes: a sensing surface having a plurality of proximity sensors disposed thereon for sensing contact of at least one object on the sensing surface, the sensing surface having a plurality of sensing regions; and a controller Electrically connecting the plurality of proximity sensors to determine a first array and a second displacement of the complex array of two-dimensional trajectories generated by sliding each object on the sensing surface, and calculating a second displacement between each group and the first displacement An angle formed by accumulating the included angles at an accumulated angle, and outputting at least one non-linear index according to the sensing area to which the starting position of the first displacement belongs and the cumulative angle; wherein the second displacement of each group is determined by After the first displacement, the cumulative angle includes an accumulated value and a positive and negative sign, wherein the number of objects contacting the sensing surface is greater than 1; the first displacement of each group is the plurality of objects contacting the second time point The difference in the position of the left edge of the sensing surface, the second displacement of each group is the difference between the position of the left edge of the plurality of objects contacting the sensing surface at the other time point, and the time point of the second displacement is the first The displacement time point is late. A touch module includes: a sensing surface having a plurality of proximity sensors disposed thereon for sensing contact of at least one object on the sensing surface, the sensing surface having a plurality of sensing regions; And a controller electrically connecting the plurality of proximity sensors for determining a first array of displacements and a second displacement of the two-dimensional trajectory generated by sliding each object on the sensing surface, and calculating a second displacement of each group and the first An angle between the displacements, accumulating the included angles at an accumulated angle, and outputting at least one non-linear index according to the sensing area to which the starting position of the first displacement belongs and the cumulative angle; wherein, the second of each group The displacement system is determined after the first displacement, and the cumulative angle includes an accumulated value and a sign, wherein the number of objects contacting the sensing surface is greater than 1; the first displacement of each group is the plurality of objects at two times The difference between the position of the right edge of the sensing surface between the points, the second displacement of each group is the difference between the position of the right edge of the plurality of objects contacting the sensing surface at the other time point, and the time point of the second displacement It is later than the first displacement time point.