Folding angle determination method and device, mobile terminal and readable storage medium

Abstract

The invention relates to a folding angle determining method and device, a mobile terminal and a readable storage medium, the method is applied to a driving device in the mobile terminal, the mobile terminal further comprises a flexible touch display screen, and the flexible touch display screen comprises a plurality of first electrodes arranged at intervals in the first direction. The flexible touch display screen is provided with a folding line in the first direction, and the method comprises the steps that all first electrodes in a first half screen are determined as a driving electrode, mutual capacitance values between the first electrodes and the driving electrode in a second half screen are detected, multiple mutual capacitance values are obtained, the folding angle of the flexible touch display screen is determined according to the multiple mutual capacitance values, and the folding angle of the flexible touch display screen is determined according to the folding angle. The first half screen and the second half screen are symmetrical relative to the folding line. By adopting the method, the folding angle is accurately determined through the detected mutual capacitance value between the electrodes in the two half screens which can be folded. In addition, due to the fact that all the electrodes in the half screen which can be folded serve as a driving electrode together, the accuracy and flexibility of the determined folding angle are improved.

Description

Technical Field

[0001] The present application relates to the field of terminal technology, and in particular to a folding angle determination method, device, mobile terminal and readable storage medium. Background Art

[0002] Flexible organic light-emitting diode (OLED) displays have the advantages of active light emission, large viewing angle, wide color gamut, high brightness, fast response speed, low power consumption, and bendable structure. Therefore, OLED displays gradually replace liquid crystal displays (LCD) to become the mainstream of display technology. Folding mobile terminals generally use flexible OLEDs. During the use of folding mobile terminals, the folding angle needs to be detected. Therefore, how to accurately detect the folding angle is very important. Summary of the invention

[0003] Based on this, it is necessary to provide a folding angle determination method, device, mobile terminal and readable storage medium that can accurately detect the folding angle through the mutual capacitance value to address the above technical problems.

[0004] In a first aspect, the present application provides a folding angle determination method, which is applied to a driving device in a mobile terminal, wherein the mobile terminal further includes a flexible touch display screen, wherein the flexible touch display screen includes a plurality of first electrodes spaced apart along a first direction, and wherein the flexible touch display screen has a folding line along the first direction, wherein the method includes:

[0005] Determine all first electrodes in the first half screen as a driving electrode;

[0006] detecting mutual capacitance values ​​between each of the first electrodes and the driving electrodes in the second half screen to obtain a plurality of mutual capacitance values, wherein the first half screen and the second half screen are symmetrical with respect to the folding line;

[0007] A folding angle of the flexible touch display screen is determined according to the multiple mutual capacitance values.

[0008] In a second aspect, the present application further provides a folding angle determination device, which is applied to a driving device in a mobile terminal, wherein the mobile terminal further includes a flexible touch display screen, wherein the flexible touch display screen includes a plurality of first electrodes spaced apart along a first direction, and wherein the flexible touch display screen has a folding line along the first direction, wherein the device includes:

[0009] A first determining unit, used for determining all first electrodes in the first half screen as one driving electrode;

[0010] a detection unit, used for detecting mutual capacitance values ​​between each of the first electrodes and the driving electrodes in the second half screen to obtain a plurality of mutual capacitance values, wherein the first half screen and the second half screen are symmetrical with respect to the folding line;

[0011] The second determining unit is configured to determine a folding angle of the flexible touch display screen according to the multiple mutual capacitance values.

[0012] In a third aspect, the present application further provides a mobile terminal, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method provided in the first aspect when executing the computer program.

[0013] In a fourth aspect, the present application further provides a mobile terminal, comprising a processor, a driving device and a flexible touch display screen, wherein the driving device is electrically connected to the processor and the flexible touch display screen, respectively, the flexible touch display screen comprises a plurality of first electrodes spaced apart along a first direction, and the flexible touch display screen has a folding line along the first direction;

[0014] The processor is used to generate a detection instruction for detecting a folding angle of the flexible touch display screen;

[0015] The driving device is used to determine all the first electrodes in the first half screen as a driving electrode according to the detection instruction, detect the mutual capacitance value between each of the first electrodes and the driving electrode in the second half screen, obtain a plurality of mutual capacitance values, and determine the folding angle of the flexible touch display screen according to the plurality of mutual capacitance values, and the first half screen and the second half screen are symmetrical relative to the folding line.

[0016] In a fifth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the method provided in the first aspect.

[0017] In a sixth aspect, the present application further provides a computer program product, comprising a computer program, which implements the steps of the method provided in the first aspect when executed by a processor.

[0018] In an embodiment of the present application, a mobile terminal includes a driving device and a flexible touch display screen, the flexible touch display screen includes a plurality of first electrodes spaced apart along a first direction, and the flexible touch display screen has a folding line along the first direction; the driving device determines all the first electrodes in the first half screen as a driving electrode, detects the mutual capacitance between each first electrode and the driving electrode in the second half screen to obtain a plurality of mutual capacitance values, and determines the folding angle of the flexible touch display screen according to the plurality of mutual capacitance values, and the first half screen and the second half screen are symmetrical relative to the folding line. It can be seen that the mutual capacitance between the electrodes in the two half screens that can be folded can be detected first, and then the folding angle of the flexible touch display screen can be determined according to these mutual capacitance values, so the folding angle can be accurately determined by the mutual capacitance between the electrodes in the two half screens that can be folded. In addition, since all the electrodes in a half screen that can be folded are used together as a driving electrode, the area of ​​the driving electrode can be increased, the accuracy and sensitivity of the detected mutual capacitance value can be improved, and thus the accuracy and flexibility of the determined folding angle can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is a structural schematic diagram of a mobile terminal provided in an embodiment of the present application;

[0021] Figure 2 is a schematic diagram of a flexible touch display screen provided in an embodiment of the present application;

[0022] Figure 3 is a schematic diagram of a flexible touch display screen provided in an embodiment of the present application during folding angle detection;

[0023] Figure 4 It is a flow chart of a method for determining a folding angle provided in an embodiment of the present application;

[0024] Figure 5 is a flow chart of another method for determining a folding angle provided in an embodiment of the present application;

[0025] Figure 6 is a structural schematic diagram of a folding angle determination device provided in an embodiment of the present application;

[0026] Figure 7 It is a structural schematic diagram of another mobile terminal provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] In order to detect the folding angle of the foldable mobile terminal, magnets can be installed on both sides of the folded screen, the magnetic force can be sensed by a Hall sensor installed in the hinge area, and the folding angle can be determined according to the magnitude of the sensed magnetic force.

[0029] It can be seen that detecting the folding angle requires installing a magnet and a Hall sensor in the mobile terminal, which results in a heavier weight and higher cost of the mobile terminal.

[0030] Figure 1 Schematic diagram of a mobile terminal provided by an embodiment of the present application. Figure 1 As shown, the mobile terminal may include a processor, a driving device and a flexible touch display screen. The driving device may be electrically connected to the processor and the flexible touch display screen respectively.

[0031] The flexible touch display screen may include a plurality of first electrodes spaced apart along a first direction and a plurality of second electrodes spaced apart along a second direction. The first direction is perpendicular to the second direction, and the first electrodes are insulated from the second electrodes. The flexible touch display screen has a folding line along the first direction, that is, the flexible touch display screen can be folded along the folding line in the first direction. Each first electrode is intersected with a plurality of second electrodes, and each second electrode is intersected with a plurality of first electrodes.

[0032] The driving devices are electrically connected to the plurality of first electrodes and the plurality of second electrodes respectively.

[0033] The first direction may be the horizontal direction of the flexible touch display screen, and the second direction may be the vertical direction of the flexible touch display screen. The mobile terminal may be folded along a horizontal folding line.

[0034] The first direction may be the longitudinal direction of the flexible touch display screen, and the second direction may be the transverse direction of the flexible touch display screen. The mobile terminal may be folded along a longitudinal folding line.

[0035] The first electrode may be located above the second electrode or below the second electrode.

[0036] The following description is made by taking the first direction being the horizontal direction of the flexible touch display screen and the second direction being the vertical direction of the flexible touch display screen as an example.

[0037] For example, Figure 2 is a schematic diagram of a flexible touch display screen provided in an embodiment of the present application. Figure 2As shown, the flexible touch display screen may include 2*N first electrodes and M second electrodes. Each first electrode is arranged crosswise with the M second electrodes, and each second electrode is arranged crosswise with the 2*N first electrodes. The folding line divides the flexible touch display screen into two half screens in the horizontal direction, namely the upper half screen and the lower half screen. Each half screen may include N first electrodes, and the N first electrodes in the two half screens are symmetrically arranged along the folding line. The 2*N first electrodes and the M second electrodes are electrically connected to the driving device respectively. M and N are integers greater than 1.

[0038] The processor may generate a first detection instruction for detecting the folding angle of the flexible touch display screen, and then send the first detection instruction to the driving device. The processor may generate the first detection instruction periodically.

[0039] After receiving the first detection instruction from the processor, the driving device can determine all the first electrodes in the first half screen as a driving electrode according to the first detection instruction, that is, in response to the first detection instruction, and can detect the mutual capacitance between each first electrode and the driving electrode in the second half screen to obtain multiple mutual capacitance values, and can determine the folding angle of the flexible touch display screen according to the multiple mutual capacitance values. The first half screen and the second half screen are symmetrical relative to the folding line.

[0040] The driving device can synchronously provide the first DC voltage signal to all the first electrodes in the first half screen, so that all the first electrodes in the first half screen serve as one driving electrode.

[0041] For example, Figure 3 FIG. 1 is a schematic diagram of a flexible touch display screen provided in an embodiment of the present application during folding angle detection. Figure 3 As shown, when detecting the folding angle, the N first electrodes in the upper half of the flexible touch display screen are a driving electrode (abbreviated as Tx), that is, the N first electrodes in the upper half of the screen are used as a driving electrode as a whole, and the N first electrodes in the lower half of the screen are respectively N sensing electrodes (abbreviated as Rx), that is, the N first electrodes in the lower half of the screen are used as N independent Rx.

[0042] The detailed description of how the driving device determines the folding angle can be referred to the description of the folding angle determination method below, which will not be repeated here.

[0043] The processor may also generate a second detection instruction for detecting a user's touch operation on the flexible touch display screen, and then send the second detection instruction to the driving device. The processor may periodically generate the second detection instruction.

[0044] After the driving device receives the second detection instruction from the processor, all the second electrodes can be determined as driving electrodes according to the second detection instruction to obtain multiple driving electrodes, and each first electrode in the first half screen can be determined as a sensing electrode. Then, the mutual capacitance value between the driving electrode and the sensing electrode can be detected, and whether there is a user touch operation on the flexible touch display screen can be determined based on the mutual capacitance value.

[0045] For example, Figure 2 As shown, in the case of detecting a user's touch operation, the M second electrodes are used as M Txs, and the 2*N first electrodes are used as 2*N Rxs.

[0046] The time for detecting the folding angle and the time for detecting the touch operation are different, that is, the cycles for detecting the folding angle and the time for detecting the touch operation are staggered, that is, either the folding angle or the touch operation is detected at the same time, that is, the detection of the folding angle and the detection of the touch operation are staggered. Their detection cycles can be the same.

[0047] The flexible touch display screen may include a touch screen and a display screen. The touch screen is located on or above the display screen. The driving device is a driving device for driving the touch screen. The touch screen may include a plurality of first electrodes spaced apart along a first direction and a plurality of second electrodes spaced apart along a second direction.

[0048] It should be understood that the above is an exemplary description of the structure of the mobile terminal and does not limit the structure of the mobile terminal. Exemplarily, the mobile terminal may also include a display driver integrated circuit (DDIC), the DDIC is electrically connected to the display screen and the processor, and the driver is electrically connected to the touch screen and the processor.

[0049] The mobile terminal may be a foldable mobile phone or the like provided with a flexible touch display screen, and the flexible touch display screen may be a device that can be folded along a folding line.

[0050] Based on the above mobile terminal, Figure 4 is a flow chart of a folding angle determination method provided in an embodiment of the present application. The folding angle determination method can be applied to a driving device in a mobile terminal. Figure 4 As shown, the folding angle determination method may include the following steps.

[0051] 401. Determine all first electrodes in the first half screen as a driving electrode.

[0052] After receiving the first detection instruction, the driving device may determine or configure all the first electrodes in the first half screen as one driving electrode, that is, all the first electrodes in the first half screen are collectively regarded as one driving electrode.

[0053] The first half screen is any half screen of the two half screens divided by the folding line of the flexible touch display screen. When the flexible touch display screen is folded along the horizontal folding line, the first half screen can be the upper half screen of the flexible touch display screen, or the lower half screen of the flexible touch display screen. When the flexible touch display screen is folded along the vertical folding line, the first half screen can be the left half screen of the flexible touch display screen, or the right half screen of the flexible touch display screen.

[0054] 402. Detect mutual capacitance values ​​between each first electrode and the driving electrode in the second half screen to obtain multiple mutual capacitance values.

[0055] In the process of detecting the folding angle, all the first electrodes in the first half screen are used together as a driving electrode, and the first electrodes in the second half screen are used as independent sensing electrodes.

[0056] Therefore, after the driving device determines all the first electrodes in the first half screen as a driving electrode, the mutual capacitance value between each first electrode in the second half screen and the driving electrode can be detected, that is, the mutual capacitance value between each sensing electrode in the second half screen and the driving electrode is detected respectively to obtain multiple mutual capacitance values.

[0057] For example, Figure 3 As shown, the driving device can respectively detect the mutual capacitance value between each of the N first electrodes in the lower half screen and the driving electrode in the upper half screen to obtain N mutual capacitance values.

[0058] The first half screen and the second half screen are symmetrical with respect to the folding line, that is, the second half screen is another half screen symmetrically arranged with respect to the first half screen along the folding line.

[0059] 403. Determine a folding angle of the flexible touch display screen according to the multiple mutual capacitance values.

[0060] The driving device can determine the folding angle of the flexible touch display screen according to multiple mutual capacitance values. The driving device can determine the folding angle of the flexible touch display screen according to one mutual capacitance value among the multiple mutual capacitance values, or according to multiple mutual capacitance values ​​among the multiple mutual capacitance values.

[0061] exist Figure 4In the folding angle determination method shown, the mutual capacitance value between the electrodes in the two half-screens that can be folded can be detected first, and then the folding angle of the flexible touch display screen can be determined according to the mutual capacitance value. Therefore, the folding angle can be accurately determined by detecting the mutual capacitance value between the electrodes in the two half-screens that can be folded. In addition, the folding angle can be detected by the existing electrodes in the flexible touch display screen of the mobile terminal, without the need for additional devices, components or apparatuses, which can reduce the weight and cost of the mobile terminal. Furthermore, since all the electrodes in a half-screen that can be folded are used as a driving electrode, the area of ​​the driving electrode can be increased, the accuracy and sensitivity of the detected mutual capacitance value can be improved, and thus the accuracy and flexibility of the determined folding angle can be improved.

[0062] Based on the above mobile terminal, Figure 5 FIG. 1 is a flow chart of another method for determining a folding angle provided in an embodiment of the present application. The method for determining a folding angle can be applied to a driving device in a mobile terminal. Figure 5 As shown, the folding angle determination method may include the following steps.

[0063] 501. Determine all first electrodes in the first half screen as a driving electrode.

[0064] After receiving the first detection instruction, the driving device may determine or configure all the first electrodes in the first half screen as one driving electrode, that is, all the first electrodes in the first half screen are collectively regarded as one driving electrode.

[0065] The first half screen is any half screen of the two half screens divided by the folding line of the flexible touch display screen. When the flexible touch display screen is folded along the horizontal folding line, the first half screen can be the upper half screen of the flexible touch display screen, or the lower half screen of the flexible touch display screen. When the flexible touch display screen is folded along the vertical folding line, the first half screen can be the left half screen of the flexible touch display screen, or the right half screen of the flexible touch display screen.

[0066] The driving device can synchronously provide the first DC voltage signal to all the first electrodes in the first half screen, that is, can provide the same DC voltage signal to all the first electrodes in the first half screen, so that all the first electrodes in the first half screen can be determined as one driving electrode.

[0067] For example, Figure 3 As shown, the driving device can synchronously provide the same DC voltage signal to the N first electrodes in the upper half screen, so that the N first electrodes in the upper half screen serve as one driving electrode.

[0068] 502. Provide a second DC voltage signal to each second electrode.

[0069] After receiving the first detection instruction, the driving device can also provide a second DC voltage signal to each second electrode. The second DC voltage signal can be a DC voltage signal of zero potential or a DC voltage signal of other potentials. The first DC voltage signal and the second DC voltage signal can be different.

[0070] In the process of detecting the folding angle, the mobile terminal has been displaying data through the display screen. Since the data displayed on the display screen will interfere with the detection of the mutual capacitance value between the electrodes in the upper touch screen, the accuracy of the detected mutual capacitance value is low, which reduces the accuracy of the folding angle. In order to avoid the influence of the data displayed on the display screen on the folding angle, the driving device can provide a second DC voltage signal to each second electrode so as to shield the noise interference generated by the display of the lower display screen, thereby improving the accuracy of the detected mutual capacitance value, and further improving the accuracy of the determined folding angle.

[0071] 503. Detect the mutual capacitance value between each first electrode and the driving electrode in the second half screen to obtain a plurality of mutual capacitance values.

[0072] In the process of detecting the folding angle, all the first electrodes in the first half screen are used together as a driving electrode, and the first electrodes in the second half screen are used as independent sensing electrodes.

[0073] Therefore, after the driving device determines all the first electrodes in the first half screen as one driving electrode and provides the second DC voltage signal to each second electrode, the mutual capacitance value between each first electrode in the second half screen and the driving electrode can be detected.

[0074] The driving device may first detect the electrical signals of the first electrodes in the second half screen, and then determine the mutual capacitance between the first electrodes in the second half screen and the driving electrode according to the electrical signals of the first electrodes in the second half screen to obtain multiple mutual capacitance values.

[0075] The electrical signal of each first electrode in the second half screen detected by the driving device may be a current signal or a voltage signal.

[0076] For example, Figure 3 As shown, the driving circuit can first detect the current signal or voltage signal of each of the N first electrodes in the lower half screen, and then determine the mutual capacitance values ​​between the N first electrodes and the driving electrode in the upper half screen according to the current signals or voltage signals of the N first electrodes, so as to obtain N mutual capacitance values.

[0077] 504. Determine a folding angle of the flexible touch display screen according to the multiple mutual capacitance values.

[0078] The driving device can determine the folding angle of the flexible touch display screen according to multiple mutual capacitance values. The driving device can determine the folding angle of the flexible touch display screen according to one mutual capacitance value among the multiple mutual capacitance values, or according to multiple mutual capacitance values ​​among the multiple mutual capacitance values.

[0079] In some embodiments, after the driving device obtains multiple mutual capacitance values, it can first select a first mutual capacitance value from the multiple mutual capacitance values, determine the current folding angle range based on the first mutual capacitance value, select a mutual capacitance value from the multiple mutual capacitance values ​​based on the current folding angle range to obtain a second mutual capacitance value, and then determine the folding angle of the flexible touch display screen based on the second mutual capacitance value.

[0080] The first mutual capacitance value is the mutual capacitance value corresponding to the first target electrode. The first target electrode is the first electrode located in the middle of the second half screen. When the number of first electrodes in the second half screen is an odd number, the first target electrode is a first electrode located in the middle of the second half screen. When the number of first electrodes in the second half screen is an even number, the first target electrode may be any first electrode of the two first electrodes located in the middle of the second half screen, or may be the two first electrodes located in the middle of the second half screen.

[0081] The second mutual capacitance value is a mutual capacitance value corresponding to a second target electrode, and the second target electrode is a first electrode in the second half screen that is different from the first target electrode.

[0082] It can be seen that the folding angle range can be roughly located according to the mutual capacitance value of the first electrode located in the middle of the second half screen, and then the first electrode for precise positioning can be determined according to the roughly located folding angle range. The folding angle can be precisely located according to the mutual capacitance value corresponding to the first electrode, so that the folding angle can be determined quickly and accurately.

[0083] When the flexible touch display screen is in the folding process, that is, the folding angle is greater than 0° and less than 180°, the distances between different first electrodes in the second half screen and the driving electrodes in the first half screen are different. Therefore, when the folding angle is the same, the mutual capacitance values ​​corresponding to different first electrodes in the second half screen are different. The closer the distance between the first electrode in the second half screen and the folding line (or folding axis), the greater the corresponding mutual capacitance value, and as the folding angle decreases, the mutual capacitance value gradually increases with a certain gradient. The farther the distance between the first electrode in the second half screen and the folding line, that is, the first electrode in the second half screen far away from the folding line, the smaller the corresponding mutual capacitance value, and the change in the corresponding mutual capacitance value with the change of the folding angle is also small.

[0084] The distance between the first electrode and the folding line in the second half screen is different, and the measurable folding angle range is different.

[0085] Exemplarily, it is assumed that the lower half of the screen includes 6 first electrodes, which are Rx1, Rx2, Rx3, Rx4, Rx5 and Rx6 in order from the distance from the folding line to the farthest. Since Rx1 and Rx2 are close to Tx of the upper half of the screen during the folding process of the flexible touch display screen, the mutual capacitance between Rx1 and Rx2 and Tx is large, so the folding angle range that Rx1 and Rx2 can measure is 0°~180°. Rx3 and Rx4 are located in the middle of the 6 first electrodes. When the folding angle is greater than 90°, the mutual capacitance between Rx3 and Rx4 and Tx is almost 0, and the mutual capacitance value changes little (that is, not obvious) with the change of the folding angle. Therefore, the folding angle range that Rx3 and Rx4 can measure is 0°~90°. When the folding angle is greater than 60°, the mutual capacitance between Rx5 and Rx6 and Tx is almost 0, and the mutual capacitance changes slightly (not obvious) with the change of the folding angle. Therefore, the folding angle range that can be measured by Rx5 and Rx6 is 0°~60°.

[0086] It can be seen that the folding angle ranges that can be measured by different first electrodes in the second half screen are different, but there is an overlap between the folding angle ranges that can be measured by different first electrodes in the second half screen. However, when the folding angle is small, such as the folding angle is between 0° and 30°, the mutual capacitance value corresponding to the first electrode closer to the folding line in the second half screen is large, and the mutual capacitance value is less sensitive to the change of the folding angle, so that the folding angle cannot be accurately determined using these mutual capacitance values. When the folding angle is large, such as greater than 80°, the mutual capacitance value corresponding to the first electrode farther from the folding line in the second half screen is small, and the mutual capacitance value is less sensitive to the change of the folding angle. As the folding angle changes, the change in the corresponding mutual capacitance value is also small, so that the folding angle cannot be accurately determined using these mutual capacitance values.

[0087] It can be seen that the ranges of folding angles that can be accurately measured by different first electrodes in the second half screen may be different. Therefore, in order to accurately determine the folding angle, different measurement angle ranges can be set for different first electrodes in the second half screen, that is, the measurement angle ranges corresponding to different first electrodes in the second half screen are different, that is, the ranges of folding angles accurately measured by different first electrodes in the second half screen are different. The measurement angle ranges corresponding to different first electrodes in the second half screen may overlap or may not overlap.

[0088] Exemplarily, assuming that the lower half of the screen includes 6 first electrodes, which are Rx1, Rx2, Rx3, Rx4, Rx5 and Rx6 in order from the distance to the folding line, and the measurement angle ranges corresponding to these 6 first electrodes are 135°~180°, 90°~135°, 75°~90°, 60°~75°, 30°~60°, and 0°~30°, respectively.

[0089] The mutual capacitance value between the first electrode in the second half screen and the driving electrode in the first half screen is different when the folding angle is different. When the folding angle is fixed, the mutual capacitance value between the first electrode in the second half screen and the driving electrode in the first half screen remains unchanged. Therefore, some mutual capacitance values ​​corresponding to the folding angles can be measured in advance, and the corresponding relationship between these folding angles and mutual capacitance values ​​can be stored in the form of a capacitance table for subsequent call.

[0090] The second half screen includes as many first electrodes as there can be as many capacitance tables. The capacitance table is a table of correspondence between the mutual capacitance value and the folding angle between the first electrode in the second half screen and the driving electrode, that is, a table of correspondence between the mutual capacitance value corresponding to the first electrode and the folding angle. Exemplarily, in the case where the second half screen includes N first electrodes, there can be N capacitance tables, and the N first electrodes in the second half screen correspond one-to-one to the N capacitance tables, that is, each first electrode in the second half screen uniquely corresponds to one capacitance table. These capacitance tables can be stored in the driving device, or in a location other than the driving device in the mobile terminal. Exemplarily, these capacitance tables can be stored in a read-only memory (ROM) in the driving device. Exemplarily, these capacitance tables can be stored in a memory in the mobile terminal.

[0091] After the driving device selects the first mutual capacitance value, the corresponding first capacitance value table can be obtained, that is, the first capacitance value table corresponding to the first target electrode can be obtained, and then it can be determined whether the first capacitance value table includes the first mutual capacitance value. When the first capacitance value table includes the first mutual capacitance value, the folding angle of the flexible touch display screen can be determined to be the folding angle corresponding to the first mutual capacitance value in the first capacitance value table, which can improve the efficiency of determining the folding angle. The first capacitance value table is a table of correspondence between the mutual capacitance value corresponding to the first target electrode and the folding angle.

[0092] In the case where the first capacitance table includes the first mutual capacitance value, the driving device may also determine the folding angle corresponding to the first mutual capacitance value in the first capacitance table, and then determine whether the folding angle is within the measurement angle range corresponding to the first target electrode. In the case where the folding angle is within the measurement angle range corresponding to the first target electrode, the folding angle of the flexible touch display screen may be determined to be the folding angle, which may improve the efficiency and accuracy of determining the folding angle. In the case where the folding angle is outside the measurement angle range corresponding to the first target electrode, the driving device may select a mutual capacitance value from a plurality of mutual capacitance values ​​according to the folding angle to obtain a second mutual capacitance value.

[0093] When the first capacitance table does not include the first mutual capacitance value, the driving device may determine the current folding angle range according to the first mutual capacitance value and the first capacitance table.

[0094] The driving device can determine whether the first mutual capacitance value is less than the minimum mutual capacitance value in the first capacitance table, or greater than the maximum mutual capacitance value in the first capacitance table. When the first mutual capacitance value is less than the minimum mutual capacitance value in the first capacitance table, it can be determined that the current folding angle range is the folding angle corresponding to the minimum mutual capacitance value in the first capacitance table~180°. When the first mutual capacitance value is greater than the maximum mutual capacitance value in the first capacitance table, it can be determined that the current folding angle range is 0°~the folding angle corresponding to the largest mutual capacitance value in the first capacitance table. When the first mutual capacitance value is greater than the minimum mutual capacitance value in the first capacitance table and less than the maximum mutual capacitance value in the first capacitance table, two mutual capacitance values ​​with the smallest capacitance difference from the first mutual capacitance value in the first capacitance table can be determined, and the range of folding angles corresponding to the two mutual capacitance values ​​in the first capacitance table can be determined as the current folding angle range.

[0095] After the driving device determines the current folding angle range, it can determine whether the current folding angle range is within the measurement angle range corresponding to the first target electrode. If the current folding angle range is within the measurement angle range corresponding to the first target electrode, the folding angle of the flexible touch display screen can be determined according to the first mutual capacitance value and the first capacitance table. Unnecessary processing can be avoided, thereby reducing the power consumption of the driving device and saving the computing resources of the driving device, thereby reducing the power consumption of the mobile terminal and saving the computing resources of the mobile terminal.

[0096] When the current folding angle range is within the measurement angle range corresponding to the first target electrode, the driving device may first determine the two mutual capacitance values ​​in the first capacitance table with the smallest capacitance difference from the first mutual capacitance value. The driving device may respectively calculate the absolute values ​​of the differences between the two mutual capacitance values ​​and the first mutual capacitance value to obtain two absolute values, and may determine that the mutual capacitance value corresponding to the smaller value of the two absolute values ​​is the target mutual capacitance value, and then may determine that the folding angle corresponding to the target mutual capacitance value in the first capacitance table is the folding angle of the flexible touch display. The driving device may also determine the folding angles corresponding to the two mutual capacitance values ​​in the first capacitance table to obtain two folding angles, and may determine the folding angle of the flexible touch display based on the two folding angles.

[0097] The driving device can determine the folding angle corresponding to the first mutual capacitance value using linear interpolation according to the two mutual capacitance values ​​and the two folding angles to obtain the folding angle of the flexible touch display screen. The driving device can also calculate the average value of the two folding angles to obtain the folding angle of the flexible touch display screen.

[0098] When the current folding angle range is outside the measurement angle range corresponding to the first target electrode, the driving device can select a mutual capacitance value from multiple mutual capacitance values ​​according to the current folding angle range to obtain a second mutual capacitance value. The second mutual capacitance value is a mutual capacitance value other than the first mutual capacitance value among the multiple mutual capacitance values.

[0099] When the current folding angle range is outside the measurement angle range corresponding to the first target electrode, the driving device selects a mutual capacitance value from multiple mutual capacitance values ​​according to the current folding angle range to obtain a second mutual capacitance value. This can avoid the situation where the folding angle is outside the measurement angle range corresponding to the first target electrode and the folding angle is determined using the first capacitance table, thereby ensuring the accuracy of the determined folding angle.

[0100] The driving device can determine the folding angle of the flexible touch display screen according to the second capacitance table and the second mutual capacitance value. The second capacitance table is a corresponding relationship table between the mutual capacitance value corresponding to the second target electrode and the folding angle.

[0101] When the angles in the current folding angle range are all greater than the angles in the measuring angle range corresponding to the first target electrode, the distance between the second target electrode and the folding line is smaller than the distance between the first target electrode and the folding line.

[0102] When the angles in the current folding angle range are all smaller than the angles in the measuring angle range corresponding to the first target electrode, the distance between the second target electrode and the folding line is greater than the distance between the first target electrode and the folding line.

[0103] After the driving device obtains the second mutual capacitance value, it can obtain the corresponding second capacitance table, and then determine whether the second capacitance table includes the second mutual capacitance value. When the second capacitance table includes the second mutual capacitance value, it can be determined that the folding angle of the flexible touch display screen is the folding angle corresponding to the second mutual capacitance value in the second capacitance table, thereby improving the determination rate of the folding angle.

[0104] In the case where the second capacitance table includes the second mutual capacitance value, the driving device may also determine the folding angle corresponding to the second mutual capacitance value in the second capacitance table, and then determine whether the folding angle is within the measurement angle range corresponding to the second target electrode. In the case where the folding angle is within the measurement angle range corresponding to the second target electrode, the folding angle of the flexible touch display screen may be determined to be the folding angle, which may improve the determination rate and accuracy of the folding angle. In the case where the folding angle is outside the measurement angle range corresponding to the second target electrode, the driving device may select a mutual capacitance value from a plurality of mutual capacitance values ​​according to the folding angle to obtain a third mutual capacitance value. The third mutual capacitance value is a mutual capacitance value other than the first mutual capacitance value and the second mutual capacitance value among the plurality of mutual capacitance values.

[0105] In the case where the second capacitance table does not include the second mutual capacitance value, the driving device can determine the current folding angle range again based on the second mutual capacitance value and the second capacitance table, and then determine whether the current folding angle range is within the measurement angle range corresponding to the second target electrode. In the case where the current folding angle range is within the measurement angle range corresponding to the second target electrode, the folding angle of the flexible touch display can be determined based on the second mutual capacitance value and the second capacitance table. In the case where the current folding angle range is outside the measurement angle range corresponding to the second target electrode, the driving device can select a mutual capacitance value from multiple mutual capacitance values ​​according to the current folding angle range to obtain a third mutual capacitance value. Determining the folding angle of the flexible touch display according to the second mutual capacitance value and the second capacitance table is the same as determining the folding angle of the flexible touch display according to the first mutual capacitance value and the first capacitance table. For detailed description, refer to the above related description.

[0106] It should be understood that the current folding angle range here is different from the current folding angle range determined according to the first mutual capacitance value, and the current folding angle range here is smaller than the current folding angle range determined according to the first mutual capacitance value.

[0107] The driving device can determine the folding angle of the flexible touch display screen according to the third mutual capacitance value. Determining the folding angle of the flexible touch display screen according to the third mutual capacitance value is similar to determining the folding angle of the flexible touch display screen according to the second mutual capacitance value. For detailed description, please refer to the above related description.

[0108] It can be seen that the folding angle of the flexible touch display screen can be directly determined according to the first mutual capacitance value, the folding angle of the flexible touch display screen can be determined according to the first mutual capacitance value and the second mutual capacitance value, or the folding angle of the flexible touch display screen can be determined according to the first mutual capacitance value, the second mutual capacitance value and the third mutual capacitance value. It should be understood that in the process of determining the folding angle of the flexible touch display screen, the number of mutual capacitance values ​​used is not limited.

[0109] Exemplarily, assuming that the first electrodes in the lower half of the screen that are closer to the folding line are Rx1, Rx2, Rx3, Rx4, Rx5, and Rx6, the measurement angle ranges corresponding to the six first electrodes are 135°~180°, 90°~135°, 75°~90°, 60°~75°, 30°~60°, and 0°~30°, respectively. Assuming that the folding angle is between 160°~180°, the first mutual capacitance value is the mutual capacitance value corresponding to Rx3, and it can be determined that the current folding angle range is greater than 90° according to the mutual capacitance value and the capacitance table corresponding to Rx3, and the mutual capacitance value corresponding to Rx2 can be selected from the six mutual capacitance values ​​according to the angle range as the second mutual capacitance value, and it can be determined that the current folding angle range is greater than 135° according to the mutual capacitance value and the capacitance table corresponding to Rx2, and the mutual capacitance value corresponding to Rx1 can be selected from the six mutual capacitance values ​​according to the angle range, and the folding angle of the flexible touch display can be determined according to the mutual capacitance value and the capacitance table corresponding to Rx1.

[0110] In some embodiments, the driving device can determine multiple folding angles according to multiple mutual capacitance values, and can determine the average value of the multiple folding angles as the folding angle of the flexible touch display screen. The number of the multiple folding angles is less than or equal to the number of the multiple mutual capacitance values.

[0111] The driving device can determine a plurality of folding angles according to a plurality of mutual capacitance values ​​and a capacitance table corresponding to the plurality of mutual capacitance values.

[0112] The driving device can obtain a capacitance table corresponding to the fourth mutual capacitance value to obtain the third capacitance table, and then determine whether the fourth mutual capacitance value is within the mutual capacitance value range included in the third capacitance table. When the fourth mutual capacitance value is within the mutual capacitance value range included in the third capacitance table, that is, the fourth mutual capacitance value is greater than or equal to the minimum mutual capacitance value in the third capacitance table, and less than or equal to the maximum mutual capacitance value in the third capacitance table, the driving device can determine a folding angle according to the third capacitance table and the fourth mutual capacitance value to obtain the folding angle corresponding to the fourth mutual capacitance value. When the fourth mutual capacitance value is outside the mutual capacitance value range included in the third capacitance table, it indicates that the current folding angle exceeds the angle range that can be measured by the first electrode corresponding to the third mutual capacitance value. The fourth mutual capacitance value is any mutual capacitance value among multiple mutual capacitance values.

[0113] Exemplarily, assuming that the lower half of the screen includes 6 first electrodes, and the distances from the folding line are Rx1, Rx2, Rx3, Rx4, Rx5 and Rx6 from near to far, the measurement angle range corresponding to Rx1 and Rx2 is 0°~180°, the measurement angle range corresponding to Rx3 and Rx4 is 0°~90°, and the measurement angle range corresponding to Rx5 and Rx6 is 0°~60°. Assuming that the current folding angle is between 60° and 90°, 6 mutual capacitance values ​​are detected and obtained. The first folding angle can be determined according to the mutual capacitance value and the capacitance table corresponding to Rx1, the second folding angle can be determined according to the mutual capacitance value and the capacitance table corresponding to Rx2, the third folding angle can be determined according to the mutual capacitance value and the capacitance table corresponding to Rx3, and the fourth folding angle can be determined according to the mutual capacitance value and the capacitance table corresponding to Rx4. The measurement angle range corresponding to Rx3 and Rx4 cannot measure the folding angle between 60° and 90°. The average values ​​of the first folding angle, the second folding angle, the third folding angle and the fourth folding angle can be calculated to obtain the folding angle of the flexible touch display.

[0114] In some embodiments, the driving device can determine the current folding angle range based on the mutual capacitance value corresponding to the auxiliary detection electrode among multiple mutual capacitance values, and can determine the folding angle of the flexible touch display screen based on the current folding angle range and the mutual capacitance value corresponding to the main detection electrode among multiple mutual capacitance values.

[0115] When the flexible touch display screen is in the folding process, that is, the folding angle is greater than 0° and less than 180°, the distances between different first electrodes in the second half screen and the driving electrodes in the first half screen are different. Therefore, when the folding angle is the same, the mutual capacitance values ​​corresponding to different first electrodes in the second half screen are different. The closer the distance between the first electrode in the second half screen and the folding line (or folding axis), the larger the corresponding mutual capacitance value, and the more sensitive the mutual capacitance value is to the change of the folding angle. The farther the distance between the first electrode in the second half screen and the folding line, that is, the first electrode in the second half screen far away from the folding line, the smaller the corresponding mutual capacitance value, and the less sensitive the mutual capacitance value is to the change of the folding angle.

[0116] Therefore, the first electrode in the second half screen whose distance to the folding line is less than a threshold value can be determined as the main detection electrode, and the first electrode in the second half screen whose distance to the folding line is greater than or equal to the threshold value can be determined as the auxiliary detection electrode.

[0117] Exemplarily, assuming that the lower half screen includes 6 first electrodes, the distances from the folding line from near to far are Rx1, Rx2, Rx3, Rx4, Rx5 and Rx6, Rx1 and Rx2 can detect a folding angle range of 0°~180°, Rx3 and Rx4 can detect a folding angle range of 0°~90°, and Rx5 and Rx6 can detect a folding angle range of 0°~60°. Rx1 and Rx2 are main detection electrodes, and Rx3, Rx4, Rx5 and Rx6 are auxiliary detection electrodes. The driving device can first determine whether the mutual capacitance value corresponding to Rx3 is greater than the maximum value in the corresponding capacitance table or less than the maximum value in the corresponding capacitance table, and whether the mutual capacitance value corresponding to Rx4 is greater than the maximum value in the corresponding capacitance table or less than the maximum value in the corresponding capacitance table. When the mutual capacitance value corresponding to Rx3 is less than the minimum value in the corresponding capacitance table, and the mutual capacitance value corresponding to Rx4 is less than the minimum value in the corresponding capacitance table, it indicates that the current folding angle is greater than 90°, and the folding angle of the flexible touch display can be determined according to the mutual capacitance values ​​and the capacitance table corresponding to Rx1 and Rx2. When the mutual capacitance value corresponding to Rx3 is greater than the maximum value in the corresponding capacitance table, and the mutual capacitance value corresponding to Rx4 is greater than the maximum value in the corresponding capacitance table, it indicates that the current folding angle is less than 90°. It can be determined whether the mutual capacitance value corresponding to Rx5 is greater than the maximum value in the corresponding capacitance table or less than the maximum value in the corresponding capacitance table, and whether the mutual capacitance value corresponding to Rx6 is greater than the maximum value in the corresponding capacitance table or less than the maximum value in the corresponding capacitance table. When the mutual capacitance value corresponding to Rx5 is less than the minimum value in the corresponding capacitance table, and the mutual capacitance value corresponding to Rx6 is less than the minimum value in the corresponding capacitance table, it indicates that the current folding angle is greater than 60° and less than 90°. The folding angle of the flexible touch display can be determined according to the mutual capacitance value and capacitance table corresponding to Rx1 and Rx2. When the mutual capacitance value corresponding to Rx5 is greater than the maximum value in the corresponding capacitance table, and the mutual capacitance value corresponding to Rx6 is greater than the maximum value in the corresponding capacitance table, it indicates that the current folding angle is less than 60°. The folding angle of the flexible touch display can be determined according to the mutual capacitance value and capacitance table corresponding to Rx1 and Rx2.

[0118] It can be seen that the approximate range of the folding angle can be quickly determined according to the mutual capacitance value corresponding to the auxiliary detection electrode, and then the folding angle of the flexible touch display can be accurately determined according to the mutual capacitance value corresponding to the main detection electrode, which can improve the accuracy and flexibility of the determined folding angle.

[0119] exist Figure 5In the folding angle determination method shown, the mutual capacitance value between the electrodes in the two half-screens that can be folded can be detected first, and then the folding angle of the flexible touch display screen can be determined according to the mutual capacitance value. Therefore, the folding angle can be accurately determined by detecting the mutual capacitance value between the electrodes in the two half-screens that can be folded. In addition, the folding angle can be detected by the existing electrodes in the flexible touch display screen of the mobile terminal, without the need for additional devices, components or devices, which can reduce the weight and cost of the mobile terminal. Further, since all the electrodes in a half-screen that can be folded are used as a driving electrode, the area of ​​the driving electrode can be increased, the accuracy and sensitivity of the detected mutual capacitance value can be improved, and thus the accuracy and flexibility of the determined folding angle can be improved. Furthermore, since a second DC voltage signal is provided to each second electrode, the noise interference generated by the display of the lower display screen can be shielded, and the accuracy of the determined folding angle can be improved.

[0120] It should be understood that the same, similar or corresponding contents in different embodiments may be referenced to each other.

[0121] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0122] Based on the same inventive concept, the embodiment of the present application also provides a folding angle determination device for implementing the folding angle determination method involved above. The implementation solution provided by the folding angle determination device to solve the problem is similar to the implementation solution recorded in the above folding angle determination method, so the specific limitations in one or more folding angle determination device embodiments provided below can refer to the limitations of the folding angle determination method above, and will not be repeated here.

[0123] Figure 6 : is a structural diagram of a folding angle determination device provided in an embodiment of the present application. The folding angle determination device can be applied to a driving device (i.e., a driving chip) in a mobile terminal. The folding angle determination device may include:

[0124] A first determining unit 601, configured to determine all first electrodes in the first half screen as one driving electrode;

[0125] A detection unit 602 is used to detect the mutual capacitance value between each first electrode and the driving electrode in the second half screen to obtain a plurality of mutual capacitance values, wherein the first half screen and the second half screen are symmetrical with respect to the folding line;

[0126] The second determining unit 603 is configured to determine a folding angle of the flexible touch display screen according to a plurality of mutual capacitance values.

[0127] In some embodiments, the second determining unit 603 is specifically configured to:

[0128] determining a current folding angle range according to a first mutual capacitance value, where the first mutual capacitance value corresponds to a mutual capacitance value of a first target electrode, and the first target electrode is a first electrode located in the middle of the second half screen;

[0129] Selecting a mutual capacitance value from a plurality of mutual capacitance values ​​according to the current folding angle range to obtain a second mutual capacitance value, wherein the second mutual capacitance value is a mutual capacitance value corresponding to a second target electrode, and the second target electrode is a first electrode in the second half screen that is different from the first target electrode;

[0130] The folding angle of the flexible touch display screen is determined according to the second mutual capacitance value.

[0131] In some embodiments, the second determination unit 603 is further used to determine that the folding angle of the flexible touch display screen is the folding angle corresponding to the first mutual capacitance value in the first capacitance table when the first capacitance table includes the first mutual capacitance value, and the first capacitance table is a correspondence table between the mutual capacitance value corresponding to the first target electrode and the folding angle.

[0132] In some embodiments, the second determining unit 603 determines the current folding angle range according to the first mutual capacitance value, including:

[0133] When the first capacitance table does not include the first mutual capacitance value, the current folding angle range is determined according to the first mutual capacitance value and the first capacitance table.

[0134] In some embodiments, the second determining unit 603 selects a mutual capacitance value from a plurality of mutual capacitance values ​​according to the current folding angle range, and obtains the second mutual capacitance value including:

[0135] When the current folding angle range is outside the measurement angle range corresponding to the first target electrode, a mutual capacitance value is selected from a plurality of mutual capacitance values ​​according to the current folding angle range to obtain a second mutual capacitance value.

[0136] In some embodiments, the second determining unit 603 determines the folding angle of the flexible touch display screen according to the multiple mutual capacitance values ​​further includes:

[0137] When the current folding angle range is within the measurement angle range corresponding to the first target electrode, the folding angle of the flexible touch display screen is determined according to the first mutual capacitance value and the first capacitance table.

[0138] In some embodiments, the second determining unit 603 determines the folding angle of the flexible touch display screen according to the second mutual capacitance value, including:

[0139] The folding angle of the flexible touch display screen is determined according to the second capacitance table and the second mutual capacitance value, wherein the second capacitance table is a corresponding relationship table between the mutual capacitance value corresponding to the second target electrode and the folding angle.

[0140] In some embodiments, when the angles of the current folding angle range are all greater than the angles of the measuring angle range corresponding to the first target electrode, the distance between the second target electrode and the folding line is less than the distance between the first target electrode and the folding line;

[0141] When the angles in the current folding angle range are all smaller than the angles in the measuring angle range corresponding to the first target electrode, the distance between the second target electrode and the folding line is greater than the distance between the first target electrode and the folding line.

[0142] In some embodiments, the first determination unit 601 is specifically configured to synchronously provide a first DC voltage signal to all first electrodes in the first half screen, so that all first electrodes in the first half screen serve as one driving electrode.

[0143] In some embodiments, the flexible touch display screen further includes a plurality of second electrodes spaced apart along a second direction, the first direction is perpendicular to the second direction, and the first electrodes are insulated from the second electrodes. The folding angle determination device may further include:

[0144] A providing unit is used to provide a second DC voltage signal to each second electrode.

[0145] Each unit in the above-mentioned folding angle determination device can be implemented in whole or in part by software, hardware or a combination thereof. Each of the above-mentioned units can be embedded in or independent of the driving device in the mobile terminal in the form of hardware, or can be stored in the driving device in the mobile terminal in the form of software, so that the driving device can call and execute the corresponding operations of each of the above-mentioned units.

[0146] Figure 7It is a structural diagram of another mobile terminal provided by an embodiment of the present application. The mobile terminal may include a processor, a memory, an input / output interface (Input / Output, referred to as I / O), a communication interface, a display device and an input device. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display device and the input device are connected to the system bus through the input / output interface. Among them, the processor of the mobile terminal is used to provide computing and control capabilities. The memory of the mobile terminal includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the mobile terminal is used to exchange information between the processor and an external device. The communication interface of the mobile terminal is used to communicate with an external terminal or server through a network connection. When the computer program is executed by the processor, a method for determining a folding angle is implemented. The display device of the mobile terminal is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen is a display screen in a flexible touch display screen, and the input device of the mobile terminal can be a touch screen in the flexible touch display screen, or a mechanical key or touch pad set on the mobile terminal shell, or an external keyboard, touch pad or mouse.

[0147] Those skilled in the art will understand that Figure 7 The structure shown in the figure is merely a block diagram of a partial structure related to the scheme of the present application, and does not constitute a limitation on the mobile terminal to which the scheme of the present application is applied. The specific mobile terminal may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0148] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above-mentioned folding angle determination method are implemented.

[0149] It should be noted that the information involved in this application is information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0150] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0151] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0152] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for determining a folding angle, characterized in that: A driving device applied to a mobile terminal, wherein the mobile terminal further comprises a flexible touch display screen, wherein the flexible touch display screen comprises a plurality of first electrodes spaced apart along a first direction, and wherein the flexible touch display screen has a folding line along the first direction, wherein the method comprises: Determine all first electrodes in the first half screen as a driving electrode; detecting mutual capacitance values ​​between each of the first electrodes and the driving electrodes in the second half screen to obtain a plurality of mutual capacitance values, wherein the first half screen and the second half screen are symmetrical with respect to the folding line; A folding angle of the flexible touch display screen is determined according to the multiple mutual capacitance values.

2. The method according to claim 1, characterized in that The step of determining the folding angle of the flexible touch display screen according to the multiple mutual capacitance values ​​comprises: determining a current folding angle range according to a first mutual capacitance value, where the first mutual capacitance value is a mutual capacitance value corresponding to a first target electrode, and the first target electrode is the first electrode located in the middle of the second half screen; Selecting a mutual capacitance value from the multiple mutual capacitance values ​​according to the current folding angle range to obtain a second mutual capacitance value, wherein the second mutual capacitance value corresponds to a mutual capacitance value of a second target electrode, and the second target electrode is the first electrode in the second half screen that is different from the first target electrode; A folding angle of the flexible touch display screen is determined according to the second mutual capacitance value.

3. The method according to claim 2, characterized in that The method further comprises: When the first capacitance table includes the first mutual capacitance value, the folding angle of the flexible touch display screen is determined to be the folding angle corresponding to the first mutual capacitance value in the first capacitance table, and the first capacitance table is a correspondence table between the mutual capacitance value corresponding to the first target electrode and the folding angle.

4. The method according to claim 3, characterized in that: Determining the current folding angle range according to the first mutual capacitance value includes: When the first capacitance table does not include the first mutual capacitance value, the current folding angle range is determined according to the first mutual capacitance value and the first capacitance table.

5. The method according to claim 4, characterized in that The step of selecting a mutual capacitance value from the plurality of mutual capacitance values ​​according to the current folding angle range to obtain a second mutual capacitance value comprises: In a case where the current folding angle range is outside the measurement angle range corresponding to the first target electrode, a mutual capacitance value is selected from the multiple mutual capacitance values ​​according to the current folding angle range to obtain a second mutual capacitance value.

6. The method according to claim 5, characterized in that The step of determining the folding angle of the flexible touch display screen according to the multiple mutual capacitance values ​​further includes: When the current folding angle range is within the measurement angle range corresponding to the first target electrode, the folding angle of the flexible touch display screen is determined according to the first mutual capacitance value and the first capacitance table.

7. The method according to claim 2, characterized in that The step of determining the folding angle of the flexible touch display screen according to the second mutual capacitance value comprises: The folding angle of the flexible touch display screen is determined according to a second capacitance table and the second mutual capacitance value, wherein the second capacitance table is a correspondence table between the mutual capacitance value corresponding to the second target electrode and the folding angle.

8. The method according to claim 2, characterized in that: When the angles in the current folding angle range are all greater than the angles in the measuring angle range corresponding to the first target electrode, the distance between the second target electrode and the folding line is less than the distance between the first target electrode and the folding line; When the angles in the current folding angle range are all smaller than the angles in the measurement angle range corresponding to the first target electrode, the distance between the second target electrode and the folding line is greater than the distance between the first target electrode and the folding line.

9. The method according to any one of claims 1 to 8, characterized in that: The step of determining all first electrodes in the first half screen as one driving electrode comprises: A first DC voltage signal is synchronously provided to all first electrodes in the first half screen, so that all first electrodes in the first half screen serve as one driving electrode.

10. The method according to any one of claims 1 to 8, characterized in that: The flexible touch display screen further includes a plurality of second electrodes spaced apart along a second direction, the first direction is perpendicular to the second direction, and the first electrodes are insulated from the second electrodes. The method further includes: A second DC voltage signal is provided to each of the second electrodes.

11. A folding angle determination device, characterized in that: A driving device applied to a mobile terminal, the mobile terminal further comprising a flexible touch display screen, the flexible touch display screen comprising a plurality of first electrodes spaced apart along a first direction, the flexible touch display screen having a folding line along the first direction, the device comprising: A first determining unit, used for determining all first electrodes in the first half screen as one driving electrode; a detection unit, used for detecting mutual capacitance values ​​between each of the first electrodes and the driving electrodes in the second half screen to obtain a plurality of mutual capacitance values, wherein the first half screen and the second half screen are symmetrical with respect to the folding line; The second determining unit is configured to determine a folding angle of the flexible touch display screen according to the multiple mutual capacitance values.

12. A mobile terminal, characterized in that: The flexible touch display screen comprises a processor, a driving device and a flexible touch display screen, wherein the driving device is electrically connected to the processor and the flexible touch display screen respectively, the flexible touch display screen comprises a plurality of first electrodes arranged at intervals along a first direction, and the flexible touch display screen has a folding line along the first direction; The processor is used to generate a detection instruction for detecting a folding angle of the flexible touch display screen; The driving device is used to determine all the first electrodes in the first half screen as a driving electrode according to the detection instruction, detect the mutual capacitance value between each of the first electrodes and the driving electrode in the second half screen, obtain a plurality of mutual capacitance values, and determine the folding angle of the flexible touch display screen according to the plurality of mutual capacitance values, and the first half screen and the second half screen are symmetrical relative to the folding line.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 10 are implemented.

14. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 10 are implemented.

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