Control method, storage medium and electronic equipment

Abstract

The invention relates to the technical field of outer folding screens, and discloses a control method, a storage medium and electronic equipment, and the method comprises the steps: when the electronic equipment is in a main screen display state, controlling an auxiliary screen light-emitting control signal drive circuit (emit gate driver on array, EOA) and an auxiliary screen substrate line drive scanning circuit (gate driver on array, GOA) to be in a periodic one-on and one-off state; when the auxiliary screen EOA is turned on, the auxiliary screen GOA is turned off, that is, a display signal of the auxiliary screen EOA cannot act on the driving module due to the disconnection of a path of the auxiliary screen GOA; when the auxiliary screen EOA is closed, the auxiliary screen GOA is opened, that is, the driving module cannot acquire the display signal. Through the method, the problem of display difference between the main screen and the auxiliary screen due to the fact that the auxiliary screen GOA and the auxiliary screen EOA and the main screen GOA and the main screen EOA are in different working states for a long time can be avoided, and the problem that the auxiliary screen flashes in a white screen in a reverse color mode can also be avoided.

Description

Technical Field

[0001] The present application relates to the field of external folding screen technology, and in particular to a control method, storage medium and electronic device. Background Art

[0002] The external folding screen usually includes a main screen and a sub-screen. When an electronic device equipped with the external folding screen is in the main screen display state, that is, the main screen displays an image, but the sub-screen does not display an image, the electronic device usually turns off the sub-screen substrate row drive scanning circuit (gate driver on array, GOA) and the sub-screen light emitting control signal driving circuit (emitgate driver on array, EOA) used to control the sub-screen display, so as to achieve the effect of reducing the power consumption of the electronic device.

[0003] However, if the electronic device is in the main screen display state for a long time, the secondary screen GOA and secondary screen EOA and the main screen GOA and main screen EOA used to control the main screen display may be in different working states for a long time, resulting in the main screen and the secondary screen may have display differences in color, brightness, etc. when the electronic device changes from the main screen display state to the full-screen display state, and the visual effect is poor. Summary of the invention

[0004] Embodiments of the present application provide a control method, a storage medium, and an electronic device.

[0005] In a first aspect, the present application provides a control method, which is applied to an electronic device, wherein the electronic device includes an external folding screen, the external folding screen includes a first screen and a second screen, the first screen includes a first control unit for controlling the first screen to display an image, the second screen includes a second control unit for controlling the second screen to display an image, the first control unit includes a first signal module, a second signal module and a driving module, the first signal module is used to control the on and off of a first path for communication between the second signal module and the driving module, the second signal module sends a display signal to the driving module through the first path, the driving module is used to receive the display signal and control the first screen to display an image based on the display signal, the method includes: corresponding to the second screen displaying an image, the first screen does not display an image for a first period of time, so that the first The first signal module and the second signal module in the control unit operate in an alternating working state, wherein the first time period includes N first time intervals and at least N-1 second time intervals, and the first time intervals and the second time intervals are continuously spaced from each other; wherein, the first signal module and the second signal module in the first control unit operate in an alternating working state, including: in the first time interval, the first control unit instructs the first signal module to send a display signal to the driving module, and instructs the second signal module to control the first path to be disconnected; and in the second time interval immediately following the first time interval, the first control unit instructs the first signal module to stop sending the display signal to the driving module, and instructs the second signal module to control the first path to be connected.

[0006] In the embodiment of the present application, when the electronic device is in the main screen display state, the secondary screen EOA (second signal module) and the secondary screen GOA (first signal module) are controlled by the secondary screen control unit to be in a periodic on-off state, which not only ensures that the secondary screen GOA and the secondary screen EOA are in a periodic working state, but also ensures that the secondary screen has no substantial image display during the periodic working state of the secondary screen GOA and the secondary screen EOA. Therefore, the control method proposed above can not only avoid the problem of display differences between the main screen and the secondary screen due to the secondary screen GOA and the secondary screen EOA being in different working states for a long time from the main screen GOA and the main screen EOA, but also avoid the problem of the secondary screen flashing white when the electronic device is in the inverted color mode.

[0007] In a possible implementation of the first aspect above, the method further includes: in response to the first control unit instructing the first signal module to send a display signal to the driving module, and instructing the second signal module to control the first path to be disconnected, the first control unit executes a first delay process to keep the first signal module sending the display signal to the driving module, and the second signal module controlling the first path to be disconnected for a time corresponding to the first time interval; or, in response to the first control unit instructing the first signal module to stop sending the display signal to the driving module, and instructing the second signal module to control the first path to be turned on, the first control unit executes a second delay process to keep the first signal module stopping sending the display signal to the driving module, and instructing the second signal module to control the first path to be turned on for a time corresponding to the second time interval.

[0008] In a possible implementation of the first aspect, the first time period corresponding to the second screen displaying an image and the first screen not displaying an image, so that the first signal module and the second signal module in the first control unit operate in an alternating working state, includes: the first control unit instructs the first signal module and the second signal module to be in the first state; runs the first first delay process to keep the first state for a time corresponding to the first time interval; in response to the end of the first first delay process, runs a loop process, wherein the loop process includes: at the start time of the i-th second time interval, in response to determining that the first signal module and the second signal module are in the first state, the first control unit instructs the first signal module and the second signal module to change from the first state to the second state, and runs the i-th second delay process to keep the second state for a time corresponding to the second time interval; at the start time of the i+1-th first time interval, in response to determining that the first signal module and the second signal module are in the second state, the first control unit instructs the first signal module and the second signal module to change from the second state to the first state, and runs the i+1-th first delay process to keep the first state for a time corresponding to the first time interval; wherein i is an integer greater than or equal to 1.

[0009] In a possible implementation of the first aspect above, the method further includes: determining that the electronic device enters a non-main screen display state and exiting the loop process; in exiting the loop process, at the moment the loop process exits, determining that the first signal module and the second signal module are in the first state, and the first control unit instructs the second signal module to control the first path to be conductive; or, at the moment the loop process exits, determining that the first signal module and the second signal module are in the second state, and the first control unit instructs the first signal module to send a display signal to the driving module.

[0010] In a possible implementation of the first aspect, the method further includes: the first time interval is greater than the second time interval.

[0011] In a possible implementation of the first aspect, the electronic device is in an inverted color mode.

[0012] In a possible implementation of the first aspect, the first signal module is a light-emitting control signal driving circuit (EOA), and the second signal module is an array substrate row driving scanning circuit (GOA).

[0013] In a possible implementation of the first aspect above, a first switch is provided on the first path, and the second signal module is used to control the on and off of the first switch; one end of the first switch is connected to the first signal module, and the other end is connected to the first capacitor in the driving module and the second switch, and the first capacitor or the first signal module is used to control the on and off of the second switch; corresponding to the second switch being in the on state, the first screen can display an image.

[0014] In a second aspect, an embodiment of the present application provides a readable storage medium having instructions stored thereon, which, when executed on an electronic device, enables the electronic device to implement any one of the control methods provided by the first aspect and various possible implementations of the first aspect.

[0015] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a memory for storing instructions executed by one or more processors of the electronic device; and a processor, which is one of the processors of the electronic device, for executing the instructions stored in the memory to implement any one of the control methods provided by the first aspect and various possible implementations of the first aspect.

[0016] In a fourth aspect, an embodiment of the present application provides a program product, which includes instructions, and when the instructions are executed by an electronic device, the electronic device can implement any control method provided by the first aspect and various possible implementations of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 According to some embodiments of the present application, a schematic structural diagram of an external folding screen mobile phone 10 is shown;

[0018] Figure 2 According to some embodiments of the present application, an example schematic diagram of an interface of a mobile phone 10 is shown;

[0019] Figure 3 According to some embodiments of the present application, an example schematic diagram of a time interval is shown;

[0020] Figure 4 According to some embodiments of the present application, an example schematic diagram of a control circuit is shown;

[0021] Figure 5 According to some embodiments of the present application, a flow chart of a control method is shown;

[0022] Figure 6 According to some embodiments of the present application, a schematic structural diagram of a mobile phone 10 is shown. DETAILED DESCRIPTION

[0023] The illustrative embodiments of the present application include, but are not limited to, a control method, a storage medium, and an electronic device.

[0024] The following is combined with Figures 1 to 6 The technical solution of this application is introduced.

[0025] Figure 1 According to some embodiments of the present application, a schematic diagram of the structure of an external folding screen mobile phone (hereinafter referred to as mobile phone) 10 is shown. Figure 1 As shown, the outer folding screen of the mobile phone 10 is divided into a main screen 11 (an example of the second screen) and a sub-screen 12 (an example of the first screen). When the mobile phone 10 is in the unfolded state, the main screen 11 and the sub-screen 12 display images at the same time, that is, the mobile phone 10 is in a full-screen display state. When the mobile phone 10 is in the folded state, the sub-screen 12 is folded to a position that the user cannot see in normal use, so only the main screen 11 displays images, while the sub-screen 12 does not display images, and the mobile phone 10 is in the main screen display state.

[0026] In some embodiments, the main screen 11 and the sub-screen 12 are respectively configured with a main screen control unit (an instance of a second control unit) and a sub-screen control unit (an instance of a first control unit) for controlling the corresponding screen area to display an image. For example, corresponding to the sub-screen 12, the sub-screen control unit may include a sub-screen GOA (an instance of a second signal module) for controlling the display of each pixel point (such as an organic light-emitting diode (OLED)) in the sub-screen 12, and a sub-screen EOA (an instance of a first signal module) for controlling the luminous brightness of each pixel point in the sub-screen 12; the display of multiple pixels in the sub-screen 12 can be controlled by the sub-screen GOA and the sub-screen EOA to display an image on the sub-screen 12. Correspondingly, corresponding to the main screen 11, the main screen control unit also includes a main screen GOA and a main screen EOA for controlling the display and luminous brightness of each pixel point in the main screen 11; the display of multiple pixels in the main screen 11 can be controlled by the main screen GOA and the main screen EOA to display an image on the main screen 11.

[0027] In some embodiments, when the mobile phone 10 is in the main screen display state and only the main screen 11 displays an image, the mobile phone 10 can control the sub-screen GOA and the sub-screen EOA to be turned off through the sub-screen control unit, so that the sub-screen 12 does not display an image, that is, the sub-screen 12 is displayed in a black screen to achieve a low power consumption effect. It can be understood that when the main screen 11 displays an image and the sub-screen 12 does not display an image, the main screen GOA and the main screen EOA are in a working state, so as to control the display of multiple pixels in the main screen 11 through the main screen GOA and the main screen EOA to display an image on the main screen 11. Correspondingly, since the sub-screen 12 does not display an image, that is, in the sub-screen control unit, the sub-screen GOA and the sub-screen EOA are in a non-working state.

[0028] It can be understood that when the mobile phone 10 is in the main screen display state for a long time, the main screen GOA and the main screen EOA in the main screen control unit and the secondary screen GOA and the secondary screen EOA in the secondary screen control unit may be in different working states for a long time. In this way, after the mobile phone 10 is in the main screen display state for a long time, if the mobile phone 10 changes from the main screen display state to the full screen display state, the main screen GOA and the main screen EOA and the secondary screen GOA and the secondary screen EOA may be in different working states for a long time, resulting in problems such as different aging degrees of the main screen GOA and the main screen EOA and the secondary screen GOA and the secondary screen EOA. In this way, when the mobile phone 10 changes from the main screen display state to the full screen display state, the secondary screen GOA and the secondary screen EOA are controlled by the secondary screen control unit to make the secondary screen 12 display an image, the brightness and color of the image displayed by the secondary screen 12 and the main screen 11 may produce display differences, resulting in, for example, a display effect of a sense of fragmentation of the screen, affecting the user's visual experience.

[0029] In some embodiments, when the mobile phone 10 is in the main screen display state, the mobile phone 10 can turn on the sub-screen GOA and the sub-screen EOA regularly through the sub-screen control unit, and control the sub-screen 12 to display a black image when the sub-screen GOA and the sub-screen EOA are turned on, so as to visually make the sub-screen 12 always display in a black screen during the process of the mobile phone 10 being in the main screen display state. For example, when the mobile phone 10 is in the main screen display state, the mobile phone 10 can control the sub-screen GOA and the sub-screen EOA to be turned on for 5 seconds through the sub-screen control unit every 30 seconds, and control the sub-screen to display a black image within 5 seconds of turning on the sub-screen GOA and the sub-screen EOA. In this way, when the mobile phone 10 is in the main screen display state, the mobile phone 10 turns on the sub-screen GOA and the sub-screen EOA regularly through the sub-screen control unit, which can avoid the sub-screen GOA and the sub-screen EOA from being in different working states with the main screen GOA and the main screen EOA for a long time, thereby avoiding the display difference between the main screen 11 and the sub-screen 12 when the main screen display state is subsequently changed to the full screen display state.

[0030] In some embodiments, when the mobile phone 10 is in the main screen display state, and the above-mentioned method of timing the opening of the secondary screen GOA and the secondary screen EOA is used to avoid the secondary screen GOA and the secondary screen EOA being in different working states from the main screen GOA and the main screen EOA for a long time, when the user of the mobile phone 10 turns on the color inversion function, for example Figure 2 The color inversion function in the barrier-free function of the mobile phone 10 (folded state) shown, the mobile phone 10 is in the inverted color mode. In the inverted color mode, the originally bright pixels of the mobile phone 10 become darker, and the originally dark pixels become brighter. In this way, when the mobile phone 10 turns on the sub-screen GOA and the sub-screen EOA through the sub-screen control unit to control the sub-screen 12 to display a black image, the black image displayed on the sub-screen 12 may become a white image due to the color inversion function, resulting in the sub-screen 12 flashing a white image periodically when the mobile phone 10 is in the main screen display state. It can be understood that when the mobile phone 10 is in the folded state and in the main screen display state, if the sub-screen 12 keeps flashing a white screen (white image), it will cause troubles to the user during use and reduce the user experience.

[0031] To this end, the present application proposes a control method, when the mobile phone is in the main screen display state, the sub-screen EOA and the sub-screen GOA are controlled by the sub-screen control unit to be in a periodic on-off state, that is, when the sub-screen EOA is turned on, the sub-screen GOA is turned off, so that when the mobile phone sends a display signal through the sub-screen EOA, the display signal cannot act on the corresponding drive module because the transmission path controlled by the sub-screen GOA is disconnected, that is, the sub-screen display image cannot be controlled; when the sub-screen EOA is turned off, the sub-screen GOA is turned on, so that when the mobile phone controls the sub-screen display image through the drive module, it cannot obtain the correct display signal, that is, it cannot control the sub-screen display image. In this way, through the control method proposed above, not only is it ensured that the sub-screen GOA and the sub-screen EOA are in a working state periodically, but it can also be ensured that during the period when the sub-screen GOA and the sub-screen EOA are in a working state, there is no substantial image display on the sub-screen. Therefore, through the control method proposed above, not only can the problem of display difference between the main screen and the secondary screen caused by the secondary screen GOA and the secondary screen EOA being in different working states with the main screen GOA and the main screen EOA for a long time be avoided, but also the problem of the secondary screen flashing white when the mobile phone is in inverted color mode can be avoided.

[0032] In some embodiments, during the time period when the mobile phone is in the main screen display state (an instance of the first time period), the sub-screen EOA can be controlled to be turned on and the sub-screen GOA can be controlled to be turned off during the first time interval in each preset time period, and the sub-screen EOA can be controlled to be turned off and the sub-screen GOA can be controlled to be turned on during the second time interval immediately following the first time interval.

[0033] It is understood that a first time interval and a second time interval immediately following the first time interval can be referred to as a time period. Figure 3As shown, the first first time interval and the first second time interval immediately following the first first time interval can be called a time period.

[0034] It can be understood that in a time period, the second time interval follows the first time interval, that is, the end time of the first time interval and the start time of the second time interval are the same time. Figure 3 As shown, the end time of the first first time interval is T0, and the corresponding start time of the first second time interval is T0.

[0035] It is understandable that the first time period may include multiple consecutive time periods. In the multiple consecutive time periods, the first time interval in the current time period is adjacent to the second time interval in the current time period and the second time interval in the previous time period, and the first time interval in the current time period is separated from the first time interval in the previous time period and the next time interval. Figure 3 As shown, the first first time interval and the first second time interval immediately following the first first time interval are time period A; the second first time interval and the second second time interval immediately following the second first time interval are time period B; the second first time interval in time period B is adjacent to the second second time interval in time period B and the first second time interval in time period A, and the second first time interval in time period B is spaced from the first first time interval in time period A and the first time interval (such as the third first time interval) in a time period after time period B. That is, in a plurality of consecutive time periods, a plurality of first time intervals and a plurality of second time intervals are spaced from each other continuously.

[0036] In some embodiments, when the mobile phone 10 is in the main screen display state, if the sub-screen EOA is turned on, the display signal sent by the sub-screen EOA is usually a display signal of a black image, that is, the sub-screen EOA has a smaller current and consumes less power. The sub-screen GOA is used to control the on and off of the transmission path corresponding to the display signal. The sub-screen GOA has a larger current and consumes more power. In this way, the time of the first time interval for controlling the opening and closing of the sub-screen EOA and the closing of the sub-screen GOA can be set to be greater than the time of the second time interval for controlling the closing of the sub-screen EOA and the opening of the sub-screen GOA, so as to achieve the effect of low power consumption. For example, the first time interval is 25 seconds, the second time interval is 5 seconds, and the corresponding time period is 30 seconds.

[0037] It can be understood that when the first time period is an integer multiple of the first time interval plus the second time interval, the number of the first time interval is the same as the number of the second time interval. For example, if the first time period is 60 seconds, the first time interval is 25 seconds, and the second time interval is 5 seconds, then the number of the first time interval and the second time interval are both 2.

[0038] It is understood that when the first time period is not an integer multiple of the first time interval plus the second time interval, the number of the first time interval is different from the number of the second time interval. For example, if the first time period is 58 seconds, the first time interval is 25 seconds, and the second time interval is 5 seconds, then the first time interval is 2 and the second time interval is 1.

[0039] In other embodiments, the first time period, the first time interval, and the second time interval may also be other time ranges, which are not specifically limited.

[0040] In some embodiments, a mobile phone is only used as an example of an electronic device equipped with an external folding screen. In other embodiments, the electronic device equipped with an external folding screen may also include: a tablet computer, a wearable device, a vehicle-mounted device, an augmented reality (AR) / virtual reality (VR) device, a laptop computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA) or a dedicated camera (such as a SLR camera, a card camera), etc., without specific limitation.

[0041] The following Figure 1 or Figure 2 The mobile phone 10 shown is used as an example of an electronic device equipped with an external folding screen to explain some embodiments of the present application.

[0042] Figure 4 According to some embodiments of the present application, a control circuit diagram is shown. Figure 4 As shown, the control circuit at least includes: a driving transistor M1, a switching transistor M2, an OLED and a storage capacitor C1. It can be understood that a screen is usually deployed with multiple OLEDs, each OLED corresponds to a pixel point. The following uses an example of an OLED in the secondary screen 12 to explain some embodiments of the present application.

[0043] In some embodiments, Figure 4As shown, the gate of the switching transistor M2 is connected to the scanning line to receive the scanning signal Vselect, the source of the switching transistor M2 is connected to the signal line to receive the display signal Vdata, and the drain of the switching transistor M2 is connected to the gate of the driving transistor M1; the source of the driving transistor M1 is connected to the power supply voltage terminal to receive the power supply voltage VDD, the drain of the driving transistor M1 is connected to the positive terminal of the OLED, and the negative terminal of the OLED is grounded; one end of the storage capacitor C1 is connected to the drain of the switching transistor M2 and the gate of the driving transistor M1, and the other end of the storage capacitor C1 is connected to the source of the driving transistor M1.

[0044] Understandably, Figure 4 The explanation is given assuming that both the driving transistor M1 and the switching transistor M2 are P-type transistors. In other embodiments, the driving transistor M1 and the switching transistor M2 may also be N-type transistors, or the driving transistor M1 and the switching transistor M2 may also be N-type transistors and P-type transistors, respectively, without specific limitation. It can be understood that when the driving transistor M1 or the switching transistor M2 is a P-type transistor, the circuit connection method can be adaptively adjusted based on the source and drain of the P-type transistor. For example, when the driving transistor M1 is a P-type transistor, the source of the driving transistor M1 is connected to the positive terminal of the OLED, and the drain is connected to the power supply voltage terminal.

[0045] The following combination Figure 4 The circuit diagram shown is an example of controlling the sub-screen GOA and the sub-screen EOA through the sub-screen control unit to drive the sub-screen 12 to display an image, and explains the working principles of the sub-screen GOA and the sub-screen EOA.

[0046] In some embodiments, the mobile phone 10 controls the secondary screen GOA through the secondary screen control unit to apply the scanning signal Vselect through the scanning line to turn on the switch transistor M2 (corresponding to turning on the secondary screen GOA), and the secondary screen control unit can control the secondary screen EOA to send the display signal Vdata through the signal line (corresponding to turning on the secondary screen EOA). The display signal Vdata provides a potential value, which can form a potential difference across the storage capacitor C1 after the switch transistor M2 is turned on, thereby charging the storage capacitor C1, so as to store the charge corresponding to the display signal Vdata in the storage capacitor C1; at the same time, the potential provided by the display signal Vdata can also be applied to the gate of the switch transistor M2 to control the driving transistor M1 to turn on, and then the power supply voltage VDD can be input into the OLED through the driving transistor M1 to drive the corresponding pixel to emit light, thereby controlling the secondary screen 12 to display the image.

[0047] In some embodiments, when the mobile phone 10 controls the secondary screen GOA through the secondary screen control unit to stop applying the scan signal Vselect through the scan line to disconnect the switch transistor M2 (corresponding to turning off the secondary screen GOA), the corresponding secondary screen control unit controls the secondary screen EOA to also stop sending the display signal Vdata (corresponding to turning off the secondary screen EOA). Subsequently, the storage capacitor C1 is discharged to control the drive transistor M1 to be turned on through the stored display signal Vdata, and then the drive transistor M1 can be kept turned on when the secondary screen GOA is turned off and the secondary screen EOA is turned off, so that the power supply voltage VDD can be input into the OLED through the drive transistor M1 to stably drive the corresponding pixel to emit light, thereby controlling the secondary screen 12 to display the image.

[0048] The following combines multiple Figure 4 The circuit corresponding to a single pixel point shown in the figure takes the storage capacitor C1 and the driving transistor M1 as examples of each unit in the driving module to explain how to drive the auxiliary screen 12 to display an image.

[0049] In some embodiments, when the mobile phone 10 turns on the secondary screen GOA through the secondary screen control unit, the display signal Vdata corresponding to the opening of the secondary screen EOA can be sent to the driving module, and the display signal Vdata can be stored based on each unit in the driving module and the display signal Vdata is used to drive each pixel of the secondary screen 12 to emit light to display an image. In other embodiments, when the mobile phone 10 turns off the secondary screen GOA and the secondary screen EOA through the secondary screen control unit, the display signal Vdata stored in the driving module is used to drive each pixel of the secondary screen 12 to emit light to display an image.

[0050] In combination with the description of the aforementioned driving module, the working principles of the sub-screen GOA and the sub-screen EOA are explained below by taking an example in which, when the mobile phone is in the main screen display state, the sub-screen control unit controls the sub-screen GOA and the sub-screen EOA to be in a periodic on and off state so that the sub-screen 12 does not display an image.

[0051] In some embodiments, when the mobile phone 10 is in the main screen display state, the mobile phone 10 controls the sub-screen EOA through the sub-screen control unit to send the display signal Vdata to the driving module through the signal line (corresponding to turning on the sub-screen EOA), and controls the sub-screen GOA to stop applying the scan signal Vselect through the scan line to disconnect the switch transistor M2 (corresponding to turning off the sub-screen GOA), that is, disconnecting the target path connecting the sub-screen EOA and the driving module (an example of the first path). In this way, since the target path is disconnected, the display signal Vdata cannot be sent to the driving module, and the driving module cannot store the display signal Vdata, that is, the driving module cannot drive the sub-screen 12 to display the image, that is, the sub-screen 12 is displayed in a black screen. It can be understood that in the process of turning on the sub-screen EOA and turning off the sub-screen GOA, the sub-screen EOA in the sub-screen control unit is in a working state.

[0052] In some embodiments, after a certain period of time when the secondary screen EOA is turned on and the secondary screen GOA is turned off, the mobile phone 10 controls the secondary screen EOA through the secondary screen control unit to stop sending the display signal Vdata to the driving module through the signal line (corresponding to turning off the secondary screen EOA), and controls the secondary screen GOA to apply the scanning signal Vselect through the scanning line to turn on the switching transistor M2 (corresponding to turning on the secondary screen GOA), that is, the target path is turned on. In this way, since the secondary screen EOA does not send the display signal Vdata, and the driving module does not store the display signal Vdata, the driving module cannot obtain the display signal Vdata to drive the secondary screen 12 to display the image. It can be understood that in the process of turning off the secondary screen EOA and turning on the secondary screen GOA, the secondary screen GOA in the secondary screen control unit is in a working state.

[0053] It can be understood that after the secondary screen EOA is closed and the secondary screen GOA is opened for a certain period of time, the secondary screen EOA is controlled to be opened and closed again, and this cycle is repeated, so that the secondary screen EOA and the secondary screen GOA are in a periodic on-off state. In this way, the secondary screen EOA and the secondary screen GOA are in a periodic on-off state, which can not only avoid the problem of the secondary screen GOA and the secondary screen EOA being in different working states with the main screen GOA and the main screen EOA for a long time, resulting in the display difference between the main screen and the secondary screen, but also because the secondary screen EOA and the secondary screen GOA are in an on-off state, the secondary screen has no substantial image display, that is, it can also avoid the problem of the secondary screen flashing white when the mobile phone is in the inverted color mode.

[0054] In other embodiments, Figure 4In the circuit shown, the disconnection of the switching transistor M2 can be controlled by the sub-screen GOA sending a low-level scanning signal Vselect, and the conduction of the switching transistor M2 can be controlled by the sub-screen GOA sending a high-level scanning signal Vselect. Accordingly, when the sub-screen GOA sends a low-level signal to control the disconnection of the switching transistor M2, the sub-screen EOA is controlled to be turned on; when the sub-screen GOA sends a high-level signal to control the conduction of the switching transistor M2, the sub-screen EOA is controlled to be turned off. It can be understood that when the conduction and disconnection of the switching transistor M2 are controlled by high and low levels, the sub-screen GOA is always in a working state (switching between high and low levels), and the sub-screen EOA is in a periodic on-off state.

[0055] The following combination Figure 1 and Figure 2 The mobile phone 10 and Figure 4 The circuit structure diagram shown is used to explain some embodiments of the present application.

[0056] Figure 5 According to some embodiments of the present application, an interactive flow chart of a control method is shown. Figure 5 As shown, the process includes but is not limited to the following steps:

[0057] S411: the window management module 41 sends the display status of the mobile phone 10 to the display driver module 42: the main screen display status.

[0058] In some embodiments, the mobile phone 10 can detect the folding angle of the outer folding screen through a sensor (such as a magnetic sensor) in the mobile phone 10, and obtain the display state corresponding to the folding angle through a window management module (such as a folding screen management module (fold screen manager) in a window management service (window manager service, WMS)) 41. For example, when the folding angle is 180 to 150 degrees, the display state is a full-screen display state; when the folding angle is 60 to 0 degrees, the display state is a main screen display state.

[0059] In some embodiments, when the window management module 41 determines that the display state corresponding to the folding angle of the mobile phone 10 is the main screen display state, that is, the main screen 11 displays an image and the secondary screen 12 does not display an image, the display state of the mobile phone 10 is sent to the display driver module 42: the main screen display state.

[0060] S412: The display driving module 42 performs a state judgment to determine that the mobile phone 10 changes from the non-full-screen display state to the main-screen display state.

[0061] In some embodiments, after receiving the main screen display state sent by the window management module 41, the display driver module 42 performs a state judgment to determine whether the mobile phone 10 changes from the non-full screen display state to the main screen display state. It can be understood that the non-full screen display state includes a full screen display state and a secondary screen display state. The full screen display state indicates that the main screen 11 and the secondary screen 12 display images at the same time (such as when the mobile phone 10 is in the unfolded state, the mobile phone 10 is in the full screen display state); the secondary screen display state indicates that the secondary screen 12 displays an image, and the main screen 11 does not display an image (such as when the mobile phone 10 is in the folded state and the selfie mode is turned on, the mobile phone 10 is in the secondary screen display state).

[0062] S413: The display driving module 42 sets the sub-screen to the A state (an example of the first state).

[0063] In some embodiments, when the display driver module 42 determines that the mobile phone 10 changes to the main screen display state, the secondary screen 12 is set to the A state, where the A state is used to indicate turning on the secondary screen EOA and turning off the secondary screen GOA.

[0064] In some embodiments, the display driver module 42 sends a first signal to the OLED register in the display hardware module 43 to drive the sub-screen GOA to be turned off; for example, the display driver module 42 can send the first signal to the OLED register through the mobile industry processor interface (MIPI), and the first signal can be "0x12", such as the display driver module 42 writes "05 01 00 00 00 00 01 12" data to the OLED register through MIPI to drive the sub-screen GOA to be turned off; and the display driver module 42 sends a second signal to the OLED register to drive the sub-screen EOA to be turned on; for example, the first signal can be "0x84 0x0F", such as the display driver module 42 writes "15 01 00 00 00 00 02 84 0F" data to the OLED register through MIPI to drive the sub-screen EOA to be turned on.

[0065] S414 : The display driving module 42 executes a first delay process.

[0066] In some embodiments, when the secondary screen enters the A state, a first delay process of, for example, 25 seconds (corresponding to an example of the first time interval) is executed, and step S415 is entered after the first delay process. It can be understood that the execution of the first delay process allows the secondary screen to enter the A state for 25 seconds.

[0067] In some embodiments, when the display driver module 42 determines that the mobile phone 10 changes from the non-full-screen display state to the main screen display state, the display driver module 42 first sets the secondary screen 12 to the A state. After being set to the A state, the display driver module 42 runs the first first delay process so that the secondary screen 12 remains in the A state for the first time interval corresponding to the first delay process, such as 25 seconds. It can be seen that when the mobile phone 10 changes from the non-full-screen display state to the main screen display state, the secondary screen 12 is in the first first time interval, and the secondary screen 12 is in the A state in the first first time interval.

[0068] It can be understood that steps S413 and S414 correspond to Figure 3 The first time interval shown.

[0069] S415: The display driving module 42 runs a loop process.

[0070] In some embodiments, after the secondary screen 12 maintains the A state for the first time interval corresponding to the first first delay process, that is, after the first first delay process of, for example, the 26th second ends, the display driver module 42 executes the loop process of steps S416A to S417B. For example, the display driver module 42 executes instruction A such as "dsi_panel_enter_mode_cmd" to run the loop process.

[0071] It can be understood that the end of the first first delay process is the end time of the first first time interval, or the start time of the first second time interval. Figure 3 The time T0 is shown.

[0072] S416A: If the display driving module 42 determines that the secondary screen is currently in the A state, the display driving module 42 sets the secondary screen to the B state (an example of the second state).

[0073] In some embodiments, in the loop process, if the display driver module 42 determines that the secondary screen is currently in state A, the display driver module 42 sets the secondary screen to state B. State B is used to indicate turning off the secondary screen EOA and turning on the secondary screen GOA.

[0074] In some embodiments, the display driver module 42 sends a third signal to the OLED register to drive the sub-screen GOA to turn on; for example, the third signal may be "0x13", such as the display driver module 42 writes data "05 010000 00 00 01 13" to the OLED register through MIPI to drive the sub-screen GOA to turn on; and, the display driver module 42 sends a fourth signal to the OLED register to drive the sub-screen EOA to turn off; for example, the fourth signal may be "0x84 0x03", such as the display driver module 42 writes data "15 01 00 00 00 00 02 84 03" to the OLED register through MIPI to drive the sub-screen EOA to turn off.

[0075] S416B: The display driving module 42 executes a second delay process.

[0076] In some embodiments, when the secondary screen enters the B state, a second delay process of, for example, 5 seconds is executed, and the loop process of step S415 is re-run after the second delay process. It can be understood that the execution of the second delay process allows the secondary screen to enter the B state for 5 seconds.

[0077] In some embodiments, when the display driver module 42 determines that the mobile phone 10 changes to the main screen display state, the secondary screen 12 is set to the A state, and a first delay process of, for example, 25 seconds is executed to keep the secondary screen 12 in the A state for 25 seconds. Then, at the 26th second, the loop process is run, and the secondary screen 12 is in the A state at this time, then the secondary screen 12 is set to the B state at the 26th second, and a second delay process of, for example, 5 seconds is executed to keep the secondary screen 12 in the B state for 5 seconds from the 26th second to the 30th second (an example of the second time interval).

[0078] It can be understood that, before entering the loop process, the display driver module 42 sets the secondary screen 12 to the A state (step S413). That is, after entering the loop process (step S415), corresponding to the secondary screen 12 being in the A state, first jump to step S416A, so that the secondary screen 12 is first set from the A state to the B state after entering the loop process, and then enter step S416B, the display driver module 42 runs the first second delay process, so that the secondary screen 12 maintains the B state and the second time interval corresponding to the second delay process, such as 5 seconds.

[0079] That is to say, the display driver module 42 runs the loop process at the end of the first first delay process (corresponding to the start time of the first second time interval), and in the loop process, corresponding to determining that the sub-screen 12 is currently in state A, the display driver module 42 changes the sub-screen 12 from state A to state B, and executes the first second delay process, so that the sub-screen 12 maintains state B for the second time interval corresponding to the second delay process.

[0080] It can be seen that before the running cycle, the secondary screen 12 is in Figure 3 The first first time interval is shown, and the secondary screen 12 is in state A during the first first time interval; after the cycle process is run, the secondary screen is first in state Figure 3 The first second time interval is shown, and the secondary screen 12 is in the B state in the first second time interval.

[0081] S417A: If the display driving module 42 determines that the secondary screen is currently in the B state, the display driving module 42 sets the secondary screen to the A state.

[0082] In some embodiments, in the loop process, if the display driving module 42 determines that the secondary screen is currently in the B state, the display driving module 42 sets the secondary screen to the A state.

[0083] S417B: The display driving module 42 executes a first delay process.

[0084] In some embodiments, when the secondary screen enters the A state, a first delay process of, for example, 25 seconds is executed, and the loop process of step S415 is re-run after the first delay process.

[0085] It can be understood that when the display driver module 42 runs the loop process (step S415) to jump to steps S416A and S416B for the first time, the display driver module 42 sets the secondary screen 12 to the B state. That is, after step S416, corresponding to the secondary screen 12 being in the B state, the display driver module 42 jumps to step S417A, and the display driver module 42 changes the secondary screen 12 from the B state to the A state; then enters step S417B, and the display driver module 42 runs the second first delay process to make the secondary screen 12 maintain the A state and the time of the first time interval corresponding to the first delay process, such as 25 seconds.

[0086] That is to say, the display driving module 42 jumps to steps S417A and S417B at the end of the first second delay process (corresponding to the start time of the second first time interval), that is, the display driving module 42 changes the sub-screen 12 from state B to state A, and executes the second first delay process, so that the sub-screen 12 maintains state A for the first time interval corresponding to the first delay process.

[0087] It can be seen that before the running cycle, the secondary screen 12 is in Figure 3 The second screen 12 is in the A state in the first time interval. After the cycle process is run, the second screen 12 is first in the A state. Figure 3 The second time interval is shown in FIG. 1 , and the secondary screen 12 is in state B during the first second time interval; secondly, the secondary screen 12 is in state Figure 3 The second first time interval is shown, and the secondary screen 12 is in state A in the second first time interval. By analogy, after running the cycle process, the secondary screen 12 is in the time interval after the first first time interval and the corresponding A or B state.

[0088] S421: the window management module 41 sends the display status of the mobile phone 10 to the display driver module 42: non-main screen display status.

[0089] In some embodiments, when the window management module 41 determines that the display state corresponding to the folding angle of the mobile phone 10 is a non-main screen display state, the display state of the mobile phone 10 is sent to the display driving module 42: non-main screen display state.

[0090] S422: The display driver module 42 performs a state judgment to determine whether the mobile phone 10 changes from the full-screen display state to the non-main-screen display state.

[0091] In some embodiments, after receiving the non-main screen display state sent by the window management module 41, the display driver module 42 performs a state judgment to determine whether the mobile phone 10 changes from the full screen display state to the non-main screen display state.

[0092] S423: the display driving module 42 exits the loop process.

[0093] In some embodiments, when the display driver module 42 determines that the mobile phone 10 changes to a non-main screen display state, the loop process is exited. For example, the display driver module 42 executes instruction B such as "dsi_panel_exit_mode_cmd" to exit the loop process.

[0094] S424: If the display driving module 42 determines that the secondary screen is currently in the A state, the display driving module 42 controls the secondary screen to exit the A state.

[0095] In some embodiments, during the process of exiting the loop process, if the display driver module 42 determines that the secondary screen is currently in state A, the display driver module 42 controls the secondary screen to exit state A. Specifically, the display driver module 42 sends a third signal to the OLED register in the display hardware module 43 to drive the secondary screen GOA to be turned on, that is, the secondary screen EOA and the secondary screen GOA are turned on at the same time to control the secondary screen 12 to display an image.

[0096] S425: If the display driving module 42 determines that the secondary screen is currently in the B state, the display driving module 42 controls the secondary screen to exit the B state.

[0097] In some embodiments, during the process of exiting the loop process, if the display driver module 42 determines that the secondary screen is currently in state B, the display driver module 42 controls the secondary screen to exit state B. Specifically, the display driver module 42 sends a second signal to the OLED register in the display hardware module 43 to drive the secondary screen EOA to be turned on, that is, the secondary screen EOA and the secondary screen GOA are turned on at the same time to control the secondary screen 12 to display an image.

[0098] It can be understood that by controlling the sub-screen EOA and the sub-screen GOA to be in a periodic on-and-off state, it can not only avoid the problem of display differences between the main screen and the sub-screen due to the sub-screen GOA and the main screen GOA and the main screen EOA being in different working states for a long time, but also because the sub-screen has no substantial image display due to the on-and-off state of the sub-screen EOA and the sub-screen GOA, it can also avoid the problem of the sub-screen flashing white when the mobile phone is in inverted color mode.

[0099] Figure 6 According to some embodiments of the present application, a schematic diagram of the structure of a mobile phone 10 is shown. Figure 6 As shown, the mobile phone 10 includes a processor 110, a power module 140, a memory 180, a mobile communication module 130, a wireless communication module 120, a sensor module 170, an audio module 150, an interface module 160, a button 101, a display screen 102 and a motor 103, etc.

[0100] The processor 110 may include one or more processing units, for example, a processing module or processing circuit including a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processor DSP, a microprocessor (MCU), an artificial intelligence (AI) processor, or a programmable logic device (field programmable gate array, FPGA). Among them, different processing units may be independent devices or integrated in one or more processors. A storage unit may be provided in the processor 110 for storing instructions and data. In some embodiments, the storage unit in the processor 110 is a cache memory 180.

[0101] The power module 140 may include a power source, a power management component, etc. The power source may be a battery. The power management component is used to manage the charging of the power source and the power supply of the power source to other modules. In some embodiments, the power management component includes a charging management module and a power management module. The charging management module is used to receive charging input from the charger; the power management module is used to connect the power source, the charging management module and the processor 110. The power management module receives input from the power source and / or the charging management module, and supplies power to the processor 110, the display screen 102, the wireless communication module 120, etc.

[0102] The mobile communication module 130 may include, but is not limited to, an antenna, a power amplifier, a filter, a low noise amplifier (LNA), etc. The mobile communication module 130 may provide a solution for wireless communications including 2G / 3G / 4G / 5G, etc., applied to the mobile phone 10. The mobile communication module 130 may receive electromagnetic waves by an antenna, and perform filtering, amplification, and other processing on the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 130 may also amplify the signal modulated by the modulation and demodulation processor, and convert it into electromagnetic waves for radiation through the antenna. In some embodiments, at least some of the functional modules of the mobile communication module 130 may be arranged in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 130 may be arranged in the same device as at least some of the modules of the processor 110.

[0103] The wireless communication module 120 may include an antenna, and transmit and receive electromagnetic waves via the antenna. The wireless communication module 120 may provide wireless communication solutions including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (blue tooth, BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR), etc., which are applied to the mobile phone 10. The mobile phone 10 can communicate with the network and other devices through wireless communication technology.

[0104] In some embodiments, the mobile communication module 130 and the wireless communication module 120 of the mobile phone 10 may also be located in the same module.

[0105] The display screen 102 is used to display a human-computer interaction interface, images, videos, etc. The display screen 102 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED), a flexible light-emitting diode (FLED), a quantum dot light-emitting diode (QLED), etc.

[0106] The sensor module 170 may include a proximity light sensor, a pressure sensor, a gyroscope sensor, an air pressure sensor, a magnetic sensor (folding screen opening and closing detection), an acceleration sensor, a distance sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, and the like.

[0107] The audio module 150 is used to convert digital audio information into analog audio signal output, or convert analog audio input into digital audio signal. The audio module 150 can also be used to encode and decode audio signals. In some embodiments, the audio module 150 can be arranged in the processor 110, or some functional modules of the audio module 150 can be arranged in the processor 110. In some embodiments, the audio module 150 can include a speaker, an earpiece, a microphone, and an earphone interface.

[0108] The interface module 160 includes an external memory interface, a universal serial bus (USB) interface, and a SIM card interface. The external memory interface can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the mobile phone 10. The external memory card communicates with the processor 110 via the external memory interface to implement a data storage function. The universal serial bus interface is used for the mobile phone 10 to communicate with other devices. The subscriber identity module card interface is used to communicate with the SIM card installed in the mobile phone 10, for example, to read the phone number stored in the SIM card, or to write the phone number into the SIM card.

[0109] In some embodiments, the mobile phone 10 further includes a button 101, a motor 103, and an indicator. The button 101 may include a volume button, an on / off button, etc. The motor 103 is used to make the mobile phone 10 vibrate, for example, vibrate when the user's mobile phone 10 is called to prompt the user to answer the call. The indicator may include a laser indicator, a radio frequency indicator, a light-emitting diode (LED) indicator, etc.

[0110] It is understood that the structure illustrated in this embodiment does not constitute a specific limitation on the mobile phone 10. In other embodiments of the present application, the mobile phone 10 may include more or fewer components than shown in the figure, or combine some components, or separate some components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0111] In some embodiments, the embodiments of the present application further provide a computer-readable medium, which stores a program code. When the computer program code runs on a computer, the computer executes the methods in the above aspects.

[0112] In some embodiments, the embodiments of the present application further provide a computer program product, which includes: a computer program code, which enables the computer to execute the methods in the above aspects when the computer program code runs on a computer.

[0113] In the accompanying drawings, some structural or method features may be shown in a specific arrangement and / or order. However, it should be understood that such a specific arrangement and / or order may not be required. Instead, in some embodiments, these features may be arranged in a manner and / or order different from that shown in the illustrative drawings. In addition, the inclusion of structural or method features in a particular figure does not mean that such features are required in all embodiments, and in some embodiments, these features may not be included or may be combined with other features.

[0114] It should be noted that the units / modules mentioned in the various device embodiments of the present application are all logical units / modules. Physically, a logical unit / module can be a physical unit / module, or a part of a physical unit / module, or can be implemented as a combination of multiple physical units / modules. The physical implementation method of these logical units / modules themselves is not the most important. The combination of functions implemented by these logical units / modules is the key to solving the technical problems proposed by the present application. In addition, in order to highlight the innovative part of the present application, the above-mentioned device embodiments of the present application do not introduce units / modules that are not closely related to solving the technical problems proposed by the present application, which does not mean that there are no other units / modules in the above-mentioned device embodiments.

[0115] It should be noted that in the examples and description of this patent, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0116] Although the present application has been illustrated and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the present application.

Claims

1. A control method, applied to an electronic device, wherein: The electronic device comprises an external folding screen, the external folding screen comprises a first screen and a second screen, the first screen comprises a first control unit for controlling the first screen to display an image, the second screen comprises a second control unit for controlling the second screen to display an image, the first control unit comprises a first signal module, a second signal module and a driving module, the first signal module is used to control the on and off of a first path for the second signal module to communicate with the driving module, the second signal module sends a display signal to the driving module through the first path, the driving module is used to receive the display signal and control the first screen to display an image based on the display signal, characterized in that the method comprises: corresponding to a first period in which the second screen displays an image and the first screen does not display an image, so that the first signal module and the second signal module in the first control unit operate in an alternate working state, wherein the first period includes N first time intervals and at least N-1 second time intervals, and the first time intervals and the second time intervals are continuously spaced from each other; The method of making the first signal module and the second signal module in the first control unit operate in a manner of alternately being in a working state includes: In the first time interval, the first control unit instructs the first signal module to send the display signal to the driving module, and instructs the second signal module to control the first path to be disconnected; and In the second time interval immediately following the first time interval, the first control unit instructs the first signal module to stop sending the display signal to the driving module, and instructs the second signal module to control the first path to be turned on.

2. The method according to claim 1, characterized in that The method further comprises: In response to the first control unit instructing the first signal module to send the display signal to the driving module, and instructing the second signal module to control the first path to be disconnected, the first control unit executes a first delay process to keep the first signal module sending the display signal to the driving module and the second signal module controlling the first path to be disconnected for a time corresponding to the first time interval; or, In response to the first control unit instructing the first signal module to stop sending the display signal to the driving module and instructing the second signal module to control the first path to be turned on, the first control unit executes a second delay process to keep the first signal module stopping sending the display signal to the driving module and instructing the second signal module to control the first path to be turned on for a time corresponding to the second time interval.

3. The method according to claim 2, characterized in that The first time period corresponding to the second screen displaying an image and the first screen not displaying an image, so that the first signal module and the second signal module in the first control unit operate in a manner of being alternately in a working state, includes: The first control unit indicates that the first signal module and the second signal module are in the first state; Running a first of the first delay processes to maintain the first state for a time period corresponding to the first time interval; In response to the end of the first delay process, a loop process is executed. The cycle process includes: At the start time of the i-th second time interval, in response to determining that the first signal module and the second signal module are in the first state, the first control unit instructs the first signal module and the second signal module to change from the first state to the second state, and runs the i-th second delay process to keep the second state for a time corresponding to the second time interval; At the start time of the (i+1)th first time interval, in response to determining that the first signal module and the second signal module are in the second state, the first control unit instructs the first signal module and the second signal module to change from the second state to the first state, and runs the (i+1)th first delay process to keep the first state for a time corresponding to the first time interval; Here, i is an integer greater than or equal to 1.

4. The method according to claim 3, characterized in that The method further comprises: Determining that the electronic device enters a non-main screen display state, and exiting the loop process; In the process of exiting the loop, At the moment when the loop process exits, it is determined that the first signal module and the second signal module are in the first state, and the first control unit instructs the second signal module to control the first path to be turned on; or, When the loop process exits, it is determined that the first signal module and the second signal module are in the second state, and the first control unit instructs the first signal module to send the display signal to the driving module.

5. The method according to any one of claims 1 to 4, characterized in that: The method further comprises: The first time interval is greater than the second time interval.

6. The method according to claim 5, characterized in that The electronic device is in an inverted color mode.

7. The method according to claim 5, characterized in that The first signal module is a light emitting control signal driving circuit (EOA), and the second signal module is an array substrate row driving scanning circuit (GOA).

8. The method according to claim 5, characterized in that A first switch is provided on the first path, and the second signal module is used to control the on and off of the first switch; One end of the first switch is connected to the first signal module, and the other end is connected to the first capacitor in the driving module and the second switch, and the first capacitor or the first signal module is used to control the on and off of the second switch; Corresponding to the second switch being in the on state, the first screen can display an image.

9. A computer-readable storage medium, characterized in that: The readable storage medium stores instructions, which, when executed on an electronic device, enable the electronic device to implement the method according to any one of claims 1 to 8.

10. An electronic device, characterized in that: include: a memory for storing instructions to be executed by one or more processors of the electronic device; and a processor, which is one of the processors of the electronic device, configured to execute instructions stored in the memory to implement the method according to any one of claims 1 to 8.

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