Electronic equipment

Abstract

The invention relates to electronic equipment. The electronic equipment comprises a first display screen; a second display screen; the power management module is used for supplying power to the first display screen and the second display screen; one end of the switching module is connected with the power management module, and the other end of the switching module is electrically connected with the first display screen and the second display screen; the control module is connected with the switching module, and the control module controls the switching module to conduct the first display screen and the power management module or conduct the second display screen and the power management module. According to the invention, the switching module and the control module are arranged to control the conduction relationship between the power management module and the plurality of display screens. A one-to-many power supply management relationship between the power supply management modules and the display screen is realized, so that the number of the power supply management modules is reduced, the occupied area of a power supply circuit of the display screen is reduced, and the cost of the display assembly is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic device display control, and in particular to an electronic device. Background Art

[0002] With the continuous development of electronic devices, electronic devices with multiple screens have been favored by many users. In order to improve the battery life and applicability of electronic devices in different occasions, electronic devices with multiple screens usually control different screens to light up according to the status of the electronic devices and setting parameters.

[0003] However, currently electronic devices with multiple screens are usually equipped with an independent power supply circuit for each screen. Multiple power supply circuits occupy a large circuit board design area, hinder the lightweight and thinness of electronic devices, and bring higher production costs. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the present disclosure provides an electronic device.

[0005] According to a first aspect of an embodiment of the present disclosure, an electronic device is provided, comprising: a first display screen; a second display screen; a power management module, the power management module being used to supply power to the first display screen and the second display screen; a switching module, one end of the switching module being connected to the power management module, and the other end of the switching module being electrically connected to the first display screen and the second display screen, respectively; and a control module, the control module being connected to the switching module, wherein the control module controls the switching module to conduct electricity between the first display screen and the power management module, or to conduct electricity between the second display screen and the power management module.

[0006] In some embodiments, the power management module; one end of the switching module is respectively connected to the multiple power management ports, and the other end of the switching module is respectively connected to the first display screen and the second display screen.

[0007] In some embodiments, the control module transmits different electrical signals to the switching module to enable the switching module to conduct electricity between the first display screen and the power management module, or to conduct electricity between the second display screen and the power management module.

[0008] In some embodiments, the switching module includes a first path and a second path; the first end of the first path and the first end of the second path are both connected to the switching module; the second end of the first path is connected to the first display screen, and the second end of the second path is connected to the second display screen, wherein the control module sends a first conduction signal to the switching module to turn on the first display screen and the power management module; the control module sends a second conduction signal to the switching module to turn on the second display screen and the power management module.

[0009] In some embodiments, the switching module includes multiple switching groups, and the switching groups correspond one-to-one to the multiple power management ports; the first end of each of the switching groups is connected to the power management port, and the second end of each of the switching groups is connected to the first path and the second path, wherein the control module sends a first conduction signal to the switching group, and the switching group conducts the first display screen and the power management module through the first path; the control module sends a second conduction signal to the switching group, and the switching group conducts the second display screen and the power management module through the second path.

[0010] In some embodiments, the switching group includes one or more switches; the control module sends different conduction signals to the switching group, and the switching group changes the conduction state of the switch to conduct the first display screen and the power management module through the first path, or to conduct the second display screen and the power management module through the second path.

[0011] In some embodiments, the switching module includes a first switch and a second switch; the power management port includes a first power supply port and a second power supply port, the first power supply port is connected to the first switch, and the second power supply port is connected to the second switch, wherein the impedance of the second switch is smaller than the impedance of the first switch; the current output by the second power supply port is greater than the current output by the first power supply port.

[0012] In some embodiments, the first switch is a single-channel switch and the second switch is a multi-channel switch.

[0013] In some embodiments, the switch includes a single-pole multi-throw switch; the power management port includes a signal port, and the signal port is connected to the single-pole multi-throw switch.

[0014] In some embodiments, the electronic device includes a third display screen, and the switching module includes a third path; a first end of the third path is connected to the power management module, and a second end of the third path is connected to the third display screen, wherein the control module sends a third conduction signal to the switching group, and the switching group conducts the third display screen and the power management module through the third path.

[0015] In some embodiments, the control module simultaneously sends the first conduction signal and the second conduction signal to the switching group, the switching group conducts the first display screen and the power management module through the first path, and the switching group also conducts the second display screen and the power management module through the second path, wherein the rated voltage of the first display screen is equal to the rated voltage of the second display screen.

[0016] In some embodiments, the control module includes a processor, which is connected to the switching module and sends a conduction signal to the switching module.

[0017] In some embodiments, the control module includes a switching power supply, and the processor controls the switching power supply to supply power to or stop supplying power to the switching module, wherein before the switching module turns on the display screen and the power management module, the switching power supply starts to supply power to the switching module; when the switching module disconnects the display screen and the power management module, the switching power supply stops supplying power to the switching module.

[0018] In some embodiments, the control module includes: an enabler, one end of the enabler is connected to the control module, and the other end of the enabler is connected to the switching power supply, wherein the processor controls the switching power supply to supply power or stop supplying power to the switching module through the enabler.

[0019] The technical solution provided by the embodiment of the present disclosure may include the following beneficial effects: the present disclosure controls the conduction relationship between the power management module and multiple display screens by providing a switching module and a control module, thereby realizing a one-to-many power supply management relationship between the power management module and the display screen, thereby reducing the number of power management modules, reducing the occupied area of ​​the display screen power supply circuit, and reducing the cost of the display component.

[0020] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0022] Figure 1 is a circuit diagram of an electronic device according to an exemplary embodiment.

[0023] Figure 2A is a circuit diagram of a second switching group according to an exemplary embodiment.

[0024] Figure 2B is a circuit diagram of a first switching group according to an exemplary embodiment.

[0025] Figure 2C is a circuit diagram of a fifth switching group according to an exemplary embodiment.

[0026] Figure 3 is a circuit diagram of an electronic device according to another exemplary embodiment.

[0027] Figure 4A is a circuit diagram of a switch group according to another exemplary embodiment.

[0028] Figure 4B is a circuit diagram of another switching group according to another exemplary embodiment.

[0029] Figure 4C is a circuit diagram of another switching group according to another exemplary embodiment.

[0030] Figure 5 is a timing diagram showing electrical signals of a control module and a supply voltage of a switching power supply according to an exemplary embodiment. DETAILED DESCRIPTION

[0031] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0032] In the related art, a power management module is usually used to control whether the screen is powered, thereby completing the control of the screen display status. However, each power management module only controls one screen, so multiple power management modules must be set up in the electronic device. On the one hand, multiple power management modules bring additional costs. On the other hand, multiple power management modules occupy a larger circuit board design area, hindering the development of lightweight electronic devices.

[0033] In order to solve the above technical problem, an electronic device is provided according to an embodiment of the present disclosure.

[0034] The electronic device may be a laptop computer, a desktop computer, a mobile phone, a digital broadcast terminal, a message transceiver, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, a translator, and a wearable device such as a watch or a bracelet, and may be any electronic device with a speaker. In the following description, a mobile phone is used as an example, but the present disclosure is not limited thereto.

[0035] Figure 1 is a circuit diagram of an electronic device according to an exemplary embodiment.

[0036] In some embodiments, Figure 1 As shown, the electronic device may include: a first display screen 11 , a second display screen 12 , a power management module 2 , a switching module and a control module 4 .

[0037] The first display screen 11 and the second display screen 12 may be display screens used by the electronic device to display images. By providing the first display screen 11 and the second display screen 12 on the electronic device, the electronic device can adapt to different usage scenarios by displaying different display screens.

[0038] Exemplarily, the first display screen 11 may be an outer screen of a foldable electronic device, and the second display screen 12 may be an inner screen of the foldable electronic device. When the electronic device is in a folded state, the first display screen 11 lights up and the second display screen 12 turns off; when the electronic device is in an unfolded state, the first display screen 11 turns off and the second display screen 12 lights up.

[0039] The present disclosure is not limited thereto, and the electronic device may also be provided with a plurality of display screens, and the plurality of display screens may be in different display states in different states respectively.

[0040] The power management module 2 can be connected to the power supply of the electronic device, and the power management module 2 can change its output voltage within a certain range. When the power management module 2 is connected to the display screen, the power management module 2 can output a voltage matching the display screen to the display screen, so that the display screen can work normally.

[0041] The switching module can be a module that has the function of changing the circuit connectivity state. One end of the switching module can be connected to the power management module 2, and the other end of the switching module can be electrically connected to the first display screen 11 and the second display screen 12 respectively. The switching module can make the power management module 2 conductive with the first display screen 11 or the power management module 2 conductive with the second display screen 12.

[0042] The control module 4 may be connected to the switching module, and the control module 4 may control the switching module to thereby change the conduction state between the power management module 2 and the display screen.

[0043] Exemplarily, the control module 4 may control the switching module to connect the first display screen 11 and the power management module 2 , and the control module 4 may also control the switching module to connect the second display screen 12 and the power management module 2 .

[0044] By controlling the switching module through the control module 4 to control the conduction relationship between the power management module 2 and multiple display screens, a one-to-many power supply management relationship between the power management module 2 and the display screens is realized, thereby reducing the number of power management modules 2, reducing the occupied area of ​​the display screen power supply circuit, and reducing the cost of the electronic device.

[0045] In some embodiments, Figure 1 As shown, the power management module 2 may include a power management port, and the power management port may be a port for the power management module 2 to output a voltage or an electrical signal.

[0046] Exemplarily, when the power management port and the display screen are connected, the power management port can output a voltage matching the display screen to the display screen, so that the display screen can work normally.

[0047] The present disclosure is not limited thereto, and the power management port may also output an electrical signal to the display screen or receive an electrical signal from the display screen, thereby obtaining information such as the working status of the screen.

[0048] One end of the switch module can be connected to a plurality of power management ports respectively, and the other end of the switch module can be connected to a plurality of display screens respectively.

[0049] Exemplarily, the power management port may include a first power supply port 21, a second power supply port 22, a third power supply port 23, a fourth power supply port 24 and a signal port 25. One end of the switching module may be connected to the first power supply port 21, the second power supply port 22, the third power supply port 23, the fourth power supply port 24 and the signal port 25, respectively, and the other end of the switching module may be connected to the first display screen 11 and the second display screen 12, respectively. The switching module may connect the first power supply port 21, the second power supply port 22, the third power supply port 23, the fourth power supply port 24 and the signal port 25 to the first display screen 11, so that the first display screen 11 can work normally. The switching module may also connect the first power supply port 21, the second power supply port 22, the third power supply port 23, the fourth power supply port 24 and the signal port 25 to the second display screen 12, so that the second display screen 12 can work normally.

[0050] In some embodiments, the power management module 2 may include multiple different power management ports, which can provide power to different parts of the display screen, and each power management module 2 only includes a group of power management ports that can fully meet the needs of a single display screen. Therefore, by switching the connection relationship between the power management port and different display screens through the switching module, a one-to-many power supply management relationship between the power management module 2 and the display screen is achieved, thereby reducing the number of power management modules 2, reducing the occupied area of ​​the display screen power supply circuit, and reducing the cost of the electronic device.

[0051] In some embodiments, Figure 1 As shown, the control module 4 can transmit different electrical signals to the switching module, and the switching module can connect different display screens to the power management port after receiving the different electrical signals.

[0052] For example, Figure 1 As shown. A first signal path SW0 and a second signal path SW1 may be included between the control module 4 and the switching module. The control module 4 may input a high-level signal to the switching module through the first signal path SW0, and the switching module may conduct the first display screen 11 and the power management module 2 after receiving the signal from the first signal path SW0; the control module 4 may input a high-level signal to the switching module through the second signal path SW1, and the switching module may conduct the second display screen 12 and the power management module 2 after receiving the signal from the second signal path SW1.

[0053] By controlling the switching module through the control module 4 to switch the conduction relationship between the power management module 2 and different display screens, a one-to-many power supply management relationship between the power management module 2 and the display screens is realized, thereby reducing the number of power management modules 2, reducing the occupied area of ​​the display screen power supply circuit, and reducing the cost of the electronic equipment.

[0054] In some embodiments, Figure 1 As shown, the switching module may include a first path 31 and a second path 32 , a first end of the first path 31 may be connected to the power management module 2 , and a first end of the second path 32 may be connected to the switching module.

[0055] The second end of the first passage 31 can be connected to the first display screen 11, and the second end of the second passage 32 can be connected to the second display screen 12; the first passage 31 can be all passages connecting the switching module to the first display screen 11, and the second passage 32 can be all passages connecting the switching module to the second display screen 12.

[0056] The control module 4 may send a first conduction signal to the switching module. After the switching module receives the first conduction signal, the switching module may conduct the first display screen 11 and the power management module 2 through the first path 31 .

[0057] The control module 4 may send a second conduction signal to the switching module. After the switching module receives the second conduction signal, the switching module may conduct the second display screen 12 and the power management module 2 through the second path 32 .

[0058] Through the first path 31 and the second path 32, the switching module can control the conduction state of the power management module 2 and the display screen, so that the switching module can control the conduction state of the power management module 2 and the first display screen 11 and the second display screen 12, realizing a one-to-many power supply management relationship between the power management module 2 and the display screen, thereby reducing the number of power management modules 2, reducing the occupied area of ​​the display screen power supply circuit, and reducing the cost of the electronic device.

[0059] In some embodiments, Figure 1 As shown, the switch module may include multiple switch groups, and the switch groups correspond to multiple power management ports one by one. The first end of each switch group may be connected to the power management port, and the second end of each switch group may be connected to the first path 31 and the second path 32.

[0060] Exemplarily, the switching groups may include a first switching group 301 , a second switching group 302 , a third switching group 303 , a fourth switching group 304 , and a fifth switching group 305 .

[0061] The first end of the first switch group 301 may be connected to the first power supply port 21 , and the second end of the first switch group 301 may be connected to the first path 31 and the second path 32 ;

[0062] The first end of the second switch group 302 may be connected to the second power supply port 22, and the second end of the second switch group 302 may be connected to the first path 31 and the second path 32;

[0063] A first end of the third switch group 303 may be connected to the third power supply port 23, and a second end of the third switch group 303 may be connected to the first path 31 and the second path 32;

[0064] A first end of the fourth switch group 304 may be connected to the fourth power supply port 24, and a second end of the fourth switch group 304 may be connected to the first passage 31 and the second passage 32;

[0065] A first end of the fifth switch group 305 may be connected to the signal port 25 , and a second end of the fifth switch group 305 may be connected to the first path 31 and the second path.

[0066] Among them, the control module 4 can send a first conduction signal to the switching group. After the switching group receives the first conduction signal, the switching group can conduct the first display screen 11 and the power management module 2 through the first path 31; the control module 4 can send a second conduction signal to the switching group. After the switching group receives the second conduction signal, the switching group can conduct the second display screen 12 and the power management module 2 through the second path 32.

[0067] Exemplarily, the control module 4 can send a first conduction signal to the first switching group 301 through the first signal path SW0. After the first switching group 301 receives the first conduction signal, the first switching group 301 can conduct the first display screen 11 and the first power supply port 21 through the first path 31; the control module 4 can send a second conduction signal to the first switching group 301 through the second signal path SW1. After the first switching group 301 receives the second conduction signal, the first switching group 301 can conduct the second display screen 12 and the first power supply port 21 through the second path 32.

[0068] When the first switch group 301 does not receive a signal from the control module 4 , the first switch group 301 can control the first power supply port 21 to be disconnected from the first display screen 11 and the second display screen 12 .

[0069] By controlling the switching group through the control module 4, the switching group can control the conduction state of the power management module 2 and the first display screen 11 and the second display screen 12 according to the signal instruction of the control module 4, thereby realizing a one-to-many power supply management relationship between the power management module 2 and the display screen, thereby reducing the number of power management modules 2, reducing the occupied area of ​​the display screen power supply circuit, and reducing the cost of the electronic device.

[0070] In some embodiments, since the signal port 25 only transmits signals and does not power the screen, the current and voltage of the line are low, so there is no need to disconnect the conduction state. For example, the control module 4 can send a second conduction signal to the fifth switching group 305 through the second signal path SW1. After the fifth switching group 305 receives the second conduction signal, the fifth switching group 305 can conduct the second display screen 12 and the signal port 25 through the second path 32.

[0071] When the fifth switch group 305 does not receive the second conduction signal from the control module 4 , the fifth switch group 305 can control the signal port 25 to be conducted with the first display screen 11 .

[0072] Figure 2A is a circuit diagram of a second switching group according to an exemplary embodiment. Figure 2B is a circuit diagram of a first switching group according to an exemplary embodiment. Figure 2C is a circuit diagram of a fifth switching group according to an exemplary embodiment.

[0073] In some embodiments, Figures 2A-2C As shown, the switch group may include one or more switches, and the change of the conduction state of the switch may change the conduction relationship between the power management module 2 and the display screen.

[0074] The control module 4 can send different conduction signals to the switching group. After receiving the conduction signal, the switching group can change the conduction state of the switch, thereby connecting the first display screen 11 and the power management module 2 through the first path 31, or connecting the second display screen 12 and the power management module 2 through the second path 32.

[0075] For example, Figure 2A As shown, the first switch group 301 may include two switch groups, each switch group includes two switches connected in parallel, and each switch group may be respectively arranged on the first passage 31 and the second passage 32 .

[0076] The control module 4 can send a first conduction signal to the first switch group 301 through the first signal path SW0. After the first switch group 301 receives the second conduction signal, the first switch group 301 can conduct the switch group located in the first path 31. Both switches of the switch group located in the first path 31 are turned on, so that the first path 31 conducts the first display screen 11 and the first power supply port 21.

[0077] The control module 4 can send a second conduction signal to the first switch group 301 through the second signal path SW1. After the first switch group 301 receives the second conduction signal, the first switch group 301 can conduct the switch group located in the second path 32, and both switches of the switch group located in the second path 32 become conducting states, so that the second path 32 conducts the second display screen 12 and the first power supply port 21.

[0078] When the first switch group 301 does not receive a signal from the control module 4 , all switches in the first switch group 301 can be turned off, so that the first path 31 and the second path 32 are both disconnected, and the first power supply port 21 and the first display screen 11 and the second display screen 12 are not conductive.

[0079] The fourth switching group 304 may have the same structure and control method as the first switching group 301 , which will not be explained in detail in this disclosure.

[0080] For example, Figure 2B As shown, the second switch group 302 may include two switches, and the two switches may be respectively arranged on the first passage 31 and the second passage 32 .

[0081] The control module 4 may send a first conduction signal to the second switch group 302 through the first signal path SW0. After the second switch group 302 receives the first conduction signal, the second switch group 302 may conduct the switch located in the first path 31, so that the first path 31 conducts the first display screen 11 and the second power supply port 22.

[0082] The control module 4 may send a second conduction signal to the second switch group 302 through the second signal path SW1. After receiving the second conduction signal, the second switch group 302 may conduct the switch located in the second path 32, so that the second path 32 conducts the second display screen 12 and the second power supply port 22.

[0083] When the second switch group 302 does not receive a signal from the control module 4 , all switches in the second switch group 302 can be turned off, so that the first path 31 and the second path 32 are both disconnected, and the second power supply port 22 is not connected to the first display screen 11 and the second display screen 12 .

[0084] The third switching group 303 may have the same structure and control method as the second switching group 302 , which will not be explained in detail in this disclosure.

[0085] By setting a switch in the switching group, the switching group can control whether the first path 31 and the second path 32 are turned on, so that the switching group can control the conduction state of the power management module 2 and the first display screen 11 and the second display screen 12 according to the signal instruction of the control module 4, thereby realizing a one-to-many power supply management relationship between the power management module 2 and the display screen, thereby reducing the number of power management modules 2, reducing the occupied area of ​​the display screen power supply circuit, and reducing the cost of the electronic device.

[0086] In some embodiments, Figure 2A and 2B As shown, the first switch group 301 may include a first switch 34 , the second switch group 302 may include a second switch 35 , the first power supply port 21 may be connected to the first switch 34 , and the second power supply port 22 may be connected to the second switch 35 .

[0087] The current output by the second power supply port 22 may be greater than the current output by the first power supply port 21 , and the impedance of the second switch 35 may be less than the impedance of the first switch 34 .

[0088] The present disclosure is not limited thereto, the third switch group 303 may include a third switch, the fourth switch group 304 may include a fourth switch, the third power supply port 23 may be connected to the third switch, and the fourth power supply port 24 may be connected to the fourth switch.

[0089] The current output by the third power supply port 23 may be greater than the current output by the fourth power supply port 24 , and the impedance of the third switch may be less than the impedance of the fourth switch.

[0090] For power management ports with large output current or output voltage, the impedance of the switching group can be reduced by setting a switch group with multiple switches in parallel within the switching group, thereby reducing the impact of the switching group on voltage and current, so that the display can normally receive the voltage from the power management port.

[0091] For a power management port with a relatively small output current or output voltage, a first switch 34 with fewer components may be used, thereby saving the production cost of the product.

[0092] In some embodiments, the first switch 34 may be a single-channel switch, and the second switch 35 may be a multi-channel switch.

[0093] For example, Figure 2A As shown, the second switch group 302 may include two second switches 35 , each of which includes two switches connected in parallel, that is, the second switch 35 is a multi-channel switch, and each second switch 35 may be respectively arranged on the first path 31 and the second path 32 .

[0094] For example, Figure 2B As shown, the first switch group 301 may include two first switches 34 , each of which includes one switch, that is, the first switch 34 is a single-channel switch, and the two first switches 34 may be respectively arranged on the first path 31 and the second path 32 .

[0095] For power management ports with large output current or output voltage, the impedance of the switching group can be reduced by providing a multi-access switch in the switching group, thereby reducing the impact of the switching group on voltage and current, so that the display can normally receive the voltage from the power management port.

[0096] For power management ports with small output current or output voltage, a single-channel switch with fewer parts can be used, thereby saving product production costs.

[0097] In some embodiments, Figure 2C As shown, the switch may include a single-pole multi-throw switch, and the signal port 25 may be connected to the single-pole multi-throw switch.

[0098] For example, Figure 2C As shown, the fifth switch group 305 may include a single-pole double-throw switch, and the single-pole double-throw switch has two conduction states, and the two conduction states can respectively conduct the first path 31 and conduct the second path 32.

[0099] The control module 4 can send a second conduction signal to the fifth switch group 305 through the second signal path SW1. After receiving the second conduction signal, the fifth switch group 305 can make the single-pole double-finger switch conduct the second path 32, so that the second path 32 conducts the second display screen 12 and the signal port 25.

[0100] When the fifth switch group 305 does not receive a signal from the control module 4 , the double-throw switch can conduct the first path 31 , so that the first path 31 conducts the first display screen 11 and the signal port 25 .

[0101] Figure 3 is a circuit diagram of an electronic device according to another exemplary embodiment. Figure 4A is a circuit diagram of a switch group according to another exemplary embodiment. Figure 4B is a circuit diagram of another switching group according to another exemplary embodiment. Figure 4C is a circuit diagram of another switching group according to another exemplary embodiment.

[0102] In some embodiments, Figure 3-4C The electronic device may include a third display screen 13 , and the switching module may include a third path 33 , and the third path 33 may be all paths connecting the switching module and the third display screen 13 .

[0103] The first end of the third path 33 can be connected to the power management module 2, and the second end of the third path 33 can be connected to the third display screen 13, wherein the control module 4 can send a third conduction signal to the switching group through the third signal path SW2, and the switching group can conduct the third display screen 13 and the power management module 2 through the third path 33.

[0104] The present disclosure is not limited thereto, and the electronic device may also have more display screens.

[0105] Its structure and control method are the same or similar to those of the above-mentioned embodiments, so they will not be elaborated in detail in this disclosure.

[0106] In some embodiments, the control module 4 can simultaneously send a first conduction signal and a second conduction signal to the switching group, and the switching group can conduct the first display screen 11 and the power management module 2 through the first path 31, and the switching group can also conduct the second display screen 12 and the power management module 2 through the second path 32, wherein the rated voltage of the first display screen 11 is equal to the rated voltage of the second display screen 12.

[0107] The power management port can only output one voltage at the same time. Therefore, by configuring the rated voltage of the first display screen 11 and the rated voltage of the second display screen 12 to be the same, the voltage output by the power management port can meet the working requirements of the first display screen 11 and the second display screen 12 at the same time, so that the power management port can simultaneously provide the first display screen 11 and the second display screen 12 with a voltage that meets the operating requirements, so that the first display screen 11 and the second display screen 12 can light up at the same time, thereby improving the applicability of the electronic device.

[0108] In some embodiments, Figure 1 As shown, the control module 4 may include a processor 41, which may be connected to the switching module and send a conduction signal to the switching module. Exemplarily, the processor 41 may be connected to the switching module signal through the first signal path SW0 and the second signal path SW1, and control the switching module through the first signal path SW0 and the second signal path SW1.

[0109] The switching module is controlled by the processor 41 to control the conduction relationship between the power management module 2 and multiple display screens, thereby realizing a one-to-many power supply management relationship between the power management module 2 and the display screens, thereby reducing the number of power management modules 2, reducing the occupied area of ​​the display screen power supply circuit, and reducing the cost of the electronic device.

[0110] Figure 5 is a timing diagram showing electrical signals of a control module and a supply voltage of a switching power supply according to an exemplary embodiment.

[0111] In some embodiments, the control module 4 may include a switching power supply 42, which may be a power supply for supplying power to the switching module. When the switching power supply 42 supplies power to the switching module, the switching module may receive a conduction signal from the control module 4, thereby changing the conduction state of the switch inside itself.

[0112] The processor 41 can control the switch power supply 42 to supply power to the switching module or stop supplying power.

[0113] Among them, Figure 5 As shown, before the switching module turns on the display screen and the power management module 2, the switching power supply 42 can start to supply power to the switching module; when the switching module turns off the display screen and the power management module 2, the switching power supply 42 can stop supplying power to the switching module.

[0114] For example, Figure 5As shown, before the switching module receives the first turn-on signal from the first signal path SW0 or the second turn-on signal from the second signal path SW1, the switching power supply 42 can start to supply power to the switching module; when the first turn-on signal from the first signal path SW0 or the second turn-on signal from the second signal path SW1 stops, and the switching module disconnects the display screen and the power management module 2, the switching power supply 42 can stop supplying power to the switching module.

[0115] When the switching power supply 42 supplies power to the switching module and the switching module controls the power management module 2 to supply power to the display screen at the same time, the current stability in the circuit is low, which will cause the display effect of the display screen to fluctuate. In order to prevent the display effect of the display screen from fluctuating, the switching power supply 42 supplies power before the power management module 2 and the switching power supply 42 is disconnected after the power management module 2, so that the voltage of the display screen is not affected during the display process and always remains stable, thereby ensuring the stability of the display effect of the display screen.

[0116] In some embodiments, the control module 4 may include: an enabler 43 .

[0117] One end of the enabler 43 may be connected to the control module 4, and the other end of the enabler 43 may be connected to the switch power supply 42. The control module 4 may send a high level signal to the enabler 43, and the enabler 43 controls the switch power supply 42 to supply power to the switching module after receiving the high level signal; the control module 4 may stop sending the high level signal to the enabler 43, and the enabler 43 may control the switch power supply 42 to stop supplying power to the switching module.

[0118] The processor 41 can control the switching power supply 42 to supply power to the switching module or stop supplying power through the enabler 43, so that the switching power supply 42 can supply power before the power management module 2 and be disconnected later than the power management module 2, so that the voltage of the display screen is not affected during the display process and always remains stable, thereby ensuring the stability of the display effect of the display screen.

[0119] The embodiment of the present disclosure controls the conduction relationship between the power management module 2 and multiple display screens by providing a switching module and a control module 4. A one-to-many power supply management relationship between the power management module 2 and the display screens is achieved, thereby reducing the number of power management modules 2, reducing the occupied area of ​​the display screen power supply circuit, and reducing the cost of the display component.

[0120] It is to be understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include plural forms, unless the context clearly indicates other meanings.

[0121] It is further understood that the terms "second", "secondary", etc. are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other and do not indicate a specific order or degree of importance. In fact, the expressions "secondary", "secondary", etc. can be used interchangeably. For example, without departing from the scope of the present disclosure, the second information may also be referred to as the second information, and similarly, the second information may also be referred to as the second information.

[0122] It will be further understood that the terms “center”, “longitudinal”, “lateral”, “front”, “back”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0123] It can be further understood that, unless otherwise specified, “connection” includes a direct connection without other components between the two, and also includes an indirect connection with other components between the two.

[0124] It is further understood that, although the operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring the operations to be performed in the specific order shown or in a serial order, or requiring the execution of all the operations shown to obtain the desired results. In certain environments, multitasking and parallel processing may be advantageous.

[0125] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following scope of rights.

[0126] It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims

1. An electronic device, characterized in that: The electronic device comprises: First display screen; Second display screen; A power management module, the power management module is used to supply power to the first display screen and the second display screen; A switching module, one end of which is connected to the power management module, and the other end of which is electrically connected to the first display screen and the second display screen respectively; A control module, the control module is connected to the switching module, The control module controls the switching module to connect the first display screen and the power management module, or to connect the second display screen and the power management module.

2. The electronic device according to claim 1, characterized in that: The power management module includes a plurality of power management ports; One end of the switching module is connected to the multiple power management ports respectively, and the other end of the switching module is connected to the first display screen and the second display screen respectively.

3. The electronic device according to claim 1, characterized in that: The control module transmits different electrical signals to the switching module so that the switching module conducts between the first display screen and the power management module, or conducts between the second display screen and the power management module.

4. The electronic device according to claim 2, characterized in that: The switching module includes a first path and a second path; The first end of the first passage and the first end of the second passage are both connected to the switching module; The second end of the first passage is connected to the first display screen, and the second end of the second passage is connected to the second display screen. Wherein, the control module sends a first conduction signal to the switching module to conduct the first display screen and the power management module; The control module sends a second conduction signal to the switching module to conduct the second display screen and the power management module.

5. The electronic device according to claim 4, characterized in that: The switching module includes a plurality of switching groups, and the switching groups correspond to the plurality of power management ports one by one; A first end of each of the switch groups is connected to the power management port, and a second end of each of the switch groups is connected to the first path and the second path. The control module sends a first conduction signal to the switch group, and the switch group conducts the first display screen and the power management module through the first path; The control module sends a second conduction signal to the switch group, and the switch group conducts the second display screen and the power management module through the second path.

6. The electronic device according to claim 5, characterized in that: The switching group includes one or more switches; The control module sends different conduction signals to the switch group, and the switch group changes the conduction state of the switch to conduct the first display screen and the power management module through the first path, or to conduct the second display screen and the power management module through the second path.

7. The electronic device according to claim 2, characterized in that: The switching module includes a first switch and a second switch; The power management port includes a first power supply port and a second power supply port, the first power supply port is connected to the first switch, and the second power supply port is connected to the second switch. Wherein, the impedance of the second switch is smaller than the impedance of the first switch; The current output by the second power supply port is greater than the current output by the first power supply port.

8. The electronic device according to claim 7, characterized in that: The first switch is a single-channel switch, and the second switch is a multi-channel switch.

9. The electronic device according to claim 7, characterized in that: The switch comprises a single-pole multi-throw switch; The power management port includes a signal port, and the signal port is connected to the single-pole multi-throw switch.

10. The electronic device according to claim 5, characterized in that: The electronic device includes a third display screen, and the switching module includes a third path; The first end of the third path is connected to the power management module, and the second end of the third path is connected to the third display screen. The control module sends a third conduction signal to the switch group, and the switch group conducts the third display screen and the power management module through the third path.

11. The electronic device according to claim 5, characterized in that: The control module simultaneously sends the first conduction signal and the second conduction signal to the switch group, and the switch group conducts the first display screen and the power management module through the first path, and the switch group also conducts the second display screen and the power management module through the second path. Wherein, the rated voltage of the first display screen is equal to the rated voltage of the second display screen.

12. The electronic device according to claim 1, characterized in that: The control module includes a processor, which is connected to the switching module and sends a conduction signal to the switching module.

13. The electronic device according to claim 12, characterized in that: The control module includes a switching power supply, and the processor controls the switching power supply to supply power to the switching module or stop supplying power. Wherein, before the switching module turns on the display screen and the power management module, the switching power supply starts to supply power to the switching module; When the switching module disconnects the display screen and the power management module, the switching power supply stops supplying power to the switching module.

14. The electronic device according to claim 13, characterized in that: The control module comprises: an enabler, one end of which is connected to the control module, and the other end of which is connected to the switch power supply, The processor controls the switch power supply to supply power to the switching module or to stop supplying power through the enabler.

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