Display screen refresh rate switching control method, display device and storage medium

Abstract

The embodiment of the invention relates to a display screen refresh rate switching control method, a display device and a storage medium, the method comprises the following steps: in response to starting a first refresh rate function of a display screen, closing an image display function of the display screen, the highest refresh rate under the first refresh rate function being greater than the highest refresh rate under a second refresh rate function; adjusting the refresh mode of the signal transmission device to the set target refresh mode; controlling the signal transmission device and the time schedule controller to be powered on again; adjusting the image refreshing format of the signal transmission device to the set target format; determining whether the state of the signal transmission device matches the first refresh rate function; if yes, controlling the display screen to restart the image display function. According to the embodiment of the invention, abnormal phenomena such as splash screen, self-inspection picture and gray screen of the display picture caused by the fact that the signal transmission device sends an unstable image signal to the time schedule controller during refresh rate function switching can be avoided, so that the stability of picture display is improved.

Description

Technical Field

[0001] The present application relates to the technical field of display panels, and in particular to a display screen refresh rate switching control method, a display device, and a storage medium. Background Art

[0002] With the development of display technology, the application scope of high refresh rate display devices is becoming more and more extensive. For example, the display screen of a high refresh rate split TV can be used as an output terminal for electronic games, providing users with a smoother viewing experience. Current display devices have widely used 4K+120Hz high refresh rate solutions, and even HSR288 high refresh rate TVs exist. The 288Hz first refresh rate function is based on HSR (Hardware Super Resolution) technology. The HSR288 high refresh rate mode can improve the stability of high-speed dynamic images and reduce jitter. Due to the complex control logic of the high refresh rate, when the display device switches from a low refresh rate function to a first refresh rate function (for example, switching from 120 / 240Hz to 144 / 288Hz), a reset action must be performed on the signal transmission device (for example, a split transmitting chip and a split receiving chip in a split TV). This will cause the image signal output by the signal transmission device to the timing controller (TCON, Timing Controller) on the screen end to become randomly unstable, and the TCON board on the screen end will work abnormally, resulting in abnormal screen problems such as flickering screen, self-test screen, gray and white screen, etc. The picture display is unstable, affecting the user experience. Summary of the invention

[0003] In view of this, in order to solve some or all of the above technical problems, the embodiments of the present application provide a display screen refresh rate switching control method, a display device and a storage medium.

[0004] In a first aspect, an embodiment of the present application provides a display screen refresh rate switching control method, the method comprising: in response to starting a first refresh rate function of the display screen, turning off an image display function of the display screen, wherein the highest refresh rate under the first refresh rate function is greater than the highest refresh rate under the second refresh rate function; adjusting the refresh mode of a signal transmission device to a set target refresh mode; controlling the signal transmission device and a timing controller to power on again; adjusting the image refresh format of the signal transmission device to a set target format; determining whether the state of the signal transmission device matches the first refresh rate function; if matched, controlling the display screen to restart the image display function.

[0005] In one possible embodiment, determining whether the state of the signal transmission device matches the first refresh rate function includes: determining whether the current refresh rate state of the signal transmission device matches the first refresh rate function, and whether the timing controller has locked the image signal received from the signal transmission device; if the refresh rate state does not match the first refresh rate function, and / or the display screen does not lock the image signal received from the signal transmission device, it is determined that the state of the signal transmission device does not match the first refresh rate function.

[0006] In one possible implementation, after determining whether the state of the signal transmission device matches the first refresh rate function, the method further includes: if not, restarting from the step of adjusting the refresh mode of the signal transmission device to the set target refresh mode, and looping N times.

[0007] In a possible implementation, after re-starting from the step of adjusting the refresh mode of the signal transmission device to the set target refresh mode and looping N times, the method further includes: controlling the display screen to restart the image display function.

[0008] In a possible implementation, the control signal transmission device and the timing controller are powered on again, including: the control signal transmission device and the timing controller are powered off and wait for a first preset time; the control signal transmission device and the timing controller are powered on and wait for a second preset time.

[0009] In a possible implementation, turning off the image display function of the display screen includes: controlling the backlight of the display screen to turn off.

[0010] In a second aspect, an embodiment of the present application provides a display device, which includes: a main controller, a signal transmission device, a timing controller and a display screen, the timing controller is arranged on the display screen, the main controller is connected to the signal transmission device, and the display screen is connected to the signal transmission device; the main controller is used to execute the display screen refresh rate switching control method described in the first aspect above.

[0011] In a possible implementation, the main controller is further used to: adjust the level of the mode selection pin of the signal transmission device to a level corresponding to the set target refresh mode, so that the refresh mode of the signal transmission device is adjusted to the set target refresh mode.

[0012] In one possible embodiment, the signal transmission device includes a split sending device and a split receiving device, the main controller, the split sending device, the split receiving device and the timing controller are connected in sequence, and the power output end of the split receiving device is connected to the power input end of the timing controller; the main controller is also used to: send a power-off control instruction to the split sending device and the split receiving device, so that the split sending device, the split receiving device and the timing controller are powered off, and wait for a first preset time length; send a power-on control instruction to the split sending device and the split receiving device, so that the split sending device, the split receiving device and the timing controller are powered on, and wait for a second preset time length.

[0013] In a third aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, a method as in any embodiment of the display refresh rate switching control method of the first aspect described above is implemented.

[0014] In a fourth aspect, an embodiment of the present application provides a computer program, which includes a computer readable code. When the computer readable code runs on a device, the processor in the device implements a method as described in any embodiment of the display refresh rate switching control method of the first aspect above.

[0015] The display screen refresh rate switching control method, display device and storage medium provided in the embodiment of the present application, when starting the first refresh rate function of the display screen, first turn off the image display function of the display screen, then adjust the refresh mode of the signal transmission device to the high refresh rate mode, then control the signal transmission device and the timing controller to power on again, and adjust the image refresh format of the signal transmission device to the set target format, and finally control the display screen to restart the image display function when it is determined that the state of the signal transmission device matches the first refresh rate function. The embodiment of the present application realizes that when the display device switches to a high refresh rate, the image display function is temporarily turned off, and the image display function is turned on again after the signal transmission device and the timing controller are successfully reset, so as to avoid abnormal phenomena such as screen flickering, self-test screen, gray-white screen, etc. caused by the signal transmission device sending unstable image signals to the timing controller when the first refresh rate function is switched, thereby improving the stability of the screen display. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0019] Figure 1 A schematic diagram of a flow chart of a display screen refresh rate switching control method provided in an embodiment of the present application;

[0020] Figure 2 A schematic flow chart of another display screen refresh rate switching control method provided in an embodiment of the present application;

[0021] Figure 3 A flowchart of another display screen refresh rate switching control method provided in an embodiment of the present application;

[0022] Figure 4 A flowchart of another display screen refresh rate switching control method provided in an embodiment of the present application;

[0023] Figure 5 A schematic diagram of the structure of a display screen refresh rate switching control device provided in an embodiment of the present application;

[0024] Figure 6 A schematic diagram of the structure of a display device provided in an embodiment of the present application;

[0025] Figure 7 A schematic diagram of the structure of another display device provided in an embodiment of the present application;

[0026] Figure 8 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the numerical expressions and the numerical values ​​described in these embodiments do not limit the scope of the present application.

[0028] Those skilled in the art will understand that the terms "first" and "second" in the embodiments of the present application are only used to distinguish between different steps, devices, modules and other objects, and do not represent any specific technical meanings, nor do they indicate the logical order between them.

[0029] It should also be understood that in this embodiment, “plurality” may refer to two or more than two, and “at least one” may refer to one, two or more than two.

[0030] It should also be understood that any component, data or structure mentioned in the embodiments of the present application can generally be understood as one or more, unless explicitly limited or otherwise indicated in the context.

[0031] In addition, the term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0032] It should also be understood that the description of the various embodiments in this application focuses on the differences between the various embodiments, and the same or similar aspects thereof can be referenced to each other, and for the sake of brevity, they will not be described one by one.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0034] Technologies, circuits, and devices known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the above-mentioned technologies, circuits, and devices should be considered as part of the specification.

[0035] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0036] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. To facilitate the understanding of the embodiments of the present application, the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0037] In order to solve the technical problems of flickering display screen, gray-white screen, etc. that are prone to occur when the display device in the prior art switches to the first refresh rate function, the present application provides a display refresh rate switching control method, which can temporarily turn off the image display function when the display device switches to the first refresh rate function to avoid unstable image display on the display screen.

[0038] Figure 1 A flow chart of a display screen refresh rate switching control method provided for an embodiment of the present application. This method can be applied to a display device and executed by a main controller and other components in the display device. In addition, the execution subject of this method can be hardware or software. When the above-mentioned execution subject is hardware, the execution subject can be one or more electronic devices. For example, a single electronic device can execute this method, or multiple electronic devices can cooperate with each other to execute this method. When the above-mentioned execution subject is software, this method can be implemented as multiple software or software modules, or as a single software or software module. No specific limitation is made here.

[0039] like Figure 1 As shown, the method specifically includes:

[0040] Step 101: in response to starting a first refresh rate function of a display screen, turning off an image display function of the display screen.

[0041] In some embodiments, the maximum refresh rate under the first refresh rate function is greater than the maximum refresh rate under the second refresh rate function. As an example, the first refresh rate function may be the HSR 288Hz function, that is, when the first refresh rate function is turned on, the refresh rate of the display screen may be adjusted to a maximum of 288Hz. The second refresh rate function is the low refresh rate function, that is, when the second refresh rate function is turned on, the maximum refresh rate of the display screen is less than 288Hz, for example, a maximum of 120Hz.

[0042] After starting the first refresh rate function of the display screen, the image display function is turned off first, for example, the backlight of the display screen is turned off, or the image signal is stopped from being sent to the timing controller, so that the screen of the display screen appears black.

[0043] Step 102: Adjust the refresh mode of the signal transmission device to a set target refresh mode.

[0044] In some embodiments, the signal transmission device is used to transmit the image signal sent by the main controller in the display device to the timing controller in the display screen. For example, if the display device is a split display device, the signal transmission device may include a split transmission chip and a split receiving chip.

[0045] The refresh mode of the signal transmission device may correspond to the currently set refresh rate, that is, the refresh mode of the signal transmission device is adjusted accordingly according to the set refresh rate. For example, the refresh mode of the signal transmission device includes a first mode and a second mode, the refresh rate corresponding to the first mode is 120 or 240 Hz, and the refresh rate corresponding to the second mode is 144 or 288 Hz. The target refresh mode is the refresh mode adjusted according to the currently set refresh rate.

[0046] There are many ways to switch the refresh mode, for example, it can be achieved by the level of the IO (Input / Output) port of the signal transmission device, or by sending a mode switching instruction to the signal transmission device.

[0047] Step 103, the control signal transmission device and the timing controller are powered on again.

[0048] In some embodiments, an electronic device (e.g., a main controller) executing the present method may send a restart instruction to the signal transmission device and the timing controller, or control a power module in the display device to power off and then power on the signal transmission device and the timing controller, thereby completing the power-on operation.

[0049] Step 104: adjust the image refresh format of the signal transmission device to the set target format.

[0050] In some embodiments, the image refresh format may include multiple, different image refresh formats, including corresponding image resolutions and refresh rates. For example, the image output by the signal transmission device has four formats: 4k*2k120Hz, 4k*2k144Hz, 4k*1k 240Hz, 4k*1k 288Hz. The main controller may send a format adjustment instruction to the signal transmission device through the I2C (Inter-Integrated Circuit) bus according to the refresh rate and resolution selected by the user, and adjust the image refresh format of the signal transmission device to the set target format.

[0051] Step 105, determining whether the state of the signal transmission device matches the first refresh rate function.

[0052] In some embodiments, the state of the signal transmission device is used to support the execution of the first refresh rate function. For example, if the signal transmission rate of the signal transmission device matches the first refresh rate, it is determined that the state of the signal transmission device matches the first refresh rate function. The signal transmission device can generate identification information indicating the current state, and the main control can read the identification information to determine whether the state of the signal transmission device matches the first refresh rate function.

[0053] Step 106: If a match is found, the display screen is controlled to restart the image display function.

[0054] In some embodiments, if the state of the signal transmission device matches the first refresh rate function, the image display function can be started, that is, the backlight is turned on, and the signal transmission device sends an image signal to the timing controller.

[0055] The display screen refresh rate switching control method provided in the embodiment of the present application is to first turn off the image display function of the display screen when starting the first refresh rate function of the display screen, then adjust the refresh mode of the signal transmission device to the high refresh rate mode, then control the signal transmission device and the timing controller to power on again, and adjust the image refresh format of the signal transmission device to the set target format, and finally control the display screen to restart the image display function when it is determined that the state of the signal transmission device matches the first refresh rate function. The embodiment of the present application realizes that when the display device switches to a high refresh rate, the image display function is temporarily turned off, and the image display function is turned on again after the signal transmission device and the timing controller are successfully reset, so as to avoid abnormal phenomena such as screen flickering, self-test screen, gray-white screen, etc. caused by the signal transmission device sending unstable image signals to the timing controller when the first refresh rate function is switched, thereby improving the stability of the screen display.

[0056] In some optional implementations, such as Figure 2 As shown, step 105 includes:

[0057] Step 1051 , determining whether the current refresh rate state of the signal transmission device matches the first refresh rate function, and whether the timing controller has locked the image signal received from the signal transmission device.

[0058] The refresh rate state may include a high refresh state and a low refresh state. In the high refresh state, the signal transmission device may support the transmission of a high refresh rate signal (e.g., 288 Hz), and in the low refresh state, the signal transmission device may only support the transmission of a low refresh rate signal (e.g., 120 Hz). If the first refresh rate function is a high refresh rate function, and the state of the signal transmission device is in a high refresh state, it is determined that the current refresh rate state of the signal transmission device matches the first refresh rate function.

[0059] If the timing controller receives a complete frame of image signal, it will lock the frame of image signal. After locking the image signal, a lock mark will be generated, and the timing controller can feed back the lock mark to the main controller, and the main controller can determine whether to lock the received frame of image.

[0060] Step 1052: If the refresh rate state does not match the first refresh rate function, and / or the display screen is not locked to the image signal received from the signal transmission device, it is determined that the state of the signal transmission device does not match the first refresh rate function.

[0061] Correspondingly, if the refresh rate state does not match the first refresh rate function, and the timing controller has locked the received image signal, the state of the signal transmission device matches the first refresh rate function.

[0062] Step 1053: If the refresh rate state matches the first refresh rate function, and / or the display screen is not locked to the image signal received from the signal transmission device, it is determined that the state of the signal transmission device does not match the first refresh rate function.

[0063] This embodiment determines the current refresh rate state of the signal transmission device and the locking state of the image signal by the timing controller, so that the display screen can start the image display function in a more ideal state, ensuring that the signal transmission device and the timing controller can stably transmit and process the image signal, thereby further improving the stability of the image display.

[0064] In some optional implementations, such as Figure 3 As shown, after step 105, the method further includes:

[0065] Step 107: If there is no match, start again from the step of adjusting the refresh mode of the signal transmission device to the set target refresh mode, and repeat N times.

[0066] Wherein, N is a preset positive integer, such as 3. That is, if it is determined that the state of the signal transmission device does not match the first refresh rate function, step 102 to step 105 are executed again in a loop until the state of the signal transmission device matches the first refresh rate function, or after completing the loop N times, the loop is exited.

[0067] This embodiment re-executes steps 102-105 and sets an upper limit on the number of cycles when it is determined that the state of the signal transmission device does not match the first refresh rate function. This allows the display screen to receive image signals and display images in the optimal state, further reducing the risk of abnormal phenomena such as screen flickering when the first refresh rate function is turned on, and improving the stability of image display.

[0068] In some optional implementations, such as Figure 3 As shown, after step 107, the electronic device executing the method can control the display screen to restart the image display function. That is, after completing N cycles, regardless of whether the state of the signal transmission device matches the first refresh rate function, step 106 is continued. At this time, the display device may have a hardware failure, causing the signal transmission device and the timing controller to be unable to support the execution of the first refresh rate function.

[0069] Optionally, fault prompt information may be output (for example, displaying the fault prompt information on a display screen, outputting the fault prompt information by playing audio, etc.) to prompt the user that a hardware failure may currently occur.

[0070] This embodiment continues to execute the image display function when it is repeatedly determined that the state of the signal transmission device does not match the first refresh rate function, thereby avoiding the display screen from continuously executing the method and causing the picture to be unable to be displayed, which helps the user to accurately know the current state of the display device.

[0071] In some optional implementations, such as Figure 4 As shown, step 103 includes:

[0072] Step 1031, power off the control signal transmission device and the timing controller, and wait for a first preset time.

[0073] The first preset duration can be set according to actual needs. For example, in a split display device, the time interval between powering off and then powering on the TCON board of the display screen needs to be greater than 1 second to ensure that the TCON board works normally. Therefore, after the control signal transmission device and the timing controller are powered off, wait for 1.2 seconds before powering on the control signal transmission device and the timing controller.

[0074] Step 1032, power on the control signal transmission device and the timing controller, and wait for a second preset time.

[0075] The second preset duration can be set according to actual needs. For example, in a split display device, after the split transmitting chip and the split receiving chip are powered on, it takes about 1.5 seconds to complete the initialization. In order to ensure that the split transmitting chip and the split receiving chip are powered on and initialized before receiving the command sent by the main controller, the split transmitting chip, the split receiving chip and the TCON board are powered on, and after waiting for 2 seconds, the subsequent step 104 is executed.

[0076] This embodiment adds a certain delay time when the control signal transmission device and the timing controller are powered on again, thereby ensuring that the state required for transmitting the image signal can be achieved after the control signal transmission device and the timing controller are powered on again, thereby further improving the stability of the image display.

[0077] In some optional implementations, the above step 101 includes:

[0078] The control display backlight goes out.

[0079] That is, the main controller sends a shutdown command to the backlight driving module of the display screen to turn off the backlight of the display screen, thereby ensuring that the display screen cannot display images, that is, abnormal phenomena such as screen flickering will not occur, thereby improving display stability.

[0080] Figure 5 A schematic diagram of the structure of a display screen refresh rate switching control device provided in an embodiment of the present application. Specifically comprising:

[0081] A closing module 501, configured to close an image display function of the display screen in response to starting a first refresh rate function of the display screen, wherein the highest refresh rate under the first refresh rate function is greater than the highest refresh rate under the second refresh rate function;

[0082] A first adjustment module 502, configured to adjust a refresh mode of the signal transmission device to a set target refresh mode;

[0083] A first control module 503, used to control the signal transmission device and the timing controller to power on again;

[0084] A second adjustment module 504, used to adjust the image refresh format of the signal transmission device to a set target format;

[0085] A determination module 505, configured to determine whether the state of the signal transmission device matches the first refresh rate function;

[0086] The second control module 506 is used to control the display screen to restart the image display function if a match is found.

[0087] In some optional implementations, the determination module includes: a first determination unit, used to determine whether the current refresh rate state of the signal transmission device matches the first refresh rate function, and whether the timing controller has locked the image signal received from the signal transmission device; a second determination unit, used to determine that the state of the signal transmission device does not match the first refresh rate function if the refresh rate state does not match the first refresh rate function, and / or the display screen has not locked the image signal received from the signal transmission device.

[0088] In some optional implementations, the device further includes: an execution module, configured to, if there is no match, restart from the step of adjusting the refresh mode of the signal transmission device to the set target refresh mode, and execute the step in a loop N times.

[0089] In some optional implementations, the execution module is further used to: control the display screen to restart the image display function.

[0090] In some optional implementations, the first control module includes: a first control unit, used to control the signal transmission device and the timing controller to power off and wait for a first preset time; a second control unit, used to control the signal transmission device and the timing controller to power on and wait for a second preset time.

[0091] In some optional implementations, the shutdown module is further used to: control the backlight of the display screen to turn off.

[0092] The display screen refresh rate switching control device provided in this embodiment can be as follows Figure 5The display refresh rate switching control device shown in can execute all steps of the above display refresh rate switching control methods, thereby achieving the technical effects of the above display refresh rate switching control methods. Please refer to the above related description for details. For the sake of brevity, it will not be repeated here.

[0093] Figure 6 A structural schematic diagram of a display device provided in an embodiment of the present application, the display device includes: a main controller 601, a signal transmission device 602, a timing controller 603 and a display screen 604, the timing controller 603 is arranged on the display screen 604, the main controller 601 is connected to the signal transmission device 602, and the display screen 604 is connected to the signal transmission device 602.

[0094] The display device may be a television, a computer monitor, or the like. The signal transmission device 602 may receive image signals, audio signals, and the like sent by the main controller 601, and send these signals to the display screen 604. As an example, when the display device is a split display device (e.g., a split television), the signal transmission device 602 may include a split transmission chip and a split reception chip, and the two chips are connected via a connector and a wiring harness. The split transmission chip is disposed on the host, and the split reception chip is disposed on the display screen 604.

[0095] The image signal may be sent to the timing controller 603 and other components on the display screen 604 to drive the display screen 604 to display the image. The sound signal may be sent to the audio output device on the display screen 604, and the audio output device may emit sound.

[0096] The main controller 601 is used to execute the above-mentioned refresh rate switching control method of the display screen 604. The main controller 601 can monitor in real time whether the user chooses to start the first refresh rate function. When the first refresh rate function is started, the refresh rate switching control method of the display screen 604 can be executed, and during the execution process, the signal transmission device 602 and the timing controller 603 are controlled.

[0097] The display device provided by the embodiment of the present application is implemented by a main controller to execute the above display screen refresh rate switching control method, and during the execution process, the main controller controls the signal transmission device and the timing controller. The embodiment of the present application realizes that when the display device switches to a high refresh rate, the image display function is temporarily turned off, and the image display function is turned on again after the signal transmission device and the timing controller are successfully reset, so as to avoid abnormal phenomena such as screen flickering, self-test screen, gray-white screen, etc. caused by the signal transmission device sending an unstable image signal to the timing controller when the first refresh rate function is switched, thereby improving the stability of the screen display.

[0098] In some optional implementations, the main controller 601 is further configured to:

[0099] The level of the mode selection pin of the signal transmission device 602 is adjusted to a level corresponding to the set target refresh mode, so that the refresh mode of the signal transmission device 602 is adjusted to the set target refresh mode.

[0100] Specifically, the mode selection pin of the signal transmission device 602 is connected to a certain IO port of the main controller 601. The refresh mode of the signal transmission device 602 can correspond to the currently set refresh rate, that is, according to the set refresh rate, the refresh mode of the signal transmission device 602 is adjusted accordingly. For example, the refresh mode of the signal transmission device 602 includes a first mode and a second mode. The refresh corresponding to the first mode is 120 or 240Hz, and the refresh rate corresponding to the second mode is 144 or 288Hz. The target refresh mode is a refresh mode adjusted according to the currently set refresh rate. The first mode can correspond to a high level, and the second mode can correspond to a low level. If the currently selected refresh rate is 144 or 288Hz, the level of the above-mentioned mode selection pin is adjusted to a low level.

[0101] In this embodiment, by setting a corresponding level for the mode selection pin of the signal transmission device, the refresh mode of the signal transmission device can be set quickly and accurately, thereby improving the efficiency of switching the refresh rate of the display device.

[0102] In some optional implementations, such as Figure 7 As shown, the signal transmission device 602 includes a split sending device 6021 and a split receiving device 6022. The main controller 601, the split sending device 6021, the split receiving device 6022 and the timing controller 603 are connected in sequence, and the power output end of the split receiving device 6022 is connected to the power input end of the timing controller 603.

[0103] Optionally, if the display device is a split display device, the split sending device 6021 (which can be a sending chip) can be set on the main board of the host together with the main controller 601, and the split receiving device 6022 (which can be a receiving chip) can be set in the display screen 604 together with the timing controller 603. The split sending device 6021 and the split receiving device 6022 are connected through a connector and a harness. The main controller 601 and the split sending device 6021 can transmit image signals through the image signal transmission port, transmit level signals (for example, for switching the refresh mode of the split sending device 6021 and the split receiving device 6022) through the IO port, and transmit control instructions through the bus (for example, I2C bus) port.

[0104] The main controller 601 is also used for:

[0105] A power-off control instruction is sent to the split sending device 6021 and the split receiving device 6022, so that the split sending device 6021, the split receiving device 6022 and the timing controller 603 are powered off and wait for a first preset time period; a power-on control instruction is sent to the split sending device 6021 and the split receiving device 6022, so that the split sending device 6021, the split receiving device 6022 and the timing controller 603 are powered on and wait for a second preset time period.

[0106] The power-off control instruction and the power-on control instruction can be transmitted through the bus (e.g., I2C bus) port between the main controller 601 and the split transmitting device 6021. Since the power input end of the timing controller 603 is connected to the power output end of the split receiving device 6022, the timing controller 603 can be controlled to be powered on again while controlling the split receiving device 6022 to be powered on again.

[0107] The steps performed by the main controller in this embodiment are the same as those described above. Figure 4 The steps described in the corresponding embodiments are basically the same and will not be repeated here. In this embodiment, when the control signal transmission device and the timing controller are powered on again, a certain delay time is added to ensure that after the control signal transmission device and the timing controller are powered on again, the state required for transmitting the image signal can be achieved, thereby further improving the stability of the image display.

[0108] Figure 8 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application, Figure 8 The electronic device 800 shown includes: at least one processor 801, a memory 802, at least one network interface 804 and other user interfaces 803. The various components in the electronic device 800 are coupled together via a bus system 805. It is understood that the bus system 805 is used to achieve connection and communication between these components. In addition to the data bus, the bus system 805 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, the bus system 805 is not described in detail. Figure 8 Various buses are labeled as bus system 805 .

[0109] The user interface 803 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touch pad, or a touch screen).

[0110] It can be understood that the memory 802 in the embodiment of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 802 described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0111] In some implementations, the memory 802 stores the following elements, executable units or data structures, or a subset thereof, or an extended set thereof: an operating system 8021 and an application program 8022 .

[0112] The operating system 8021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., which are used to implement various basic services and process hardware-based tasks. The application 8022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services. The program for implementing the method of the embodiment of the present application can be included in the application 8022.

[0113] In this embodiment, by calling the program or instruction stored in the memory 802, specifically, the program or instruction stored in the application 8022, the processor 801 is used to execute the method steps provided by each method embodiment, for example, including:

[0114] In response to starting the first refresh rate function of the display screen, turning off the image display function of the display screen, wherein the highest refresh rate under the first refresh rate function is greater than the highest refresh rate under the second refresh rate function; adjusting the refresh mode of the signal transmission device to the set target refresh mode; controlling the signal transmission device and the timing controller to power on again; adjusting the image refresh format of the signal transmission device to the set target format; determining whether the state of the signal transmission device matches the first refresh rate function; if matched, controlling the display screen to restart the image display function.

[0115] The method disclosed in the above embodiment of the present application can be applied to the processor 801, or implemented by the processor 801. The processor 801 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 801. The above processor 801 can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to execute, or the hardware and software units in the decoding processor can be executed. The software unit can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802 and completes the steps of the above method in combination with its hardware.

[0116] It is understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit may be implemented in one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPDevice, DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the above functions of the present application, or a combination thereof.

[0117] For software implementation, the technology described above in this article can be implemented by a unit that performs the functions described above in this article. The software code can be stored in a memory and executed by a processor. The memory can be implemented in the processor or outside the processor.

[0118] The electronic device provided in this embodiment may be Figure 8 The electronic device shown in can execute all the steps of the above-mentioned display screen refresh rate switching control method, thereby achieving the technical effects of the above-mentioned display screen refresh rate switching control method. Please refer to the above related description for details. For the sake of brevity, it will not be repeated here.

[0119] The embodiment of the present application also provides a storage medium (computer-readable storage medium). The storage medium here stores one or more programs. The storage medium may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a read-only memory, a flash memory, a hard disk or a solid-state drive; the memory may also include a combination of the above-mentioned types of memory.

[0120] When one or more programs in the storage medium can be executed by one or more processors, the display screen refresh rate switching control method executed on the electronic device side can be implemented.

[0121] The processor is used to execute the program stored in the memory to implement the following steps of the display screen refresh rate switching control method executed on the electronic device side:

[0122] In response to starting the first refresh rate function of the display screen, turning off the image display function of the display screen, wherein the highest refresh rate under the first refresh rate function is greater than the highest refresh rate under the second refresh rate function; adjusting the refresh mode of the signal transmission device to the set target refresh mode; controlling the signal transmission device and the timing controller to power on again; adjusting the image refresh format of the signal transmission device to the set target format; determining whether the state of the signal transmission device matches the first refresh rate function; if matched, controlling the display screen to restart the image display function.

[0123] The professionals should further realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different circuits to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0124] The steps of the circuits or algorithms described in conjunction with the embodiments disclosed herein may be implemented using hardware, software modules executed by a processor, or a combination of the two. The software modules may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0125] It should be understood that the terms used in the text are only for the purpose of describing specific example embodiments, and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used in the text may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The steps, processes, and operations described in the text are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0126] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A display screen refresh rate switching control method, characterized in that: The method comprises: In response to starting a first refresh rate function of the display screen, turning off an image display function of the display screen, wherein a maximum refresh rate under the first refresh rate function is greater than a maximum refresh rate under the second refresh rate function; Adjusting the refresh mode of the signal transmission device to a set target refresh mode; Controlling the signal transmission device and the timing controller to power on again; Adjusting the image refresh format of the signal transmission device to a set target format; determining whether a state of the signal transmission device matches the first refresh rate function; If they match, the display screen is controlled to restart the image display function.

2. The method according to claim 1, characterized in that The determining whether the state of the signal transmission device matches the first refresh rate function includes: determining whether a current refresh rate state of the signal transmission device matches the first refresh rate function, and whether the timing controller has locked an image signal received from the signal transmission device; If the refresh rate state does not match the first refresh rate function, and / or the display screen is not locked to the image signal received from the signal transmission device, it is determined that the state of the signal transmission device does not match the first refresh rate function.

3. The method according to claim 1, characterized in that After determining whether the state of the signal transmission device matches the first refresh rate function, the method further includes: If not, start again from the step of adjusting the refresh mode of the signal transmission device to the set target refresh mode, and repeat N times.

4. The method according to claim 3, characterized in that After the step of re-adjusting the refresh mode of the signal transmission device to the set target refresh mode is looped and executed N times, the method further includes: The display screen is controlled to restart the image display function.

5. The method according to claim 1, characterized in that The controlling the signal transmission device and the timing controller to power on again includes: Controlling the signal transmission device and the timing controller to power off and wait for a first preset time period; The signal transmission device and the timing controller are controlled to be powered on, and wait for a second preset time period.

6. The method according to claim 1, characterized in that The step of turning off the image display function of the display screen includes: Control the backlight of the display screen to turn off.

7. A display device, characterized in that: The display device comprises: a main controller, a signal transmission device, a timing controller and a display screen, wherein the timing controller is arranged on the display screen, the main controller is connected to the signal transmission device, and the display screen is connected to the signal transmission device; The main controller is used to execute the display screen refresh rate switching control method described in any one of claims 1-6.

8. The display device according to claim 7, characterized in that The main controller is also used for: The level of the mode selection pin of the signal transmission device is adjusted to a level corresponding to the set target refresh mode, so that the refresh mode of the signal transmission device is adjusted to the set target refresh mode.

9. The display device according to claim 7, characterized in that: The signal transmission device comprises a split sending device and a split receiving device, the main controller, the split sending device, the split receiving device and the timing controller are connected in sequence, and the power output end of the split receiving device is connected to the power input end of the timing controller; The main controller is also used for: Sending a power-off control instruction to the split sending device and the split receiving device, so that the split sending device, the split receiving device and the timing controller are powered off, and waiting for a first preset time length; A power-on control instruction is sent to the split sending device and the split receiving device to power on the split sending device, the split receiving device and the timing controller, and wait for a second preset time.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the display screen refresh rate switching control method described in any one of claims 1 to 8 is implemented.

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