Panel display switching circuit, panel display switching method, and display panel

Abstract

The application discloses a panel display switching circuit, a panel display switching method and a display panel. The panel display switching circuit comprises a switching signal module, a switching control circuit and a panel display module. The switching signal module is configured to output a corresponding frame frequency switching signal to the switching control circuit in response to a display switching instruction. The display switching instruction is used to switch a current picture frame frequency of a to-be-displayed panel. The switching control circuit is configured to generate a target frame frequency signal according to the frame frequency switching signal and output the target frame frequency signal to the panel display module. The panel display module is configured to generate a display driving signal according to the target frame frequency signal, so as to drive the to-be-displayed panel to switch the current picture frame frequency to a target picture frame frequency for display. The application solves the technical problem of poor switching flexibility of the display mode of the display panel.

Description

Technical Field

[0001] This application relates to the field of display panel technology, and in particular to a panel display switching circuit, a panel display switching method, and a display panel. Background Technology

[0002] With the continuous development of display panel technology, users have increasingly higher requirements for the PQ (Picture-Quality) effect of the panels, making the use of high refresh rate display panels an industry trend. Currently, due to the different quality requirements of different customers for display panels, display panel manufacturers usually make high refresh rate panels compatible with low refresh rate panels to avoid wasting resources. That is, the same display panel can be compatible with multiple display modes under different refresh rates. When it is necessary to switch the working mode of the display panel, the display mode can be manually switched to improve the utilization rate of panel resources. For example, when a high refresh rate panel cannot meet the needs of high-specification customers, the refresh rate specification of the panel can be manually reduced through rework to ship to low-specification customers. However, currently, switching display modes usually requires manual intervention. At the same time, after switching, the driver hardware that drives the display panel to display, such as the source driver chip and SOC (System on Chip), will be fixed in the switched display mode. Therefore, the flexibility of switching display modes of current display panels is poor. Summary of the Invention

[0003] The main objective of this application is to provide a panel display switching circuit, a panel display switching method, and a display panel, aiming to solve the technical problem of poor flexibility in switching display modes of the display panel in the prior art.

[0004] The main objective of this application is to provide a panel display switching circuit, which aims to improve the flexibility of switching display modes when it is necessary to switch the working mode of the display panel.

[0005] A switching signal module is used to output a corresponding frame rate switching signal to the switching control circuit in response to a display switching command, wherein the display switching command is used to switch the current frame rate of the panel to be displayed;

[0006] A switching control circuit is used to generate a target frame frequency signal based on the frame frequency switching signal and output the target frame frequency signal to the panel display module.

[0007] The panel display module is used to generate a display driving signal based on the target frame rate signal, so as to drive the panel to be displayed to switch the current frame rate to the target frame rate for display.

[0008] Optionally, the switching control circuit includes:

[0009] A screen driver board, the output of which is connected to the input of a frame rate adjustment circuit, is used to generate a frame rate control signal based on the frame rate switching signal and output the frame rate control signal to the frame rate adjustment circuit.

[0010] A frame rate adjustment circuit, the output of which is connected to the input of the source driver board, is used to adjust the frame rate control signal to obtain the target frame rate signal and output the target frame rate signal to the source driver board.

[0011] A source driver board, the output terminal of which is connected to the input terminal of the panel display module, is used to output the target frame rate signal to the panel display module. The source driver board includes a first source driver board and a second source driver board.

[0012] Optionally, the frame rate adjustment circuit is disposed on the screen driver board, and the output terminal of the frame rate adjustment circuit includes a first output terminal and a second output terminal. The first output terminal is connected to the input terminal of the first source driver board, and the second output terminal is connected to the input terminal of the second source driver board.

[0013] Optionally, the frame rate adjustment circuit is disposed on the first source driver board or the second source driver board, and the output terminal of the frame rate adjustment circuit is connected to the input terminal of the first source driver board or the input terminal of the second source driver board.

[0014] Optionally, the frame rate adjustment circuit includes a first frame rate adjustment circuit and a second frame rate adjustment circuit. The first frame rate adjustment circuit is disposed on the first source driver board, and the second frame rate adjustment circuit is disposed on the second source driver board. The output terminal of the screen driver board includes a third output terminal and a fourth output terminal. The third output terminal is connected to the input terminal of the first frame rate adjustment circuit, and the fourth output terminal is connected to the input terminal of the second frame rate adjustment circuit. The output terminal of the first frame rate adjustment circuit is connected to the input terminal of the first source driver board, and the output terminal of the second frame rate adjustment circuit is connected to the input terminal of the second source driver board.

[0015] Optionally, the frame rate adjustment circuit includes a MOSFET and a current-limiting resistor. The MOSFET includes an N-type MOSFET and a P-type MOSFET, and the current-limiting resistor includes a first resistor and a second resistor.

[0016] Optionally, the frame frequency switching signal includes a first frame frequency switching signal and a second frame frequency switching signal. When the frame frequency switching signal is switched from the first frame frequency signal to the second frame frequency signal, the MOS transistor is in the on state. When the frame frequency switching signal is switched from the second frame frequency signal to the first frame frequency signal, the MOS transistor is in the off state.

[0017] Optionally, the target frame frequency signal includes a frame frequency GOA timing signal and a frame frequency data timing signal.

[0018] To achieve the above objectives, this application also provides a panel display switching method, the panel display switching method comprising:

[0019] When a display switching command corresponding to the panel to be displayed is detected, a frame rate switching signal corresponding to the display switching command is obtained, wherein the display switching command is used to switch the current frame rate of the panel to be displayed;

[0020] Generate a target frame rate signal based on the frame rate switching signal;

[0021] The panel to be displayed is driven to display the image at the target frame rate corresponding to the target frame rate signal.

[0022] This application also provides a display panel, which includes the panel display switching circuit described above, and will not be repeated here.

[0023] The technical solution of this application comprises a panel display switching circuit consisting of a switching signal module, a switching control circuit, and a panel display module. In this circuit, the switching signal module responds to a display switching command by outputting a corresponding frame rate switching signal to the switching control circuit. The display switching command is used to switch the current frame rate of the panel to be displayed. The switching control circuit generates a target frame rate signal based on the frame rate switching signal and outputs the target frame rate signal to the panel display module. The panel display module generates a display driving signal based on the target frame rate signal to drive the panel to switch its current frame rate to the target frame rate for display. This achieves the goal of automatically controlling the display panel to switch its operating mode in response to the frame rate switching signal, eliminating the need for manual intervention when switching display modes. Therefore, the driving hardware that drives the display panel will flexibly operate in the new display mode after the switch, thereby improving the flexibility of the display panel's display mode switching. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the circuit module for the panel display switching circuit of this application;

[0027] Figure 2 This is a schematic diagram of the operation of the display driver hardware of the panel to be displayed in the 120Hz display mode of this application;

[0028] Figure 3 This is a schematic diagram illustrating the operation of the display driver hardware for the panel to be displayed in 60Hz display mode.

[0029] Figure 4 A schematic diagram of the circuit structure of the switching control circuit of the screen driver board for setting the frame rate adjustment circuit of this application;

[0030] Figure 5 This is a schematic diagram of the switching control circuit of the frame rate adjustment circuit in this application, which is located on the left source drive board.

[0031] Figure 6 This is a schematic diagram of the circuit structure of the switching control circuit of the frame rate adjustment circuit of this application, which is set on the left source driver board and the right source driver board.

[0032] Figure 7 This is a flowchart illustrating the panel display method of this application.

[0033] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0034] Explanation of icon numbers:

[0035] label name label name 100 Panel display switching VIN Ideal power supply 200 Switching signal module R1 First resistor 300 Switching control circuit R2 Second resistor 400 Source driver chip array Q MOSFET 500 Panel to be displayed L1 First Cable 600 Panel display module L2 Second cable

[0036] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1

[0039] First, it should be understood that with the development of technology, ultra-thin smart devices are increasingly favored by users in the market. For display panel manufacturers, reducing the thickness of display panels to become more competitive has become an important direction for technological breakthroughs. Taking smart TVs as an example, currently, smart TVs are limited by the height of the complex components between the display panel and the back panel, making it difficult to achieve a thinner and lighter design. However, because different customers have different requirements for the refresh rate of display panels, display panels are usually compatible with multiple refresh rates, such as 60Hz and 120Hz. Furthermore, to meet users' demands for picture quality, the refresh rate is often further increased using technologies such as HSR or DLG, for example, doubling from 60Hz to 120Hz. When the refresh rate of the display panel is higher, the load on the system-on-a-chip (SOC) will increase accordingly. At the same time, the thickness of the SOC heatsink will also increase. This is one of the reasons why the thickness of the display panel is difficult to reduce as picture quality improves. For example, the heatsink for the SOC driven by a display panel with a 60Hz refresh rate is usually 70mm*90mm*7mm, while that for a 120Hz refresh rate... The typical size of the SOC thermal pad for display panel drivers is 135mm*90mm*12.5mm. Therefore, for display panels compatible with different refresh rate display modes, the size of the high refresh rate SOC thermal pad is used as the manufacturing standard. However, once the display mode is determined, the hardware state will be relatively fixed, requiring manual intervention for rework. For example, if the refresh rate of the display panel is reduced from 120Hz to 60Hz, a step-down resistor needs to be added manually to the source driver board. In addition to the time and labor costs, the entire switching process will also keep the driver hardware that drives the display panel in a fixed display mode after the switch. For example, when the display panel is reduced from 120Hz to 60Hz (downclocking), the system-on-a-chip is still in the display mode corresponding to 120Hz. It is only because of the presence of the voltage divider resistor that the LCD panel displays 60Hz. In other words, this method of switching display modes cannot change the hardware state of the display panel driver hardware, and therefore cannot solve the limitation of the thermal pad height to reduce the thickness of the display panel. Therefore, there is an urgent need for a method to improve the flexibility of display mode switching for display panels.

[0040] To address the problem of poor flexibility in switching display modes of current display panels, this application provides a panel display switching circuit 100, referring to... Figure 1In one embodiment of this application, the panel display switching circuit 100 includes a switching signal module 200, a switching control circuit 300, and a panel display module 600. The panel display module 600 includes a panel to be displayed 500 and a source driver chip array 400. The switching control circuit 300 is connected to the switching signal module 200 and the panel display module 600 through flexible flat cables L1 and L2, respectively. The switching signal module 200 is equipped with a system-on-a-chip that can be used to detect the display switching command corresponding to the panel to be displayed 500. The display switching command is used to switch the current frame rate of the panel to be displayed.

[0041] In this embodiment, it should be understood that the panel to be displayed is a display panel waiting to display an image. The panel to be displayed has two or more refresh rate working modes, and different refresh rate working modes correspond to different display modes. The current frame rate of the panel to be displayed is the number of frames displayed in the display image corresponding to the image to be displayed within a preset current time period. The preset time period can be 1 second, 2 seconds, or 3 seconds, etc., and the number of frames can be 60, 80, 120, or 240, etc. The display switching command is used to switch the current frame rate of the panel to be displayed to the target frame rate. The target frame rate can be the frame rate corresponding to a preset switching rule. The display switching command can be input by the user on the smart device that sets the panel to be displayed. Triggered by commands such as sound or key presses, the frame rate switching signal is used to achieve frame rate switching through the display switching circuit. The display switching circuit generates a target frame rate signal during interactive transmission of the frame rate switching signal. The target frame rate signal is used to control the timing of the screen display on the panel to be displayed. For example, in one implementable method, assuming the panel to be displayed is set on a smart TV, the display switching command is a switching command to switch the current screen frame rate of the panel to be displayed from 120Hz (120 frames per second displayed on the LCD display panel of the smart TV) to 60Hz (60 frames per second displayed on the LCD display panel of the smart TV). Then, the frame rate switching signal is used to switch the screen frame rate of the screen to be displayed from 120Hz to 60Hz through the timing control link.

[0042] In this embodiment, the switching control circuit 300 includes an ideal power supply VIN, a MOSFET Q, a first resistor R1, and a second resistor R2. One end of the first cable L1 is the input terminal of the switching control circuit 300, and the other end of the first cable L1 is the output terminal of the switching signal module 200. The switching control circuit 300 receives the frame rate switching signal output from the output terminal of the switching signal module 200 through its input terminal. Then, the switching control circuit 300 generates a target frame rate signal based on the frame rate switching signal. One end of the second cable L2 is the output terminal of the switching control circuit 300, and the other end of the second cable L2 is the input terminal of the panel display module 600. Then, the panel display module 600 receives the target frame rate signal output from the output terminal of the switching control circuit 300 through its input terminal. Then, the source driver chip array 400 of the panel display module 600 generates a display driving signal based on the target frame rate signal to drive the display panel 500 in the panel display module 600 to switch the current frame rate to the target frame rate for display.

[0043] In this embodiment, it should be understood that in existing display mode switching schemes, display panels compatible with different refresh rate display modes share the same COF (Chip On Film). Switching between different refresh rate display modes can be achieved by changing the hardware state. For example, in one feasible approach, referring to... Figure 2 and Figure 3 , Figure 2 This is a schematic diagram illustrating the operation of the screen driver hardware in 120Hz display mode. Figure 3To illustrate the operation of the screen driver hardware in 60Hz display mode, the TOCN board (screen driver board), S-PCBA (source driver board), and system-on-a-chip motherboard are all connected in pairs via FFC (Flexible Flat Cable). The flip-chip film includes the flip-chip film film and the source driver chip. Each source driver chip is connected to the source driver board via chip control pins. The system-on-a-chip motherboard includes the system-on-a-chip and a heatsink. The source driver boards include a left source driver board and a right source driver board. The left source driver board x and the right source driver board y are respectively equipped with resistors R1, R2, R3, and R4. R1 and R3 are used for 3.3V power supply, and R2 and R4 are used for grounding. Assuming that the display panel needs to be driven at 120Hz for image display, the system-on-a-chip needs to send a frame rate switching signal to make the source driver chip operate in 2-port mode. The mode (differential signals are often divided into A / B ports, 1-port represents one set of differential signals, 2-port represents two sets of differential signals) is used to pull the chip control pin of the source driver chip to 3.3V power supply. Assuming that the image to be displayed needs to be displayed at 60Hz, the system-on-a-chip (SoC) needs to send a control signal to make the source driver chip work in 1-port mode, thereby pulling the chip control pin of the source driver chip to 0V. Obviously, the current method of switching display modes is too fixed. Therefore, by generating a dynamic target frame rate signal in real time through the panel display switching circuit, the control signal sent by the SoC can be flexibly pulled high or low, thus improving the flexibility of display mode switching.

[0044] In this embodiment, since the switching of the display panel 500 needs to be achieved according to different frame rate switching signals, the switching control circuit 300 includes a screen driver board, a frame rate adjustment circuit, and a source driver board. The output terminal of the screen driver board is connected to the input terminal of the frame rate adjustment circuit, and is used to generate a frame rate control signal according to the frame rate switching signal, and output the frame rate control signal to the frame rate adjustment circuit through the output terminal of the screen driver board. Then, the frame rate adjustment circuit receives the frame rate control signal through its input terminal, adjusts the frame rate control signal to obtain the target frame rate signal, and then, due to the frame rate adjustment... The output of the entire circuit is connected to the input of the source driver board. The frame rate adjustment circuit then outputs the target frame rate signal to the source driver board through its output. Since the output of the source driver board is connected to the input of the panel display module, the source driver board outputs the target frame rate signal to the panel display module through its output. The frame rate control signal is used to control the generation of the display drive signal. The source driver board includes a first source driver board and a second source driver board. The first source driver board is the left source driver board, and the second source driver board is the right source driver board.

[0045] As an example, refer to Figure 4 , Figure 4 The circuit diagram illustrates the switching control circuit with the frame rate adjustment circuit located on the screen driver board. The switching control circuit 300 includes a screen driver board 3003, a frame rate adjustment circuit 3004, a first source driver board 3001, and a second source driver board 3002. The screen driver board 3003 generates a frame rate control signal according to the timing controller, and then adjusts the frame rate control signal through the frame rate adjustment circuit 3004 to obtain a target frame rate signal. The first source driver board 3001 and the second source driver board 3002 in the source driver board send the target frame rate signal to the source driver chip array 400 of the panel display module 600. After receiving the target frame rate signal, the source driver chip array 400 generates a display driving signal to drive the panel to be displayed 500 to display at the target frame rate corresponding to the target frame rate signal.

[0046] In this embodiment, the timing controller is disposed on the power driving sub-board of the screen driver board 3003, the input terminal of the frame frequency adjustment circuit 3004 is connected to the timing control pin of the timing controller, the frame frequency adjustment circuit 3004 is disposed on the screen driver board 3003, the frame frequency adjustment circuit 3004 includes a first output terminal and a second output terminal, the first output terminal is connected to the input terminal of the first source driver board 3001, and the second output terminal is connected to the input terminal of the second source driver board 3002.

[0047] In this embodiment, the frame rate adjustment circuit includes a MOS (Metal-Oxide-Semiconductor Field-Effect MOSFET). The transistor (MOSFET) and current-limiting resistors are used. The transistors include N-type and P-type MOSFETs, and the current-limiting resistors include a first current-limiting resistor R1 and a second current-limiting resistor R2. The MOSFETs can receive different types of frame rate switching signals to keep the frame rate adjustment circuit in a conducting or cut-off state. For example, when it is necessary to change the refresh rate of the display mode of the panel to be displayed 500 from a high refresh rate to a low refresh rate, the first frame rate switching signal is input, thereby controlling the frame rate adjustment circuit to be in a conducting state. Because the voltage division of the current-limiting resistors causes the voltage of the source driver chip array 400 to charge the panel to be displayed 500 to decrease, the display mode of the smart device set to the panel to be displayed will be automatically switched. Therefore, the flexibility of display mode switching is improved. In the automatic switching mode, the hardware state of the display panel driver hardware can be changed, which naturally makes the height of the heat sink no longer limited. When the height of the heat sink is no longer limited by the height of complex components, the thickness of the smart device set to the panel to be displayed 500 can be reduced, thereby improving the user experience of using the smart device.

[0048] In this embodiment, the first frame rate switching control signal is used to control the display mode refresh rate from high refresh rate to low refresh rate, and the second frame rate switching control signal is used to control the display mode refresh rate from low refresh rate to high refresh rate. When the frame rate switching signal switches from the first frame rate signal to the second frame rate signal, the MOS transistor is in the on state, and the frame rate adjustment circuit 3004 adjusts the frame rate control signal to obtain the target frame rate signal, which is then output to the source driver chip array 400. When the frame rate switching signal switches from the second frame rate signal to the first frame rate signal, the MOS transistor is in the off state, and the frame rate adjustment circuit 3004 does not adjust the generated frame rate control signal. That is, the frame rate control signal is the target frame rate signal.

[0049] In this embodiment, the target frame frequency signal includes a frame frequency GOA timing signal and a frame frequency data timing signal. The frame frequency GOA timing signal is used to control the GOA timing, and the frame frequency data timing signal is used to control the data timing.

[0050] In this embodiment, the frame rate adjustment circuit 3004 is set on the screen driver board 3003. After the timing controller of the screen driver board 3003 generates a corresponding frame rate control signal according to the frame rate switching signal, the frame rate adjustment circuit 3004 adjusts the frame rate control signal to obtain the target frame rate signal. The target frame rate signal is then output to the source driver chip array 400, which generates a display driver signal to realize automatic switching of the working mode of the display panel 500. There is no need to rely on manual intervention when switching the display mode. Therefore, the driver hardware that drives the display panel to display after switching will flexibly be in the switched display mode, thereby improving the flexibility of the display mode switching of the display panel.

[0051] Furthermore, referring to Figure 5 , Figure 5 The circuit diagram illustrates the switching control circuit with the frame rate adjustment circuit located on the left source driver board. The switching control circuit 300 includes a screen driver board 3003, a second frame rate adjustment circuit 3004, a first source driver board 3005, and a second source driver board 3006. The screen driver board 3003 generates a frame rate control signal according to the timing controller, and then adjusts the frame rate control signal through the frame rate adjustment circuit 3004 to obtain a target frame rate signal. The target frame rate signal is then sent to the source driver chip array 400 of the panel display module 600 through the first source driver board 3001 and the second source driver board 3002. After receiving the target frame rate signal, the source driver chip array 400 generates a display driving signal to drive the panel to be displayed 500 to display at the target frame rate corresponding to the target frame rate signal.

[0052] In this embodiment, the frame rate adjustment circuit 3004 can be disposed on the first source driver board 3001 or the second source driver board 3002. If the frame rate adjustment circuit 3004 is disposed on the first source driver board 3001, the output terminal of the frame rate adjustment circuit 3004 is connected to the input terminal of the first source driver board 3001. If the frame rate adjustment circuit 3004 is disposed on the second source driver board 3002, the output terminal of the frame rate adjustment circuit 3004 is connected to the input terminal of the second source driver board 3002. Regardless of whether the frame rate adjustment circuit 3004 is disposed on the first source driver board 3001 or the second source driver board 3002, the input terminal of the frame rate adjustment circuit 3004 is connected to the timing control output pin of the timing controller of the screen driver board 3003.

[0053] In this embodiment, it should be understood that when the frame frequency adjustment circuit 3004 is disposed on the first source driver board 3001 or the second source driver board 3002, the frame frequency adjustment circuit 3004 also generates a frame frequency control signal through the timing controller disposed on the screen driver board 3003, and then adjusts the frame frequency control signal through the frame frequency adjustment circuit 3004 to obtain the target frame frequency signal. Then, the target frame frequency signal is sent to the source driver chip array 400 of the panel display module 600 through the first source driver board 3001 and the second source driver board 3002. Finally, the source driver chip array 400 generates a display driving signal to drive the panel to be displayed 500 to display the target image frame corresponding to the target frame frequency signal.

[0054] In this embodiment, the frame rate adjustment circuit 3004 is placed on the source driver board 3003. After the timing controller of the screen driver board 3003 generates a corresponding frame rate control signal according to the frame rate switching signal, the frame rate adjustment circuit 3004 adjusts the frame rate control signal to generate a target frame rate signal. The target frame rate signal is then output to the source driver chip array 400, which generates a display driving signal to achieve automatic switching of the working mode of the display panel 500. There is no need for manual intervention when switching display modes. Therefore, the driving hardware that drives the display panel to display will flexibly be in the switched display mode after the switch, thereby improving the flexibility of the display mode switching of the display panel. At the same time, since the frame rate adjustment circuit is placed on the source driver board instead of the screen driver board, the operating load of the screen driver board is reduced, thus reducing the operating load of the screen driver board.

[0055] Furthermore, referring to Figure 6 , Figure 6 The diagram illustrates the circuit structure of the switching control circuit with the frame rate adjustment circuit located on the left and right source driver boards. The first frame rate adjustment circuit 3004 can be located on the first source driver board 3001, and the second frame rate adjustment circuit 3005 can be located on the second source driver board 3002. The output terminal of the first frame rate adjustment circuit 3004 is connected to the input terminal of the first source driver board 3001, and the output terminal of the second frame rate adjustment circuit 3005 is connected to the input terminal of the second source driver board 3002. The output terminals of the screen driver board 3003 include a third output terminal and a fourth output terminal. The third output terminal is connected to the input terminal of the first frame rate adjustment circuit 3004, and the fourth output terminal is connected to the input terminal of the second frame rate adjustment circuit 3005.

[0056] In this embodiment, it should be understood that when the first frame rate adjustment circuit 3004 is disposed on the first source driver board 3001 and the second frame rate adjustment circuit 3005 is disposed on the second source driver board 3002, both the first frame rate adjustment circuit 3004 and the second frame rate adjustment circuit 3005 generate frame rate control signals through the timing controller disposed on the screen driver board 3003, and then adjust the frame rate control signals through the frame rate adjustment circuit 3004 to obtain the target frame rate signal. Then, the target frame rate signal is sent to the source driver chip array 400 of the panel display module 600 through the first source driver board 3001 and the second source driver board 3002. Finally, the source driver chip array 400 generates a display driving signal to drive the panel to be displayed 500 to display the target image frame corresponding to the target frame rate signal.

[0057] In this embodiment, by setting the first frame rate adjustment circuit 3001 on the first source driver board 3003 and the second frame rate adjustment circuit 3002 on the second source driver board 3002, after the timing controller of the screen driver board 3003 generates a corresponding frame rate control signal according to the frame rate switching signal, the frame rate adjustment circuit 3004 adjusts the frame rate control signal to generate a target frame rate signal, and then outputs the target frame rate signal to the source driver chip array 400. The source driver chip array 400 generates a display driving signal to realize automatic switching of the display surface. The working mode of the board 500 does not require manual intervention when switching display modes. Therefore, the driver hardware that drives the display panel will flexibly be in the new display mode after switching, thereby improving the flexibility of the display panel's display mode switching. At the same time, since both the left and right source driver boards are equipped with frame rate adjustment circuits, the left and right source driver chip arrays can be controlled separately, thus improving the targeting of automatic switching. Furthermore, since the frame rate adjustment circuits are located on the source driver boards rather than on the screen driver board, the operating load of the screen driver board is reduced.

[0058] Based on the above-described panel display switching circuit, this application also provides a panel display switching method.

[0059] Reference Figure 7 , and combined Figures 1 to 6 In one embodiment, the panel display switching method includes:

[0060] Step S10: In response to the display switching command, obtain the frame rate switching signal corresponding to the display switching command, wherein the display switching command is used to switch the current frame rate of the panel to be displayed;

[0061] Step S20: Generate a target frame rate signal based on the frame rate switching signal;

[0062] Step S30: Drive the panel to be displayed to display the image at the target frame rate corresponding to the target frame rate signal.

[0063] As an example, steps S10 to S30 include: generating a frame rate switching signal in response to a display switching command via a switching signal module, and sending the frame rate switching signal to a switching control circuit, wherein the display switching command can be triggered by a user performing a display switching operation on a smart device corresponding to the panel to be displayed; after receiving the frame rate switching signal, the screen driver board of the switching control circuit generates a frame rate control signal, and inputs the frame rate control signal to the frame rate adjustment circuit through the power output pin of the power driver sub-board of the screen driver board; after receiving the frame rate control signal, the frame rate adjustment circuit adjusts the frame rate control signal by controlling the MOS in the frame rate adjustment circuit to be in a conducting or cut-off state, and then outputs a target frame rate signal; subsequently, the frame rate switching circuit outputs the target frame rate signal to the panel display module through the target frame rate signal output terminal; and the panel display module drives the panel to be displayed to display the image at the target frame rate corresponding to the target frame rate signal. Since a corresponding frame rate switching signal is generated after detecting the display switching command corresponding to the current frame rate, a frame rate control signal can be generated on the panel display switching circuit through the screen driver board. After adjusting the frame rate control signal, the target frame rate signal is output. The frame rate timing can then be switched synchronously through the target frame rate signal to display the image to be displayed. In other words, when the display mode is switched, the driver hardware that drives the display panel can be automatically switched through the frame rate switching signal, instead of manually switching the display mode of the display panel when the working mode of the display panel needs to be switched. Therefore, it overcomes the technical defects of low switching efficiency of manual intervention in switching display modes and the fact that the driver hardware will be fixed in the switched display mode after switching. Thus, the flexibility of switching display modes of the display panel is improved.

[0064] In addition, this application also provides a display panel including the above-mentioned panel display switching circuit. It is understood that since the above-mentioned panel display switching circuit is used in the display panel, the embodiments of the display panel include all the technical solutions of all embodiments of the above-mentioned panel display switching circuit, and the technical effects achieved are exactly the same, which will not be repeated here.

[0065] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the content of this application's specification and drawings under the concept of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A panel display switching circuit, characterized in that, The panel display switching circuit includes: The switching signal module is used to output a corresponding frame rate switching signal to the switching control circuit in response to a display switching command, wherein the display switching command is used to switch the current frame rate of the panel to be displayed; A switching control circuit is used to generate a target frame frequency signal based on the frame frequency switching signal and output the target frame frequency signal to the panel display module. The panel display module is used to generate a display driving signal based on the target frame rate signal, so as to drive the panel to be displayed to switch the current frame rate to the target frame rate for display; The switching control circuit includes: A screen driver board, the output of which is connected to the input of a frame rate adjustment circuit, is used to generate a frame rate control signal based on the frame rate switching signal and output the frame rate control signal to the frame rate adjustment circuit. A frame rate adjustment circuit, the output of which is connected to the input of the source driver board, is used to adjust the frame rate control signal to obtain the target frame rate signal and output the target frame rate signal to the source driver board. A source driver board, the output terminal of which is connected to the input terminal of the panel display module, is used to output the target frame rate signal to the panel display module. The source driver board includes a first source driver board and a second source driver board. The frame rate adjustment circuit includes a first frame rate adjustment circuit and a second frame rate adjustment circuit. The first frame rate adjustment circuit is disposed on the first source driver board, and the second frame rate adjustment circuit is disposed on the second source driver board. The output terminal of the screen driver board includes a third output terminal and a fourth output terminal. The third output terminal is connected to the input terminal of the first frame rate adjustment circuit, and the fourth output terminal is connected to the input terminal of the second frame rate adjustment circuit. The output terminal of the first frame rate adjustment circuit is connected to the input terminal of the first source driver board, and the output terminal of the second frame rate adjustment circuit is connected to the input terminal of the second source driver board.

2. The panel display switching circuit as described in claim 1, characterized in that, The frame rate adjustment circuit is disposed on the screen driver board. The output terminal of the frame rate adjustment circuit includes a first output terminal and a second output terminal. The first output terminal is connected to the input terminal of the first source driver board, and the second output terminal is connected to the input terminal of the second source driver board.

3. The panel display switching circuit as described in claim 1, characterized in that, The frame rate adjustment circuit is disposed on the first source driver board or the second source driver board, and the output terminal of the frame rate adjustment circuit is connected to the input terminal of the first source driver board or the input terminal of the second source driver board.

4. The panel display switching circuit as described in any one of claims 1 to 3, characterized in that, The frame rate adjustment circuit includes a MOSFET and a current-limiting resistor. The MOSFET includes an N-type MOSFET and a P-type MOSFET, and the current-limiting resistor includes a first resistor and a second resistor.

5. The panel display switching circuit as described in claim 4, wherein the frame frequency switching signal includes a first frame frequency switching signal and a second frame frequency switching signal, wherein when the frame frequency switching signal is switched from the first frame frequency switching signal to the second frame frequency switching signal, the MOS transistor is in the on state, and when the frame frequency switching signal is switched from the second frame frequency switching signal to the first frame frequency switching signal, the MOS transistor is in the off state.

6. The panel display switching circuit as described in claim 1, characterized in that, The target frame frequency signal includes the frame frequency GOA timing signal and the frame frequency data timing signal.

7. A panel display switching method, characterized in that, The panel display switching method is applied to the panel display switching circuit as described in any one of claims 1-6, and the panel display switching method includes: In response to a display switching command, a frame rate switching signal corresponding to the display switching command is obtained, wherein the display switching command is used to switch the current frame rate of the panel to be displayed; Generate a target frame rate signal based on the frame rate switching signal; Based on the target frame rate signal, a display driving signal is generated to drive the panel to be displayed to switch the current frame rate to the target frame rate for display.

8. A display panel, characterized in that, The display panel includes the panel display switching circuit as described in any one of claims 1 to 6.

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