Driving device and display driving method

Abstract

The application belongs to the field of display, and particularly relates to a driving device and a display driving method. The driving device comprises a time sequence controller, a data driving chip, a voltage switching module and a judging module. The voltage switching module is connected with the time sequence controller. The voltage switching module can output data voltage of a blank interval of a current frame according to brightness information of the current frame output by the time sequence controller. The data voltage of the blank interval of the current frame is less than the data voltage of a display interval of the current frame. The judging module is connected with the time sequence controller, the data driving chip and the voltage switching module. In the display interval of the current frame, the judging module turns on the data driving chip and a display panel. In the blank interval of the current frame, the judging module turns on the voltage switching module and the display panel. Since there is a blank interval after each display interval, stopping or reducing the output of data voltage in the blank interval can reduce the power consumption of the display device.

Description

Technical Field

[0001] This application belongs to the field of display, specifically relating to a driving device and a display driving method. Background Technology

[0002] Display devices include display panels and driving devices. Display panels include liquid crystal display (LCD) panels and organic light-emitting diode (OLED) display panels, among others. As demands for display quality continue to increase, display panels are developing towards higher refresh rates and higher resolutions. However, while higher refresh rates and higher resolutions improve display performance, they also increase the power consumption of the display device. Summary of the Invention

[0003] The purpose of this application is to provide a driving device and a display driving method to reduce the power consumption of the display device.

[0004] To achieve the above objectives, this application provides a driving device, including a timing controller and a data driving chip connected together, the driving device further including:

[0005] A voltage switching module is connected to the timing controller. The voltage switching module can output the data voltage of the blank area of ​​the current frame according to the brightness information of the current frame output by the timing controller. The data voltage of the blank area of ​​the current frame is less than the data voltage of the display area of ​​the current frame.

[0006] The judgment module is connected to the timing controller, the data driver chip, and the voltage switching module. During the display interval of the current frame, the judgment module turns on the data driver chip and the display panel, and outputs the data voltage of the current frame display interval to the display panel. During the blank interval of the current frame, the judgment module turns on the voltage switching module and the display panel, and outputs the data voltage of the current frame blank interval to the display panel.

[0007] Optionally, at least the timing controller and the judgment module are connected via a reset signal line, and the judgment module responds to the reset signal line signal to connect the voltage switching module to the display panel.

[0008] Optionally, the judgment module includes a timer, which is used to count in response to the reset signal line signal. When the timer counts less than or equal to the duration of the blank interval, the judgment module connects the data driver chip and the display panel.

[0009] Optionally, the timing controller and the judgment module are also connected via a frame start signal line, and the judgment module responds to the frame start signal line signal to connect the data driver chip to the display panel.

[0010] Optionally, the judgment module includes a dual-channel trigger, which includes a first trigger input terminal, a second trigger input terminal, a first signal input terminal, a second signal input terminal, and a signal output terminal. The first trigger input terminal is connected to the reset signal line, the second trigger input terminal is connected to the frame start signal line, the first signal input terminal is connected to the data driver chip, the second signal input terminal is connected to the voltage switching module, and the signal output terminal is connected to the display panel. One of the first signal input terminal and the second signal input terminal is connected to the signal output terminal. The dual-channel trigger responds to the reset signal line signal to connect the second signal input terminal and the signal output terminal, and responds to the frame start signal line signal to connect the first signal input terminal and the signal output terminal.

[0011] Optionally, the dual-path trigger includes a first edge trigger and a second edge trigger. The control terminal of the first edge trigger is connected to the timing controller via the reset signal line and the frame start signal line. The input terminal of the first edge trigger is connected to the data driver chip, and the output terminal of the first edge trigger is connected to the display panel. The control terminal of the second edge trigger is connected to the timing controller via the reset signal line and the frame start signal line. The input terminal of the second edge trigger is connected to the voltage switching module, and the output terminal of the second edge trigger is connected to the display panel. The second edge trigger is turned on in response to the reset signal line signal, and the first edge trigger is turned off in response to the reset signal line signal. The second edge trigger is turned off in response to the frame start signal line signal, and the first edge trigger is turned on in response to the frame start signal line signal.

[0012] Optionally, the voltage switching module includes a detection conversion unit and a switching unit connected to each other. The detection conversion unit is connected to the timing controller. The detection conversion unit converts the brightness information of the current frame into a trigger voltage signal. The switching unit outputs the data voltage of the blank area of ​​the current frame according to the trigger voltage signal.

[0013] Optionally, the switching unit includes multiple trigger switches, the control terminals of which are all connected to the detection and conversion unit, the input terminals of which are connected to different preset blank interval voltages, and the output terminals of which are connected to the display panel. The multiple trigger switches have different on-state voltages, and one of the multiple trigger switches responds to the trigger voltage signal and outputs the preset blank interval voltage to the display panel.

[0014] This application also provides a display driver method, including:

[0015] Obtain the brightness information of the current frame;

[0016] During the display range of the current frame, the data voltage of the current frame display range corresponding to the brightness information is output to the display panel;

[0017] In the blank interval of the current frame, the data voltage of the blank interval of the current frame is output to the display panel, and the data voltage of the blank interval of the current frame is less than the data voltage of the display interval of the current frame.

[0018] Optionally, outputting the data voltage of the current frame blank interval to the display panel includes:

[0019] The brightness information of the current frame is converted into a trigger voltage signal;

[0020] Based on the trigger voltage signal, the preset blank interval voltage corresponding to the trigger voltage signal is selected from multiple different preset blank interval voltages and output to the display panel.

[0021] The driving device and display driving method disclosed in this application have the following beneficial effects:

[0022] In this application, the driving device includes a timing controller, a data driving chip, a voltage switching module, and a judgment module. The judgment module is connected to the timing controller, the data driving chip, and the voltage switching module. During the display interval of the current frame, the judgment module outputs the data voltage of the current frame's display interval to the display panel. During the blank interval of the current frame, the judgment module connects the voltage switching module and the display panel. The voltage switching module can output the data voltage of the blank interval of the current frame to the display panel based on the brightness information of the current frame output by the timing controller. The data voltage of the blank interval of the current frame is less than the data voltage of the display interval of the current frame. Since there is a blank interval after each display interval, the blank interval performs signal switching such as polarity reversal signal and low-frequency clock signal. There is no need for related image display. Stopping or reducing the data voltage output during the blank interval can reduce the power consumption of the display device. The data voltage remains unchanged during the display interval, which does not affect the normal image display.

[0023] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0025] 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. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0026] Figure 1 This is a schematic diagram of the drive device in Embodiment 1 of this application.

[0027] Figure 2 This is a timing diagram of the control flow of the drive device in Embodiment 1 of this application.

[0028] Figure 3 This is a schematic diagram showing the change of data voltage with the frame start signal and reset signal in Embodiment 1 of this application.

[0029] Figure 4 This is a schematic diagram of the judgment module making a judgment based on time in Embodiment 1 of this application.

[0030] Figure 5 This is a schematic diagram of the judgment module making a judgment based on the frame start signal in Embodiment 1 of this application.

[0031] Figure 6 This is a schematic diagram of the determination module in Embodiment 1 of this application.

[0032] Figure 7 This is a schematic diagram of the voltage switching module structure in Embodiment 1 of this application.

[0033] Figure 8 This is a flowchart of the display driving method in Embodiment 2 of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100. Timing controller; 101. Reset signal line; 102. Frame start signal line;

[0036] 200. Data-driven chip;

[0037] 300. Voltage switching module; 310. Detection and conversion unit; 320. Switching unit; T1. First trigger switch; T2. Second trigger switch; T3. Third trigger switch; T4. Fourth trigger switch;

[0038] 400, Judgment module; 410, Timer; D1, First edge trigger; D2, Second edge trigger; 500, Display panel. Detailed Implementation

[0039] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0040] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0041] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application, and should not be construed as limiting the present application.

[0042] Example 1

[0043] See Figure 1 As shown, in this embodiment, the driving device is used for the display device and is connected to the display panel 500. The driving device includes a timing controller 100 (TCON), a data driver chip 200 (SourceDriver, SD), a voltage switching module 300, and a judgment module 400. The timing controller 100 and the data driver chip 200 are connected to each other.

[0044] The voltage switching module 300 is connected to the timing controller 100. The voltage switching module 300 can output the data voltage (Vout) of the blanking interval (V blanking) of the current frame according to the brightness information of the current frame output by the timing controller 100. The data voltage of the blanking interval of the current frame is less than the data voltage (Vout) of the display interval of the current frame. The data voltage of the blanking interval can be 0.

[0045] The judgment module 400 is connected to the timing controller 100, the data driver chip 200, and the voltage switching module 300. During the display interval of the current frame, the judgment module 400 activates the data driver chip 200 and the display panel 500, outputting the data voltage of the current frame's display interval to the display panel; during the blank interval of the current frame, the judgment module 400 activates the voltage switching module 300 and the display panel 500, outputting the data voltage of the current frame's blank interval to the display panel 500.

[0046] As demands for display quality continue to increase, display panels are evolving towards higher refresh rates and higher resolutions. However, while improving display quality, higher refresh rates and higher resolutions also increase the power consumption of display devices.

[0047] In this embodiment, the driving device includes a timing controller 100, a data driver chip 200, a voltage switching module 300, and a judgment module 400. The judgment module 400 is connected to the timing controller 100, the data driver chip 200, and the voltage switching module 300. During the display interval of the current frame, the judgment module 400 outputs the data voltage of the current frame display interval to the display panel 500. During the blank interval of the current frame, the judgment module 400 connects the voltage switching module 300 and the display panel 500. The voltage switching module 300 can output the data voltage of the blank interval of the current frame to the display panel 500 according to the brightness information of the current frame output by the timing controller 100. The data voltage of the blank interval of the current frame is less than the data voltage of the display interval of the current frame. Since there is a blank interval after each frame display interval, the blank interval performs signal switching such as polarity reversal signal (POL) and low frequency clock signal (LC), and there is no need for related image display. Stopping or reducing the data voltage output during the blank interval can reduce the power consumption of the display device. The data voltage remains unchanged during the display interval, which does not affect the normal image display.

[0048] Furthermore, switching between polarity reversal signals (POL) and low-frequency clock signals (LC) during blank intervals can cause signal coupling fluctuations, resulting in flickering and line-flickering issues. This embodiment addresses these issues by stopping or reducing data voltage output during blank intervals, thus mitigating the flickering and line-flickering problems caused by signal coupling fluctuations.

[0049] For example, at least the timing controller 100 and the judgment module 400 are connected via a reset signal line 101. The judgment module 400 responds to the reset signal line 101 signal, i.e., the reset signal (RST), by turning on the voltage switching module 300 and the display panel 500. The reset signal is a frame end signal; the valid signal of the reset signal is a short high level, and the rest of the time it is an invalid low level, occurring once per frame. When the judgment module 400 detects the reset signal, i.e., at the beginning of a blank interval, it turns on the voltage switching module 300 and the display panel 500, outputting the data voltage of the blank interval to the display panel 500. The data voltage of the blank interval is lower than the data voltage of the display interval, reducing the power consumption of the display device.

[0050] The judgment module 400 detects the reset signal and controls the voltage switching module 300 to conduct with the display panel 500 through the reset signal, which can easily realize the stopping of data voltage output or the reduction of data voltage output in the blank area.

[0051] See Figure 4 As shown, the judgment module 400 includes a timer 410, which is used to count in response to the reset signal line 101. When the timer 410 counts less than or equal to the blank interval duration, the judgment module 400 connects the data driver chip 200 and the display panel 500 and outputs the data voltage of the display interval to the display panel 500.

[0052] By using timer 410 to keep track of time, and connecting data driver chip 200 and display panel 500 when the timer 410 counts less than or equal to the duration of the blank interval, the data voltage of the display interval can be kept constant.

[0053] See Figure 5 As shown, the timing controller 100 and the judgment module 400 are also connected via a frame start signal line 102. The judgment module 400 responds to the frame start signal line 102 signal, i.e., the frame start signal (STV), by connecting the data driver chip 200 to the display panel 500 and outputting the data voltage of the display interval to the display panel 500. The frame start signal is a frame start signal; its effective signal is a short high level, and the rest of the time it is an invalid low level, occurring once per frame. When the judgment module 400 detects the frame start signal, i.e., at the beginning of the display interval, it connects the data driver chip 200 to the display panel 500 and outputs the data voltage of the display interval to the display panel 500. The data voltage remains unchanged during the display interval, not affecting the normal image display.

[0054] The judgment module 400 detects the frame start signal and controls the data driver chip 200 to conduct with the display panel 500 through the frame start signal, which can simply achieve the data voltage of the display area to remain unchanged.

[0055] See Figure 5 As shown, the judgment module 400 includes a dual-channel trigger, which includes a first trigger input, a second trigger input, a first signal input, a second signal input, and a signal output. The first trigger input is connected to the reset signal line 101, the second trigger input is connected to the frame start signal line 102, the first signal input is connected to the data driver chip 200, the second signal input is connected to the voltage switching module 300, and the signal output is connected to the display panel 500. The dual-channel trigger activates the second signal input and the signal output in response to the reset signal line 101, and activates the first signal input and the signal output in response to the frame start signal line 102. One of the first and second signal inputs is connected to the signal output.

[0056] In other words, when a reset signal is detected, the judgment module 400 turns on the voltage switching module 300 and the display panel 500 to stop the data voltage output or reduce the data voltage output; when a frame start signal is detected, the judgment module 400 turns on the data driver chip 200 and the display panel 500 to keep the data voltage in the display range constant.

[0057] For details, see Figure 6 As shown, the dual-path trigger includes a first edge-triggered trigger D1 and a second edge-triggered trigger D2. The control terminal of the first edge-triggered trigger D1 is connected to the timing controller 100 via a reset signal line 101 and a frame start signal line 102. The input terminal of the first edge-triggered trigger D1 is connected to the data driver chip 200, and the output terminal of the first edge-triggered trigger D1 is connected to the display panel 500. The control terminal of the second edge-triggered trigger D2 is connected to the timing controller 100 via a reset signal line 101 and a frame start signal line 102. The input terminal of the second edge-triggered trigger D2 is connected to the voltage switching module 300, and the output terminal of the second edge-triggered trigger D2 is connected to the display panel 500. The second edge-triggered trigger D2 is turned on in response to the reset signal line 101, the first edge-triggered trigger D1 is turned off in response to the reset signal line 101, the second edge-triggered trigger D2 is turned off in response to the frame start signal line 102, and the first edge-triggered trigger D1 is turned on in response to the frame start signal line 102.

[0058] Both the first edge-triggered trigger D1 and the second edge-triggered trigger D2 are triggered by a high level. After one high level turns on, the next high level turns off. The first edge-triggered trigger D1 and the second edge-triggered trigger D2 have different initial states. When a reset signal is input, the first edge-triggered trigger D1 turns off and the second edge-triggered trigger D2 turns on, turning on the voltage switching module 300 and the display panel 500 to stop or reduce the data voltage output. When a frame start signal is input, the first edge-triggered trigger D1 turns on and the second edge-triggered trigger D2 turns off, turning on the data driver chip 200 and the display panel 500 to keep the data voltage constant in the display range.

[0059] The display interval data driver chip 200 and the display panel 500 are turned on by using two edge triggers, and the blank interval voltage switching module 300 and the display panel 500 are turned on, making the structure of the judgment module 400 simpler.

[0060] See Figure 7 As shown, the voltage switching module 300 includes a detection conversion unit 310 and a switching unit 320 connected to each other. The detection conversion unit 310 is connected to the timing controller 100. The detection conversion unit 310 converts the brightness information of the current frame into a trigger voltage signal. The switching unit 320 outputs the data voltage of the blank area of ​​the current frame according to the trigger voltage signal. The greater the brightness of the current frame, the greater the trigger voltage signal, and the greater the data voltage of the blank area of ​​the current frame.

[0061] The detection and conversion unit 310 converts the brightness information of the current frame into a trigger voltage signal. The trigger voltage signal determines the data voltage of the blank area. Compared with the solution of directly reducing the data voltage of the blank area to 0, it can avoid excessive brightness difference and affect the display effect.

[0062] Specifically, the switching unit 320 includes multiple trigger switches. The control terminals of each trigger switch are connected to the detection and conversion unit 310. The input terminals of each trigger switch are connected to different preset blank range voltages, and the output terminals of each trigger switch are connected to the display panel 500. The multiple trigger switches have different on-state voltages. One of the multiple trigger switches responds to the trigger voltage signal and outputs the preset blank range voltage to the display panel 500. The output terminals of the trigger switches can be connected to a power management chip, which provides different preset blank range voltages. However, this is not the only possibility; they can also be connected to a data driver chip 200, etc., depending on the specific situation.

[0063] For example, the multiple trigger switches can be designated as a first trigger switch T1, a second trigger switch T2, a third trigger switch T3, and a fourth trigger switch T4. The control terminals of all four trigger switches are connected to the detection and conversion unit 310. The preset blank interval voltage V at the input terminal of the first trigger switch T1... L0 That is, the data voltage corresponding to grayscale 0; the preset blank interval voltage V at the input terminal of the second trigger switch T2. L64 That is, the data voltage corresponding to 64 gray levels; the preset blank interval voltage V at the input terminal of the third trigger switch T3. L127 That is, the data voltage corresponding to grayscale 127; the preset blank interval voltage V at the input terminal of the fourth trigger switch T4. L192 This refers to the data voltage corresponding to 192 gray levels. It should be understood that the specific number of trigger switches, the size of the preset blank interval voltage, and the difference between different preset blank interval voltages can be set as appropriate, and this application is not limited thereto.

[0064] The switching unit 320 includes multiple trigger switches, the input terminals of which are connected to different preset blank interval voltages. Based on the brightness of the current frame, a preset blank interval voltage is selected and output to the display panel 500. This can reduce the data voltage according to the brightness, avoiding excessive brightness difference from affecting the display effect, and also avoid the switching circuit being too complex.

[0065] Example 2

[0066] This application also provides a display driver method, see [link to relevant documentation] Figure 8 As shown, the display driving method includes:

[0067] S100: Obtain the brightness information of the current frame;

[0068] S200: In the display range of the current frame, output the data voltage of the current frame display range corresponding to the brightness information to the display panel 500;

[0069] S300: In the blank interval of the current frame, output the data voltage of the blank interval of the current frame to the display panel 500. The data voltage of the blank interval of the current frame is less than the data voltage of the display interval of the current frame.

[0070] Since there is a blank interval after each frame display interval, the blank interval is used for switching signals such as polarity reversal signal (POL) and low frequency clock signal (LC). There is no need for related image display. Stopping or reducing data voltage output in the blank interval can reduce the power consumption of the display device. The data voltage remains unchanged in the display interval and does not affect the normal image display.

[0071] In some embodiments, outputting the data voltage of the current frame blank interval to the display panel 500 includes:

[0072] Convert the brightness information of the current frame into a trigger voltage signal;

[0073] Based on the trigger voltage signal, a preset blank interval voltage corresponding to the trigger voltage signal is selected from multiple different preset blank interval voltages and output to the display panel 500.

[0074] Different preset blank interval voltages correspond to the brightness of the displayed image. Based on the brightness level of the current frame, a preset blank interval voltage is selected and output to the display panel 500. This can reduce the data voltage according to the brightness level, avoiding excessive brightness difference from affecting the display effect.

[0075] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0076] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0077] In the description of this specification, references to terms such as "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0078] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and description of this application should fall within the scope of this patent application.

Claims

1. A driving device, comprising a timing controller and a data driving chip connected together, characterized in that, The drive device further includes: A voltage switching module is connected to the timing controller. The voltage switching module can output the data voltage of the blank area of ​​the current frame according to the brightness information of the current frame output by the timing controller. The data voltage of the blank area of ​​the current frame is less than the data voltage of the display area of ​​the current frame. The judgment module is connected to the timing controller, the data driver chip, and the voltage switching module. During the display interval of the current frame, the judgment module turns on the data driver chip and the display panel, and outputs the data voltage of the current frame display interval to the display panel. During the blank interval of the current frame, the judgment module turns on the voltage switching module and the display panel, and outputs the data voltage of the current frame blank interval to the display panel. The voltage switching module includes a detection conversion unit and a switching unit connected to each other. The detection conversion unit is connected to the timing controller. The detection conversion unit converts the brightness information of the current frame into a trigger voltage signal. The switching unit outputs the data voltage of the blank interval of the current frame according to the trigger voltage signal. The switching unit includes multiple trigger switches. The control terminals of the trigger switches are all connected to the detection conversion unit. The input terminals of the trigger switches are connected to different preset blank interval voltages. The output terminals of the trigger switches are connected to the display panel. The multiple trigger switches have different on-state voltages. One of the multiple trigger switches responds to the trigger voltage signal and outputs the preset blank interval voltage to the display panel.

2. The driving device according to claim 1, characterized in that, At least the timing controller and the judgment module are connected via a reset signal line. The judgment module responds to the reset signal line signal and connects the voltage switching module to the display panel.

3. The driving device according to claim 2, characterized in that, The judgment module includes a timer, which is used to count in response to the reset signal line signal. When the timer counts less than or equal to the duration of the blank interval, the judgment module connects the data driver chip and the display panel.

4. The driving device according to claim 2, characterized in that, The timing controller and the judgment module are also connected via a frame start signal line. The judgment module responds to the frame start signal line signal and connects the data driver chip to the display panel.

5. The driving device according to claim 4, characterized in that, The judgment module includes a dual-channel trigger, which includes a first trigger input terminal, a second trigger input terminal, a first signal input terminal, a second signal input terminal, and a signal output terminal. The first trigger input terminal is connected to the reset signal line, the second trigger input terminal is connected to the frame start signal line, the first signal input terminal is connected to the data driver chip, the second signal input terminal is connected to the voltage switching module, and the signal output terminal is connected to the display panel. One of the first signal input terminal and the second signal input terminal is connected to the signal output terminal. The dual-channel trigger responds to the reset signal line signal to connect the second signal input terminal and the signal output terminal, and responds to the frame start signal line signal to connect the first signal input terminal and the signal output terminal.

6. The driving device according to claim 5, characterized in that, The dual-path trigger includes a first edge trigger and a second edge trigger. The control terminal of the first edge trigger is connected to the timing controller via the reset signal line and the frame start signal line. The input terminal of the first edge trigger is connected to the data driver chip, and the output terminal of the first edge trigger is connected to the display panel. The control terminal of the second edge trigger is connected to the timing controller via the reset signal line and the frame start signal line. The input terminal of the second edge trigger is connected to the voltage switching module, and the output terminal of the second edge trigger is connected to the display panel. The second edge trigger is turned on in response to the reset signal line signal, and the first edge trigger is turned off in response to the reset signal line signal. The second edge trigger is turned off in response to the frame start signal line signal, and the first edge trigger is turned on in response to the frame start signal line signal.

7. A display driving method, characterized in that, The display driving method is used to control the driving device as described in any one of claims 1 to 6, and the display driving method includes: Obtain the brightness information of the current frame; During the display range of the current frame, the data voltage of the current frame display range corresponding to the brightness information is output to the display panel; In the blank interval of the current frame, the data voltage of the blank interval of the current frame is output to the display panel, and the data voltage of the blank interval of the current frame is less than the data voltage of the display interval of the current frame.

8. The display driving method according to claim 7, characterized in that, The step of outputting the data voltage of the current frame blank interval to the display panel includes: The brightness information of the current frame is converted into a trigger voltage signal; Based on the trigger voltage signal, the preset blank interval voltage corresponding to the trigger voltage signal is selected from multiple different preset blank interval voltages and output to the display panel.

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