Methods, systems and display devices for driving and controlling display panels

Abstract

This application relates to the field of display technology and provides a driving control method, system, and display device for a display panel. The method includes: identifying whether a high-power characteristic exists in the current frame of the display; if the high-power characteristic is detected in the current frame, acquiring the real-time operating current of the source driver; determining a frame driving mode for N consecutive frames, starting with the next frame, based on a comparison between the real-time operating current and a preset current threshold; at least one of the N consecutive frames being a low-power frame; and, according to the frame driving mode, controlling the source driver to output a constant voltage corresponding to a black screen during the time period corresponding to the low-power frame, and controlling the gate driver to stop scanning, so that the display panel enters a low-power display state. This solution can improve the display reliability of high refresh rate display panels.

Description

Technical Field

[0001] This application belongs to the field of display technology, and in particular relates to a driving control method, system and display device for a display panel. Background Technology

[0002] With the increasing demands for dynamic image display effects in applications such as e-sports displays and professional graphics processing displays, high refresh rate display panels are gradually being widely used. For example, the refresh rate of display panels can reach 360Hz or even higher to improve the smoothness and dynamic response of screen transitions. However, with the increase in refresh rate, the power consumption of the display panel driving circuit also increases. Especially when displaying certain types of images, the local driving load will increase significantly, which can easily lead to increased heat generation in local areas of the driving circuit. This not only affects display stability but may also affect the reliability and lifespan of components.

[0003] Existing technologies typically address this by enhancing heat dissipation structures, such as adding heat sinks, thermally conductive structures, or other auxiliary heat dissipation components, to reduce the impact of heat accumulation. However, these solutions usually rely on additional structural design and material configuration, resulting in high costs and complex implementation. Furthermore, they offer limited improvement for localized heating caused by transient load changes.

[0004] Therefore, how to balance display quality and power consumption control in high refresh rate display scenarios, and reduce local heat generation during the display panel driving process, remains a technical problem to be solved in this field. Summary of the Invention

[0005] In view of this, embodiments of this application provide a driving control method, system and display device for a display panel, which can accurately identify and efficiently reduce the power consumption and temperature of the driving chip under heavy screen load, so as to improve the display reliability of the high refresh rate display panel.

[0006] A first aspect of this application provides a driving control method for a display panel, the method comprising: Identify whether there are high power consumption features in the current frame of the display. The high power consumption features refer to the screen features in the current frame of the display that cause an increase in the load on the source driver. If the high power consumption feature is detected in the current frame of the display, the real-time operating current of the source driver is obtained. Based on the comparison result between the real-time operating current and the preset current threshold, a frame driving mode for N consecutive frames starting with the next frame of the display is determined; the next frame is the frame following the current frame; the number of low-power frames corresponding to different frame driving modes is different; at least one frame in the N consecutive frames is a low-power frame. According to the frame driving method, the source driver is controlled to output a constant voltage corresponding to the black screen during the time period corresponding to the low power frame, and the gate driver is controlled to stop scanning so that the display panel enters a low power display state.

[0007] In this embodiment, firstly, by identifying whether there are high-power characteristics in the current frame display, target frames that may increase the driving load can be screened from the display source, thereby improving the targeting of subsequent control. Secondly, when high-power characteristics are identified in the current frame display, the real-time operating current of the source driver is obtained, which can further reflect the current driving load state, thereby avoiding misjudgments caused by open-loop control based solely on the frame type. Furthermore, based on the comparison result between the real-time operating current and the preset current threshold, the frame driving mode of N consecutive frames starting with the next frame display is determined, wherein the number of low-power frames corresponding to different frame driving modes is different. At least one frame in the N consecutive frames is a low-power frame, which can selectively insert low-power display processes while maintaining normal display, thereby balancing display effect and power consumption control. Finally, during the time period corresponding to the low-power frame, the source driver is controlled to output a constant voltage corresponding to the black screen, and the gate driver is controlled to stop scanning, which can accurately identify and efficiently reduce the power consumption and temperature of the driver chip under heavy load, thereby improving the display reliability of the high refresh rate display panel.

[0008] In this embodiment of the application, identifying whether there are high-power features in the current frame display includes: Based on the current frame display, determine the spatial features of the current frame display, wherein the spatial features include at least line width and local contrast. Based on the spatial features, identify whether there are high power consumption features in the current frame display.

[0009] In this embodiment, by identifying high-power characteristics based on the spatial features of the current frame's display, the accuracy of identifying high-power images can be improved, thereby enhancing the targeting of subsequent low-power control.

[0010] In this embodiment of the application, the preset current threshold includes at least one current threshold, and the step of determining the frame driving mode of N consecutive frames starting with the next display frame based on the comparison result between the real-time operating current and the preset current threshold includes: The real-time operating current is filtered to obtain the filtered real-time current value. Based on the relationship between the real-time current value and the at least one current threshold, and the current frame driving mode of the display panel, determine whether the frame driving mode of the N consecutive frames of the display is a light protection mode, an emergency protection mode, or a medium protection mode. Wherein, the light protection mode refers to using one frame out of every three consecutive frames as the low-power frame; the medium protection mode refers to using one frame out of every two consecutive frames as the low-power frame; the emergency protection mode refers to using at least two frames out of every three consecutive frames as the low-power frame, where N is an integer greater than 3.

[0011] In this embodiment, by filtering the real-time operating current, the impact of current fluctuations on frame drive mode determination can be reduced, thereby improving the stability of drive control. Furthermore, by setting different current threshold ranges and corresponding protection modes, the display panel can be controlled in stages according to the load level, thereby improving the precision of low-power adjustment.

[0012] In this embodiment of the application, controlling the source driver to output a constant voltage corresponding to the black screen during the time period corresponding to the low-power frame includes: During the time period corresponding to the low-power frame, a forced black signal is output to the data forced black level circuit. The forced black signal is used to instruct the data forced black level circuit to replace the display data corresponding to the low-power frame with a preset black screen digital code, so that the source driver outputs the constant voltage during the low-power frame. The control terminal of the data forced black level circuit is used to receive the forced black signal.

[0013] In this embodiment, by replacing the display data corresponding to the low-power frame with a preset black screen digital code, the source driver can output a constant voltage corresponding to the black screen, thereby facilitating the display panel to enter a low-power display state.

[0014] In this embodiment of the application, the control gate driver stops scanning, including: A gate shielding signal is output to the gate driver. The gate shielding signal is used to shield the start pulse and clock signal of the gate driver, so that the gate stops scanning.

[0015] In this embodiment, by outputting a gate shielding signal to the gate driver to shield its start pulse and clock signal, the gate driver can stop scanning, thereby reducing scan drive activity in low-power frames.

[0016] A second aspect of this application provides a drive control system for a display panel, the system comprising: A timing controller for performing the method as described in the first aspect above; A data-forced black level circuit is connected between the timing controller and the source driver, and is used to replace the display data with a preset black screen digital code in the low-power frame; A current detection circuit, connected to the source driver, is used to detect the operating current of the source driver and output a detection signal corresponding to the operating current to the timing controller, so that the timing controller can obtain the real-time operating current of the source driver. The source driver is used to output a constant voltage corresponding to the black screen according to the preset black screen digital code; The gate driver is used to stop scanning in the low-power frame.

[0017] In this embodiment of the application, the timing controller further includes a current monitoring interface, which includes an analog-to-digital converter for converting the detection signal into an analog-to-digital signal to obtain the real-time operating current of the source driver.

[0018] In this embodiment of the application, the timing controller is further configured to output a gate shielding signal during the time period corresponding to the low-power frame. The gate shielding signal is used to shield the start pulse signal and clock signal of the gate driver, so that the gate driver stops scanning.

[0019] In this embodiment of the application, the data forced black level circuit includes a multiplexer and a black level register; The first input of the multiplexer is connected to the normal display data, the second input is connected to the output of the black level register, and the control terminal is connected to the forced black signal output by the timing controller. The black level register is used to store the preset black screen digital code.

[0020] In this embodiment, the current detection circuit includes: a sampling resistor, a current detection amplifier, and a low-pass filter circuit; one end of the low-pass filter circuit is connected to the output terminal of the current detection amplifier, and the other end of the low-pass filter circuit is connected to the input pin of the analog-to-digital converter in the timing controller; The sampling resistor is connected in series in the power supply circuit of the source driver; the two ends of the sampling resistor are respectively connected to the first input terminal and the second input terminal of the current sensing amplifier; the current sensing amplifier is used to amplify the differential voltage on the sampling resistor by a fixed factor and output an analog voltage to ground; the analog voltage to ground is input to the input pin of the analog-to-digital converter in the timing controller after passing through the low-pass filter circuit; The timing controller starts the analog-to-digital converter during the vertical blanking period of each frame and reads the source driver operating current value of the current frame.

[0021] A third aspect of this application provides a display device, the display device including a display panel and a drive control system for the display panel as described in the second aspect; The timing controller in the drive control system of the display panel is used to execute the drive control method of the display panel as described in the first aspect.

[0022] A fourth aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method described in the first aspect above.

[0023] A fifth aspect of this application provides a computer program product that, when run on a drive control system of a display panel, causes the drive control system of the display panel to execute the method described in the first aspect.

[0024] The beneficial effects of the second to fifth aspects mentioned above can all be referred to the beneficial effects described in the first aspect above, and will not be repeated here. Attached Figure Description

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

[0026] Figure 1 This is a flowchart illustrating the driving control method for a display panel provided in an embodiment of this application; Figure 2 This is a schematic diagram of the frame-driven mode determination process provided in the embodiments of this application; Figure 3 This is a schematic diagram of low-power frame distribution under different frame driving methods provided in the embodiments of this application; Figure 4 This is a schematic diagram of the low-power control timing in emergency protection mode provided in an embodiment of this application; Figure 5 This is a schematic diagram of the drive control system for the display panel provided in an embodiment of this application; Figure 6 This is a schematic diagram of the current detection circuit provided in the embodiment of this application; Figure 7 This is a schematic diagram of the data forced black level circuit provided in the embodiments of this application; Figure 8 This is a schematic diagram of the structure of the display device provided in the embodiments of this application. Detailed Implementation

[0027] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0028] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0029] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0030] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0031] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] It should be understood that the sequence number of each step in this embodiment does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of this application embodiment.

[0033] With the increasing demands for dynamic image display effects in applications such as e-sports displays and professional graphics processing displays, high refresh rate display panels are gradually being widely used. For example, the refresh rate of display panels can reach 360Hz or even higher to improve the smoothness and dynamic response of screen transitions. However, with the increase in refresh rate, the power consumption of the display panel driving circuit also increases. Especially when displaying certain types of images, the local driving load will increase significantly, which can easily lead to increased heat generation in local areas of the driving circuit. This not only affects display stability but may also affect the reliability and lifespan of components.

[0034] Existing technologies typically address this by enhancing heat dissipation structures, such as adding heat sinks, thermally conductive structures, or other auxiliary heat dissipation components, to reduce the impact of heat accumulation. However, these solutions usually rely on additional structural design and material configuration, resulting in high costs and complex implementation. Furthermore, they offer limited improvement for localized heating caused by transient load changes.

[0035] Therefore, how to balance display quality and power consumption control in high refresh rate display scenarios, and reduce local heat generation during the display panel driving process, remains a technical problem to be solved in this field.

[0036] To address the aforementioned technical issues, this application provides a driving control method, system, and display device for a display panel. Firstly, by identifying whether high-power characteristics exist in the current frame of the display, target frames that may increase the driving load can be screened from the display source, thereby improving the targeting of subsequent control. Secondly, when high-power characteristics are identified in the current frame of the display, the real-time operating current of the source driver is obtained, which further reflects the current driving load state, thus avoiding misjudgments caused by open-loop control based solely on the frame type. Furthermore, based on the comparison between the real-time operating current and a preset current threshold, a frame driving mode for N consecutive frames, starting with the next frame of the display, is determined. The number of low-power frames corresponding to different frame driving modes varies. At least one frame in the N consecutive frames is a low-power frame, allowing for selective insertion of low-power display processes while maintaining normal display, thus balancing display effect and power consumption control. Finally, during the time period corresponding to the low-power frame, the source driver is controlled to output a constant voltage corresponding to a black screen, and the gate driver is controlled to stop scanning. This accurately identifies and efficiently reduces the power consumption and temperature of the driving chip under heavy load, thereby improving the display reliability of the high refresh rate display panel.

[0037] The following detailed description, with reference to the figures, describes the driving control method, system, display device, computer-readable storage medium, and computer program product of the display panel proposed in this application.

[0038] See Figure 1 The diagram illustrates a flowchart of the driving control method for a display panel provided in an embodiment of this application. Specifically, see [link to relevant documentation]. Figure 1 This method can be executed by a timing controller or by a display panel or a display device including a display panel, and the method includes the following steps: Step 101: The timing controller identifies whether there are high power consumption characteristics in the current frame of the display screen.

[0039] The current frame display refers to the image displayed on the display panel, which is the content currently output by the display panel and shown to the user. It corresponds to the display result of the input image data in the current frame. The displayed image is the object of subsequent high-power feature identification.

[0040] High power consumption characteristics refer to screen features in the current frame that may significantly increase the load on the source driver. When the display screen has such characteristics, the source driver is prone to generating high instantaneous power density during the driving of the display panel, and may cause the temperature of the local area supporting the driver to rise. Therefore, further drive control is required in subsequent steps.

[0041] In the embodiments of this application, the display panel refers to a display device used to display images. During operation, it is driven by a source driver and a gate driver to complete the display output of the corresponding image.

[0042] Specifically, in step 101, the input image data corresponding to the current frame can be obtained first, and the input image data can be used as the corresponding data basis for the current frame display screen; then, the current frame display screen is analyzed and processed to determine whether the current frame display screen has high power consumption characteristics that will lead to increased driving load.

[0043] In one possible implementation, the timing controller identifies whether there are high-power characteristics in the current frame display by including: The timing controller determines the spatial characteristics of the current frame based on the current frame's display.

[0044] The timing controller identifies high-power characteristics in the current frame of the display based on spatial features.

[0045] Spatial features refer to characteristic information that reflects the spatial distribution of the displayed image, used to characterize the spatial distribution of each image content in the displayed image. In this embodiment, spatial features include at least line width and local contrast.

[0046] Line width refers to the dimensional characteristics of line images or striped graphics in the display screen in terms of width, and can be used to reflect the situation of thin lines, narrow lines or concentrated lines in the display screen; local contrast refers to the degree of difference in brightness or grayscale between adjacent local areas in the display screen, and can be used to reflect whether the changes in local areas of the display screen are relatively drastic.

[0047] Specifically, in this embodiment, the spatial features of the current frame display can be extracted first, including at least line width and local contrast. Then, based on the extracted line width and local contrast, feature analysis is performed on the current frame display. If the analysis results show that the spatial features of the current frame display meet the preset high power consumption feature conditions, then the display is identified as having high power consumption features.

[0048] For example, the preset high power consumption characteristic condition can be: when the line width in the display screen is less than the preset line width condition, and the local contrast of the corresponding area is greater than the preset contrast condition, the current frame of the display screen is identified as having high power consumption characteristics.

[0049] Step 102: When the timing controller detects high power consumption characteristics in the current frame display, it obtains the real-time operating current of the source driver.

[0050] The source driver is a driving circuit used to output driving signals to the data lines of the display panel. During the display process, the source driver provides corresponding data voltages to the display panel based on the display data to achieve the output of the display image. Its real-time operating current characterizes the load on the source driver during the current frame's display process.

[0051] In this embodiment, after identifying high-power consumption characteristics in the current frame display, the operating current information of the source driver in the current display state can be obtained to obtain the real-time operating current of the source driver. The obtained real-time operating current is used to reflect the actual driving load corresponding to the current frame display, thereby providing input basis for determining the frame driving mode of the display panel for the next N consecutive frames based on the comparison result of the real-time operating current and the preset current threshold.

[0052] Step 103: The timing controller determines the frame driving mode of N consecutive frames starting from the next displayed frame based on the comparison result between the real-time operating current and the preset current threshold.

[0053] Among them, the preset current threshold refers to the current threshold that is set in advance and used to compare and judge the real-time operating current of the source driver. It is used as a criterion for judging the load state during the driving process of the display panel.

[0054] In the embodiments of this application, the frame driving mode refers to the driving mode used to characterize the distribution relationship of low-power frames in N consecutive frames, and is used to reflect which frames need to be processed as low-power frames in the subsequent display of N consecutive frames.

[0055] Specifically, in step 103, the real-time operating current of the source driver obtained in step 102 is compared with a preset current threshold, and the frame driving mode for N consecutive frames starting with the next displayed frame is determined based on the comparison result. When the real-time operating current reaches or exceeds the condition corresponding to the preset current threshold, a frame driving mode matching the current load state can be determined; when the real-time operating current does not reach the corresponding condition, another frame driving mode corresponding to the current load state is determined. Through the above processing, the subsequent driving process of the display panel can be matched with the current actual load state, thereby providing a basis for subsequently determining the low-power frame in multiple consecutive frames.

[0056] In one possible implementation, the preset current threshold includes at least one current threshold. The timing controller determines a frame driving mode for N consecutive frames, starting with the next displayed frame, based on a comparison between the real-time operating current and the preset current threshold. This includes: The timing controller filters the real-time operating current to obtain the filtered real-time current value; based on the relationship between the real-time current value and the at least one current threshold, and the current frame driving mode of the display panel, it determines whether the frame driving mode of the N consecutive frames of the display screen is a light protection mode, an emergency protection mode, or a medium protection mode. Wherein, the light protection mode refers to using one frame out of every three consecutive frames as the low-power frame; the medium protection mode refers to using one frame out of every two consecutive frames as the low-power frame; the emergency protection mode refers to using at least two frames out of every three consecutive frames as the low-power frame, where N is an integer greater than 3.

[0057] In this embodiment, filtering refers to smoothing the acquired real-time operating current to reduce the impact of current fluctuations on subsequent judgment results. In this embodiment, the filtering process aims to reduce interference from instantaneous jitter or sampling fluctuations, making the current value used for subsequent comparison and judgment more stable.

[0058] Specifically, in this embodiment, after obtaining the real-time operating current of the source driver, the real-time operating current is first filtered to obtain a filtered real-time current value. Then, the filtered real-time current value is compared with at least one current threshold, and the frame driving mode of the N consecutive display frames is determined to be either a light protection mode, an emergency protection mode, or a medium protection mode based on the comparison result. By performing filtering before threshold comparison, the influence of instantaneous fluctuations in the real-time operating current on the judgment result can be reduced, thereby making the determined frame driving mode more stable.

[0059] Wherein, the light protection mode refers to using one frame out of every three consecutive frames as the low-power frame; the medium protection mode refers to using one frame out of every two consecutive frames as the low-power frame; the emergency protection mode refers to using at least two frames out of every three consecutive frames as the low-power frame, where N is an integer greater than 3.

[0060] For example, in one specific example, after obtaining the real-time operating current of the source driver, the real-time operating current can be digitally filtered, such as by IIR filtering, to obtain the filtered real-time current value.

[0061] In one possible implementation, the preset current threshold includes a first current threshold, a second current threshold, and a third current threshold, wherein the first current threshold is less than the second current threshold, and the second current threshold is less than the third current threshold; based on the comparison result between the filtered real-time current value and the preset current threshold, the frame driving mode of the N consecutive display frames is determined to be a light protection mode, an emergency protection mode, or a medium protection mode, including: When the real-time current value is greater than the first current threshold and less than or equal to the second current threshold, the frame driving mode is determined to correspond to the mild protection mode. When the real-time current value is greater than the second current threshold and less than or equal to the third current threshold, the frame driving mode is determined to correspond to the medium protection mode. When the real-time current value is greater than the third current threshold, the emergency protection mode corresponding to the frame driving mode is determined.

[0062] The first, second, and third current thresholds refer to multiple pre-set current thresholds used to divide the filtered real-time current values ​​into intervals. These multiple current thresholds characterize different levels of drive load intervals, allowing the appropriate frame driving mode to be determined based on the current load level.

[0063] In this embodiment, the light protection mode refers to the frame driving mode corresponding to the display panel being under a lower level of low-power control; the medium protection mode refers to the frame driving mode corresponding to the display panel being under a medium level of low-power control; and the emergency protection mode refers to the frame driving mode corresponding to the display panel being under a higher level of low-power control. These different protection modes characterize the distribution of low-power frames in subsequent consecutive frames of the display panel under different load levels. In this embodiment, the light protection mode, medium protection mode, and emergency protection mode are merely illustrative descriptions, and this application does not limit the naming of different frame driving modes.

[0064] Specifically, in this embodiment, after obtaining the filtered real-time current value, the filtered real-time current value can be compared with the first current threshold, the second current threshold, and the third current threshold; when the filtered real-time current value is greater than the first current threshold and less than or equal to the second current threshold, it is determined that the frame driving mode corresponds to the mild protection mode; when the filtered real-time current value is greater than the second current threshold and less than or equal to the third current threshold, it is determined that the frame driving mode corresponds to the moderate protection mode; when the filtered real-time current value is greater than the third current threshold, it is determined that the frame driving mode corresponds to the emergency protection mode. By the above method, the display panel can be switched to the frame driving mode matching the current load state according to the actual load level of the source driver.

[0065] See Figure 2 , which shows the schematic diagram of the frame driving mode determination process provided by the embodiment of the present application; in a specific example, the frame driving mode of the display panel can be determined according to the following process: First, initialize the threshold parameters in the current threshold register, where the first current threshold, the second current threshold, and the third current threshold can be respectively set as TH_low, TH_high, and TH_max, and further initialize the hysteresis Δ; then, read the ADC conversion value during the V_blanking period of each frame to obtain the current frame current I SEN ; Next, perform digital filtering on the current frame current, for example, use the IIR filtering method to obtain the filtered real-time current value I filt , which can be expressed as: I filt =α·I SEN + (1-α)·I filt_prev , where α represents the filtering coefficient, and I filt_prev represents the previous filtering result.

[0066] Subsequently, the corresponding mode can be updated according to the size relationship between the current mode and I filt , for example: when the current is the normal mode, if I filt >TH_high, switch to the moderate protection mode; if I filt >TH_low, switch to the mild protection mode; when the current is the mild protection mode, if I filt >TH_high, switch to the moderate protection mode, if I filt <TH_low -Δ, return to the normal mode; when the current is the moderate protection mode, if I filt >TH_max, switch to the emergency protection mode, if I filt <TH_high - Δ, return to the mild protection mode; when the current is the emergency protection mode, if I filt<TH_max - Δ, then return the medium protection mode.

[0067] In a possible implementation, the consecutive N frames refer to N display frames output adjacent to each other during the consecutive display process of the display panel, and N is an integer greater than 3.

[0068] Among them, the low-power frame refers to the display frame processed by using the low-power control method in the subsequent display process.

[0069] After the frame driving method of the display panel has been determined in step 103, at least one frame can be selected from the subsequent consecutive N frames as the low-power frame according to the frame driving method. That is to say, the frame driving method obtained in step 103 is further implemented on the specific frame-level arrangement, so as to determine which subsequent display frames need to be processed in the low-power mode. By this method, during the consecutive display process of the display panel, instead of uniformly performing low-power control on all display frames, the low-power frames can be selectively determined according to the current frame driving method.

[0070] That is to say, when the frame driving method corresponds to the mild protection mode, one frame can be determined as the low-power frame in every three consecutive frames; when the frame driving method corresponds to the medium protection mode, one frame can be determined as the low-power frame in every two consecutive frames; when the frame driving method corresponds to the emergency protection mode, at least two frames can be determined as the low-power frames in every three consecutive frames. By the above method, the frame driving method obtained in step 103 can be further implemented on the specific frame-level distribution, so as to provide a basis for the control actions in the subsequent low-power frames.

[0071] See Figure 3 , which shows a schematic diagram of the low-power frame distribution under different frame driving methods provided by the embodiments of the present application. In a specific example, the timing combination of the control signal can be generated according to the finally determined mode, and the driving mode of the next frame can be set. For example, the subsequent frame-level distribution switching can be realized by updating the frame counter; among them, in the normal mode, the forced black signal BLACK_FORCE = 0 can be set, and STV (start pulse signal) & CK (clock signal) are output normally, corresponding to normal display at 360 Hz; in the mild protection mode, the third frame in every three frames can be set as the low-power frame, that is, in this low-power frame, BLACK_FORCE = 1, and STV & CK are masked, and the other two frames are displayed normally; in the medium protection mode, the second frame in every two frames can be set as the low-power frame, that is, in this low-power frame, BLACK_FORCE = 1, and STV & CK are masked; in the emergency protection mode, the second and third frames in every three frames can be set as the low-power frames, that is, in the two frames, BLACK_FORCE = 1, and STV & CK are masked. It can be seen that in this specific example, different frame driving methods can correspond to different low-power frame distribution rules, so as to make the low-power processing intensity in the consecutive N frames match the current driving load level.

[0072] Step 104: The timing controller controls the source driver to output a constant voltage corresponding to the black screen during the time period corresponding to the low-power frame, according to the frame driving method, and controls the gate driver to stop scanning, so that the display panel enters the low-power display state.

[0073] In this embodiment, gate driver stopping scanning means that during the target low-power frame, the gate driver no longer performs line-by-line scanning drive on the display panel according to the normal display process. By stopping scanning, the driving activity of the display panel in that frame can be further reduced.

[0074] In this embodiment, the constant voltage corresponding to the black screen refers to the data line voltage that remains constant, corresponding to the black screen display state. The constant voltage is used to make the display panel present a black screen display state in the corresponding frame, thereby reducing the dynamic drive load of the source driver in that frame.

[0075] In this embodiment, the low-power display state refers to the display state that the display panel enters by reducing driving activity during a target low-power frame. In this state, the display panel displays the corresponding frame in a low-power manner.

[0076] Specifically, in step 104, after determining a frame as a low-power frame based on the frame driving method, during the time period corresponding to that low-power frame, the source driver is controlled to output a constant voltage corresponding to the black screen, while the gate driver is controlled to stop scanning, so that the display panel enters a low-power display state. In other words, in this step, on the one hand, by having the source driver output a constant voltage corresponding to the black screen in the low-power frame, the display panel displays a black screen in that frame; on the other hand, by controlling the gate driver to stop scanning, the scanning driving activity in that frame is reduced. Through the coordination of these two controls, the display panel can display in a low-power mode within the target low-power frame.

[0077] In one possible implementation, during a low-power frame, controlling the source driver to output a constant voltage corresponding to a black screen during the time period corresponding to the low-power frame includes: During the time period corresponding to the low-power frame, a forced black signal is output to the data forced black level circuit. The forced black signal is used to instruct the data forced black level circuit to replace the display data corresponding to the low-power frame with a preset black screen digital code, so that the source driver outputs the constant voltage during the low-power frame. The control terminal of the data forced black level circuit is used to receive the forced black signal.

[0078] Specifically, in this embodiment, after determining that a certain frame is a low-power frame, a forced black signal is first output to the data forced black level circuit during the time period corresponding to the low-power frame to replace the display data corresponding to the low-power frame with a preset black screen digital code; then, the replaced preset black screen digital code is output to the source driver, so that the source driver outputs a constant voltage corresponding to the black screen according to the preset black screen digital code. In other words, in this embodiment, the original image data is not continued to be output, but the original display data is replaced with the preset black screen digital code in the low-power frame, so that the display panel presents a black screen state in that frame.

[0079] See Figure 4 This diagram illustrates a low-power control timing diagram in emergency protection mode according to an embodiment of this application. In one specific example, in emergency protection mode, three consecutive frames can be arranged in the manner of "normal data—Black data (i.e., preset black screen digital code)—Black data", where normal data corresponds to normal display frames and Black data corresponds to low-power frames. When BLACK_FORCE=0, normal display data is output; when BLACK_FORCE=1, the display data corresponding to the low-power frame is replaced with the preset black screen digital code, and the preset black screen digital code is output, thereby causing the source driver to output a constant voltage corresponding to the black screen. At the same time, during the low-power frame corresponding to Black data, STV and CK are shielded, causing the gate driver to stop scanning. Thus, in this specific example, by replacing the display data corresponding to the low-power frame with the preset black screen digital code and cooperating with BLACK_FORCE signal control, the source driver can output a constant voltage corresponding to the black screen in the low-power frame.

[0080] In summary, the display panel driving control method provided in this application embodiment identifies high power consumption characteristics in the current frame of the display screen, and obtains the real-time operating current of the source driver when high power consumption characteristics are identified in the current frame of the display screen. Based on the comparison result between the real-time operating current and a preset current threshold, a frame driving method is determined to take the next frame of the display screen as the starting frame for N consecutive frames. Then, at least one frame in the N consecutive frames is determined to be a low power consumption frame. In the low power consumption frame, the source driver is controlled to output a constant voltage corresponding to the black screen and the gate driver is controlled to stop scanning. This enables the display panel to implement low power consumption control on some target frames during continuous display, thereby reducing power consumption and local temperature rise during the driving process and improving the reliability of the display panel in high refresh rate display scenarios.

[0081] See Figure 5This document illustrates a schematic diagram of the drive control system for a display panel provided in an embodiment of this application. In this embodiment, the drive control system may include a timing controller, a current detection circuit, a data forced black level circuit, a source driver, and a gate driver. The timing controller identifies whether a high-power characteristic exists in the current frame of the display. If the high-power characteristic is detected, the controller acquires the real-time operating current of the source driver. Based on a comparison between the real-time operating current and a preset current threshold, it determines a frame driving mode for N consecutive frames, starting with the next frame of the display. The next frame is the frame following the current frame. Different frame driving modes correspond to different numbers of low-power frames. In a protection mode, at least one frame in the N consecutive frames is controlled to be a low-power frame. According to the frame driving mode, the source driver outputs a constant voltage corresponding to the black screen during the time period corresponding to the low-power frame, and the gate driver stops scanning, thereby enabling the display panel to enter a low-power display state.

[0082] The data-forced black level circuit is used to replace the display data with a preset black screen digital code in low-power frames; the current detection circuit is used to detect the operating current of the source driver and output a detection signal corresponding to the operating current; the source driver is used to output a constant voltage corresponding to the black screen according to the preset black screen digital code; and the gate driver is used to stop scanning in low-power frames.

[0083] Specifically, the timing controller controls the source driver to output a constant voltage corresponding to a black screen during the time period corresponding to the low-power frame, including: outputting a forced black signal to the data forced black level circuit during the time period corresponding to the low-power frame, the forced black signal being used to instruct the source driver to replace the display data corresponding to the low-power frame with a preset black screen digital code; so that the source driver outputs the constant voltage during the low-power frame, and the control terminal of the data forced black level circuit is used to receive the forced black signal.

[0084] The data-forced black level circuit is used to replace display data with a preset black screen digital code in low-power frames, including: The data forced black level circuit replaces the display data corresponding to the low power frame with a preset black screen digital code within the time period corresponding to the low power frame according to the forced black signal.

[0085] The timing controller controls the gate driver to stop scanning, including: the timing controller outputs a gate shielding signal to the gate driver, the gate shielding signal being used to shield the gate driver's start pulse (STV) and clock signal (CK), causing the gate to stop scanning. In this embodiment, the timing controller can serve as the core control module of the system, used to complete high-power feature identification, current value acquisition, and low-power frame control signal generation. In one possible implementation, the timing controller may internally include a screen pattern recognition unit, a current monitoring interface, an adaptive control unit, and a timing generation unit. The screen pattern recognition unit is used to receive input image data in real time and analyze the spatial features of the image through a preset algorithm to identify whether there are high-power features in the displayed screen; the current monitoring interface may include an analog-to-digital converter for performing analog-to-digital conversion on the detection signal to obtain the real-time operating current of the source driver; the adaptive control unit is used to receive the identification result and the real-time current digital value, and determine the driving mode of N consecutive frames starting from the next frame in combination with a preset current threshold; the timing generation unit is used to generate normal image data output, a forced black signal BLACK_FORCE, and gate shielding signals STV & CK_MASK according to the determination result. Here, BLACK_FORCE can be understood as a forced black signal, used to control the output of black screen data in low-power frames; STV&CK_MASK can be understood as control signals that shield the start pulse signal STV and the clock signal CK.

[0086] In this embodiment, the current detection circuit is connected to the source driver and is used to detect the operating current of the source driver. In one possible implementation, the current detection circuit can amplify the voltage difference signal across the sampling resistor and output an analog voltage signal Vout, which is proportional to the real-time operating current of the source driver. The analog voltage signal Vout can be directly connected to the current monitoring interface inside the timing controller so that the real-time operating current of the source driver can be obtained after analog-to-digital conversion. With the above structure, the timing controller can further obtain real-time current information reflecting the current driving load state after recognizing that the display screen has high power consumption characteristics.

[0087] In this embodiment, the data forced black level circuit is located between the data output terminal of the timing controller and the source driver. The data input terminal of the data forced black level circuit is connected to the normal image data bus of the timing controller, and the control terminal is connected to the forced black signal BLACK_FORCE output by the timing controller. When BLACK_FORCE is invalid, the data forced black level circuit transmits the normal image data to the source driver; when BLACK_FORCE is valid, the data forced black level circuit replaces the output data with a preset black screen digital code, such as an all-zero code, so that the source driver outputs a constant voltage corresponding to the black screen during the low-power frame. With the above structure, the original display data can be switched to black screen data in the low-power frame, so that the display panel can enter the low-power display state.

[0088] In this embodiment, the gate driver is connected to a timing controller. The timing controller is also used to output a gate shielding signal during the time period corresponding to the low-power frame. The gate shielding signal is used to shield the start pulse signal and clock signal of the gate driver, causing the gate driver to stop scanning. The gate driver is used to receive the gate shielding signal STV&CK_MASK output by the timing controller. During the low-power frame, when the gate shielding signal is valid, the start pulse signal STV and clock signal CK of the gate driver can be shielded, causing the gate driver to stop scanning. At the same time, the source driver outputs a constant voltage corresponding to the black screen under the action of the data forced black level circuit, thereby causing the display panel to display a black screen in the corresponding frame and reducing driving activity.

[0089] Specifically, in the drive control system provided in this application embodiment, the screen pattern recognition unit in the timing controller first analyzes the input image data to identify high power consumption characteristics in the current frame display screen. When high power consumption characteristics are identified in the current frame display screen, the current detection circuit detects the operating current of the source driver and outputs the corresponding detection signal to the timing controller. After obtaining the real-time operating current of the source driver through the current monitoring interface, the timing controller can determine the frame driving mode of N consecutive frames starting from the next frame display screen based on the comparison result between the real-time operating current and the preset current threshold. When the frame driving mode is in protection mode, at least one frame in the N consecutive frames is controlled to be a low power consumption frame. Subsequently, during the time period corresponding to the low power consumption frame, the timing controller outputs the forced black signal BLACK_FORCE and the gate shielding signal STV&CK_MASK, so that the data forced black level circuit replaces the display data with the preset black screen digital code, the source driver outputs the constant voltage corresponding to the black screen, and the gate driver stops scanning, thereby realizing the low power consumption control of the display panel.

[0090] In summary, the display panel drive control system provided in this application embodiment, through the cooperation between the timing controller, current detection circuit, data forced black level circuit, source driver and gate driver, can determine a low power frame when the current frame of the display screen has high power consumption characteristics, in combination with the real-time operating current of the source driver, and realize constant voltage output of the black screen and stop scanning control during the time period corresponding to the low power frame, thereby enabling the display panel to enter a low power display state.

[0091] In a specific example, see Figure 6 The diagram shows a schematic of the current detection circuit provided in an embodiment of this application. In this embodiment, the current detection circuit is used to detect the operating current of the source driver and output a detection signal corresponding to the operating current, so that the timing controller can obtain the real-time operating current of the source driver. The operating current of the source driver can be denoted as... I SEN The detection signal can be an analog voltage signal. V out .

[0092] In this embodiment, the current detection circuit may include a sampling resistor, a current detection amplifier, and a low-pass filter circuit. One end of the low-pass filter circuit is connected to the output terminal of the current detection amplifier, and the other end of the low-pass filter circuit is connected to the input pin of the analog-to-digital converter within the timing controller. The sampling resistor... A sampling resistor is connected in series in the power supply circuit of the source driver to acquire the differential voltage signal corresponding to the operating current of the source driver. For example, the sampling resistor can be a precision sampling resistor, with a resistance value of 10mΩ and an accuracy of 1%. The two ends of the sampling resistor are respectively connected to the first and second input terminals of the current sensing amplifier, that is, the two ends of the sampling resistor can respectively form sampling nodes. and The current sense amplifier is used to amplify the differential voltage across the sampling resistor by a fixed factor and output an analog voltage to ground. The analog voltage to ground is then input to the input pin of the analog-to-digital converter in the timing controller after passing through the low-pass filter circuit. For example, the current sense amplifier can be an INA240, used to amplify the differential voltage across the sampling resistor.

[0093] Specifically, when the source driver is working, the operating current... I SEN Flow through sampling resistor R SENThis creates a differential voltage across the sampling resistor; the current sensing amplifier amplifies this differential voltage by a fixed factor, for example, 100 times, and outputs an analog voltage signal to ground. V out In one exemplary representation, an analog voltage signal V out The following relationship can be satisfied: V out = I SEN × R SEN ×Gain Here, Gain represents the amplification factor of the current-sensing amplifier. Therefore, it can amplify analog voltage signals. V out Operating current of the source driver I SEN Proportional.

[0094] In this embodiment, the analog voltage signal output by the current sensing amplifier V out The signal can also be filtered using a low-pass filter circuit. A simple RC low-pass filter structure can be used as an example to reduce high-frequency fluctuations in the detection signal, making the output analog voltage signal more stable. The analog voltage signal after low-pass filtering... V out It can be connected to the input of the built-in analog-to-digital converter of the timing controller.

[0095] In this embodiment, the timing controller can start the analog-to-digital converter during the vertical blanking period (VBK period) of each frame to process the analog voltage signal. V out An analog-to-digital (A / D) converter is performed to read the source driver operating current value of the current frame. The result of the A / D conversion can be used as the real-time operating current of the source driver and input to the subsequent control module in the timing controller for determining the driving mode of subsequent frames. In other words, in this embodiment, by setting a sampling resistor in the source driver power supply circuit and combining it with a current sense amplifier, a low-pass filter circuit, and the timing controller's built-in A / D converter, real-time detection of the source driver operating current can be achieved.

[0096] In one specific example, the data-forced black-level circuitry includes a multiplexer and a black-level register; The first input of the multiplexer is connected to the normal display data, the second input is connected to the output of the black level register, and the control terminal is connected to the forced black signal output by the timing controller. The black level register is used to store the preset black screen digital code.

[0097] In this embodiment, the multiplexer can be an N-bit 2-to-1 multiplexer array, where N can be the bit width of the normal display data, such as 10 bits; each multiplexer corresponds to one pixel data channel. Normal display data can be input to the first input of the multiplexer via the normal image data bus, and the preset black screen digital code stored in the black level register can be input to the second input of the multiplexer. The preset black screen digital code in the black level register can be pre-written via the I²C / SPI interface; for example, it can be written with an all-zero code corresponding to the black screen of the panel.

[0098] In this embodiment, the forced black signal output by the timing controller can be a BLACK_FORCE signal. The BLACK_FORCE signal is connected to the control terminals of each multiplexer, controlling the multiplexer to select between normal display data and the black level register output. When BLACK_FORCE is low, each multiplexer selects the normal display data input at the first input terminal, thus outputting normal image data. When BLACK_FORCE is high, each multiplexer selects the black level register output value input at the second input terminal, thus outputting a preset black screen digital code.

[0099] Specifically, see Figure 7 This diagram illustrates the structure of a data-forced black-level circuit provided in an embodiment of this application. In this structure, the normal image data bus can be represented as D0, D1, D2…DN, the black-level register is used to store a preset black screen digital code, and each multiplexer can be represented as MUX0, MUX1…MUXN. The outputs of each multiplexer are aggregated and output to the source driver. When BLACK_FORCE=0, the data-forced black-level circuit outputs normal image data; when BLACK_FORCE=1, the data-forced black-level circuit outputs the black-level register value, i.e., the constant value stored in the black-level register. Thus, the pixel data corresponding to the low-power frame can be forcibly replaced with the black screen digital code in the digital domain, so that the source driver outputs a constant voltage corresponding to the black screen according to the black screen digital code.

[0100] See Figure 8 The diagram shows a schematic of the structure of a display device provided in an embodiment of this application. The display device includes a display panel and a drive control system for the display panel in the above embodiment. The timing controller in the drive control system of the display panel is used to execute the drive control method of the display panel.

[0101] In this embodiment, the display panel can serve as a display execution component in a display device, used to display corresponding images under the drive of a source driver and a gate driver. The timing controller in the display panel's drive control system can serve as a control component in the display device, used to identify whether a high-power characteristic exists in the current frame of the display; if the high-power characteristic is detected in the current frame, the real-time operating current of the source driver is obtained; based on a comparison between the real-time operating current and a preset current threshold, a frame driving mode for N consecutive frames starting with the next frame of the display is determined; the next frame is the frame following the current frame; the number of low-power frames corresponding to different frame driving modes is different; at least one frame in the N consecutive frames is a low-power frame; according to the frame driving mode, the source driver is controlled to output a constant voltage corresponding to a black screen during the time period corresponding to the low-power frame, and the gate driver is controlled to stop scanning, so that the display panel enters a low-power display state.

[0102] In other words, in this embodiment, by integrating the aforementioned display panel drive control system into the display device, the display device can be equipped with the ability to identify high-power characteristics in the display screen and perform low-power frame control, thereby implementing low-power processing on some target frames during continuous display.

[0103] It should be noted that this application does not limit the specific type of display device. As long as it includes a display panel and the drive control system of the display panel, the technical solution of this application can be applied.

[0104] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0105] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0106] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0107] In the embodiments provided in this application, it should be understood that the disclosed apparatus / display system and method can be implemented in other ways. For example, the apparatus / display system embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling or direct coupling or communication connection may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0108] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0109] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0110] If an integrated module / unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0111] The implementation of all or part of the processes in the methods of the above embodiments can also be accomplished by a computer program product. When the computer program product runs on the display screen, it enables the display system to implement the steps in the various method embodiments described above.

[0112] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A driving control method for a display panel, characterized in that, The method includes: Identify whether there are high power consumption features in the current frame of the display. The high power consumption features refer to the screen features in the current frame of the display that cause an increase in the load on the source driver. If the high power consumption feature is detected in the current frame of the display, the real-time operating current of the source driver is obtained. Based on the comparison result between the real-time operating current and the preset current threshold, a frame driving mode for N consecutive frames starting from the next displayed frame is determined; the next frame is the frame following the current frame; the number of low-power frames corresponding to different frame driving modes is different; at least one of the N consecutive frames is a low-power frame. According to the frame driving method, the source driver is controlled to output a constant voltage corresponding to the black screen during the time period corresponding to the low power frame, and the gate driver is controlled to stop scanning so that the display panel enters a low power display state.

2. The method as described in claim 1, characterized in that, The process of identifying whether there are high-power characteristics in the current frame of the display includes: Based on the current frame display, determine the spatial features of the current frame display, wherein the spatial features include at least line width and local contrast. Based on the spatial features, identify whether there are high power consumption features in the current frame display.

3. The method as described in claim 1, characterized in that, The preset current threshold includes at least one current threshold. The step of determining the frame driving method for N consecutive frames, starting with the next displayed frame, based on the comparison result between the real-time operating current and the preset current threshold includes: The real-time operating current is filtered to obtain the filtered real-time current value. Based on the relationship between the real-time current value and the at least one current threshold, and the current frame driving mode of the display panel, determine whether the frame driving mode of the N consecutive frames of the display is a light protection mode, an emergency protection mode, or a medium protection mode. Wherein, the light protection mode refers to using one frame out of every three consecutive frames as the low-power frame; the medium protection mode refers to using one frame out of every two consecutive frames as the low-power frame; the emergency protection mode refers to using at least two frames out of every three consecutive frames as the low-power frame, where N is an integer greater than 3.

4. The method according to any one of claims 1 to 3, characterized in that, Controlling the source driver to output a constant voltage corresponding to the black screen during the time period corresponding to the low-power frame includes: During the time period corresponding to the low-power frame, a forced black signal is output to the data forced black level circuit. The forced black signal is used to instruct the data forced black level circuit to replace the display data corresponding to the low-power frame with a preset black screen digital code, so that the source driver outputs the constant voltage during the low-power frame. The control terminal of the data forced black level circuit is used to receive the forced black signal.

5. The method according to any one of claims 1 to 3, characterized in that, The control gate driver stops scanning, including: A gate shielding signal is output to the gate driver. The gate shielding signal is used to shield the start pulse and clock signal of the gate driver, so that the gate stops scanning.

6. A drive control system for a display panel, characterized in that, The system includes: A timing controller is configured to perform the method as described in any one of claims 1 to 5; A data-forced black level circuit is connected between the timing controller and the source driver, and is used to replace the display data with a preset black screen digital code in the low-power frame; A current detection circuit, connected to the source driver, is used to detect the operating current of the source driver and output a detection signal corresponding to the operating current to the timing controller, so that the timing controller can obtain the real-time operating current of the source driver. The source driver is used to output a constant voltage corresponding to the black screen according to the preset black screen digital code; The gate driver is used to stop scanning in the low-power frame.

7. The system as described in claim 6, characterized in that, The timing controller also includes a current monitoring interface, which includes an analog-to-digital converter for converting the detection signal into an analog-to-digital signal to obtain the real-time operating current of the source driver.

8. The system as described in claim 6, characterized in that, The timing controller is also used to output a gate shielding signal during the time period corresponding to the low-power frame. The gate shielding signal is used to shield the start pulse signal and clock signal of the gate driver, so that the gate driver stops scanning.

9. The system as described in claim 6, characterized in that, The data forced black level circuit includes a multiplexer and a black level register; The first input of the multiplexer is connected to the normal display data, the second input is connected to the output of the black level register, and the control terminal is connected to the forced black signal output by the timing controller. The black level register is used to store the preset black screen digital code.

10. The system according to any one of claims 6 to 8, characterized in that, The current detection circuit includes: a sampling resistor, a current detection amplifier, and a low-pass filter circuit; one end of the low-pass filter circuit is connected to the output terminal of the current detection amplifier, and the other end of the low-pass filter circuit is connected to the input pin of the analog-to-digital converter in the timing controller. The sampling resistor is connected in series in the power supply circuit of the source driver; the two ends of the sampling resistor are respectively connected to the first input terminal and the second input terminal of the current sensing amplifier; the current sensing amplifier is used to amplify the differential voltage on the sampling resistor by a fixed factor and output an analog voltage to ground; the analog voltage to ground is input to the input pin of the analog-to-digital converter in the timing controller after passing through the low-pass filter circuit; The timing controller starts the analog-to-digital converter during the vertical blanking period of each frame and reads the source driver operating current value of the current frame.

11. A display device, characterized in that, The display device includes a display panel and a drive control system for the display panel as described in any one of claims 6 to 10; The timing controller in the drive control system of the display panel is used to execute the drive control method of the display panel as described in any one of claims 1 to 5.

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