Control circuit and display device

Abstract

The present application discloses a control circuit and a display device. The control circuit is used to perform compensation control on the image of the display panel. The control circuit includes: a compensation module for receiving display data and providing compensation data based on the display data to compensate before the display panel displays the image; a repair module for receiving feedback data of the display panel displaying the image and providing repair data based on the feedback data to repair after the display panel displays the image; a linkage module connected to the compensation module at one end and to the repair module at the other end; the linkage module turns off the compensation module and the repair module when there is no fluctuation in the display data; the linkage module starts the repair module when the display data fluctuation range is within a first preset range; the linkage module starts the compensation module when the display data fluctuation range is within a second preset range; the first preset range is smaller than the second preset range. The technical solution of the present application can reduce the situation of excessive repair and compensation, reduce resource waste, and reduce power consumption.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and specifically relates to a control circuit and a display device. Background Art

[0002] In existing display products, as the refresh rate of the product continues to increase, the in-plane crosstalk of the display panel becomes increasingly serious. To address this, software and hardware measures are usually used to repair and compensate for the display image.

[0003] However, during the execution of software measures and hardware measures, it is easy for both to start and run at the same time, resulting in excessive repair and compensation of the display image, thereby causing a waste of resources and increasing power consumption. Summary of the Invention

[0004] The purpose of this application is to provide a control circuit that can effectively reduce the situation of excessive repair compensation, reduce resource waste, and reduce power consumption.

[0005] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by practice of the present application.

[0006] According to one aspect of an embodiment of the present application, the present application provides a control circuit for performing compensation control on an image of a display panel, the control circuit comprising:

[0007] a compensation module, the compensation module being configured to receive display data and provide compensation data to the display panel based on the display data, so as to compensate before the display panel displays an image;

[0008] a repair module, the repair module being configured to receive feedback data of the display panel during image display, and provide repair data to the display panel based on the feedback data, so as to repair the display panel after the image display;

[0009] a linkage module, one end of which is connected to the compensation module, and the other end of which is connected to the repair module;

[0010] The linkage module turns off the compensation module and the repair module when there is no fluctuation in the display data;

[0011] The linkage module starts the repair module when the fluctuation range of the display data is within the first preset range;

[0012] The linkage module activates the compensation module when the fluctuation range of the display data is within a second preset range, wherein the first preset range is smaller than the second preset range.

[0013] In one aspect, the control circuit further includes a system control chip, and the compensation module includes an image compensation algorithm unit, wherein the image compensation algorithm unit is connected to the system control chip, receives the display data provided by the system control chip, and generates the compensation data;

[0014] The repair module includes a power supply unit and an operational amplifier, the power supply unit is used to provide a DC voltage signal and a power supply voltage, the non-inverting input terminal of the operational amplifier receives the DC voltage signal, the inverting input terminal of the operational amplifier receives feedback data from the display panel, the positive voltage interface of the operational amplifier receives the power supply voltage, and the operational amplifier provides the repair data to the display panel based on the feedback data and the DC voltage signal;

[0015] The linkage module includes a first response switch, a first end of the first response switch is connected to the power supply unit, a second end of the first response switch is connected to the positive voltage interface of the operational amplifier, and a control end of the first response switch is connected to the compensation module.

[0016] In one aspect, the image compensation algorithm unit includes a detection subunit and a driving board, and the detection subunit and the driving board are both connected to the system control chip;

[0017] The driving board is further connected to the display panel, and receives the display data and provides the compensation data to the display panel based on the display data;

[0018] The detection subunit is connected to the control end of the first response switch, receives the display data, and provides a first control signal to the control end of the first response switch based on the display data. The control end of the first response switch responds to the first control signal, and the first response switch is turned on.

[0019] In one aspect, the linkage module also includes a second response switch, the first end of the second response switch is connected to the driving board, the second end of the second response switch is connected to the display panel, the detection subunit is also connected to the control end of the second response switch, the detection subunit provides a second control signal to the control end of the second response switch, the control end of the second response switch responds to the second control signal, and the second response switch is turned on.

[0020] In one aspect, the linkage module also includes a third response switch, a first end of the third response switch is connected to the line between the detection subunit and the second response switch, a second end of the third response switch is connected to the control end of the first response switch, and the control end of the third response switch is connected to the line between the second response switch and the display panel.

[0021] In one aspect, the linkage module also includes a third response switch, a first end of the third response switch is connected to the line between the second response switch and the display panel, a second end of the third response switch is connected to the control end of the first response switch, and the control end of the third response switch is connected to the line between the detection subunit and the second response switch.

[0022] In one aspect, the control circuit further includes a fourth response switch and a judgment module, wherein a first end of the fourth response switch is connected to the driving board, and a second end of the fourth response switch is connected to the display panel;

[0023] One end of the judgment module is connected to the display panel, and the other end of the judgment module is connected to the control end of the fourth response switch. The judgment module provides a conduction signal to the control end of the fourth response switch in the interval area between two adjacent display screens. The control end of the fourth response switch responds to the conduction signal, and the fourth response switch is turned on.

[0024] In one aspect, the image compensation algorithm unit includes a driver board, one end of the driver board is connected to the system control chip, and the other end of the driver board is connected to the display panel. The driver board receives the display data and provides the compensation data to the display panel based on the display data. The control end of the first response switch is connected to the line between the driver board and the display panel.

[0025] In one aspect, the image compensation algorithm unit includes a fifth response switch and a detection subunit, wherein a first end of the fifth response switch is connected to the driving board, and a second end of the fifth response switch is connected to the display panel;

[0026] One end of the detection subunit is connected to the system control chip, and the other end of the detection subunit is connected to the control end of the fifth response switch.

[0027] In addition, in order to solve the above problems, the present application also provides a display device, which includes a control chip and a control circuit as described above, the display panel includes a driving chip, and the compensation module of the control circuit is connected to the driving chip of the display panel.

[0028] In this application, the linkage module can control the activation and deactivation of the compensation module, and can also control the activation and deactivation of the repair module. When the displayed data is stable, the linkage module deactivates the compensation module and the repair module; when the displayed data fluctuates within a first preset range, the linkage module activates the repair module; and when the displayed data fluctuates within a second preset range, the linkage module activates the compensation module. Furthermore, because the first preset range is smaller than the second preset range, the linkage module can activate the compensation module or the repair module in situations where the displayed data fluctuates within different ranges, making it more targeted. This reduces the risk of over-compensation and repair, reduces resource waste, and lowers power consumption.

[0029] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0031] Figure 1 The figure schematically shows a circuit connection diagram of an embodiment of the control circuit of the present application.

[0032] Figure 2 The schematic diagram shows a circuit diagram in which the detection subunit in the control circuit of the present application simultaneously controls the first response switch and the second response switch.

[0033] Figure 3 The schematic diagram shows a circuit diagram in which a third response switch is provided between the first response switch and the second response switch in the control circuit of the present application.

[0034] Figure 4 The following schematically shows a circuit diagram of another embodiment of the control circuit of the present application in which a third response switch is provided between the first response switch and the second response switch.

[0035] Figure 5 The circuit diagram of the judgment module and the fourth response switch in the control circuit of the present application is schematically shown.

[0036] Figure 6 The schematic diagram shows the connection between the control end of the first response switch in the control circuit of the present application and the output end of the driving board.

[0037] Figure 7 The schematic diagram of the detection subunit connected to the fifth response switch in the control circuit of the present application is schematically shown.

[0038] Figure 8 The schematic diagram of repairing the common voltage curve in the control circuit of the present application is schematically shown.

[0039] Figure 9 The schematic diagram of the operational amplifier in the control circuit of the present application is schematically shown.

[0040] Figure 10 The schematic diagram of the display device of the present application is schematically shown.

[0041] The following are the descriptions of the reference numerals:

[0042] 100, display panel; 200, compensation module; 300, repair module; 400, linkage module; 500, system control chip; 600, judgment module; C, capacitor; R1, first resistor; R2, second resistor;

[0043] 210, image compensation algorithm unit; 310, power supply unit; 320, operational amplifier; T1, first response switch; T2, second response switch; T3, third response switch; T4, fourth response switch; T5, fifth response switch; 211, detection subunit; 212, drive board; 110, common voltage curve; 321, repair data curve. DETAILED DESCRIPTION

[0044] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example 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 so that this application will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0045] Example 1

[0046] See Figure 1 As shown, a control circuit is used to perform compensation control on the image of the display panel. The control circuit includes: a compensation module 200, a repair module 300 and a linkage module 400.

[0047] The compensation module 200 is used to receive display data and provide compensation data to the display panel 100 based on the display data to compensate before the display panel 100 displays the picture; the compensation module 200 can compensate for the display picture through the compensation data when the picture has not yet been displayed, with the focus on pre-compensation. The compensation module 200 can be a software measure.

[0048] The repair module 300 is used to receive feedback data from the display panel 100 during image display and, based on the feedback data, provide repair data to the display panel 100 to repair the image after it has been displayed. The repair module 300 focuses on post-processing. After an image has already been displayed on the display panel 100, the feedback data can be used to quickly repair the displayed image and restore it to normal. The repair module 300 can be a hardware measure. The feedback data can be the common voltage that drives the display panel 100 for image display. This common voltage is prone to fluctuations, and the repair data can be used to repair this common voltage.

[0049] One end of the linkage module 400 is connected to the compensation module 200, and the other end is connected to the repair module 300. When the display data does not fluctuate, the linkage module 400 turns off the compensation module 200 and the repair module 300. The display data can be understood as the brightness of the display screen, or as the area of ​​the display area occupied by the illuminated display screen on the entire display panel 100. As for data fluctuations, it can be understood as the fluctuations in brightness and the changes in the illuminated area. When the display data does not fluctuate, it can be considered that the brightness and the illuminated area have basically no ups and downs, or the fluctuations are very small. At this time, there is no need to compensate and repair the picture. The compensation module 200 and the repair module 300 are turned off by the linkage module 400 to reduce power consumption.

[0050] The first preset range is smaller than the second preset range.

[0051] When the fluctuation range of the display data is within the first preset range, the linkage module 400 starts the repair module 300 . At this time, the fluctuation of the display data is slight, and the image can be repaired by starting the repair module 300 .

[0052] When the display data fluctuation range is within the second preset range, the linkage module 400 activates the compensation module 200 . This indicates that the display data fluctuates greatly, and the image can be repaired by activating the compensation module 200 .

[0053] In this embodiment, the linkage module 400 can control the activation and deactivation of the compensation module 200 and the repair module 300. When the display data is stable, the linkage module 400 deactivates the compensation module 200 and the repair module 300. When the display data fluctuates within a first preset range, the linkage module 400 activates the repair module 300. When the display data fluctuates within a second preset range, the linkage module 400 activates the compensation module 200. Furthermore, because the first preset range is smaller than the second preset range, the linkage module 400 can activate the compensation module 200 or the repair module 300 in response to different fluctuation ranges of the display data, providing a more targeted approach. This reduces over-compensation, resource waste, and power consumption.

[0054] In one embodiment of the present application, the control circuit further includes a system control chip 500 (System on Chip), which provides display data for controlling the display screen. The compensation module 200 includes an image compensation algorithm (ICA) unit 210. The image compensation algorithm unit 210 is connected to the system control chip 500 and receives the display data provided by the system control chip 500. The image compensation algorithm unit 210 generates compensation data. The image compensation algorithm unit 210 can detect whether there is any abnormal data in the display data and perform repairs on the abnormal data.

[0055] The repair module 300 includes a power supply unit 310 and an operational amplifier 320 (Operational Amplifier). The power supply unit 310 can be understood as a DC-DC converter. The power supply unit 310 is used to provide a DC voltage signal and a power supply voltage. The same-direction input terminal of the operational amplifier 320 receives the DC voltage signal, the reverse input terminal of the operational amplifier 320 receives the feedback data of the display panel 100, and the positive voltage interface of the operational amplifier 320 receives the power supply voltage. The operational amplifier 320 provides repair data to the display panel 100 based on the feedback data and the DC voltage signal; the feedback data can be a common voltage. The fluctuation of the common voltage can affect the display screen and easily cause signal crosstalk. The operational amplifier 320 can compensate for the fluctuation of the common voltage in reverse and balance the fluctuation of the common voltage. For example, the common voltage is a straight line when it is output. Due to fluctuations, the waveform of the common voltage is upward. At this time, the repair data can provide a downward waveform, thereby balancing the upward fluctuation of the common voltage and ensuring that the common voltage is a straight line.

[0056] See Figure 8 As shown, the solid line is the common voltage curve 110 , and the dotted line is the repair data curve 321 . It can be seen that the repair data inversely compensates the common voltage, thereby reducing the fluctuation of the common voltage curve 110 .

[0057] See Figure 9 As shown, the repair module 300 may further include a capacitor C, a first resistor R1, and a second resistor R2. One electrode plate of the capacitor C is connected to the display panel 100 to receive feedback data from the display panel 100. The other electrode plate of the capacitor C is connected to one end of the first resistor R1, and the other end of the first resistor R1 is connected to the inverting input terminal. One end of the second resistor R2 is connected to the line between the first resistor R1 and the inverting input terminal, and the other end of the second resistor R2 is connected to the output terminal of the operational amplifier 320.

[0058] The linkage module 400 includes a first response switch T1. The first end of the first response switch T1 is connected to the power supply unit 310, the second end of the first response switch T1 is connected to the positive voltage interface of the operational amplifier 320, and the control end of the first response switch T1 is connected to the compensation module 200. The power supply to the operational amplifier 320 can be controlled by turning the first response switch T1 on and off. The signal of the linkage module 400 comes from the compensation module 200. Therefore, it can be seen that the compensation module 200 can control the on and off of the first response switch T1. For example, the compensation module 200 can receive display data, analyze abnormal data in the display data, and select to start the repair module 300 based on the fluctuation size of the abnormal data. In other words, the compensation module 200 controls the repair module 300 through the linkage module 400.

[0059] In one embodiment of the present application, the image compensation algorithm unit 210 includes a detection subunit 211 and a driving board 212 (Tcon), both of which are connected to the system control chip 500; the driving board 212 is also connected to the display panel 100, and the driving board 212 receives display data and provides compensation data to the display panel 100 based on the display data.

[0060] The detection subunit 211 is connected to the control terminal of the first response switch T1. The detection subunit 211 receives display data and, based on the display data, provides a first control signal to the control terminal of the first response switch T1. The control terminal of the first response switch T1 responds to the first control signal, turning on the first response switch T1. The detection subunit 211 controls the first response switch T1 via the first control signal, which can be either a high or low level. When the first control signal is not provided, the first response switch T1 is disconnected, and the repair module 300 does not participate in the repair process.

[0061] In addition, the detection subunit 211 may first detect and analyze the display data, analyze the abnormality in the display data, and then send the abnormality to the driving board 212, so that the display data is compensated by the driving board 212.

[0062] See Figure 2 As shown, in one embodiment of the present application, the linkage module 400 further includes a second response switch T2. A first end of the second response switch T2 is connected to the driver board 212, and a second end of the second response switch T2 is connected to the display panel 100. The detection subunit 211 is further connected to the control end of the second response switch T2. The detection subunit 211 provides a second control signal to the control end of the second response switch T2. The control end of the second response switch T2 responds to the second control signal, and the second response switch T2 is turned on. The second response switch T2 can control the on-off between the driver board 212 and the display panel 100.

[0063] As can be seen from the above, the linkage module 400 can control both the loading of compensation data and the loading of repair data to the display panel 100. Since both the first response switch T1 and the second response switch T2 are controlled by the detection subunit 211, one of the first control signal and the second control signal is at a high level and the other is at a low level.

[0064] For example, the first control signal is at a low level, and the second control signal is at a high level.

[0065] When the display data does not fluctuate, the detection subunit 211 does not provide a level signal, that is, the detection subunit 211 does not provide the first control signal or the second control signal. The first response switch T1 and the second response switch T2 are both disconnected, and the compensation module 200 and the repair module 300 are turned off to reduce power consumption.

[0066] When the display data fluctuation range is within the first preset range, the detection subunit 211 provides a first control signal, ie, a low level, and the first response switch T1 is turned on. The image can be repaired by starting the repair module 300 .

[0067] When the display data fluctuation range is within the second preset range, the detection subunit 211 provides a second control signal, ie, a high level, and the second response switch T2 is turned on to start the compensation module 200 ; by starting the compensation module 200 , the image can be repaired.

[0068] See Figure 3 As shown, in one embodiment of the present application, the linkage module 400 further includes a third response switch T3. A first end of the third response switch T3 is connected to the circuit between the detection subunit 211 and the second response switch T2. A second end of the third response switch T3 is connected to the control end of the first response switch T1. The control end of the third response switch T3 is connected to the circuit between the second response switch T2 and the display panel 100. By configuring the third response switch T3, one of the first response switch T1 and the second response switch T2 can be turned on.

[0069] For example, when the control terminal of the third response switch T3 is at a low level, the first and second terminals of the third response switch T3 are conductive. The detection subunit 211 preferentially controls the first response switch T1 and indirectly controls the second response switch T2 via the third response switch T3. The compensation data output by the driver board 212 is at a high level. After the detection subunit 211 controls the second response switch T2 to be conductive, the driver board 212 outputs the compensation data. When the control terminal of the third response switch T3 receives a high level, the third response switch T3 is disconnected. The control terminal of the second response switch T2 does not receive a signal from the detection subunit 211, the second response switch T2 is disconnected, and the repair module 300 is turned off. As a result, the compensation module 200 is turned on, while the repair module 300 is turned off.

[0070] If the control signal output by the detection subunit 211 does not turn on the second response switch T2, and the driver board 212 does not output a signal, it can be understood that the control terminal of the third response switch T3 receives a low level, and the first and second terminals of the third response switch T3 are conductive. The control terminal of the first response switch T1 can receive the control signal from the detection subunit 211, and the first and second terminals of the first response switch T1 are conductive. The repair module 300 receives the power supply voltage, and the inverting operational amplifier is activated, providing repair data to the display panel 100. This results in the compensation module 200 being deactivated and the repair module 300 being activated.

[0071] The first response switch T1 and the second response switch T2 can be of the same model and both are turned on when a high level is applied. If the display data detected and identified by the detection subunit 211 is normal and has little fluctuation, the detection subunit 211 outputs a low level, the second response switch T2 is turned off, and the control terminal of the third response switch T3 receives a low level. Although the third response switch T3 is turned on, the control terminal acting on the first response switch T1 is still at a low level, and the repair module 300 is turned off. This effectively shuts down both the compensation module 200 and the repair module 300.

[0072] See Figure 4 As shown, in one embodiment of the present application, the linkage module 400 further includes a third response switch T3. A first end of the third response switch T3 is connected to the circuit between the second response switch T2 and the display panel 100. A second end of the third response switch T3 is connected to the control end of the first response switch T1. The control end of the third response switch T3 is connected to the circuit between the detection subunit 211 and the second response switch T2. When the control end of the third response switch T3 receives a high level, the first end and the second end of the third response switch T3 are conductive.

[0073] After the detection subunit 211 detects an abnormal display data, if the display data fluctuates within a first preset range, the detection subunit 211 outputs a high level. At this point, the second response switch T2 is disconnected, the third response switch T3 is turned on, and the driver board 212 outputs a low level. After the control terminal of the first response switch T1 receives a low level, the first response switch T1 turns on. This activates the repair module 300 and disables the compensation module 200.

[0074] When the display data fluctuates within the second preset range, the detection subunit 211 outputs a low level, the second response switch T2 turns on, and the third response switch T3 turns off. The driver board 212 outputs high-level compensation data, and the repair module 300 outputs no data. This effectively disables the repair module 300 and activates the compensation module 200.

[0075] When the displayed data is normal, the detection subunit 211 has no level output, and the second response switch T2 and the third response switch T3 are both closed.

[0076] See Figure 5 As shown, during the process of loading and switching compensation data, the compensation module 200 is prone to display anomalies due to data changes. To this end, in one embodiment of the present application, the control circuit further includes a fourth response switch T4 and a judgment module 600. The first end of the fourth response switch T4 is connected to the driver board 212, and the second end of the fourth response switch T4 is connected to the display panel 100. One end of the judgment module 600 is connected to the display panel 100, and the other end of the judgment module 600 is connected to the control end of the fourth response switch T4. The judgment module 600 provides a conduction signal to the control end of the fourth response switch T4 in the gap between two adjacent display images. The control end of the fourth response switch T4 responds to the conduction signal, and the fourth response switch T4 is turned on. The judgment module 600 detects whether the current image is in the V blanking region, that is, whether it is in the gap between two display images. If it is in the V blanking region, the judgment module 600 outputs a high level, and the fourth response switch T4 is turned on, controlling the compensation module 200 to switch and output the compensation data. If the current state is not in the V blanking region, the determination module 600 outputs a low level, the fourth response switch T4 is disconnected, and the compensation module 200 cannot output compensation data. Since no image is displayed in the V blanking region, display anomalies caused by the compensation module 200 turning on and off are avoided.

[0077] See Figure 6As shown, in one embodiment of the present application, the image compensation algorithm unit 210 includes a driver board 212. One end of the driver board 212 is connected to the system control chip 500, and the other end of the driver board 212 is connected to the display panel 100. The driver board 212 receives display data and provides compensation data to the display panel 100 based on the display data. The control end of the first response switch T1 is connected to the circuit between the driver board 212 and the display panel 100. The conduction of the first response switch T1 is controlled by the level of the compensation data.

[0078] For example, when the control terminal of the first response switch T1 is at a low level, the first and second terminals of the first response switch T1 are conductive. When the driver board 212 is operating, the compensation data level is high. After the control terminal of the first response switch T1 receives the high-level compensation data, the first response switch T1 is disconnected. At this point, the compensation module 200 is activated, and the repair module 300 is deactivated.

[0079] When the driving board 212 is not working, no compensation data is output, the control terminal of the first response switch T1 receives a low level, the first response switch T1 is turned on, and the repair module 300 outputs the repair data. At this time, the compensation module 200 is turned off and the repair module 300 is turned on.

[0080] See Figure 7 As shown, further, in one embodiment of the present application, the image compensation algorithm unit 210 includes a fifth response switch T5 and a detection subunit 211, a first end of the fifth response switch T5 is connected to the driving board 212, and a second end of the fifth response switch T5 is connected to the display panel 100; one end of the detection subunit 211 is connected to the system control chip 500, and the other end of the detection subunit 211 is connected to the control end of the fifth response switch T5.

[0081] The detection subunit 211 identifies and detects abnormal fluctuations in the display data. After the detection subunit 211 outputs a high level, the control terminal of the second response switch T2 receives the high level, turning on the second response switch T2. This activates the compensation module 200 and outputs the compensation data, which is at a high level. After the control terminal of the first response switch T1 receives the high level, the first response switch T1 turns off, shutting down the repair module 300.

[0082] In the above embodiment, the control terminal of the general response switch is the gate, the first terminal is the source, and the second terminal is the drain. Alternatively, the first terminal is the drain and the second terminal is the source.

[0083] Example 2

[0084] See Figure 10As shown, the present application also provides a display device, which includes a display panel and the above-mentioned control circuit, the display panel includes a driving chip, the compensation module 200 of the control circuit is connected to the driving chip of the display panel, and the repair module 300 of the control circuit is directly connected to the common voltage line in the display panel.

[0085] For other specific implementations and beneficial effects of the display device, please refer to the above-mentioned control circuit solution, which will not be described in detail here.

[0086] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of this application and include common knowledge or customary techniques in the art that are not disclosed herein.

[0087] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A control circuit, characterized in that: The control circuit is used to perform compensation control on the image of the display panel, and the control circuit includes: a compensation module, the compensation module being configured to receive display data and provide compensation data to the display panel based on the display data, so as to compensate before the display panel displays an image; a repair module, the repair module being configured to receive feedback data of the display panel during image display, and provide repair data to the display panel based on the feedback data, so as to repair the display panel after the image display; a linkage module, one end of which is connected to the compensation module, and the other end of which is connected to the repair module; The linkage module turns off the compensation module and the repair module when there is no fluctuation in the display data; The linkage module starts the repair module when the fluctuation range of the display data is within the first preset range; The linkage module activates the compensation module when the fluctuation range of the display data is within a second preset range, wherein the first preset range is smaller than the second preset range.

2. The control circuit according to claim 1, wherein: The control circuit further includes a system control chip, and the compensation module includes an image compensation algorithm unit, the image compensation algorithm unit is connected to the system control chip, the image compensation algorithm unit receives the display data provided by the system control chip, and the image compensation algorithm unit generates the compensation data; The repair module includes a power supply unit and an operational amplifier, the power supply unit is used to provide a DC voltage signal and a power supply voltage, the non-inverting input terminal of the operational amplifier receives the DC voltage signal, the inverting input terminal of the operational amplifier receives feedback data from the display panel, the positive voltage interface of the operational amplifier receives the power supply voltage, and the operational amplifier provides the repair data to the display panel based on the feedback data and the DC voltage signal; The linkage module includes a first response switch, a first end of the first response switch is connected to the power supply unit, a second end of the first response switch is connected to the positive voltage interface of the operational amplifier, and a control end of the first response switch is connected to the compensation module.

3. The control circuit according to claim 2, characterized in that: The image compensation algorithm unit includes a detection subunit and a driving board, and both the detection subunit and the driving board are connected to the system control chip; The driving board is further connected to the display panel, and receives the display data and provides the compensation data to the display panel based on the display data; The detection subunit is connected to the control end of the first response switch, receives the display data, and provides a first control signal to the control end of the first response switch based on the display data. The control end of the first response switch responds to the first control signal, and the first response switch is turned on.

4. The control circuit according to claim 3, characterized in that: The linkage module also includes a second response switch, a first end of the second response switch is connected to the driving board, and a second end of the second response switch is connected to the display panel. The detection subunit is also connected to the control end of the second response switch. The detection subunit provides a second control signal to the control end of the second response switch. The control end of the second response switch responds to the second control signal, and the second response switch is turned on.

5. The control circuit according to claim 4, characterized in that: The linkage module also includes a third response switch, a first end of the third response switch is connected to the line between the detection subunit and the second response switch, a second end of the third response switch is connected to the control end of the first response switch, and the control end of the third response switch is connected to the line between the second response switch and the display panel.

6. The control circuit according to claim 4, characterized in that: The linkage module also includes a third response switch, a first end of the third response switch is connected to the line between the second response switch and the display panel, a second end of the third response switch is connected to the control end of the first response switch, and the control end of the third response switch is connected to the line between the detection subunit and the second response switch.

7. The control circuit according to claim 3, characterized in that: The control circuit further includes a fourth response switch and a judgment module, wherein a first end of the fourth response switch is connected to the driving board, and a second end of the fourth response switch is connected to the display panel; One end of the judgment module is connected to the display panel, and the other end of the judgment module is connected to the control end of the fourth response switch. The judgment module provides a conduction signal to the control end of the fourth response switch in the interval area between two adjacent display screens. The control end of the fourth response switch responds to the conduction signal, and the fourth response switch is turned on.

8. The control circuit according to claim 2, wherein: The image compensation algorithm unit includes a driving board, one end of which is connected to the system control chip, and the other end of which is connected to the display panel. The driving board receives the display data and provides the compensation data to the display panel based on the display data. The control end of the first response switch is connected to the line between the driving board and the display panel.

9. The control circuit according to claim 8, characterized in that: The image compensation algorithm unit includes a fifth response switch and a detection subunit, wherein a first end of the fifth response switch is connected to the driving board, and a second end of the fifth response switch is connected to the display panel; One end of the detection subunit is connected to the system control chip, and the other end of the detection subunit is connected to the control end of the fifth response switch.

10. A display device, characterized in that: The display device includes a display panel and the control circuit according to any one of claims 1 to 9, the display panel includes a driver chip, and the compensation module of the control circuit is connected to the driver chip of the display panel.

Images