Driving circuit, driving method of display panel and display device

Abstract

The application discloses a driving circuit, a driving method of a display panel and a display device, and relates to the technical field of display. The driving circuit comprises a first control module and an analog module. When a source driving module outputs a first voltage signal, the first control module is in an off state, an output end of the analog module is not connected with an input end of a timing control module, and the input end of the timing control module receives the first voltage signal. When the source driving module outputs a second voltage signal, the first control module is in an on state, the output end of the analog module is connected with the input end of the timing control module, the analog module outputs a third voltage signal to the input end of the timing control module, and the third voltage signal is the same as the first voltage signal. Through the driving circuit, a worker can quickly determine the position of an abnormal source driving module in the display panel, and the cost of repairing the display device is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a driving circuit, a driving method of display panel and a display device. BACKGROUND

[0002] In the existing display module, in addition to the power driving module (Power IC) providing driving voltage for each circuit, the timing control module (Tcon IC) and the source driving module (Source IC) are the two most important modules, and the timing control module and the source driving module are directly connected through certain signals. The lock signal is a typical handshake signal between the timing control module and the source driving module. Only when the source driving module works normally, the lock signal is normally output, and the timing control module can correctly control the timing after receiving the lock signal, so that the display module can work normally.

[0003] However, when a source driving module works abnormally, the lock signal cannot be normally output, and the timing control module outputs an abnormal signal after receiving the abnormal lock signal, which causes the display module to be unable to display and display abnormally. At this time, the display module needs to be disassembled to detect and check the source driving module one by one. The detection process not only consumes time, but also may damage the remaining driving modules in the disassembly and detection process. Not only does it cause irreversible damage to the display module, but also increases the cost of display module repair. SUMMARY

[0004] The purpose of the present application is to provide a driving circuit, a driving method of display panel and a display device, which can quickly determine the position of the abnormal source driving module in the display panel by setting the driving circuit, thereby reducing the cost of display device repair.

[0005] The application discloses a driving circuit applied to a display device, the display device comprising a timing control module and a source driving module, the driving circuit being arranged between the timing control module and the source driving module, the driving circuit comprising a first control module and an analog module, a control end of the first control module being connected with an output end of the source driving module, an input end of the first control module being connected with an output end of the analog module, and an output end of the first control module being connected with an input end of the timing control module; wherein when the source driving module outputs a first voltage signal, the first control module is in an off state, the output end of the analog module is not connected with the input end of the timing control module, and the input end of the timing control module receives the first voltage signal; when the source driving module outputs a second voltage signal, the first control module is in an on state, the output end of the analog module is connected with the input end of the timing control module, and the analog module outputs a third voltage signal to the input end of the timing control module, the third voltage signal being the same as the first voltage signal.

[0006] Optionally, the driving circuit further comprises a first diode, a second diode, a third diode and a first ground end, the first ground end being connected with the output end of the first control module, an input end of the first diode being connected with the output end of the source driving module, an output end of the first diode being connected with the control end of the first control module, an input end of the second diode being connected with the output end of the source driving module, an output end of the second diode being connected with the input end of the timing control module, and an input end of the third diode being arranged between the output end of the first control module and the first ground end, and an output end of the third diode being arranged between the output end of the second diode and the input end of the timing control module.

[0007] Optionally, the driving circuit further comprises a storage capacitor and a second control module, an input end of the storage capacitor being arranged between the output end of the source driving module and the input end of the first diode, an output end of the storage capacitor being arranged between an input end of the second control module and an output end of the first diode, a control end of the second control module being connected with the output end of the source driving module, and an output end of the second control module being connected with the control end of the first control module; wherein when the source driving module outputs a first voltage signal, the second control module is in an off state, and the source driving module continuously charges the storage capacitor; when the source driving module outputs a second voltage signal, the second control module is in an on state, the output end of the storage capacitor is connected with the control end of the first control module to make the first control module in an on state, and the output end of the analog module is connected with the input end of the timing control module.

[0008] Optionally, the driving circuit further comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor and a second ground terminal, the second ground terminal is arranged between the input terminal of the storage capacitor and the output terminal of the source driving module, the input terminal of the first resistor is connected with the output terminal of the source driving module, the output terminal of the first resistor is connected with the input terminal of the first diode, the input terminal of the second resistor is arranged between the output terminal of the first resistor and the input terminal of the first diode, the output terminal of the second resistor is arranged between the input terminal of the storage capacitor and the second ground terminal, the input terminal of the third resistor is connected with the output terminal of the source driving module, the output terminal of the third resistor is connected with the control terminal of the second control module, the input terminal of the fourth resistor is connected with the output terminal of the second control module, the output terminal of the fourth resistor is connected with the control terminal of the first control module, the input terminal of the fifth resistor is connected with the output terminal of the first control module, the output terminal of the fifth resistor is connected with the first ground terminal, the input terminal of the third diode is arranged between the output terminal of the first control module and the input terminal of the fifth resistor, the input terminal of the sixth resistor is connected with the output terminal of the second diode, the output terminal of the sixth resistor is connected with the input terminal of the timing control module, and the output terminal of the third diode is arranged between the input terminal of the sixth resistor and the output terminal of the second diode.

[0009] Optionally, the first control module is an N-type triode.

[0010] Optionally, the first control module is a P-type triode, and the second control module is an N-type triode.

[0011] The application further discloses a driving method of a display panel, which is applied to the display panel and comprises the following steps:

[0012] detecting a voltage value of a Lock signal;

[0013] controlling an analog circuit arranged between an output terminal of a source driving module and an input terminal of a timing control module to start up based on the voltage value of the Lock signal;

[0014] outputting an analog voltage signal to the timing control module through the analog circuit;

[0015] Optionally, the analog circuit starts up when the voltage value of the Lock signal is less than a normal range value.

[0016] Optionally, the step of detecting the voltage value of the Lock signal comprises the following steps:

[0017] previously arranging an analog circuit for simulating the Lock signal between the output terminal of the source driving module and the input terminal of the timing control module.

[0018] Optionally, the step of controlling the starting of the analog circuit arranged between the output end of the source driving module and the input end of the timing control module based on the voltage value of the Lock signal comprises:

[0019] inputting the voltage value of the Lock signal to the analog circuit;

[0020] based on the input voltage value of the Lock signal, when the voltage value is less than the normal range, the analog circuit starts to work and outputs an analog voltage signal of a normal value of the analog Lock signal to the timing control module; when the voltage value is in the normal range, the analog circuit stops working.

[0021] The application further discloses a display device comprising a display panel and the driving circuit.

[0022] Compared with the prior solution of disassembling the display module one by one to determine the abnormal source driving module, the display device of the application can output an analog signal to the timing control module to make it continue to work normally when the abnormal source driving module appears, so that the area corresponding to the normal source driving module on the display device can still continue to display the picture, while the area corresponding to the abnormal source driving module cannot display the picture, thereby enabling the staff to quickly determine the position of the abnormal source driving module in the display panel, reducing the cost of display device repair to a certain extent, and without causing irreversible damage to the display device. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and constitute a part of the specification, serve to explain the principles of the application together with the text. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0024] Figure 1 is a structural schematic diagram of a driving circuit of a first embodiment of the application;

[0025] Figure 2 is a structural schematic diagram of a driving circuit of a second embodiment of the application;

[0026] Figure 3 is a step flow chart of a driving method of a display panel of a third embodiment of the application;

[0027] Figure 4is another step flow chart of a driving method of a display panel of a third embodiment of the present application;

[0028] Figure 5 is a structural schematic diagram of a display device of a fourth embodiment of the present application.

[0029] Wherein, 100, driving circuit;110, first control module;120, analog module;130, second control module;200, display panel;300, display device. DETAILED DESCRIPTION

[0030] It needs to be understood that the terms used herein, the specific structure and function details disclosed, are only for the purpose of describing specific embodiments, and are representative, but the present application can be embodied in many alternative forms, and should not be interpreted as being limited to the embodiments described herein.

[0031] In the description of the present application, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating relative importance, or implying the number of the indicated technical features. Therefore, unless otherwise specified, the features limited by "first", "second" can explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "includes" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof can exist or be added.

[0032] In addition, the terms indicating the orientation or positional relationship of "center", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are described based on the orientation or relative position relationship shown in the drawings, and are only for the convenience of the simplified description of the present application, and are not intended to indicate that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] In addition, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connect" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] The present application will be described in detail below with reference to the drawings and optional embodiments, and it should be noted that the embodiments described below or the technical features between them can be combined arbitrarily to form new embodiments without conflict.

[0035] As Figure 1 shown, as the first embodiment of the present application, a driving circuit 100 is disclosed, which is applied to a display device, the display device comprising a timing control module Tcon and a source driving module Source, the driving circuit 100 being arranged between the timing control module Tcon and the source driving module Source, the driving circuit 100 comprising a first control module 110 and an analog module 120, a control end of the first control module 110 being connected with an output end of the source driving module Source, an input end of the first control module 110 being connected with an output end of the analog module 120, and an output end of the first control module 110 being connected with an input end of the timing control module Tcon; when the source driving module Source outputs a first voltage signal, the first control module 110 is in an off state, the output end of the analog module 120 is not connected with the input end of the timing control module Tcon, and the input end of the timing control module Tcon receives the first voltage signal; when the source driving module Source outputs a second voltage signal, the first control module 110 is in an on state, the output end of the analog module 120 is connected with the input end of the timing control module Tcon, the analog module 120 outputs a third voltage signal to the input end of the timing control module Tcon, and the third voltage signal is the same as the first voltage signal; it can be understood that the voltage value of the first voltage signal is greater than the voltage value of the second voltage signal, i.e. when the source driving module Source outputs the first voltage signal, the source driving module Source is in a normal working state, and when the source driving module Source outputs the second voltage signal, the source driving module Source is in an abnormal state.

[0036] Specifically, when the source driving module Source is in a normal working state, the source driving module Source outputs a first voltage signal, at this time, the first control module 110 is in an off state, the output end of the analog module 120 is not connected with the input end of the timing control module Tcon, and then the input end of the timing control module Tcon receives the first voltage signal, so that the timing control module Tcon realizes correct timing control, and the display device performs normal display work; when the source driving module Source is in an abnormal state, the source driving module Source outputs a second voltage signal, because the second voltage signal received by the control end of the first control module 110 is smaller than the third voltage signal received by the input end of the first control module 110, the first control module 110 is in an on state, the output end of the analog module 120 is connected with the input end of the timing control module Tcon, the analog module 120 outputs a third voltage signal to the input end of the timing control module Tcon, and the third voltage signal is the same as the first voltage signal, so that the timing control module Tcon also realizes correct timing control, but the area corresponding to the source driving module Source on the display device is black screen display or white screen display, so that the worker can quickly determine the position of the abnormal source driving module Source in the display device. Compared with the existing scheme that needs to disassemble the display module one by one to detect and investigate to determine the abnormal source driving module Source, the display device of the present application can give an analog signal to the timing control module Tcon through the driving circuit 100 when the abnormal source driving module Source appears, so that the timing control module Tcon can continue to work normally, so that the area corresponding to the normal source driving module Source on the display device can still continue to display the picture, and the area corresponding to the abnormal source driving module Source cannot display, so that the worker can quickly determine the position of the abnormal source driving module Source in the display panel 200, which reduces the cost of display device repair to a certain extent, and does not cause irreversible damage to the display device. It should be noted that the second voltage signal can be 0V, or other voltage values lower than the first voltage signal; wherein the analog module 120 can be an external power supply XVCC to output a third voltage signal which is the same as the first voltage signal output by the source driving module Source. It can be understood that the first voltage signal output by the source driving module Source is a normal Lock voltage signal, and the second voltage signal output by the source driving module Source is an abnormal Lock voltage signal.

[0037] Further, as Figure 1As shown, the driving circuit 100 further comprises a first diode D1, a second diode D2, a third diode D3 and a first ground terminal GND1, the first ground terminal GND1 is connected with the output terminal of the first control module 110, the input terminal of the first diode D1 is connected with the output terminal of the source driving module Source, the output terminal of the first diode D1 is connected with the control terminal of the first control module 110, the input terminal of the second diode D2 is connected with the output terminal of the source driving module Source, the output terminal of the second diode D2 is connected with the input terminal of the timing control module Tcon, the input terminal of the third diode D3 is arranged between the output terminal of the first control module 110 and the first ground terminal GND1, and the output terminal of the third diode D3 is arranged between the output terminal of the second diode D2 and the input terminal of the timing control module Tcon;

[0038] In working, when the source driving module Source outputs a first voltage signal, the first voltage signal is transmitted to the input terminal of the first diode D1 and the input terminal of the second diode D2, the voltage signal received by the control terminal of the first control module 110 is the same as the voltage signal received by the input terminal of the first control module 110, so that the first control module 110 is in an off state, the third voltage signal of the analog module 120 cannot be transmitted to the input terminal of the timing control module Tcon, and the second diode D2 and the third diode D3 both play a role of one-way conduction, so that the first voltage signal output by the source driving module Source cannot be transmitted to the output terminal of the first control module 110 through the third diode D3, at the same time, the first diode D1, the second diode D2 and the third diode D3 all play a role of voltage stabilization, so as to ensure the stability of voltage;

[0039] When the source driving module Source outputs a second voltage signal, the second voltage signal is transmitted to the input end of the first diode D1 and the input end of the second diode D2, the voltage signal received by the control end of the first control module 110 is smaller than the voltage signal received by the input end of the first control module 110, so that the first control module 110 is in a conducting state, and the third voltage signal of the analog module 120 is transmitted to the input end of the third diode D3 and then output to the input end of the timing control module Tcon through the output end of the third diode D3; wherein the first control module 110 is an N-type transistor, so that when the voltage value received by the control end of the first control module 110 is smaller than the voltage value received by the input end of the first control module 110, the first control module 110 is in a conducting state; by adding the first diode D1, the second diode D2 and the third diode D3, the voltage in the driving circuit 100 of the embodiment is stabilized, and the setting of the first diode D1, the second diode D2 and the third diode D3 makes the current flow in the driving circuit 100 be unidirectional flow, when the source driving module Source in the driving circuit 100 is abnormal, the third voltage signal provided by the analog module 120 to the input end of the timing control module Tcon will not pass through the second diode D2 under the unidirectional conductivity of the second diode D2, but be directly input to the input end of the timing control module Tcon.

[0040] As shown in Figure 2 As a second embodiment of the present application, which is a further improvement of the first embodiment of the present application, a driving circuit 100 is disclosed, the driving circuit 100 further comprises a storage capacitor C1 and a second control module 130, the input end of the storage capacitor C1 is arranged between the output end of the source driving module Source and the input end of the first diode D1, the output end of the storage capacitor C1 is arranged between the input end of the second control module 130 and the output end of the first diode D1, the control end of the second control module 130 is connected with the output end of the source driving module Source, and the output end of the second control module 130 is connected with the control end of the first control module 110;

[0041] The driving circuit 100 of the embodiment is in operation. When the source driving module Source outputs a first voltage signal, the first voltage signal is transmitted to the input end of the storage capacitor C1, the input end of the first diode D1 and the control end of the second control module 130. The source driving module Source continuously charges the storage capacitor C1. After the first voltage signal passes through the first diode D1, a voltage drop of 0.1V is generated, and then the first voltage signal is input to the input end of the second control module 130. At this time, the voltage signal at the input end of the second control module 130 is less than the voltage signal at the control end of the second control module 130, so that the second control module 130 is in an off state, thereby making the output end of the second control module 130 have no voltage output. The voltage signal at the control end of the first control module 110 is less than the voltage signal at the input end of the first control module 110, so that the first control module 110 is also in an off state.

[0042] When the source driving module Source outputs a second voltage signal, the second voltage signal is transmitted to the input end of the storage capacitor C1, the input end of the first diode D1 and the control end of the second control module 130. The storage capacitor C1 starts to discharge. The voltage of the storage capacitor C1 is transmitted to the input end of the second control module 130. The voltage signal at the input end of the second control module 130 is greater than the voltage signal at the control end of the second control module 130, so that the second control module 130 is in an on state. The voltage of the storage capacitor C1 is transmitted to the control end of the first control module 110 through the output end of the second control module 130. The voltage signal at the control end of the first control module 110 is greater than the voltage signal at the input end of the first control module 110, so that the first control module 110 is in an on state. The third voltage signal of the analog module 120 is transmitted to the input end of the timing control module Tcon through the output end of the first control module 110, so that the timing control module Tcon receives the third voltage signal of the analog first voltage signal, and the timing control module Tcon can normally perform timing control, so that the display device can continue to display, and the display area corresponding to the abnormal source driving module Source does not display, and the display area corresponding to the normal source driving module Source continues to display, so that the worker can more easily distinguish the abnormal source driving module Source and the normal source driving module Source. In the embodiment, the first control module 110 is a P-type triode, and the second control module 130 is an N-type triode.

[0043] The driving circuit 100 further comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6 and a second ground terminal GND2. The second ground terminal GND2 is arranged between the input terminal of the storage capacitor C1 and the output terminal of the source driving module Source. The input terminal of the first resistor R1 is connected to the output terminal of the source driving module Source. The output terminal of the first resistor R1 is connected to the input terminal of the first diode D1. The input terminal of the second resistor R2 is arranged between the output terminal of the first resistor R1 and the input terminal of the first diode D1. The output terminal of the second resistor R2 is arranged between the input terminal of the storage capacitor C1 and the second ground terminal GND2. The input terminal of the third resistor R3 is connected to the output terminal of the source driving module Source. The output terminal of the third resistor R3 is connected to the control terminal of the second control module 130. The input terminal of the fourth resistor R4 is connected to the output terminal of the second control module 130. The output terminal of the fourth resistor R4 is connected to the control terminal of the first control module 110. The input terminal of the fifth resistor R5 is connected to the output terminal of the first control module 110. The output terminal of the fifth resistor R5 is connected to the first ground terminal GND1. The input terminal of the third diode D3 is arranged between the output terminal of the first control module 110 and the input terminal of the fifth resistor R5. The input terminal of the sixth resistor R6 is connected to the output terminal of the second diode D2. The output terminal of the sixth resistor R6 is connected to the input terminal of the timing control module Tcon. The output terminal of the third diode D3 is arranged between the input terminal of the sixth resistor R6 and the output terminal of the second diode D2. In this embodiment, the resistance value of the first resistor R1 is 2.2k. The resistance value of the second resistor R2 is 33k. The first resistor R1 and the second resistor R2 are used for voltage division. The resistance value of the third resistor R3 is 33k. The resistance value of the fourth resistor R4 is 4.7k. The resistance value of the fifth resistor R5 is 1m. The resistance value of the sixth resistor R6 is 1k.

[0044] The driving circuit 100 of this embodiment is directly arranged between the source driving module Source and the timing control module Tcon. The driving circuit 100 can be directly arranged on the printed circuit board (PBCA board) of the display device, so that no additional circuit position needs to be arranged on the display device, and the internal space of the display device is not occupied.

[0045] As shown in Figure 3 The third embodiment of the present application discloses a driving method of a display device. The driving method is applied to a display device. The driving method comprises the following steps:

[0046] Detect the voltage value of the Lock signal;

[0047] Specifically, the Lock signal is a communication signal between the source driver module and the timing control module. The timing control module will only start working after receiving the Lock signal sent by the source driver module.

[0048] Based on the voltage value of the Lock signal, the analog circuit located between the output terminal of the source drive module and the input terminal of the timing control module is activated.

[0049] Specifically, when the Lock signal is within the normal range, such as 1.8V, the analog circuit does not start; however, when the Lock signal is within an abnormal voltage range, such as 0V or less than the normal voltage value of 1.8V, the analog circuit starts to operate.

[0050] The analog circuit outputs an analog voltage signal to the timing control module.

[0051] Specifically, the analog circuit outputs an analog voltage signal, which is the same as the Lock signal within the normal range, so that the timing control module can continue to work normally.

[0052] In this embodiment, by detecting the Lock signal emitted by the source driver module in the display device, it is determined whether to start the analog circuit. This ensures that when the source driver module malfunctions, the timing control module can still continue to operate based on the analog voltage signal output by the analog circuit, enabling the display device to display. The area on the display device corresponding to the malfunctioning source driver module will be either undisplayed or display a white screen, while the area on the display device corresponding to the normal source driver module will display normally. This allows staff to easily identify the location and number of malfunctioning source driver modules in the display device, saving maintenance time and costs to some extent.

[0053] Furthermore, the step of detecting the voltage value of the Lock signal includes, prior to:

[0054] An analog circuit for simulating a lock signal is pre-set between the output of the source driver module and the input of the timing control module.

[0055] Specifically, the analog circuit is the driving circuit described in the above embodiment.

[0056] Furthermore, such as Figure 4 As shown, the step of controlling the start-up of the analog circuit located between the output terminal of the source drive module and the input terminal of the timing control module based on the voltage value of the Lock signal includes:

[0057] The voltage value of the Lock signal is input to the analog circuit;

[0058] Based on the input voltage value of the Lock signal, when the voltage value is less than the normal range, the analog circuit starts to work and outputs an analog voltage signal of a normal value of the analog Lock signal to the timing control module; when the voltage value is in the normal range, the analog circuit stops working.

[0059] Specifically, when the abnormal source driving module appears, the Lock signal is in an abnormal voltage range, and the driving circuit gives an analog signal to the timing control module to make it continue to work normally, so that the area corresponding to the normal source driving module on the display device can still continue to display the picture, while the area corresponding to the abnormal source driving module cannot display, thereby enabling the staff to quickly determine the position of the abnormal source driving module in the display device, to a certain extent, reducing the cost of display device repair, and without causing irreversible damage to the display device.

[0060] As Figure 5 shown, it is a fourth embodiment of the present application, which discloses a display device 300, the display device 300 comprises a display panel 200 and a driving circuit 100 as described in the above embodiments, the display device 300 of the present embodiment can give an analog signal to the timing control module Tcon to make it continue to work normally through the driving circuit 100 when the abnormal source driving module Source appears, so that the area corresponding to the normal source driving module Source on the display device 300 can still continue to display the picture, while the area corresponding to the abnormal source driving module Source cannot display, thereby enabling the staff to quickly determine the position of the abnormal source driving module in the display device 300, to a certain extent, reducing the cost of display device 300 repair, and without causing irreversible damage to the display device 300.

[0061] It should be noted that the limitations of each step involved in the present scheme do not constitute a limitation on the order of the steps without affecting the implementation of the specific scheme. The steps written in the front can be executed first, or executed later, or even executed simultaneously, as long as the scheme can be implemented, it should be considered to belong to the protection scope of the present application.

[0062] It should be noted that the inventive concept of the present application can form a very large number of embodiments, but the length of the application file is limited and cannot be listed one by one, therefore, on the premise of not conflicting, the above described each embodiment or each technical feature can be combined to form a new embodiment, and the combination of each embodiment or technical feature will enhance the original technical effect.

[0063] The above further describes the present application in detail with reference to specific optional embodiments. It is not to be understood that the present application is limited to these embodiments. Any person skilled in the art to which the present application pertains can make several simple deductions or replacements without departing from the concept of the present application, and all of them shall be deemed to fall within the protection scope of the present application.

Claims

1. A driving circuit applied to a display device, the display device comprising a timing control module and a source driving module, the driving circuit being disposed between the timing control module and the source driving module, characterized in that, The driving circuit includes: First control module; The simulation module has its control terminal connected to the output terminal of the source drive module, its input terminal connected to the output terminal of the simulation module, and its output terminal connected to the input terminal of the timing control module. When the source drive module outputs a first voltage signal, the first control module is in a disconnected state, the output terminal of the analog module is not connected to the input terminal of the timing control module, and the input terminal of the timing control module receives the first voltage signal; when the source drive module outputs a second voltage signal, the first control module is in a conducting state, the output terminal of the analog module is connected to the input terminal of the timing control module, and the analog module outputs a third voltage signal to the input terminal of the timing control module, the third voltage signal being the same as the first voltage signal.

2. The driving circuit according to claim 1, characterized in that, It also includes a first diode, a second diode, a third diode, and a first ground terminal. The first ground terminal is connected to the output terminal of the first control module. The input terminal of the first diode is connected to the output terminal of the source drive module. The output terminal of the first diode is connected to the control terminal of the first control module. The input terminal of the second diode is connected to the output terminal of the source drive module. The output terminal of the second diode is connected to the input terminal of the timing control module. The input terminal of the third diode is located between the output terminal of the first control module and the first ground terminal. The output terminal of the third diode is located between the output terminal of the second diode and the input terminal of the timing control module.

3. The driving circuit according to claim 2, characterized in that, It also includes a storage capacitor and a second control module. The input terminal of the storage capacitor is disposed between the output terminal of the source drive module and the input terminal of the first diode. The output terminal of the storage capacitor is disposed between the input terminal of the second control module and the output terminal of the first diode. The control terminal of the second control module is connected to the output terminal of the source drive module, and the output terminal of the second control module is connected to the control terminal of the first control module. When the source drive module outputs a first voltage signal, the second control module is in a disconnected state, and the source drive module continuously charges the storage capacitor; when the source drive module outputs a second voltage signal, the second control module is in a conducting state, and the output terminal of the storage capacitor is connected to the control terminal of the first control module to make the first control module in a conducting state, and the output terminal of the analog module is connected to the input terminal of the timing control module.

4. The driving circuit according to claim 3, characterized in that, It also includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, and a second ground terminal. The second ground terminal is disposed between the input terminal of the storage capacitor and the output terminal of the source drive module. The input terminal of the first resistor is connected to the output terminal of the source drive module, and the output terminal of the first resistor is connected to the input terminal of the first diode. The input terminal of the second resistor is disposed between the output terminal of the first resistor and the input terminal of the first diode. The output terminal of the second resistor is disposed between the input terminal of the storage capacitor and the second ground terminal. The input terminal of the third resistor is connected to the output terminal of the source drive module, and the output terminal of the third resistor is connected to the second ground terminal. The control terminal of the control module is connected, the input terminal of the fourth resistor is connected to the output terminal of the second control module, the output terminal of the fourth resistor is connected to the control terminal of the first control module, the input terminal of the fifth resistor is connected to the output terminal of the first control module, the output terminal of the fifth resistor is connected to the first ground terminal, the input terminal of the third diode is located between the output terminal of the first control module and the input terminal of the fifth resistor, the input terminal of the sixth resistor is connected to the output terminal of the second diode, the output terminal of the sixth resistor is connected to the input terminal of the timing control module, and the output terminal of the third diode is located between the input terminal of the sixth resistor and the output terminal of the second diode.

5. The driving circuit according to claim 1, characterized in that, The first control module is an N-type transistor.

6. The driving circuit according to claim 3, characterized in that, The first control module is a P-type transistor, and the second control module is an N-type transistor.

7. A driving method for a display panel, applied to a display panel, the driving method being used to drive the driving circuit as described in any one of claims 1 to 6, characterized in that, Including the following steps: Detect the voltage value of the Lock signal; Based on the voltage value of the Lock signal, the analog circuit located between the output terminal of the source drive module and the input terminal of the timing control module is activated. The analog circuit outputs an analog voltage signal to the timing control module. Specifically, the analog circuit is activated when the voltage value of the Lock signal is less than the normal range.

8. The driving method according to claim 7, characterized in that, The step of detecting the voltage value of the Lock signal includes the following prior steps: An analog circuit for simulating a lock signal is pre-set between the output of the source driver module and the input of the timing control module.

9. The driving method according to claim 7, characterized in that, The step of controlling the start-up of the analog circuit located between the output terminal of the source drive module and the input terminal of the timing control module based on the voltage value of the Lock signal includes: The voltage value of the Lock signal is input to the analog circuit; Based on the voltage value of the input Lock signal, when the voltage value is less than the normal range, the analog circuit starts and outputs an analog voltage signal simulating the normal value of the Lock signal to the timing control module; when the voltage value is within the normal range, the analog circuit stops working.

10. A display device, characterized in that, It includes a display panel and a driving circuit as described in claims 1 to 6.

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