Display panel driving method, device, display panel and readable storage medium
By adjusting the field shift pulse frequency in the software control logic of the display panel and adjusting the draw load according to the operating interval, the voltage instability problem of the display panel during interval switching is solved, and the balance of stability and cost-effectiveness is achieved.
Patent Information
- Application Number
- CN202211523264.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-11-30
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2042-11-30
AI Technical Summary
The prior art improves the voltage up and down phenomenon of the display panel when switching the display interval by reducing the inductance value or increasing the capacitance value in the power conversion circuit of the switching power supply, but this may lead to system instability or cost increase.
By changing the software control logic, it is determined whether the source driving circuit is in the draw load state based on the operating interval of the display panel. If it is not in the draw load state, the output frequency of the field shift pulse is increased to increase the draw load of the gate driving circuit, maintain the stability of the draw load, and avoid sudden voltage changes.
Without changing the hardware circuit, the voltage upsurge and undersurge are effectively avoided, the system stability is maintained and the cost increases are avoided, and flexible software control logic is achieved.
Smart Images

Figure CN115953967B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of display panels, and in particular to a display panel driving method, a display panel device, a display panel, and a readable storage medium. Background Art
[0002] The power supply of the display panel is generally a DC-DC (direct current-direct current) switching power supply, which provides power to the display panel according to a control timing of the display panel.
[0003] In the display screen of the display panel, each frame of the image includes a display interval and a blanking interval. When the display screen is in the display interval, the load of the display panel is very large, and the load state of the switching power supply is heavy. However, when the display screen enters the blanking interval, the load state of the switching power supply switches from heavy load to light load. At this time, the load drops sharply, causing the voltage to exceed the set value, forming an overshoot phenomenon. Conversely, when the display screen returns to the display interval from the blanking interval, the load state of the switching power supply switches from light load to heavy load. At this time, the load rises sharply, causing the voltage to fall below the set value, forming an undershoot phenomenon.
[0004] Currently, existing technologies mainly improve the above-mentioned overshoot and undershoot phenomena by reducing the inductance energy change in the power conversion circuit of the switching power supply or increasing the capacitance value in the circuit. However, reducing the inductance value may cause the bandwidth to be too large, resulting in system instability, while increasing the capacitance value will lead to increased costs. Summary of the Invention
[0005] The main purpose of this application is to provide a display panel driving method, device, display panel and readable storage medium, aiming to maintain the stability of the in-plane load by changing the software control logic, avoid sudden changes in the load when the display screen switches between different display intervals, keep the load state of the switching power supply stable, and thereby improve the voltage overshoot and undershoot caused by sudden changes in the load, avoiding the technical defects of existing hardware improvement solutions.
[0006] To achieve the above-mentioned object, the present application provides a method for driving a display panel. The method for driving a display panel is applied to a display panel, wherein the display panel includes a source driving circuit and a gate driving circuit. The method for driving a display panel includes the following steps:
[0007] Obtaining an operating interval of the display panel according to a preset timing control signal;
[0008] determining whether the source driver circuit is in a load-removed state according to the operating range;
[0009] If the source driving circuit is not in a drawback state, the output frequency of the field shift pulse is increased to increase the drawback capacity of the gate driving circuit.
[0010] Optionally, after the step of determining whether the source driving circuit is in a load-reduced state according to the operating range, the display panel driving method further includes:
[0011] If the source driver circuit is in an unloaded state, a field shift pulse of normal frequency is output to enable the source driver circuit and the gate driver circuit to be normally unloaded.
[0012] Optionally, the step of determining whether the source driver circuit is in a load-removed state according to the operating range includes:
[0013] If the operation interval is a display interval, determining that the source driving circuit is in a load-removed state;
[0014] If the operating interval is a blanking interval, it is determined that the source driving circuit is not in a load-removed state.
[0015] Optionally, when the operating interval is a display interval, the source driving circuit and the gate driving circuit are in an unloaded state, and the load state of the switching power supply is a heavy load state.
[0016] Optionally, after the step of determining whether the source driving circuit is in a load-reduced state according to the operating range, the display panel driving method further includes:
[0017] When the load state of the switching power supply is a heavy load state, a field shift pulse of normal frequency is output to enable the source driving circuit and the gate driving circuit to normally unload.
[0018] Optionally, when the operating interval is a blanking interval, the source driving circuit is not in a load-removed state, the gate driving circuit is in a load-removed state, and the load state of the switching power supply is a light-load state.
[0019] Optionally, after the step of determining whether the source driving circuit is in a load-reduced state according to the operating range, the display panel driving method further includes:
[0020] When the load state of the switching power supply is a light load state, the output frequency of the field shift pulse is increased to increase the load withdrawal capacity of the gate drive circuit, so that the load state of the switching power supply is continuously in a heavy load state.
[0021] In addition, to achieve the above-mentioned objectives, the present application further provides a display panel driving device, wherein the display panel driving device is applied to a display panel, wherein the display panel includes a source driving circuit and a gate driving circuit, and the display panel driving device includes:
[0022] an acquisition module, configured to acquire an operating range of the display panel according to a preset timing control signal;
[0023] a judging module, configured to judge whether the source driving circuit is in a load-removed state according to the operating range;
[0024] An execution module is configured to increase the output frequency of the field shift pulse to increase the draw capacity of the gate drive circuit if the source drive circuit is not in a draw state.
[0025] In addition, to achieve the above-mentioned purpose, the present application also provides a display panel, which includes: a memory, a processor, and a computer program stored in the memory and runnable on the processor, and when the computer program is executed by the processor, the steps of the display panel driving method described above are implemented.
[0026] In addition, to achieve the above-mentioned purpose, the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the display panel driving method as described above are implemented.
[0027] The present application proposes a display panel driving method, device, display panel, and readable storage medium. In the display panel driving method, a logic board first obtains the operating range of the display panel based on a preset timing control signal; then, based on the operating range, determines whether the source driver circuit is in a drawdown state; if the source driver circuit is not in a drawdown state, the output frequency of the field shift pulse is increased to increase the drawdown capacity of the gate driver circuit. When the display panel operates in the blanking range, the present application changes the control timing of the gate driver circuit to maintain the drawdown state, so that the drawdown capacity of the display panel when operating in the blanking range is equivalent to the drawdown capacity when operating in the display range, thereby avoiding voltage overshoot and undershoot caused by sudden changes in drawdown capacity when the display panel switches between operating ranges. The display panel driving method proposed in this application does not require any improvement to the hardware circuit, and can be implemented by changing the software control logic based on the existing hardware. It is flexible and convenient, highly feasible, and has significant effects. It avoids the system instability problem that may be caused by changing the inductance value, and also avoids the cost increase problem caused by increasing the capacitance value. It overcomes the technical defects of the technical solutions in the prior art for improving the overshoot and undershoot phenomena of the display screen when switching the display interval. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only part of the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0029] Figure 1 A circuit diagram of a switching power supply involved in a display panel driving method provided in one embodiment of the present application;
[0030] Figure 2 A schematic flow chart of a method for driving a display panel provided in one embodiment of the present application;
[0031] Figure 3 A schematic structural diagram of a driving device for a display panel provided in one embodiment of the present application;
[0032] Figure 4 A schematic diagram of the internal structure of a display panel provided in one embodiment of the present application. DETAILED DESCRIPTION
[0033] In the following description, specific details such as specific system structures and technologies are provided for illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the embodiments of the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the embodiments of the present application.
[0034] It should be noted that although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be performed in a different order than that shown in the flowcharts. The terms "first," "second," and the like in the specification, claims, and drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0035] It should also be understood that references to "one embodiment" or "some embodiments" described in the description of the embodiments of the present application mean that one or more embodiments of the embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Thus, the phrases "in one embodiment," "in some embodiments," "in some other embodiments," "in some other embodiments," etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and their variations all mean "including but not limited to," unless otherwise specifically emphasized.
[0036] The power supply of the display panel is generally a DC-DC switching power supply, which provides power to the display panel according to the control timing of the display panel. The circuit diagram can be referred to Figure 1 , Figure 1 Take the buck circuit (step-down conversion circuit) as an example: the internal circuit of the switching power supply consists of several main parts: power conversion, sampling feedback, and logic drive.
[0037] In the display panel's image, each frame includes a display interval and a blanking interval. When the display is in the display interval, both the source driver circuit and the gate driver circuit are in a load-reducing state. At this time, the display panel's load is very high, and the switching power supply is heavily loaded. However, when the display enters the blanking interval, the source driver circuit stops drawing load, causing the switching power supply's load to switch from heavily loaded to lightly loaded. Due to the sudden drop in load at this time, the voltage exceeds the set value, resulting in an overshoot phenomenon. After the overshoot phenomenon occurs, the switching power supply detects the voltage change through the voltage sampling module and adjusts the voltage through the feedback compensation module to gradually reduce the voltage to the set value. When the display returns from the blanking interval to the display interval, the switching power supply's load switches from lightly loaded to heavily loaded. At this time, the load suddenly increases, causing the voltage to fall below the set value, resulting in an undershoot phenomenon. The switching voltage needs to undergo feedback compensation for a certain period of time before it can be adjusted back to the set value.
[0038] Currently, existing technologies mainly improve the above-mentioned overshoot and undershoot phenomena by reducing the inductance energy change in the power conversion circuit of the switching power supply or increasing the capacitance value in the circuit. However, reducing the inductance value may cause the bandwidth to be too large, resulting in system instability, while increasing the capacitance value will lead to increased costs.
[0039] Based on this, embodiments of the present application provide a display panel driving method, device, display panel, and readable storage medium. In the display panel driving method, a logic board first obtains the operating range of the display panel based on a preset timing control signal; then, based on the operating range, determines whether the source driver circuit is in a drawdown state; if the source driver circuit is not in a drawdown state, the output frequency of the field shift pulse is increased to increase the drawdown amount of the gate driver circuit. When the display panel operates in the blanking range, the present application changes the control timing of the gate driver circuit to maintain the drawdown state, so that the drawdown amount of the display panel when operating in the blanking range is equivalent to the drawdown amount when operating in the display range, thereby avoiding voltage overshoot and undershoot caused by sudden changes in drawdown amount when the display panel switches between operating ranges. The display panel driving method proposed in this application does not require any improvement to the hardware circuit, and can be implemented by changing the software control logic based on the existing hardware. It is flexible and convenient, highly feasible, and has significant effects. It avoids the system instability problem that may be caused by changing the inductance value, and also avoids the cost increase problem caused by increasing the capacitance value. It overcomes the technical defects of the technical solutions in the prior art for improving the overshoot and undershoot phenomena of the display screen when switching the display interval.
[0040] The display panel driving method, device, display panel and readable storage medium provided in the embodiments of the present application are specifically described through the following embodiments. First, the display panel driving method in the embodiments of the present application is described.
[0041] The embodiment of the present application provides a method for driving a display panel, referring to Figure 2 , Figure 2 A schematic flow chart of a method for driving a display panel according to an embodiment of the present application is provided. The method for driving a display panel can be applied to a display panel including a source driving circuit and a gate driving circuit. Figure 2 As shown, the display panel driving method provided in this embodiment includes steps S10 to S30.
[0042] Step S10, obtaining an operating range of the display panel according to a preset timing control signal;
[0043] It should be noted that in this embodiment, the executing entity is the display panel, which includes a TCON (timing controller) logic board. The TCON can perform timing control on the source drive circuit and gate drive circuit of the display panel according to the preset timing control signal, thereby maintaining the normal operation of the display panel. The timing logic of the display panel when displaying each frame is certain, and its operating range includes a display range and a blanking range. Therefore, the current operating range of the display panel can be determined by reading the timing control signal.
[0044] Step S20, determining whether the source driver circuit is in a load-removed state according to the operating range;
[0045] It should be noted that whether the source driver circuit is in the unloaded state depends on the operating range of the display panel, specifically, it is determined by the timing control signal of the TCON logic board. After the switching power supply generates the VAA voltage, it will provide the source driver circuit with a Gamma grayscale voltage for normal display of the image based on the VAA voltage (the Gamma voltage is generated by the VAA voltage divider), and based on the VAA voltage, it will provide the gate driver circuit with a VGH voltage that allows each TFT (Thin Film Transistor) in the display panel to be turned on.
[0046] Step S30 : If the source driving circuit is not in the drawback state, increasing the output frequency of the field shift pulse to increase the drawback of the gate driving circuit.
[0047] It should be noted that in the prior art, when the operating interval of the display panel is the blanking interval, both the gate side (gate drive circuit) and the source side (source drive circuit) are not unloaded. At this time, the display panel can be regarded as a smaller load relative to the switching power supply, that is, the switching power supply is in a light-load state; in this embodiment, in order to avoid load jumps when the display panel switches the operating interval, the switching signal on the gate side is continuously turned on even in the blanking interval, so that the TCON control outputs a higher frequency CKV (field shift pulse) to keep the load state of the switching voltage at a heavy load. When re-entering the display interval, the load state will not suddenly switch from a light load to a heavy load, thereby avoiding the overshoot or undershoot phenomenon of the VAA voltage.
[0048] Furthermore, in some feasible embodiments, after step 20, the display panel driving method provided in this embodiment further includes:
[0049] Step S31 : If the source driving circuit is in a load-unloaded state, outputting a field shift pulse of a normal frequency to enable the source driving circuit and the gate driving circuit to be normally unloaded.
[0050] It should be noted that in this embodiment, when the operating interval of the display panel is the display interval, both the gate side and the source side are in the unload state. At this time, the display panel can be regarded as a larger load relative to the switching power supply, that is, the switching power supply is in a heavy load state.
[0051] Furthermore, in some feasible embodiments, the above step S20 includes:
[0052] Step S21, if the operating interval is a display interval, determining that the source driver circuit is in a load-removed state;
[0053] Step S22: If the operating interval is a blanking interval, it is determined that the source driving circuit is not in a load-removed state.
[0054] Furthermore, in some feasible embodiments, the display panel is powered by a switching power supply. When the operating interval is a display interval, the source drive circuit and the gate drive circuit are in an unloaded state, and the load state of the switching power supply is a heavy load state.
[0055] Furthermore, in some feasible embodiments, the display panel is powered by a switching power supply. When the operating interval is a blanking interval, the source drive circuit is not in a load-removed state, the gate drive circuit is in a load-removed state, and the load state of the switching power supply is a light load state.
[0056] It should be noted that, in this embodiment, when the operating interval of the display panel is the display interval, both the gate side (gate drive circuit) and the source side (source drive circuit) are in an unloaded state. At this time, the display panel can be regarded as a larger load relative to the switching power supply, that is, the switching power supply is in a heavy-load state; when the operating interval of the display panel is the blanking interval, both the gate side and the source side are not unloaded. At this time, the display panel can be regarded as a smaller load relative to the switching power supply, that is, the switching power supply is in a light-load state.
[0057] Furthermore, in some feasible embodiments, after step 20, the display panel driving method provided in this embodiment further includes:
[0058] Step S211 : when the load state of the switching power supply is a heavy load state, outputting a field shift pulse of a normal frequency to enable the source driving circuit and the gate driving circuit to normally unload.
[0059] In this embodiment, when the display panel is in the display interval and the switching power supply is in a heavy-load state, the TCON logic board outputs a CKV field shift pulse of normal frequency, so that the source side and the gate side normally control the display panel to display the picture.
[0060] Furthermore, in some feasible embodiments, after step 20, the display panel driving method provided in this embodiment further includes:
[0061] Step S221 : when the load state of the switching power supply is a light load state, increasing the output frequency of the field shift pulse to increase the load withdrawal capacity of the gate driving circuit, so that the load state of the switching power supply is continuously in a heavy load state.
[0062] In this embodiment, when the display panel is in the blanking interval and the switching power supply is in a light-load state, the TCON logic board switches the gate side from off to on, maintaining VGH continuous load. Since the source side is no longer being loaded, it can output CKV field-shift pulses at several times the normal frequency, increasing the gate-side VGH turn-on frequency. This increases the VGH draw by a factor of N (the specific increase factor can be flexibly set based on the display panel). This ensures that the VAA draw is comparable to the level during the display interval, maintaining the switching power supply's load at a heavy load. Consequently, upon the next switch to the display interval, simply returning the VGH turn-on frequency to normal eliminates the sudden change from light to heavy load. This effectively reduces voltage overshoot and undershoot, preventing severe VAA undershoot from affecting the gamma grayscale voltage level used for display, thereby affecting grayscale voltage output and causing display anomalies.
[0063] This embodiment provides a method for driving a display panel. When the display panel operates in a blanking interval, the control timing of the gate drive circuit is changed to maintain the gate drive circuit in a continuous unloading state, so that the unloading amount of the display panel when operating in the blanking interval is equivalent to the unloading amount when operating in the display interval, thereby avoiding voltage overshoot and undershoot caused by a sudden change in the unloading amount when the display panel switches between operating intervals. The display panel driving method proposed in this application does not require any improvement to the hardware circuit. It can be implemented by changing the software control logic based on the existing hardware. It is flexible, convenient, highly feasible, and effective. It avoids the system instability problem that may be caused by changing the inductance value and the cost increase problem caused by increasing the capacitance value. It overcomes the technical defects of the technical solutions in the prior art for improving the overshoot and undershoot phenomenon of the display screen when switching the display interval.
[0064] In addition to the above-mentioned solution, the embodiment of the present application also proposes a technical solution, which adds a grounding circuit to the PCBA of the display panel, which is composed of a MOS tube and a resistor in series. The source of the MOS tube is connected to VAA, and the gate is connected to TCON. When the display panel operates in the blanking interval, since both the source side and the gate side have stopped drawing load, the gate of the MOS in the grounding circuit can be controlled by TCON to close, so that VAA is consumed by the resistor to the ground, thereby maintaining the switching power supply to output power in a heavy load state. When the display panel enters the display interval, TCON controls the gate of the MOS tube to disconnect, so that VAA can normally supply power to the source side and the gate side. This solution also keeps the load state in a heavy load when the display panel enters the blanking interval. It belongs to the same inventive concept as the above-mentioned embodiment of the present application, but it requires the addition of hardware circuits, and the cost is slightly higher than the above-mentioned solution.
[0065] In addition, the embodiment of the present application also proposes a driving device for a display panel, referring to Figure 3 , Figure 3 A schematic diagram of a driving device for a display panel according to an embodiment of the present application is shown in FIG. Figure 3 As shown, in this embodiment, the driving device of the display panel is applied to a display panel, the display panel includes a source driving circuit and a gate driving circuit, and the driving device of the display panel includes: an acquisition module 100, a judgment module 200 and an execution module 300.
[0066] An acquisition module 100, configured to acquire an operating range of the display panel according to a preset timing control signal;
[0067] A judging module 200 is configured to judge whether the source driver circuit is in a load-removed state according to the operating range;
[0068] The execution module 300 is configured to increase the output frequency of the field shift pulse to increase the draw capacity of the gate driving circuit if the source driving circuit is not in the draw state.
[0069] The driving device of the display panel provided in this embodiment and the driving method of the display panel provided in the above embodiment belong to the same inventive concept. The technical details not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the driving method of the display panel.
[0070] In addition, an embodiment of the present application also provides a display panel. The above-mentioned display panel driving method applied to the display panel can be executed by a display panel driving device. The display panel driving device can be implemented by software and / or hardware and integrated into the display panel.
[0071] Reference Figure 4 , Figure 4 This is a schematic diagram of the internal structure of a display panel provided in an embodiment of the present application. Figure 4As shown, the display panel may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the user interface 1003 may optionally include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (WIreless-FIdelity, WI-FI) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk storage. The memory 1005 may optionally be a storage device independent of the aforementioned processor 1001.
[0072] Those skilled in the art will understand that Figure 4 The structure shown in the figure does not constitute a limitation on the display panel, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.
[0073] like Figure 4 As shown, the memory 1005 as a storage medium may include an operating system, a data storage module, a network communication module, a user interface module and a computer program.
[0074] exist Figure 4 In the display panel shown, the network interface 1004 is mainly used for data communication with other devices; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in this embodiment can be set in the display panel, and the display panel calls the computer program stored in the memory 1005 through the processor 1001 and performs the following operations:
[0075] Obtaining an operating interval of the display panel according to a preset timing control signal;
[0076] determining whether the source driver circuit is in a load-removed state according to the operating range;
[0077] If the source driving circuit is not in a drawback state, the output frequency of the field shift pulse is increased to increase the drawback capacity of the gate driving circuit.
[0078] Furthermore, the processor 1001 may call a computer program stored in the memory 1005 and perform the following operations:
[0079] If the source driver circuit is in an unloaded state, a field shift pulse of normal frequency is output to enable the source driver circuit and the gate driver circuit to be normally unloaded.
[0080] Furthermore, the processor 1001 may call a computer program stored in the memory 1005 and perform the following operations:
[0081] If the operation interval is a display interval, determining that the source driving circuit is in a load-removed state;
[0082] If the operating interval is a blanking interval, it is determined that the source driving circuit is not in a load-removed state.
[0083] Furthermore, the display panel is powered by a switching power supply. When the operating interval is a display interval, the source driving circuit and the gate driving circuit are in an unloaded state, and the load state of the switching power supply is a heavy load state.
[0084] Furthermore, the processor 1001 may call a computer program stored in the memory 1005 and perform the following operations:
[0085] When the load state of the switching power supply is a heavy load state, a field shift pulse of normal frequency is output to enable the source driving circuit and the gate driving circuit to normally unload.
[0086] Furthermore, the display panel is powered by a switching power supply. When the operating interval is a blanking interval, the source driving circuit is not in a load-removed state, the gate driving circuit is in a load-removed state, and the load state of the switching power supply is a light load state.
[0087] Furthermore, the processor 1001 may call a computer program stored in the memory 1005 and perform the following operations:
[0088] When the load state of the switching power supply is a light load state, the output frequency of the field shift pulse is increased to increase the load withdrawal capacity of the gate drive circuit, so that the load state of the switching power supply is continuously in a heavy load state.
[0089] The display panel proposed in this embodiment and the driving method of the display panel applied to the display panel proposed in the above embodiment belong to the same inventive concept. The technical details not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as the driving method of the display panel.
[0090] In addition, an embodiment of the present application also proposes a computer-readable storage medium, which is applied to a computer. The computer-readable storage medium can be a non-volatile computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, the driving method of the display panel of any embodiment described above is implemented.
[0091] Those skilled in the art will appreciate that all or some of the steps and systems in the method disclosed above can be implemented as software, firmware, hardware, and appropriate combinations thereof. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, and the computer-readable medium can include computer storage media (or non-transitory media) and communication media (or temporary media). As known to those skilled in the art, the term computer storage media is included in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data) and is volatile and non-volatile, removable, and non-removable. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory, or other memory technology, CD-ROM, digital versatile disks (DVD), or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage, or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, as is well known to those skilled in the art, communication media typically embodies computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.
[0092] The above is a specific description of the preferred implementation of the embodiments of the present application, but the embodiments of the present application are not limited to the above-mentioned implementation methods. Technical personnel familiar with the art can also make various equivalent modifications or substitutions without violating the spirit of the embodiments of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the embodiments of the present application.
Claims
1. A method for driving a display panel, characterized in that: The display panel driving method is applied to a display panel, wherein the display panel includes a source driving circuit and a gate driving circuit. The display panel driving method includes the following steps: Obtaining an operating interval of the display panel according to a preset timing control signal; determining whether the source driver circuit is in a load-removed state according to the operating range; If the source driver circuit is not in a pumping state, the output frequency of the field shift pulse is increased to increase the pumping capacity of the gate driver circuit, so that the pumping capacity of the display panel when running in the blanking interval is equivalent to the pumping capacity when running in the display interval.
2. The method for driving a display panel according to claim 1, wherein: After the step of determining whether the source driving circuit is in a load-reduced state according to the operating range, the display panel driving method further includes: If the source driver circuit is in an unloaded state, a field shift pulse of normal frequency is output to enable the source driver circuit and the gate driver circuit to be normally unloaded.
3. The method for driving a display panel according to claim 1, wherein: The step of determining whether the source driver circuit is in a load-removed state according to the operating range includes: If the operation interval is a display interval, determining that the source driving circuit is in a load-removed state; If the operating interval is a blanking interval, it is determined that the source driving circuit is not in a load-removed state.
4. The method for driving a display panel according to claim 3, wherein: The display panel is powered by a switching power supply. When the operating interval is a display interval, the source driving circuit and the gate driving circuit are in a reduced load state, and the load state of the switching power supply is a heavy load state.
5. The method for driving a display panel according to claim 4, wherein: After the step of determining whether the source driving circuit is in a load-reduced state according to the operating range, the display panel driving method further includes: When the load state of the switching power supply is a heavy load state, a field shift pulse of normal frequency is output to enable the source driving circuit and the gate driving circuit to normally unload.
6. The method for driving a display panel according to claim 3, wherein: The display panel is powered by a switching power supply. When the operating interval is a blanking interval, the source driving circuit is not in a load-removed state, the gate driving circuit is in a load-removed state, and the load state of the switching power supply is a light load state.
7. The method for driving a display panel according to claim 6, wherein: After the step of determining whether the source driving circuit is in a load-reduced state according to the operating range, the display panel driving method further includes: When the load state of the switching power supply is a light load state, the output frequency of the field shift pulse is increased to increase the load withdrawal capacity of the gate drive circuit, so that the load state of the switching power supply is continuously in a heavy load state.
8. A driving device for a display panel, characterized in that: The driving device of the display panel is applied to the display panel, the display panel includes a source driving circuit and a gate driving circuit, and the driving device of the display panel includes: an acquisition module, configured to acquire an operating range of the display panel according to a preset timing control signal; a judging module, configured to judge whether the source driving circuit is in a load-removed state according to the operating range; An execution module is configured to increase the output frequency of the field shift pulse to increase the pumping capacity of the gate drive circuit if the source drive circuit is not in a pumping state, so that the pumping capacity of the display panel when operating in the blanking interval is equivalent to the pumping capacity when operating in the display interval.
9. A display panel, characterized in that: The display panel includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the display panel driving method according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for driving a display panel according to any one of claims 1 to 7 are implemented.
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