Driving method, driving circuit and display device

Abstract

The present application relates to a driving method, a driving circuit, and a display device, wherein the method includes: detecting whether a picture to be displayed is a continuously repeated picture; if the picture to be displayed is a continuously repeated picture, sending a differential signal to a driver via a timing controller, wherein the differential signal includes a locking signal and a voltage signal corresponding to the continuously repeated picture; when the driver detects that the differential signal carries the locking signal, transmitting the differential signal to a voltage locking circuit according to a preset signal transmission strategy; and continuously transmitting the voltage signal corresponding to the continuously repeated picture to a display panel via the voltage locking circuit to drive the display panel to continuously display the continuously repeated picture. This method can reduce power consumption while ensuring that the display effect is not affected.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a driving method, a driving circuit, and a display device. Background Art

[0002] With consumers' increasing preference for large-size, high-refresh-rate displays, displays are trending towards larger sizes and higher refresh rates. However, while high refresh rates and high resolutions enhance display quality, they also increase the power consumption of display devices. This increased power consumption not only imposes an economic burden but also negatively impacts the environment, device performance, and user experience. Furthermore, due to the energy crisis and the greenhouse effect, countries around the world are gradually tightening energy efficiency standards, particularly the EU's energy efficiency regulations for electronic products, which have significantly restricted the development of large-size, high-resolution, and high-refresh-rate displays.

[0003] Therefore, how to reduce power consumption without affecting the display effect has become an urgent problem that needs to be solved in the display industry.

[0004] To address the above-mentioned problems, no effective solutions have been proposed so far. Summary of the Invention

[0005] The present application provides a driving method, a driving circuit and a display device to solve the above-mentioned technical problem of "how to reduce power consumption without affecting the display effect".

[0006] According to one aspect of an embodiment of the present application, the present application provides a driving method, including: detecting whether a picture to be displayed is a continuously repeated picture; if the picture to be displayed is a continuously repeated picture, sending a differential signal to a driver through a timing controller, wherein the differential signal includes a locking signal and a voltage signal corresponding to the continuously repeated picture; when the driver detects that the differential signal carries the locking signal, the driver transmits the differential signal to a voltage locking circuit according to a preset signal transmission strategy; and continuously transmitting the voltage signal corresponding to the continuously repeated picture to a display panel through the voltage locking circuit to drive the display panel to continuously display the continuously repeated picture.

[0007] Optionally, a differential signal is transmitted to the voltage locking circuit according to a preset signal transmission strategy, including: the driver transmits the voltage signal to the voltage locking circuit through a first transmission circuit; the driver transmits the locking signal to the voltage locking circuit through a second transmission circuit, wherein, when the second transmission circuit is enabled, each component on the first transmission circuit is in a dormant state.

[0008] Optionally, after the driver transmits the locking signal to the voltage locking circuit through the second transmission circuit, the method further includes: if the timing controller detects that the next frame to be displayed is different from the continuously repeated frame being displayed, sending a lock release signal to the driver; the driver controls the second transmission circuit to be closed according to the lock release signal.

[0009] Optionally, the method further includes: providing a polarity reversal signal to the driver at preset time intervals through a timing controller, wherein the preset time interval is the cumulative time interval of a target number of frames, and the polarity reversal signal is used to switch the voltage polarity; the driver outputs a voltage signal of corresponding polarity to the display panel under the control of the polarity reversal signal.

[0010] According to another aspect of an embodiment of the present application, the present application provides a driving circuit for driving a display panel, the driving circuit including: a timing controller and a driver, the driver being connected to the timing controller and the display panel respectively, the driver including a voltage locking circuit and at least one transmission circuit; the timing controller being used to detect whether a picture to be displayed is a continuously repeated picture; if the picture to be displayed is a continuously repeated picture, a differential signal is sent to the driver, wherein the differential signal includes a locking signal and a voltage signal corresponding to the continuously repeated picture; the driver being used to transmit the differential signal to the voltage locking circuit according to a preset signal transmission strategy when it is detected that the differential signal carries a locking signal; the voltage signal corresponding to the continuously repeated picture is continuously transmitted to the display panel through the voltage locking circuit to drive the display panel to continuously display the continuously repeated picture.

[0011] Optionally, the driver is also used to transmit the voltage signal to the voltage locking circuit through a first transmission circuit. The first transmission circuit includes a data interface, a shift register, a data register, a line latch and a resistive digital-to-analog converter. The data interface is connected to the driver's controller and shift register respectively, the shift register is connected to the data register, the data register is connected to the line latch, the line latch is connected to the resistive digital-to-analog converter, and the resistive digital-to-analog converter is connected to the voltage locking circuit.

[0012] Optionally, the driver is also used to transmit the locking signal to the voltage locking circuit through a second transmission circuit, wherein when the second transmission circuit is enabled, the various components on the first transmission circuit are in a dormant state, the second transmission circuit includes a data interface and a wire, and the second transmission circuit is used to directly transmit signals between the controller and the voltage locking circuit.

[0013] Optionally, the voltage locking circuit is specifically used to transmit a voltage signal to the display panel when receiving a voltage signal, so as to drive the display panel to start displaying continuously repeated images; when receiving a locking signal, the signal transmitted to the display panel is locked, and the voltage signal is continuously transmitted to the display panel to drive the display panel to continuously display continuously repeated images.

[0014] Optionally, the voltage locking circuit includes a switching tube and a capacitor, the control end of the switching tube is connected to the second transmission circuit, one end of the switching tube is connected to the first transmission circuit, the other end of the switching tube is connected to one end of the capacitor, and the other end of the capacitor is grounded. The switching tube is used to turn on when receiving a voltage signal and output a voltage signal; it is turned off when receiving a locking signal, and at the same time, the charge is released by the capacitor to maintain the stability of the output voltage. The capacitor is used to pre-store the charge corresponding to the voltage signal.

[0015] According to another aspect of the embodiments of the present application, the present application provides a display device, including: a display panel and the above-mentioned driving circuit, where the driving circuit is electrically connected to the display panel.

[0016] The present application provides a driving method, comprising: detecting whether a picture to be displayed is a continuously repeated picture; if the picture to be displayed is a continuously repeated picture, sending a differential signal to a driver via a timing controller, wherein the differential signal includes a lock signal and a voltage signal corresponding to the continuously repeated picture; when the driver detects that the differential signal carries the lock signal, transmitting the differential signal to a voltage lock circuit according to a preset signal transmission strategy; and continuously transmitting the voltage signal corresponding to the continuously repeated picture to a display panel via the voltage lock circuit to drive the display panel to continuously display the continuously repeated picture. When the timing controller detects that the picture to be displayed is a continuously repeated picture, sending a differential signal carrying the lock signal to the driver; the driver sequentially transmits the voltage signal and the lock signal in the differential signal to the voltage lock circuit according to the preset signal transmission strategy. By transmitting a fixed lock signal, the processing flow of the complete voltage signal when displaying the repeated picture is replaced, so that the voltage lock circuit continues to transmit the voltage signal to the display panel after receiving the lock signal, so as to drive the display panel to continuously display the continuously repeated picture, thereby reducing power consumption and ensuring that the display effect is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 A schematic flow chart of an optional driving method provided according to an embodiment of the present application;

[0020] Figure 2A A schematic diagram of sending an original data item according to an embodiment of the present application;

[0021] Figure 2B A schematic diagram of sending data items according to an embodiment of the present application;

[0022] Figure 3 This is an optional polarity reversal schematic diagram provided according to an embodiment of the present application;

[0023] Figure 4 A schematic diagram of an optional driving circuit provided according to an embodiment of the present application;

[0024] Figure 5 Schematic diagram of signal transmission between an optional timing controller and a driver according to an embodiment of the present application;

[0025] Figure 6 A schematic diagram of the composition of an optional driver provided according to an embodiment of the present application;

[0026] Figure 7 A schematic diagram of the composition of another optional driver provided according to an embodiment of the present application;

[0027] Figure 8 A block diagram of an optional driving device provided according to an embodiment of the present application;

[0028] Figure 9 A schematic diagram of an optional display device provided according to an embodiment of the present application.

[0029] Among them, 401 is a timing controller, 402 is a driver, 901 is a display panel, and 902 is a driving circuit. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of this application and have no specific meaning. Therefore, "module" and "component" can be used interchangeably.

[0032] With consumers' increasing preference for large-size, high-refresh-rate displays, displays are trending towards larger sizes and higher refresh rates. However, while high refresh rates and high resolutions enhance display quality, they also increase the power consumption of display devices. This increased power consumption not only imposes an economic burden but also negatively impacts the environment, device performance, and user experience. Furthermore, due to the energy crisis and the greenhouse effect, countries around the world are gradually tightening energy efficiency standards, particularly the EU's energy efficiency regulations for electronic products, which have significantly restricted the development of large-size, high-resolution, and high-refresh-rate displays.

[0033] Therefore, how to reduce power consumption without affecting the display effect has become an urgent problem that needs to be solved in the display industry.

[0034] In order to solve the problems mentioned in the background technology, according to one aspect of the embodiment of the present application, a driving method is provided, such as Figure 1 As shown, including:

[0035] Step 101, detecting whether the image to be displayed is a continuously repeated image;

[0036] Step 103: If the image to be displayed is a continuously repeated image, a differential signal is sent to the driver through the timing controller, wherein the differential signal includes a lock signal and a voltage signal corresponding to the continuously repeated image;

[0037] Step 105 , when the driver detects that the differential signal carries a locking signal, the driver transmits the differential signal to the voltage locking circuit according to a preset signal transmission strategy;

[0038] In step 107 , the voltage locking circuit continuously transmits the voltage signal corresponding to the continuously repeated images to the display panel, so as to drive the display panel to continuously display the continuously repeated images.

[0039] The method of transmitting differential signals from a timing controller to a driver is widely used in various display systems. The power consumption characteristics of the differential signal transmitted by the timing controller to the driver are closely related to voltage changes under an RC load. When the voltage on the differential signal line changes, the current on the signal line also changes in response to the voltage fluctuation. Due to the presence of the RC load, the change in current causes power consumption in the resistor. The faster the voltage changes, the faster the current changes, and thus the greater the power consumption. When the voltage on the differential signal line remains stable, the current on the signal line also remains stable, and the power consumption in the resistor is minimized.

[0040] In this embodiment, the timing controller detects whether the picture to be displayed is a continuously repeated picture. If it is a continuously repeated picture, a differential signal carrying a lock signal is sent to the driver. If it is not a continuously repeated picture, a differential signal without a lock signal is sent to the driver. The differential signal includes voltage data (i.e., a voltage signal) corresponding to the picture.

[0041] By determining whether the received differential signal includes a lock signal, the driver can determine whether the currently transmitted picture data is a continuously repeated picture. If the differential signal includes a lock signal, the driver sends the lock signal and voltage signal in the differential signal to the voltage lock circuit according to the preset signal transmission strategy. If the differential signal does not include a lock signal, the driver transmits and processes the differential signal of each frame in the conventional manner.

[0042] In the preset signal transmission strategy provided in the present application, a voltage signal representing a picture to be displayed is first processed and converted by various components on a first transmission circuit and transmitted to a voltage locking circuit, and then transmitted to a display panel through the voltage locking circuit. This can drive the display panel to display the first frame of the repeated and continuous picture to be displayed; then, a locking signal is transmitted to the voltage locking circuit through a second transmission circuit. After receiving the locking signal, the voltage locking circuit locks the voltage signal output to the display panel and continuously transmits the voltage signal to the display panel, so that the display panel continuously displays subsequent frames of the repeated and continuous picture. By transmitting different data signals through two different transmission circuits, it is still possible to drive the display panel to continuously display repeated and continuous pictures. While ensuring the display effect, it is possible to reduce the power consumption generated by the complete processing flow of the differential signal of each frame of the picture through the same transmission circuit.

[0043] As an optional embodiment, a differential signal is transmitted to a voltage locking circuit according to a preset signal transmission strategy, including: a driver transmits a voltage signal to the voltage locking circuit through a first transmission circuit; the driver transmits a locking signal to the voltage locking circuit through a second transmission circuit, wherein, when the second transmission circuit is enabled, each component on the first transmission circuit is in a dormant state.

[0044] The voltage signal of the differential signal is first transmitted to the voltage locking circuit through the first transmission circuit, which can ensure that the voltage signal is converted and processed by various components on the first transmission circuit, thereby obtaining a voltage signal that can be used by the display panel.

[0045] After the voltage signal is transmitted to the voltage locking circuit via the first transmission circuit, the voltage locking circuit transmits the processed voltage signal to the display panel to drive the display panel to display the first frame of the continuously repeated images. The locking signal is then transmitted to the voltage locking circuit via the second transmission circuit. When the voltage locking circuit receives the locking signal, the locking signal triggers the locking mechanism in the circuit. At this time, the voltage locking circuit locks the signal output, causing the circuit output to be locked at a stable voltage value (i.e., the value of the processed voltage signal). This stable voltage value is continuously transmitted to the display panel. Because the voltage value is locked, the display panel continues to display the same image corresponding to the image data before locking.

[0046] The voltage locking circuit can lock the circuit output according to the preset logic. At this time, the voltage locking circuit will not output a locking signal to the display panel, but will release the charge through the capacitor to output the previously stored voltage signal that has been sent.

[0047] When the second transmission circuit is enabled, each component of the first transmission circuit enters a dormant state. Compared with the prior art, this can reduce the operating power consumption when the components of the first transmission circuit are used to process the voltage signal each time.

[0048] As an optional embodiment, after the driver transmits the locking signal to the voltage locking circuit through the second transmission circuit, the method further includes: if the timing controller detects that the next frame to be displayed is different from the continuously repeated frame being displayed, a lock release signal is sent to the driver; the driver controls the second transmission circuit to be closed according to the lock release signal.

[0049] In conventional technical means, the timing controller sends each data item (differential signal, including the positive phase part data_P and the negative phase part data_N)) one by one, such as Figure 2A As shown, data1, data2, data3...dataM are sent in sequence, and in the technical solution provided by this application, as Figure 2BAs shown, for continuously repeated images, the timing controller only needs to send data1 and HOLD signals. When it detects that the next frame to be displayed is different from the continuously repeated image being displayed, the timing controller will send a lock release signal, that is, UNHOLD signal, to the driver, and then send the new image signal (dataN+1) to the driver. After receiving the lock release signal, the driver temporarily turns off the second transmission circuit and then uses the first transmission circuit to convert dataN+1.

[0050] This embodiment can be specified in the communication protocol agreed upon by the timing controller and the driver. When the timing controller detects that data1, data2, data3...dataN are identical, it will send a HOLD signal (lock signal) after transmitting data1. This means that starting from data2, the timing controller will no longer continue to send the same data, but instead send a fixed potential (usually high or low) until the image data changes.

[0051] When the image to be displayed changes, the timing controller promptly sends a lock release signal to the driver, causing the voltage lock circuit to exit the lock mechanism. When the driver receives the next frame of differential signal, it can perform new analysis and data transmission on the differential signal, ensuring that the display of consecutive repeated images will not affect the display of subsequent new images.

[0052] As an optional embodiment, the method further includes: providing a polarity reversal signal to the driver at preset time intervals through a timing controller, wherein the preset time interval is the cumulative time interval of a target number of frames, and the polarity reversal signal is used to switch the voltage polarity; the driver outputs a voltage signal of corresponding polarity to the display panel under the control of the polarity reversal signal.

[0053] The polarity voltage of an LCD panel refers to the positive or negative polarity of the voltage applied to the liquid crystal material when driving an LCD display. The voltage supplied to the LCD panel requires a range of polarities to mitigate the polarization phenomenon caused by prolonged application of the same polarity voltage across the liquid crystal. However, as the refresh rate of display systems increases, the frequency of LCD flipping does not need to be as high as the refresh rate. Based on this, this application also provides an embodiment for reducing power consumption by extending the polarity flipping period of the driver output channel.

[0054] The preset duration provided in this application is the cumulative duration of the target number of frames. The amount of cycle extension depends on the cumulative duration of the target number of frames. The target number of frames can be set according to actual needs.

[0055] The driver monitors the polarity reversal signal from the timing controller and changes the voltage polarity of its output data according to the signal. Since the period of the polarity reversal signal is doubled, the voltage polarity reversal period of the driver output data is also extended accordingly.

[0056] Figure 3 The polarity reversal diagram provided for this application shows that in a conventional scheme, POL (Pixel Output Latch) switches H / L once in each frame, and the voltage output by the driver to the display panel will also change accordingly. When POL is reversed, the polarity of channel Y output by the driver will also switch (usually the voltage between GM1 to GM7 is used as the positive polarity voltage of the liquid crystal panel, and GM8 to GM14 is used as the negative polarity voltage of the liquid crystal panel).

[0057] In the embodiment provided in the present application, the period of the polarity reversal signal transmitted by the timing controller to the driver is extended (doubled, or even tripled or quadrupled), so that the polarity reversal period of the driver output channel Y is also lengthened, and the voltage reversal of the panel supplied per unit time is reduced, thereby reducing power consumption.

[0058] The present application provides a driving method, comprising: detecting whether a picture to be displayed is a continuously repeated picture; if the picture to be displayed is a continuously repeated picture, sending a differential signal to a driver via a timing controller, wherein the differential signal includes a lock signal and a voltage signal corresponding to the continuously repeated picture; when the driver detects that the differential signal carries the lock signal, transmitting the differential signal to a voltage lock circuit according to a preset signal transmission strategy; and continuously transmitting the voltage signal corresponding to the continuously repeated picture to a display panel via the voltage lock circuit to drive the display panel to continuously display the continuously repeated picture. When the timing controller detects that the picture to be displayed is a continuously repeated picture, sending a differential signal carrying the lock signal to the driver; the driver sequentially transmits the voltage signal and the lock signal in the differential signal to the voltage lock circuit according to the preset signal transmission strategy. By transmitting a fixed lock signal, the processing flow of the complete voltage signal when displaying the repeated picture is replaced, so that the voltage lock circuit continues to transmit the voltage signal to the display panel after receiving the lock signal, so as to drive the display panel to continuously display the continuously repeated picture, thereby reducing power consumption and ensuring that the display effect is not affected.

[0059] According to another aspect of the embodiment of the present application, the present application provides a driving circuit for driving a display panel, such as Figure 4 As shown, the driving circuit includes:

[0060] A timing controller 401 and a driver 402 , wherein the driver 402 is connected to the timing controller 401 and the display panel 901 , respectively, and includes a voltage locking circuit and at least one transmission circuit;

[0061] The timing controller 401 is used to detect whether the picture to be displayed is a continuously repeated picture; if the picture to be displayed is a continuously repeated picture, a differential signal is sent to the driver 402, wherein the differential signal includes a lock signal and a voltage signal corresponding to the continuously repeated picture;

[0062] Driver 402 is used to transmit the differential signal to the voltage locking circuit according to a preset signal transmission strategy when it is detected that the differential signal carries a locking signal; the voltage signal corresponding to the continuously repeated image is continuously transmitted to the display panel through the voltage locking circuit to drive the display panel 901 to continuously display the continuously repeated image.

[0063] The signal transmission between the timing controller and the driver is the key link to ensure the correct presentation of the display screen. Figure 5 This is a schematic diagram of signal transmission between the timing controller and the driver. As shown in the figure, the transmitting end of the timing controller sends image data and control signals to the receiving end of the driver through the differential signal line. When the voltage on the differential signal line changes, the power consumption is the largest, and when the voltage on the differential signal line remains unchanged, the power consumption is the smallest.

[0064] When the images to be displayed are repeated continuously, if the driver processes and transmits the consecutive identical differential signals sent by the timing controller one by one, multiple components are required to perform the same signal processing steps, which will result in high power consumption.

[0065] The technical purpose of this application is to control the voltage change of the driver output to be as small as possible while reducing the power consumption of each component, thereby achieving the technical effect of reducing the power consumption of the entire display process.

[0066] The differential signal sent by the timing controller to the driver carries a locking signal. The driver will first perform a series of normal processing on the voltage signal in the differential signal (implemented through the various components on the first transmission circuit), and then transmit the processed voltage signal to the voltage locking circuit, and then transmit it to the display panel for display; then the driver will directly transmit the locking signal to the voltage locking circuit through the second transmission circuit. The voltage locking circuit will lock the output signal according to the pre-configured logic. In this process, the power consumption generated by using various components to process the differential signal is actually avoided. At this time, the voltage locking circuit still transmits the voltage signal corresponding to the differential signal to the display panel, and the display panel can still display the same pictures continuously.

[0067] Optionally, if the next picture is not a repeated picture, the timing controller can also directly send a new differential signal corresponding to the next picture to the driver. After receiving the new differential signal, the driver will automatically unlock the original signal output and process the new differential signal.

[0068] As an optional embodiment, the first transmission circuit includes a data interface, a shift register, a data register, a line latch and a resistive digital-to-analog converter, the data interface is connected to the controller of the driver and the shift register respectively, the shift register is connected to the data register, the data register is connected to the line latch, the line latch is connected to the resistive digital-to-analog converter, and the resistive digital-to-analog converter is connected to the voltage locking circuit.

[0069] Transmitting the voltage signal of the differential signal to the voltage locking circuit through the first transmission circuit can ensure that the differential signal is processed by the first transmission circuit, thereby obtaining a voltage signal that can be used by the display panel.

[0070] The data interface is used to receive the voltage signal in the differential signal sent by the timing controller and convert it into a parallel digital signal. Through the data interface, the voltage signal in the differential signal can be decoded and converted into a parallel data signal that can be recognized by the driver.

[0071] The shift register is used to transfer the parallel data signals received from the data interface one by one according to the clock pulse, and load them into the corresponding output channels in sequence. The parallel data signals are sequentially shifted into the shift register according to the clock pulse sequence. This process is equivalent to distributing the continuous data signal to each corresponding pixel row or column, ensuring that the data is output correctly in time sequence.

[0072] The data register is used to temporarily store the data output from the shift register, stabilizing the data at a specific timing for subsequent processing. In the data register, the data signal output from the shift register is temporarily stored to ensure that the signal remains consistent and stable before being output to the next stage (row latch).

[0073] The line latch latches all data signals for the current row, ensuring that all pixels in the row are updated simultaneously and that the temporarily stored data is output to the entire row of pixels simultaneously. Once all data registers have been loaded, the line latch latches the entire row of data and prepares to transmit it to the next step in the driver circuit.

[0074] Level shifters convert low-voltage logic signals within the driver into the higher voltage signals required to drive the panel pixels. Pixels in display panels typically require higher voltages to adjust brightness or switch their states. The latched signal is then fed into the level shifter, which converts the low-voltage signal into a high-voltage signal suitable for the panel's operating voltage, preparing it for the next level of analog processing.

[0075] The Resistor Digital-to-Analog Converter (R-DAC) converts the digital signal output from the level shifter into an analog voltage signal. This analog signal is used to precisely control the brightness and color of each pixel. The R-DAC converts the digital signal into an analog signal, and the output voltage corresponds to the brightness and color information of each pixel on the display.

[0076] In display panel driving, the differential signal sent by the timing controller is gradually processed into an analog voltage signal that ultimately drives the pixel through multiple components on the first transmission circuit. Each component plays a key role in the signal transmission chain, ensuring the conversion from digital signal to analog signal.

[0077] As an optional embodiment, the second transmission circuit includes a data interface and a wire, and the second transmission circuit is used to directly transmit signals between the controller and the voltage locking circuit.

[0078] The locking signal is transmitted to the voltage locking circuit through the second transmission circuit. At this time, the various components of the first transmission circuit enter a dormant state, which can reduce the operating power consumption of the components. In addition, the voltage locking circuit can lock the circuit output according to the preset logic. At this time, the locking signal will not be output to the display panel, but the previously stored voltage signal will be output by releasing the charge through the capacitor.

[0079] No components are set on the second transmission circuit. The second transmission circuit only includes a data interface and wires. When it is necessary to send a voltage signal of a continuously repeated image to the display panel (at this time, the first frame of the continuously repeated image has been processed and transmitted), the locking signal is directly transmitted through the second transmission circuit. At this time, there is no need to use the various components on the first transmission circuit mentioned above to perform signal processing, which can greatly reduce the power consumption caused by the operation of the components.

[0080] The driver uses different signal transmission circuits to transmit the voltage signal and the locking signal to the voltage locking circuit in sequence, and controls the components on the transmission circuit to remain in a dormant state when not in use. This not only simplifies the processing flow of the complete differential signal, but also reduces the consumption of components on the transmission circuit. The corresponding voltage signal is also transmitted to the display panel through the voltage locking circuit, so that the display panel can display each picture normally, solving the problem of how to reduce power consumption without affecting the display effect.

[0081] As an optional embodiment, the voltage locking circuit is specifically used to transmit the voltage signal to the display panel when receiving the voltage signal, so as to drive the display panel to start displaying continuously repeated images; when receiving the locking signal, the signal transmitted to the display panel is locked, and the voltage signal is continuously transmitted to the display panel to drive the display panel to continuously display continuously repeated images.

[0082] When the voltage locking circuit receives the voltage signal, the voltage locking circuit does not lock the signal output, and transmits the voltage signal to the display panel through the first transmission circuit in the circuit.

[0083] When the voltage locking circuit receives a locking signal, the circuit will lock the signal output. The locking signal triggers the locking mechanism in the circuit, causing the circuit output to be locked at a stable voltage value (corresponding to the processed voltage signal). This stable voltage value is continuously transmitted to the display panel.

[0084] If the voltage lock circuit does not lock the signal output, the display panel can display normal images based on the received voltage signal. If the voltage lock circuit locks the signal output, the display panel displays a static image based on the received stable voltage signal. Because the voltage value is locked, the display panel will continue to display the same image corresponding to the image data before the lock.

[0085] As an optional embodiment, the voltage locking circuit includes a switching tube and a capacitor, the control end of the switching tube is connected to the second transmission circuit, one end of the switching tube is connected to the first transmission circuit, the other end of the switching tube is connected to one end of the capacitor, and the other end of the capacitor is grounded. The switching tube is used to turn on when receiving a voltage signal and output a voltage signal; it is turned off when receiving a locking signal, and at the same time, the charge is released by the capacitor to maintain the stability of the output voltage. The capacitor is used to pre-store the charge corresponding to the voltage signal.

[0086] When the first transmission circuit sends a voltage signal to the switch tube, the switch tube is turned on, the voltage signal can be transmitted through the switch tube, and at this time the capacitor can store electrical energy from the first transmission circuit.

[0087] When the second transmission circuit sends a locking signal to the control end of the switch tube, the switch tube will be turned off, and the signal transmission will be blocked. At this time, the capacitor can play a role in maintaining voltage stability, thereby achieving signal locking.

[0088] The other end of the capacitor is grounded to form a discharge circuit for the capacitor.

[0089] When a voltage signal is received, the switch tube is turned on, allowing the voltage signal to pass through and outputting the voltage value; when a lock signal is received, the switch tube is turned off, blocking the transmission of the voltage signal, and releasing the charge through the capacitor to output a stable voltage signal.

[0090] When the switch is on, the capacitor is charged and stores the charge corresponding to the input voltage signal; when the switch is off, the capacitor acts as a voltage source and releases the stored charge to maintain the stability of the output voltage.

[0091] Figure 6 The schematic diagram of the composition of the driver provided in the present application is shown in the figure. As shown in the figure, the timing controller (not shown in the figure) sends a differential signal to the driver. If the differential signal does not include a lock signal, the differential signal is transmitted to the voltage lock circuit through the first transmission circuit (including the data interface-shift register-data register-line latch-resistive digital-to-analog converter in the figure). If the differential signal includes a lock signal, the voltage signal in the differential signal is first transmitted to the voltage lock circuit through the first transmission circuit, and then the lock signal (i.e., HOLD in the figure) is transmitted to the voltage lock circuit through the second transmission circuit (including the data interface-wire in the figure). No components are set on the second transmission circuit. The connection part between the resistive digital-to-analog converter and the output buffer in the figure is a voltage lock circuit. The voltage lock circuit includes multiple groups of switch tubes and capacitors. The capacitors are connected in parallel with the switch tubes. When the switch tubes are turned off, the capacitors release their pre-stored charge to maintain the stability of the output voltage, which helps to reduce voltage fluctuations and improve the stability of the circuit. In addition, when the voltage locking circuit transmits signals to the display panel, the signals need to pass through an output buffer. The output buffer is used to buffer the analog signals converted by the resistive digital-to-analog converter to ensure that the signals can be stably transmitted to the pixel array of the display panel without interference or loss.

[0092] By transmitting signals to the voltage locking circuit according to different signal transmission strategies in sequence when detecting that the consecutive images to be displayed are the same image, and controlling the components on the transmission line to remain in a dormant state when not in use, the processing flow of the complete differential signal is simplified and the consumption of components on the transmission line is reduced. The corresponding voltage signal is also transmitted to the display panel through the voltage locking circuit, so that the display panel can display each image normally, solving the problem of how to reduce power consumption without affecting the display effect.

[0093] As another optional embodiment, the present application also provides another schematic diagram of the composition of the driver, which can be Figure 7 The drive shown is locked, and then combined with Figure 7 and Figure 2B The data item transmission diagram illustrates the data locking scheme: After receiving the differential signal carrying the lock signal, the driver locks the first data item, data1, and continues to output data1 to the data register, even if it does not subsequently receive data2, data3, and so on. When different data (dataN+1) appears, the timing controller sends an UNHOLD signal at the position originally transmitting dataN, notifying the driver to release the data lock. At this point, the driver will normally receive and process the differential signals from dataN+1 to dataM.

[0094] The present application uses a driving circuit for driving a display panel, the driving circuit including: a timing controller and a driver, the driver being connected to the timing controller and the display panel respectively, the driver including a voltage locking circuit and at least one transmission circuit; the timing controller being used to detect whether a picture to be displayed is a continuously repeated picture; if the picture to be displayed is a continuously repeated picture, a differential signal is sent to the driver, wherein the differential signal includes a locking signal and a voltage signal corresponding to the continuously repeated picture; the driver being used to transmit the differential signal to the voltage locking circuit according to a preset signal transmission strategy when detecting that the differential signal carries a locking signal; the voltage signal corresponding to the continuously repeated picture is continuously transmitted to the display panel through the voltage locking circuit to drive the display panel to continuously display the continuously repeated picture. When the timing controller detects that the picture to be displayed is a continuously repeated picture, it sends a differential signal carrying a locking signal to the driver. The driver transmits the voltage signal and the locking signal in the differential signal to the voltage locking circuit in sequence according to the preset signal transmission strategy. By transmitting a fixed locking signal to replace the processing flow of the complete voltage signal when displaying repeated pictures, the voltage locking circuit continues to transmit the voltage signal to the display panel after receiving the locking signal, so as to drive the display panel to continuously display continuously repeated pictures, which can not only reduce power consumption but also ensure that the display effect is not affected.

[0095] According to another aspect of the embodiment of the present application, the present application provides a driving device, such as Figure 8 Shown, including:

[0096] The detection module 802 is used to detect whether the picture to be displayed is a continuous and repeated picture;

[0097] The sending module 804 is configured to send a differential signal to the driver through the timing controller if the image to be displayed is a continuously repeated image, wherein the differential signal includes a lock signal and a voltage signal corresponding to the continuously repeated image;

[0098] A first transmission module 806 is configured to transmit the differential signal to the voltage locking circuit according to a preset signal transmission strategy when the driver detects that the differential signal carries a locking signal;

[0099] The second transmission module 808 is configured to continuously transmit a voltage signal corresponding to the continuously repeated images to the display panel via the voltage locking circuit, so as to drive the display panel to continuously display the continuously repeated images.

[0100] It should be noted that the detection module 802 in this embodiment can be used to execute step 101 in the embodiment of the present application, the sending module 804 in this embodiment can be used to execute step 103 in the embodiment of the present application, the first transmission module 806 in this embodiment can be used to execute step 105 in the embodiment of the present application, and the second transmission module 806 in this embodiment can be used to execute step 107 in the embodiment of the present application.

[0101] Optionally, the first transmission module 806 is also used to drive the voltage signal to be transmitted to the voltage locking circuit through the first transmission circuit; the driver transmits the locking signal to the voltage locking circuit through the second transmission circuit, wherein, when the second transmission circuit is enabled, each component on the first transmission circuit is in a dormant state.

[0102] Optionally, the device also includes a release module, which is used to send a lock release signal to the driver after the driver transmits the lock signal to the voltage lock circuit through the second transmission circuit. If the timing controller detects that the next frame to be displayed is different from the continuously repeated frame being displayed, the driver controls the second transmission circuit to be closed according to the lock release signal.

[0103] Optionally, the device also includes a switching module, which is used to provide a polarity reversal signal to the driver through a timing controller every preset time period, wherein the preset time period is the cumulative time period of the target number of frames, and the polarity reversal signal is used to switch the voltage polarity; the driver outputs a voltage signal of corresponding polarity to the display panel under the control of the polarity reversal signal.

[0104] It should be noted here that the examples and application scenarios implemented by the above modules and corresponding steps are the same, but are not limited to the contents disclosed in the above embodiments.

[0105] According to another aspect of the embodiment of the present application, the present application provides a display device, such as Figure 9As shown, it includes: a display panel 901 and the above-mentioned driving circuit 902, and the driving circuit 902 is electrically connected to the display panel 901.

[0106] The driving circuit 902 is configured to execute the above driving method.

[0107] When implementing the embodiments of the present application, reference may be made to the above embodiments, which have corresponding technical effects.

[0108] It is understood that the embodiments described herein may be implemented using hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit may be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described herein, or a combination thereof.

[0109] For software implementation, the technology described herein can be implemented by a unit that performs the functions described herein. The software code can be stored in a memory and executed by a processor. The memory can be implemented in the processor or outside the processor.

[0110] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0111] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0112] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the modules is merely a logical function division. In actual implementation, there may be other division methods, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0113] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0114] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0115] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application are essentially or partly contributed to the prior art or part of the technical solutions can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard drive, a ROM, a RAM, a magnetic disk, or an optical disk. It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. Without further constraints, an element defined by the phrase "comprises a..." does not preclude the existence of additional identical elements in the process, method, article or apparatus that includes the element.

[0116] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A driving method, characterized in that: include: Detect whether the picture to be displayed is a continuous and repeated picture; If the picture to be displayed is the continuously repeated picture, a differential signal is sent to the driver through the timing controller, wherein the differential signal includes a lock signal and a voltage signal corresponding to the continuously repeated picture; When the driver detects that the differential signal carries the locking signal, the driver transmits the differential signal to the voltage locking circuit according to a preset signal transmission strategy; continuously transmitting the voltage signal corresponding to the continuously repeated image to the display panel through the voltage locking circuit, so as to drive the display panel to continuously display the continuously repeated image; The transmitting of the differential signal to the voltage locking circuit according to a preset signal transmission strategy includes: the driver transmitting the voltage signal to the voltage locking circuit through a first transmission circuit; the driver transmitting the locking signal to the voltage locking circuit through a second transmission circuit, wherein, when the second transmission circuit is enabled, each component on the first transmission circuit is in a dormant state.

2. The driving method according to claim 1, wherein: After the driver transmits the locking signal to the voltage locking circuit through the second transmission circuit, the method further includes: If the timing controller detects that the next frame to be displayed is different from the continuously repeated frame being displayed, it sends a lock release signal to the driver; The driver controls the second transmission circuit to be turned off according to the lock release signal.

3. The driving method according to claim 1, wherein: The method further comprises: Providing a polarity reversal signal to the driver via the timing controller at preset time intervals, wherein the preset time interval is the cumulative time interval of a target number of frames, and the polarity reversal signal is used to switch the voltage polarity; The driver outputs the voltage signal of corresponding polarity to the display panel under the control of the polarity reversal signal.

4. A driving circuit for driving a display panel, characterized in that: The driving circuit includes: a timing controller and a driver, wherein the driver is connected to the timing controller and the display panel respectively, and the driver includes a voltage locking circuit and at least one transmission circuit; The timing controller is used to detect whether the picture to be displayed is a continuously repeated picture; if the picture to be displayed is the continuously repeated picture, the timing controller sends a differential signal to the driver, wherein the differential signal includes a lock signal and a voltage signal corresponding to the continuously repeated picture; The driver is configured to, upon detecting that the differential signal carries the locking signal, transmit the differential signal to the voltage locking circuit according to a preset signal transmission strategy; and continuously transmit the voltage signal corresponding to the continuously repeated image to the display panel through the voltage locking circuit, so as to drive the display panel to continuously display the continuously repeated image; The driver is also used to transmit the voltage signal to the voltage locking circuit through a first transmission circuit, wherein the first transmission circuit includes a data interface, a shift register, a data register, a line latch and a resistive digital-to-analog converter. The data interface is respectively connected to the controller of the driver and the shift register, the shift register is connected to the data register, the data register is connected to the line latch, the line latch is connected to the resistive digital-to-analog converter, and the resistive digital-to-analog converter is connected to the voltage locking circuit.

5. The driving circuit according to claim 4, wherein: The driver is also used to transmit the locking signal to the voltage locking circuit through a second transmission circuit, wherein when the second transmission circuit is enabled, the various components on the first transmission circuit are in a dormant state, and the second transmission circuit includes a data interface and a wire, and the second transmission circuit is used to directly transmit signals between the controller and the voltage locking circuit.

6. The driving circuit according to claim 4, wherein: The voltage locking circuit is specifically used to transmit the voltage signal to the display panel when receiving the voltage signal, so as to drive the display panel to start displaying the continuously repeated image; and to lock the signal transmitted to the display panel when receiving the locking signal, and continuously transmit the voltage signal to the display panel to drive the display panel to continuously display the continuously repeated image.

7. The driving circuit according to claim 6, wherein: The voltage locking circuit includes a switching tube and a capacitor. The control end of the switching tube is connected to the second transmission circuit, one end of the switching tube is connected to the first transmission circuit, the other end of the switching tube is connected to one end of the capacitor, and the other end of the capacitor is grounded. The switching tube is used to turn on when receiving the voltage signal and output the voltage signal; and to turn off when receiving the locking signal. At the same time, the charge is released by the capacitor to maintain the stability of the output voltage. The capacitor is used to pre-store the charge corresponding to the voltage signal.

8. A display device, characterized in that: include: A display panel and a driving circuit according to any one of claims 4 to 7, wherein the driving circuit is electrically connected to the display panel.

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