Driving method of display panel, timing controller and display device

Abstract

The application discloses a driving method of a display panel, a time sequence controller and a display device, and comprises the following steps: starting a picture detection function, obtaining original gray scale data of a current display frame, wherein the original gray scale data comprises original gray scale values of each sub-pixel in the display panel; detecting the original gray scale values of each sub-pixel in the display panel; in response to the original gray scale values being greater than or equal to a gray scale threshold value, outputting target gray scale data to control the display panel to display a picture, and controlling the brightness of a backlight source to increase from a current brightness to a target brightness; and the gray scale values of each sub-pixel in the target gray scale data are less than the original gray scale values. The logical power consumption of the display panel can be reduced, and the heating problem of the display panel can be improved; the problems of wrinkles of a backlight film and liquid crystal clear points can be avoided, the efficiency of a chip can be avoided from being affected, and the brightness of the backlight source is controlled to increase from the current brightness to the target brightness, so that the picture quality can be avoided from being affected; that is, the display quality can be improved while the power consumption is reduced.

Description

TECHNICAL FIELD

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

[0002] Liquid Crystal Display (LCD) is widely used in modern information equipment, such as display, television, mobile phone and digital product, due to its advantages of light weight, low power consumption, low radiation and convenient carrying. The main structure of the liquid crystal display device is composed of an array substrate, a color film substrate and a liquid crystal layer filled between the two substrates.

[0003] With the continuous development of display technology, the size, resolution and refresh rate of display panel are required to be higher and higher, and the display panel is also required to have the advantages of narrow frame and low power consumption. However, with the increase of size, refresh rate and resolution, the power consumption of the display device also increases accordingly. Many items in the reliability test of the display device need to be carried out under heavy load picture, and the high power consumption of the heavy load picture leads to serious heating of the display device, which causes problems such as wrinkles of the backlight film and clear points of the liquid crystal, and the high temperature also affects the efficiency of the chip, so reducing the power consumption of the display heavy load picture can effectively improve the picture quality. SUMMARY

[0004] The driving method of the display panel provided by the embodiment of the present application comprises:

[0005] The picture detection function is started, and the original gray scale data of the current display frame is obtained, wherein the original gray scale data comprises original gray scale values of each sub-pixel in the display panel.

[0006] The original gray scale values of each sub-pixel in the display panel are detected.

[0007] In response to the original gray scale value being greater than or equal to a gray scale threshold value, target gray scale data is output to control the display panel to display a picture, and the brightness of the backlight source is increased from a current brightness to a target brightness.

[0008] The gray scale value of each sub-pixel in the target gray scale data is less than the original gray scale value.

[0009] In some possible implementation manners, the control of the brightness of the backlight source from the current brightness to the target brightness specifically comprises:

[0010] The backlight current of the backlight source is adjusted from a first current to a second current; and the second current is greater than the first current.

[0011] In some possible implementation manners, the gray scale threshold is a maximum gray scale value of gray scale values supported by the display panel.

[0012] In some possible implementation manners, a gray scale difference between a maximum gray scale value in the target gray scale data and the original gray scale value is greater than or equal to 10.

[0013] The timing controller provided by the embodiment of the present application comprises a memory in which a computer program is stored, and a processor configured to execute the computer program to implement the driving method of the display panel.

[0014] The display device provided by the embodiment of the present application comprises a display panel, a backlight source, a timing controller, a backlight current control module and a gray scale voltage output module.

[0015] The timing controller is electrically connected to the display panel through the gray scale voltage output module, the gray scale voltage output module is configured to control a gray scale value of each sub-pixel in the display panel, and the timing controller controls the gray scale voltage output module to output target gray scale data to the display panel.

[0016] The backlight source comprises a plurality of array-arranged light emitting devices.

[0017] The timing controller is electrically connected to the backlight source through the backlight brightness control module, the backlight brightness control module is configured to adjust a brightness of the backlight source, and the timing controller controls the brightness of the backlight source to be increased from a current brightness to a target brightness by controlling the backlight brightness control module.

[0018] In some possible implementation manners, the timing controller is electrically connected to the gray scale voltage output module through a PHI signal line.

[0019] In some possible implementation manners, the timing controller is electrically connected to the backlight brightness control module through an I 2 C signal line.

[0020] The computer readable storage medium provided by the embodiment of the present application has a computer program stored thereon, and the program is executed by a processor to implement the steps of the driving method of the display panel.

[0021] The computer device provided by the embodiment of the present application comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor executes the program to implement the steps of the driving method of the display panel.

[0022] The application discloses a driving method of a display panel, a time sequence controller and a display device. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A flow chart of the driving method of the display panel provided by the embodiment of the application is shown in the figure;

[0024] Figure 2 Some structural schematic diagrams of the display panel provided by the embodiment of the application are shown in the figures;

[0025] Figure 3 Some structural schematic diagrams of the time sequence controller provided by the embodiment of the application are shown in the figures;

[0026] Figure 4 Some structural schematic diagrams of the display device provided by the embodiment of the application are shown in the figures;

[0027] Figure 5 Some structural schematic diagrams of the display device provided by the embodiment of the application are shown in the figures;

[0028] Figure 6 Some structural schematic diagrams of the display device provided by the embodiment of the application are shown in the figures;

[0029] Figure 7 Some structural schematic diagrams of the gray scale voltage output module provided by the embodiment of the application are shown in the figures;

[0030] Figure 8 Some working schematic diagrams of the gray scale voltage output module provided by the embodiment of the application are shown in the figures;

[0031] Figure 9 Some working schematic diagrams of the gray scale voltage output module provided by the embodiment of the application are shown in the figures. DETAILED DESCRIPTION

[0032] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings of the embodiments of the present application to make a clear and complete description of the technical solutions of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. And the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. Based on the described embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0033] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the common meaning understood by a person of ordinary skill in the art to which the present application belongs. The terms "first", "second" and similar words used in the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar words mean that the components or objects before the words cover the components or objects listed after the words and their equivalents, without excluding other components or objects. The terms "connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0034] It should be noted that the size and shape of each figure in the drawings do not reflect the true proportions, but only serve to illustrate the content of the present application. And the same or similar reference numbers represent the same or similar elements or elements with the same or similar functions throughout.

[0035] With the continuous development of display technology, the size, resolution and refresh rate of display panels are increasingly required, and at the same time, display panels are required to have advantages such as narrow frame and low power consumption.

[0036] However, with the increase of size, refresh rate and resolution, the power consumption of the display device also increases accordingly. Many items in the reliability test of the display device need to be performed under a heavy load picture, and the high power consumption of the heavy load picture causes the display device to generate a lot of heat, which can cause problems such as wrinkles of the backlight film and clear points of the liquid crystal, and the high temperature also affects the efficiency of the chip, so reducing the power consumption of the display heavy load picture can effectively improve the picture quality.

[0037] For example, the main frequency refresh rate of the display panel is 480Hz high refresh product, and the power consumption of the display heavy load picture is about 7W or so, so the power consumption of the heavy load picture is high.

[0038] It should be noted that the heavy load pattern (Heavy Load Pattern or Stress Pattern) is a specific concept in the testing and verification process of display panels (especially LCD display panels), which refers to a test pattern or picture designed to apply extremely high load or pressure to the display panel. This picture usually contains a large number of pixel changes, such as rapidly switching colors, high-contrast stripes or patterns, or complex graphics moving continuously on the screen, etc.

[0039] The purpose of the heavy load pattern is to simulate the worst-case scenario that the display panel may encounter in actual use, in order to test the tolerance and stability of the display panel. By displaying such a heavy load pattern for a long time, the aging process of the display panel can be accelerated, thereby quickly exposing potential problems such as pixel damage, color distortion, brightness unevenness, flickering phenomenon, etc.

[0040] In the production and quality control process of display panels, heavy load pattern testing is a very important link. It helps manufacturers to find and solve potential problems of display screens, and improves the reliability and durability of products. At the same time, for consumers, it means that they can purchase more stable and reliable display screen products.

[0041] It should be noted that the heavy load pattern is usually performed during the design verification stage of the display panel, the quality control stage during production, or the reliability test stage of the display panel product. In addition, the specific content and parameters of the heavy load pattern test will also vary depending on different display panel types, specifications and application scenarios.

[0042] Figure 1 The flowchart of the driving method of the display panel provided by the embodiments of the present application is shown.

[0043] Based on the above problems, the embodiments of the present application provide a driving method of a display panel, as shown in Figure 1 specifically includes:

[0044] S1, start the picture detection function, obtain the original gray scale data of the current display frame, and the original gray scale data includes the original gray scale value of each sub-pixel in the display panel;

[0045] For example, the original gray scale data of the current display frame is the original gray scale data of the heavy load pattern.

[0046] For example, the pattern detect function (PDF) in the timing controller (TCON) can avoid display panel defects and optimize display results. For example, the pattern detect function can detect defects in the display panel, such as crosstalk patterns, greenish patterns, flicker patterns, and the like. Alternatively, the pattern detect function can be used to detect certain special detection patterns (such as the heavy load pattern required in reliability testing). When these defective patterns or special detection patterns are detected, the timing controller outputs specific control signals (such as H2DOT, POL, POLC, and the like) to control and adjust the driving parameters of the liquid crystal display panel, thereby avoiding or reducing these defects and improving display quality (for example, changing the polarity inversion mode of the liquid crystal, which helps to offset or reduce defects caused by leakage current, coupling capacitance, and the like). Alternatively, the timing controller outputs specific control signals to control and adjust the display parameters of the liquid crystal display panel, thereby achieving the best display effect, such as improving electromagnetic noise and reducing power consumption.

[0047] For example, to avoid misjudgment, the defective patterns and certain special detection patterns are pre-defined and stored in the timing controller. The pattern detect function (PDF) in the timing controller (TCON) is usually implemented by built-in detection algorithms and logic circuits. These algorithms and circuits can recognize specific display patterns and output corresponding control signals according to pre-set rules. These control signals are then transmitted to the driving circuit of the liquid crystal display panel to adjust the driving parameters, display parameters, and other related parameters of the display panel.

[0048] It should be noted that the display panel in the embodiments of the present application can be a liquid crystal display panel. For example, the liquid crystal display panel generally includes an upper substrate and a lower substrate that are bonded together, and liquid crystal molecules encapsulated between the upper substrate and the lower substrate. When displaying a picture, there is a voltage difference between the data voltage loaded on the pixel electrode of each sub-pixel and the common electrode voltage on the common electrode, which can form an electric field, causing the liquid crystal molecules to deflect under the action of the electric field. Different intensities of electric field cause different degrees of deflection of the liquid crystal molecules, resulting in different transmittances of the sub-pixels SPX, so that the sub-pixels SPX achieve different gray-scale brightness, and thus realize picture display.

[0049] Figure 2 Some structural diagrams of the display panel provided by the embodiments of the present application are shown.

[0050] Exemplarily, as shown in Figure 2 The display panel 100 includes a plurality of sub-pixels (R, G, B), and the plurality of sub-pixels (R, G, B) in the display panel can be divided into a plurality of pixel units SPX, each pixel unit can include a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, so that color mixing can be performed by red, green, and blue to realize color display. Alternatively, the pixel unit can include a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel, so that color mixing can be performed by red, green, blue, and white to realize color display. Of course, in actual applications, the light-emitting color of the sub-pixel in the pixel unit can be designed and determined according to the actual application environment, which is not limited herein. The following is described by taking the pixel unit including a red sub-pixel, a green sub-pixel, and a blue sub-pixel as an example.

[0051] Gray scale, generally, the brightness between the darkest and the brightest is divided into several parts to facilitate screen brightness control. For example, the displayed image is composed of red, green, and blue colors, each of which can show different brightness levels, and different brightness levels of red, green, and blue can form different colors. For example, the gray scale bit number of the liquid crystal display panel is 6 bits, and the three colors of red, green, and blue have 64 (i.e., 2 6 ) gray scales, and the 64 gray scale values are 0-63. The gray scale bit number of the liquid crystal display panel is 8 bits, and the three colors of red, green, and blue have 256 (i.e., 2 8 ) gray scales, and the 256 gray scale values are 0-255. The gray scale bit number of the liquid crystal display panel is 10 bits, and the three colors of red, green, and blue have 1024 (i.e., 2 10 ) gray scales, and the 1024 gray scale values are 0-1023. The gray scale bit number of the liquid crystal display panel is 12 bits, and the three colors of red, green, and blue have 4096 (i.e., 2 12 ) gray scales, and the 4096 gray scale values are 0-4093.

[0052] S2, detecting the original gray scale value of each sub-pixel in the display panel;

[0053] Exemplarily, the pattern detection function (PDF) in the timing controller (TCON) is generally set to 2*2 pixel units SPX as a detection unit 11 (for example, as shown in Figure 2 of course, it can also be set to 2*4 pixel units as a detection unit to detect the picture; no specific limitation is made herein, and it can be set according to the requirements.

[0054] S3, in response to the original gray scale value being greater than or equal to the gray scale threshold value, outputting target gray scale data to control the display panel to display the picture and to control the brightness of the backlight source to increase from the current brightness to the target brightness;

[0055] In some embodiments of the present application, the gray scale threshold value is a maximum gray scale value of the gray scale values supported by the display panel.

[0056] For example, when the gray scale bit number of the display panel is 6 bits, the maximum gray scale value of the gray scale values supported by the display panel is 63; when the gray scale bit number of the display panel is 8 bits, the maximum gray scale value of the gray scale values supported by the display panel is 255; when the gray scale bit number of the display panel is 10 bits, the maximum gray scale value of the gray scale values supported by the display panel is 1023; and when the gray scale bit number of the display panel is 12 bits, the maximum gray scale value of the gray scale values supported by the display panel is 4093.

[0057] In some embodiments of the present application, the gray scale value of each sub-pixel in the target gray scale data is less than the original gray scale value.

[0058] In some embodiments of the present application, the gray scale difference between the maximum gray scale value in the target gray scale data and the original gray scale value is greater than or equal to 10.

[0059] For example, the gray scale value of each sub-pixel in the target gray scale data is 245; while the gray scale value of each sub-pixel in the original gray scale data is 255; or, the gray scale value of each sub-pixel in the target gray scale data is 240; while the gray scale value of each sub-pixel in the original gray scale data is 255; and so on.

[0060] In some embodiments of the present application, the control of the brightness of the backlight source to increase from the current brightness to the target brightness specifically comprises: adjusting the backlight current of the backlight source from a first current to a second current; and the second current is greater than the first current.

[0061] For example, the current value of the first current is 15 mA; and the current value of the second current is 17 mA; or, the current value of the first current is 15 mA; and the current value of the second current is 18 mA. It should be noted that the specific current value of the second current is determined according to debugging and testing, and the value can be written into the program code in advance.

[0062] The embodiment of the present application drives the display panel by the above-mentioned method, that is, by starting the picture detection function, when the original gray scale value in the original gray scale data of the current display frame is greater than or equal to the gray scale threshold value, the original gray scale data of the current display frame is adjusted to the target gray scale data to control the display panel to display the picture. Since the gray scale value of each sub-pixel in the target gray scale data is less than the original gray scale value, the logical power consumption of the display panel can be reduced, and the heating problem of the display panel can be improved. The problem of wrinkles of the backlight film sheet / liquid crystal clear point is avoided, and the efficiency of the chip is not affected.

[0063] In addition, by controlling the brightness of the backlight source to increase from the current brightness to the target brightness, the brightness of the display panel cannot meet the specified requirements due to the reduction of the gray scale value of the display panel, so as to avoid affecting the picture quality. That is, the display quality can be improved while reducing the power consumption.

[0064] Figure 3 Some structural diagrams of the timing controller provided by the embodiment of the present application are provided.

[0065] Based on the same inventive concept, the timing controller 300 provided by the embodiment of the present application, as shown in Figure 3 the memory 10, the computer program being stored in the memory 10; the processor 20, the processor 20 being configured to execute the computer program to implement the above-mentioned driving method of the display panel.

[0066] Figure 4 Some structural diagrams of the display device provided by the embodiment of the present application are provided.

[0067] Based on the same inventive concept, the display device provided by the embodiment of the present application, as shown in Figure 4 the display panel 100, the backlight source 200, the timing controller 300, the backlight brightness control module 400, and the gray scale voltage output module 500;

[0068] The timing controller 300 is electrically connected to the display panel 100 through the gray scale voltage output module 500, and the gray scale voltage output module 500 is configured to control the gray scale value of each sub-pixel in the display panel 100. The timing controller 300 controls the gray scale voltage output module 500 to output the target gray scale data to the display panel 100.

[0069] The backlight source 200 includes a plurality of arrayed light emitting devices.

[0070] The timing controller 300 is electrically connected to the backlight source 200 through the backlight brightness control module 400, and the backlight brightness control module 400 is configured to adjust the brightness of the backlight source 200. The timing controller 300 controls the brightness of the backlight source 200 to increase from the current brightness to the target brightness by controlling the backlight brightness control module 400.

[0071] Figure 5 Another structural schematic diagram of the display device provided by the embodiment of the present application. Figure 6 Still another structural schematic diagram of the display device provided by the embodiment of the present application.

[0072] In some embodiments of the present application, as shown in Figure 5 the timing controller 300 is electrically connected with the gray scale voltage output module 500 through a PHI signal line (for example, RXON, RXOP in Figure 5 ).

[0073] In some embodiments of the present application, as shown in Figure 5 and Figure 6 , the timing controller 300 is electrically connected with the backlight brightness control module 400 through an I 2 C signal line (for example, SDA, SCL in Figure 5 and Figure 6 ).

[0074] Exemplarily, as shown in Figure 6 , the backlight brightness control module 400 is electrically connected with the plurality of light emitting devices L in the backlight source 200.

[0075] Exemplarily, the I 2 C signal line is an Inter-Integrated Circuit signal line, which is a simple, bidirectional, two-wire bus standard. This bus standard is mainly used for master-slave communication between the host and the slave in the case of small data volume and short transmission distance. The I2C signal line mainly consists of two signal lines: a serial data line (SDA) and a serial clock line (SCL); the SDA signal line is used for bidirectional data transmission, and in the data transmission process, the data on the SDA signal line is transmitted bit by bit under the control of the SCL signal line, and when the signal on the SCL signal line is a high-level signal, the data on the SDA signal line must be kept stable; and when the signal on the SCL signal line is a low-level signal, the data on the SDA signal line is allowed to change. The signal transmitted on the SCL signal line is a clock signal generated by the timing controller, and the SCL signal line is used for synchronous data transmission, and the clock signal transmitted on the SCL signal line determines the rate and synchronism of data transmission.

[0076] Figure 7 Some structural schematic diagrams of the gray scale voltage output module provided by the embodiment of the present application.

[0077] Exemplarily, as shown in Figure 7As shown, the gray scale voltage output module 500 can provide a plurality of gray scale values to the display panel. The gray scale voltage output module 500 can internally include a plurality of digital-to-analog converters (DACs), a plurality of voltage dividing resistors (Rs), and a plurality of operational amplifiers (GOPs). The digital-to-analog converter (DAC) is used to convert a digital signal (usually in binary form) into an analog signal (such as voltage, current, etc.). The operational amplifier (GOP) can be used to improve the load capacity.

[0078] The working process of the display device shown will be further described below Figure 1 The driving method of the display panel described above is suitable for Figure 4 The working process of the display device shown will be further described below

[0079] First, the picture detection function in the timing controller 300 is in an open state, and the picture of the current display frame is set to be an overload picture, so that the timing controller 300 obtains the original gray scale data of the current display frame, which includes the original gray scale value of each sub-pixel in the display panel 100.

[0080] Secondly, the picture detection function in the timing controller 300 detects the overload picture of the current display frame, i.e. detects the original gray scale value of each sub-pixel in the display panel 100.

[0081] Then, when the picture detection function in the timing controller 300 judges that the original gray scale value is greater than or equal to the maximum gray scale value supported by the display panel 100, i.e. the picture detection function judges that the picture of the current display frame is an overload picture, the timing controller 300 will control the gray scale voltage output module 500 to output target gray scale data to the display panel 100, and the gray scale value of each sub-pixel in the target gray scale data is less than the original gray scale value. When displaying, the gray scale value of each sub-pixel in the display panel 100 is reduced, so as to reduce the power consumption of the display panel 100.

[0082] Figure 8 Some working diagrams of the gray scale voltage output module provided by the embodiment of the present application are shown in the following figures: Figure 9 Some working diagrams of the gray scale voltage output module provided by the embodiment of the present application are shown in the following figures:

[0083] For example, as shown in the following figure: Figure 8 As shown, the maximum gray scale value in the original gray scale value that should be output by the gray scale voltage output module 500 is 255; however, as shown in the following figure: Figure 9As shown, when the picture detection function in the timing controller 300 is turned on, the original gray scale value 255 is detected to be equal to the maximum gray scale value 255 supported by the display panel 100, then the timing controller 300 controls the gray scale voltage output module 500 to output target gray scale data to the display panel 100, and the maximum gray scale value in the target gray scale data is 245.

[0084] Exemplarily, Figure 8 And Figure 9 The values in the above table represent the gray scale values output by the gray scale voltage output module 500.

[0085] Meanwhile, the timing controller 300 controls the backlight brightness control module 400 to control the brightness of the backlight source 200 to increase from the current brightness to the target brightness, i.e., the backlight current provided by the backlight brightness control module 400 is adjusted from the first backlight current to the second backlight current; the second backlight current is greater than the first backlight current; then the brightness of the backlight source is increased, and the brightness reduction caused by the decrease of the gray scale value of each sub-pixel in the display panel 100 can be compensated.

[0086] Thus, the display quality of the display panel is improved while the power consumption of the display panel is reduced, and the probability of damage to the display panel is reduced.

[0087] In specific implementation, in the embodiment of the present application, the display device can be any product or component with display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, etc. Other essential components of the display device are understood by those skilled in the art, and are not described here in detail, and should not be regarded as a limitation on the present application.

[0088] Based on the same inventive concept, the embodiment of the present application further provides a computer readable storage medium, which stores a computer program, and the program is executed by a processor to implement the steps of the driving method of the display panel provided by the embodiment of the present application. Specifically, the present application can adopt the form of a computer program product implemented on one or more computer usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer usable program codes.

[0089] Based on the same inventive concept, the embodiment of the present application further provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the program to implement the steps of the driving method of the display panel provided by the embodiment of the present application.

[0090] Those skilled in the art will appreciate that embodiments of the present application can be devised for a variety of applications. It is therefore intended that the present application cover all such modifications and variations of the application disclosed herein provided they come within the scope of the appended claims and their equivalents. It is intended to

[0091] The present application is described in reference to the drawings using a flowchart and / or a block diagram of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each block of the flowchart and / or block diagram, and combinations of blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processing device or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in the flowchart and / or block diagram block or blocks. Figure 1 means for performing the function specified by the flowchart and / or block diagram block or blocks.

[0092] These computer program instructions can also be stored in a computer- readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in the flowchart and / or block diagram block or blocks. Figure 1 means for performing the function specified by the flowchart and / or block diagram block or blocks.

[0093] The computer program instructions can also be loaded into a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in the flowchart and / or block diagram block or blocks. Figure 1 means for performing the function specified by the flowchart and / or block diagram block or blocks.

[0094] While the preferred embodiments of the application have been described, additional variations and modifications can be employed by those skilled in the art. Therefore, the appended claims are intended to cover all such modifications and variations as fall within the scope of the present application.

[0095] It will be apparent to those skilled in the art that various modifications and variations can be made to the present embodiments without departing from the spirit or scope of the present embodiments. Thus, it is intended that the present embodiments cover the modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

Claims

1. A driving method for a liquid crystal display panel, characterized in that, include: Enable the screen detection function to obtain the original grayscale data of the current display frame. The original grayscale data includes the original grayscale value of each sub-pixel in the display panel. The original grayscale value of each sub-pixel in the display panel is detected; In response to the original grayscale value being greater than or equal to the grayscale threshold, the target grayscale data is output to control the display panel to display the image, and to control the brightness of the backlight to increase from the current brightness to the target brightness; The grayscale value of each sub-pixel in the target grayscale data is less than the original grayscale value.

2. The driving method for a liquid crystal display panel as described in claim 1, characterized in that, The control of increasing the brightness of the backlight from the current brightness to the target brightness specifically includes: The backlight current of the backlight source is controlled to be adjusted from the current first backlight current to the second backlight current; the second backlight current is greater than the first backlight current.

3. The driving method for a liquid crystal display panel as described in claim 1, characterized in that, The grayscale threshold is the maximum grayscale value supported by the display panel.

4. The driving method for a liquid crystal display panel as described in claim 1, characterized in that, The difference between the maximum grayscale value in the target grayscale data and the original grayscale value is greater than or equal to 10.

5. A timing controller, characterized in that, include: A memory, wherein a computer program is stored; A processor, which executes the computer program to implement the driving method for the liquid crystal display panel as described in any one of claims 1-4.

6. A liquid crystal display device, characterized in that, include: Display panel, backlight, timing controller as described in claim 5, backlight brightness control module, and grayscale voltage output module; The timing controller is electrically connected to the display panel through the grayscale voltage output module, and the grayscale voltage output module is configured to control the grayscale value of each sub-pixel in the display panel; The timing controller controls the grayscale voltage output module to output target grayscale data to the display panel; The backlight source includes multiple light-emitting devices arranged in an array; The timing controller is electrically connected to the backlight source through the backlight brightness control module, and the backlight brightness control module is configured to adjust the brightness of the backlight source; the timing controller controls the backlight brightness control module to increase the brightness of the backlight source from the current brightness to the target brightness.

7. The liquid crystal display device as claimed in claim 6, characterized in that, The timing controller is electrically connected to the grayscale voltage output module via the PHI signal line.

8. The liquid crystal display device as claimed in claim 6, characterized in that, The timing controller uses I 2 The C signal line is electrically connected to the backlight brightness control module.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the program implements the steps of the driving method for the liquid crystal display panel as described in any one of claims 1-4.

10. A computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the driving method for the liquid crystal display panel according to any one of claims 1-4.

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