Brightness compensation method, display panel and storage medium

Abstract

The application discloses a brightness compensation method, a display panel and a storage medium. The method comprises the following steps: converting a first picture driving mode into a second picture driving mode through a center control board, wherein color pixels on a frame output by the first picture driving mode have the same polarity, and the second picture driving mode outputs frames, and polarities of adjacent color pixels on the left and the right of the frames are different; and compensating two brightnesses corresponding to two color pixels with the same color and different polarities on the frames output based on the second picture driving mode to compensate the brightness of a display picture. The picture driving mode with the color pixels on the output frames having the same polarity is converted into the picture driving mode with the color pixels on the output frames being different polarities on the left and the right, and the brightness and darkness of the color pixels with different polarities and the same color on the same line are complementary and offset, so that the display picture is prevented from having the difference between the brightness and the darkness caused by the single polarity.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of liquid crystal display, and particularly relates to a brightness compensation method, a display panel and a storage medium. BACKGROUND

[0002] With the development of display technology, people have higher requirements for the display effect of a display. For example, it is required that the crosstalk of a display picture is as slight as possible, which requires display manufacturers to solve the crosstalk problem as much as possible.

[0003] A common method for solving crosstalk is to compensate the common voltage of a color film substrate by detecting the common voltage of an array substrate. However, after the common voltage of the color film substrate is compensated by the common voltage of the array substrate, the increased common voltage of the color film substrate will cause obvious light and dark differences between the frames output in front and back, which will cause the phenomenon that the display effect of the display picture is poor. SUMMARY

[0004] The main purpose of the present application is to provide a brightness compensation method, a display panel and a storage medium, and to solve the technical problem that the existing method for solving the crosstalk of a display picture will cause obvious light and dark differences between the frames output in front and back.

[0005] To achieve the above purpose, the present application provides a brightness compensation method, which comprises the following steps:

[0006] The first picture driving mode is converted into the second picture driving mode by a center control board, wherein the color pixels on a frame output by the first picture driving mode have the same polarity, and the polarities of the color pixels adjacent to each other on the frame output by the second picture driving mode are different.

[0007] Two luminances displayed by two color pixels with the same color and different polarities on the frame output based on the second picture driving mode are offset, so as to compensate the luminance of a display picture.

[0008] Optionally, before the step of converting the first picture driving mode into the second picture driving mode, the method further comprises:

[0009] When it is detected that the display picture has an abnormal display picture, the proportion of the abnormal display picture in the display picture is obtained.

[0010] If the proportion of the abnormal display picture in the display picture is equal to a preset proportion, a preset detection function is started.

[0011] Optionally, after the step of starting the preset detection function, the method further comprises:

[0012] When the proportion of the abnormal display picture on the display picture is greater than a preset proportion, the first picture driving mode is changed to the second picture driving mode.

[0013] Optionally, the color pixels include a first pixel, a second pixel and a third pixel, and the polarities of the color pixels include a positive polarity and a negative polarity, and the step of canceling two luminances corresponding to two color pixels with the same color and different polarities output based on the second picture driving mode includes:

[0014] canceling the first luminance corresponding to the first pixel with the positive polarity and the second luminance corresponding to the first pixel with the negative polarity on the frame output based on the second picture driving mode, and canceling the third luminance corresponding to the second pixel with the positive polarity and the fourth luminance corresponding to the second pixel with the negative polarity on the frame output based on the second picture driving mode, and canceling the fifth luminance corresponding to the third pixel with the positive polarity and the sixth luminance corresponding to the third pixel with the negative polarity on the frame output based on the second picture driving mode, wherein the two luminances corresponding to the color pixels on the same pixel row of the frame are canceled.

[0015] Optionally, after the step of obtaining the proportion of the abnormal display picture on the display picture, the method further includes:

[0016] when the proportion of the abnormal display picture on the display picture is less than the preset proportion, determining whether to trigger an operation of adjusting a common voltage of a display panel on which the display picture is located;

[0017] if the operation of adjusting the common voltage of the display panel is triggered, receiving a voltage variable value, and adjusting the common voltage of the display panel by using the voltage variable value to compensate for the luminance of the display picture.

[0018] Optionally, when the operation is a human triggered operation, if the operation of adjusting the common voltage of the display panel is triggered, the step of receiving the voltage variable value includes:

[0019] if the operation of adjusting the common voltage of the display panel is triggered, the display panel displays a preset adjustment picture, so that a user uploads the voltage variable value according to the preset adjustment picture.

[0020] when the uploaded voltage variable value is detected, the voltage variable value is received.

[0021] Optionally, when the operation is an automatic triggering operation, and the operation of adjusting the common voltage of the display panel is triggered, the step of receiving the voltage variable value comprises:

[0022] If the operation of adjusting the common voltage of the display panel is triggered, the current value is obtained by the sensor;

[0023] After the voltage variable value is determined according to the current value and the preset current value, the voltage variable value is received.

[0024] Optionally, after the step of offsetting two luminances corresponding to two color pixels with the same color and different polarities displayed on the frame output based on the second picture driving mode to compensate the luminance of the display picture, the method further comprises:

[0025] If it is detected that the display picture does not exist an abnormal display picture, the second picture driving mode is changed back to the first picture driving mode by the center control board.

[0026] In addition, to achieve the above-mentioned purpose, the present application also provides a display panel, comprising a memory, a processor and a computer processing program stored in the memory and executable on the processor, and the processor executes the computer processing program to realize the steps of the above-mentioned luminance compensation method.

[0027] In addition, to achieve the above-mentioned purpose, the present application also provides a computer readable storage medium, and the computer readable storage medium stores a computer program, and the computer program is executed by the processor to realize the steps of the above-mentioned luminance compensation method.

[0028] The application converts the first picture driving mode into the second picture driving mode through the center control board, wherein the color pixels on the frame output by the first picture driving mode have the same polarity, and the polarities of the color pixels adjacent to each other on the frame output by the second picture driving mode are different; the two luminances displayed by the two color pixels with the same color and different polarities on the frame output based on the second picture driving mode are offset to compensate the luminance of the display picture, and the voltage difference between the common voltage of the increased color filter substrate and the voltage of the color pixel with the positive polarity becomes small, which causes the frame where the color pixel is located to cause the luminance of the display picture to be dark, and the voltage difference between the color pixel with the negative polarity becomes large, which causes the frame where the color pixel is located to cause the luminance of the display picture to be bright, and the reason for the obvious difference between the frames output before and after is that the color pixels on the frame output by the existing picture driving mode have the same polarity, and the picture driving mode is converted into the picture driving mode in which the color pixels adjacent to each other on the frame output have different polarities when the display picture has the abnormal display picture with the difference between the luminance and the darkness, and the complementary and offset between the luminance and the darkness of the color pixels with different polarities and the same color on the same row avoid the situation that the display picture has the difference between the luminance and the darkness due to the single polarity of the color pixels on the frame output. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a terminal structure schematic diagram of a hardware running environment related to the embodiment scheme of the application;

[0030] Figure 2 is a flowchart of the first embodiment of the luminance compensation method of the application;

[0031] Figure 3 is a waveform schematic diagram of the common voltage of the array substrate, the common voltage of the color filter substrate and the gate signal in the scanning direction;

[0032] Figure 4 is a schematic diagram of the color pixels and the gray scale pixels on the frame output by the first picture driving mode;

[0033] Figure 5 is a schematic diagram of the color pixels and the gray scale pixels on the frame output by the second picture driving mode;

[0034] Figure 6 is a flowchart of the second embodiment of the luminance compensation method of the application.

[0035] The implementation, the functional features and the advantages of the application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0036] It should be understood that the specific embodiments described herein are merely intended to explain the application and are not intended to limit the application.

[0037] As Figure 1 shown, Figure 1 is a terminal structure schematic diagram of a hardware running environment involved in the embodiment scheme of the present application.

[0038] The application brightness compensation method application carrier is a display panel, as Figure 1 shown, the display panel can include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002. Among them, the communication bus 1002 is used to realize the connection communication between these components. The user interface 1003 can include a display area (Display), an input unit such as a keyboard (Keyboard), and an optional user interface 1003, which can also include a standard wired interface, a wireless interface. The network interface 1004 can optionally include a standard wired interface, a wireless interface (such as a WI-FI interface). The memory 1005 can be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a magnetic disk memory. The memory 1005 can also be a storage device independent of the aforementioned processor 1001.

[0039] Optionally, the display panel can also include a camera, an RF (Radio Frequency, radio frequency) circuit, a sensor, an audio circuit, a WiFi module, etc. Among them, the sensor such as light sensor, motion sensor and other sensors. Specifically, the light sensor can include an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display screen according to the brightness of the ambient light, and the proximity sensor can turn off the display screen and / or backlight when the mobile terminal is moved to the ear. As a kind of motion sensor, gravity acceleration sensor can detect the size of acceleration in each direction (generally three axes), and can detect the size and direction of gravity when stationary, which can be used for identifying mobile terminal posture Application (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, knocking) and the like; of course, the mobile terminal can also be configured with a gyroscope, barometer, hygrometer, thermometer, infrared sensor and other sensors, which will not be repeated here.

[0040] Those skilled in the art can understand that Figure 1 the display panel structure shown in the figure does not constitute a limitation on the display panel, and can include more or fewer components than the figure, or combine certain components, or different component arrangements.

[0041] As Figure 1 shown, the memory 1005 as a kind of computer storage medium can include an operating system, a network communication module, a user interface module and a computer processing program.

[0042] In Figure 1 In the terminal shown, the network interface 1004 is mainly used for connecting a background server and communicating data with the background server; the user interface 1003 is mainly used for connecting a client (user end) and communicating data with the client; and the processor 1001 can be used to call a computer processing program stored in the memory 1005 and perform the following operations:

[0043] The first picture driving mode is converted into the second picture driving mode by the central control panel, wherein color pixels on a frame output by the first picture driving mode have the same polarity, and polarities of color pixels adjacent to each other on the frame output by the second picture driving mode are different;

[0044] Two luminances respectively corresponding to two color pixels with the same color and different polarities on the frame output based on the second picture driving mode are offset to compensate for luminance of a display picture.

[0045] Further, the processor 1001 can call a computer program stored in the memory 1005 and further perform the following operations:

[0046] Before the step of converting the first picture driving mode into the second picture driving mode, when it is detected that there is an abnormal display picture in the display picture, a proportion of the abnormal display picture in the display picture is obtained;

[0047] If the proportion of the abnormal display picture in the display picture is equal to a preset proportion, a preset detection function is started.

[0048] Further, the processor 1001 can call a computer program stored in the memory 1005 and further perform the following operations:

[0049] After the step of starting the preset detection function if the proportion of the abnormal display picture in the display picture is equal to the preset proportion, when it is detected by the preset detection function that the proportion of the abnormal display picture in the display picture is greater than the preset proportion, the step of converting the first picture driving mode into the second picture driving mode is performed.

[0050] Further, the processor 1001 can call a computer program stored in the memory 1005 and further perform the following operations:

[0051] The step of canceling two luminances corresponding to two color pixels with the same color and different polarities on the frame output based on the second picture driving mode includes: canceling two-by-two corresponding first and second luminances corresponding to the first pixel with positive and negative polarities on the frame output based on the second picture driving mode, canceling two-by-two corresponding third and fourth luminances corresponding to the second pixel with positive and negative polarities on the frame output based on the second picture driving mode, and canceling two-by-two corresponding fifth and sixth luminances corresponding to the third pixel with positive and negative polarities on the frame output based on the second picture driving mode, wherein the two color pixels corresponding to the two-by-two corresponding luminances are located on the same pixel row of the frame.

[0052] Further, the processor 1001 can invoke the computer program stored in the memory 1005, and further perform the following operations:

[0053] After the step of obtaining the proportion of the abnormal display picture on the display picture, when it is detected that the proportion of the abnormal display picture on the display picture is less than the preset proportion, it is determined whether to trigger the operation of adjusting the common voltage of the display panel on which the display picture is located.

[0054] If the operation of adjusting the common voltage of the display panel is triggered, a voltage variable value is received, and the common voltage of the display panel is adjusted by the voltage variable value to compensate for the brightness of the display picture.

[0055] Further, the processor 1001 can invoke the computer program stored in the memory 1005, and further perform the following operations:

[0056] If the operation of adjusting the common voltage of the display panel is triggered, the step of receiving the voltage variable value includes: if the operation of adjusting the common voltage of the display panel is triggered, the display panel displays a preset adjustment picture, so that the user uploads the voltage variable value according to the preset adjustment picture.

[0057] When the uploaded voltage variable value is detected, the voltage variable value is received.

[0058] Further, the processor 1001 can invoke the computer program stored in the memory 1005, and further perform the following operations:

[0059] If the operation of adjusting the common voltage of the display panel is triggered, the step of receiving the voltage variable value includes:

[0060] If the operation of adjusting the common voltage of the display panel is triggered, a current value is acquired by the sensor;

[0061] After the voltage variable value is determined according to the current value and a preset current value, the voltage variable value is received.

[0062] Further, the processor 1001 can invoke a computer program stored in the memory 1005 and further perform the following operations:

[0063] After the step of offsetting two luminances respectively displayed by two color pixels with the same color and different polarities on the frame output based on the second picture driving mode to compensate the luminance of the display picture, if it is detected that the display picture does not exist an abnormal display picture, the second picture driving mode is changed back to the first picture driving mode by the center control board.

[0064] Referring to Figure 2 , Figure 2 is a flowchart of a first embodiment of the luminance compensation method of the present application. In the present embodiment, the luminance compensation method comprises the following steps:

[0065] In step S10, the first picture driving mode is changed to the second picture driving mode by the center control board, wherein the color pixels on the frame output by the first picture driving mode have the same polarity, and the polarities of the color pixels adjacent to each other on the frame output by the second picture driving mode are different.

[0066] Specifically, first, it is explained why the first picture driving mode is changed to the second picture driving mode to compensate the luminance of the display picture.

[0067] In combination with Figure 3 , it is explained that Figure 3 After the common voltage of the array substrate is detected to compensate the common voltage of the color film substrate by the existing crosstalk solving method, the waveform diagrams of the common voltage of the array substrate, the common voltage of the color film substrate and the gate signal along the scanning direction are shown. According to the diagrams, after the common voltage of the array substrate is detected to compensate the common voltage of the color film substrate, a pre-charged data signal is brought, the common voltage of the array substrate (i.e. Acom in Figure 3 ) is pulled down by both ends of the pre-charged data signal to form a waveform of a "convex" character, at this time, the common voltage of the color film substrate (i.e. Vcom in Figure 3 ) is compensated upward at both ends of the pre-charged data signal, thus two upward common voltage peaks of the color film substrate appear here, and the gate signal (i.e. Figure 3The Gate in the image pulls the pre-charged data signal downwards from both ends. The common voltage of the color filter substrate, as the intermediate value between the positive and negative color pixels, plays a role in balancing the brightness of the positive and negative color pixels. When the common voltage of the color filter substrate increases, breaking the balance between the positive and negative color pixels, the voltage difference between the common voltage of the color filter substrate and the voltage of the positive color pixels will decrease, resulting in the brightness of the output frames with positive color pixels becoming darker. Conversely, the voltage difference between the common voltage of the color filter substrate and the voltage of the negative color pixels will increase, resulting in the brightness of the output frames with negative color pixels becoming brighter.

[0068] Reference Figure 4 Based on the existing situation where the color pixels in a frame of output have the same polarity (i.e., only positive or negative color pixels exist in a frame), frame N (i.e. Figure 4 Frame N outputs color pixels that are all positive polarity, therefore the displayed image based on frame N appears dark. Frame N+1 (i.e., ...) Figure 4 The color pixels of Frame N+1 are all negative, so the display based on Frame N+1 is too bright. Therefore, there is a significant difference in brightness between the displayed image and the frame N+1 during the switching process.

[0069] In view of the above, this embodiment proposes a brightness compensation method. Based on the characteristic that the voltage difference between the common voltage of the color filter substrate and the voltage of the positive polarity color pixel decreases, causing the output frame with positive polarity color pixels to darken, and the voltage difference between the common voltage of the color filter substrate and the voltage of the negative polarity color pixel increases, causing the output frame with negative polarity color pixels to brighten, the existing first screen driving method where the color pixels on the output frame have the same polarity is transformed into a second screen driving method where the adjacent color pixels on the left and right sides of the output frame have different polarities. By canceling out the brightness difference between color pixels of different polarities on a frame, the significant difference in brightness in the displayed image is eliminated.

[0070] in, Figure 4 The first pixel is represented by a diagonal horizontal stripe, the second pixel by a polka dot pattern, the third pixel by a checkered pattern, and the blackened squares represent grayscale pixels.

[0071] It should be noted that the switching between the first and second screen driving modes is controlled by the central control board, which is located on the PCB (Printed Circuit Board) of the display panel. When the central control board receives a signal to switch screen driving modes, it controls the current screen driving mode to switch to the other screen driving mode.

[0072] The center control board is also called a TCON (Timing Controller), a logic board, or a screen driving board, and is used to drive and control the display panel.

[0073] In step S20, two luminances corresponding to two color pixels with the same color and different polarities on the frame output based on the second picture driving mode are offset to compensate for the luminance of the display picture.

[0074] Specifically, the positive and negative polarities of the color pixels on the output frame are modified by the second picture driving mode, so that the color pixels adjacent to each other on the output frame have different polarities. By offsetting the two luminances corresponding to the two color pixels with the same color and different polarities on the same row of the frame, the luminance of the positive polarity color pixel with a bright luminance compensates for the luminance of the positive polarity color pixel with a dark luminance, and the luminance of the negative polarity color pixel with a dark luminance compensates for the luminance of the negative polarity color pixel with a bright luminance. In this way, when the common voltage of the color film substrate increases, the display picture with the same polarity of the color pixels on the output frame does not have a significant difference in brightness.

[0075] Optionally, the step of offsetting the two luminances corresponding to the two color pixels with the same color and different polarities on the frame output based on the second picture driving mode to compensate for the luminance of the display picture in step S20 includes:

[0076] In step S201, the first luminance corresponding to the first pixel with a positive polarity and the second luminance corresponding to the first pixel with a negative polarity on the frame output based on the second picture driving mode are offset corresponding to each other, the third luminance corresponding to the second pixel with a positive polarity and the fourth luminance corresponding to the second pixel with a negative polarity on the frame output based on the second picture driving mode are offset corresponding to each other, and the fifth luminance corresponding to the third pixel with a positive polarity and the sixth luminance corresponding to the third pixel with a negative polarity on the frame output based on the second picture driving mode are offset corresponding to each other. The color pixels corresponding to the two luminances offset corresponding to each other are located on the same pixel row of the frame.

[0077] Specifically, the frame output by the second picture driving mode is as shown in FIG. 2. The color pixels include a first pixel, a second pixel, and a third pixel. The polarities of the color pixels include a positive polarity and a negative polarity. In addition, the frame also includes grayscale pixels. The color pixels are mainly used in this embodiment. Figure 5

[0078] According to​Figure 5 It can be seen that when the picture driving mode is changed to the second picture driving mode, the color pixels on the output frame no longer have the same polarity, but the polarities of the color pixels adjacent to each other are different.

[0079] Specifically, taking the first pixel as an example, in the frame N and the frame N+1 output by the first picture driving mode, the first pixel only has positive polarity in the frame N, and only has negative polarity in the frame N+1, and there is a case that the brightness of the first pixel is not enough in the frame N but is too bright in the frame N+1, while in the frame N (i.e. Figure 5 ) and the frame N+1 (i.e. Figure 5 ) output by the second picture driving mode of the embodiment, the first pixel has both positive polarity and negative polarity in the frame N and the frame N+1, and the first brightness corresponding to the positive polarity first pixel with dark brightness and the second brightness corresponding to the negative polarity first pixel with bright brightness on the same row are offset, for example Figure 5 the brightness corresponding to the positive polarity a pixel and the brightness corresponding to the negative polarity a pixel on the first row are offset, so that the brightness of the negative polarity a pixel with bright brightness compensates the brightness of the positive polarity a pixel with dark brightness on the frame N, and the brightness of the positive polarity a pixel with dark brightness compensates the brightness of the negative polarity a pixel with bright brightness on the frame N+1, so as to eliminate the difference in brightness of the display picture.

[0080] Taking the second pixel as an example, in the frame N and the frame N+1 output by the first picture driving mode, the second pixel only has positive polarity in the frame N, and only has negative polarity in the frame N+1, and there is a case that the brightness of the second pixel is not enough in the frame N but is too bright in the frame N+1, while in the frame N and the frame N+1 output by the second picture driving mode of the embodiment, the second pixel has both positive polarity and negative polarity in the frame N and the frame N+1, and the third brightness corresponding to the positive polarity second pixel with dark brightness and the fourth brightness corresponding to the negative polarity second pixel with bright brightness on the same row are offset, for example Figure 5 the brightness corresponding to the positive polarity b pixel and the brightness corresponding to the negative polarity b pixel on the first row are offset, so that the brightness of the negative polarity b pixel with bright brightness compensates the brightness of the positive polarity b pixel with dark brightness on the frame N, and the brightness of the positive polarity b pixel with dark brightness compensates the brightness of the negative polarity b pixel with bright brightness on the frame N+1, so as to eliminate the difference in brightness of the display picture.

[0081] Taking the third pixel as an example, in the frame N and frame N+1 output by the first picture driving mode, the third pixel only has positive polarity in the frame N, and only has negative polarity in the frame N+1, and there is a case that the brightness of the third pixel in the frame N is not enough, but the brightness in the frame N+1 is too bright, while in the frame N and frame N+1 output by the second picture driving mode of the embodiment, the third pixel has both positive polarity and negative polarity in the frame N and frame N+1, and the fifth brightness corresponding to the third pixel with dark positive polarity displayed on the same row and the sixth brightness corresponding to the third pixel with bright negative polarity are offset, for example Figure 5 The brightness corresponding to the positive polarity c pixel in the first row and the brightness corresponding to the negative polarity c pixel are offset, so that the brightness of the positive polarity c pixel with bright brightness compensates the brightness of the positive polarity c pixel with dark brightness in the frame N, and the brightness of the positive polarity c pixel with dark brightness compensates the brightness of the positive polarity c pixel with bright brightness in the frame N+1, so as to realize the elimination of the difference between the display pictures.

[0082] wherein, Figure 5 The diagonal horizontal lines are first pixels, the wave dot lines are second pixels, the square grid lines are third pixels, and the black squares are gray scale pixels. In actual application, the color pixels include red pixels, blue pixels and green pixels. In the embodiment, the first pixels, the second pixels and the third pixels are not limited to specific pixel colors, but the first pixels, the second pixels and the third pixels are different pixel colors.

[0083] Optionally, after the step of offsetting the two brightnesses corresponding to the two color pixels with the same color and different polarities in the frame output based on the second picture driving mode in step S20 to compensate the brightness of the display picture, the method further comprises:

[0084] In step S202, if it is detected that the display picture does not exist abnormal display picture, the second picture driving mode is changed back to the first picture driving mode by the center control board.

[0085] Specifically, the display picture is controlled by a front-end signal (a display card on a computer), the signal is transmitted to a PCBA, and then the signal is processed by a center control board on a PCB, and finally the signal is transmitted to a display panel. When the display picture based on the front-end signal no longer exists abnormal display picture, it is indicated that the display picture does not exist the difference between bright and dark at this time, so the display picture no longer needs to be displayed based on the second picture driving mode at this time, and therefore the center control board changes the second picture driving mode back to the first picture driving mode, so that the display panel saves driving resources.

[0086] In the embodiment, based on the fact that the voltage difference between the increased common voltage of the color film substrate and the voltage of the color pixel with positive polarity becomes smaller, and the voltage difference between the voltage of the color pixel with negative polarity becomes larger, which results in the existence of obvious light-dark difference between the front and rear output frames, when the abnormal display screen with light-dark difference exists in the display screen, the screen driving mode of the color pixel on the existing output frame with the same polarity is changed to the screen driving mode of the color pixel on the left and right adjacent color pixel on the output frame with different polarities, based on the complement and offset of the brightness and darkness between the color pixels with different polarities and the same color on the same row, the existing display screen with light-dark difference caused by the existence of only a single polarity of the color pixel on the output frame is avoided.

[0087] Referring to Figure 6 , Figure 6 The second embodiment of the brightness compensation method is based on the first embodiment of the brightness compensation method.

[0088] In the second embodiment of the brightness compensation method, before the step of changing the first screen driving mode to the second screen driving mode in step S10, the method further comprises:

[0089] Step A, when detecting that the display screen has an abnormal display screen, obtaining the proportion of the abnormal display screen on the display screen.

[0090] Specifically, when the display screen based on the front-end signal exists an abnormal display screen, the proportion of the abnormal display screen on the entire display screen is obtained through the central control panel, and different brightness compensation operations are triggered according to different proportions.

[0091] Optionally, after the step of obtaining the proportion of the abnormal display screen on the display screen in step A, the method further comprises:

[0092] Step A1, when detecting that the proportion of the abnormal display screen on the display screen is less than the preset proportion, determining whether to trigger the operation of adjusting the common voltage of the display panel where the display screen is located.

[0093] When the proportion of the abnormal display screen in the display screen is less than the preset proportion through the central control panel, and assuming that the preset proportion is 90%, i.e., the proportion of the abnormal display screen in the display screen is less than 90%, it is determined whether the user needs to adjust the screen flicker caused by the inconsistency of the brightness of the display screen of the front and rear frames, i.e., adjust the common voltage (i.e., Best Vcom) of the display panel, so as to achieve the symmetry of the pixel voltage on the pixels on the front and rear frames, thereby improving the problem of screen flicker.

[0094] Step A2, if the operation of adjusting the common voltage of the display panel is triggered, a voltage variable value is received, and the common voltage of the display panel is adjusted by the voltage variable value to compensate the brightness of the display picture.

[0095] Specifically, when the operation of adjusting the common voltage of the display panel is triggered, a voltage variable value is received based on the operation, and the current common voltage of the display panel is adjusted according to the voltage variable value to improve the flicker problem of the display picture at this time.

[0096] It should be noted that the improvement of the display flicker problem is performed when the proportion of the abnormal display picture in the display picture is less than the preset proportion, because the flicker problem of the display picture is caused by the inconsistency of the brightness of the display picture of the front and rear frames, and adjusting the common voltage of the display panel to improve the flicker problem is equivalent to compensating the brightness of the display picture of the front and rear frames to improve the flicker problem.

[0097] It should be noted that the improvement of the display flicker problem is performed when the proportion of the abnormal display picture in the display picture is less than the preset proportion, because the flicker problem of the display picture is caused by the inconsistency of the brightness of the display picture of the front and rear frames, and adjusting the common voltage of the display panel to improve the flicker problem is equivalent to compensating the brightness of the display picture of the front and rear frames to improve the flicker problem.

[0098] Optionally, in step A2, if the operation of adjusting the common voltage of the display panel is triggered, the step of receiving the voltage variable value comprises:

[0099] Step A21, if the operation of adjusting the common voltage of the display panel is triggered, the display panel displays a preset adjustment picture, so that the user uploads the voltage variable value according to the preset adjustment picture.

[0100] Step A22, when the uploaded voltage variable value is detected, the voltage variable value is received.

[0101] Specifically, if the operation at this time is a human triggered operation, i.e. the operation of adjusting the flicker of the display picture triggered by the user using the display panel, the display panel at this time displays a preset adjustment picture, so that the user uploads the corresponding voltage variable value according to the preset adjustment picture. When the display panel receives the voltage variable value uploaded by the user, the common voltage is adjusted by the voltage variable value. Because the voltage variable value is uploaded by the user, the user uploads the voltage variable value based on the flicker degree of the current display picture (i.e. the preset adjustment picture), so that the voltage variable value can improve the flicker problem of the display picture that the user can be satisfied with.

[0102] Optionally, if step A2 triggers an operation to adjust the common voltage of the display panel, the step of receiving the voltage variable value includes:

[0103] Step A23: If an operation to adjust the common voltage of the display panel is triggered, the current current value is obtained through the sensor.

[0104] Step A24: After determining the voltage variable value based on the current current value and the preset current value, the voltage variable value is received.

[0105] If the operation at this time is an automatically triggered operation, that is, when an abnormal display is detected and the proportion of the abnormal display on the screen is less than the preset proportion, the display device is set to automatically trigger an operation to adjust the screen flicker. Specifically, at this time, the display device will automatically trigger an operation to adjust the screen flicker.

[0106] When adjusting the display screen to reduce flickering, the system first obtains the current value of the display panel via a sensor, such as a photosensitive element, and then compares the current value with a preset current value.

[0107] The difference between them is used to determine the voltage variable value.

[0108] The current value of the display panel is based on the different deflection angles of the pixels under the influence of positive and negative polarity voltages, resulting in different light transmittance through the photosensitive elements, and thus generating the current value; while the preset current...

[0109] Current value refers to the current value generated when, under ideal conditions, the deflection angle of a pixel is the same under the action of positive and negative polarity voltages, and the light transmittance through the photosensitive element is the same. The difference between the current value and the preset current value is used to adjust the common voltage by increasing or decreasing the difference, thereby compensating for the deflection angle of the pixel under the action of positive and negative polarity voltages and improving or preventing screen flicker.

[0110] Step B: If the proportion of the abnormal display screen on the display screen is equal to the preset proportion, then the preset detection function is activated.

[0111] 5. Optionally, in step B, if the percentage of the abnormal display screen on the display screen is equal to...

[0112] After enabling the preset detection function at the preset percentage, the steps also include:

[0113] Step B1: When the preset detection function detects that the proportion of the abnormal display screen on the display screen is greater than the preset proportion, the step of changing the first screen driving mode to the second screen driving mode is executed.

[0114] 0When the proportion of the abnormal display screen in the display screen detected by the center control panel is equal to the preset proportion, it is assumed that the preset proportion is 90%, i.e., the proportion of the abnormal display screen in the display screen is equal to 90%, at this time, the center control panel starts the preset detection function, and it should be noted that the preset detection function is to detect whether the proportion of the abnormal display screen in the display screen exceeds the preset proportion, i.e., whether the proportion of the abnormal display screen in the display screen exceeds 90%, and when it exceeds 90%, the center control panel changes the first screen driving mode to the second screen driving mode, so as to improve the bright-dark difference of the abnormal display screen.

[0115]

[0116] The proportion of the abnormal display screen in the display screen detected by the center control panel is equal to the preset proportion, it is assumed that the preset proportion is 90%, i.e., the proportion of the abnormal display screen in the display screen is equal to 90%, at this time, the center control panel starts the preset detection function, and it should be noted that the preset detection function is to detect whether the proportion of the abnormal display screen in the display screen exceeds the preset proportion, i.e., whether the proportion of the abnormal display screen in the display screen exceeds 90%, and when it exceeds 90%, the center control panel changes the first screen driving mode to the second screen driving mode, so as to improve the bright-dark difference of the abnormal display screen.

[0117] In the embodiment, when it is detected that the display screen has an abnormal display screen, the proportion of the abnormal display screen in the display screen is obtained, and the proportion of the abnormal display screen in the entire display screen is obtained,

[0118] According to different proportions, different brightness compensation operations are triggered, if the proportion of the abnormal display screen in the display screen is equal to the preset proportion, the preset detection function is started, so as to change the first screen driving mode to the second screen driving mode by the center control panel, so as to improve the bright-dark difference of the abnormal display screen.

[0119] In addition, the application also provides a display panel, which comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the brightness compensation method when executing the computer program.

[0120] In addition, the application also provides a computer readable storage medium, which stores a computer program, and the steps of the brightness compensation method are implemented when the computer program is executed by the processor.

[0121] It should be noted that in this paper, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or system. Without more limitations, the element defined by the statement "including a" does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0122] The above application embodiment serial number is only for description, not representing the advantages and disadvantages of the embodiments.

[0123] ​Those skilled in the art can clearly understand the above-mentioned embodiment method can be realized by means of software and the necessary general hardware platform, of course, can also be through hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application essentially or say the part of the prior art contribution can be embodied in the form of software products, the computer software product is stored in the above-mentioned storage medium (such as ROM / RAM, magnetic disc, optical disc), including a number of instructions to make a terminal device (may be a mobile phone, computer, server, air conditioner, or network equipment, etc.) executes the method of each embodiment of the present application.

[0124] The above is only the preferred embodiment of the present application, not therefore limit the patent scope of the present application, any equivalent structure or equivalent process transformation using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A luminance compensation method characterized by, The brightness compensation method comprises the following steps: When the proportion of the abnormal display screen on the display screen is equal to a preset proportion, a preset detection function is started; When the proportion of the abnormal display screen on the display screen is greater than a preset proportion, a first picture driving mode is changed to a second picture driving mode through a central control panel, wherein the color pixels on a frame output by the first picture driving mode have the same polarity, and the color pixels on the frame output by the second picture driving mode have different polarities. The brightness of the display screen is compensated by canceling the brightness corresponding to the two color pixels with the same color and different polarities on the frame output by the second picture driving mode.

2. The brightness compensation method of claim 1, wherein, Before the step of changing the first picture driving mode to the second picture driving mode, the following step is further included: When the abnormal display screen is detected on the display screen, the proportion of the abnormal display screen on the display screen is obtained.

3. The brightness compensation method of claim 1, wherein, The color pixels comprise a first pixel, a second pixel and a third pixel, the polarity of the color pixels comprises a positive polarity and a negative polarity, and the step of canceling the brightness corresponding to the two color pixels with the same color and different polarities on the frame output by the second picture driving mode comprises the following steps: The first brightness corresponding to the first pixel with a positive polarity and the second brightness corresponding to the first pixel with a negative polarity on the frame output by the second picture driving mode are canceled in pairs, the third brightness corresponding to the second pixel with a positive polarity and the fourth brightness corresponding to the second pixel with a negative polarity on the frame output by the second picture driving mode are canceled in pairs, and the fifth brightness corresponding to the third pixel with a positive polarity and the sixth brightness corresponding to the third pixel with a negative polarity on the frame output by the second picture driving mode are canceled in pairs, wherein the color pixels corresponding to the two brightnesses canceled in pairs are located on the same pixel row of the frame.

4. The brightness compensation method of claim 2, wherein, After the step of obtaining the proportion of the abnormal display screen on the display screen, the following step is further included: When the proportion of the abnormal display screen on the display screen is less than the preset proportion, it is determined whether to trigger an operation of adjusting the common voltage of the display panel on which the display screen is located; If the operation of adjusting the common voltage of the display panel is triggered, a voltage variable value is received, and the common voltage of the display panel is adjusted through the voltage variable value to compensate the brightness of the display screen.

5. The brightness compensation method of claim 4, wherein, When the operation is a human triggered operation, if the operation of adjusting the common voltage of the display panel is triggered, the step of receiving the voltage variable value comprises the following step: If the operation of adjusting the common voltage of the display panel is triggered, the display panel displays a preset adjustment screen, so that the user uploads the voltage variable value according to the preset adjustment screen. When the uploaded voltage variable value is detected, the voltage variable value is received.

6. The brightness compensation method of claim 4, wherein, When the operation is an automatic triggering operation, if the operation of adjusting the common voltage of the display panel is triggered, the step of receiving the voltage variable value comprises: If the operation of adjusting the common voltage of the display panel is triggered, the current value is obtained by the sensor; After the voltage variable value is determined according to the current value and the preset current value, the voltage variable value is received.

7. The brightness compensation method of claim 1, wherein, After the step of offsetting the two luminances corresponding to the two color pixels with the same color and different polarities on the frame output based on the second picture driving mode to compensate the luminance of the display picture, the method further comprises: If it is detected that the display picture does not exist an abnormal display picture, the second picture driving mode is changed back to the first picture driving mode by the center control board.

8. A display panel, characterized by, The display panel comprises a memory, a processor and a computer processing program stored in the memory and executable on the processor, and the processor implements the luminance compensation method of any one of claims 1 to 7 when executing the computer processing program.

9. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, and the computer program is executed by the processor to implement the steps of the luminance compensation method of any one of claims 1 to 7.

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