Method for improving smear layering phenomenon, related device and storage medium

Abstract

The present disclosure provides a method for improving the phenomenon of trailing layering, related devices and storage media. The method for improving the phenomenon of trailing layering includes: predicting a predicted trailing area that will appear trailing phenomenon when a display panel displays a current frame display picture to be displayed according to a driving voltage of a previous frame display picture of the display panel and a driving voltage of the current frame display picture to be displayed, dividing the predicted trailing area into a plurality of blocks in the motion direction of a moving object in the previous frame display picture and the current frame display picture to be displayed, calculating a compensation voltage value of the driving voltage of the block of the current frame display picture to be displayed, compensating the driving voltage of the corresponding block according to the compensation voltage value, providing the driving voltage of the compensated current frame display picture to be displayed to the display panel to control the display panel to display the current frame display picture to be displayed, and weakening the layering trailing effect generated in the predicted trailing area when the display panel displays the current frame display picture.

Description

Technical Field

[0001] This disclosure belongs to the field of display technology, and specifically relates to a method, related device and storage medium for improving ghosting and layering phenomena. Background Technology

[0002] In OLED display panels, the brightness and color of pixels can be adjusted by controlling the driving voltage of the pixels. When switching between displayed images on an OLED display panel, some pixels need to switch from the color of the previous frame to a different color in the current frame, while some pixels may not be able to switch completely to the new color. This results in the image of the previous frame remaining in the current frame, creating a ghosting area when the OLED display panel displays the current frame. Furthermore, in certain special applications, such as low brightness conditions, the driving voltage of the pixels in the OLED display panel is often lower. Due to the electrical characteristics of the OLED's light-emitting materials, the response speed of the pixels in the OLED display panel is slower and insufficient. This leads to a continuous observation of a gradual darkening effect in the ghosting area when the OLED display panel displays dynamic videos or animations (i.e., ghosting layering). Related technologies suggest that reducing the display frame rate can improve the ghosting layering phenomenon; however, a lower frame rate may reduce the smoothness of the displayed image on the OLED display panel. Another approach is to use overdrive compensation for the current frame, which improves ghosting by uniformly compensating the ghosting area in the next frame. However, this cannot mitigate the visual impact of ghosting layering. Therefore, there is an urgent need for a method to improve ghosting layering without affecting the smoothness of the OLED display panel, thereby enhancing the visual quality of the display. Summary of the Invention

[0003] In view of the above problems, this disclosure provides a method, related device and storage medium for improving the ghosting layering phenomenon. The aim is to achieve different grayscale compensation for each block of the predicted ghosting area, so that when the display panel displays the current frame of the display image, the pixels in each block visually display the same target display grayscale as the corresponding pixels in the corresponding block of the current frame of the display image to be displayed on the display panel. This reduces the ghosting layering effect generated in the predicted ghosting area when the display panel displays the current frame of the display image, and improves the display quality of the display image.

[0004] According to a first aspect of this disclosure, a method for improving ghosting and layering phenomena in a display panel is provided, comprising:

[0005] Based on the driving voltage of the previous frame of the display panel and the driving voltage of the current frame of the display panel to be displayed, a predicted ghosting area is predicted to occur when the display panel displays the current frame of the display panel to be displayed. The predicted ghosting area is divided into multiple blocks in the direction of motion of the moving objects in the previous frame of the display panel and the current frame of the display panel to be displayed.

[0006] Calculate the compensation voltage value of the driving voltage of the block of the current frame display image to be displayed;

[0007] The driving voltage of the corresponding block is compensated according to the compensation voltage value;

[0008] A compensated driving voltage for the current frame of the image to be displayed is provided to the display panel to control the display panel to display the current frame of the image to be displayed.

[0009] Optionally, in the direction of motion of the moving object in the previous frame and the current frame to be displayed, the further the block is from the display position of the moving object in the previous frame, the larger the compensation voltage value corresponding to the block.

[0010] Optionally, the driving voltage of the pixels in the previous frame of the display is less than the driving voltage of the pixels at the corresponding positions in the current frame of the display to be displayed. The step of predicting the predicted motion blur region based on the driving voltage of the previous frame of the display panel and the driving voltage of the current frame of the display to be displayed includes:

[0011] Calculate the difference between the driving voltage of the pixel in the previous frame and the driving voltage of the corresponding pixel in the current frame to be displayed;

[0012] The first pixel in the current frame of the image to be displayed, whose difference is greater than a preset threshold, is identified, and the first pixel constitutes the predicted motion blur region.

[0013] Optionally, before calculating the compensation voltage value of the driving voltage of the block of the current frame display image to be displayed, the method for improving the ghosting phenomenon further includes:

[0014] By comparing the display positions of the moving object in the previous frame and the current frame to be displayed, the movement direction of the moving object in the previous frame and the current frame to be displayed is determined.

[0015] Optionally, calculating the compensation voltage value of the driving voltage of the block of the current frame display image to be displayed includes:

[0016] For pixels at the same location, calculate the difference between the driving voltage of the pixels in the block and the driving voltage of the corresponding pixels in the previous frame.

[0017] Based on the difference and the target display grayscale of the pixels in the block, an initial compensation voltage value is determined for compensating the driving voltage of the pixels in the block.

[0018] The initial compensation voltage value is multiplied by the compensation gain corresponding to the block to obtain a compensation voltage value used to compensate the driving voltage of the pixels in the block.

[0019] Specifically, in the direction of motion of the moving object in the previous frame and the current frame to be displayed, the further the block is from the display position of the moving object in the previous frame, the greater the compensation gain corresponding to the block.

[0020] Optionally, compensating the driving voltage of the corresponding block according to the compensation voltage value includes:

[0021] The compensation voltage value corresponding to the block is added to the driving voltage of the block to obtain the compensation driving voltage of the block;

[0022] Specifically, for pixels at the same location, the compensation driving voltage is greater than the driving voltage of the pixels in the block.

[0023] According to a second aspect of this disclosure, an apparatus for improving ghosting and layering phenomena in a display panel is provided, comprising:

[0024] The ghosting region prediction unit is used to predict the ghosting region that will occur when the display panel displays the current frame of the display panel, based on the driving voltage of the previous frame of the display panel and the driving voltage of the current frame of the display panel to be displayed. The predicted ghosting region is divided into multiple blocks in the direction of motion of the moving object in the previous frame of the display panel and the current frame of the display panel to be displayed.

[0025] The compensation voltage value calculation unit is used to calculate the compensation voltage value of the driving voltage of the block of the current frame display screen to be displayed;

[0026] A drive voltage compensation unit is used to compensate the drive voltage of the corresponding block according to the compensation voltage value;

[0027] A drive voltage output unit is used to provide the compensated drive voltage of the current frame display image to be displayed to the display panel, so as to control the display panel to display the current frame display image.

[0028] According to a third aspect of this disclosure, a display device is provided, comprising:

[0029] The display panel has multiple pixel units arranged in an array;

[0030] A gate driving circuit is used to generate a scan signal according to the received timing control signal, and provide the scan signal to each row of pixel units through the scan line;

[0031] The source drive circuit is used to generate the drive voltage of the previous frame of the display panel and the drive voltage of the current frame of the display panel to be displayed based on the received timing control signal, gamma voltage and input data.

[0032] The motion blur layering improvement device described above is used to receive the driving voltage of the previous frame of the display panel and the driving voltage of the current frame of the display panel to be displayed, compensate the driving voltage of multiple blocks of the predicted motion blur area of ​​the current frame of the display panel to be displayed, and send the compensated driving voltage of the current frame of the display panel to each column of pixel units via a data line to control the display panel to display the current frame of the display panel to be displayed.

[0033] According to a fourth aspect of this disclosure, an electronic device is provided, comprising: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method described above.

[0034] According to a fifth aspect of this disclosure, a storage medium is provided that stores a computer program or instructions, which, when executed by a processor, implement the steps of the method described above.

[0035] This disclosure brings the following beneficial effects:

[0036] The method for improving ghosting layering provided in this disclosure predicts a ghosting region that will cause ghosting when the display panel displays the current frame, based on the driving voltage of the previous frame displayed on the display panel and the driving voltage of the current frame to be displayed. The predicted ghosting region is divided into multiple blocks along the motion direction of the moving objects in the previous and current frames. Then, a compensation voltage value for the driving voltage of each block of the current frame is calculated. The driving voltage of the corresponding block is compensated according to the compensation voltage value to obtain the compensation driving voltage for the corresponding block of the current frame. Finally, the compensated driving voltage of the current frame is provided to the display panel, controlling the display panel to display the current frame. In this way, by setting different compensation driving voltages for the blocks in the predicted ghosting area, different grayscale compensations can be performed on each block of the current frame of the image to be displayed. This makes the pixels in each block visually consistent with the target display grayscale of the corresponding pixels in the corresponding block of the current frame of the image to be displayed when the display panel displays the current frame of the image. This reduces the ghosting layering effect generated in the predicted ghosting area when the display panel displays the current frame of the image and improves the display quality of the image.

[0037] Other features and advantages of this disclosure will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the disclosure. The objects and other advantages of this disclosure are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0038] To make the above-mentioned objects, features and advantages of this disclosure more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0039] The above and other objects, features and advantages of this disclosure will become clearer from the following description of embodiments with reference to the accompanying drawings, in which:

[0040] Figure 1 This is a schematic diagram of the structure of a display device according to an embodiment of the present disclosure;

[0041] Figure 2 This is a circuit diagram of a pixel unit provided according to an embodiment of the present disclosure;

[0042] Figure 3 This is a schematic diagram of a device for improving ghosting and layering phenomena according to an embodiment of the present disclosure;

[0043] Figure 4This is a schematic diagram of the motion direction of a moving object in two adjacent frames of a display screen and the predicted motion blur region in the current frame of the display screen to be displayed, according to an embodiment of the present disclosure.

[0044] Figure 5 This is a comparison diagram showing the visual effects of displaying the current frame according to an embodiment of the present disclosure and displaying the current frame without improving the ghosting layering phenomenon;

[0045] Figure 6 This is a comparison diagram showing the visual effects presented before and after improving the ghosting layering phenomenon when displaying the current frame display screen according to an embodiment of the present disclosure;

[0046] Figure 7 A flowchart of a method for improving ghosting and layering phenomena according to an embodiment of the present disclosure;

[0047] Figure 8 A schematic diagram of the structure of an electronic device provided according to an embodiment of the present disclosure is shown. Detailed Implementation

[0048] Various embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. In the various drawings, the same elements are indicated by the same or similar reference numerals. For clarity, the various portions in the drawings are not drawn to scale.

[0049] The following terms are used in this document:

[0050] Organic light-emitting diodes (OLEDs) are current-driven light-emitting devices composed of organic light-emitting materials and a pair of electrodes. They are characterized by self-illumination, fast response, wide viewing angle, and the ability to be fabricated on flexible substrates, and are therefore increasingly used in the field of high-performance display technology.

[0051] An OLED display panel consists of pixels arranged in an array. Each pixel is composed of three sub-pixels: red (R), green (G), and blue (B), corresponding to the three primary colors in the RGB color space. By controlling the brightness of each sub-pixel, various colors can be displayed. Typically, in certain special applications, such as low-brightness conditions, OLED display panels reduce the driving voltage to decrease the luminous intensity of the OLED pixels. The displayed image or content refers to the image or content displayed on the display panel. This content can be output signals from devices such as computers, televisions, mobile phones, and tablets, and can be static images or dynamic videos or animations.

[0052] Ghosting, or motion blur, refers to the phenomenon where, when an OLED display panel is displaying dynamic video or animation (i.e., two adjacent frames of an OLED display panel show moving objects), the previous frame remains on the display panel before the current frame appears, creating a ghosting effect. When switching between frames according to the display frame rate, some pixels need to change from the color of the previous frame to a different color in the current frame. This switching requires a certain pixel response time. If the time interval between two frames is less than the pixel response time, some pixels may not be able to completely switch to the new color, resulting in the image of the previous frame remaining in the current frame, creating ghosting. Pixel response time is the time required from receiving an electrical signal from a pixel on the display panel to the pixel completely changing its brightness or color. The display frame rate is the number of times the display panel refreshes the display per second.

[0053] Ghosting occurs in certain special applications, such as low brightness conditions, where the driving voltage of pixels in OLED display panels is low. Due to the electrical characteristics of OLED's light-emitting materials, the response speed of pixels in OLED display panels is slow and insufficient. As a result, when displaying dynamic videos or animations, a gradual darkening effect (i.e., ghosting layering) can be continuously observed in the display panel.

[0054] Figure 1 A schematic diagram of a display device according to an embodiment of the present disclosure is shown. Figure 1 As shown, the display device provided in this embodiment includes: a display panel 110, a source driving circuit 120, a gate driving circuit 130, a timing control circuit 140, a ghosting layering improvement device 150, and a power chip 160. Exemplarily, this display device is, for example, an OLED display device.

[0055] In some embodiments, the display panel 110 is provided with a plurality of pixel units 111 arranged in an array. Each pixel unit 111 is connected to the ghosting layering improvement device 150 via a data line and to the gate driving circuit 130 via a scan line. In some embodiments, the timing control circuit 140 is used to provide timing control signals, gamma voltages and input data (e.g., output signals from devices such as computers, televisions, mobile phones, and tablets) to the source driving circuit 120, and to input timing control signals to the gate driving circuit 130.

[0056] In some embodiments, the source driving circuit 120 generates a driving voltage Vsrc1 for the previous frame of the display panel 110 and a driving voltage Vsrc2 for the current frame of the display panel to be displayed, based on the received timing control signal, gamma voltage, and input data, and sends the driving voltages Vsrc1 and Vsrc2 to the ghosting layering improvement device 150. The gate driving circuit 130 generates a scan signal Scan based on the received timing control signal and provides the scan signal Scan to each row of pixel units 111 through scan lines. The power supply chip 160 is connected to each pixel unit 111 to provide a power supply voltage ELVDD to each pixel unit 111.

[0057] In some embodiments, the ghosting layering improvement device 150 receives the driving voltage Vsrc1 of the previous frame of the display panel 110 and the driving voltage Vsrc2 of the current frame to be displayed. Based on the driving voltage Vsrc1 of the previous frame and the driving voltage Vsrc2 of the current frame to be displayed, it predicts a predicted ghosting area where ghosting will occur when the display panel 110 displays the current frame to be displayed. The predicted ghosting area is divided into multiple blocks in the direction of motion of the moving object in the previous frame and the current frame to be displayed. Next, the ghosting layering improvement device 150 calculates the compensation voltage value of the driving voltage of each block of the current frame to be displayed, compensates the driving voltage of the corresponding block according to the compensation voltage value, obtains the compensation driving voltage Vsrc of the corresponding block of the current frame to be displayed, and provides the compensated driving voltage Vsrc of the current frame to be displayed to the display panel 110 via a data line to control the display panel 110 to display the current frame to be displayed.

[0058] Figure 2 A circuit diagram of pixel unit 111 is shown. (Refer to...) Figure 2The pixel unit 111 includes an OLED, a switching transistor T1, a driving transistor T2, and a storage capacitor Cs. The switching transistor T1 is controlled by the scan signal Scan. The storage capacitor Cs receives the compensated driving voltage Vsrc of the current frame to be displayed via the switching transistor T1 and stores electrical energy to maintain the gate-source voltage Vgs of the driving transistor T2 at (ELVDD-Vsrc). The driving transistor T2 provides driving current to the OLED based on the gate-source voltage Vgs during the off-state of the switching transistor T1. The larger the gate-source voltage Vgs, the larger the driving current received by the OLED, and the greater the brightness of the OLED. Furthermore, the gate-source voltage Vgs differs depending on the setting of the compensation driving voltage Vsrc. Therefore, by setting the compensation driving voltage Vsrc, grayscale compensation can be performed on the OLEDs in the corresponding blocks of the current frame of the display image to be displayed, so that when the display panel 110 displays the current frame of the display image, the pixels in each block visually display the same grayscale as the corresponding pixels in the corresponding blocks of the current frame of the display image to be displayed on the display panel 110. This reduces the ghosting layering effect generated in the predicted ghosting area when the display panel 110 displays the current frame of the display image, and improves the display quality of the display image.

[0059] Since the specific process of improving the ghosting and layering phenomenon will be described in detail below, it will not be repeated here.

[0060] Figure 3 A schematic diagram of a device for improving ghosting and layering phenomena according to an embodiment of the present disclosure is shown. Figure 3 As shown, the motion blur layering improvement device 150 provided in this embodiment includes a drive voltage acquisition unit 310, a motion blur region prediction unit 320, a compensation voltage value calculation unit 330, a drive voltage compensation unit 340, and a drive voltage output unit 350.

[0061] In some embodiments, the driving voltage acquisition unit 310 acquires the driving voltage Vsrc1 of the previous frame of the display panel 110 and the driving voltage Vsrc2 of the current frame of the display panel to be displayed. It is understood that in a video or animation, multiple consecutive still images (frames) are played at a certain speed per second, thus forming a continuous dynamic image. The previous frame refers to the still image at the previous time point, while the current frame refers to the still image at the current time point. When the video or animation is played, each frame is displayed on the display panel 110 for a period of time and then replaced by the next frame. The previous frame is cleared before the current frame appears to make room for the new image. Thus, by continuously refreshing the display, the viewer can experience a continuous dynamic effect. It should be noted that a pixel is the smallest unit of a display image. In a display image, pixels are usually arranged in a two-dimensional grid, and each pixel has a specific position and grayscale value. The driving voltage of the display image refers to the grayscale voltage value corresponding to the grayscale value of the pixels in the display image when the display panel 110 displays a frame. It should be noted that grayscale refers to the gray level of pixels in an image or display device. Grayscale level represents the brightness value of each pixel in an image, usually represented by integers from 0 to 255, where 0 represents black and 255 represents white.

[0062] In some embodiments, the ghosting region prediction unit 320 predicts the ghosting region where ghosting will occur when the display panel 110 displays the current frame of the image to be displayed, based on the driving voltage Vsrc1 of the previous frame and the driving voltage Vsrc2 of the current frame. In some embodiments, for pixels in the predicted ghosting region, the driving voltage Vsrc1 of the pixels in the previous frame is less than the driving voltage Vsrc2 of the corresponding pixel in the current frame. In some embodiments, the ghosting region prediction unit 320 includes a calculation module 321 and a first pixel selection module 322. The calculation module 321 can calculate the difference between the driving voltage Vsrc1 of the pixels in the previous frame and the driving voltage Vsrc2 of the corresponding pixel in the current frame. The first pixel selection module 322 can select a first pixel in the current frame whose difference is greater than a preset threshold, and the first pixel constitutes the predicted ghosting region. It should be noted that the preset threshold can be set according to the characteristics of the display panel 110. If, for a pixel at the same location, the difference between the driving voltage Vsrc1 of a pixel in the previous frame of the display panel 110 and the driving voltage Vsrc2 of the corresponding pixel in the current frame of the display panel 110 is greater than a threshold value, it indicates that when the display panel 110 displays dynamic video or animation (i.e., there is a moving object in two adjacent frames of the display panel 110), the previous frame of the display panel 110 may still remain on the display panel 110 before the current frame of the display panel appears when the display panel 110 switches between frames. Therefore, the first pixel selection module 322 predicts the predicted motion blur region that may occur when the display panel 110 displays the current frame of the display panel 110 by selecting the first pixel in the current frame of the display panel 110 whose difference is greater than the preset threshold value.

[0063] In some embodiments, the compensation voltage calculation unit 330 divides the predicted motion blur region of the current frame of the display to be displayed into multiple blocks according to the motion direction of the moving object in the previous frame and the current frame to be displayed, and calculates the compensation voltage value of the driving voltage of each block of the current frame. In some embodiments, the compensation voltage calculation unit 330 includes a motion direction determination module 331, a block segmentation module 332, and a compensation voltage calculation module 333. The motion direction determination module 331 can determine the motion direction of the moving object based on the display position of the moving object in the previous frame and the current frame in the preceding and following frames. Figure 4 This diagram illustrates the motion direction of a moving object in two adjacent display frames according to an embodiment of the present disclosure and the predicted motion blur region in the current display frame to be displayed. Figure 4As shown, a moving object 410 exists in both the previous frame display P1 and the current frame display P2. The motion direction determination module 331 determines the motion direction of the moving object 410 as downward along the y-axis based on its display position in both the previous frame display P1 and the current frame display P2. The first pixel selection module 322 predicts a predicted ghosting area A that may occur when the display panel 110 displays the current frame display P2 by selecting the first pixel in the current frame display P2.

[0064] In some embodiments, the block segmentation module 332 divides the predicted motion blur region in the current frame of the display to be displayed into multiple blocks in the direction of motion of the moving object in the previous frame and the current frame of the display to be displayed. In some embodiments, the compensation voltage value calculation module 333 calculates the compensation voltage value of the driving voltage of each block of the current frame of the display to be displayed. Figure 5 This is a comparison diagram showing the visual effects of displaying the current frame according to an embodiment of this disclosure and displaying the current frame without improving the ghosting layering phenomenon. For example... Figure 5 As shown, compared to the current frame display P2 on the display panel 110, when the ghosting layering phenomenon is not improved, the visual effect P3 presented by the display panel 110 when displaying the current frame display P2 results in a grayscale layering phenomenon in the ghosting area B corresponding to the predicted ghosting area A. Furthermore, in the direction of movement of the moving object 410 (i.e., downward along the y-axis), the further away from the display position of the moving object 410 in the previous frame display P1, the darker the ghosting area B becomes. It is easy to understand that... Figure 5The visual effect P3 shown in the diagram, where the display panel 110 displays the current frame P2 without improving the ghosting layering phenomenon, is caused by the visually continuous ghosting layering effect when the display panel displays multiple consecutive frames. The ghosting region B can be divided into 6 blocks 412 along the movement direction of the moving object 410 (i.e., downward along the y-axis). The further away from the display position of the moving object 410 in the previous frame P1 along the movement direction, the darker the block 412 becomes. Therefore, to improve the ghosting layering phenomenon in the ghosting region B of the visual effect P3 presented when the display panel 110 displays the current frame P2, the block segmentation module 332 divides the predicted ghosting region A in the current frame P2 into 6 blocks 411 along the movement direction of the moving object 410 in the previous frame P1 and the current frame P2 to be displayed (i.e., downward along the y-axis). The compensation voltage calculation module 333 calculates the compensation voltage values ​​for the driving voltage of each block of the current frame display image P2 to be displayed. It should be noted that the segmentation method of the predicted motion blur region blocks in the current frame display image to be displayed can be determined based on the visual effect and implementation method of the current frame display image on the display panel. For example, the predicted motion blur region can be divided into a fixed number of blocks according to the movement direction of the moving object. The number of blocks is greater than or equal to 1, and the number of pixel units included in each block is greater than or equal to 1.

[0065] In some embodiments, the grayscale value of the pixels in the predicted motion blur region of the current frame to be displayed is greater than the grayscale value of the corresponding pixel in the previous frame; that is, the brightness value of the pixels in the predicted motion blur region of the current frame to be displayed is increased compared to the brightness value of the corresponding pixel in the previous frame. In one example, the grayscale value of the pixels in the predicted motion blur region is 255, and the grayscale value of the corresponding pixel in the previous frame is 0. In some embodiments, the compensation voltage calculation module 333 calculates the compensation voltage value for each block of the predicted motion blur region of the current frame to be displayed, used to compensate the driving voltage of the pixels in the corresponding block. It should be noted that related technical means well known to those skilled in the art can also be used to calculate the compensation voltage value. In some embodiments, the compensation voltage calculation module 333 calculates the difference between the driving voltage Vsrc2 of each block of the predicted motion blur region of the current frame to be displayed and the driving voltage Vsrc1 of the corresponding pixel in the previous frame, for pixels at the same position. Based on the difference and the target display grayscale of the corresponding block of pixels, an initial compensation voltage value is determined to compensate the driving voltage of the corresponding block of pixels. Then, the compensation voltage calculation module 333 multiplies the initial compensation voltage value by the compensation gain corresponding to the corresponding block to obtain the compensation voltage value used to compensate the driving voltage of the corresponding block of pixels. It should be noted that, in the direction of motion of the moving object in the previous frame and the current frame to be displayed, the further the block is from the display position of the moving object in the previous frame, the greater the compensation gain corresponding to the block. It should also be noted that related techniques well known to those skilled in the art can be used to calculate the initial compensation voltage value.

[0066] In some embodiments, the driving voltage compensation unit 340 compensates the driving voltage of the corresponding block of the predicted motion blur region of the current frame of the display image to be displayed based on the compensation voltage value. In some embodiments, the driving voltage compensation unit 340 adds the compensation voltage value corresponding to each block of the predicted motion blur region of the current frame of the display image to the driving voltage of the corresponding block to obtain the compensation driving voltage Vsrc of the corresponding block. It is easy to understand that for pixels at the same position, the compensation driving voltage Vsrc is greater than the driving voltage Vsrc2 of the pixel of the corresponding block of the predicted motion blur region of the current frame of the display image to be displayed. It should be noted that in the direction of motion of the moving object in the previous frame of the display image and the current frame of the display image to be displayed, the farther the block is from the display position of the moving object in the previous frame of the display image, the larger the compensation voltage value corresponding to the block. In this way, after processing by the method for improving the ghosting layering phenomenon of the present disclosure embodiment, the blocks in the current frame display screen displayed by the display panel 110 that correspond to the positions of each block in the predicted ghosting area will visually display the same target display grayscale as the corresponding blocks in the predicted ghosting area in the current frame display screen to be displayed, thereby improving the ghosting layering phenomenon in the current frame display screen displayed by the display panel 110.

[0067] In some embodiments, the driving voltage output unit 350 provides the display panel 110 with a compensated driving voltage Vsrc for the current frame display image to be displayed, thereby controlling the display panel 110 to display the current frame display image to be displayed. In some embodiments, the compensated driving voltage Vsrc for multiple blocks of the predicted motion blur region of the current frame display image to be displayed is provided via a data line to the pixel units 111 in the display panel 110 corresponding to the positions of the multiple blocks of the predicted motion blur region, and the driving voltage Vsrc for the region outside the multiple blocks of the predicted motion blur region of the current frame display image to be displayed is provided via a data line to the pixel units 111 in the display panel 110 corresponding to the positions of the regions outside the multiple blocks of the predicted motion blur region, thereby controlling the display panel to display the current frame display image to be displayed. Figure 6 This is a comparison diagram showing the visual effects of displaying the current frame before and after improving the ghosting layering phenomenon according to an embodiment of this disclosure. Figure 6 As shown, without improving the ghosting layering phenomenon, ghosting layering exists in six blocks 412 of the ghosting region B corresponding to the predicted ghosting region A in the visual effect P3 presented when the display panel 110 displays the current frame display image P2. After processing by the ghosting layering improvement method of this embodiment, the ghosting layering phenomenon in the visual effect P4 presented when the display panel 110 displays the current frame display image P2 is significantly improved.

[0068] Figure 7A flowchart is shown for a method for improving ghosting and layering phenomena according to an embodiment of the present disclosure. Figure 7 As shown, methods to improve the ghosting / layering phenomenon include:

[0069] In step S710, based on the driving voltage of the previous frame of the display panel and the driving voltage of the current frame of the display panel to be displayed, a predicted ghosting area is predicted to occur when the display panel displays the current frame of the display panel to be displayed. The predicted ghosting area is divided into multiple blocks in the direction of motion of the moving objects in the previous frame of the display panel and the current frame of the display panel to be displayed.

[0070] In step S720, the compensation voltage value of the driving voltage of the block of the current frame display screen to be displayed is calculated.

[0071] In step S730, the driving voltage of the corresponding block is compensated according to the compensation voltage value.

[0072] In step S740, a compensated driving voltage for the current frame display image to be displayed is provided to the display panel to control the display panel to display the current frame display image to be displayed.

[0073] Since the process of improving the ghosting layering phenomenon has been described in detail in the device embodiment above, it will not be repeated here.

[0074] This disclosure also provides an electronic device, such as... Figure 8 As shown, it includes a memory 820, a processor 810, and a program stored on the memory 820 and executable on the processor 810. When the program is executed by the processor 810, it can implement the various processes in the above-described methods for improving the ghosting layering phenomenon and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0075] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor. Therefore, this disclosure also provides a storage medium storing a computer program or instructions, which, when executed by a processor, can implement the various processes in the embodiments of the above-described methods for improving ghosting layering.

[0076] Since the instructions stored in the storage medium can execute the steps in the method for improving the ghosting layering phenomenon provided in the embodiments of this disclosure, the beneficial effects of the method for improving the ghosting layering phenomenon provided in the embodiments of this disclosure can be achieved, as detailed in the preceding embodiments, and will not be repeated here. The specific implementation of each of the above operations can be found in the preceding embodiments, and will not be repeated here.

[0077] In summary, according to the embodiments of this disclosure, based on the driving voltage of the previous frame of the display panel and the driving voltage of the current frame of the display panel to be displayed, a predicted ghosting area is predicted to occur when the display panel displays the current frame of the display panel to be displayed. In the direction of motion of the moving object in the previous frame of the display panel and the current frame of the display panel to be displayed, the predicted ghosting area is divided into multiple blocks. Then, the compensation voltage value of the driving voltage of each block of the current frame of the display panel to be displayed is calculated. The driving voltage of the corresponding block is compensated according to the compensation voltage value to obtain the compensation driving voltage of the corresponding block of the current frame of the display panel to be displayed. Then, the compensated driving voltage of the current frame of the display panel to be displayed is provided to the display panel to control the display panel to display the current frame of the display panel to be displayed. In this way, by setting different compensation driving voltages for the blocks in the predicted ghosting area, different grayscale compensations can be performed on each block of the current frame of the image to be displayed. This reduces the pixel response time of the pixels in each block when switching the display images, so that when the display panel displays the current frame of the image, the pixels in each block visually display the same target display grayscale as the corresponding pixels in the corresponding block of the current frame of the image to be displayed on the display panel. This reduces the ghosting layering effect generated in the predicted ghosting area when the display panel displays the current frame of the image, and improves the display quality of the image.

[0078] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating this disclosure and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of this disclosure.

Claims

1. A method for improving ghosting and layering phenomena in display panels, comprising: Based on the driving voltage of the previous frame of the display panel and the driving voltage of the current frame of the display panel to be displayed, a predicted ghosting area is predicted to occur when the display panel displays the current frame of the display panel to be displayed. The predicted ghosting area is divided into multiple blocks in the direction of motion of the moving objects in the previous frame of the display panel and the current frame of the display panel to be displayed. Calculate the compensation voltage value of the driving voltage of the block of the current frame display image to be displayed; The driving voltage of the corresponding block is compensated according to the compensation voltage value; A compensated driving voltage for the current frame of the image to be displayed is provided to the display panel to control the display panel to display the current frame of the image to be displayed. Specifically, in the direction of motion of the moving object in the previous frame and the current frame to be displayed, the further the block is from the display position of the moving object in the previous frame, the larger the compensation voltage value corresponding to the block.

2. The method for improving ghosting and layering phenomena according to claim 1, wherein, The driving voltage of the pixels in the previous frame of the display is less than the driving voltage of the corresponding pixels in the current frame of the display to be displayed. The prediction of a motion blur region, based on the driving voltage of the previous frame of the display panel and the driving voltage of the current frame of the display to be displayed, includes: Calculate the difference between the driving voltage of the pixel in the previous frame and the driving voltage of the corresponding pixel in the current frame to be displayed; The first pixel in the current frame of the image to be displayed, whose difference is greater than a preset threshold, is identified, and the first pixel constitutes the predicted motion blur region.

3. The method for improving ghosting and layering phenomena according to claim 1, wherein, Before calculating the compensation voltage value of the driving voltage of the block of the current frame display image to be displayed, the method for improving the ghosting layering phenomenon further includes: By comparing the display positions of the moving object in the previous frame and the current frame to be displayed, the movement direction of the moving object in the previous frame and the current frame to be displayed is determined.

4. The method for improving ghosting and layering phenomena according to claim 1, wherein, The calculation of the compensation voltage value of the driving voltage of the block of the current frame display image to be displayed includes: For pixels at the same location, calculate the difference between the driving voltage of the pixels in the block and the driving voltage of the corresponding pixels in the previous frame. Based on the difference and the target display grayscale of the pixels in the block, an initial compensation voltage value is determined for compensating the driving voltage of the pixels in the block. The initial compensation voltage value is multiplied by the compensation gain corresponding to the block to obtain a compensation voltage value used to compensate the driving voltage of the pixels in the block. Specifically, in the direction of motion of the moving object in the previous frame and the current frame to be displayed, the further the block is from the display position of the moving object in the previous frame, the greater the compensation gain corresponding to the block.

5. The method for improving ghosting and layering phenomena according to claim 1, wherein, The step of compensating the driving voltage of the corresponding block according to the compensation voltage value includes: The compensation voltage value corresponding to the block is added to the driving voltage of the block to obtain the compensation driving voltage of the block; Specifically, for pixels at the same location, the compensation driving voltage is greater than the driving voltage of the pixels in the block.

6. A device for improving ghosting and layering phenomena in display panels, comprising: The ghosting region prediction unit is used to predict the ghosting region that will occur when the display panel displays the current frame of the display panel, based on the driving voltage of the previous frame of the display panel and the driving voltage of the current frame of the display panel to be displayed. The predicted ghosting region is divided into multiple blocks in the direction of motion of the moving object in the previous frame of the display panel and the current frame of the display panel to be displayed. The compensation voltage value calculation unit is used to calculate the compensation voltage value of the driving voltage of the block of the current frame display screen to be displayed; A drive voltage compensation unit is used to compensate the drive voltage of the corresponding block according to the compensation voltage value; A driving voltage output unit is used to provide the compensated driving voltage of the current frame display image to be displayed to the display panel, so as to control the display panel to display the current frame display image to be displayed; Specifically, in the direction of motion of the moving object in the previous frame and the current frame to be displayed, the further the block is from the display position of the moving object in the previous frame, the larger the compensation voltage value corresponding to the block.

7. A display device, comprising: The display panel has multiple pixel units arranged in an array; A gate driving circuit is used to generate a scan signal according to the received timing control signal, and provide the scan signal to each row of pixel units through the scan line; The source drive circuit is used to generate the drive voltage of the previous frame of the display panel and the drive voltage of the current frame of the display panel to be displayed based on the received timing control signal, gamma voltage and input data. The motion blur layering improvement device as described in claim 6 is configured to receive the driving voltage of the previous frame of the display panel and the driving voltage of the current frame of the display panel to be displayed, compensate the driving voltage of multiple blocks of the predicted motion blur area of ​​the current frame of the display panel to be displayed, and send the compensated driving voltage of the current frame of the display panel to each column of pixel units via a data line to control the display panel to display the current frame of the display panel to be displayed.

8. An electronic device, comprising: A processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method as described in any one of claims 1 to 5.

9. A storage medium storing a computer program or instructions that, when executed by a processor, implement the steps of the method as described in any one of claims 1 to 5.

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