Display method of spliced screen and display device

Abstract

The embodiment of the application discloses a display method and display device of a spliced screen. The spliced screen comprises at least two display panels spliced together. The display panel comprises a display area, and the display area comprises a middle area and an edge area arranged circumferentially around the middle area. The display method of the spliced screen of the application can be applied even when the distance between the display areas of the display panels is too large or other light exists between the adjacent display panels, thereby increasing the use scenarios and solving the technical problem that the use scenarios of the display method for improving the picture difference of different display panels of the spliced screen are less in the prior art.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display method and display device for a video wall. Background Technology

[0002] With the increasing demand for large-screen displays, video walls, which combine multiple display panels, have emerged. Due to issues such as manufacturing processes and parameter settings, different display panels may exhibit variations in their display states, resulting in discrepancies in the display quality of the spliced ​​panels. To improve these differences, optical compensation technology is introduced. This involves optically adjusting the display panels after positioning the LEDs, thereby mitigating these display differences and enhancing the overall image quality of the video wall.

[0003] In the process of researching and practicing existing technologies, the inventors of this application discovered that the arrangement of display panels in a video wall is subject to stringent regulations during optical compensation. Not only must the distance between LED strips of adjacent display panels be avoided to reduce the possibility of errors in the lamp positioning process, but other lights must also be prevented from existing between the LED strips of adjacent display panels, otherwise interference will occur. Therefore, existing solutions for improving the display differences between different display panels in a video wall have many limitations and are applicable in limited scenarios. Summary of the Invention

[0004] This application provides a display method and display device for a video wall, in order to solve the technical problem that there are few application scenarios for the display method of improving the image difference of different display panels in the video wall.

[0005] This application provides a display method for a video wall, including at least two display panels arranged in a spliced ​​configuration. Each display panel includes a display area, which comprises a central area and an edge area circumferentially surrounding the central area. The display method for the video wall includes:

[0006] Light up the splicing screen, and set at least two preliminary display positioning areas according to the display range. Each preliminary display positioning area includes the display area of ​​the display panel, and the boundary of the preliminary display positioning area is located outside the boundary of the display area.

[0007] Light up the edge area, and within each of the initial display positioning areas, obtain the coordinates of the outer boundary of each edge area;

[0008] Based on the boundary coordinates of the edge region, a set distance is extended outward to form a background removal region, the boundary of the background removal region being located within the boundary of the initial display positioning area;

[0009] An image of the splicing screen is acquired using a photosensitive device, and at least the outer periphery of the image corresponding to the background removal area is cropped.

[0010] The real-time display parameters of the splicing screen are obtained based on the cropped image;

[0011] If there is a deviation between the real-time display parameters and the corresponding target display parameters, the real-time display parameters of the splicing screen are adjusted according to the deviation value so that the real-time display parameters of the splicing screen are the same as the target display parameters.

[0012] Optionally, in some embodiments of this application, the steps of illuminating the splicing screen, acquiring an image of the splicing screen using a photosensitive device, and at least cropping the outer periphery of the image corresponding to the background removal area include:

[0013] The splicing screen is turned on, and an image of the splicing screen is acquired using a photosensitive device. The portion of the image corresponding to the background removal area and the outer periphery of the background removal area are then cropped.

[0014] Optionally, in some embodiments of this application, pixels are provided in the display area;

[0015] Before the step of obtaining the real-time display parameters of the splicing screen based on the cropped image, the display method of the splicing screen further includes:

[0016] Each of the display panels is lit up one by one, and the pixels of the lit display panels are acquired one by one using a photosensitive device to obtain the coordinates of the pixels of each display panel.

[0017] The step of obtaining the real-time display parameters of the splicing screen based on the cropped image includes:

[0018] The real-time display parameters of each pixel of the display panel are obtained based on the cropped image;

[0019] The step of comparing the real-time display parameters with the corresponding target display parameters, and adjusting the real-time display parameters of the splicing screen according to the deviation value if there is a deviation, so that the real-time display parameters of the splicing screen are the same as the target display parameters, includes:

[0020] The real-time display parameters of the pixel are compared with the corresponding target display parameters. If there is a deviation between the real-time display parameters of the pixel and the corresponding target display parameters, the real-time display parameters of the pixel are adjusted according to the deviation value so that the real-time display parameters of the pixel are the same as the target display parameters.

[0021] Optionally, in some embodiments of this application, the step of lighting up each of the display panels one by one and using the photosensitive device to acquire images of the lit display panels one by one to obtain the pixel coordinates of each display panel includes:

[0022] Light up the first pixel of the display panel, and using the first pixel as the starting point, light up other pixels one by one, and obtain the coordinates of multiple pixels;

[0023] Repeat the above steps to obtain the coordinates of multiple pixels of the other display panels.

[0024] Optionally, in some embodiments of this application, the target display parameters include a first target display parameter and a second target display parameter; the first target display parameter corresponds to a display panel, and the second target display parameter corresponds to the entire splicing screen;

[0025] The step of comparing the real-time display parameters of the pixel with the corresponding target display parameters, and adjusting the real-time display parameters of the pixel according to the deviation value if there is a deviation value, so that the real-time display parameters of the pixel are the same as the target display parameters, includes:

[0026] In each of the display panels, the real-time display parameters of the pixel are compared with the corresponding first target display parameters. If there is a deviation between the real-time display parameters of the pixel and the corresponding first target display parameters, the real-time display parameters of the pixel are adjusted to be the same as the first target display parameters.

[0027] Throughout the entire splicing screen, the real-time display parameters of the pixels are continuously adjusted until they are the same as the second target display parameters.

[0028] Optionally, in some embodiments of this application, the second target display parameter is the minimum value of the first target display parameters of the plurality of display panels.

[0029] Optionally, in some embodiments of this application, the second target display parameter is the average value of the first target display parameters of the plurality of display panels.

[0030] Optionally, in some embodiments of this application, the second target display parameter is the maximum value of the first target display parameters of the plurality of display panels.

[0031] Optionally, in some embodiments of this application, the set distance is a distance of m pixels, where m is a positive integer, and the distance between the outer boundary and the inner boundary of the edge region is a distance of n pixels, where 1≤n≤m and is a positive integer.

[0032] Correspondingly, this application also provides a display device, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor. The processor executes the computer program to implement the steps in the brightness adjustment method described above.

[0033] This application provides a display method and display device for a video wall, the video wall including at least two display panels spliced ​​together, each display panel including a display area, the display area including a central area and an edge area circumferentially surrounding the central area. The display method of the video wall includes: lighting up the video wall; setting at least two preliminary display positioning areas according to the display range, each preliminary display positioning area including the display area of ​​a display panel, the boundary of the preliminary display positioning area being outside the boundary of the display area; lighting up the edge areas; acquiring the boundary coordinates of each edge area within each preliminary display positioning area; extending outward by a predetermined distance based on the boundary coordinates of the edge areas to form a background removal area, the boundary of the background removal area being within the boundary of the preliminary display positioning areas; acquiring an image of the video wall using a photosensitive device; at least cropping the outer periphery of the image corresponding to the background removal area; acquiring real-time display parameters of the video wall based on the cropped image; comparing the real-time display parameters with the corresponding target display parameters; if there is a deviation between the real-time display parameters and the corresponding target display parameters, adjusting the real-time display parameters of the video wall according to the deviation value to make the real-time display parameters of the video wall the same as the target display parameters.

[0034] This application first selects the display area of ​​each display panel by setting a preliminary display positioning area. Then, it displays the edge area of ​​each display area to obtain the boundary coordinates of the edge area, thereby improving the positioning accuracy of the display area of ​​each display panel. Simultaneously, based on the boundary coordinates of the edge area of ​​each display panel, a distance is extended outward to determine the background-removed area of ​​each display panel. This allows the outer periphery of the background-removed area of ​​each display panel to be directly cropped after the image of the splicing screen is acquired by the photosensitive device. Then, the real-time display parameters of each display area of ​​the splicing screen are obtained based on the cropped image. Therefore, even when other lights are placed between the display areas of the different display panels of the splicing screen, the real-time display parameters of the display areas can still be accurately obtained, thereby reducing interference from external light. Thus, the splicing screen display method of this application can be applied even when the distance between the display areas of the different display panels is too large or when there are other lights between adjacent display panels, increasing the application scenarios and solving the technical problem that existing solutions have limited application scenarios for improving the display differences between different display panels of a splicing screen. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the splicing display panel provided in an embodiment of this application;

[0037] Figure 2 This is a flowchart of a method for displaying a video wall according to an embodiment of this application;

[0038] Figure 3 This is a schematic diagram of the display panel provided in an embodiment of this application;

[0039] Figure 4 This is a flowchart of a method for displaying a video wall according to another embodiment of this application;

[0040] Figure 5 This is a flowchart of a method for displaying a video wall according to another embodiment of this application;

[0041] Figure 6 This is a flowchart of steps C11 and C12 of a splicing screen display method provided in another embodiment of this application;

[0042] Figure 7 This is a schematic diagram of a display panel provided in another embodiment of this application;

[0043] Figure 8 This is a flowchart of steps B611 and B612 of the display method for a splicing screen provided in another embodiment of this application. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0045] This application provides a display method and display device for a video wall. These will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0046] Please see Figures 1 to 2 , Figure 1 This is a schematic diagram of the splicing display panel 10 of this application. Figure 2 This is a flowchart illustrating the display method of the splicing screen 100 provided in this application. The splicing screen 100 includes at least two spliced ​​display panels 10. Each display panel 10 includes a display area 11, which comprises a central area 111 and an edge area 112 circumferentially surrounding the central area 111. It should be noted that the display panel 10 includes an LED light board, the area of ​​which is equal to the display area 11 of the display panel 10. The display panel 10 also includes a transition plate 14, on which the LED light board is disposed and projected along the direction from the LED light board towards the transition plate 14. The projection surface of the transition plate 14 is larger than the projection surface of the LED light board, so that there is a spacing D between the LED light boards of adjacent display panels 10, allowing other lights to be placed between the display areas 11 of the two display panels 10.

[0047] Reference Figures 1 to 3 The display method of the splicing screen 100 includes the following steps:

[0048] Step B1: Turn on the splicing screen 100, and set at least two preliminary display positioning areas 12 according to the display range. Each preliminary display positioning area 12 includes a display area 11 of the display panel 10, and the boundary of the preliminary display positioning area 12 is located outside the boundary of the display area 11.

[0049] Step B2: Light up the edge area 112, and obtain the coordinates of the outer boundary of each edge area 112 within each of the initial display positioning areas 12;

[0050] Step B3: Based on the coordinates of the outer boundary of the edge area 112, extend outward by a set distance to form a background removal area 13, the boundary of the background removal area 13 being located within the boundary of the preliminary display positioning area 12;

[0051] Step B4: Use a photosensitive device to acquire an image of the splicing screen 100, and at least crop out the outer periphery of the image corresponding to the background removal area 13;

[0052] Step B5: Obtain the real-time display parameters of the splicing screen 100 based on the cropped image;

[0053] Step B6: Compare the real-time display parameters with the corresponding target display parameters. If there is a deviation between the real-time display parameters and the corresponding target display parameters, adjust the real-time display parameters of the splicing screen 100 according to the deviation value so that the real-time display parameters of the splicing screen 100 are the same as the target display parameters.

[0054] Understandably, this application first selects the position of the display area 11 of each display panel 10 by setting the initial display positioning area 12, and then displays the edge area 112 of each display area 11 to obtain the boundary coordinates of the edge area 112, thereby improving the positioning accuracy of the display area 11 of each display panel 10. At the same time, based on determining the boundary coordinates of the edge area 112 of each display panel 10, a distance is set outward to determine the background removal area 13 of each display panel 10. This allows the outer periphery of the background removal area 13 of each display panel 10 to be directly cropped after the image of the splicing screen 100 is acquired by the photosensitive device. Then, the real-time display parameters of each display area 11 of the splicing screen 100 are obtained based on the cropped image. Thus, even when other lights are set between the display areas 11 of each display panel 10 of the splicing screen 100, the real-time display parameters of the display area 11 can be accurately obtained, thereby reducing the interference of external light. Thus, the display method of the splicing screen 100 of this application can be applied even when the distance between the display areas 11 of each display panel 10 is too large or when there are other lights between adjacent display panels 10, thereby increasing the application scenarios and solving the technical problem that the existing solution has few application scenarios for the display method of improving the screen difference of different display panels 10 of the splicing screen 100.

[0055] Reference Figures 1 to 3 The display method of the splicing screen 100 will be explained in detail below:

[0056] Step B1: Turn on the splicing screen 100, and set at least two preliminary display positioning areas 12 according to the display range. Each preliminary display positioning area 12 includes a display area 11 of the display panel 10, and the boundary of the preliminary display positioning area 12 is located outside the boundary of the display area 11.

[0057] When the video wall 100 is lit, an image can be acquired using a photosensitive device, such as a camera. Based on the acquired image, a preliminary display positioning area 12 is set for each display panel 10, thereby initially locating the display area 11 of each display panel 10. This facilitates faster and more accurate acquisition of the coordinates of the edge area 112 of the display area 11 later. It should be noted that the preliminary display positioning area 12 of each display panel 10 has the same shape and size, ensuring consistent identification of each display panel 10's preliminary display positioning area 12 later.

[0058] Step B2: Light up the edge area 112, and obtain the boundary coordinates of each edge area 112 within each of the initial display positioning areas 12.

[0059] Specifically, by controlling the display panel 10 to illuminate only the edge area 112 of the display area 11, an image of the edge area 112 of the display area 11 is acquired using a photosensitive device, such as a camera. The boundary coordinates of the display area 11 are then located and recorded based on the acquired image. Since the edge area 112 is circumferentially positioned around the central area 111, the range of the display area 11 of each display panel 10 is determined by defining the coordinates of the boundary of the edge area 112, thus facilitating subsequent adjustments to the display effect of each display panel 10.

[0060] Step B3: Based on the coordinates of the outer boundary of the edge area 112, extend outward by a set distance to form a background removal area 13, the boundary of the background removal area 13 being located within the boundary of the preliminary display positioning area 12.

[0061] It should be noted that the display area 11 is provided with pixels. Since the outermost pixels of the display area 11 are easily damaged, during the process of lighting up the edge area 112, the pixels at the outer boundary of the edge area 112 may not be lit. Therefore, in order to ensure that the background removal area 13 is located outside the display area 11, the background removal area 13 is formed by extending outward by a set distance based on the coordinates of the boundary of the edge area 112.

[0062] Furthermore, the set distance is a distance of m pixels, where m is a positive integer, to facilitate outward expansion based on the image. Of course, this set distance can also be a fixed value such as 1mm. The set distance can be set according to specific circumstances, as long as there are no other external lights within the boundary of the background removal area 13. This allows for subsequent cropping of the acquired image on the splicing screen 100 after the background removal area 13 is formed. Further, the distance between the outer and inner boundaries of the edge area 112 is a distance of n pixels, 1≤n≤m, and is a positive integer. It can be understood that the outer and inner boundaries of the edge area 112 are formed by moving a set distance to create the outer and inner boundaries of the background removal area 13. The set distance for moving the outer and inner boundaries can be the same or different, depending on the actual situation. The edge area 112 can be formed by a single ring of pixels, meaning the distance between the outer and inner boundaries of the edge area 112 is one pixel, or the edge area 112 can be formed by multiple rings of pixels. In order to avoid the background removal region 13 being located within the edge region 112 after formation, the distance n between the outer boundary and the inner boundary of the edge region 112 will be less than the set distance m.

[0063] Step B4: Use a photosensitive device to acquire an image of the splicing screen 100, and at least crop out the outer periphery of the image corresponding to the background removal area 13.

[0064] The photosensitive device is a camera or other imaging device. When there are other lights on the outer periphery of the background removal area 13, the outer periphery of the background removal area 13 corresponding to each display panel 10 is cropped to prevent other lights on the display area 11 of the display panel 10 from interfering with subsequent adjustments to real-time display parameters.

[0065] Step B5: Obtain the real-time display parameters of the splicing screen 100 based on the cropped image. It should be noted that obtaining the real-time display parameters of the splicing screen 100 means obtaining the real-time display parameters of each display panel 10, which include at least one of brightness and chromaticity.

[0066] Step B6: Compare the real-time display parameters with the corresponding target display parameters. If there is a deviation between the real-time display parameters and the corresponding target display parameters, adjust the real-time display parameters of the splicing screen 100 according to the deviation value so that the real-time display parameters of the splicing screen 100 are the same as the target display parameters.

[0067] The real-time display parameters of each display panel 10 may differ from or be different from the target display parameters. When they differ, the real-time display parameters are adjusted to match the target display parameters based on the deviation value, making the image more uniform. For example, if the brightness data of the real-time display parameters of one display panel 10 of the video wall 100 is 50 nits, while the brightness data of the target display parameters of the video wall 100 is 100 nits, the real-time display parameters are lower than the target display parameters, and the deviation value is 50 nits. Therefore, the brightness of the display panel 10 is increased based on this deviation value to make its brightness data also 100 nits. Alternatively, if the real-time display parameters are higher than the target display parameters, the grayscale value can be increased to darken the display panel 10. This ensures that the real-time display parameters of all display panels 10 of the video wall 100 are consistent, effectively compensating for display differences between different display panels 10 and improving the overall display effect of the video wall 100.

[0068] Reference Figure 3 and Figure 4 In another embodiment, the difference between this embodiment and the above embodiment is that: Step B4: lighting up the splicing screen 100, using a photosensitive device to acquire an image of the splicing screen 100, and at least cropping the portion of the image corresponding to the outer periphery of the background removal area 13, includes step B41: lighting up the splicing screen 100, using a photosensitive device to acquire an image of the splicing screen 100, and cropping the portion of the image corresponding to the background removal area 13 and the outer periphery of the background removal area 13.

[0069] When other lights are present in both the background removal area 13 and the outer periphery of the background removal area 13, the image corresponding to the background removal area 13 and the outer periphery of the background removal area 13 is cropped to obtain the image of the display area 11 of the display panel 10. This is to prevent interference caused by other lights present in the display area 11 of the display panel 10 when adjusting the real-time display parameters.

[0070] Reference Figure 3 and Figure 5 In another embodiment, the difference between this embodiment and the above embodiment is that: pixels are provided in the display area 11; before step B5: the step of obtaining the real-time display parameters of the splicing screen 100 according to the cropped image, the display method of the splicing screen 100 further includes: step C1: lighting up each of the display panels 10 one by one, and using a photosensitive device to obtain the pixels of the lit display panels 10 one by one, so as to obtain the coordinates of the pixels of each display panel 10;

[0071] Step B5: Obtaining the real-time display parameters of the splicing screen 100 based on the cropped image includes step B51: Obtaining the real-time display parameters of each pixel of the display panel 10 based on the cropped image;

[0072] Step B6: Comparing the real-time display parameters with the corresponding target display parameters, if there is a deviation between the real-time display parameters and the corresponding target display parameters, then adjusting the real-time display parameters of the splicing screen 100 according to the deviation value to make the real-time display parameters of the splicing screen 100 the same as the target display parameters, includes step B61: Comparing the real-time display parameters of the pixels with the corresponding target display parameters, if there is a deviation between the real-time display parameters of the pixels and the corresponding target display parameters, then adjusting the real-time display parameters of the pixels according to the deviation value to make the real-time display parameters of the pixels the same as the target display parameters.

[0073] In other words, this embodiment obtains the coordinates of the pixels in the display area 11 of each display panel 10, so that after obtaining the real-time display parameters of the pixels of each display panel 10 in the cropped image, each pixel can be precisely adjusted one by one to further improve the image differences between different display panels 10. For example, if the brightness data of the real-time display parameters of one pixel of a display panel 10 is 50 nits, while the target brightness data of the pixel is 100 nits, the real-time display parameter is lower than the target display parameter, and the deviation between the two is 50 nits. Then, based on this deviation value, the pixel is precisely brightened so that its brightness data is also 100 nits. Or, if the real-time display parameter is higher than the target display parameter, the pixel can be darkened by increasing the grayscale value. This ensures that the real-time display parameters of the pixels of each display panel 10 of the splicing screen 100 are consistent, effectively compensating for the display differences between different display panels 10 and improving the overall display effect of the splicing screen 100.

[0074] Optional, in conjunction with reference Figure 6 and Figure 7 Step C1: The step of lighting up each of the display panels 10 one by one and acquiring images of the lit display panels 10 one by one using the photosensitive device to obtain the pixel coordinates of each display panel 10 includes:

[0075] Step C11: Light up the first pixel 113 of the display panel 10, and using the first pixel 113 as the starting point, light up other pixels one by one, and obtain the coordinates of multiple pixels;

[0076] Step C12: Repeat the above steps to obtain the coordinates of multiple pixels of the other display panels 10.

[0077] When the first pixel 113 of a display panel 10 is illuminated, an image can be acquired using a camera or other photosensitive device to locate the first pixel 113 as the initial point. Then, other pixels are illuminated one by one, and the coordinates of multiple pixels are acquired one by one using the photosensitive device, thereby determining the coordinates of all pixels on the display panel 10. The above steps are then repeated for another display panel 10 to obtain the coordinates of multiple pixels on the other display panels 10, thereby determining the pixel coordinates of the display areas 11 of all display panels 10 in the video wall 100. This allows for accurate adjustment of the real-time display parameters of the pixels. It should be noted that the first pixel 113 can be located at a corner of the display area 11.

[0078] Optional, refer to Figure 8 The target display parameters include a first target display parameter and a second target display parameter; the first target display parameter corresponds to a display panel 10, and the second target display parameter corresponds to the entire splicing screen 100;

[0079] Step B61: Comparing the real-time display parameters of the pixel with the corresponding target display parameters, and if there is a deviation between the real-time display parameters of the pixel and the corresponding target display parameters, adjusting the real-time display parameters of the pixel according to the deviation value to make the real-time display parameters of the pixel the same as the target display parameters, includes:

[0080] Step B611: In each of the display panels 10, compare the real-time display parameters of the pixel with the corresponding first target display parameters. If there is a deviation between the real-time display parameters of the pixel and the corresponding first target display parameters, adjust the real-time display parameters of the pixel to be the same as the first target display parameters.

[0081] Step B612: Throughout the entire splicing screen 100, continue to adjust the real-time display parameters of the pixels until they are the same as the second target display parameters.

[0082] It should be noted that the target display parameters for the optimal display effect of pixels on different display panels 10 are different. The first target display parameter is the display parameter for the optimal display effect of pixels on display panel 10. Therefore, when adjusting, the pixels of display panel 10 can be adjusted to be the same as the first target display parameter. Then, in order to keep the real-time display parameters of pixels on each display panel 10 consistent, a second target display parameter is set as the benchmark. The second target display parameter is the display parameter for the overall optimal display effect of the splicing screen 100. This makes the real-time display parameters of pixels on each display panel 10 the same as the second target display parameter, effectively compensating for the display differences between different display panels 10 and improving the overall display effect of the splicing screen 100.

[0083] Furthermore, the second target display parameter is the minimum value of the first target display parameters of the plurality of display panels 10. Thus, when the real-time display parameters of the pixels of the display panel 10 deviate from the second target display parameter, the real-time display parameters are all higher than the second target display parameter. In this way, the pixel can be darkened by increasing the grayscale value. This method has little impact on the display effect, thereby ensuring the overall display effect of the splicing screen 100.

[0084] In another embodiment, the second target display parameter is the average of the first target display parameters of the plurality of display panels 10. Thus, when the real-time display parameters of the pixels of the display panel 10 deviate from the second target display parameter, the adjustment range of each pixel is kept small, thereby reducing the impact on the display effect.

[0085] In another embodiment, the second target display parameter is the maximum value of the first target display parameters of the plurality of display panels 10. Thus, when the real-time display parameters of a pixel of the display panel 10 deviate from the second target display parameter, the pixel can be brightened by reducing its grayscale value, thereby improving the overall display brightness of the splicing screen 100.

[0086] This application embodiment also provides a display device, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor. The processor executes the computer program to implement the steps in the display method of the above-described splicing screen 100.

[0087] Specifically, in the embodiments of this application, the processor can be a central processing unit (CPU), but it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), or field-programmable gate arrays (FPGAs).

[0088] A general-purpose processor (FPGA) is a programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0089] It should also be understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous DRAM (DDRSDRAM), enhanced synchronous DRAM (ESDRAM), synchronous linked DRAM (SLDRAM), and direct rambus RAM (DRRAM).

[0090] The above provides a detailed description of a splicing screen display method and display device provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display method of a tiled screen, characterized by, The display method of the tiled screen comprises the following steps: lighting up the tiled screen, setting at least two preliminary display positioning areas according to the display range, each of the preliminary display positioning areas comprising a display area of one of the display panels, and the boundary of the preliminary display positioning area being located outside the boundary of the display area; lighting up the edge area, and obtaining the boundary coordinates of each of the edge areas in each of the preliminary display positioning areas; expanding outwardly based on the boundary coordinates of the edge area by a set distance to form a background-removed area, the boundary of the background-removed area being located inside the boundary of the preliminary display positioning area; obtaining an image of the tiled screen by using a photosensitive device, and at least cutting off the peripheral part of the image corresponding to the background-removed area; obtaining real-time display parameters of the tiled screen according to the cut image; comparing the real-time display parameters with corresponding target display parameters, and if there is a deviation between the real-time display parameters and the corresponding target display parameters, adjusting the real-time display parameters of the tiled screen according to the deviation so as to make the real-time display parameters of the tiled screen the same as the target display parameters.

2. The display method of the tiled screen according to claim 1, wherein, The step of lighting up the tiled screen, obtaining an image of the tiled screen by using a photosensitive device, and at least cutting off the peripheral part of the image corresponding to the background-removed area comprises the following steps: lighting up the tiled screen, obtaining an image of the tiled screen by using a photosensitive device, and cutting off the part of the image corresponding to the background-removed area and the peripheral part of the background-removed area.

3. The display method of the tiled screen according to claim 1, wherein, The display area is provided with pixels. Before the step of obtaining real-time display parameters of the tiled screen according to the cut image, the display method of the tiled screen further comprises the following steps: lighting up each of the display panels one by one, and obtaining the pixels of the display panels that have been lighted up one by one by using a photosensitive device, so as to obtain the coordinates of the pixels of each of the display panels; The step of obtaining real-time display parameters of the tiled screen according to the cut image comprises the following steps: obtaining real-time display parameters of the pixels of each of the display panels according to the cut image; The step of comparing the real-time display parameters with corresponding target display parameters, and if there is a deviation between the real-time display parameters and the corresponding target display parameters, adjusting the real-time display parameters of the pixels according to the deviation so as to make the real-time display parameters of the pixels the same as the target display parameters comprises the following steps: comparing the real-time display parameters of the pixels with corresponding target display parameters, and if there is a deviation between the real-time display parameters of the pixels and the corresponding target display parameters, adjusting the real-time display parameters of the pixels according to the deviation so as to make the real-time display parameters of the pixels the same as the target display parameters.

4. The display method of the tiled screen according to claim 3, wherein The step of lighting up each of the display panels one by one, and obtaining the image of the display panels that have been lighted up one by one by using the photosensitive device, so as to obtain the pixel coordinates of each of the display panels comprises the following steps: lighting a first pixel of the display panel, and taking the first pixel as the initial point, lighting other pixels one by one, and obtaining coordinates of the pixels; repeating the above steps to obtain coordinates of the pixels of other display panels.

5. The display method of the tiled screen according to claim 3, wherein The target display parameters include first target display parameters and second target display parameters; one of the first target display parameters corresponds to one of the display panels, and the second target display parameters correspond to the entire spliced screen; The step of comparing the real-time display parameters of the pixels with the corresponding target display parameters, and if there is a deviation value between the real-time display parameters of the pixels and the corresponding target display parameters, adjusting the real-time display parameters of the pixels according to the deviation value so that the real-time display parameters of the pixels are the same as the target display parameters, includes: In each of the display panels, the real-time display parameters of the pixels are compared with the corresponding first target display parameters, and if there is a deviation value between the real-time display parameters of the pixels and the corresponding first target display parameters, the real-time display parameters of the pixels are adjusted to be the same as the first target display parameters. In the entire spliced screen, the real-time display parameters of the pixels are continuously adjusted until they are the same as the second target display parameters.

6. The display method of the tiled screen according to claim 5, wherein The second target display parameters are the minimum values of the first target display parameters of the display panels.

7. The display method of the tiled screen according to claim 5, wherein The second target display parameters are the average values of the first target display parameters of the display panels.

8. The display method of the tiled screen according to claim 5, wherein, The second target display parameters are the maximum values of the first target display parameters of the display panels.

9. The display method of the tiled screen according to claim 1, wherein, The set distance is the distance of m pixels, m is a positive integer, the distance between the outer ring boundary and the inner ring boundary of the edge area is the distance of n pixels, 1≤n≤m, and n is a positive integer.

10. A display device, characterized by comprising: The display method of the spliced screen includes a memory and a processor; the memory stores a computer program, and the processor is used to run the computer program in the memory to perform the operations in the display method of the spliced screen according to any one of claims 1 to 9.

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