A method for aligning the screen of a display module and the display module itself.

Abstract

This application provides a display module screen alignment method and a display module. The method includes: acquiring multiple target display data groups based on the features of the projected image and initial image data of the image to be displayed; controlling the transmission of overlapping data in the target display data groups to the overlapping panel pixels in the corresponding display panel, and controlling the transmission of misaligned display data in the target display data groups to the misaligned panel pixels in the corresponding display panel; each target display data group includes overlapping display data and misaligned display data, and the overlapping display data included in different target display data groups corresponds to the same image in the image to be displayed; the overlapping panel pixels in the display panel correspond to overlapping projection pixels in the projected image that overlap with other projected images, and the misaligned panel pixels in the display panel correspond to misaligned projection pixels in the projected image that are misaligned with at least one other projected image. This technical solution enables a clear image to be displayed on the target projection surface.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a screen alignment method for a display module and a display module. Background Technology

[0002] With the continuous development of display technology, various new display technologies are emerging one after another. One such technology involves breaking down an image to be displayed into different parts and displaying them through different display panels. The parts displayed by each display panel are then combined to form a complete display image. However, the technical challenge of this technology lies in controlling the precision required to combine the parts displayed by each display panel into a complete display image. Summary of the Invention

[0003] In view of this, embodiments of this application provide a screen alignment method for a display module and a display module.

[0004] In a first aspect, embodiments of this application provide a screen alignment method for a display module. The display module includes multiple display panels, each display panel corresponding one-to-one with a multiple projected image, wherein the projected image is an image projected from the display panel onto a target projection surface. The method includes:

[0005] Based on the features of the projected image and the initial image data of the image to be displayed, multiple target display data groups are obtained. The features of the projected image include the projection pixel information of each projected image overlapping and / or misaligning with other projected images. The multiple target display data groups are respectively used to transmit to the corresponding display panels. Each target display data group includes overlapping display data and misaligned display data. The overlapping display data included in different target display data groups correspond to the same image in the image to be displayed.

[0006] The overlapping display data in the target display data group is controlled to be transmitted to the overlapping panel pixels in the corresponding display panel, and the misaligned display data in the target display data group is controlled to be transmitted to the misaligned panel pixels in the corresponding display panel; the overlapping panel pixels in the display panel correspond to overlapping projection pixels in the projected image that overlap with other projected images, and the misaligned panel pixels in the display panel correspond to misaligned projection pixels in the projected image that are misaligned with at least one other projected image.

[0007] Secondly, embodiments of this application provide a display module, including multiple display panels and a control module, wherein the control module is used to execute the method provided in the first aspect.

[0008] Thirdly, embodiments of this application provide a display module, including multiple display panels, wherein the display images of the display panels are projected onto a target projection surface to present corresponding projected images;

[0009] When at least two projected images are misaligned along the first direction on the target projection surface by more than a preset value, the overlapping panel pixels in different display panels display the same image and the misaligned panel pixels in different display panels display the first grayscale image; the overlapping panel pixels in the display panel correspond to the overlapping projection pixels in the projected image that overlap with other projected images, and the misaligned panel pixels in the display panel correspond to the misaligned projection pixels in the projected image that are misaligned with at least one other projected image.

[0010] In the technical solution provided in the embodiments of this application, the overlapping panel pixels in each display panel can display the same part of the image to be displayed. Therefore, the overlapping projection pixels in each projection screen can display the same part of the image to be displayed, thus solving the problem of blurring when the image to be displayed is displayed on the target projection surface. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the 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.

[0012] Figure 1 This is a schematic diagram of a display module provided in an embodiment of this application;

[0013] Figure 2 This is a schematic diagram of a projection of an image to be displayed onto a target projection surface, related to an embodiment of this application.

[0014] Figure 3 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0015] Figure 4 This is a schematic diagram of a projection of an image to be displayed onto a target projection surface, related to an embodiment of this application.

[0016] Figure 5 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0017] Figure 6 This is a schematic diagram illustrating the relationship between initial image data and the display screen of the display panel in an embodiment of this application.

[0018] Figure 7 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0019] Figure 8This is a schematic diagram illustrating the relationship between initial image data and the display screen of the display panel in an embodiment of this application.

[0020] Figure 9 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0021] Figure 10 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0022] Figure 11 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0023] Figure 12 This is a schematic diagram of a projection of an image to be displayed onto a target projection surface, related to an embodiment of this application.

[0024] Figure 13 This is a schematic diagram illustrating the relationship between initial image data and the display screen of the display panel in an embodiment of this application.

[0025] Figure 14 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0026] Figure 15 This is a schematic diagram illustrating the relationship between initial image data and the display screen of the display panel in an embodiment of this application.

[0027] Figure 16 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0028] Figure 17 This is a schematic diagram illustrating the relationship between initial image data and the display screen of the display panel in an embodiment of this application.

[0029] Figure 18 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0030] Figure 19 This is a schematic diagram of a projection of an image to be displayed onto a target projection surface, related to an embodiment of this application.

[0031] Figure 20 This is a schematic diagram illustrating the relationship between initial image data and the display screen of the display panel in an embodiment of this application.

[0032] Figure 21 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0033] Figure 22A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0034] Figure 23 This is a schematic diagram illustrating the relationship between initial image data and the display screen of the display panel in an embodiment of this application.

[0035] Figure 24 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0036] Figure 25 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0037] Figure 26 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0038] Figure 27 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0039] Figure 28 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0040] Figure 29 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0041] Figure 30 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0042] Figure 31 A flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application;

[0043] Figure 32 This is a schematic diagram of a display module provided in an embodiment of this application. Detailed Implementation

[0044] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0045] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0046] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms "a" and "the" as used in the embodiments of this application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0047] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0048] In the description of this specification, it should be understood that the terms "substantially", "approximately", "about", "about", "generally", "largely" used in the claims and embodiments of this application refer to values ​​that can be generally agreed upon within a reasonable range of process operations or tolerances, rather than a precise value.

[0049] It should be understood that although terms such as "first," "second," etc., may be used to describe parts, leads, etc., in the embodiments of this application, these should not be limited to these terms. These terms are only used to distinguish display panels from each other. For example, without departing from the scope of the embodiments of this application, a first color display panel may also be referred to as a second color display panel, and similarly, a second color display panel may also be referred to as a first color display panel. Through meticulous and in-depth research, the applicant of this application has provided a solution to the problems existing in the prior art.

[0050] Figure 1 This is a schematic diagram of a display module provided in an embodiment of this application.

[0051] like Figure 1 As shown, the display module 01 includes multiple display panels 10, each corresponding to a different projection screen. The projection screen is the image displayed on the display panel 10 projected onto the target projection surface 20. When displaying an image, the display module 01 breaks the image down into different parts, and these different parts are displayed separately on the multiple display panels 10 included in the display module 01. In other words, the multiple display panels 10 of the display module 01 each display a different part of the image to be displayed, and all of these displayed parts are projected onto the target projection surface 20 to display the image on the target projection surface 20.

[0052] like Figure 1As shown, the display module 01 includes a red display panel 10R for displaying a red image, a green display panel 10G for displaying a green image, and a blue display panel 10B for displaying a blue image. The pixels in the red display panel 10R emit red light, the pixels in the green display panel 10G emit green light, and the pixels in the blue display panel 10B emit blue light. The image to be displayed can be achieved by controlling the brightness of pixels of different colors. That is, the image to be displayed is divided into red, blue, and green portions. The red portion is displayed using the red display panel 10R to present a red image, the green portion using the green display panel 10G to present a green image, and the blue portion using the blue display panel 10B to present a blue image. The red, green, and blue images are projected onto the target projection surface 20 to obtain a red projected image, a green projected image, and a blue projected image. The red, green, and blue projected images are mixed on the target projection surface 20 to display the image to be displayed.

[0053] The display module 01 provided in this application embodiment can be a projection module such as a 3LCD projector, or a display module 01 used to realize holographic display.

[0054] This explanation uses display module 01, which is a 3LCD projector, as an example. Please refer to [link / reference]. Figure 1 The 3LCD projector contains three independent LCD display panels 10: a red display panel 10R, a green display panel 10G, and a blue display panel 10B. Each LCD display panel 10 contains a number of pixels. White light emitted by the light source L0 is split into three colors—red (LR), green (LG), and blue (LB)—by a beam splitter L1. The red light (LR) is then directed through a reflector L2 into the red display panel 10R, the green light (LG) into the green display panel 10G, and the blue light (LB) into the blue display panel 10B. The pixels on each LCD display panel 10 can be precisely controlled, allowing different amounts of light to pass through, thereby modulating the light. The monochrome images from each LCD display panel 10 are then combined by a special prism L3 to form a full-color image. The image synthesized by the prism L3 is processed and magnified by a lens group L4, ultimately projected onto the target screen to form a viewable image.

[0055] It should be noted that the display module 01 related to the embodiments of this application may include a target projection surface 20. For example, the display module 01 related to the embodiments of this application may include a target projection surface 20 such as a screen. In addition, the display module 01 related to the embodiments of this application may not include a target projection surface 20. Users can choose a suitable target projection surface 20 according to their own needs. For example, a white wall can be used as the target projection surface 20.

[0056] It should also be noted that when the color of the image to be displayed needs to be obtained by mixing red, green, and blue light, the image data corresponding to any pixel in the image to be displayed includes the red grayscale value, green grayscale value, and blue grayscale value corresponding to that pixel. Therefore, dividing the image to be displayed into red, blue, and green parts as described above means obtaining the red grayscale value, green grayscale value, and blue grayscale value of each pixel in the image to be displayed separately. The data voltage corresponding to the red grayscale value is transmitted to the red display panel 10R, causing the red display panel 10R to display a red image; the data voltage corresponding to the green grayscale value is transmitted to the green display panel 10G, causing the green display panel 10G to display a green image; and the data voltage corresponding to the blue grayscale value is transmitted to the blue display panel 10B, causing the blue display panel 10B to display a blue image.

[0057] This can be understood as follows: a pixel in an image can include three sub-pixels of different colors: red, green, and blue. The brightness of each of these three sub-pixels determines the brightness and chromaticity of the pixel. However, since the red display panel 10R only includes units capable of emitting red light, these light-emitting units in the red display panel 10R are referred to as panel pixels. In essence, the red light emitted by a panel pixel in the red display panel 10R corresponds to the red grayscale of a pixel in the image to be displayed, that is, to the red sub-pixel of that pixel in the image. Correspondingly, the light-emitting units in the green display panel 10G and the blue display panel 10B are also referred to as panel pixels.

[0058] Since the smallest controllable unit of the display image presented by the display panel 10 corresponds to the pixels included in the display panel 10, and the actual projected image is obtained by projecting the display image onto the target projection surface 20, the light-emitting unit in the projected image that corresponds to the pixel of the display panel 10 is called the projection pixel.

[0059] To ensure a clear display of the image to be displayed on the target projection surface 20, each projection screen should be projected into a preset position; otherwise, the image displayed on the target projection surface 20 will be blurry. When the position of any display panel 10 changes, the position of its corresponding projection screen on the target projection surface 20 will also change. Therefore, to ensure a clear display of the image to be displayed on the target projection surface 20, each display panel 10 should be in a preset position.

[0060] Figure 2 This is a schematic diagram of a projection of an image to be displayed onto a target projection surface, which is related to an embodiment of this application.

[0061] For example, the images corresponding to the first column of pixels of the image to be displayed are shown in the first column of pixels on the red display panel 10R, the first column of pixels on the green display panel 10G, and the first row and first column of pixels on the blue display panel 10B. Assuming the position of the red display panel 10R changes relative to a preset position, then... Figure 2 As shown, the first column of pixels in the red projection image is not aligned with the first column of pixels in the green projection image and the first column of pixels in the blue projection image on the target projection surface 20. This causes the red projection image to be unable to mix properly with the green and blue projection images to obtain the first column of the image to be displayed, resulting in a blurry image on the target projection surface 20.

[0062] It should be noted that, Figure 2 In the image IM to be displayed, multiple squares arranged in a matrix represent multiple pixels in the image IM. Similarly, in each projection screen 200 on the target projection surface 20, multiple squares arranged in a matrix represent projected pixels. Furthermore, different fill patterns on different squares indicate different grayscale values ​​for those squares.

[0063] Figure 3 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0064] Based on the above problems, this application provides a method for aligning the screen of a display module 01, such as... Figure 3 As shown, the method includes:

[0065] S1: Based on the characteristics of the projected image and the initial image data of the image to be displayed, obtain multiple target display data groups.

[0066] The projection image features include the projection pixel information of each projection image 200 overlapping and / or misaligning with other projection images 200; that is, the information on the overlap and / or misalignment of projection pixels in each projection image 200 with projection pixels in other projection images 200. Assuming the target projection surface 20 includes N projection images 200, the projection image features include the information on the overlap and / or misalignment of projection pixels in each of the N projection images 200.

[0067] It should be noted that multiple projected pixels used to display the same pixel in the image IM can achieve color mixing by overlapping each other, or they can achieve color mixing by being spaced apart by a preset distance. For example, when multiple projected pixels used to display the same pixel in the image IM overlap each other to achieve color mixing, then different projected pixels of the same pixel in the image IM that overlap are considered to be overlapping; when different projected pixels of the same pixel in the image IM that are spaced apart are considered to be misaligned. For example, when multiple projected pixels used to display the same pixel in the image IM that are spaced apart by a preset distance to achieve color mixing, then the distance between different projected pixels of the same pixel in the image IM that overlap is less than or equal to the preset distance, and they are considered to be overlapping; the distance between different projected pixels of the same pixel in the image IM that overlap is greater than the preset distance, and they are considered to be misaligned. This application embodiment uses the example of multiple projected pixels of the same pixel in the image IM that need to overlap each other to achieve color mixing as an example for illustration.

[0068] In this context, projection pixels that overlap with all other projection pixels 200 are called overlapping projection pixels, and projection pixels that do not overlap with at least one other projection pixel 200 are called misaligned projection pixels. The projection image features include information about both overlapping and misaligned projection pixels in each projection pixel 200.

[0069] For example, combining Figure 1 and Figure 2 The target projection surface 20 includes a red projection image 20R, a green projection image 20G, and a blue projection image 20B. The projection image features may include pixel columns and rows overlapping between the red projection image 20R and the green projection image 20G, pixel columns and rows overlapping between the red projection image 20R and the blue projection image 20B, and pixel columns and rows overlapping between the green projection image 20G and the blue projection image 20B; and / or, the projection image features may include pixel columns and rows misaligned between the red projection image 20R and the green projection image 20G, pixel columns and rows misaligned between the red projection image 20R and the blue projection image 20B, and pixel columns and rows misaligned between the green projection image 20G and the blue projection image 20B. The following explanation uses the example of overlapping and misaligned pixel columns and overlapping pixel rows of projection images 200 of different colors.

[0070] by Figure 2For example, based on the characteristics of the projected image, it can be concluded that the second to eighth pixel columns in the red projected image 20R overlap with the first to seventh pixel columns in the green projected image 20G and the first to seventh pixel columns in the blue projected image 20B. Furthermore, the first pixel column in the red projected image 20R does not overlap with either the green projected image 20G or the blue projected image 20B, and the eighth pixel column in both the green projected image 20G and the blue projected image 20B does not overlap with either the red projected image 20R. Then, the projected pixels in the 2nd to 8th pixel columns of the red projected image 20R, the projected pixels in the 1st to 7th pixel columns of the green projected image 20G, and the projected pixels in the 1st to 7th pixel columns of the blue projected image 20B are all overlapping projected pixels 201, and the projected pixels in the 1st pixel column of the red projected image 20R, the projected pixels in the 8th pixel column of the green projected image 20G, and the projected pixels in the 8th pixel column of the blue projected image 20B are all misaligned projected pixels 202.

[0071] Multiple target display data groups are respectively used to transmit to corresponding display panels 10, that is, different display panels 10 receive target data from different target data groups. The target data in the target data groups can be data voltage in analog signal form or grayscale value data in digital signal form. The target data groups can be obtained from initial image data, and obtaining the target data groups from the initial image data includes at least acquiring the display data to be received by each display panel 10 from the initial image data.

[0072] Each target display data group includes overlapping display data and misaligned display data. The overlapping display data included in different target display data groups correspond to the same scene in the image IM to be displayed. That is, the overlapping display data in each target display data group is obtained based on the initial image data corresponding to the same part in the image IM to be displayed; and the misaligned display data in each target display data group is obtained based on the initial image data corresponding to another part in the image IM to be displayed.

[0073] Furthermore, when acquiring multiple target display data groups, it is necessary to determine which data from the initial image data will result in overlapping display data and which data from the initial image data will result in misaligned display data, based on the characteristics of the projected image.

[0074] For example, with Figure 2For example, the red projection screen 20R, the green projection screen 20G, and the blue projection screen 20B each have 7 columns of pixels composed of overlapping projection pixels 201 and 1 column of pixels composed of misaligned projection pixels 202. The overlapping display data of each display panel 10 can be obtained from the image data of the 7 adjacent pixels in the initial image data, and the misaligned display data of each display panel 10 can be obtained from the image data of the other column of pixels in the initial image data.

[0075] S2: Control the overlapping display data in the target display data group to be transmitted to the overlapping panel pixel 101 in the corresponding display panel 10, and control the misaligned display data in the target display data group to be transmitted to the misaligned panel pixel 102 in the corresponding display panel 10.

[0076] The overlapping panel pixels 101 in the display panel 10 correspond to overlapping projection pixels 201 in the projection image 200 that overlap with all other projection images 200. The misaligned panel pixels 102 in the display panel 10 correspond to misaligned projection pixels 202 in the projection image 200 that are misaligned with at least one other projection image 200. Each projection image 200 is obtained by projecting the display image of a display panel 10 onto the target projection surface 20. Therefore, when the projection image 200 includes overlapping projection pixels 201, a portion of the panel pixels in the display panel 10 corresponding to the projection image 200 are defined as overlapping panel pixels 101, and these overlapping panel pixels 101 are displayed and projected to obtain the overlapping projection pixels 201 in the projection image 200. When the projection image 200 includes misaligned projection pixels 202, a portion of the panel pixels in the display panel 10 corresponding to the projection image 200 are defined as misaligned panel pixels 102, and these misaligned panel pixels 102 are displayed and projected to obtain the misaligned projection pixels 202 in the projection image 200.

[0077] Figure 4 This is a schematic diagram of a projection of an image to be displayed onto a target projection surface, which is related to an embodiment of this application.

[0078] For example, such as Figure 4As shown, the projected pixels in the 2nd to 8th pixel columns of the red projected image 20R, the projected pixels in the 1st to 7th pixel columns of the green projected image 20G, and the projected pixels in the 1st to 7th pixel columns of the blue projected image 20B are all overlapping projected pixels 201, while the projected pixels in the 1st pixel column of the red projected image 20R, the projected pixels in the 8th pixel column of the green projected image 20G, and the projected pixels in the 8th pixel column of the blue projected image 20B are all misaligned projected pixels 202. Assuming that the first to eighth pixel columns in the red projection image 20R correspond to the first to eighth pixel columns in the red display panel 10R, the first to eighth pixel columns in the green projection image 20G correspond to the first to eighth pixel columns in the green display panel 10G, and the first to eighth pixel columns in the blue projection image 20B correspond to the first to eighth pixel columns in the blue display panel 10B, then correspondingly, in the red display panel 10R... The panel pixels in the 2nd to 8th pixel columns, the panel pixels in the 1st to 7th pixel columns of the green display panel 10G, and the panel pixels in the 1st to 7th pixel columns of the blue display panel 10B are all overlapping panel pixels 101, while the panel pixels in the 1st pixel column of the red display panel 10R, the panel pixels in the 8th pixel column of the green display panel 10G, and the panel pixels in the 8th pixel column of the blue display panel 10B are all misaligned panel pixels 102.

[0079] The overlapping display data in the target display data group is transmitted to the overlapping panel pixel 101 in the corresponding display panel 10. Then, the overlapping panel pixel 101 in each display panel 10 can display the same part of the image to be displayed IM. Therefore, the overlapping projection pixel 201 in each projection screen 200 can display the same part of the image to be displayed IM, which solves the problem of the image to be displayed IM being blurry when displayed on the target projection surface 20.

[0080] For example, such as Figure 4As shown, the red projection screen 20R, green projection screen 20G, and blue projection screen 20B each have 7 columns of pixels composed of overlapping projection pixels 201 and 1 column of pixels composed of misaligned projection pixels 202. The overlapping display data received by the overlapping panel pixels 101 in the red display panel 10R, green display panel 10G, and blue display panel 10B are all obtained from the initial image data corresponding to the same 7 columns of adjacent pixels IM1-IM7 in the image to be displayed. Therefore, the overlapping panel pixels 101 in the red display panel 10R, green display panel 10G, and blue display panel 10B are used to display the images corresponding to the 7 adjacent columns of pixels in the image to be displayed. Thus, the overlapping projection pixels 201 in the red projection screen 20R, green projection screen 20G, and blue projection screen 20B are used to display the images corresponding to the 7 adjacent columns of pixels in the image to be displayed.

[0081] The misaligned display data can be related to the image to be displayed (IM) or unrelated to it. For example, regardless of how the image to be displayed (IM) changes, the misaligned display data received by different misaligned panel pixels 102 in the red display panel 10R can be the same, the misaligned display data received by different misaligned panel pixels 102 in the green display panel 10G can be the same, and the misaligned display data received by different misaligned panel pixels 102 in the blue display panel 10B can be the same.

[0082] In some embodiments, the misaligned display data received by different display panels 10 can make the misaligned panel pixels 102 in the display panel 10 all appear black.

[0083] Furthermore, the misaligned display data received by different display panels 10 can cause the misaligned panel pixels 102 in the display panel 10 to all display the corresponding color. For example, the misaligned display data received by the red display panel 10R causes the misaligned panel pixels 102 in the display panel 10 to display red, the misaligned display data received by the green display panel 10G causes the misaligned panel pixels 102 in the display panel 10 to display green, and the misaligned display data received by the blue display panel 10B causes the misaligned panel pixels 102 in the display panel 10 to display blue. At this time, the brightness of the misaligned panel pixel 102 can be the same as or similar to the brightness of its adjacent overlapping panel pixel 101, as shown in the reference. Figure 4The misaligned display data received by the red display panel 10R causes the leftmost misaligned panel pixel 102 of the red display panel 10R to appear red with the same brightness as the second column panel pixels (overlapping panel pixels 101) from the left. The misaligned display data received by the green display panel 10G causes the rightmost misaligned panel pixel 102 of the green display panel 10G to appear green with the same brightness as the second column panel pixels (overlapping panel pixels 101) from the right. The misaligned display data received by the blue display panel 10B causes the rightmost misaligned panel pixel 102 of the blue display panel 10B to appear blue with the same brightness as the second column panel pixels (overlapping panel pixels 101) from the right.

[0084] The signal processor included in the display module 01 processes the received image signals, such as decoding, scaling, and color correction. The image data obtained after the image signal is decoded by the signal processor can be the initial image data described in the embodiments of this application.

[0085] Figure 5 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0086] In one embodiment of this application, such as Figure 5 As shown, S1: Based on the features of the projected image and the initial image data of the image to be displayed IM, obtain multiple target display data groups, including:

[0087] S11: Based on the characteristics of the projected image, the initial image data of the image to be displayed IM is reconstructed to obtain the target image data group.

[0088] Figure 6 This is a schematic diagram illustrating the relationship between initial image data and the display screen of the display panel in an embodiment of this application.

[0089] like Figure 6 As shown, the pixel grayscale of the image data can be viewed as matrix data. Reconstructing the initial image data D0 to obtain the target image data group D1 can be understood as reconstructing the pixel grayscale matrix corresponding to the initial image data D0, including adjusting the coordinates and / or grayscale values ​​corresponding to the pixel grayscale of the initial image data D0, and finally obtaining the target image data group D1. The target image data group D1 includes overlapping image data and misaligned image data. The image corresponding to the overlapping image data can be displayed through the overlapping panel pixels 101 in each display panel 10 and presented through the overlapping projection pixels 201 of the projection screen 200. The image corresponding to the misaligned image data can be displayed through the misaligned panel pixels 102 in each display panel 10 and presented through the misaligned projection pixels 202 of the projection screen 200.

[0090] It should be noted that the initial image data D0 can be considered as including multiple initial image data groups, where the initial image data in each initial image data group corresponds to the image data to be displayed on different display panels 10. For example, if the display module 01 includes a red display panel 10R, a green display panel 10G, and a blue display panel 10B, then the initial image data D0 can be considered as including the red initial image data group D0R, the green initial image data group D0G, and the blue initial image data group D0B. The initial image data in the red initial image data group D0R corresponds to the red screen, the initial image data in the green initial image data group D0G corresponds to the green screen, and the initial image data in the blue initial image data group D0B corresponds to the blue screen.

[0091] In this context, the target image data group D1 can correspond one-to-one with the target display data group. For example, when the display module 01 includes three display panels 10, and these three receive display data from different target display data groups, that is, when the three target data groups correspond one-to-one with the three display panels 10 respectively, then three target image data groups D1 can be obtained from the initial image data D0, and these three target image data groups D1 correspond to the three target display data groups respectively. Specifically, when the display module 01 includes three display panels, namely a red display panel 10R, a green display panel 10G, and a blue display panel 10B, then the initial image data D0 yields the red target image data group D1R, the green target image data group D1G, and the blue target image data group D1B, and the display data in the target display data groups obtained from the red target image data group D1R, the green target image data group D1G, and the blue target image data group D1B are respectively transmitted to the red display panel 10R, the green display panel 10G, and the blue display panel 10B.

[0092] Since the images corresponding to the overlapping image data in the target image data group D1 need to be displayed through the overlapping panel pixel 101 and the overlapping projection pixel 201, the characteristics of the projected images can be used to determine which images are considered overlapping images and which are considered misaligned images.

[0093] S12: Convert the overlapping image data of the target image data group D1 into overlapping display data, and convert the misaligned image data in the target image data group D1 into misaligned display data to obtain the target display data group.

[0094] The image data in the target image data group D1 is converted into display data that can be recognized by the display panel 10, thus obtaining the target display data group. The overlapping image data in the target image data group D1 can be converted into overlapping display data, and the misaligned image data can be converted into misaligned display data. Specifically, the display data in the target display data group includes overlapping display data, which is transmitted to the overlapping panel pixels 101 in the display panel 10 to drive the overlapping panel pixels 101 to display and is shown through the overlapping projection pixels 201 of the projection screen 200. The overlapping image data in the target image data group D1 corresponds to the overlapping display data; correspondingly, the misaligned image data in the target image data group D1 corresponds to the misaligned display data.

[0095] After the target image data group D1 obtained by the signal processor is transmitted to the driver IC of the display module 01, the driver IC of the display module 01 converts the image data in the target image data group D1 into display data that can be recognized by the display panel 10. That is, in the screen alignment method provided in this embodiment, the driver IC of the display module 01 converts the target image data group D1 into a target display data group.

[0096] In this embodiment, before the image data is converted into display data, the initial image data D0 signal is processed according to the characteristics of the projected image to obtain the target image data group D1. The image data in the target image data group D1 includes overlapping image data corresponding to the overlapping projection pixels 201 in the display panel 10 and misaligned image data corresponding to the misaligned projection pixels 202 in the display panel 10. When converting the image data into display data, it is no longer necessary to consider the characteristics of the projected image. Therefore, the driver IC in the display module 01 can maintain its original computing power.

[0097] Figure 7 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0098] In one technical solution corresponding to this embodiment, such as Figure 7 As shown, S11: Based on the features of the projected image, the initial image data D0 of the image to be displayed IM is reconstructed to obtain the target image data group D1, including:

[0099] S111: Based on the characteristics of the projected image, a reference image data group and a target image data group are determined from multiple initial image data D0.

[0100] The reference image data set includes overlapping image data.

[0101] In this application, since different parts of the image IM to be displayed are displayed on different display panels 10 of the display module 01, the initial image data D0 can be regarded as being composed of multiple initial image data D0 groups, wherein the images corresponding to the image data in different initial image data D0 groups are displayed on different display panels 10. The reference image data group and the image data group to be adjusted can be regarded as different initial image data D0 groups.

[0102] Based on the characteristics of the projected image, overlapping image data and misaligned image data can be determined in the reference image data group. The overlapping image data in the reference image data group can be converted into overlapping display data to be received by the display panel 10 corresponding to the reference image data group and the corresponding image is displayed using overlapping projection pixels 201. The overlapping image data in the misaligned image data group can be converted into misaligned display data to be received by the display panel 10 corresponding to the reference image data group and the corresponding image is displayed using misaligned projection pixels 202.

[0103] The coordinates of the pixel grayscale represented by the image data included in the reference image data group can remain unchanged, and the coordinates of the overlapping image data in the reference image data group correspond to the overlapping panel pixels 101 in the display panel 10, so that the overlapping display data obtained by converting the overlapping image data can be transmitted to the corresponding overlapping panel pixels 101 and the brightness of the overlapping panel pixels 101 can be controlled; the coordinates of the misaligned image data in the reference image data group correspond to the misaligned panel pixels 102 in the display panel 10, so that the misaligned display data obtained by converting the misaligned image data can be transmitted to the corresponding misaligned panel pixels 102 and the brightness of the misaligned panel pixels 102 can be controlled.

[0104] S112: Select the first type of image data to be adjusted from the group of image data to be adjusted.

[0105] The overlapping image data in the first category of image data to be adjusted and the reference image data group correspond to the same screen in the image IM to be displayed.

[0106] Therefore, based on the overlapping image data in the reference image data group, the first type of image data to be adjusted can be selected from the initial image data D0 group to be adjusted, wherein the first type of image data to be adjusted and the overlapping image data in the reference image data group correspond to the same screen in the image IM to be displayed.

[0107] The technical solution of this application can be understood as selecting a portion of the image to be displayed (IM) and displaying that portion using the overlapping projection pixels 201 of each projection image 200, ultimately displaying that portion of the image clearly on the target projection surface 20. Therefore, the first type of image data to be adjusted selected in the image data group can be understood as the image data used by the display panel 10 corresponding to that image data group when displaying that portion of the image.

[0108] S113: Change the coordinates of the first type of image data to be adjusted to obtain overlapping image data.

[0109] The coordinates of the first type of image data to be adjusted are changed to obtain overlapping image data. The coordinates of the first type of image data to be adjusted are then matched with the coordinates of the overlapping panel pixels 101 in the phase display panel 10. This allows the overlapping display data obtained from the overlapping image data obtained from the first type of image data to be adjusted to be converted. The overlapping display data can be transmitted to the corresponding overlapping panel pixels 101 to control the brightness of the overlapping panel pixels 101.

[0110] Using the above method, it is only necessary to select the first type of image data to be adjusted from a portion of the initial image data D0 group and change the coordinates of these first type of image data to be adjusted to obtain the overlapping image data, without changing the coordinates of the image data in the reference image data group. Therefore, it will not pose a significant challenge to the computing power of the signal processor.

[0111] For example, combining Figure 2 and Figure 6 When the features of the projected image include Figure 2 When the projected pixel information is shown, then as follows: Figure 6As shown, the initial image data D0 can be divided into a red initial image data group D0R, a green initial image data group D0G, and a blue initial image data group D0B. The red initial image data group D0R is used as the reference image data group, while the green initial image data group D0G and the blue initial image data group D0B are both used as image data groups to be adjusted. Assuming that the image data in columns 1 to 8 of the red initial image data group D0R corresponds to the panel pixels in columns 1 to 8 of the red display panel 10R and the projection pixels in columns 1 to 8 of the red projection screen 20R, and since the projection pixels in columns 2 to 8 of the red projection screen 20R are overlapping projection pixels 201, the image data in columns 2 to 8 of the red initial image data group D0R are overlapping image data. Assuming that the pixels in columns 1 to 8 of the image to be displayed IM correspond to the pixels in columns 1 to 8 of the initial image data groups D0, this means that the overlapping image data in the reference image data group corresponds to the pixels in columns 2 to 8 of the image to be displayed IM. Therefore, the pixels in columns 2 to 8 of the green initial image data group D0G and the blue initial image data group D0B are used as the first type of image data to be adjusted. Since the projected pixels in columns 1 to 7 of the green projection screen 20G and the blue projection screen 20B are overlapping projection pixels 201, the coordinates of the first type of image data to be adjusted (the pixels in columns 2 to 8) in the green initial image data group D0G and the blue initial image data group D0B are changed to the coordinates in columns 1 to 7. The overlapping image data obtained from the first type of image data to be adjusted also corresponds to the pixels in columns 2 to 8 of the image to be displayed IM, and is displayed by the overlapping projection pixels 201 in the green projection screen 20G and the blue projection screen 20B. At this time, the overlapping projection pixels in the red projection image 20R, green projection image 20G and blue projection image 20B on the target projection surface 20 are used to display the images corresponding to the second to eighth columns of the image IM to be displayed, and a clear projection image 200 is presented on the target projection surface 20.

[0112] Figure 8 This is a schematic diagram illustrating the relationship between initial image data and the display screen of the display panel in an embodiment of this application.

[0113] For example, combining Figure 2 and Figure 8 When the features of the projected image include Figure 2 When the projected pixel information is shown, then as follows: Figure 8As shown, the initial image data D0 can be divided into a red initial image data group D0R, a green initial image data group D0G, and a blue initial image data group D0B. Both the green and blue initial image data groups D0G and D0B are used as reference image data groups, and the red initial image data group D0R is used as the image data group to be adjusted. Assuming that columns 1 to 8 of the image data in the green initial image data group D0 and the blue initial image data group D0B correspond to columns 1 to 8 of the panel pixels in the green display panel 10G and the blue display panel 10B, respectively, and also correspond to columns 1 to 8 of the projection pixels in the green projection screen 20G and the blue projection screen 20B, since columns 1 to 7 of the projection pixels in the green projection screen 20G and the blue projection screen 20B are overlapping projection pixels 201, then columns 1 to 7 of the image data in the green initial image data group D0G and the blue initial image data group D0B are overlapping image data. Assuming that the pixels in columns 1 to 8 of the image to be displayed IM correspond to the pixels in columns 1 to 8 of the initial image data groups D0, this means that the overlapping image data in the reference image data group corresponds to the pixels in columns 1 to 7 of the image to be displayed IM. Therefore, the pixels in columns 1 to 7 of the red initial image data group D0R are taken as the first type of image data to be adjusted. Since the projected pixels in columns 2 to 8 of the red projection image 20R are overlapping projection pixels 201, the coordinates of the first type of image data to be adjusted (the pixels in columns 1 to 7) in the red initial image data group D0R are changed to columns 2 to 8. The overlapping image data obtained from the first type of image data to be adjusted also corresponds to the pixels in columns 1 to 7 of the image to be displayed IM, and is displayed by the overlapping projection pixels 201 in the red projection image 20R. At this time, the overlapping projection pixels in the red projection image 20R, green projection image 20G and blue projection image 20B on the target projection surface 20 are used to display the images corresponding to the first to seventh columns of the image IM to be displayed, and a clear projection image 200 is presented on the target projection surface 20.

[0114] Figure 9 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0115] In one implementation, such as Figure 9 As shown, S11: Based on the features of the projected image, the initial image data D0 of the image to be displayed IM is reconstructed to obtain the target image data group D1, which may also include:

[0116] S114: Select the second type of image data to be adjusted from the group of image data to be adjusted.

[0117] The second category of image data to be adjusted consists of image data other than the first category of image data in the image data group to be adjusted. For example, such as... Figure 6 As shown, the green initial image data group D0G and the blue initial image data group D0B are the image data groups to be adjusted. The image data in columns 2 to 8 of both the green initial image data group D0G and the blue initial image data group D0B are all first-type image data to be adjusted. Therefore, the image data in column 1 of both the green initial image data group D0G and the blue initial image data group D0B are second-type image data to be adjusted. For example, if... Figure 8 As shown, the red initial image data group D0R is the image data group to be adjusted. The image data in columns 2 to 8 of the red initial image data group D0R are all first-type image data to be adjusted. Therefore, the image data in column 1 of the red initial image data group D0R is second-type image data to be adjusted.

[0118] S115: Change the grayscale value of the second type of image data to be adjusted to the first grayscale value and change the coordinates of the second type of image data to be adjusted to obtain misaligned image data.

[0119] S116: Change the grayscale value of the misaligned image data included in the reference image data group to the first grayscale value.

[0120] By changing the coordinates of the second type of image data to be adjusted to obtain misaligned image data, the coordinates of the second type of image data to be adjusted are then correlated with the coordinates of the misaligned panel pixels 102 in the display panel 10. This allows the misaligned image data obtained from the second type of image data to be adjusted to be converted into misaligned display data, which can then be transmitted to the corresponding misaligned panel pixels 102 to control the brightness of the misaligned panel pixels 102. Furthermore, by changing the grayscale value of the misaligned image data in the parameter image data group to a first grayscale value, all misaligned panel pixels 102 in the display panel 10 can display the first grayscale value, and all misaligned projection pixels 202 on the target projection surface 20 can display the first grayscale value.

[0121] For example, such as Figure 6As shown, when columns 2 to 8 of the initial green image data group D0G and the initial blue image data group D0B are all first-type image data and column 1 of the initial green image data group D0G and the initial blue image data group D0B is second-type image data, the grayscale values ​​of the first-type image data are all changed to the first grayscale value. Furthermore, since column 8 of the projection pixels in the green projection screen 20G and the blue projection screen 20B are misaligned projection pixels 202, the coordinates of the second-type image data to be adjusted (column 1 image data) in the initial green image data group D0G and the initial blue image data group D0B are changed to column 8. The misaligned image data obtained from the second-type image data to be adjusted is displayed by the misaligned projection pixels 202 in the green projection screen 20G and the blue projection screen 20B that do not overlap with the red projection screen 20R.

[0122] For example, such as Figure 8 As shown, when columns 1 to 7 of the initial red image data group D0R are all first-type image data and column 8 of the initial red image data group D0R is second-type image data, the grayscale values ​​of column 8 are all changed to the first grayscale value. Furthermore, since column 1 of the projected pixels in the red projection screen 20R is a misaligned projection pixel 202, the coordinates of the second-type image data to be adjusted (column 8) in the initial red image data group D0R are changed to column 1. The misaligned image data obtained from the second-type image data to be adjusted is displayed by the misaligned projection pixels 202 in the red projection screen 20R that do not overlap with the green projection screen 20G and the blue projection screen 20B.

[0123] The first grayscale value can be 0 grayscale. At this time, the misaligned panel pixels 102 in each display panel 10 receive the display data corresponding to 0 grayscale, so the misaligned panel pixels 102 in the display panel 10 display black, and correspondingly, the misaligned projection pixels 202 in each projection screen 200 display black.

[0124] The first grayscale value can also be grayscale 255. Alternatively, the first grayscale value can be other grayscale values. For example, the first grayscale value of the misaligned panel pixel 102 is the same as the grayscale value of its adjacent overlapping panel pixel 101.

[0125] In one implementation, misaligned image data can be obtained by changing only the coordinates of the second type of image data to be adjusted, without processing the grayscale values ​​of the second type of image data to be adjusted or the grayscale values ​​of the misaligned image data included in the reference image data group.

[0126] In some embodiments of this application, the display module 01 includes a first color display panel 10, a second color display panel 10, and a third color display panel 10. The image displayed on the first color display panel 10 is projected onto the target projection surface 20 as a first color projection image 20G, the image displayed on the second color display panel 10 is projected onto the target projection surface 20 as a second color projection image 200, and the image displayed on the third color display panel 10 is projected onto the target projection surface 20 as a third color projection image 200. For example, one of the first color display panel 10, the second color display panel 10, and the third color display panel 10 can be a red display panel 10R, a green display panel 10G, and a blue display panel 10B; correspondingly, one of the first color projection image 20G, the second color projection image 200, and the third color projection image 200 can be a red projection image 20R, a green projection image 20G, and a blue projection image 20B. The following explanation uses the example of a green display panel 10G as the first color display panel 10, a red display panel 10R as the second color display panel 10, and a blue display panel 10B as the third color display panel 10.

[0127] In one technical solution corresponding to these embodiments, in a first direction parallel to the target projection plane 20, the second color projection image 20R is offset by n projection pixels relative to both the first color projection image 20G and the third color projection image 20B towards the first projection orientation. That is, the distance by which the second color projection image 20R is offset from the first color projection image 20G and the third color projection image 20B towards the first projection orientation is n projection pixels. For example, as... Figure 2 As shown, the first direction is the row direction and the first offset position is to the left, n is 1, that is, the red projection screen 20R is offset to the left by 1 column of projection pixels relative to the blue projection screen 20B and the green projection screen 20G.

[0128] Figure 10 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0129] In one implementation, such as Figure 10 As shown, S111: Based on the characteristics of the projected image, a reference image data group and a target image data group are determined from multiple initial image data D0, including:

[0130] S111a: Based on the characteristics of the projected image, the initial image data D0 corresponding to the second color projection image 20R is determined as the reference image data group, and the initial image data D0 corresponding to the first color projection image 20G and the third color projection image 20B are both determined as the image data groups to be adjusted.

[0131] That is, multiple image data corresponding to the second color display panel 10R in the initial image data D0 are used as a reference image data group, and multiple image data corresponding to the first color display panel 10G and the third color display panel 10B in the initial image data D0 are used as the image data group to be adjusted.

[0132] In this implementation, based on the characteristics of the projected images, it is possible to determine which projected images 200 completely overlap and which initial image data D0 corresponding to these projected images 200 are respectively determined as the image data group to be adjusted.

[0133] For example, such as Figure 8 As shown, the red projection screen 20R is offset to the left by one column of projection pixels relative to the blue projection screen 20B and the green projection screen 20G. The initial image data group D0 corresponding to the red projection screen 20R is determined as the reference image data group, and the initial image data group D0 corresponding to the green projection screen 20G and the initial image data group D0 corresponding to the blue projection screen 20B are determined as the image data groups to be adjusted.

[0134] Figure 11 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0135] In one implementation, such as Figure 11 As shown, S111: Based on the characteristics of the projected image, a reference image data group and a target image data group are determined from multiple initial image data D0, including:

[0136] S111b: Based on the characteristics of the projected image, the initial image data D0 corresponding to the second color projection image 20R is determined as the image data group to be adjusted, and the initial image data D0 corresponding to the first color projection image 20G and the third color projection image 20B are both determined as reference image data groups. That is, multiple image data corresponding to the second color display panel 10R in the initial image data D0 are used as the image data group to be adjusted, and multiple image data corresponding to the first color display panel 10G and the third color display panel 10B in the initial image data D0 are used as reference image data groups.

[0137] In this implementation, based on the characteristics of the projected images, it is possible to determine which projected images 200 completely overlap and which are the different projected images 200. The initial image data D0 corresponding to these projected images 200 is determined as the reference image data group, which can reduce the workload of obtaining multiple target image data groups D1.

[0138] For example, such as Figure 7As shown, the red projection screen 20R is offset to the left by one column of projection pixels relative to the blue projection screen 20B and the green projection screen 20G. The initial image data group D0 corresponding to the green projection screen 20G and the initial image data group D0 corresponding to the blue projection screen 20B are determined as the reference image data group, and the initial image data group D0 corresponding to the red projection screen 20R is determined as the image data group to be adjusted.

[0139] Figure 12 This is a schematic diagram of a projection of an image to be displayed onto a target projection surface, which is related to an embodiment of this application.

[0140] In one technical solution corresponding to these embodiments, in a first direction parallel to the target projection plane 20, the second color projection image 20R is offset by n projection pixels relative to the first color projection image 20G in the first projection orientation, and the third color projection image 20B is offset by m projection pixels relative to the second color projection image 20R in the first projection orientation. That is, relative to the second color projection image 20R, the first color projection image 20G and the third color projection image 20B are offset to different sides of the second color projection image 20R in the first direction. Here, n and m can be equal or unequal.

[0141] For example, such as Figure 12As shown, the first direction is the row direction, the first offset direction is to the left, and the second offset direction is to the right. The green projection image 20G is offset to the left by one column of projection pixels relative to the red projection image 20R, and the blue projection image 20B is offset to the right by one column of projection pixels relative to the red projection image 20R. Assume that the first to eighth columns of pixels in the image IM to be displayed correspond to the first to eighth columns of image data in each initial image data group D0, and that the first to eighth columns of image data in each initial image data group D0 correspond to the first to eighth columns of panel pixels in the display panel 10. The second to seventh columns of projected pixels in the red projection image 20R are overlapping projection pixels 201. Correspondingly, the second to seventh columns of panel pixels in the red display panel 10R are overlapping panel pixels 101, and the second to seventh columns of image data in the red initial image data group D0R are overlapping image data. The first and eighth columns of projected pixels in the red projection image 20R are misaligned projection pixels 202. Correspondingly, the first and eighth columns of panel pixels in the red display panel 10R are misaligned panel pixels 102, and the first and eighth columns of image data in the red initial image data group D0R are misaligned image data. The 3rd to 8th columns of projected pixels in the green projection image 20G are overlapping projection pixels 201. Correspondingly, the 3rd to 8th columns of panel pixels in the green display panel 10G are overlapping panel pixels 101, and the 3rd to 8th columns of image data in the green initial image data group DOG are overlapping image data. The 1st and 2nd columns of projected pixels in the green projection image 20G are misaligned projection pixels 202. Correspondingly, the 1st and 2nd columns of panel pixels in the green display panel 10G are misaligned panel pixels 102, and the 1st and 2nd columns of image data in the green initial image data group DOG are misaligned image data. The first to sixth columns of projected pixels in the blue projection image 20B are overlapping projection pixels 201. Correspondingly, the first to sixth columns of panel pixels in the blue display panel 10B are overlapping panel pixels 101, and the first to sixth columns of image data in the blue initial image data group D0B are overlapping image data. The seventh and eighth columns of projected pixels in the blue projection image 20B are misaligned projection pixels 202. Correspondingly, the seventh and eighth columns of panel pixels in the blue display panel 10B are misaligned panel pixels 102, and the seventh and eighth columns of image data in the blue initial image data group D0B are misaligned image data.

[0142] The initial image data D0 can be divided into green initial image data group D0G, green initial image data group D0G, and blue initial image data group D0B. The red initial image data group D0R is used as the reference image data group, and both the green initial image data group D0G and the blue initial image data group D0B are used as the image data groups to be adjusted.

[0143] In one implementation, such as Figure 10 As shown, S111: Based on the characteristics of the projected image, a reference image data group and a target image data group are determined from multiple initial image data D0, including:

[0144] S111a: Based on the characteristics of the projected image, the initial image data D0 corresponding to the second color projection image 20R is determined as a reference image data group, and the initial image data D0 corresponding to the first color projection image 20G and the third color projection image 20B are both determined as image data groups to be adjusted. That is, multiple image data corresponding to the second color display panel 10R in the initial image data D0 are used as the reference image data group, and multiple image data corresponding to the first color display panel 10G and the third color display panel 10B in the initial image data D0 are used as image data groups to be adjusted.

[0145] In this implementation, based on the characteristics of the projected image, a projection image 200 located in the middle position can be determined among multiple projection images 200. The projection pixels contained in this projection image 200 overlap with the projection pixels of other projection images 200. The initial image data D0 corresponding to this projection image 200 is determined as a reference image data group.

[0146] Figure 13 This is a schematic diagram illustrating the relationship between initial image data and the display screen of the display panel in an embodiment of this application.

[0147] For example, combining Figure 12 and Figure 13 When the features of the projected image include Figure 12 When displaying the projected pixel information, the initial image data group D0 corresponding to the red projected image 20R is determined as the reference image data group, and the initial image data group D0 corresponding to the green projected image 20G and the initial image data group D0 corresponding to the blue projected image 20B are determined as the image data groups to be adjusted. Since the 2nd to 7th columns of projected pixels in the red projected image 20R are overlapping projected pixels 201, the image data in the 2nd to 7th columns of the red initial image data group D0R are overlapping image data. That is, the overlapping image data in the reference image data group corresponds to the 2nd to 7th columns of pixels in the image to be displayed IM. Therefore, as shown... Figure 13As shown, the image data in columns 2 to 7 of the green initial image data group D0G and the blue initial image data group D0B are used as the first type of image data to be adjusted. Since the projected pixels in columns 3 to 8 of the green projection image 20G are overlapping projection pixels 201 and the projected pixels in columns 1 to 6 of the blue projection image are overlapping projection pixels 201, the coordinates of the first type of image data to be adjusted (columns 2 to 7) in the green initial image data group D0G are changed to columns 3 to 8, and the coordinates of the first type of image data to be adjusted (columns 2 to 7) in the blue initial image data group D0B are changed to columns 1 to 6. The overlapping image data obtained from the first type of image data to be adjusted in the green initial image data group D0G and the overlapping image data obtained from the first type of image data to be adjusted in the blue initial image data group D0B both correspond to the images of the 2nd to 7th columns of the image to be displayed IM, and are displayed by the overlapping projection pixels 201 in the green projection image 20G and the blue projection image 20B. At this time, the overlapping projection pixels in the red projection image 20R, the green projection image 20G and the blue projection image 20B on the target projection surface 20 are used to display the images corresponding to the 2nd to 7th columns of the image to be displayed IM, and a clear projection image 200 is presented on the target projection surface 20.

[0148] Figure 14 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0149] In one implementation, such as Figure 14 As shown, S111: Based on the characteristics of the projected image, a reference image data group and a target image data group are determined from multiple initial image data D0, including:

[0150] S111d: Based on the characteristics of the projected image, the initial image data D0 corresponding to the first color projection image 20G is determined as the reference image data group, and the initial image data D0 corresponding to the second color projection image 20R and the third color projection image 20B are both determined as the image data groups to be adjusted. That is, multiple image data corresponding to the first color display panel 10G in the initial image data D0 are used as the reference image data group, and multiple image data corresponding to the second color display panel 10R and the third color display panel 10B in the initial image data D0 are used as the image data groups to be adjusted.

[0151] In this implementation, based on the characteristics of the projected image, a projected image 200 that is biased to one side can be determined from multiple projected images 200, and the initial image data D0 corresponding to the projected image 200 is determined as a reference image data group.

[0152] Figure 15This is a schematic diagram illustrating the relationship between initial image data and the display screen of the display panel in an embodiment of this application.

[0153] For example, combining Figure 12 and Figure 15 When the features of the projected image include Figure 12 When displaying the projected pixel information, the initial image data group D0 corresponding to the green projected image 20G is determined as the reference image data group, and the initial image data group D0 corresponding to the red projected image 20R and the initial image data group D0 corresponding to the blue projected image 20B are determined as the image data groups to be adjusted. Since the 3rd to 8th columns of projected pixels in the green projected image 20G are overlapping projected pixels 201, the 3rd to 8th columns of image data in the green initial image data group D0G are overlapping image data. That is, the overlapping image data in the reference image data group corresponds to the 3rd to 8th columns of pixels in the image to be displayed IM. Therefore, as shown... Figure 16 As shown, the image data in columns 3 to 8 of the red initial image data group D0R and the blue initial image data group D0B are taken as the first type of image data to be adjusted. Since the projected pixels in columns 2 to 7 of the red projection image 20R are overlapping projection pixels 201 and the projected pixels in columns 1 to 6 of the blue projection image are overlapping projection pixels 201, the coordinates of the first type of image data to be adjusted (columns 3 to 8) in the red initial image data group D0R are changed to columns 2 to 7, and the coordinates of the first type of image data to be adjusted (columns 3 to 8) in the blue initial image data group D0B are changed to columns 1 to 6. The overlapping image data obtained from the first type of image data to be adjusted in the red initial image data group D0R and the overlapping image data obtained from the first type of image data to be adjusted in the blue initial image data group D0B both correspond to the images of the 3rd to 8th columns of the image to be displayed IM, and are displayed by the overlapping projection pixels 201 in the red projection image 20R and the blue projection image 20B. At this time, the overlapping projection pixels in the red projection image 20R, the green projection image 20G and the blue projection image 20B on the target projection surface 20 are used to display the images corresponding to the 3rd to 8th columns of the image to be displayed IM, and a clear projection image 200 is presented on the target projection surface 20.

[0154] Figure 16 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0155] In one implementation, such as Figure 16 As shown, S111: Based on the characteristics of the projected image, a reference image data group and a target image data group are determined from multiple initial image data D0, including:

[0156] S111e: Based on the characteristics of the projected image, the initial image data D0 corresponding to the third color projection image 20B is determined as the reference image data group, and the initial image data D0 corresponding to the first color projection image 20G and the second color projection image 20R are both determined as the image data groups to be adjusted. That is, multiple image data corresponding to the third color display panel 10B in the initial image data D0 are used as the reference image data group, and multiple image data corresponding to the first color display panel 10G and the second color display panel 10R in the initial image data D0 are used as the image data groups to be adjusted.

[0157] In this implementation, based on the characteristics of the projected image, a projected image 200 that is biased to one side can be determined from multiple projected images 200, and the initial image data D0 corresponding to the projected image 200 is determined as a reference image data group.

[0158] Figure 17 This is a schematic diagram illustrating the relationship between initial image data and the display screen of the display panel in an embodiment of this application.

[0159] For example, combining Figure 12 and Figure 17 When the features of the projected image include Figure 12 When displaying the projected pixel information, the initial image data group D0 corresponding to the blue projected image 20B is determined as the reference image data group, and the initial image data group D0 corresponding to the red projected image 20R and the initial image data group D0 corresponding to the green projected image 20G are determined as the image data groups to be adjusted. Since the first to sixth columns of projected pixels in the blue projected image 20B are overlapping projected pixels 201, the first to sixth columns of image data in the blue initial image data group D0B are overlapping image data. That is, the overlapping image data in the reference image data group corresponds to the first to sixth columns of pixels in the image to be displayed IM. Therefore, as shown... Figure 18As shown, the image data in columns 1 to 6 of the initial red image data group D0R and the initial green image data group D0G are used as the first type of image data to be adjusted. Since the projected pixels in columns 2 to 7 of the red projection image 20R are overlapping projection pixels 201 and the projected pixels in columns 3 to 8 of the green projection image are overlapping projection pixels 201, the coordinates of the first type of image data to be adjusted (columns 1 to 6) in the initial red image data group D0R are changed to columns 2 to 7, and the coordinates of the first type of image data to be adjusted (columns 1 to 6) in the initial green image data group D0G are changed to columns 3 to 8. The overlapping image data obtained from the first type of image data to be adjusted in the red initial image data group D0R and the overlapping image data obtained from the first type of image data to be adjusted in the green initial image data group D0G both correspond to the images of the 3rd to 8th columns of the image to be displayed IM, and are displayed by the overlapping projection pixels 201 in the red projection image 20R and the green projection image 20G. At this time, the overlapping projection pixels in the red projection image 20R, the blue projection image 20B and the green projection image 20G on the target projection surface 20 are used to display the images corresponding to the 3rd to 8th columns of the image to be displayed IM, and a clear projection image 200 is presented on the target projection surface 20.

[0160] Figure 18 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0161] In one embodiment of this application, such as Figure 18 As shown, S11: Based on the features of the projected image, the initial image data D0 of the image to be displayed IM is reconstructed to obtain the target image data group D1, including:

[0162] S111': For each initial image data group, select the first type of image data to be adjusted and the second type of image data to be adjusted from the initial image data group D0.

[0163] The initial image data D0 can be considered as being composed of multiple initial image data groups, wherein the images corresponding to the image data in different initial image data groups are displayed on different display panels 10. The first type of image data to be adjusted included in different initial image data groups corresponds to the same image in the image IM to be displayed, and the second type of image data to be adjusted consists of other image data in the initial image data group besides the first type of image data to be adjusted; the second type of image data to be adjusted in the same initial image data group is located on both sides of the first type of image data to be adjusted.

[0164] Figure 19 This is a schematic diagram of a projection of an image to be displayed onto a target projection surface, related to an embodiment of this application. Figure 20This is a schematic diagram illustrating the relationship between initial image data and the display screen of the display panel in an embodiment of this application.

[0165] For example, such as Figure 20 As shown, the initial image data D0 can be divided into a green initial image data group D0G, a red initial image data group D0R, and a blue initial image data group D0B. The green projection screen 20G is offset to the left by two columns of projection pixels relative to the red projection screen 20R, and the blue projection screen 20B is offset to the right by one column of projection pixels relative to the red projection screen 20R. Each projection screen 200 includes 5 columns of overlapping projection pixels 201, and each display panel 10 includes 5 columns of overlapping panel pixels 101. Therefore, the initial image data group can include 5 columns of overlapping image data, which can be used as the first type of image data to be adjusted. Figure 20 As shown, in each initial image data group, columns 3 to 7, representing the same scene, are selected as the first type of image data to be adjusted. Furthermore, columns 1, 2, and 8 of the eight initial image data in each initial image data group are the second type of image data to be adjusted and are located on either side of the first type of image data to be adjusted.

[0166] It should be noted that "the second type of image data to be adjusted is located on both sides of the first type of image data to be adjusted" means that the display screen corresponding to the second type of image data to be adjusted is located on both sides of the display screen corresponding to the first type of image data to be adjusted.

[0167] S112': Based on the characteristics of the projected image, the coordinates of the first type of image data to be adjusted are changed to obtain overlapping image data.

[0168] If the first type of image data to be adjusted is located in the middle of the second type of image data to be adjusted, then the display screen corresponding to the first type of image data to be adjusted is located at a position far from the edge of the image to be displayed. By changing the first type of image data to overlapping image data, when the image to be displayed is shown on the target projection surface, the overlapping projection pixels 201 of each projection screen 200 display a position far from the edge of the image to be displayed. This avoids the loss of large, continuous areas of the image to be displayed, ensuring that the image to be displayed is relatively complete when shown on the target projection surface 20.

[0169] For example, combining Figure 19 and Figure 20If the 4th to 8th columns of the green projection image 20G are overlapping projection pixels 201, the 2nd to 6th columns of the red projection image 20R are overlapping projection pixels 201, and the 1st to 5th columns of the blue projection image 20B are overlapping projection pixels 201, then changing the coordinates of the 3rd to 7th columns of the image data in the green initial image data group D0G to the 4th to 8th columns will yield green overlapping image data; changing the coordinates of the 3rd to 7th columns of the image data in the red initial image data group D0R to the 2nd to 6th columns will yield red overlapping image data; and changing the coordinates of the 3rd to 7th columns of the image data in the blue initial image data group D0B to the 1st to 5th columns will yield blue overlapping image data.

[0170] Figure 21 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0171] In one embodiment of this application, such as Figure 21 As shown, S11: Based on the features of the projected image, the initial image data D0 of the image to be displayed IM is reconstructed to obtain the target image data group D1, which also includes:

[0172] S113': Change the grayscale value of the second type of image data to be adjusted to the first grayscale value and change the coordinates of the second type of image data to be adjusted to obtain misaligned image data.

[0173] For example, combining Figure 19 and Figure 20 If the first to third columns of the green projection image 20G are misaligned projection pixels 202, the first and seventh to eighth columns of the red projection image 20R are misaligned projection pixels 202, and the sixth to eighth columns of the blue projection image 20B are misaligned projection pixels 202, then by changing the coordinates of the first, second, and eighth columns of the image data in the green initial image data group D0G to the first to third columns and changing the grayscale value to 0, green misaligned image data is obtained; by changing the coordinates of the first, second, and eighth columns of the image data in the red initial image data group D0R to the first and seventh to eighth columns and changing the grayscale value to 0, red misaligned image data is obtained; and by changing the coordinates of the first, second, and eighth columns of the image data in the blue initial image data group D0B to the sixth to eighth columns and changing the grayscale value to 0, blue misaligned image data is obtained.

[0174] The first grayscale value can also be grayscale 255. Alternatively, the first grayscale value can be other grayscale values. For example, the first grayscale value of the misaligned panel pixel 102 is the same as the grayscale value of its adjacent overlapping panel pixel 101.

[0175] Figure 22This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0176] In one embodiment of this application, such as Figure 22 As shown, S11: Based on the features of the projected image, the initial image data D0 of the image to be displayed IM is reconstructed to obtain the target image data group D1, including:

[0177] S111'': Based on the characteristics of the projected image, the initial image data of the image to be displayed is compressed to obtain overlapping image data.

[0178] The initial image data D0 can be considered as being composed of multiple initial image data groups, where the images corresponding to the image data in different initial image data groups are displayed on different display panels 10. Compressing the initial image data of the image to be displayed to obtain overlapping image data can be understood as compressing each initial image data group to obtain overlapping image data groups corresponding to each initial image data group. The data in different overlapping image data groups correspond to overlapping panel pixels 101 in different display panels 10, which also correspond to overlapping projection pixels 201 in different projected images.

[0179] In this embodiment, compressing the initial image data of the image to be displayed can be seen as reducing the resolution of the image to be displayed; and the overlapping image data obtained after compressing the initial image data can be seen as the image to be displayed with reduced resolution being displayed through overlapping panel pixels 101 in different display panels 10 and presented through overlapping projection pixels 201 in each projection screen. In this embodiment, although the resolution of the image to be displayed displayed by the display panel is reduced compared to the initial resolution of the image to be displayed, the display panel can still display a relatively complete image to be displayed, and a relatively complete image to be displayed can also be presented on the target projection surface.

[0180] In addition, S11: Based on the characteristics of the projected image, reconstructing the initial image data D0 of the image to be displayed IM to obtain the target image data group D1 may also include:

[0181] S112'': Insert misaligned image data; to make the target image data group include overlapping image data and misaligned image data.

[0182] Figure 23 This is a schematic diagram illustrating the relationship between initial image data and the display screen of the display panel in an embodiment of this application.

[0183] For example, such as Figure 23As shown, the initial image data D0 can be divided into a green initial image data group D0G, a red initial image data group D0R, and a blue initial image data group D0B, as shown in the figure. Figure 23 The green projection image 20G is offset to the left by 2 columns of projection pixels relative to the red projection image 20R, and the blue projection image 20B is offset to the right by 1 column of projection pixels relative to the red projection image 20R. Therefore, each projection image 200 includes 5 columns of overlapping projection pixels 201, and each display panel 10 includes 5 columns of overlapping panel pixels 101. Thus, the 8 columns of image data in the initial image data group can be compressed to obtain 5 columns of overlapping image data in the target image data group D1.

[0184] Compression of the initial image data can be achieved as follows: Figure 23 As shown, the method of extracting pixel columns and / or pixel rows is used; other methods to reduce image resolution are also possible, and this application does not limit this.

[0185] Figure 24 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0186] In one embodiment of this application, such as Figure 24 As shown, S1: Based on the features of the projected image and the initial image data D0 of the image to be displayed IM, obtain multiple target display data groups, including:

[0187] S11': Convert the initial image data D0 of the image to be displayed IM into the initial display data group.

[0188] The initial display data group includes initial overlapping display data and initial misaligned display data. The initial overlapping display data is obtained by converting the overlapping image data in the initial image data D0, and the initial misaligned display data is obtained by converting the misaligned image data in the initial image data D0. The overlapping image data in different initial image data D0 correspond to the same screen in the image to be displayed IM.

[0189] S12': Based on the characteristics of the projected image, change the storage address of the initial overlapping display data in at least a portion of the initial display data group and change the storage address of the initial misaligned display data in the at least a portion of the initial display data group to obtain the target display data group.

[0190] By changing the storage address of the initial overlapping display data in at least a portion of the initial display data groups, the initial overlapping display data can be transmitted to the overlapping panel pixels 101 in the display panel; by changing the storage address of the initial misaligned display data in at least a portion of the initial display data groups, the initial misaligned display data can be transmitted to the misaligned panel pixels 102 in the display panel.

[0191] In this embodiment, in order to enable the overlapping panel pixels 101 in different display panels 10 to display the same part of the image IM to be displayed, the driver IC, after receiving the image data and obtaining the display data based on the image data, performs corresponding storage of the overlapping display data and the overlapping panel pixels 101. That is to say, in this embodiment, the core steps of the display module's image alignment method can be completed by the driver IC.

[0192] Assuming the characteristics of the projected image are as follows: Figure 4 As shown, the example of obtaining the target display data group corresponding to the red display panel will be used for illustration.

[0193] In the prior art, after obtaining the initial display data group corresponding to the red display panel based on the initial image data D0 of the image to be displayed IM, the initial display data in the initial display data group is stored in the corresponding preset storage location. Specifically, the storage location of the initial display data corresponding to the first column of the left side of the image to be displayed IM ensures that this initial display data is transmitted to the first column of the left side of the display panel, so that the first column of the left side of the display panel displays the first column of the left side of the image to be displayed; the storage location of the initial display data corresponding to the second column of the left side of the image to be displayed IM ensures that this initial display data is transmitted to the second column of the left side of the display panel, so that the second column of the left side of the image to be displayed IM is displayed, and so on.

[0194] In this embodiment, after obtaining the initial display data group corresponding to the red display panel based on the initial image data D0 of the image to be displayed IM, the initial display data in this initial display data group is stored in a changed storage location. Specifically, the storage location of the initial display data corresponding to the first column of the left side of the image to be displayed IM allows this display data to be transmitted to the second column of the left side of the display panel to display the first column of the left side of the image to be displayed IM; the storage location of the initial display data corresponding to the third column of the left side of the image to be displayed IM allows this display data to be transmitted to the third column of the left side of the display panel, so that the third column of the left side of the display panel displays the second column of the left side of the image to be displayed IM, and so on. Finally, as... Figure 4 As shown, the second to eighth columns of the red display panel 10R are used to display the first to seventh columns of the image IM to be displayed.

[0195] It can be seen that the purpose of changing the storage address of the initial overlapping display data in the initial display data group is to control the display data corresponding to the same screen in the image to be displayed IM to be transmitted to the overlapping panel pixels in the display panel. Therefore, changing the storage address of the initial overlapping display data in the initial display data group has the same purpose as changing the coordinates of the first type of image data to be adjusted. Therefore, the selection of which initial display data to use as the initial overlapping display data and how to change the storage address of the initial overlapping display data to correspond to the overlapping panel pixel 101 can be referenced from the concept of selecting the first type of image data to be adjusted and changing the coordinates of the first type of image data to be adjusted. This will not be elaborated further here.

[0196] Furthermore, the selection of initial display data as initial misalignment display data and the modification of the storage address and data value of the initial misalignment display data to correspond with the misalignment panel pixel 201 can be referenced from the concept of selecting the second type of image data to be adjusted and modifying the coordinates and grayscale values ​​of the second type of image data to be adjusted. These details will not be elaborated upon here.

[0197] Figure 25 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0198] In one embodiment of this application, such as Figure 25 As shown, S11': Convert the initial image data D0 of the image to be displayed IM into an initial display data group, including:

[0199] S11-1': Obtain the data voltage of the initial overlapping display data based on the grayscale values ​​of the overlapping image data in the initial image data D0;

[0200] S11-2': Based on the misaligned image data in the initial image data D0, the data voltage of the initial misaligned display data is determined as the first data voltage.

[0201] In this technical solution, the displayed data can specifically be data voltage. Therefore, changing the storage address of the initial overlapping display data in at least a portion of the initial display data group and changing the storage address of the initial misaligned display data in that at least a portion of the initial display data group is equivalent to changing the storage address of the data voltage.

[0202] Furthermore, the first data voltage can cause the misaligned panel pixel 101 to display black. Or the first data voltage can cause the misaligned panel pixel 101 to...

[0203] Figure 26 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0204] like Figure 26 As shown, the screen alignment method for the display module provided in this application embodiment may further include:

[0205] S01: Acquire images of each projection screen 200 on the target projection surface 20 and obtain the features of the projection screen.

[0206] In this embodiment, step S01 can be performed before step S1. The screen alignment method provided in this application can be executed every time the display module 01 is powered on, in which case steps S01, S1, and S2 are executed sequentially each time the display module 01 is powered on. Alternatively, the screen alignment method provided in this application can be executed upon the first startup of the display module 01 after it has left the factory, in which case steps S01, S1, and S2 are executed sequentially upon the first startup of the display module 01 after it has left the factory. The screen alignment method provided in this application can also be executed in response to user operation; when the user determines that screen alignment is required through buttons or options, steps S01, S1, and S2 are executed sequentially.

[0207] By acquiring images of each projection screen 200 on the target projection surface 20, the projection pixel information of each projection screen 200 overlapping and misaligning with other screens can be obtained.

[0208] Figure 27 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0209] In one embodiment of this application, such as Figure 27 As shown, S01: Acquire images of each projection screen 200 on the target projection surface 20, and obtain projection screen features, including:

[0210] S011a: Full-screen illumination of each display panel 10, and acquisition of the image of the projection screen 200 of the screen displayed on each display panel 10 on the target projection surface 20, to obtain the projection screen features.

[0211] When all display panels 10 in display module 01 are fully illuminated, the display images displayed by each display panel 10 are displayed as projected images 200 on the target projection surface 20, and all overlapping and misaligned projection pixels of each projected image 200 are presented. Therefore, the images of each projected image 200 on the target projection surface 200 can be obtained through a single image acquisition. In one implementation, all display panels 10 can be fully illuminated simultaneously, so that all overlapping and misaligned projection pixels of each projected image 200 are presented simultaneously.

[0212] By analyzing the images of each projected image 200 captured after each display panel 10 is fully lit, the characteristics of the projected image are obtained. For example, the individual pixels of the projected image 200 are divided in the captured image of the projected image 200, and the overlapping and misaligned projection pixel information of each projected image 200 is obtained based on the color changes in the image of the projected image 200.

[0213] by Figure 19 Taking this as an example, firstly, the green display panel 10G, red display panel 10R, and blue display panel 10B are simultaneously lit up in full screen. Then, the green projection image 20G, red projection image 20R, and blue projection image 20B all appear simultaneously on the target projection surface 20. At this time, the first column of the acquired projection pixel image is green, the second column is green, the third column is yellow, the fourth to eighth columns are white, the ninth column is purple, the tenth column is purple, and the eleventh column is blue. Therefore, it can be deduced that the fourth column of the green projection image 20G... The 8th column of projected pixels is overlapping projection pixel 201; the 2nd to 6th columns of projected pixels in the red projected image 20R are overlapping projection pixels 201; the 1st to 5th columns of projected pixels in the blue projected image 20B are overlapping projection pixels 201; the 1st to 3rd columns of projected pixels in the green projected image 20G are misaligned projection pixels 202; the 1st and 7th to 8th columns of projected pixels in the red projected image 20R are misaligned projection pixels 202; and the 6th to 8th columns of projected pixels in the blue projected image 20B are misaligned projection pixels 202.

[0214] Figure 28 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0215] In one embodiment of this application, such as Figure 28 As shown, S01: Acquire images of each projection screen 200 on the target projection surface 20, and obtain projection screen features, including:

[0216] S011b: Light up one display panel 10 in its entirety, and simultaneously light up the panel pixels of the other display panels 10 one by one.

[0217] In this context, multiple panel pixels located in the same group are arranged sequentially along the same direction. That is, multiple panel pixels arranged sequentially along the same direction can be regarded as panel pixels in the same group. After a display panel 10 is fully lit, when the panel pixels in other display panels 10 are lit up in groups one by one, the overlapping projection pixels 201 can be presented in groups one by one.

[0218] S012b: Acquire images of the projection images 200 of the images displayed on each display panel 10 onto the target projection surface 20 at a first frequency to obtain the projection image features.

[0219] The first frequency is the frequency at which the panel pixels in the other display panels 10 are lit up in rows. That is, after one row of the other display panels 10 is lit up, an image of the projected image 200 on the target projection surface 20 is captured once. As the other display panels 10 are lit up row by row, images of the projected pixels on the target projection surface 20 that change row by row are captured, and the range of the pixel rows of overlapping projected pixels 201 is determined based on the color changes of the images.

[0220] In this context, panel pixels within the same team can be either pixels in the same column or pixels in the same row. When information about the overlap and misalignment of projected pixels in the column direction is needed, the panel pixels are illuminated one team at a time, which can include illuminating the panel pixels row by row. When information about the overlap and misalignment of projected pixels in the row direction is needed, the panel pixels are illuminated one team at a time, which can include illuminating the panel pixels column by column.

[0221] The following explanation uses the example of lighting up panel pixels column by column instead of row by row as an example.

[0222] by Figure 19 Taking this as an example, first, the green display panel 10G is fully lit, and the green projection image 20R appears on the target projection surface 20. Then, the first column of the red display panel 10R and the first column of the blue display panel 10B are lit, and an image of the projection image 200 on the target projection surface 20 is captured once. At this time, the first column of the captured projection pixel image is green, the second column is green, the third column is yellow, the fourth column is white, and the fifth to eighth columns are green. It can be deduced that the green projection image 20G is offset to the left by 2 columns of projection pixels relative to the red projection image 20R, and the blue projection image 20B is offset to the right by 1 column of projection pixels relative to the red projection image 20R. Therefore, it can be deduced that the projected pixels in columns 4 to 8 of the green projection image 20G are overlapping projection pixels 201, the projected pixels in columns 2 to 6 of the red projection image 20R are overlapping projection pixels 201, the projected pixels in columns 1 to 5 of the blue projection image 20B are overlapping projection pixels 201, the projected pixels in columns 1 to 3 of the green projection image 20G are misaligned projection pixels 202, the projected pixels in columns 1 and 7 to 8 of the red projection image 20R are misaligned projection pixels 202, and the projected pixels in columns 6 to 8 of the blue projection image 20B are misaligned projection pixels 202.

[0223] Figure 29 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0224] In one embodiment of this application, such as Figure 29As shown, S01: Acquire images of each projection screen 200 on the target projection surface 20, and obtain projection screen features, including:

[0225] S011c: Simultaneously, the panel pixels in each display panel 10 are lit up one by one.

[0226] In this context, multiple panel pixels located in the same group are arranged sequentially in the same direction. That is, multiple panel pixels arranged sequentially in the same direction can be regarded as panel pixels in the same group.

[0227] S012c: Acquire images of the projected images 200 of the images displayed on each display panel 10 on the target projection surface 20 at a first frequency, and obtain the characteristics of the projected images.

[0228] The first frequency is the frequency at which the panel pixels in the display panel 10 are lit up in rows. That is, after each row of the display panels 10 is lit up simultaneously, an image of the projected image 200 on the target projection surface 20 is captured once. As the display panels 10 are lit up row by row, images of the projected pixels on the target projection surface 20 that change row by row are captured, and the range of the pixel rows of overlapping projected pixels 201 is determined based on the color changes of the images.

[0229] In this context, panel pixels within the same team can be either pixels in the same column or pixels in the same row. When information about the overlap and misalignment of projected pixels in the column direction is needed, the panel pixels are illuminated one team at a time, which can include illuminating the panel pixels row by row. When information about the overlap and misalignment of projected pixels in the row direction is needed, the panel pixels are illuminated one team at a time, which can include illuminating the panel pixels column by column.

[0230] The following explanation uses the example of lighting up panel pixels column by column instead of row by row as an example.

[0231] by Figure 19Taking this as an example, firstly, the first column of the green display panel 10G, the first column of the red display panel 10R, and the first column of the blue display panel 10B are lit up, and an image of the projected image 200 on the target projection surface 20 is captured once. At this time, the captured image of the projected pixels includes one column of green, one column of red, and one column of blue. Then, the second column of the green display panel 10G, the second column of the red display panel 10R, and the second column of the blue display panel 10B are lit up, and an image of the projected image 200 on the target projection surface 20 is captured once. At this point, in the image of the projected pixels acquired, the first column is green, the second column is green, the third column is red, the fourth column is purple, and the fifth column is blue. Then, the third column of the green display panel 10G, the third column of the red display panel 10R, and the third column of the blue display panel 10B are illuminated, and an image of the projected image 200 on the target projection surface 20 is acquired once. At this point, in the image of the projected pixels acquired, the first column is green, the second column is green, the third column is yellow, the fourth column is purple, the fifth column is purple, and the sixth column is blue. It can be deduced that the green projected image 20G is offset to the left by 2 columns of projected pixels relative to the red projected image 20R, and the blue projected image 20B is offset to the right by 1 column of projected pixels relative to the red projected image 20R. Therefore, it can be deduced that the projected pixels in columns 4 to 8 of the green projection image 20G are overlapping projection pixels 201, the projected pixels in columns 2 to 6 of the red projection image 20R are overlapping projection pixels 201, the projected pixels in columns 1 to 5 of the blue projection image 20B are overlapping projection pixels 201, the projected pixels in columns 1 to 3 of the green projection image 20G are misaligned projection pixels 202, the projected pixels in columns 1 and 7 to 8 of the red projection image 20R are misaligned projection pixels 202, and the projected pixels in columns 6 to 8 of the blue projection image 20B are misaligned projection pixels 202.

[0232] By lighting up at least one display panel 10 in sequence and acquiring images of the projected image 200 on the target projection surface 20 at a first frequency, the position coordinates of overlapping projection pixels 201 and misaligned projection pixels can be inferred from the color changes and the number of acquisitions.

[0233] It should be noted that the above explanation uses the example of lighting up panel pixels row by row instead of column by column. When panel pixels need to be lit up row by row to obtain information on the overlap and misalignment of projected pixels in the column direction, a similar column-by-column lighting method can be used, but the pixels are lit up row by row in a different direction.

[0234] Figure 30 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0235] In one embodiment of this application, such as Figure 30As shown, the screen alignment method for the display module 01 provided in this application embodiment may further include:

[0236] S00: Adjust the position of at least part of the display panel 10.

[0237] It can be understood that the methods provided in the previous embodiments were for fine-tuning the projected image of the display module 01, while the adjustment of the position of the system panel in this embodiment can be regarded as a coarse adjustment of the projected image of the display module 01. Through coarse adjustment, the misalignment between different projected images 200 on the target projection surface 20 can be prevented from being too large, so as to avoid losing too much image after fine adjustment.

[0238] Based on this embodiment, the display module provided in this application can have a coarse adjustment function. For example, in response to user operation, the mechanical structure of the display module can control the position of the display panel to change.

[0239] Furthermore, step S00 can be performed before step S01.

[0240] Figure 31 This is a flowchart illustrating a screen alignment method for a display module provided in an embodiment of this application.

[0241] In one embodiment of this application, such as Figure 31 As shown, the screen alignment method for the display module 01 provided in this application embodiment includes:

[0242] S02: Based on the characteristics of the projected image, determine whether the misalignment of different projected images 200 on the target projection surface 20 along the first direction exceeds the width of 0.5 projected pixels.

[0243] S1: If the width exceeds 0.5 projected pixels, then based on the characteristics of the projected image and the initial image data D0 of the image to be displayed IM, obtain multiple target display data groups.

[0244] In other words, before fine-tuning the projected image 200 of the display module 01, it is determined whether fine-tuning is needed based on the characteristics of the projected image. In this embodiment, if the misalignment of different projected images 200 along the first direction on the target projection surface 20 exceeds the width of 0.5 projection pixels, then fine-tuning is performed; otherwise, the image alignment process ends and no fine-tuning is performed.

[0245] It should be noted that when multiple projected pixels of the same pixel in the image to be displayed (IM) overlap to achieve color mixing, if the misalignment of different projected pixels of the same pixel in the first direction exceeds 0.5 projection pixel width, they are considered non-overlapping. This means that the misalignment of different projected images 200 on the target projection surface 20 along the first direction exceeds 0.5 projection pixel width. When multiple projected pixels of the same pixel in the image to be displayed (IM) are spaced at a preset distance to achieve color mixing, if the distance between different projected pixels of the same pixel in the image to be displayed (IM) is greater than the preset distance by 0.5 projection pixel width, they are considered non-overlapping. This means that the misalignment of different projected images 200 on the target projection surface 20 along the first direction exceeds 0.5 projection pixel width.

[0246] Figure 32 This is a schematic diagram of a display module provided in an embodiment of this application.

[0247] like Figure 32 As shown, this application embodiment provides a display module 01, which includes multiple display panels 10 and a control module 30. The control module 30 is used to execute the method provided in any of the above embodiments to realize the alignment control of the projected image 200 of the display module 01.

[0248] like Figure 1 As shown in the figure, this application embodiment provides a display module 01, which includes a plurality of display panels 10. The display images of the display panels 10 are projected onto a target projection surface 20 to present a corresponding projected image 200. The relationship between the panel pixels in the display panel 10 and the projection pixels in the projected image 200 has been described in the above embodiments and will not be repeated here.

[0249] When the misalignment of at least two projected images on the target projection surface along the first direction exceeds a preset value, the overlapping panel pixels 101 in different display panels 10 display the same image, and the misaligned panel pixels 102 in different display panels 10 display the first grayscale image; the overlapping panel pixels 101 in the display panel 10 correspond to the overlapping projection pixels 201 in the projected image 200 that overlap with other projected images 200, and the misaligned panel pixels 102 in the display panel 10 correspond to the misaligned projection pixels 202 in the projected image 200 that are misaligned with at least one other projected image 200.

[0250] For example, such as Figure 2 and Figure 4As shown, the overlapping panel pixels 101 in each display panel 10 are used to display the images corresponding to the first to seventh columns of pixels in the image to be displayed IM. Correspondingly, the different projection images 200 on the target projection surface 20 all display the same image; and the misaligned panel pixels 102 in each display panel 10 are used to display the same grayscale image.

[0251] In one embodiment of this application, such as Figure 4 As shown, the first grayscale image is a black image, that is, the misaligned panel pixels 102 in each display panel 10 are used to display a black image, and correspondingly, each misaligned projection pixel 202 on the target projection surface 20 displays a black image.

[0252] Furthermore, the first grayscale image can also be other images. For example, the first grayscale image displayed by the misaligned panel pixel 102 can be the same as or similar to the image displayed by its adjacent overlapping panel pixel 101, assuming the characteristics of the projected image are as follows: Figure 2 As shown, the first grayscale image displayed by the leftmost misaligned panel pixel 102 in the red display panel 10R can be the same as the image displayed by the second column of panel pixels (overlapping panel pixels 101) on the left. The first grayscale image displayed by the rightmost misaligned panel pixel 102 in the green display panel 10G can be the same as the image displayed by the second column of panel pixels (overlapping panel pixels 101) on the right. The first grayscale image displayed by the rightmost misaligned panel pixel 102 in the blue display panel 10B can be the same as the image displayed by the second column of panel pixels (overlapping panel pixels 101) on the right.

[0253] In one embodiment of this application, the display module 01 includes a first color display panel 10G, a second color display panel 10R, and a third color display panel 10B. The first color display panel 10G includes a first to L rows of first color panel pixels arranged along a second direction, the second color display panel 10R includes a first to L rows of second color panel pixels arranged along a third direction, and the third color display panel 10B includes a first to L rows of third color panel pixels arranged along a fourth direction.

[0254] In this context, panel pixels within the same team can be either panel pixels in the same column or panel pixels in the same row. The following explanation uses panel pixels in the same column as an example.

[0255] For example, the first color display panel 10G is a green display panel 10G and the green display panel 10G includes green panel pixels arranged in columns 1 to 8 along the second direction; the second color display panel 10R is a red display panel 10R and the red display panel 10R includes red panel pixels arranged in columns 1 to 8 along the third direction; and the third color display panel 10B is a blue display panel 10B and the blue display panel 10B includes blue panel pixels arranged in columns 1 to 8 along the fourth direction.

[0256] In a first direction parallel to the target projection surface 20, both the first color projection image 20G and the third color projection image 20B are offset by n projection pixels relative to the second color projection image 20R in the first projection direction. The first color projection image 20G is the projection of the image displayed by the first color display panel 10G onto the target projection surface 20, the second color projection image 20R is the projection of the image displayed by the second color display panel 10R onto the target projection surface 20, and the third color projection image 20B is the projection of the image displayed by the third color display panel 10B onto the target projection surface 20. For example, as... Figure 4 As shown, the second color projection image 20R is a red projection image 20R, the first color projection image 20G is a green projection image 20G, and the third color projection image 20B is a blue projection image 20B. Both the green projection image 20G and the blue projection image 20B are offset to the right by one projection pixel relative to the red projection image 20R on the target projection surface 20. That is, both the green projection image 20G and the blue projection image 20B are offset to the right relative to the red projection image 20R, and the width of the offset is approximately equal to the width of one projection pixel.

[0257] The projections of the second, third, and fourth directions onto the target projection plane 20 are the same as those of the first direction. For example, as... Figure 1 As shown, the light-emitting surfaces of the multiple display panels 10 included in the display module 01 are not in the same plane; however, the projected images 200 of the display images of these display panels 10 onto the target projection surface 20 are in the same plane. (Combined with...) Figure 1 and Figure 2 and Figure 4 The images displayed by the first to L columns of first color panel pixels arranged along the second direction are projected onto the target projection surface 20 to form the images displayed by the first to L columns of first color panel pixels arranged along the first direction. This can be understood as the projection of the second direction onto the target projection surface 20 being the same as that of the first direction. Correspondingly, the projections of the third and fourth directions onto the target projection surface 20 are the same as those of the first direction.

[0258] Furthermore, the first projection orientation and the first direction point in the same direction. That is, if the first projection orientation is to the right, then the first direction points from left to right.

[0259] In the first color display panel 10G, the first color panel pixels of the 1st to (Ln)th rows arranged along the second direction are overlapping panel pixels 101, and the first color panel pixels of the (L-n+1)th to Lth rows are staggered panel pixels 102; in the second color display panel 10R, the second color panel pixels of the (n+1)th to Lth rows arranged along the third direction are overlapping panel pixels 101, and the second color panel pixels of the 1st to nth rows are staggered panel pixels 102; in the third color display panel 10B, the third color panel pixels of the 1st to (Ln)th rows arranged along the fourth direction are overlapping panel pixels 101, and the third color panel pixels of the (L-n+1)th to Lth rows are staggered panel pixels 102.

[0260] That is, the first color panel pixels arranged in the first row to the (Ln)th row along the second direction, the second color panel pixels arranged in the (n+1)th row to the Lth row along the third direction, and the third color panel pixels arranged in the first row to the (Ln)th row along the fourth direction display the same screen as the image to be displayed in the IM.

[0261] For example, such as Figure 4 As shown, n=1, L=8, then Ln=7, n+1=2. The green panel pixels arranged in columns 1 to 7 along the second direction, the red panel pixels arranged in columns 2 to 8 along the third direction, and the blue panel pixels arranged in columns 1 to 7 along the fourth direction are all used to display the images corresponding to columns 1 to 7 of the image to be displayed, IM. Therefore, the overlapping projection pixels 201 in each projection image 200 in the target projection surface 20 can display the images corresponding to columns 1 to 7 of the image to be displayed, IM.

[0262] In one technical solution corresponding to this embodiment, combined with Figure 2 and Figure 6 The first color panel pixels arranged in the first color display panel 10G along the second direction, the first color panel pixels arranged in the second color display panel 10R along the third direction, the second color panel pixels arranged in the second color display panel 10R along the third direction, and the third color panel pixels arranged in the third color display panel 10B along the fourth direction, all display the images of the image to be displayed, the images of the first color panel 10G, the second color panel pixels arranged in the second direction, the second color panel pixels arranged in the third direction, the second color panel pixels arranged in the third direction, the second color panel pixels arranged in the third direction, all display the images of the second color panel 10G, the second color panel pixels arranged in the first color display panel 10G along the second direction, the second color panel pixels arranged in the second direction, the third color panel pixels arranged in the third direction, the second color panel pixels arranged in the first color display panel 10B along the fourth direction, all display the images of the second color panel pixels arranged in the second direction, the second color panel pixels arranged in the first color display panel 10G along the second direction, the second color panel pixels arranged in the second direction, the third color panel pixels arranged in the first direction, the second color panel pixels arranged in the third direction, and the third color panel pixels arranged in the first direction, the second color panel pixels arranged in the third direction, the third color panel pixels arranged in the first direction, the second color panel pixels arranged in the third direction, and the third color panel pixels arranged in the first direction, the second color panel pixels arranged in the fourth direction, all display the images of the second color panel 10G, the second color panel pixels arranged in the first direction, the second color panel pixels arranged in the second direction, the third color panel pixels arranged in the third direction, and the third color panel pixels arranged in the first direction, the second color panel pixels arranged in the third direction, the second color panel pixels arranged in the first direction, the second color panel pixels arranged in the third direction, and the third color panel pixels arranged in the first direction, the second color panel pixels arranged in the fourth direction, all display the images of the second color panel 10G, the second color panel pixels arranged in the second direction, the second color

[0263] For example, such as Figure 4As shown, n=1, L=8, then Ln=7, n+1=2. The green panel pixels arranged in columns 1 to 7 along the second direction, the red panel pixels arranged in columns 2 to 8 along the third direction, and the blue panel pixels arranged in columns 1 to 7 along the fourth direction are all used to display the images corresponding to columns 2 to 8 of the image to be displayed, IM. Therefore, the overlapping projection pixels 201 in each projection image 200 in the target projection surface 20 can display the images corresponding to columns 2 to 8 of the image to be displayed, IM.

[0264] In one technical solution corresponding to this embodiment, combined with Figure 2 and Figure 4 , Figure 8 The first to (Ln) rows of first color panel pixels arranged along the second direction in the first color display panel 10G, the (n+1) to Lth rows of second color panel pixels arranged along the third direction in the second color display panel 10R, and the first to (Ln) rows of third color panel pixels arranged along the fourth direction in the third color display panel 10B all display the first to (Ln) rows of the image to be displayed IM.

[0265] For example, such as Figure 4 As shown, n=1, L=8, then Ln=7, n+1=2. The green panel pixels arranged in columns 1 to 7 along the second direction, the red panel pixels arranged in columns 2 to 8 along the third direction, and the blue panel pixels arranged in columns 1 to 7 along the fourth direction are all used to display the images corresponding to columns 1 to 7 of the image to be displayed, IM. Therefore, the overlapping projection pixels 201 in each projection image 200 in the target projection surface 20 can display the images corresponding to columns 1 to 7 of the image to be displayed, IM.

[0266] It should be noted that the above examples illustrate the display schemes for each color display panel using the example of misaligned columns of projected pixels in the row direction for projected images of different colors. It is understood that the technical solution of this embodiment can also be used to determine the display scheme for each color display panel when there is misalignment of projected pixel rows in the column direction for projected images of different colors; this will not be elaborated further.

[0267] In one embodiment of this application, the display module 01 includes a first color display panel 10G, a second color display panel 10R, and a third color display panel 10B. The first color display panel 10G includes a first to L rows of first color panel pixels arranged along a second direction, the second color display panel 10R includes a first to L rows of second color panel pixels arranged along a third direction, and the third color display panel 10B includes a first to L rows of third color panel pixels arranged along a fourth direction.

[0268] In this context, panel pixels within the same team can be either panel pixels in the same column or panel pixels in the same row. The following explanation uses panel pixels in the same column as an example.

[0269] For example, the first color display panel 10G is a green display panel 10G and the green display panel 10G includes green panel pixels arranged in columns 1 to 8 along the second direction; the second color display panel 10R is a red display panel 10R and the red display panel 10R includes red panel pixels arranged in columns 1 to 8 along the third direction; and the third color display panel 10B is a blue display panel 10B and the blue display panel 10B includes blue panel pixels arranged in columns 1 to 8 along the fourth direction.

[0270] In a first direction parallel to the target projection surface 20, the second color projection image 20R is offset by n projection pixels relative to the first color projection image 20G in the first projection orientation, and the third color projection image 20B is offset by m projection pixels relative to the second color projection image 20R in the first projection orientation; the first color projection image 20G is the projection of the image displayed by the first color display panel 10G onto the target projection surface 20, the second color projection image 20R is the projection of the image displayed by the second color display panel 10R onto the target projection surface 20, and the third color projection image 20B is the projection of the image displayed by the third color display panel 10B onto the target projection surface 20. For example, as... Figure 12 As shown, the second color projection image 20R is a red projection image 20R, the first color projection image 20G is a green projection image 20G, and the third color projection image 20B is a blue projection image 20B. The red projection image 20R is offset to the right by 1 projection pixel relative to the blue projection image 20G on the target projection surface 20, and the blue projection image 20B is offset to the right by 1 projection pixel relative to the red projection image 20R on the target projection surface 20. That is, the red projection image 20R is offset to the right relative to the blue projection image 20G, and the width of the offset is approximately equal to the width of 1 projection pixel. The blue projection image 20B is offset to the right relative to the red projection image 20R, and the width of the offset is approximately equal to the width of 1 projection pixel.

[0271] The projections of the second, third, and fourth directions onto the target projection plane 20 are the same as those of the first direction. For example, as... Figure 1 As shown, the light-emitting surfaces of the multiple display panels 10 included in the display module 01 are not in the same plane; however, the projected images 200 of the display images of these display panels 10 onto the target projection surface 20 are in the same plane. (Combined with...) Figure 1 and Figure 12The images displayed by the first to L columns of first color panel pixels arranged along the second direction are projected onto the target projection surface 20 to form the images displayed by the first to L columns of first color panel pixels arranged along the first direction. This can be understood as the projection of the second direction onto the target projection surface 20 being the same as that of the first direction. Correspondingly, the projections of the third and fourth directions onto the target projection surface 20 are the same as those of the first direction.

[0272] Furthermore, the first projection orientation and the first direction point in the same direction. That is, if the first projection orientation is to the right, then the first direction points from left to right.

[0273] In the first color display panel 10G, the first color panel pixels of the (n+m+1)th to Lth rows arranged along the second direction are overlapping panel pixels 101 and the first color panel pixels of the 1st to (n+m)th rows are staggered panel pixels 102; in the second color display panel 10R, the second color panel pixels of the (m+1)th to (Ln)th rows arranged along the third direction are overlapping panel pixels 101 and the first color panel pixels of the (L-n+1)th to Lth rows are staggered panel pixels 102; in the third color display panel 10B, the third color panel pixels of the 1st to (Lnm)th rows arranged along the fourth direction are overlapping panel pixels 101 and the third color panel pixels of the 1st to (Ln-m+1)th rows are staggered panel pixels 102.

[0274] That is, the first color panel pixels of the (n+m+1)th to Lth rows arranged along the second direction, the second color panel pixels of the (m+1)th to (Ln)th rows arranged along the third direction, and the third color panel pixels of the 1st to (Lnm)th rows arranged along the fourth direction display the same screen as the image to be displayed in IM.

[0275] For example, such as Figure 12 As shown, with n=1, m=1, and L=8, then n+m+1=3, m+1=2, Ln=7, and Lnm=6. The green panel pixels arranged in columns 3 to 8 along the second direction, the red panel pixels arranged in columns 2 to 7 along the third direction, and the blue panel pixels arranged in columns 1 to 6 along the fourth direction are all used to display the images corresponding to the same 6 columns of pixels in the image to be displayed, IM. Therefore, the overlapping projection pixels 201 in each projection image 200 in the target projection surface 20 can display the images corresponding to the same 6 columns of pixels in the image to be displayed, IM.

[0276] In one technical solution corresponding to this embodiment, combined with Figure 12 and Figure 13The first color panel pixels arranged in the second direction in the first color display panel 10G, from the (n+m+1)th to the Lth first color panel pixels, arranged in the third direction in the second color display panel 10R, from the (m+1)th to the (Ln)th second color panel pixels, and arranged in the fourth direction in the third color display panel 10B, from the 1st to the (Lnm)th third color panel pixels, all display the (m+1)th to the (Ln)th image of the image to be displayed IM.

[0277] For example, such as Figure 13 As shown, with n=1, m=1, and L=8, then n+m+1=3, m+1=2, Ln=7, and Lnm=6. The green panel pixels arranged in columns 3 to 8 along the second direction, the red panel pixels arranged in columns 2 to 7 along the third direction, and the blue panel pixels arranged in columns 1 to 6 along the fourth direction are all used to display the images corresponding to columns 2 to 7 of the image to be displayed, IM. Therefore, the overlapping projection pixels 201 in each projection image 200 in the target projection surface 20 can display the images corresponding to columns 2 to 7 of the image to be displayed, IM.

[0278] In one technical solution corresponding to this embodiment, combined with Figure 12 and Figure 15 The first color panel pixels arranged in the second direction in the first color display panel 10G, from the (n+m+1)th to the Lth column, the second color panel pixels arranged in the third direction in the second color display panel 10R, and the third color panel pixels arranged in the fourth direction in the third color display panel 10B, all display the (n+m+1)th to the Lth column of the image to be displayed IM.

[0279] For example, such as Figure 15 As shown, with n=1, m=1, and L=8, then n+m+1=3, m+1=2, Ln=7, and Lnm=6. The green panel pixels arranged in columns 3 to 8 along the second direction, the red panel pixels arranged in columns 2 to 7 along the third direction, and the blue panel pixels arranged in columns 1 to 6 along the fourth direction are all used to display the images corresponding to columns 2 to 7 of the image to be displayed, IM. Therefore, the overlapping projection pixels 201 in each projection image 200 in the target projection surface 20 can display the images corresponding to columns 3 to 8 of the image to be displayed, IM.

[0280] In one technical solution corresponding to this embodiment, combined with Figure 12 and Figure 17The first color panel pixels arranged in the second direction in the first color display panel 10G, from the (n+m+1)th to the Lth first color panel pixels, arranged in the third direction in the second color display panel 10R, from the (m+1)th to the (Ln)th second color panel pixels, and arranged in the fourth direction in the third color display panel 10B, from the 1st to the (Lnm)th third color panel pixels, all display the first to the (Lnm)th images of the image IM to be displayed.

[0281] For example, such as Figure 17 As shown, with n=1, m=1, and L=8, then n+m+1=3, m+1=2, Ln=7, and Lnm=6. The green panel pixels arranged in columns 3 to 8 along the second direction, the red panel pixels arranged in columns 2 to 7 along the third direction, and the blue panel pixels arranged in columns 1 to 6 along the fourth direction are all used to display the images corresponding to columns 2 to 7 of the image to be displayed, IM. Therefore, the overlapping projection pixels 201 in each projection image 200 in the target projection surface 20 can display the images corresponding to columns 1 to 6 of the image to be displayed, IM.

[0282] It should be noted that the above examples illustrate the display schemes for each color display panel using the example of misaligned columns of projected pixels in the row direction for projected images of different colors. It is understood that the technical solution of this embodiment can also be used to determine the display scheme for each color display panel when there is misalignment of projected pixel rows in the column direction for projected images of different colors; this will not be elaborated further.

[0283] Each display panel 10 includes a first to a Lth row of panel pixels arranged along a first panel direction. The projection of the first panel direction onto the target projection surface 20 is the same as the first direction. For example, the display module 01 includes a green display panel 10G, a red display panel 10R, and a blue display panel 10B. The green display panel 10G includes a first to an eighth column of green panel pixels arranged along a second direction, the red display panel 10R includes a first to an eighth column of red panel pixels arranged along a third direction, and the blue display panel 10B includes a first to an eighth column of blue panel pixels arranged along a fourth direction. The projection of the second direction onto the target projection surface 20 is the same as the first direction, the projection of the third direction onto the target projection surface 20 is the same as the first direction, and the projection of the fourth direction onto the target projection surface 20 is the same as the first direction. Therefore, the second direction, the third direction, and the fourth direction are the first panel directions of the green display panel 10G, the red display panel 10R, and the blue display panel 10B, respectively.

[0284] When the number of staggered projection pixels 202 of all projection images 200 on the target projection surface 20 is greater than or equal to 2, the overlapping panel pixels 101 in each display panel 10 display the i-th to (Lj)-th images in the image to be displayed IM, where i is greater than or equal to 2 and j is greater than or equal to 1.

[0285] For example, such as Figure 13 As shown, the red projection image 20R is offset to the right by one projection pixel relative to the green projection image 20G on the target projection surface 20, and the blue projection image 20B is also offset to the right by one projection pixel relative to the red projection image 20R on the target projection surface 20. Therefore, the number of columns of misaligned projection pixels 202 of all projection images 200 on the target projection surface 20 along the first direction is equal to 2 columns. At this time, the overlapping panel pixels 101 in each display panel 10 display the 2nd to 7th columns of the image to be displayed IM, i.e., i=2, j=1, L=8, 8-1=7.

[0286] For example, such as Figure 20 As shown, the red projection image 20R is offset to the right by 2 projection pixels relative to the green projection image 20G on the target projection surface 20, and the blue projection image 20B is offset to the right by 1 projection pixel relative to the red projection image 20R on the target projection surface 20. Therefore, the number of columns of misaligned projection pixels 202 of all projection images 200 on the target projection surface 20 along the first direction is equal to 3 columns. At this time, the overlapping panel pixels 101 in each display panel 10 display the 3rd to 7th columns of the image to be displayed IM, i.e., i=3, j=1, L=8, 8-1=7.

[0287] It should be noted that the above examples illustrate the display schemes for each color display panel using the example of misaligned columns of projected pixels in the row direction for projected images of different colors. It is understood that the technical solution of this embodiment can also be used to determine the display scheme for each color display panel when there is misalignment of projected pixel rows in the column direction for projected images of different colors; this will not be elaborated further.

[0288] In one embodiment of this application, such as Figure 23 As shown, when the misalignment of at least two projected images along the first direction on the target projection surface 20 exceeds a preset value, the resolution of the image to be displayed IM presented by the overlapping panel pixels in the display panel 10 is lower than the resolution of the image to be displayed IM. That is, the display module reduces the resolution of the image to be displayed and displays it through the overlapping panel pixels in the display panel 10. Therefore, the user can see a more complete image to be displayed on the target projection surface 20.

[0289] It should be noted that, Figure 23The illustration shows how reducing the display resolution of the display panel 10 in the row direction can be achieved by taking pixel column extraction as an example. In some embodiments, when there is a misalignment of the projected pixel columns of different colors in the column direction, the display resolution of the display panel 10 in the column direction can also be reduced. For example, the display resolution of the display panel 10 in the column direction can be reduced by extracting pixel rows.

[0290] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A method for aligning the screen of a display module, characterized in that, The display module includes multiple display panels, each display panel corresponding to a multiple projection screen, wherein the projection screen is the image projected from the display screen of the display panel onto a target projection surface; the method includes: Based on the features of the projected image and the initial image data of the image to be displayed, multiple target display data groups are obtained; the features of the projected image include the projection pixel information of each projected image overlapping and / or misaligning with other projected images; the multiple target display data groups are respectively used to transmit to the corresponding display panels, and each target display data group includes overlapping display data and misaligned display data, and the overlapping display data included in different target display data groups correspond to the same image in the image to be displayed; The overlapping display data in the target display data group is controlled to be transmitted to the overlapping panel pixels in the corresponding display panel, and the misaligned display data in the target display data group is controlled to be transmitted to the misaligned panel pixels in the corresponding display panel; the overlapping panel pixels in the display panel correspond to overlapping projection pixels in the projected image that overlap with other projected images, and the misaligned panel pixels in the display panel correspond to misaligned projection pixels in the projected image that are misaligned with at least one other projected image.

2. The method according to claim 1, characterized in that, The process involves acquiring multiple target display data sets based on the features of the projected image and the initial image data of the image to be displayed, including: Based on the features of the projected image, the initial image data of the image to be displayed is reconstructed to obtain a target image data group; the target image data group includes overlapping image data and misaligned image data; The overlapping image data in the target image data group is converted into overlapping display data, and the misaligned image data in the target image data group is converted into misaligned display data to obtain the target display data group.

3. The method according to claim 2, characterized in that, The process of reconstructing the initial image data of the image to be displayed based on the features of the projected image to obtain the target image data group includes: Based on the projected image features, a reference image data group and a target image data group are determined from multiple initial image data sets; the reference image data group includes the overlapping image data. A first type of image data to be adjusted is selected from the group of image data to be adjusted; the first type of image data to be adjusted corresponds to the same scene in the image to be displayed as the overlapping image data in the reference image data group. The coordinates of the first type of image data to be adjusted are changed to obtain the overlapping image data.

4. The method according to claim 3, characterized in that, The step of reconstructing the initial image data of the image to be displayed based on the projected image features to obtain the target image data set further includes: A second type of image data to be adjusted is selected from the group of image data to be adjusted; the second type of image data to be adjusted consists of other image data in the group of image data to be adjusted besides the first type of image data to be adjusted. The grayscale value of the second type of image data to be adjusted is changed to the first grayscale value, and the coordinates of the second type of image data to be adjusted are changed to obtain the misaligned image data; The grayscale value of the misaligned image data included in the reference image data group is changed to a first grayscale value.

5. The method according to claim 4, characterized in that, The first gray level value is 0 gray level.

6. The method according to claim 3, characterized in that, The display module includes a first color display panel, a second color display panel, and a third color display panel; in a first direction parallel to the target projection surface, the second color projection image is offset by n projection pixels relative to both the first and third color projection images in the first projection orientation; the first color projection image is the projection of the image displayed on the first color display panel onto the target projection surface, the second color projection image is the projection of the image displayed on the second color display panel onto the target projection surface, and the third color projection image is the projection of the image displayed on the third color display panel onto the target projection surface; the step of determining a reference image data group and a target image data group from multiple initial image data based on the projection image characteristics includes: Based on the characteristics of the projected image, the initial image data corresponding to the second color projected image is determined as the reference image data group, and the initial image data corresponding to the first color projected image and the third color projected image are respectively determined as the image data group to be adjusted.

7. The method according to claim 3, characterized in that, The display module includes a first color display panel, a second color display panel, and a third color display panel; in a first direction parallel to the target projection surface, the second color projection image is offset by n projection pixels relative to both the first and third color projection images in the first projection orientation; the first color projection image is the projection of the image displayed on the first color display panel onto the target projection surface, the second color projection image is the projection of the image displayed on the second color display panel onto the target projection surface, and the third color projection image is the projection of the image displayed on the third color display panel onto the target projection surface; the step of determining a reference image data group and a target image data group from multiple initial image data based on the projection image characteristics includes: Based on the characteristics of the projected image, the initial image data corresponding to the second color projected image is determined as the image data group to be adjusted, and the initial image data corresponding to the first color projected image and the third color projected image are respectively determined as reference image data groups.

8. The method according to claim 3, characterized in that, The display module includes a first color display panel, a second color display panel, and a third color display panel; in a first direction parallel to the target projection surface, the second color projection image is offset by n projection pixels relative to the first color projection image in the first projection orientation, and the third color projection image is offset by m projection pixels relative to the second color projection image in the first projection orientation; the first color projection image is the projection of the image displayed by the first color display panel onto the target projection surface, the second color projection image is the projection of the image displayed by the second color display panel onto the target projection surface, and the third color projection image is the projection of the image displayed by the third color display panel onto the target projection surface; the step of determining a reference image data group and a target image data group from multiple initial image data based on the projection image features includes: Based on the characteristics of the projected image, the initial image data corresponding to the second color projected image is determined as the reference image data group, and the initial image data corresponding to the first color projected image and the third color projected image are both determined as the image data group to be adjusted, or... Based on the characteristics of the projected image, the initial image data corresponding to the first color projected image is determined as the reference image data group, and the initial image data corresponding to the second color projected image and the third color projected image are both determined as the image data groups to be adjusted; or... Based on the characteristics of the projected image, the initial image data corresponding to the third color projected image is determined as the reference image data group, and the initial image data corresponding to the first color projected image and the second color projected image are respectively determined as the image data group to be adjusted.

9. The method according to claim 2, characterized in that, The step of reconstructing the initial image data of the image to be displayed based on the features of the projected image to obtain the target image data group includes: For each of the initial image data groups, a first type of image data to be adjusted and a second type of image data to be adjusted are selected from the initial image data group; the first type of image data to be adjusted included in different initial image data groups corresponds to the same scene in the image to be displayed, and the second type of image data to be adjusted is other image data in the image data group to be adjusted except for the first type of image data to be adjusted; the second type of image data to be adjusted in the same initial image data group is located on both sides of the first type of image data to be adjusted. Based on the characteristics of the projected image, the coordinates of the first type of image data to be adjusted are changed to obtain the overlapping image data.

10. The method according to claim 9, characterized in that, The step of reconstructing the initial image data of the image to be displayed based on the projected image features to obtain the target image data set further includes: The grayscale value of the second type of image data to be adjusted is changed to the first grayscale value, and the coordinates of the second type of image data to be adjusted are changed to obtain the misaligned image data.

11. The method according to claim 2, characterized in that, The process of reconstructing the initial image data of the image to be displayed based on the features of the projected image to obtain the target image data group includes: Based on the characteristics of the projected image, the initial image data of the image to be displayed is compressed to obtain the overlapping image data.

12. The method according to claim 1, characterized in that, The process involves acquiring multiple target display data sets based on the features of the projected image and the initial image data of the image to be displayed, including: The initial image data of the image to be displayed is converted into an initial display data group; the initial display data group includes initial overlapping display data and initial misaligned display data. The initial overlapping display data is obtained by converting the overlapping image data in the initial image data, and the initial misaligned display data is obtained by converting the misaligned image data in the initial image data. The overlapping image data in different initial image data correspond to the same scene in the image to be displayed. Based on the characteristics of the projected image, the storage address of the initial overlapping display data in at least a portion of the initial display data group is changed, and the storage address of the initial misaligned display data in the at least a portion of the initial display data group is changed to obtain the target display data.

13. The method according to claim 12, characterized in that, The step of converting the initial image data of the image to be displayed into an initial display data set includes: The data voltage of the initial overlapping display data is obtained based on the grayscale values ​​of the overlapping image data in the initial image data; Based on the misaligned image data in the initial image data, the data voltage of the initial misaligned display data is determined as the first data voltage.

14. The method according to claim 1, characterized in that, The method further includes: Images of each of the projected images on the target projection surface are acquired to obtain the features of the projected images.

15. The method according to claim 14, characterized in that, The acquisition of projection images on the target projection surface and the obtaining of projection image features include: Each of the display panels is fully illuminated, and the image of the projected image displayed on each of the display panels is captured on the target projection surface to obtain the features of the projected image.

16. The method according to claim 14, characterized in that, The acquisition of projection images on the target projection surface and the obtaining of projection image features include: One of the display panels is fully illuminated, and the panel pixels in the other display panels are simultaneously illuminated in rows; multiple panel pixels in the same row are arranged sequentially in the same direction; Images of the projected images displayed on each of the display panels on the target projection surface are acquired at a first frequency to obtain the features of the projected images; the first frequency is the frequency at which the panel pixels in the other display panels are lit up one after another.

17. The method according to claim 14, characterized in that, The acquisition of projection images on the target projection surface and the obtaining of projection image features include: Simultaneously, the panel pixels in each of the display panels are lit up one by one in each row; multiple panel pixels in the same row are arranged sequentially in the same direction; Images of the projected images displayed on each of the display panels on the target projection surface are acquired at a first frequency to obtain the features of the projected images; the first frequency is the frequency at which the panel pixels in the display panel are lit up one row at a time.

18. The method according to claim 1, characterized in that, The method further includes: The position of at least a portion of the display panel is adjusted.

19. The method according to claim 1, characterized in that, The method further includes: Based on the characteristics of the projected images, it is determined whether the misalignment of different projected images on the target projection surface along the first direction exceeds the width of 0.5 projected pixels. If the width exceeds 0.5 projected pixels, multiple target display data groups are obtained based on the characteristics of the projected image and the initial image data of the image to be displayed.

20. A display module, characterized in that, It includes multiple display panels and a control module, wherein the control module is used to perform the method according to any one of claims 1-19.

21. A display module, characterized in that, It includes multiple display panels, and the display screens of the display panels are projected onto the target projection surface to present the corresponding projected image; When the misalignment of at least two of the projected images along the first direction on the target projection surface exceeds a preset value, the overlapping panel pixels in different display panels display the same image and the misaligned panel pixels in different display panels display the first grayscale image; the overlapping panel pixels in the display panel correspond to the overlapping projection pixels in the projected image that overlap with other projected images, and the misaligned panel pixels in the display panel correspond to the misaligned projection pixels in the projected image that are misaligned with at least one other projected image.

22. The display module according to claim 21, characterized in that, The first grayscale image is a black image.

23. The display module according to claim 21, characterized in that, The display module includes a first color display panel, a second color display panel, and a third color display panel; the first color display panel includes a first color panel pixel array of 1 to L rows arranged along a second direction, the second color display panel includes a second color panel pixel array of 1 to L rows arranged along a third direction, and the third color display panel includes a third color panel pixel array of 1 to L rows arranged along a fourth direction. In a first direction parallel to the target projection surface, both the first color projection image and the third color projection image are offset by n projection pixels relative to the second color projection image in the first projection direction; the first color projection image is the projection of the image displayed by the first color display panel onto the target projection surface, the second color projection image is the projection of the image displayed by the second color display panel onto the target projection surface, and the third color projection image is the projection of the image displayed by the third color display panel onto the target projection surface; the projections of the second direction, the third direction, and the fourth direction onto the target projection surface are the same as those of the first direction; In the first color display panel, the first color panel pixels arranged along the second direction from the 1st to the (Ln)th are overlapping panel pixels, and the first color panel pixels arranged from the (L-n+1)th to the Lth are staggered panel pixels; in the second color display panel, the second color panel pixels arranged along the third direction from the (n+1)th to the Lth are overlapping panel pixels, and the first color panel pixels arranged from the 1st to the nth are staggered panel pixels; in the third color display panel, the third color panel pixels arranged along the fourth direction from the 1st to the (Ln)th are overlapping panel pixels, and the third color panel pixels arranged from the (L-n+1)th to the Lth are staggered panel pixels.

24. The display module according to claim 23, characterized in that, The first to (Ln)th rows of first color panel pixels arranged along the second direction in the first color display panel, the (n+1)th to Lth rows of second color panel pixels arranged along the third direction in the second color display panel, and the first to (Ln)th rows of third color panel pixels arranged along the fourth direction in the third color display panel all display the (n+1)th to Lth rows of the image to be displayed.

25. The display module according to claim 23, characterized in that, The first to (Ln)th rows of first color panel pixels arranged along the second direction in the first color display panel, the (n+1)th to Lth rows of second color panel pixels arranged along the third direction in the second color display panel, and the first to (Ln)th rows of third color panel pixels arranged along the fourth direction in the third color display panel all display the first to (Ln)th rows of images of the image to be displayed.

26. The display module according to claim 21, characterized in that, The display module includes a first color display panel, a second color display panel, and a third color display panel; the first color display panel includes a first color panel pixel array of 1 to L arrays arranged along a second direction, the second color display panel includes a first color panel pixel array of 1 to L arrays arranged along a third direction, and the third color display panel includes a first color panel pixel array of 1 to L arrays arranged along a fourth direction. In a first direction parallel to the target projection surface, the second color projection image is offset by n projection pixels relative to the first color projection image in the first projection orientation, and the third color projection image is offset by m projection pixels relative to the second color projection image in the first projection orientation; the first color projection image is the projection of the image displayed by the first color display panel onto the target projection surface, the second color projection image is the projection of the image displayed by the second color display panel onto the target projection surface, and the third color projection image is the projection of the image displayed by the third color display panel onto the target projection surface; the projections of the second direction, the third direction, and the fourth direction onto the target projection surface are the same as those of the first direction; In the first color display panel, the first color panel pixels in the (n+m+1)th to Lth rows arranged along the second direction are overlapping panel pixels, and the first color panel pixels in the 1st to (n+m)th rows are staggered panel pixels; in the second color display panel, the second color panel pixels in the (m+1)th to (Ln)th rows arranged along the third direction are overlapping panel pixels, and the first color panel pixels in the (L-n+1)th to Lth rows are staggered panel pixels; in the third color display panel, the third color panel pixels in the 1st to (Lnm)th rows arranged along the fourth direction are overlapping panel pixels, and the third color panel pixels in the (Ln-m+1)th to Lth rows are staggered panel pixels.

27. The display module according to claim 26, characterized in that, The first color panel pixels arranged in the (n+m+1)th to Lth columns along the second direction in the first color display panel, the second color panel pixels arranged in the (m+1)th to (Ln)th columns along the third direction in the second color display panel, and the third color panel pixels arranged in the 1st to (Lnm)th columns along the fourth direction in the third color display panel all display the (m+1)th to (Ln)th columns of the image to be displayed.

28. The display module according to claim 26, characterized in that, The (n+m+1)th to Lth columns of first color panel pixels arranged along the second direction in the first color display panel, the (m+1)th to (Ln)th columns of second color panel pixels arranged along the third direction in the second color display panel, and the 1st to (Lnm)th columns of third color panel pixels arranged along the fourth direction in the third color display panel all display the (n+m+1)th to Lth columns of the image to be displayed.

29. The display module according to claim 26, characterized in that, The first color panel pixels arranged in the (n+m+1)th to Lth rows along the second direction in the first color display panel, the second color panel pixels arranged in the (m+1)th to (Ln)th rows along the third direction in the second color display panel, and the third color panel pixels arranged in the 1st to (Lnm)th rows along the fourth direction in the third color display panel all display the first to (Lnm)th rows of the image to be displayed.

30. The display module according to claim 21, characterized in that, Each of the aforementioned display panels includes a first to a Lth row of panel pixels arranged along a first panel direction, wherein the projection of the first panel direction onto the target projection surface is the same as the first direction; When the number of misaligned projection pixel teams along the first direction of all projection images on the target projection surface is greater than or equal to 2 teams, the overlapping panel pixels in each display panel display the i-th to (Lj)-th teams of the image to be displayed, where i is greater than or equal to 2 and j is greater than or equal to 1.

31. The display module according to claim 21, characterized in that, When the misalignment of at least two of the projected images along the first direction on the target projection surface exceeds a preset value, the resolution of the image to be displayed presented by the overlapping panel pixels in the display panel is less than the resolution of the image to be displayed.

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