Display module, preparation method and device

Abstract

The embodiment of the invention provides a display module and a preparation method and device. The display module comprises a display panel, a decorative film, side shading ink and side decorative ink. The decorative film is located on the light emitting side of the display panel; the side edge shading ink is located on the periphery of the display panel, and the side edge shading ink is overlapped with the display panel in the direction parallel to the plane where the display panel is located; the side edge decoration ink is located on the side, away from the display panel, of the side edge shading ink, and the side edge decoration ink and the side edge shading ink are at least partially overlapped in the direction parallel to the plane where the display panel is located; wherein the decorative film comprises a first part, the first part is adjacent to the side edge shading ink, and the color of the first part is correspondingly the same as that of the side edge decorative ink. The display module provided by the embodiment of the invention aims at reducing the existence feeling of the black frame of the decorative screen and improving the experience feeling.

Description

Technical Field

[0001] This application relates to the field of displays, and more particularly to a display module, a manufacturing method, and an apparatus. Background Technology

[0002] Decorative screens are innovative products that integrate display technology and spatial aesthetics. By deeply combining high-definition display functions with artistic design, they achieve the dual value of "decorative when off, and displayable when on." Their core lies in breaking away from the single function of traditional displays, becoming an organic component of the spatial environment, and are widely used in commercial, cultural tourism, residential, and urban public spaces. With the advancement of display technology, the application scenarios for decorative screens are becoming increasingly diverse.

[0003] However, in related technologies, the sides are encapsulated with black ink during the manufacturing process of the decorative screen to prevent light leakage at the edges. This black ink on the sides results in black lines on the border, leading to issues such as: Figure 1 As shown, a black border exists when the screen is off, reducing the decorative effect. When the screen is on, there is also a black border between the display and the background, affecting the user experience. Summary of the Invention

[0004] In view of this, embodiments of this application provide a display module, a manufacturing method, and an apparatus, aiming to reduce the presence of the black border of the decorative screen and improve the user experience.

[0005] In a first aspect, embodiments of this application provide a display module, including: a display panel, a decorative film, a side-shielding ink, and a side-decorative ink. The decorative film is located on the light-emitting side of the display panel; the side-shielding ink is located on the outer periphery of the display panel and overlaps with the display panel along a direction parallel to the plane of the display panel; the side-decorative ink is located on the side of the side-shielding ink away from the display panel and overlaps with the side-shielding ink at least partially along a direction parallel to the plane of the display panel; wherein, the decorative film includes a first portion, the first portion being adjacent to the side-shielding ink, and the color of the first portion corresponding to the same color as the side-decorative ink.

[0006] In one possible implementation of the first aspect, the display panel includes a substrate, and along the stacking direction of the display panel and the decorative film, the distance between the surface of the side-shielding ink facing away from the display panel and the substrate is a first distance, and the distance between the surface of the side-decorative ink facing away from the display panel and the substrate is a second distance; the first distance and the second distance are equal.

[0007] In one possible implementation of the first aspect, the display panel includes a substrate, and along the stacking direction of the display panel and the decorative film, the distance between the surface of the side-shielding ink facing away from the display panel and the substrate is a first distance, and the distance between the surface of the side-decorative ink facing away from the display panel and the substrate is a second distance; the first distance is less than the second distance.

[0008] In one possible implementation of the first aspect, along the stacking direction of the display panel and the decorative film, the side decorative ink covers the side light-shielding ink, and the surface of the side decorative ink facing away from the display panel is located on the side of the side light-shielding ink away from the display panel.

[0009] In one possible implementation of the first aspect, the pattern of the first portion is aligned with the surface pattern of the side decorative ink that faces away from the display panel.

[0010] In one possible implementation of the first aspect, the thickness of the side decorative ink is greater than the thickness of the side light-shielding ink in a direction parallel to the plane of the display panel.

[0011] In one possible implementation of the first aspect, the decorative film overlaps with the side-shielding ink in a direction parallel to the plane of the display panel.

[0012] In one possible implementation of the first aspect, the surface of the side-shielding ink facing away from the display panel is located on the side of the decorative film facing away from the display panel.

[0013] In one possible implementation of the first aspect, the side-shielding ink is black ink.

[0014] Secondly, embodiments of this application also provide a method for manufacturing a display module, comprising: Get the display panel; A decorative film is provided on the light-emitting side of the display panel, and the decorative film includes splicing position information; Based on the splicing position information, a splicing preview is performed on at least two display panels with decorative films. Based on the splicing preview results, determine whether the splicing misalignment is acceptable; Based on the acceptable splicing misalignment, light-shielding ink is transferred to the outer periphery of the display panel; Pad-printed side decorative ink; wherein, along a direction parallel to the plane of the display panel, the side decorative ink and the side light-blocking ink at least partially overlap; the decorative film includes a first portion, the first portion being adjacent to the side light-blocking ink, and the color of the first portion corresponding to the color of the side decorative ink.

[0015] In one possible implementation of the second aspect, the step of performing a splicing preview of at least two display panels with decorative films based on the splicing position information includes: According to the preset sorting, based on the splicing position information, at least two display panels with decorative films are pre-spliced. Images are captured from at least two display panels with decorative films that have been spliced ​​together to obtain a splicing preview result.

[0016] In one possible implementation of the second aspect, determining whether the splicing misalignment is acceptable based on the splicing preview result includes: Based on the splicing preview results, the splicing misalignment amount is obtained; Determine whether the splicing misalignment amount meets a preset condition, wherein the preset condition is that the splicing misalignment amount δ satisfies: δ≤2 L tan(α / 2), where α is the angular threshold of the distance that the human eye can distinguish; When the splicing misalignment amount meets the preset conditions, the splicing misalignment amount is determined to be qualified.

[0017] One possible implementation of the second aspect also includes: If the splicing misalignment is not up to standard, the decorative film is removed, and the step "setting a decorative film on the light-emitting side of the display panel, the decorative film including splicing position information" is repeated.

[0018] In one possible implementation of the second aspect, the provision of a decorative film on the light-emitting side of the display panel includes: Obtain a decorative initial film, the decorative initial film comprising a target portion and a portion to be removed; Remove the portion to be removed from the initial decorative film and retain the target portion to obtain the decorative film; The decorative film is attached to the light-emitting side of the display panel; The target portion includes an edge portion, which is adjacent to the portion to be removed, and the color of the portion to be removed is the same as the color of the edge portion.

[0019] In one possible implementation of the second aspect, the pattern of the portion to be removed is an extension of the pattern of the target portion.

[0020] Thirdly, embodiments of this application also provide a display device, the display device including a display module; wherein the display module is the display module provided in the first aspect, and / or the display module is prepared by the method provided in the second aspect.

[0021] The display module provided in this application embodiment can effectively prevent light leakage by setting side-shielding ink on the outer periphery of the display panel; the side-decorative ink can reduce the thickness ratio of the side-shielding ink by setting side-decorative ink on the outer periphery of the side-shielding ink; the first part of the decorative film corresponds to the same color as the side-decorative ink, which can further weaken the presence of the side-shielding ink, that is, weaken the presence of the black border, thereby improving the display and decorative effect of the display module. Attached Figure Description

[0022] 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.

[0023] Figure 1 This is a schematic diagram of a display module in related technologies; Figure 2 This is a schematic diagram of a display module provided in an embodiment of this application; Figure 3 An embodiment provided in this application Figure 2 A partial cross-sectional view of AA in the middle; Figure 4 This is a schematic diagram of a display module provided in an embodiment of this application; Figure 5 This is a schematic diagram of a display module provided in an embodiment of this application; Figure 6 An embodiment provided in this application Figure 5 A partial cross-sectional view of BB in the middle; Figure 7 An embodiment provided in this application Figure 2 A partial cross-sectional view of AA in the middle; Figure 8 An embodiment provided in this application Figure 2 A partial cross-sectional view of AA in the middle; Figure 9 An embodiment provided in this application Figure 5 A partial cross-sectional view of BB in the middle; Figure 10 This is a schematic diagram of the splicing of display modules in related technologies; Figure 11This is a schematic diagram of a display module splicing provided in an embodiment of this application; Figure 12 A schematic diagram of a decorative initial film provided in an embodiment of this application; Figure 13 This is a schematic diagram illustrating the effect of a single ink pad printing process provided in an embodiment of this application. Figure 14 This is a schematic diagram illustrating the effect of multiple ink pad printing provided in an embodiment of this application; Figure 15 This is a schematic diagram illustrating a method for manufacturing a display module according to an embodiment of this application; Figure 16 A schematic diagram of a display device provided in an embodiment of this application; Figure 17 This is a schematic diagram of a display device provided in an embodiment of this application.

[0024] Label Explanation 100. Display module; 110. Display panel; 111. Substrate; 112. Array substrate; 113. Light-emitting layer; 101. Decorative film; 102. Side light-shielding ink; 103. Side decorative ink; 104. Protective film. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] 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,” “the,” and “the” 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.

[0028] 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, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0029] like Figure 2 and Figure 3As shown, in order to reduce the presence of the black border of the decorative screen, this application embodiment provides a display module 100. The display module 100 includes: a display panel 110, a decorative film 101, a side light-blocking ink 102, and a side decorative ink 103.

[0030] The decorative film 101 is located on the light-emitting side of the display panel 110. The decorative film 101 is used for decorative display when the display module 100 is in a screen-off state. Specifically, the decorative film 101 can achieve various appearance effects through processes such as printing and texture etching. The appearance style of the decorative film 101 can be determined based on the needs of the actual application scenario. For example, the graphic of the decorative film 101 can be similar to or identical to the background wall. Taking a wood grain pattern as an example, the decorative film 101 can have a wood grain pattern consistent with the background wall.

[0031] The side-shielding ink 102 is located on the outer periphery of the display panel 110 and overlaps with the display panel 110 along a direction parallel to the plane of the display panel 110. The side-shielding ink 102 is used to prevent light leakage from the sides of the display panel 110. The side-shielding ink 102 includes a light-shielding material, for example, the side-shielding ink 102 is black ink. In one possible implementation, the light-shielding ink can be formed by providing a light-shielding material on the target sidewall of the display area of ​​the display panel 110. Taking a rectangular splicing panel as an example, the target sidewall can be the four sidewalls of the display panel 110, thereby preventing side light leakage of the display panel 110 from all directions.

[0032] like Figure 2 As shown in Figure 3, the side decorative ink 103 is located on the side of the side light-shielding ink 102 away from the display panel 110, and at least partially overlaps with the side light-shielding ink 102 along a direction parallel to the plane of the display panel 110. Since the side decorative ink 103 is disposed on the outer periphery of the side light-shielding ink 102, when the display module 100 is on or off, the side decorative ink 103 weakens the presence of the side light-shielding ink 102, thereby reducing the visual impact of the black border.

[0033] like Figure 3 As shown, in one possible implementation, along the arrangement direction of the display panel 110 and the side light-shielding ink 102, the thickness of the side decorative ink 103 is greater than or equal to that of the side light-shielding ink 102. In this implementation, having the thickness of the side decorative ink 103 greater than or equal to that of the side light-shielding ink 102 helps to reduce the thickness of the side light-shielding ink 102 and increase the thickness of the side decorative ink 103, thereby weakening the presence of the side light-shielding ink 102.

[0034] The decorative film 101 includes a first portion A1, which is adjacent to the side-side light-shielding ink 102. The color of the first portion A1 corresponds to the color of the side-side decorative ink 103. The first portion A1 is the part of the decorative film 101 adjacent to the side-side light-shielding ink 102. For example, along a direction perpendicular to the plane of the display panel 110, the projection of the side-side light-shielding ink 102 is a first rectangular frame, and the projection of the first portion is a second rectangular frame, with the first and second rectangular frames adjacent to each other. The first portion A1 corresponding to the color of the side-side decorative ink 103 includes: along the arrangement direction of the first portion, the side-side light-shielding ink 102, and the side-side decorative ink 103, the color of the corresponding position of the first portion A1 and the side-side decorative ink 103 is the same. For example, as... Figure 4 As shown, the first part, the side-shielding ink 102, and the side-decorative ink 103 are arranged along the first direction X. A local area of ​​the first part corresponds to a local area of ​​the side-decorative ink, and both local areas are located on a straight line parallel to the first direction and are the same color; for example, as... Figure 4 As shown, the color of the first part A1 corresponds to the color of the side decorative ink 103 at a1, a2 and a3 respectively.

[0035] In this embodiment, the side-shielding ink 102 provided on the outer periphery of the display panel 110 can effectively prevent light leakage; the side-decorative ink 103 provided on the outer periphery of the side-shielding ink 102 can reduce the thickness ratio of the light-shielding ink; the first part of the decorative film 101 corresponds to the same color as the side-decorative ink 103, which can further weaken the presence of the side-shielding ink 102, that is, weaken the presence of the black border, thereby improving the display and decorative effect of the display module 100.

[0036] like Figure 3 As shown, in one embodiment of this application, the display panel 110 includes a substrate 111, an array substrate 112, and a light-emitting layer 113; the array substrate 112 is located on one side of the substrate 111, and the light-emitting layer 113 is located on the side of the array substrate 112 facing away from the substrate 111. Taking an LED display panel as an example, a pixel circuit is disposed in the array substrate 112, and the pixel circuit is electrically connected to the light-emitting device in the light-emitting layer 113. Along the stacking direction of the display panel 110 and the decorative film 101, the distance between the surface of the side-side light-shielding ink 102 facing away from the display panel 110 and the substrate 111 is a first distance, and the distance between the surface of the side-side decorative ink 103 facing away from the display panel 110 and the substrate 111 is a second distance. The first distance and the second distance are equal.

[0037] In this embodiment, the side-shielding ink 102 includes a first surface, which is parallel to the plane of the display panel 110 and located on the side of the side-shielding ink 102 facing away from the substrate 111. The distance between the first surface of the side-shielding ink 102 and the substrate 111 along a direction perpendicular to the plane of the display panel 110 is a first distance. The side-decorative ink 103 includes a first surface, which is parallel to the plane of the display panel 110 and located on the side of the side-decorative ink 103 facing away from the substrate 111. The distance between the first surface of the side-decorative ink 103 and the substrate 111 along a direction perpendicular to the plane of the display panel 110 is a second distance.

[0038] The fact that the first and second distances are equal means that on the light-emitting side of the display module 100, the side decorative ink 103 and the side light-shielding ink 102 are flush. Therefore, the side light-shielding ink 102 can effectively prevent light leakage and helps to make the surface of the light-emitting side of the display module 100 flat. The flatness of the surface of the light-emitting side of the display module 100 helps to improve the display effect.

[0039] Combination Figure 5 and Figure 6 In one embodiment of this application, the display panel 110 includes a substrate 111. Along the stacking direction of the display panel 110 and the decorative film 101, the distance between the side light-shielding ink 102 and the substrate 111 away from the surface of the display panel 110 is a first distance, and the distance between the side decorative ink 103 and the substrate 111 away from the surface of the display panel 110 is a second distance. The first distance is less than the second distance.

[0040] In this embodiment, the first distance is less than the second distance, meaning that along the direction perpendicular to the plane of the display panel 110, the height of the side decorative ink 103 is greater than that of the side light-shielding ink 102. Due to the limitations of the manufacturing process of the side decorative ink 103, the greater height of the side decorative ink 103 compared to the side light-shielding ink 102 facilitates the coverage of at least a portion of the first surface of the side light-shielding ink 102 by the side decorative ink 103. This coverage of at least a portion of the first surface of the side light-shielding ink 102 further reduces the visible width of the side light-shielding ink 102, thereby further visually weakening the presence of the black border in the display module 100.

[0041] like Figure 6 As shown, in one embodiment of this application, along the stacking direction of the display panel 110 and the decorative film 101, the side decorative ink 103 covers the side light-shielding ink 102, and the surface of the side decorative ink 103 facing away from the display panel 110 is located on the side of the side light-shielding ink 102 away from the display panel 110.

[0042] In this embodiment, on the light-emitting side of the display module 100, the side decorative ink 103 covers the side light-shielding ink 102. Therefore, on the light-emitting side of the display module 100, the side light-shielding ink 102 is invisible, and the side light-shielding ink 102 is visually eliminated, that is, the black border is eliminated.

[0043] In one embodiment of this application, the pattern of the first part is connected to the surface pattern of the side decorative ink 103 that is opposite to the display panel 110. Here, pattern connection means that the patterns of the two can be continuously matched and can form a complete pattern as a whole, thereby further weakening the visual presence of the side light-blocking ink 102.

[0044] In one embodiment of this application, the thickness of the side decorative ink 103 is greater than the thickness of the side light-shielding ink 102 along a direction parallel to the plane of the display panel 110. The greater thickness of the side decorative ink 103 compared to the side light-shielding ink 102 facilitates reducing the thickness of the side light-shielding ink 102 and increasing the thickness of the side decorative ink 103, thereby weakening the presence of the side light-shielding ink 102.

[0045] In one embodiment of this application, the decorative film 101 overlaps with the side-shielding ink 102 along a direction parallel to the plane of the display panel 110. In this embodiment, the overlapping of the decorative film 101 and the side-shielding ink 102 provides a shielding effect on the sidewalls of the decorative film 101, thereby preventing light from leaking out from the sidewalls of the decorative film 101.

[0046] like Figure 6 As shown, in one embodiment of this application, the surface of the side-shielding ink 102 that is away from the display panel 110 is located on the side of the decorative film 101 that is away from the display panel 110.

[0047] In this embodiment, on the light-emitting side of the display module 100, the surface of the side-shielding ink 102 is higher than the surface of the decorative film 101. This ensures that the light source does not leak out from the side wall of the decorative film 101, thereby preventing the problem of side leakage.

[0048] like Figure 7 As shown, in one embodiment of this application, the display module 100 further includes a protective film 104, which is located on the side of the decorative film 101 opposite to the display panel 110. The protective film 104 is used to protect the display module 100.

[0049] like Figure 6 or Figure 7 As shown, in one possible implementation, the surface of the protective film 104 away from the display panel 110 is flush with the first surface of the side decorative ink 103.

[0050] In this implementation, the surface of the protective film 104 furthest from the display panel 110 is flush with the first surface of the side decorative ink 103. During the process, the protective film 104 can be applied first, and then the side decorative ink 103 can be formed. Therefore, during the formation of the side decorative ink 103, the protective film 104 can protect the decorative film 101.

[0051] like Figure 6 As shown, in one possible implementation, the side decorative ink 103 covers the side light-blocking ink 102. This design eliminates the presence of the side light-blocking ink 102.

[0052] Or, such as Figure 7 As shown, in one possible implementation, the surface of the protective film 104 away from the display panel 110, the first surface of the side-shielding ink 102, and the first surface of the side-decorative ink 103 are flush with each other. This design can effectively prevent light leakage from the sidewalls of the protective film 104.

[0053] like Figure 8 or Figure 9 In one possible implementation, along the stacking direction of the display panel 110 and the decorative film 101, the protective film 104 covers the decorative film 101, the side light-blocking ink 102, and the side decorative ink 103.

[0054] In this implementation, the protective film 104 covers the decorative film 101, the side light-blocking ink 102, and the side decorative ink 103, and can protect the display module 100 in all directions. That is, the protective film 104 protects the decorative film 101, the side light-blocking ink 102, and the side decorative ink 103.

[0055] like Figure 8 As shown, in one possible implementation, the surface of the decorative film 101 facing away from the display panel 110, the first surface of the side-shielding ink 102, and the first surface of the side-decorative ink 103 are flush with each other. Alternatively, as... Figure 9 As shown, in one possible implementation, the first surface of the side decorative ink 103 is located on the side of the side light-shielding ink 102 away from the first surface of the side light-shielding ink 102, and the side decorative ink 103 covers the side light-shielding ink 102 along the stacking direction of the display panel 110 and the decorative film 101.

[0056] The display module 100 provided in this application embodiment utilizes side decorative ink 103 to reduce the width ratio of the black border in the entire display module 100, thereby visually weakening the presence of the black border. The side light-blocking ink 102 in the display module 100 effectively prevents light leakage from side viewing angles, and the side decorative ink 103 weakens the presence of the black border caused by the side light-blocking ink 102, thereby improving both display and decorative effects, and enhancing the user's viewing experience.

[0057] In the process of applying decorative film during the manufacturing of decorative screens, the decorative film needs to be trimmed. This trimming can cause misalignment when the decorative screens are spliced ​​together, and excessive misalignment can lead to poor display quality.

[0058] In related technologies, the misalignment difference after splicing decorative screens is due to the following: to ensure the film application effect, the original size of the decorative film is larger than the actual size required by the decorative screen. During film application, the original decorative film needs to be trimmed and then applied. After film application, the sides are sealed with black ink to prevent light leakage, thus obtaining a single decorative screen. Multiple decorative screens are then spliced ​​together in the application scenario to obtain a spliced ​​decorative screen. However, as... Figure 10 As shown, during the splicing and installation process, the individual decorative screens are randomly spliced ​​and installed. This random splicing and installation does not take into account the connection of the decorative film in adjacent decorative screens, which will further increase the misalignment difference.

[0059] This application also provides a method for manufacturing a display module. The method includes: S100, obtain the display panel.

[0060] In the S100, a robotic arm can be used to pick up the display panel from its storage location and move it to the target platform, or a continuous conveyor system, such as a conveyor belt, can be used to transport the display panel to the target platform. The target platform refers to the worktable used for applying the decorative film.

[0061] S200 has a decorative film on the light-emitting side of the display panel, and the decorative film includes splicing position information.

[0062] In step S200, an optical adhesive, such as pressure-sensitive adhesive, can be used to attach the decorative film to the light-emitting side of the display panel. Before attaching the decorative film, the splicing position of the decorative film can be encoded to obtain splicing position information. The splicing position information in the decorative film is used to indicate the splicing position or splicing order, thereby avoiding the problem of increased misalignment caused by random splicing. The splicing position information can be represented in the form of numerical codes, alphanumeric codes, graphic indicators, text indicators, coded information, etc. Based on the splicing position information, the target splicing position of the display panel where the decorative film is located can be obtained. During the splicing installation process, the display panel is installed to the target splicing position. Since the target splicing position of the display panel is designed during the design phase, the problem of size and graphic style mismatch during random splicing is avoided, thereby improving the uniformity of the splicing effect. Uniformity includes the complete connection of patterns, alignment of splicing misalignment, and color coordination. For example, such as Figure 11 As shown in the design, the decorative film is coded as 1-4 and spliced ​​sequentially, and 5-8 are spliced ​​sequentially along the bottom. Therefore, during splicing and installation, the decorative film is also spliced ​​in this order, thus avoiding the problem of poor splicing uniformity caused by random splicing.

[0063] To ensure proper adhesion of the decorative film, its initial size must be larger than the target size. The target size refers to the final size of the decorative film after adhesion. In one possible implementation, placing the decorative film on the light-emitting side of the display panel includes: S210, Obtain the initial decorative film.

[0064] like Figure 12 As shown, the initial decorative film 1011 includes a target portion B1 and a portion to be removed B2. The initial decorative film refers to the initial decorative film before it is cut. The size of the initial decorative film is the aforementioned initial size. The target portion refers to the portion that needs to be retained, that is, the decorative film after it has been applied. The portion to be removed refers to the portion of the decorative film that needs to be cut off.

[0065] The target portion B1 includes an edge portion, which is adjacent to the portion B2 to be removed. The color of the portion to be removed B2 corresponds to the color of the edge portion.

[0066] During the cutting process, due to process errors, the actual part removed may not be completely identical to the part to be removed. However, the color of the edge corresponds to the color of the part to be removed, which can compensate for the color deviation caused by process errors, thereby improving the uniformity of the edge color of the decorative film that is actually retained.

[0067] like Figure 12 As shown, in one possible implementation, the pattern of the portion B2 to be removed is an extension of the pattern of the target portion B1.

[0068] In this implementation, the pattern of the part B2 to be removed is an extension of the pattern of the target part B1, which can improve the smoothness and continuity of curved or complex patterns after splicing.

[0069] like Figure 12 As shown, in one possible implementation, the extension width h of the pattern of the portion to be removed is greater than or equal to 50 μm along the first direction. The pattern of the portion to be removed is an extension of the pattern of the target portion, and the extension width refers to the length of the pattern of the portion to be removed in the first direction relative to the pattern of the target portion. An extension width greater than or equal to 50 μm can compensate for the consumption of decorative film during the application process, thereby achieving the integrity and coordination of the overall decorative pattern after splicing and installation.

[0070] S220, remove the portion to be removed from the initial decorative film and retain the target portion to obtain the decorative film.

[0071] In step S220, the portion of the initial decorative film to be removed is removed by cutting. Cutting can be done by mechanical cutting or laser cutting. The portion remaining after the initial decorative film is removed is the target portion, which is the decorative film.

[0072] S230, the decorative film is attached to the light-emitting side of the display panel.

[0073] In step S230, an optical adhesive is used to attach a decorative film to the light-emitting side of the display panel. For example, a pressure-sensitive adhesive is used to attach the decorative film to the light-emitting side of the display panel.

[0074] S300 performs splicing preview on at least two display panels with decorative films based on splicing position information.

[0075] In step S300, based on the splicing position information, multiple display panels with decorative films applied are pre-splittered according to a preset splicing order. Specifically, in one possible implementation, pre-splittering at least two display panels with decorative films based on the splicing position information includes: S310, according to a preset order, pre-splicing at least two display panels with decorative films based on splicing position information.

[0076] S320 acquires images of at least two display panels with decorative films that have been spliced ​​together to obtain a splicing preview result.

[0077] In this implementation, the display panels are placed at their target positions according to a preset splicing order and the splicing position information of each display panel. After all display panels are spliced ​​together, the spliced ​​image is acquired to obtain a splicing preview result. The splicing misalignment amount is acquired from the splicing preview result, and then the actual size of the splicing misalignment amount is obtained based on the imaging parameters of the image acquisition device. The specific implementation method for obtaining the actual size of the splicing misalignment amount based on the imaging parameters of the image acquisition device and the splicing preview result can refer to relevant practices in the prior art, and will not be elaborated here.

[0078] In one possible implementation, previewing the splicing of at least two display panels with decorative films based on splicing position information includes: S301, acquire images of the target display panel. The target display panel is a display panel required to form the splicing screen and has a decorative film. The number of target display panels is greater than or equal to 2.

[0079] S302, based on the splicing position information and the image of the target display panel, performs splicing simulation to obtain the splicing preview result.

[0080] Following a preset splicing sequence, and based on the splicing position information of each target display panel, a splicing simulation is performed using electronic devices (such as a computer) to obtain a splicing preview result. The actual value of the splicing misalignment is then obtained based on the parameter information of the image acquisition device.

[0081] The splicing misalignment amount in the simulation results is not consistent with the actual value of the splicing misalignment amount. However, based on the parameters of the image acquisition device, the imaging size of the decorative film in the image can be obtained. Based on the actual size of the decorative film, the relationship between the actual size of the decorative film and the imaging size can be calculated. Using the relationship between the actual size of the decorative film and the imaging size, the true value of the misalignment amount can be calculated based on the misalignment amount in the simulated splicing.

[0082] S400, based on the splicing preview results, determines whether the splicing misalignment is acceptable.

[0083] The splicing misalignment amount can be obtained based on the splicing preview results. By judging whether the splicing misalignment amount meets the preset conditions, it is determined whether the splicing misalignment amount is qualified.

[0084] In one possible implementation, determining whether the splicing misalignment is acceptable based on the splicing preview results includes: S410: Based on the splicing preview results, obtain the splicing misalignment amount.

[0085] Based on the splicing preview results, the actual value of the splicing misalignment can be inferred. The specific inference process can be found in the aforementioned embodiments, and will not be elaborated upon here.

[0086] S420, Determine whether the width of the splicing misalignment meets the preset condition. The preset condition is that the width δ of the splicing misalignment satisfies: δ≤2 L tan(α / 2), where L is the viewing distance and α is the angular threshold of the distance that the human eye can distinguish.

[0087] The value of L can be determined based on actual user needs or application scenarios, or it can be determined based on big data statistics. For example, the optimal viewing distance for the human eye (the average distance from the display panel to common viewing positions) can be determined based on the application scenario of the video wall, and this value can be used as the value of L. Alternatively, the minimum viewing distance for the human eye can be determined based on the application scenario, and this minimum value can be used as the value of L.

[0088] In one possible implementation, α takes the value of 5''-15'' (inclusive of endpoints), for example, α is 10''.

[0089] Taking α as 10'' as an example, the maximum allowed value of δ can be found in Table 1.

[0090] Table 1 S430: When the splicing misalignment meets the preset conditions, the splicing misalignment is determined to be qualified.

[0091] When the splicing misalignment meets the preset conditions, the splicing misalignment is deemed qualified.

[0092] Conversely, if the splicing misalignment does not meet the preset conditions, the splicing misalignment is determined to be unqualified.

[0093] S500, based on the qualified splicing misalignment amount, uses side-shielding ink to be transferred on the outer periphery of the display panel.

[0094] If the misalignment during splicing is within acceptable limits, it means that the film applied to the display panel (i.e., the installation film) is acceptable, and therefore, the process can proceed to the next stage.

[0095] When the misalignment during splicing is within acceptable limits, side-shielding ink is formed on the outer periphery of the display panel using a pad printing method.

[0096] S600, pad printing side decorative ink. Wherein, along a direction parallel to the plane of the display panel, the side decorative ink and the side light-blocking ink at least partially overlap. The decorative film includes a first portion adjacent to the side light-blocking ink, the color of the first portion corresponding to the color of the side decorative ink.

[0097] After applying the side-shielding ink, a side-decorative ink is then formed using pad printing, thereby minimizing the presence of the side-shielding ink. For example... Figure 13 As shown, the material for the side decorative ink can be a mixed ink, applied in a single pad printing process; or it can be as follows: Figure 14 As shown, the side decorative ink is made of multiple CMYK inks, applied through multiple pad printing processes. The ink color selection and printing points must be consistent with the colors on both sides of the seam; this is used to weaken and connect the visual misalignment of the decorative patterns at the seam.

[0098] In one possible implementation, the method also includes: S700, if the splicing misalignment is not up to standard, remove the decorative film and repeat the step "Set a decorative film on the light-emitting side of the display panel, the decorative film including splicing position information".

[0099] In this implementation, an unacceptable misalignment means that the pattern continuity of the decorative film is not ideal, thus requiring rework of the decorative film application process on the display panel. Rework methods include: reapplying the decorative film, or obtaining a new initial decorative film, removing the portion to be removed, and then reapplying the decorative film.

[0100] To better understand the preparation method provided in the embodiments of this application, the following will be used as an example. Figure 15 Let's take an example and explain in detail.

[0101] like Figure 15 As shown, the initial membrane is encoded based on its preparation process. Decorative initial membranes are typically cut from a single large membrane; therefore, they can be encoded based on their position within the large membrane to obtain more accurate splicing position information.

[0102] For each initial film, the color and pattern of the target portion at the edge are stretched to the portion to be removed, thereby obtaining the decorative initial film.

[0103] The display panel is then coated with a film based on the initial decorative film. The specific coating process can be found in the relevant procedures described in the preceding embodiments, and will not be repeated here.

[0104] After the screen protector is applied, a photo of the display panel needs to be taken. Using the photo and a computer, the screen protector is then simulated according to the splicing position information to obtain a splicing preview result.

[0105] The splicing misalignment is measured based on the splicing preview results. The specific calculation method for the splicing misalignment can be found in the relevant processes described in the foregoing method embodiments, and will not be repeated here.

[0106] Determine if the splicing misalignment satisfies: δ≤2 L tan(10'' / 2). If the condition is not met, the film needs to be reapplied.

[0107] When the conditions are met, side-shielding ink transfer printing and side-decorative ink transfer printing are performed.

[0108] Finally, during the splicing and installation process, the width of the splice seam needs to be controlled to be less than 20µm.

[0109] In one possible implementation, to further enhance the display and decorative effects, after the splicing and installation are completed, the following step is included: applying decorative ink to the splicing seams. The color of the decorative ink at the splicing seams corresponds to the same color as the decorative ink on both sides. The pattern of the decorative ink at the splicing seams corresponds to and connects with the colors of the decorative ink on both sides.

[0110] Applying decorative ink to the seams can visually eliminate their presence, thereby further improving the display effect.

[0111] The method for preparing the display module provided in this application can obtain the display module provided in any of the foregoing embodiments. The display module obtained using the preparation method provided in this application has good display and user experience. Specifically, setting side-shielding ink on the outer periphery of the display panel can effectively prevent light leakage; setting side-decorative ink on the outer periphery of the side-shielding ink can reduce the thickness ratio of the light-shielding ink; the first part of the decorative film corresponds to the same color as the side-decorative ink, which can further weaken the presence of the side-shielding ink, that is, weaken the presence of the black border, thereby improving the display and decorative effects of the display module.

[0112] like Figure 16 or Figure 17 As shown in the illustration, this application also provides a display device, which includes a display module. The display module is the same as that provided in any of the foregoing embodiments, and / or the display module is prepared using the method provided in any of the foregoing embodiments.

[0113] The display module provided in this application embodiment can be as follows: Figure 16 As shown in Figure 17, the display modules can be used individually to form a single-screen display device; alternatively, multiple display modules can be spliced ​​together to form a spliced ​​display device. Therefore, the display device provided in this application embodiment can be as follows: Figure 16 The single-screen display device shown can also be, for example, Figure 17 The splicing display device shown is described. The display device provided in this application embodiment has a display module with excellent display and decorative effects. Specifically, the side-shielding ink in the display module can effectively prevent side light leakage, and the side-decorative ink can effectively weaken the presence of the side-shielding ink, thereby improving the display and decorative effects.

[0114] The embodiments of this application also need to be explained as follows: (1) The accompanying drawings corresponding to the embodiments of this application only involve the structures involved in the embodiments of this application. Other structures can be referred to the general design.

[0115] (2) For clarity, the thickness of layers or regions is enlarged or reduced in the drawings used to describe embodiments of this application, i.e., these drawings are not drawn to actual scale. It is understood that when an element such as a layer, film, region or substrate is referred to as being "above" or "below" another element, the element may be "directly" located "above" or "below" the other element or there may be intermediate elements.

[0116] (3) Where there is no conflict, the embodiments of this application and the features in the embodiments can be combined with each other to obtain new embodiments. The new embodiments still fall within the scope of disclosure of the embodiments of this application, and the new embodiments can provide a basis for the protection scope that this application wants to achieve.

[0117] (4) For the same or similar parts between the various embodiments or implementations in this specification, please refer to each other. In particular, for the device embodiments and terminal embodiments, since they are basically similar to the method embodiments or implementations, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiments.

[0118] The above description is merely a specific implementation of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed herein should be included within the protection scope of the embodiments of this application.

Claims

1. A display module, characterized in that, include: Display panel; Decorative film, located on the light-emitting side of the display panel; Side-shielding ink is located on the outer periphery of the display panel and overlaps with the display panel along a direction parallel to the plane of the display panel. The side decorative ink is located on the side of the side light-shielding ink away from the display panel, and in a direction parallel to the plane of the display panel, the side decorative ink and the side light-shielding ink at least partially overlap; The decorative film includes a first part, which is adjacent to the side-shielding ink, and the color of the first part is the same as the color of the side-decorative ink.

2. The display module according to claim 1, characterized in that, The display panel includes a substrate. Along the stacking direction of the display panel and the decorative film, the distance between the side-side light-shielding ink and the substrate away from the surface of the display panel is a first distance, and the distance between the side-side decorative ink and the substrate away from the surface of the display panel is a second distance; the first distance and the second distance are equal.

3. The display module according to claim 1, characterized in that, The display panel includes a substrate. Along the stacking direction of the display panel and the decorative film, the distance between the side-side light-shielding ink and the substrate away from the surface of the display panel is a first distance, and the distance between the side-side decorative ink and the substrate away from the surface of the display panel is a second distance; the first distance is less than the second distance.

4. The display module according to claim 1, characterized in that, Along the stacking direction of the display panel and the decorative film, the side decorative ink covers the side light-blocking ink, and the surface of the side decorative ink facing away from the display panel is located on the side of the side light-blocking ink away from the display panel.

5. The display module according to claim 1, characterized in that, The pattern in the first part is aligned with the surface pattern of the side decorative ink that is opposite to the display panel.

6. The display module according to claim 1, characterized in that, Along a direction parallel to the plane of the display panel, the thickness of the side decorative ink is greater than the thickness of the side light-blocking ink.

7. The display module according to claim 1, characterized in that, Along a direction parallel to the plane of the display panel, the decorative film overlaps with the side light-blocking ink.

8. The display module according to claim 1, characterized in that, The side-shielding ink is located on the side of the decorative film that is opposite to the display panel.

9. The display module according to claim 1, characterized in that, The side-shielding ink is black ink.

10. A method for manufacturing a display module, characterized in that, include: Get the display panel; A decorative film is provided on the light-emitting side of the display panel, and the decorative film includes splicing position information; Based on the splicing position information, a splicing preview is performed on at least two display panels with decorative films. Based on the splicing preview results, determine whether the splicing misalignment is acceptable; Based on the acceptable splicing misalignment, light-shielding ink is transferred to the outer periphery of the display panel; Pad-printed side decorative ink; wherein, along a direction parallel to the plane of the display panel, the side decorative ink and the side light-blocking ink at least partially overlap; the decorative film includes a first portion, the first portion being adjacent to the side light-blocking ink, and the color of the first portion corresponding to the color of the side decorative ink.

11. The method according to claim 10, characterized in that, The step of performing a splicing preview of at least two display panels with decorative films based on the splicing position information includes: According to the preset sorting, based on the splicing position information, at least two display panels with decorative films are pre-spliced. Images are captured from at least two display panels with decorative films that have been spliced ​​together to obtain a splicing preview result.

12. The method according to claim 10, characterized in that, The process of determining whether the splicing misalignment is acceptable based on the splicing preview results includes: Based on the splicing preview results, the splicing misalignment amount is obtained; Determine whether the splicing misalignment amount meets a preset condition, wherein the preset condition is that the splicing misalignment amount δ satisfies: δ≤2 L tan(α / 2), where α is the angular threshold of the distance that the human eye can distinguish; When the splicing misalignment amount meets the preset conditions, the splicing misalignment amount is determined to be qualified.

13. The method according to claim 10, characterized in that, Also includes: If the splicing misalignment is not up to standard, the decorative film is removed, and the step "Setting a decorative film on the light-emitting side of the display panel, the decorative film including splicing position information" is repeated.

14. The method according to claim 10, characterized in that, The provision of a decorative film on the light-emitting side of the display panel includes: Obtain a decorative initial film, the decorative initial film comprising a target portion and a portion to be removed; Remove the portion to be removed from the initial decorative film and retain the target portion to obtain the decorative film; The decorative film is attached to the light-emitting side of the display panel; The target portion includes an edge portion, which is adjacent to the portion to be removed, and the color of the portion to be removed is the same as the color of the edge portion.

15. The method according to claim 14, characterized in that, The pattern of the portion to be removed is an extension of the pattern of the target portion.

16. A display device, characterized in that, The display device includes a display module; wherein the display module is the display module according to any one of claims 1-9, and / or the display module is prepared by the method according to any one of claims 10-15.

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