Display module, tiled screen, and display device

Abstract

A display module (10), a tiled screen (30), and a display device (40). The display module (10) comprises a backlight assembly (101). The backlight assembly (101) comprises a middle frame (102), a reflective structure (103), and a light source structure (104). The light source structure (104) comprises a light source part (105) and a support plate (106). The reflective structure (103) comprises a first portion (1031) and a second portion (1032). The second portion (1032) is connected to the middle frame (102), and the first portion (1031) is connected to the support plate (106) so as to reflect light emitted by the light source part (105). The second portion (1032) of the reflective structure (103) comprises a first reflective sheet (1033), a second reflective sheet (1034), and a third reflective sheet (1035) which are stacked. A main body portion (1034a) of the second reflective sheet (1034) is arranged in an accommodating space defined by the first reflective sheet (1033) and the third reflective sheet (1035), and can move relative to the first reflective sheet (1033). Because the second portion (1032) of the reflective structure (103) is of a stacked three-layer structure, and the main body portion (1034a) of the second reflective sheet (1034) can move relative to the first reflective sheet (1033), the image quality of the periphery region of the display module (10) can be adjusted without disassembling the display module (10), thereby greatly reducing the repair rate of the display module (10).

Description

Display module, splicing screen and display device

[0001] This application claims priority to Chinese Patent Application No. 202310927451.9 filed on July 26, 2023, and the contents of the above-mentioned Chinese patent application disclosure are hereby incorporated by reference in their entirety as a part of this application. Technical Field

[0002] Embodiments of the present disclosure relate to a display module, a spliced ​​screen, and a display device. Background Art

[0003] The application of display devices formed by splicing screens is becoming more and more widespread. Each splicing screen is usually formed by splicing together multiple independent display modules. The application scenarios of display devices formed by splicing screens mainly include areas that require large-area displays, such as conference rooms, halls, and monitoring centers. Each display module usually includes a display component and a backlight component. The middle frame included in the backlight component is arranged on one side of the display component. The middle frame is provided with a bearing platform that can bear the display component, and a receiving area that can accommodate optical films such as light guide plates, diffuser plates, and reflective structures. The reflectivity of the reflective structure to light will directly affect the display brightness of the display device and whether there are alternating light and dark stripes around the display device when displaying. The bearing platform needs to be connected and fixed to the non-display area of ​​the display component by adhesive, and the back panel included in the backlight component can support the middle frame.

[0004] Summary of the Invention

[0005] At least one embodiment of the present disclosure provides a display module, a spliced ​​screen and a display device, wherein the second part of the reflective structure in the display module includes a first reflective sheet, a second reflective sheet and a third reflective sheet that are stacked together, the main part of the second reflective sheet is arranged in a receiving space defined by the first reflective sheet and the third reflective sheet, and the main part of the second reflective sheet can be moved relative to the first reflective sheet, so that the image quality around the display module can be adjusted without disassembling the display module, thereby significantly reducing the production efficiency and the maintenance rate of the display module.

[0006] At least one embodiment of the present disclosure provides a display module, which includes: a backlight assembly, wherein the backlight assembly includes a middle frame, a reflective structure and a light source structure, the light source structure includes a light source part and a support plate that supports the light source part; the reflective structure includes a first part parallel to a first plane on which the support plate is located, and a second part on a second plane intersecting with the first plane, the second part is connected to the middle frame, and the first part is connected to the support plate, and the reflective structure is configured to reflect light emitted by the light source part; the second part of the reflective structure includes a first reflective sheet, a second reflective sheet and a third reflective sheet that are stacked, the main part of the second reflective sheet is arranged in a receiving space defined by the first reflective sheet and the third reflective sheet, and can move relative to the first reflective sheet; the middle part of the first reflective sheet is provided with a first opening, the surface of the second reflective sheet facing the first reflective sheet has at least one first light adjustment pattern, and the main part of the second reflective sheet moves relative to the first reflective sheet so that the overlapping area of ​​the first opening and the first light adjustment pattern changes.

[0007] For example, in the display module provided in at least one embodiment of the present disclosure, the second portion of the reflective structure is tilted relative to the first portion, and the dihedral angle formed by the first plane and the second plane is in the range of (90°, 180°).

[0008] For example, in the display module provided in at least one embodiment of the present disclosure, the fourth periphery of the third reflective sheet is in contact with the first reflective sheet, and the first reflective sheet and the third reflective sheet are fixedly connected to form a fixed accommodation space.

[0009] For example, in the display module provided in at least one embodiment of the present disclosure, a second opening is provided in the peripheral portion where the four sides of the first reflective sheet and the third reflective sheet are bonded, and the size of the second opening is smaller than that of the first opening.

[0010] For example, in the display module provided in at least one embodiment of the present disclosure, the arrangement density of the second openings is greater than the arrangement density of the first openings.

[0011] For example, in the display module provided in at least one embodiment of the present disclosure, the number of the first openings and the first light adjustment patterns are the same and both are multiple, the shape of each first light adjustment pattern is the same as the shape of the first opening, and the first light adjustment patterns and the first openings correspond one to one.

[0012] For example, in the display module provided in at least one embodiment of the present disclosure, the first light adjustment pattern includes black dots.

[0013] For example, in the display module provided in at least one embodiment of the present disclosure, the second reflective sheet further includes a handle portion provided at at least one end of the main body portion, and the handle portion extends out of the accommodating space.

[0014] For example, in the display module provided in at least one embodiment of the present disclosure, a marking line is provided on the handle portion.

[0015] For example, in the display module provided in at least one embodiment of the present disclosure, the backlight assembly further includes a back panel, the back panel includes side panels and a bottom panel, the side panels are configured to support the middle frame, and the light source structure is disposed on the bottom panel.

[0016] For example, in the display module provided in at least one embodiment of the present disclosure, a groove is provided on the side panel, and the handle portion extends into the groove.

[0017] For example, in the display module provided in at least one embodiment of the present disclosure, the side panels adopt a secondary bending design, and the bending directions of the opposite side panels are the same to form a cavity between the opposite side panels.

[0018] For example, in the display module provided in at least one embodiment of the present disclosure, the edges of the middle frame away from the cavity are all outside the bent edges of the side panels, and the support points of the side panels for the middle frame are located between the middle frame and the cavity.

[0019] For example, in the display module provided in at least one embodiment of the present disclosure, the middle frame includes a main body portion, the planar shape of the main body portion is a parallelogram, the extension direction of the side panel is a first direction, the extension direction of the bottom panel is a second direction, the parallelogram includes a first side and a second side extending in the second direction and arranged opposite to each other, the middle frame also includes a first branch portion extending in the first direction and connected to an edge of the first side away from the cavity, and a second branch portion extending in a direction opposite to the first direction and connected to an edge of the second side, and the support point of the side panel for the middle frame is located on the side of the second branch portion close to the cavity.

[0020] For example, in the display module provided in at least one embodiment of the present disclosure, the side panel includes a first side panel portion and a second side panel portion that are detachably connected, and the first side panel portion and the second side panel portion are connected by screws and the second branch portion, and the first side panel portion is in contact with the middle frame to support the middle frame.

[0021] For example, in the display module provided in at least one embodiment of the present disclosure, the second side plate portion includes a bent portion bent toward one side of the cavity, and the third reflective sheet included in the reflective structure abuts against the bent portion.

[0022] For example, in the display module provided in at least one embodiment of the present disclosure, the display module further includes a diffuser plate and an optical film material stacked on one side of the parallelogram of the middle frame away from the main surface of the base plate, and a partial surface of the diffuser plate close to the main surface of the base plate is connected to the first side of the middle frame; the side surface of the optical film material is connected to the first branch portion of the middle frame via reflective glue.

[0023] For example, in the display module provided in at least one embodiment of the present disclosure, the reflective adhesive includes a fourth reflective sheet, a fifth reflective sheet and a sixth reflective sheet that are stacked together, the main portion of the fifth reflective sheet is arranged in the accommodating space defined by the fourth reflective sheet and the sixth reflective sheet, and can move relative to the fourth reflective sheet, the middle portion of the fourth reflective sheet is provided with a third opening, the surface of the fifth reflective sheet facing the fourth reflective sheet has at least one second light adjustment pattern, and the main portion of the fifth reflective sheet moves relative to the fourth reflective sheet so that the overlapping area of ​​the third opening and the second light adjustment pattern changes.

[0024] For example, in the display module provided in at least one embodiment of the present disclosure, the diameter of the third opening is between 2 cm and 6 cm.

[0025] For example, in the display module provided in at least one embodiment of the present disclosure, in the direction in which the fifth reflector moves relative to the fourth reflector, the distance between adjacent third openings is greater than the diameter of the third opening.

[0026] For example, in the display module provided in at least one embodiment of the present disclosure, the reflective adhesive is provided on both the sky side and the ground side of the display module, and the reflective adhesive located on the ground side includes the fifth reflective sheet whose surface close to the fourth reflective sheet is provided with the second light adjustment pattern.

[0027] For example, in the display module provided by at least one embodiment of the present disclosure, the second light adjustment pattern includes at least one of silver dots and black dots, and the second light adjustment pattern and the third opening have a one-to-one correspondence.

[0028] For example, in the display module provided in at least one embodiment of the present disclosure, reflective adhesive handles are provided at both ends of the fifth reflective sheet in the direction in which the fifth reflective sheet moves relative to the fourth reflective sheet, and the reflective adhesive handles extend to the outside of the middle frame.

[0029] For example, in the display module provided in at least one embodiment of the present disclosure, the four corner portions of the middle frame are connected by connectors to form a frame shape.

[0030] For example, the display module provided by at least one embodiment of the present disclosure further includes: a display component arranged on a side of the optical film away from the bottom plate, and an outer frame arranged on a side of the middle frame away from the side plate, wherein the display component and the outer frame are connected.

[0031] For example, in the display module provided in at least one embodiment of the present disclosure, the first portion of the reflective structure is a single-layer structure, and the first portion of the reflective structure and the first reflective sheet are integrally formed.

[0032] At least one embodiment of the present disclosure further provides a spliced ​​screen, which includes a plurality of connected display modules as described in any one of the above items.

[0033] At least one embodiment of the present disclosure further provides a display device, comprising any of the display modules described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, rather than limiting the present disclosure.

[0035] FIG1 is a schematic cross-sectional view of a display module according to at least one embodiment of the present disclosure;

[0036] FIG2 is a partially enlarged schematic structural diagram of the reflective structure in FIG1 ;

[0037] FIG3 is a schematic diagram of the overall planar structure of a first reflective sheet provided by at least one embodiment of the present disclosure;

[0038] FIG4 is a partial enlarged structural diagram of the first reflector in FIG3 ;

[0039] FIG5 is a schematic diagram of a planar structure of a second reflective sheet provided in at least one embodiment of the present disclosure;

[0040] FIG6 is a schematic diagram of a partial enlarged structure of the second reflector in FIG5 ;

[0041] FIG7 is a schematic diagram of a three-dimensional structure of a display device provided by at least one embodiment of the present disclosure;

[0042] FIG8 is a physical photograph of a display device provided by at least one embodiment of the present disclosure;

[0043] FIG9 is a schematic structural diagram of a first light-adjusting pattern in a second reflective sheet and a first opening in a first reflective sheet in a staggered state according to an embodiment of the present disclosure;

[0044] FIG10 is a schematic structural diagram of a first light-adjusting pattern in a second reflective sheet and a first opening in a first reflective sheet in an overlapping state, provided by an embodiment of the present disclosure;

[0045] FIG11 is a schematic diagram of light reflection corresponding to FIG9 ;

[0046] FIG12 is a schematic diagram of light reflection corresponding to FIG10 ;

[0047] FIG13 is a display image of the display device in the state shown in FIG9;

[0048] FIG14 is a display image of the display device in the state shown in FIG10;

[0049] FIG15 is a schematic cross-sectional view of a display module in which edge pixels are blocked when the middle frame is turned inward;

[0050] FIG16 is a schematic diagram of a cross-sectional structure of a display module in which edge pixels are blocked and a reflective structure is squeezed when the middle frame of the display module is turned inward;

[0051] FIG17 is a schematic cross-sectional view of a back panel and a middle frame according to at least one embodiment of the present disclosure;

[0052] FIG18 is a schematic diagram of a cross-sectional structure of a backplane provided by at least one embodiment of the present disclosure;

[0053] FIG19 is a schematic diagram of a three-dimensional structure of a middle frame provided by at least one embodiment of the present disclosure;

[0054] FIG20 is a schematic diagram of the three-dimensional structure of the corners of the dotted frame of the middle frame shown in FIG19;

[0055] FIG21 is a partially enlarged schematic diagram of the structure of a reflective adhesive provided by at least one embodiment of the present disclosure;

[0056] FIG22 is a schematic diagram of the overall planar structure of the fourth reflector in FIG21 ;

[0057] FIG23 is a schematic diagram of the enlarged structure of a portion of the fourth reflector in FIG22;

[0058] FIG24 is a schematic diagram of the overall planar structure of a fifth reflector in FIG21 ;

[0059] FIG25 is a schematic diagram of the enlarged structure of a portion of the fifth reflector in FIG24;

[0060] FIG26 is a schematic diagram of the overall planar structure of another fifth reflector in FIG21;

[0061] FIG27 is a schematic diagram of the enlarged structure of a portion of the fifth reflector in FIG26;

[0062] FIG28 is a schematic diagram of the cross-sectional structure of the sky side and the ground side of a display device provided by at least one embodiment of the present disclosure;

[0063] FIG29 is a schematic diagram showing the overlap of the third opening and the second light adjustment pattern on the ground side;

[0064] FIG30 shows the light emission amount before and after the third opening and the second light adjustment pattern on the ground side overlap;

[0065] FIG31 is a schematic diagram of the planar structure of a spliced ​​screen provided by at least one embodiment of the present disclosure; and

[0066] FIG32 is a block diagram of a display device according to at least one embodiment of the present disclosure. DETAILED DESCRIPTION

[0067] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0068] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0069] Unless otherwise defined, the features such as "parallel", "perpendicular" and "same" used in the embodiments of the present invention include the situations of "parallel", "perpendicular", "same" in a strict sense, as well as the situations of "approximately parallel", "approximately perpendicular", "approximately the same" and the like that contain a certain error. For example, the above-mentioned "approximately" may mean that the difference between the compared objects is 10% of the average value of the compared objects, or within 5%. When the number of a component or element is not specifically indicated below in the embodiments of the present invention, it means that the component or element may be one or more, or may be understood as at least one. "At least one" refers to one or more, and "multiple" refers to at least two. The "same-layer setting" in the embodiments of the present invention refers to the relationship between multiple film layers formed by the same material after the same step (for example, a one-step patterning process). The "same layer" here does not always mean that the thickness of multiple film layers is the same or the height of multiple film layers in the cross-sectional view is the same.

[0070] For display devices, display quality is one of the important parameters for evaluating the display effect of the display device. This is especially true for mid-to-high-end display devices formed by splicing multiple display modules. After the splicing screen is formed by splicing multiple display modules, the display quality of individual display modules varies, resulting in a poor overall visual effect of the spliced ​​screen. In addition, the display device often exhibits obvious alternating light and dark stripes around the periphery of the display device during display. For example, in splicing screen technology, the splicing screen is formed by splicing multiple display modules. Each display module includes a middle frame that can be made of plastic or transparent aluminum metal. After the splicing screen is used for a long time or is exposed to high temperatures, the middle frame formed of plastic material is easily oxidized, causing its color to darken. This will cause the light transmittance of the middle frame to decrease, resulting in a decrease in the peripheral brightness of the final display device, resulting in the phenomenon of a dark frame around the periphery. The middle frame formed of aluminum metal also has the problem of uneven brightness around the periphery and the brightness of the middle area. The size of the physical seam between adjacent display modules is an important physical parameter for the quality of the spliced ​​screen. In order to make the seam between adjacent display modules as small as possible, glue is usually used to connect the adjacent display modules. The main component of the glue is a transparent resin material. After long-term use, the glue is easily oxidized and the color deepens, so that the light transmittance of the glue will also be weakened, resulting in dark edge pixels on the display device during display, and also causing the seam between adjacent display modules to become larger.

[0071] At present, the application scenarios of splicing screens mainly include conference rooms, halls and monitoring centers. The display devices formed by splicing screens usually have high brightness, and the temperature of the display devices is also high during use. The large temperature difference when the display device is in working state and non-working state can easily cause the gap between adjacent structures such as the diffusion plate included in the display module to change, thereby causing the light transmittance of the edge of the display device to change, and then causing the display device to have bright lines or dark lines or light stripes and dark stripes alternating in sequence when displaying, that is, the phenomenon of alternating light and dark stripes, which makes the display effect of the display device worse. The problem of poor display effect of the above-mentioned display devices is caused by the material properties of the adhesive. The current display device cannot solve the above problem and can only be solved by disassembling and repairing the display device or replacing it. However, the cost of repairing the display device is very high and will seriously affect the brand reputation and brand image of the display device. Therefore, it is necessary to improve the structure of the current display device to enhance the market competitiveness of the display device.

[0072] The inventors of the present disclosure have noticed that it is possible to start with the design architecture of the display module. For example, the reflectivity of the reflective structure or the reflectivity of the reflective adhesive can be adjusted in a targeted manner according to the peripheral image quality when the display device is displaying. That is, a new structural design can be made for the reflective structure or the reflective adhesive so that the image quality uniformity of the display device reaches a higher level. Without disassembling the display device, the peripheral image quality of the display module included in the display device can be adjusted, which can greatly reduce the maintenance rate of the display device during the production process and the maintenance rate of the terminal product, thereby reducing the maintenance cost of the display device and improving the competitiveness of the display device. For display devices with high-standard image quality requirements, it is impossible to develop new display products independently, nor is it possible to select suitable display products through testing, which will result in market losses.

[0073] At least one embodiment of the present disclosure provides a display module, which includes: a backlight assembly, which includes a middle frame, a reflective structure and a light source structure, the light source structure includes a light source part and a support plate that supports the light source part; the reflective structure includes a first part parallel to a first plane where the support plate is located, and a second part on a second plane intersecting with the first plane, the second part is connected to the middle frame, and the first part is connected to the support plate, and the reflective structure is configured to reflect light emitted by the light source part; the second part of the reflective structure includes a first reflective sheet, a second reflective sheet and a third reflective sheet that are stacked, the main part of the second reflective sheet is arranged in a receiving space defined by the first reflective sheet and the third reflective sheet, and the main part of the second reflective sheet can be moved relative to the first reflective sheet, the middle part of the first reflective sheet is provided with a first opening, the surface of the second reflective sheet facing the first reflective sheet has at least one first light adjustment pattern, and the main part of the second reflective sheet moves relative to the first reflective sheet so that the overlapping area of ​​the first opening and the first light adjustment pattern changes. The embodiment of the present disclosure designs the second part of the reflective structure to include a first reflective sheet, a second reflective sheet and a third reflective sheet that are stacked, and provides a first opening in the middle part of the first reflective sheet, and the surface of the second reflective sheet facing the first reflective sheet has at least one first light adjustment pattern. When the user uses the display device, if dark lines, bright lines or dark frames appear on the edge of the display device, the user can make the main part of the second reflective sheet move relative to the first reflective sheet without disassembling the display device, so that the overlapping area of ​​the first opening and the first light adjustment pattern changes, thereby changing the amount of reflected light to adjust the peripheral image quality of the display device, thereby greatly reducing the probability of repairing the display device during the production process, and reducing the maintenance rate of the terminal display device, and thus reducing the overall maintenance cost of the display device to enhance the competitiveness of the display device.

[0074] For example, Figure 1 is a schematic diagram of the cross-sectional structure of a display module provided by at least one embodiment of the present disclosure, Figure 2 is a schematic diagram of the partially enlarged structure of the reflective structure in Figure 1, Figure 3 is a schematic diagram of the overall planar structure of the first reflective sheet provided by at least one embodiment of the present disclosure, Figure 4 is a schematic diagram of the partially enlarged structure of the first reflective sheet in Figure 3, Figure 5 is a schematic diagram of the planar structure of the second reflective sheet provided by at least one embodiment of the present disclosure, and Figure 6 is a schematic diagram of the partially enlarged structure of the second reflective sheet in Figure 5. Combined with Figures 1, 2, 3, 4, 5 and 6, the display module 10 includes: a backlight assembly 101, the backlight assembly 101 includes a middle frame 102, a reflective structure 103 and a light source structure 104, the light source structure 104 includes a light source portion 105 and a support plate 106 supporting the light source portion 105; the reflective structure 103 includes a first plane parallel to the first plane where the support plate 106 is located. A part 1031, and a second part 1032 on a second plane intersecting with the first plane, the first part 1031 and the second part 1032 of the reflective structure 103 are connected, the second part 1032 is connected to the middle frame 102, the first part 1031 is connected to the support plate 106, and the reflective structure 103 is configured to reflect the light emitted by the light source part 105; the second part 1032 of the reflective structure 103 includes a first reflective sheet 1033, a second reflective sheet 1034 and a third reflective sheet 1035 arranged in a stacked manner, the main body 1034a of the second reflective sheet 1034 is arranged in a receiving space defined by the first reflective sheet 1033 and the third reflective sheet 1035, and the main body 1034a of the second reflective sheet 1034 can move relative to the first reflective sheet 1033 in the receiving space defined by the first reflective sheet 1033 and the third reflective sheet 1035. For example, the main part 1034a of the second reflector 1034 can move linearly on a straight line relative to the first reflector 1033, or it can also translate on a plane. The middle part of the first reflector 1033 is provided with a first opening 1036, and the surface of the second reflector 1034 facing the first reflector 1033 has at least one first light adjustment pattern 1037. The main part 1034a of the second reflector 1034 can move relative to the first reflector 1033 so that the overlapping area of ​​the first opening 1036 and the first light adjustment pattern 1037 changes.In the embodiment of the present disclosure, the second part 1032 of the reflective structure 103 is designed to include a first reflective sheet 1033, a second reflective sheet 1034, and a third reflective sheet 1035 that are stacked, and a first opening 1036 is provided in the middle portion of the first reflective sheet 1033, and a surface of the second reflective sheet 1034 facing the first reflective sheet 1033 has at least one first light adjustment pattern 1037. When a user uses the display device, if the display device has problems such as dark lines, bright lines, or dark frames on the edges, the user can solve the problem without disassembling the final display device. In this case, by making the main part 1034a of the second reflective sheet 1034 move relative to the first reflective sheet 1033, the overlapping area of ​​the first opening 1036 and the first light adjustment pattern 1037 changes, thereby changing the amount of light reflected by the reflective structure 103 to adjust the peripheral image quality of the display device, thereby greatly reducing the probability of repairing the display device during the production process and reducing the probability of repairing the display device of the terminal, and thus reducing the overall cost of repairing the display device to enhance the competitiveness of the display device.

[0075] It should be noted that, although not shown in Figures 1 and 2, the second reflective sheet has, in addition to the main body, a handle portion arranged at both ends of the main body portion. For example, the handle portion is a portion extending from the left and right ends of the main body portion respectively. The user of the terminal product can drive the main body of the second reflective sheet to move relative to the first reflective sheet within the accommodation space defined by the first reflective sheet and the third reflective sheet by holding the handle portion, so as to adjust the peripheral image quality of the display device without disassembling the display device, so as to reduce the phenomenon of dark frames and dark lines or bright lines on the edges. The handle portion is described in more detail in the following embodiments.

[0076] For example, in one example, only the first reflective sheet 1033 may be in contact with the middle frame 102, and the second reflective sheet 1034 and the third reflective sheet 1035 may not be in contact with the middle frame 102; for example, in another example, as shown in Figure 1, both the first reflective sheet 1033 and the third reflective sheet 1035 may be in contact with the middle frame 102, and the second reflective sheet 1034 may not be in contact with the middle frame 102. The embodiments of the present disclosure are not limited to this.

[0077] For example, as shown in Figures 1 and 2, the first reflector 1033 and the third reflector 1035 are adhered and fixed at a peripheral position, and the cross-section of the third reflector 1035 includes a bent portion, so that a cavity can be formed after the first reflector 1033 and the third reflector 1035 are adhered at the peripheral position. For example, the first reflector 1033 and the third reflector 1035 are connected surface to surface at the peripheral position, so that the connection between the first reflector 1033 and the third reflector 1035 is more stable. The second reflector 1034 is disposed in the cavity, and the second reflector 1034 does not contact the surface of the first reflector 1033 or the surface of the third reflector 1035, so as to ensure that the second reflector 1034 can move freely relative to the first reflector 1033.

[0078] In the embodiments of the present disclosure, a reflective structure is designed to have a three-layer stacked structure of a first reflective sheet 1033, a second reflective sheet 1034 and a third reflective sheet 1035, and the second reflective sheet 1034 is located in a cavity formed by the first reflective sheet 1033 and the third reflective sheet 1035. By moving the second reflective sheet 1034 relative to the first reflective sheet 1033 to adjust the overlapping area between the first opening 1036 in the first reflective sheet 1033 and the first light adjustment pattern 1037 in the second reflective sheet 1034, the reflectivity of the reflective structure to light can be changed to reduce the problem of dark frames or dark lines or bright lines on the edges, thereby adjusting the peripheral image quality of the display device without disassembling the final display device.

[0079] For example, as shown in Figures 1 and 2, the second portion 1032 of the reflective structure 103 is tilted relative to the first portion 1031, and the dihedral angle formed by the first plane where the first portion 1031 is located and the second plane where the second portion 1032 is located is in the range of (90°, 180°), that is, as can be seen from Figure 1, the angle α is an obtuse angle. The obtuse angle α can make it easier for the light emitted by the light source structure to reach the display component, thereby enhancing the display effect.

[0080] It should be noted that the "inclined setting" in the inclined setting of the second part 1032 of the reflective structure 103 relative to the first part 1031 does not include the situation where the second part 1032 is vertically set relative to the first part 1031. When the second part 1032 of the reflective structure 103 is vertically set relative to the first part 1031, the coverage range of the light emitted from the reflective structure will be very small, which will affect the final display effect of the display device.

[0081] For example, as shown in Figures 1 and 2, the first part 1031 is a single-layer structure, and the first reflective sheet 1033 included in the first part 1031 and the second part 1032 are integrally formed to form a bending structure. In the bending structure, the first part 1031 is horizontally arranged, and the first part 1031 is in direct contact with the support plate 106, which can make the contact area between the reflective structure 103 and the support plate 106 larger. The first part 1031 supports the second part 1032, so that the first reflective sheet 1033 can be stably arranged to be more firmly connected to the middle frame 102. For example, in combination with Figures 1, 2, 3 and 4, the fourth sides of the third reflector 1035 are surface-fitted with the first reflector 1033, and the first reflector 1033 and the third reflector 1035 are fixedly connected to form a fixed accommodating space. The fourth sides of the third reflector 1035 and the surface of the first reflector 1033 are surface-fitted, that is, the surface-to-surface fitting and fixation makes the connection between the first reflector 1033 and the third reflector 1035 more stable.

[0082] For example, as shown in Figures 3 and 4, the peripheral portion of the first reflector 1033 and the third reflector 1035 that are in contact with each other is provided with a second opening 1038, and the size of the second opening 1038 is smaller than the size of the first opening 1036. The second opening 1038 is provided in the peripheral portion of the first reflector 1033, so that the reflectivity of the light can be adjusted by the first reflector 1033, that is, a portion of the light incident on the second opening 1038 can directly reach the third reflector 1035, and the material of the third reflector 1035 can be a metal material with light absorption ability; or the material of the first reflector 1033 can be a metal material with light absorption ability, and the third reflector 1035 can reflect the light incident thereon, that is, a portion of the light incident on the second opening 1038 can directly reach the third reflector 1035, and the third reflector 1035 reflects the light incident thereon.

[0083] For example, the amount of light incident on the middle area of ​​the first reflector is generally greater than the amount of light incident on the peripheral area of ​​the first reflector. For example, in one example, as shown in Figures 3 and 4, the planar shapes of the first opening 1036 and the second opening 1038 are both circular, and the size of the first opening 1036 is 2 to 6 times the size of the second opening 1038. For example, the size of the first opening 1036 is 2 times, 3 times, 4 times, 5 times or 6 times the size of the second opening 1038. This can make the light adjustment ability in the middle area of ​​the first reflector 1033 stronger, so as to adapt to the situation where more light is irradiated to the middle area of ​​the middle area of ​​the first reflector 1033.

[0084] For example, as shown in Figures 3 and 4, the arrangement density of the second openings 1038 is greater than the arrangement density of the first openings 1036, that is, within an area of ​​the same size, the number of second openings 1038 is greater than the number of first openings 1036, so that the second openings 1038 can adjust the light more precisely.

[0085] For example, in other examples, the farther away from the center of the first reflector 1033, the smaller the density of the first openings 1036 in the middle area of ​​the first reflector 1033, that is, the density of the first openings 1036 in the middle area of ​​the first reflector 1033 changes gradually; or the farther away from the center of the first reflector 1033, the smaller the size of the first openings 1036 in the middle area of ​​the first reflector 1033, that is, the size of the first openings 1036 in the middle area of ​​the first reflector 1033 changes gradually.

[0086] It should be noted that the planar shape of the second opening 1038 can be circular, rectangular, or other regular or irregular shapes.

[0087] For example, in combination with the schematic structural diagrams shown in Figures 3, 4, 5 and 6, the number of first openings 1036 and first light adjustment patterns 1037 is the same and both are multiple, the shape of each first light adjustment pattern 1037 is the same as the shape of the first opening 1036, and the first light adjustment patterns 1037 and the first openings 1036 correspond one to one, so that the amount of reflected light can be adjusted by the first light adjustment patterns 1037 and the first openings 1036.

[0088] For example, as shown in Figures 5 and 6, the first light adjustment pattern 1037 on the second reflector 1034 is a printed dot pattern that can absorb light. The size, distribution position and arrangement of the dot pattern are the same as the size, distribution position and arrangement of the first opening 1036 in the middle area of ​​the first reflector 1033. In this way, the first light adjustment pattern 1037 and the first opening 1036 can more finely adjust the amount of light reflected.

[0089] For example, as shown in Figures 5 and 6, the first light-adjusting pattern 1037 includes black dots. Of course, the embodiments of the present disclosure are not limited to this, and can also be regular or irregular shapes such as black rectangles. The color of the first light-adjusting pattern 1037 can also be other colors that absorb light besides black, such as brown, dark blue, etc., which are not limited in the embodiments of the present disclosure.

[0090] For example, as shown in Figures 5 and 6, the second reflective sheet 1034 also includes a handle portion 1034b arranged at at least one end of the main body portion 1034a. In Figures 5 and 6, the second reflective sheet 1034 also includes a handle portion 1034b respectively arranged at both ends of the main body portion 1034a, and the handle portion 1034b extends beyond the accommodating space formed by the first reflective sheet 1033 and the third reflective sheet 1035.

[0091] For example, in combination with Figure 6, a marking line 1039 can be set on the handle part 1034b. In combination with Figure 6 and Figure 1, the marking line 1039 can more precisely determine the moving distance of the first light adjustment pattern 1037 in the second reflector 1034 to ensure that the moving distance of the second reflector 1034 makes the first opening 1036 and the first light adjustment pattern 1037 in the first reflector 1033 in an interlaced state, that is, the marking line 1039 can determine the interlaced length of the first light adjustment pattern 1037 in the second reflector 1034 and the first opening 1036 in the first reflector 1033, so that the overlapping area between the first opening 1036 in the first reflector 1033 and the first light adjustment pattern 1037 in the second reflector 1034 can be more precisely adjusted to change the overall reflectivity of the reflective structure 103 to light, so that the reflective structure 103 achieves the expected light-emitting effect.

[0092] For example, as shown in FIG1 , the backlight assembly 101 further includes a backplate 107, which includes side plates 1071 and a bottom plate 1072. The side plates 1071 are configured to support the middle frame 102, and the light source structure 104 is disposed on the bottom plate 1072. In FIG1 , the second portion 1032 of the reflective structure 103 abuts against the edge of the side plates 1071. The third reflective sheet 1035 included in the reflective structure 103 is in direct contact with the backplate 107, thereby enabling the backplate 107 to support the reflective structure 103. For example, the third reflective sheet 1035 and the backplate 107 are in line contact.

[0093] For example, FIG7 is a schematic diagram of the three-dimensional structure of a display device provided in at least one embodiment of the present disclosure. In conjunction with FIG1 and FIG7 , a groove 109 is provided on the side panel 1071, and the handle portion 1034b extends into the groove 109 to engage and secure the handle portion 1034b. Although FIG7 only shows the handle portion 1034b on the left side and the handle portion on the right side is not shown, in an actual product, a handle portion is also present on the right side, and the handle portion 1034b on the right side is also secured in the groove 109 of the side panel 1071, thereby securing the entire second reflector 1034.

[0094] For example, when using the display device, when problems such as dark frames or dark lines on the edges appear in the peripheral image quality of the display device, without disassembling the display device, the handle portion 1034b of the second reflective sheet 1034 is pulled out of the groove 109 and pulled outward for a distance along the extension of the second reflective sheet 1034. Then, the first light adjustment pattern 1037 in the second reflective sheet 1034 and the first opening 1036 in the first reflective sheet 1033 are staggered, so that the first light adjustment pattern 1037 printed on the second reflective sheet 1034 can be seen through the first opening 1036 in the first reflective sheet 1033. When the first light adjustment pattern 1037 is a black dot, the surface of the black dot will absorb part of the light, thereby reducing the overall reflectivity of the reflective structure, thereby improving the bright and dark line problems around the display device and improving the uniformity of the image quality of the display device.

[0095] For example, Figure 8 is a photograph of a display device provided by at least one embodiment of the present disclosure. By utilizing a groove 109 on the side panel 1071 to accommodate the handle portion 1034b, the volume of the entire display module can be reduced, and the entire display device is free of sharp or scratching parts. Furthermore, the handle portion 1034b extends beyond the outer shell and fits snugly therewith. While ensuring safety during use and transportation, the handle portion 1034b allows for convenient adjustment of the overlapping area between the first opening 1036 in the first reflector 1033 and the first light-adjusting pattern 1037 in the second reflector 1034.

[0096] For example, Figure 9 is a structural schematic diagram of the first light adjustment pattern in the second reflector provided by an embodiment of the present disclosure and the first opening in the first reflector in a staggered state; Figure 10 is a structural schematic diagram of the first light adjustment pattern in the second reflector provided by an embodiment of the present disclosure and the first opening in the first reflector in an overlapping state. Combining Figures 9 and 10, schematically, in Figure 9, the first light adjustment pattern in the second reflector and the first opening in the first reflector are in a completely staggered state, and four beams of light are completely reflected after being incident on the first opening 1036 in the first reflector 1033. In Figure 10, the first light adjustment pattern 1037 in the second reflector 1034 and the first opening 1036 in the first reflector 1033 are in a partially overlapping state. After the four beams of light are incident on the first opening 1036 in the first reflector 1033, only two beams of light are completely reflected back, and part of the other two beams of light are absorbed by the first light adjustment pattern 1037, and part is reflected by the reflective structure, which is equivalent to reducing the reflectivity of the other two beams of light. Therefore, without disassembling the display device, the first light adjustment pattern in the second reflector and the first opening in the first reflector can be staggered by pulling the handle part 1034b, thereby improving the problem of bright lines around the display device and thereby improving the uniformity of the overall picture quality of the display device.

[0097] For example, FIG11 is a schematic diagram of light reflection corresponding to FIG9 , and FIG12 is a schematic diagram of light reflection corresponding to FIG10 . Comparing FIG11 and FIG12 , it can be clearly seen that the amount of light reflected in FIG11 is much greater than the amount of light reflected in FIG12 . FIG13 is a display image of the display device in the state shown in FIG9 , and FIG14 is a display image of the display device in the state shown in FIG10 . The display brightness of the display device corresponding to FIG13 is significantly greater than the display brightness of the display device corresponding to FIG14 . Furthermore, there is a bright line at the right edge of the display image shown in FIG13 , while there is no bright line in the display image shown in FIG14 . Therefore, when a bright line appears on the image displayed by the display device, the overall reflectivity of the reflective structure 103 to light can be changed by adjusting the overlapping area between the first opening 1036 in the first reflective sheet 1033 and the first light-adjusting pattern 1037 in the second reflective sheet 1034 , thereby eliminating the bright line problem.

[0098] For example, in the process of using a spliced ​​screen, there will be a phenomenon of mutual squeezing between the adjacent display modules that make up the spliced ​​screen. When the outer side of the middle frame is subjected to squeezing force, it is easy to cause the middle frame to turn inward, and the supporting part of the middle frame's supporting reflective adhesive will shift inward. The width of the bonding between adjacent display modules is small (<1.2mm), and the inward shift of the supporting part of the middle frame's supporting reflective adhesive can easily block the edge pixels, which will make the size of the actual splicing seam smaller than the design value. For example, Figure 15 is a schematic diagram of the cross-sectional structure of a display module in which the edge pixels are blocked when the middle frame turns inward, and Figure 16 is a schematic diagram of the cross-sectional structure of a display module in which the edge pixels are blocked and the reflective structure is squeezed when the middle frame turns inward. As shown in Figure 15, the position of the dotted box is the position of the middle frame after turning inward, and it will block the edge pixels at the upper end of the middle frame. As shown in Figure 16, when the middle frame is turned inward, not only does the upper end of the middle frame block the edge pixels, but the reflective structure at its lower right corner is also squeezed and deformed, causing the reflective structure to bulge toward the side away from its corresponding side panel, thereby deteriorating the peripheral image quality of the display screen, and easily causing dark lines, bright lines, or dark frames to appear on the edges.

[0099] Therefore, it is possible to consider designing the support point of the side panel to the center frame on the inner side of the center frame to reduce the risk of the center frame turning inward. For example, Figure 17 is a schematic diagram of the cross-sectional structure of a back panel and a center frame provided in at least one embodiment of the present disclosure. As shown in Figure 17, the center frame 102 and the back panel 107 form a whole. The edges of the center frame 102 away from the cavity 108 are all outside the bent edges of the side panels 1071, and the support point A of the side panels 1071 on the center frame 102 is located between the center frame 102 and the cavity 108. Since the support point A is located on the inner side of the center frame 102, the center frame 102 is not prone to turning inward, thereby making the overall structure of the display module more stable.

[0100] For example, FIG18 is a schematic diagram of the cross-sectional structure of a back panel provided in at least one embodiment of the present disclosure. As shown in FIG18 , side panels 1071 are symmetrically arranged on the left and right sides. The symmetrically arranged side panels 1071 on the left and right sides are connected by a bottom plate 1072 located between the two opposite side panels 1071. The side panels 1071 are formed of electrogalvanized steel sheets to provide a certain supporting strength for the side panels 1071. In conjunction with FIG17 and FIG18 , the side panels 1071 on each side adopt a secondary bending design, and the bending directions of the opposite side panels 1071 are the same to form a cavity 108 between the opposite side panels 1071. The light source structure 104 is formed in the cavity 108.

[0101] It should be noted that, in conjunction with Figure 18, the secondary bending can be a first bending at the M position and a second bending at the N position.

[0102] For example, as shown in FIG17 , the middle frame 102 includes a main body portion 102a, and the planar shape of the main body portion 102a is a parallelogram. Of course, the embodiments of the present disclosure are not limited thereto, and the planar shape of the main body portion 102a can also be other shapes, and the middle area of ​​the main body portion 102a can also be hollowed out or made of a more transparent material. The side panels 1071 extend in a first direction X, and the bottom panel 1072 extends in a second direction Y. The parallelogram includes a first side 1021 and a second side 1022 extending in the second direction Y and arranged opposite to each other. The first side 1021 is the uppermost side of the parallelogram, and the second side 1022 is the lowermost side of the parallelogram. The middle frame 102 also includes a first branch portion 1023 extending in the first direction X and connected to the edge of the first side 1021 away from the cavity 108, and a second branch portion 1024 extending in a direction opposite to the first direction X and connected to the edge of the second side 1022. Both the first branch portion 1023 and the second branch portion 1024 are elongated. The support point of the side panel 1071 for the middle frame 102 is located on the side of the second branch portion 1024 closer to the cavity 108, thereby preventing the risk of the middle frame 102 from turning inward.

[0103] For example, as shown in FIG17 , the side panel 1071 includes a first side panel portion 1071a and a second side panel portion 1071b that are detachably connected, and the first side panel portion 1071a and the second side panel portion 1071b are connected by screws and a second branch portion 1024. The first side panel portion 1071a contacts the middle frame 102 to support the middle frame 102. For example, in the structure shown in FIG17 , the second branch portion 1024 is also divided into a portion located above the screw and a portion located below the screw. The portion located above the screw and the portion located below the screw of the second branch portion 1024 are detachable and separable from each other.

[0104] For example, as shown in FIG17 , the second side plate portion 1071b includes a bent portion 1072 that bends toward one side of the cavity 108. Referring to FIG1 and FIG17 , the third reflector 1035 included in the reflective structure 103 abuts against the bent portion 1072 to support the third reflector 1035, making the reflective structure 103 less likely to bend. This ensures that the reflective structure 103 stably reflects incident light, thereby ensuring the reflective structure 103 has a good light reflection effect.

[0105] For example, in a spliced ​​screen formed by splicing multiple display modules, the presence or absence of a seam or the size of the seam is one of the important physical parameters for evaluating the performance of the spliced ​​screen. In order to minimize or eliminate the seam of the spliced ​​screen, the design of the spliced ​​screen should try to avoid the side edges affecting the seam. For example, as shown in Figure 18, a storage space 1073 is formed at the bend of the side panel 1071. The storage space 1073 is a fixed area for the printed circuit board (PCB board), thereby ensuring that there is space for the PCB to be placed and that there is no seam between two adjacent display modules of the spliced ​​screen.

[0106] For example, Figure 19 is a schematic diagram of the three-dimensional structure of a middle frame provided in at least one embodiment of the present disclosure, and Figure 20 is a schematic diagram of the three-dimensional structure of the corners of the middle frame shown in Figure 19, as shown in Figure 19. As shown in Figure 19, the four sides of the middle frame adopt a split design, and the four corners of the middle frame 102 are connected by connectors to form a frame shape. In conjunction with Figure 20, the four corners of the middle frame 102 are fixedly connected by connectors 1021 and screws 1022.

[0107] For example, as shown in Figure 1, the display module 10 also includes a diffuser plate 110 and an optical film material 111 stacked on one side of the main surface of the parallelogram of the middle frame 102 away from the bottom plate 1072. The partial surface of the diffuser plate 110 close to the main surface of the bottom plate 1072 is connected to the first side 1021 of the middle frame 102, and the side surface of the optical film material 111 is connected to the first branch portion 1023 of the middle frame 102 through the reflective adhesive 112.

[0108] For example, Figure 21 is a partially enlarged structural schematic diagram of a reflective adhesive provided in at least one embodiment of the present disclosure. As shown in Figure 21, the reflective adhesive 112 includes a fourth reflective sheet 1121, a fifth reflective sheet 1122, and a sixth reflective sheet 1123, which are stacked. The main portion of the fifth reflective sheet 1122 is disposed within the accommodation space defined by the fourth reflective sheet 1121 and the sixth reflective sheet 1123 and is movable relative to the fourth reflective sheet 1121. For example, Figure 22 is a schematic planar structural diagram of the entire fourth reflective sheet in Figure 21, Figure 23 is a schematic enlarged structural diagram of a portion of the fourth reflective sheet in Figure 22, Figure 24 is a schematic planar structural diagram of the entire fifth reflective sheet in Figure 21, and Figure 25 is a schematic enlarged structural diagram of a portion of the fifth reflective sheet in Figure 24. Figure 26 is a schematic planar structural diagram of another fifth reflective sheet in Figure 21, and Figure 27 is a schematic enlarged structural diagram of a portion of the fifth reflective sheet in Figure 26.

[0109] For example, referring to FIG. 22 and FIG. 23 , a third opening 1124 is provided in the middle portion of the fourth reflective sheet 1121 , and the third opening 1124 allows light to pass therethrough, so that the light reaches the fifth reflective sheet 1122 .

[0110] For example, as shown in Figures 24 and 25, the surface of the fifth reflector 1122 facing the fourth reflector 1121 has at least one second light adjustment pattern 1125. Figure 24 shows that the surface of the fifth reflector 1122 facing the fourth reflector 1121 has multiple second light adjustment patterns 1125, and the main part of the fifth reflector 1122 moves relative to the fourth reflector 1121 so that the overlapping area of ​​the third opening 1124 and the second light adjustment pattern 1125 changes.

[0111] Figure 28 is a schematic diagram of the cross-sectional structure of the sky side and the ground side of a display device provided by at least one embodiment of the present disclosure. For example, as shown in Figure 28, reflective adhesive 112 is provided on the sky side and the ground side of the display module, and the reflective adhesive 112 located on the ground side and the sky side includes a fifth reflective sheet 1122, and the surface of the surface close to the fourth reflective sheet 1121 is provided with a second light adjustment pattern 1125.

[0112] For example, the middle frame 102 supports a portion of the inner side wall of the optical film 111. A reflective adhesive 112 is generally attached between the optical film 111 and the first branch portion 1023 of the middle frame 102. The reflective adhesive 112 can reflect light. However, the size of the gap between the diffuser plate 110 and the middle frame 102 directly affects the function of the reflective adhesive 112, thereby causing the image quality at the edge of the display device to deteriorate.

[0113] For example, during assembly or transportation of the display device, the diffuser plate 110 often shifts under the action of gravity, which can reduce the gap d2 between the diffuser plate 110 and the middle frame 102 on the ground side and increase the gap d1 between the diffuser plate 110 and the middle frame 102 on the sky side. On the ground side, the reduction in gap d2 between the diffuser plate 110 and the middle frame 102 can cause dark lines to appear at the edge of the display device, necessitating an increase in the brightness of the ground side of the display device. On the sky side, the increase in gap d1 between the diffuser plate 110 and the middle frame 102 can cause bright lines to appear at the edge of the display device, necessitating a decrease in the brightness of the sky side of the display device.

[0114] For example, in Figures 24 and 25 , the surface of the fifth reflector 1122 facing the fourth reflector 1121 has multiple second light-adjusting patterns 1125. For example, in the structures shown in Figures 24 and 25 , the reflective adhesive 112 is located on the ground side. The gap between the diffuser plate 110 and the middle frame 102 on the ground side of the display device is small, and dark lines are easily seen at the edge of the ground side of the display device. Therefore, it is necessary to improve the brightness of the display device. The second light-adjusting patterns 1125 are printed silver dots, which correspond one-to-one with the third openings 1124. The silver dots have a higher reflectivity for light, effectively improving the brightness of the ground side edge of the display device, thereby improving the dark line problem at the ground side edge of the display device.

[0115] For example, in Figures 26 and 27, the surface of the fifth reflector 1122 facing the fourth reflector 1121 has multiple second light-adjusting patterns 1125. For example, in the structures shown in Figures 26 and 27, the reflective adhesive 112 is located on the sky side. The gap between the diffuser plate 110 and the middle frame 102 on the sky side of the display device is large, and bright lines are likely to appear at the edge of the sky side of the display device. Therefore, it is necessary to reduce the brightness of the display device. The second light-adjusting patterns 1125 are printed black dots, which correspond one-to-one with the third openings 1124. The black dots have a low reflectivity to light and can effectively reduce the brightness of the ground side edge of the display device, thereby improving the problem of bright lines at the ground side edge of the display device.

[0116] For example, in one example, the diameter of the third opening 1124 is between 2 cm and 6 cm, and in the moving direction of the main part of the fifth reflector 1122 relative to the fourth reflector 1121, the distance between two adjacent third openings 1124 is greater than the diameter of the third opening 1124. In this way, the adjustment range of the overlapping area of ​​the third opening 1124 and the second light adjustment pattern 1125 can be larger, so as to be suitable for more application scenarios.

[0117] For example, as shown in Figures 25 and 27, in the direction in which the fifth reflector 1122 moves relative to the fourth reflector 1121, reflective adhesive handles 1122a are provided at both ends of the fifth reflector 1122, and the reflective adhesive handles 1122a extend to the outside of the middle frame 102.

[0118] For example, referring to the actual photograph shown in FIG8 , the reflective adhesive handle 1122a is also housed in a groove, which can reduce the volume of the entire display module and eliminate any sharp or scratch-prone parts of the entire display device. Furthermore, the reflective adhesive handle 1122a extends beyond the outer shell and fits snugly therewith. While ensuring safety during use and transportation, the reflective adhesive handle 1122a can be used to conveniently adjust the overlapping area between the third opening 1124 in the fourth reflector 1121 and the second light-adjusting pattern 1125 in the fifth reflector 1122.

[0119] For example, as shown in Figure 28, the main part of the fifth reflector 1122 moves relative to the fourth reflector 1121, so that the overlapping area of ​​the third opening 1124 and the second light adjustment pattern 1125 changes. For example, the overlapping area of ​​the third opening 1124 and the second light adjustment pattern 1125 on the ground side becomes larger, so that the silver dots reflect the light, thereby improving the reflectivity, which can effectively enhance the brightness of the ground side edge of the display device to improve the dark line problem at the ground side edge of the display device. For example, Figure 29 is a schematic diagram after the third opening on the ground side and the second light adjustment pattern overlap. For example, Figure 30 is the amount of light emitted before and after the third opening on the ground side and the second light adjustment pattern overlap. The light path diagram on the left side of Figure 30 is the amount of light emitted before the third opening on the ground side and the second light adjustment pattern overlap. The light path diagram on the right side of Figure 30 is the amount of light emitted after the third opening on the ground side and the second light adjustment pattern overlap. It can be seen from Figure 30 that after the overlapping area of ​​the third opening 1124 on the ground side and the second light adjustment pattern 1125 increases, the amount of edge light emitted is significantly increased, and there is no problem of dark lines on the edge of the ground side.

[0120] For example, as shown in FIG28 , the overlapping area of ​​the third opening 1124 and the second light adjustment pattern 1125 on the sky side becomes larger, so that the black dots reflect the light, reducing the reflectivity, which can effectively reduce the brightness of the sky side edge of the display device to improve the dark line problem at the sky side edge of the display device.

[0121] For example, as shown in Figure 1, the display module further includes a display component 113 disposed on a side of the optical film 111 away from the bottom plate 1072, and an outer frame 114 disposed on a side of the middle frame 102 away from the side plate 1071. The display component 113 and the outer frame 114 are connected. The outer frame 114 can protect the internal structure of the display module. A display panel 113 is disposed on the side of the optical film 111 away from the diffuser 110, and is used to display images.

[0122] At least one embodiment of the present disclosure further provides a splicing screen, which includes a plurality of connected display modules as described above. For example, Figure 31 is a schematic diagram of the planar structure of the splicing screen provided by at least one embodiment of the present disclosure. As shown in Figure 31, the splicing screen 30 includes a plurality of display modules 10 provided by any of the above embodiments. Although Figure 31 shows that the splicing screen 30 includes a splicing screen formed by splicing 9 display modules 10, the embodiments of the present disclosure are not limited thereto and may also include other numbers of display modules 10, for example, 2, 4, 6, 12, etc. The plurality of display modules 10 are spliced ​​together, and a seam is formed between any two adjacent display modules 10. In some examples, the display module 10 may be a liquid crystal display module, an organic light emitting diode (OLED) display module, or an electrophoretic display module.

[0123] At least one embodiment of the present disclosure further provides a display device. For example, FIG32 is a block diagram of a display device provided by at least one embodiment of the present disclosure. As shown in FIG32 , the display device 40 includes multiple display modules 10 provided by any of the above embodiments. The display device 40 also includes a spliced ​​screen 30 formed by splicing multiple display modules 10. The display device in the embodiments of the present disclosure can be any product or component with a display function, such as a monitor, an OLED panel, an OLED TV, electronic paper, a mobile phone, a tablet computer, a laptop computer, a digital photo frame, or a navigation system.

[0124] The display module, spliced ​​screen, and display device provided by at least one embodiment of the present disclosure have at least one of the following beneficial technical effects:

[0125] (1) At least one embodiment of the present disclosure provides a display module, which includes a backlight assembly including a middle frame, a reflective structure and a light source structure. The second part of the reflective structure includes a first reflective sheet, a second reflective sheet and a third reflective sheet that are stacked. The main part of the second reflective sheet is arranged in a accommodating space defined by the first reflective sheet and the third reflective sheet, and is movable relative to the first reflective sheet. The second part of the reflective structure adopts a stacked three-layer structure, and the main part of the second reflective sheet is movable relative to the first reflective sheet. Therefore, the image quality around the display module can be adjusted without disassembling the display module, which can greatly reduce the production efficiency and the maintenance rate of the display module.

[0126] (2) In the display module provided by at least one embodiment of the present disclosure, the reflective adhesive is located on the sky side, and the gap between the diffuser plate and the middle frame on the sky side of the display device is relatively large. The second light adjustment pattern is printed black dots, and the black dots correspond one-to-one to the third openings. The black dots have low reflectivity to light and can effectively reduce the brightness of the ground side edge of the display device to improve the problem of bright lines on the ground side edge of the display device.

[0127] (3) In the display module provided by at least one embodiment of the present disclosure, the reflective adhesive is located on the ground side, and the gap between the diffusion plate and the middle frame on the ground side of the display device is small. The second light adjustment pattern is printed silver dots, and the silver dots correspond one-to-one to the third openings. The silver dots have a higher reflectivity to light, which can effectively improve the brightness of the ground side edge of the display device to improve the dark line problem at the ground side edge of the display device.

[0128] There are a few points to note:

[0129] (1) The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0130] (2) For the sake of clarity, in the drawings used to describe the embodiments of the present disclosure, the thickness of layers or regions is exaggerated or reduced, that is, these drawings are not drawn according to the actual scale.

[0131] (3) In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0132] The above description is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure shall be based on the protection scope of the claims.

Claims

1. A display module, comprising: A backlight assembly, wherein the backlight assembly comprises a middle frame, a reflective structure and a light source structure, The light source structure comprises a light source part and a support plate carrying the light source part; The reflective structure includes a first portion parallel to a first plane where the support plate is located, and a second portion on a second plane intersecting the first plane, the second portion is connected to the middle frame, the first portion is connected to the support plate, and the reflective structure is configured to reflect light emitted by the light source portion; The second part of the reflective structure comprises a first reflective sheet, a second reflective sheet and a third reflective sheet which are stacked, and a main body of the second reflective sheet is arranged in a receiving space defined by the first reflective sheet and the third reflective sheet, and is movable relative to the first reflective sheet; A first opening is provided in the middle part of the first reflective sheet, a surface of the second reflective sheet facing the first reflective sheet has at least one first light adjustment pattern, and a main part of the second reflective sheet moves relative to the first reflective sheet so that an overlapping area between the first opening and the first light adjustment pattern changes.

2. The display module according to claim 1, wherein: The second portion of the reflective structure is tilted relative to the first portion, and a dihedral angle formed by the first plane and the second plane is in the range of (90°, 180°).

3. The display module according to claim 1 or 2, wherein: The third reflector sheet is in contact with the first reflector sheet at four sides, and the first reflector sheet and the third reflector sheet are fixedly connected to form a fixed accommodation space.

4. The display module according to claim 3, wherein: A second opening is provided at a peripheral portion where the four peripheral surfaces of the first reflection sheet and the third reflection sheet are bonded together, and a size of the second opening is smaller than a size of the first opening.

5. The display module according to claim 4, wherein: The arrangement density of the second openings is greater than the arrangement density of the first openings.

6. The display module according to any one of claims 3 to 5, wherein: The number of the first openings and the first light adjustment patterns are the same and both are multiple, the shape of each of the first light adjustment patterns is the same as the shape of the first opening, and the first light adjustment patterns and the first openings correspond one to one.

7. The display module according to claim 6, wherein: The first light-adjusting pattern includes black dots.

8. The display module according to claim 6, wherein: The second reflective sheet further includes a handle portion disposed at at least one end of the main body portion, and the handle portion extends out of the accommodating space.

9. The display module according to claim 8, wherein: A marking line is arranged on the handle portion.

10. The display module according to claim 8 or 9, wherein: The backlight assembly further includes a back plate, the back plate includes a side plate and a bottom plate, the side plate is configured to support the middle frame, and the light source structure is disposed on the bottom plate.

11. The display module according to claim 10, wherein: The side plate is provided with a groove, and the handle portion extends into the groove.

12. The display module according to claim 10, wherein: The side panels adopt a secondary bending design, and the bending directions of the opposite side panels are the same to form a cavity between the opposite side panels.

13. The display module according to claim 12, wherein: The edges of the middle frame away from the cavity are all outside the bent edges of the side panels, and the supporting points of the side panels for the middle frame are located between the middle frame and the cavity.

14. The display module according to claim 13, wherein: The middle frame includes a main body portion, the planar shape of the main body portion is a parallelogram, the extension direction of the side panel is a first direction, the extension direction of the bottom panel is a second direction, the parallelogram includes a first side and a second side extending in the second direction and arranged opposite to each other, the middle frame also includes a first branch portion extending in the first direction and connected to an edge of the first side away from the cavity, and a second branch portion extending in a direction opposite to the first direction and connected to an edge of the second side, and a supporting point of the side panel for the middle frame is located on a side of the second branch portion close to the cavity.

15. The display module according to claim 14, wherein: The side panel includes a first side panel portion and a second side panel portion that are detachably connected, and the first side panel portion and the second side panel portion are connected via screws and the second branch portion, and the first side panel portion is in contact with the middle frame to support the middle frame.

16. The display module according to claim 15, wherein: The second side plate portion includes a bent portion bent toward one side of the cavity, and the third reflective sheet included in the reflective structure abuts against the bent portion.

17. The display module according to any one of claims 14 to 16, wherein: The display module further includes a diffusion plate and an optical film material stacked on a side of the parallelogram of the middle frame away from the main surface of the bottom plate. A portion of the surface of the diffusion plate close to the main surface of the bottom plate is connected to the first side of the middle frame; The side surface of the optical film material is connected to the first branch portion of the middle frame through reflective adhesive.

18. The display module according to claim 17, wherein: The reflective adhesive includes a fourth reflective sheet, a fifth reflective sheet and a sixth reflective sheet which are stacked together, the main part of the fifth reflective sheet is arranged in the accommodating space defined by the fourth reflective sheet and the sixth reflective sheet, and can move relative to the fourth reflective sheet, the middle part of the fourth reflective sheet is provided with a third opening, the surface of the fifth reflective sheet facing the fourth reflective sheet has at least one second light adjustment pattern, and the main part of the fifth reflective sheet moves relative to the fourth reflective sheet so that the overlapping area of ​​the third opening and the second light adjustment pattern changes.

19. The display module according to claim 18, wherein: The diameter of the third opening is between 2 cm and 6 cm.

20. The display module according to claim 19, wherein: In the direction in which the fifth reflection sheet moves relative to the fourth reflection sheet, the distance between adjacent third openings is greater than the diameter of the third opening.

21. The display module according to any one of claims 18 to 20, wherein: The reflective adhesive is disposed on both the sky side and the ground side of the display module, and the reflective adhesive located on the ground side includes the fifth reflective sheet whose surface close to the fourth reflective sheet is provided with the second light adjustment pattern.

22. The display module according to claim 21, wherein: The second light adjustment pattern includes at least one of silver dots and black dots, and the second light adjustment pattern corresponds to the third openings in a one-to-one manner.

23. The display module according to claim 22, wherein: In the direction in which the fifth reflector sheet moves relative to the fourth reflector sheet, reflective adhesive handles are provided at both ends of the fifth reflector sheet, and the reflective adhesive handles extend to the outside of the middle frame.

24. The display module according to claim 21, wherein: The four corner portions of the middle frame are connected by connecting pieces to form a frame shape.

25. The display module according to claim 17, further comprising: A display component is arranged on a side of the optical film material away from the bottom plate, and an outer frame is arranged on a side of the middle frame away from the side plate, wherein the display component and the outer frame are connected.

26. The display module according to any one of claims 1 to 15, wherein: The first portion of the reflective structure is a single-layer structure, and the first portion of the reflective structure and the first reflective sheet are integrally formed.

27. A spliced ​​screen, comprising a plurality of connected display modules as claimed in any one of claims 1 to 26.

28. A display device comprising the display module according to any one of claims 1 to 26.

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