A spliced reflection structure, a backlight module and a display device
By using a layered splicing design with a splicing reflective structure, the problem of poor visual effects caused by reflection splicing errors in large-size backlight modules is solved, thereby improving light uniformity and display effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU VISION NEW TECH CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-10
AI Technical Summary
In large-size backlight modules, the cumulative error of multiple reflective splicing blocks leads to inaccurate reflection alignment, causing poor visual effects such as bright and dark lines.
It adopts a spliced reflective structure, which is achieved by stacking and splicing the extensions of the reflectors with the extensions of adjacent reflectors to adjust splicing errors, and optimizes the light distribution through the design of the reflector cup.
It effectively eliminates splicing errors, avoids bright and dark lines, and improves light uniformity and display effect.
Smart Images
Figure CN224480786U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of display device technology, specifically to a splicing reflective structure, a backlight module, and a display device. Background Technology
[0002] When using vacuum-formed reflectors in large-size backlight modules, multiple small reflector pieces of different sizes are usually spliced together. However, as the number of spliced pieces increases, the assembly error accumulates and becomes larger. In the diagonal direction of the module, a large deviation often occurs, resulting in inaccurate reflection alignment or splicing deviation, causing poor visual effects such as bright and dark lines. Utility Model Content
[0003] This application provides a splicing reflective structure, a backlight module, and a display device, aiming to improve the poor visual effect caused by splicing deviation in existing display devices.
[0004] On one hand, embodiments of this application provide a spliced reflective structure, including at least two reflectors. Each reflector includes a first reflector cup located at the edge of the reflector cup. The first reflector cup extends outward toward the reflector cup to form an extension portion. At least a portion of the extension portion of one reflector cup is stacked and spliced with at least a portion of the extension portion of an adjacent reflector cup.
[0005] In some embodiments, the first reflector cup has a first side and a second side disposed opposite to each other along the direction of the inside and outside of the reflector, and the second side of the first reflector cup extends outward from the reflector to form the extension portion;
[0006] The first side of the first reflector is higher than the second side of the first reflector.
[0007] In some embodiments, the height of the first side of the first reflector is H, and the height of the second side of the first reflector is 0.66H to 0.75H; and / or,
[0008] The first reflector also includes two side sides connecting the first side and the second side, and at least one of the side sides is arranged with its top end gradually inclined downward in the direction from the first side toward the second side.
[0009] In some embodiments, the reflector includes a plurality of interconnected reflective cups, the plurality of reflective cups including a first reflective cup located at the edge of the reflector and a second reflective cup located at the center of the reflector, the second reflective cup having a dimension a along the inner and outer directions of the reflector;
[0010] The first reflector cup has a dimension x along the inner and outer directions of the reflector, where x > a; and / or,
[0011] The plurality of first reflectors include corner reflectors located at the corners of the reflector, the top of the corner reflector being inclined outward and downward from the point where it intersects with the second reflector.
[0012] In some embodiments, the dimension of the cup body of the first reflector along the inner and outer directions of the reflector is c, where a-1.05mm < c < a-0.7mm; and / or,
[0013] The extension has a dimension d along the direction inside and outside the reflector, where 1mm < d < 1.5mm.
[0014] In some embodiments, the reflector has a first outer side and a second outer side disposed opposite to each other;
[0015] The first outer side of the reflector is higher than the second outer side of the reflector; and / or,
[0016] The extension includes a first extension located on the first outer side and a second extension located on the second outer side. One of the first extension and the second extension extends downward and then outward to form a stepped surface. The other of the first extension and the second extension is used to join with the stepped surface of the adjacent reflector.
[0017] In some embodiments, the reflector includes a plurality of interconnected reflective cups, the plurality of reflective cups including a first reflective cup located at the edge of the reflector, the top of the reflective cup having a protrusion for supporting an optical film.
[0018] In some embodiments, the protrusion is located at the junction of two adjacent sides of the reflector; or,
[0019] The protrusion is located at the top of one side of the reflector.
[0020] In some embodiments, the number of protrusions at the top of each reflector cup is no more than two.
[0021] On the other hand, embodiments of this application provide a backlight module, including a reflector as described in any of the above descriptions.
[0022] In another aspect, embodiments of this application provide a display device including a reflector as described in any of the above descriptions.
[0023] In this embodiment, a first reflector extends outward from the reflector to form an extension portion. At least a portion of the extension portion of one reflector is stacked and spliced with at least a portion of the extension portion of an adjacent reflector. By stacking and splicing, on the one hand, errors caused by splicing can be effectively eliminated, and on the other hand, the phenomenon of the underlying PCB board being exposed due to traditional splicing methods can be avoided. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a top view of a spliced reflective structure provided in some embodiments of this application;
[0026] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;
[0027] Figure 3 yes Figure 1 A magnified view of a section at point B in the middle;
[0028] Figure 4 yes Figure 1 A three-dimensional structural diagram of the first reflector cup in the image;
[0029] Figure 5 yes Figure 4 A top view of the first reflector in the image;
[0030] Figure 6 yes Figure 4 Front view of the first reflector in the image;
[0031] Figure 7 yes Figure 1 A 3D structural diagram of the corner reflector cup;
[0032] Figure 8 yes Figure 7 A top view of the corner reflector in the middle;
[0033] Figure 9 yes Figure 1 A three-dimensional structural diagram of the second reflector cup in the image;
[0034] Figure 10 yes Figure 9 A top view of the second reflector in the image;
[0035] Figure 11 yes Figure 9 The front view of the second reflector in the image;
[0036] Figure 12 This is a schematic diagram of the splicing of reflectors provided in some embodiments of this application.
[0037] Explanation of key component symbols:
[0038]
[0039] Detailed Implementation
[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0041] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0042] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.
[0043] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values may in practice be based on additional conditions or values beyond those stated.
[0044] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.
[0045] When using vacuum-formed reflectors in large-size backlight modules, multiple small reflector pieces of different sizes are usually spliced together. However, as the number of spliced pieces increases, the assembly error accumulates and becomes larger. In the diagonal direction of the module, a large deviation often occurs, resulting in inaccurate reflection alignment or splicing deviation, causing poor visual effects such as bright and dark lines.
[0046] In response, this application provides a spliced reflective structure 1000, please refer to [link / reference]. Figures 1 to 3 The spliced reflective structure 1000 includes at least two reflectors 100. Each reflector 100 includes a first reflector cup 10 located at the edge of the reflector 100. The first reflector cup 10 extends outward toward the reflector 100 to form an extension 11. At least a portion of the extension 11 of one reflector 100 is stacked and spliced with at least a portion of the extension 11 of the adjacent reflector 100.
[0047] It should be noted that the reflector 100 includes a first reflector cup 10. The reflector 100 may only include the first reflector cup 10, for example, when there are only two rows of reflector cups, in which case all reflector cups are located at the edge of the reflector 100, that is, all reflector cups are the first reflector cup 10. Alternatively, it may have multiple rows, such as three, four, or five rows. In this case, it may also include a second reflector cup 20 located at a non-edge position, and so on. No limitation is made here.
[0048] The first reflector cup 10 extends outward toward the reflector 100 to form an extension portion 11. It can be that only one of the multiple first reflector cups 10 has its outer edge extending outward toward the reflector 100, or it can be two, three, four, or all of the first reflector cups 10 have their outer edges extending outward toward the reflector 100, etc., and is not limited here.
[0049] The specific implementation of the extension 11 is not limited; it can be in the form of planar layering, or in the form of stepped surface layering, etc., and is not limited here. The specific implementation of the layering splicing is not limited; it can be a splicing where the two extensions 11 completely overlap, or it can be a splicing where only a small part overlaps, and is not limited here.
[0050] In conventional reflector splicing, gaps may appear between multiple reflectors 100 due to splicing errors, resulting in bright and dark lines. In this application, at least a portion of the extension 11 of one reflector 100 is stacked and spliced with at least a portion of the extension 11 of an adjacent reflector 100. That is, during splicing, at least a portion of the two extensions 11 overlap. Therefore, by adjusting the size of the overlapping portion, the splicing error can be compensated, effectively avoiding the phenomenon of bright and dark lines.
[0051] In this embodiment, the first reflector 10 extends outward toward the reflector 100 to form an extension 11. At least a portion of the extension 11 of the reflector 100 is stacked and spliced with at least a portion of the extension 11 of the adjacent reflector 100. By stacking and splicing, on the one hand, the error caused by splicing can be effectively eliminated, and on the other hand, the phenomenon of the underlying PCB board being exposed caused by the traditional splicing method can be avoided.
[0052] It should be emphasized that the height of the edge of the reflector 100 is not limited; it can be higher or lower than the height of the middle position, and no limitation is made here.
[0053] Please refer to the following: Figures 4 to 8 In one embodiment, the first reflector cup 10 has a first side 12 and a second side 13 disposed opposite to each other in the direction of the inside and outside of the reflector 100, and the second side 13 of the first reflector cup 10 extends outward from the reflector 100 to form the extension portion 11; the first side 12 of the first reflector cup 10 is higher than the second side 13 of the first reflector cup 10.
[0054] In the corresponding embodiment, the second side 13 of the first reflector 10 is lowered, that is, the height of the extension 11 is lowered. So that after the reflector 100 and the adjacent reflector 100 are spliced together by the extension 11, the height of the extension 11 is not higher than the height of the other reflectors or the first side 12 of the first reflector 10. This allows more light to be reflected to the splicing point of the two reflectors 100, improving the uniformity of light at the splicing point and avoiding the occurrence of bright and dark lines.
[0055] It should be noted that the first side 12 of the first reflector 10 is higher than the second side 13 of the first reflector 10. For multiple first reflectors 10, it may be that only one first reflector 10 has its first side 12 higher than the second side 13 of the first reflector 10, or it may be that the first side 12 of all first reflectors 10 is higher than the second side 13 of the first reflector 10, etc., and so on. No limitation is made here. In one embodiment, the first side 12 of the first reflector 10 located at the edge and not at the corner is higher than the second side 13 of the first reflector 10.
[0056] The height difference between the first side 12 and the second side 13 of the first reflector cup 10 is not limited and can take any value within a reasonable range.
[0057] In one embodiment, the height of the first side 12 of the first reflector 10 is H, and the height of the second side 13 of the first reflector 10 is 0.66H to 0.75H.
[0058] In the scheme of this embodiment, the height of the second side 13 is not greater than 0.75 times the height of the first side 12 of the first reflector 10, so that after the second side 13 is stacked and spliced with the second side 13 of other reflectors 100, it will not be higher than the height of the first side 12 of the first reflector 10, and will not cause too much obstruction to the light emitted by the reflector to the splicing point of the two extensions 11, thus improving the uniformity of the light at the splicing point.
[0059] It is understandable that if the height difference between the first side 12 and the second side 13 is too large, the uniformity of light at the second side 13 will be inconsistent with the uniformity of light at the first side 12, resulting in a poor display effect of the display device using the reflector 100 at the second side 13.
[0060] The height of the second side 13 is not less than 0.66H, so that the height of the second side 13 will not differ too much from the height of the first side 12, thus ensuring the display effect of the display device.
[0061] In some embodiments, the plurality of reflectors further includes a second reflector 20 located at the center of the reflector 100. Correspondingly, in this case, the first side 12 of the first reflector 10 may be used to connect with the second reflector 20. (See also...) Figures 6 to 8 The plurality of first reflectors 10 include a corner reflector 30 located at the corner of the reflector 100, the top of the corner reflector 30 being inclined outward and downward from the point where it intersects with the second reflector 20.
[0062] In the scheme of this embodiment, by tilting the top of the corner reflector 30 outward and downward from the intersection with the second reflector 20, a portion of the light reflected by the corner reflector 30 can be guided to the splicing point of the corner reflector 30 and other reflectors 100, thereby improving the brightness and uniformity of the light at the splicing point.
[0063] It should be noted that there is a certain height difference between the first side 12 and the second side 13 of the first reflector cup 10. It is possible that only the second side 13 of the first reflector cup 10 is lower, while the other positions are at the same height as the first side 12 of the first reflector cup 10. Alternatively, the height of the first side 12 to the second side 13 of the first reflector cup 10 gradually decreases.
[0064] In some embodiments, please refer to the following: Figure 6 The first reflector cup 10 also includes two side sides 14 connecting the first side 12 and the second side 13. At least one of the side sides 14 is arranged with its top end gradually inclined downward in the direction from the first side 12 toward the second side 13.
[0065] In the scheme of this embodiment, the top of at least one of the side sides 14 is gradually inclined downward, so that its height gradually changes from the first side 12 to the second side 13, which can improve the uniformity of light output and make the visual effect of the display device better.
[0066] Furthermore, the top of the side 14 is gradually inclined downwards, which can also form a notch to guide light toward the splicing point of the two extensions 11, thereby guiding more light to the splicing point of the two extensions 11 and making the light at the splicing point more uniform.
[0067] The size of the multiple light-emitting cups is not limited; they can be the same or different, and can be arbitrarily selected according to actual needs. No limitation is made here.
[0068] Please refer to this carefully. Figure 5 and Figures 9 to 11 In some embodiments, the reflector 100 includes a plurality of interconnected reflectors, the plurality of reflectors including a first reflector 10 located at the edge of the reflector 100 and a second reflector 20 located at the center of the reflector 100, the second reflector 20 having a dimension a along the inward and outward directions of the reflector 100; the first reflector 10 having a dimension x along the inward and outward directions of the reflector 100, where x > a.
[0069] It is understood that the extension 11 is disposed on the first reflector cup 10. Therefore, if the size of the first reflector cup 10 is made smaller than the size of the second reflector cup 20, the size of the edge reflector cup will inevitably be much smaller than the size of the second reflector cup 20, which will affect the display effect of the display device.
[0070] Therefore, in this embodiment, by making the size of the first reflector 10 larger than that of the second reflector 20, even though the first reflector 10 has the extension 11 more than the second reflector 20, the size of the cup of the first reflector 10 will not be much smaller than that of the cup of the second reflector 20, so that the cup sizes of the two are close and the display effect of the display device is better.
[0071] In a further embodiment, the dimension of the cup body of the first reflector 10 along the inner and outer directions of the reflector 100 is c, where a-1.05mm < c < a-0.7mm.
[0072] It should be noted that the current assembly offset accuracy of the reflector 100 is generally between 0.2mm and 0.3mm. The size of the second reflector cup 20 is 0.7mm to 1.05mm larger than the size of the cup body of the first reflector cup 10 in the inner and outer directions of the reflector 100. Correspondingly, the assembly offset accuracy is about 3.5 times, which can basically meet the adjustment requirements of the assembly offset error of the TV.
[0073] Similarly, in some embodiments, the extension 11 has a dimension d along the inner and outer directions of the reflector 100, where 1mm < d < 1.5mm. That is, the extension 11 has approximately 5 times the assembly offset accuracy, which can basically meet the adjustment requirements of the assembly offset error of the television.
[0074] As for the reflector 100, its surrounding height can be kept consistent because the reflector 100 itself has a certain degree of flexibility. When the reflectors 100 are spliced together, the extensions 11 of some of the reflectors 100 can be pressed down, so as to be stacked with the extensions 11 of other reflectors 100. Correspondingly, at this time, the lower extension 11 can also press down on the upper extension 11, ensuring the stability of the connection between the two.
[0075] Of course, a certain height difference can also be used so that the user does not need to press down during the installation process.
[0076] In some embodiments, the reflector 100 has a first outer side and a second outer side arranged opposite to each other; the first outer side of the reflector 100 is higher than the second outer side of the reflector 100. With this arrangement, during installation, the first outer side of the reflector 100 can be directly placed on the second outer side of another reflector 100, and no pressing action is required during installation, making the installation process simpler.
[0077] The specific implementation of the extension 11 is not limited; it can be in the form of planar layering, or in the form of stepped surface layering, etc., and is not limited here. The specific implementation of the layering splicing is not limited; it can be a splicing where the two extensions 11 completely overlap, or it can be a splicing where only a small part overlaps, and is not limited here.
[0078] Please see Figure 12 In one embodiment, the extension 11 includes a first extension 15 located on the first outer side and a second extension 16 located on the second outer side. One of the first extension 15 and the second extension 16 extends downward and then outward to form a stepped surface. The other of the first extension 15 and the second extension 16 is used to join with the stepped surface of another reflector 100.
[0079] In the scheme of this embodiment, the first extension 15 and the second extension 16, one of which is a stepped surface and the other is a plane. When splicing, the plane and the stepped surface can be stacked. Compared with the scheme of stacking planes, it can make the extension 11 of the plane not protrude from the other extension 11 after splicing, thereby making the display effect of the display device better.
[0080] In large-size backlight modules such as TVs, it is difficult to maintain a consistent OD distance throughout the entire device; typically, the distance is larger in the center and smaller at the edges. For OD architectures using vacuum-formed reflective sheets, the visual effect fluctuates drastically with changes in OD due to the light-focusing properties of the sheets, making it difficult to achieve uniform visual effects across the entire device.
[0081] In some embodiments, the reflector 100 includes a plurality of reflective cups connected to each other, the plurality of reflective cups including a first reflective cup 10 located at the edge of the reflector 100, and a protrusion 40 is provided at the top of the reflective cup for supporting the optical film.
[0082] In the solution of this embodiment, the optical film is supported by a protrusion 40 at the top of the reflector. On the one hand, the number of protrusions 40 can be set arbitrarily according to actual needs, so that the OD distance can be kept consistent throughout the whole machine and the visual effect can be improved. On the other hand, the light is allowed to pass through the air outside the protrusion 40 appropriately, thereby appropriately increasing the halo. Appropriate halo helps to solve the problem of small OD tolerance.
[0083] The location of the protrusion 40 is not limited; it can be on a side or at the corner of the reflection angle.
[0084] In one embodiment, the protrusion 40 is disposed at the junction of two adjacent sides of the reflector cup, that is, the protrusion 40 is disposed at the corner of the reflector cup. It can be understood that the strength is greater at the corner, and the protrusion 40 provides better stability for supporting the optical film.
[0085] Of course, in some embodiments, the protrusion 40 is disposed at the top of one side of the reflector cup. When disposed at the top of one side, the light transmittance from both sides of the protrusion 40 is better, which can appropriately increase the halo.
[0086] The number of protrusions 40 is not limited and can be any number selected according to actual needs. In one embodiment, the number of protrusions 40 on the top of each reflector cup is no more than two. With this setting, the number of protrusions 40 is small, which avoids the problem of shadows caused by a large number of protrusions 40.
[0087] This utility model also provides a backlight module, which includes the spliced reflective structure 1000 of the above embodiments. The specific structure of the spliced reflective structure 1000 is as described in the above embodiments. Since this backlight module adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.
[0088] This utility model also provides a display device, which includes the splicing reflective structure 1000 of the above embodiments. The specific structure of the splicing reflective structure 1000 is as described in the above embodiments. Since this display device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.
[0089] The display device can be a computer monitor, a television, etc., and is not limited here.
[0090] The splicing reflective structure, backlight module, and display device provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A spliced reflective structure, characterized in that, It includes at least two reflectors, each reflector including a first reflector cup located at the edge of the reflector cup, the first reflector cup extending outward toward the reflector cup to form an extension portion, and at least a portion of the extension portion of one reflector cup being stacked and spliced with at least a portion of the extension portion of an adjacent reflector cup.
2. The spliced reflective structure according to claim 1, characterized in that, The first reflector cup has a first side and a second side disposed opposite to each other along the direction of the inside and outside of the reflector, and the second side of the first reflector cup extends outward from the reflector to form the extension portion; The first side of the first reflector is higher than the second side of the first reflector.
3. The spliced reflective structure according to claim 2, characterized in that, The height of the first side of the first reflector is H, and the height of the second side of the first reflector is 0.66H to 0.75H; and / or, The first reflector also includes two side sides connecting the first side and the second side, and at least one of the side sides is arranged with its top end gradually inclined downward in the direction from the first side toward the second side.
4. The spliced reflective structure according to claim 1, characterized in that, The reflector includes a plurality of interconnected reflective cups, the plurality of reflective cups including a first reflective cup located at the edge of the reflector and a second reflective cup located at the center of the reflector, the second reflective cup having a dimension a along the inner and outer directions of the reflector; The first reflector cup has a dimension x along the inner and outer directions of the reflector, where x > a; and / or, The plurality of first reflectors include corner reflectors located at the corners of the reflector, the top of the corner reflector being inclined outward and downward from the point where it intersects with the second reflector.
5. The spliced reflective structure according to claim 4, characterized in that, The dimension of the first reflector cup along the inner and outer directions of the reflector is c, where a-1.05mm < c < a-0.7mm; and / or, The extension has a dimension d along the direction inside and outside the reflector, where 1mm < d < 1.5mm.
6. The spliced reflective structure according to claim 1, characterized in that, The reflector has a first outer side and a second outer side that are arranged opposite to each other; The first outer side of the reflector is higher than the second outer side of the reflector; and / or, The extension includes a first extension located on the first outer side and a second extension located on the second outer side. One of the first extension and the second extension extends downward and then outward to form a stepped surface. The other of the first extension and the second extension is used to join with the stepped surface of the adjacent reflector.
7. The spliced reflective structure according to claim 1, characterized in that, The reflector includes a plurality of interconnected reflective cups, including a first reflective cup located at the edge of the reflector. The top of the reflective cup has a protrusion for supporting the optical film.
8. The spliced reflective structure according to claim 7, characterized in that, The protrusion is located at the junction of two adjacent sides of the reflector; or, The protrusion is located at the top of one side of the reflector.
9. The spliced reflective structure according to claim 7, characterized in that, Each of the aforementioned reflectors has no more than two protrusions at its top.
10. A backlight module, characterized in that, Including the spliced reflective structure as described in any one of claims 1 to 9.
11. A display device, characterized in that, Including the spliced reflective structure as described in any one of claims 1 to 9.