Splicing type reflecting cover and backlight module

Abstract

The utility model provides a splicing type reflecting cover and a backlight module, the splicing type reflecting cover comprises at least two adjacent splicing plates, each splicing plate comprises a main body part and an edge part, the edge part is arranged on the edge of the main body part, and the height of the edge part is smaller than that of the main body part; the edge parts of the adjacent splicing plates are partially stacked to form splicing areas, and the total height of the splicing areas is smaller than or equal to the height of the main body part. The splicing type reflecting cover can effectively reduce splicing dark lines.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a splicing reflector and a backlight module. Background Technology

[0002] In large-size backlight modules, such as those used in televisions, when using vacuum-formed reflective sheets, the sheets cannot be completely formed into large sizes, such as 85-inch or 98-inch structures due to manufacturing limitations. They are usually assembled using a splicing method. However, when two or more spliced ​​panels are used to form a large reflector, dark lines often appear at the splicing points, resulting in poor subjective visual effects. Utility Model Content

[0003] This application provides a splicing reflector and a backlight module, which can effectively reduce the dark lines in the splicing.

[0004] This application provides a modular reflector, including:

[0005] At least two adjacent splicing panels, each splicing panel comprising a main body and an edge portion, the edge portion being located at the edge of the main body, and the height of the edge portion being less than the height of the main body;

[0006] The edge portions of adjacent splicing panels are stacked to form a splicing area, and the total height of the splicing area is less than or equal to the height of the main body.

[0007] This application embodiment also provides a backlight module, including:

[0008] Circuit board;

[0009] A light-emitting unit, wherein the light-emitting unit is disposed on the circuit board;

[0010] A modular reflector is mounted on the circuit board and surrounds the light-emitting unit.

[0011] In the splicing reflector and backlight module provided in this application embodiment, the splicing reflector includes at least two adjacent splicing panels. Each splicing panel includes a main body and an edge portion. The edge portion is located at the edge of the main body, and its height is less than that of the main body. When multiple splicing panels are spliced, the edge portions of adjacent splicing panels are stacked to form a splicing area. The total height of this splicing area is less than or equal to the height of the main body. This prevents the splicing panels from becoming dark due to insufficient light dispersion caused by increased stacking height, thus avoiding display defects. Furthermore, it also prevents gaps from forming due to material shrinkage. Attached Figure Description

[0012] 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 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.

[0013] Figure 1 This is a schematic diagram of the structure of the spliced ​​reflector provided in the embodiment of this application.

[0014] Figure 2 This is a schematic diagram of the structure of the splicing plate provided in an embodiment of this application.

[0015] Figure 3 for Figure 2 A magnified view of part A.

[0016] Figure 4 This is a schematic diagram of the structure of the first reflective cup provided in an embodiment of this application.

[0017] Figure 5 This is a schematic diagram of the structure of the second reflective cup provided in an embodiment of this application.

[0018] Figure 6 This is a schematic diagram of the structure of the third reflective cup provided in an embodiment of this application. Detailed Implementation

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0020] This application provides a splicing reflector and a backlight module, which can effectively reduce dark lines during splicing. The following is a detailed description with reference to the accompanying drawings.

[0021] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the spliced ​​reflector provided in the embodiment of this application.

[0022] This application provides a modular reflector 100, which includes at least two adjacent panel 10s, all of which have the same or similar structures. The panel 10s can be manufactured using a vacuum forming process. Multiple panel 10s can be joined to form a larger modular reflector 100 to accommodate large-size backlight modules.

[0023] Please see Figure 2 , Figure 2 This is a schematic diagram of the structure of the splicing plate provided in an embodiment of this application.

[0024] The splicing panel 10 includes a main body 11 and an edge portion 12. The edge portion 12 is located at the edge of the main body 11, and its height is less than that of the main body 11. The edge portions 12 of adjacent splicing panels 10 are partially stacked to form a splicing area. The total height of the splicing area is less than that of the main body 11, so that the splicing area and the main body 11 have the same light reflection path, thereby making the splicing area and the main body 11 have similar or identical optical effects.

[0025] When multiple splicing panels 10 are spliced ​​together, the edges 12 of adjacent splicing panels 10 are stacked in layers to form a splicing area. The total height of the splicing area is less than or equal to the height of the main body 11. In this way, when the splicing panels 10 are stacked, the light will not be unable to diffuse due to the increase in stacking height, resulting in splicing dark lines and poor display, and splicing gaps will not be generated due to material shrinkage.

[0026] The height of the edge portion 12 gradually decreases in the direction away from the main body 11. The height of the splicing panel 10 varies in a stepped manner, that is, the height of the splicing panel 10 decreases from the center to the periphery. The splicing panel 10 has sides and corners. The height of the main body 11 is greater than the height of the edge portion 12 corresponding to the side of the splicing panel 10, and the height of the edge portion 12 corresponding to the side of the splicing panel 10 is greater than the height of the edge portion 12 corresponding to the corner of the splicing panel 10. It can be understood that when multiple splicing panels 10 are spliced ​​together, the corners of the multiple splicing panels 10 are stacked. For example, the number of layers stacked on the side of the splicing panel 10 can be two, and the total height of the splicing area corresponding to the side of the splicing panel 10 must be less than or equal to the height of the main body 11; or, for example, the number of layers stacked at the corner of the splicing panel 10 can be four, but the total height of the splicing area corresponding to the multiple corners must be less than or equal to the height of the main body 11, in order to avoid causing dark splicing lines that lead to poor display.

[0027] Please see Figure 3 , Figure 3 for Figure 2A partial enlarged view (A) shows the splicing panel 10, which is mainly composed of three types of reflective cups. Each reflective cup includes a bottom wall and side walls, with the side walls surrounding the bottom wall. The bottom wall has an opening 16 for one or more light-emitting units to pass through. The splicing panel 10 includes multiple first reflective cups 13, multiple second reflective cups 14, and multiple third reflective cups 15. The bottom walls of all three reflective cups have openings 16. Multiple first reflective cups 13 are sequentially connected to form a main body 11, and multiple second reflective cups 14 and multiple third reflective cups 15 are sequentially connected to form an edge portion 12. The multiple second reflective cups 14 are correspondingly positioned to the sides of the main body 11, and the multiple third reflective cups 15 are correspondingly positioned to the corners of the main body 11. Specifically, each second reflective cup 14 corresponds to one first reflective cup 13, and each third reflective cup 15 is connected to two second reflective cups 14.

[0028] Please see Figure 4 , Figure 4 This is a schematic diagram of the structure of the first reflector cup provided in an embodiment of this application. The first reflector cup 13 has an axisymmetric structure, which facilitates the arraying of multiple first reflector cups 13 and enhances the effect on light.

[0029] Please see Figure 5 , Figure 5 This is a schematic diagram of the structure of the second reflective cup provided in an embodiment of this application. The height of the second reflective cup 14 varies in a gradient, with the highest part corresponding to the first reflective cup 13.

[0030] Please see Figure 6 , Figure 6 This is a schematic diagram of the structure of the third reflector cup provided in an embodiment of this application. Among the four corners of the third reflector cup 15, the corner connected to the first reflector cup 13 has the highest height, the two corners connected to the second reflector cup 14 have the next highest height, and the remaining corner has the lowest height, so the height of the third reflector cup 15 changes in a step-like manner.

[0031] Specifically, the height of the cup wall of the second reflective cup 14 is not greater than the height of the cup wall of the first reflective cup 13, and the height of the cup wall of the third reflective cup 15 is not greater than the height of the cup wall of the second reflective cup 14.

[0032] Please continue reading. Figure 1The edge portion 12 also includes an extension portion 17, which is connected to the second reflector cup 14 and the third reflector cup 15. The extension portion 17 extends from the second reflector cup 14 and the third reflector cup 15 in a direction away from the first reflector cup 13; the extension portions 17 of adjacent splicing panels 10 are stacked. The extension portions 17 overlap to facilitate splicing of two splicing panels 10, without causing splicing gaps due to material shrinkage, and without affecting the original shape of the second reflector cup 14 and the third reflector cup 15, thus maintaining the utilization rate of light.

[0033] The extension 17 is bent to form a snap-fit, so that when two splicing panels 10 are spliced, the extension 17 of one splicing panel 10 can snap onto the extension 17 of the other splicing panel 10. On the one hand, this can improve the efficiency of splicing multiple splicing panels 10, and on the other hand, the multiple splicing panels 10 can be detachably connected, making it easy to replace and maintain.

[0034] The total thickness of the splicing area is equal to the thickness of the main body 11. On the one hand, this avoids the splicing area being too thick and blocking the light-emitting surface of the light-emitting unit, thus affecting the optical effect; on the other hand, since the thickness of the splicing area is equal to the thickness of the main body 11, it helps to improve the overall uniformity of the spliced ​​reflector 100.

[0035] This application provides a backlight module, which includes a circuit board, a light-emitting unit, and a splicing reflector 100. The splicing reflector 100 is the same as the splicing reflector 100 in the above embodiment. Since the reflector has better optical effect when spliced, the backlight module has better optical effect.

[0036] The light-emitting unit is mounted on the circuit board, and the spliced ​​reflector 100 is mounted on the circuit board, surrounding the light-emitting unit.

[0037] Furthermore, the backlight module also includes an optical film, which is disposed on the light-emitting side of the spliced ​​reflector 100. The optical film can homogenize the light from the light-emitting side of the spliced ​​reflector 100, thereby giving the entire backlight module a better light emission effect.

[0038] In the above-described embodiments of the present application, the splicing reflector 100 and the backlight module include at least two adjacent splicing panels 10. Each splicing panel 10 includes a main body 11 and an edge portion 12. The edge portion 12 is located at the edge of the main body 11, and its height is less than that of the main body 11. When multiple splicing panels 10 are spliced ​​together, the edge portions 12 of adjacent splicing panels 10 are stacked to form a splicing area. The total height of this splicing area is less than or equal to the height of the main body 11. This prevents the splicing panels 10 from becoming dark due to insufficient light dispersion caused by increased stacking height, thus avoiding display defects caused by material shrinkage.

[0039] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0040] In the description of this application, 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 technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0041] The splicing reflector and backlight module 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, and the descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A modular reflector, characterized in that, include: At least two adjacent splicing panels, each splicing panel comprising a main body and an edge portion, the edge portion being located at the edge of the main body, and the height of the edge portion being less than the height of the main body; The edge portions of adjacent splicing panels are stacked to form a splicing area, and the total height of the splicing area is less than or equal to the height of the main body.

2. The modular reflector according to claim 1, characterized in that, The height of the edge portion gradually decreases in the direction away from the main body portion.

3. The modular reflector according to claim 1, characterized in that, The splicing panel includes multiple first reflective cups, multiple second reflective cups, and multiple third reflective cups. The multiple first reflective cups are connected in sequence to form the main body, and the multiple second reflective cups and the multiple third reflective cups are connected in sequence to form the edge. The multiple second reflective cups are arranged corresponding to the sides of the main body, and the multiple third reflective cups are arranged corresponding to the corners of the main body.

4. The modular reflector according to claim 3, characterized in that, The height of the second reflective cup wall is not greater than the height of the first reflective cup wall, and the height of the third reflective cup wall is not greater than the height of the second reflective cup wall.

5. The modular reflector according to claim 3, characterized in that, The edge portion also includes an extension portion, which is connected to the second reflector cup and the third reflector cup. The extension portion extends from the second reflector cup and the third reflector cup in a direction away from the first reflector cup. The extension portions of adjacent splicing panels are stacked.

6. The modular reflector according to claim 5, characterized in that, The extension is bent to form a buckle.

7. The modular reflector according to claim 3, characterized in that, The first reflector cup has an axisymmetric structure.

8. The modular reflector according to claim 3, characterized in that, The bottom walls of the first reflector cup, the second reflector cup, and the third reflector cup all have openings.

9. The modular reflector according to any one of claims 1 to 8, characterized in that, The total thickness of the splicing area is equal to the thickness of the main body.

10. A backlight module, characterized in that, include: Circuit board; A light-emitting unit, wherein the light-emitting unit is disposed on the circuit board; A modular reflector is mounted on the circuit board and surrounds the light-emitting unit.

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