Reflective paper fixing structure based on backlight module and backlight module

Abstract

This application provides a reflective paper fixing structure based on a backlight module and a backlight module. The aforementioned reflective paper fixing structure includes a back plate, a lamp plate, reflective paper, and a rotation stop. The lamp plate is disposed on the back plate, and the reflective paper is laid on the side of the lamp plate away from the back plate. The reflective paper has exposed holes, through which LEDs on the lamp plate protrude from the side of the reflective paper away from the back plate. The rotation stop is circumferentially arranged around the LEDs on the lamp plate and rotatably connected to the LEDs on the lamp plate. The rotation axis of the rotation stop intersects the plane of the lamp plate. The rotation stop is configured to be rotatable such that its projection on the reflective paper is located within the exposed holes, and further configured to be rotatable such that its projection on the reflective paper is at least partially located outside the exposed holes and on the side of the reflective paper away from the lamp plate. This aforementioned reflective paper fixing structure based on a backlight module can effectively replace adhesive bonding and ensures high manufacturing yield.

Description

Technical Field

[0001] This utility model relates to the field of display device technology, and in particular to a reflective paper fixing structure based on a backlight module and a backlight module. Background Technology

[0002] The backlight module of a display device mainly consists of a lamp board mounted on a back plate. A reflective paper is located on the side of the lamp board away from the back plate, and the LEDs on the lamp board are exposed on the reflective paper. The LEDs are then positioned towards the diffusion module, as seen in patent applications CN202110986131.1 and CN202320371308.1. Specifically, the reflective paper is typically fixed to the surface of the lamp board near the LEDs by adhesive. However, due to the concentrated increase in temperature at the lamp board, [the following text appears to be unrelated and possibly a separate sentence fragment:] Excessive adhesive or poor fixation of the reflective paper can both affect the performance of the display device. For example, the utility model patent application with application number CN201520823470.8 forms a male clip on the back plate, which passes through the LED strip and the reflective paper in sequence. Then, the female clip is fitted onto the male clip to fix the LED strip and the reflective paper. Although it can better replace adhesive bonding, it requires the LED strip to be drilled, which can easily affect the performance of the LED strip and reduce the manufacturing yield. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a reflective paper fixing structure and a backlight module based on a backlight module that can better replace adhesive bonding and ensure a high yield rate.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A reflective paper fixing structure based on a backlight module includes a back plate, a lamp plate, and reflective paper. The lamp plate is disposed on the back plate, and the reflective paper is laid on the side of the lamp plate away from the back plate. The reflective paper has exposed holes, and the lamp beads on the lamp plate protrude from the side of the reflective paper away from the back plate through the exposed holes. The reflective paper fixing structure based on the backlight module also includes a rotation stop, which is circumferentially arranged around the lamp beads on the lamp plate and rotatably connected to the lamp beads on the lamp plate. The rotation axis of the rotation stop intersects the plane of the lamp plate.

[0006] The rotation stop is configured to be rotatable such that its projection on the reflective paper is located within the exposed hole, and the rotation stop is further configured to be rotatable such that its projection on the reflective paper is at least partially located outside the exposed hole and on the side of the reflective paper away from the lamp panel.

[0007] In one embodiment, the LEDs on the LED panel are round LEDs;

[0008] The LED bead extends through the rotation stop along the thickness direction of the rotation stop and is rotatably connected to the rotation stop.

[0009] In one embodiment, the exposed hole is a rectangular hole;

[0010] The rotation stop is a rectangular stop;

[0011] The length and width of the rotation stop are each smaller than the length and width of the exposed hole, and the length of the diagonal of the rotation stop is greater than the length and / or width of the exposed hole.

[0012] In one embodiment, auxiliary stops are protruding on two opposite sidewalls of the exposed hole. The minimum distance between the two auxiliary stops is greater than the length and / or width of the rotation stop, and the minimum distance between the auxiliary stops is less than the length of the diagonal of the rotation stop.

[0013] In one embodiment, the auxiliary stop and the reflective paper are integrally formed.

[0014] In one embodiment, the rotation stop includes a rigid stop and a soft rubber rotating part. The soft rubber rotating part is sleeved on the circumferential direction of the lamp bead on the lamp plate and is rotatably connected to the lamp bead on the lamp plate. The rotation axis of the soft rubber rotating part intersects with the plane of the lamp plate. The rigid stop is arranged around the circumferential direction of the soft rubber rotating part.

[0015] The rigid stop is configured to be rotatable via the soft rubber rotating part until the projection of the rigid stop onto the reflective paper is located within the exposed hole. The rigid stop is also configured to be rotatable via the soft rubber rotating part until at least part of the projection of the rigid stop onto the reflective paper is located outside the exposed hole and on the side of the reflective paper away from the lamp plate.

[0016] In one embodiment, the rigid stop is at least partially embedded within the soft rubber rotating part.

[0017] In one embodiment, the rigid stop is a polyethylene terephthalate stop, a polycarbonate stop, or a polyvinyl chloride stop.

[0018] In one embodiment, the soft rubber rotating part is a silicone rotating part or a rubber rotating part.

[0019] A backlight module includes a diffusion module and a reflective paper fixing structure based on the backlight module as described in any of the above embodiments. The diffusion module is disposed on the side of the lamp board on which the lamp beads are disposed, and the diffusion module and the lamp beads on the lamp board are spaced apart.

[0020] In one embodiment, a support member is also connected to the side of the back plate near the lamp panel. The support member passes through the reflective paper and at least partially protrudes from the side of the lamp beads on the lamp panel away from the back plate and abuts against the side of the diffusion module near the lamp panel.

[0021] Compared with the prior art, the present invention has at least the following advantages:

[0022] This utility model discloses a reflective paper fixing structure based on a backlight module. A rotating stop is circumferentially arranged around the LEDs on the lamp board and rotatably connected to them. The reflective paper is laid on the side of the lamp board away from the back panel. The rotating stop can be rotated until its projection on the reflective paper is within an exposed hole, allowing it to pass smoothly through. Furthermore, the rotating stop can be rotated until its projection on the reflective paper is at least partially outside the exposed hole and located on the side of the reflective paper away from the lamp board. At this point, the rotating stop at least partially interferes with the light, positioning the reflective paper stop between the rotating stop and the lamp board. This effectively replaces adhesive-bonded reflective paper and eliminates the need for drilling holes in the lamp board, ensuring a high yield rate for the back panel module. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the reflective paper fixing structure based on a backlight module according to one embodiment of the present invention.

[0025] Figure 2 for Figure 1 A partial view of the reflective paper fixing structure based on the backlight module is shown.

[0026] Figure 3 for Figure 1 Another partial view of the reflective paper fixing structure based on the backlight module is shown.

[0027] Figure 4 for Figure 1Another partial view of the reflective paper fixing structure based on the backlight module is shown.

[0028] Figure 5 for Figure 1 A partial cross-sectional view of the reflective paper fixing structure based on the backlight module is shown.

[0029] Figure 6 for Figure 5 The image shows a magnified view of point A in the reflective paper fixing structure based on the backlight module. Detailed Implementation

[0030] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] This application provides a reflective paper fixing structure based on a backlight module. The aforementioned reflective paper fixing structure based on a backlight module includes a back plate, a lamp plate, reflective paper, and a rotation stop. The lamp plate is disposed on the back plate, and the reflective paper is laid on the side of the lamp plate away from the back plate. The reflective paper has exposed holes, through which LEDs on the lamp plate protrude from the side of the reflective paper away from the back plate. The rotation stop is circumferentially arranged around the LEDs on the lamp plate and rotatably connected to the LEDs on the lamp plate. The rotation axis of the rotation stop intersects the plane of the lamp plate. The rotation stop is configured to be rotatable such that its projection on the reflective paper is located within the exposed holes, and the rotation stop is further configured to be rotatable such that at least part of its projection on the reflective paper is located outside the exposed holes and on the side of the reflective paper away from the lamp plate.

[0034] The aforementioned reflective paper fixing structure based on the backlight module allows the rotating stop to be circumferentially arranged around the LEDs on the lamp board and rotatably connected to the LEDs on the lamp board. The reflective paper is laid on the side of the lamp board away from the back plate. With the cooperation of the rotating stop, it can be rotated until the projection of the rotating stop on the reflective paper is located in the exposed hole. At this time, the rotating stop can pass smoothly through the exposed hole. The rotating stop can also be rotated until at least part of the projection of the rotating stop on the reflective paper is located outside the exposed hole and on the side of the reflective paper away from the lamp board. At this time, at least part of the rotating stop will mechanically interfere with the light, so that the reflective paper stop is positioned between the rotating stop and the lamp board. This effectively replaces the adhesive reflective paper and eliminates the need for drilling holes in the lamp board, ensuring the manufacturing yield of the back plate module.

[0035] To better understand the reflective paper fixing structure based on the backlight module of this application, the following further explanation is provided:

[0036] Please refer to the following: Figures 1 to 3 One embodiment of the reflective paper fixing structure 10 based on a backlight module includes a back plate 100, a lamp plate 200, reflective paper 300, and a rotation stop 500. The lamp plate 200 is disposed on the back plate 100, and the reflective paper 300 is laid on the side of the lamp plate 200 away from the back plate 100. The reflective paper 300 has an exposure hole 301, through which LEDs 400 on the lamp plate 200 protrude from the side of the reflective paper 300 away from the back plate 100. The rotation stop 500 is arranged circumferentially around the LEDs 400 on the lamp plate 200 and is rotatably connected to the LEDs 400 on the lamp plate 200. The rotation axis of the rotation stop 500 intersects the plane of the lamp plate 200. The rotation stop 500 is configured to be rotatable such that the projection of the rotation stop 500 on the reflective paper 300 is located within the exposed hole 301, and the rotation stop 500 is also configured to be rotatable such that the projection of the rotation stop 500 on the reflective paper 300 is at least partially located outside the exposed hole 301 and on the side of the reflective paper 300 away from the lamp panel 200.

[0037] The aforementioned reflective paper 300 is based on the reflective paper 300 fixing structure 10 of the backlight module, such that the rotation stop 500 is arranged circumferentially around the lamp beads 400 on the lamp plate 200 and can be rotatably connected to the lamp beads 400 on the lamp plate 200. The reflective paper 300 is laid on the side of the lamp plate 200 away from the back plate 100. With the cooperation of the rotation stop 500, it can be rotated until the projection of the rotation stop 500 on the reflective paper 300 is located in the exposed hole 301. At this time, the rotation stop 500 can smoothly pass through the exposed hole 301. 1. The rotating stop 500 can also be rotated so that the projection of the rotating stop 500 onto the reflective paper 300 is at least partially located outside the exposed hole 301 and on the side of the reflective paper 300 away from the lamp plate 200. At this time, the rotating stop 500 at least partially interferes with the reflective paper 300 so that the reflective paper 300 is stopped and positioned between the rotating stop 500 and the lamp plate 200. This effectively replaces the adhesive reflective paper 300 and eliminates the need for opening holes in the lamp plate 200, ensuring the yield of the backplate 100 module.

[0038] Please refer to the following: Figures 2 to 4 In one embodiment, the LED beads 400 on the lamp panel 200 are circular LED beads. Furthermore, the LED beads 400 extend through the rotation stop member 500 along the thickness direction of the rotation stop member 500 and are rotatably connected to the rotation stop member 500, thereby achieving a better direct and stable rotatable connection between the rotation stop member 500 and the circular LED beads 400.

[0039] Please refer to the following: Figures 2 to 4 In one embodiment, the exposed hole 301 is a rectangular hole. Further, the rotation stop 500 is a rectangular stop. Further, the length and width of the rotation stop 500 are one-to-one smaller than the length and width of the exposed hole 301, and the length of the diagonal of the rotation stop 500 is greater than the length and / or width of the exposed hole 301. This better ensures that during the rotation of the rotation stop 500, the rotation stop 500 can rotate to a completely misaligned position with the exposed hole 301, thereby enabling the reflective paper 300 to be assembled onto the side of the lamp plate 200 where the lamp beads 400 are located via the rotation stop 500. The rotation stop 500 can rotate to a point where it mechanically interferes with the reflective paper 300, thus achieving the positioning of the reflective paper 300 between the rotation stop 500 and the lamp plate 200. This achieves both rapid assembly of the reflective paper 300 and stable setting of the reflective paper 300.

[0040] Please refer to the following: Figures 2 to 3In one embodiment, auxiliary stops 600 are protruding from two opposite sidewalls of the exposed hole 301. The minimum distance between the two auxiliary stops 600 is greater than the length and / or width of the rotation stop 500, and the minimum distance between the auxiliary stops 600 is less than the length of the diagonal of the rotation stop 500. It can be understood that if the auxiliary stops 600 are located on the sidewall containing the length of the exposed hole 301, the minimum distance between the two auxiliary stops 600 is greater than the width of the rotation stop 500; if the auxiliary stops 600 are located on the sidewall containing the width of the exposed hole 301, the minimum distance between the two auxiliary stops 600 is greater than the length of the rotation stop 500, and the minimum distance between the two auxiliary stops 600 may also be greater than the width of the rotation stop 500, increasing the operable space at the corners of the exposed hole 301, which is beneficial for the reflective paper 300 to pass through the LED bead 400 and the rotation stop 500.

[0041] Please refer to the following: Figures 2 to 3 In one embodiment, the auxiliary stop 600 and the reflective paper 300 are integrally formed, which improves the compactness and stability of the connection between the auxiliary stop 600 and the reflective paper 300.

[0042] Please refer to the following: Figures 5 to 6 In one embodiment, the rotation stop 500 includes a rigid stop 510 and a soft rubber rotating part 520. The soft rubber rotating part 520 is sleeved on the lamp bead 400 on the lamp panel 200 in the circumferential direction and is rotatably connected to the lamp bead 400 on the lamp panel 200. The rotation axis of the soft rubber rotating part 520 intersects the plane of the lamp panel 200. The rigid stop 510 is arranged around the soft rubber rotating part 520 in the circumferential direction. Furthermore, the rigid stop 510 is configured to be rotatable via the flexible rubber rotating part 520 so that its projection on the reflective paper 300 is located within the exposed hole 301. The rigid stop 510 is also configured to be rotatable via the flexible rubber rotating part 520 so that its projection on the reflective paper 300 is at least partially located outside the exposed hole 301 and on the side of the reflective paper 300 away from the lamp panel 200. The rigid stop 510 ensures a stopping effect on the reflective paper 300, while the flexible rubber rotating part 520 ensures rotational stability on the lamp bead 400. Furthermore, the rigid stop 510 is at least partially embedded within the flexible rubber rotating part 520, improving the connection stability between the rigid stop 510 and the flexible rubber connection part. Furthermore, the rigid stop 510 is a polyethylene terephthalate stop, a polycarbonate stop, or a polyvinyl chloride stop. Furthermore, the soft rubber rotating part 520 is a silicone rotating part or a rubber rotating part.

[0043] This application also provides a backlight module. One embodiment of the backlight module includes a diffusion module and a reflective paper fixing structure based on the backlight module as described in any of the above embodiments. The diffusion module is disposed on the side of the lamp board where LEDs are located, and the diffusion module and the LEDs on the lamp board are spaced apart. Further, please refer to... Figures 1 to 3 In this embodiment, the reflective paper 300 based on the backlight module's reflective paper 300 fixing structure 10 includes a back plate 100, a lamp plate 200, reflective paper 300, and a rotation stop 500. The lamp plate 200 is disposed on the back plate 100, and the reflective paper 300 is laid on the side of the lamp plate 200 away from the back plate 100. The reflective paper 300 has an exposed hole 301, through which the lamp beads 400 on the lamp plate 200 protrude from the side of the reflective paper 300 away from the back plate 100. The rotation stop 500 is arranged circumferentially around the lamp beads 400 on the lamp plate 200 and is rotatably connected to the lamp beads 400 on the lamp plate 200. The rotation axis of the rotation stop 500 intersects the plane where the lamp plate 200 is located. The rotation stop 500 is configured to be rotatable such that the projection of the rotation stop 500 on the reflective paper 300 is located within the exposed hole 301, and the rotation stop 500 is also configured to be rotatable such that the projection of the rotation stop 500 on the reflective paper 300 is at least partially located outside the exposed hole 301 and on the side of the reflective paper 300 away from the lamp panel 200.

[0044] The aforementioned backlight module employs a reflective paper fixing structure based on the backlight module, which effectively improves the performance stability and manufacturing yield of the backlight module.

[0045] Please refer to the following: Figure 1 and Figure 4 In one embodiment, a support member is also connected to the side of the back plate 100 near the lamp plate 200. The support member passes through the reflective paper 300 and at least partially protrudes from the side of the lamp bead 400 on the lamp plate 200 away from the back plate 100 and abuts against the side of the diffusion module near the lamp plate 200.

[0046] Compared with the prior art, the present invention has at least the following advantages:

[0047] The reflective paper 300 of this utility model is based on the reflective paper 300 fixing structure 10 of the backlight module, so that the rotation stop 500 is arranged circumferentially around the lamp beads 400 on the lamp plate 200 and can be rotatably connected to the lamp beads 400 on the lamp plate 200. The reflective paper 300 is laid on the side of the lamp plate 200 away from the back plate 100. With the cooperation of the rotation stop 500, it can be rotated until the projection of the rotation stop 500 on the reflective paper 300 is located in the exposed hole 301. At this time, the rotation stop 500 can smoothly pass through the exposed hole 301. 01, and the rotating stop 500 can also be rotated so that the projection of the rotating stop 500 onto the reflective paper 300 is at least partially located outside the exposed hole 301 and on the side of the reflective paper 300 away from the lamp plate 200. At this time, the rotating stop 500 at least partially interferes with the reflective paper 300 so that the reflective paper 300 is stopped and positioned between the rotating stop 500 and the lamp plate 200, effectively replacing the adhesive reflective paper 300, and eliminating the need to open the lamp plate 200, thus ensuring the yield of the back plate 100 module.

[0048] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A reflective paper fixing structure based on a backlight module, comprising a back plate, a lamp plate, and reflective paper, wherein the lamp plate is disposed on the back plate, the reflective paper is disposed on the side of the lamp plate away from the back plate, the reflective paper has exposed holes, and the lamp beads on the lamp plate protrude through the exposed holes from the side of the reflective paper away from the back plate, characterized in that, The reflective paper fixing structure based on the backlight module also includes a rotation stop, which is arranged around the circumference of the lamp beads on the lamp board and is rotatably connected to the lamp beads on the lamp board. The rotation axis of the rotation stop intersects with the plane of the lamp board. The rotation stop is configured to be rotatable such that its projection on the reflective paper is located within the exposed hole, and the rotation stop is further configured to be rotatable such that its projection on the reflective paper is at least partially located outside the exposed hole and on the side of the reflective paper away from the lamp panel.

2. The backlight module based reflective paper fixing structure according to claim 1, wherein, The LED beads on the lamp panel are round LED beads; The LED bead extends through the rotation stop along the thickness direction of the rotation stop and is rotatably connected to the rotation stop.

3. The backlight module based reflective paper fixing structure according to claim 1, wherein, The exposed hole is a rectangular hole; The rotation stop is a rectangular stop; The length and width of the rotation stop are each smaller than the length and width of the exposed hole, and the length of the diagonal of the rotation stop is greater than the length and / or width of the exposed hole.

4. The backlight module based reflective paper fixing structure according to claim 3, wherein, Auxiliary stops are protruding on the two opposite sidewalls of the exposed hole. The minimum distance between the two auxiliary stops is greater than the length and / or width of the rotation stop, and the minimum distance between the auxiliary stops is less than the length of the diagonal of the rotation stop.

5. The backlight module based reflective paper fixing structure according to claim 4, wherein, The auxiliary stop and the reflective paper are integrally formed.

6. The backlight module based reflective paper fixing structure according to claim 1, wherein, The rotation stop includes a rigid stop and a soft rubber rotating part. The soft rubber rotating part is sleeved on the lamp bead on the lamp plate in the circumferential direction and is rotatably connected to the lamp bead on the lamp plate. The rotation axis of the soft rubber rotating part intersects with the plane of the lamp plate. The rigid stop is arranged around the circumferential direction of the soft rubber rotating part. The rigid stop is configured to be rotatable via the soft rubber rotating part until the projection of the rigid stop onto the reflective paper is located within the exposed hole. The rigid stop is also configured to be rotatable via the soft rubber rotating part until at least part of the projection of the rigid stop onto the reflective paper is located outside the exposed hole and on the side of the reflective paper away from the lamp plate.

7. The backlight module based reflective paper fixing structure according to claim 6, wherein, The rigid stop is at least partially embedded in the soft rubber rotating part.

8. The backlight module based reflective paper fixing structure according to claim 6, wherein, The rigid stop portion is a polyethylene terephthalate stop portion, a polycarbonate stop portion, or a polyvinyl chloride stop portion; and / or The soft rubber rotating part is a silicone rotating part or a rubber rotating part.

9. A backlight module, characterized in that, The invention includes a diffusion module and a reflective paper fixing structure based on a backlight module as described in any one of claims 1 to 8, wherein the diffusion module is disposed on the side of the lamp board on which the lamp beads are disposed, and the diffusion module is spaced apart from the lamp beads on the lamp board.

10. The backlight module of claim 9, wherein, A support member is also connected to the side of the back plate near the lamp plate. The support member passes through the reflective paper and at least partially protrudes from the side of the lamp on the lamp plate away from the back plate and abuts against the side of the diffusion module near the lamp plate.

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