Backlight module and display device

Abstract

The utility model discloses a backlight module and a display device. The backlight module comprises a back plate, and the back plate comprises a back plate frame and a back plate bottom plate detachably connected with the back plate frame; the lamp panel is fixed to the side, facing the back plate bottom plate, of the back plate frame so that the lamp panel can be conveniently detached from the side of the back plate bottom plate. By means of the structure, disassembly from one side of the back plate is achieved, and the lamp panel is convenient to replace.

Description

Technical Field

[0001] The utility model relates to the field of display panels, in particular to a backlight module and a display device. Background Art

[0002] With the development of multimedia, miniLED is widely used as a direct display backlight source with advantages such as high brightness, high contrast, partial display, and narrow border. There are many miniLED light board fixed structures on the market, but the general miniLED light board structure is fixed. The disassembly process usually starts from the front board, that is, disassembling each component one by one from top to bottom.

[0003] In the prior art, to replace the light board, it is necessary to disassemble the front panel, display panel, rubber frame and optical film in sequence before disassembling the light board. This greatly reduces the efficiency of installing and disassembling the light board and accelerates the wear of other components, increasing costs. Utility Model Content

[0004] In order to solve the problem that a light panel is difficult to disassemble, the present application provides a backlight module and a display device.

[0005] To solve the above-mentioned problems, the first aspect of the present application provides a backlight module, wherein the backlight module includes: a back panel, including a back panel frame and a back panel base plate detachably connected to the back panel frame; a light board, fixed to the side of the back panel frame facing the back panel base plate, so as to facilitate the removal of the light board from one side of the back panel base plate.

[0006] Wherein, the back panel frame includes a first frame extending in a direction parallel to the back panel bottom plate, and the light board is fixed to a side of the first frame facing the back panel bottom plate.

[0007] Wherein, the backplane frame also includes a second frame arranged around the backplane bottom plate and vertically connected to the backplane bottom plate; wherein, the first frame is arranged at an end of the second frame away from the backplane bottom plate to be set at a preset distance from the backplane bottom plate.

[0008] The light board is fixed to the first frame on the side of the back panel bottom plate through a fixing part, and is spaced apart from the back panel bottom plate; the preset distance between the first frame and the back panel bottom plate is greater than the thickness of the light board.

[0009] The fixing part includes a screw passing through the first frame and the light board, and a nut arranged on the side of the light board away from the first frame and fixed to the screw, wherein the diameter of the nut is larger than the diameter of the screw so as to support and fix the light board to the first frame.

[0010] Wherein, the first frame is provided with a thread matching with the screw in an opening corresponding to the screw so as to match with the screw.

[0011] Wherein, the backlight module also includes an optical film, and the optical film is arranged on the side of the first frame away from the light board, so as to separate the optical film and the light board through the first frame; wherein, the length of the screw is greater than the sum of the thicknesses of the first frame and the light board, and the distance between the nut and the first frame is adjusted by rotating the screw, thereby adjusting the distance between the light board and the optical film.

[0012] Wherein, a plurality of through holes communicating with the outside are provided on the back panel bottom plate to improve the heat dissipation effect of the lamp panel.

[0013] Wherein, a fan is also installed on one side of the back panel base close to the light panel.

[0014] A second aspect of the present application further provides a display device, wherein the display device comprises a display panel and the backlight module described in any embodiment of the first aspect, and the display panel is arranged on a side of the optical film away from the back plate.

[0015] The beneficial effect of the present application is that by setting the light board on the side of the back panel frame facing the back panel bottom plate, the light board can be removed from one side of the back panel bottom plate after the back panel bottom plate is disassembled, thereby facilitating the replacement of the light board and solving the problem of cumbersome light board disassembly in the top-down disassembly method. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic structural diagram of an embodiment of a display backlight module of the present application;

[0018] Figure 2 This is a structural schematic diagram of a specific embodiment of the backlight module of the present application;

[0019] Figure 3 This is a schematic diagram of a top view of a specific embodiment of the backplane base plate of the present application;

[0020] Figure 4 It is a structural schematic diagram of a specific embodiment of the display device of the present application.

[0021] Description of symbols

[0022] 11 back panel; 12 light panel; 111 back panel frame; 112 back panel bottom plate; 1111 first frame; 1112 second frame; 121 fixing member; 13 optical film; 14 rubber frame; 15 front frame; 16 display panel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms of "a", "said", and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless otherwise clearly indicated above, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0025] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the objects associated with each other are in an "or" relationship. The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0026] It should be understood that the terms "include", "comprises" or any other variations used herein are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "includes..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0027] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The presence of the phrase at each location in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] This application provides a backlight module. For details, please refer to Figure 1 , Figure 1 FIG. 1 is a schematic diagram of the structure of an embodiment of a display backlight module of the present application. Figure 1 As shown, the backlight module includes a back panel 11 and a light panel 12 .

[0030] The backplane 11 includes a backplane frame 111 and a backplane bottom plate 112 detachably connected to the backplane frame 111. Specifically, the backplane frame 111 and the backplane bottom plate 112 can be connected by a rotating fixture or a snap-fit ​​fixture, which is not limited here.

[0031] The light board 12 is fixed to the side of the backplane frame 111 facing the backplane bottom plate 112, so as to facilitate the removal of the light board 12 from the side of the backplane bottom plate 112. The backplane frame 111 is mainly used to fix the light board 12. An LED light is arranged on the surface of the light board 12 away from the backplane bottom plate 112 to provide light source to the display panel for display.

[0032] In this embodiment, after removing the back panel base plate 112 , the lamp board 12 can be directly replaced without having to start from the display panel side, thereby improving the efficiency of replacing the lamp board 12 .

[0033] In a specific embodiment, the backplane frame 111 includes a first frame 1111 parallel to the backplane bottom plate 112, wherein the light board 12 is fixed to the side of the first frame 1111 facing the backplane bottom plate 112, that is, arranged on the side of the first frame 1111 close to the backplane bottom plate 112. The backplane frame 111 also includes a second frame 1112, which is vertically arranged around the backplane bottom plate 112 and fixedly connected to the backplane bottom plate 112 to form a backplane cavity with the backplane bottom plate 112, and the light board 12 is arranged in the backplane cavity.

[0034] The first frame 1111 is disposed at one end of the second frame 1112 away from the back panel bottom plate 112, and is spaced a preset distance from the back panel bottom plate 112. The preset distance between the first frame 1111 and the back panel bottom plate 112 is at least not less than the thickness of the light board 12, so that the light board 12 can be accommodated in the back panel cavity.

[0035] In a preferred embodiment, the light board 12 is fixed to the first frame 1111 by a fixing member 121, and is spaced apart from the back panel bottom plate 112. The preset distance between the first frame 1111 and the back panel bottom plate 112 is greater than the thickness of the light board 12, so that the distance between the light board 12 and the back panel bottom plate 112 can be adjusted. In other embodiments, the light board 12 can also be arranged in close contact with the back panel bottom plate 112, and the preset distance between the first frame 1111 and the back panel bottom plate 112 is exactly equal to the thickness of the light board 12, which is not limited here.

[0036] The control end of the fixing member 121 is arranged on the side of the light board 12 facing the back panel bottom plate 112 , so that after the back panel bottom plate 112 is removed, the light board 12 can be removed through the fixing member 121 .

[0037] In a preferred embodiment, the fixing member 121 is a rotating fixing member. Specifically, the fixing member 121 includes a screw (not numbered in the figure) that passes through the first frame 1111 and the light board 12, and a nut that is arranged on the side of the light board 12 away from the first frame 1111 and fixed to the screw. The diameter of the nut is larger than the diameter of the screw to support the light board 12 and fix the light board 12 on the first frame 1111. The fixing member 121 includes at least two to fix the light board 12 and prevent the light board 12 from shaking. The side wall of the screw is provided with a thread, and the screw can be driven to rotate by rotating the nut to disassemble and install the light board 12.

[0038] Specifically, an opening for accommodating a screw is provided on the first frame 1111. Preferably, a thread matching the side wall of the screw is provided in the opening to match the spiral on the side wall of the screw, so that by rotating the screw, the fixing member 121 moves away from or close to the first frame 1111, thereby completing disassembly and installation. In other embodiments, a nut may also be provided on the side of the first frame 1111 away from the light board 12, and the inner wall of the nut may be provided with a thread, and the screw and the nut may be separated by rotating the screw, which is not limited here.

[0039] In a specific embodiment, the backlight module further includes an optical film 13. For details, please refer to Figure 2 , Figure 2 FIG. 1 is a schematic diagram of a structure of a specific embodiment of the backlight module of the present application. Figure 2 As shown, the optical film 13 is disposed on the side of the first frame 1111 away from the light board 12. The first frame 1111 has a certain thickness, so that the optical film 13 and the light board 12 are separated by the first frame 1111. The thickness of the first frame 1111 is at least greater than the minimum light emission requirement.

[0040] It should be noted that the uniformity of brightness is related not only to the light source spacing P and a reasonable diffuser, but also to the distance T between the light source's emitting surface and the bottom of the diffuser. The smaller P is, the higher the brightness and uniformity, and T can be made smaller, but the cost is very high; the larger P is, the lower the brightness, and it is necessary to make T larger to maintain the uniformity of brightness.

[0041] In a preferred embodiment, the length of the screw is greater than the sum of the thicknesses of the first frame 1111 and the light board 12, so that by rotating the screw to a certain extent, the distance between the nut and the first frame 1111 is adjusted, thereby adjusting the distance between the light board 12 and the optical film 13. The light board 12 is arranged in close contact with the nut and is spaced a certain distance from the first frame 1111, and the optical film 13 is arranged in close contact with the first frame 1111, so that the optical film 13 is supported by the first frame 1111.

[0042] In a more preferred embodiment, the length of the light board 12 in the horizontal direction is greater than the length of the optical film 13, so as to prevent the screw from pressing against the optical film 13 when the screw is rotated to protrude from the first frame 1111. The screw is arranged at a portion of the light board 12 longer than the optical film 13, so that the screw and the optical film 13 are arranged in a staggered manner.

[0043] It should be noted that the optical film 13 specifically includes a diffuser plate arranged close to the first frame 1111, a QD film arranged on the diffuser plate away from the first frame 1111, a composite film arranged on the QD film away from the diffuser plate, and a diffuser sheet arranged on the composite film away from the QD film.

[0044] Furthermore, the backplane bottom plate 112 is provided with a plurality of through holes connected to the outside. Figure 3 , Figure 3 This is a top view of a specific embodiment of the backplane base plate of the present application. Figure 3 As shown, a plurality of through holes 1121 communicating with the outside are provided on the back panel bottom plate 112, and the heat dissipation effect of the light board 12 is improved through the through holes 1121. The more LED lights are arranged on the light board 12, the better the light emission is, but the more heat is generated. By providing a plurality of through holes 1121, the heat dissipation of the light board 12 can be well performed. Furthermore, a fan 1122 is installed on one side of the back panel bottom plate 112 close to the light board 12. When the light board 12 is working, the fan is powered on to further improve the heat dissipation capacity of the light board 12.

[0045] Furthermore, the present application also provides a display device, for details, please refer to Figure 4 , Figure 4 FIG. 1 is a schematic diagram of a structure of a specific embodiment of the display device of the present application. Figure 4As shown, the display device includes a display panel 16 and a backlight module, wherein the backlight module is the backlight module described in any of the above embodiments, and is used to provide light source for the display panel 16. The display panel 16 is arranged on a side of the optical film 13 in the backlight module away from the back plate 11.

[0046] In a specific embodiment, the display device further includes a rubber frame 14 that supports the display panel 16 and the optical film 13. Specifically, the rubber frame 14 includes a step 141 extending toward the inner side of the display panel 16, wherein the step 141 is arranged in parallel between the display panel 16 and the optical film 13 to support the display panel 16 so that the display panel 16 and the optical film 13 are arranged at intervals. Specifically, the rubber frame 14 includes a support column (unnumbered) arranged along a first frame 1111 perpendicular to the back plate 11, for supporting and fixing the step 141. Preferably, the step 141 is arranged in the middle position of the support column so that a portion of the support column protrudes from the display panel 16, thereby forming a groove for accommodating the display panel 16. Specifically, a partition is also arranged on the step 141, which is not limited here.

[0047] Furthermore, the display device further includes a front frame 15, which is disposed around the display panel 16 to fix the display panel. Specifically, the front frame 15 includes a side frame perpendicular to the back panel bottom plate 112, and a front frame parallel to the back panel bottom plate 112. The front frame is coated around the display panel 16. The side frame is coated on the side wall portion of the back panel 11, and is connected to the back panel frame 111 of the back panel 11 to form a complete whole.

[0048] In a further embodiment, the plastic frame 14 also includes a portion disposed between the side frames of the front frame 15 and the back panel frame 111 of the back panel 11 , which is not limited herein.

[0049] Furthermore, the support column of the plastic frame 14 extends to the front frame 15 to abut against the front frame 15 , and can play a partial supporting role, which is not limited here.

[0050] The beneficial effect of the present application is that by setting the light board on the side of the back panel frame facing the back panel bottom plate, the light board can be removed from one side of the back panel bottom plate after the back panel bottom plate is disassembled, thereby facilitating the replacement of the light board and solving the problem of cumbersome light board disassembly in the top-down disassembly method.

[0051] The above are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A backlight module that is easy to disassemble and assemble, characterized in that: The backlight module comprises: A backplane, comprising a backplane frame and a backplane bottom plate detachably connected to the backplane frame; The light board is fixed to the side of the backplane frame facing the backplane bottom plate, so as to facilitate the removal of the light board from the side of the backplane bottom plate.

2. The backlight module according to claim 1, characterized in that: The backplane frame includes a first frame extending in a direction parallel to the backplane bottom plate, and the light board is fixed to a side of the first frame facing the backplane bottom plate.

3. The backlight module according to claim 2, characterized in that: The backplane frame also includes a second frame which is arranged around the backplane bottom plate and vertically connected to the backplane bottom plate; wherein the first frame is arranged at an end of the second frame away from the backplane bottom plate to be spaced a preset distance from the backplane bottom plate.

4. The backlight module according to claim 3, characterized in that: The light board is fixed to the side of the first frame toward the back panel bottom plate through a fixing part, and is spaced apart from the back panel bottom plate; wherein the preset distance between the first frame and the back panel bottom plate is greater than the thickness of the light board.

5. The backlight module according to claim 4, characterized in that: The fixing member includes a screw passing through the first frame and the light board, and a nut arranged on the side of the light board away from the first frame and fixed to the screw, wherein the diameter of the nut is larger than the diameter of the screw to support and fix the light board to the first frame.

6. The backlight module according to claim 5, characterized in that: The first frame is provided with a thread matching with the screw in an opening corresponding to the screw so as to match with the screw.

7. The backlight module according to claim 5, characterized in that: The backlight module further comprises an optical film, which is arranged on a side of the first frame away from the light board, so that the optical film and the light board are separated by the first frame; The length of the screw is greater than the sum of the thicknesses of the first frame and the light board, and the screw is rotated to adjust the distance between the nut and the first frame, thereby adjusting the distance between the light board and the optical film.

8. The backlight module according to claim 1, characterized in that: The back panel bottom plate is provided with a plurality of through holes connected to the outside world to improve the heat dissipation effect of the lamp panel.

9. The backlight module according to claim 8, characterized in that: A fan is also installed on one side of the back panel base plate close to the light panel.

10. A display device, characterized in that: The display device comprises a display panel and the backlight module according to any one of claims 1 to 9, wherein the display panel is arranged on a side of the optical film away from the back plate.

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