Backlight module and display device

Abstract

The utility model discloses a backlight module and a display device. The backlight module comprises a rubber frame and back plate composite part, the rubber frame and back plate composite part comprises a rubber frame and a back plate which are connected with each other, the rubber frame and the back plate are subjected to secondary forming, the rubber frame surrounds the back plate, a containing space is defined by the rubber frame and the back plate, and the rubber frame is provided with an avoiding groove; one end of the movable retaining wall is rotatably connected to the rubber frame, the other end of the movable retaining wall is a free end, the movable retaining wall is configured to rotate back and forth between a first position and a second position, and when the movable retaining wall is located at the first position, in the thickness direction, the free end of the movable retaining wall protrudes out of the end, away from the back plate, of the rubber frame; when the movable retaining wall is located at the second position, the movable retaining wall is contained in the avoiding groove; the optical assembly is arranged in the containing space. By means of the arrangement, the movable retaining wall can limit the display panel and can be contained in the receding groove, and the problems that the display panel deviates and is prone to breakage in the assembling process of the display device in the related technology can be solved.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a backlight module and display device. Background Technology

[0002] With the rapid development of display technology, LCD (Liquid Crystal Display) technology has emerged and become one of the most widely used display technologies today. Among them, narrow bezels and ultra-thin features have always been the goals pursued by LCD display technology.

[0003] Display devices generally include a display panel and a backlight module. In related technologies, narrow bezel display devices are prone to problems such as display panel misalignment, out-of-specification dimensions, and easy breakage of the display panel during the assembly process of the display panel and backlight module. Utility Model Content

[0004] This application provides a backlight module and a display device to solve the problems of display panel misalignment and easy breakage during the assembly process of narrow bezel display devices in related technologies.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a backlight module for use in a display device, comprising:

[0006] A composite frame and back panel, comprising a frame and a back panel connected to each other; the frame and the back panel are formed in a secondary process, the frame surrounds the back panel and forms a receiving space with the back panel; the frame is provided with a clearance groove.

[0007] A movable retaining wall has one end rotatably connected to the frame and the other end free. The movable retaining wall is configured to rotate back and forth between a first position and a second position. When the movable retaining wall is in the first position, its free end protrudes from the frame away from the back plate in the thickness direction to limit the display panel of the display device. When the movable retaining wall is in the second position, it is received within the clearance groove.

[0008] Optical components are disposed within the containment space.

[0009] In some embodiments, the clearance groove is disposed on the outer side wall of the rubber frame, and one end of the movable retaining wall is rotatably connected to the side wall of the clearance groove;

[0010] The movable retaining wall is configured to rotate back and forth between the first position and the second position from the side of the clearance slot away from the receiving space.

[0011] In some embodiments, the frame includes a first sidewall and a second sidewall disposed opposite to each other along the length direction of the backlight module, and a third sidewall and a fourth sidewall disposed opposite to each other along the width direction of the backlight module.

[0012] The first sidewall and / or the second sidewall are provided with the clearance groove, and the sidewall of the clearance groove is rotatably connected to the movable retaining wall; and / or,

[0013] The third sidewall and / or the fourth sidewall are provided with the clearance groove, and the sidewall of the clearance groove is rotatably connected to the movable retaining wall.

[0014] In some embodiments, a plurality of clearance slots are provided in the central region of the first sidewall along the width direction of the backlight module; and / or,

[0015] Along the width direction of the backlight module, a plurality of clearance slots are provided in the central region of the second sidewall; and / or,

[0016] Along the length of the backlight module, a plurality of clearance slots are provided in the central region of the third sidewall; and / or,

[0017] The fourth sidewall is provided with a plurality of clearance grooves at the end near the first sidewall and / or at the end near the second sidewall;

[0018] The multiple clearance slots are spaced apart from each other, and the sidewall of each clearance slot can be rotatably connected to the movable retaining wall.

[0019] In some embodiments, the backlight module further includes a connecting component, which includes a rotating shaft and a movable component. The opposite ends of the rotating shaft are respectively embedded in the opposite two side walls of the clearance groove. The movable barrier includes a rotating part and a limiting part connected to each other. The rotating part is cylindrical and is sleeved on the outer side of the rotating shaft.

[0020] The movable component is movably disposed within the bottom wall of the clearance groove and is positioned corresponding to the rotating part; the outer surface of the rotating part is provided with a plurality of first ratchet teeth, and the surface of the movable component near the rotating part is provided with second ratchet teeth;

[0021] The movable retaining wall is configured to rotate back and forth between the first position and the second position about the pivot, and to drive the movable component to move back and forth within the bottom wall of the clearance groove by contacting the first ratchet and the second ratchet; the second ratchet is used to engage with the first ratchet when the movable retaining wall is in the first position or in the second position to limit the movable retaining wall.

[0022] In some embodiments, the bottom wall of the clearance groove is provided with a guide groove corresponding to the position of the rotating part, and the bottom wall of the guide groove is provided with a mounting groove.

[0023] The movable component includes a fixed body, a spring, a spring fixing shaft, and a spring force transmission seat; the spring and the spring fixing shaft are disposed in the mounting groove, and the spring is sleeved on the outer side of the spring fixing shaft; the fixed body is disposed in the guide groove, and the spring force transmission seat is disposed on the side of the spring near the fixed body, and is in contact with the spring and the fixed body respectively; the surface of the fixed body near the rotating part is provided with the second ratchet.

[0024] In some embodiments, the optical component includes a reflective sheet, a light guide plate, and a composite film stacked sequentially; the backlight module also includes a light-shielding tape disposed on the side of the frame away from the back plate and extending to the side of the composite film away from the light guide plate.

[0025] The thickness of the back plate is 0.15mm-0.25mm; and / or,

[0026] The thickness of the reflective sheet is 0.08mm-0.1mm; and / or,

[0027] The thickness of the light guide plate is 0.5mm-0.6mm; and / or,

[0028] The thickness of the composite membrane is 0.08mm-0.1mm.

[0029] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide a display device, comprising:

[0030] The display panel includes an array substrate and a counter substrate disposed opposite to each other, a first polarizer disposed on the side of the array substrate away from the counter substrate, and a second polarizer disposed on the side of the counter substrate away from the array substrate.

[0031] The backlight module is any of the backlight modules described above;

[0032] The display panel is disposed on the side of the backlight module's frame away from the back panel, and the backlight module is used to provide a backlight for the display panel.

[0033] In some embodiments, the display device has a first state and a second state;

[0034] When the display device is in the first state, the movable barrier is in the first position, and there is a first gap between the movable barrier and the side of the display panel; the first gap is 0.1mm-0.2mm; when the display device is in the second state, the movable barrier is in the second position.

[0035] In some embodiments, the display device further includes a conductive tape configured such that, when the display device is in the second state, one end is attached to the surface of the counter substrate away from the array substrate, and the other end extends from the outer side wall of the frame to the surface of the back plate away from the display panel.

[0036] And / or, the thickness of the array substrate is 0.15mm-0.25mm;

[0037] And / or, the thickness of the substrate is 0.15mm-0.25mm;

[0038] And / or, the thickness of the first polarizer is 0.081mm-0.091mm;

[0039] And / or, the thickness of the second polarizer is 0.072mm-0.082mm.

[0040] The beneficial effects of this application are as follows: Unlike the prior art, this application discloses a backlight module and a display device. The backlight module is applied to the display device and includes: a frame-backplate composite component, including a frame and a backplate connected to each other. The frame and the backplate are formed in a secondary manner. The frame surrounds the backplate and forms a receiving space with the backplate. The frame is provided with a relief groove; a movable baffle, one end of which is rotatably connected to the frame and the other end is a free end. The movable baffle is configured to rotate back and forth between a first position and a second position. When the movable baffle is in the first position, in the thickness direction, the free end of the movable baffle protrudes from the end of the frame away from the backplate to limit the display panel of the display device. When the movable baffle is in the second position, the movable baffle is received in the relief groove; and an optical component disposed in the receiving space. By setting a clearance groove in the frame and a movable baffle in the backlight module, with one end of the movable baffle rotatably connected to the frame, the movable baffle can rotate back and forth between a first position and a second position. During the assembly of the display device, by placing the movable baffle in the first position, it can limit the display panel, preventing displacement or breakage and ensuring proper assembly. After assembly, the movable baffle, in the second position, can be housed within the clearance groove of the frame, without affecting the size of the display device and preventing it from exceeding size specifications. This avoids increasing the bezel size, facilitating a narrow bezel design and solving the problems of display panel displacement and breakage during assembly in related technologies. Furthermore, the secondary molding of the frame and backplate to form a frame-backplate composite component reduces the frame size, further facilitating a narrow bezel design. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art 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, wherein:

[0042] Figure 1 This is a schematic diagram of the structure of a display device provided in an embodiment of this application;

[0043] Figure 2 yes Figure 1 A cross-sectional schematic diagram along the length direction of one embodiment of the provided display device in its first state;

[0044] Figure 3 yes Figure 2 A magnified view of a portion of region A;

[0045] Figure 4 yes Figure 1 A cross-sectional schematic diagram along the length direction of one embodiment of the provided display device in the second state;

[0046] Figure 5 yes Figure 4 A magnified view of a portion of region B;

[0047] Figure 6 yes Figure 4 A cross-sectional schematic diagram of the provided display device after conductive tape has been applied;

[0048] Figure 7 yes Figure 1 A cross-sectional schematic diagram of the provided display device after the bonding element is attached;

[0049] Figure 8 yes Figure 1 A cross-sectional schematic diagram of one embodiment of the provided display device in the width direction when it is in the first state;

[0050] Figure 9 yes Figure 1 A cross-sectional schematic diagram of one embodiment of the provided display device in the second state along the width direction;

[0051] Figure 10 yes Figure 9 A schematic diagram of the cross-section of the provided display device after the conductive tape has been applied.

[0052] Icon labels:

[0053] 300, Display device; 200, Display panel; 201, Array substrate; 202, Alignment substrate; 203, First polarizer; 204, Second polarizer; 205, Circuit board; 100, Backlight module; 1, Frame-backplate composite; 2, Frame; 21, First sidewall; 22, Second sidewall; 23, Third sidewall; 24, Fourth sidewall; 25, Clearance groove; 26, Guide groove; 27, Mounting groove; 3, Backplate; 31, Body; 32, Bending 4. Movable barrier; 41. Rotating part; 42. Limiting part; 43. First ratchet; 5. Connecting assembly; 51. Rotating shaft; 52. Movable assembly; 53. Fixed body; 531. Second ratchet; 54. Spring force transmission seat; 55. Spring; 56. Spring fixing shaft; 6. Optical assembly; 61. Reflector; 62. Light guide plate; 63. Composite film; 7. Light-shielding tape; 8. Reception space; 9. Light source; 10. Conductive tape; S1. Movable barrier setting area. Detailed Implementation

[0054] 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 a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0055] The terms "first," "second," and "third" used in the embodiments of this application are 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, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0056] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0057] See Figures 1 to 10 , Figure 1 This is a schematic diagram of the structure of a display device provided in an embodiment of this application. Figure 2 yes Figure 1 A cross-sectional schematic diagram along the length direction of one embodiment of the provided display device in its first state. Figure 3 yes Figure 2 A magnified view of a portion of region A. Figure 4 yes Figure 1 A cross-sectional schematic diagram along the length direction of one embodiment of the provided display device in its second state. Figure 5 yes Figure 4 A magnified view of a portion of region B. Figure 6 yes Figure 4 A cross-sectional diagram of the provided display device after the conductive tape has been applied. Figure 7 yes Figure 1 A cross-sectional schematic diagram of the provided display device after the bonding elements are attached. Figure 8 yes Figure 1A cross-sectional schematic diagram along the width direction of one embodiment of the provided display device in its first state. Figure 9 yes Figure 1 A cross-sectional schematic diagram along the width direction of one embodiment of the provided display device in its second state. Figure 10 yes Figure 9 A schematic diagram of the cross-section of the provided display device after the conductive tape has been applied.

[0058] See also Figures 1 to 10 One embodiment of this application provides a display device 300, which includes a display panel 200 and a backlight module 100. The display panel 200 is disposed on one side of the backlight module 100, and the backlight module 100 is used to provide a backlight source for the display panel 200.

[0059] Specifically, such as Figures 2 to 7 The display panel 200 includes an array substrate 201 and a counter substrate 202 disposed opposite to each other, a liquid crystal layer (not shown) disposed between the array substrate 201 and the counter substrate 202, and a sealant (not shown) connecting the array substrate 201 and the counter substrate 202. The counter substrate 202 is located on the side of the array substrate 201 away from the backlight module 100. The display panel 200 also includes a first polarizer 203 and a second polarizer 204. The first polarizer 203 is disposed on the side of the array substrate 201 away from the counter substrate 202, and the second polarizer 204 is disposed on the side of the counter substrate 202 away from the array substrate 201.

[0060] Furthermore, such as Figure 7 As shown, the array substrate 201 of the display panel 200 has a bonding area (not shown), and components such as a circuit board 205 are bonded to the bonding area for controlling the display panel 200 to realize the image display function.

[0061] like Figures 2 to 7 As shown, the backlight module 100 includes a frame-backplate composite 1, a movable baffle 4, and an optical component 6. The frame-backplate composite 1 includes a frame 2 and a backplate 3 connected to each other. The frame 2 and backplate 3 are formed by a secondary molding process. In some embodiments, the frame 2 surrounds the backplate 3 and forms a receiving space 8, within which the optical component 6 is disposed. The frame 2 is provided with a clearance groove 25. One end of the movable baffle 4 is rotatably connected to the frame 2, and the other end is a free end. The movable baffle 4 is configured to rotate back and forth between a first position and a second position. When the movable baffle 4 is in the first position, in the thickness direction of the display device 300, the free end of the movable baffle 4 protrudes from the end of the frame 2 away from the backplate 3, thereby limiting the position of the display panel 200 of the display device 300 during assembly. When the movable baffle 4 is in the second position, it is received within the clearance groove 25.

[0062] Specifically, the display panel 200 is disposed on the side of the frame 2 of the backlight module 100 away from the back plate 3. The display device 300 has a first state and a second state. When the display device 300 is in the first state, the movable barrier 4 of the backlight module 100 is in the first position, and the free end of the movable barrier 4 protrudes from the end of the frame 2 away from the back plate 3, thus limiting the display panel 200. That is, the first state of the display device 300 is the intermediate state during the assembly process of the display panel 200 and the backlight module 100. When the display device 300 is in the second state, the movable barrier 4 is in the second position and is housed in the clearance groove 25 of the frame 2. The second state of the display device 300 is the state after the display panel 200 and the backlight module 100 are assembled. Specifically, the material of the movable barrier 4 is the same as the material of the frame 2, which can be made of plastic material.

[0063] It is understandable that by setting a relief groove 25 in the frame 2 of the backlight module 100, setting a movable baffle 4 in the backlight module 100, and rotatably connecting one end of the movable baffle 4 to the frame 2, the movable baffle 4 can rotate back and forth between the first position and the second position. This facilitates the side of the display panel 200 by rotating the movable baffle 4 to the first position during the assembly of the display device 300. The movable baffle 4, which protrudes from the frame 2 away from the back plate 3, can limit the side of the display panel 200, which helps to prevent the display panel 200 from shifting or moving, and avoids the problem of the display panel 200 breaking, ensuring that the display panel 200 can be assembled in place. After the display device 300 is assembled, the display device 300 is in the second state, and the movable baffle 4 is in the second position. The movable baffle 4 can be accommodated in the relief groove 25 of the frame 2, and will not protrude from the edge of the frame 2 and affect the size of the display device 300, thus avoiding the problem of the display device 300's external dimensions exceeding the specifications. In this embodiment, the design of the movable barrier 4 and the clearance groove 25 in the backlight module 100 will not increase the bezel size of the display device 300, which is conducive to achieving a narrow bezel design and improving the display performance of the display device 300. At the same time, forming the frame 2 and the back plate 3 into a frame-back plate composite 1 through a secondary molding process is also conducive to reducing the size of the frame 2, which is more conducive to further achieving a narrow bezel design.

[0064] In some embodiments, when the display device 300 is in the first state, the movable baffle 4 is in the first position, with the free end of the movable baffle 4 protruding from the end of the frame 2 away from the back plate 3, and a first gap between the movable baffle 4 and the side of the display panel 200. This allows the movable baffle 4 to limit the position of the display panel 200, preventing the display panel 200 from shifting or displacing, which could lead to improper installation and affect the overall dimensions of the display device 300. Simultaneously, the first gap between the movable baffle 4 and the side of the display panel 200 avoids the impact of assembly tolerances on the display panel 200 during assembly, preventing breakage of the display panel 200 during assembly. This improves the assembly stability and efficiency of the display device 300, and enhances its display performance.

[0065] In some embodiments, when the display device 300 is in the first state, the first gap between the movable barrier 4 and the side of the display panel 200 is 0.1mm-0.2mm. In one specific embodiment, the first gap between the movable barrier 4 and the side of the display panel 200 is 0.15mm. It is understood that setting the first gap within the above range ensures that the movable barrier 4 limits the display panel 200 and prevents the display panel 200 from shifting or displacing, while also effectively preventing the display panel 200 from breaking. This is more conducive to improving the assembly efficiency of the display device 300 and avoids the problem of the movable barrier 4 pressing on the display panel 200 and causing it to break when the first gap is too large or too small.

[0066] Furthermore, such as Figure 6 and Figure 10 As shown, in some embodiments, the display device 300 further includes a conductive tape 10. After the display panel 200 and the backlight module 100 of the display device 300 are assembled, the display device 300 is in a second state, and the movable barrier 4 of the backlight module 100 is in a second position, that is, after the movable barrier 4 is received in the relief groove 25 of the frame 2, one end of the conductive tape 10 is attached to the surface of the substrate 202 away from the array substrate 201, and the other end extends from the outer side wall of the frame 2 to the surface of the back plate 3 away from the display panel 200, so as to attach both ends of the conductive tape 10 to the display panel 200 and the backlight module 100 respectively, so as to fix the display panel 200 and the backlight module 100 in assembly and improve the assembly stability of the display device 300.

[0067] In some embodiments, the optical component 6 includes a reflective sheet 61, a light guide plate 62, and a composite film 63 stacked sequentially. The backlight module 100 can be an edge-lit backlight module or a direct-lit backlight module. For example... Figure 7 As shown, in one embodiment, the backlight module 100 is a side-lit backlight module. The backlight module 100 includes a light source 9, which is disposed within the housing space 8 and located on one side of the light guide plate 62. It is used to provide backlight for the display panel 200 and also facilitates the ultra-thin design of the display device 300. Specifically, the light source 9 can be any light-emitting device such as an LED (light-emitting diode) or a fluorescent lamp.

[0068] like Figures 2 to 6 As shown, the backlight module 100 also includes a light-shielding tape 7. The light-shielding tape 7 is disposed on the side of the frame 2 away from the back plate 3 and extends to the side of the composite film 63 away from the light guide plate 62. That is, the two ends of the light-shielding tape 7 are respectively attached to the sides of the frame 2 and the composite film 63 away from the back plate 3, so as to block stray light between the gaps of the frame 2 and the composite film 63, prevent light leakage from the backlight module 100, and avoid light leakage in the edge area of ​​the display panel 200.

[0069] In some embodiments, the thickness of the backplate 3 is 0.15mm-0.25mm; in some embodiments, the thickness of the reflector 61 is 0.08mm-0.1mm; in some embodiments, the thickness of the light guide plate 62 is 0.5mm-0.6mm; in some embodiments, the thickness of the composite film 63 is 0.08mm-0.1mm; in some embodiments, the thickness of the array substrate 201 is 0.15mm-0.25mm; in some embodiments, the thickness of the array substrate 202 is 0.15mm-0.25mm; in some embodiments, the thickness of the first polarizer 203 is 0.081mm-0.091mm; in some embodiments, the thickness of the first polarizer 203 is 0.072mm-0.082mm. It is understood that by setting the thickness of the above-mentioned structural components of the display device 300 within the above-mentioned range, the thickness of each structural component is relatively small, which is conducive to the display device 300 achieving an ultra-thin design. Combined with the narrow bezel design of the display device 300 such as the frame back panel composite 1 and the movable baffle 4, the display device 300 of this application embodiment can simultaneously meet the characteristics of narrow bezel and ultra-thinness. Combining the characteristics of narrow bezel and ultra-thinness is more conducive to improving the performance of the display device 300, making the display device 300 of this application embodiment more advantageous.

[0070] In one specific embodiment, the thickness of the back plate 3 of the display device 300 is 0.2 mm, the thickness of the reflective sheet 61 is 0.09 mm, the thickness of the light guide plate 62 is 0.55 mm, the thickness of the composite film 63 is 0.09 mm, the thickness of the array substrate 201 is 0.2 mm, the thickness of the offset substrate 202 is 0.2 mm, the thickness of the first polarizer 203 is 0.086 mm, and the thickness of the second polarizer 204 is 0.077 mm. It can be understood that by specifically setting the thicknesses of the above-mentioned structural components of the display device 300 to the aforementioned values, it is more advantageous to reduce the thickness of the display device 300, enabling the design of an ultra-thin display device 300 of 1.6 mm. Combining narrow bezels and ultra-thin characteristics further improves the performance of the display device 300.

[0071] In some implementations, such as Figures 2 to 6 As shown, the clearance groove 25 is disposed on the outer side wall of the frame 2, that is, the clearance groove 25 is disposed on the side wall of the frame 2 away from the receiving space 8. One end of the movable barrier 4 is rotatably connected to the side wall of the clearance groove 25. The movable barrier 4 is configured to be able to rotate back and forth between a first position and a second position from the side of the clearance groove 25 away from the receiving space 8. That is, the movable barrier 4 rotates back and forth along the outer side of the frame 2 of the backlight module 100, avoiding the clearance groove 25 being disposed on the inner side wall of the frame 2. The reciprocating rotation of the movable barrier 4 from the receiving space 8 side would not affect structural components such as the light guide plate 62, and would also avoid the light guide plate 62 and other optical components 6 interfering with the reciprocating rotation of the movable barrier 4, thus preventing the movable barrier 4 from rotating to the first position and consequently preventing the movable barrier 4 from limiting the display panel 200. By setting the clearance groove 25 on the outer wall of the frame 2, one end of the movable barrier 4 can be rotatably connected to the side wall of the clearance groove 25, which allows the movable barrier 4 to rotate smoothly back and forth on the outer side of the frame 2, ensuring the limiting effect of the movable barrier 4 on the display panel 200.

[0072] In other embodiments, the clearance groove 25 can also be set in other positions, and one end of the movable baffle 4 can also be rotatably connected to other positions of the frame 2. As long as the movable baffle 4 can be smoothly rotated back and forth between the first position and the second position, so as to limit the display panel 200 during the assembly of the display device 300, and after the display device 300 is assembled, it can be accommodated in the clearance groove 25 without affecting the size of the outer contour of the display device 300, so as to facilitate the narrow bezel design, this application does not limit it in this regard, and it can be designed according to needs.

[0073] In some implementations, such as Figure 1As shown, the frame 2 is arranged around the back panel 3 along the circumference of the backlight module 100. Specifically, the frame 2 is roughly rectangular and includes a first sidewall 21 and a second sidewall 22 arranged opposite to each other along the length direction of the backlight module 100, and a third sidewall 23 and a fourth sidewall 24 arranged opposite to each other along the width direction of the backlight module 100.

[0074] like Figure 1 As shown, in some embodiments, the first sidewall 21 of the frame 2 is provided with a clearance groove 25, and a movable retaining wall 4 is rotatably connected to the sidewall of the clearance groove 25. In some embodiments, the second sidewall 22 of the frame 2 is provided with a clearance groove 25, and a movable retaining wall 4 is rotatably connected to the sidewall of the clearance groove 25. In some embodiments, the third sidewall 23 of the frame 2 is provided with a clearance groove 25, and a movable retaining wall 4 is rotatably connected to the sidewall of the clearance groove 25. In some embodiments, the fourth sidewall 24 of the frame 2 is provided with a clearance groove 25, and a movable retaining wall 4 is rotatably connected to the sidewall of the clearance groove 25.

[0075] Specifically, the clearance groove 25 can be disposed on any one or more of the first side wall 21, second side wall 22, third side wall 23, and fourth side wall 24 of the frame 2, and the movable barrier 4 can also be correspondingly connected to any one or more of the first side wall 21, second side wall 22, third side wall 23, and fourth side wall 24. By rotatably connecting the movable barrier 4 to the side wall of the clearance groove 25, the movable barrier 4 can rotate back and forth between the first position and the second position to limit the position of the display panel 200 during the assembly of the display device 300. It is understood that by providing clearance grooves 25 on the first sidewall 21 and / or the second sidewall 22 of the frame 2 and rotatably connecting the movable retaining wall 4, the length direction of the display panel 200 can be limited during the assembly of the display device 300, ensuring that the display panel 200 is assembled in the length direction; by providing clearance grooves 25 on the third sidewall 23 and / or the fourth sidewall 24 of the frame 2 and rotatably connecting the movable retaining wall 4, the width direction of the display panel 200 can be limited during the assembly of the display device 300, ensuring that the display panel 200 is assembled in the width direction.

[0076] When the first sidewall 21, second sidewall 22, third sidewall 23, and fourth sidewall 24 of the frame 2 are all provided with clearance grooves 25 and rotatably connected with movable baffles 4, after the display panel 200 is assembled with the backlight module 100 and the display panel 200 is in place, and the movable baffles 4 connected to the four sidewalls of the frame 2 are all in the first position, the movable baffle 4 connected to any one sidewall can be rotated to the second position and accommodated in the clearance groove 25. Then, conductive tape 10 is attached to the position corresponding to the sidewall, with one end of the conductive tape 10 attached to the surface of the substrate 202 away from the array substrate 201, and the other end extending from the outside of the sidewall to the surface of the backplate 3 away from the display panel 200. Next, rotate the movable baffle 4 connected to the next side wall to the second position and accommodate it in the corresponding clearance groove 25. Then, attach conductive tape 10 to the corresponding position until the movable baffle 4 connected to the first side wall 21, second side wall 22, third side wall 23, and fourth side wall 24 are all accommodated in the clearance groove 25 and conductive tape 10 is attached to the corresponding positions of the four side walls to complete the assembly of the display device 300. Alternatively, after the movable baffle 4 connected to the first side wall 21, second side wall 22, third side wall 23, and fourth side wall 24 are all accommodated in the clearance groove 25, attach conductive tape 10 to the corresponding positions of the four side walls to complete the assembly of the display device 300.

[0077] In some embodiments, the first sidewall 21 of the frame 2 is provided with a clearance groove 25. Specifically, along the width direction of the backlight module 100, the clearance groove 25 is provided in the central area of ​​the first sidewall 21, that is, the clearance groove 25 corresponds to the central area of ​​the first sidewall 21 in the width direction. It can be understood that by correspondingly setting the clearance groove 25 and the movable barrier 4 in the central area of ​​the first sidewall 21 in the width direction, the assembly of the display panel 200 in the length direction can be limited at the center position of the display panel 200 in the width direction. Compared with setting the clearance groove 25 off from the central area of ​​the first sidewall 21, it is more conducive to ensuring the assembly accuracy and uniformity of the display panel 200 in the length direction, and avoiding the display panel 200 from being offset or improperly installed in the length direction.

[0078] Furthermore, in some embodiments, along the width direction of the backlight module 100, a plurality of clearance grooves 25 are provided in the central area of ​​the first sidewall 21. The plurality of clearance grooves 25 are spaced apart from each other, and the sidewall of each clearance groove 25 can be rotatably connected to a movable baffle 4. That is, the central area of ​​the first sidewall 21 is the movable baffle setting area S1, and a plurality of clearance grooves 25 and movable baffles 4 are correspondingly provided in the movable baffle setting area S1. This can limit the assembly of the display panel 200 in the length direction at multiple different points in the central area of ​​the display panel 200 along the width direction, which is more conducive to improving the assembly accuracy of the display panel 200 of the display device 300 and more effectively preventing the display panel 200 from shifting or displacing.

[0079] In some embodiments, the second sidewall 22 of the frame 2 is provided with a clearance groove 25. Specifically, along the width direction of the backlight module 100, the clearance groove 25 is provided in the central region of the second sidewall 22, that is, the clearance groove 25 corresponds to the central region of the second sidewall 22 in the width direction. Similarly, by correspondingly setting the clearance groove 25 and the movable barrier 4 in the central region of the second sidewall 22 in the width direction, the same effect as setting the clearance groove 25 in the central region of the first sidewall 21 as described above can be achieved, and will not be repeated here.

[0080] Furthermore, in some embodiments, along the width direction of the backlight module 100, a plurality of clearance slots 25 are provided in the central region of the second sidewall 22. The plurality of clearance slots 25 are spaced apart from each other, and the sidewall of each clearance slot 25 can be rotatably connected to a movable baffle 4. That is, the central region of the second sidewall 22 is a movable baffle setting region S1, and a plurality of clearance slots 25 and movable baffles 4 are correspondingly provided in the movable baffle setting region S1. This can limit the assembly of the display panel 200 in the length direction at multiple different points in the central region of the display panel 200 along the width direction, which is more conducive to improving the assembly accuracy of the display panel 200 of the display device 300 and more effectively preventing the display panel 200 from shifting or displacing.

[0081] In some embodiments, multiple clearance grooves 25 can be provided simultaneously in the central regions of both the first sidewall 21 and the second sidewall 22 along the width direction to limit the display panel 200 on both sides of its length direction during the assembly of the display device 300, thereby improving the assembly accuracy in the length direction. In other embodiments, clearance grooves 25 can be provided only in the central region of the first sidewall 21, and there can be one clearance groove 25. At the same time, multiple clearance grooves 25 can be provided in the central region of the second sidewall 22. The sidewall of each clearance groove 25 can be rotatably connected to a movable baffle 4 to limit the length direction of the display panel 200 during the assembly of the display device 300. Alternatively, only one clearance groove 25 can be provided in the central regions of both the first sidewall 21 and the second sidewall 22 along the width direction. Alternatively, multiple clearance grooves 25 can be provided in the central region of the first sidewall 21 along the width direction, and one or more clearance grooves 25 can be provided at positions of the first sidewall 21 away from the central region along the width direction to limit the length direction of the display panel 200. The design can be customized as needed.

[0082] In some embodiments, the third sidewall 23 of the frame 2 is provided with a clearance groove 25. Specifically, along the length direction of the backlight module 100, the clearance groove 25 is provided in the central area of ​​the third sidewall 23, that is, the clearance groove 25 corresponds to the central area of ​​the third sidewall 23 in the length direction. It can be understood that by correspondingly setting the clearance groove 25 and the movable barrier 4 in the central area of ​​the third sidewall 23 in the length direction, the assembly of the display panel 200 in the width direction can be limited at the center position of the display panel 200 in the length direction. Compared with setting the clearance groove 25 off from the central area of ​​the third sidewall 23, it is more conducive to ensuring the assembly accuracy and uniformity of the display panel 200 in the width direction, avoiding the display panel 200 from being offset or not installed properly in the width direction, and avoiding the display panel 200 from cracking.

[0083] Furthermore, in some embodiments, along the length of the backlight module 100, a plurality of clearance slots 25 are provided in the central region of the third sidewall 23. The plurality of clearance slots 25 are spaced apart from each other, and the sidewall of each clearance slot 25 can be rotatably connected to a movable baffle 4. That is, the central region of the third sidewall 23 is the movable baffle setting region S1, and a plurality of clearance slots 25 and movable baffles 4 are correspondingly provided in the movable baffle setting region S1. This allows for limiting the assembly of the display panel 200 in the width direction at multiple different points in the central region of the display panel 200 along the length direction, which is more conducive to improving the assembly accuracy of the display panel 200 of the display device 300 and more effectively preventing the display panel 200 from shifting or displacing.

[0084] In some embodiments, the fourth sidewall 24 of the frame 2 is provided with a clearance groove 25. Specifically, the clearance groove 25 is provided at the end of the fourth sidewall 24 near the first sidewall 21 and / or the end near the second sidewall 22. That is, the clearance groove 25 is provided at the two end positions of the fourth sidewall 24 of the frame 2. It is understood that the fourth sidewall 24 of the frame 2 corresponds to the bonding area of ​​the display panel 200 where components such as the circuit board 205 are bonded. By setting the clearance groove 25 at the end of the fourth sidewall 24 near the first sidewall 21 and / or near the end of the second sidewall 22, the movable barrier 4 can avoid the bonding area of ​​the display panel 200, preventing the components bonded to the bonding area of ​​the display panel 200 from interfering with the reciprocating rotation of the movable barrier 4 between the first and second positions. This ensures the limiting effect of the movable barrier 4 connected to the fourth sidewall 24 on the width direction of the display panel 200, which is beneficial to ensuring the assembly accuracy and uniformity of the display panel 200 in the width direction, and preventing the display panel 200 from shifting or being improperly installed in the width direction. At the same time, it also prevents the reciprocating rotation of the movable barrier 4 from impacting or affecting the components bonded to the bonding area of ​​the display panel 200.

[0085] Furthermore, in some embodiments, along the length of the backlight module 100, the fourth sidewall 24 is provided with a plurality of clearance grooves 25 at the end near the first sidewall 21 and / or the end near the second sidewall 22. The plurality of clearance grooves 25 are spaced apart from each other, and the sidewall of each clearance groove 25 can be rotatably connected to a movable baffle 4. That is, the end of the fourth sidewall 24 near the first sidewall 21 and / or the end near the second sidewall 22 is the movable baffle setting area S1. The movable baffle setting area S1 is provided with a plurality of clearance grooves 25 and movable baffles 4, which can limit the assembly of the display panel 200 in the width direction at multiple different points along the length of the display panel 200, which is more conducive to improving the assembly accuracy of the display panel 200 of the display device 300 and more effectively preventing the display panel 200 from shifting or displacing.

[0086] In some embodiments, multiple clearance grooves 25 may be provided simultaneously in the central region of the third sidewall 23 along the length direction and at the end of the fourth sidewall 24 near the first sidewall 21 and / or near the end of the second sidewall 22, so as to limit the movement on both sides of the display panel 200 in the width direction during the assembly of the display device 300, thereby improving the assembly accuracy in the width direction. In other embodiments, a clearance groove 25 may be provided only in the central region of the third sidewall 23, and there may be one clearance groove 25. At the same time, multiple clearance grooves 25 may be provided at the ends of the fourth sidewall 24 near the first sidewall 21 and / or near the second sidewall 22. The sidewall of each clearance groove 25 may be rotatably connected to a movable baffle 4 to limit the width direction of the display panel 200 during the assembly of the display device 300. Alternatively, only one clearance groove 25 may be provided in the central region of the third sidewall 23 along the length direction and at the ends of the fourth sidewall 24 near the first sidewall 21 and / or near the second sidewall 22. Alternatively, multiple clearance grooves 25 may be provided at positions off the central region of the third sidewall 23 along the length direction, and multiple clearance grooves 25 may be provided at the ends of the fourth sidewall 24 near the first sidewall 21 and / or near the second sidewall 22 to limit the width direction of the display panel 200. The design can be customized as needed.

[0087] For details, see Figures 2 to 7 In some embodiments, the back panel 3 includes an interconnected body portion 31 and a bent portion 32, the bent portion 32 being bent toward the side of the body portion 31 closer to the frame 2. For example... Figure 2 and Figure 4 As shown, in some embodiments, the bent portion 32 of the back panel 3 is embedded within the frame 2, and the bent portion 32 of the back panel 3 is spaced apart from the outer side wall of the frame 2, with a clearance groove 25 disposed on the outer side wall of the frame 2. Specifically, in some embodiments, the bent portion 32 of the back panel 3 is embedded within the first side wall 21 and the second side wall 22 of the frame 2, which are arranged opposite each other along the length direction. That is, at positions corresponding to the first side wall 21 and the second side wall 22 of the frame 2, the first side wall 21 and the second side wall 22 of the frame 2 wrap around the bent portion 32 of the back panel 3.

[0088] like Figure 8 and Figure 9As shown, in some embodiments, the bent portion 32 of the back plate 3 may not be embedded in the frame 2. Specifically, the bent portion 32 of the back plate 3 may be fitted with the side wall of the frame 2. The side wall of the frame 2 is partially located at the top of the bent portion 32 of the back plate 3 and partially located on the side of the bent portion 32 of the back plate 3 near the receiving space 8. The clearance groove 25 may be provided in the bent portion 32 of the back plate 3 and extend to the side wall of the frame 2. Specifically, in some embodiments, the bent portion 32 of the back plate 3 is fitted with the third side wall 23 and the fourth side wall 24 of the frame 2, which are arranged opposite each other in the width direction. The third side wall 23 and the fourth side wall 24 are partially located on the side of the bent portion 32 of the back plate 3 near the receiving space 8 and partially located on the side of the bent portion 32 of the back plate 3 near the display panel 200, so as to support the display panel 200.

[0089] That is, in some embodiments, the border widths of the four sides of the display device 300 in the circumferential direction may be different, and the border widths of the first sidewall 21 and the second sidewall 22 that are arranged opposite each other in the length direction may be greater than the border widths of the third sidewall 23 and the fourth sidewall 24 that are arranged opposite each other in the width direction.

[0090] In other embodiments, the frame widths of the four sides of the display device 300 in the circumferential direction can be exactly the same. In the circumferential direction of the backlight module 100, the bent portions 32 of the back plate 3 can be correspondingly embedded in the first side wall 21, the second side wall 22, the third side wall 23, and the fourth side wall 24 of the frame 2. That is, in the circumferential direction of the backlight module 100, all four side walls of the frame 2 can include the bent portions 32 of the back plate 3, and the clearance groove 25 can be completely located on the outer side wall of the frame 2. Alternatively, in the circumferential direction of the backlight module 100, the bent portions 32 of the back plate 3 can be correspondingly located on the side of the first side wall 21, the second side wall 22, the third side wall 23, and the fourth side wall 24 of the frame 2 away from the receiving space 8, and the clearance groove 25 can be correspondingly provided on the bent portions 32 of the back plate 3 so that when the movable barrier 4 is in the second position, it can be received in the clearance groove 25 and will not protrude from the side of the backlight module 100.

[0091] The positional relationship between the bent portion 32 of the back plate 3 and the side wall of the frame 2 can be designed as needed, as long as it can ensure that the clearance groove 25 can be formed and the movable baffle 4 can be rotatably connected to the side wall of the clearance groove 25 so that the movable baffle 4 can rotate back and forth between the first position and the second position, so as to limit the display panel 200 during the assembly of the display device 300, and the movable baffle 4 can be accommodated in the clearance groove 25 after the assembly is completed.

[0092] See also Figures 2 to 5In some embodiments, the backlight module 100 further includes a connecting assembly 5, through which the movable barrier 4 is rotatably connected to the side wall of the clearance groove 25. Specifically, the connecting assembly 5 includes a rotating shaft 51 and a movable assembly 52, such as... Figure 3 As shown, the movable retaining wall 4 includes a rotating part 41 and a limiting part 42 connected to each other. The rotating part 41 is cylindrical and is sleeved on the outer side of the rotating shaft 51. The two opposite ends of the rotating shaft 51 along its extension direction are respectively embedded in the two opposite side walls of the clearance groove 25 so that the movable retaining wall 4 can rotate around the rotating shaft 51.

[0093] A movable component 52 is movably disposed within the bottom wall of the clearance groove 25, and the movable component 52 is positioned corresponding to the rotating part 41. Specifically, as shown... Figure 3 and Figure 5 As shown, the outer surface of the rotating part 41 is provided with a plurality of first ratchet teeth 43, which are arranged circumferentially along the rotating part 41. The movable component 52 is provided with a second ratchet tooth 531 near the surface of the rotating part 41, and the number of second ratchet teeth 531 is one. The movable retaining wall 4 is configured to rotate back and forth between a first position and a second position around the rotating axis 51. During the back and forth rotation between the first and second positions, the first ratchet tooth 43 contacts the second ratchet tooth 531 to compress and drive the movable component 52 to move back and forth within the bottom wall of the clearance groove 25. Specifically, the second ratchet tooth 531 engages (or engages) with the first ratchet tooth 43 when the movable retaining wall 4 is in the first position, thereby limiting the movable retaining wall 4 to the first position, and also engages (or engages) with the first ratchet tooth 43 when the movable retaining wall 4 is in the second position, thereby limiting the movable retaining wall 4 to the second position.

[0094] It is understandable that, since the movable component 52 can be movably disposed within the bottom wall of the clearance groove 25, during the assembly process of the display panel 200 of the display device 300 and the backlight module 100, an external force is applied to the limiting part 42 of the movable barrier 4, which drives the movable barrier 4 to rotate from the second position to the first position. That is, the external force drives the movable barrier 4 to rotate from within the clearance groove 25 to the end protruding from the frame 2 away from the back plate 3. During this process, the external force drives the rotating part 41 of the movable barrier 4 to rotate around the pivot 51, and the multiple first ratchet teeth 43 on the outer surface of the rotating part 41 also need to rotate accordingly. The first ratchet teeth 43 that engage with the second ratchet teeth 531 when the movable barrier 4 is in the second position are... 3 will apply a force to the second ratchet 531, which will drive the movable component 52 to move away from the rotating part 41 in the bottom wall of the clearance groove 25, thereby ensuring that the movable barrier 4 can rotate smoothly to the first position; when the movable barrier 4 rotates to the first position, the external force applied to the movable barrier 4 is removed. At this time, the movable component 52 will return to the initial position, and the second ratchet 531 of the movable component 52 will re-engage or engage with a new first ratchet 43 on the outer side of the rotating part 41 of the movable barrier 4. The force of the second ratchet 531 on the first ratchet 43 will limit the movable barrier 4 to the first position, so as to achieve the limitation of the display panel 200.

[0095] Furthermore, after the display panel 200 and the backlight module 100 are assembled, an external force is applied to the limiting part 42 of the movable barrier 4. This external force drives the movable barrier 4 to rotate from the first position to the second position. That is, the external force drives the movable barrier 4 to rotate from the end protruding from the frame 2 away from the back plate 3 into the clearance groove 25. During this process, the external force drives the rotating part 41 of the movable barrier 4 to rotate around the pivot 51. The multiple first ratchet teeth 43 on the outer surface of the rotating part 41 also need to rotate accordingly. When the movable barrier 4 is in the first position, the first ratchet teeth 43 that are in contact with and mesh with the second ratchet teeth 531 will apply a force to the second ratchet teeth 531. This force will drive the movable barrier 4 to rotate. The moving component 52 moves back to the side away from the rotating part 41 within the bottom wall of the clearance groove 25, thereby ensuring that the movable barrier 4 can smoothly rotate to the second position and be received in the clearance groove 25. After the movable barrier 4 rotates to the second position and enters the clearance groove 25, the external force applied to the movable barrier 4 is removed. At this time, the moving component 52 will return to the initial position, and the second ratchet 531 of the moving component 52 will re-engage or engage with the first ratchet 43 on the outer side of the rotating part 41 of the movable barrier 4. The force of the second ratchet 531 on the first ratchet 43 will limit the movable barrier 4 to the second position, so as to receive and limit the movable barrier 4 in the receiving groove.

[0096] Specifically, in some implementation methods, such as Figure 3 and Figure 5As shown, the bottom wall of the clearance groove 25 is provided with a guide groove 26 corresponding to the position of the rotating part 41. The bottom wall of the guide groove 26 is provided with a mounting groove 27. The movable component 52 includes a fixed body 53, a spring 55, a spring fixing shaft 56, and a spring 55 force transmission seat 54. The spring 55 and the spring fixing shaft 56 are disposed in the mounting groove 27, and the spring 55 is sleeved on the outer side of the spring fixing shaft 56. The fixed body 53 is disposed in the guide groove 26. The spring 55 force transmission seat 54 is disposed on the side of the spring 55 near the fixed body 53 and is in contact with the spring 55 and the fixed body 53 respectively. The surface of the fixed body 53 near the rotating part 41 is provided with a second ratchet 531.

[0097] During the reciprocating movement of the movable retaining wall 4 between the first and second positions driven by external force, the first ratchet 43 on the outer side of the rotating part 41 of the movable retaining wall 4 presses against the second ratchet 531 on the fixed body 53. The force exerted by the first ratchet 43 of the rotating part 41 on the second ratchet 531 drives the fixed body 53 to move closer to the spring 55. As a result, the fixed body 53 drives the spring 55 transmission seat 54 to compress the spring 55, causing the spring 55 to contract, which facilitates the smooth rotation of the movable retaining wall 4 to the first or second position. When the movable retaining wall 4 is rotated into position, the external force applied to the movable retaining wall 4 is removed. The elastic potential energy generated by the compression of the spring 55 will drive the spring 55 transmission seat 54 and the fixed body 53 to move back closer to the rotating part 41, so that the second ratchet 531 and the first ratchet 43 re-engage or engage, thereby limiting the movable retaining wall 4 to the second or first position. It is understood that by specifically setting the movable component 52 as the above-mentioned multiple structural components, the movable retaining wall 4 can move smoothly back and forth between the first position and the second position, and can limit the movable retaining wall 4 to the second position or the first position.

[0098] A spring fixing shaft 56 is installed within the mounting groove 27, and the spring 55 is sleeved on the outer side of the spring fixing shaft 56. This allows for a certain radial limitation on the compression or extension of the spring 55, preventing it from shifting or tilting during extension and retraction, which would affect the reciprocating movement of the movable component 52. Specifically, the length of the spring fixing shaft 56 should not exceed the maximum compression distance of the spring 55 during the reciprocating rotation of the movable retaining wall 4 between the second and first positions, to avoid affecting the extension and retraction distance of the spring 55, and thus to avoid affecting the rotation of the movable retaining wall 4.

[0099] In other embodiments, the movable component 52 may not include the above-mentioned multiple structural components. The specific structure of the movable component 52 can be designed as needed, as long as it can ensure that the movable retaining wall 4 rotates smoothly and can limit the movable retaining wall 4 at the first position and the second position. This application does not limit it in this regard.

[0100] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A backlight module, used in a display device, characterized in that, include: A composite frame and back panel, comprising a frame and a back panel connected to each other; the frame and the back panel are formed in a secondary process, the frame surrounds the back panel and forms a receiving space with the back panel; the frame is provided with a clearance groove. The movable retaining wall has one end rotatably connected to the rubber frame and the other end is a free end; the movable retaining wall is configured to rotate back and forth between a first position and a second position. When the movable barrier is in the first position, in the thickness direction, the free end of the movable barrier protrudes from the end of the frame away from the back plate to limit the display panel of the display device; when the movable barrier is in the second position, the movable barrier is received in the clearance groove. Optical components are disposed within the containment space.

2. The backlight module according to claim 1, characterized in that, The clearance groove is provided on the outer side wall of the rubber frame, and one end of the movable retaining wall is rotatably connected to the side wall of the clearance groove. The movable retaining wall is configured to rotate back and forth between the first position and the second position from the side of the clearance slot away from the receiving space.

3. The backlight module according to claim 2, characterized in that, The frame includes a first sidewall and a second sidewall that are disposed opposite to each other along the length direction of the backlight module, and a third sidewall and a fourth sidewall that are disposed opposite to each other along the width direction of the backlight module. The first sidewall and / or the second sidewall are provided with the clearance groove, and the sidewall of the clearance groove is rotatably connected to the movable retaining wall; and / or, The third sidewall and / or the fourth sidewall are provided with the clearance groove, and the sidewall of the clearance groove is rotatably connected to the movable retaining wall.

4. The backlight module according to claim 3, characterized in that, Along the width direction of the backlight module, a plurality of clearance slots are provided in the central region of the first sidewall; and / or, Along the width direction of the backlight module, a plurality of clearance slots are provided in the central region of the second sidewall; and / or, Along the length of the backlight module, a plurality of clearance slots are provided in the central region of the third sidewall; and / or, The fourth sidewall is provided with a plurality of clearance grooves at the end near the first sidewall and / or at the end near the second sidewall; The multiple clearance slots are spaced apart from each other, and the sidewall of each clearance slot can be rotatably connected to the movable retaining wall.

5. The backlight module according to claim 2, characterized in that, The backlight module also includes a connecting component, which includes a rotating shaft and a movable component. The two opposite ends of the rotating shaft are respectively embedded in the two opposite side walls of the clearance groove. The movable barrier includes a rotating part and a limiting part connected to each other. The rotating part is cylindrical and is sleeved on the outer side of the rotating shaft. The movable component is movably disposed within the bottom wall of the clearance groove and is positioned corresponding to the rotating part; the outer surface of the rotating part is provided with a plurality of first ratchet teeth, and the surface of the movable component near the rotating part is provided with second ratchet teeth; The movable retaining wall is configured to rotate back and forth between the first position and the second position about the pivot, and to drive the movable component to move back and forth within the bottom wall of the clearance groove by contacting the first ratchet and the second ratchet; the second ratchet is used to engage with the first ratchet when the movable retaining wall is in the first position or in the second position to limit the movable retaining wall.

6. The backlight module according to claim 5, characterized in that, The bottom wall of the clearance groove is provided with a guide groove corresponding to the position of the rotating part, and the bottom wall of the guide groove is provided with an installation groove. The movable component includes a fixed body, a spring, a spring fixing shaft, and a spring force transmission seat; the spring and the spring fixing shaft are disposed in the mounting groove, and the spring is sleeved on the outer side of the spring fixing shaft; the fixed body is disposed in the guide groove, and the spring force transmission seat is disposed on the side of the spring near the fixed body, and is in contact with the spring and the fixed body respectively; the surface of the fixed body near the rotating part is provided with the second ratchet.

7. The backlight module according to claim 1, characterized in that, The optical component includes a reflective sheet, a light guide plate, and a composite film stacked in sequence; the backlight module also includes a light-shielding tape, which is disposed on the side of the frame away from the back plate and extends to the side of the composite film away from the light guide plate. The thickness of the back plate is 0.15mm-0.25mm; and / or, The thickness of the reflective sheet is 0.08mm-0.1mm; and / or, The thickness of the light guide plate is 0.5mm-0.6mm; and / or, The thickness of the composite membrane is 0.08mm-0.1mm.

8. A display device, characterized in that, include: The display panel includes an array substrate and a counter substrate disposed opposite to each other, a first polarizer disposed on the side of the array substrate away from the counter substrate, and a second polarizer disposed on the side of the counter substrate away from the array substrate. The backlight module is the backlight module as described in any one of claims 1-7; The display panel is disposed on the side of the backlight module's frame away from the back panel, and the backlight module is used to provide a backlight for the display panel.

9. The display device according to claim 8, characterized in that, The display device has a first state and a second state; When the display device is in the first state, the movable barrier is in the first position, and there is a first gap between the movable barrier and the side of the display panel; the first gap is 0.1mm-0.2mm; when the display device is in the second state, the movable barrier is in the second position.

10. The display device according to claim 9, characterized in that, The display device further includes a conductive tape, which is configured such that, when the display device is in the second state, one end is attached to the surface of the substrate away from the array substrate, and the other end extends from the outer side wall of the frame to the surface of the back plate away from the display panel. And / or, the thickness of the array substrate is 0.15mm-0.25mm; And / or, the thickness of the substrate is 0.15mm-0.25mm; And / or, the thickness of the first polarizer is 0.081mm-0.091mm; And / or, the thickness of the second polarizer is 0.072mm-0.082mm.

Images