Display device and middle frame structure

Abstract

The invention provides a display device and a middle frame structure. Relates to the field of display equipment. The display device comprises a middle frame structure and a back plate, wherein the middle frame structure is arranged on the edge of the back plate; the display device further comprises a light source, a light diffusion structure and a reflecting part. A first supporting plate is arranged on the inner side of the middle frame structure; the light diffusion structure is connected with the first supporting plate; the first supporting plate comprises a first part and a second part, the second part extends in the direction away from the light diffusion structure, and the second part fixes the reflecting piece; and the first supporting plate is not connected with the back plate. The first supporting plate is not connected with the back plate, and the middle frame structure is decoupled from the back plate; in order to configure display devices with different light mixing distances, the back plate is not required to be replaced, the structure of the middle frame is required to be changed, the arrangement position of the first supporting plate is changed, and the light mixing distance is changed, so that the back plate is compatible with various different light mixing distances, and the supporting piece for fixing the light diffusion structure is simple in structure and small in occupied space.

Description

Technical Field

[0001] This application relates to the field of display device technology, and more particularly to a display device and a mid-frame structure that can be applied in a display device. Background Technology

[0002] In the field of liquid crystal display technology, the light mixing distance is a key parameter that determines display quality. For example... Figure 1 The diagram shows a partial structure of an existing display device, in which a light source 30 is fixed on the bearing surface M of a backplate 10, and the light mixing distance d is the distance between the bearing surface M and the optical diffuser plate 20.

[0003] The light mixing distance varies between different models on the market. For example, high-end products have a smaller light mixing distance, while low-end products have a larger one. When the overall structure is the same but the light mixing distance is different, a solution of re-molding the structural components can be used. However, for example, if the light mixing distance is large, the size of the re-molded structural components will be significantly larger, causing them to occupy a larger space in the display device. Summary of the Invention

[0004] This application provides a display device, and a mid-frame structure that can be applied in the display device. The main objective is to provide a combination structure of a backplate and a mid-frame, where the backplate is compatible with various light mixing distances, and the newly molded mid-frame structural components are smaller in size, do not occupy a large space, and have lower manufacturing costs.

[0005] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0006] In one aspect, this application provides a display device, which may be a television, a tablet computer, a laptop computer, an ultra-mobile personal computer (UMPC), etc.

[0007] The display device includes a mid-frame structure and a back plate. The mid-frame structure is located at the edge of the back plate, and the back plate is connected to the mid-frame structure. The display device also includes a light source, a light diffusion structure, and a reflector. The light source is located on the back plate, and the light diffusion structure is located on the light-emitting side of the light source. A first support plate is located on the inner side of the mid-frame structure. The back plate, the first support plate, and the light diffusion structure are arranged sequentially in a first direction, which is the thickness direction of the display device. The light diffusion structure is connected to the first support plate. The first support plate includes a first part and a second part. The second part extends away from the light diffusion structure and fixes the reflector. Furthermore, the first support plate is not connected to the back plate.

[0008] In the display device provided in this application, the mid-frame structure includes a first support plate, a light diffusion structure connected to the first support plate, and a light source fixed on the back plate. This can be understood as the light source and the light diffusion structure being mounted on different structural components. The light source is mounted on the back plate, and the light diffusion structure is mounted on the mid-frame structure. Furthermore, the first support plate is not connected to the back plate; that is, the mid-frame structure is decoupled from the back plate. Thus, when configuring display devices with different light mixing distances, the back plate does not need to be replaced. Instead, the mid-frame structure needs to be modified, the position of the first support plate changed, and the light mixing distance altered. Therefore, the back plate can be made compatible with various different light mixing distances.

[0009] In addition, this application uses a bent, simple first support plate as the carrier of the light diffusion structure and reflector. When the light mixing distance is large, the tilt angle of the second part can be changed, and the simple first support plate will not occupy a large space.

[0010] In one possible implementation, there is an accommodating space between the first support plate and the back plate, which is used to provide a light mixing distance for the display device.

[0011] The first support plate and the back plate of this application have an accommodating space. The accommodating space is used to provide the light mixing distance of the display device. In other words, in order to configure display devices with different light mixing distances, the back plate does not need to be replaced. Instead, the middle frame needs to be changed and the setting position of the first support plate needs to be changed, thereby changing the accommodating space and the light mixing distance. In this way, the back plate can be compatible with a variety of different light mixing distances.

[0012] In one possible implementation, the light diffusion structure is connected to the first part, and the distance between the light diffusion structure and the back plate is the light mixing distance of the display device.

[0013] In one feasible approach, the first support plate is a one-piece molded structural component. That is, the first part and the second part are molded as a single piece.

[0014] In one possible implementation, one end of the second part is connected to the first part, while the other end is suspended.

[0015] This can be understood as follows: the second part has a fixed end and a free-floating end. The fixed end is connected to the first part, while the free-floating end is suspended and not connected to other structural components. In some manufacturing processes, this can reduce the difficulty of manufacturing the middle frame. Furthermore, by changing the light mixing distance, the tilt angle of the second part can be altered without imposing additional requirements on the molds for the structural components, thus simplifying the manufacturing process and reducing manufacturing costs.

[0016] In one possible implementation, a second support plate is provided on the inner side of the middle frame structure, and the second support plate is located on the side of the back plate away from the first support plate; the back plate is connected to the second support plate.

[0017] In this implementation, a second support plate can be set up and used to fix the back plate.

[0018] In one possible implementation, the end of the second part furthest from the first part is not connected to the second support plate.

[0019] In this example, a second support plate is used to fix the back plate, and a first support plate is used to fix the light diffusion structure. In this example, the end of the second part of the first support plate that is away from the first part is not connected to the second support plate. That is, the first support plate and the second support plate are separate from each other and are not connected by the second part. In this way, when the light mixing distance changes, the tilt angle of the second part can be changed without imposing more requirements on the mold of the structural components. This simplifies the manufacturing process and reduces manufacturing costs.

[0020] In one possible implementation, the end of the first part away from the second part is connected to the inner side of the middle frame structure; the second support plate is connected to the inner side of the middle frame structure; and the back plate is disposed between the first support plate and the second support plate.

[0021] In this structure, both the first and second support plates are directly connected to the inner side of the middle frame structure, and the back plate is placed between the first and second support plates. This reduces the bezel size of the display device and optimizes its aesthetic appearance.

[0022] In one possible implementation, a third support plate is provided on the inner side of the middle frame structure; the third support plate is located between the first support plate and the second support plate, and a mounting cavity is formed between the second support plate and the third support plate; the edge portion of the back plate is located within the mounting cavity.

[0023] Placing the edge of the backplate between the second and third support plates provides a clamping effect, improving the installation stability of the backplate.

[0024] In one possible implementation, one end of the third support plate is connected to the inside of the middle frame structure, and the other end extends away from the second support plate.

[0025] In this way, the opening of the mounting cavity is funnel-shaped, which facilitates the assembly of the back panel.

[0026] In one possible implementation, the edge of the back panel includes a bent portion that bends at 180°.

[0027] By bending the edges of the back panel 180°, the strength of the back panel can be increased and its stability improved.

[0028] In one possible implementation, the backplate includes a first segment, a bent segment, and a second segment, the bent segment connecting the first and second segments, the second segment being further away from the light diffusion structure than the first segment; the first segment includes a bent portion, for example, the bent portion being bent at 180°.

[0029] The strength of the back panel can be further enhanced by incorporating bending sections and 180° bends on the back panel.

[0030] In one feasible approach, the back panel is a one-piece molded structural component. This can be understood as the first section, the bent section, and the second section being molded as a single piece.

[0031] In one possible implementation, the second support plate includes a third portion, a bent portion, and a fourth portion, the bent portion connecting the third and fourth portions, the fourth portion being further away from the light diffusion structure than the third portion; a first segment of the back plate is located between the third portion of the second support plate and the first portion of the first support plate; a second segment of the back plate is connected to the fourth portion of the second support plate.

[0032] In some examples, the third portion of the second support plate can be set parallel to the first portion of the first support plate.

[0033] In one feasible implementation, the second support plate is a one-piece molded structural component. This can be understood as the third, bent, and fourth parts being a single, integrally molded component.

[0034] In some examples, the first section of the back plate is positioned opposite the third part of the second support plate, the bent section of the back plate is positioned opposite the bent part of the second support plate, and the second section of the back plate is positioned opposite the fourth part of the second support plate.

[0035] In one possible implementation, the second segment of the backplate has at least one reinforcing rib, for example, it may include multiple reinforcing ribs spaced apart along the extension direction of the edge of the backplate.

[0036] The strength of the backplate can be further improved by adding reinforcing ribs to the second section of the backplate.

[0037] In one possible implementation, the second section of the backplate is fixedly connected to the fourth section of the second support plate by fasteners.

[0038] For example, by fixing the second and fourth sections together with bolts, the back panel and the middle frame are fixedly connected together, improving the reliability of the connection between the back panel and the middle frame.

[0039] In one possible implementation, a snap-fit ​​structure is provided on the second section of the back panel and the fourth part of the second support plate, the snap-fit ​​structure connecting the middle frame structure and the back panel.

[0040] When assembling the back panel and middle frame structure, a snap-fit ​​structure can be used to pre-position the back panel and middle frame structure, which facilitates the installation of thickness fixation.

[0041] In one possible implementation, the snap-fit ​​structure includes a slot and a buckle, one of which is disposed on the second section of the back plate and the other is disposed on the fourth section of the second support plate.

[0042] It uses snap-fit ​​and slot as the snap-fit ​​structure, which is simple and easy to manufacture.

[0043] In one possible implementation, a limiting structure is provided on the second section of the back plate and the fourth part of the second support plate. The limiting structure is used to prevent the back plate from moving relative to the middle frame structure in a second direction, which is parallel to the extension direction of the edge of the back plate.

[0044] A limiting structure is set at the joint between the back panel and the middle frame structure. When assembling the back panel and the middle frame structure, the limiting structure can be used to limit the position of the back panel and the middle frame structure, which facilitates subsequent installation and fixing.

[0045] In one possible implementation, a limiting post and a limiting groove are provided, the limiting groove being disposed on the fourth part of the second support plate, and the opening of the limiting groove extending through the edge of the fourth part, and the limiting post being disposed on the second section of the back plate.

[0046] In one possible implementation, the mid-frame structure includes a frame having an outer wall and an inner wall, the inner wall enclosing a space for accommodating a back panel; a first portion is connected to the inner wall of the frame; a second support plate is connected to the inner wall of the frame; and the back panel may be disposed between the first and second support plates.

[0047] The frame has a simple structure, and both the first and second support plates are directly connected to the inner wall of the frame. The back plate is placed between the first and second support plates. This reduces the frame size of the display device and optimizes its aesthetic appearance.

[0048] In one possible implementation, the middle frame structure includes a frame and an inner rib, the frame and the inner rib being arranged opposite to each other, the inner rib forming a space to accommodate a back plate away from the inner wall of the frame; there is a gap between the frame and the inner rib; a first part is connected to the inner wall of the inner rib; a second support plate is connected to the inner wall of the inner rib.

[0049] In one possible configuration, the backplate is located on the side of the second support plate away from the first support plate, with the edge portion of the backplate extending into the gap.

[0050] This can be understood as follows: the edge of the back panel is bent at 90°, and the bending can improve the mechanical strength of the back panel.

[0051] In one possible implementation, the frame, inner ribs, first support plate, second support plate, and third support plate are integrally molded parts. In another possible implementation, the reflector is an integral structural part, with one part of the reflector fixed to the back plate and the other part fixed to the first part.

[0052] In one possible implementation, the mid-frame further includes a fourth support plate disposed inside the mid-frame structure; the fourth support plate is located on the light-emitting side of the light diffusion structure; the display device further includes a display screen fixed to the fourth support plate.

[0053] In one possible implementation, the edge portion of the light diffusion structure is located between the first support plate and the fourth support plate.

[0054] Placing the edge of the light diffusion structure between the fourth support plate and the first support plate can clamp the light diffusion structure and improve its installation stability.

[0055] Secondly, this application provides a mid-frame structure that can be applied in a display device. The mid-frame structure may include: a frame and a first support plate; the first support plate is disposed on the inner side of the frame; the first support plate includes a first part and a second part, the first part is used to fix a light diffusion structure in the display device, the second part extends away from the light diffusion structure, the second part is used to fix a reflector in the display device, one end of the second part is connected to the first part, and the other end is suspended.

[0056] In the mid-frame structure provided in this application, a first support plate disposed on the inner side of the frame supports the light diffusion structure in the display device. The second part of the first support plate has a fixed end and a free-floating end; the fixed end is connected to the first part, and the free-floating end is suspended and not connected to other structural components. This reduces the fabrication difficulty of the mid-frame structure in some manufacturing processes. Furthermore, by changing the light mixing distance, the tilt angle of the second part can be changed without imposing more requirements on the mold making of the structural components, thereby simplifying the manufacturing process and reducing manufacturing costs.

[0057] In one possible implementation, the mid-frame structure further includes a second support plate disposed inside the frame; the second support plate is used to fix the back panel in the display device; the end of the second part away from the first part is not connected to the second support plate.

[0058] In this example, a second support plate is used to fix the back plate, and a first support plate is used to fix the light diffusion structure. In this example, the end of the second part of the first support plate that is away from the first part is not connected to the second support plate. That is, the first support plate and the second support plate are separate from each other and are not connected by the second part. In this way, when the light mixing distance changes, the tilt angle of the second part can be changed without imposing more requirements on the mold of the structural components. This simplifies the manufacturing process and reduces manufacturing costs.

[0059] In one possible implementation, the mid-frame structure further includes a third support plate disposed inside the frame; the third support plate is located between the first support plate and the second support plate, and a mounting cavity is formed between the second support plate and the third support plate for accommodating the edge portion of the back panel of the display device.

[0060] Placing the edge of the backplate between the second and third support plates provides a clamping effect, improving the installation stability of the backplate.

[0061] In one possible implementation, the bezel has an outer wall and an inner wall, the inner wall enclosing a space for accommodating a back panel of the display device; a first portion is connected to the inner wall of the bezel; and a second support plate is connected to the inner wall of the bezel.

[0062] The frame has a simple structure, and both the first and second support plates are directly connected to the inner wall of the frame. The back plate is placed between the first and second support plates. This reduces the frame size of the display device and optimizes its aesthetic appearance.

[0063] In one possible implementation, the second support plate includes a third part, a bent part, and a fourth part, the bent part connecting the third part and the fourth part, the fourth part being further away from the first support plate than the third part; the third part is connected to the inner wall of the frame.

[0064] In one possible implementation, the mid-frame structure further includes an inner rib; the frame and the inner rib are arranged opposite to each other, with the inner rib facing away from the inner wall of the frame to form a space for accommodating the back panel of the display device; there is a gap between the frame and the inner rib; a first part is connected to the inner wall of the inner rib; and a second support plate is connected to the inner wall of the inner rib. Attached Figure Description

[0065] Figure 1 This is a partial structural diagram of a display device in the prior art;

[0066] Figure 2 A structural diagram illustrating the mixing distance;

[0067] Figure 3 A front view of a display device;

[0068] Figure 4 An exploded view of a display device;

[0069] Figure 5 An assembly drawing of the mid-frame structure and back plate of the display device provided in the embodiments of this application;

[0070] Figure 6 An exploded view of the mid-frame structure and back plate of the display device provided in the embodiments of this application;

[0071] Figure 7 for Figure 5 Q1-Q1 cross-sectional view;

[0072] Figure 8 This is a partial cross-sectional structural diagram of the display device provided in the embodiments of this application;

[0073] Figure 9 This is a schematic diagram of the mid-frame structure of the display device provided in the embodiments of this application;

[0074] Figure 10 This is a partial cross-sectional structural diagram of the display device provided in the embodiments of this application;

[0075] Figure 11 This is a schematic diagram of the structure of the back panel of the display device provided in the embodiments of this application;

[0076] Figure 12 This is a schematic diagram of the structure of the back panel of the display device provided in the embodiments of this application;

[0077] Figure 13 for Figure 12 Enlarged view of point A;

[0078] Figure 14 for Figure 12 Enlarged view of point B;

[0079] Figure 15 This is a schematic diagram of the structure of the back panel of the display device provided in the embodiments of this application;

[0080] Figure 16 An assembly drawing of the mid-frame structure and back plate of the display device provided in the embodiments of this application;

[0081] Figure 17 An assembly drawing of the mid-frame structure and back plate of the display device provided in the embodiments of this application;

[0082] Figure 18 for Figure 17 Enlarged view of point C;

[0083] Figure 19 An assembly drawing of the mid-frame structure and back plate of the display device provided in the embodiments of this application;

[0084] Figure 20 for Figure 19 Enlarged view of point D;

[0085] Figure 21 This is a partial cross-sectional structural diagram of the display device provided in the embodiments of this application;

[0086] Figure 22 This is a partial cross-sectional structural diagram of the display device provided in the embodiments of this application. Detailed Implementation

[0087] Before introducing the embodiments involved in this application, let's first combine... Figure 2 The technical term "mixing distance" used in this application is explained.

[0088] like Figure 2 As shown, after the light emitted from the light source 30 is transmitted to the diffuser plate 20, the light is diffused by the diffuser plate 20, making the light emitted from the diffuser plate 20 more uniform and improving the visual effect. In some alternative embodiments, the distance d1 between the light source 30 and the diffuser plate 20 can be referred to as the light mixing distance. In other alternative embodiments, the light source 30 is disposed on the back plate 10. In some scenarios in the art, since the size of the light source 30 is small, it can be ignored. Therefore, the distance d2 between the back plate 10 and the diffuser plate 20 can also be referred to as the light mixing distance.

[0089] The following embodiments of this application will be described in conjunction with the accompanying drawings.

[0090] This application provides a display device, which can be a television, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), a tablet computer, a laptop computer, or an in-vehicle mobile electronic device, etc. This application does not impose any special limitations on the specific form of the above-mentioned display device.

[0091] Figure 3An exemplary structural diagram of a display device 100, which is a television, is provided. The television includes a mid-frame structure 101, and a display screen 102 is mounted on the mid-frame structure 101. The display screen 102 can be a liquid crystal display (LCD) panel or a self-emissive display screen. When the display screen 102 is a self-emissive display screen, it can be, for example, an organic light-emitting diode (OLED) display screen or a quantum dot light-emitting diode (QLED) display screen. When the display screen 102 is a liquid crystal display, the display device 100 can be referred to as a liquid crystal display device; when the display screen 102 is a self-emissive display, the display device 100 can be referred to as a self-emissive display device.

[0092] Regardless of whether the display screen 102 is a liquid crystal display screen or a self-emissive display screen, the display screen 102 includes a display area. The display area includes multiple sub-pixels, which may include, for example, red (R) sub-pixels, green (G) sub-pixels, and blue (B) sub-pixels.

[0093] Figure 4 This is an exploded view of a display device 100 according to an embodiment of this application. Besides the mid-frame structure 101 and the display screen 102, the display device 100 may also include a back plate 104 and a rear cover 103. The display screen 102 and the rear cover 103 are disposed on opposite sides of the mid-frame structure 101. The back plate 104 serves as the skeleton and carrier of the entire display device, and can mount most of the structural components and electronic devices of the display device, such as controllers, processors, field output integrated circuits, switching power supplies, speakers, picture tubes, and other functional devices.

[0094] In some display devices, both the light source and the light diffusion structure are located on the back panel 104. This can be understood as the back panel having depth in the direction of the arrangement of the light source and the light diffusion structure, and this depth determines the light mixing distance of the display device.

[0095] If you need to change the light mixing distance or the overall thickness of the device, you will need to replace the back panel. For example, if you need to reduce the light mixing distance, you will need to replace it with a back panel that is shallower than the one mentioned above; conversely, if you need to increase the light mixing distance, you will need to replace it with a back panel that is deeper than the one mentioned above.

[0096] Among feasible manufacturing processes, the backplate has a relatively high manufacturing cost. If the backplate mold needs to be replaced to change the light mixing distance and adapt to different overall thicknesses, this will significantly increase the manufacturing cost of the display device.

[0097] In order to make the backplane compatible with various light mixing distances and reduce manufacturing costs, this application provides some feasible structures, as detailed below.

[0098] like Figure 5 , Figure 6 and Figure 7 , Figure 5 This is an assembly drawing of the back plate 104 and the middle frame structure 101 provided in the embodiments of this application. Figure 6 yes Figure 5 Exploded view of the back panel 104 and the middle frame structure 101. Figure 7 It is along Figure 5 A portion of the cross-sectional view of Q1-Q1.

[0099] The display device exemplified in this application includes a mid-frame structure 101, such as... Figure 6 The middle frame structure 101 has a receiving cavity 101A, and the back plate 104 is disposed in the receiving cavity 101A. The back plate 104 is connected to the middle frame structure 101. It can be understood that the middle frame structure 101 is disposed at the edge of the back plate 104, and the middle frame structure 104 can be disposed around the periphery of the back plate 104.

[0100] like Figure 7 The display device also includes a light source 105, a light diffusion structure 106, and a display screen 102. The light source 105 is disposed on the back panel 104, the light diffusion structure 106 is located on the light-emitting side of the light source 105, and the display screen 102 is located on the light-emitting side of the light diffusion structure 106. The light diffusion structure 106 is used to receive the light emitted from the light source 105 and to diffuse the light emitted from the light source 105, so that the light is projected onto the display screen 102 more evenly, thereby improving the display effect.

[0101] For example, in Figure 7 In this arrangement, the light source 105, the light diffusion structure 106, and the display screen 102 are arranged along the Z-direction, which is as follows: Figure 4 The thickness direction of the display device.

[0102] The light diffusion structure 106 of this application is mounted on the mid-frame structure 101. For example, in Figure 7 In the example, the mid-frame structure 101 may include a first support plate 1012, which is located inside the mid-frame structure 101. A light diffusion structure 106 may be disposed on the first support plate 1012. The back plate 104, the first support plate 1012, and the light diffusion structure 106 may be arranged along a first direction (e.g., Figure 7The first direction can be the thickness direction of the display device.

[0103] exist Figure 7 In this context, the distance between the backplate 104 and the light diffusion structure 106 can be considered as the light mixing distance d1 of the display device.

[0104] This can be understood as follows: In this application example, the light source 105 is disposed on the back plate 104, and the light diffusion structure 106 is not disposed on the back plate 104, but is disposed on the middle frame structure 101, for example, on the first support plate 1012 of the middle frame structure 101.

[0105] See Figure 7 and Figure 8 , Figure 7 and Figure 8 The difference lies in the mixing distance, compared to Figure 7 and Figure 8 The mixing distance is changed from Figure 7 d1 increases to Figure 8 When d2 is used, only the middle frame structure 101 needs to be replaced, or it can be considered that another middle frame structure 101 needs to be redesigned. The back plate 104 does not need to be replaced, so that the back plate 104 can be used in display device products with different configurations. In this way, when designing products with different configurations, only the middle frame structure 101 needs to be changed, and the back plate 104 does not need to be changed to achieve compatibility of different light mixing distances. This can also shorten the development time of products with different configurations and correspondingly reduce manufacturing costs.

[0106] In some optional mid-frame structures, such as Figure 9 As shown, the mid-frame structure 101 may include a first mounting surface and a second mounting surface, which are arranged along the thickness direction of the display device, such as along... Figure 8 The arrangement is along the Z-direction. The first mounting surface is used to fix the back plate 104 containing the light source 105, and the second mounting surface is used to fix the light diffusion structure 106. The distance between the first and second mounting surfaces can be considered as the light mixing distance of the display device. When it is necessary to change the light mixing distance of the display device, the middle frame structure can be replaced, and the distance between the first and second mounting surfaces can be changed. For example, when it is necessary to reduce the light mixing distance, it can be done as follows: Figure 9 As shown in (A), S1 is reduced to Figure 9 As shown in (B) S2, without the need to replace as Figure 7 and Figure 8 The back panel 104. Thus, while achieving the ability to change the light mixing distance and adapt to different models, it can also reduce manufacturing costs.

[0107] In some display devices, when light emitted from the light source 105 is projected onto the light diffusion structure 106, the light in the central region of the light diffusion structure 106 is stronger than the light in the edge region, such as... Figure 7 As shown, the edge region Q of the light diffusion structure 106 may receive weaker light, which ultimately results in uneven lighting across the entire display screen 102, poor display effect at the edge of the display screen 102, and reduced user experience.

[0108] To alleviate the unevenness, such as Figure 7 and Figure 8 As shown, the display device may also include a reflector 107, which can be used to reflect light from the light source 105 to the edge area of ​​the light diffusion structure 106, thereby enhancing the light intensity in the edge area of ​​the display screen 102 and optimizing the display effect.

[0109] In some alternative configurations, the reflector 107 may include reflective paper, or it may be other reflective structures.

[0110] See Figure 7 and Figure 8 A portion of the reflector 107 is disposed on the back plate 104. For example, the first reflective portion 1071 of the reflector 107 is disposed on the surface of the back plate 104 for mounting the light source 105.

[0111] Multiple light sources 105 can be integrated on the back plate 104. These light sources 105 can be arranged in an array on the back plate 104. The area where multiple light sources 105 are arranged can be regarded as the light source integration area. The first reflective portion 1071 of the reflector 107 can be arranged along the periphery of the light source integration area.

[0112] The reflector 107 may further include a second reflective portion 1072 connected to the first reflective portion 1071. The second reflective portion 1072 extends toward the edge region of the light diffusion structure 106 to reflect more light emitted from the light source 105 to the edge region of the light diffusion structure 106, such as... Figure 7 and Figure 8 The dashed line with arrows shows how the second reflective portion 1072 reflects light to the edge region of the light diffusion structure 106.

[0113] In some structures, the second reflective portion 1072 can be arranged along the periphery of the light source integration area to form an enclosing cavity, thereby surrounding multiple light sources 105 within the enclosing cavity. In this way, the light emitted by the light source 105 is projected onto the second reflective portion 1072 of the reflector 107. The second reflective portion 1072 arranged along the periphery of the light source integration area can reflect more light onto the light diffusion structure 106.

[0114] In some examples, such as Figure 7 and Figure 8 The reflector 107 may further include a third reflective portion 1073, which is connected to the second reflective portion 1072 and can be fixed to the mid-frame structure 101. By fixing the first reflective portion 1071 to the back plate 104 and fixing the third reflective portion 1073 to the mid-frame structure 101, the installation reliability and stability of the reflector 107 can be improved.

[0115] To fix the reflector 107, such as Figure 7 and Figure 8 The first support plate 1012 may include a first part 1012A and a second part 1012B.

[0116] The first part 1012A is connected to the middle frame structure 101. In some examples, the first part 1012A can fix the light diffusion structure 106. For example, the light diffusion structure 106 can be fixedly connected to the first part 1012A using adhesive. The third reflective part 1073 of the reflector 107 can be fixed to the first part 1012A.

[0117] like Figure 7 and Figure 8 In the first support plate 1012, the second portion 1012B extends away from the light diffusion structure 106, which can be understood as the second portion 1012B extending towards the light source 105. The second portion 1012B fixes at least a portion of the second reflective portion 1072 of the reflector 107, for example, in Figure 7 and Figure 8 In the middle, part of the second reflective portion 1072 is fixed to the second portion 1012B.

[0118] In some display devices, such as Figure 7 and Figure 8 The second part 1012B of the second reflective part 1072 is tilted so that it can effectively receive light from the light source 105 and reflect more light to the edge area of ​​the light diffusion structure 106.

[0119] The tilt angle of Part 2 1012B is related to the light mixing distance of the display device, for example, in Figure 7 In the middle, when the mixing distance is d1, the tilt angle of the second part 1012B is X1. When the mixing distance increases to... Figure 8 As shown in d2, the tilt angle of the second part 1012B is X2, which is smaller than the tilt angle X1. Thus, the tilt angle becomes smaller when the light mixing distance of the display device increases.

[0120] In some technologies, a support platform can be set on the mid-frame structure. The support platform has two opposing support surfaces. One support surface is used to fix the light diffusion structure, and the other support surface is used to fix the back plate. The surface connecting the two support surfaces can be set as an inclined surface, which can be used to fix the reflector. If the light mixing distance of the display device is large, for example, when the light mixing distance is greater than or equal to 15mm, the tilt angle of the inclined surface connecting the two support surfaces is small. This will make the overall size of the support platform larger and occupy more space.

[0121] However, the example in this application Figure 7 and Figure 8 In this configuration, the first portion 1012A of the first support plate 1012 supports the light diffusion structure 106, while the second portion 1012B is tilted to support the reflector 107. Furthermore, the first support plate 1012 is not connected to the back plate 104. This can be understood as the back plate 104 being decoupled from the first support plate 1012, and the back plate 104 not being connected to the first support plate 1012.

[0122] The first support plate 1012 has a simple structure. When the light mixing distance changes, only the setting position of the first support plate 1012 and the tilt angle of the second part 1012B of the second support plate 1012 need to be adjusted to adapt to display devices of different thicknesses. In this way, the structure of the first support plate 1012 will not become complex or its volume will not increase due to changes in the light mixing distance, for example, an increase in the light mixing distance.

[0123] In addition, the first support plate 1012 is not connected to or decoupled from the back plate 104. In this way, the position and volume of the back plate 104 can be decoupled from the first support plate 1012, which makes the design of the first support plate 1012 more flexible. For example, the volume will not be large due to the constraint of the light mixing distance.

[0124] like Figure 7 and Figure 8 As shown, a receiving space 1011 is provided between the first support plate 1012 and the back plate 104. The receiving space 1011 is used to provide the light mixing distance of the display device. The receiving space 1011 may include a portion of the light mixing distance or the entire light mixing distance. That is, the entire light mixing distance falls into the receiving space 1011, or a portion of the light mixing distance falls into the receiving space 1011.

[0125] See Figure 7 and Figure 8 The light diffusion structure 106 is connected to the first part 1012A, and the distance between the light diffusion structure 106 and the back plate 104 is the light mixing distance of the display device.

[0126] like Figure 9As shown, in the example frame structure 101 of this application, one end of the second part 1012B of the first support plate 1012 is connected to the first part 1012A, and the other end is suspended. That is, the second part 1012B includes a connecting end and a free end. The connecting end is connected to the first part 1012A, and the free end is suspended and not connected to other structural components. For example, the free end of the second part 1012B is not connected to the structural component supporting the back plate 104.

[0127] The end of the second part 1012B of the first support plate 1012 provided in this application is suspended and not connected to other structural components. From the perspective of manufacturing process, this can simplify the manufacturing process of the first support plate 1012 and reduce manufacturing costs.

[0128] In some examples, the first part 1012A can be connected to the second part 1012B via a connecting structure, such as a glue connection. In other examples, the first part 1012A and the second part 1012B are an integral structure, that is, the first support plate 1012 is a one-piece molded structural component, for example, by injection molding.

[0129] like Figure 10 In this example, a first support plate 1012 is provided on the inner side of the mid-frame structure, and a second support plate 1013 can also be provided on the inner side of the mid-frame structure. The second support plate 1013 is located on the side of the back plate 104 away from the first support plate 1012; a portion of the back plate 104 is located between the second support plate 1013 and the first support plate 1012. In this example, the second support plate 1013 can be used to fix the back plate 104.

[0130] exist Figure 10 In the example, in the second part 1012B of the first support plate 1012, the free end of the second part 1012B is not connected to the second support plate 1013. That is, the second support plate 1013 used to fix the back plate 104 is decoupled from the first support plate 1012 used to fix the light diffusion structure 106, and the two support plates are two independent plate structures. In this way, the design freedom of the two plates can be increased, and they will not restrict or depend on each other.

[0131] See Figure 10 The inner side of the middle frame structure 101 is also provided with a third support plate 1014, which is located between the first support plate 1012 and the second support plate 1013. A mounting cavity 1015 is formed between the second support plate 1013 and the third support plate 1014. The edge portion of the back plate 104 is located in the mounting cavity 1015.

[0132] By using a second support plate 1013 and a third support plate 1014 that are arranged opposite to each other, the edge of the back plate 104 can be clamped in the mounting cavity 1015 between the two support plates, thereby improving the installation reliability and stability of the back plate 104.

[0133] In some examples, for easy mounting of the backplate 104, such as Figure 10 One end of the third support plate 1014 is connected to the inner side of the middle frame structure, and the other end extends away from the second support plate 1013. This allows the opening of the mounting cavity 1015 to be enlarged, facilitating the insertion of the back plate 104 and improving assembly efficiency.

[0134] Continue reading Figure 10 A fourth support plate 1016 can also be provided on the inner side of the middle frame structure. The fourth support plate 1016 is located on the side of the first support plate 1012 away from the third support plate 1014. The display screen 102 can be connected to the fourth support plate 1016.

[0135] In addition, the fourth support plate 1016 is disposed opposite to the first support plate 1012, and the edge portion of the light diffusion structure 106 can be clamped between the first support plate 1012 and the fourth support plate 1016, thereby improving the installation reliability and stability of the light diffusion structure 106.

[0136] like Figure 11 , Figure 11 This is a partial structure of a backplate 104 as exemplified in this application. The backplate 104 includes a first segment 1041, a bent segment 1043, and a second segment 1042. The bent segment 1043 connects the first segment 1041 and the second segment 1042. The second segment 1042 is further away from the light-diffusing structure 106 than the first segment 1041. That is, the bent segment 1043 bends in a direction away from the light-diffusing structure 106.

[0137] In some examples, the second segment 1042 can be used to carry some structural components or electronic devices in the display device, such as controllers, processors, field output circuits, switching power supply blocks, and speaker functional devices.

[0138] The strength of the backplate 104 can be increased by using the bending section 1043, thereby improving the reliability of the backplate.

[0139] To further increase the strength of the backplate, combined with Figure 10 and Figure 11 The edge portion of the back panel 104 includes a bent portion. For example, the first segment 1041 of the back panel includes a bent portion, which can be bent at 180°.

[0140] In some processes, the bending angle of the bent portion can be tolerant; for example, the bent portion can be bent at 170° to 180°.

[0141] Figure 12 This is a structural diagram of a backplate 104 provided in an embodiment of this application. Figure 13 yes Figure 12 Enlarged view of point A, Figure 14 yes Figure 12 Enlarged view of point B, Figure 15 yes Figure 13 The Q2-Q2 cross-section.

[0142] To improve the strength of the backplate 104, such as Figure 13 and Figure 14 At least one reinforcing rib 1044 can be provided on the back plate 104, or multiple reinforcing ribs 1044 can be provided. Multiple reinforcing ribs 1044 can be arranged at intervals on the back plate 104.

[0143] Example, Figure 13 In the middle, in the Y extension direction of the back plate 104, multiple reinforcing ribs 1044 are arranged at intervals along the Y extension direction.

[0144] Another example, Figure 14 In the back plate 104, multiple reinforcing ribs 1044 are arranged at intervals along the X-direction.

[0145] The reinforcing rib 1044 can be positioned in various ways on the backplate. For example, in... Figure 15 In this case, the reinforcing rib 1044 can be placed at the position near the bending section 1043 of the second section 1042 of the back plate to further improve the mechanical strength of the back plate 104.

[0146] In the example of this application, such as Figure 16 As shown, Figure 16 A diagram showing the connection relationship between the back panel 104 and the middle frame structure is provided. The second support plate 1013, located inside the middle frame structure, may include a third part 10131, a bent part 10133, and a fourth part 10132. The bent part 10133 connects the third part 10131 and the fourth part 10132. The fourth part 10132 is further away from the light diffusion structure than the third part 10131. That is, the bent part 10133 bends in a direction away from the light diffusion structure 106.

[0147] The positional relationship between the back plate and the second support plate can be as follows: Figure 16 The first segment 1041 can be set relative to the third part 10131, the bent segment 1043 can be set relative to the bent part 10133, and the second segment 1042 can be set relative to the fourth part 10132.

[0148] In some structures, the fourth part 10132 and the second segment 1042 can be fixedly connected by a connecting structure, so as to fix the back plate and the second support plate. For example, the fourth part 10132 and the second segment 1042 can be connected by a threaded connector.

[0149] To improve the connection strength between the back plate and the second support plate, such as Figure 16 The threaded connector 108 can pass through the fourth part 10132, the reinforcing rib 1044, and the second section 1042. Due to the thicker back plate at the location of the reinforcing rib, the connection strength between the back plate and the second support plate can be improved.

[0150] like Figure 16 In an example where the second support plate 1013 includes a third portion 10131, a bent portion 10133, and a fourth portion 10132, the first segment 1041 of the back plate may be located between the third portion 10131 and the third support plate 1014.

[0151] In the structure that the second support plate 1013 can realize, the fourth part 10132 can include multiple parts, such as... Figure 17 and Figure 18 As shown, Figure 18 yes Figure 17 Enlarged view at point C. This example includes multiple fourth parts 10132, which can be spaced apart along the extension direction of the outer edge of the middle frame structure. (See image below.) Figure 18 In the middle, multiple fourth parts 10132 are arranged at intervals along the Y direction.

[0152] To improve the assembly efficiency of the back panel and the middle frame structure, or to improve the connection strength of the back panel and the middle frame structure, embodiments of this application also provide some structures.

[0153] For example, a snap-fit ​​structure can be installed at the mating point between the back panel and the middle frame structure. When assembling the back panel and middle frame structure, the snap-fit ​​structure can be used for pre-assembly before proceeding with the assembly process described above. Figure 16 The example threaded connector 108 securely connects the back plate and the middle frame structure.

[0154] like Figure 19 and Figure 20 , Figure 20 yes Figure 19 Enlarged view at point D. The snap-fit ​​structure 110 in this example may include: a slot 1101 and a latch 1102, one of which is disposed on the back panel, and the other on the mid-frame structure. For example, in Figure 20 In this case, the card slot 1101 can be opened on the second support plate of the middle frame structure, such as on the fourth part 10132 of the second support plate, and the buckle 1102 can be set on the second section 1042 of the back plate.

[0155] In some assembly processes, it is possible to follow Figure 20 The P-direction pushes the middle frame structure 101. During the pushing process, the elastic deformation of the buckle 1102 allows the buckle 1102 to be locked in the slot 1101, thus achieving the pre-assembly of the back panel and the middle frame structure.

[0156] In some display devices, Figure 20 The snap-fit ​​structure 110 may include multiple sets, and the multiple sets of snap-fit ​​structures 110 may be arranged at intervals along the extension direction of the back plate edge, such as along... Figure 19 The X and Y directions are arranged alternately as shown.

[0157] In some implementations, the card slot 1101 can be set on the second section 1042 of the back plate, and the buckle 1102 can be set on the fourth part 10132 of the second support plate of the middle frame structure.

[0158] In this application example, a limiting structure can be set at the mating position of the back plate and the middle frame structure. The limiting structure can prevent the back plate from moving relative to the middle frame structure in some directions, thereby improving the connection reliability between the back plate and the middle frame structure.

[0159] like Figure 20 In this example, the limiting structure 109 is used to prevent the back panel from moving relative to the middle frame structure in a second direction, which is parallel to the extension direction of the edge of the back panel. For example, the limiting structure 109 is used to prevent the back panel from moving relative to the middle frame structure in the Y direction, or to prevent the back panel from moving relative to the middle frame structure in the X direction.

[0160] like Figure 20 The limiting structure 109 may include a limiting post 1091 and a limiting groove 1092. The limiting groove 1092 may be set on the middle frame structure, for example, on the fourth part 10132 of the second support plate, and the opening of the limiting groove 1092 extends through the edge of the fourth part 10132. The limiting post 1091 is set on the second section 1042 of the back plate.

[0161] Since the opening of the limiting groove 1092 extends through the edge of the fourth part 10132, it is possible to move along the edge of the back plate and the middle frame structure during assembly. Figure 20 The P-direction pusher of the middle frame structure 101 can insert the limiting post 1091 into the limiting groove 1092 to prevent the back plate from moving relative to the middle frame structure in the X or Y direction.

[0162] like Figure 20 The limiting structure 109 and the snap-fit ​​structure 110 of this application example can be spaced apart along the extension direction of the back plate edge.

[0163] The display device provided in this application has a mid-frame structure 101 that can be implemented in various ways, such as... Figure 21 , Figure 21 A schematic diagram of a mid-frame structure 101 is provided. In this example, the mid-frame structure 101 includes a side frame 101B, which may be a strip-shaped plate structure. The side frame 101B has opposing outer and inner walls, and the inner wall can enclose a space to accommodate a back panel 104. One end of a first support plate 1012 is connected to the inner wall of the side frame 101B, and one end of a second support plate 1013 is also connected to the inner wall of the side frame 101B.

[0164] This can be understood as follows: one end of the first support plate 1012 is directly connected to the inner wall of the frame 101B, and one end of the second support plate 1013 is directly connected to the inner wall of the frame 101B. In this way, the frame size of the display device can be reduced, and the aesthetic appearance of the display device can be optimized.

[0165] See Figure 21 The first support plate 1012, the second support plate 1013 and the frame 101B can be integrally molded structural parts, for example, they can be integrally molded by injection molding.

[0166] Figure 22 This is a partial structural diagram of another display device provided in an embodiment of this application. In this implementation structure, a first support plate 1012 is provided on the inner side of the middle frame structure 101. The light source 105 is provided on the back plate 104, and the light diffusion structure 106 is provided on the first support plate 1012.

[0167] For example, the first support plate 1012 includes a first part 1012A and a second part 1012B. The light diffusion structure 106 can be connected to the first part 1012A, and the second part 1012B can fix the reflector 107.

[0168] In this example, the first part 1012A of the first support plate 1012 supports the light diffusion structure 106, and the second part 1012B is tilted to support the reflector 107; and the first support plate 1012 is not connected to the back plate 104, thus decoupling it. In this way, the position and volume of the back plate 104 can be decoupled from the first support plate 1012, making the design of the first support plate 1012 more flexible. For example, the volume will not be large due to the constraint of the light mixing distance.

[0169] See you later Figure 22 A second support plate 1013 is also provided on the inner side of the middle frame structure 101, and the back plate 104 can be fixedly connected to the second support plate 1013. Furthermore, the end of the second part 1012B of the first support plate 1012 that is away from the first part 1012A is not connected to the second support plate 1013 and is in a suspended state.

[0170] In some structures, the second support plate 1013 can be fixedly connected to the back plate 104 by threaded connectors.

[0171] exist Figure 22 In the example, the middle frame structure 101 includes a side frame 101B and an inner rib 101C. The side frame 101B and the inner rib 101C are arranged opposite to each other. The inner rib 101C, facing away from the inner wall of the side frame 101B, forms a space to accommodate the back plate 104. One end of the first support plate 1012 is connected to the inner wall of the inner rib 101C, and one end of the second support plate 1013 is connected to the inner wall of the inner rib 101C.

[0172] There is a gap between the frame 101B and the inner rib 101C, and the edge portion of the back plate 104 can extend into this gap. For example, the edge portion of the back plate 104 can be bent at 90°, and the bent portion can be inserted into the gap.

[0173] See Figure 22 The first support plate 1012, the second support plate 1013, the frame 101B, and the inner rib 101C can be integrally molded structural components, for example, they can be integrally molded by injection molding.

[0174] In the different display devices described above, the positions of the light source and the light diffusion structure are decoupled. The light source is placed on the back panel, and the light diffusion structure is placed on the middle frame structure. This allows the back panel to be compatible with devices with different light mixing distances, reducing the manufacturing cost of the device.

[0175] The structure of the first support plate used to fix the light diffusion structure is relatively simple. When the light mixing distance changes the size of the middle frame structure, it will not make the size of the middle frame structure larger. The size of the first support plate will be larger, thus occupying more space inside the display device.

[0176] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0177] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A display device, characterized by comprising: The display device comprises: a middle frame structure and a back plate, the middle frame structure being arranged at the edge of the back plate; a light source and a light diffusion structure, the light source being arranged on the back plate, and the light diffusion structure being located on the light emitting side of the light source; a reflection member; an inner side of the middle frame structure is provided with a first support plate, the back plate, the first support plate and the light diffusion structure are sequentially arranged in a first direction, the first direction being the thickness direction of the display device, and the light diffusion structure is connected with the first support plate; the first support plate comprises a first part and a second part, the second part extends away from the light diffusion structure, and the second part fixes the reflection member; the first support plate is not connected with the back plate.

2. The display device according to claim 1, wherein a containing space is arranged between the first support plate and the back plate, and the containing space is used to provide the light mixing distance of the display device.

3. The display device according to claim 1 or 2, wherein the light diffusion structure is connected with the first part, and the distance between the light diffusion structure and the back plate is the light mixing distance of the display device.

4. The display device according to any one of claims 1 to 3, wherein one end of the second part is connected with the first part, and the other end is suspended.

5. The display device according to any one of claims 1-4, wherein an inner side of the middle frame structure is provided with a second support plate, the second support plate being located on the side of the back plate away from the first support plate; the back plate is connected with the second support plate.

6. The display device according to claim 5, wherein the end of the second part away from the first part is not connected with the second support plate.

7. The display device according to claim 5 or 6, wherein an inner side of the middle frame structure is provided with a third support plate; the third support plate is located between the first support plate and the second support plate, and a mounting cavity is formed between the second support plate and the third support plate; an edge part of the back plate is located in the mounting cavity.

8. The display device according to claim 7, wherein one end of the third support plate is connected with the inner side of the middle frame structure, and the other end extends away from the second support plate.

9. The display device according to any one of claims 5 to 8, wherein the edge of the back plate comprises a bending part, and the bending part is bent by 180°.

10. The display device according to claim 9, wherein the back plate comprises a first segment, a bending segment and a second segment, the bending segment connects the first segment and the second segment, and the second segment is farther away from the light diffusion structure than the first segment; the first segment comprises the bending part.

11. The display device according to claim 10, wherein the second support plate comprises a third segment, a bending segment and a fourth segment, the bending segment connects the third segment and the fourth segment, and the fourth segment is farther away from the light diffusion structure than the third segment; the first segment is located between the third segment and the first segment; the second segment is connected with the fourth segment.

12. The display device according to claim 10 or 11, characterized by the second segment of the back plate is provided with at least one reinforcing rib.

13. The display device of claim 12, wherein, the second segment of the back plate is provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are arranged at intervals along the extension direction of the edge of the back plate.

14. The display device of claim 11, wherein, the second segment of the back plate and the fourth segment of the second support plate are provided with clamping structures, and the clamping structures connect the middle frame structure and the back plate.

15. The display device of claim 14, wherein, The clamping structure comprises a clamping groove and a clamping buckle, one of which is arranged on the second section of the back plate, and the other is arranged on the fourth part of the second support plate.

16. The display device according to claim 11, 14 or 15, wherein The second section of the back plate and the fourth part of the second support plate are provided with a limiting structure for preventing the back plate from moving relative to the middle frame structure in a second direction, which is parallel to the extension direction of the edge of the back plate.

17. The display device of claim 16, wherein, The limiting structure comprises a limiting column and a limiting groove, the limiting groove is arranged on the fourth part of the second support plate, and the opening of the limiting groove penetrates through the edge of the fourth part, and the limiting column is arranged on the second section of the back plate.

18. The display device according to any one of claims 5-17, wherein The middle frame structure comprises a frame, the frame has an outer wall and an inner wall, and the inner wall encloses a space for accommodating the back plate; The first part is connected with the inner wall of the frame; The second support plate is connected with the inner wall of the frame.

19. The display device according to any one of claims 5-17, wherein The middle frame structure comprises a frame and an inner rib, the frame and the inner rib are arranged opposite to each other, and the inner rib encloses a space for accommodating the back plate away from the inner wall of the frame; There is a gap between the frame and the inner rib; The first part is connected with the inner wall of the inner rib; The second support plate is connected with the inner wall of the inner rib.

20. The display device according to claim 19, wherein The back plate is located on the side of the second support plate away from the first support plate, and the edge part of the back plate extends into the gap.

21. The display device of any one of claims 1-20, wherein, The reflector is an integral structure, one part of the reflector is fixed on the back plate, and the other part is fixed on the second part. 22.A middle frame structure used in a display device, characterized in that, The middle frame structure comprises: a frame; a first support plate arranged on the inner side of the frame; The first support plate comprises a first part and a second part, the first part is used for fixing a light diffusion structure in the display device, the second part extends away from the light diffusion structure, the second part is used for fixing a reflector in the display device, one end of the second part is connected with the first part, and the other end is suspended.

23. The middle frame structure of claim 22, wherein, The middle frame structure further comprises a second support plate arranged on the inner side of the frame; The second support plate is used for fixing a back plate in the display device; The end of the second part away from the first part is not connected with the second support plate.

24. The middle frame structure of claim 23, wherein, The middle frame structure further comprises a third support plate arranged on the inner side of the frame; The third support plate is located between the first support plate and the second support plate, and a mounting cavity is formed between the second support plate and the third support plate, the mounting cavity is used for accommodating an edge part of the back plate of the display device.

25. The middle frame structure of claim 23 or 24, wherein, The frame has an outer wall and an inner wall, and the inner wall encloses a space for accommodating the back plate of the display device; The first part is connected with the inner wall of the frame; The second support plate is connected with the inner wall of the frame.

26. The middle frame structure of claim 25, wherein the second support plate comprises a third portion, a bent portion, and a fourth portion, the bent portion connecting the third portion and the fourth portion, the fourth portion being farther away from the first support plate than the third portion. The third portion is connected with an inner wall of the bezel. The middle frame structure further comprises an inner rib.

27. The middle frame structure of claim 23 or 24, wherein, The bezel and the inner rib are oppositely arranged, and the inner rib surrounds a space for accommodating a back plate of the display device away from the inner wall of the bezel. There is a gap between the bezel and the inner rib. The first portion is connected with an inner wall of the inner rib. The second support plate is connected with an inner wall of the inner rib. ​

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