Display device and frame assembly

Abstract

The utility model discloses a display device and a frame assembly, the display device comprises a back plate and a middle frame, the middle frame is located on the front face of the back plate, and the middle frame comprises a first plate body, a second plate body, a third plate body and a fourth plate body which are sequentially connected end to end; one end of the first plate body and one end of the third plate body are respectively provided with a first matching groove, and the two ends of the second plate body are respectively matched with the two first matching grooves, so that the two ends of the second plate body are respectively positioned and spliced with the first plate body and the third plate body; second matching grooves are formed in the other end of the first plate body and the other end of the third plate body respectively, and the two ends of the fourth plate body are matched with the two second matching grooves respectively, so that the two ends of the fourth plate body are located and spliced with the first plate body and the third plate body respectively. According to the technical scheme, the production process can be simplified, and the production cost can be reduced.

Description

Technical Field

[0001] The present application relates to the field of display devices, and in particular to a display device and a frame assembly. Background Art

[0002] The backlight module in the display device mainly includes an optical film, a back panel and a frame assembly, etc. The back panel is provided with a hanging ear, and the hanging ear cooperates with the limiting hole on the optical film to position the optical film. At the same time, the frame assembly is connected to the back panel, and together with the back panel, it presses and fixes the optical film.

[0003] However, the existing frame assembly is composed of four plates, each of which is positioned and connected to the back plate. In other words, the back plate needs to have multiple hole structures and multiple limit structures, which makes the back plate structure quite complicated, which not only increases the difficulty of processing, but also increases the possibility of defective rate of the back plate and increases the manufacturing cost of the back plate. In addition, too many hole structures on the back plate can easily damage the overall structural strength of the back plate and affect its service life. Utility Model Content

[0004] The purpose of this application is to provide a display device and a frame assembly that can simplify the production process and reduce production costs.

[0005] To achieve the above-mentioned purpose, the present application provides a display device on one hand, wherein the display device at least includes a back panel and a middle frame, wherein the middle frame is located on the front side of the back panel, and the middle frame includes a first plate body, a second plate body, a third plate body and a fourth plate body which are sequentially connected end to end; one end of the first plate body and one end of the third plate body are respectively provided with a first matching groove, and the two ends of the second plate body are respectively matched with the two first matching grooves, so that the two ends of the second plate body are respectively positioned and spliced ​​with the first plate body and the third plate body; the other end of the first plate body and the other end of the third plate body are respectively provided with a second matching groove, and the two ends of the fourth plate body are respectively matched with the two second matching grooves, so that the two ends of the fourth plate body are respectively positioned and spliced ​​with the first plate body and the third plate body.

[0006] To achieve the above-mentioned purpose, the present application further provides a frame assembly on the other hand, which is applied to a display device, and the frame assembly includes a middle frame, wherein the middle frame includes a first plate body, a second plate body, a third plate body and a fourth plate body which are connected end to end in sequence; one end of the first plate body and one end of the third plate body are respectively provided with a first matching groove, and the two ends of the second plate body are respectively matched with the two first matching grooves, so that the two ends of the second plate body are respectively positioned and spliced ​​with the first plate body and the third plate body; the other end of the first plate body and the other end of the third plate body are respectively provided with a second matching groove, and the two ends of the fourth plate body are respectively matched with the two second matching grooves, so that the two ends of the fourth plate body are respectively positioned and spliced ​​with the first plate body and the third plate body.

[0007] It can be seen that in the technical solution provided by the present application, a first matching groove is provided at one end of the first plate body and one end of the third plate body, respectively, a second matching groove is provided at the other end of the first plate body and the other end of the third plate body, respectively, and the second plate body and the fourth plate body can be positioned by relying on the first matching groove and the second matching groove on the first plate body and the third plate body. In this way, only a limiting mechanism for positioning the first plate body and the third plate body needs to be provided on the back plate, and there is no need to provide a limiting structure for positioning the second plate body and the fourth plate body on the back plate, thereby simplifying the structure of the back plate, reducing the difficulty of processing the back plate, and further reducing the processing cost of the back plate. At the same time, it is possible to avoid excessive damage to the overall structural strength of the back plate by the limiting structure provided on the back plate, thereby improving the service life of the back plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0009] Figure 1 It is a partial structural schematic diagram of a display device in an embodiment provided by the present application;

[0010] Figure 2 yes Figure 1 AA section plan view;

[0011] Figure 3 yes Figure 1 AA section axonometric drawing;

[0012] Figure 4 yes Figure 1 BB section axonometric drawing;

[0013] Figure 5 yes Figure 1CC section plan view;

[0014] Figure 6 is a schematic axonometric diagram of another part of the structure of a display device in an embodiment provided by the present application;

[0015] Figure 7 yes Figure 6 Magnified view of the D part;

[0016] Figure 8 is an axonometric schematic diagram of a first plate body in an embodiment provided by the present application;

[0017] Fig. 9 is an axonometric schematic diagram of a second plate body in an embodiment provided by the present application;

[0018] Fig.10 yes Figure 1 EE cutaway plan view.

[0019] Description of reference numerals:

[0020] 100, back panel; 110, first flange sprouting hole; 120, positioning pin; 200, optical film; 210, lug; 211, limiting hole; 300, frame assembly; 310, middle frame; 311, hanging ear; 312, first plate body; 3121, first matching groove; 3122, second matching groove; 3123, positioning hole; 313, second plate body; 314, third plate body; 315, fourth plate body; 316, first connecting hole; 3161, countersunk groove; 317, threaded hole; 318, second connecting hole; 320, front frame; 321, vertical panel part; 3211, giving way hole; 322, horizontal panel part; 330, shielding member; 340, fixing member. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Terms such as "upper", "above", "lower", "below", "first end", "second end", "one end", "the other end" used in the present application to represent spatial relative positions are used to describe the relationship between a unit or feature as shown in the accompanying drawings relative to another unit or feature for the purpose of convenience of explanation. Terms of spatial relative position may be intended to include different orientations of the device in use or work other than the orientation shown in the figure. For example, if the device in the figure is turned over, the unit described as being "below" or "below" other units or features will be located "above" other units or features. Therefore, the exemplary term "below" can encompass both the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or other orientations), and the spatially related descriptors used herein are interpreted accordingly.

[0022] In addition, the terms "installed", "set", "provided with", "connected", "slidingly connected", "fixed", and "sleeved" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] The backlight module in the display device mainly includes an optical film, a back panel and a frame assembly, etc. The back panel is provided with a hanging ear, and the hanging ear cooperates with the limiting hole on the optical film to position the optical film. At the same time, the frame assembly is connected to the back panel, and together with the back panel, it presses and fixes the optical film.

[0024] Obviously, in order to cover the hanging ears and press and fix the optical film, the frame assembly in the existing display device needs to have sufficient width, which increases the black borders around the display device, thereby reducing the screen-to-body ratio and affecting the overall aesthetics of the display device.

[0025] In addition, the existing frame assembly is usually formed by splicing four frames end to end in sequence. In order to position the frame and the back panel, positioning pins and threaded holes are set at the corresponding positions of the four frames on the back panel. In other words, multiple hole structures and multiple limit structures need to be set on the back panel, which makes the back panel structure quite complicated, which not only increases the difficulty of processing, but also increases the possibility of defective rate of the back panel and increases the manufacturing cost of the back panel. In addition, too many hole structures on the back panel can easily damage the overall structural strength of the back panel and affect its service life.

[0026] Therefore, how to improve the structure of the display device, thereby increasing the screen-to-body ratio of the display device and improving the overall aesthetics of the display device, has become a topic that needs to be urgently addressed in this field.

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the embodiments described in this application are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0028] Please also see Figure 1 and Figure 6The present application provides a display device, which may include at least a back plate 100, an optical film 200 and a frame assembly 300. The back plate 100 is used as the back support structure of the display device, which is usually used to provide stable support and protect the internal circuits and components, as well as to dissipate heat and help dissipate the heat generated by the display device. The optical film 200 is located on the front of the back plate 100, and its main function is to improve the display effect and image quality. The optical film 200 can have different functions, such as increasing contrast, reducing reflection, improving viewing angle, etc. Common optical films 200 include anti-reflection films, anti-glare films, polarizing films, etc. The frame assembly 300 is connected to the back plate 100 and is arranged around the optical film 200. The frame assembly 300 is used as the outer frame of the display device, which is usually made of metal or plastic materials. Its main function is to fix and protect the display screen and other internal components, and it also plays a role in aesthetics.

[0029] It should be noted that the "front" of each component defined in this application refers to the side of each component facing the user when the display device is in use, and vice versa, it is defined as the "back". Among them, a display device refers to an electronic device used to display content such as images, text or videos. It can convert electronic signals into visible images or videos and display them to users through a screen or other display media. Display devices may include but are not limited to monitors, smart screens, TVs, and tablets.

[0030] Please refer to Figures 6 to 9 In an achievable implementation, the frame assembly 300 may include at least a middle frame 310. The middle frame 310 is located on the front of the back plate 100, and the middle frame 310 includes a first plate 312, a second plate 313, a third plate 314, and a fourth plate 315 connected end to end in sequence. In practical applications, the first plate 312, the second plate 313, the third plate 314, and the fourth plate 315 may be surrounded to form a rectangular ring structure. Of course, they may also be surrounded to form any ring structure according to the specific shape requirements of the product, and this application does not specifically limit this.

[0031] In this embodiment, one end of the first plate 312 and one end of the third plate 314 are respectively provided with a first matching groove 3121, and both ends of the second plate 313 are respectively matched with the two first matching grooves 3121, so that both ends of the second plate 313 are respectively positioned and spliced ​​with the first plate 312 and the third plate 314. The other end of the first plate 312 and the other end of the third plate 314 are respectively provided with a second matching groove 3122, and both ends of the fourth plate 315 are respectively matched with the two second matching grooves 3122, so that both ends of the fourth plate 315 are respectively positioned and spliced ​​with the first plate 312 and the third plate 314.

[0032] In this way, the back plate 100 only needs to be provided with a limiting mechanism for positioning the first plate 312 and the third plate 314, and the second plate 313 and the fourth plate 315 can be positioned by relying on the first plate 312 and the third plate 314, and there is no need to provide a limiting structure for positioning the second plate 313 and the fourth plate 315 on the back plate 100, thereby simplifying the production process, reducing the processing difficulty of the back plate 100, and further reducing the processing cost of the back plate 100. At the same time, it is prevented that the limiting structure provided on the back plate 100 excessively damages the overall structural strength of the back plate 100, simplifies the structure of the back plate 100, and improves the service life of the back plate 100.

[0033] In order to facilitate the positioning of the second plate 313 and the fourth plate 315, in one implementation, the first matching groove 3121 located at one end of the first plate 312 is opened on the top surface of the first plate 312, and the first matching groove 3121 located at one end of the first plate 312 extends to the end surface and inner side surface of one end of the first plate 312. The second matching groove 3122 located at the other end of the first plate 312 is opened on the top surface of the first plate 312, and the second matching groove 3122 located at the other end of the first plate 312 extends to the end surface and inner side surface of the other end of the first plate 312. The first matching groove 3121 located at one end of the third plate 314 is opened on the top surface of the third plate 314, and the first matching groove 3121 located at one end of the third plate 314 extends to the end surface and inner side surface of one end of the third plate 314; the second matching groove 3122 located at the other end of the third plate 314 is opened on the top surface of the third plate 314, and the second matching groove 3122 located at the other end of the third plate 314 extends to the end surface and inner side surface of the other end of the third plate 314. In this way, the second plate 313 and the fourth plate 315 can be positioned and installed on the back plate 100 from a direction perpendicular to the back plate 100 without inserting from the side, and there is no need to avoid other parts during disassembly and assembly, which is convenient for installation operation and disassembly and replacement during subsequent maintenance. Among them, the inner side surface of the first plate 312 defined in this application refers to the surface of the first plate 312 close to the side of the optical film 200.

[0034] The above only introduces one feasible implementation of the first mating groove 3121 and the second mating groove 3122 on the first plate body 311 and the third plate body 314. Of course, other settings may also be adopted. For example, the first mating groove 3121 and the second mating groove 3122 on the first plate body 311 may be opened on the top surface of the first plate body 311 and extend to the end surface and the inner surface of the first plate body 311 respectively, while the first mating groove 3121 and the second mating groove 3122 on the third plate body 314 may be opened only on the end surface of the first plate body 311, etc.

[0035] In actual applications, before the second plate body 313 and the fourth plate body 315 rely on the first plate body 312 and the third plate body 314 for positioning, the second plate body 313 and the fourth plate body 315 can be pre-positioned by matching the countersunk grooves on them with the outer walls of the flanges of the first flanged bud holes on the back plate 100, so as to further facilitate the positioning and connection of the second plate body 313 and the fourth plate body 315.

[0036] For the positioning method of the first plate 312 and the third plate 314, please refer to Figure 8 and Fig.10 In an achievable embodiment, positioning holes 3123 are respectively provided at both ends of the first plate 312 and the third plate 314. Positioning pins 120 matching the positioning holes 3123 are connected to the back plate 100, so that the first plate 312 and the third plate 314 are positioned by the matching of the positioning holes 3123 and the positioning pins 120.

[0037] In practical applications, the positioning pin 120 can be connected to the back plate 100 by riveting, or by threading, etc., and this application does not make any specific limitations on this.

[0038] like Figure 2 and Figure 3 As shown, in an achievable implementation, the frame assembly 300 may further include a front frame 320. The middle frame 310 is arranged around the optical film 200, and a hanging ear 311 is arranged on the front of the middle frame 310, and the hanging ear 311 cooperates with the limiting hole 211 on the lug 210 of the optical film 200, so that the lug 210 is sleeved on the hanging ear 311 through the limiting hole 211, so that the hanging ear 311 ensures that the optical film 200 remains stable in the installation position without vibration or displacement, thereby ensuring the stability and reliability of the display device.

[0039] In actual applications, the ear 311 should be located on the top surfaces of at least two of the first plate body 312, the second plate body 313, the third plate body 314 and the fourth plate body 315. For example, the top surfaces of the first plate body 312, the second plate body 313, the third plate body 314 and the fourth plate body 315 can be respectively provided with the ear 311, or the top surfaces of the first plate body 312 and the third plate body 314 can be respectively provided with the ear 311, etc.

[0040] At the same time, it should be noted that the present application sets the hanging ear 311 on the front of the middle frame 310, which is equivalent to integrating the hanging ear 311 with the frame assembly 300, so that the frame structure around the display device can be more compact, reducing the space occupied by the frame structure. In addition, compared with the method of setting the hanging ear 311 on the back plate 100 in the existing display device, the hanging ear 311 in the present application solution is set on the front of the middle frame 310, so that the black edge generated by the hanging ear 311 and the black edge generated by the middle frame 310 overlap each other, and the front frame 320 does not need to increase the width to cover the hanging ear 311, thereby reducing the width of the black edge around the display device, increasing the screen-to-body ratio of the display device, and improving the overall aesthetics of the display device.

[0041] In this embodiment, the ear 311 can be understood as a convex block extending from the front of the middle frame 310 to the side away from the back plate 100. There can be multiple ears 311, and the multiple ears 311 are arranged at intervals along the annular track formed by the middle frame 310. Correspondingly, multiple lugs 210 can be arranged around the optical film 200, and the multiple lugs 210 are correspondingly mounted on the multiple ears 311, so that the stability of the optical film 200 in the installation position is maintained by the multiple ears 311. In practical applications, the ear 311 can be integrally formed with the middle frame 310 by injection molding, extrusion molding or bending. Of course, the ear 311 and the middle frame 310 can also be designed separately and then connected as a whole. This application does not make specific limitations on this.

[0042] In this embodiment, the front frame 320 has a vertical panel portion 321, which is located outside the middle frame 310, so as to protect the outer side of the middle frame 310 and provide a light shielding function for the edge of the optical film 200. The outer side of the middle frame 310 refers to the side of the middle frame 310 away from the optical film 200. A clearance hole 3211 is provided on the vertical panel portion 321, and the clearance hole 3211 corresponds to the position of the hanging ear 311. When the lug 210 is mounted on the hanging ear 311, the lug 210 is partially located in the clearance hole 3211.

[0043] In the above manner, the present application accommodates the lug 210 of the optical film 200 in the clearance hole 3211, which is equivalent to using the original width of the vertical panel portion 321 to accommodate the lug 210. Obviously, compared with using the width of the middle frame 310 alone to accommodate the lug 210, the present application can further narrow the width of the middle frame 310, thereby narrowing the overall width of the frame assembly 300, thereby reducing the width of the black borders around the display device, increasing the screen-to-body ratio of the display device, and improving the overall aesthetics of the display device.

[0044] Preferably, considering that the optical film 200 expands due to heat during use, there should be a gap between the lug 210 and the inner wall of the clearance hole 3211 , so as to reserve expansion space for the lug 210 by means of the gap.

[0045] Regarding the specific structure of the above-mentioned clearance hole 3211, this application provides two achievable embodiments for reference.

[0046] Embodiment 1: The above-mentioned clearance hole 3211 can be a blind hole, and the opening end of the blind hole is located on the side of the vertical panel portion 321 close to the middle frame 310. In this way, the lug 210 can extend into the blind hole through the opening end of the blind hole, thereby realizing the use of the original width of the vertical panel portion 321 to accommodate the lug 210 and reserve expansion space for the lug 210, thereby making the overall width of the narrow frame assembly 300.

[0047] Embodiment 2: The above-mentioned clearance hole 3211 can be a through hole. Compared with the clearance hole 3211 being a blind hole, this embodiment sets the clearance hole 3211 as a through hole, which can make fuller use of the original width of the vertical panel part 321 to accommodate the lug 210 and reserve expansion space for the lug 210, thereby further increasing the overall width of the narrow frame assembly 300.

[0048] In this embodiment, a shielding member 330 should be provided on the side of the vertical panel portion 321 away from the middle frame 310, and the shielding member 330 covers the clearance hole 3211, thereby preventing dust and shielding the clearance hole 3211. The shielding member 330 can be a shielding block, a plastic sheet, an adhesive tape or Mylar. For example, if the shielding member 330 is Mylar, one side of the Mylar should be sticky, so that the Mylar is attached to the side of the vertical panel portion 321 away from the middle frame 310 by stickiness.

[0049] In one possible implementation, please refer again to Figure 2 and Figure 3 As shown, the front frame 320 should also have a horizontal panel portion 322. The horizontal panel portion 322 is located on the front of the optical film 200, and is connected to an end of the vertical panel portion 321 away from the back plate 100, and the horizontal panel portion 322 extends from the vertical panel portion 321 to one side of the optical film, thereby shielding the edge of the optical film 200.

[0050] A fixing member 340 is provided on the back of the horizontal panel portion 322, and the fixing member 340 is located above the optical film 200 to restrict the optical film 200 between the fixing member 340 and the middle frame 310. In this embodiment, the highest point of the hanging ear 311 should be higher than the lowest point of the fixing member 340, so as to prevent the optical film 200 from falling off between the fixing member 340 and the hanging ear 311.

[0051] In practical applications, the fixing member 340 is preferably made of foam, which is adhered to the back of the horizontal panel portion 322, so as to use the certain softness and elasticity of the foam to provide a buffering protection for the optical film 200, thereby preventing the optical film 200 from being scratched by direct contact with the front frame 320. In addition, the foam also has a certain viscosity, which can help fix the optical film 200 at a specified position in the display device, and it can provide a certain adhesion to prevent the optical film 200 from shifting or loosening during use, and maintain its stability.

[0052] The middle frame 310 and the front frame 320 may be integrally formed, so that the frame assembly 300 and the back plate 100 can be connected by only connecting the middle frame 310 and / or the front frame 320 to the back plate 100 .

[0053] In order to facilitate the lug 210 to be mounted on the lug 311 through the limiting hole 211, please refer to Figure 4 and Figure 5 In a feasible implementation, the middle frame 310 and the front frame 320 may also be designed as split parts, and the middle frame 310 is connected to the back plate 100, and the front frame 320 is connected to the middle frame 310 through the vertical panel portion 321. In this way, during assembly, the middle frame 310 may be connected to the back plate 100 first, and then the lug 210 of the optical film 200 may be sleeved on the hanging lug 311 through the limiting hole 211, and finally the front frame 320 may be connected to the middle frame 310 through the vertical panel portion 321. In this way, when the optical film 200 is installed, the front frame 320 has not yet formed a shield on the front of the middle frame 310. At this time, the front of the middle frame 310 may have enough space to facilitate the lug 210 to be sleeved on the hanging lug 311 through the limiting hole 211.

[0054] In this embodiment, if Figure 4 As shown, a first flanged sprouting hole 110 may be formed on the back panel 100, and a first connecting hole 316 corresponding to the first flanged sprouting hole 110 may be formed on the middle frame 310, so that the middle frame 310 can be connected to the back panel 100 by screws passing through the first connecting hole 316 and threadedly connected to the first flanged sprouting hole 110.

[0055] Furthermore, a countersunk groove 3161 is formed at one end of the first connection hole 316 close to the back plate 100, and the countersunk groove 3161 is coaxially arranged with the first connection hole 316, and the countersunk groove 3161 cooperates with the outer wall of the flange of the first flanged bud hole 110 to pre-position the middle frame 310. In this way, when installing the middle frame 310, the middle frame 310 can be pre-positioned by first cooperating with the countersunk groove 3161 and the outer wall of the flange of the first flanged bud hole 110, and then the screw is passed through the first connection hole 316 and is threadedly connected with the first flanged bud hole 110 to connect the middle frame 310 with the back plate 100, so as to ensure the accuracy of the installation position of the middle frame 310.

[0056] In this embodiment, if Figure 5 As shown, a threaded hole 317 is opened on the outer side of the middle frame 310, and a second connection hole 318 is opened on the side of the vertical panel portion 321. The front frame 320 can be connected to the middle frame 310 by screws passing through the second connection holes 318 and connecting with the threaded holes 317.

[0057] Based on the same inventive concept, the present application also provides a frame assembly 300. The frame assembly 300 is applied to a display device, and the frame assembly 300 includes a middle frame 310, wherein the middle frame 310 includes a first plate 312, a second plate 313, a third plate 314, and a fourth plate 315 connected end to end in sequence; one end of the first plate 312 and one end of the third plate 314 are respectively provided with a first matching groove 3121, and both ends of the second plate 313 are respectively matched with the two first matching grooves 3121, so that the two ends of the second plate 313 are respectively positioned and spliced ​​with the first plate 312 and the third plate 314; the other end of the first plate 312 and the other end of the third plate 314 are respectively provided with a second matching groove 3122, and both ends of the fourth plate 315 are respectively matched with the two second matching grooves 3122, so that the two ends of the fourth plate 315 are respectively positioned and spliced ​​with the first plate 312 and the third plate 314.

[0058] Furthermore, the display device includes an optical film 200, which is provided with lugs 210 around it, and a hanging ear 311 is provided on the front of the middle frame 310, and the hanging ear 311 is used to cooperate with the limiting hole 211 on the lug 210, so that the lug 210 is sleeved on the hanging ear 311 through the limiting hole 211; the frame assembly 300 also includes a front frame 320, and the front frame 320 has a vertical panel portion 321, and the vertical panel portion 321 is located on the outer side of the middle frame 310, and a clearance hole 3211 is opened on the vertical panel portion 321, and the clearance hole 3211 is used to accommodate the lug 210.

[0059] Regarding the specific structures of the middle frame 310 and the front frame 320 , reference may be made to the detailed description in the above embodiments, which will not be described again herein.

[0060] It can be seen that the technical solution provided by the present application is that the frame assembly includes a middle frame and a front frame, and a hanging ear is set on the front of the middle frame, and the hanging ear is integrated with the frame assembly, so that the frame structure around the display device is more compact. In addition, compared with the method of setting the hanging ear on the back plate in the existing display device, the black edge generated by the hanging ear in the solution of the present application overlaps with the black edge generated by the middle frame, and the front frame does not need to increase the width to cover the hanging ear, thereby reducing the width of the black edge around the display device, increasing the screen-to-body ratio of the display device, and improving the overall aesthetics of the display device.

[0061] At the same time, a clearance hole is opened on the vertical panel of the front frame, and the lug part of the optical film is accommodated in the clearance hole, so that the original width of the vertical panel is used to accommodate the lug and reserve expansion space for the lug. Obviously, compared with using the width of the middle frame alone to accommodate the lug and reserve expansion space for the lug, the present application can further narrow the width of the middle frame, thereby narrowing the overall width of the frame assembly, thereby reducing the width of the black borders around the display device, increasing the screen-to-body ratio of the display device, and improving the overall aesthetics of the display device.

[0062] Furthermore, one end of the first plate body and one end of the third plate body are respectively provided with a first matching groove, and the other end of the first plate body and the other end of the third plate body are respectively provided with a second matching groove, and the second plate body and the fourth plate body can be positioned by relying on the first matching groove and the second matching groove on the first plate body and the third plate body. In this way, the back plate only needs to be provided with a limiting mechanism for positioning the first plate body and the third plate body, and there is no need to provide a limiting structure for positioning the second plate body and the fourth plate body on the back plate, thereby simplifying the structure of the back plate, reducing the processing difficulty of the back plate, and further reducing the processing cost of the back plate. At the same time, it is possible to avoid the limiting structure opened on the back plate from excessively damaging the overall structural strength of the back plate, thereby increasing the service life of the back plate.

[0063] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A display device, characterized in that: The display device comprises at least a back plate (100) and a middle frame (310), wherein the middle frame (310) is located on the front side of the back plate (100), and the middle frame (310) comprises a first plate body (312), a second plate body (313), a third plate body (314), and a fourth plate body (315) which are sequentially connected end to end; One end of the first plate body (312) and one end of the third plate body (314) are respectively provided with a first matching groove (3121), and both ends of the second plate body (313) are respectively matched with the two first matching grooves (3121), so that the two ends of the second plate body (313) are respectively positioned and spliced ​​with the first plate body (312) and the third plate body (314); The other end of the first plate body (312) and the other end of the third plate body (314) are respectively provided with a second matching groove (3122), and the two ends of the fourth plate body (315) are respectively matched with the two second matching grooves (3122), so that the two ends of the fourth plate body (315) are respectively positioned and spliced ​​with the first plate body (312) and the third plate body (314).

2. The display device according to claim 1, characterized in that The first matching groove (3121) located at one end of the first plate body (312) is opened on the top surface of the first plate body (312), and the first matching groove (3121) located at one end of the first plate body (312) extends to the end surface and inner side surface of one end of the first plate body (312); The second matching groove (3122) located at the other end of the first plate body (312) is opened on the top surface of the first plate body (312), and the second matching groove (3122) located at the other end of the first plate body (312) extends to the end surface and inner side surface of the other end of the first plate body (312).

3. The display device according to claim 2, characterized in that The first matching groove (3121) located at one end of the third plate body (314) is opened on the top surface of the third plate body (314), and the first matching groove (3121) located at one end of the third plate body (314) extends to the end surface and inner side surface of one end of the third plate body (314); The second matching groove (3122) located at the other end of the third plate body (314) is opened on the top surface of the third plate body (314), and the second matching groove (3122) located at the other end of the third plate body (314) extends to the end surface and inner side surface of the other end of the third plate body (314).

4. The display device according to claim 3, characterized in that Positioning holes (3123) are respectively formed at both ends of the first plate body (312) and both ends of the third plate body (314); A positioning pin (120) that cooperates with the positioning hole (3123) is connected to the back plate (100), so that the back plate (100) is positioned and connected to the first plate body (312) and the third plate body (314) by the cooperation between the positioning hole (3123) and the positioning pin (120).

5. The display device according to any one of claims 1 to 4, characterized in that: The display device also includes an optical film (200) and a front frame (320); The middle frame (310) is arranged around the optical film (200), and a hanging ear (311) is arranged on the front of the middle frame (310), and the hanging ear (311) cooperates with a limiting hole (211) on the lug (210) of the optical film (200), so that the lug (210) is sleeved on the hanging ear (311) through the limiting hole (211); The front frame (320) has a vertical panel portion (321), the vertical panel portion (321) is located outside the middle frame (310), a clearance hole (3211) is opened on the vertical panel portion (321), and the lug (210) is partially located in the clearance hole (3211).

6. The display device according to claim 5, characterized in that The clearance hole (3211) is a through hole; A shielding member (330) is provided on a side of the vertical panel portion (321) away from the middle frame (310), and the shielding member (330) covers the clearance hole (3211).

7. The display device according to claim 6, characterized in that The shielding member (330) is Mylar, and the Mylar is attached to a side of the vertical panel portion (321) away from the middle frame (310).

8. The display device according to claim 5, characterized in that The clearance hole (3211) is a blind hole, and the opening end of the blind hole is located on a side of the vertical panel portion (321) close to the middle frame (310).

9. The display device according to claim 6, characterized in that The front frame (320) also has a horizontal panel portion (322); The horizontal panel portion (322) is connected to an end of the vertical panel portion (321) away from the back panel (100), and the horizontal panel portion (322) extends from the vertical panel portion (321) toward one side of the optical film (200); A fixing member (340) is provided on the back of the horizontal panel portion (322), and the fixing member (340) is located above the optical film (200) so as to restrict the optical film (200) between the fixing member (340) and the middle frame (310).

10. The display device according to claim 9, characterized in that The middle frame (310) is connected to the back panel (100), and the front frame (320) is connected to the middle frame (310) via the vertical panel portion (321).

11. A frame assembly, characterized in that: The frame assembly (300) is applied to a display device, and the frame assembly (300) comprises a middle frame (310), wherein the middle frame (310) comprises a first plate body (312), a second plate body (313), a third plate body (314), and a fourth plate body (315) which are sequentially connected end to end; One end of the first plate body (312) and one end of the third plate body (314) are respectively provided with a first matching groove (3121), and both ends of the second plate body (313) are respectively matched with the two first matching grooves (3121), so that the two ends of the second plate body (313) are respectively positioned and spliced ​​with the first plate body (312) and the third plate body (314); The other end of the first plate body (312) and the other end of the third plate body (314) are respectively provided with a second matching groove (3122), and the two ends of the fourth plate body (315) are respectively matched with the two second matching grooves (3122), so that the two ends of the fourth plate body (315) are respectively positioned and spliced ​​with the first plate body (312) and the third plate body (314).

12. The frame assembly according to claim 11, characterized in that: The display device comprises an optical film (200), the optical film (200) is provided with lugs (210) around its periphery, the front surface of the middle frame (310) is provided with a hanging lug (311), the hanging lug (311) is used to cooperate with a limiting hole (211) on the lug (210), so that the lug (210) is sleeved on the hanging lug (311) through the limiting hole (211); The frame assembly (300) further comprises a front frame (320), wherein the front frame (320) comprises a vertical panel portion (321), wherein the vertical panel portion (321) is located outside the middle frame (310), and a clearance hole (3211) is provided on the vertical panel portion (321), wherein the clearance hole (3211) is used to accommodate the lug (210).

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