Display device

Abstract

The utility model relates to a display device which comprises a bottom decoration strip, a back plate and a rear shell, and the rear shell comprises a middle shell body and two side shell bodies located on the two sides of the middle shell body; the sides, facing the bottom decoration strip, of the middle shell and the side shells are each provided with a first clamping part, and the first clamping parts are clamped with the bottom decoration strip. A second clamping part is arranged on the side, away from the bottom decoration strip, of the middle shell, and the second clamping part is clamped with the back plate. The side edge of the middle shell is provided with a third clamping part, and the third clamping part is clamped with the back plate; a fourth clamping part is arranged on the side, away from the bottom decoration strip, of the side shell, and the fourth clamping part and the back plate are clamped. The display device is clamped and fixed with the decoration strip and the back plate through the middle shell and the side shell, so that the rear shell is prevented from being fixed with the back plate through bolts, the mounting convenience of an operator is improved, and the attractiveness of the rear shell is also improved.

Description

Technical Field

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

[0002] With the improvement of living standards, television has become an indispensable part of people's daily life.

[0003] However, the rear shell of the current TV is fixed to the back plate of the TV by a large number of bolts (22 bolts), which makes it difficult for the operator to install, and the surface of the rear shell after installation shows a plurality of bolts, which is poor in appearance. Utility Model Content

[0004] The purpose of the present application is to provide a display device, which is fixed by snapping together the decorative strip and the back plate through the middle shell and the side shell, avoiding the need to fix the back plate with bolts, thereby improving the convenience of installation for the operator and improving the appearance of the back plate.

[0005] To this end, an embodiment of the present application provides a display device, including a bottom decorative strip, a back panel and a rear shell, the rear shell including an intermediate shell and two side shells located on both sides of the intermediate shell; a first clamping portion is provided on the side of the intermediate shell and the side shell facing the bottom decorative strip, and the first clamping portion is clamped with the bottom decorative strip; a second clamping portion is provided on the side of the intermediate shell away from the bottom decorative strip, and the second clamping portion is clamped with the back panel; a third clamping portion is provided on the side of the intermediate shell, and the third clamping portion is clamped with the back panel; a fourth clamping portion is provided on the side of the side shell away from the bottom decorative strip, and the fourth clamping portion is clamped with the back panel.

[0006] In a possible implementation, the bottom decorative strip is provided with a first protrusion and a first groove, the first engaging portion is provided with a second protrusion and a second groove, the first protrusion engages with the second groove, and the first groove engages with the second protrusion.

[0007] In a possible implementation, the back panel is provided with a first snap-fitting opening, a portion of the second snap-fitting portion extends into the first snap-fitting opening, a snap-fitting groove is provided on the side of the second snap-fitting portion facing away from the bottom decorative strip, and the back panel extends into the snap-fitting groove on the side of the first snap-fitting opening facing away from the bottom decorative strip.

[0008] In a possible implementation manner, a third groove and a fourth groove are respectively provided on both sides of the second engaging portion along the thickness direction of the intermediate shell, and the third groove and the fourth groove extend along the length direction of the second engaging portion.

[0009] In a possible implementation manner, the back plate is provided with a second engaging opening, and a portion of the third engaging portion extends into the second engaging opening and abuts against the back plate.

[0010] In a possible implementation, the back plate is provided with a third snap-fitting opening, the fourth snap-fitting portion extends into the third snap-fitting opening and abuts against the back plate, the fourth snap-fitting portion is provided with a first through hole, and the first through hole extends along the length direction of the fourth snap-fitting portion.

[0011] In a possible implementation manner, a connecting portion is provided between the fourth engaging portion and the side shell, the connecting portion is provided with a second through hole, and the second through hole extends along the length direction of the fourth engaging portion.

[0012] In a possible implementation, the first engaging portion is provided with a first inclined surface, the second engaging portion is provided with a second inclined surface, the third engaging portion is provided with a third inclined surface, and the fourth engaging portion is provided with a fourth inclined surface.

[0013] In a possible implementation manner, portions of the back plate that are engaged with the second engaging portion, the third engaging portion, or the fourth engaging portion are all bent to form folded edges.

[0014] In a possible implementation manner, the intermediate housing is a fireproof housing.

[0015] According to the display device provided by the embodiment of the present application, the display device includes a bottom decorative strip, a back plate and a rear shell, and the rear shell includes an intermediate shell and two side shells located on both sides of the intermediate shell; the intermediate shell and the side shell are both provided with a first clamping portion on the side facing the bottom decorative strip, and the first clamping portion is clamped with the bottom decorative strip; the intermediate shell is provided with a second clamping portion on the side away from the bottom decorative strip, and the second clamping portion is clamped with the back plate; the side of the intermediate shell is provided with a third clamping portion, and the third clamping portion is clamped with the back plate; the side of the side shell is provided with a fourth clamping portion on the side away from the bottom decorative strip, and the fourth clamping portion is clamped with the back plate. The display device is clamped and fixed with the decorative strip and the back plate through the intermediate shell and the side shell, avoiding the rear shell from being fixed by bolts, improving the convenience of installation by the operator, and also improving the beauty of the rear shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0019] Figure 1 A schematic diagram showing the structure of a display device provided in an embodiment of the present application is shown;

[0020] Figure 2 Show Figure 1 A cross-sectional view of the display device AA shown;

[0021] Figure 3 Show Figure 1 A cross-sectional view of the display device BB shown;

[0022] Figure 4 Show Figure 1 A cross-sectional view of the display device CC shown;

[0023] Figure 5 Show Figure 1 A cross-sectional view of a display device DD is shown.

[0024] Description of reference numerals:

[0025] 1. Decorative strip; 11. First protrusion; 111. Fifth inclined plane; 12. First groove; 2. Back plate; 22. Second engaging opening; 23. Third engaging opening; 24. Folding edge; 3. Rear shell; 31. Intermediate shell; 32. Side shell; 4. First engaging portion; 41. Second protrusion; 42. Second groove; 43. First inclined plane; 5. Second engaging portion; 51. Engaging groove; 52. Third groove; 53. Fourth groove; 54. Second inclined plane; 6. Third engaging portion; 61. Third inclined plane; 7. Fourth engaging portion; 71. First through hole; 72. Connecting portion; 721. Second through hole; 73. Fourth inclined plane. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0028] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0029] Figure 1 A schematic diagram showing the structure of a display device provided in an embodiment of the present application is shown. Figure 2 Show Figure 1 The cross-sectional view of the display device AA shown in FIG. Figure 3 Show Figure 1 The cross-sectional view of the display device BB shown in FIG. Figure 4 Show Figure 1 The cross-sectional view of the display device CC shown, Figure 5 Show Figure 1 A cross-sectional view of a display device DD is shown.

[0030] like Figures 1 to 5As shown, an embodiment of the present application provides a display device, which includes a bottom decorative strip 1, a back panel 2 and a rear shell 3, wherein the rear shell 3 includes an intermediate shell 31 and two side shells 32 located on both sides of the intermediate shell 31; a first clamping portion 4 is provided on the side of the intermediate shell 31 and the side shell 32 facing the bottom decorative strip 1, and the first clamping portion 4 is clamped with the bottom decorative strip 1; a second clamping portion 5 is provided on the side of the intermediate shell 31 away from the bottom decorative strip 1, and the second clamping portion 5 is clamped with the back panel 2; a third clamping portion 6 is provided on the side of the intermediate shell 31, and the third clamping portion 6 is clamped with the back panel 2; a fourth clamping portion 7 is provided on the side of the side shell 32 away from the bottom decorative strip 1, and the fourth clamping portion 7 is clamped with the back panel 2.

[0031] It should be understood that the rear shell 3 includes a middle shell 31 and two side shells 32 , the middle shell 31 is provided with a first clamping portion 4 , a second clamping portion 5 and a third clamping portion 6 , and the two side shells 32 are provided with a first clamping portion 4 and a fourth clamping portion 7 .

[0032] The first snap-fitting portion 4 is located on the side of the middle shell 31 facing the bottom decorative strip 1 , and is also located on the side of the side shell 32 facing the bottom decorative strip 1 . The first snap-fitting portion 4 is used to snap-fit ​​with the bottom decorative strip 1 , thereby snap-fitting and connecting the lower side of the middle shell 31 and the lower side of the side shell 32 with the bottom decorative strip 1 .

[0033] In one example, when the first locking portion 4 is a groove, the bottom decorative strip 1 is provided with a protrusion that engages with the groove; when the first locking portion 4 is a protrusion, the bottom decorative strip 1 is provided with a groove that engages with the protrusion, thereby locking the first locking portion 4 with the bottom decorative strip 1.

[0034] The second engaging portion 5 is disposed on a side of the intermediate housing 31 away from the bottom decorative strip 1, that is, the second engaging portion 5 is located on the upper side of the intermediate housing 31, and the second engaging portion 5 is engaged with the back plate 2, thereby engaging the upper end of the intermediate housing 31 with the back plate 2. In one example, when the second engaging portion 5 is a groove, the back plate 2 is provided with a protrusion engaged with the groove, and when the second engaging portion 5 is a protrusion, the back plate 2 is provided with a groove engaged with the protrusion, thereby engaging the second engaging portion 5 with the back plate 2.

[0035] The third engaging portion 6 is disposed on the side of the intermediate housing 31, and the third engaging portion 6 is engaged with the back plate 2, thereby engaging the side edge of the intermediate housing 31 with the back plate 2. In one example, when the third engaging portion 6 is a groove, the back plate 2 is provided with a protrusion engaged with the groove, and when the third engaging portion 6 is a protrusion, the back plate 2 is provided with a groove engaged with the protrusion, thereby engaging the third engaging portion 6 with the back plate 2.

[0036] The fourth engaging portion 7 is disposed on the side of the side housing 32 away from the bottom decorative strip 1, that is, located on the upper side of the side housing 32, and the fourth engaging portion 7 is engaged with the back plate 2, thereby engaging the upper side of the side housing 32 with the back plate 2. In one example, when the fourth engaging portion 7 is a groove, the back plate 2 is provided with a protrusion engaged with the groove, and when the fourth engaging portion 7 is a protrusion, the back plate 2 is provided with a groove engaged with the protrusion, thereby engaging the fourth engaging portion 7 with the back plate 2.

[0037] During installation, the two side shells 32 are first clamped to the decorative strip 1 and the back panel 2 through the first clamping part 4 and the fourth clamping part 7, and then the middle shell 31 is clamped to the decorative strip 1 and the back panel 2 through the first clamping part 4, the second clamping part 5 and the third clamping part 6, so that the rear shell 3 is clamped to the bottom decorative strip 1 and the back panel 2. Compared with the bolt connection, it is more convenient for the operator to operate, and the rear shell 3 after installation has no bolts, which saves the cost of bolts and improves the aesthetics of the installation of the rear shell 3.

[0038] Reference Figure 1 and Figure 2 In some optional embodiments, the bottom decorative strip 1 is provided with a first protrusion 11 and a first groove 12, the first engaging portion 4 is provided with a second protrusion 41 and a second groove 42, the first protrusion 11 engages with the second groove 42, and the first groove 12 engages with the second protrusion 41. During installation, the first protrusion 11 is inserted into the second groove 42 so that the first protrusion 11 and the second groove 42 engage, and the second protrusion 41 is inserted into the first groove 12 so that the second protrusion 41 and the first groove 12 engage, thereby engaging the first engaging portion 4 with the bottom decorative strip 1.

[0039] The arrangement of the first protrusion 11 , the first groove 12 , the second protrusion 41 and the second groove 42 further improves the stability of the engagement between the first engaging portion 4 and the bottom decorative strip 1 , thereby improving the stability of the engagement between the middle shell 31 and the side shell 32 and the bottom decorative strip 1 .

[0040] Reference Figure 1 and Figure 3 In some optional embodiments, the back plate 2 is provided with a first snap-fit ​​opening, a portion of the second snap-fit ​​portion 5 extends into the first snap-fit ​​opening, a snap-fit ​​groove 51 is provided on the side of the second snap-fit ​​portion 5 away from the bottom decorative strip 1, and the back plate 2 extends into the snap-fit ​​groove 51 on the side of the first snap-fit ​​opening away from the bottom decorative strip 1. The first snap-fit ​​opening extends along the length direction of the back plate 2.

[0041] During installation, part of the second snap-fitting portion 5 is extended into the first snap-fitting opening so that the second snap-fitting portion 5 is snap-fitted with the back panel 2. At this time, the back panel 2 above the first snap-fitting opening is extended into the snap-fitting groove 51, which further improves the accuracy of the snap-fitting between the second snap-fitting portion 5 and the back panel 2. At the same time, the second snap-fitting portion 5 also supports the back panel 2 to reduce the force on the back panel 2, thereby completing the snap-fitting and fixing of the side of the intermediate shell 31 away from the bottom decorative strip 1 with the back panel 2.

[0042] Furthermore, the back plate 2 above the first snap-fitting opening is staggered with the back plate 2 below the first snap-fitting opening, the back plate 2 above the first snap-fitting opening is located on the side of the back plate 2 below the first snap-fitting opening facing the middle housing 31, and a fitting groove that fits with the back plate 2 is provided on the side below the second snap-fitting portion 5 facing the back plate 2, so that the back plate 2 below the first snap-fitting opening is located in the fitting groove and the outer side abuts against the second snap-fitting portion 5. The accuracy of the second snap-fitting portion 5 and the back plate 2 is further improved.

[0043] In some optional embodiments, the second engaging portion 5 is provided with a third groove 52 and a fourth groove 53 on both sides of the thickness direction of the intermediate shell 31, respectively, and the third groove 52 and the fourth groove 53 extend along the length direction of the second engaging portion 5. Since the second engaging portion 5 needs to engage and support the back plate 2, the second engaging portion 5 needs to have a certain thickness, but when preparing a thicker second engaging portion 5, shrinkage and deformation are likely to occur, so the preparation of the third groove 52 and the fourth groove 53 is required to avoid deformation of the second engaging portion 5 during the preparation process, and the provision of the third groove 52 and the fourth groove 53 can also reduce the material of the second engaging portion 5, thereby saving the cost of the second engaging portion 5 and the back shell 3.

[0044] Reference Figure 1 and Figure 4 In some optional embodiments, the back plate 2 is provided with a second snap-fitting opening 22, and a portion of the third snap-fitting portion 6 extends into the second snap-fitting opening 22 and abuts against the back plate 2. The second snap-fitting opening 22 extends along the height direction of the back plate 2, and two second snap-fitting openings 22 are provided. Two third snap-fitting portions 6 are respectively provided on the left and right sides of the intermediate shell 31, and the two third snap-fitting portions 6 correspond to the two second snap-fitting openings 22 respectively. A portion of the third snap-fitting portion 6 extends into the second snap-fitting opening 22, and the extended portion abuts against the inner side of the back plate 2, so that the third snap-fitting portion 6 is snap-fitted with the back plate 2, and further the left and right sides of the intermediate shell 31 are snap-fitted with the back plate 2.

[0045] Reference Figure 1 and Figure 5In some optional embodiments, the back plate 2 is provided with a third snap-fitting opening 23, the fourth snap-fitting portion 7 extends into the third snap-fitting opening 23 and abuts against the back plate 2, the fourth snap-fitting portion 7 is provided with a first through hole 71, and the first through hole 71 extends along the length direction of the fourth snap-fitting portion 7. The third snap-fitting opening 23 extends along the length direction of the back plate 2, and two third snap-fitting openings 23 are provided and are respectively located on both sides of the middle shell 31, and the fourth snap-fitting portions 7 of the two side shells 32 correspond to the two third snap-fitting openings 23.

[0046] The fourth engaging portion 7 extends into the third engaging opening 23 and bends upward, so that the fourth engaging portion 7 abuts against the inner side of the back plate 2, thereby engaging and fixing the fourth engaging portion 7 to the back plate 2, and then engaging and fixing the upper part of the side shell 32 to the back plate 2, while also supporting the back plate 2.

[0047] Furthermore, the fourth clamping portion 7 is provided with a first through hole 71, and the first through hole 71 extends along the length direction of the back panel 2. Since the fourth clamping portion 7 needs to clamp and support the back panel 2, the fourth clamping portion 7 requires a certain thickness. However, when preparing a thicker fourth clamping portion 7, shrinkage and deformation are prone to occur. Therefore, the preparation of the first through hole 71 is required to avoid deformation of the fourth clamping portion 7 during the preparation process. In addition, the provision of the first through hole 71 can also reduce the material of the fourth clamping portion 7, thereby saving the cost of the fourth clamping portion 7 and the back shell 3.

[0048] In some optional embodiments, a connecting portion 72 is provided between the fourth engaging portion 7 and the side housing 32, and the connecting portion 72 is provided with a second through hole 721 and the second through hole 721 extends along the length direction of the fourth engaging portion 7. The connecting portion 72 connects the fourth engaging portion 7 with the side housing 32, and because the fourth engaging portion 7 needs to engage and support the back plate 2, the connecting portion 72 also needs a certain thickness, but when preparing a thicker connecting portion 72, shrinkage and deformation are likely to occur, so the preparation of the second through hole 721 is required to avoid deformation of the connecting portion 72 during the preparation process, and the provision of the second through hole 721 can also reduce the material of the connecting portion 72, thereby saving the cost of the connecting portion 72 and the rear housing 3.

[0049] Reference Figure 1-Figure 4 In some optional embodiments, the first engaging portion 4 is provided with a first inclined surface 43 , the second engaging portion 5 is provided with a second inclined surface 54 , the third engaging portion 6 is provided with a third inclined surface 61 , and the fourth engaging portion 7 is provided with a fourth inclined surface 73 .

[0050] The first engaging portion 4 is provided with a first inclined surface 43, and the first inclined surface 43 is located at the end of the second protrusion 41. The setting of the first inclined surface 43 facilitates the second protrusion 41 of the first engaging portion 4 to extend into the first groove 12, and the first protrusion 11 of the decorative strip 1 is provided with a fifth inclined surface 111. The setting of the fifth inclined surface 111 facilitates the first protrusion 11 to extend into the second groove 42, thereby improving the convenience of installing the first engaging portion 4 and the decorative strip 1.

[0051] The second engaging portion 5 is provided with a second inclined surface 54 . The second inclined surface 54 facilitates the second engaging portion 5 to partially extend into the first engaging opening of the back plate 2 , thereby improving the convenience of installing the second engaging portion 5 and the back plate 2 .

[0052] The third engaging portion 6 is provided with a third inclined surface 61 . The third inclined surface 61 is provided to facilitate the third engaging portion 6 to extend into the second engaging opening 22 of the back plate 2 , thereby improving the convenience of installing the third engaging portion 6 and the back plate 2 .

[0053] The fourth engaging portion 7 is provided with a fourth inclined surface 73 , and the fourth inclined surface 73 is also provided to facilitate the fourth engaging portion 7 to extend into the third engaging opening 23 of the back plate 2 , thereby improving the convenience of installing the fourth engaging portion 7 and the back plate 2 .

[0054] In some optional embodiments, the portions of the back plate 2 that engage with the second engaging portion 5, the third engaging portion 6 or the fourth engaging portion 7 are all bent to form a folded edge 24. The back plate 2 is bent at the upper side of the first engaging opening to form a folded edge 24, thereby preventing the second engaging portion 5 from being damaged when the back plate 2 extends into the engaging groove 51 of the second engaging portion 5, and protecting the second engaging portion 5. The back plate 2 is bent at the side where the second engaging opening 22 engages with the third engaging portion 6 to form a folded edge 24, and protecting the third engaging portion 6. The back plate 2 is bent at the upper side of the third engaging opening 23 to form a folded edge 24, thereby preventing the fourth engaging portion 7 from being damaged when the back plate 2 engages with the fourth engaging portion 7, and protecting the fourth engaging portion 7.

[0055] Reference Figure 1 In some optional embodiments, the middle shell 31 is a fireproof shell. The middle shell 31 is a fireproof shell, which can accurately protect the power supply and motherboard of the display. The side shell 32 can be a fireproof shell or not. In one example, the side shell 32 is made of non-fireproof plastic material, which can reduce the production cost of the display.

[0056] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0057] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0058] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A display device, comprising a bottom decorative strip, a back plate and a rear shell, characterized in that: The rear shell includes a middle shell and two side shells located on both sides of the middle shell; The middle shell and the side shell facing the bottom decorative strip are both provided with a first engaging portion, and the first engaging portion is engaged with the bottom decorative strip; A second engaging portion is provided on a side of the intermediate housing away from the bottom decorative strip, and the second engaging portion is engaged with the back plate; A third clamping portion is provided on the side of the intermediate shell, and the third clamping portion is clamped with the back plate; A fourth clamping portion is provided on a side of the side shell away from the bottom decorative strip, and the fourth clamping portion is clamped with the back plate.

2. The display device according to claim 1, characterized in that The bottom decorative strip is provided with a first protrusion and a first groove, the first engaging portion is provided with a second protrusion and a second groove, the first protrusion is engaged with the second groove, and the first groove is engaged with the second protrusion.

3. The display device according to claim 1, characterized in that The back plate is provided with a first snap-fitting opening, part of the second snap-fitting portion extends into the first snap-fitting opening, a snap-fitting groove is provided on the side of the second snap-fitting portion away from the bottom decorative strip, and the back plate extends into the snap-fitting groove on the side of the first snap-fitting opening away from the bottom decorative strip.

4. The display device according to claim 3, characterized in that: A third groove and a fourth groove are respectively provided on both sides of the second engaging portion along the thickness direction of the intermediate shell, and the third groove and the fourth groove extend along the length direction of the second engaging portion.

5. The display device according to claim 1, characterized in that The back plate is provided with a second clamping opening, and a portion of the third clamping portion extends into the second clamping opening and abuts against the back plate.

6. The display device according to claim 1, characterized in that: The back plate is provided with a third clamping opening, the fourth clamping portion extends into the third clamping opening and abuts against the back plate, the fourth clamping portion is provided with a first through hole, and the first through hole extends along the length direction of the fourth clamping portion.

7. The display device according to claim 6, characterized in that: A connecting portion is provided between the fourth engaging portion and the lateral housing, the connecting portion is provided with a second through hole, and the second through hole extends along the length direction of the fourth engaging portion.

8. The display device according to claim 1, characterized in that: The first engaging portion is provided with a first inclined surface, the second engaging portion is provided with a second inclined surface, the third engaging portion is provided with a third inclined surface, and the fourth engaging portion is provided with a fourth inclined surface.

9. The display device according to claim 1, characterized in that: Portions of the back plate that are engaged with the second engaging portion, the third engaging portion or the fourth engaging portion are all bent to form folded edges.

10. The display device according to claim 1, characterized in that The intermediate shell is a fireproof shell.

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