Display device

Abstract

The display device comprises a display module, the display module comprises a first face and a second face which are oppositely arranged, and a side face connected between the first face and the second face, and at least one part of the first face is a display face; the side frames are located on the periphery of the display module, at least one side frame comprises a first side wall, a supporting column and a plurality of heat dissipation protrusions, the supporting column and the heat dissipation protrusions are arranged on the first side wall, the heat dissipation protrusions are arranged at intervals, and the first side wall is arranged opposite to the side face of the display module. The supporting column and the heat dissipation protrusions are arranged on the side, facing the display module, of the first side wall, the supporting column makes contact with the side face of the display module, and the height of the supporting column is larger than that of the heat dissipation protrusions so that gaps can be formed between the display module and the heat dissipation protrusions.

Description

Technical Field

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

[0002] High-brightness LCD screens are products with higher brightness than ordinary LCD screens. The brightness of high-brightness LCD screens can reach 2000nits, while the brightness of ordinary LCD screens is around 500nits, which cannot be seen clearly outdoors. The principle of high-brightness LCD screens is that the backlight source has high brightness, which can be higher than the maximum outdoor brightness of more than 2000nits. It is still clearly visible under strong outdoor light. High-brightness LCD screens are widely used, including bus stops, outdoor advertising machines, charging piles, gas stations, express cabinets, and self-service inquiry machines in telecommunications bureaus, tax operation bureaus, banks, hospitals, etc., and electronic newspaper racks in urban streets, parks, schools, etc. In addition, they are also widely used in industry, security, commercial display, media, real estate and other fields. Summary of the invention

[0003] The present disclosure provides a display device.

[0004] The present disclosure provides a display device, comprising:

[0005] A display module, the display module comprising a first surface and a second surface arranged opposite to each other, and a side surface connected between the first surface and the second surface, wherein at least a portion of the first surface is a display surface;

[0006] There are multiple side frames located around the display module, at least one of which includes a first side wall, a support column arranged on the first side wall, and a plurality of heat dissipation protrusions spaced from each other, the first side wall is arranged opposite to the side of the display module, the support column and the plurality of heat dissipation protrusions are arranged on the side of the first side wall facing the display module, the support column is in contact with the side of the display module, and the height of the support column is greater than the height of the heat dissipation protrusion, so that a gap is formed between the display module and the heat dissipation protrusion.

[0007] In some embodiments, the height difference between the support column and the heat dissipation protrusion is between 0.5 and 1 mm.

[0008] In some embodiments, the thickness of the first side wall is between 1.5 and 3 mm.

[0009] In some embodiments, at least one of the side frames further includes a second side wall connected to the first side wall, and at least a portion of the second side wall is located on a side of the display module away from the second surface;

[0010] A groove is provided on a side of the second side wall facing the first surface.

[0011] In some embodiments, the depth of the groove is between 0.5 and 1.0 mm.

[0012] In some embodiments, the second side wall includes a first edge away from the first side wall and extending along the length direction of the side frame, and the distance between the first edge and the groove is between 0.5 and 1.0 mm.

[0013] In some embodiments, a distance between a bottom surface of the groove facing the first surface and a surface of the second side wall away from the first surface is between 1.0 and 3.0 mm.

[0014] In some embodiments, the plurality of heat dissipation protrusions include at least one of: a plurality of first heat dissipation fins, a plurality of second heat dissipation fins, and a plurality of heat dissipation columns;

[0015] Wherein, the plurality of first heat dissipation fins are arranged along the thickness direction of the display module, and each of the first heat dissipation fins extends along the length direction of the first side wall;

[0016] The plurality of second heat dissipation fins are arranged along the length direction of the first side wall, and each of the second heat dissipation fins extends along the thickness direction of the display module;

[0017] The plurality of heat dissipation columns are arranged in an array.

[0018] In some embodiments, the heat dissipation protrusion includes a plurality of first heat dissipation fins, the thickness of the first heat dissipation fins is between 1.5 and 3 mm, and the distance between two adjacent first heat dissipation fins is between 1.5 and 2.5 mm.

[0019] In some embodiments, the plurality of heat dissipation protrusions include a plurality of second heat dissipation fins, the thickness of the second heat dissipation fins is between 1.5 and 3 mm, and the distance between two adjacent second heat dissipation fins is between 1.5 and 2.5 mm.

[0020] In some embodiments, the multiple heat dissipation protrusions include multiple heat dissipation columns, and the dimensions of the heat dissipation columns in the thickness direction of the display module and in the length direction of the first side wall are both between 1.5 and 3 mm, and the distance between two adjacent heat dissipation columns in the same row and between two adjacent heat dissipation columns in the same column are both between 1.5 and 2.5 mm.

[0021] In some embodiments, the plurality of side frames include at least one first side frame and at least one second side frame, the first side frame and the second side frame are located on two adjacent sides of the display module, and the two are detachably connected;

[0022] The first side frame and the second side frame both include the first side wall, the support column and the heat dissipation protrusion.

[0023] In some embodiments, the first side frame and the second side frame both include a second side wall, the second side wall is connected to the first side wall, and at least partially located on a side of the display module away from the second surface;

[0024] A first matching portion is provided at an end of the second side wall of the first side frame close to the second side frame, and the second side wall of the second side frame includes a second matching portion, and the second matching portion cooperates with the first matching portion to form a first limiting structure;

[0025] The first side frame also includes a third matching portion, which is arranged opposite to the second side wall of the first side frame and connected to the first side wall of the first side frame; the second side frame also includes a fourth matching portion, which is arranged opposite to the second side wall of the second side frame and connected to the first side wall of the second side frame; the third matching portion and the fourth matching portion cooperate with each other to form a second limiting structure.

[0026] In some embodiments, the first mating portion includes a mortise and tenon groove located on the first side frame, the mortise and tenon groove includes a first bottom surface facing the third mating portion and a first side surface connected to the first bottom surface; the second mating portion includes a second side surface that is in contact with the first side surface, and the first side surface and the second side surface are both inclined surfaces.

[0027] In some embodiments, a first mounting hole is provided on the third mating portion, and a second mounting hole opposite to the first mounting hole is provided on the fourth mating portion; the display device also includes a first fastener, which passes through the first mounting hole and the second mounting hole and is used to detachably connect the first side frame and the second side frame.

[0028] In some embodiments, the display device further includes a rear shell, the rear shell including a shell bottom wall and a shell side wall connected to the shell bottom wall, the shell bottom wall and the shell side wall define a receiving space, and the shell bottom wall is located on a side of the receiving space away from the display module;

[0029] The side frame further includes a mounting wall, which is fixedly connected to the first side wall and is located in the accommodating space, and is connected to the shell side wall.

[0030] In some embodiments, a third mounting hole is provided on the mounting wall, and a fourth mounting hole is provided on the side wall of the housing; the display device further comprises a second fastener, the second fastener passes through the fourth mounting hole and extends into the third mounting hole, and is used to detachably connect the mounting wall to the side wall of the housing;

[0031] The shell side wall includes an inner recess, and the fourth mounting hole is located on the inner recess.

[0032] In some embodiments, the support column and the first side wall are connected as an integral structure.

[0033] In some embodiments, the support column is a conductor and includes a support body and an embedded portion connected to the support body, the support body is located on the side of the embedded portion facing the display module, the orthographic projection of the embedded portion on the side of the display module covers and exceeds the orthographic projection of the support body on the side of the display module; the embedded portion is embedded in the first side wall.

[0034] In some embodiments, the embedding depth of the embedded portion in the first side wall is between 1.5 and 2.5 mm.

[0035] In some embodiments, an embedding groove is provided on the first side wall, the embedding portion is embedded into the first side wall through the side wall of the embedding groove, and the width of the embedding portion embedded into the first side wall is between 1.0 and 2.0 mm.

[0036] In some embodiments, a fifth mounting hole is provided in the support column, and the display device further includes a fifth fastener, and the fifth fastener passes through the fifth mounting hole and is connected to the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0038] Figure 1 It is an overall schematic diagram of a display device provided in some embodiments of the present disclosure.

[0039] Figure 2 A schematic diagram of the connection of multiple side frames of a display device provided in some embodiments of the present disclosure.

[0040] Figure 3 An exploded view of multiple side frames provided in some embodiments of the present disclosure.

[0041] Figure 4 For along Figure 1 Sectional view along line A-A'.

[0042] Figure 5 A partial schematic diagram of a display module provided in some embodiments of the present disclosure.

[0043] Figure 6A cross-sectional view of one of the side frames provided in some embodiments of the present disclosure.

[0044] Figures 7 to 12 Six distribution diagrams of heat dissipation protrusions provided in some embodiments of the present disclosure.

[0045] Fig.13 It is a schematic diagram of a rear shell provided in some embodiments of the present disclosure.

[0046] Fig.14A A plan view of a first side frame provided in some embodiments of the present disclosure.

[0047] Fig. 14B for Fig.14A A partial enlarged view of the middle Q1 area.

[0048] Fig.15 for Fig.14A Stereoscopic image of the middle Q1 region.

[0049] Fig.16 This is a stereoscopic view of a second side frame provided in some embodiments of the present disclosure.

[0050] Fig.17 A partial stereoscopic view of a second side frame provided in some embodiments of the present disclosure.

[0051] Fig.18 A cross-sectional view of a connection position between a first side frame and a second side frame provided in some embodiments of the present disclosure.

[0052] Fig.19 A schematic diagram of a support column and a first side wall provided in some embodiments of the present disclosure.

[0053] Fig. 20 Another schematic diagram of the support column and the first side wall provided in some embodiments of the present disclosure.

[0054] Fig.21 This is a stereoscopic diagram of the position of the second side frame close to the third side frame provided in some embodiments of the present disclosure.

[0055] Fig. 22 This is a schematic diagram of a third side frame provided in some embodiments of the present disclosure. DETAILED DESCRIPTION

[0056] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0057] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0058] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0059] As used herein, "parallel" and "perpendicular" include the described situation and the situation similar to the described situation, and the range of the similar situation is within the acceptable deviation range, wherein the acceptable deviation range is determined by a person of ordinary skill in the art taking into account the measurement in question and the error associated with the measurement of a specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity can also be, for example, a deviation within 5°.

[0060] It will be understood that when a layer or an element is referred to as being on another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may be present between the layer or element and the other layer or substrate.

[0061] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of layers and regions are exaggerated for clarity. Therefore, variations in shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances are conceivable. Therefore, the exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but include shape deviations due to, for example, manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to illustrate the actual shape of regions of the device, and are not intended to limit the scope of the exemplary embodiments.

[0062] It should be noted that the description of the numerical range "m1-m2" in the embodiments of the present disclosure includes the endpoint values ​​m1 and m2.

[0063] High-brightness LCD screens are products with higher brightness than ordinary LCD screens. The brightness of high-brightness LCD screens can reach 2000nits, while the brightness of ordinary LCD screens is around 500nits, which cannot be seen clearly outdoors. The principle of high-brightness LCD screens is that the backlight source has high brightness, which can be higher than the maximum outdoor brightness of more than 2000nits. It is still clearly visible under strong outdoor light. High-brightness LCD screens are widely used, including bus stops, outdoor advertising machines, charging piles, gas stations, express cabinets, and self-service inquiry machines in telecommunications bureaus, tax operation bureaus, banks, hospitals, etc., and electronic newspaper racks in urban streets, parks, schools, etc. In addition, they are also widely used in industry, security, commercial display, media, real estate and other fields.

[0064] High-brightness display means high power consumption. High power consumption means that the product's heat source efficiency is extremely high. Effective heat dissipation measures can be used to ensure normal use of the product. However, how to lower the temperature of the product's surface components while ensuring the normal use temperature of the product so that consumers do not feel obvious discomfort caused by the increased surface temperature of the product during use is a technical problem that needs to be urgently solved in this field.

[0065] Figure 1 is an overall schematic diagram of a display device provided in some embodiments of the present disclosure, Figure 2 is a schematic diagram of connecting multiple side frames of a display device provided in some embodiments of the present disclosure, Figure 3 is an exploded view of multiple side frames provided in some embodiments of the present disclosure, Figure 4 For along Figure 1 The cross-sectional view of the A-A' line, Figure 5 is a partial schematic diagram of a display module provided in some embodiments of the present disclosure, Figure 6 1 is a cross-sectional view of one of the side frames provided in some embodiments of the present disclosure. Figures 1 to 6As shown, the display device includes a display module 10 and a plurality of side frames 20 located around the display module 10. For example, the display module 10 is a rectangular structure, and each side of the display module 10 is provided with a side frame 20.

[0066] The display module 10 may be a liquid crystal display module 10, which may include a liquid crystal display panel 11 and a backlight source. In some examples, the display module 10 may be a highlight display module 10, which may also include a driving structure such as a driving circuit board located on the side of the backlight source away from the liquid crystal display panel 11.

[0067] The display module 10 includes a first surface 101 and a second surface 102 that are arranged opposite to each other, and a side surface 103 connected therebetween, and at least a portion of the first surface 101 is a display surface. That is, the surface of the display module 10 that faces the user as a whole is the first surface 101. The first surface 101 can be a flat surface or an uneven surface. For example, the display module 10 includes a liquid crystal display panel 11 and a backlight source, and can also include a front frame 13. The surface of the display panel 11 away from the backlight source includes a display area and a non-display area. The front frame 13 includes a shielding portion 132, and the shielding portion 132 covers the non-display area. In this case, the first surface 101 includes: the portion of the surface of the display panel 11 away from the backlight source that is located in the display area (i.e., the display surface), and the surface of the shielding portion 132 away from the display panel 11.

[0068] At least one side frame 20 includes a first side wall 201 and a support column 204 arranged on the first side wall 201 and a plurality of heat dissipation protrusions 205 spaced apart from each other. The first side wall 201 is arranged opposite to the side 103 of the display module 10. The support column 204 and the plurality of heat dissipation protrusions 205 are arranged on the side of the first side wall 201 facing the display module 10. The support column 204 contacts the side of the display module 10, and the height of the support column 204 is greater than the height of the heat dissipation protrusion 205, so that a gap is formed between the display module 10 and the heat dissipation protrusion 205.

[0069] The display module 10 is used as a heat source. When the display module 10 is in a normal working state or a full load working state, the power is fixed, that is, the heat source temperature (denoted as T 内 ) is fixed, and the surface temperature of the product's external structure that the user touches during use (denoted as T 外 ) is the temperature value that users can accept after product design. Among them, the thermal resistance during heat dissipation can be calculated by the following two formulas:

[0070] Thermal resistance = (T 内 -T 外 ) / P (Unit: °C / W) (Formula 1)

[0071] Thermal resistance = L / (K×S) (Unit: K / W or °C / W) (Formula 2)

[0072] Among them, K is the thermal conductivity, which is determined by the material's own characteristics; L is the material thickness, which is proportional to the thermal resistance. The greater the thickness, the greater the thermal resistance and the worse the thermal conductivity; S is the material area, which is inversely proportional to the thermal resistance. The larger the area, the smaller the thermal resistance and the better the thermal conductivity.

[0073] In the embodiment of the present disclosure, the display module 10 serves as an integral heat source, the side frame 20 is in contact with the display module 10, and a heat dissipation protrusion 205 is provided on the inner side of the first side wall 201 of at least one side frame 20. The provision of the heat dissipation protrusion 205 can effectively increase the heat exchange area between the side frame 20 and the air inside the display device, thereby increasing the heat exchange efficiency between the side frame 20 and the air. In addition, since there can also be a support column 204 on the first side wall 201, the height of the support column 204 is greater than the height of the heat dissipation protrusion 205, so that an air interlayer can be formed between the heat dissipation protrusion 205 and the display module 10, thereby increasing the thermal resistance between the heat source and the side frame 20, reducing the heat transfer efficiency between the heat source and the side frame 20, and further reducing the temperature of the outer surface of the side frame 20, preventing the user from touching the high-temperature surface.

[0074] Considering that when the height difference D between the support column 204 and the heat dissipation protrusion 205 is too small, due to the processing dimensional tolerance of the product, it may lead to the failure to generate an air interlayer, and the air interlayer heat insulation effect cannot be achieved; and when the height difference D between the support column 204 and the heat dissipation protrusion 205 is too large, the frame width of the display device increases, affecting the appearance of the display product. Therefore, in the embodiment of the present disclosure, the height difference D between the support column 204 and the heat dissipation protrusion 205 is set to 0.05 to 0.15 times the height H1 of the heat dissipation protrusion 205, so as to achieve a good heat insulation effect while preventing the frame of the display device from being too large. For example, D is 0.05 times, 0.07 times, 0.09 times, 0.11 times, or 0.15 times H1.

[0075] In one example, the height difference D between the support column 204 and the heat dissipation protrusion 205 is set between 0.5 and 1 mm, for example, D is 0.5 mm, or 0.6 mm, or 0.7 mm, or 0.8 mm, or 1 mm.

[0076] In some embodiments, the thickness C of the first side wall 201 is 0.15 to 0.45 times the height H1 of the heat dissipation protrusion 205 , thereby ensuring that the first side wall 201 has sufficient strength.

[0077] In one example, the thickness C of the first side wall 201 is between 1.5 and 3 mm, so as to ensure that the first side wall 201 has sufficient strength. For example, C is 1.5 mm, or 2.0 mm, or 2.5 mm, or 3 mm.

[0078] In some embodiments, Figure 6 As shown, at least one side frame 20 further includes a second side wall 202 connected to the first side wall 201, and at least a portion of the second side wall 202 is located on a side of the display module 10 away from the second surface 102. A groove 202v is provided on a side of the second side wall 202 facing the first surface 101, so that an air layer can also be formed between the second side wall 202 and the display module 10, thereby further reducing the temperature of the outer surface of the side frame 20.

[0079] When the depth E of the groove 202v is too small, due to the processing dimensional tolerance of the product, it may result in the failure to generate an air interlayer, and the air interlayer heat insulation effect cannot be achieved; and when the depth E of the groove 202v is too large, the thickness of the second side wall 202 increases, thereby affecting the appearance of the display device. Therefore, in the embodiment of the present disclosure, the depth E of the groove 202v is set to 0.15 to 0.5 times the thickness of the second side wall 202. For example, the depth E of the groove 202v is 0.15 times, 0.25 times, 0.3 times, or 0.5 times the thickness of the second side wall 202.

[0080] In some examples, the depth E of the groove 202v is set between 0.5 and 1.0 mm, so as to ensure that an air layer is formed between the second side wall 202 and the display module 10 without affecting the appearance of the display device. For example, E is 0.5 mm, or 0.6 mm, or 0.7 mm, or 0.8 mm, or 0.9 mm, or 1.0 mm.

[0081] In some embodiments, the depth E of the groove 202v can be similar to or the same as the above-mentioned height difference D, so that the thickness of the air layer formed between the first side edge 202 and the display module 10 can be roughly equal to the thickness of the air layer formed between the heat dissipation protrusion 205 and the display module 10, thereby making the temperature distribution of the first side wall 201 and the second side wall 202 more uniform.

[0082] In some embodiments, Figure 6 As shown, the second side wall 202 includes a first edge away from the first side wall 201 and extending along the length direction of the side frame 20, and the distance F between the first edge and the groove 202v is 0.1 to 0.5 times the width of the second side wall 202, so as to ensure that the user will not see the internal structure of the display device when watching at a close distance and a large viewing angle (for example, close to the side of the display device). For example, F is 0.1 times, 0.3 times, or 0.5 times the width of the second side wall 202.

[0083] In some embodiments, the distance F between the first edge and the groove 202v is between 0.5 and 1.0 mm, so as to ensure that the user cannot see the internal structure of the display device when viewing at a close distance and a wide viewing angle. For example, F is 0.5 mm, or 0.6 mm, or 0.8 mm, or 1.0 mm.

[0084] In some embodiments, Figure 6 As shown, the distance G between the bottom surface of the groove 202v facing the first surface 101 and the surface of the second side wall 202 away from the first surface 101 is greater than the depth of the groove 202v, thereby ensuring that the second side wall 202 still has sufficient strength after the groove 202v is formed.

[0085] It should be noted that the thickness of the second side wall 202 refers to the maximum thickness of the second side wall 202 where the groove 202v is not formed, that is, the thickness of the second side wall 202 is equal to the sum of the above G and the depth of the groove 202v.

[0086] In some embodiments, G is between 1.0 and 3.0 mm, so as to ensure that the second side wall 202 has sufficient strength after the groove 202v is formed on the surface of the second side wall 202, and does not cause the second side wall 202 to be too thick to affect the product appearance. For example, G is 1.0 mm, or 1.5 mm, or 2.0 mm, or 2.5 mm, or 3.0 mm.

[0087] Figures 7 to 12 Six distribution diagrams of heat dissipation protrusions provided in some embodiments of the present disclosure, such as Figures 7 to 12 As shown, the plurality of heat dissipation protrusions 205 include at least one of: a plurality of first heat dissipation fins 205a, a plurality of second heat dissipation fins 205b, and a plurality of heat dissipation columns 205c. Figure 7 As shown, the plurality of heat dissipation protrusions 205 include a plurality of first heat dissipation fins 205a, and the plurality of first heat dissipation fins 205a are arranged along the thickness direction of the display module 10 (ie, Figure 4 , Figures 7 to 11 The first heat dissipation fins 205a are arranged in the x direction of the first side wall 201, and each first heat dissipation fin 205a extends along the length direction of the first side wall 201.

[0088] For example, Figure 8 As shown, the plurality of heat dissipation protrusions 205 include a plurality of second heat dissipation fins 205 b , which are arranged along the length direction of the first side wall 201 , and each second heat dissipation fin 205 b extends along the thickness direction of the display module 10 .

[0089] For example, Fig. 9As shown, the plurality of heat dissipation protrusions 205 include a plurality of heat dissipation columns 205c, and the plurality of heat dissipation columns 205c are arranged in an array. The orthographic projection of the heat dissipation columns 205c on the first side wall 201 may be a rectangle, a circle, an ellipse, a triangle, etc., which is not specifically limited here.

[0090] For example, Fig.11 As shown, the plurality of heat dissipation protrusions 205 include a plurality of the first heat dissipation fins 205a and a plurality of the second heat dissipation fins 205b. For example, Fig.10 As shown, the plurality of heat dissipation protrusions 205 include a plurality of the first heat dissipation fins 205a and a plurality of heat dissipation columns 205c. Fig.12 As shown, the plurality of heat dissipation protrusions 205 may include the second heat dissipation fins 205b and a plurality of heat dissipation columns 205c. For another example, the plurality of heat dissipation protrusions 205 may include a plurality of first heat dissipation fins 205a, a plurality of second heat dissipation fins 205b and a plurality of heat dissipation columns 205c.

[0091] When the plurality of heat dissipation protrusions 205 include a plurality of first heat dissipation fins 205a, the thickness A of the first heat dissipation fin 205a may be 0.2 to 0.5 times of its own height, thereby increasing the contact surface between the first heat dissipation fin 205a and the air, and preventing the first heat dissipation fin 205a from being too thin and causing breakage. For example, the thickness A of the first heat dissipation fin 205a is 0.2 to 0.3 times, or 0.3 to 0.4 times, or 0.4 to 0.5 times of its own height.

[0092] In some embodiments, the thickness A of the first heat dissipating fin 205 a is between 1.5 and 3 mm, for example, A is 1.0 mm, or 1.5 mm, or 2.0 mm, or 2.5 mm, or 3.0 mm.

[0093] In addition, the distance B between two adjacent first heat sink fins 205a is 0.5 to 1.25 times the thickness A of the first heat sink fin 205a, thereby ensuring that sufficient air flow space is formed between adjacent first heat sink fins 205a, so that the heat of the first heat sink fins 205a can be fully exchanged with the air. For example, B is 0.5 to 0.8 times, or 0.8 to 1 times, or 1 to 1.25 times of A.

[0094] In some embodiments, the distance B between two adjacent first heat dissipation fins 205a is greater than the height difference D between the support column 204 and the heat dissipation protrusion 205, so that the air flow channel between the first heat dissipation fins 205a can be fully connected with the air layer between the support column 204 and the display module, reducing the impact of the heat source temperature on the temperature of the outer surface of the frame.

[0095] In some embodiments, the distance B between two adjacent first heat dissipation fins 205 a is between 1.5 and 2.5 mm, for example, B is 1.5 mm, or 1.8 mm, or 2.0 mm, or 2.5 mm.

[0096] When the plurality of heat dissipation protrusions 205 include a plurality of second heat dissipation fins 205b, the thickness U of the second heat dissipation fin 205b is less than its own height, for example, U is 0.2 to 0.5 times of its own height, thereby increasing the contact surface between the second heat dissipation fin 205b and the air, and preventing the second heat dissipation fin 205b from being too thin and causing breakage. For example, the thickness U of the second heat dissipation fin 205b is 0.2 to 0.3 times, or 0.3 to 0.4 times, or 0.4 to 0.5 times of its own height.

[0097] In some embodiments, the thickness U of the second heat dissipating fin 205 b is between 1.5 and 3 mm, for example, U is 1.0 mm, or 1.5 mm, or 2.0 mm, or 2.5 mm, or 3.0 mm.

[0098] In addition, the length V of the second heat dissipating fin 205 b may be between 20 mm and 24 mm, such as 20 mm, 22 mm, or 24 mm.

[0099] In addition, the distance W between two adjacent second heat dissipation fins 205b is greater than the height difference D between the support column 204 and the heat dissipation protrusion 205, so that the air flow channel between the second heat dissipation fins 205b can be fully connected with the air layer between the support column 204 and the display module, reducing the impact of the heat source temperature on the temperature of the outer surface of the frame.

[0100] In some embodiments, the distance W between two adjacent second heat dissipation fins 205 b is between 1.5 and 2.5 mm, for example, W is 1.5 mm, or 1.8 mm, or 2.0 mm, or 2.5 mm.

[0101] When the plurality of heat dissipation protrusions 205 include a plurality of heat dissipation columns 205c, the dimension Q of the heat dissipation column 205c in the thickness direction of the display module 10 and the dimension R in the length direction of the first side wall 201 are both 0.2 to 0.5 times of their own height, thereby increasing the contact surface between the heat dissipation column 205c and the air, and preventing the heat dissipation column 205c from being broken due to a small cross-sectional area. For example, Q and R are both 0.2 to 0.3 times, or 0.3 to 0.4 times, or 0.4 to 0.5 times of the height of the heat dissipation column 205c.

[0102] In some embodiments, Q and R are both between 1.5 and 3 mm, for example, R and Q are both 1.0 mm, or 1.5 mm, or 2.0 mm, or 2.5 mm, or 3.0 mm.

[0103] In addition, the distance P between two adjacent heat dissipation columns 205c in the same row and the distance O between two adjacent heat dissipation columns 205c in the same column are both greater than the height difference D between the support column 204 and the heat dissipation protrusion 205, so that the air flow channel between the second heat dissipation fins 205b can be fully connected with the air layer between the support column 204 and the display module, reducing the impact of the heat source temperature on the temperature of the outer surface of the frame.

[0104] In some embodiments, the distance P between two adjacent heat dissipation columns 205c in the same row and the distance O between two adjacent heat dissipation columns 205c in the same column may be equal, thereby improving the uniformity of the temperature distribution on the outer surface of the frame.

[0105] In some embodiments, the distance P between two adjacent heat dissipation columns 205c in the same row and the distance O between two adjacent heat dissipation columns 205c in the same column are both between 1.5 and 2.5 mm, thereby ensuring that sufficient air flow channel space is formed between the plurality of heat dissipation columns 205c, so that the heat of the heat dissipation columns 205c can be fully exchanged with the air. For example, O is 1.5 mm, or 1.8 mm, or 2.0 mm, or 2.5 mm.

[0106] In some embodiments, Figures 7 to 12 , as shown, a spacing area is formed between the support column 204 and the heat dissipation protrusion 205, so that an air layer is formed around the heat dissipation protrusion 205, further reducing the heat transfer efficiency between the heat source and the side frame 20. In some embodiments, as Figure 7 , Fig. 9 and Fig.14A As shown, when the plurality of heat dissipation protrusions 205 adjacent to the support column 204 are heat dissipation columns 205c or first heat dissipation fins 205a, the spacing area between the support column 204 and the heat dissipation protrusions 205 may be an annular structure, which may be substantially a circular ring.

[0107] The heat dissipation effects of the first heat dissipation fin 205a, the second heat dissipation fin 205b and the heat dissipation column 205c are compared below.

[0108] Under the condition that the above parameter settings are met, 4 first heat sink fins 205a can be set within every 100mm length range, the height of the first heat sink fin 205a is 7.2mm, the length is 100mm, and each first heat sink fin 205a has two sides in contact with the air. Then, within every 100mm length range, the total area of ​​the first heat sink fin 205a in contact with the air is: 7.2mm*100mm*4*2=5760mm 2136 heat dissipation columns 205c can be arranged within a length range of 100mm. The dimension R of the heat dissipation column 205c in the length direction of the first side wall 201 is 1.5mm, and the dimension Q in the thickness direction of the display module 10 is 2.5mm. Therefore, within a length range of 100mm, the total contact area between the heat dissipation column 205c and the air is: [7.2mm*1.5mm+7.2mm*2.5]*136*2=7833.6mm 2 . Within every 100mm length range, 34 second heat sink fins 205b can be set, the height of the second heat sink fins 205b is 7.2mm, and the size of the second heat sink fins 205b in the thickness direction of the display module 10 (i.e., the length of the second heat sink fins 205b) is 22mm. Then, within every 100mm length range, the total area of ​​the second heat sink fins 205b in contact with the air is: 7.2mm*22mm*34*2=10771.2mm 2 It can be seen that, compared with providing a plurality of first heat dissipation fins 205a, providing a plurality of heat dissipation columns 205c and / or a plurality of second heat dissipation fins 205b can further increase the heat dissipation area and improve the heat exchange efficiency between the side frame 20 and the air.

[0109] In some embodiments, Figure 2 and Figure 3 As shown, the plurality of side frames 20 include at least one first side frame 21 and at least one second side frame 22, the first side frame 21 and the second side frame 22 are located on two adjacent sides of the display module 10, and the two are detachably connected. The first side frame 21 and the second side frame 22 both include a first side wall 201, a support column 204, and a heat dissipation protrusion 205.

[0110] In one example, if Figure 2 and Figure 3 As shown, the multiple side frames 20 include a first side frame 21 and two second side frames 22. When the display device is in an upright state, the side frame 20 located on the top side of the display module 10 is the first side frame 21, and the side frames 20 located on the left and right sides of the display module 10 are both second side frames 22.

[0111] Fig.14A is a plan view of a first side frame provided in some embodiments of the present disclosure, Fig. 14B for Fig.14A A partial enlarged view of the middle Q1 area. Fig.15 for Fig.14A A stereogram of the middle Q1 region, Fig.16 is a three-dimensional diagram of a second side frame provided in some embodiments of the present disclosure, Fig.17 is a partial stereoscopic view of a second side frame provided in some embodiments of the present disclosure, Fig.18A cross-sectional view of a connection position between a first side frame and a second side frame provided in some embodiments of the present disclosure.

[0112] like FIG. 14A to FIG. 18 As shown, in some embodiments, the first side frame 21 and the second side frame 22 both include the first side wall 201 and the second side wall 202, wherein the second side wall 202 of the first side frame 21 is provided with a first matching portion 20a at the end close to the second side frame 22, and the second side wall 202 of the second side frame 22 includes a second matching portion 20b, and the second matching portion 20b cooperates with the first matching portion 20a to form a first position-limiting structure. The first side frame 21 also includes a third matching portion 20c, which is arranged opposite to the second side wall 202 of the first side frame 21 and connected to the first side wall 201 of the first side frame 21; the second side frame 22 also includes a fourth matching portion 20d, which is arranged opposite to the second side wall 202 of the second side frame 22 and connected to the first side wall 201 of the second side frame 22; the third matching portion 20c cooperates with the fourth matching portion 20d to form a second position-limiting structure.

[0113] The first limiting structure and the second limiting structure can limit the positions of the first side frame 21 and the second side frame 22 to prevent the two from moving relative to each other.

[0114] In the embodiment of the present disclosure, the specific structures of the first limiting structure and the second limiting structure are not limited, as long as they can limit the first side frame 21 and the second side frame 22. As a specific implementation of the present disclosure, the first limiting structure and the second limiting structure both adopt a mortise and tenon structure, thereby reducing the joint seam between the first side frame 21 and the second side frame 22.

[0115] Specifically, the first matching portion 20a includes a first tongue-and-groove located on the second side wall 202 of the first side frame 21, wherein the second matching portion 20b may specifically be a portion of the second side wall 202 of the second side frame 22 close to the first side frame 21, and the second matching portion 20b is inserted into the first tongue-and-groove of the first side frame 21. In some embodiments, the first tongue-and-groove includes a first bottom surface facing the third matching portion 20c and a first side surface 20s connected to the first bottom surface; the second matching portion 20b includes a second side surface that fits the first side surface 20s, and both the first side surface 20s and the second side surface are inclined surfaces. The inclined surface of the second matching portion 20b is butted against the inclined surface of the first tongue-and-groove, so that the collision between the second matching portion 20b and the first side frame 21 can be buffered.

[0116] Considering that when the depth H of the first tongue-and-groove is too small, it cannot play an effective limiting role; when the depth of the first tongue-and-groove is too large, it will affect the strength of the second side wall 202 of the first side frame 21; therefore, in some embodiments, such as Fig. 14BAs shown, the depth H of the first tongue-and-groove is set between 1.5 and 2.5 mm, so as to effectively limit the second side frame 22 while ensuring the strength of the second side wall 202 of the first side frame 21. For example, the depth H of the first tongue-and-groove is 1.5 mm, or 1.8 mm, or 2.0 mm, or 2.2 mm, or 2.5 mm.

[0117] In some embodiments, a dimension J of the first tongue and groove in the length direction of the first side frame 21 may be consistent with a width of a side wall of the second side frame 22 , for example, J is between 20 and 30 mm.

[0118] In some embodiments, the dimension K of the first side surface 20s in the length direction of the first side frame 21 is between 1 and 2 mm, and the angle between the first side surface 20s and the first bottom surface is between 120° and 150°. For example, the angle between the first side surface and the first bottom surface is 120°, or 130°, or 145°, or 150°.

[0119] In some embodiments, the third mating portion 20c and the fourth mating portion 20d can be interlocking structures. For example, the third mating portion 20c is provided with a second tenon groove on the side of the second side wall 202 facing the first side frame 21, and the fourth mating portion 20d is provided with a third tenon groove on the side of the second side wall 202 away from the second side frame 22. The third mating portion 20c is inserted into the third tenon groove, and the fourth mating portion 20d is inserted into the second tenon groove.

[0120] The depth I of the second tongue and groove may be between 1.5 and 2.5 mm, thereby ensuring the strength of the first side frame 21 and effectively limiting the second side frame 22. For example, the depth I of the second tongue and groove is 1.5 mm, or 1.8 mm, or 2.0 mm, or 2.2 mm, or 2.5 mm.

[0121] The dimension J′ of the second tongue and groove in the length direction of the first side frame 21 may be consistent with J, and the depth of the third tongue and groove may be consistent with the depth of the second tongue and groove.

[0122] In some embodiments, the third matching portion 20c is provided with a first mounting hole V1, and the fourth matching portion 20d is provided with a second mounting hole V2 opposite to the first mounting hole V1; the display device further comprises a first fastener, which passes through the first mounting hole V1 and the second mounting hole V2, and is used to detachably connect the first side frame 21 and the second side frame 22. For example, the first fastener may be a bolt, and the first mounting hole V1 and the second mounting hole V2 may both be threaded holes.

[0123] In some embodiments, Figure 1 and Figure 4 As shown, the display device further includes a rear case 30 . Fig.13Schematic diagram of a rear shell provided in some embodiments of the present disclosure, such as Figure 4 and Fig.13 As shown, the rear shell 30 includes a shell bottom wall 31 and a shell side wall 32 connected to the shell bottom wall 31 . The shell bottom wall 31 and the shell side wall 32 define a receiving space. The shell bottom wall 31 is located on a side of the receiving space away from the display module 10 .

[0124] Among them, Figure 4 As shown, at least one side frame 20 further includes a mounting wall 203 , which is fixedly connected to the first side wall 201 and is located in the accommodating space, and the mounting wall 203 is connected to the shell side wall 32 .

[0125] In some embodiments, the mounting wall 203 and the first side wall 201 may be connected as an integral structure.

[0126] In some embodiments, Figure 4 , Figure 7 As shown, a third mounting hole V3 is provided on the mounting wall 203, and a fourth mounting hole is provided on the housing side wall 32; the display device further includes a second fastener 41, which passes through the fourth mounting hole and extends into the third mounting hole V3, and is used to detachably connect the mounting wall 203 to the housing side wall 32. For example, the second fastener 41 is a screw, and the third mounting hole V3 and the fourth mounting hole are both threaded holes. The housing side wall 32 includes an inner recess 32a, and the fourth mounting hole is located on the inner recess 32a.

[0127] By forming an inner recess 32a on the shell side wall 32, point contact can be formed between the shell side wall 32 and the installation wall 203, thereby reducing the temperature of the outer surface of the shell side wall 32. In addition, the setting of the inner recess 32a can provide a hidden space for the screw cap, thereby improving the appearance of the display device.

[0128] Among them, the inner recess 32a can be formed by stamping, the stamping depth can be between 1.0 and 2.5 mm, and the stamping width can be determined according to the diameter of the screw cap. For example, if the diameter of the screw cap is between 7 mm and 20 mm, the stamping width can be between 15 and 30 mm, thereby ensuring that the screw cap can be hidden.

[0129] In some embodiments, Fig.13 As shown, heat dissipation holes 300 may be provided on the bottom wall 31 and the side wall 32 of the housing to dissipate heat generated by the display device.

[0130] Fig.19 is a schematic diagram of a support column and a first side wall provided in some embodiments of the present disclosure, Fig. 20 Another schematic diagram of the support column and the first side wall provided in some embodiments of the present disclosure is shown in FIG. Fig.19As shown, in some embodiments, the support column 204 and the first side wall 201 can be connected as an integral structure.

[0131] Among them, the support column 204 and the first side wall 201 are both conductors, so that during the electrostatic test of the display device, the static charge on the display module 10 can be quickly transferred to the side frame 20 and then released to prevent static electricity from being introduced into the circuit components inside the display module 10 and causing poor display.

[0132] In other embodiments, Fig. 20 As shown, a portion of the support column 204 is embedded in the first side wall 201. Specifically, the support column 204 is a conductor and includes a support body 204a and an embedded portion 204b connected to the support body 204a. The support body 204a is located on the side of the embedded portion 204b facing the display module 10, and the orthographic projection of the embedded portion 204b on the side of the display module 10 covers and exceeds the orthographic projection of the support body 204a on the side of the display module 10; the embedded portion 204b is embedded in the first side wall 201.

[0133] The support column 204 and the first side wall 201 are both conductors, so that during the electrostatic test of the display device, the static charge on the display module 10 can be quickly transferred to the side frame 20. In addition, since a portion of the support column 204 is embedded in the first side wall 201, even if the side frame 20 is coated with an insulating layer such as an anti-oxidation layer, the support column 204 can transfer the static electricity contacted by the display module 10 to the side frame 20.

[0134] The embedding depth S of the embedding portion 204b in the first side wall 201 is between 1.5 and 2.5 mm, thereby improving the tensile strength of the support column 204 and preventing the support column 204 from falling off during use of the display device; at the same time, preventing marks from being left on the outer surface of the side frame 20. For example, S is 1.5 mm, or 1.7 mm, or 2.0 mm, or 2.2 mm, or 2.5 mm.

[0135] In some embodiments, an embedding groove 204v is provided on the first side wall 201, and the embedding portion 204b is embedded into the first side wall 201 through the side wall of the embedding groove 204v, wherein the cross-sectional area of ​​the embedding portion 204b is greater than the cross-sectional area of ​​the embedding groove 204v. The cross-sectional area here refers to the area of ​​the cross section in the direction perpendicular to the thickness of the first side wall 201.

[0136] The width T of the embedded portion 204b embedded in the first side wall 201 is between 1.0 and 2.0 mm, thereby improving the tensile strength of the support column 204 and preventing the support column 204 from falling off during the use of the display device, while reducing the embedding difficulty of the embedded portion 204b and avoiding material waste. For example, T is 1.0 mm, or 1.3 mm, or 1.5 mm, or 1.8 mm, or 2.0 mm.

[0137] In some embodiments, Figure 7 , Fig.19 , Fig. 20 As shown, a fifth mounting hole V5 is provided in the support column 204 , and the display device further includes a fifth fastener 206 , which passes through the fifth mounting hole V5 and is connected to the display module 10 .

[0138] For example, the fifth fastener 206 is a screw, and a threaded hole corresponding to the fifth mounting hole V5 is provided on the display module 10 . The fifth fastener 206 passes through the fifth mounting hole V5 and is screwed into the threaded hole on the display module 10 .

[0139] like Figure 5 As shown, the display module 10 may include: a display panel 11, a backlight source, a middle frame 16 and a front frame 13, wherein the display panel 11 is stacked on the light-emitting side of the backlight source, the backlight source may include a back plate 12 and an optical film group 15, the back plate 12 includes a back plate side wall 122 and a back plate bottom wall 121, the back plate bottom wall 121 and the back plate side wall 122 are connected to define a receiving space; at least a portion of the optical film group 15 is located in the receiving space. The middle frame 16 includes a baffle portion 161 and a bearing portion 162 connected to the baffle portion 161, and the edge of the display panel 11 is arranged on the bearing portion 162. The front frame 13 includes a front frame side wall 131 and a shielding portion 132 connected to the front frame side wall 131, and the shielding portion 132 covers the baffle portion 161 and the non-display area of ​​the display panel 11. The fifth fastener 206 may be connected to the front frame 13 of the display module 10.

[0140] In some embodiments, Figure 2 and Figure 3 As shown, the multiple side frames 20 around the display module 10 also include a third side frame 23. The third side frame 23 and the first side frame 21 are located on opposite sides of the display module 10, and both ends of the third side frame 23 are detachably connected to the two second side frames 22 respectively. Fig.21 This is a three-dimensional diagram of a second side frame close to a third side frame provided in some embodiments of the present disclosure. Fig. 22 is a schematic diagram of a third side frame provided in some embodiments of the present disclosure, such as Fig. 22As shown, the structure of the third side frame 23 may be different from that of the first side frame 21 and the second side frame 22. The third side frame 23 includes: a third side wall 231, a fourth side wall 232, a fifth side wall 233 and a sixth side wall 234. The third side wall 231 is arranged opposite to the side of the display module 10 and is connected to the display module 10 through a fastener. For example, a sixth mounting hole is arranged on the third side wall 231, and the fastener passes through the sixth mounting hole to connect to the display module 10. When the display device is in an upright state, the third side wall 231 can support the display module 10.

[0141] The fourth side wall 232 is connected to the third side wall 231, and at least a portion of the fourth side wall 232 is disposed opposite to the first surface 101 of the display module 10. The fourth side wall 232 may include a fifth matching portion 20e. Fig.21 As shown, the second side wall 202 of the second side frame 22 includes a sixth matching portion 20f, and the sixth matching portion 20f matches with the fifth matching portion 20e to form a third limiting structure. Among them, the fifth matching portion 20e can be a third tongue and groove formed on the fourth side wall 232, and the sixth matching portion 20f can be a portion of the second side wall 202 of the second side frame 22 close to the fourth side wall 232, and the sixth matching portion 20f is inserted into the third tongue and groove. Of course, mounting holes can also be provided on the fourth side wall 232 and the sixth matching portion 20f, so that the fastener passes through the mounting holes on the fourth side wall 232 and the sixth matching portion 20f to connect the second side frame 22 with the third side frame 23.

[0142] The fifth side wall 233 is connected to the third side wall 231, and the orthographic projection of the fifth side wall 233 on the housing bottom wall 31 of the rear housing 30 may not overlap with the orthographic projection of the display module 10 on the housing bottom wall 31. A keypad may be provided on one side of the fifth side wall 233 close to the rear housing bottom wall 31, and a window 233v may be provided on the fifth side wall 233, so that the keys and indicator lights on the keypad and other structures may be exposed.

[0143] The sixth side wall 234 is connected to the third side wall 231 and to the shell side wall 32 of the rear shell 30. For example, a seventh mounting hole may be provided on the sixth side wall 234, and an eighth mounting hole may be provided on the shell side wall 32, so that a fastener may be used to pass through the seventh mounting hole and the eighth mounting hole to connect the shell side wall 32 to the sixth side wall 234. In particular, an inner recess 32a may also be formed at a position on the shell side wall 32 corresponding to the eighth mounting hole, so that the fastener may be hidden.

[0144] like Fig.21 As shown, the length of the second side wall 202 of the second side frame 22 is smaller than that of the first side wall 201 , so that the second side frame 22 forms an avoidance gap V0 at a position close to the third side frame 23 to avoid the fifth side wall 233 .

[0145] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A display device, comprising: A display module, the display module comprising a first surface and a second surface arranged opposite to each other, and a side surface connected between the first surface and the second surface, wherein at least a portion of the first surface is a display surface; There are multiple side frames located around the display module, at least one of which includes a first side wall, a support column arranged on the first side wall, and a plurality of heat dissipation protrusions spaced from each other, the first side wall is arranged opposite to the side of the display module, the support column and the plurality of heat dissipation protrusions are arranged on the side of the first side wall facing the display module, the support column is in contact with the side of the display module, and the height of the support column is greater than the height of the heat dissipation protrusion, so that a gap is formed between the display module and the heat dissipation protrusion.

2. The display device according to claim 1, wherein: The height difference between the support column and the heat dissipation protrusion is between 0.5 and 1 mm.

3. The display device according to claim 1, wherein: The thickness of the first side wall is between 1.5 and 3 mm.

4. The display device according to claim 1, wherein: At least one of the side frames further comprises a second side wall connected to the first side wall, and at least a portion of the second side wall is located on a side of the display module away from the second surface; A groove is provided on a side of the second side wall facing the first surface.

5. The display device according to claim 4, wherein: The depth of the groove is between 0.5 and 1.0 mm.

6. The display device according to claim 4, wherein: The second side wall comprises a first edge which is away from the first side wall and extends along the length direction of the side frame, and the distance between the first edge and the groove is between 0.5 and 1.0 mm.

7. The display device according to claim 4, wherein: A distance between a bottom surface of the groove facing the first surface and a surface of the second side wall away from the first surface is between 1.0 and 3.0 mm.

8. The display device according to any one of claims 1 to 7, wherein: The plurality of heat dissipation protrusions include at least one of: a plurality of first heat dissipation fins, a plurality of second heat dissipation fins, and a plurality of heat dissipation columns; Wherein, the plurality of first heat dissipation fins are arranged along the thickness direction of the display module, and each of the first heat dissipation fins extends along the length direction of the first side wall; The plurality of second heat dissipation fins are arranged along the length direction of the first side wall, and each of the second heat dissipation fins extends along the thickness direction of the display module; The plurality of heat dissipation columns are arranged in an array.

9. The display device according to claim 8, wherein: The heat dissipation protrusion includes a plurality of first heat dissipation fins, the thickness of the first heat dissipation fins is between 1.5 and 3 mm, and the distance between two adjacent first heat dissipation fins is between 1.5 and 2.5 mm.

10. The display device according to claim 8, wherein: The plurality of heat dissipation protrusions include a plurality of second heat dissipation fins, the thickness of the second heat dissipation fins is between 1.5 and 3 mm, and the distance between two adjacent second heat dissipation fins is between 1.5 and 2.5 mm.

11. The display device according to claim 8, wherein: The multiple heat dissipation protrusions include multiple heat dissipation columns, and the dimensions of the heat dissipation columns in the thickness direction of the display module and in the length direction of the first side wall are both between 1.5 and 3 mm. The distance between two adjacent heat dissipation columns in the same row and between two adjacent heat dissipation columns in the same column is both between 1.5 and 2.5 mm.

12. The display device according to any one of claims 1 to 7, wherein: The plurality of side frames include at least one first side frame and at least one second side frame, the first side frame and the second side frame are located on two adjacent sides of the display module, and the two are detachably connected; The first side frame and the second side frame both include the first side wall, the support column and the heat dissipation protrusion.

13. The display device according to claim 12, wherein: The first side frame and the second side frame both include a second side wall, the second side wall is connected to the first side wall and is at least partially located on a side of the display module away from the second surface; A first matching portion is provided at an end of the second side wall of the first side frame close to the second side frame, and the second side wall of the second side frame includes a second matching portion, and the second matching portion cooperates with the first matching portion to form a first limiting structure; The first side frame also includes a third matching portion, which is arranged opposite to the second side wall of the first side frame and connected to the first side wall of the first side frame; the second side frame also includes a fourth matching portion, which is arranged opposite to the second side wall of the second side frame and connected to the first side wall of the second side frame; the third matching portion and the fourth matching portion cooperate with each other to form a second limiting structure.

14. The display device according to claim 13, wherein: The first mating portion includes a mortise and tenon groove on the first side frame, the mortise and tenon groove includes a first bottom surface facing the third mating portion and a first side surface connected to the first bottom surface; the second mating portion includes a second side surface in contact with the first side surface, and the first side surface and the second side surface are both inclined surfaces.

15. The display device according to claim 13, wherein: The third mating portion is provided with a first mounting hole, and the fourth mating portion is provided with a second mounting hole opposite to the first mounting hole; the display device also includes a first fastener, which passes through the first mounting hole and the second mounting hole and is used to detachably connect the first side frame and the second side frame.

16. The display device according to any one of claims 1 to 7, wherein: The display device further includes a rear shell, the rear shell including a shell bottom wall and a shell side wall connected to the shell bottom wall, the shell bottom wall and the shell side wall define a receiving space, and the shell bottom wall is located on a side of the receiving space away from the display module; The side frame further includes a mounting wall, which is fixedly connected to the first side wall and is located in the accommodating space, and is connected to the shell side wall.

17. The display device according to claim 16, wherein: The mounting wall is provided with a third mounting hole, and the side wall of the housing is provided with a fourth mounting hole; the display device further comprises a second fastener, the second fastener passes through the fourth mounting hole and extends into the third mounting hole, and is used for detachably connecting the mounting wall to the side wall of the housing; The shell side wall comprises an inner recess, and the fourth mounting hole is located on the inner recess.

18. The display device according to any one of claims 1 to 7, wherein: The support column and the first side wall are connected to form an integral structure.

19. The display device according to any one of claims 1 to 7, wherein: The support column is a conductor, and the support column includes a support body and an embedded part connected to the support body, the support body is located on the side of the embedded part facing the display module, the orthographic projection of the embedded part on the side of the display module covers and exceeds the orthographic projection of the support body on the side of the display module; the embedded part is embedded in the first side wall.

20. The display device according to claim 19, wherein: The embedding depth of the embedding portion in the first side wall is between 1.5 and 2.5 mm.

21. The display device according to claim 19, wherein: The first side wall is provided with an embedding groove, the embedding portion is embedded into the first side wall through the side wall of the embedding groove, and the width of the embedding portion embedded into the first side wall is between 1.0 and 2.0 mm.

22. The display device according to any one of claims 1 to 7, wherein: A fifth mounting hole is provided in the support column, and the display device further comprises a fifth fastener, which passes through the fifth mounting hole and is connected to the display module.

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