Display module and display device

Abstract

The utility model discloses a display module and a display device. The display module comprises a shell, a light guide plate and a backlight source, and a containing cavity is formed in the shell; the light guide plate is arranged in the accommodating cavity, and one side surface of the light guide plate is a light incident surface; the backlight source is arranged in the containing cavity and located on one side of the light inlet face. Wherein the inner wall of the containing cavity is provided with a protruding part, and the protruding part is used for limiting the backlight source in the thickness direction of the display module. According to the invention, the risk of poor fireflies can be reduced while the light and thin design of the display module is realized.

Description

Technical Field

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

[0002] In related technologies, the display module includes a backlight module and a display panel. Typically, a U-fold structure is set at the back panel of the backlight module. The U-fold structure is used to press down the backlight source to prevent it from floating up after heating up, which would result in a poor glowing effect.

[0003] However, in order to achieve a thinner and lighter design for the display module, the backplate inside the backlight module needs to be removed. After the backplate is removed, the U-fold structure is also removed, which means that the backlight source inside the backlight module cannot be suppressed. When the backlight source heats up, it will float up, increasing the risk of firefly defects.

[0004] Therefore, it is necessary to propose a new technical solution to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this application is to provide a display module and display device to achieve a thinner and lighter design of the display module while reducing the risk of firefly damage.

[0006] To solve the above problems, the technical solution of this application is as follows:

[0007] In a first aspect, this application proposes a display module, comprising:

[0008] A housing having an accommodating cavity formed within it;

[0009] A light guide plate is disposed within the accommodating cavity, and one side of the light guide plate is a light incident surface; and

[0010] A backlight source is disposed within the accommodating cavity and located on one side of the light-incident surface;

[0011] The inner wall of the accommodating cavity is provided with a protrusion, which is used to limit the backlight in the thickness direction of the display module.

[0012] In one embodiment of this application, the housing includes:

[0013] The rear housing includes a bottom plate and side plates surrounding the edge of the bottom plate, the bottom plate and the side plates forming a groove, and the light guide plate and the backlight source being located within the groove; and

[0014] The front shell is connected to the side of the side plate away from the bottom plate and extends upward toward the groove; the front shell and the rear shell form the receiving cavity.

[0015] The protrusion is provided in one of the rear shell and the front shell, and the protrusion overlaps with the backlight in the thickness direction of the display module.

[0016] In one embodiment of this application, the light guide plate includes a main body and a first side portion connected to the side of the main body, the side of the first side portion away from the main body is the light incident surface, and the backlight is disposed on the side of the first side portion away from the main body;

[0017] The protrusion overlaps with the first side portion in the thickness direction of the display module, and the protrusion is also used to limit the first side portion in the thickness direction of the display module.

[0018] In one embodiment of this application, the distance between the protrusion and the backlight in the thickness direction of the display module is a first distance, which is less than or equal to 0.5 mm, and the distance between the protrusion and the first side portion in the thickness direction of the display module is a second distance, which is less than or equal to the first distance.

[0019] In one embodiment of this application, the protrusion is provided on the side of the front shell near the bottom plate.

[0020] In one embodiment of this application, the display module further includes:

[0021] An optical film is disposed on the side of the light guide plate away from the base plate; and

[0022] The display panel is disposed on the side of the optical film away from the light guide plate, the front shell overlaps the edge of the display panel, and the protrusion is located on one side of the display panel;

[0023] Wherein, a first clearance space is formed between the side of the display panel near the protrusion and the side plate, and the protrusion passes through the first clearance space.

[0024] In one embodiment of this application, the protrusion is located on one side of the optical film, the side of the display panel near the protrusion extends beyond the side of the optical film near the protrusion, and the side of the light guide plate near the protrusion extends beyond the side of the optical film near the protrusion.

[0025] The optical film near the protrusion, the display panel near the protrusion extending beyond the optical film, the light guide plate near the protrusion extending beyond the optical film, and the protrusion near the light guide plate form a support space.

[0026] The display module also includes a support member, which is disposed within the support space and connects the display panel and the light guide plate.

[0027] In one embodiment of this application, the side plate is provided with the protrusion.

[0028] In one embodiment of this application, the protrusion is detachably connected to the side plate.

[0029] In one embodiment of this application, the display module further includes:

[0030] An optical film is disposed on the side of the light guide plate away from the base plate, and at least a portion of the protrusion is located on one side of the optical film; and

[0031] The display panel is disposed on the side of the optical film away from the light guide plate, and the front shell overlaps the edge of the display panel;

[0032] Wherein, the side of the display panel near the protrusion extends beyond the side of the optical film near the protrusion, and the side of the optical film near the protrusion forms a second clearance space with the side plate;

[0033] At least a portion of the protrusion is located in the second clearance space and is connected to the portion of the display panel that extends beyond the optical film.

[0034] Secondly, this application proposes a display device, including a display module, the display module including a housing, a light guide plate and a backlight, wherein a cavity is formed in the housing; the light guide plate is disposed in the cavity, and one side of the light guide plate is a light incident surface; the backlight is disposed in the cavity and located on one side of the light incident surface; wherein, a protrusion is provided on the inner wall of the cavity, the protrusion being used to limit the backlight in the thickness direction of the display module.

[0035] In this application, on the one hand, a thinner and lighter display module design is achieved by eliminating the backplate inside the backlight module. On the other hand, by providing a protrusion on the inner wall of the accommodating cavity, the protrusion can limit the backlight source in the thickness direction of the display module, thereby preventing the backlight source from floating up after heating and reducing the risk of firefly defects. Therefore, this application can achieve a thinner and lighter display module design while reducing the risk of firefly defects. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of a display module in related technologies;

[0037] Figure 2 This is a schematic diagram of the display module of this application;

[0038] Figure 3yes Figure 2 Enlarged view of point A in the middle;

[0039] Figure 4 This is a schematic diagram of the first clearance space of the display module in the first embodiment of this application;

[0040] Figure 5 This is a schematic diagram of the first clearance space and support space of the display module in the first embodiment of this application;

[0041] Figure 6 This is a schematic diagram of a display module in the second embodiment of this application;

[0042] Figure 7 This is a schematic diagram of the second clearance space of the display module in the second embodiment of this application;

[0043] Figure 8 This is another schematic diagram of the display module in the second embodiment of this application. Detailed Implementation

[0044] The terms used in this specification and claims have the meanings that are commonly understood by one of ordinary skill in the art to which this application pertains. The terms used in this specification and claims are for the purpose of facilitating the description and understanding of this application only, and are not intended to limit this application to the narrow interpretation of the specific terms used in the specification and claims.

[0045] This application discloses a display device, which can be a tablet computer, e-reader, electronic display screen, laptop computer, mobile phone, augmented reality (AR) / virtual reality (VR) device, media player, wearable device, digital camera, car navigation system, etc. The display device includes a display module 100.

[0046] The display module 100 of this application is a liquid crystal display module. The display module 100 includes a housing 10, a light guide plate 20, a backlight 30, and a display panel 60. The display panel 60 is a liquid crystal display (LCD) panel.

[0047] It should be understood that the housing 10 in this application is not the backplate 200a in the related art. Please refer to [link / reference]. Figure 1In the related technology, the backplate 200a should be understood as an external structure in the backlight module used to house the backlight source 30a, the light guide plate 20a, and the optical film 50a. In the related technology, the display panel 60a is disposed outside the backplate 200a and housed within the housing 10a. In the related technology, on the one hand, due to the presence of the backplate 200a, the backplate 200a itself has a certain thickness, making it impossible to achieve a thinner and lighter design for the display module 100a. On the other hand, the U-fold structure 210a in the backplate 200a is used to hold down the backlight source 30a. If the backplate 200a is removed, the U-fold structure 210a will also be removed, causing the backlight source 30a to float when heated, easily resulting in a "firefly" effect.

[0048] It should be understood that the "firefly defect" refers to the appearance of obvious alternating bright and dark areas in the light-receiving area of ​​the display screen, resembling fireflies emitting light. In this application, the cause of the firefly defect is that after the backlight 30 heats up during operation, the backlight 30 floats up and couples with the light guide plate 20.

[0049] In this application, by eliminating the backplate in the backlight module, the light guide plate 20, backlight 30, optical film 50, and display panel 60 in the backlight module are disposed in the same housing 10, forming the display module 100 of this application. The housing 10 of this application is not equivalent to the backplate in the related art, because the housing 10 of this application is also used to house the display panel 60, while the backplate in the related art is only part of the backlight module and cannot house the display panel 60.

[0050] Please see Figure 2 The display module 100 of this application includes a housing 10, a light guide plate 20, and a backlight 30. A cavity is formed within the housing 10. The light guide plate 20 is disposed within the cavity. One side of the light guide plate 20 is a light incident surface. The backlight 30 is disposed within the cavity and located on one side of the light incident surface. A protrusion 40 is provided on the inner wall of the cavity. The protrusion 40 is used to limit the backlight 30 in the thickness direction Y of the display module 100.

[0051] In this embodiment, on the one hand, by eliminating the backplate within the backlight module, a thinner and lighter design of the display module 100 is achieved. On the other hand, by providing a protrusion 40 on the inner wall of the accommodating cavity, the protrusion 40 can limit the backlight 30 in the thickness direction Y of the display module 100, thereby preventing the backlight 30 from floating up after heating and reducing the risk of firefly defects. Therefore, this application can achieve a thinner and lighter design of the display module 100 while reducing the risk of firefly defects.

[0052] Optionally, the housing 10 includes a rear housing 11 and a front housing 12. The rear housing 11 includes a base plate 111 and a side plate 112 surrounding the edge of the base plate 111. The base plate 111 and the side plate 112 form a groove. The light guide plate 20 and the backlight 30 are located within the groove. The front housing 12 is connected to the side of the side plate 112 away from the base plate 111 and extends upward toward the groove. The front housing 12 and the rear housing 11 form a receiving cavity.

[0053] One of the rear shell 11 and the front shell 12 is provided with a protrusion 40. The protrusion 40 overlaps with the backlight 30 in the thickness direction Y of the display module 100.

[0054] In this embodiment, by providing a protrusion 40 on one of the rear shell 11 and the front shell 12, the protrusion 40 overlaps with the backlight 30 in the thickness direction Y of the display module 100. The protrusion 40 serves to limit the backlight 30 from floating, thereby reducing the risk of firefly defects.

[0055] Optionally, the back cover 11 can be made of metal. When the backlight 30 generates heat during operation, the metal back cover 11 can help dissipate heat. The back cover 11 can be made of materials such as aluminum alloy. The front cover 12 can be made of plastic.

[0056] It should be understood that when the display module 100 of this application is applied to a laptop computer, the rear cover 11 is the A cover of the laptop computer screen, and the front cover 12 is the B cover of the laptop computer screen.

[0057] Optionally, the rear shell 11 and the front shell 12 are connected by a snap-fit.

[0058] Optionally, the rear shell 11 and the front shell 12 are connected by adhesive.

[0059] Optionally, the backlight 30 includes an LED chip 31 and a circuit board 32. The LED chip 31 is electrically connected to the circuit board 32. The LED chip 31 is located on one side of the light-incident surface, and a portion of the circuit board 32 is located between the light guide plate 20 and the base plate 111, while another portion of the circuit board 32 is located between the LED chip 31 and the base plate 111. The circuit board 32 can be a flexible circuit board or a printed circuit board. The portion of the circuit board 32 located between the light guide plate 20 and the base plate 111 is bonded to the light guide plate 20 with adhesive.

[0060] Optionally, the display module 100 also includes a reflective sheet 72. The reflective sheet 72 is disposed between the light guide plate 20 and the base plate 111 to reflect light and improve the light utilization efficiency of the backlight 30.

[0061] Optionally, the display module 100 also includes an optical film 50 and a display panel 60. The optical film 50 is disposed on the side of the light guide plate 20 away from the base plate 111. The display panel 60 is disposed on the side of the optical film 50 away from the light guide plate 20. The front cover 12 overlaps the edge of the display panel 60.

[0062] Optionally, the optical film 50 includes at least one of a reflective film, a diffuser film, a brightness enhancement film, and a prism film. When there are two or more optical films 50, multiple optical films 50 are stacked.

[0063] Optionally, the display panel 60 includes a first polarizer 61, a first substrate 62, a second substrate 63, and a second polarizer 64. The first substrate 62 can be either an array substrate or a color filter substrate, and the second substrate 63 can be either an array substrate or a color filter substrate. A liquid crystal layer is disposed between the first substrate 62 and the second substrate 63.

[0064] Optionally, the light guide plate 20 includes a main body 21 and a first side portion 22 connected to the side of the main body 21. The side of the first side portion 22 away from the main body 21 is the light incident surface. The backlight 30 is disposed on the side of the first side portion 22 away from the main body 21.

[0065] The protrusion 40 overlaps with the first side portion 22 in the thickness direction Y of the display module 100. The protrusion 40 is also used to limit the first side portion 22 in the thickness direction Y of the display module 100.

[0066] In this embodiment, since the backlight 30 is located on the light-incident surface of the light guide plate 20, when the backlight 30 heats up, some of the heat is transferred to the first side portion 22 of the light guide plate 20. The first side portion 22 expands due to heat and may float up, resulting in a firefly-like defect. This embodiment addresses this by having the protrusion 40 overlap with the first side portion 22 in the thickness direction Y of the display module 100. This allows the protrusion 40 to limit the first side portion 22 in the thickness direction Y of the display module 100, thereby preventing the first side portion 22 of the light guide plate 20 from floating up after heating and reducing the risk of a firefly-like defect.

[0067] Optional, please refer to Figure 3 The distance between the protrusion 40 and the backlight 30 in the thickness direction Y of the display module 100 is the first distance. The first distance is less than or equal to 0.2 mm.

[0068] In this embodiment, considering the effect of thermal expansion and contraction, a first gap is reserved between the protrusion 40 and the backlight 30 without causing firefly-related problems, so as to reduce the interference frequency between the backlight 30 and the protrusion 40 during normal use of the display module 100.

[0069] Optionally, the first spacing can be one of the following values: 0.01 mm, 0.02 mm, 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.10 mm, 0.11 mm, 0.12 mm, 0.13 mm, 0.14 mm, 0.15 mm, 0.16 mm, 0.17 mm, 0.18 mm, 0.19 mm, or 0.20 mm.

[0070] The specific value of the first spacing depends on the needs of different products, and no specific value for the first spacing is specified here.

[0071] Optionally, the distance between the protrusion 40 and the first side portion 22 in the thickness direction Y of the display module 100 is a second distance.

[0072] In this embodiment, considering that when the backlight 30 generates heat, it will transfer heat to the first side portion 22 of the light guide plate 20, and the first side portion 22 will also experience thermal expansion and contraction, this embodiment reserves a second gap between the protrusion 40 and the first side portion 22 without causing firefly-like phenomena, in order to reduce the interference frequency between the first side portion 22 and the protrusion 40 during normal use of the display module 100.

[0073] Optionally, the second spacing is less than or equal to the first spacing. This is because the side of the LED 31 furthest from the base plate 111 is lower than the side of the light guide plate 20 furthest from the base plate 111.

[0074] Optionally, the second spacing can be one of the following values: 0.01 mm, 0.02 mm, 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, or 0.10 mm.

[0075] The specific value of the second spacing depends on the needs of different products, and no specific value for the second spacing is specified here.

[0076] In the first embodiment of this application:

[0077] Please see Figure 2 Optionally, the front shell 12 has a protrusion 40 on the side near the bottom plate 111.

[0078] Optionally, the protrusion 40 is integrally formed with the front shell 12. Since the front shell 12 is made of plastic, the protrusion 40 and the front shell 12 can be integrally formed during the injection molding stage, which improves production efficiency and the stability of the connection between the protrusion 40 and the front shell 12.

[0079] Optionally, the protrusion 40 is connected to the front shell 12 by adhesive.

[0080] Optionally, the protrusion 40 is detachably connected to the front housing 12. There are several ways to achieve this detachable connection: the protrusion 40 and the front housing 12 can be connected by a snap-fit, by a threaded connection, by a pin connection, by a key connection, by a hinge connection, or by a mortise and tenon joint. No specific limitation is made on the exact method of detachable connection.

[0081] Optional, please refer to Figure 2 The protrusion 40 is located on one side of the display panel 60.

[0082] Optional, please refer to Figure 4 A first clearance space Z1 is formed between the side of the display panel 60 near the protrusion 40 and the side plate 112. The protrusion 40 passes through the first clearance space Z1.

[0083] In this embodiment, since the protrusion 40 is located on the side of the front shell 12 near the bottom plate 111 and the front shell 12 overlaps the display panel 60, in order to avoid the display panel 60 blocking the protrusion 40 or to avoid interference between the display panel 60 and the protrusion 40, a first clearance space Z1 needs to be formed between the display panel 60 and the side plate 112. The protrusion 40 passes through the first clearance space Z1, thereby improving the stability of the internal structure of the display module 100.

[0084] Optional, please refer to Figure 5 The protrusion 40 is located on one side of the optical film 50. The side of the display panel 60 near the protrusion 40 extends beyond the side of the optical film 50 near the protrusion 40. The side of the light guide plate 20 near the protrusion 40 extends beyond the side of the optical film 50 near the protrusion 40.

[0085] Among them, the side of the optical film 50 near the protrusion 40, the part of the display panel 60 near the protrusion 40 that extends beyond the optical film 50, the part of the light guide plate 20 near the protrusion 40 that extends beyond the optical film 50, and the side of the protrusion 40 near the light guide plate 20 form a support space Z2.

[0086] The display module 100 also includes a support member 71. The support member 71 is located within the support space Z2 and connects the display panel 60 and the light guide plate 20.

[0087] In this embodiment, the display panel 60 includes a display area and a non-display area, with the non-display area located on at least one side of the display area. The front housing 12 overlaps the non-display area of ​​the display panel 60. The non-display area of ​​the display panel 60 is typically used to house non-light-emitting structures such as gate drive circuits. The optical film 50 is typically only provided for the display area of ​​the display panel 60. When the side of the display panel 60 near the protrusion 40 of the side plate 112 extends beyond the side of the optical film 50 near the protrusion 40, the portion of the display panel 60 extending beyond the optical film 50 may break after the display module 100 experiences drops, shocks, or other operating conditions. This is because, during drops or shocks, the portion of the display panel 60 extending beyond the optical film 50 will be subjected to a downward external force from the overlapping portion of the front housing 12 and an upward external force from the edge of the optical film 50. The compression from these two external forces can cause the portion of the display panel 60 extending beyond the optical film 50 to break.

[0088] To reduce the risk of breakage of the display panel 60, this embodiment provides a support member 71 within the support space Z2. The support member 71 can flatten the portion of the display panel 60 that extends beyond the optical film 50, thereby reducing the impact of external forces on the display panel 60 during drops or vibrations and improving the stability of the internal structure of the display module 100.

[0089] Optionally, the material of the support member 71 can be an elastic material.

[0090] Optionally, the material of the support member 71 can be polyethylene terephthalate, silicone, or other materials.

[0091] It should be understood that in this application, the light guide plate 20, backlight 30, optical film 50 and display panel 60 are first installed into the rear shell 11, and then the front shell 12 is connected to the rear shell 11.

[0092] In the second embodiment of this application:

[0093] To avoid redundancy, the second embodiment of this application will describe the parts that differ from the first embodiment of this application.

[0094] The second embodiment of this application differs from the first embodiment of this application in that:

[0095] Please see Figure 6 Optionally, the side panel 112 is provided with a protrusion 40.

[0096] Compared to the first embodiment, in the second embodiment, the protrusion 40 is provided on the side plate 112.

[0097] It should be understood that in this application, the light guide plate 20, backlight 30, optical film 50 and display panel 60 are first installed into the rear shell 11, and then the front shell 12 is connected to the rear shell 11.

[0098] Optionally, the protrusion 40 is integrally formed with the side plate 112. Since the side plate 112 is made of metal, when the protrusion 40 is integrally formed with the front shell 12, the metal protrusion 40 presses against the backlight 30. Due to the good thermal conductivity and structural strength of the metal material, the heat dissipation efficiency of the backlight 30 can be improved on the one hand, and the stability of the internal structure of the display module 100 can be improved on the other hand.

[0099] Optionally, the protrusion 40 and the side plate 112 are connected by adhesive. In this embodiment, the reflector 72, backlight 30, and light guide plate 20 can be installed inside the back plate before connecting the protrusion 40 and the side plate 112. Alternatively, the reflector 72, backlight 30, light guide plate 20, and optical film 50 can be installed in the backlight plate before connecting the protrusion 40 and the side plate 112. Compared to the unibody design, adhesive connection eliminates the need for additional space within the housing 10 to install the reflector 72, backlight 30, and light guide plate 20, thus reducing the bezel of the display module 100.

[0100] Optionally, the protrusion 40 is detachably connected to the side panel 112. Compared to adhesive bonding, the detachable connection design also takes into account the ease of disassembling the display module 100 during maintenance, thereby improving maintenance efficiency.

[0101] The detachable connection can be achieved in several ways: the protrusion 40 and the side plate 112 can be connected by a snap-fit, by a thread, by a pin, by a key, by a hinge, or by a mortise and tenon joint. No specific method of detachable connection is specified here.

[0102] Optionally, at least a portion of the protrusion 40 is located on one side of the optical film 50.

[0103] Please refer to Figure 7 The side of the display panel 60 near the protrusion 40 extends beyond the side of the optical film 50 near the protrusion 40. The side of the optical film 50 near the protrusion 40 forms a second clearance space Z3 with the side plate 112.

[0104] Please see Figure 8 At least a portion of the protrusion 40 is disposed in the second clearance space Z3 and is connected to the portion of the display panel 60 that extends beyond the optical film 50.

[0105] In this embodiment, please refer to Figure 7 In situations such as drops and shocks, the portion of the display panel 60 extending beyond the optical film 50 is at risk of breakage.

[0106] Please see Figure 8 In this embodiment, the protrusion 40 extends into the second clearance space Z3. The protrusion 40 can flatten the part of the display panel 60 that extends beyond the optical film 50, and play a role in supporting the part of the display panel 60 that extends beyond the optical film 50. When it is dropped or shaken, it can reduce the impact of external force on the display panel 60 and improve the stability of the internal structure of the display module 100.

[0107] Optionally, the material of the protrusion 40 can be an elastic material.

[0108] Optionally, the material of the protrusion 40 can be polyethylene terephthalate, silicone, or other materials.

[0109] Compared to the first embodiment, the second embodiment of this application utilizes the support member 71 to perform the function of the support member 71 in the first embodiment, thereby reducing the assembly step of the support member 71, achieving the purpose of reducing processes, improving production efficiency, and reducing production costs.

[0110] The specific embodiments of this application have been described in detail above. The embodiments disclosed above are merely preferred embodiments of this application. Those skilled in the art can make many modifications and improvements without departing from the concept of this application. All such modifications and improvements fall within the scope of protection defined by the claims of this application.

Claims

1. A display module, characterized by The display module comprises: a housing, an accommodating cavity is formed in the housing; a light guide plate, which is arranged in the accommodating cavity, one side of the light guide plate is a light inlet surface; and a backlight source, which is arranged in the accommodating cavity and located on one side of the light inlet surface; wherein an inner wall of the accommodating cavity is provided with a protruding portion, and the protruding portion is used for limiting the backlight source in the thickness direction of the display module.

2. The display module of claim 1, wherein, The housing comprises: a rear shell, which comprises a bottom plate and a side plate surrounding the edge of the bottom plate, the bottom plate and the side plate surround a groove, and the light guide plate and the backlight source are located in the groove; and a front shell, which is connected to the side of the side plate away from the bottom plate and extends above the groove, and the front shell and the rear shell surround the accommodating cavity; wherein one of the rear shell and the front shell is provided with the protruding portion, and the protruding portion overlaps the backlight source in the thickness direction of the display module.

3. The display module of claim 2, wherein the display module is configured to be mounted to a display module mounting surface of a display module mounting structure. The light guide plate comprises a main body portion and a first side portion connected to the side surface of the main body portion, the side of the first side portion away from the main body portion is the light inlet surface, and the backlight source is arranged on the side of the first side portion away from the main body portion; the protruding portion overlaps the first side portion in the thickness direction of the display module, and the protruding portion is also used for limiting the first side portion in the thickness direction of the display module.

4. The display module of claim 3, wherein the display module is configured to be mounted on a display device. The distance between the protruding portion and the backlight source in the thickness direction of the display module is a first distance, the first distance is less than or equal to 0.2 millimeters, the distance between the protruding portion and the first side portion in the thickness direction of the display module is a second distance, and the second distance is less than or equal to the first distance.

5. The display module of any one of claims 2-4, wherein, The side of the front shell close to the bottom plate is provided with the protruding portion.

6. The display module of claim 5, wherein the display module is configured to be mounted to a display module mounting surface of a display module mounting structure. The display module further comprises: an optical film, which is arranged on the side of the light guide plate away from the bottom plate; and a display panel, which is arranged on the side of the optical film away from the light guide plate, the front shell overlaps the edge of the display panel, and the protruding portion is located on one side of the display panel; wherein a first avoiding space is formed between the side of the display panel close to the protruding portion and the side plate, and the protruding portion passes through the first avoiding space.

7. The display module of claim 6, wherein the display module is configured to be mounted to a display module mounting surface of a display module mounting structure. The protruding portion is located on one side of the optical film, the side of the display panel close to the protruding portion is arranged beyond the side of the optical film close to the protruding portion, and the side of the light guide plate close to the protruding portion is arranged beyond the side of the optical film close to the protruding portion; wherein the side of the optical film close to the protruding portion, the part of the display panel close to the protruding portion beyond the optical film, the part of the light guide plate close to the protruding portion beyond the optical film, and the side of the protruding portion close to the light guide plate form a supporting space; The display module further comprises a support, which is arranged in the supporting space and connects the display panel and the light guide plate.

8. The display module of any one of claims 2-4, wherein, The side plate is provided with the protruding portion.

9. The display module of claim 8, wherein the display module is configured to be mounted to a display module mounting surface of a display module mounting structure. The protruding portion is detachably connected with the side plate.

10. The display module of claim 8, wherein the display module is configured to be mounted on a display stand. The display module further comprises: an optical film, which is arranged on the side of the light guide plate away from the bottom plate, and at least part of the protruding portion is located on one side of the optical film; and A display panel is arranged on a side of the optical film away from the light guide plate, and the front shell is overlapped with the edge of the display panel. The side of the display panel close to the protruding part is arranged beyond the side of the optical film close to the protruding part, and the side of the optical film close to the protruding part forms a second avoiding space with the side plate. At least part of the protruding part is arranged in the second avoiding space and connected with the part of the display panel beyond the optical film.

11. A display device comprising: The display module comprises the display module as claimed in any one of claims 1-10.

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