Display module and display device

Abstract

The present application discloses a display module and a display device, which relate to the field of display technology and can improve the waterproofness of functional devices contained in the display device. The display module includes a display panel, a heat dissipation component and a functional device. The display panel has a light-emitting surface and a backlight surface. The heat dissipation component is arranged on the backlight surface of the display panel, and includes a main body and a boss. The main body is provided with a first avoidance hole, and the side wall where the side edge of the main body close to the first avoidance hole is located is the first side wall. The boss is arranged on the first side wall. The vertical projection of the first avoidance hole on the first side wall is located within the range of the vertical projection of the boss on the first side wall. At least part of the functional device is located in the first avoidance hole. The present application is used to prepare a display device.

Description

Technical Field

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

[0002] With the development of display technology, display devices, such as mobile phones, tablets, computers, etc., are increasingly used in people's lives. Display devices usually include a display panel for displaying images; a heat dissipation component (usually a laminated structure) stacked on the back side (non-display side) of the display panel, and a functional device arranged on the side of the heat dissipation layer away from the display panel.

[0003] The functional device may be a device that needs to collect light from the light-emitting side (display side) of the display panel, and illustratively, the functional device may be a front camera assembly. The heat dissipation layer is provided with an avoidance hole so that the functional device can collect light from the light-emitting side of the display panel through the avoidance hole.

[0004] As display devices develop towards narrow bezels, the bezel width of display devices is getting narrower and narrower. The distance between the functional device and the bezel is getting smaller and smaller, that is, the interval between the avoidance hole and the boundary of the heat dissipation layer is getting smaller and smaller, resulting in poor sealing of the avoidance hole. Using the above display device in a humid environment for a long time may cause moisture to enter the avoidance hole and condense on the surface of the functional device to form water mist, affecting the lighting performance of the functional device. Summary of the invention

[0005] Embodiments of the present disclosure provide a display module and a display device, which can improve the waterproofness of functional components included in the display device.

[0006] To achieve the above objectives, the embodiments of the present disclosure adopt the following technical solutions:

[0007] On the one hand, an embodiment of the present disclosure provides a display module. The display module includes a display panel, a heat dissipation assembly and a functional device. The display panel has a light emitting surface and a backlight surface. The heat dissipation assembly is arranged on the backlight surface of the display panel, and includes a main body and a boss. The main body is provided with a first avoidance hole, and the side wall where the side edge of the main body close to the first avoidance hole is located is the first side wall. The boss is arranged on the first side wall. The vertical projection of the first avoidance hole on the first side wall is located within the range of the vertical projection of the boss on the first side wall. At least part of the functional device is located in the first avoidance hole.

[0008] In some embodiments, the boss includes an extension portion. The extension portion extends along a first direction, and along the first direction, the size of the extension portion is greater than the size of the first avoidance hole, and the vertical projection of the first avoidance hole on the first side wall is located within the range of the vertical projection of the extension portion on the first side wall. The extension direction of the side of the main body close to the first avoidance hole is the first direction.

[0009] In some embodiments, the first side wall includes two first sub-side walls located on both sides of the boss. Along the first direction, an angle between an end surface of the extension portion and the first sub-side wall connected to the end surface is greater than 90 degrees.

[0010] In some embodiments, the boss further includes a profiling portion, which is located on a side of the extension portion away from the first avoidance hole. A vertical projection of the profiling portion on the first side wall overlaps with a vertical projection of the first portion of the first avoidance hole on the first side wall. A vertical projection of the profiling portion on the backlight surface has the same shape as a vertical projection of the first portion of the first avoidance hole on the backlight surface. The first portion is a portion of the first avoidance hole close to the first side wall.

[0011] In some embodiments, the vertical projection of the profiling portion on the first side wall is within the vertical projection range of the first avoidance hole on the first side wall. The first avoidance hole has a circular outline, and the edge of the profiling portion away from the first avoidance hole is arc-shaped.

[0012] In some embodiments, the heat dissipation assembly includes a heat dissipation layer, a heat conductive layer, and an adhesive layer that are stacked; wherein the heat dissipation layer is located farther away from the display panel than the adhesive layer, and the heat conductive layer is located between the heat dissipation layer and the adhesive layer.

[0013] In some embodiments, a vertical projection of the boss on the backlight surface of the display panel is located within the range of the display panel.

[0014] In some embodiments, the display module further comprises a sealing portion which is arranged on a side of the boss away from the main body and at least covers a side wall of the boss away from the first avoidance hole and is configured to isolate the side wall of the boss away from the first avoidance hole from air.

[0015] In some embodiments, along the first direction, two ends of the sealing portion are respectively bonded to portions of the first side wall located on both sides of the boss.

[0016] In some embodiments, the display module further includes a polarizer, a cover plate, and an adhesive layer. The polarizer is disposed on a side of the display panel away from the heat dissipation assembly. The cover plate is disposed on a side of the polarizer away from the display panel. The adhesive layer includes an adhesive portion and an overflow portion; the adhesive portion is disposed between the polarizer and the cover plate, and the overflow portion extends out of the side wall of the polarizer close to the boss. The sealing portion also covers a portion of the side wall of the display panel close to the boss, a portion of the side wall of the polarizer close to the boss, and at least a portion of the overflow portion, and is bonded to the overflow portion, and a vertical projection of the sealing portion on the plane where the cover plate is located is within the range of the cover plate.

[0017] In some embodiments, the overflow portion includes two first sub-overflow portions, and the two first sub-overflow portions are spaced apart along the first direction. Two ends of the sealing portion along the first direction are respectively bonded to the two first sub-overflow portions.

[0018] In some embodiments, the overflow portion further includes a second sub-overflow portion, the second sub-overflow portion is located between the two first sub-overflow portions and connected to the two first sub-overflow portions. The sealing portion also covers the second sub-overflow portion and is bonded to the second sub-overflow portion.

[0019] In some embodiments, the display panel includes a main body and a raised portion. The main body is provided with a second avoidance hole, and the vertical projection of the second avoidance hole on the backlight surface at least partially overlaps with the vertical projection of the first avoidance hole on the backlight surface. The side wall of the main body close to the side of the second avoidance hole is the second side wall, and the raised portion is arranged on the second side wall. The vertical projection of the second avoidance hole on the second side wall is located within the range of the vertical projection of the raised portion on the second side wall. The vertical projection of the polarizer and the adhesive layer on the cover plate roughly overlaps with the vertical projection of the display panel on the cover plate.

[0020] In some embodiments, part of the functional device is located on a side of the first avoidance hole away from the display panel, and abuts against a surface of the heat dissipation component away from the display panel. The display module further includes a sealant. The sealant is arranged around the circumference of the functional device and covers the position where the functional device and the heat dissipation component contact each other.

[0021] In the display module provided by the embodiment of the present disclosure, at least part of the functional device is arranged in the first avoidance hole of the heat dissipation component. The side wall of the heat dissipation component close to the side of the first avoidance hole (the side closest to the first avoidance hole) is the first side wall. A boss is provided on the first side wall, and the vertical projection of the first avoidance hole on the first side wall is located within the range of the vertical projection of the boss on the first side wall. In this way, the distance between the first avoidance hole and the side wall of the heat dissipation component closest to the first avoidance hole can be increased by the boss, thereby reducing the possibility of water vapor intruding into the first avoidance hole from the above-mentioned side wall, improving the sealing of the first avoidance hole, improving the waterproof performance of the functional device, and improving the reliability of the functional device.

[0022] On the other hand, an embodiment of the present disclosure further provides a display device, which includes the display module described in any of the above embodiments.

[0023] The display device provided in the embodiment of the present disclosure can achieve the same beneficial effects as the above-mentioned display module because it adopts the display module in the above-mentioned embodiment, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual sizes of the products involved in the embodiments of the present disclosure.

[0025] Figure 1 is a schematic structural diagram of a display device according to some embodiments of the present disclosure;

[0026] Figure 2 For along Figure 1 A sectional view with the center section line AA;

[0027] Figure 3 For along Figure 1 Another section view of the middle section line AA;

[0028] Figure 4 A structural diagram of a display module of some embodiments of the present disclosure;

[0029] Figure 5 Another structural diagram of a display module according to some embodiments of the present disclosure;

[0030] Figure 6 is another structural diagram of a display module of some embodiments of the present disclosure;

[0031] Figure 7 For along Figure 1 Another cross-sectional view of the middle section line AA;

[0032] Figure 8 is another structural diagram of a display module of some embodiments of the present disclosure;

[0033] Fig. 9 is another structural diagram of a display module of some embodiments of the present disclosure;

[0034] Fig.10 This is another structural diagram of a display module according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0036] Unless the context requires otherwise, throughout the specification and claims, the term "including" is to be interpreted as an open, inclusive meaning, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary" or "such as" are intended to indicate that specific features, structures, materials or characteristics related to the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0037] In the description of the present disclosure, it is necessary to understand that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", and "horizontal" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0038] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0039] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0040] The use of "configured to" herein is intended to be open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.

[0041] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of variation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0042] Some embodiments of the present disclosure provide a display device 100, referring to Figure 1 The display device 100 can be any product or component with a display function, such as a television, a laptop computer, a tablet computer, a mobile phone, a personal digital assistant (PDA), a navigator, a wearable device, an augmented reality (AR) device, a virtual reality (VR) device, etc.

[0043] The display device 100 may be a liquid crystal display (LCD); the display device 100 may also be an electroluminescent display or a photoluminescent display. When the display device 100 is an electroluminescent display, the electroluminescent display may be an organic light-emitting diode (OLED) or a quantum dot electroluminescent display (QLED). When the display device is a photoluminescent display, the photoluminescent display may be a quantum dot photoluminescent display.

[0044] In some embodiments, see Figure 1 The display device 100 may include a display module 110 and a frame 120, wherein the frame 120 is disposed around the display module 110. The display module 110 is configured to display image information; and the frame 120 is configured to support and protect the display module 110.

[0045] In some embodiments, see Figure 2 , Figure 2 The frame 120 is hidden; the display module 110 includes a display panel 10 , a heat dissipation component 20 and a functional device 30 .

[0046] The display panel 10 has a light emitting surface 101 ( Figure 2 The upper surface of the display panel 10) and the backlight surface 102 ( Figure 2 For example, when the display device is an LCD, the display panel 10 may include structures such as a backlight module, an array substrate, a liquid crystal layer, and a cell substrate; when the display device is an OLED, the display panel 10 may include structures such as an array substrate, a light-emitting device, and an encapsulation layer. The embodiment of the present disclosure does not specifically limit the type of the display panel 10 and the structure included in the display panel 10.

[0047] The heat dissipation component 20 is disposed on the backlight surface 102 of the display panel 10 , and is used to dissipate heat for the display panel 10 and other heat-generating components (such as a driver chip, a central processing unit, and other structures) of the display device 100 .

[0048] In some embodiments, see Figure 3 , Figure 3 The back view of the display module 110; the heat dissipation assembly 20 may include a heat dissipation layer 201, a heat conductive layer 202 and an adhesive layer 203 arranged in a stacked manner. The heat dissipation layer 201 is further away from the display panel 10 than the adhesive layer 203, and the heat conductive layer 202 is located between the heat dissipation layer 201 and the adhesive layer 203.

[0049] The heat dissipation layer 201, the heat conducting layer 202 and the adhesive layer 203 can first be formed into a laminated structure through a module process, and then assembled with the display panel 10. In this way, the vertical projections of the three on the backlight surface 102 of the display panel 10 can be roughly overlapped, that is, the three are identical in structure.

[0050] Exemplarily, the material of the heat dissipation layer 201 may include a material with good thermal conductivity, such as copper, copper alloy or graphite sheet. The material of the heat conductive layer 202 may include a material with good thermal conductivity and certain elastic deformation ability, such as foam, so that the heat conductive layer 202 can transfer the heat on the display panel 10 to the heat dissipation layer 201 and play a certain buffering role for the display panel 10. The adhesive layer 203 is used to adhere the heat conductive layer 202 to the backlight surface 102 of the display panel 10.

[0051] It should be understood that in some embodiments, the heat dissipation layer 20 may also include other film layer structures. For example, a heat conductive adhesive layer for bonding the heat conductive layer 202 and the adhesive layer 203 may be included between the heat conductive layer 202 and the adhesive layer 203; or, when the display panel 10 is an OLED panel, the heat dissipation layer 20 may also include a support layer (for example, a rigid support layer made of SUS stainless steel). The heat dissipation layer 20 may also use other film layers to replace one or more of the heat dissipation layer 201, the heat conductive layer 202 and the adhesive layer 203. Therefore, it should be understood that the heat dissipation assembly 20 in the embodiment of the present disclosure is not limited to a specific structure, and the heat dissipation assembly 20 includes all film layer structures arranged between the display panel 10 and the functional device 30.

[0052] The functional device 30 is also disposed on the backlight surface of the display panel 10, that is, the display device 100 adopts the technology of disposing the functional device 30 on the back side (the side away from the light emitting surface) of the display panel 10. The functional device 30 can be a device that can realize specific functions, such as a front camera component, an under-screen fingerprint component, a 3D face recognition component, an iris recognition component, a proximity sensor, etc.

[0053] See also Figure 2 , part of the functional device 30 can be located on the side of the heat dissipation component 20 away from the display panel 10. The functional device 30 needs to be illuminated from the light-emitting surface of the display panel 10. In order to allow the light on the light-emitting surface 11 of the display panel 10 to enter the functional device 30, a hole design needs to be made on the heat dissipation component 20.

[0054] See also Figure 4 , Figure 4 The heat dissipation assembly 20 of the display module shown includes a main body 21 and a boss 22 .

[0055] The main body 21 is provided with a first avoidance hole 211, and at least part of the functional device 30 is located in the first avoidance hole 211, so that the light on the side of the light-emitting surface 11 of the display panel 10 can pass through the heat dissipation component 20 and enter the functional device 30. Exemplarily, taking the functional device 30 as a front camera component, the front camera component needs to collect the light on the side of the light-emitting surface of the display panel 10 to form an image when working. The light on the side of the light-emitting surface of the display panel 10 can pass through the first avoidance hole 211 and enter the front camera component, so that the front camera component can capture the image on the side of the light-emitting surface of the display panel 10.

[0056] The side wall of the main body 21 where the side edge 212 (the side edge closest to the first avoidance hole 211) is located is the first side wall 213, that is, the first side wall 213 is the side wall on the main body 21 closest to the first avoidance hole 211; wherein the first side wall 213 includes a surface P1 covered by the boss 22. The boss 22 is disposed on the first side wall 213, and the vertical projection of the first avoidance hole 211 on the first side wall 213 is located within the range of the vertical projection of the boss 22 on the first side wall 213. In this way, the distance between the first avoidance hole 211 and the side wall of the heat dissipation component 20 closest to the first avoidance hole 211 can be increased by the boss 22.

[0057] Among them, the upper side wall of the heat dissipation component 20 closest to the first avoidance hole 211 includes the side wall of the boss 22 away from the main body 21 and the part of the first side wall 213 not covered by the boss 22. For the convenience of description below, the "upper side wall of the heat dissipation component 20 closest to the first avoidance hole 211" is referred to as the "upper side wall of the heat dissipation component 20".

[0058] The display module 110 provided in the embodiment of the present disclosure is shown in FIG. Figure 2 and Figure 3 At least part of the functional device 30 is disposed in the first avoidance hole 211 of the heat dissipation component 20, so that light on the light emitting surface 101 side of the display panel 10 can pass through the heat dissipation component 20 and enter the functional device 30, so that the functional device 30 can work normally.

[0059] See also Figure 4 A boss 22 is provided on the first side wall 213 of the heat dissipation component 20, and the vertical projection of the first avoidance hole 211 on the first side wall 213 is located within the range of the vertical projection of the boss 22 on the first side wall 213. In this way, the boss 22 can increase the distance between the first avoidance hole 211 and the upper side wall of the heat dissipation component 20, reduce the possibility of water vapor invading the first avoidance hole 211 from the upper side wall of the heat dissipation component 20, improve the sealing of the first avoidance hole 211, improve the waterproof performance of the functional device 30, and improve the reliability of the functional device 30.

[0060] When the heat dissipation component 20 includes a heat dissipation layer 201, a thermal conductive layer 202 and an adhesive layer 203, the boss 22 can not only reduce the possibility of water vapor invading the first avoidance hole 211 from between adjacent film layers of the heat dissipation component 20 (between the heat dissipation layer 201 and the thermal conductive layer 202, and between the thermal conductive layer 202 and the adhesive layer 203), but also reduce the possibility of water vapor invading the first avoidance hole 211 from the inside of a single film layer (heat dissipation layer 201, thermal conductive layer 202 or adhesive layer 203).

[0061] In some embodiments, see Figure 4 The boss 22 includes an extension portion 221. The vertical projection of the first avoidance hole 211 on the first side wall 213 is located within the range of the vertical projection of the extension portion 211 on the first side wall 213. The extension portion 221 can increase the interval between the first avoidance hole 211 and the upper side wall of the heat dissipation component 2, improve the sealing of the first avoidance hole 211, and further improve the waterproof performance of the functional device 30.

[0062] The extending direction of the side edge 212 of the main body 21 close to the first avoidance hole 211 is the first direction M1 (i.e. Figure 4 The extension portion 221 extends along the first direction M1, and along the first direction M1, the size of the extension portion 221 is larger than the size of the first avoidance hole 211, so that the length of the vertical projection of the extension portion 211 on the first side wall 213 is larger than the length of the vertical projection of the first avoidance hole 211 on the first side wall 213; and thus the vertical projection of the extension portion 211 on the first side wall 213 can better cover the vertical projection of the first avoidance hole 211 on the first side wall 213. This is conducive to reducing the relative position accuracy between the boss 22 and the first avoidance hole 211, and reducing the difficulty of manufacturing the heat dissipation component 20.

[0063] For example, see Figure 3 The center line L1 of the extension portion 221 along the first direction M1 roughly coincides with the center line L2 of the first avoidance hole 211 along the first direction M1, so as to improve the uniformity of the sealing performance on both sides of the center line L2 of the first avoidance hole 211 and avoid differences in sealing performance on both sides of the center line L2 of the first avoidance hole 211.

[0064] In some embodiments, see Figure 4 The first side wall 213 includes two first sub-side walls 2121 located on both sides of the boss 22 , that is, along the first direction M1 , two portions of the first side wall 213 not covered by the boss 22 are respectively a first sub-side wall 2121 .

[0065] Along the first direction M1, the angle θ between the end face 2211 of the extension portion 221 and the first sub-side wall 2121 connected to the end face 2211 is greater than 90 degrees. Exemplarily, the above-mentioned angle θ can be 120°, 135° or 150°, etc., which are not listed here one by one. In this way, the first side wall 213 is connected to the side wall of the boss 22 away from the main body 21 through an inclined side wall (the end face 2211 of the extension portion 221), avoiding the occurrence of stress concentration at the connection between the main body 21 and the boss 22, making the connection between the boss 22 and the main body 21 more stable. At the same time, it can also avoid the occurrence of sharp top angles on the boss 22 (the angle between the end face 2211 and the surface of the extension portion 211 away from the main body 21), and avoid the boss 22 scratching other parts of the display module 110 during the assembly process of the display module 110.

[0066] In some embodiments, see Figure 5 The boss 22 further includes a profiling portion 222, which is located on a side of the extension portion 221 away from the first avoidance hole 211. The vertical projection of the profiling portion 222 on the first side wall 213 overlaps with the vertical projection of the first portion 2111 of the first avoidance hole 211 on the first side wall 213. The shape of the vertical projection of the profiling portion 222 on the backlight surface 102 is the same as the shape of the vertical projection of the first portion 2111 of the first avoidance hole 211 on the backlight surface 102.

[0067] The first portion 2111 is the portion of the first avoidance hole 211 close to the first side wall 213. Figure 5 The portion of the first avoidance hole 211 close to the first side wall 213 refers to the portion close to the first side wall 213 (the upper portion of the plane P2) of the two portions divided by the first avoidance hole 211 through a plane P2 parallel to the first side wall 213. The shape of the vertical projection of the first portion 2111 on the backlight surface 102 refers to the shape surrounded by the outline of the vertical projection of the first portion 2111 on the backlight surface 102 (display panel 10).

[0068] The contoured portion 222 can not only increase the distance between the first avoidance hole 211 and the upper side wall of the heat dissipation component 20 , but also make the spacing between each part of the first avoidance hole 211 and the upper side wall of the heat dissipation component 20 more uniform, thereby improving the sealing performance of the first avoidance hole 211 .

[0069] The direction perpendicular to the first direction M1 in the plane where the heat dissipation component 20 is located is the second direction M2 ( Figure 5 The larger the size of the extension portion 221 of the boss 22 along the second direction M2, the smaller the size of the profiling portion 222 is designed to be, and the smaller the first portion 2111 is. Conversely, the smaller the size of the extension portion 221 of the boss 22 along the second direction M2, the larger the size of the profiling portion 222 is designed to be, and the larger the first portion 2111 is. The sizes of the extension portion 221 and the profiling portion 222 can be designed according to actual needs, and the embodiments of the present disclosure do not specifically limit this.

[0070] Compared to increasing the spacing between the first avoidance hole 211 and the upper side wall of the heat dissipation component 20 by increasing the thickness of the extension portion 221, the embodiment of the present disclosure increases the spacing between the first avoidance hole 211 and the upper side wall of the heat dissipation component 20 by matching the extension portion 221 and the contoured portion 222. That is, by providing the contoured portion 222, the size of the extension portion 221 along the second direction M2 can be reduced, thereby reducing the overall material consumption of the boss 22 and reducing the manufacturing cost of the heat dissipation component 20.

[0071] For example, see Figure 5 The vertical projection of the profiling portion 222 on the first side wall 213 is located within the vertical projection range of the first avoidance hole 211 on the first side wall 213. That is, the dimension D1 of the profiling portion 222 along the first direction M1 is less than or equal to the dimension D2 of the first avoidance hole 211 along the first direction M1.

[0072] In some embodiments, see Figure 5 The contour shape of the first avoidance hole 211 (the shape of the vertical projection of the side wall of the first avoidance hole 211 on the backlight surface 102 of the display panel 10) is circular, and the edge of the profiling portion 222 away from the first avoidance hole 211 is arc-shaped.

[0073] It is understandable that in some other embodiments, the contour shape of the first avoidance hole 211 can also be other shapes. For example, the contour shape of the first avoidance hole 211 can also be a rectangle, a triangle, a regular pentagon, a regular hexagon, and a trapezoid, etc., which are not listed here one by one. The shape of the profiling portion 222 can be adaptively designed according to the contour shape of the first avoidance hole 211. For example, when the contour shape of the first avoidance hole 211 is a rectangle, the shape of the profiling portion 222 is also a rectangle.

[0074] In some embodiments, see Figure 5, the vertical projection of the boss 22 on the backlight surface 102 of the display panel 10 is located within the range of the display panel 10, that is, the edge of the boss 22 away from the main body 21 does not exceed the edge of the display panel 10, so that the surface of the boss 22 close to the display panel 10 can be attached to the backlight surface of the display panel 10, avoiding the part of the boss 22 from being suspended, thereby enhancing the structural stability of the display module 110. At the same time, it can also avoid the increase of the frame width of the display device 100 due to the provision of the boss 22, which is conducive to the display device 100 to achieve a narrow frame.

[0075] In some embodiments, see Figure 6 The display module 100 further includes a sealing portion 40. The sealing portion 40 is disposed on a side of the boss 22 away from the main body 21, and at least covers the side wall of the boss 22 away from the main body 21, and is configured to isolate the side wall of the boss 22 away from the main body 21 from the air, thereby further reducing the possibility of water vapor invading the first avoidance hole 211 from the side wall of the boss 22 away from the main body 21, thereby improving the sealing performance of the first avoidance hole 211 and improving the waterproof performance of the functional device 30.

[0076] In some embodiments, see Figure 6 , along the first direction M1, the two ends of the sealing part 40 are respectively bonded to the parts of the first side wall 213 located on both sides of the boss 22, that is, the two ends of the sealing part 40 are respectively bonded to a first sub-side wall 2121. In this way, the sealing part 40 can completely cover the side wall of the boss 22 away from the main body 21, and completely isolate the side wall of the boss 22 away from the main body 21 from the air, which is conducive to improving the sealing performance of the first avoidance hole 211.

[0077] In some embodiments, see Figure 7 The display device 110 further includes a polarizer 50 , a cover plate 60 and an adhesive layer 70 .

[0078] The polarizer 50 is disposed on a side of the display panel 10 away from the heat dissipation assembly 20 , that is, the polarizer 50 is disposed on a side of the light emitting surface 102 of the display panel 10 . The cover plate 60 is disposed on a side of the polarizer 50 away from the display panel 10 .

[0079] The adhesive layer 70 includes an adhesive portion 71 and an overflow portion 72. The adhesive portion 71 is disposed between the polarizer 50 and the cover plate 60, and is used to bond and fix the polarizer 50 to the cover plate 60. The overflow portion 72 extends out of the side wall of the polarizer 50 close to the boss 22. The sealing portion 40 also covers a portion of the side wall of the display panel 10 close to the boss 22, a portion of the side wall of the polarizer 50 close to the boss 22, and at least a portion of the overflow portion 72, and is bonded to the overflow portion 72. That is, along the thickness direction of the display module 110, the sealing portion 40 is an integrated structure, and the sealing portion 40 is bonded to the overflow portion 72. The adhesion between the sealing portion 40 and the overflow portion 72 is strong, which can reduce the risk of the sealing portion 40 falling off and enhance the stability of the sealing portion 40.

[0080] See also Figure 8 The vertical projection of the sealing portion 40 on the plane where the cover plate 60 is located is located within the range of the cover plate 60. In this way, the increase in the frame width of the display device 100 caused by the provision of the sealing portion 40 can be avoided, which is conducive to achieving a narrow frame of the display device 100.

[0081] In some embodiments, see Figure 8 The overflow portion 72 includes two first sub-overflow portions 721, and the two first sub-overflow portions 721 are spaced apart along the first direction M1. The two ends of the sealing portion 40 along the first direction M1 are respectively bonded to the two first sub-overflow portions 721. Figure 8 Along the first direction M1, the vertical projections of the two first sub-overflow portions 721 on the cover plate 60 are respectively located on both sides of the vertical projection of the boss 22 on the cover plate 60.

[0082] In some embodiments, see Fig. 9 The overflow portion 72 further includes a second sub-overflow portion 722, which is located between the two first sub-overflow portions 721 and connected to the two first sub-overflow portions 721. The sealant portion 40 also covers the second sub-overflow portion 722 and is bonded to the second sub-overflow portion 722. In this way, the contact area between the sealant portion 40 and the overflow portion 72 can be increased, and the bonding strength of the sealant portion 40 can be enhanced.

[0083] It should be understood that, in some other embodiments, the overflow portion 72 may also include only the second sub-overflow portion 722 , or only one of the first sub-overflow portions 721 , or one of the first sub-overflow portions 721 and the second sub-overflow portion 722 .

[0084] In some embodiments, taking the functional device 30 as a camera assembly as an example, the lighting ability of the functional device 30 can be further enhanced by opening a hole in the display panel 10, so that the light on the side of the light emitting surface 101 of the display panel 10 can fully enter the functional device 30, thereby ensuring the normal use of the functional device 30.

[0085] In the case where a hole is opened on the display panel 10, see Figure 7 and Fig.10 The display panel 10 includes a main body 11 and a raised portion 12. The main body 11 is provided with a second avoidance hole 111, and the vertical projection of the second avoidance hole 111 on the backlight surface 102 of the display panel 10 at least partially overlaps with the vertical projection of the first avoidance hole 211 on the backlight surface 12 of the display panel 10. In this way, part of the functional device 30 can be extended from the first avoidance hole 211 into the second avoidance hole 111 (such as Figure 7 or, the light on one side of the light emitting surface 12 of the display panel 10 can enter the first avoidance hole 211 through the second avoidance hole 111, and further radiate to the functional device 30 located in the first avoidance hole 21. In this way, the lighting capacity of the functional device 30 is improved.

[0086] The side wall of the body 11 where the side edge 112 near the second avoidance hole 111 is located is the second side wall 113, and the protrusion 12 is arranged on the second side wall 113. The vertical projection of the second avoidance hole 111 on the second side wall 113 is located within the range of the vertical projection of the protrusion 12 on the second side wall 113. The protrusion 12 can increase the distance between the second avoidance hole 111 and the side wall of the display panel 10 closest to the second avoidance hole 111 ( Fig.10 The spacing between the upper side wall of the display panel 10) is improved, the sealing of the second avoidance hole 111 is improved, and the sealing of the functional device 30 is improved.

[0087] The structure and shape of the protrusion 12 may refer to the structure and shape of the protrusion 22 of the heat dissipation assembly 20. For example, the protrusion 12 may include a second extension portion and a second contour portion, and the specific structure thereof will not be described in detail herein.

[0088] The vertical projections of the polarizer 50 and the adhesive layer 70 on the cover plate 60 substantially overlap with the vertical projection of the display panel 10 on the cover plate 60 .

[0089] See also Figure 7 The polarizer 50 is provided with a third avoidance hole 51, and the polarizer 50 includes a second main body and a second boss (not shown in the figure), and the structure of the second boss is the same as the structure of the protrusion 12 of the display panel 10. Figure 7, a fourth avoidance hole 71 is provided on the adhesive layer 70, and the adhesive layer 70 includes a third main body and a third boss (not shown in the figure), and the structure of the third boss is the same as the structure of the raised portion 12 of the display panel 10. In this way, by providing the third avoidance hole 51 and the fourth avoidance hole 71, the lighting ability of the functional device 30 can be enhanced, and the sealing of the third avoidance hole 51 and the fourth avoidance hole 71 can be enhanced by the second boss and the third boss, thereby improving the overall sealing of the avoidance holes (the first avoidance hole 211, the second avoidance hole 111, the third avoidance hole 51 and the fourth avoidance hole 71), improving the sealing of the display module, and improving the waterproof performance of the functional device 30.

[0090] In some embodiments, the sealing portion 40 may also cover the side wall of the protrusion 12 away from the body portion 11 , the side wall of the second boss away from the second body portion, and the side wall of the third boss away from the third body portion.

[0091] In some embodiments, see Figure 7 , part of the functional device 30 is located on the side of the first avoidance hole 211 away from the display panel 10, and abuts against the surface of the heat dissipation component 20 away from the display panel 10. The display device further includes a sealant 80. The sealant 80 is arranged around the circumference of the functional device 30, and covers the position where the functional device 30 and the heat dissipation component 20 contact each other. In this way, the sealing performance of the contact position between the functional device 30 and the heat dissipation component 20 can be increased, the risk of water vapor entering the first avoidance hole 211 from the gap where the functional device 30 and the heat dissipation component 20 contact can be reduced, the sealing performance of the first avoidance hole 211 can be enhanced, and the waterproof performance of the functional device 30 can be improved.

[0092] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0093] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A display module, characterized in that: include: A display panel having a light emitting surface and a backlight surface; A heat dissipation component is arranged on the backlight surface of the display panel, comprising a main body and a boss; the main body is provided with a first avoidance hole, and the side wall of the main body close to the first avoidance hole is the first side wall; the boss is arranged on the first side wall; the vertical projection of the first avoidance hole on the first side wall is located within the range of the vertical projection of the boss on the first side wall; A functional device, at least partially located in the first avoidance hole; The polarizer is arranged on a side of the display panel away from the heat dissipation component. The polarizer is provided with a third avoidance hole, and the third avoidance hole is arranged opposite to the functional device.

2. The display module according to claim 1, characterized in that: The boss includes an extension portion, which extends along a first direction, and along the first direction, the size of the extension portion is larger than the size of the first avoidance hole, and the vertical projection of the first avoidance hole on the first side wall is located within the range of the vertical projection of the extension portion on the first side wall; wherein, the extension direction of the side of the main body close to the first avoidance hole is the first direction.

3. The display module according to claim 2, characterized in that: The first side wall includes two first sub-side walls located on both sides of the boss; Along the first direction, an angle between an end surface of the extending portion and the first sub-side wall connected to the end surface is greater than 90 degrees.

4. The display module according to claim 2, characterized in that: The boss further includes a profiling portion, the profiling portion being located on a side of the extension portion away from the first avoidance hole; a vertical projection of the profiling portion on the first side wall overlaps with a vertical projection of a first portion of the first avoidance hole on the first side wall; The shape of the vertical projection of the profiling portion on the backlight surface is the same as the shape of the vertical projection of the first part of the first avoidance hole on the backlight surface; The first portion is a portion of the first avoidance hole close to the first side wall.

5. The display module according to claim 4, characterized in that: The vertical projection of the profiling portion on the first side wall is located within the vertical projection range of the first avoidance hole on the first side wall; The contour of the first avoidance hole is circular, and the edge of the contoured portion away from the first avoidance hole is arc-shaped.

6. The display module according to claim 1, characterized in that: The heat dissipation assembly comprises a heat dissipation layer, a heat conductive layer and an adhesive layer which are stacked; wherein the heat dissipation layer is further away from the display panel than the adhesive layer, and the heat conductive layer is located between the heat dissipation layer and the adhesive layer.

7. The display module according to any one of claims 1 to 6, characterized in that: A vertical projection of the boss on the backlight surface of the display panel is located within the range of the display panel.

8. The display module according to claim 7, characterized in that: The display module also includes: The sealing portion is arranged on a side of the boss away from the main body and at least covers a side wall of the boss away from the main body, and is configured to isolate the side wall of the boss away from the main body from air.

9. The display module according to claim 8, characterized in that: Along the first direction, two ends of the sealing portion are respectively bonded to portions of the first side wall located on two sides of the boss.

10. The display module according to claim 8 or 9, characterized in that: The display module also includes: A cover plate, disposed on a side of the polarizer away from the display panel; an adhesive layer, comprising an adhesive portion and an overflow portion, wherein the adhesive portion is disposed between the polarizer and the cover plate, and the overflow portion extends out of a side wall of the polarizer close to the boss; The sealing portion also covers a portion of the side wall of the display panel close to the boss, a portion of the side wall of the polarizer close to the boss, and at least a portion of the overflow portion, and is bonded to the overflow portion. The vertical projection of the sealing portion on the plane where the cover plate is located is within the range of the cover plate.

11. The display module according to claim 10, characterized in that: The overflow portion includes two first sub-overflow portions, and the two first sub-overflow portions are arranged at intervals along a first direction; Two ends of the sealing portion along the first direction are respectively bonded to the two first sub-overflow portions.

12. The display module according to claim 11, characterized in that: The overflow portion further includes a second sub-overflow portion, the second sub-overflow portion is located between the two first sub-overflow portions and is connected to the two first sub-overflow portions; The sealing glue portion also covers the second sub-overflow portion and is bonded to the second sub-overflow portion.

13. The display module according to claim 10, characterized in that: The display panel comprises a main body and a raised portion; the main body is provided with a second avoidance hole, and a vertical projection of the second avoidance hole on the backlight surface at least partially overlaps with a vertical projection of the first avoidance hole on the backlight surface; a side wall of the main body close to the second avoidance hole is a second side wall, and the raised portion is arranged on the second side wall; a vertical projection of the second avoidance hole on the second side wall is located within the range of a vertical projection of the raised portion on the second side wall; The vertical projections of the polarizer and the adhesive layer on the cover plate overlap with the vertical projection of the display panel on the cover plate.

14. The display module according to claim 1, characterized in that: The functional device is located at a side of the first avoidance hole away from the display panel and abuts against a surface of the heat dissipation component away from the display panel; the display module further includes: The sealant is arranged around the circumference of the functional device and covers the position where the functional device and the heat dissipation component are in contact with each other.

15. A display device, characterized in that: It comprises the display module as claimed in any one of claims 1 to 14.

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