A display device

Abstract

The application provides a display device, comprising a display module, a cover plate and a middle frame, the cover plate covers the display module, the middle frame comprises a first side plate, a second side plate, a third side plate and a fourth side plate which are sequentially connected and located at the outer periphery of the display module, the first side plate is an end plate located at the binding side of the display module, and a first groove is arranged on the side of the first side plate facing the display module; the cover plate comprises a first end portion opposite to the first side plate, and at least part of the first end portion is located in the first groove. Since the first groove can accommodate at least part of the first end portion of the display module, the size of the non-display area on the binding side can be reduced, the need of narrow frame of the display device is met, and the high screen-to-body ratio of the display device is improved.

Description

Technical Field

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

[0002] With the continuous upgrading of display devices, people's demands for high screen-to-body ratios are increasing. To improve the screen-to-body ratio, a narrow bezel design is required, and the key factor restricting the implementation of a narrow bezel design is the border of the bounding area. Therefore, how to achieve a narrow bezel design in the bounding area becomes the key to solving the problem. Summary of the Invention

[0003] The purpose of this application is to provide a display device that reduces the bezel of the binding area, thereby achieving a high screen-to-body ratio. The specific technical solution is as follows:

[0004] This application provides a display device, which includes a display module, a cover plate, and a middle frame. The cover plate covers the display module. The middle frame includes a first side plate, a second side plate, a third side plate, and a fourth side plate located on the outer periphery of the display module and connected in sequence. The first side plate is an end plate located on the binding side of the display module, and a first groove is provided on the side of the first side plate facing the display module. The cover plate includes a first end opposite to the first side plate, and at least a portion of the first end is located in the first groove.

[0005] In some embodiments, the first side plate includes a side end face, which is located above the first groove along a direction away from the display module, and the height of the side end face along the height direction of the display device is greater than or equal to 0.5 mm.

[0006] In some embodiments, the first end abuts against the first groove.

[0007] In some embodiments, the surface of the cover plate away from the display module is provided with a protective layer, and the side of the protective layer abuts against the side end face.

[0008] In some embodiments, the first end portion includes a first mating surface and a mating portion, the first mating surface and the mating portion being arranged sequentially along a direction close to the display module, the mating portion protruding relative to the first mating surface in a direction close to the first groove; the first mating surface abuts against the side end surface, and the mating portion abuts against the first groove.

[0009] In some embodiments, the first groove extends through the first side plate along a first direction, and the mating part is correspondingly disposed with the first groove along the first direction; or, multiple first grooves are spaced apart along the first direction, and the mating part is correspondingly disposed with each of the first grooves; wherein the first direction is the long side direction of the first side plate.

[0010] In some embodiments, the first end includes a second mating surface. Along a direction away from the display module, the second mating surface is located below the mating portion and is recessed relative to the mating portion. Below the first groove is a third mating surface, and the second mating surface abuts against a portion of the third mating surface.

[0011] In some embodiments, the display module includes a display panel, a support member, and a flexible circuit board. The display panel includes a first portion for display supported on one side of the support member, and a second portion located on the back of the support member by bending. The first portion and the second portion are connected by a bending portion. The flexible circuit board is bound to the side of the second portion away from the support member. The first side plate includes a first side portion and a support portion disposed at the bottom inner end of the first side portion. The first side portion and the support portion are vertically arranged and connected, and along the height direction, the top surface of the support portion is lower than the bottom surface of the bending portion.

[0012] In some embodiments, the side end face, the first mating surface, the second mating surface, and the third mating surface are vertical surfaces along the height direction of the display device.

[0013] In some embodiments, the first side portion includes a second groove, the first groove and the second groove are spaced apart by a fourth mating surface, along a direction away from the display module, the second groove is located below the first groove and above the support portion; at least a portion of the bent portion is located within the second groove and along the first direction, the bent portion and the second groove have a preset distance, and the fourth mating surface abuts against a portion of the second mating surface.

[0014] In some embodiments, the second groove has an arc-shaped or U-shaped cross-section along the height direction of the display device.

[0015] In some embodiments, the first distance between the first end and the first side plate is 0.3mm-0.5mm.

[0016] In some embodiments, the first groove is provided with a buffer member adapted to the shape of the first groove, and at least a portion of the first end abuts against the first groove through the buffer member; or, the first groove is provided with an adhesive member adapted to the shape of the first groove, and at least a portion of the first end abuts against the first groove through the adhesive member.

[0017] In some embodiments, the cover plate includes a light-transmitting area and a light-shielding area surrounding the light-transmitting area, the light-transmitting area corresponding to the display area of ​​the display module, and the first end being located on the side of the light-shielding area away from the light-transmitting area.

[0018] In some embodiments, the cover plate includes a second end corresponding to the second side plate, a third end corresponding to the third side plate, and a fourth end corresponding to the fourth side plate, wherein the second end, the third end, and the fourth end are located in the light-shielding area; the second side plate, the third side plate, and the fourth side plate each include a second side portion and a boss protruding from the inner side of the second side portion toward the display module; along the height direction, the top surface of the boss is lower than the top surface of the second side portion of the second side plate, the second side portion of the third side plate, and the second side portion of the fourth side plate; the second end, the third end, and the fourth end are placed on the boss; and the top surface of the boss is equal to the support height of the first groove.

[0019] Beneficial effects of the embodiments in this application:

[0020] The display device provided in this application includes a display module, a cover plate, and a middle frame. The middle frame includes a first side plate, a second side plate, a third side plate, and a fourth side plate located on the outer periphery of the display module and connected in sequence. The first side plate is an end plate located on the bonding side. By providing a first groove on the side of the first side plate facing the display module, the first groove can accommodate at least a portion of the first end of the display module, thereby reducing the size of the non-display area on the bonding side and meeting the need for a narrow bezel. Furthermore, by providing the first groove on the inner side of the first side plate, the size of only a portion of the first side plate can be reduced, thereby reducing the weakening of the support strength of the first side plate and meeting the support strength requirements of the first side plate. In addition, the first groove can also restrict the movement of the cover plate along the height direction of the display device, preventing the cover plate from shifting when fixing the middle frame and the cover plate, and improving the fixing accuracy.

[0021] Of course, implementing any product or method of this application does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other embodiments can be obtained based on these drawings.

[0023] Figure 1 A top view of the display device provided in the embodiments of this application;

[0024] Figure 2 for Figure 1 A cross-sectional view along the AA direction in one embodiment;

[0025] Figure 3 for Figure 1 A cross-sectional view along the AA direction in another embodiment;

[0026] Figure 4 for Figure 3 Dimensioning diagram;

[0027] Figure 5 for Figure 1 Exploded view of the first side plate and cover plate;

[0028] Figure 6 for Figure 5 A cross-sectional view along the CC direction in one embodiment;

[0029] Figure 7 for Figure 5 A cross-sectional view along the DD direction in one embodiment;

[0030] Figure 8 for Figure 1 A cross-sectional view along the AA direction in another embodiment;

[0031] Figure 9 for Figure 1 A cross-sectional view along the AA direction in another embodiment;

[0032] Figure 10 for Figure 9 Dimensioning diagram;

[0033] Figure 11 for Figure 3 The illustrated embodiment shows a schematic diagram of a buffer element disposed within the first groove.

[0034] Figure 12 for Figure 9 The illustrated embodiment shows a schematic diagram of a buffer element disposed within the first groove.

[0035] Figure 13 for Figure 3The illustrated embodiment shows a schematic diagram of the structure in which an adhesive element is disposed within the first groove;

[0036] Figure 14 for Figure 9 The illustrated embodiment shows a schematic diagram of the structure in which an adhesive element is disposed within the first groove;

[0037] Figure 15 for Figure 1 A cross-sectional view along the BB direction in one embodiment;

[0038] Figure 16 for Figure 1 A cross-sectional view along the BB direction in another embodiment.

[0039] The attached figures are labeled as follows:

[0040] Display module 100; display panel 101; first part 1011; bending part 1012; second part 1013; protective adhesive 1014; support member 102; back film 103; cutout part 1031; first adhesive layer 104; flexible circuit board 105; second adhesive layer 106;

[0041] Cover plate 200; light-transmitting area 201; light-shielding area 202; light-shielding layer 2021; first end 203; first mating surface 2031; mating part 2032; second mating surface 2033; second end 204; protective layer 205;

[0042] Mid-frame 300; First side plate 301; First groove 3011; Side end face 3012; Third mating surface 3013; Second groove 3014; Fourth mating surface 3015; Support part 3016; First side part 3017; Second side plate 302; Third side plate 303; Fourth side plate 304; Boss 305; Second side part 306; Third adhesive layer 307;

[0043] Buffer 400;

[0044] 500 adhesive parts;

[0045] Height h; First depth d1; Second depth d2; First distance L1; Preset distance L2; Height direction H; First direction X. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art based on this application are within the scope of protection of this application.

[0047] With the continuous upgrading of display devices, people's demands for high screen-to-body ratios are increasing. To improve the screen-to-body ratio, besides improving the layout of the display area, it is even more important to reduce the size of the non-display area. To increase the screen-to-body ratio, a narrow bezel design is needed, and the main constraint on narrow bezels is the border of the mounting area. Therefore, how to achieve a narrow bezel in the mounting area becomes the key to solving the problem. To reduce the size of the non-display area, one approach is to reduce the size of the middle frame 300, and another is to improve the structure of the middle frame 300. However, simply reducing the size can achieve the effect of increasing the screen-to-body ratio, but it may lead to poor fixation or excessive weakening of the support strength of the middle frame 300. Therefore, a new solution is urgently needed that can both satisfy the fixation effect between the middle frame 300 and the display module 100 and ensure the support strength of the middle frame 300.

[0048] Therefore, this application provides a display device, which can be a mobile terminal such as a mobile phone, tablet computer, wearable device, in-vehicle device, augmented reality (AR) / virtual reality (VR) device, laptop computer, ultra-mobile personal computer (UMPC), netbook, personal digital assistant (PDA), etc., or it can be a professional shooting device such as a digital camera, SLR camera / mirrorless camera, action camera, gimbal camera, drone, etc. This application does not limit the specific type of display device. For ease of understanding, the following description uses a mobile phone as the display device.

[0049] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a display device provided in one embodiment of this application, wherein... Figure 1 The display device is illustrated using a mobile phone as an example. For ease of understanding, a three-dimensional coordinate system is established with the height H of the display device as the Z-axis, the shorter side of the display device as the X-axis, and the longer side of the display device as the Y-axis. Combined with... Figure 1 , Figure 2 and Figure 3As shown, the display device includes a display module 100, a cover plate 200, and a middle frame 300. The cover plate 200 covers the display module 100. The middle frame 300 includes a first side plate 301, a second side plate 302, a third side plate 303, and a fourth side plate 304 located on the outer periphery of the display module 100 and connected in sequence. The first side plate 301 is an end plate located on the bonding side of the display module 100. The bonding side refers to the side where the display panel is bonded to the flexible circuit board 105. The first side plate 301 has a first groove 3011 on the side facing the display module 100. The cover plate 200 includes a first end 203 opposite to the first side plate 301. At least a portion of the first end 203 is located in the first groove 3011. In this embodiment, a first groove 3011 is provided on the side of the first side plate 301 facing the display module 100. The first groove 3011 can accommodate at least a portion of the first end portion 203 of the display module 100, which can reduce the size of the non-display area on the bonding side and meet the need for a narrow bezel. Furthermore, by providing the first groove 3011 on the inner side of the first side plate 301, the size of only a portion of the first side plate 301 can be reduced, thereby reducing the weakening of the support strength of the first side plate 301 and meeting the support strength requirements of the first side plate 301. In addition, since at least a portion of the first end portion 203 is located within the first groove 3011, it can also restrict the movement of the cover plate 200 along the height direction H of the display device. When fixing the middle frame 300 and the cover plate 200, it can prevent the cover plate 200 from shifting and improve the fixing accuracy.

[0050] In this embodiment, the middle frame 300, in addition to fixing the cover plate 200, also protects other components of the display device. The cover plate 200 covers the outside of the display module 100, protecting it. The display module 100 can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED), a flexible light-emitting diode (FLED), a quantum dot light-emitting diode (QLED), etc.

[0051] In some embodiments, reference Figure 3 and Figure 4The first side plate 301 includes a side end face 3012. Along the direction away from the display module 100, the side end face 3012 is located above the first groove 3011. The height h of the side end face 3012 along the height direction H of the display device is greater than or equal to 0.5mm. For example, the height h of the side end face 3012 along the height direction H can be 0.5mm, 0.6mm, 0.7mm, etc.

[0052] The height h of the side end face 3012 is the distance between the first groove 3011 and the upper surface of the first side plate 301. This distance is greater than or equal to 0.5 mm, meaning that the thickness of the portion of the first side plate 301 above the first groove 3011 is greater than or equal to 0.5 mm. This ensures that the surface of the first side plate 301 has sufficient strength and is not easily damaged. The upper surface refers to the surface of the first side plate 301 that is on the same side as the cover plate 200 along the height direction H.

[0053] Of course, considering the need for thinner and lighter display devices, the height h of the side end face 3012 along the height direction H is generally less than or equal to 1mm.

[0054] In some embodiments, such as Figure 2 The first end 203 abuts against the first groove 3011.

[0055] In this embodiment, the first end 203 of the cover plate 200 directly abuts against the first groove 3011, without requiring structural changes to the cover plate 200, thus simplifying its design. Furthermore, this abutting fit further reduces the possibility of the cover plate 200 wobbling after being installed in the first groove 3011, and also helps to reduce the width of the display device's bezel.

[0056] The first end 203 of the cover plate 200 is placed in the first groove 3011. Compared with the stepped middle frame 300, the first side plate 301 does not need to be provided with a step facing the cover plate 200. The distance between the display module 100 and the inner side of the first side plate 301 is generally 0.5mm, which can reduce the distance from the display area of ​​the display module 100 to the outer side of the first side plate 301, thereby reducing the bezel of the display device. In addition, the first end 203 is placed in the first groove 3011. The side walls (two walls along the height direction H) of the first groove 3011 can limit the displacement of the cover plate 200 along the height direction H. The bottom wall (the wall connecting the two side walls) of the first groove 3011 can also limit the displacement of the cover plate 200 along the extension direction of the first groove 3011, so that the cover plate 200 can be firmly fixed on the middle frame 300.

[0057] In the case where the first end 203 of the cover plate 200 directly mates with the first groove 3011, there is a certain height difference between the upper surface of the cover plate 200 and the upper surface of the first side plate 301. To compensate for this height difference, a protective layer 205 is provided on the surface of the cover plate 200 away from the display module 100. The side of the protective layer 205 abuts against the side end face 3012. Figure 2 As shown. The protective layer 205 not only compensates for the height difference, making the upper surface of the display device smoother and increasing its aesthetics, but also protects the cover plate 200, thereby extending the service life of the display device.

[0058] Alternatively, the material of the protective layer 205 can be glass, TPU (Thermoplastic polyurethanes), PE (Polyethylene), PET (Polyethylene terephthalate), PVC (Polyvinyl chloride), etc.

[0059] Unlike the case where the first end 203 of the cover plate 200 directly abuts against the first groove 3011, in other embodiments, such as Figure 3 As shown, the first end 203 includes a first mating surface 2031 and a mating portion 2032. The first mating surface 2031 and the mating portion 2032 are arranged sequentially along the direction close to the display module 100. The mating portion 2032 protrudes relative to the first mating surface 2031 in the direction close to the first groove 3011. The first mating surface 2031 abuts against the side end surface 3012, and the mating portion 2032 abuts against the first groove 3011.

[0060] In this embodiment, the first end 203 includes a first mating surface 2031 that abuts against the side end face 3012. By abutting against the side end face 3012 and the first mating surface 2031, the height difference between the first side plate 301 and the cover plate 200 can be compensated, making the surface of the display device flatter. On the other hand, the cover plate 200 and the first side plate 301 are tightly fitted, further limiting the shaking of the cover plate 200, reducing the width of the frame of the display device, and preventing moisture from entering the interior of the cover plate 200. The first end 203 also includes a mating part 2032 that mates with the first groove 3011. The mating part 2032 abuts against the first groove 3011, which is beneficial for the narrow bezel design of the display device and can limit the shaking of the cover plate 200 after installation. Specifically, the side wall of the first groove 3011 can limit the displacement of the cover plate 200 along the height direction H, and the bottom wall of the first groove 3011 can also limit the displacement of the cover plate 200 along the extension direction of the first groove 3011, so that the cover plate 200 can be firmly fixed on the middle frame 300.

[0061] Since the first end 203 of the cover plate 200 is generally arranged in an arc shape with gradually decreasing thickness, in order to make the first groove 3011 better fit with the first end 203 or the mating part 2032, the side wall of the first groove 3011 is inclined in the direction away from the bottom wall and in the direction that increases the opening area of ​​the first groove 3011.

[0062] In some embodiments, the first groove 3011 extends through the first side plate 301 along the first direction X, and the mating part 2032 is correspondingly disposed with the first groove 3011 along the first direction X, wherein the first direction X is the direction of the long side of the first side plate 301, that is, the X-axis direction.

[0063] In this embodiment, a first groove 3011 is provided, which is a through groove, and a corresponding mating part 2032 is also provided, which can simplify the structure of the first side plate 301 and the cover plate 200.

[0064] Since the cover plate 200 only includes one mating part 2032, it is only necessary to etch the upper part of the first end 203 of the cover plate 200 to form the first mating surface 2031 by etching. That is, the first mating surface 2031 is recessed relative to the mating part 2032, thereby forming the first mating surface 2031 and the mating part 2032 of the first end 203.

[0065] In other embodiments, such as Figure 5 , Figure 6 and Figure 7 As shown, the first groove 3011 is provided with multiple grooves at intervals along the first direction X, and the mating part 2032 is provided in a one-to-one correspondence with the first groove 3011, wherein the first direction X is the long side direction of the first side plate 301.

[0066] In this embodiment, there are multiple first grooves 3011 and multiple mating parts 2032 that cooperate with them. The two cooperate with each other to improve the fixing stability between the cover plate 200 and the middle frame 300. In addition, the first grooves 3011 are no longer through slots that pass through the first side plate 301, which reduces the volume of the first side plate 301 that is removed and can also improve the overall strength of the first side plate 301.

[0067] In some embodiments, such as Figure 8 As shown, the first end 203 includes a second mating surface 2033. Along the direction away from the display module 100, the second mating surface 2033 is located below the mating portion 2032, and the second mating surface 2033 is recessed relative to the mating portion 2032. Below the first groove 3011 is a third mating surface 3013, and the second mating surface 2033 abuts against a portion of the third mating surface 3013.

[0068] In this embodiment, the mating portion 2032 is located in the middle of the first end portion 203, and the first mating surface 2031 and the third mating surface 3013 are located on the upper and lower sides of the mating portion 2032, respectively. By placing the mating portion 2032 in the middle of the first end portion 203, the size of the mating portion 2032 is reduced. Therefore, the size of the first groove 3011 that mates with the mating portion 2032 is also reduced, thereby reducing the volume of the first side plate 301 that is cut out and improving the overall strength of the first side plate 301.

[0069] Optionally, the first mating surface 2031 and the second mating surface 2033 are equidistant from the mating portion 2032, thereby further reducing the width of the bezel of the display device.

[0070] In some embodiments, such as Figure 6 , Figure 7 and Figure 8 As shown, the display module 100 includes a display panel 101, a support member 102, and a flexible circuit board 105. The display panel 101 includes a first portion 1011 for display, supported on one side of the support member 102, and a second portion 1013 located on the back of the support member 102 by bending. The first portion 1011 and the second portion 1013 are connected by a bending portion 1012. The flexible circuit board 105 is bound to the side of the second portion 1013 away from the support member 102. The first side plate 301 includes a first side portion 3017 and a support portion 3016 disposed at the bottom inner end of the first side portion 3017. The first side portion 3017 and the support portion 3016 are vertically arranged and connected, and along the height direction H, the top surface of the support portion 3016 is lower than the bottom surface of the bending portion 1012. The top surface of the support portion 3016 refers to the surface where the highest position along the height direction H is located, and the bottom surface of the bending portion 1012 refers to the surface where the lowest position along the height direction H is located.

[0071] In this embodiment, a support portion 3016 is provided at the bottom of the first side portion 3017. The support portion 3016 avoids the bending portion 1012, preventing damage to the bending portion 1012. Furthermore, the avoidance by the support portion 3016 also helps to reduce the bezel of the display device. In addition, the support portion 3016 can provide simple support for other components of the display module 100, and can increase the area of ​​the middle frame 300 for arranging components and increase the overall strength of the middle frame 300.

[0072] In some embodiments, such as Figure 9 and Figure 10 As shown, the first side portion 3017 includes a second groove 3014. The first groove 3011 and the second groove 3014 are spaced apart by a fourth mating surface 3015. Along the direction away from the display module 100, the second groove 3014 is located below the first groove 3011 and above the support portion 3016. At least a portion of the bent portion 1012 is located within the second groove 3014, and there is a predetermined distance L2 between the surface of the bent portion 1012 and the surface of the second groove 3014. The fourth mating surface 3015 engages with a portion of the second mating surface 2033.

[0073] In this embodiment, the first side portion 3017 includes a second groove 3014. The bent portion 1012 of the display panel 101 is at least partially located in the second groove 3014, and there is a preset distance L2 between the two. That is, the bent portion 1012 and the second groove 3014 do not contact each other, so as to avoid damage to the display panel 101.

[0074] The bent portion 1012 is at least partially located within the second groove 3014, such that at least a portion of the bent portion 1012 is placed in the first side plate 301, thereby further reducing the distance from the display area to the inner edge of the first side plate 301, where the inner edge refers to the side closer to the display module 100, thus enabling a reduction in the width of the bezel of the display device.

[0075] It should be noted that when the first side plate 301 is composed of a first side portion 3017 and a support portion 3016, the first groove 3011 and the second groove 3014 are both located on the side of the first side portion 3017 facing the display module 100. Of course, the first side plate 301 can also be composed only of the first side portion 3017, that is, excluding the support portion 3016 located at the bottom of the first side portion 3017.

[0076] Among them, such as Figure 10As shown, the second groove 3014 has a first depth d1 that is perpendicular to the first direction X and the height direction H that is greater than 0.5 mm, and the second groove 3014 has a second depth d2 that is greater than 0.5 mm in the height direction H. The second groove 3014 and the bent part 1012 form an assembly relationship when assembled.

[0077] Optionally, the preset distance L2 is 0.3mm-0.6mm, and preferably, the preset distance L2 is 0.5mm.

[0078] Please note that you should refer back to the reference section. Figure 4 When the second groove 3014 is not provided, there is also a gap between the bent portion 1012 and the third mating surface 3013 of the first side plate 301. This gap is equal to the preset distance L2 between the bent portion 1012 and the second groove 3014. That is, the first distance L1 between the first end portion 203 and the first side plate 301 is 0.3mm-0.6mm, for example, it can be 0.3mm, 0.4mm, 0.5mm, 0.6mm, etc. This first distance L1 ensures that the first end portion 203 does not contact the first side plate 301, thus avoiding damage to the display panel 101 of the first end portion 203.

[0079] To protect the bent portion 1012 of the display panel 101, a protective adhesive 1014 is provided on the outer surface of the bent portion 1012. The protective adhesive 1014 is MCL (Micro Coating Layer) adhesive. It is mainly used to protect the bent portion 1012 of the display panel 101 to prevent environmental factors such as moisture, oxygen and temperature changes from damaging the display panel 101.

[0080] like Figures 2-4 , Figure 8 , Figure 9As shown, the display panel 101 can be a flexible display panel 101. The side of the first portion 1011 of the flexible display panel 101 away from the support member 102 is used to display images. The support member 102 is used to support the first portion 1011 and the second portion 1013 of the flexible display panel 101. Specifically, the support member 102 can be made of carbon fiber material or metal material. A back film 103 is also provided between the support member 102 and the display panel 101. The back film 103 is a conductive film used to transfer static electricity generated by the display panel 101. To reduce the difficulty of bending the display panel 101, the back film 103 has a cutout 1031 in the area corresponding to the bending portion 1012. That is, the back film 103 is missing at the cutout 1031, and only the display panel 101 is continuously arranged. The bent back film 103 is bonded to the support member 102 by a first adhesive layer 104 to fix the second portion 1013. For example, the first adhesive layer 104 can be PET glue, etc. The flexible display panel 101 and the cover plate 200 can be bonded and fixed together by a second adhesive layer 106. The second adhesive layer 106 is a transparent adhesive layer, such as TOCA (Silicone Sheet Adhesive).

[0081] In some embodiments, such as Figures 2-4 , Figure 8 , Figure 9 As shown, the side end surface 3012, the first mating surface 2031, the second mating surface 2033, and the third mating surface 3013 are vertical surfaces along the height direction H of the display device.

[0082] In this embodiment, both surfaces that cooperate with each other are vertical, so that the middle frame 300 does not need to be made into an irregular shape, simplifying the manufacturing difficulty of the middle frame 300.

[0083] In some embodiments, such as Figure 9 As shown, the second groove 3014 has an arc-shaped or U-shaped cross-section along the height direction H of the display device. The arc-shaped or U-shaped second groove 3014 is more in line with the shape of the bending portion 1012, which can reduce the volume of the second groove 3014 being hollowed out and reduce the risk of scratching the bending portion 1012.

[0084] In some embodiments, such as Figure 11 and Figure 12 As shown, a buffer 400 adapted to the shape of the first groove 3011 is provided in the first groove 3011, and at least a portion of the first end 203 abuts against the first groove 3011 through the buffer 400.

[0085] By setting a buffer 400, which can be a buffer foam, such as polyurethane foam, the impact on the display device when it is dropped can be absorbed by the foam, thereby reducing the risk of the cover plate 200 breaking.

[0086] Alternatively, in some embodiments, such as Figure 13 and Figure 14 As shown, the first groove 3011 is provided with an adhesive member that is adapted to the shape of the first groove 3011, and at least a portion of the first end 203 abuts against the first groove 3011 through the adhesive member.

[0087] In this embodiment, the adhesive 500 can be formed by curing an adhesive, which bonds and fixes the cover plate 200 to the first side plate 301 during the curing process. The adhesive can be acrylic, polyurethane, silicone, epoxy resin, etc. After bonding and fixing, moisture, dust, foreign objects, corrosive liquids, etc., can be prevented from entering the display device through the gap between the mating surfaces of the first side plate 301 and the cover plate 200. Simultaneously, the adhesive can restrict the displacement of the cover plate 200 along the first direction X, reducing the risk of the cover plate 200 breaking during a drop.

[0088] In the above embodiments, the cover plate 200 includes a light-transmitting area 201 and a light-shielding area 202 surrounding the light-transmitting area 201. The light-transmitting area 201 corresponds to the display area of ​​the display module 100, and the first end 203 is located on the side of the light-shielding area 202 away from the light-transmitting area 201.

[0089] In this embodiment, the cover plate 200 should be a transparent cover plate 200, such as a transparent glass cover plate 200, or other transparent materials that can provide protection. Since the edge of the display device is a non-display area, in order to maintain the uniformity of black at the edge, the portion of the cover plate 200 corresponding to the non-display area is a light-shielding area 202. The light-shielding area 202 can be provided with a light-shielding layer 2021 on the side of the cover plate 200 near the display module 100 to prevent light leakage at the edge of the cover plate 200. The light-shielding layer 2021 can be black ink or other light-shielding materials. Since the first end 203 is placed in the first groove 3011 and is shielded by the cover plate 200, the first end 203 does not need to be provided with a light-shielding layer 2021. Of course, to simplify the process, the first end 203 can also be provided with a light-shielding layer 2021 together with the light-shielding area 202.

[0090] In some embodiments, the cover plate 200 includes a second end 204 corresponding to the second side plate 302, a third end corresponding to the third side plate 303, and a fourth end corresponding to the fourth side plate 304, wherein the second end 204, the third end, and the fourth end are located in the light-shielding area 202, such as Figure 15 and Figure 16The second end 204 is illustrated as an example. The third and fourth ends have basically the same structure as the second end 204. The second side plate 302, third side plate 303, and fourth side plate 304 each include a second side portion 306 and a boss 305 protruding from the inner side of the second side portion 306 toward the display module 100. Along the height direction H, the top surface of the boss 305 is lower than the top surface of the second side portion 306 of the second side plate 302, the second side portion 306 of the third side plate 303, and the second side portion 306 of the fourth side plate 304. The second end 204, third end, and fourth end are placed on the boss 305, and the top surface of the boss 305 is at the same support height as the first groove 3011. Here, the top surface refers to the surface where the highest point of the boss 305 and the second side portion 306 of each side plate is located along the height direction H.

[0091] In this embodiment, for the remaining side panels of the middle frame 300, namely the second side panel 302, the third side panel 303, and the fourth side panel 304, the inner side of the second side portion 306 does not need to be provided with a groove, but instead has a boss 305. The second end 204, the third end, and the fourth end directly rest on the boss 305. At least a portion of the first end 203 mates with the first groove 3011, and the other three ends rest on the boss 305 to keep the cover plate 200 horizontal. It should be noted that the boss 305 can be provided from the bottom of the second side portion 306 and extend to a position equal to the support height of the first groove 3011 of the first side portion 3017. The second end 204, the third end, and the fourth end can be bonded to the boss 305 through a third adhesive layer 307, thereby firmly fixing the cover plate 200 to the middle frame 300, wherein the third adhesive layer 307 can be an adhesive. In addition, the adhesive can prevent moisture, dust, foreign objects, corrosive liquids, etc. from entering the display device through the gap between the frame 300 and the cover plate 200.

[0092] Optionally, the frame 300 can be made of metal (such as aluminum alloy, titanium alloy, or stainless steel) or plastic, such as high-strength plastics like polycarbonate.

[0093] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0094] The various embodiments in this specification are described in a related manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0095] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A display device, characterized in that, The display device includes a display module, a cover plate, and a middle frame. The cover plate covers the display module. The middle frame includes a first side plate, a second side plate, a third side plate, and a fourth side plate located on the outer periphery of the display module and connected in sequence. The first side plate is an end plate located on the binding side of the display module. On the side of the first side plate facing the display module, a first groove is provided along a first direction that is the long side direction of the first side plate. The cover plate includes a first end opposite to the first side plate, at least a portion of which is located within the first groove; The first side plate includes a side end face that serves as a vertical surface along the height direction of the display device. The side end face is located above the first groove in a direction away from the display module. The side end face abuts against the side of a protective layer on a surface away from the display module, or the side end face abuts against a first mating surface of the first end. The first end includes a first mating surface and a mating portion. The first mating surface and the mating portion are arranged sequentially in a direction close to the display module. The mating portion protrudes relative to the first mating surface in a direction close to the first groove.

2. The display device according to claim 1, characterized in that, The height of the side end face along the height direction of the display device is greater than or equal to 0.5 mm.

3. The display device according to claim 1, characterized in that, The first groove extends through the first side plate along a first direction, and the mating part is provided corresponding to the first groove along the first direction; Alternatively, the first groove may be provided in multiple spaces along the first direction, and the mating part may be provided in a one-to-one correspondence with the first groove.

4. The display device according to claim 1, characterized in that, The first end includes a second mating surface. Along a direction away from the display module, the second mating surface is located below the mating portion, and the second mating surface is recessed relative to the mating portion. Below the first groove is a third mating surface, and the second mating surface abuts against a portion of the third mating surface.

5. The display device according to claim 4, characterized in that, The display module includes a display panel, a support member, and a flexible circuit board. The display panel includes a first part for display supported on one side of the support member, and a second part located on the back of the support member by bending. The first part and the second part are connected by a bending portion. The flexible circuit board is bound to the side of the second part away from the support member. The first side plate includes a first side portion and a support portion disposed at the bottom inner end of the first side portion. The first side portion and the support portion are vertically arranged and connected, and along the height direction, the top surface of the support portion is lower than the bottom surface of the bent portion.

6. The display device according to claim 4, characterized in that, The side end face, the first mating surface, the second mating surface, and the third mating surface are vertical surfaces along the height direction of the display device.

7. The display device according to claim 5, characterized in that, The first side portion includes a second groove, the first groove and the second groove are spaced apart by a fourth mating surface, along a direction away from the display module, the second groove is located below the first groove and above the support portion; At least a portion of the bent portion is located within the second groove, and along the first direction, there is a predetermined distance between the bent portion and the second groove, and the fourth mating surface abuts against a portion of the second mating surface.

8. The display device according to claim 7, characterized in that, The second groove has an arc-shaped or U-shaped cross-section along the height direction of the display device.

9. The display device according to any one of claims 1-4, characterized in that, The first distance between the first end and the first side plate is 0.3mm-0.5mm.

10. The display device according to any one of claims 1-8, characterized in that, The first groove is provided with a buffer element adapted to the shape of the first groove, and at least a portion of the first end abuts against the first groove through the buffer element; or, The first groove is provided with an adhesive member that is adapted to the shape of the first groove, and at least a portion of the first end abuts against the first groove through the adhesive member.

11. The display device according to any one of claims 1-8, characterized in that, The cover plate includes a light-transmitting area and a light-shielding area surrounding the light-transmitting area. The light-transmitting area corresponds to the display area of ​​the display module, and the first end is located on the side of the light-shielding area away from the light-transmitting area.

12. The display device according to claim 11, characterized in that, The cover plate includes a second end corresponding to the second side plate, a third end corresponding to the third side plate, and a fourth end corresponding to the fourth side plate, wherein the second end, the third end, and the fourth end are located in the light-shielding area; The second side plate, the third side plate, and the fourth side plate each include a second side portion and a boss protruding from the inner side of the second side portion toward the display module. Along the height direction, the top surface of the boss is lower than the top surface of the second side portion of the second side plate, the second side portion of the third side plate, and the second side portion of the fourth side plate. The second end portion, the third end portion, and the fourth end portion are placed on the boss. The top surface of the boss is equal to the support height of the first groove.

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