Display module and display device

Abstract

The present application relates to the field of display technology, and more specifically, to a display module and a display device. The display module comprises: a back plate, comprising a bottom plate and a side frame arranged on the bottom plate; a display assembly, located in the side frame, and comprising a light source; a support member, located on the side of the side frame away from the bottom plate, and the support member is detachably connected to the side frame; a cover plate, located on the side of the support member away from the side frame, and the cover plate is bonded to the support member. This solution can solve the problem of the module being difficult to disassemble, thereby reducing maintenance costs.

Description

Technical Field

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

[0002] With the rapid development of liquid crystal display technology, liquid crystal display modules are increasingly used in various technical fields, for example, they can be used in display devices such as televisions and car instruments. The liquid crystal display module is the main part of the display, including structures such as the frame, liquid crystal panel and backlight. In traditional display modules, the cover plate on the liquid crystal panel is fixed to the frame, making the entire module difficult to disassemble.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0004] The purpose of the present application is to provide a display module and a display device to solve the problem that the module is difficult to disassemble, so as to reduce the maintenance cost.

[0005] In a first aspect, the present application provides a display module, which includes:

[0006] A back plate, comprising a bottom plate and side frames arranged on the bottom plate;

[0007] A display component is located in the side frame, and the display component includes a display panel;

[0008] A support member, located at a side of the side frame away from the bottom plate, the support member being detachably connected to the side frame;

[0009] The cover plate is located on a side of the support member away from the side frame, and the cover plate is bonded to the support member.

[0010] In an exemplary embodiment of the present application,

[0011] The side frame includes an extension portion arranged outward, and the support member is detachably connected to the extension portion.

[0012] In an exemplary embodiment of the present application,

[0013] The support member is connected to the extension portion by bolts.

[0014] In an exemplary embodiment of the present application,

[0015] A first mounting hole is provided on a surface of the extension portion opposite to the support member, and a second mounting hole is provided on a surface of the support member opposite to the extension portion. Bolts pass through the first mounting hole and the second mounting hole respectively to connect the extension portion to the support member.

[0016] In an exemplary embodiment of the present application,

[0017] A protrusion is provided on the surface of the extension portion opposite to the support member, and the support member is provided with a groove matching the protrusion. The protrusion is provided with a third mounting hole along the direction toward the display component, and a fourth mounting hole is provided on the outer surface of the support member. Bolts pass through the fourth mounting hole and the third mounting hole respectively to connect the support member to the protrusion.

[0018] In an exemplary embodiment of the present application,

[0019] The display module further comprises a circuit board, which is arranged on a side of the bottom plate away from the display assembly, and the circuit board is connected to the display assembly via at least one flexible conductive member.

[0020] In an exemplary embodiment of the present application,

[0021] The extension portion is provided with a first avoidance groove, and the support member is provided with a second avoidance groove. The opening of the first avoidance groove faces the outer side of the extension portion, and the opening of the second avoidance groove faces the inner side of the support member.

[0022] In an exemplary embodiment of the present application,

[0023] The display module is curved.

[0024] In an exemplary embodiment of the present application,

[0025] The display panel is connected to the cover plate via a first adhesive layer, and the cover plate is connected to the support member via a second adhesive layer.

[0026] In an exemplary embodiment of the present application,

[0027] The display assembly includes a touch panel, and the touch panel is located between the display panel and the cover plate, and is bonded to the display panel and the cover plate respectively.

[0028] In an exemplary embodiment of the present application,

[0029] The first adhesive layer is a liquid colloid.

[0030] In an exemplary embodiment of the present application,

[0031] The second adhesive layer includes a first adhesive portion and a second adhesive portion, the first adhesive portion includes a solid colloid, wherein the first adhesive portion includes a first solid glue and a second solid glue, and the first solid glue, the second solid glue, the cover plate and the support member form a receiving cavity;

[0032] The second adhesive portion includes a liquid colloid, and the second adhesive portion is filled in the accommodating cavity.

[0033] A second aspect of the present application provides a display device, which includes the display module described in any one of the above items.

[0034] The technical solution provided by the present application can achieve the following beneficial effects: by adding a three-layer structure formed by a support member between the cover plate and the side frame, the cover plate and the support member are bonded to ensure the strength of the cover plate and the original assembly process remains unchanged, the support member and the side frame are detachably connected, shielding the influence of frequent disassembly on the upper glass cover plate 13, and ensuring the separation of the cover plate 13 and the back plate 10, so as to facilitate the disassembly and repair of the display component 11 in the accommodating space after a failure.

[0035] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 A schematic cross-sectional structure diagram of a display module according to an embodiment of the present application is shown;

[0038] Figure 2 A schematic cross-sectional structure diagram of a display module according to another embodiment of the present application is shown;

[0039] Figure 3 A schematic diagram of a bolt connection structure of a display module according to an embodiment of the present application is shown;

[0040] Figure 4 A schematic diagram of a bolt connection structure of a display module according to another embodiment of the present application is shown;

[0041] Figure 5 A schematic diagram of circuit board connection of a display module according to an embodiment of the present application is shown;

[0042] Figure 6An assembly diagram of components of a display module according to an embodiment of the present application is shown;

[0043] Figure 7 A schematic cross-sectional structure diagram of a display module in a bent state according to an embodiment of the present application is shown;

[0044] Figure 8 A schematic cross-sectional structure diagram of a display module in a bent state according to another embodiment of the present application is shown;

[0045] Fig. 9 A partial enlarged view of the bonding portion of the display module described in an embodiment of the present application is shown.

[0046] Reference numerals:

[0047] 1. Display module; 10. Back plate; 101. Bottom plate; 102. Side frame; 1021. Extension; 1021a. First mounting hole; 1022. Side wall; 1023. Protrusion; 1023b. Third mounting hole; 1024. First avoidance groove; 11. Display assembly; 110. Backlight assembly; 1101. Light source; 1102. Optical film material; 1103. Upper glue frame; 1104. Foam; 1105. Lower glue frame; 111, display panel; 112, touch panel; 12, support member; 12a, second mounting hole; 12b, fourth mounting hole; 121, second avoidance groove; 13, cover plate; 14, bolt; 15, flexible conductive member; 16, circuit board; 180, first adhesive layer; 181, second adhesive layer; 1811, first adhesive portion; 1811a, first solid glue; 1811b, second solid glue; 1812, second adhesive portion; DETAILED DESCRIPTION

[0048] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0049] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of the illustration to another component, these terms are used in this specification only for convenience, such as according to the orientation of the examples described in the drawings. It is understood that if the device of the illustration is turned upside down, the component described as "upper" will become the component "lower". When a structure is "on" other structures, it may mean that the structure is formed integrally on the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

[0050] The present application embodiment provides a display module 1, such as Figure 1 As shown, the display module 1 may include a back plate 10, a display assembly 11, a support member 12, and a cover plate 13; wherein:

[0051] The back panel 10 includes a bottom panel 101 and a side frame 102 disposed on the bottom panel. The side frame 102 can be disposed at the edge of the bottom panel 101. It should be understood that the side frame 102 is annular and can enclose a receiving space with the bottom panel 101.

[0052] Optionally, the back plate 10 can be made of metal materials such as aluminum plates to ensure the structural strength of the back plate 10, but is not limited thereto and can also be made of other materials. When the back plate 10 is made of metal materials, the metal materials can be processed by die casting process to form the back plate 10.

[0053] The support member 12 is an annular structure, located on the side of the side frame 102 away from the bottom plate 101, and the support member 12 is detachably connected to the side frame 102. Optionally, the support member 12 can be made of metal materials such as aluminum plates to ensure its structural strength, but is not limited to this, and can also be made of other materials. The material of the support member 12 can be the same as or different from the material of the back plate 10. When the support member 12 is made of metal material, the metal material can be processed by a die-casting process to form the support member 12.

[0054] The annular structure of the support member 12 can be the same as the annular structure of the side frame 102, that is, the projections of the support member 12 and the side frame 102 perpendicular to the bottom plate 101 are the same. This annular structure can be a rectangular ring, a circular ring, or a special-shaped ring, which is not limited here. It can be understood that the support member 12 is located above the side frame 102, which can increase the height of the accommodation space formed by the side frame 102 and the bottom plate 101.

[0055] It should be understood that a detachable connection refers to a connection method that can be repeatedly disassembled and assembled and causes less damage to the connection structure, such as bolt connection, key connection, pin connection, and snap connection, etc. Optionally, the detachable connection method used in this application can be one or more combinations of the above connection methods. The corresponding non-detachable connection can include riveting, welding, bonding, etc.

[0056] The display assembly 11 is located inside the side frame 102 and is disposed on the bottom plate 101. The display assembly 11 also includes a light source. Figure 1 As shown, for the side frame 102, the direction close to the center of the bottom plate 101 is the inner side, which is the "inside" indicated by the arrow in the figure, and the direction away from the center of the bottom plate 101 is the outer side, which is the "outside" direction indicated by the arrow in the figure. It should be understood that the display component 11 is installed in the accommodation space formed by the back plate 10 and the support member 12. This display component 11 may include a display panel 111. The display panel 111 may be a liquid crystal display, but is not limited to this. The display component 11 not only has a display function, but also has a touch function. The display component 11 with a touch function may include a touch panel 112, or may not include a touch panel 112 (for example, an In-Cell structure). It should be understood that when the display panel 111 is a liquid crystal display, this display component 11 may also include a backlight component 110 to provide a light source. The backlight component 110 may be installed on the bottom plate 101 and is located on the side of the display panel 111 facing the bottom plate 101. This backlight component 110 may be a direct-down backlight structure. As shown in FIG. Figure 1 As shown, the backlight assembly 110 of the direct backlight structure may include a light source 1101, an optical film material 1102, a lower plastic frame 1105, an upper plastic frame 1103, and foam 1104. The optical film material 1102 may include a light guide plate, a diffuser, a prism sheet, and other film materials. It should be noted that Figure 1 The display assembly 11 shown in the figure is only a schematic diagram, and the component composition and shape structure thereof are not limited thereto and will not be described in detail here.

[0057] The cover plate 13 is located on the side of the support member 12 away from the side frame 102, and the cover plate 13 is bonded to the support member 12. It can be understood that the cover plate 13 covers the support member 12 and can close the accommodation space formed by the support member 12 and the back plate 10. The cover plate 13 and the support member 12 can be bonded by an adhesive ( Figure 1 The bonding material may include at least one of a liquid colloid or a solid colloid.

[0058] Optionally, the cover plate 13 may be made of a transparent glass material, that is, the cover plate 13 may be a transparent glass plate, but is not limited thereto, and may also be made of other transparent materials.

[0059] Since the cover plate 13 is mostly made of glass and other materials, the structural strength is not high. If it is directly combined with the side frame 102 to form a detachable combination, the processing technology is difficult and it is easy to cause damage to the cover plate 13. The present application adds a three-layer structure formed by a support member 12 between the cover plate 13 and the side frame 102, and bonds the cover plate 13 to the support member 12, thereby ensuring that the strength of the cover plate and the original assembly process remain unchanged. The support member 12 is detachably connected to the side frame 102, shielding the impact of frequent disassembly on the upper glass cover plate 13, and ensuring the separation of the cover plate 13 and the back plate 10, which is convenient for the repair of the display component 11 in the accommodation space after failure. In particular, in order to meet the demand for high contrast, the backlight source of the display module is increasingly using mini-light emitting diodes (Mini-Led), but this type of light source is relatively expensive and has a high failure rate. Through the design of the present application, the cost of disassembly and repair after the failure of the lamp beads can be greatly reduced.

[0060] In one embodiment, if Figure 2 As shown, the side frame 102 includes an extension 1021 arranged outward, and the support member 12 is detachably connected to the extension 1021. This side frame 102 may include an extension 1021 and a side wall 1022, the side wall 1022 and the bottom plate 101 form a receiving space, and the extension 1021 is in full contact with the support member 12, and is used to receive the support member 12 and the cover plate 13. Since the receiving space needs to accommodate multiple components of the display assembly 11, the side frame 102 needs a certain thickness in a direction perpendicular to the bottom plate 101; on the other hand, in order to ensure that the side frame 102, the support member 12 and the cover plate 13 can be fully in contact, thereby ensuring sufficient connection strength, the side frame 102 also needs to have sufficient width in a direction parallel to the bottom plate 101, which results in a larger volume of the side frame 102. By setting the side frame 102 as the extension 1021 and the side wall 1022, while ensuring the connection strength and sufficient receiving space, the volume of the side frame 102 is reduced, saving materials. It should be understood that the extension 1021 has a smaller thickness in a direction perpendicular to the bottom plate 101 than the original side frame 102, which also provides more and more convenient process options for the detachable connection with the support member 12. In addition, when the display module is applied to the vehicle field, it is generally necessary to connect and install with other equipment in the vehicle. After the side frame 102 is reduced in size, a certain space (the space outside the side wall 1022) is reserved, making it more convenient to install in a small space in the vehicle.

[0061] The support member 12 is connected to the extension 1021 by bolts. The bolts can connect the support member 12 to the extension 1021 in at least one direction perpendicular to the bottom plate 101 or parallel to the bottom plate 101. It is understandable that the bolts can connect the support member 12 and the extension 1021 in a direction perpendicular to the bottom plate 101, or in a direction parallel to the bottom plate 101, or in both directions at the same time to achieve a detachable connection between the support member 12 and the extension 1021. The bolt connection method is convenient for disassembly, and the processing technology is simple. It only needs to punch holes on the corresponding components to form threaded holes. There is no need to make too many changes to the original structure of the support member and the bottom plate, and the bolt connection is simple to disassemble. It should be understood that the bolt connection mentioned in this application refers to a method of connecting components through internal and external threads. The rod of the bolt used only needs to have threads, which can be partially threaded or fully threaded, and the end of the rod can be pointed or flat.

[0062] In one embodiment, Figure 3 As shown, the surface of the extension 1021 opposite to the support member 12 (the upper surface of the extension) is provided with a first mounting hole 1021a, and the first mounting hole 1021a is a through hole. The surface of the support member 12 opposite to the extension 1021 (the lower surface of the support) is provided with a second mounting hole 12a, and the bolt 14 passes through the first mounting hole 1021a and the second mounting hole 12a respectively to connect the extension 1021 with the support member 12. The second mounting hole 12a is a threaded hole, which matches the thread of the bolt. Optionally, the first mounting hole 1021a can be a light hole, and the diameter is greater than or equal to the external thread diameter of the bolt 14. The first mounting hole 1021a can also be a threaded hole, and the diameter is the same as that of the second mounting hole 12a. When the first mounting hole 1021a and the second mounting hole 12a are both threaded holes, the connection strength of the bolt can be increased, but when the threaded holes are made, the back plate 10 and the support member 12 need to be punched at the same time to ensure the continuity of the thread. When the first mounting hole 1021a is a light hole, the manufacturing process can be simplified, but the connection strength will be reduced. The above solution can be selected according to actual process requirements and is not limited here.

[0063] In another embodiment, Figure 4As shown, a protrusion 1023 is provided on the surface (upper surface of the extension) opposite to the support member 12 of the extension 1021, and a groove (not shown) matching the protrusion 1023 is provided on the support member 12. The protrusion 1023 of the extension 1021 is provided with a third mounting hole 1023b in the direction toward the display assembly 11, and a fourth mounting hole 12b is provided on the outer surface of the support member 12. The bolt 14 passes through the fourth mounting hole 12b and the third mounting hole 1023b to connect the support member 12 with the protrusion 1023. Optionally, the third mounting hole 1023b is a through hole, and the fourth mounting hole 12b can be a through hole or a hole with a certain depth. Optionally, the third mounting hole 1023b is a threaded hole, and the fourth mounting hole 12b can be a threaded hole or a light hole. Optionally, the fourth mounting hole 12 b is a countersunk hole, so that the bolt 14 can completely enter the mounting hole, without increasing the width of the display module 1 in a direction parallel to the base plate 101 , and protecting the bolt 14 from excessive external impact.

[0064] The arrangement of the protrusion on the extension portion 1021 and the groove on the support member 12 can facilitate the positioning and installation of the extension portion 1021 and the support member 12 , and can make the annular support member 12 more firmly fixed on the back plate 10 .

[0065] The protrusion 1023 can be disposed at any position on the third surface of the extension portion 1021, such as Figure 4 As shown, the protrusion 1023 is arranged at the center of the third surface of the extension part 1021. Optionally, the protrusion 1023 can also be arranged at the outer edge or inner edge of the third surface of the extension part 1021, which is not limited here. Optionally, the protrusion 1023 can be arranged on the entire surface of the extension part 1021 to form a continuous annular protrusion structure; the protrusion 1023 can also be arranged on a part of the surface of the extension part 1021 to form an intermittent protrusion structure, that is, the protrusion is arranged only at the position where the bolt connection is required.

[0066] Correspondingly, in another embodiment, a protrusion may be provided on the surface of the support member 12 opposite to the extension portion 1021 , and a groove matching the protrusion may be provided on the extension portion 1021 , thereby achieving a bolt connection between the support member 12 and the extension portion 1021 .

[0067] It should be understood that although Figure 3 and Figure 4 Only one bolt is shown in the figure, but in the embodiments of the present application, the support member 12 and the extension portion 1021 may have multiple groups of mounting holes evenly or symmetrically arranged around the annular structure, and the connection strength between the support member 12 and the extension portion 1021 is ensured by multiple bolt connections. The number and distribution of the mounting holes may be set according to actual needs and are not limited here.

[0068] like Figure 5and Figure 6 As shown, the display module 1 also includes a circuit board 16, and the circuit board 16 is arranged on the side of the bottom plate 101 away from the display component 11. The circuit board 16 here may include a printed circuit board (Printed Circuit Board, PCB) for controlling the driving display circuit. The printed circuit board here can be a hard circuit board or a flexible circuit board (Flexible Printed Circuit, FPC), which can be selected according to actual needs and is not limited here. The flexible circuit board is a highly reliable and excellently flexible printed circuit board made of polyimide or polyester film as a substrate, and has the characteristics of high wiring density, light weight, thin thickness and good bendability. Optionally, the circuit board 16 can be bonded to the bottom plate 101 by an adhesive, or the circuit board 16 can be fixed to the bottom plate 101 by bolts.

[0069] The circuit board 16 is connected to the display assembly 11 through at least one flexible conductive member 15. The flexible conductive member 15 here may include a flexible circuit board FPC. The flexible conductive member 15 is connected to the display panel 111 of the display assembly 11 through a bonding process. After the flexible conductive member 15 extends out of the display panel 111, it is close to the outer wall of the side frame 102, and finally bends to the bottom side wall of the bottom plate 101 and is connected to the circuit board 16. Optionally, the flexible conductive member 15 and the circuit board 16 can both be flexible circuit boards FPC.

[0070] It should be understood that although Figure 5 and Figure 6 Only one flexible conductive member 15 is shown in the figures, but in the embodiments of the present application, multiple flexible conductive members 15 can be bound to one side of the display panel 111, and the multiple flexible conductive members 15 are connected to the circuit board 16. The number of flexible conductive members 15 can be set according to the actual circuit design situation and is not limited here.

[0071] The side frame extension portion 1021 of the back panel 10 is provided with a first avoidance groove 1024, and the support member 12 is provided with a second avoidance groove 121. The first avoidance groove 1024 and the second avoidance groove 121 ensure that the flexible conductive member 15 can extend from the display component 11 and then smoothly pass through the support member 12 and the side frame 102 to connect with the circuit board 16.

[0072] In the module installation process, the display panel 111, the flexible conductive member 15 and the circuit board 16 are generally first bound and connected to form a whole before being placed in the back plate 10 for other assembly processes. The circuit board 16 is a whole panel structure with a large area. In order to realize the installation process of the flexible conductive member 15 and reduce the number of bending times of the flexible conductive member 15, in one embodiment, the first avoidance groove 1024 is a U-shaped groove, the opening of the first avoidance groove 1024 faces the outside of the extension part 1021, and the opening depth can be flush with the outer surface of the side wall 1022. It can be understood that the first avoidance groove 1024 makes a part of the annular structure of the extension part 1021 completely hollowed out. The second avoidance groove 121 is also a U-shaped groove, the opening of the second avoidance groove 121 faces the inside of the support member 12, and the opening depth can be set according to the actual situation, which is not limited here, but the opening depth cannot be too close to the outer wall of the support member 12, otherwise it will cause the support member 12 to have poor strength at the avoidance groove 121 or even break. The support member 12 retains a certain width at the avoidance groove 121, so that the support member 12 and the cover plate 13 can be better fitted at the second avoidance groove 121. In particular, when the display module is a curved module, the integral fit of the cover plate 13 and the support member 12 avoids the local stress concentration on the cover plate 13 at the vacant ends of the side frame 102. In addition, the second avoidance groove 121 of the support member 12 has a limiting effect on the flexible conductive member 15, preventing the flexible conductive member 15 from curling outwards and causing wrinkles.

[0073] In one embodiment, the display module 1 may be curved, that is, the cover plate 13, the display assembly 11, the support member 12, and the side frame 102 in the display module 1 are all curved, forming a curved display module 1, which can be applied to a curved screen display. For example, the curved display module 1 can be applied to a vehicle display device, such as a vehicle instrument and a central control display device, but is not limited thereto.

[0074] like Figure 7As shown, the display panel 111 in the display assembly 11 is curved. The display panel 111 and the cover plate 13 are bonded by the first adhesive layer 180 in a planar state to form a flat structure. Optionally, the first adhesive layer 180 can be a hydrogel OCR (Optical Clear Resin). The edge portion of the cover plate 13 and the support member 12 are bonded by the second adhesive layer 181, so that the display panel 111, the cover plate 13 and the support member 12 form an integral structure. This integral structure is cold-bent to form a curved shape. Such a design can ensure that the curvatures of the display panel 111, the cover plate 13 and the support member 12 are the same, and can also ensure the bonding yield and stability between the display panel 111, the cover plate 13 and the support member 12, thereby reducing the mura problem caused by flatness. In addition, this structure and bonding solution can make the display panel 111 only subject to its own bending stress and the colloid stress of direct contact with the adhesive material, thereby avoiding the contact stress of the upper iron frame and foam of the traditional curved module on the display panel 111.

[0075] In another embodiment, Figure 8 As shown, the display assembly 11 also includes a touch panel 112, which is located between the display panel 111 and the cover plate 13, and is bonded to the display panel 111 and the cover plate 13 respectively to form a flat structure. Similarly, the above-mentioned method is used to bond with the support member 12 to form an integrated structure, and the above-mentioned cold bending process is used to realize the assembly of the curved touch screen.

[0076] Optionally, the touch panel 112, the display panel 111 and the cover plate 13 can be fully bonded to the cover plate 13 using water glue OCR to form a flat structure. Compared with the frame bonding method, the full bonding method does not allow air to enter between the connecting parts, thereby avoiding the influence of air on the display effect.

[0077] In addition, in this embodiment, the flat plate structure formed by the display panel 111, the touch panel 112 and the cover plate 13 is bent by cold bending to facilitate processing into a curved structure with a specific curvature, and the bending state is well maintained, that is, the curvature remains stable, thereby further improving the serious problem of Mura phenomenon. It should be noted that the cold bending treatment in this embodiment refers to a method of bending and forming a sheet material; that is, the sheet material is mechanically bent into a profile of a certain shape and size at room temperature, and the product is called a cold-bent profile.

[0078] In another embodiment, a hot bending process may be used to realize the processing of the curved display module.

[0079] The back plate 10 can be bent and formed by die-casting to facilitate processing into a curved structure with a specific curvature. The curvature of the back plate 10 is the same as that of the cover plate 13 and the support member 12 to ensure the bonding yield and stability of the back plate 10 and the support member 12, thereby improving the situation where the Mura phenomenon is serious.

[0080] In one embodiment, if Fig. 9 As shown, the second adhesive layer 181 between the cover plate 13 and the support member 12 may include a first adhesive portion 1811 and a second adhesive portion 1812, and the first adhesive portion 1811 and the second adhesive portion 1812 are both located between the cover plate 13 and the support member 12 for bonding, that is: the two opposite adhesive surfaces of the first adhesive portion 1811 are respectively bonded to the cover plate 13 and the support member 12; the two opposite adhesive surfaces of the second adhesive portion 1812 are respectively bonded to the cover plate 13 and the support member 12, so as to achieve bonding between the cover plate 13 and the support member 12.

[0081] The elastic modulus of the second adhesive portion 1812 is smaller than that of the first adhesive portion 1811. By making a part of the structure of the second adhesive layer 181 from a material with a smaller elastic modulus, the buffering capacity of the adhesive layer can be increased to alleviate the uneven stress between the cover plate 13 and the support member 12, thereby improving the Mura phenomenon and improving the display effect.

[0082] In one embodiment, if Fig. 9 As shown, a liquid colloid such as a strong water glue S-OCR can be used as the second bonding part 1812, which can not only increase the buffering capacity of the bonding layer to alleviate the uneven stress between the cover plate 13 and the support member 12, thereby improving the Mura phenomenon; and because the strong water glue S-OCR has a strong bonding performance, it can also increase the overall bonding strength of the bonding layer, thereby ensuring the bonding stability between the cover plate 13 and the support member 12. It should be understood that due to the fluidity of the liquid colloid, simply using the strong water glue S-OCR to bond the cover plate 13 and the support member 12 is likely to cause stress concentration on the curved surface, especially in the curved screen module, and the uniformity of the bonding thickness cannot be guaranteed. In order to avoid this problem, the first bonding part 1811 of this embodiment can be made of a solid colloid, for example, VHB double-sided adhesive, and this solid glue can be set at the edge of the liquid colloid to control the thickness of the liquid colloid and play a role in sealing. Specifically, the first adhesive portion 1811 may include a first solid glue 1811a and a second solid glue 1811b arranged on the support member 12, and the first solid glue 1811a, the second solid glue 1811b and the cover plate 13 and the support member 12 form a receiving cavity; and the liquid colloid can be filled in the receiving cavity to form the second adhesive portion 1812.

[0083] An embodiment of the present application further provides a display device, which includes the display module 1 described in any of the aforementioned embodiments. The display device may be a vehicle instrument, a central control display device, a television, etc., but is not limited thereto.

[0084] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusion and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first", "second", etc. are used merely as labels and are not intended to limit the quantity of their objects.

[0085] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the appended claims.

Claims

1. A display module, characterized in that: include: A back plate, comprising a bottom plate and side frames arranged on the bottom plate; A display component is located in the side frame, and the display component includes a display panel; A support member, located at a side of the side frame away from the bottom plate, the support member being detachably connected to the side frame; A cover plate, located at a side of the support member away from the side frame, the cover plate being bonded to the support member; Wherein, the display panel and the cover plate are connected through a first adhesive layer, and the cover plate and the support member are connected through a second adhesive layer; the second adhesive layer includes a first adhesive portion and a second adhesive portion, the first adhesive portion includes a solid colloid, wherein the first adhesive portion includes a first solid glue and a second solid glue, the first solid glue, the second solid glue, the cover plate and the support member form a accommodating cavity; the second adhesive portion includes a liquid colloid, and the second adhesive portion is filled in the accommodating cavity.

2. The display module according to claim 1, characterized in that: The side frame includes an extension portion arranged outward, and the support member is detachably connected to the extension portion.

3. The display module according to claim 2, characterized in that: The support member is connected to the extension portion by bolts.

4. The display module according to claim 3, characterized in that: A first mounting hole is provided on a surface of the extension portion opposite to the support member, and a second mounting hole is provided on a surface of the support member opposite to the extension portion. Bolts pass through the first mounting hole and the second mounting hole respectively to connect the extension portion to the support member.

5. The display module according to claim 3, characterized in that: A protrusion is provided on the surface of the extension portion opposite to the support member, and the support member is provided with a groove matching the protrusion. The protrusion is provided with a third mounting hole along the direction toward the display component, and a fourth mounting hole is provided on the outer surface of the support member. Bolts pass through the fourth mounting hole and the third mounting hole respectively to connect the support member to the protrusion.

6. The display module according to any one of claims 2 to 5, characterized in that: The display module further comprises a circuit board, which is arranged on a side of the bottom plate away from the display assembly, and the circuit board is connected to the display assembly via at least one flexible conductive member.

7. The display module according to claim 6, characterized in that: The extension portion is provided with a first avoidance groove, and the support member is provided with a second avoidance groove, the opening of the first avoidance groove faces the outer side of the extension portion, and the opening of the second avoidance groove faces the inner side of the support member.

8. The display module according to any one of claims 1 to 5, characterized in that: The display module is curved.

9. The display module according to any one of claims 1 to 5, characterized in that: The display assembly includes a touch panel, and the touch panel is located between the display panel and the cover plate, and is bonded to the display panel and the cover plate respectively.

10. The display module according to any one of claims 1 to 5, characterized in that: The first adhesive layer is a liquid colloid.

11. A display device, characterized in that: A display module comprising any one of claims 1-10.

Images