Display module, display device and preparation method thereof

Abstract

The invention provides a display module, a display device and a preparation method of the display module, the display module comprises a display panel, a cover plate, a limiting piece and packaging glue, the cover plate is arranged on one side of the display panel in the thickness direction, the limiting piece is connected to the side, away from the cover plate, of the display panel, and a limiting part is arranged on the side, away from the display panel, of the limiting piece; the limiting part is used for being assembled with the middle frame in a matched mode, and the packaging adhesive is arranged on the peripheral side of the display panel. In the direction parallel to the plane where the cover plate is located, the limiting piece and the cover plate are arranged to exceed the display panel, so that a groove-shaped structure for containing the packaging adhesive is formed. According to the embodiment of the invention, the limiting piece is additionally arranged in the display module, so that the display module can be provided with the groove-shaped structure for accommodating the packaging adhesive, and the molding reliability of the packaging adhesive is improved. And the limiting piece can be assembled and matched with the middle frame, so that the risk of excessive displacement of the display module relative to the middle frame is reduced, and the impact resistance and the use reliability of the display device are improved.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular, to a display module, a display device, and a manufacturing method thereof. Background Art

[0002] With the development of display technology, display devices (such as mobile phones, tablets, wearable bracelets, or televisions, etc.) have been widely used, and users' requirements for display devices have gradually increased. Display devices are gradually developing towards being thinner, lighter, and having a full-screen design. However, this also leads to an increase in the manufacturing difficulty of the display device and higher requirements for the manufacturing process. Summary of the Invention

[0003] Embodiments of the present application provide a display module, a display device, and a manufacturing method thereof, which can release the space of the whole machine.

[0004] In a first aspect, embodiments of the present application provide a display module. The display module includes a display panel, a cover plate, a limiting member, and a packaging adhesive. The cover plate is disposed on one side of the display panel in the thickness direction. The limiting member is connected to the side of the display panel facing away from the cover plate. A limiting portion is provided on the side of the limiting member facing away from the display panel. The limiting portion is used for assembling with a middle frame. The packaging adhesive is disposed on the outer peripheral side of the display panel. Among them, in a direction parallel to the plane where the cover plate is located, the limiting member and the cover plate extend beyond the display panel to form a groove-like structure for accommodating the packaging adhesive.

[0005] In a second aspect, embodiments of the present application provide a display device. The display device includes the display module in any of the foregoing embodiments. A receiving groove is defined on the surface of the middle frame in the thickness direction. The bottom surface of the receiving groove is recessed inward to form a limiting groove. The display panel is located in the receiving groove, and part of the limiting member is located in the limiting groove.

[0006] In a third aspect, embodiments of the present application provide a manufacturing method of a display device, including:

[0007] Bond the display panel and the cover plate together, with the cover plate disposed on one side of the display panel in the thickness direction;

[0008] Connect the display panel and the limiting member, with the limiting member located on the side of the display panel facing away from the cover plate. The limiting member and the cover plate extend beyond the display panel to form a groove-like structure;

[0009] Form a packaging adhesive in the groove-like structure;

[0010] Cooperate and fix the display panel and the middle frame. The surface of the middle frame in the thickness direction is recessed inward to form a receiving groove. The bottom surface of the receiving groove is recessed inward to form a limiting groove. The display panel is located in the receiving groove, and the limiting portion is located in the limiting groove.

[0011] The embodiments of the present application provide a display module, a display device and a manufacturing method thereof. By adding a limiting member in the display module and restricting the size, shape and relative position of the limiting member to the display panel, the display module can have a groove structure for accommodating encapsulation glue, thereby improving the forming reliability of the encapsulation glue and reducing the risk of problems such as glue overflow or glue shortage. And in the finally formed display device, the limiting member can also be assembled and cooperated with the middle frame. In this way, with the help of the limiting member, the relative position between the display module and the middle frame can also be defined, reducing the risk of excessive displacement of the display module relative to the middle frame and improving the shock resistance and use reliability of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0013] Figure 1 is a schematic structural diagram of a display module provided by an embodiment of the present application;

[0014] Figure 2 is Figure 1 a schematic cross-sectional structure diagram at A-A in

[0015] Figure 3 is a schematic structural diagram of another display module provided by an embodiment of the present application;

[0016] Figure 4 is Figure 3 a schematic cross-sectional structure diagram at B-B in

[0017] Figure 5 is a schematic cross-sectional structure diagram of a display device provided by an embodiment of the present application;

[0018] Figures 6a to 6d is a schematic cross-sectional structure diagram of another display module provided by an embodiment of the present application;

[0019] Figure 7 is a schematic cross-sectional structure diagram of another display module provided by an embodiment of the present application;

[0020] Figure 8 is Figure 1 a schematic cross-sectional structure diagram at C-C in

[0021] Figure 9 is a schematic cross-sectional structure diagram of another display module provided by an embodiment of the present application;

[0022] Figure 10 is a schematic structural diagram of another display module provided by an embodiment of the present application;

[0023] Figure 11 It is a schematic cross-sectional structure diagram of another display module provided by an embodiment of the present application;

[0024] Figure 12 It is a schematic cross-sectional structure diagram of another display device provided by an embodiment of the present application;

[0025] Figure 13 It is a schematic cross-sectional structure diagram of another display module provided by an embodiment of the present application;

[0026] Figure 14 It is a schematic cross-sectional structure diagram of another display module provided by an embodiment of the present application;

[0027] Figure 15 It is a schematic cross-sectional structure diagram of another display module provided by an embodiment of the present application;

[0028] Figure 16 It is a schematic cross-sectional structure diagram of another display device provided by an embodiment of the present application;

[0029] Figure 17 It is a schematic cross-sectional structure diagram of another display device provided by an embodiment of the present application;

[0030] Figure 18 It is a flowchart of a method for manufacturing a display device provided by an embodiment of the present application

[0031] Figures 19a to 19d It is a schematic process structure diagram of a method for manufacturing a display device provided by an embodiment of the present application.

[0032] Marking description:

[0033] 100, display module; 200, display device;

[0034] 10, display panel; 11, display portion; 12, bending portion; 13, bonding portion; 131, body portion; 132, driving chip; 133, protection portion; 14, support layer;

[0035] 20, cover plate; 21, cover plate body; 22, bending portion;

[0036] 30, limiting member; 31, limiting portion; 32, avoidance hole; 33, connecting portion; 34, through-hole structure; 30a, first limiting sub-portion; 30b, second limiting sub-portion;

[0037] 40, encapsulating glue;

[0038] 50, middle frame; 51, accommodating groove; 52, limiting groove; 53, bottom plate; 54, side plate;

[0039] 60. Blocking member; 61. First part; 62. Buffer part;

[0040] 70. Adhesive layer;

[0041] 80. Glue structure; 81. First glue part; 82. Second glue part; 83. Third glue part;

[0042] X. First direction; Y. Second direction; Z. Thickness direction. Detailed implementation manners

[0043] The features of various aspects of the present application and exemplary embodiments will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than limiting the present application. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present application by showing examples of the present application.

[0044] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, the elements defined by the statement "including..." do not exclude the existence of additional identical elements in the process, method, article or device including the said elements.

[0045] With the development of the technology level, display devices have also gradually developed, and full-screen display devices have emerged as the times require. Under the demand for full screens, it is necessary to reduce the border size of the display device. After the border size is reduced, the overall protection performance of the display device will also decline. However, in order to meet the actual use needs, the display device needs to have high anti-sweat and alkali, oil resistance and other properties.

[0046] On this basis, in the related art, glue is coated on the four side edges of the display module to block the intrusion of sweat and alkali, grease, etc. into the module interior, so as to improve the use reliability of the finally formed display device. However, due to factors such as process precision, there are problems such as poor coating precision, large fluctuations, overflow glue and missing glue in the glue for sealing the four side edges of the display module.

[0047] Regarding the above problems, in a first aspect, please refer to Figures 1 to 5 In an embodiment of the present application, a display module 100 is provided. The display module 100 includes a display panel 10, a cover plate 20, a limiting member 30, and a packaging adhesive 40. The cover plate 20 is disposed on one side of the display panel 10 in the thickness direction Z. The limiting member 30 is connected to the side of the display panel 10 facing away from the cover plate 20. A limiting portion 31 is provided on the side of the limiting member 30 facing away from the display panel 10. The limiting portion 31 is used for assembling with the middle frame 50. The packaging adhesive 40 is disposed on the outer peripheral side of the display panel 10. Wherein, in a direction parallel to the plane where the cover plate 20 is located, the limiting member 30 and the cover plate 20 extend beyond the display panel 10 to form a groove-like structure C for accommodating the packaging adhesive 40.

[0048] The display module 100 is a main component for forming a display device 200. In addition to the display module 100, the display device 200 further includes a middle frame 50. The middle frame 50 is a hollow structural frame. At least part of the structure in the display module 100 is accommodated in the middle frame 50. The middle frame 50 can play a role in fixing and protecting the display module 100. Optionally, the middle frame 50 includes at least one of a plastic material and a metal material.

[0049] The display panel 10 is a functional component in the display module 100 for realizing a display effect. The display panel 10 includes a light-emitting structure. The light-emitting structure can have various forms. For example, the light-emitting structure can include an organic light-emitting device, so that the finally formed display device 200 is an organic light-emitting display device 200. Or the light-emitting structure can include a micro light-emitting diode, so that the finally formed display device 200 is a micro light-emitting display device 200.

[0050] The cover plate 20 is a functional component in the display module 100 for protecting the display panel 10. The cover plate 20 is disposed on one side of the display panel 10 in the thickness direction Z. Exemplarily, the cover plate 20 can be located on the light-emitting surface side of the display panel 10 and is fixedly bonded to the display panel 10. The present application embodiment does not limit the material composition of the cover plate 20. Optionally, the cover plate 20 can include a rigid material. In this case, the surface of the cover plate 20 can be flat, so that the finally formed display device 200 has a straight screen structure. Or the cover plate 20 can also include a flexible material. In this case, at least part of the surface of the cover plate 20 can be curved, so that the finally formed display device 200 has a curved screen structure.

[0051] In a direction parallel to the plane where the cover plate 20 is located, a part of the structure in the cover plate 20 extends beyond the display panel 10. Optionally, the outer contour of the projection of the display panel 10 in the thickness direction Z can be shrunk relative to the outer contour of the projection of the cover plate 20 in the thickness direction Z. Further, an ink layer can be provided at the position where the cover plate 20 extends beyond the display panel 10. The ink layer has a certain light-shielding effect, which helps to reduce the reflection problem corresponding to the finally formed display device 200 and improve the display effect.

[0052] It should be noted that the display panel 10 usually includes a plurality of film layer structures arranged in a stacked manner, and the thickness directions Z corresponding to the plurality of film layers in the display panel 10 are often parallel to the thickness direction Z of the display panel 10. Moreover, the thickness direction Z of the cover plate 20 and the thickness direction Z of the entire display module 100 are usually also parallel to the thickness direction Z of the display panel 10. On this basis, for the convenience of description and understanding, in the drawings, the embodiments of the present application schematically show these thickness directions Z in the same direction.

[0053] Further, the "projection in the thickness direction Z" mentioned in the embodiments of the present application refers to: the orthographic projection on any plane perpendicular to the thickness direction Z. Among them, since the plane where the cover plate 20 is located is perpendicular to the thickness direction Z, the projection in the thickness direction Z can be the orthographic projection on the plane where the cover plate 20 is located. Similarly, the "projection in the thickness direction Z" mentioned in the subsequent embodiments of the present application is the same, and the present application will not elaborate on this.

[0054] The limiting member 30 is disposed on the side of the display panel 10 facing away from the cover plate 20, that is, the limiting member 30 and the cover plate 20 are disposed on different sides of the display panel 10 in the thickness direction Z. Specifically, the cover plate 20 is located on the light-emitting surface side of the display panel 10, while the limiting member 30 is located on the backlight surface side of the display panel 10. The limiting member 30 is connected to the display panel 10, and the connection manner between the two includes but is not limited to bonding, screw connection, and welding.

[0055] Similar to the cover plate 20, in a direction parallel to the plane where the cover plate 20 is located, the limiting member 30 and the cover plate 20 extend beyond the display panel 10 to form a groove-like structure C for accommodating the encapsulation glue 40. The groove-like structure C is used to accommodate at least part of the structure of the encapsulation glue 40. In the related art, there is no groove-like structure C in the display module 100, and the encapsulation glue 40 is dropped on the peripheral side of the edge of the display module 100 by means of dispensing. In this way, limited by the process accuracy, problems such as glue overflow or glue shortage are likely to occur, which is not conducive to the yield and use reliability of the finally formed display device 200.

[0056] In the embodiment of the present application, since the limiting member 30 and the cover plate 20 both extend beyond the display panel 10 in the direction parallel to the plane where the cover plate 20 is located, the two can jointly define a groove-shaped structure C. The presence of the groove-shaped structure C can play a certain blocking role on the glue during the gluing process, so that the formed encapsulation glue 40 can be restricted at the position where the groove-shaped structure C is located, and the encapsulation glue 40 can be kept in a certain size and shape. Thereby improving the reliability of the relative position of the encapsulation glue 40, reducing the risk of problems such as glue overflow or lack of glue, and further contributing to improving the yield rate of the display device 200 and the blocking reliability of the display device 200 against sweat alkali and grease, etc.

[0057] It should be noted that the "direction parallel to the plane where the cover plate 20 is located" mentioned in the embodiment of the present application refers to: the direction perpendicular to the thickness direction Z, which can refer to a specific direction, or can also refer to multiple different directions, and the embodiment of the present application does not limit this. Specifically, taking the finally formed display device 200 as a mobile phone as an example, at the four positions of the upper and lower borders and the left and right borders of the display module 100, the cover plate 20 usually extends beyond the display panel 10. For the limiting member 30, the limiting member 30 can be provided only at one of the four positions of the upper and lower borders and the left and right borders. For example, when the limiting member 30 is located at the left border position, the "direction parallel to the plane where the cover plate 20 is located" refers to the arrangement direction of the left border and the right border, that is, it refers to a single specific direction. Or the limiting member 30 can also be provided at multiple of the four positions of the upper and lower borders and the left and right borders. For example, when the limiting member 30 is provided at the left border and the lower border positions at the same time, the "direction parallel to the plane where the cover plate 20 is located" refers to both the arrangement direction of the left border and the right border and the arrangement direction of the upper border and the lower border, that is, it refers to multiple different directions. Among them, Figure 1 and Figure 2 shows the case where the limiting member 30 is provided only at the lower border. Figure 3 and Figure 4 shows the case where the limiting member 30 is provided only at the upper border.

[0058] In addition, in addition to being used to meet the formation requirements of the encapsulation glue 40, the limiting member 30 is also used for the limiting portion 31 for assembling and cooperating with the middle frame 50. Exemplarily, the limiting portion 31 can include a convex structure, and the middle frame 50 includes a groove structure, and the two are assembled by inserting. Or the limiting portion 31 can include a groove structure, and the middle frame 50 includes a convex structure, and the two are assembled by inserting. Among them, Figure 5 shows the case where the limiting portion 31 can include a convex structure and the middle frame 50 includes a groove structure.

[0059] In summary, in the embodiment of the present application, by adding a limiter 30 in the display module 100 and limiting the size, shape and position of the limiter 30 relative to the display panel 10, the display module 100 can have a groove structure C for accommodating the packaging glue 40, thereby improving the molding reliability of the packaging glue 40 and reducing the risk of problems such as overflow or lack of glue. In addition, in the final display device 200, the limiter 30 can also be assembled with the middle frame 50, so that the relative position between the display module 100 and the middle frame 50 can be limited by the limiter 30, reducing the risk of excessive displacement of the display module 100 relative to the middle frame 50, and improving the impact resistance and reliability of the display device 200. In some embodiments, such as Figure 1 and Figure 2 As shown, the display panel 10 includes a display portion 11, a bending portion 12 and a binding portion 13, wherein the display portion 11 and the binding portion 13 are both connected to the bending portion 12, and the binding portion 13 is bent through the bending portion 12 to the side of the display portion 11 away from the cover plate 20. The projection of the stopper 30 in the thickness direction Z overlaps with the projection of the bending portion 12 in the thickness direction Z.

[0060] The display unit 11 is the main functional component of the display panel 10, and the display unit 11 has a light emitting surface and a backlight surface. The display unit 11 generally includes a plurality of different film layers stacked in layers. For example, the display unit 11 includes a stacked array layer, a light emitting layer, and an optical adhesive layer, etc. The light emitting structure can be disposed in the light emitting layer, and the cover plate 20 can be bonded and fixed to the display panel 10 through the optical adhesive layer.

[0061] The binding portion 13 is a component in the display panel 10 for integrating structures such as a flexible circuit board and a driving chip 132. In order to reduce the adverse effect of the binding portion 13 on the frame size, the binding portion 13 and the display portion 11 are not arranged in a direction parallel to the plane where the cover plate 20 is located, but are spaced apart in the thickness direction Z, and the two are connected by the bending portion 12.

[0062] In the embodiment of the present application, the bending portion 12 is usually located at the lower frame position of the display module 100. On this basis, by overlapping the projection of the limiting member 30 in the thickness direction Z with the projection of the bending portion 12 in the thickness direction Z, at least a partial structure of the limiting member 30 can exist at the lower frame position of the display module 100, so that a groove structure C for accommodating the packaging glue 40 can exist at the lower frame position, thereby reducing the adverse effect of the bending morphology of the bending portion 12 on the preparation process of the packaging glue 40 with the help of the groove structure C, thereby improving the structural reliability of the packaging glue 40 at the lower frame position.

[0063] It should be noted that in the embodiments of the present application, according to different actual needs, the limiting member 30 can be only arranged at the position of the lower border, or can be arranged at the position of the lower border and also at the positions of other borders. The embodiments of the present application do not limit this. As long as the limiting member 30 can be at least partially located at the position of the lower border, a groove-like structure C can be provided at the position of the lower border.

[0064] In addition, the embodiments of the present application do not limit the positional relationship between the limiting member 30 and the binding portion 13. Exemplarily, the projection of the limiting member 30 in the thickness direction Z can be located outside the projection of the binding portion 13 in the thickness direction Z, or the projection of the limiting member 30 in the thickness direction Z can also overlap with the projection of the binding portion 13 in the thickness direction Z.

[0065] For the gel-like structure located on the periphery of the display module, Figure 2 and Figure 4 both illustrate the case where only the encapsulation glue 40 is provided, that is, the gel-like structure is only arranged outside the bending portion 12. However, according to different actual needs, the inner side of the bending portion 12 can be selectively provided with a gel-like structure. In combination with Figures 6a to 6d it is stated that if a glue structure 80 is provided on the inner side of the bending portion 12, the glue structure 80 can have various forms. Specifically, as Figure 6a and 6d shown, the glue structure 80 can only include a first glue portion 81. Or as Figure 6b shown, the glue structure 80 can include a first glue portion 81 and a second glue portion 82, and the first glue portion 81 and the second glue portion 82 are respectively dispensed in different processes. Or as Figure 6c shown, the glue structure 80 can include a first glue portion 81, a second glue portion 82 and a third glue portion 83, and the first glue portion 81, the second glue portion 82 and the third glue portion 83 are respectively dispensed in different processes. Among them, Figure 6a and Figure 6b both show the case where the glue structure 80 does not fill the inner gap space of the bending portion 12. In other cases, as Figure 6c and Figure 6d shown, the glue structure 80 can also fill the inner gap space of the bending portion 12.

[0066] In some embodiments, as Figure 1 and Figure 2 shown, the projection of the limiting member 30 in the thickness direction Z overlaps with the projection of the binding portion 13 in the thickness direction Z, and the limiting member 30 is connected to the binding portion 13.

[0067] As can be seen from the accompanying drawings, the bending portion 12 is located on one side of the display portion 11 along the first direction X. The structure of the limiting member 30 corresponding to the lower border position extends beyond both sides of the bending portion 12 along the first direction X. Among them, a part of the structure of the limiting member 30 that extends beyond the side of the bending portion 12 away from the bonding portion 13 is used to jointly define a groove-like structure C with the cover plate 20, and a part of the structure of the limiting member 30 that extends beyond the side of the bending portion 12 facing the bonding portion 13 is used to connect to the bonding portion 13 to realize the relative fixation between the display panel 10 and the limiting member 30.

[0068] In the embodiment of the present application, the projection size of the limiting member 30 in the thickness direction Z is limited so that it can overlap with the bonding portion 13 correspondingly. On this basis, considering that the morphology of the bonding portion 13 is generally flatter than that of the bending portion 12, the limiting member 30 is selected to be connected to the bonding portion 13, thereby reducing the connection difficulty of the limiting member 30 relative to the display panel 10 and helping to improve the connection reliability between the limiting member 30 and the display panel 10.

[0069] Of course, in some other embodiments, the limiting member 30 extends beyond the side of the bonding portion 13 away from the bending portion 12 along the first direction X. In this case, the limiting member 30 can be connected to the display portion 11, and this can also meet the fixation requirements between the limiting member 30 and the display panel 10.

[0070] In some embodiments, as Figure 1 and Figure 2 shown, the bonding portion 13 includes a body portion 131, a driving chip 132 disposed on the side of the body portion 131 facing away from the display portion 11, and a protection portion 133 disposed on the side of the driving chip 132 facing away from the display portion 11. The limiting member 30 is disposed on the side of the protection portion 133 facing away from the display portion 11 and is connected to the protection portion 133.

[0071] The bonding portion 13 at least includes a body portion 131, a driving chip 132, and a protection portion 133. The driving chip 132 is disposed on the side of the body portion 131 facing away from the display portion 11. The driving chip 132 can include various types. For example, the bonding portion 13 can include at least one of a display driving chip 132 and a touch driving chip 132. The display driving chip 132 is used to store image data, generate driving voltage, and can also improve the image quality through a customized algorithm and other functions. The touch driving chip 132 mainly realizes touch signal processing and is a necessary component of the display device 200 with touch function. Of course, the display driving chip 132 and the touch driving chip 132 can also be integrally disposed on the body portion 131.

[0072] The protection part 133 is arranged on the side of the driving chip 132 away from the display part 11, and the protection part 133 can protect the driving chip 132. Further optionally, the protection part 133 can adopt a structure such as a tape, so that the protection part 133 can also cover the driving chip 132 and be adhesively fixed to the body part 131, thereby improving the reliability of the relative position between the driving chip 132 and the body part 131.

[0073] Furthermore, in the embodiment of the present application, by adjusting the size of the limiting part 30, it is arranged on the side of the protection part 133 away from the display part 11 and connected to each other, thereby realizing the relative fixation between the limiting part 30 and the display panel 10. In addition, this design enables the body part 131 and the limiting part 30 to be arranged at intervals in the thickness direction Z. In this way, during the glue application process, part of the glue can move to the surface of the body part 131 on the side away from the display part 11 and contact the body part 131, thereby realizing the contact setting between the bonding part 13 and the encapsulation glue 40. This helps to reduce the risk of grease and the like invading the bonding part 13 by means of the encapsulation glue 40 and improve the reliability of use of the bonding part 13.

[0074] In some embodiments, please refer to Figure 7 , the display panel 10 further includes a support layer 14 arranged between the bonding part 13 and the display part 11. In the direction parallel to the plane where the cover plate 20 is located, both the support layer 14 and the limiting part 30 extend beyond one end of the bonding part 13 away from the bending part 12, and the limiting part 30 is connected to the support layer 14.

[0075] The support layer 14 is a functional film layer arranged between the bonding part 13 and the display part 11 and having a supporting effect on the display part 11. And the two surfaces of the support layer 14 in the thickness direction Z can be respectively in contact connection with the bonding part 13 and the display part 11. In this way, the setting of the support layer 14 also helps to improve the reliability of the relative position between the bonding part 13 and the display part 11. Among them, the support layer 14 can include a plurality of film layer structures arranged in a stacked manner. The specific film layer composition form and material type of the support layer 14 are not limited in the embodiment of the present application.

[0076] In the embodiment of the present application, both the support layer 14 and the limiting part 30 extend beyond the side of the bonding part 13 away from the bending part 12 along the first direction X. On this basis, the parts of the support layer 14 and the limiting part 30 that extend beyond the bonding part 13 can be connected to each other to meet the fixation requirement between the limiting part 30 and the display panel 10. And because the surface of the support layer 14 in the thickness direction Z is usually flat, this design also helps to reduce the connection difficulty between the limiting part 30 and the display panel 10 and improve the fixation reliability between the two.

[0077] The present application embodiment does not limit the specific connection manner between the limiting member 30 and the support layer 14. Optionally, the display module 100 further includes an adhesive layer 70 located between the limiting member 30 and the support layer 14, and the limiting member 30 and the support layer 14 are fixedly connected through the adhesive layer 70.

[0078] It should be noted that the above two implementation manners are two connection forms of the limiting member 30 relative to the display panel 10. On this basis, according to different actual needs, at least one of the two can be selected to realize the relative fixation of the limiting member 30 and the display panel 10, which has strong flexibility and applicability. Exemplarily, the structure at the position corresponding to the lower border in the limiting member 30 can be connected only to the protection part 133, or can also be connected only to the support layer 14, or can also be connected to both the protection part 133 and the support layer 14.

[0079] In some embodiments, as Figure 7 shown, the limiting member 30 includes an avoidance hole 32, the avoidance hole 32 penetrates through the limiting member 30 in the thickness direction Z, and the projection of the driving chip 132 in the thickness direction Z overlaps with the avoidance hole 32 in the thickness direction Z.

[0080] Combined with the foregoing content, the projection of the limiting member 30 in the thickness direction Z can overlap with the projection of the bonding part 13 in the thickness direction Z. Considering that the driving chip 132 is located in the bonding part 13, in order to reduce the influence of the limiting member 30 on the driving chip 132, the present application embodiment is provided with an avoidance hole 32 in the limiting member 30, and the avoidance hole 32 is correspondingly arranged with the driving chip 132 to achieve an avoidance effect. This design can reduce the risk that external stress is transmitted to the driving chip 132 through the middle frame 50 and the limiting member 30 in sequence, reduce the stress impact on the driving chip 132, and improve the use reliability of the finally formed display device 200.

[0081] In some alternative embodiments, the projection of the avoidance hole 32 in the thickness direction Z covers the projection of the driving chip 132 in the thickness direction Z, so that the projection of the limiting member 30 in the thickness direction Z can be completely located outside the projection of the driving chip 132 in the thickness direction Z, thereby further reducing the stress impact on the driving chip 132.

[0082] In some embodiments, as Figure 1 and Figure 2 shown, the bending part 12 is located on one side of the display part 11 along the first direction X, the dimension of the limiting member 30 in the second direction Y is smaller than the dimension of the display part 11 in the second direction Y, the first direction X and the second direction Y are both parallel to the plane where the cover plate 20 is located, and intersect with each other.

[0083] In connection with the display module 100, the first direction X may be the arrangement direction of the upper and lower borders of the display module 100, and the second direction Y may be the arrangement direction of the left and right borders of the display module 100. Optionally, the first direction X, the second direction Y, and the thickness direction Z are perpendicular to each other in pairs.

[0084] In the embodiment of the present application, the limiting member 30 is only provided on the lower border of the display module 100, and the size of the limiting member 30 in the second direction Y is smaller than the size of the display portion 11 in the second direction Y. In this design, the groove-shaped structure C only exists in a partial area of the lower border, thereby improving the structural reliability of the encapsulation glue 40 at the local position of the lower border, and at the same time helping to reduce the overall size of the limiting member 30, reducing the weight impact of the limiting member 30 on the finally formed display device 200, and facilitating the thin and light design.

[0085] It should be noted that the display portion 11 generally extends beyond the bending portion 12 in the second direction Y. On this basis, the present application embodiment does not limit the size relationship between the limiting member 30 and the bending portion 12 in the second direction Y. Exemplarily, the size of the limiting member 30 in the second direction Y may be greater than the size of the bending portion 12 in the second direction Y, or the size of the limiting member 30 in the second direction Y may also be smaller than or equal to the size of the bending portion 12 in the second direction Y.

[0086] In some embodiments, please refer to Figure 1 、 Figure 2 and Figure 8 , the display module 100 further includes a blocking member 60, the blocking member 60 is filled in the groove-shaped structure C, and the two blocking members 60 are arranged at intervals in the second direction Y.

[0087] The blocking member 60 is a component used to prevent the encapsulation glue 40 in the groove-shaped structure C from overflowing in the second direction Y. The blocking member 60 is arranged in the groove-shaped structure C and is fixed relative to the limiting member 30 and the display panel 10. Exemplarily, the blocking member 60 can be connected to at least one of the limiting member 30 and the display panel 10 by welding or the like, or the blocking member 60 can also be relatively fixed to the limiting member 30 and the display panel 10 by extrusion filling.

[0088] The number of the blocking members 60 is at least two, and the two blocking members 60 are spaced apart in the second direction Y. There can be various positional forms between the blocking member 60 and the groove-shaped structure C. Exemplarily, a single blocking member 60 can be arranged at the end position of the groove-shaped structure C in the second direction Y, or can also be arranged at a certain position in the center of the groove-shaped structure C in the second direction Y. Further, there can be various positional forms between the blocking member 60 and the display panel 10. Exemplarily, a single blocking member 60 can be correspondingly arranged with a local structure in the bending portion 12 or the bonding portion 13 in the second direction Y, or can also be located on one side of the bending portion 12 and the bonding portion 13 in the second direction Y.

[0089] In addition, the present application embodiment does not limit the specific material composition form of the blocking member 60. The blocking member 60 can include the same material at different positions, or the blocking member 60 can also include different structures with different materials, as long as the two blocking members 60 can cooperate with each other to block the groove-shaped structure C in the second direction Y.

[0090] In summary, for the case where the groove-shaped structure C is only provided in the lower border of the display module 100, the present application embodiment adds the blocking member 60 in the groove-shaped structure C, and spaces the two blocking members 60 apart in the second direction Y, so as to achieve the blocking effect on the encapsulation glue 40 in the second direction Y. Thus, through the combined action of the limiting member 30, the blocking member 60, and the cover plate 20, it helps to further improve the limitation of the structure and relative position of the encapsulation glue 40, and improve the structural reliability of the encapsulation glue 40.

[0091] In some embodiments, as Figure 1 and Figure 8 shown, the display portion 11 extends beyond the bending portion 12 in the second direction Y, and the two blocking members 60 are respectively arranged on both sides of the bending portion 12 along the second direction Y.

[0092] The size of the display portion 11 in the second direction Y is larger than the size of the bending portion 12 in the second direction Y, and the projections of the two blocking members 60 in the thickness direction Z do not overlap with the bending portion 12, but are respectively arranged on both sides of the bending portion 12 along the second direction Y. This design can, on the one hand, reduce the extrusion effect of the presence of the blocking member 60 on the bending portion 12 and improve the structural reliability of the bending portion 12. On the other hand, the shape and size of the blocking member 60 are no longer affected by the bending portion 12, which also helps to increase the size of the blocking member 60 in the thickness direction Z, so as to improve the blocking effect of the blocking member 60 and further reduce the risk of the encapsulation glue 40 overflowing in the second direction Y.

[0093] In some embodiments, please refer to Figure 8 and Figure 9, the blocking member 60 includes a first portion 61 connected to the limiting member 30, and the first portion 61 and the limiting member 30 are made of the same material; and / or, the blocking member 60 includes a buffer portion 62 in contact with the display portion 11, and the structural strength of the buffer portion 62 is less than that of the limiting member 30.

[0094] In order to better achieve the blocking effect, both ends of the blocking member 60 in the thickness direction Z need to be in contact with the limiting member 30 and the display portion 11 respectively. Considering that in the finally formed display device 200, the limiting member 30 will be assembled and cooperated with the middle frame 50, and during use or transportation, the external impact force can be transmitted to the limiting member 30 through the middle frame 50 and then transmitted to the blocking member 60 through the limiting member 30. On this basis, in order to reduce the deformation degree of the portion structure of the blocking member 60 in contact with the limiting member 30, the embodiment of the present application can select to set the first portion 61 of the blocking member 60 in contact with the limiting member 30 to be made of the same material as the limiting member 30. In this way, the first portion 61 can have the same strong structural strength as the limiting member 30, thereby reducing the risk of deformation of the first portion 61 due to impact and improving the use reliability of the blocking member 60.

[0095] For the specific formation method of the first portion 61, the embodiment of the present application does not make any restrictions. Optionally, the first portion 61 and the limiting member 30 may be an integral structure. Further, the first portion 61 and the limiting member 30 may both be sheet metal parts and be formed by a sheet metal stamping process. Or in some other embodiments, the first portion 61 and the limiting member 30 may also be a split structure, and the two are connected and fixed by welding and bonding.

[0096] Regarding the portion structure of the blocking member 60 in contact with the display portion 11, the external impact on the blocking member 60 will be transmitted to the display portion 11 through this portion structure. On this basis, in order to reduce the stress influence of the blocking member 60 on the display portion 11, the embodiment of the present application can also select to provide a buffer portion 62 in the blocking member 60. Compared with the limiting member 30, the buffer portion 62 has a smaller structural strength, so as to achieve a stress buffering effect, thereby helping to reduce the stress influence of the blocking member 60 on the display portion 11 and improving the use reliability of the display panel 10.

[0097] For the specific material composition method of the buffer portion 62, the embodiment of the present application does not make any restrictions. Optionally, the buffer portion 62 includes a foam material. On this basis, in addition to being able to buffer stress to improve the reliability of the display portion 11, the buffer portion 62 can also fill the groove-like structure C, improve the blocking effect of the blocking member 60 on the groove-like structure C, and reduce the risk of the encapsulation glue 40 overflowing in the second direction Y.

[0098] It should be noted that, according to different actual needs, the blocking member 60 may only include the first part 61, or as Figure 7 shown, the blocking member 60 may also only include the buffer portion 62, or as Figure 8 shown, the blocking member 60 may include both the first part 61 and the buffer portion 62. The embodiments of the present application do not limit this.

[0099] In some embodiments, please refer to Figure 10 , the projection of the limiting member 30 in the thickness direction Z is disposed around the periphery of the projection of the display panel 10 in the thickness direction Z.

[0100] As can be seen from the accompanying drawings, the projection of the limiting member 30 in the thickness direction Z may be in an annular structure. On this basis, the projection of the groove-like structure C jointly defined by the limiting member 30, the cover plate 20, and the display panel 10 in the thickness direction Z may also be in an annular structure and surround the peripheral position of the display panel 10. In other words, the groove-like structure C exists at the upper and lower borders and the left and right borders of the display module 100. Among them, the groove-like structure C at the lower border position can refer to the structure shown in FIG. 6, and the groove-like structure C at the upper border, left border, and right border positions can refer to Figure 4 the structure shown.

[0101] Regarding the fixing manner between the limiting member 30 and the display panel 10, the embodiments of the present application do not limit it. Optionally, the limiting member 30 may be connected to at least one of the bonding portion 13 and the support layer 14 at the lower border position. Or optionally, the limiting member 30 may also be connected to the support layer 14 or the display portion 11 at at least one position of the upper border and the left and right borders.

[0102] In the embodiments of the present application, by adjusting the size and shape of the limiting member 30, the groove-like structure C can be disposed around the periphery of the display panel 10, so that the groove-like structure C exists at the upper and lower borders and the left and right borders of the display module 100, which helps to improve the formation reliability of the encapsulation glue 40 at different peripheral positions of the display module 100 and improve the encapsulation effect of the encapsulation glue 40 on different peripheral positions of the display panel 10.

[0103] In some embodiments, please refer to Figure 4 and Figure 10The limiting member 30 includes a first limiting sub-portion 30a and a second limiting sub-portion 30b connected in an integral manner in the circumferential direction of the display panel 10, the first limiting sub-portion 30a overlaps with the projection of the binding portion 13 in the thickness direction Z, and the projection of the second limiting sub-portion 30b in the thickness direction Z is located outside the projection of the binding portion 13 in the thickness direction Z. The display module 100 also includes a supporting layer 14 disposed between the display portion 11 and the binding portion 13, and the second limiting sub-portion 30b is connected to the supporting layer 14. Figure 9 In the figure, the boundary between the first limiting sub-portion 30a and the second limiting sub-portion 30b is indicated by a black bold dotted line.

[0104] The first limiting sub-portion 30a is a structure located at the lower frame position in the limiting member 30, and the second limiting sub-portion 30b is a structure located at the upper frame, the left frame and the right frame in the limiting member 30. Specifically, the second limiting sub-portion 30b includes a first sub-portion, a second sub-portion and a third sub-portion, the first sub-portion is a structure located at the upper frame, the first sub-portion and the first limiting sub-portion 30a are arranged side by side in the first direction X, the second sub-portion is a structure located at the left frame, the third sub-portion is a structure located at the right frame, and the second sub-portion and the third sub-portion are arranged side by side in the second direction Y. Among them, the two ends of the second sub-portion and the third sub-portion in the first direction X are respectively connected to the first limiting sub-portion 30a and the first sub-portion and are arranged as a whole.

[0105] In the embodiment of the present application, in view of the situation that the stopper 30 is annular in structure, the second stopper sub-portion 30b is connected to the support layer 14, so as to meet the fixing requirements between the stopper 30 and the display panel 10. And because the surface of the support layer 14 in the thickness direction Z is usually flat, this design also helps to reduce the connection difficulty between the stopper 30 and the display panel 10, and improve the fixing reliability between the two.

[0106] It should be noted that the first limiting sub-portion 30a may be connected to the display panel 10, or the first limiting sub-portion 30a may not be connected to the display panel 10, and the embodiment of the present application does not limit this. If the first limiting sub-portion 30a is connected to the display panel 10, optionally, the first limiting sub-portion 30a may be connected to the protection portion 133, or the first limiting sub-portion 30a may also extend beyond the side of the binding portion 13 away from the bending portion 12 in the first direction X and be connected to the support layer 14.

[0107] In some embodiments, Figure 7 As shown, the limiting member 30 includes a connecting portion 33 connected to the display panel 10 and a limiting portion 31 protruding from the connecting portion 33 on a side away from the display panel 10 . In a direction parallel to the plane where the cover plate 20 is located, the connecting portion 33 is arranged beyond the display panel 10 .

[0108] The stopper 30 includes at least two structures, namely, a connection portion 33 and a stopper 31. The stopper 31 is a functional component of the stopper 30 for being installed in cooperation with the middle frame 50, and the connection portion 33 is a functional component of the stopper 30 for being connected to the display panel 10. According to different actual needs, the stopper 31 and the connection portion 33 may include the same material and be an integral structure, or the two may include different materials and be connected and fixed by welding or the like, which is not limited in the embodiment of the present application.

[0109] In the embodiment of the present application, the limiting portion 31 is located on the side of the connecting portion 33 away from the display panel 10, and is protruded relative to the connecting portion 33 in the thickness direction Z. In this way, on the one hand, the side of the connecting portion 33 away from the limiting portion 31 can be connected to the display panel 10, thereby reducing the influence of the limiting portion 31 on the connection between the connecting portion 33 and the display panel 10, and on the other hand, the side of the connecting portion 33 away from the display panel 10 can be plugged and matched with the bottom plate 53 of the middle frame 50, thereby reducing the influence of the display panel 10 on the matching installation between the limiting member 30 and the middle frame 50.

[0110] In addition, in a direction parallel to the plane where the cover plate 20 is located, the connecting portion 33 is arranged beyond the display panel 10. It can be seen that in addition to connecting the display panel 10, the connecting portion 33 is also used to cooperate with the display panel 10 and the cover plate 20 to form a groove-shaped structure C, thereby improving the structural reliability of the packaging glue 40.

[0111] The embodiment of the present application does not limit the specific shape and size relationship between the connection portion 33 and the limiting portion 31. For example, the projections of the connection portion 33 and the limiting portion 31 in the thickness direction Z are both strip-shaped structures, and are arranged at the lower frame position of the display module 100. Alternatively, the projection of the connection portion 33 in the thickness direction Z may be a ring-shaped structure. In this case, the projection of the limiting portion 31 in the thickness direction Z may be a strip-shaped structure arranged at a specific frame position, or may include a plurality of spaced strip-shaped structures, or may be a ring-shaped structure.

[0112] Further, in some optional embodiments, the projection of the limiting portion 31 in the thickness direction Z is located within the projection of the connecting portion 33 in the thickness direction Z. The projection of the limiting portion 31 in the thickness direction Z may overlap with the projection of the display panel 10 in the thickness direction Z, or the projection of the limiting portion 31 in the thickness direction Z may also be located outside the projection of the display panel 10 in the thickness direction Z.

[0113] In some embodiments, Figure 7 As shown, the projection of the limiting portion 31 in the thickness direction Z is located outside the projection of the display panel 10 in the thickness direction Z.

[0114] If the projection of the limiting part 31 in the thickness direction Z is in a strip structure and is arranged at the position of the lower frame, the limiting part 31 can be located on the side of the bending part 12 away from the display part 11 along the first direction X. When the projection of the limiting part 31 in the thickness direction Z is in an annular structure, the projection of the limiting part 31 in the thickness direction Z surrounds and encloses the projection of the display panel 10 in the thickness direction Z.

[0115] In the embodiment of the present application, by setting the projection of the limiting part 31 in the thickness direction Z outside the projection of the display panel 10 in the thickness direction Z, the fitting and installation positions between the limiting member 30 and the middle frame 50 can be misaligned with the display panel 10 in the direction parallel to the plane where the cover plate 20 is located, so as to increase the stress transmission path. During the use or transportation of the finally formed display device 200, the external stress transmitted from the middle frame 50 to the limiting member 30 cannot be directly transmitted to the display panel 10 along the thickness direction Z, thereby reducing the stress influence on the display panel 10 and improving the use reliability of the display device 200.

[0116] In some embodiments, please refer to Figure 5 、 Figure 11 and Figure 12 , the projection of the limiting member 30 in the thickness direction Z coincides with the edge of the projection of the cover plate 20 in the thickness direction Z, or the projection of the cover plate 20 in the thickness direction Z covers and exceeds the projection of the limiting member 30 in the thickness direction Z.

[0117] The limiting member 30 and the cover plate 20 can have various different size relationships. On this basis, the middle frame 50 will also have different size shapes. Specifically, the middle frame 50 includes a bottom plate 53 and side plates 54 connected to the periphery of the bottom plate 53. The side plates 54 are arranged on the outer peripheral side of the display module 100. If the projection of the cover plate 20 in the thickness direction Z covers and exceeds the projection of the limiting member 30 in the thickness direction Z, then combining Figure 5 it can be seen that part of the structure of the side plate 54 can be located below the cover plate 20, and their projections in the thickness direction Z overlap, which helps to reduce the size of the side plate 54 exceeding the display module 100 in the direction parallel to the plane where the cover plate 20 is located, thereby further reducing the frame size of the display device 200.

[0118] In another case, as Figure 12 shown, if the projection of the limiting member 30 in the thickness direction Z coincides with the edge of the projection of the cover plate 20 in the thickness direction Z, the side plate 54 can be completely located on one side of the cover plate 20 in the direction parallel to the plane where the cover plate 20 is located, and their projections in the thickness direction Z do not overlap.

[0119] In summary, in the embodiments of the present application, the limiting member 30 and the cover plate 20 can have various different dimensional relationships, so as to meet the usage requirements of different display devices 200, and have strong flexibility and applicability. Further considering the siphon phenomenon, in the embodiments of the present application, it is selected that the projection of the limiting member 30 in the thickness direction Z does not exceed the projection of the cover plate 20 in the thickness direction Z, so as to reduce the risk of overflow of the encapsulation adhesive 40 and improve the structural reliability of the encapsulation adhesive 40.

[0120] In some embodiments, please refer to Figures 13 to 15 , the limiting member 30 is provided with a through-hole structure 34 penetrating along the thickness direction Z, and the through-hole structure 34 is communicated with the groove-shaped structure C.

[0121] The through-hole structure 34 penetrates the limiting member 30 along the thickness direction Z. The number of the through-hole structures 34 can be one, or can also be multiple. Optionally, the number of the through-hole structures 34 is multiple, and the projections of the multiple through-hole structures 34 in the thickness direction Z are spaced around the circumference of the projection of the display panel 10 in the thickness direction Z.

[0122] The through-hole structure 34 can have various shapes. For example, the through-hole structure 34 can be a round-hole structure, or can also be a square-hole structure, or can also be a slit structure, etc. The specific shape and size of the through-hole structure 34 are not limited in the embodiments of the present application. Further, the through-hole structure 34 can also have various forming methods. Exemplarily, taking the connecting portion 33 in the limiting member 30 including a sheet metal part as an example, the through-hole structure 34 can be directly formed by punching the connecting portion 33, or a boss structure can be first stamped on the connecting portion 33 and then a hole is formed on the boss structure. Among them, as Figure 14 shown, the boss structure can be formed by the connecting portion 33 protruding towards the cover plate 20, or as Figure 13 shown, it can also be formed by the connecting portion 33 protruding away from the cover plate 20.

[0123] In the embodiments of the present application, by providing the through-hole structure 34 in the limiting member 30, the groove-shaped structure C can be connected to the external environment through the through-hole structure 34. Furthermore, during the formation of the encapsulation adhesive 40, the air in the groove-shaped structure C can be quickly discharged through the through-hole structure 34, so as to reduce the risk of problems such as overflow of the adhesive. In addition, the encapsulation adhesive 40 can also enter the through-hole structure 34, so as to enhance the bonding strength between the encapsulation adhesive 40 and the limiting member 30.

[0124] In some embodiments, please refer to Figure 16 and Figure 17 , the cover plate 20 includes a cover plate body 21 and a bending portion 22 integrally connected to the periphery of the cover plate body 21. In the direction away from the center of the cover plate 20, the bending portion 22 is bent towards the display panel 10.

[0125] The cover plate body 21 is a partial structure located at the center of the cover plate 20, and the bending part 22 is a partial structure located at the edge of the cover plate 20. The cross-sectional shape of the bending part 22 is curved, that is, the display module 100 is not in a flat state at the frame position but has a certain curvature.

[0126] In the embodiment of the present application, for the display device 200 with an edge bending, due to the influence of factors such as its own structural shape, the display device 200 has higher requirements for the encapsulation effect. On this basis, by adding a limiting member 30 in such a display device 200 and through the cooperation of the limiting member 30, the display panel 10 and the cover plate 20, a groove-shaped structure C for accommodating the encapsulation adhesive 40 is defined and formed. This design can improve the structural reliability of the encapsulation adhesive 40, thereby improving the encapsulation effect of the display device 200.

[0127] In a second aspect, the embodiment of the present application provides a display device 200. The display device 200 includes the display module 100 in any of the foregoing embodiments. A receiving groove 51 is defined on the surface of the middle frame 50 in the thickness direction Z. The bottom surface of the receiving groove 51 is recessed inward to form a limiting groove 52. The display panel 10 is located in the receiving groove 51, and a part of the limiting member 30 is located in the limiting groove 52.

[0128] The middle frame 50 protects the display module 100. Specifically, the middle frame 50 includes a bottom plate 53 and side plates 54 connected to the periphery of the bottom plate 53. The side plates 54 are arranged on the outer peripheral side of the display module 100, and the bottom plate 53 is arranged on one side of the display module 100 in the thickness direction Z. Among them, the bottom plate 53 and the side plates 54 jointly enclose to form the receiving groove 51, and the surface of the bottom plate 53 facing the receiving groove 51 is the bottom surface of the receiving groove 51. The limiting groove 52 is formed by the bottom surface on the bottom plate 53 being recessed inward.

[0129] It should be noted that the display device 200 provided in the embodiment of the present application has the beneficial effects of the display module 100 in any of the foregoing embodiments. For specific reference, please refer to the description of the beneficial effects of the display module 100 above, and the embodiment of the present application will not be elaborated here.

[0130] In a third aspect, please refer to Figure 18 and FIG. 19. The embodiment of the present application provides a manufacturing method of a display device 200. The manufacturing method includes:

[0131] S100: Bond the display panel and the cover plate.

[0132] Please refer to Figure 19a, in step S100, the cover plate 20 is disposed on one side of the display panel 10 in the thickness direction Z. Exemplarily, the display panel 10 includes a display portion 11, a bending portion 12, and a bonding portion 13. The display portion 11 and the bonding portion 13 are both connected to the bending portion 12, and the bonding portion 13 is bent to the side of the display portion 11 away from the cover plate 20 through the bending portion 12.

[0133] S110: Connect and set the display panel with the limiting member.

[0134] Please refer to Figure 19b , in step S110, the limiting member 30 is located on the side of the display panel 10 away from the cover plate 20, and the limiting member 30 extends beyond the display panel 10 with respect to the cover plate 20 to form a groove-like structure C. Among them, the shape of the limiting member 30 can have various forms. Exemplarily, the projection of the limiting member 30 in the thickness direction Z can be in an annular structure and is disposed at the peripheral side position of the display panel 10. Or the projection of the limiting member 30 in the thickness direction Z can be in a strip structure and is disposed at the lower border position.

[0135] S120: Form encapsulation glue in the groove-like structure.

[0136] Please refer to Figure 19c , in step S120, the encapsulation glue 40 can be formed in the groove-like structure C through the cooperation of rapid glue filling and dispensing. Specifically, glue can be rapidly filled in the groove-like structure C first. At this time, the glue droplets dropped into the groove-like structure C have a larger size and a larger quantity. Then when the glue is close to being flush with the edge of at least one of the cover plate 20 and the blocking member 60, glue is injected into the groove-like structure C in the form of dispensing. At this time, the glue droplets dropped into the groove-like structure C have a smaller size and a smaller quantity.

[0137] S130: Cooperate and fix the display panel with the middle frame.

[0138] Please refer to Figure 19d , in step S130, a receiving groove 51 is formed by inwardly recessing the surface of the middle frame 50 in the thickness direction Z, and a limiting groove 52 is formed by inwardly recessing the bottom surface of the receiving groove 51. The display panel 10 is located in the receiving groove 51, and a part of the limiting member 30 is located in the limiting groove 52. Specifically, the limiting portion 31 is located in the limiting groove 52.

[0139] In the embodiment of the present application, by adding a limiting member 30 and restricting the size and shape of the limiting member 30 and its position relative to the display panel 10, the display device 200 can have a groove-like structure C for accommodating the encapsulation glue 40, thereby improving the molding reliability of the encapsulation glue 40 and reducing the risk of problems such as glue overflow or glue shortage. Moreover, the limiting member 30 can also be assembled and cooperated with the middle frame 50, so that the relative position between the display module 100 and the middle frame 50 can be limited by means of the limiting member 30, reducing the risk of excessive displacement of the display module 100 relative to the middle frame 50, and improving the impact resistance and use reliability of the display device 200.

[0140] Although the embodiments disclosed in the present application are as above, the above content is only an embodiment adopted for the convenience of understanding the present application and is not intended to limit the present invention. Any person skilled in the art within the technical field to which the present application pertains can make any modifications and changes in the form of implementation and details without departing from the spirit and scope disclosed in the present application. However, the protection scope of the present application shall still be subject to the scope defined by the appended claims.

[0141] As described above, this is only the specific implementation manner of the present application. Those skilled in the art can clearly understand that for the sake of convenience and brevity of description, the replacement of other connection manners described above and the like can refer to the corresponding processes in the foregoing method embodiments and will not be repeated here. It should be understood that the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present application can easily think of various equivalent modifications or replacements, and these modifications or replacements should all be covered within the protection scope of the present application.

Claims

1. A display module, characterized in that, Comprising: A display panel; A cover plate, disposed on one side in the thickness direction of the display panel; A limiting member, connected to the side of the display panel facing away from the cover plate, a limiting portion is provided on the side of the limiting member facing away from the display panel, and the limiting portion is used for assembling with the middle frame; Sealing glue, disposed on the outer peripheral side of the display panel; Wherein, in a direction parallel to the plane where the cover plate is located, the limiting member and the cover plate extend beyond the display panel to form a groove-like structure for accommodating the sealing glue.

2. The display module according to claim 1, wherein The display panel includes a display portion, a bending portion, and a bonding portion. The display portion and the bonding portion are both connected to the bending portion, and the bonding portion is bent to the side of the display portion facing away from the cover plate through the bending portion; Wherein, the projection of the limiting member in the thickness direction overlaps with the projection of the bending portion in the thickness direction.

3. The display module according to claim 2, characterized in that, The projection of the limiting member in the thickness direction overlaps with the projection of the bonding portion in the thickness direction, and the limiting member is connected to the bonding portion.

4. The display module according to claim 2, wherein The bonding portion includes a body portion, a driving chip disposed on the side of the body portion facing away from the display portion, and a protection portion disposed on the side of the driving chip facing away from the display portion. The limiting member is disposed on the side of the protection portion facing away from the display portion and is connected to the protection portion; and / or, The display panel further includes a support layer disposed between the bonding portion and the display portion. In a direction parallel to the plane where the cover plate is located, both the support layer and the limiting member extend beyond one end of the bonding portion facing away from the bending portion, and the limiting member is connected to the support layer.

5. The display module according to claim 4, wherein The limiting member includes an avoidance hole, the avoidance hole penetrates through the limiting member in the thickness direction, and the projection of the driving chip in the thickness direction overlaps with the projection of the avoidance hole in the thickness direction.

6. The display module according to claim 2, wherein The bending portion is located on one side of the display portion in a first direction. The dimension of the limiting member in a second direction is smaller than the dimension of the display portion in the second direction. The first direction and the second direction are both parallel to the plane where the cover plate is located and intersect with each other.

7. The display module according to claim 6, wherein Further including a blocking member, the blocking member is filled in the groove-like structure, and the two blocking members are spaced apart in the second direction.

8. The display module according to claim 7, wherein The display portion extends beyond the bending portion in the second direction, and the two blocking members are respectively disposed on both sides of the bending portion along the second direction.

9. The display module according to claim 7, wherein The blocking member includes a first portion connected to the limiting member, and the first portion and the limiting member are made of the same material; and / or, The blocking member includes a buffer portion in contact with the display portion, and the structural strength of the buffer portion is less than the structural strength of the limiting member.

10. The display module according to claim 2, wherein, The projection of the limiting member in the thickness direction surrounds the periphery of the projection of the display panel in the thickness direction.

11. The display module according to claim 10, wherein The limiting member includes a first limiting sub-member and a second limiting sub-member integrally connected in the circumferential direction of the display panel. The projection of the first limiting sub-member in the thickness direction overlaps with the projection of the bonding portion in the thickness direction, and the projection of the second limiting sub-member in the thickness direction is located outside the projection of the bonding portion in the thickness direction. The display panel further includes a support layer disposed between the bonding portion and the display portion, and the second limiting sub-member is connected to the support layer.

12. The display module according to claim 1, wherein, The limiting member includes a connecting portion connected to the display panel, and the limiting portion protruding from a side of the connecting portion away from the display panel. In a direction parallel to the plane where the cover plate is located, the connecting portion extends beyond the display panel.

13. The display module according to claim 12, wherein The projection of the limiting portion in the thickness direction is located outside the projection of the display panel in the thickness direction.

14. The display module according to claim 1, wherein The projection of the limiting member in the thickness direction coincides with the edge of the projection of the cover plate in the thickness direction; or The projection of the cover plate in the thickness direction covers and extends beyond the projection of the limiting member in the thickness direction.

15. The display module according to claim 1, characterized in that, The limiting member is provided with a through-hole structure penetrating in the thickness direction, and the through-hole structure is communicated with the groove-like structure.

16. The display module according to claim 1, wherein, The cover plate includes a cover plate body and a bending portion integrally connected to the periphery of the cover plate body. In a direction away from the center of the cover plate, the bending portion is bent towards the display panel.

17. A display device, characterized in that, It includes a middle frame and the display module according to any one of claims 1 to 16. A receiving groove is formed by inward depression of the surface of the middle frame in the thickness direction, and a limiting groove is formed by inward depression of the bottom surface of the receiving groove. The display panel is located in the receiving groove, and a part of the limiting member is located in the limiting groove.

18. A method for manufacturing a display device, characterized in that, Including: The display panel and the cover plate are attached, and the cover plate is disposed on one side of the display panel in the thickness direction; The display panel and the limiting member are connected, and the limiting member is located on a side of the display panel away from the cover plate. The limiting member and the cover plate extend beyond the display panel to form a groove-like structure; An encapsulation adhesive is formed in the groove-like structure; The display panel and the middle frame are cooperatively fixed. A receiving groove is formed by inward depression of the surface of the middle frame in the thickness direction, and a limiting groove is formed by inward depression of the bottom surface of the receiving groove. The display panel is located in the receiving groove, and a part of the limiting member is located in the limiting groove.

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