Display module, display device and preparation method thereof

Abstract

This application provides a display module, a display device, and a method for manufacturing the same. The display module includes a display panel, a support module, and encapsulating adhesive. The display panel includes a display portion with a light-emitting structure. A cover plate is disposed on one side of the display portion in the thickness direction, and the support module is disposed on the side of the display portion away from the cover plate. In a direction parallel to the plane of the cover plate, the support module and the cover plate extend beyond the display panel to form a groove-like structure, and the encapsulating adhesive is at least partially located within the groove-like structure. The embodiments of this application can improve the reliability of the relative position of the encapsulating adhesive, reduce the risk of problems such as adhesive overflow or insufficient adhesive, thereby helping to improve the yield rate of the display device and improve the reliability of the display device in resisting sweat, alkali, and grease.

Description

Technical Field

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

[0002] With the development of display technology, display devices (such as mobile phones, tablets, wearable bracelets, or televisions) have been widely used, and users' requirements for display devices are gradually increasing, with display devices gradually developing towards thinner and lighter designs and full-screen designs. However, this has also led to increased manufacturing difficulty for display devices and higher requirements for manufacturing processes. Summary of the Invention

[0003] This application provides a display module, a display device, and a method for manufacturing the same, which can improve the yield rate of the display device.

[0004] In a first aspect, embodiments of this application provide a display module, which includes a display panel, a support module, and encapsulating adhesive. The display panel includes a display portion with a light-emitting structure. A cover plate is disposed on one side of the display portion in the thickness direction, and the support module is disposed on the side of the display portion away from the cover plate. In a direction parallel to the plane of the cover plate, the support module and the cover plate extend beyond the display panel to form a groove-like structure, and the encapsulating adhesive is at least partially located within the groove-like structure.

[0005] Secondly, embodiments of this application provide a display device, which includes at least a portion of the structure of the support module in any of the foregoing embodiments, a display panel, a cover plate, and encapsulating adhesive.

[0006] Thirdly, embodiments of this application provide a method for manufacturing a display device, including: The display panel and the cover plate are attached together. The display panel includes a display part with a light-emitting structure, and the cover plate is located on one side of the display part in the thickness direction. A support module is formed on the side of the display unit away from the cover plate. In a direction parallel to the plane of the cover plate, the support module and the cover plate extend beyond the display panel to form a groove structure. Encapsulating adhesive is formed within the groove-shaped structure.

[0007] This application provides a display module, a display device, and a method for manufacturing the same. Since both the support module and the cover plate extend beyond the display panel in a plane parallel to the cover plate, they can jointly define a groove-like structure. This groove-like structure can act as a barrier to the adhesive during the coating process, confining the encapsulating adhesive within the groove and maintaining its dimensional shape. This improves the reliability of the relative position of the encapsulating adhesive, reduces the risk of adhesive overflow or shortage, and consequently helps improve the yield rate of the display device and enhances its resistance to sweat, alkali, and grease. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the relative positions of the display panel, support layer, and cover plate in a display module provided in an embodiment of this application; Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure at point AA; Figure 3 This is a schematic diagram of the relative positions of the display panel, the first sacrificial layer, and the cover plate in another display module provided in this application embodiment; Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure at point BB; Figure 5 yes Figure 3 Schematic diagram of the cross-sectional structure at point CC; Figure 6 This is a schematic diagram showing the relative positions of the display panel, the second sacrificial layer, and the cover plate in another display module provided in this application embodiment; Figure 7 This is a cross-sectional structural diagram of a display module at BB provided in an embodiment of this application; Figure 8 This is a schematic diagram of the relative positions of the display panel, the first sacrificial layer, and the cover plate in another display module provided in this application embodiment; Figure 9 yes Figure 8 Schematic diagram of the cross-sectional structure at point DD; Figure 10 This is a cross-sectional structural diagram of another display module provided in an embodiment of this application; Figure 11This is a cross-sectional structural diagram of another display module provided in an embodiment of this application; Figure 12 This is a schematic diagram of the relative positions of the display panel, the first sacrificial layer, and the cover plate in another display module provided in this application embodiment; Figure 13 This is a cross-sectional structural schematic diagram of a display device provided in an embodiment of this application; Figure 14 This is a flowchart illustrating the manufacturing process of a display device according to an embodiment of this application; Figures 15a to 15c This is a schematic diagram of the process structure for manufacturing a display device according to an embodiment of this application; Figure 16 This is a flowchart illustrating the manufacturing process of another display device provided in this application embodiment; Figures 17a to 17c This is a schematic diagram of the process structure for manufacturing another display device provided in this application embodiment; Figure 18 This is a flowchart illustrating the manufacturing process of another display device provided in this application embodiment; Figures 19a to 19c This is a schematic diagram of the process structure for manufacturing another display device provided in this application embodiment; Figure 20 This is a flowchart illustrating the manufacturing process of another display device provided in this application embodiment; Figure 21 This is a schematic diagram of the manufacturing process of another display device provided in this application embodiment.

[0010] Marker explanation: 10. Display panel; 11. Display unit; 12. Bending part; 13. Binding part; 131. Body part; 132. Driver chip; 133. Protection part; 20. Cover plate; 30. Support module; 31. Support layer; 32. First sacrificial layer; 321. First sacrificial part; 321a. First main body part; 321b. First sub-part; 322. Second sacrificial part; 33. Second sacrificial layer; 331. Second main body part; 332. Second sub-part; 40. Sealing adhesive; 50. Ink layer; C. Groove structure; H. Through-hole structure; E1, First edge; E2, Second edge; E3, Third edge; E4, Fourth edge; X, first direction; Y, second direction; Z, thickness direction. Detailed Implementation

[0011] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0012] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0013] With the development of technology, display devices have also evolved, giving rise to full-screen displays. However, the demand for full-screen displays necessitates a reduction in the bezel size, which in turn reduces the overall protective performance of the display device. Nevertheless, to meet practical usage requirements, display devices need to possess sufficiently high resistance to sweat, alkali, and grease.

[0014] Based on this, related technologies apply adhesive around the sides of the display module to prevent sweat, alkali, and grease from penetrating into the module, thereby improving the reliability of the resulting display device. However, due to limitations in process precision and other factors, the adhesive used for sealing the sides of the display module suffers from poor coating precision, large fluctuations, and problems such as adhesive overflow and insufficient adhesive.

[0015] In view of this, firstly, please refer to Figure 1 and Figure 2This application provides a display module, which includes a display panel 10, a support module 30, and an encapsulating adhesive 40. The display panel 10 includes a display portion 11, which has a light-emitting structure (not shown in the figure). A cover plate 20 is disposed on one side of the display portion 11 in the thickness direction Z, and the support module 30 is disposed on the side of the display portion 11 away from the cover plate 20. In a direction parallel to the plane of the cover plate 20, the support module 30 and the cover plate 20 extend beyond the display panel 10 to form a groove structure C, and the encapsulating adhesive 40 is at least partially located within the groove structure C.

[0016] The display module is used to subsequently form a display device. Depending on the actual needs, the display device may include all the structures in the display module, or it may only include some of the structures in the display module. That is, during the process of preparing and forming the display device, some of the film layer structures in the display module can be selectively removed.

[0017] The display unit 11 is a functional component in the display panel 10 used to achieve the display effect. The display unit 11 typically includes various layers of different films stacked together. For example, the display unit 11 includes an array layer, a light-emitting layer, and an optical adhesive layer stacked together, and the light-emitting structure can be disposed in the light-emitting layer. In addition to including the display unit 11, the display panel 10 may also have other structures as needed. The specific composition and structure of the display panel 10 are not limited in the embodiments of this application.

[0018] The cover plate 20 is disposed on one side of the display unit 11 in the thickness direction Z. For example, the cover plate 20 can be disposed on the light-emitting side of the display unit 11 and fitted against the display unit 11. The cover plate 20 can protect the display panel 10. In a direction parallel to the plane of the cover plate 20, a portion of the cover plate 20 extends beyond the display panel 10. Optionally, the outer contour of the display panel 10 projected onto the cover plate 20 can be recessed relative to the outer contour of the cover plate 20. Furthermore, an ink layer 50 can be disposed at the position of the cover plate 20 extending beyond the display panel 10. The ink layer 50 has a certain light-shielding effect, which helps to reduce the reflection problem corresponding to the subsequently formed display device and improve the display effect.

[0019] The support module 30 is disposed on the side of the display section 11 away from the cover plate 20, that is, the support module 30 and the cover plate 20 are disposed on different sides of the display section 11. The cover plate 20 is disposed on the light-emitting side of the display section 11, and the support module 30 is disposed on the backlight side of the display section 11. The support module 30 can be attached to the display panel 10. Since the display panel 10 may include other structures in addition to the display section 11, the support module 30 can be at least partially attached to the display section 11, or the support module 30 can be at least partially attached to other structures in the display panel 10, depending on the actual needs.

[0020] The specific composition of the film layers inside the support module 30 is not limited in the embodiments of this application. For example, the support module 30 may include only one film layer structure, or the support module 30 may include multiple film layer structures stacked in the thickness direction Z. Furthermore, during the fabrication of the display device, all film layer structures in the support module 30 may be completely retained, or at least some film layer structures in the support module 30 may be selectively removed; the embodiments of this application do not limit this.

[0021] Similar to the cover plate 20, the support module 30 also needs to extend beyond the display panel 10 in a direction parallel to the plane of the cover plate 20 to form a groove structure C. The groove structure C is used to accommodate at least a portion of the encapsulating adhesive 40. In related technologies, the display module does not have a groove structure C; the encapsulating adhesive 40 is dripped onto the periphery of the display module by dispensing. Due to limitations in process precision, this can easily lead to problems such as excess adhesive or insufficient adhesive, which is detrimental to the yield and reliability of the subsequently formed display device.

[0022] In this embodiment, since both the support module 30 and the cover plate 20 extend beyond the display panel 10 in the plane parallel to the cover plate 20, they can jointly define a groove structure C. The presence of the groove structure C can block the adhesive during the coating process, thus confining the encapsulating adhesive 40 to the location of the groove structure C and maintaining a certain size and shape. This improves the reliability of the relative position of the encapsulating adhesive 40, reduces the risk of adhesive overflow or insufficient adhesive, and helps to improve the yield rate of the display device, as well as the reliability of the display device in resisting sweat, alkali, and grease.

[0023] It should be noted that the display panel 10 may include other structures besides the display section 11. Therefore, in order to form the groove structure C, the support module 30 and the cover plate 20 need to extend beyond the display panel 10 simultaneously, rather than only extending beyond the display section 11. The specific positional relationship between the display panel 10, the support module 30, and the cover plate 20 is not limited in this embodiment, as long as the portion of the support module 30 and the cover plate 20 extending beyond the display panel 10 can jointly define the groove structure C.

[0024] In some embodiments, such as Figure 1 and Figure 2 As shown, the support module 30 includes a support layer 31 that is attached to the display unit 11. In a direction parallel to the plane of the cover plate 20, the support layer 31 extends beyond the display unit 11 to form a groove structure C.

[0025] The support layer 31 is in close contact with the display unit 11, and can support and bear the load for the display unit 11, reducing the risk of excessive deformation of the display unit 11 during subsequent use. Optionally, the support layer 31 may include a metallic material, such as a steel sheet or other structure with high structural strength.

[0026] In related technologies, the orthographic projection of the support layer 31 onto the cover plate 20 is typically located within the orthographic projection of the display section 11 onto the cover plate 20. That is, in the direction parallel to the plane of the cover plate 20, the support layer 31 does not extend beyond the display section 11. However, in this embodiment, the size and shape of the support layer 31 have been adjusted so that, in the direction parallel to the plane of the cover plate 20, the support layer 31 can extend beyond the display section 11, thereby defining a groove-shaped structure C together with the cover plate 20.

[0027] This design can form a groove structure C in the display module without adding other film layers, thereby improving the reliability of the relative position of the encapsulating adhesive 40 and reducing the risk of problems such as adhesive overflow or insufficient adhesive. The structure is simple and has strong practicality.

[0028] In some embodiments, please refer to Figure 3 and Figure 4 The support module 30 includes a support layer 31 that is fitted to the display unit 11, and a first sacrificial layer 32 located on the side of the support layer 31 facing away from the display unit 11. The orthographic projection of the display unit 11 on the cover plate 20 covers the orthographic projection of the support layer 31 on the cover plate 20. The first sacrificial layer 32 extends beyond the display panel 10 in a direction parallel to the plane of the cover plate 20.

[0029] The support module 30 includes at least two structural parts: a support layer 31 and a first sacrificial layer 32. The support layer 31 is sandwiched between the first sacrificial layer 32 and the display unit 11. The support layer 31 is attached to the display unit 11, while the first sacrificial layer 32 is spaced apart from the display unit 11 in the thickness direction Z. Further, the first sacrificial layer 32 can be attached to the support layer 31, or it can be spaced apart from the support layer 31 in the thickness direction Z, as long as the first sacrificial layer 32 is located on the side of the support layer 31 opposite to the display unit 11.

[0030] The orthographic projection of the display unit 11 on the cover plate 20 covers the orthographic projection of the support layer 31 on the cover plate 20. That is, in the direction parallel to the plane where the cover plate 20 is located, the support layer 31 does not extend beyond the display unit 11. In this embodiment, the structure of the support layer 31 is not adjusted. Instead, a first sacrificial layer 32 is added to the side of the support layer 31 away from the display unit 11. The first sacrificial layer 32 needs to extend beyond the display panel 10, so that it together with the cover plate 20 defines a groove structure C.

[0031] It should be noted that although the display module includes a first sacrificial layer 32, during the manufacturing process, after the encapsulating adhesive 40 is shaped and fixed, the first sacrificial layer 32 can be selectively removed or retained. That is, the final display device may not include the first sacrificial layer 32. Of course, in some other embodiments, the final display device may also include the first sacrificial layer 32. This application does not limit this.

[0032] In summary, in this embodiment, by adding a first sacrificial layer 32 to the display module, a groove-shaped structure C can be formed in the display module without affecting other film layer structures. This improves the reliability of the relative position of the encapsulating adhesive 40 and reduces the risk of adhesive overflow or insufficient adhesive. Furthermore, during the subsequent formation of the display device, the first sacrificial layer 32 can be selectively removed to ensure that the final display device is consistent with the structure of a conventional display device, or the first sacrificial layer 32 can be selectively retained to improve the support effect on the display section 11, demonstrating strong flexibility and practicality.

[0033] It should be noted that the dimensions of the first sacrificial layer 32 extending beyond the display panel 10 are not limited in this embodiment. Optionally, the encapsulating adhesive 40 extends beyond the display panel 10 by a first preset distance in a direction parallel to the plane of the cover plate 20, and the dimensions of the first sacrificial layer 32 extending beyond the display panel 10 need to be no less than the first preset distance.

[0034] In some embodiments, such as Figure 3 and Figure 4 As shown, the display panel 10 includes a bent portion 12 connected to the display section 11 and a binding portion 13 connected to the bent portion 12. The binding portion 13 is bent through the bent portion 12 to the side of the display section 11 opposite to the cover plate 20. In a direction parallel to the plane of the cover plate 20, the first sacrificial layer 32 extends beyond at least one of the display section 11 and the bent portion 12.

[0035] The display unit 11 is a component in the display panel 10 used to achieve display effects. Normally, the side of the display unit 11 that is away from the binding part 13 is the light-emitting side of the display unit 11, which is used to display specific images or videos to the user.

[0036] The binding part 13 and the display part 11 are spaced apart in the thickness direction Z, and are connected by the bending part 12. Based on this, as can be seen from the accompanying drawings, part of the structure in the support layer 31 is located between the binding part 13 and the display part 11, and the first sacrificial layer 32 can be at least partially located at the same height as the binding part 13 in the thickness direction Z, or the first sacrificial layer 32 can also be at least partially located on the side of the binding part 13 away from the display part 11.

[0037] Furthermore, in order to define the groove-shaped structure C, the first sacrificial layer 32 needs to extend beyond at least one of the display portion 11 and the bent portion 12. Specifically, in conjunction with the attached... Figure 3 In the first direction X, the display unit 11 may include a first edge E1 and a second edge E2, with the second edge E2 connected to the bending portion 12. Based on this, the first sacrificial layer 32 and the cover plate 20 located near the first edge E1 need to extend beyond the display unit 11 to define the groove structure C. However, if the first sacrificial layer 32 and the cover plate 20 located near the second edge E2 only extend beyond the display unit 11 but not beyond the bending portion 12, a groove structure cannot be formed. Therefore, the first sacrificial layer 32 and the cover plate 20 located near the second edge E2 need to extend beyond the display unit 11 and further beyond the bending portion 12 to define the groove structure C.

[0038] In this embodiment, depending on the different structures at different locations of the display panel 10, the first sacrificial layer 32 needs to selectively extend beyond at least one of the display portion 11 and the bent portion 12 so that it can jointly define the groove structure C with the cover plate 20, thereby improving the reliability of the relative position of the encapsulating adhesive 40 and reducing the risk of problems such as adhesive overflow or insufficient adhesive.

[0039] In some embodiments, please refer to Figures 3 to 5 The display portion 11 includes opposing first edges E1 and second edges E2 in the first direction X, and opposing third edges E3 and fourth edges E4 in the second direction Y. The second edge E2 is connected to the bending portion 12. The first direction X and the second direction Y intersect. The first sacrificial layer 32 includes a first sacrificial portion 321, which extends beyond at least one of the first edge E1, the third edge E3, and the fourth edge E4.

[0040] Both the first direction X and the second direction Y are parallel to the plane of the cover plate 20. Optionally, the first direction X is perpendicular to the second direction Y. Further, taking the display unit 11 as a rectangular structure in the orthographic projection of the cover plate 20 as an example, the first direction X can be the length direction of the display unit 11, and the second direction Y can be the width direction of the display unit 11.

[0041] The display unit 11 has a first edge E1 and a second edge E2 opposite each other in the first direction X, and both the first edge E1 and the second edge E2 can extend along the second direction Y. The display unit 11 also has a third edge E3 and a fourth edge E4 opposite each other in the second direction Y, and both the third edge E3 and the fourth edge E4 can extend along the first direction X.

[0042] The second edge E2 is connected to the bend 12, so the bend 12 extends beyond the display portion 11 in the first direction X. Therefore, in the first direction X, the two edges of the display panel 10 correspond to the first edge E1 and the edge of the bend 12 that is away from the display portion 11 in the first direction X, respectively. In the second direction Y, the display portion 11 usually extends beyond the bend 12 and the binding portion 13, so the two edges of the display panel 10 in the second direction Y correspond to the third edge E3 and the fourth edge E4, respectively.

[0043] Based on this, the first sacrificial layer 32 in this embodiment includes a first sacrificial portion 321. Furthermore, this embodiment sets the first sacrificial portion 321 to extend beyond at least one of the first edge E1, the third edge E3, and the fourth edge E4, allowing the first sacrificial portion 321 to extend beyond at least one edge of the display panel 10 in the first direction X or the second direction Y. This enables the first sacrificial portion 321 to jointly define a groove structure C with the cover plate 20, thereby improving the reliability of the relative position of the encapsulating adhesive 40 and reducing the risk of adhesive overflow or insufficient adhesive. Further, in some optional embodiments, the first sacrificial portion 321 extends beyond the first edge E1, the third edge E3, and the fourth edge E4 simultaneously.

[0044] In some embodiments, the orthographic projection of the binding portion 13 onto the cover plate 20 is located outside the orthographic projection of the first sacrificial portion 321 onto the cover plate 20.

[0045] The first sacrificial portion 321 can be directly attached to the support layer 31, or it can be spaced apart from the support layer 31. Furthermore, in the thickness direction Z, the first sacrificial portion 321 can be located at the same height as the binding portion 13. To further reduce structural interference between the first sacrificial portion 321 and the binding portion 13, the dimensions and shape of the first sacrificial portion 321 are adjusted in this embodiment, so that the orthographic projection of the binding portion 13 onto the cover plate 20 is outside the orthographic projection of the first sacrificial portion 321 onto the cover plate 20. This reduces the impact of the first sacrificial portion 321 on the structure of the binding portion 13 and improves the structural reliability of the display module.

[0046] In some embodiments, such as Figures 3 to 5 As shown, the first sacrificial part 321 includes a first main body part 321a and a first branch 321b located on one side of the first main body part 321a in the first direction X. The first main body part 321a is located on one side of the orthographic projection of the cover plate 20 along the first direction X, and the first branch 321b is located on at least one side of the orthographic projection of the binding part 13 in the cover plate 20 along the second direction Y.

[0047] As can be seen from the foregoing, in order to reduce structural interference between the first sacrificial part 321 and the binding part 13, it is necessary to adjust the size and structure of the first sacrificial part 321. Based on this, the embodiments of this application adjust the structure of the first sacrificial part 321 so that the first sacrificial part 321 includes at least two structural parts: a first main body part 321a and a first sub-part 321b.

[0048] The first main body portion 321a is the main structure of the first sacrificial portion 321. The orthographic projection of the first main body portion 321a onto the cover plate 20 is located along the first direction X on one side of the orthographic projection of the binding portion 13 onto the cover plate 20. Specifically, the orthographic projection of the first main body portion 321a onto the cover plate 20 is located on the side of the orthographic projection of the binding portion 13 onto the cover plate 20 closer to the first edge E1. Furthermore, in a direction parallel to the plane of the cover plate 20, the first main body portion 321a may extend beyond at least one of the first edge E1, the third edge E3, and the fourth edge E4.

[0049] The first portion 321b is connected to the first main body portion 321a. The first portion 321b and the first main body portion 321a may be made of the same material, or the first portion 321b and the first main body portion 321a may be made of different materials. Optionally, the first main body portion 321a and the first portion 321b are integrally formed.

[0050] The orthographic projection of the first portion 321b onto the cover plate 20 is located along the second direction Y on at least one side of the orthographic projection of the binding portion 13 onto the cover plate 20. The number of first portions 321b can be one or two. When there is only one first portion 321b, its orthographic projection onto the cover plate 20 is located only on one side of the orthographic projection of the binding portion 13 onto the cover plate 20 in the second direction Y. When there are two first portions 321b, their orthographic projections onto the cover plate 20 are respectively located on both sides of the orthographic projection of the binding portion 13 onto the cover plate 20 in the second direction Y. Further, optionally, in a direction parallel to the plane of the cover plate 20, the second portion 332 extends beyond at least one of the third edge E3 and the fourth edge E4.

[0051] In this embodiment of the application, in order to reduce the influence of the first sacrificial part 321 on the binding part 13, the size and structure of the first sacrificial part 321 are adjusted so that the first sacrificial part 321 includes both a first main body part 321a and a first sub-part 321b. The first main body part 321a and the first sub-part 321b are located on different sides of the orthographic projection of the binding part 13 on the cover plate 20 along the first direction X and the second direction Y, respectively. This reduces the influence between the first sacrificial part 321 and the binding part 13 and improves the reliability of the relative position structure between the two.

[0052] In some embodiments, in a direction parallel to the plane of the cover plate 20, the first main body portion 321a extends beyond the first edge E1, the third edge E3, and the fourth edge E4. There are two first portions 321b, whose orthographic projections onto the cover plate 20 are respectively located on either side of the orthographic projection of the binding portion 13 onto the cover plate 20. In a direction parallel to the plane of the cover plate 20, the two first portions 321b extend beyond the third edge E3 and the fourth edge E4, respectively.

[0053] As can be seen from the foregoing, the first main body 321a is located on one side of the orthographic projection of the binding part 13 on the cover plate 20 along the first direction X, and the two first parts 321b are respectively located on both sides of the orthographic projection of the binding part 13 on the cover plate 20 along the second direction Y.

[0054] Furthermore, in this embodiment of the application, the first main body portion 321a is configured to extend beyond the first edge E1, the third edge E3, and the fourth edge E4 in a direction parallel to the plane where the cover plate 20 is located. Specifically, the first main body portion 321a may extend beyond the first edge E1 in the first direction X, and the first main body portion 321a also extends beyond the third edge E3 and the fourth edge E4 in the second direction Y.

[0055] In this design, at the first edge E1, the portion of the first main body 321a and the cover plate 20 extending beyond the display panel 10 can be defined to form a groove-shaped structure C, satisfying the preparation requirements of the encapsulating adhesive 40 at the first edge E1. Similarly, at the third edge E3 and the fourth edge E4, the portion of the first main body 321a and the cover plate 20 extending beyond the display panel 10 can also be defined to form a groove-shaped structure C, satisfying the preparation requirements of the encapsulating adhesive 40 at the third edge E3 and the fourth edge E4. In other words, the presence of the first main body 321a can satisfy the adhesive application requirements of the display panel 10 at the third edge E3, the fourth edge E4, and at least a portion of the first edge E1.

[0056] Furthermore, in the direction parallel to the plane of the cover plate 20, the two first portions 321b extend beyond the third edge E3 and the fourth edge E4, respectively. Specifically, the two first portions 321b extend beyond the third edge E3 and the fourth edge E4, respectively, in the second direction Y.

[0057] In this design, at the third edge E3 and the fourth edge E4, the two first portions 321b and the portion of the cover plate 20 extending beyond the display panel 10 can define a groove-shaped structure C, satisfying the preparation requirements of the encapsulating adhesive 40 at the third edge E3 and the fourth edge E4. In other words, the presence of the first portion 321b can satisfy the adhesive application requirements of the display panel 10 at the third edge E3 and the fourth edge E4.

[0058] In some embodiments, please refer to Figure 3 , Figure 6 as well as Figure 7 The support module 30 also includes a second sacrificial layer 33 disposed between the first sacrificial part 321 and the support layer 31. In the direction parallel to the plane where the cover plate 20 is located, the first sacrificial part 321 and the support layer 31 are disposed beyond the second sacrificial layer 33.

[0059] The second sacrificial layer 33 is sandwiched between the first sacrificial portion 321 and the support layer 31. Exemplarily, the second sacrificial layer 33 can be simultaneously attached to both the first sacrificial layer 321 and the support layer 31. Furthermore, in the direction parallel to the plane of the cover plate 20, both the first sacrificial portion 321 and the support layer 31 extend beyond the second sacrificial layer 33, while the support layer 31 does not extend beyond the display panel 10. Therefore, the second sacrificial layer 33 does not extend beyond the display panel 10, meaning that the second sacrificial layer 33 does not define the groove structure C together with the cover plate 20.

[0060] In this embodiment, since the support layer 31 extends beyond the second sacrificial layer 33 in the plane parallel to the cover plate 20, a portion of the support layer 31 on the side facing away from the display portion 11 is not covered by the second sacrificial layer 33. Furthermore, since the second sacrificial layer 33 can space the support layer 31 and the first sacrificial portion 321 in the thickness direction Z, a portion of the support layer 31 on the side facing away from the display portion 11 will not adhere to the first sacrificial portion 321. In this case, during the adhesive application process, some adhesive can move to the surface of the support layer 31 on the side facing away from the display portion 11 and come into contact with the support layer 31. That is, the support layer 31 can come into contact with the encapsulating adhesive 40. This helps to reduce the risk of grease or other substances penetrating the support layer 31 with the help of the encapsulating adhesive 40, thereby further improving the reliability of the subsequent formation of the display device.

[0061] The specific shape of the second sacrificial layer 33 is not limited in this embodiment. Optionally, the outer contour of the second sacrificial layer 33 projected onto the cover plate 20 may be the same as or similar to the outer contour of the first sacrificial portion 321 projected onto the cover plate 20. Furthermore, the material composition of the second sacrificial layer 33 is not limited in this embodiment. Optionally, the second sacrificial layer 33 and the first sacrificial portion 321 may include the same material.

[0062] In some embodiments, such as Figure 6 As shown, the orthographic projection of the binding part 13 onto the cover plate 20 is located outside the orthographic projection of the second sacrificial layer 33 onto the cover plate 20.

[0063] In this embodiment, similar to the first sacrificial part 321, in order to reduce structural interference between the binding part 13 and the second sacrificial layer 33, the size and shape of the second sacrificial layer 33 are adjusted so that the orthographic projection of the binding part 13 on the cover plate 20 is outside the orthographic projection of the second sacrificial layer 33 on the cover plate 20, thereby reducing the influence of the second sacrificial layer 33 on the structure of the binding part 13 and improving the structural reliability of the display module.

[0064] In some embodiments, such as Figure 3 , Figure 6 as well as Figure 7 As shown, the second sacrificial layer 33 includes a second main body 331 and a second portion 332 located on one side of the second main body 331 in the first direction X. The second main body 331 is located on the side of the orthographic projection of the binding portion 13 on the cover plate 20 along the first direction X. The second portion 332 is located on at least one side of the orthographic projection of the binding portion 13 on the cover plate 20 along the second direction Y.

[0065] As can be seen from the foregoing, in order to reduce structural interference between the second sacrificial layer 33 and the binding part 13, it is necessary to adjust the size and structure of the second sacrificial layer 33. Based on this, the embodiment of this application adjusts the structure of the second sacrificial layer 33 so that the second sacrificial layer 33 includes at least two structural parts: a second main body part 331 and a second sub-part 332.

[0066] The second main body portion 331 is the main structure in the second sacrificial layer 33. The orthographic projection of the second main body portion 331 onto the cover plate 20 is located along the first direction X on the side where the binding portion 13 is projected onto the cover plate 20. Specifically, the orthographic projection of the second main body portion 331 onto the cover plate 20 is located on the side of the binding portion 13 projected onto the cover plate 20 closer to the first edge E1. Furthermore, in a direction parallel to the plane of the cover plate 20, the second main body portion 331 is recessed relative to the first edge E1, the third edge E3, and the fourth edge E4.

[0067] The second portion 332 is connected to the second main body portion 331. The second portion 332 and the second main body portion 331 may be made of the same material, or they may be made of different materials. Optionally, the second portion 332 and the second main body portion 331 are integrally formed.

[0068] The second portion 332, when projected onto the cover plate 20 along the second direction Y, is located on at least one side of the projection of the binding portion 13 onto the cover plate 20. The number of second portions 332 can be one or two. When there is only one second portion 332, its projection onto the cover plate 20 is located only on one side of the projection of the binding portion 13 onto the cover plate 20 along the second direction Y. When there are two second portions 332, their projections onto the cover plate 20 are respectively located on both sides of the projection of the binding portion 13 onto the cover plate 20.

[0069] In this embodiment of the application, in order to reduce the influence of the second sacrificial layer 33 on the binding part 13, the size and structure of the second sacrificial layer 33 are adjusted so that the second sacrificial layer 33 includes both a second main body part 331 and a second sub-part 332. The orthographic projections of the second main body part 331 and the second sub-part 332 on the cover plate 20 are respectively located on different sides of the orthographic projection of the binding part 13 on the cover plate 20 along the first direction X and the second direction Y, thereby reducing the influence between the second sacrificial layer 33 and the binding part 13 and improving the reliability of the relative position structure between the two.

[0070] In some embodiments, please refer to Figure 8 and Figure 9 The first sacrificial layer 32 includes a second sacrificial portion 322, which is disposed on the side of the binding portion 13 opposite to the display portion 11. In a direction parallel to the plane of the cover plate 20, the second sacrificial portion 322 extends beyond the bending portion 12.

[0071] The second sacrificial part 322 is located on the side of the binding part 13 opposite to the display part 11, and the second sacrificial part 322 can be fitted to the binding part 13. The material composition of the second sacrificial part 322 is not limited in this embodiment. Optionally, the second sacrificial part 322 and the first sacrificial part 321 may include the same material.

[0072] In this embodiment of the application, the second sacrificial portion 322 is provided beyond the bending portion 12 in the direction parallel to the plane where the cover plate 20 is located. Specifically, in the first direction X, the second sacrificial portion 322 is provided beyond the bending portion 12, so that the second sacrificial portion 322 and the cover plate 20 can be jointly defined as a groove structure C, thereby improving the reliability of the relative position of the encapsulating adhesive 40 and reducing the risk of problems such as adhesive overflow or insufficient adhesive.

[0073] It should be noted that the second sacrificial portion 322 extends beyond the binding portion 13 and the bending portion 12 in the first direction X, but the dimensions of the second sacrificial portion 322 in the second direction Y are not limited in this embodiment. Optionally, the second sacrificial portion 322 also extends beyond the binding portion 13 in the second direction Y.

[0074] Furthermore, depending on the actual needs, the first sacrificial layer 32 may only include the first sacrificial part 321, or the first sacrificial layer 32 may only include the second sacrificial part 322, or the first sacrificial layer 32 may include both the first sacrificial part 321 and the second sacrificial part 322. This application embodiment does not impose any restrictions on this.

[0075] In some embodiments, such as Figure 8 and Figure 9 As shown, the bonding portion 13 includes a body portion 131, a driving chip 132 disposed on the side of the body portion 131 opposite to the display portion 11, and a protective portion 133 disposed on the side of the driving chip 132 opposite to the display portion 11. The projection of the body portion 131 onto the cover plate 20 covers and extends beyond the projection of the protective portion 133 onto the cover plate 20. The second sacrificial portion 322 is disposed on the side of the protective portion 133 opposite to the display portion 11 and is spaced apart from the body portion 131 in the thickness direction Z.

[0076] The bonding part 13 includes at least a body part 131, a driver chip 132, and a protection part 133. The driver chip 132 is disposed on the side of the body part 131 opposite to the display part 11. The driver chip 132 can be of various types, such as a display driver chip 132 and a touch driver chip 132. The display driver chip 132 is used to store image data, generate driving voltage, and can also improve image quality through customized algorithms. The touch driver chip 132 mainly implements touch signal processing and is an essential component of a display device with touch functionality. Of course, the display driver chip 132 and the touch driver chip 132 can also be integrated into one unit disposed on the body part 131.

[0077] The protection part 133 is disposed on the side of the driver chip 132 opposite to the display part 11, and the protection part 133 can protect the driver chip 132. Further optionally, the protection part 133 can adopt a structure such as tape, so that the protection part 133 can also be bonded and fixed to the body part 131, thereby improving the reliability of the relative position between the driver chip 132 and the body part 131.

[0078] Furthermore, in this embodiment, the second sacrificial part 322 is disposed on the side of the protective part 133 away from the display part 11, so that the main body part 131 and the second sacrificial part 322 are spaced apart in the thickness direction Z. In this way, some structures in the main body part 131 will not be attached to the second sacrificial part 322. As a result, during the adhesive application process, some adhesive can move to the surface of the main body part 131 away from the display part 11 and come into contact with the main body part 131. That is, the bonding part 13 can also come into contact with the encapsulating adhesive 40. This helps to reduce the risk of grease and other substances intruding into the bonding part 13 by means of the encapsulating adhesive 40, and improves the reliability of the bonding part 13.

[0079] In some embodiments, please refer to Figure 10 and Figure 11 The first sacrificial layer 32 is provided with a through hole structure H that extends through the thickness direction Z, and the through hole structure H is connected to the groove structure C.

[0080] The through-hole structure H penetrates the first sacrificial layer 32 along the thickness direction Z. The number of through-hole structures H can be one or more. When the first sacrificial layer 32 includes both a first sacrificial portion 321 and a second sacrificial portion 322, the through-hole structure H can be provided only on the first sacrificial portion 321, or the through-hole structure H can be provided only on the second sacrificial portion 322, or the through-hole structure H can be located on both the first sacrificial portion 321 and the second sacrificial portion 322.

[0081] The through-hole structure H can take many forms. For example, the through-hole structure H can be a round hole, a square hole, or a slit structure. The specific shape and size of the through-hole structure H are not limited in the embodiments of this application.

[0082] In this embodiment, by providing a through-hole structure H within the first sacrificial layer 32, the grooved structure C can be connected to the external environment via the through-hole structure H. Furthermore, during the adhesive application process, air inside the grooved structure C can be quickly expelled via the through-hole structure H, thereby reducing the risk of adhesive overflow and other problems.

[0083] In some embodiments, please refer to Figures 10 to 12 The number of through-hole structures H is multiple, and the multiple through-hole structures H are arranged around the display panel 10 on the periphery of the orthogonal projection of the cover plate 20.

[0084] Multiple through-hole structures H can communicate with the groove structure C, thereby improving the connectivity between the groove structure C and the external environment. Furthermore, this embodiment adjusts the arrangement of the multiple through-hole structures H so that the multiple through-hole structures H are spaced around the display panel 10 at intervals around the orthographic projection of the cover plate 20. This allows the multiple through-hole structures H to be arranged at different positions around the display panel 10, and the encapsulating adhesive 40 is also typically arranged around the periphery of the display panel 10. This design helps reduce the risk of adhesive overflow when applying the encapsulating adhesive 40 at different locations, further improving the application accuracy of the encapsulating adhesive 40, and increasing the yield and reliability of the subsequently formed display device.

[0085] Secondly, please refer to Figure 13 This application provides a display device, which includes at least a portion of the support module in the display module of any of the foregoing embodiments, a display panel 10, a cover plate 20, and an encapsulating adhesive 40.

[0086] As can be seen from the foregoing, depending on the actual needs, the display device may include all the structures in the support module 30, or it may only include a portion of the structures in the support module 30. Specifically, when the support film layer includes a first sacrificial layer and a second sacrificial layer, the first sacrificial layer and the second sacrificial layer can be removed during the manufacturing process of the display device, so that the final display device does not include the first sacrificial layer and the second sacrificial layer. Alternatively, at least one of the first sacrificial layer and the second sacrificial layer may be retained, so that the final display device can include at least one of the first sacrificial layer and the second sacrificial layer.

[0087] It should be noted that the display device provided in this application embodiment has the beneficial effects of the display module in any of the foregoing embodiments. For details, please refer to the foregoing description of the beneficial effects of the display module. This application embodiment will not repeat the description.

[0088] Thirdly, please refer to Figure 14 As shown in Figure 15, this application embodiment provides a method for manufacturing a display device, including: S100: Display panel and cover plate are fitted together.

[0089] Please see Figure 15a In step S100, the display panel 10 includes a display section 11, which is provided with a light-emitting structure. A cover plate 20 is disposed on one side of the display section 11 along the thickness direction Z. The display section 11 is a functional component of the display panel 10 used to achieve the display effect. The display section 11 typically includes multiple stacked film layers. For example, the display section 11 includes a stacked array layer, a light-emitting layer, and an optical adhesive layer, etc., and the light-emitting structure can be disposed in the light-emitting layer. Besides including the display section 11, the display panel 10 may also have other structures as needed. The specific composition of the display panel 10 is not limited in this embodiment.

[0090] The cover plate 20 is disposed on one side of the display unit 11 in the thickness direction Z. For example, the cover plate 20 may be disposed on the light-emitting side of the display unit 11 and be fitted to the display unit 11. The cover plate 20 can protect the display panel 10. In a direction parallel to the plane where the cover plate 20 is located, the cover plate 20 extends beyond the display panel 10. Optionally, the outer contour of the display panel 10 projected onto the cover plate 20 may be recessed relative to the outer contour of the cover plate 20.

[0091] S110: A support module is formed on the side of the display unit away from the cover plate.

[0092] Please see Figure 15bIn step S110, both the support module 30 and the cover plate 20 extend beyond the display panel 10 in a direction parallel to the plane of the cover plate 20 to form a groove-shaped structure C. The specific film layer composition inside the support module 30 is not limited in this embodiment. For example, the support module 30 may include only one film layer structure, or the support module 30 may include multiple film layer structures stacked in the thickness direction Z.

[0093] It should be noted that, depending on the preparation method, steps S100 and S110 can be interchanged, that is, the support module 30 is formed first, and then the cover plate 20 is formed. This application embodiment does not limit this.

[0094] S120: Encapsulating adhesive is formed within the groove structure.

[0095] Please see Figure 15c In step S120, since both the support module 30 and the cover plate 20 extend beyond the display panel 10 in the plane parallel to the cover plate 20, they can jointly define a groove structure C. The presence of the groove structure C can block the adhesive during the coating process, thereby confining the encapsulating adhesive 40 to the position of the groove structure C and ensuring that the encapsulating adhesive 40 maintains a certain size and shape. This improves the reliability of the relative position of the encapsulating adhesive 40, reduces the risk of adhesive overflow or insufficient adhesive, and thus helps to improve the yield rate of the display device and the reliability of the display device in resisting sweat, alkali, and grease.

[0096] In some embodiments, please refer to Figure 16 As shown in Figure 17, step S110 includes: S111: A support layer is formed on the side of the display unit away from the cover plate.

[0097] Please see Figure 17a In step S111, the orthographic projection of the display unit 11 onto the cover plate 20 covers the orthographic projection of the support layer 31 onto the cover plate 20. The support layer 31 can support and bear the load for the display unit 11, reducing the risk of excessive deformation of the display unit 11 during subsequent use. Optionally, the support layer 31 may include a metallic material, such as a steel sheet or other structure with high structural strength.

[0098] S112: A first sacrificial layer 32 is formed on the side of the support layer 31 away from the cover plate 20.

[0099] Please see Figure 17bIn step S112, the first sacrificial layer 32 extends beyond the display panel 10 in a direction parallel to the plane of the cover plate 20 to form a grooved structure C. By adding an additional first sacrificial layer 32 during the fabrication process, a grooved structure C can be formed without affecting other film layer structures. Figure 17c As shown, the presence of the groove structure C can limit the formation of the encapsulating adhesive 40 in the subsequent step S120, thereby improving the reliability of the relative position of the encapsulating adhesive 40 and reducing the risk of problems such as adhesive overflow or insufficient adhesive.

[0100] In some embodiments, in step S100, the display panel 10 includes a bent portion connected to the display portion 11. The display portion 11 has a first edge E1 and a second edge opposite each other in a first direction X, and includes a third edge and a fourth edge opposite each other in a second direction. The second edge is connected to the bent portion, and the first direction X intersects with the second direction.

[0101] Please see Figure 18 As shown in Figure 19, in step S112, the first sacrificial layer 32 includes a first sacrificial portion 321, which extends beyond at least one of the first edge E1, the third edge E3, and the fourth edge E4. Prior to step S112, the process further includes: S113: forming a second sacrificial layer 33 on the side of the support layer 31 facing away from the cover plate 20.

[0102] Please see Figure 19a In step S113, the support layer 31 extends beyond the second sacrificial layer 33 in a direction parallel to the plane of the cover plate 20. (See also...) Figure 19b The second sacrificial layer 33 is sandwiched between the first sacrificial portion 321 and the support layer 31. Exemplarily, the second sacrificial layer 33 can be simultaneously attached to both the first sacrificial layer 321 and the support layer 31. Furthermore, in the direction parallel to the plane of the cover plate 20, both the first sacrificial portion 321 and the support layer 31 extend beyond the second sacrificial layer 33, while the support layer 31 does not extend beyond the display panel 10. Therefore, the second sacrificial layer 33 does not extend beyond the display panel 10, meaning that the second sacrificial layer 33 does not define the groove structure C together with the cover plate 20.

[0103] Furthermore, since the support layer 31 extends beyond the second sacrificial layer 33 in the plane parallel to the cover plate 20, the portion of the support layer 31 facing away from the display part 11 will not be covered by the second sacrificial part 322. And since the second sacrificial layer 33 can separate the support layer 31 and the first sacrificial part 321 in the thickness direction Z, the portion of the support layer 31 facing away from the display part 11 will not be in contact with the first sacrificial part 321.

[0104] Based on this, please refer to Figure 19cIn the subsequent step S120, some of the adhesive can move to the surface of the support layer 31 away from the display part 11 and come into contact with the support layer 31. That is, the support layer 31 can come into contact with the encapsulating adhesive 40. This helps to reduce the risk of grease and other substances intruding into the support layer 31 by means of the encapsulating adhesive 40, thereby further improving the reliability of the subsequent formation of the display device.

[0105] In some embodiments, please refer to Figure 20 and Figure 21 After step S120, the method further includes: S130: Remove the first sacrificial layer.

[0106] Please see Figure 21 In step S130, after the encapsulating adhesive 40 has been molded and fixed, the first sacrificial layer 32 can be selectively removed, so that the final display device does not include the first sacrificial layer 32. This helps to achieve a thinner and lighter design for the display device.

[0107] It should be noted that when step S113 exists in the manufacturing process of the display device, the second sacrificial layer can be removed in subsequent steps, or the second sacrificial layer can be retained. This application embodiment does not limit this.

[0108] While the embodiments disclosed in this application are as described above, the content is merely for the purpose of facilitating understanding of this application and is not intended to limit the invention. Any person skilled in the art to which this application pertains may make any modifications and changes in form and detail of the implementation without departing from the spirit and scope disclosed in this application; however, the scope of protection of this application shall still be determined by the scope defined in the appended claims.

[0109] The above description is merely a specific embodiment of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, substitutions for other connection methods described above can be made by referring to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application.

Claims

1. A display module, characterized in that, include: A display panel includes a display section, wherein the display section is provided with a light-emitting structure; A cover plate is disposed on one side of the display section in the thickness direction; A support module is disposed on the side of the display unit away from the cover plate. The support module includes a support layer that is attached to the display unit, a first sacrificial layer located on the side of the support layer away from the display unit, and a second sacrificial layer disposed between the first sacrificial layer and the support layer. In a direction parallel to the plane of the cover plate, the orthographic projection of the display unit on the cover plate covers the orthographic projection of the support layer on the cover plate. Both the first sacrificial layer and the support layer extend beyond the second sacrificial layer, and both the first sacrificial layer and the cover plate extend beyond the display panel to form a groove-shaped structure. An encapsulating adhesive, at least a portion of which is located within the groove-shaped structure, surrounds the display panel, a portion of which is in contact with the display panel and the support layer, and a portion of which is located on the side of the support layer opposite to the display panel.

2. The display module according to claim 1, characterized in that, The display panel includes a bent portion connected to the display section and a binding portion connected to the bent portion, wherein the binding portion is bent through the bent portion to the side of the display section away from the cover plate; In a direction parallel to the plane of the cover plate, the first sacrificial layer extends beyond at least one of the display portion and the bent portion.

3. The display module according to claim 2, characterized in that, The display portion includes opposing first and second edges in a first direction, and opposing third and fourth edges in a second direction. The second edge is connected to the bent portion, and the first direction intersects with the second direction. The first sacrificial layer includes a first sacrificial portion, which extends beyond at least one of the first edge, the third edge, and the fourth edge.

4. The display module according to claim 3, characterized in that, The orthographic projection of the binding part on the cover plate is located outside the orthographic projection of the first sacrificial part on the cover plate.

5. The display module according to claim 4, characterized in that, The first sacrificial portion includes a first main body portion and a first portion located on one side of the first main body portion in the first direction. The first main body portion is located on one side of the orthographic projection of the cover plate along the first direction, and the first portion is located on at least one side of the orthographic projection of the cover plate along the second direction, where the binding portion is located.

6. The display module according to claim 5, characterized in that, In a direction parallel to the plane of the cover plate, the first main body extends beyond the first edge, the third edge, and the fourth edge; The number of the first portions is two, and the two first portions are respectively disposed on both sides of the orthographic projection of the binding portion on the orthographic projection of the cover plate. In a direction parallel to the plane where the cover plate is located, the two first portions are respectively disposed beyond the third edge and the fourth edge.

7. The display module according to claim 3, characterized in that, The orthographic projection of the binding part onto the cover plate is located outside the orthographic projection of the second sacrificial layer onto the cover plate.

8. The display module according to claim 7, characterized in that, The second sacrificial layer includes a second main body portion and a second portion located on one side of the second main body portion in a first direction. The second main body portion, in its orthographic projection onto the cover plate along the first direction, is located on one side of the orthographic projection of the binding portion onto the cover plate. The second portion, in its orthographic projection onto the cover plate along a second direction, is located on at least one side of the orthographic projection of the binding portion onto the cover plate. The display portion includes a first edge and a second edge opposite each other in the first direction, the second edge being connected to the bent portion, and the first direction intersecting the second direction.

9. The display module according to claim 2, characterized in that, The first sacrificial layer includes a second sacrificial portion, which is disposed on the side of the bonding portion opposite to the display portion; The second sacrificial portion extends beyond the bent portion in a direction parallel to the plane of the cover plate.

10. The display module according to claim 9, characterized in that, The binding part includes a body part, a driver chip disposed on the side of the body part away from the display part, and a protective part disposed on the side of the driver chip away from the display part. The projection of the body part onto the cover plate covers and extends beyond the projection of the protective part onto the cover plate. The second sacrificial portion is disposed on the side of the protective portion away from the display portion, and is spaced apart from the body portion in the thickness direction.

11. The display module according to claim 1, characterized in that, The first sacrificial layer has a through-hole structure that extends along the thickness direction of the display portion, and the through-hole structure is connected to the groove structure.

12. The display module according to claim 11, characterized in that, The number of through-hole structures is multiple, and the multiple through-hole structures are arranged around the display panel on the periphery of the cover plate in the orthographic projection of the cover plate.

13. A display device, characterized in that, Includes at least a portion of the structure of the support module in the display module as described in any one of claims 1 to 12, the display panel, the cover plate, and the encapsulating adhesive.

14. A method for manufacturing a display device, characterized in that, include: The display panel and the cover plate are attached together. The display panel includes a display part and the display part is provided with a light-emitting structure. The cover plate is disposed on one side of the display part in the thickness direction. A support module is formed on the side of the display unit away from the cover plate, and a support layer is formed on the side of the display unit away from the cover plate. The orthographic projection of the display unit on the cover plate covers the orthographic projection of the support layer on the cover plate. A second sacrificial layer is formed on the side of the support layer away from the cover plate. In a direction parallel to the plane of the cover plate, the support layer extends beyond the second sacrificial layer. A first sacrificial layer is formed on the side of the second sacrificial layer away from the cover plate. In a direction parallel to the plane of the cover plate, the first sacrificial layer and the cover plate extend beyond the display panel to form a groove structure. An encapsulating adhesive is formed within the groove-shaped structure, the encapsulating adhesive surrounds the display panel, a portion of the encapsulating adhesive is in contact with the display panel and the support layer, and a portion of the encapsulating adhesive is located on the side of the support layer opposite to the display panel.

15. The preparation method according to claim 14, characterized in that, In the aforementioned assembly of the display panel and cover plate, the display panel includes a bent portion connected to the display part, the display part includes opposing first and second edges in a first direction, and opposing third and fourth edges in a second direction, the second edge being connected to the bent portion, and the first direction intersecting the second direction; In the formation of a first sacrificial layer on the side of the support layer away from the cover plate, the first sacrificial layer includes a first sacrificial portion, which is disposed beyond at least one of the first edge, the third edge, and the fourth edge.

16. The preparation method according to claim 14, characterized in that, After the encapsulating adhesive is formed within the groove-shaped structure, the process further includes: Remove the first sacrificial layer.

Images