Display module, preparation method thereof and display device

Abstract

This invention provides a display module and its manufacturing method, as well as a display device, for narrowing the bezel width of the display module. The display module includes: a display panel, including a flexible substrate, the flexible substrate including a display area and a non-display area, the non-display area including a bent portion, the bent portion including at least a first bent portion and a second bent portion, the first bent portion being located on one side of the display area in a first direction; the second bent portion being located on one side of the display area in a second direction; the first direction and the second direction intersect; a support member, located on the side of the display panel away from the light-emitting side, the support member including a groove corresponding to the bent portion, the groove including at least a first groove and a second groove; the first groove corresponding to the first bent portion, and the second groove corresponding to the second bent portion.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically to a display module, its manufacturing method, and a display device. Background Technology

[0002] With the continuous development of science and technology, more and more electronic devices with display functions are being widely used in people's daily lives and work, bringing great convenience to people's daily lives and work, and becoming an indispensable tool for people today.

[0003] Currently, the display module has issues with large bezel width and light leakage. Summary of the Invention

[0004] This invention provides a display module, its manufacturing method, and a display device for reducing the bezel width of the display module.

[0005] In a first aspect, embodiments of the present invention provide a display module, comprising: The display panel includes a flexible substrate, which includes a display area and a non-display area. The non-display area includes a bent portion, and the bent portion includes at least a first bent portion and a second bent portion. The first bent portion is located on one side of the display area in a first direction; the second bent portion is located on one side of the display area in a second direction; the first direction and the second direction intersect. A support member is located on the side of the display panel away from the light-emitting side. The support member includes a groove corresponding to the bending portion. The groove includes at least a first groove and a second groove. The first groove corresponds to the first bending portion, and the second groove corresponds to the second bending portion.

[0006] Secondly, embodiments of the present invention provide a method for manufacturing a display module, comprising: A display panel is provided, the display panel including a flexible substrate, the flexible substrate including a display area and a non-display area, the non-display area including a bent portion, the bent portion including at least a first bent portion and a second bent portion, the first bent portion being located on one side of the display area in a first direction; the second bent portion being located on one side of the display area in a second direction; the first direction and the second direction intersect. A support mother plate is provided, and a groove is made in the support mother plate to obtain the support. The groove includes at least a first groove and a second groove. The support is positioned on the side of the display panel away from the light-emitting side, and the first groove corresponds to the first bend, and the second groove corresponds to the second bend. Thirdly, embodiments of the present invention provide a display device including the display module described above.

[0007] The display module provided in this embodiment of the invention, by providing a first bending portion and a second bending portion in the display panel 1, allows the non-display structure located on the side of the first bending portion away from the display area to be disposed on the side of the display area away from the light-emitting side, thereby reducing the width of the non-display area of ​​the display panel on the first direction side; and, after the second bending portion is bent, allows the non-display structure located on the side of the second bending portion away from the display area to be disposed on the side of the display area away from the light-emitting side, thereby reducing the width of the non-display area of ​​the display panel on the second direction side.

[0008] Furthermore, by providing a support member and opening a first bending portion corresponding to the first groove and a second bending portion corresponding to the second groove in the support member, the present invention can facilitate the bending of the first bending portion and the second bending portion while supporting the display panel. Attached Figure Description

[0009] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a top view schematic diagram of a display module provided in an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of a cross-section along BB'. Figure 3 This is a schematic diagram of a display panel in a flattened state at the bent portion, provided as an embodiment of the present invention; Figure 4 This is a top view of a support member in a flattened state, as provided in an embodiment of the present invention. Figure 5 A top view of a display module on the side away from the light-emitting side of the display panel, as provided in an embodiment of the present invention; Figure 6 for Figure 5 A schematic diagram of a cross section along CC'; Figure 7 A top view of another display module provided in an embodiment of the present invention on the side away from the light-emitting side of the display panel; Figure 8 for Figure 1 A schematic diagram of a cross-section along DD'; Figure 9 A top view of another display module provided in an embodiment of the present invention, on the side away from the light-emitting side of the display panel; Figure 10 A top view of another display module provided in an embodiment of the present invention, on the side away from the light-emitting side of the display panel; Figure 11 A top view of another display module provided in an embodiment of the present invention, on the side away from the light-emitting side of the display panel; Figure 12 for Figure 2 A schematic diagram of a cross-section along BB'; Figure 13 A cross-sectional schematic diagram of a display panel and a support member in a flattened state, provided for an embodiment of the present invention; Figure 14 A top view of another display module provided in an embodiment of the present invention, on the side away from the light-emitting side of the display panel; Figure 15 A top view of another display module provided in an embodiment of the present invention, on the side away from the light-emitting side of the display panel; Figure 16 A top view of another display module provided in an embodiment of the present invention, on the side away from the light-emitting side of the display panel; Figure 17 A top view of another display module provided in an embodiment of the present invention, on the side away from the light-emitting side of the display panel; Figure 18 A top view of another display module provided in an embodiment of the present invention, on the side away from the light-emitting side of the display panel; Figure 19 A top view of another display module provided in an embodiment of the present invention, on the side away from the light-emitting side of the display panel; Figure 20 A top view of another display module provided in an embodiment of the present invention, on the side away from the light-emitting side of the display panel; Figure 21 A cross-sectional schematic diagram of a flexible circuit board including a protective film, provided for an embodiment of the present invention; Figure 22 for Figure 14 A schematic diagram of a cross-section along EE'; Figure 23 A top view of another support member provided in an embodiment of the present invention in a flattened state; Figure 24 This is a cross-sectional schematic diagram of another display module provided in an embodiment of the present invention; Figure 25 This is a cross-sectional schematic diagram of another display module provided in an embodiment of the present invention; Figure 26 This is a cross-sectional schematic diagram of another display module provided in an embodiment of the present invention; Figure 27 A schematic diagram of another display panel provided in an embodiment of the present invention, wherein the bent portion is in a flattened state; Figure 28 A cross-sectional schematic diagram of a support member provided in an embodiment of the present invention; Figure 29 This is a cross-sectional schematic diagram of another display module provided in an embodiment of the present invention; Figure 30 This is a cross-sectional schematic diagram of another display module provided in an embodiment of the present invention; Figure 31 A top view schematic diagram of another display panel provided in an embodiment of the present invention, wherein the bent portion is in a flattened state; Figure 32 This is a cross-sectional schematic diagram of a display panel in the non-display area provided in an embodiment of the present invention; Figure 33 This is a schematic diagram illustrating the fabrication of a support member according to an embodiment of the present invention; Figure 34 This is a schematic diagram of a display device provided in an embodiment of the present invention. Detailed Implementation

[0011] To better understand the technical solution of this application, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0012] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0013] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0014] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0015] This invention provides a display module, such as... Figure 1 As shown, Figure 1 This is a top view schematic diagram of a display module provided in an embodiment of the present invention. Figure 2 for Figure 1A cross-sectional schematic diagram along BB' shows that the display module includes a display panel 1 and a support member 2.

[0016] like Figure 2 As shown, the display panel 1 includes a flexible substrate 11, which includes a display area AA and a non-display area NA. The display area AA may include multiple sub-pixels (not shown). The non-display area NA includes a bent portion 12, which includes at least a first bent portion 121 and a second bent portion 122. The first bent portion 121 is located on one side of the display area AA in a first direction h11; the second bent portion 122 is located on one side of the display area AA in a second direction h12; the first direction h11 and the second direction h12 intersect. In this embodiment of the invention, the bent portion 12 is bendable, and after bending, at least a portion of the non-display area of ​​the display panel 1 can be disposed on the side of the display area away from the light-emitting side. Figure 3 As shown, Figure 3 This is a schematic diagram of a display panel in a flattened state at the bent portion, provided by an embodiment of the present invention. Figure 3 compared to, Figure 1 As shown, the area of ​​the non-display area on the light-emitting side of the display panel 1 can be reduced, thereby increasing the screen-to-body ratio of the display panel 1.

[0017] like Figure 2 As shown, the support member 2 is located on the side of the display panel 1 away from the light-emitting side, and the support member 2 can provide support for the display panel 1. Parts of the structure in the support member 2 can also bend along with the bending portion 12 of the display panel 1. Combined with... Figure 4 As shown, Figure 4 This is a top view of a support member in a flattened state according to an embodiment of the present invention. The support member 2 includes a bent portion that connects to the display panel. Figure 4 The corresponding slot 20 (not shown) includes at least a first slot 201 and a second slot 202; as shown Figure 2 As shown, the first groove 201 corresponds to the first bend 121, and the second groove 202 corresponds to the second bend 122.

[0018] The display module provided in this embodiment of the invention, by providing a first bending portion 121 and a second bending portion 122 in the display panel 1, allows the non-display structure located on the side of the first bending portion 121 away from the display area AA to be disposed on the side of the display area away from the light-emitting side, thereby reducing the width of the non-display area of ​​the display panel 1 on the first direction h11 side; and, after the second bending portion 122 is bent, allows the non-display structure located on the side of the second bending portion 122 away from the display area AA to be disposed on the side of the display area away from the light-emitting side, thereby reducing the width of the non-display area of ​​the display panel 1 on the second direction h12 side.

[0019] Furthermore, by providing a support member 2 and opening a first bending portion 121 corresponding to the first groove 201 and a second bending portion 122 corresponding to the second groove 202 in the support member 2, the first bending portion 121 and the second bending portion 122 can be easily bent while supporting the display panel 1.

[0020] For example, such as Figure 2 As shown, the display panel 1 also includes a driving film layer 10 located on one side of the flexible substrate 11. The driving film layer 10 may include a semiconductor layer, a metal layer, and an insulating layer. Exemplarily, the display panel 1 also includes a display film layer, a touch film layer, and an encapsulation film layer, etc.

[0021] Optional, such as Figure 2 and Figure 3 As shown, the display panel 1 also includes a mounting portion 13. The mounting portion 13 is located on the side of the bent portion 12 away from the display area AA. Figure 2 As shown, the binding part 13 is located on the side of the display panel 1 away from the light-emitting side.

[0022] For example, such as Figure 5 and Figure 6 As shown, Figure 5 This is a top view schematic diagram of a display module on the side away from the light-emitting side of the display panel, according to an embodiment of the present invention. Figure 6 for Figure 5 A cross-sectional schematic diagram along CC' shows that the module also includes a flexible printed circuit (FPC) 3 electrically connected to the bonding portion 13; For example, the flexible circuit board 3 can subsequently be electrically connected to the driver chip to provide the signal provided by the driver chip to the display panel 1.

[0023] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the binding part 13 includes at least a first binding part 131 and a second binding part 132. The first binding part 131 is located on the side of the first bent part 121 away from the display area AA; the second binding part 132 is located on the side of the second bent part 122 away from the display area AA. like Figure 5 and Figure 6 As shown, the flexible circuit board 3 includes at least a first flexible circuit board 31 and a second flexible circuit board 32. The first flexible circuit board 31 is electrically connected to the first bonding portion 131; the second flexible circuit board 32 is electrically connected to the second bonding portion 132; and, as... Figure 5As shown, the first flexible circuit board 31 and the second flexible circuit board 32 are electrically connected on the side of the display panel 1 away from the light-emitting side. That is to say, the signal transmitted by the second flexible circuit board 32 can be provided to the first flexible circuit board 31. With this arrangement, the first flexible circuit board 31 and the second flexible circuit board 32 can jointly provide the signal required for display to the display panel 1, which can increase the signal transmission channels and help reduce signal load.

[0024] For example, both the first flexible circuit board 31 and the second flexible circuit board 32 can provide signals required for the operation of the shift register circuit, such as clock signals and fixed-level signals.

[0025] For example, in embodiments of the present invention, the first flexible circuit board 31 can be electrically connected to the second flexible circuit board 32 via a zero insertion force (ZIF) interface.

[0026] For example, such as Figure 5 As shown, the first flexible circuit board 31 includes a plug-in portion 301, and the first flexible circuit board 31 is electrically connected to the second flexible circuit board 32 through the plug-in portion 301.

[0027] When configuring the connector 301, for example, such as Figure 5 As shown, in this embodiment of the invention, the insertion portion 301 can extend along the first direction h11; Or, such as Figure 7 As shown, Figure 7 This is a top view of another display module provided in an embodiment of the present invention, on the side away from the light-emitting side of the display panel. In this embodiment, the insertion portion 301 can also extend along the second direction h12. For example... Figure 7 As shown, the display module has a relatively large length in the second direction h12. In this embodiment of the invention, by extending the plug-in portion 301 along the second direction h12, the length of the plug-in portion 301 can be increased as much as possible without affecting the arrangement of other structures. This is more conducive to controlling the connection between the first flexible circuit board 31 and the second flexible circuit board 32 through the plug-in portion 301, and can reduce the difficulty of operation.

[0028] For example, such as Figure 7 As shown, the first flexible circuit board 31 includes a body 300, a connecting portion 302, and a plug-in portion 301. The connecting portion 302 connects the body 300 and the plug-in portion 301. The length of the connecting portion 302 is I, where I ≤ I ≤ 44 mm. This arrangement avoids the connecting portion 302 from being too long and prevents it from affecting the arrangement of other structures.

[0029] Optional, such as Figure 2As shown, the slot 20 includes a first edge E20 near the display area AA, and the display module also includes a cover plate 4 located on the light-emitting side of the display panel 1. like Figure 1 As shown, cover plate 4 includes a rounded corner area A1. Combined with... Figure 8 As shown, Figure 8 for Figure 1 In a cross-sectional view along DD', along the thickness direction h2 of the display module, the bent portion 12 at least partially overlaps with the rounded corner region A1; within the rounded corner region A1, along a direction parallel to the plane where the display module is located, the distance between the first edge E20 and the edge E4 of the cover plate 4 is d, where d ≥ 0.125 mm; by adopting this setting, the bent portion 12 of the display panel 1 can be prevented from exceeding the edge E4 of the cover plate 4, and the bent portion 12 can be avoided from being damaged by impact.

[0030] Or, such as Figure 5 and Figure 7 As shown, along the thickness direction h2 of the display module, in this embodiment of the invention, the bent portion 12 and the rounded corner region A1 can be made not to overlap, and along the direction parallel to the plane where the display module is located, the distance between the bent portion 12 and the rounded corner region A1 is C, where C≥1mm.

[0031] When aligning and bonding the cover plate 4 and the display panel 1, a clamp is usually used to hold the rounded corner area A1 of the cover plate 4. In this embodiment of the invention, by setting C≥1mm, the distance between the bent part 12 and the rounded corner area A1 can be increased. Even if there is a process deviation, it can be ensured that the bent part 12 will not enter the rounded corner area, and the bent part 12 can be avoided from being damaged by the clamp.

[0032] For example, such as Figure 5 As shown, the bending portion 12 includes a first bending portion 121 and a second bending portion 122, as... Figure 7 As shown, the distance C includes C1 and C2. The distance between the first bent portion 121 and the rounded corner area A1 is C1, and the distance between the second bent portion 122 and the rounded corner area A1 is C2. The above C≥1mm includes: C1≥1mm; C2≥1mm.

[0033] Optionally, in this embodiment of the invention, the cover plate 4 may include one or at least two rounded corner regions A1; Figure 5 and Figure 7 The cover plate 4 includes four rounded corner regions A1 at its four corners as an example. The distance between at least one rounded corner region A1 and the bend 12 located near it is C as described above.

[0034] For example, such as Figure 5 and Figure 7As shown, the first flexible circuit board 31 includes a body 300 and a buffer body 303. The width of the buffer body 303 is smaller than the width of the body 300, and the body 300 is located on the side of the buffer body 303 away from the second bend 122. The buffer body 303 ensures that the first flexible circuit board 31 can avoid the second flexible circuit board 32, thus preventing them from interfering with each other.

[0035] When setting the above-mentioned plug-in portion 301, by way of example, the position of the plug-in portion 301 can be set at any position in the first flexible circuit board 31 where no pins are provided, according to the plug-in requirements.

[0036] For example, such as Figure 5 As shown, in this embodiment of the invention, the plug-in portion 301 can also be connected to the avoidance body 303. This arrangement shortens the distance between the plug-in portion 301 and the body 300 of the second flexible circuit board 32, which is beneficial for shortening the length of the plug-in portion 301.

[0037] Or, such as Figure 7 As shown, in this embodiment of the invention, the plug-in portion 301 can be connected to the body 300. In the first flexible circuit board 31, the area of ​​the body 300 is usually larger than that of the avoidance body 303. By connecting the plug-in portion 301 to the body 300, this embodiment of the invention can make full use of the area where the body 300 is located, avoid the limitation of the installation space of the plug-in portion 301, and reduce the installation difficulty of the plug-in portion 301.

[0038] Optional, such as Figure 5 and Figure 7 As shown, in the first flexible circuit board 31, the width of the clearance body 303 is H, where H ≥ 3.5 mm. The width direction of the clearance body 303 is perpendicular to the extension direction of the clearance body 303. Figure 5 and Figure 7 The avoidance body 303 extends along the second direction h12, and its width direction is along the first direction h11 as an illustration. In this embodiment of the invention, by setting H≥3.5mm, the width of the avoidance body 303 can be ensured that it is not too narrow, and the feasibility of wiring can be ensured when wiring is installed within the avoidance body 303.

[0039] For example, the first flexible circuit board 31 may include a multilayer FPC structure composed of multiple conductive layers. For instance, the first flexible circuit board 31 may include a four-layer FPC structure composed of four conductive copper foils, a six-layer FPC structure composed of six conductive copper foils, or an eight-layer FPC structure composed of eight conductive copper foils. In this embodiment of the invention, the width H of the clearance body 303 can vary according to the number of conductive layers in the first flexible circuit board 31. For example, when the first flexible circuit board 31 is an eight-layer FPC structure, H can be ≥ 1.8 mm. Optionally, H can be ≥ 2.5 mm. When the first flexible circuit board 31 is a six-layer FPC structure, H can be ≥ 3.5 mm.

[0040] For example, such as Figure 5 and Figure 7 As shown, the first flexible circuit board 31 includes a body 300 and a clearance body 303, and the second flexible circuit board 32 includes a body 300, as... Figure 5 and Figure 7 As shown, the clearance body 303 of the first flexible circuit board 31 is adjacent to the body 300 of the second flexible circuit board 32, and there is a gap between the clearance body 303 of the first flexible circuit board 31 and the body 300 of the second flexible circuit board 32. By adopting this arrangement, the first flexible circuit board 31 and the second flexible circuit board 32 can be prevented from contacting each other, thereby avoiding mutual interference.

[0041] For example, such as Figure 5 and Figure 7 As shown, the second flexible circuit board 32 includes a body 300. The maximum distance between the body 300 of the second flexible circuit board 32 and the first flexible circuit board 31 is F, where F ≥ 0.13 mm. By setting F ≥ 0.13 mm, this embodiment of the invention ensures that the first flexible circuit board 31 and the second flexible circuit board 32 will not contact each other, thus avoiding mutual interference.

[0042] Optional, such as Figure 5 and Figure 7 As shown, the first flexible circuit board 31 includes a body 300 and a clearance body 303, and the second flexible circuit board 32 includes a body 300; wherein, the length of the clearance body 303 of the first flexible circuit board 31 is X1, and the length of the body 300 of the second flexible circuit board 32 is X2, X1≤X2.

[0043] For example, such as Figure 5 and Figure 7 As shown, the length direction of the avoidance body 303 of the first flexible circuit board 31 and the length direction of the body 300 of the second flexible circuit board 32 are both parallel to the second direction h12.

[0044] By setting X1≤X2, the length of the buffer body 303 of the first flexible circuit board 31 can be reduced. On the one hand, this makes the shape of the first flexible circuit board 31 more regular. On the other hand, since the buffer body 303 has a smaller area than the body 300, it is more prone to soft collapse and deformation. By reducing the length of the buffer body 303 of the first flexible circuit board 31, the flatness of the first flexible circuit board 31 can be better and the adhesion can be more stable.

[0045] For example, such as Figure 5 and Figure 7 As shown, the first flexible circuit board 31 includes a body 300 and a clearance body 303, and the second flexible circuit board 32 includes a body 300. The width of the body 300 of the first flexible circuit board 31 is Y1, and the width of the body 300 of the second flexible circuit board 32 is Y2. Exemplarily, in embodiments of the present invention, Y1 < Y2. Figure 5 and Figure 7 As shown, the width direction of the body 300 of the first flexible circuit board 31 and the width direction of the body 300 of the second flexible circuit board 32 are both parallel to the first direction h11.

[0046] By setting Y1 < Y2, the space occupied by the first flexible circuit board 31 in the first direction h11 can be reduced, while the space occupied by the second flexible circuit board 32 in the first direction h11 can be increased. In this embodiment of the invention, the first flexible circuit board 31 and the first bonding portion of the display panel 1 ( Figure 5 and Figure 7 (Not shown) is electrically connected to the second flexible circuit board 32 and the second bonding part of the display panel 1. Figure 5 and Figure 7 (Not shown) Binding electrical connection, in this embodiment of the invention, by setting Y1 < Y2, the first flexible circuit board 31 and the second flexible circuit board 32 can be adapted to the width of the area where the first binding part 131 and the second binding part 132 are located.

[0047] For example, such as Figure 5 and Figure 7 As shown, the first flexible circuit board 31 includes a body 300 and a clearance body 303, and the second flexible circuit board 32 includes a body 300. Along the second direction h12, the body 300 of the first flexible circuit board 31 and the second flexible circuit board 32 at least partially overlap. This arrangement helps to improve the space utilization of the first flexible circuit board 31 and the second flexible circuit board 32 in the second direction h12. Figure 5 and Figure 7As shown, the display module can be a rectangular structure that extends along the second direction h12 along its long side. In this embodiment of the invention, by having the body 300 of the first flexible circuit board 31 and the second flexible circuit board 32 at least partially overlap, the large length of the display module in the second direction h12 can be fully utilized.

[0048] For example, such as Figure 5 and Figure 7 As shown, the length of the first flexible circuit board 31 in the second direction h12 is L1. The length of the second flexible circuit board 32 in the second direction h12 is L2, where L1 / L2≥2. This arrangement maximizes the length of the first flexible circuit board 31 in the second direction h12, fully utilizing the relatively large length of the display module in that direction.

[0049] Or, such as Figure 9 As shown, Figure 9 This is a top view of another display module provided in an embodiment of the present invention, on the side away from the light-emitting side of the display panel, wherein 1 / 5 ≤ L1 / L2 ≤ 1. With this arrangement, the length of the first flexible circuit board 31 in the second direction h12 can be shorter, adapting to the case where the length of the first bonding portion of the display panel 1 in the second direction h12 is also short. When the length of the first bonding portion in the second direction h12 is short, correspondingly, the length of the first bending portion 121 in the second direction h12 can also be set shorter, facilitating the bending of the first bending portion 121.

[0050] For example, such as Figure 11 As shown, Figure 11 This is a top view of another display module provided in an embodiment of the present invention on the side away from the light-emitting side of the display panel. The first flexible circuit board 31 includes at least two flexible circuit boards 310, and the at least two flexible circuit boards 310 are arranged along the second direction h12. Figure 10 The two flexible circuit boards 310 in the first flexible circuit board 31 are used as an example.

[0051] This arrangement improves the flexibility of the first flexible circuit board 31. For example, when the total length of the first flexible circuit board 31 in the second direction h12 needs to be relatively long, this embodiment of the invention can set sub-flexible circuit boards 310 that match the structural characteristics of different areas according to the different locations of the first flexible circuit board 31. On the one hand, this can improve the flatness of the first flexible circuit board 31 at different locations; on the other hand, it can also disperse the tensile stress of the first flexible circuit board 31 during assembly as much as possible, thereby improving the reliability of the first flexible circuit board 31.

[0052] For example, in an embodiment of the present invention, the first flexible circuit board 31 or the sub-flexible circuit board 310 includes at least two pin regions A2, which are spaced apart in the second direction h12.

[0053] Figure 5 and Figure 7 The first flexible circuit board 31 includes two pin regions A2 spaced apart in the second direction h12 as an example. Figure 10 The flexible circuit board 310 includes two pin regions A2 spaced apart in the second direction h12 as an example.

[0054] For example, pin region A2 includes a plurality of pins (not shown), which can be electrically connected to pins in the first bonding section.

[0055] This arrangement is advantageous in increasing the number of pins in the first flexible circuit board 31 or the sub-flexible circuit board 310. Furthermore, by having at least two pin regions A2 spaced apart in the second direction h12, the pin regions A2 can be distributed as widely as possible, thereby distributing the signal lines electrically connected to the pins in the pin regions A2 as widely as possible. The signal lines can be electrically connected to the circuits in the display panel 1, such as the shift register circuit, which is beneficial for balancing the load differences of different signal lines.

[0056] In another alternative pin configuration, for example, such as Figure 9 As shown, the first flexible circuit board 31 includes at least one pin region A2, which is located on the side of the first flexible circuit board 31 close to the second flexible circuit board 32. Figure 9 The two pin areas A2 in the first flexible circuit board 31 are used as examples. This arrangement can be adapted to designs where the pin areas in the first bonding part are concentrated on one side.

[0057] For example, such as Figure 10 As shown, Figure 10 This is a top view of another display module provided in an embodiment of the present invention, on the side away from the light-emitting side of the display panel. In this embodiment, a cutout portion 3100 can be provided at a corresponding position between the first flexible circuit board 31 and two adjacent pin areas A2. If the pin areas A2 of the first flexible circuit board 31 deform, such as due to thermal expansion, the cutout portion 3100 can provide space to accommodate the deformation of the first flexible circuit board 31, which is beneficial to improving the reliability of the display module.

[0058] For example, such as Figure 11 As shown, a cutout portion 3100 can also be provided between the two adjacent pin areas A2 in the flexible circuit board 310.

[0059] For example, such as Figure 12 As shown, Figure 12 for Figure 2 A cross-sectional view along BB' shows that the support member 2 includes a first sub-support member 21 and a second sub-support member 22 located on both sides of the groove 20; the second sub-support member 22 is located on the side of the first sub-support member 21 away from the light-emitting side of the display panel 1; the second sub-support member 22 has a protruding portion 220 extending beyond the display panel 1; in this embodiment of the invention, by providing the protruding portion 220, when the bending portion 12 is bent, the protruding portion 220 can be adsorbed by an adsorption device to drive the bending portion 12 to bend. This configuration is suitable for scenarios where the display panel 1 has a small external size. When the display panel 1 has a small external size, the protruding portion 220 reduces the adsorption difficulty of the adsorption device.

[0060] For example, such as Figure 12 As shown, the display module also includes adhesive 5, which is located between the flexible circuit board 3 and the extended portion 220 along the thickness direction h2 of the display module. Adhesive 5 can be used to bond the flexible circuit board 3 and the extended portion 220.

[0061] Optionally, in preparing a product having such Figure 12 When assembling the display module with the structure shown, the support member 2 and the display panel 1 can be aligned first, such as... Figure 13 As shown, Figure 13 This is a cross-sectional schematic diagram of a display panel and a support member in a flattened state, provided by an embodiment of the present invention. The groove 20 in the support member 2 corresponds to the bent portion 12 of the display panel 1, and the protruding portion 220 of the support member 2 extends beyond the edge of the display panel 1. Then, the aforementioned adhesive 5 is applied to the surface of the protruding portion 220. For example, as shown... Figure 13 As shown, the surface of the adhesive 5 away from the support member 2 may include a protective film 50. After bending the bending portion 12 and the support member 2, the protective film 50 on the surface of the adhesive 5 away from the support member 2 can be removed, allowing the flexible circuit board 3 to be bonded together with the adhesive 5 and the protruding portion 220. Based on this arrangement, Figure 12 The flexible circuit board 3 shown can be selected to have a structure without adhesive.

[0062] For example, in the preparation of having such Figure 12 When assembling the display module with the structure shown, the bending part 12 and the support member 2 can be bent first, and then the flexible circuit board 3 and the display panel 1 can be bonded and electrically connected.

[0063] In another alternative implementation, the flexible circuit board 3 and the display panel 1 can be electrically connected first, and then the bending portion 12 and the support member 2 can be bent.

[0064] Optional, such as Figure 12 and Figure 13 As shown, the length of the protruding part 220 along the direction parallel to the plane where the display module is located is d. 220 , where d 220 ≥5mm. The length of the protruding portion 220 can be understood as the distance between the edge of the protruding portion 220 furthest from the display panel 1 and the edge of the display panel 1. In this embodiment of the invention, by making the length of the protruding portion 220 greater than or equal to 5mm, when the adsorption device adsorbs the protruding portion 220 to move it and drive the bending portion 12220 to bend, the adsorption area can be guaranteed, which helps to reduce the difficulty of bending.

[0065] For example, such as Figure 2 , Figure 6 , Figure 8 and Figure 12 As shown, the display module also includes a buffer 82 and adhesive tape 7 for bonding the buffer 82 and the second sub-support 22. For example, as... Figure 2 , Figure 6 and Figure 12 As shown, the tape 7 includes at least a first tape 71 and a second tape 72. The first tape 71 is used to bond the cushioning member 82 and the second sub-support member 22 corresponding to the first binding part 131, and the second tape 72 is used to bond the cushioning member 82 and the second sub-support member 22 corresponding to the second binding part 132.

[0066] For example, such as Figure 5 , Figure 7 , Figure 9 and Figure 10 As shown, in this embodiment of the invention, only one first flexible circuit board 31 can be provided in the display module.

[0067] In another alternative implementation, embodiments of the present invention may also include at least two first flexible circuit boards 31 in the display module. For example, as shown... Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 and Figure 20 As shown, Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 and Figure 20These are top views of the other seven display modules provided in the embodiments of the present invention on the side away from the light-emitting side of the display panel. The flexible circuit board 3 includes at least two first flexible circuit boards 31. The two first flexible circuit boards 31 include a first A flexible circuit board 311 and a first B flexible circuit board 312. The first A flexible circuit board 311 and the first B flexible circuit board 312 are arranged along the first direction h11.

[0068] In this embodiment of the invention, by setting a first flexible circuit board 311 and a first flexible circuit board 312, the first flexible circuit board 31 can be set on both the left and right edges of the display panel 1. The first flexible circuit board 31 can provide the display required signals to the display panel 1, such as providing drive signals to the shift register circuit in the display panel 1, which can increase the signal transmission channels and reduce the signal load.

[0069] When configuring the first flexible circuit board 311 (Type A) and the first flexible circuit board 312 (Type B), for example, as follows: Figure 14 and Figure 15 As shown, in this embodiment of the invention, the insertion portion 301 of the first flexible circuit board 311 can be connected to the clearance body 303 of the first flexible circuit board 311, and the insertion portion 301 of the first flexible circuit board 312 can be connected to the clearance body 303 of the first flexible circuit board 312.

[0070] Or, such as Figure 16 As shown, in this embodiment of the invention, the insertion portion 301 of the first flexible circuit board 311 can be connected to the body 300 of the first flexible circuit board 311, and the insertion portion 301 of the first flexible circuit board 312 can be connected to the body 300 of the first flexible circuit board 312.

[0071] For example, such as Figure 14 , Figure 15 , Figure 16 , Figure 17 and Figure 18 As shown, the length L1 of the first flexible circuit board 31 in the second direction h12 may include the length L11 of the first flexible circuit board A 311 in the second direction h12 and the length L12 of the first flexible circuit board B 312 in the second direction h12.

[0072] For example, such as Figure 14 , Figure 15 and Figure 16 As shown, in the embodiments of the present invention, L11 / L2≥2; L12 / L2≥2 can be set.

[0073] Or, such as Figure 17 and Figure 18 As shown, in embodiments of the present invention, 1 / 5 ≤ L11 / L2 ≤ 1; 1 / 5 ≤ L12 / L2 ≤ 1 can also be set.

[0074] For example, L11 may be equal to L12 or may not be equal to L12, and the embodiments of the present invention do not limit this.

[0075] Optional, such as Figure 19 As shown, in this embodiment of the invention, a cutout portion 3100 can also be provided in the first flexible circuit board A 311 at a position corresponding to the position between two adjacent pin areas A2, and in the first flexible circuit board B 312 at a position corresponding to the position between two adjacent pin areas A2. When the first flexible circuit board A 311 and the first flexible circuit board B 312 deform, such as due to thermal expansion, the cutout portion 3100 can provide space to accommodate the deformation of the first flexible circuit board A 311 and the first flexible circuit board B 312, which is beneficial to improving the reliability of the display module.

[0076] For example, embodiments of the present invention may also include at least two segments of flexible circuit board 310 in at least one of the first flexible circuit board A 311 and the first flexible circuit board B 312. Figure 20 As shown, both the first flexible circuit board A 311 and the first flexible circuit board B 312 include two flexible circuit board segments 310 as an illustration. The two flexible circuit segments 310 are arranged along the second direction h12.

[0077] Optional, such as Figure 14 , Figure 15 , Figure 16 and Figure 17 As shown, the maximum distance between the edge of the first flexible circuit board 311 away from the first flexible circuit board 312 and the edge of the first flexible circuit board 312 away from the first flexible circuit board 311 in the first direction h11 is L; the width of the first flexible circuit board 311 is J1, and the width of the first flexible circuit board 312 is J2, where L / 2≥J1≥10mm; L / 2≥J2≥10mm. This arrangement can maximize the width of the first flexible circuit board 311 and the first flexible circuit board 312 while avoiding mutual interference. For example, when bending the bending portion 12 of the display panel 1, a bending adsorption device can be used to adsorb the flexible circuit board 3, and the bending of the flexible circuit board 3 can drive the bending portion 12 of the display panel 1 to bend. By maximizing the width of the first flexible circuit board 311 and the first flexible circuit board 312, the risk of the first flexible circuit board 311 and the first flexible circuit board 312 falling off the adsorption device can be reduced.

[0078] For example, in embodiments of the present invention, J1 ≥ J2. This arrangement improves the flexibility of the first flexible circuit board A 311 and the first flexible circuit board B 312. For instance, when there is sufficient space in the area where the first flexible circuit board A 311 is located, the width of the first flexible circuit board A 311 can be set as large as possible to improve space utilization. Figure 14 and Figure 17 Taking J1 > J2 as an example, Figure 15 and Figure 18 Using J1=J2 as an example.

[0079] For example, such as Figure 21 As shown, Figure 21 This is a cross-sectional schematic diagram of a flexible circuit board including a protective film provided in an embodiment of the present invention. The flexible circuit board 3 includes a substrate 3001 and a protective film 3002. The thickness of the pin bonding portion 3003 in the substrate 3001 is less than the thickness of other portions.

[0080] For example, the length d of the protective film 3002 3002 The length d of the base 3001 can be greater than or equal to the length of the base 3001. 3001 .

[0081] Optional, d 3002 ≥10mm. d 3001 ≥5mm. The smaller the length of the substrate 3001, the higher the requirements for process precision and cost during the fabrication of the flexible circuit board 3. This embodiment of the invention allows d... 3001 A thickness of ≥5mm can reduce the manufacturing cost of the flexible circuit board 3.

[0082] When bonding and electrically connecting the flexible circuit board 3 to the display panel 1, an adsorption device is usually required to adsorb the flexible circuit board 3. When the length of the substrate 3001 is short, the protective film 3002 can be adsorbed. In this embodiment of the invention, the length of the protective film 3002 is greater than or equal to 10 mm, which facilitates adsorption.

[0083] For example, after the flexible circuit board 3 and display panel 1 are bonded and electrically connected, the protective film 3002 can be removed from the surface of the substrate 3001.

[0084] Optional, such as Figure 22 As shown, Figure 22 for Figure 14In a cross-sectional view along EE', at least a portion of the first flexible circuit board A 311 is located on the side of the first flexible circuit board B 312 away from the light-emitting side of the display panel 1 along the thickness direction h2 of the display module. This arrangement avoids placing the first flexible circuit board A 311 and the first flexible circuit board B 312 on the same plane. By placing the first flexible circuit board A 311 on the side of the first flexible circuit board B 312 away from the light-emitting side of the display panel 1, this embodiment of the invention allows the bending degree of the first bending portion 121 corresponding to the first flexible circuit board A 311 to be greater than the bending degree of the first bending portion 121 corresponding to the first flexible circuit board B 312. For example, as... Figure 22 As shown, the distance between the arc apex M of the first bending portion 121 and the edge of its corresponding first sub-support member 21 is Rx11, and the distance between the arc apex M of the second bending portion 122 and the edge of its corresponding first sub-support member 21 is Rx12, where Rx11 < Rx12. This arrangement allows for a smaller bezel width on one side of the first flexible circuit board 311, which is more conducive to narrowing the bezel width of the display module.

[0085] For example, such as Figure 22 As shown, the display module also includes a buffer 8 and adhesive tape 7 for bonding the buffer 82 and the second sub-support 22. Exemplarily, the adhesive tape 7 includes at least a first adhesive tape 71 and a second adhesive tape 72. Exemplarily, as... Figure 22 As shown, the first tape 71 includes at least a first A tape 711 and a first B tape 712.

[0086] Combination Figure 22 and Figure 23 As shown, Figure 23 This is a top view of another support member provided in an embodiment of the present invention in a flattened state. The second sub-support member 22 includes a first type of second sub-support member 221 corresponding to the first flexible circuit board 31 and a second type of second sub-support member 222 corresponding to the second flexible circuit board 32. When the first flexible circuit board 31 is configured to include a first A flexible circuit board 311 and a first B flexible circuit board 312, for example, as shown... Figure 23 As shown, the aforementioned first type of second sub-support member 221 may include a first A support member 2211 corresponding to the first A flexible circuit board 311 and a first B support member 2212 corresponding to the first B flexible circuit board 312. The aforementioned first A adhesive tape 71 is located between the first A support member 2211 and the buffer member 82, and the first B adhesive tape 72 is located between the first B support member 2212 and the buffer member 82. Figure 22 As shown, in this embodiment of the invention, the thickness T1 of the first A adhesive tape 71 can be greater than the thickness T2 of the first B adhesive tape 72, so that the first A flexible circuit board 311 is located on the side of the first B flexible circuit board 312 away from the light-emitting side of the display panel 1.

[0087] Optionally, in embodiments of the present invention, T1 ≥ T2 + N1, where N1 > 0.1 mm.

[0088] For example, N1 can be designed according to the structure of the flexible circuit board 3. For instance, when the flexible circuit board 3 is selected to include a board structure with two conductive layers, N1 can be set to 0.12 mm. When the flexible circuit board 3 is selected to include a structure with more conductive layers, N1 can be set to > 0.12 mm.

[0089] When configuring the first flexible circuit board 311, the first flexible circuit board 312, and the second flexible circuit board 32, for example, as follows: Figure 22 As shown, in at least some locations, embodiments of the present invention can ensure that the three components do not overlap in the direction h2 perpendicular to the plane where the display module is located.

[0090] In another alternative implementation, such as Figure 24 As shown, Figure 24 This is a cross-sectional schematic diagram of another display module provided by an embodiment of the present invention. At least in some locations, the first flexible circuit board A 311 and the first flexible circuit board B 312 can be overlapped. For example... Figure 24 As shown, in this embodiment of the invention, the surface of the first flexible circuit board 311 near the light-emitting side of the display panel and the surface of the first flexible circuit board 312 away from the light-emitting side of the display panel can be in contact.

[0091] In yet another alternative implementation, such as Figure 25 As shown, Figure 25 This is a cross-sectional schematic diagram of another display module provided by an embodiment of the present invention. In at least some locations, the embodiment of the present invention allows both the first flexible circuit board A 311 and the first flexible circuit board B 312 to overlap with the second flexible circuit board 32. For example... Figure 25 As shown, in this embodiment of the invention, both the first flexible circuit board 311 (A) and the first flexible circuit board 312 (B) can overlap with the second flexible circuit board 32. The figure illustrates this by showing the surfaces of the first flexible circuit board 311 (A) near the light-emitting side of the display panel and the first flexible circuit board 312 (B) near the light-emitting side of the display panel respectively contacting the surfaces of the second flexible circuit board 32 away from the light-emitting side of the display panel.

[0092] Or, such as Figure 26 As shown, Figure 26 This is a cross-sectional schematic diagram of another display module provided by an embodiment of the present invention. In at least some locations, the first flexible circuit board A 311 and the first flexible circuit board B 312 can be overlapped with each other, and one of them can be overlapped with the second flexible circuit board 32, while the other is not overlapped with the second flexible circuit board 32. Figure 26The diagram illustrates the situation where the first flexible circuit board 312 overlaps with the second flexible circuit board 32, while the first flexible circuit board 311 does not overlap with the second flexible circuit board 32. Figure 26 As shown, in this embodiment of the invention, the surface of the first flexible circuit board 311 near the light-emitting side of the display panel and the surface of the first flexible circuit board 312 away from the light-emitting side of the display panel can be in contact, and the surface of the first flexible circuit board 312 near the light-emitting side of the display panel can be in contact with the surface of the second flexible circuit board 32 away from the light-emitting side of the display panel.

[0093] For example, such as Figure 4 and Figure 23 As shown, the width of the groove 20 is W, where W ≥ 0.5 mm. This arrangement allows for a larger width of the groove 20, which is beneficial for achieving over-stretching of the bent portion 12 in the thickness direction h2 of the display module. For example, as... Figure 2 As shown, the length P2 of the bent portion 12 in the thickness direction h2 of the display module (that is, the distance between the upper surface of the first sub-support member 21 and the lower surface of the second sub-support member 22) can be greater than the horizontal distance Rx between the arc apex M of the bent portion 12 and the edge E20 of the groove 20, so that the outline of the bent portion 12 is approximately elliptical, which is beneficial to reduce the width of the frame of the display module.

[0094] For example. Figure 4 and Figure 23 As shown, the groove 20 includes at least a first groove 201 and a second groove 202, wherein the width of the first groove 201 is W1 and the width of the second groove 202 is W2. W≥0.5mm, including: W1≥0.5mm, W2≥0.5mm.

[0095] Optional, such as Figure 23 As shown, the first groove 201 includes at least a first groove A 2011 and a first groove B 2012. The width of the first groove A 2011 is W11, and the width of the first groove B 2012 is W12. W1 ≥ 0.5 mm, including: W11 ≥ 0.5 mm, W12 ≥ 0.5 mm.

[0096] For example, in embodiments of the present invention, W1 ≥ W2. (In conjunction with...) Figure 23 and Figure 27 As shown, Figure 27This is a schematic diagram of another display panel provided by an embodiment of the present invention, showing the bent portion in a flattened state. The embodiment of the present invention provides a method in which a first A bent portion 1211, a first B bent portion 1212, and a second bent portion 122 are simultaneously provided in the display panel 1, and a first A groove 2011, a first B groove 2012, and a second groove 202 are simultaneously provided in the support member 2. This requires simultaneous alignment of the first A groove 2011 and the first A bent portion 1211, as well as the first B groove 2012 and the first B bent portion 1212, and the second groove 202 and the second bent portion 122. This inevitably leads to a decrease in alignment accuracy. The embodiment of the present invention, by setting W1≥W2, avoids the support member corresponding to the first bent portion 121 from affecting the internal film layer of the display panel, even if the alignment accuracy decreases. For example, it avoids the support members corresponding to the first A bent portion 1211 and the first B bent portion 1212 from affecting the internal film layer of the display panel.

[0097] For example, such as Figure 28 As shown, Figure 28 The present invention provides a cross-sectional schematic diagram of a support member. The first sub-support member 21 and the second sub-support member 22 both include a side surface S1 and a bottom surface S2. The included angle between the side surface S1 and the bottom surface S2 is θ. In at least one of the first sub-support member 21 and the second sub-support member 22, 85°≤θ≤110°.

[0098] The larger θ is, the smaller the thickness of the support member 2 near the edge of the groove 20, that is, at the bending point of the display panel, which easily leads to stress concentration problems. In this embodiment of the invention, by setting θ ≤ 110°, the thickness of the support member 2 near the edge of the groove 20 is avoided being too small. When bending the support member 2, this helps to alleviate the stress concentration problem at the edge of the support member 2, improves the bending reliability of the support member 2, and extends the lifespan of the support member 2.

[0099] Furthermore, when the groove 20 is prepared by die-cutting, the waste generated after cutting needs to be discharged through the area where the groove 20 is located. If θ is too small, the space at the edge of the groove 20 will be too small, making it difficult for the waste to be discharged and causing it to accumulate near the angle between the side surface S1 and the bottom surface S2. In this embodiment of the invention, by setting θ ≥ 85°, it is beneficial to discharge the waste during the preparation process of the groove 20, which helps to improve the process yield.

[0100] For example, such as Figure 2As shown, the groove 20 includes a first edge E20 near the display area AA. Along a direction parallel to the plane of the display module, the distance between the arc apex M of the bent portion 12 and the first edge E20 is Rx, where 0.07mm ≤ Rx ≤ 0.13mm. The arc apex M is the most convex position on the inner surface of the display panel 1 near the center of curvature of the bent portion 12. This arrangement can reduce the bezel width of the display module while ensuring the bending reliability of the display panel. For example, Rx can be 0.1mm.

[0101] For example, the groove 20 includes a first groove 201 and a second groove 202, the bending portion 12 includes a first bending portion 121 and a second bending portion 122, and Rx includes Rx1 and Rx2. Rx1 is the distance between the arc apex M of the first bending portion 121 and the first edge E20 of the first groove 201, and Rx2 is the distance between the arc apex M of the second bending portion 122 and the first edge E20 of the second groove 202. The above 0.07mm≤Rx≤0.13mm includes: 0.07mm≤Rx1≤0.13mm and 0.07mm≤Rx2≤0.13mm.

[0102] For example, such as Figure 22 and Figure 23 As shown, the slot 20 includes at least two first slots 201, the two first slots 201 including a first A slot 2011 and a first B slot 2012, the first A slot 2011 and the first B slot 2012 are arranged along the first direction h11.

[0103] like Figure 27 As shown, the bending portion 12 includes at least two first bending portions 121, each of which includes a first A bending portion 1211 and a first B bending portion 1212. The first A bending portion 1211 and the first B bending portion 1212 are arranged along a first direction h11. The first A groove 2011 and the first A bending portion 1211 correspond to each other, and the first B groove 2012 and the first B bending portion 1212 correspond to each other.

[0104] Optional, such as Figure 22As shown, along a direction parallel to the plane where the display module is located, the distance between the arc apex M of the first A-bending portion 1211 and the edge of the first A-groove 2011 is Rx11, and the distance between the arc apex M of the first B-bending portion 1212 and the edge of the first B-groove 2012 is Rx12; where Rx12 ≥ Rx11 + 0.12 mm. The arc apex M is the most convex position on the inner surface of the display panel 1 near the curvature center of the bending portion 12. This arrangement is equivalent to making the bending degree of the first A-bending portion 1211 greater than that of the first B-bending portion 1212, that is, making the first A-bending portion 1211 excessively bent relative to the first B-bending portion 1212. This helps to reduce the bezel width of the display module on the side of the first A-bending portion 1211, achieving a narrow bezel design for the display module.

[0105] For example, such as Figure 29 As shown, Figure 29 This is a cross-sectional schematic diagram of another display module provided in an embodiment of the present invention. The display module further includes a first protective adhesive layer 61 and a second protective adhesive layer 62; along the thickness direction h12 of the bent portion 12, the first protective adhesive layer 61 and the second protective adhesive layer 62 are located on both sides of the bent portion 12. The second protective adhesive layer 62 can be used to protect the bent portion 12 and reduce the risk of manual contact with the bent portion 12. For example, the first protective adhesive layer 61 can be set before the bent portion 12 is bent, and the second protective adhesive layer 62 can be set after bending.

[0106] It should be noted that the thickness direction of the bent portion 12 at a certain position can be parallel to the line connecting that position and the center of curvature O of the bent portion 12. Due to the bending characteristics of the bent portion 12, the thickness direction of the bent portion 12 is different at different positions. That is to say, the thickness direction h12 of the bent portion 12 can include multiple directions. Figure 29 The thickness directions h121 and h122 of the bent portion 12 at positions Q1 and Q2 are used as illustrations.

[0107] Optional, such as Figure 29 As shown, the support member 2 includes a first sub-support member 21 and a second sub-support member 22 located on both sides of the groove 20; the second sub-support member 22 is located on the side of the first sub-support member 21 away from the light-emitting side of the display panel 1.

[0108] like Figure 29 As shown, the first protective adhesive layer 61 is located on the side of the bent portion 12 near the center of curvature of the bent portion 12. The side of the first protective adhesive layer 61 near the first sub-support member 21 contacts the surface S21 of the first sub-support member 21 near the second sub-support member 22, so as to increase the contact area between the first protective adhesive layer 61 and the second sub-support member 22, so that the first protective adhesive layer 61 can provide more comprehensive protection for the bent portion 12.

[0109] For example, such as Figure 29 As shown, the side of the first protective adhesive layer 61 closest to the second sub-support 22 contacts the side surface S22 of the second sub-support 22. For example, as... Figure 29 As shown, in this embodiment of the invention, the second sub-support member 22 can be recessed relative to the buffer member 82 to increase the bending degree of the bending portion 12. Based on this arrangement, this embodiment of the invention adapts the adjustment of the relative positional relationship between the second sub-support member 22 and the buffer member 82 by having the side of the first protective adhesive layer 61 close to the second sub-support member 22 contact the side surface S22 of the second sub-support member 22.

[0110] For example, such as Figure 29 As shown, the second protective adhesive layer 62 is located on the side of the bent portion 12 away from the center of curvature of the bent portion 12; the display module also includes a cover plate 4 and a light-shielding layer 84 located on the light-emitting side of the display panel 1; the second protective adhesive layer 62 is at least partially in contact with the surface S84 of the light-shielding layer 84 near the display panel. This arrangement increases the coverage area of ​​the second protective adhesive layer 62, providing more comprehensive protection for the bent portion 12.

[0111] For example, the second protective adhesive layer 62 can be prepared by injection molding, such as low-injection pressure over-molding (LIPO) or 3D printing.

[0112] For example, such as Figure 29 As shown, the display module also includes a polarizer 81. In this embodiment of the invention, the edge E81 of the polarizer 81 and the edge E20 of the slot 20 can be made flush to adapt to the extreme design of narrow bezels.

[0113] In another alternative implementation, such as Figure 30 As shown, Figure 30 This is a cross-sectional schematic diagram of another display module provided in an embodiment of the present invention. The display module further includes a polarizer 81, a buffer 82, a third protective adhesive layer 63, and a fourth protective adhesive layer 64, wherein the third protective adhesive layer 63 and the fourth protective adhesive layer 64 are located on both sides of the bending portion 12 along the thickness direction h12.

[0114] For example, such as Figure 30 As shown, the edge E81 of the polarizer 81 can be recessed relative to the edge E20 of the groove 20, and the portion of the fourth protective adhesive layer 64 can be set to correspond to the portion of the first sub-support member 21 that extends beyond the polarizer 81.

[0115] For example, such as Figure 30As shown, the overlap width between the third protective adhesive layer 63 and the first sub-support member 21 is V1, where V1≤0.2mm; the width of the lower surface of the first sub-support member 21 exposed by the third protective adhesive layer 63 and the buffer member 82 is V2, where V2≥0.05mm.

[0116] like Figure 30 As shown, the third protective adhesive layer 63 also contacts the second sub-support member 22.

[0117] For example, such as Figure 30 The third protective adhesive layer 63 can be prepared by dispensing using a dispensing valve, such as a ceramic valve or a solenoid valve.

[0118] For example, such as Figure 2 , Figure 6 , Figure 8 , Figure 12 , Figure 22 , Figure 29 and Figure 30 As shown, the display module also includes a cover plate 4 located on the light-emitting side of the display panel 1. The distance between the edge of the cover plate 4 and the arc apex M of the bent portion 12 is d124, where d124 ≥ 0.1 mm. With this arrangement, the cover plate 4 can protect the bent portion 12 and prevent hands from touching it.

[0119] For example, such as Figure 2 As shown, the display module also includes a cover plate 4 located on the light-emitting side of the display panel 1, and the slot 20 includes a first edge E20 near the display area AA; along a direction parallel to the plane where the display module is located, the maximum distance between the edge E4 of the cover plate 4 and the first edge E20 of the slot 20 is A, where A ≥ 1.3 mm. The space between the edge E4 of the cover plate 4 and the first edge E20 of the slot 20 in the display module can be used to set up wiring. In this embodiment of the invention, by setting A ≥ 1.3 mm, the space for setting up wiring can be guaranteed.

[0120] For example, such as Figure 31 As shown, Figure 31 This is a top view schematic diagram of another display panel provided in an embodiment of the present invention, showing the display panel 1 in a flattened state at the bent portion. The display panel 1 further includes a shift register circuit 14 and a second binding portion 132. In the display panel, as the bent portion 12 bends, the shift register circuit 14 can be disposed on the side of the first bent portion 121 away from the display area AA; the second binding portion 132 can be disposed on the side of the second bent portion 122 away from the display area AA.

[0121] like Figure 31As shown, the shift register circuit 14 is electrically connected to the second bonding part 132 via a connecting line 15. For example, at least a portion of the connecting line 15 is located in the display area AA. By adopting this arrangement, the connecting line 15 can be avoided from being located in the non-display area AA, which is beneficial to further reduce the width of the non-display area located on the light-emitting side of the display panel 1 and improve the screen-to-body ratio of the display panel 1.

[0122] Optional, such as Figure 31 As shown, the display panel also includes a drive signal line 16, which is electrically connected to the shift register circuit 14. Specifically, the drive signal line 16 is electrically connected to the shift register unit 140 in the shift register circuit 14. For example, the drive signal line 16 can be used to provide a clock signal or a fixed potential signal line required for the shift register unit 140 to operate. The aforementioned connection line 15 can be electrically connected to the drive signal line 16.

[0123] Optional, such as Figure 31 As shown, the shift register circuit 14 includes multiple cascaded shift register units 140, which are arranged along the second direction h12.

[0124] For example, the display area AA includes scan lines (not shown), and the shift register unit 140 is electrically connected to the scan lines.

[0125] Optional, such as Figure 32 As shown, Figure 32 This is a cross-sectional schematic diagram of a display panel in the non-display area provided by an embodiment of the present invention. The display panel 1 further includes at least one isolation pillar 171, which at least partially surrounds the display area AA. The isolation pillar 171 can block moisture from the external environment, which is beneficial to improving the packaging reliability of the display panel.

[0126] like Figure 32 As shown, the display panel also includes a barrier 172, which can block moisture from the external environment. Figure 32 As shown, at least a portion of the retaining wall 172 may be located on the side of the isolation column 171 away from the flexible substrate 11.

[0127] Based on the same inventive concept, this invention also provides a method for manufacturing a display module, the method comprising: Step S1: Provide with, as shown Figure 3The display panel 1 shown includes a flexible substrate 11, which includes a display area AA and a non-display area NA. The non-display area NA includes a bending portion 12, which includes at least a first bending portion 121 and a second bending portion 122. The first bending portion 121 is located on one side of the display area AA in the first direction h11, and the second bending portion 122 is located on one side of the display area AA in the second direction h12. The first direction h11 and the second direction h12 intersect. Figure 3 The first direction h11 and the second direction h12 are perpendicular as an illustration.

[0128] Step S2: Provide, for example Figure 33 The support mother plate 200 shown is... Figure 33 This is a schematic diagram of the preparation of a support member according to an embodiment of the present invention. A groove 20 is formed in the support member mother plate 200 to obtain the support member 2. The groove 20 includes at least a first groove 201 and a second groove 202. Step S3: Position the support member 2 on the side of the display panel 1 away from the light-emitting side, and align the first groove 201 with the first bend 121 and the second groove 202 with the second bend 12, to obtain the following... Figure 3 The display module shown.

[0129] The method for manufacturing a display module provided in this embodiment of the invention involves providing a first bending portion 121 and a second bending portion 122 in the display panel 1. After the first bending portion 121 is bent, the non-display structure located on the side of the first bending portion 121 away from the display area AA can be disposed on the side of the display area away from the light-emitting side, thereby reducing the width of the non-display area of ​​the display panel 1 on the first direction h11 side. Similarly, after the second bending portion 122 is bent, the non-display structure located on the side of the second bending portion 122 away from the display area AA can be disposed on the side of the display area away from the light-emitting side, thereby reducing the width of the non-display area of ​​the display panel 1 on the second direction h12 side.

[0130] Furthermore, by providing a support member 2 and opening a first bending portion 121 corresponding to the first groove 201 and a second bending portion 122 corresponding to the second groove 202 in the support member 2, the bending characteristics of the first bending portion 121 and the second bending portion 122 can be improved while supporting the display panel 1.

[0131] For example, in embodiments of the present invention, the support mother plate 200 can be cut with a die or laser to create a groove 20 in the support mother plate 200.

[0132] Optionally, the size of the support mother plate 200 can be comparable to the size of a single display panel. In this case, the groove 20 can be created by die-cutting.

[0133] Alternatively, in this embodiment of the invention, the size of the support mother plate 200 may be set to be equal to the size of the display mother plate including multiple display panels. In this case, the groove 20 may also be created by laser cutting.

[0134] This invention also provides a display device, such as... Figure 34 As shown, Figure 34 This is a schematic diagram of a display device provided in an embodiment of the present invention. The display device includes the display module described above. The specific structure of the display module has been described in detail in the above embodiments and will not be repeated here. Of course, Figure 34 The display device shown is for illustrative purposes only. The display device can be any electronic device with display function, such as a mobile phone, tablet computer, laptop computer, e-reader, in-vehicle display, or television.

[0135] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0136] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display module, characterized in that, include: A display panel includes a flexible substrate, the flexible substrate including a display area and a non-display area, the non-display area including a bent portion, the bent portion including at least a first bent portion and a second bent portion, the first bent portion being located on one side of the display area in a first direction; the second bent portion being located on one side of the display area in a second direction; the first direction and the second direction intersect. A support member is located on the side of the display panel away from the light-emitting side. The support member includes a groove corresponding to the bent portion. The groove includes at least a first groove and a second groove. The first groove corresponds to the first bent portion, and the second groove corresponds to the second bent portion.

2. The display module according to claim 1, characterized in that, The display panel also includes a bonding part, which is located on the side of the display panel away from the light-emitting side.

3. The display module according to claim 2, characterized in that, It also includes a flexible circuit board electrically connected to the bonding portion; The binding portion includes at least a first binding portion and a second binding portion, wherein the first binding portion is located on the side of the first bend portion away from the display area; and the second binding portion is located on the side of the second bend portion away from the display area. The flexible circuit board includes at least a first flexible circuit board and a second flexible circuit board, wherein the first flexible circuit board is electrically connected to the first bonding portion; and the second flexible circuit board is electrically connected to the second bonding portion. Furthermore, the first flexible circuit board and the second flexible circuit board are electrically connected on the side of the display panel away from the light-emitting side.

4. The display module according to claim 3, characterized in that, The first flexible circuit board includes a plug-in portion, and the first flexible circuit board is electrically connected to the second flexible circuit board through the plug-in portion; The plug-in portion extends along the first direction; Alternatively, the connector may extend along the second direction.

5. The display module according to claim 3, characterized in that, The first flexible circuit board includes a body, a connecting part, and a plug-in part. The connecting part connects the body and the plug-in part. The length of the connecting part is I, where I ≤ I ≤ 44 mm.

6. The display module according to claim 3, characterized in that, The slot includes a first edge near the display area, and the display module also includes a cover plate located on the light-emitting side of the display panel, the cover plate including a rounded corner area; Along the thickness direction of the display module, the bent portion at least partially overlaps with the rounded corner area; within the rounded corner area, along a direction parallel to the plane where the display module is located, the maximum distance between the first edge and the edge of the cover plate is E, where E ≥ 0.125 mm; or, Along the thickness direction of the display module, the bent portion and the rounded corner area do not overlap, and along the direction parallel to the plane where the display module is located, the distance between the bent portion and the rounded corner area is C, where C≥1mm.

7. The display module according to claim 3, characterized in that, The first flexible circuit board includes a plug-in portion, a body, and a clearance body. The width of the clearance body is smaller than the width of the body, and the body is located on the side of the clearance body away from the second bending portion. The first flexible circuit board is electrically connected to the second flexible circuit board through the plug-in portion. The plug-in portion is connected to the main body, or the plug-in portion is connected to the avoidance body.

8. The display module according to claim 7, characterized in that, The width of the avoidance body is H, where H ≥ 3.5 mm.

9. The display module according to claim 3, characterized in that, The second flexible circuit board includes a body, The maximum distance between the body of the second flexible circuit board and the first flexible circuit board is F, where F ≥ 0.13 mm.

10. The display module according to claim 3, characterized in that, The first flexible circuit board includes a body and a clearance element, and the second flexible circuit board includes a body; wherein, The length of the clearance body of the first flexible circuit board is less than or equal to the length of the body of the second flexible circuit board.

11. The display module according to claim 3, characterized in that, The first flexible circuit board includes a body and a clearance body, and the second flexible circuit board includes a body. The width of the body of the first flexible circuit board is smaller than the width of the body of the second flexible circuit board.

12. The display module according to claim 3, characterized in that, The first flexible circuit board includes a body and a clearance body, and the second flexible circuit board includes a body; The clearance body of the first flexible circuit board is adjacent to the body of the second flexible circuit board, and there is a gap between the clearance body of the first flexible circuit board and the body of the second flexible circuit board.

13. The display module according to claim 3, characterized in that, The first flexible circuit board includes a body and a clearance body, and the second flexible circuit board includes a body; Along the second direction, the body of the first flexible circuit board overlaps at least partially with the second flexible circuit board.

14. The display module according to claim 3, characterized in that, The length of the first flexible circuit board in the second direction is L1. The length of the second flexible circuit board in the second direction is L2, wherein, 1 / 5 ≤ L1 / L2 ≤ 1; Alternatively, L1 / L2≥2.

15. The display module according to claim 3, characterized in that, The first flexible circuit board includes at least two sub-flexible circuit boards, and the at least two sub-flexible circuit boards are arranged along the second direction.

16. The display module according to claim 15, characterized in that, The sub-flexible circuit board includes at least two pin regions, which are spaced apart in the second direction.

17. The display module according to claim 3, characterized in that, The first flexible circuit board includes at least one pin area, and at least one of the pin areas is located on the side of the first flexible circuit board close to the second flexible circuit board.

18. The display module according to claim 3, characterized in that, The support includes a first sub-support and a second sub-support located on both sides of the groove; the second sub-support is located on the side of the first sub-support away from the light-emitting side of the display panel. The second sub-support member has a protruding portion extending beyond the display panel; the display module also includes an adhesive, which is located between the flexible circuit board and the protruding portion along the thickness direction of the display module.

19. The display module according to claim 18, characterized in that, Along a direction parallel to the plane where the display module is located, the length of the protruding part is greater than or equal to 5mm.

20. The display module according to claim 3, characterized in that, The flexible circuit board includes at least two first flexible circuit boards, each of which includes a first flexible circuit board A and a first flexible circuit board B, and the first flexible circuit board A and the first flexible circuit board B are arranged along the first direction.

21. The display module according to claim 20, characterized in that, The maximum distance between the edge of the first flexible circuit board A away from the first flexible circuit board B and the edge of the first flexible circuit board B away from the first flexible circuit board A in the first direction is L; The width of the first flexible circuit board A is J1, and the width of the first flexible circuit board B is J2, wherein L / 2≥J1≥10mm; L / 2≥J2≥10mm.

22. The display module according to claim 20, characterized in that, The width of the first flexible circuit board is J. L The width of the first flexible circuit board is J. R , where J L ≥J R .

23. The display module according to claim 20, characterized in that, Along the thickness direction of the display module, the first flexible circuit board A is located on the side of the first flexible circuit board B away from the light-emitting side of the display panel.

24. The display module according to claim 1, characterized in that, The width of each groove is greater than or equal to 0.5 mm.

25. The display module according to claim 1, characterized in that, The width of the first slot is greater than or equal to the width of the second slot.

26. The display module according to claim 1, characterized in that, The support includes a first sub-support and a second sub-support located on both sides of the groove; the second sub-support is located on the side of the first sub-support away from the light-emitting side of the display panel. Both the first sub-support member and the second sub-support member include a side surface and a bottom surface, and the included angle between the side surface and the bottom surface is θ, wherein, in at least one of the first sub-support member and the second sub-support member, 85°≤θ≤110°.

27. The display module according to claim 1, characterized in that, The groove includes a first edge near the display area. Along a direction parallel to the plane where the display module is located, the distance between the arc apex of the bend and the first edge is Rx, where 0.07 mm ≤ Rx ≤ 0.13 mm.

28. The display module according to claim 1, characterized in that, The groove includes at least two first grooves, the two first grooves including a first groove A and a first groove B, the first groove A and the first groove B being arranged along the first direction; The bending portion includes at least two first bending portions, each of which includes a first A bending portion and a first B bending portion, and the first A bending portion and the first B bending portion are arranged along the first direction; wherein, the first A groove and the first A bending portion correspond to each other; the first B groove and the first B bending portion correspond to each other.

29. The display module according to claim 28, characterized in that, Along a direction parallel to the plane where the display module is located, the distance between the arc apex of the first A bend and the edge of the first A groove is Rx11, and the distance between the arc apex of the first B bend and the edge of the first B groove is Rx12; wherein, Rx11≥Rx12+0.12mm.

30. The display module according to claim 1, characterized in that, It also includes a first protective adhesive layer and a second protective adhesive layer; Along the thickness direction of the bend, the first protective adhesive layer and the second protective adhesive layer are located on both sides of the bend.

31. The display module according to claim 30, characterized in that, The support includes a first sub-support and a second sub-support located on both sides of the groove; the second sub-support is located on the side of the first sub-support away from the light-emitting side of the display panel. The first protective adhesive layer is located on the side of the bent portion near the center of curvature of the bent portion. The side of the first protective adhesive layer near the first sub-support member is in contact with the surface of the first sub-support member near the second sub-support member; The side of the first protective adhesive layer closest to the second sub-support member is in contact with the side of the second sub-support member.

32. The display module according to claim 30, characterized in that, The second protective adhesive layer is located on the side of the bend away from the center of curvature of the bend; The display module further includes a cover plate and a light-shielding layer located on the light-emitting side of the display panel; the second protective adhesive layer is at least partially in contact with the surface of the light-shielding layer near the display panel.

33. The display module according to claim 1, characterized in that, It also includes a cover plate located on the light-emitting side of the display panel, wherein the distance between the edge of the cover plate and the arc apex of the bend is greater than or equal to 0.1 mm.

34. The display module according to claim 1, characterized in that, It also includes a cover plate located on the light-emitting side of the display panel. The slot includes a first edge near the display area; Along a direction parallel to the plane where the display module is located, the maximum distance between the edge of the cover plate and the first edge is A, where A ≥ 1.3 mm.

35. The display module according to claim 1, characterized in that, It also includes shift register circuitry and a second bonding section. The shift register circuit is located on the side of the first bend away from the display area; the second binding part is located on the side of the second bend away from the display area. The shift register circuit is electrically connected to the second binding part via a connecting line; At least a portion of the connecting line is located in the display area.

36. The display module according to claim 35, characterized in that, The shift register circuit includes multiple cascaded shift register units, which are arranged along the second direction.

37. The display module according to claim 1, characterized in that, The display panel also includes at least one isolation pillar, which at least partially surrounds the display area.

38. A method for manufacturing a display module, characterized in that, include: A display panel is provided, the display panel including a flexible substrate, the flexible substrate including a display area and a non-display area, the non-display area including a bent portion, the bent portion including at least a first bent portion and a second bent portion, the first bent portion being located on one side of the display area in a first direction; the second bent portion being located on one side of the display area in a second direction; the first direction and the second direction intersect. A support mother plate is provided, and a groove is formed in the support mother plate to obtain a support, wherein the groove includes at least a first groove and a second groove; The support member is positioned on the side of the display panel away from the light-emitting side, and the first groove corresponds to the first bend, and the second groove corresponds to the second bend.

39. The preparation method according to claim 38, characterized in that, The groove is created in the support mother plate by cutting with a cutting tool or laser.

40. A display device, characterized in that, Includes the display module as described in any one of claims 1-37.

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