Display module, manufacturing method of display module and display device

Abstract

The embodiment of the invention provides a display module, a manufacturing method of the display module and a display device.The display module comprises a display panel and an anti-wrinkling supporting piece, the display panel comprises a stretching area and a first non-stretching area arranged on at least one side of the stretching area, the stretching area comprises pixel islands and stretchable wires, and the first non-stretching area comprises a second non-stretching area arranged on at least one side of the stretching area; the pixel islands are used for achieving the light emitting function of the display panel, the stretchable wires are connected between the adjacent pixel islands, and when a stretching area of the display panel is stretched, the stretchable wires can be stretched along with the stretching area. The first non-stretching area comprises a wiring area and a bonding area, and the first non-stretching area is mainly used for clamping a screen body and bonding a chip during stretching. The crease-resistant supporting piece is attached to the surface of one side of the first non-stretching area.

Description

Technical Field

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

[0002] Organic light-emitting diodes (OLEDs) are self-emissive display devices. Compared to traditional liquid crystal displays (LCDs), OLED technology does not require a backlight and is self-emissive. OLEDs use a thin layer of organic material and a glass substrate; when current flows through, the organic material emits light. Therefore, OLED display panels can significantly save energy, be made lighter and thinner, withstand a wider range of temperature variations than LCD panels, and have a wider viewing angle. OLED display panels are expected to become the next-generation flat panel display technology after LCDs and are currently one of the most watched technologies in the flat panel display field.

[0003] Among them, stretch display, which can expand or compress the area of ​​the display under the action of tension to meet the needs of consumers in different usage scenarios, is one of the important cutting-edge directions in display technology. Summary of the Invention

[0004] This application provides a display module, a method for manufacturing the display module, and a display device, aiming to improve the problem of wrinkles in the non-stretched area of ​​the display module.

[0005] This application provides a display module, a method for manufacturing the display module, and a display device, aiming to improve the problem of wrinkles in the non-stretched area of ​​the display module.

[0006] An embodiment of the first aspect of this application provides a display module including: a display panel, including a stretchable area and a first non-stretchable area disposed on at least one side of the stretchable area, the stretchable area including pixel islands and stretchable traces, the stretchable traces connecting adjacent pixel islands, the first non-stretchable area including a trace area and a bonding area; and an anti-wrinkle support attached to one side surface of the display panel of the first non-stretchable area.

[0007] According to any of the foregoing embodiments of the first aspect of this application, a retractable support member is further included, which is disposed on one side of the display panel in the stretching area.

[0008] According to any of the foregoing embodiments of the first aspect of this application, at least the extended portion of the retractable support overlaps with one side of the display panel in the first non-stretchable area.

[0009] According to any of the foregoing embodiments of the first aspect of this application, there is a gap between the retractable support member and the anti-wrinkle support member.

[0010] According to any of the foregoing embodiments of the first aspect of this application, the retractable support member is made of a transparent material.

[0011] According to any of the foregoing embodiments of the first aspect of this application, the elastic modulus of the telescopic support member ranges from 200MPa to 7000MPa.

[0012] According to any of the foregoing embodiments of the first aspect of this application, the anti-wrinkle support is a rigid member.

[0013] According to any of the foregoing embodiments of the first aspect of this application, a retractable connecting portion is provided within the gap.

[0014] According to any of the foregoing embodiments of the first aspect of this application, the retractable support member and the anti-wrinkle support member are bonded together by a connecting portion.

[0015] According to any of the foregoing embodiments of the first aspect of this application, the connecting part is at least one of acrylic material, silicone, and epoxy resin.

[0016] According to any of the foregoing embodiments of the first aspect of this application, the thickness of the connecting portion along the first direction is 70μm-350μm.

[0017] According to any of the foregoing embodiments of the first aspect of this application, the width of the connecting portion along the second direction is 100μm-300μm.

[0018] According to any of the foregoing embodiments of the first aspect of this application, the positive projection area of ​​the anti-wrinkle support member falling on the display panel along the first direction is greater than or equal to 65% of the area of ​​the first non-stretched area.

[0019] According to any of the foregoing embodiments of the first aspect of this application, the anti-wrinkle support member is attached to the first non-stretched area on both sides along the second direction, wherein the attachment area of ​​the anti-wrinkle support member on both sides along the second direction is equal to 65%-100% of the area of ​​the first non-stretched area.

[0020] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes a clamping area located between the stretching area and the first non-stretching area, the orthographic projection of the wiring area and the bonding area along the first direction falls within the anti-wrinkle support member, and the orthographic projection of the clamping area along the first direction at least partially falls within the retractable support member.

[0021] According to any of the foregoing embodiments of the first aspect of this application, the routing area includes a trace, and the bonding area includes a pad.

[0022] According to any of the foregoing embodiments of the first aspect of this application, a second adhesive layer is provided between the anti-wrinkle support member and the stretching area, and the anti-wrinkle support member is attached to the display panel side surface of the first non-stretching area through the second adhesive layer, and / or, a first adhesive layer is provided between the telescopic support member and the stretching area, and the telescopic support member is attached to the surface of the stretching area and at least a portion of the display panel side surface of the first non-stretching area through the first adhesive layer.

[0023] According to any of the foregoing embodiments of the first aspect of this application, the first adhesive layer is flush with the boundary of the retractable support.

[0024] According to any of the foregoing embodiments of the first aspect of this application, the second adhesive layer is flush with the boundary of the anti-wrinkle support.

[0025] According to any of the foregoing embodiments of the first aspect of this application, the first non-stretched area includes a clamping area, a wiring area, and a bonding area arranged sequentially along the second direction away from the stretching area, and the orthographic projection of the boundary of the retractable support member along the second direction on the display panel is located at the junction of the clamping area and the wiring area.

[0026] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of one side boundary of the anti-wrinkle support member along the second direction onto the display panel is located at the junction of the clamping area and the wiring area.

[0027] According to any of the foregoing embodiments of the first aspect of this application, the anti-wrinkle support member is located at the edge of the display panel along the other side boundary of the second direction.

[0028] According to any of the foregoing embodiments of the first aspect of this application, the thickness of the first adhesive layer is greater than or equal to the thickness of the second adhesive layer.

[0029] According to any of the foregoing embodiments of the first aspect of this application, the thickness of the first adhesive layer is 13μm-150μm.

[0030] According to any of the foregoing embodiments of the first aspect of this application, the thickness of the second adhesive layer is 13μm-150μm.

[0031] According to any of the foregoing embodiments of the first aspect of this application, there is a gap between the first adhesive layer and the second adhesive layer.

[0032] According to any of the foregoing embodiments of the first aspect of this application, a retractable connecting portion is provided within the gap.

[0033] According to any of the foregoing embodiments of the first aspect of this application, the first adhesive layer and the second adhesive layer are bonded together by a connecting portion.

[0034] According to any of the foregoing embodiments of the first aspect of this application, the relationship between the elastic modulus a of the first adhesive layer, the elastic modulus b of the second adhesive layer, and the elastic modulus c of the connecting portion satisfies: a < b < c.

[0035] According to any of the foregoing embodiments of the first aspect of this application, the materials of the first adhesive layer and the retractable support are materials of the same material system.

[0036] According to any of the foregoing embodiments of the first aspect of this application, the material of the first adhesive layer includes an organosilicon material.

[0037] According to any of the foregoing embodiments of the first aspect of this application, the material of the second adhesive layer includes an acrylic material.

[0038] According to any of the foregoing embodiments of the first aspect of this application, the material of the retractable support includes silicone material.

[0039] According to any of the foregoing embodiments of the first aspect of this application, the material of the retractable support includes polydimethylsiloxane.

[0040] According to any of the foregoing embodiments of the first aspect of this application, the material of the anti-wrinkle support includes polyethylene terephthalate.

[0041] According to any of the foregoing embodiments of the first aspect of this application, the thickness of the retractable support is greater than or equal to the thickness of the anti-wrinkle support.

[0042] According to any of the foregoing embodiments of the first aspect of this application, the thickness of the telescopic support member is 60μm-200μm.

[0043] According to any of the foregoing embodiments of the first aspect of this application, the thickness of the anti-wrinkle support member is 60μm-200μm.

[0044] According to any of the foregoing embodiments of the first aspect of this application, a flexible support layer is further included on the side of the display panel away from the anti-wrinkle support member, the flexible support layer covering the display panel side of the stretching area and extending to the display panel side of the first non-stretching area.

[0045] According to any of the foregoing embodiments of the first aspect of this application, a third adhesive layer is provided between the flexible support layer and the stretching region, and the flexible support layer is attached to at least a portion of the surface of the display panel side of the stretching region and the display panel side of the first non-stretching region through the third adhesive layer.

[0046] According to any of the foregoing embodiments of the first aspect of this application, a plurality of pixel islands are distributed in an array.

[0047] According to any of the foregoing embodiments of the first aspect of this application, at least a portion of the third adhesive layer is located between adjacent pixel islands and covers the stretchable traces.

[0048] According to any of the foregoing embodiments of the first aspect of this application, the flexible support layer and the retractable support member have equal thicknesses, and / or the flexible support layer and the anti-wrinkle support member have equal thicknesses.

[0049] According to any of the foregoing embodiments of the first aspect of this application, the third adhesive layer and the first adhesive layer have equal thicknesses, and / or the third adhesive layer and the second adhesive layer have equal thicknesses.

[0050] According to any of the foregoing embodiments of the first aspect of this application, the thickness of the third adhesive layer is 13μm-150μm.

[0051] According to any of the foregoing embodiments of the first aspect of this application, the thickness of the flexible support layer is 60μm-200μm.

[0052] According to any of the foregoing embodiments of the first aspect of this application, the adhesiveness of the flexible support layer increases over time after the material is bonded.

[0053] According to any of the foregoing embodiments of the first aspect of this application, the material of the third adhesive layer includes an organosilicon material.

[0054] According to any of the foregoing embodiments of the first aspect of this application, the material of the flexible support layer includes polydimethylsiloxane;

[0055] According to any of the foregoing embodiments of the first aspect of this application, the flexible support layer is made of a transparent material.

[0056] According to any of the foregoing embodiments of the first aspect of this application, the direction from the stretching region to the first non-stretching region is the second direction, the flexible support layer includes a first side facing the first non-stretching region along the second direction, the first non-stretching region includes a second side facing away from the stretching region along the second direction and a third side facing the stretching region, the distance between the first side and the second side is 5mm-10mm, and / or, the distance between the first side and the third side is at least 10mm, wherein the first direction is the thickness direction of the display panel, and the second direction is perpendicular to the first direction.

[0057] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes a second non-stretched region located on the side opposite to the first non-stretched region of the stretching region, the stretching ratio of the second non-stretched region is greater than the stretching ratio of the first non-stretched region, and the flexible support layer extends from the first non-stretched region to the second non-stretched region.

[0058] According to any of the foregoing embodiments of the first aspect of this application, the orthogonal projection of the stretching region and the second non-stretching region along the first direction is located in the flexible support layer.

[0059] An embodiment of the second aspect of this application provides a display module, the display module comprising: a display panel including a stretchable region and a first non-stretchable region disposed on at least one side of the stretchable region, the stretchable region including pixel islands and stretchable traces, the stretchable traces connecting adjacent pixel islands, the first non-stretchable region including a trace area and a bonding area; a wrinkle-resistant support member attached to one side of the display panel of the first non-stretchable region; and a telescopic support member disposed on one side of the display panel of the stretchable region and extending at least partially overlapping one side of the display panel of the first non-stretchable region; wherein the elastic modulus of the telescopic support member is less than the elastic modulus of the wrinkle-resistant support member.

[0060] According to any of the foregoing embodiments of the second aspect of this application, the difference between the elastic modulus of the telescopic support and the elastic modulus of the anti-wrinkle support is 180MPa to 6960MPa.

[0061] According to any of the foregoing embodiments of the second aspect of this application, the anti-wrinkle support is a rigid member.

[0062] According to any of the foregoing embodiments of the second aspect of this application, a second adhesive layer is provided between the anti-wrinkle support member and the stretching area, and the anti-wrinkle support member is attached to the display panel side surface of the first non-stretching area through the second adhesive layer. And / or, a first adhesive layer is provided between the telescopic support member and the display panel side surface of the stretching area, and the telescopic support member is attached to at least a portion of the display panel side surface of the stretching area and the display panel side surface of the first non-stretching area through the first adhesive layer.

[0063] An embodiment of the third aspect of this application provides a method for manufacturing a display module, comprising: bonding an anti-wrinkle support member with a second adhesive layer to one side of a process film with the surface facing away from the second adhesive layer.

[0064] A retractable support member with a first adhesive layer is bonded to one side of the process membrane, away from the surface of the first adhesive layer.

[0065] The surfaces of the first and second adhesive layers facing away from the process film are placed on one side of the display panel, and the anti-wrinkle support is attached to the surface of the display panel on one side of the first non-stretched area; a pressing force is applied so that the anti-wrinkle support and the retractable support are attached to the display panel through the second adhesive layer and the first adhesive layer, respectively; the process film is then removed.

[0066] According to any of the foregoing embodiments of the third aspect of this application, the materials of the first adhesive layer and the retractable support both include silicone materials.

[0067] According to any of the foregoing embodiments of the third aspect of this application, the step of bonding the surface of the retractable support member away from the first adhesive layer to one side of the process film further includes: creating a gap between the retractable support member and the anti-wrinkle support member.

[0068] According to any of the foregoing embodiments of the third aspect of this application, the step of attaching the first adhesive layer and the second adhesive layer to the side of the display panel away from the process film further includes: using a bonding roller to sequentially press the retractable support member and the anti-wrinkle support member.

[0069] According to any of the foregoing embodiments of the third aspect of this application, an adhesive film is provided on one side of the process film. In the step of bonding the surface of the anti-wrinkle support member away from the second adhesive layer to one side of the process film, the surface of the anti-wrinkle support member away from the second adhesive layer is bonded to the surface of the adhesive film away from the process film.

[0070] In the step of bonding the surface of the retractable support away from the first adhesive layer to the side of the process membrane, the surface of the retractable support away from the first adhesive layer is bonded to the surface of the adhesive membrane away from the process membrane.

[0071] In the step of removing the process film to form the display module, the process film and the adhesive film are removed.

[0072] According to any of the foregoing embodiments of the third aspect of this application, before the step of bonding the retractable support member with the first adhesive layer to one side of the process film away from the surface of the first adhesive layer, the protective film on the display panel with a glass substrate on the first side and a protective film on the second side is removed; a third support portion is attached to the second side of the display panel using a third adhesive layer, the material of the third adhesive layer including silicone material, at least a portion of the third adhesive layer is located between adjacent pixel islands and covers the stretchable traces and is bonded to the glass substrate; the glass substrate is scanned with a laser within a preset time to remove the glass substrate.

[0073] According to any of the foregoing embodiments of the third aspect of this application, the preset time is less than or equal to 3 hours.

[0074] According to any of the foregoing embodiments of the third aspect of this application, after the step of removing the process film, the method further includes: applying a connecting portion between the retractable support and the anti-wrinkle support, and between the first adhesive layer and the second adhesive layer, such that the retractable support and the anti-wrinkle support are bonded through the connecting portion, and the first adhesive layer and the second adhesive layer are bonded through the connecting portion.

[0075] According to any of the foregoing embodiments of the third aspect of this application, after applying a connecting portion between the retractable support member and the anti-wrinkle support member and between the first adhesive layer and the second adhesive layer, such that the retractable support member and the anti-wrinkle support member are bonded through the connecting portion, and the first adhesive layer and the second adhesive layer are bonded through the connecting portion, the method further includes: subjecting the connecting portion to ultraviolet curing or heat curing.

[0076] According to an embodiment of the fourth aspect of this application, a display device is included, which includes a display module as described above, or a display module manufactured by the aforementioned method for manufacturing a display module.

[0077] In the display module and its manufacturing method provided in this application embodiment, the display module includes a display panel and an anti-wrinkle support. The display panel includes a stretching area and a first non-stretching area disposed on at least one side of the stretching area. The stretching area includes pixel islands and stretchable traces. Multiple pixel islands are arranged in an array. The pixel islands are used to realize the light-emitting function of the display panel, and the stretchable traces connect adjacent pixel islands. When the stretching area of ​​the display panel is stretched, the stretchable traces can be stretched accordingly. The first non-stretching area includes a trace area and a bonding area. The first non-stretching area is mainly used to clamp the screen body and bond the chip during stretching. The anti-wrinkle support is attached to one side surface of the first non-stretching area. With the support strength of the anti-wrinkle support, the possibility of wrinkle deformation in the first non-stretching area is reduced, the impact of stress on the trace area and bonding area is reduced, and the service life of the display module is improved. Attached Figure Description

[0078] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0079] Figure 1 One of the structural schematic diagrams of a display module provided for an embodiment of the first aspect of this application;

[0080] Figure 2 This is a second schematic diagram of the structure of a display module provided in an embodiment of this application;

[0081] Figure 3 This is the third schematic diagram of the structure of a display module provided in the embodiments of this application;

[0082] Figure 4 This is one of the structural schematic diagrams of the manufacturing process of a display module provided in the embodiments of this application;

[0083] Figure 5 This is one of the manufacturing flowcharts for a display module provided in an embodiment of this application;

[0084] Figure 6 This is one of the structural schematic diagrams of the manufacturing process of a display module provided in another embodiment of this application;

[0085] Figure 7 This is a second schematic diagram of the manufacturing process of a display module provided in another embodiment of this application;

[0086] Figure 8 This is the third structural schematic diagram of the manufacturing process of a display module provided in another embodiment of this application;

[0087] Figure 9 This is a second flowchart illustrating the manufacturing process of a display module, as provided in an embodiment of this application.

[0088] Figure 10 This is the third flowchart illustrating the manufacturing process of a display module provided in this application embodiment;

[0089] Figure 11 This is a second schematic diagram illustrating the bonding process of a display module provided in an embodiment of this application.

[0090] Figure 12 This is the fourth flowchart illustrating the manufacturing process of a display module provided in this application embodiment;

[0091] Figure 13 This is the fifth flowchart illustrating the manufacturing process of a display module provided in this application embodiment;

[0092] Figure 14 This is a fourth schematic diagram of the manufacturing process of a display module provided in another embodiment of this application;

[0093] Figure 15 This is the fifth schematic diagram of a structure in the manufacturing process of a display module according to another embodiment of this application;

[0094] Figure 16 This is a sixth schematic diagram of the manufacturing process of a display module provided in another embodiment of this application;

[0095] Figure 17 This is the seventh structural schematic diagram of the manufacturing process of a display module provided in another embodiment of this application;

[0096] Figure 18 This is the sixth flowchart illustrating the manufacturing process of a display module provided in this application embodiment;

[0097] Figure 19 This is the seventh flowchart of the manufacturing process of a display module provided in this application embodiment.

[0098] Explanation of reference numerals in the attached figures:

[0099] 10 - Display module;

[0100] 000 - Display panel; 001 - Stretchable area; 002 - First non-stretchable area; 003 - Second non-stretchable area; 004 - Pixel island; 005 - Stretchable trace; 006 - Lamination roller; 007 - Lamination tool;

[0101] 100 - Anti-wrinkle support; 101 - First adhesive layer; 102 - Telescopic support; 103 - Second adhesive layer; 104 - Gap; 105 - Connecting part;

[0102] 200 - Flexible support layer; 201 - Third adhesive layer; 203 - First side surface; 204 - Second side surface; 205 - Third side surface;

[0103] 300 - Clamping area; 301 - Routing area; 302 - Bonding area; 303 - Routing trace; 304 - Solder pad;

[0104] 400 - Glass substrate; 401 - Adhesive film; 402 - Process film; 403 - Protective film;

[0105] X - First direction; Y - Second direction. Detailed Implementation

[0106] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0107] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0108] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0109] Currently, the main components of a stretchable monitor screen include a non-stretchable area and a stretchable area. The stretchable area features an island-bridge design, consisting of non-stretchable "islands" and connecting, stretchable "bridges" (wires). These bridges are curved, and during stretching, the wires gradually unfold from a curved shape to a straight state, thus expanding the overall screen area. During screen bonding, the elastic material and adhesive film are relatively soft. Under pressure from the bonding rollers, the adhesive film is stretched. Once bonding is complete and the roller pressure disappears, the adhesive film contracts and rebounds, generating compressive stress on the screen. In the stretchable area, the island-bridge structure allows for easy deformation of the screen. The material rebound causes a two-dimensional shape change in the island-bridge structure, preventing wrinkles. In the non-stretchable area, near the clamping zone on the side closest to the stretchable area, the material is softer and has a larger surface area, making it easier to absorb stress and less prone to cracking. In the non-stretched area, the bonding area and other areas with concentrated metal lines on the side away from the stretched area contain a large amount of metal with high modulus, thin thickness, and high density. Under the compressive stress caused by the shrinkage of the elastomer material, the stress is difficult to absorb and will release pressure by forming wrinkles. Therefore, in the prior art, wrinkles will form in the non-stretched area, and the metal lines will be subjected to compressive stress for a long time, which can easily lead to display defects. This application provides a display module to solve the above problems.

[0110] To better understand this application, the following will be combined with... Figures 1 to 2 The display panel of the embodiment of this application will be described in detail.

[0111] Figure 1 One of the structural schematic diagrams of a display module provided for an embodiment of the first aspect of this application. Figure 2 This is a second schematic diagram of the structure of a display module provided in an embodiment of this application.

[0112] Please refer to the following: Figure 1 and Figure 2 An embodiment of the first aspect of this application provides a display module 10, which includes a display panel 000 and an anti-wrinkle support member 100. The display panel 000 includes a stretchable area 001 and a first non-stretchable area 002 disposed on at least one side of the stretchable area 001. The stretchable area 001 includes pixel islands 004 and stretchable traces 005, which connect adjacent pixel islands 004. The first non-stretchable area 002 includes a trace area 301 and a bonding area 302. The anti-wrinkle support member 100 is attached to one surface of the display panel 000 in the first non-stretchable area 002, and the anti-wrinkle support member 100 is a rigid member.

[0113] In the display module 10 provided in this application embodiment, the display module 10 includes a display panel 000 and an anti-wrinkle support member 100. The display panel 000 includes a stretchable area 001 and a first non-stretchable area 002 disposed on at least one side of the stretchable area 001. The stretchable area 001 includes pixel islands 004 and stretchable traces 005. The pixel islands 004 are used to realize the light-emitting function of the display panel 000, and the stretchable traces 005 are connected between adjacent pixel islands 004. When the stretchable area 001 of the display panel 000 is stretched, the stretchable traces 005 can be stretched accordingly. The first non-stretchable area 002 includes a trace area 301 and a bonding area 302. The first non-stretchable area 002 is mainly used to clamp the screen body and bond the chip during stretching. The anti-wrinkle support 100 is attached to one side surface of the display panel 000 in the first non-stretch area 002. With the support strength of the anti-wrinkle support 100, the possibility of wrinkle deformation in the first non-stretch area 002 is reduced, the stress on the display panel 000 side of the wiring area 301 and the display panel 000 side of the bonding area 302 is reduced, and the service life of the display module 10 is improved.

[0114] In some alternative embodiments, such as Figure 3 As shown, the display module 10 also includes a retractable support member 102, which is disposed on one side surface of the display panel 000 in the stretching area 001.

[0115] Optionally, at least part of the extension of the retractable support 102 may overlap with the display panel 000 of the first non-stretchable area 002, providing protection and support for the portion of the display panel 000 of the first non-stretchable area 002 covered by the retractable support 102.

[0116] In these optional embodiments, the retractable support 102 is disposed on one side surface of the display panel 000 of the stretching area 001. The retractable support 102 has a low elastic modulus. When the screen is compressed during the bonding process, the retractable support 102 can deform with the screen of the stretching area 001 to protect and support the stretching area 001.

[0117] In some alternative embodiments, there is a gap 104 between the retractable support 102 and the anti-wrinkle support 100.

[0118] In these optional embodiments, during the bonding process, the retractable support 102 is compressed along a first direction X, which is the thickness direction of the display panel 000. After bonding, the retractable support 102 may spring back. A gap 104 exists between the retractable support 102 and the anti-wrinkle support 100, providing some space for the retractable support 102 to spring back. This improves the force transmission between the retractable support 102 and the anti-wrinkle support 100, thereby improving the transmission of the springback force through the anti-wrinkle support 100 to the first non-stretched area 002, reducing the possibility of wrinkles in the first non-stretched area 002, and increasing the service life of the display module 10.

[0119] Optionally, the retractable support 102 can be made of transparent material, thereby increasing the light transmittance of the display panel 000.

[0120] Optionally, the elastic modulus of the anti-wrinkle support 100 can range from 200MPa to 7000MPa. The elastic modulus of the anti-wrinkle support 100 can be 200MPa, 1000MPa, 3000MPa, 5000MPa, or 7000MPa. This can improve the problem of insufficient support force for the first non-tension region 002 caused by an excessively small elastic modulus of the anti-wrinkle support 100. It can also improve the problem of easy breakage of the first non-tension region 002 at the interface between the retractable support 102 and the anti-wrinkle support 100 due to a large difference in elastic modulus between the retractable support 102 and the anti-wrinkle support 100.

[0121] Optionally, the anti-wrinkle support 100 can be a rigid component, which makes the anti-wrinkle support 100 provide better support for the first non-stretched area 002, thereby further reducing the possibility of wrinkle deformation in the first non-stretched area 002.

[0122] Optionally, a retractable connecting part 105 is provided within the gap 104 to provide sufficient support for the display panel 000.

[0123] Optionally, the retractable support 102 and the anti-wrinkle support 100 are bonded together by the connecting part 105 to reduce the risk of the retractable support 102 and the anti-wrinkle support 100 falling off and warping at the gap 104.

[0124] Optionally, the connecting part 105 may be made of at least one of acrylic material, silicone, or epoxy adhesive, which can better bond the retractable support 102 and the anti-wrinkle support 100.

[0125] Optionally, the thickness of the connecting portion 105 along the first direction X is 70μm-350μm, which is adapted to the thickness of the telescopic support 102 and the anti-wrinkle support 100.

[0126] Optionally, the width of the connecting part 105 along the second direction Y is 100μm-300μm, which improves the problem of poor bonding effect caused by the connecting part 105 being too thin, and at the same time improves the problem of easy glue overflow and damage to the display panel 000 caused by the connecting part 105 being too thick.

[0127] In some alternative embodiments, the anti-wrinkle support 100 has a projected area along the first direction X on the display panel 00 that is greater than or equal to 65% of the area of ​​the first non-stretched region 002.

[0128] In these alternative embodiments, the projected area of ​​the anti-wrinkle support 100 along the first direction X onto the display panel 00 can be equal to 65%, 70%, 80%, 90%, or 100% of the area of ​​the first non-stretched area 002, which can improve the problem that some of the first sub-stretched areas 001 will still produce wrinkles due to the small area of ​​the anti-wrinkle support 100.

[0129] Optionally, the anti-wrinkle support 100 can be bonded to one side of the display panel 000 of the first non-stretched area 002 only on both sides along the second direction Y, wherein the bonding area of ​​the anti-wrinkle support 100 on both sides along the second direction Y is equal to 65%-100% of the area of ​​the first non-stretched area 002. The bonding area can be 65%, 70%, 80%, 90%, or 100% of the area of ​​the display panel 000 side of the first non-stretched area 002, which can reduce processing time and save raw materials.

[0130] Optionally, the display panel 000 further includes a clamping area 300 located between the stretching area 001 and the first non-stretching area 002, wherein the clamping area 300, the wiring area 301, and the bonding area 302 are sequentially distributed in a direction away from the stretching area 001. Optionally, as... Figure 1 As shown (only the traces 303 of the trace area 301 and the bonding area 302 are shown), the trace area 301 includes traces 303, which can be metal traces 303, and the bonding area 302 includes pads 304. The trace area 301 is a concentrated area of ​​metal lines, and the bonding area 302 is provided with pads 304 for bonding flexible circuit boards or integrated circuits. Therefore, the trace area 301 and the bonding area 302 are arranged with a large amount of metal. When the first non-stretched area 002 wrinkles, the metal traces 303 are subjected to stress compression, which can easily cause display defects. In this embodiment, the orthogonal projection of the trace area 301 and the bonding area 302 along the first direction X falls within the wrinkle-resistant support member 100, which is not easily deformed, thereby reducing the possibility of wrinkle deformation in the trace area 301 and the bonding area 302 and improving the service life of the display module 10.

[0131] Optionally, the clamping area 300 is used to clamp the display module when assembling the display panel 000. In this embodiment, the orthographic projection of the clamping area 300 along the first direction X is set to fall at least partially within the retractable support member 102, so that the retractable support member 102 can support and protect the clamping area 300.

[0132] In some optional embodiments, a second adhesive layer 103 is provided between the anti-wrinkle support 100 and the stretching area 001, and the anti-wrinkle support 100 is attached to the surface of the display panel 000 side of the first non-stretching area 002 through the second adhesive layer 103, and / or, a first adhesive layer 101 is provided between the telescopic support 102 and the stretching area 001, and the telescopic support 102 is attached to the surface of the stretching area 001 and at least a portion of the surface of the display panel 000 side of the first non-stretching area 002 through the first adhesive layer 101.

[0133] In these optional embodiments, the anti-wrinkle support 100 can be attached to the surface of the first non-stretched area 002 via the second adhesive layer 103 to increase the adhesion between the anti-wrinkle support 100 and the first non-stretched area 002. Optionally, the retractable support 102 can be attached to the surface of the stretched area 001 and at least a portion of the surface of the first non-stretched area 002 via the first adhesive layer 101 to increase the adhesion between the retractable support 102 and the display panel 000. Optionally, the anti-wrinkle support 100 can be attached to the surface of the first non-stretched area 002 via the second adhesive layer 103 to increase the adhesion between the anti-wrinkle support 100 and the first non-stretched area 002, and simultaneously the retractable support 102 can be attached to the surface of the stretched area 001 and at least a portion of the surface of the first non-stretched area 002 via the first adhesive layer 101 to increase the adhesion between the anti-wrinkle support 100, the retractable support 102, and the display panel 000.

[0134] Optionally, the boundary of the first adhesive layer 101 can be flush with the boundary of the retractable support 102, so that the entire surface of the retractable support 102 is bonded to the display panel 000, thereby improving the problem of edge warping of the retractable support 102.

[0135] Optionally, the second adhesive layer 103 can be flush with the boundary of the anti-wrinkle support 100 so that the entire surface of the anti-wrinkle support 100 is bonded to the display panel 000, thereby improving the problem of the anti-wrinkle support 100 falling off at the edge.

[0136] Optionally, the boundary of the retractable support 102 along the second direction Y is projected onto the display panel 000 at the junction of the clamping area 300 and the wiring area 301. That is, the retractable support 102 covers at least a portion of the clamping area 300, and the retractable support 102 is misaligned with the wiring area 301. This increases the coverage area of ​​the retractable support 102, improving its protection of the clamping area 300. Furthermore, the retractable support 102 has a low modulus of elasticity; when compressed during screen bonding, the retractable support 102 can deform along with the screen in the stretching area 001. The misalignment between the retractable support 102 and the wiring area 301 mitigates the impact of deformation on the wiring 303 within the wiring area 301.

[0137] Optionally, the anti-wrinkle support 100 has one side boundary along the second direction Y projected onto the display panel 000 at the junction of the clamping area 300 and the wiring area 301. This allows the anti-wrinkle support 100 to support the display panel 000 in the first non-stretch area 002, making the display panel 000 less prone to warping and deformation, reducing the stress on the display panel 000 side of the wiring area 301 and the display panel 000 side of the bonding area 302, and improving the service life of the display module 10.

[0138] Optionally, the anti-wrinkle support 100 is located at the edge of the display panel 000 along the other side of the second direction Y, so as to provide better support and protection for the display panel 000.

[0139] Optionally, the thickness of the first adhesive layer 101 can be set to be greater than the thickness of the second adhesive layer 103. Typically, the elastic modulus of the first adhesive layer 101 and the second adhesive layer 103 is relatively small compared to the anti-wrinkle support 100. By setting the thickness of the first adhesive layer 101 to be greater than the thickness of the second adhesive layer 103, the possibility of curling deformation of the second adhesive layer 103 during bonding and adhesion, which could lead to wrinkles in the first non-stretch area 002, can be reduced. Optionally, the thicknesses of the first adhesive layer 101 and the second adhesive layer 103 can also be set to be the same for ease of manufacturing. Optionally, the thickness relationship between the first adhesive layer 101 and the second adhesive layer 103 is not specifically limited, as long as the thickness is appropriate and meets the bonding requirements.

[0140] Optionally, the thickness of the first adhesive layer 101 is 13μm-150μm. For example, the thickness of the first adhesive layer 101 can be 13μm, 50μm, 100μm, 125μm, or 150μm. This can both improve the problem of increased panel thickness due to excessive thickness of the first adhesive layer 101 and improve the problem of poor adhesion due to insufficient thickness of the first adhesive layer 101.

[0141] Optionally, the thickness of the second adhesive layer 103 is 13μm-150μm. For example, the thickness of the second adhesive layer 103 can be 13μm, 50μm, 100μm, 125μm, or 150μm. This can both improve the problem of increased panel thickness due to excessive thickness of the second adhesive layer 103 and improve the problem of poor adhesion due to insufficient thickness of the second adhesive layer 103.

[0142] Optionally, a gap 104 exists between the first adhesive layer 101 and the second adhesive layer 103. During the bonding process, the first adhesive layer 101 is subjected to compression along the first direction X, and the first adhesive layer 101 elongates along with the stretching area 001. After bonding, the first adhesive layer 101 rebounds and generates stress, while the first non-stretching area 002 has a larger elastic modulus and is not easily deformed. The gap 104 between the first adhesive layer 101 and the second adhesive layer 103 can reduce the stress transmitted from the first adhesive layer 101 to the second adhesive layer 103, thereby reducing the possibility of wrinkling deformation in the first non-stretching area 002 and improving the service life of the display module 10.

[0143] Optionally, a retractable connecting part 105 is provided in the gap 104, which can provide sufficient support for the display panel 000 and reduce the possibility that the display panel 000 may be bent and broken at the gap 104 due to the lack of material support when the display panel 000 is picked up.

[0144] Optionally, the first adhesive layer 101 and the second adhesive layer 103 are bonded together by the connecting part 105 to reduce the risk of the first adhesive layer 101 and the second adhesive layer 103 falling off and warping at the gap 104.

[0145] Optionally, the elastic modulus of the connecting portion 105 is greater than that of the first adhesive layer 101, and / or the elastic modulus of the connecting portion 105 is greater than that of the second adhesive layer 103. For example, the relationship between the elastic modulus a of the first adhesive layer 101, the elastic modulus b of the second adhesive layer 103, and the elastic modulus c of the connecting portion 105 satisfies: a < b < c. The connecting portion 105 not only provides good support for the display panel 000, but also has good deformation capacity, which can reduce the possibility of breakage of the display panel 000.

[0146] Optionally, the materials of the first adhesive layer 101 and the retractable support 102 are materials of the same material system. Due to the principle of like dissolves like, the first adhesive layer 101 and the retractable support 102 have good bonding performance, which can improve the problem of separation of the first adhesive layer 101 and the retractable support 102 during the process or separation of the first adhesive layer 101 and the retractable support 102 during stretching.

[0147] Optionally, the material of the first adhesive layer 101 may include silicone material. Silicone material has a low elastic modulus, which gives the first adhesive layer 101 good adhesion and deformation capacity.

[0148] Optionally, the material of the second adhesive layer 103 may include acrylic material. Acrylic material has a larger elastic modulus than silicone material, which gives the second adhesive layer 103 good adhesive performance and lower cost.

[0149] Optionally, the material of the retractable support 102 may include silicone. Both the first adhesive layer 101 and the retractable support 102 are made of silicone. Due to the principle of "like dissolves like," the first adhesive layer 101 and the retractable support 102 have good bonding performance, which can improve the problem of separation between the first adhesive layer 101 and the retractable support 102 during the process or during stretching. This improves stretching reliability, and the high elongation and strong resilience can reduce the stress generated in the screen during stretching, thus improving the mechanical properties during stretching.

[0150] Optionally, the material of the retractable support 102 includes polydimethylsiloxane, which gives the retractable support 102 good support and protection capabilities and deformation capabilities, and a smaller elastic modulus compared to the anti-wrinkle support 100.

[0151] Optionally, the anti-wrinkle support 100 may be made of polyethylene terephthalate, which has a larger elastic modulus than the retractable support 102, giving the anti-wrinkle support 100 good support and protection capabilities, deformation capacity, and low cost.

[0152] Optionally, the thickness of the retractable support 102 is greater than or equal to the thickness of the anti-wrinkle support 100. Optionally, the retractable support 102 can deform with the expansion and contraction of the stretching zone 001, and its thickness can be greater than that of the anti-wrinkle support 100 to further protect the display panel 000 of the stretching zone 001. Optionally, the thickness of the retractable support 102 can be equal to the thickness of the anti-wrinkle support 100, and the retractable support 102 and the anti-wrinkle support 100 are arranged in the same layer, facilitating the manufacturing of the display module 10. Optionally, the relationship between the thicknesses of the retractable support 102 and the anti-wrinkle support 100 is not specifically limited; as long as the manufacturing requirements of the display module 10 are met, the choice can be made according to the specific process.

[0153] Optionally, the thickness of the retractable support 102 is 60μm-200μm. The thickness of the retractable support 102 can be 60μm, 100μm, 140μm, 180μm, or 200μm. This can improve the problem of the increased panel thickness caused by the excessive thickness of the retractable support 102, and also improve the problem of poor support and protection of the flexible display panel 000 due to the insufficient thickness of the retractable support 102.

[0154] Optionally, the thickness of the anti-wrinkle support 100 is 60μm-200μm. The thickness of the anti-wrinkle support 100 can be 60μm, 100μm, 140μm, 180μm, or 200μm. This can improve the problem of increased panel thickness due to excessive thickness of the anti-wrinkle support 100, and also improve the problem of poor support and protection for the flexible display panel 000 due to insufficient thickness of the anti-wrinkle support 100.

[0155] In some optional embodiments, the display module 10 further includes a flexible support layer 200 located on the side of the display panel 000 opposite to the anti-wrinkle support member 100, the flexible support layer 200 covering the side of the display panel 000 of the stretching area 001 and covering at least a portion of the side of the display panel 000 of the first non-stretching area 002.

[0156] In these optional embodiments, the orthographic projections of the stretchable region 001 and the second non-stretchable region 003 along the first direction X lie within the projection of the flexible support layer 200 along the first direction X. Optionally, the flexible support layer 200 may cover one side of the display panel 000 of the first non-stretchable region 002 to provide protection for the first non-stretchable region 002. Optionally, the flexible support layer 200 may also cover a portion of one side of the display panel 000 of the first non-stretchable region 002. For example, the flexible support layer 200 may cover the clamping region 300 and the wiring region 301, while the flexible support layer 200 does not cover the bonding region 302, thereby exposing a portion of one side of the display panel 000 of the first non-stretchable region 002, facilitating the bonding process.

[0157] Optionally, a third adhesive layer 201 is provided between the flexible support layer 200 and the stretching region 001. The flexible support layer 200 is attached to the surface of the stretching region 001 and at least a portion of the surface of the first non-stretching region 002 through the third adhesive layer 201. The third adhesive layer 201 is used to bond the display panel 000 and the flexible support layer 200.

[0158] Optionally, multiple pixel islands 004 are arranged in an array to realize the display function of the display panel 000.

[0159] Optional, such as Figure 4As shown, at least a portion of the third adhesive layer 201 is located between adjacent pixel islands 004 and covers the stretchable traces 005. Under external tensile force, the third adhesive layer 201 can deform the stretchable traces 005 through the deformation of the telescopic support member 102, thereby expanding or compressing the two-dimensional area of ​​the screen. Simultaneously, the third adhesive layer 201 also protects the stretchable traces 005. Optionally, the flexible support layer 200 and the third adhesive layer 201 have their boundaries flush in the first direction X, so that the flexible support layer 200 is fully bonded to the display panel 000, improving the problem of edge warping of the telescopic support member 102.

[0160] Optionally, the flexible support layer 200 and the retractable support member 102 have the same thickness, or the flexible support layer 200 and the anti-wrinkle support member 100 have the same thickness, or both the flexible support layer 200 and the retractable support member 102 have the same thickness and the flexible support layer 200 and the anti-wrinkle support member 100 have the same thickness. This can reduce the shear force between the film layers to a certain extent, reduce the stress on the screen body during stretching, and improve the stretching mechanical properties.

[0161] Optionally, the thickness of the third adhesive layer 201 and the first adhesive layer 101 can be equal, or the thickness of the third adhesive layer 201 and the second adhesive layer 103 can be equal, or the thickness of the third adhesive layer 201 and the first adhesive layer 101 and the thickness of the third adhesive layer 201 and the second adhesive layer 103 can be equal at the same time. This can reduce the shear force between the film layers to a certain extent, reduce the stress on the screen body during stretching, and improve the tensile mechanical properties.

[0162] Optionally, the thickness of the third adhesive layer 201 is 13μm-150μm. The thickness of the third adhesive layer 201 can be 13μm, 50μm, 100μm, 125μm, or 150μm, which can both improve the problem of increased panel thickness due to excessive thickness of the third adhesive layer 201 and the problem of poor adhesion due to insufficient thickness of the third adhesive layer 201.

[0163] Optionally, the thickness of the flexible support layer 200 is 60μm-200μm. The thickness of the flexible support layer 200 can be 60μm, 100μm, 140μm, 180μm, or 200μm. This can improve the problem of the increased panel thickness caused by the excessive thickness of the flexible support layer 200, and also improve the problem of poor support and protection of the flexible display panel 000 due to the insufficient thickness of the flexible support layer 200.

[0164] Optional, such as Figure 4As shown, during the bonding process of the display panel 000, a glass substrate 400 is attached to one side of the display panel 000. When the flexible support layer 200 is bonded to the display panel 000 via the third adhesive layer 201, the third adhesive layer 201 is located between the pixel islands 004 and bonded to the glass substrate 400 because the stretching area 001 array is provided with multiple pixel islands 004. The adhesiveness of the third adhesive layer 201 increases over time. The initial adhesive force of the third adhesive layer 201 is low. During the bonding process, after the third adhesive layer 201 is bonded to the glass substrate 400, the glass substrate 400 can be removed within a preset time.

[0165] Optionally, the material of the third adhesive layer 201 may include silicone material, which has high tensile strength, high recovery rate, and low stress generated by the display panel 000 when stretched.

[0166] Optionally, the flexible support layer 200 may be made of polydimethylsiloxane, which is the same silicone material as the third adhesive layer 201. The flexible support layer 200 and the third adhesive layer 201 have good adhesion and are not easily separated.

[0167] Optionally, the flexible support layer 200 can be made of transparent material, which can better achieve the display effect of the display panel 000.

[0168] In some alternative embodiments, such as Figure 3 As shown, the direction from the tension zone 001 to the first non-tension zone 002 is the second direction Y. The flexible support layer 200 includes a first side 203 facing the first non-tension zone 002 along the second direction Y. The first non-tension zone 002 includes a second side 204 away from the tension zone 001 along the second direction Y and a third side 205 facing the tension zone 001. The distance between the first side 203 and the second side 204 is 5mm-10mm, and / or the distance between the first side 203 and the third side 205 is at least 10mm. The second direction Y is perpendicular to the first direction X.

[0169] In these alternative embodiments, a portion of the first non-stretched region 002 is exposed to reduce the stress generated by the deformation of the flexible support layer 200 and transmitted to the first non-stretched region 002, thereby improving the problem of wrinkling deformation in the first non-stretched region 002.

[0170] Optionally, the distance between the first side 203 and the second side 204 can be 5mm, 6.5mm, 8mm, 9.5mm, or 10mm. This can improve the possibility of bending and breaking of the display panel 000 at the coverage boundary caused by insufficient coverage of the first non-stretchable area 002 by the flexible support layer 200. At the same time, it can improve the problem of wrinkles in the first non-stretchable area 002 caused by the stress generated by the flexible support layer 200 being transferred to the first non-stretchable area 002 when the display panel 000 expands and contracts due to excessive coverage of the first non-stretchable area 002 by the flexible support layer 200.

[0171] Optionally, the distance between the first side 203 and the third side 205 can be set to 10mm, 11mm, 12mm, 13mm, or 14mm. This can improve the possibility of bending and breaking of the display panel 000 at the coverage boundary caused by insufficient coverage of the first non-stretchable area 002 by the flexible support layer 200. At the same time, it can improve the problem of wrinkles in the first non-stretchable area 002 caused by the stress generated by the flexible support layer 200 being transferred to the first non-stretchable area 002 when the display panel 000 expands and contracts due to excessive coverage of the first non-stretchable area 002 by the flexible support layer 200.

[0172] Optionally, the distance between the first side 203 and the second side 204 can be set to 5mm-10mm, and the distance between the first side 203 and the third side 205 can be set to at least 10mm.

[0173] Wherein, the above-mentioned "distance from the first side 203 to the second side 204" and "distance from the first side 203 to the third side 205" are the distances between the projections of the first side 203, the second side 204 and the third side 205 along the first direction X, respectively.

[0174] In some alternative embodiments, such as Figure 3 As shown, the display panel 000 also includes a second non-stretched area 003 located on the side opposite to the first non-stretched area 002 in the stretching area 001. The stretching ratio of the second non-stretched area 003 is greater than that of the first non-stretched area 002. The display panel 000 also includes a flexible support layer 200 located on the side of the display panel 000 away from the anti-wrinkle support member 100. The flexible support layer 200 extends from the first non-stretched area 002 to the second non-stretched area 003.

[0175] In these optional embodiments, the second non-stretchable area 003 can be the upper bezel area of ​​the display panel 000, and the first non-stretchable area 002 can be the lower bezel area of ​​the display panel 000. The first non-stretchable area 002 is used for clamping, fixing, and bonding the screen during stretching; therefore, the first non-stretchable area 002 contains a large amount of metal and has a low stretching rate. The second non-stretchable area 003 does not require chip bonding and contains only a small amount of metal wire; the stretching rate of the second non-stretchable area 003 is greater than that of the first non-stretchable area 002, to meet the different stretching requirements corresponding to the different structural arrangements of the first and second non-stretchable areas 002 and 003.

[0176] Optionally, the orthographic projection of the tension zone 001 and the second non-tension zone 003 along the first direction X is located on the telescopic support 102, so that the telescopic support 102 with a lower elastic modulus and a larger deformation capacity provides overall support for the tension zone 001 and the second non-tension zone 003 with a higher stretching ratio.

[0177] An embodiment of the second aspect of this application provides a display module 10, which includes a display panel 000 and a retractable support member 102. The display panel 000 includes a stretchable region 001 and a first non-stretchable region 002 disposed on at least one side of the stretchable region 001. The stretchable region 001 includes pixel islands 004 and stretchable traces 005, with the stretchable traces 005 connecting adjacent pixel islands 004. The first non-stretchable region 002 includes a trace area 301 and a bonding area 302. The retractable support member 102 is disposed on one side of the display panel 000 in the stretchable region 001 and extends at least partially overlapping one side of the display panel 000 in the first non-stretchable region 002. The elastic modulus of the retractable support member 102 is less than the elastic modulus of the anti-wrinkle support member 100.

[0178] In the display module 10 provided in this application embodiment, the display module 10 includes a display panel 000 and a retractable support member 102. The display panel 000 includes a stretchable area 001 and a first non-stretchable area 002 disposed on at least one side of the stretchable area 001. The stretchable area 001 includes pixel islands 004 and stretchable traces 005. The pixel islands 004 are used to realize the light-emitting function of the display panel 000. The stretchable traces 005 are connected between adjacent pixel islands 004. When the stretchable area 001 of the display panel 000 is stretched, the stretchable traces 005 can be stretched accordingly. The first non-stretchable area 002 includes a trace area 301 and a bonding area 302. The first non-stretchable area 002 is mainly used to clamp the screen body and bond the chip during stretching. The retractable support member 102 is disposed on one side of the display panel 000 in the stretchable area 001 and extends at least partially to overlap with one side of the display panel 000 in the first non-stretchable area 002. When the screen body is pressed by the bonding roller 006, the retractable support 102 can deform with the screen body in the stretching area 001, so that no wrinkles will be generated after bonding, and the stretching area 001 is protected and supported.

[0179] In some alternative embodiments, the display panel 000 further includes an anti-wrinkle support 100, which is attached to one side of the display panel 000 in the first non-stretched region 002.

[0180] In these alternative embodiments, the support strength of the anti-wrinkle support 100 can be used to reduce the possibility of wrinkle deformation in the first non-stretched area 002, reduce the impact of stress on the display panel 000 side of the wiring area 301 and the display panel 000 side of the bonding area 302, and improve the service life of the display module 10.

[0181] Optionally, the difference between the elastic modulus of the retractable support 102 and the elastic modulus of the anti-wrinkle support 100 is 180 MPa to 6960 MPa. The difference between the elastic modulus of the retractable support 102 and the anti-wrinkle support 100 can be 200 MPa, 1000 MPa, 3000 MPa, 5000 MPa, or 6960 MPa. This can improve the problem of insufficient support force of the anti-wrinkle support 100 for the first non-tension zone 002 caused by an excessively small difference between the elastic modulus of the retractable support 102 and the anti-wrinkle support 100. It can also improve the problem of easy breakage of the first non-tension zone 002 corresponding to the interface between the retractable support 102 and the anti-wrinkle support 100 caused by an excessively large difference between the elastic modulus of the retractable support 102 and the anti-wrinkle support 100.

[0182] Optionally, the anti-wrinkle support 100 can be a rigid component, which makes the anti-wrinkle support 100 provide better support for the first non-stretched area 002, thereby further reducing the possibility of wrinkle deformation in the first non-stretched area 002.

[0183] In some optional embodiments, a second adhesive layer 103 is provided between the anti-wrinkle support 100 and the stretching area 001, and the anti-wrinkle support 100 is attached to the display panel 000 side surface of the first non-stretching area 002 through the second adhesive layer 103. And / or, a first adhesive layer 101 is provided between the telescopic support 102 and the stretching area 001, and the telescopic support 102 is attached to at least a portion of the display panel 000 side surface of the stretching area 001 and the display panel 000 side surface of the first non-stretching area 002 through the first adhesive layer 101.

[0184] In these optional embodiments, the anti-wrinkle support 100 can be attached to the surface of the first non-stretched area 002 via the second adhesive layer 103 to increase the adhesion between the anti-wrinkle support 100 and the first non-stretched area 002. Optionally, the retractable support 102 can be attached to the surface of the stretched area 001 and at least a portion of the surface of the first non-stretched area 002 via the first adhesive layer 101 to increase the adhesion between the retractable support 102 and the display panel 000. Optionally, the anti-wrinkle support 100 can be attached to the surface of the first non-stretched area 002 via the second adhesive layer 103 to increase the adhesion between the anti-wrinkle support 100 and the first non-stretched area 002, and simultaneously the retractable support 102 can be attached to the surface of the stretched area 001 and at least a portion of the surface of the first non-stretched area 002 via the first adhesive layer 101 to increase the adhesion between the anti-wrinkle support 100, the retractable support 102, and the display panel 000.

[0185] Optionally, the first non-stretchable area 002 includes a clamping area 300, a wiring area 301, and a bonding area 302 arranged sequentially along a direction away from the stretchable area 001. Optionally, the wiring area 301 includes wiring 303, which can be metal wiring 303, and the bonding area 302 includes pads 304. The wiring area 301 is a concentrated area of ​​metal lines, and the bonding area 302 is provided with pads 304. Therefore, the wiring area 301 and the bonding area 302 have high elastic modulus and thin thickness, and the metal wiring 303 is easily subjected to stress compression, which can cause display defects. Therefore, the orthogonal projection of the wiring area 301 and the bonding area 302 along the first direction X can be arranged to fall within the anti-wrinkle support 100, which can reduce the stress transmitted to the anti-wrinkle support 100 by the retractable support 102 after the display panel 000 is bonded. This reduces the possibility of wrinkling deformation in the wiring area 301 and the bonding area, and improves the service life of the display module 10. The clamping area 300 is used to clamp the display panel 000 during assembly, and the clamping area 300 has fewer wiring 303. Therefore, the orthographic projection of the clamping area 300 along the first direction X falls at least partially within the retractable support 102.

[0186] An embodiment of the third aspect of this application provides a method for manufacturing a display module 10, such as... Figure 5 As shown, it includes:

[0187] Step S100: As Figure 6 As shown, the anti-wrinkle support 100 with the second adhesive layer 103 is bonded to one side of the process film 402 on the surface opposite to the second adhesive layer 103.

[0188] Step S200: As Figure 6 As shown, the retractable support 102 with the first adhesive layer 101 is bonded to one side of the process membrane 402 on the surface opposite to the first adhesive layer 101.

[0189] Step S300: As Figure 7 As shown, the surfaces of the first adhesive layer 101 and the second adhesive layer 103 facing away from the process film 402 are pressed and attached to the side of the display panel 000.

[0190] The surfaces of the first adhesive layer 101 and the second adhesive layer 103 facing away from the process film 402 are placed on one side of the display panel 000. The anti-wrinkle support 100 is attached to the surface of the display panel 000 on one side of the first non-stretched area 002. A pressing force is applied so that the anti-wrinkle support 100 and the retractable support 102 are attached to the display panel 000 through the second adhesive layer 103 and the first adhesive layer 101, respectively.

[0191] Step S400: As Figure 8 As shown, membrane 402 is removed during the process.

[0192] In the manufacturing method of the display module 10 provided in this application embodiment, the anti-wrinkle support member 100 of the rigid component is bonded to the process film 402 in step S100, the telescopic support member 102 is bonded to the process film 402 in step S200, and the first adhesive layer 101 and the second adhesive layer 103 are pressed and attached to the display panel 000 in step S300. Finally, the process film 402 is removed in step S400. In the display module 10 manufactured by the manufacturing method of the display module 10 provided in this application embodiment, the telescopic support member 102 has a low elastic modulus. When the screen body is pressed by the bonding roller 006, the telescopic support member 102 can deform with the screen body in the stretching area 001. After bonding, no wrinkles will be generated, and the stretching area 001 is protected and supported. The support strength of the anti-wrinkle support 100 can reduce the possibility of wrinkle deformation in the first non-stretch area 002, reduce the impact of stress on the display panel 000 side of the wiring area 301 and the display panel 000 side of the bonding area 302, and improve the service life of the display module 10.

[0193] Optionally, the order of steps S100 and S200 is not required and depends on the specific preparation process.

[0194] Optionally, the anti-wrinkle support 100 and the second adhesive layer 103 are supplied as a single piece. Optionally, the telescopic support 102 and the first adhesive layer 101 are also supplied as a single piece.

[0195] In some alternative embodiments, both the first adhesive layer 101 and the retractable support 102 are made of silicone.

[0196] In these alternative embodiments, due to the principle of like dissolves like, the materials of the first adhesive layer 101 and the retractable support 102 both include silicone materials, which can improve the bonding performance of the first adhesive layer 101 and the retractable support 102, and improve the problem of separation of the first adhesive layer 101 and the retractable support 102 during the process or during stretching.

[0197] In some alternative embodiments, in step S200, such as Figure 9 As shown, it also includes step S210: as Figure 8 As shown, there is a gap 104 between the retractable support 102 and the anti-wrinkle support 100.

[0198] In these optional embodiments, during the bonding process, the retractable support 102 is compressed along the first direction X. After bonding, the retractable support 102 rebounds and generates stress. There is a gap 104 between the retractable support 102 and the anti-wrinkle support 100, and the orthographic projection of the gap 104 in the first direction X is located in the first non-stretched area 002. This can reduce the stress transmitted from the retractable support 102 to the anti-wrinkle support 100, thereby reducing the possibility of wrinkle deformation in the first non-stretched area 002 and improving the service life of the display module 10.

[0199] In some alternative embodiments, in step S300, such as Figure 10 As shown, it also includes step S310: as Figure 11 As shown, the retractable support 102 and the anti-wrinkle support 100 are pressed sequentially using the fitting roller 006.

[0200] In these alternative embodiments, the display panel 000 is placed in the bonding tool 007, and the retractable support 102 and the anti-wrinkle support 100 are pressed by the bonding roller 006 in step S310 to enhance the adhesion between the retractable support 102 and the anti-wrinkle support 100 and the display panel 000.

[0201] In some optional embodiments, an adhesive membrane 401 is provided on one side of the process membrane 402, as in step S100, such as Figure 12 As shown, it also includes step S110: as Figure 6 As shown, the anti-wrinkle support 100 is bonded to the surface of the adhesive film 401 opposite to the surface of the process film 402.

[0202] Step S200 also includes step S211: as follows Figure 6 As shown, the surface of the retractable support 102 facing away from the first adhesive layer 101 is bonded to the surface of the adhesive film 401 facing away from the process film 402.

[0203] Step S400 also includes step S410: as follows Figure 8 As shown, the process membrane 402 and the adhesive membrane 401 are removed.

[0204] In these optional embodiments, the anti-wrinkle support 100 is bonded to the process film 402 via the adhesive film 401 in step S110, and the stretchable support 102 is bonded to the process film 402 via the adhesive film 401 in step S211. The process film 402 and the adhesive film 401 are removed in step S410.

[0205] In some alternative embodiments, such as Figure 13 As shown, the procedure before step S300 also includes:

[0206] Step S311: As Figure 14 and Figure 15 As shown, the protective film 403 on the display panel 000, which has a glass substrate 400 on the first side and a protective film 403 on the second side, is removed.

[0207] Step S312: As Figure 16 As shown, a flexible support layer 200 is bonded to the second side of the display panel 000 using a third adhesive layer 201. The material of the third adhesive layer 201 includes silicone. At least a portion of the third adhesive layer 201 is located between adjacent pixel islands 004, covers the stretchable traces 005, and is bonded to the glass substrate 400. Optionally, the third adhesive layer 201 and the third support portion are supplied as a single unit.

[0208] Step S313: As Figure 17 As shown, the glass substrate 400 is scanned with a laser within a preset time to remove the glass substrate 400.

[0209] In these optional embodiments, after removing the protective film 403 in step S311, the third support portion is bonded to the second side of the display panel 000 via the third adhesive layer 201 in step S312. The glass substrate 400 is removed in step S313. Since the material of the third adhesive layer 201 includes silicone, and silicone has low initial adhesion, removing the glass substrate 400 within a preset time can improve the problem of the third adhesive layer 201 bonding with the glass substrate 400, preventing the glass substrate 400 from being removed.

[0210] Optionally, the preset time can be less than or equal to 3 hours to improve the problem that the third adhesive layer 201 and the glass substrate 400 are bonded together due to an excessively long preset time, making it difficult to remove the glass substrate 400.

[0211] Optionally, the laser wavelength can be 343nm, which can effectively remove the glass substrate without damaging the display panel.

[0212] In some alternative embodiments, such as Figure 18 As shown, after step S400, step S411 is further included: applying a connecting portion 105 between the retractable support 102 and the anti-wrinkle support 100 and between the first adhesive layer 101 and the second adhesive layer 103, so that the retractable support 102 and the anti-wrinkle support 100 are bonded together through the connecting portion 105, and the first adhesive layer 101 and the second adhesive layer 103 are bonded together through the connecting portion 105.

[0213] In these alternative embodiments, such as Figure 8As shown, by coating the connecting part 105 in the gap 104 in step S411, sufficient support can be provided for the display panel 000, reducing the possibility that the display panel 000 may be bent and broken at the gap 104 due to the lack of material support when the display panel 000 is picked up.

[0214] Optional, such as Figure 19 As shown, step S411 is followed by step S412: UV curing or heat curing of the connecting part 105.

[0215] According to an embodiment of the fourth aspect of this application, a display device is included, which includes the display module 10 as described above, or the display module 10 is manufactured using the aforementioned method for manufacturing the display module 10.

[0216] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A display module, characterized by The display module comprises: a display panel comprising a stretchable region and a first non-stretchable region arranged on at least one side of the stretchable region, the stretchable region comprising pixel islands and stretchable wires connected between adjacent pixel islands, and the first non-stretchable region comprising a wire region and a bonding region; a wrinkle-preventing support attached to one side surface of the display panel of the first non-stretchable region.

2. The display module of claim 1, wherein, The display module further comprises a stretchable support arranged on one side of the display panel of the stretchable region. Preferably, the stretchable support extends at least to a portion overlapping the one side of the display panel of the first non-stretchable region. Preferably, the stretchable support is made of transparent material.

3. The display module of claim 2, wherein, There is a gap between the stretchable support and the wrinkle-preventing support. Preferably, the elastic modulus of the wrinkle-preventing support ranges from 200 MPa to 7000 MPa. Preferably, the wrinkle-preventing support is a rigid support. Preferably, the gap is provided with a stretchable connecting portion. Preferably, the stretchable support and the wrinkle-preventing support are bonded by the connecting portion. Preferably, the connecting portion is at least one of acrylic material, silicone, and epoxy glue. Preferably, the thickness of the connecting portion along a first direction is 70 μm to 350 μm. Preferably, the width of the connecting portion along a second direction is 100 μm to 300 μm.

4. The display module of claim 2, wherein, The area of the display panel in the orthographic projection along the first direction of the wrinkle-preventing support is greater than or equal to 65% of the area of the first non-stretchable region. Preferably, the two sides of the wrinkle-preventing support along the second direction are attached to the first non-stretchable region, and the attached areas of the two sides of the wrinkle-preventing support along the second direction are equal to 65% to 100% of the area of the first non-stretchable region. Preferably, the display panel further comprises a clamping region between the stretchable region and the first non-stretchable region, the orthographic projection of the wire region and the bonding region along a first direction falls within the wrinkle-preventing support, and the orthographic projection of the clamping region along the first direction at least partially falls within the stretchable support. Preferably, the wire region comprises the wires, and the bonding region comprises pads.

5. The display module of claim 2, wherein, The wrinkle-preventing support and the stretchable support are provided with a second adhesive layer and a first adhesive layer, respectively, and the wrinkle-preventing support is attached to one side of the display panel of the first non-stretchable region through the second adhesive layer, and / or the stretchable support is attached to one side of the display panel of the stretchable region and at least part of the surface of one side of the display panel of the first non-stretchable region through the first adhesive layer. Preferably, the first adhesive layer is flush with the boundary of the stretchable support. Preferably, the second adhesive layer is flush with the boundary of the wrinkle-preventing support. Preferably, the first non-stretchable region comprises, in sequence from the direction away from the stretchable region along a second direction, a clamping region, the wire region, and the bonding region, and the boundary of the stretchable support along the second direction is located at the junction of the clamping region and the wire region in the orthographic projection of the display panel. Preferably, one side of the wrinkle-preventing support along the second direction is bounded by the orthographic projection of the display panel at the intersection of the clamping region and the wiring region; Preferably, the other side of the wrinkle-preventing support along the second direction is bounded by the edge of the display panel; Preferably, the thickness of the first adhesive layer is greater than or equal to the thickness of the second adhesive layer; Preferably, the thickness of the first adhesive layer is 13-150 μm; Preferably, the thickness of the second adhesive layer is 13-150 μm; Preferably, there is a gap between the first adhesive layer and the second adhesive layer; Preferably, the gap is provided with a stretchable connecting portion; Preferably, the first adhesive layer and the second adhesive layer are adhered by the connecting portion; Preferably, the relationship between the elastic modulus a of the first adhesive layer, the elastic modulus b of the second adhesive layer, and the elastic modulus c of the connecting portion satisfies: a Preferably, the material of the first adhesive layer and the stretchable support is the same material system; Preferably, the material of the first adhesive layer comprises silicone material; Preferably, the material of the second adhesive layer comprises acrylic material; Preferably, the material of the stretchable support comprises silicone material; Preferably, the material of the stretchable support comprises polydimethylsiloxane; Preferably, the material of the wrinkle-preventing support comprises terephthalate glycol.

6. The display module of claim 2, wherein, Preferably, the thickness of the stretchable support is greater than or equal to the thickness of the wrinkle-preventing support; Preferably, the thickness of the stretchable support is 60-200 μm; Preferably, the thickness of the wrinkle-preventing support is 60-200 μm.

7. The display module of claim 2, wherein, The display module further comprises a flexible support layer on the side of the display panel away from the wrinkle-preventing support, the flexible support layer covering the stretching region and extending to the side of the display panel of the first non-stretching region; Preferably, the wiring region and the flexible support layer at least partially overlap along the first direction; Preferably, a third adhesive layer is provided between the flexible support layer and the stretching region, and the flexible support layer is attached to at least part of the surface of the side of the display panel of the stretching region and the side of the display panel of the first non-stretching region through the third adhesive layer; Preferably, a plurality of pixel islands are arranged in an array; Preferably, at least part of the third adhesive layer is located between the adjacent pixel islands and covers the stretchable wiring; preferably, the boundary of the flexible support layer and the third adhesive layer in the first direction is flush; Preferably, the thickness of the flexible support layer and the stretchable support is equal, and / or the thickness of the flexible support layer and the wrinkle-preventing support is equal; Preferably, the thickness of the third adhesive layer and the first adhesive layer is equal, and / or the thickness of the third adhesive layer and the second adhesive layer is equal; Preferably, the thickness of the third adhesive layer is 13-150 μm; Preferably, the thickness of the flexible support layer is 60-200 μm; Preferably, the adhesion of the material of the flexible support layer after bonding increases over time; Preferably, the material of the third adhesive layer comprises silicone material; Preferably, the material of the flexible support layer comprises polydimethylsiloxane; Preferably, the flexible support layer is transparent.

8. The display module of claim 7, wherein, The direction from the stretch region to the first non-stretch region is a second direction, the flexible support layer comprises a first side surface facing the first non-stretch region along the second direction, the first non-stretch region comprises a second side surface facing away from the stretch region and a third side surface facing the stretch region along the second direction, the distance between the first side surface and the second side surface is 5mm-10mm, and / or the distance between the first side surface and the third side surface is at least 10mm, wherein the first direction is the thickness direction of the display panel, and the second direction is perpendicular to the first direction.

9. The display module of claim 1, wherein, The display panel further comprises a second non-stretch region on the side of the stretch region opposite to the first non-stretch region, the stretch ratio of the second non-stretch region is greater than that of the first non-stretch region, and the display module further comprises a flexible support layer on the side of the display panel away from the wrinkle-resistant support, the flexible support layer extends from the first non-stretch region to the second non-stretch region. Preferably, the display module further comprises a stretchable support, the stretchable support is arranged on the side of the display panel of the stretch region, and the stretch region and the second non-stretch region are located in the stretchable support in the orthographic projection along the first direction.

10. A display module, characterized by Comprise: A display panel comprising a stretch region and a first non-stretch region arranged on at least one side of the stretch region, the stretch region comprising pixel islands and stretchable wires, the stretchable wires being connected between adjacent pixel islands, and the first non-stretch region comprising a wire region and a bonding region; A wrinkle-resistant support attached to the stretchable support on the side of the display panel of the first non-stretch region, arranged on the side of the display panel of the stretch region and at least partially extending to overlap at least partially with the side of the display panel of the first non-stretch region; The elastic modulus of the stretchable support is less than the elastic modulus of the wrinkle-resistant support.

11. The display module of claim 10, wherein, The difference between the elastic modulus of the stretchable support and the elastic modulus of the wrinkle-resistant support is 180MPa-6960MPa. Preferably, the wrinkle-resistant support is a rigid support.

12. The display module of claim 10, wherein, The second adhesive layer is arranged between the wrinkle-resistant support and the stretch region, and the wrinkle-resistant support is attached to the surface of the side of the display panel of the first non-stretch region through the second adhesive layer; and / or the first adhesive layer is arranged between the stretchable support and the side of the display panel of the stretch region, and the stretchable support is attached to the surface of the side of the display panel of the stretch region and at least part of the surface of the side of the display panel of the first non-stretch region through the first adhesive layer.

13. A manufacturing method of a display module, characterized by comprising: Comprise: Attaching the surface of the wrinkle-resistant support with the second adhesive layer away from the second adhesive layer to one side of the process film; Attaching the surface of the stretchable support with the first adhesive layer away from the first adhesive layer to one side of the process film; The first adhesive layer and the second adhesive layer are attached to one side of the display panel with surfaces facing away from the process film, and the anti-wrinkle support is attached to the surface of the one side of the display panel in the first non-stretching area; An extrusion force is applied to attach the anti-wrinkle support and the stretchable support to the display panel through the second adhesive layer and the first adhesive layer respectively; The process film is removed.

14. The method of claim 13, wherein the display module is a liquid crystal display module. The first adhesive layer and the stretchable support are both made of silicone material.

15. The method of claim 13, wherein the display module is a liquid crystal display module. In the step of attaching the surface of the stretchable support facing away from the first adhesive layer to one side of the process film, a gap is formed between the stretchable support and the anti-wrinkle support.

16. The method of claim 13, wherein the display module is a liquid crystal display module. In the step of attaching the first adhesive layer and the second adhesive layer to one side of the display panel with surfaces facing away from the process film, the stretchable support and the anti-wrinkle support are extruded in sequence using a laminating roller.

17. The method of claim 13, wherein the display module is a liquid crystal display module. One side of the process film is provided with an adhesive film, and in the step of attaching the surface of the anti-wrinkle support facing away from the second adhesive layer to one side of the process film, the surface of the anti-wrinkle support facing away from the second adhesive layer is attached to the surface of the adhesive film facing away from the process film; In the step of attaching the surface of the stretchable support facing away from the first adhesive layer to one side of the process film, the surface of the stretchable support facing away from the first adhesive layer is attached to the surface of the adhesive film facing away from the process film; In the step of removing the process film to form the display module, the process film and the adhesive film are removed.

18. The method of claim 13, wherein the display module is a liquid crystal display module. Before the step of attaching the surface of the stretchable support facing away from the first adhesive layer to one side of the process film with the first adhesive layer, The protective film on the display panel with a glass substrate on one side and a protective film on the other side is removed; A third support part is attached to the second side of the display panel using a third adhesive layer, the material of the third adhesive layer includes silicone material, at least part of the third adhesive layer is located between the adjacent pixel islands and covers the stretchable wiring and is attached to the glass substrate; The glass substrate is removed by laser scanning within a preset time; Preferably, the preset time is less than or equal to 3 hours.

19. The method of claim 13, wherein the display module is a liquid crystal display module. After the step of removing the process film, the following steps are further included: A connecting part is coated between the stretchable support and the anti-wrinkle support and between the first adhesive layer and the second adhesive layer, so that the stretchable support and the anti-wrinkle support are attached through the connecting part, and the first adhesive layer and the second adhesive layer are attached through the connecting part; Preferably, after the step of coating a connecting part between the stretchable support and the anti-wrinkle support and between the first adhesive layer and the second adhesive layer, so that the stretchable support and the anti-wrinkle support are attached through the connecting part, and the first adhesive layer and the second adhesive layer are attached through the connecting part, the following step is further included: ultraviolet curing or heat curing the connecting part.

20. A display device comprising: The display module comprises the display module as claimed in any one of claims 1-9, or the display module manufactured by the manufacturing method as claimed in any one of claims 13-19.

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