Display module, preparation method of display module and display device

Abstract

The display module, the preparation method of the display module and the display device provided by the embodiments of the present application include a display panel, a support assembly and a filling assembly. The display panel has a bending area, a first area and a second area connected to two ends of the bending area, and the first area and the second area are oppositely arranged along the thickness direction of the display module. The support assembly is located between the first area and the second area, and the support assembly and the bending area are spaced apart to form a first gap between the support assembly and the bending area. The filling assembly is used to fill at least the first gap. The filling assembly includes a first adhesive and a second adhesive, the first adhesive is bonded to the bending area and is spaced apart from the support assembly, and the second adhesive is filled between the first adhesive and the support assembly. The elastic modulus of the second adhesive is smaller than that of the first adhesive, thereby reducing the problem of line cracks caused by the deformation of the metal traces on the side of the bending area, and thus realizing the synergistic compatibility of the impact resistance and the extrusion resistance of the display module.

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] With the advancement of technology, digital display panels for smartphones, tablets, and other devices are widely used, with the display screen serving as an indispensable human-computer interaction interface. OLED (Organic Light Emitting Diode) display panels, for example, offer advantages such as self-illumination, energy efficiency, flexibility, and bendability. Furthermore, these display modules do not require a backlight, boasting fast response times and excellent display quality, attracting significant user attention and leading to their widespread adoption in smartphones, tablets, and other terminal products. However, current display modules cannot adequately meet the diverse needs of users.

[0003] However, the existing display modules are difficult to reconcile in terms of compression resistance and impact resistance. Summary of the Invention

[0004] This application provides a display module, a method for preparing the display module, and a display device, aiming to simultaneously improve the extrusion resistance and impact resistance of the display module.

[0005] An embodiment of the first aspect of this application provides a display module, comprising: a display panel having a bending region, a first region and a second region connected to both ends of the bending region and disposed opposite to each other along the thickness direction of the display module; a support component located between the first region and the second region, wherein the support component and the bending region are spaced apart to form a first gap between the support component and the bending region; and a filling component located in the first gap, the filling component comprising a first colloid and a second colloid, wherein the first colloid is bonded to the bending region and spaced apart from the support component, and the second colloid is filled between the first colloid and the support component; wherein the elastic modulus of the second colloid is less than the elastic modulus of the first colloid.

[0006] The second aspect of this application also provides a method for manufacturing a display module, including: A first back film and a second back film are prepared on one side of a display panel. The display panel has a bending area and a first area and a second area spaced apart along a first direction. The bending area connects the first area and the second area. The first back film is disposed in the first area, and the second back film is disposed in the second area. A support assembly is prepared on the side of the first back film that faces away from the display panel; A first colloid is prepared between the first back film and the second back film; The area to be bent is bent to form the display module. After the area to be bent is completed, the bending area is formed. The first back film and the second back film are arranged opposite to each other along the thickness direction of the display module. The support component is located between the first back film and the second back film. The first colloid and the support component surround to form a second gap. A second colloid is prepared within the second gap, the elastic modulus of the second colloid being less than that of the first colloid, and the first colloid and the second colloid are combined to form a filling component.

[0007] The third aspect of this application also provides a display device, including a display module prepared by the method of preparing the display module of any of the first aspects of the above-described embodiments or the display module of any of the second aspects of the above-described embodiments.

[0008] In the display module provided in this application embodiment, the display module includes a display panel, a support component, and a filling component. The display panel is used to realize the display function of the display module. The display panel has a bending area and a first area and a second area connected to both ends of the bending area. The bending area is used to bend the display panel. After the display panel is bent through the bending area, the first area and the second area are arranged opposite to each other along the thickness direction of the display module. The support component is used to provide support and protection for the display panel. The support component is located between the first area and the second area, and the support component and the bending area are spaced apart to form a first gap between the support component and the bending area, thereby reducing the deformation of the support component when bending the bending area is transmitted to the screen body, which would cause deformation of the metal traces in the screen body and lead to circuit cracks. The first gap can reduce the bending difficulty of the display module and also provide space for the filling component. The filling component is used to fill the first gap at least to support and protect the display surface of the bending area. The filling component includes a first adhesive and a second adhesive. The first adhesive is bonded to the bending area and spaced apart from the support component, and the second adhesive is filled between the first adhesive and the support component. By setting the elastic modulus of the second colloid to be lower than that of the first colloid, the first colloid, with its higher elastic modulus, can maintain sufficient structural strength to support the bending area, reducing the risk of deformation and cracking of the metal traces around the bending area, thus preventing display anomalies. The second colloid, with its lower elastic modulus, is located between the first colloid and the support component. This allows it to absorb and disperse impact stress when the display module is subjected to external pressure, achieving a synergistic compatibility between impact resistance and compression resistance in the display module. Attached Figure Description

[0009] 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.

[0010] Figure 1 This is a schematic diagram of the structure of a display module provided in this application; Figure 2 yes Figure 1 A cross-sectional view at BB in one embodiment; Figure 3 yes Figure 1 A cross-sectional view at BB in another embodiment; Figure 4 yes Figure 1 A cross-sectional view at BB in yet another embodiment; Figure 5 yes Figure 1 A cross-sectional view at BB in another embodiment; Figure 6 This is a flowchart of the manufacturing process of a display module provided in this application; Figure 7 This is a process diagram of the fabrication of a display module provided in this application; Figure 8 This is a flowchart of the manufacturing process of another display module provided in this application; Figure 9 This is a process diagram of another display module provided in this application.

[0011] Figure label: 10. Display module; 100. Display panel; 200, Support component; 210, Sublayer; 220, Buffer layer; 230, Metal layer; 240, Adhesive layer; 250, Support layer; 300, Filler component; 310, First colloid; 320, Second colloid; 330, Third colloid; 331, First sub-component; 332, Second sub-component; 400. First backsheet; 410. Second backsheet; 500, cover plate; 600, Adhesive layer; A, Zone 1; B, Zone 2; C, Bending Zone; C', Zone to be Bent; K, First Gap; H, Second Gap; Detailed Implementation

[0012] 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.

[0013] 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.

[0014] 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.

[0015] In the prior art, low injection pressure overmolding potting technology is used to fill the inner and outer sides of the bending area of ​​the display module with glue. This potting technology is a screen encapsulation technology that encapsulates and protects the screen cable by injecting a high molecular liquid colloid in a vacuum environment.

[0016] However, if the adhesive is too hard, the deformation of the adhesive on the outside of the bending area will be transmitted to the screen body when under stress, causing deformation of the metal traces inside the screen and resulting in circuit cracks and display abnormalities. If the adhesive is too soft, the inside of the bending area cannot effectively support the bending area of ​​the screen body, resulting in poor resistance to deformation, which in turn causes deformation of the metal traces inside the screen and results in circuit cracks and display abnormalities. Therefore, the compression resistance and impact resistance of existing display modules are difficult to reconcile.

[0017] To address the aforementioned problems, embodiments of this application provide a display module, a method for manufacturing the same, and a display device. For a better understanding of this application, the following description is provided in conjunction with… Figures 1 to 9 The display module, its manufacturing method, and display device according to the embodiments of this application will be described in detail.

[0018] Figure 1 This is a schematic diagram of the structure of a display module 10 provided in this application. Figure 1 This is a schematic diagram of the structure of a display module provided in this application. Figure 2 yes Figure 1 A cross-sectional view at BB in one embodiment.

[0019] like Figure 1 and Figure 2 As shown, the display module 10 provided in this embodiment includes a display panel 100, a support component 200, and a filling component 300. The display panel 100 has a bending region C, a first region A, and a second region B connected to both ends of the bending region C and disposed opposite to each other along the thickness direction of the display module 10. The support component 200 is located between the first region A and the second region B, and the support component 200 and the bending region C are spaced apart to form a first gap K between the support component 200 and the bending region C. The filling component 300 is located in the first gap K and includes a first colloid 310 and a second colloid 320. The first colloid 310 is bonded to the bending region C and spaced apart from the support component 200, and the second colloid 320 fills the space between the first colloid 310 and the support component 200. The elastic modulus of the second colloid 320 is less than that of the first colloid 310.

[0020] In the display module 10 provided in this embodiment, the display module 10 includes a display panel 100, a support component 200, and a filling component 300. The display panel 100 is used to realize the display function of the display module 10. The display panel 100 has a bending region C and a first region A and a second region B connected to the two ends of the bending region C. The bending region C is used to bend the display panel 100. After the display panel 100 is bent through the bending region C, the first region A and the second region B are arranged opposite to each other along the thickness direction of the display module 10.

[0021] The first area A and the second area B of the display panel 100 may be provided with multiple pixel units to realize double-sided display or curved display of the display module 10; alternatively, the first area A of the display panel 100 may be provided with multiple pixel units, while the second area B may be used to bond integrated chips, circuit boards, etc. of the display module 10 to realize a narrow bezel of the flexible display module 10. For ease of understanding, this application embodiment uses the example of the first area A of the display panel 100 being provided with multiple pixel units, while the second area B is used for bonding.

[0022] The support component 200 provides support and protection for the display panel 100. The support component 200 is located between the first area A and the second area B, and is spaced apart from the bending area C to form a first gap K. This reduces the deformation of the support component 200 transmitted to the screen body during bending of the bending area C, thus preventing deformation of the metal traces within the screen and potential cracking. The first gap K reduces the difficulty of bending the display module 10 and also provides space for the filling component 300.

[0023] The filling component 300 is used at least to fill the first gap K to support and protect the display surface of the bending area C. The filling component 300 includes a first adhesive 310 and a second adhesive 320. The first adhesive 310 is bonded to the bending area C and spaced apart from the support component 200. The second adhesive 320 fills the space between the first adhesive 310 and the support component 200. In this embodiment, by setting the elastic modulus of the second adhesive 320 to be smaller than that of the first adhesive 310, the first adhesive 310, with its larger elastic modulus, can maintain sufficient structural strength to support the bending area C, thereby reducing the problem of circuit cracks and display abnormalities caused by deformation of the metal traces inside the bending area C. The second colloid 320, with a lower elastic modulus, is located between the first colloid 310 and the support component 200. This allows the second colloid 320, with its lower elastic modulus, to absorb and disperse impact stress when the display module 10 is subjected to external pressure. This reduces the risk of deformation and cracking of the metal traces inside the bending area C, thus preventing display abnormalities. Consequently, the display module 10 achieves a synergistic compatibility between its compression resistance and impact resistance. Optionally, the thickness of the bending area C can be the same as the thickness of the first area A and the second area B, facilitating the fabrication of the display panel 100. Alternatively, the thickness of the bending area C can be less than that of the first area A and the second area B, facilitating bending of the bending area C.

[0024] Optionally, the surface of the bending zone C facing the first colloid can be an arc surface.

[0025] Optionally, the first colloid 310 includes a main body and an extension connected to each other. The surface of the main body located on the side of the extension near the bending area C can be curved, so that the bending area C and the first colloid 310 can fit better, thereby reducing the support strength of the first colloid 310 on the bending area C and reducing the problem of wrinkles in the bending area C.

[0026] Optionally, the extension is located between the main body and the second colloid 320. The side surface of the extension facing the second colloid 320 is recessed towards the first colloid 310, so that it can be interlocked with the second colloid 320 to improve stability.

[0027] Optionally, the second colloid 320 is provided to protrude towards the first colloid 310 on the side facing the first colloid 310, so that it can be interlocked with the extension of the first colloid 310 to improve stability.

[0028] In some optional embodiments, the display module 10 further includes a first back film 400 and a second back film 410, the first back film 400 being disposed on the side of the first region A facing the second region B, the second back film 410 being disposed on the side of the second region B facing the first region A, a support assembly 200 being disposed between the first back film 400 and the second back film 410, and a first colloid 310 being connected to the first back film 400 and the second back film 410.

[0029] In these optional embodiments, the first back film 400 provides support and protection for the first area A of the display panel 100, and the second back film 410 provides support and protection for the second area B of the display panel 100. The support component 200 is disposed between the first back film 400 and the second back film 410, making the bending area C easy to bend. The first colloid 310 is connected to the first back film 400 and the second back film 410, which can provide support and cushioning for the bending area C, improving the compression resistance and impact resistance of the display module 10.

[0030] Optionally, the material of the first backsheet 400 may include at least one of polyimide and polyethylene terephthalate, the latter having good support properties.

[0031] Optionally, the material of the second back film 410 may include at least one of polyimide and polyethylene terephthalate, which have good support properties.

[0032] Optionally, the materials of the first back film 400 and the second back film 410 can be the same, which facilitates the preparation of the first back film 400 and the second back film 410.

[0033] Optionally, the first back film 400 may be located on the side of the first area A facing the second area B, and the second back film 410 may be located on the side of the second area B facing the first area A, so as to provide good support and protection for the display panel 100.

[0034] In some alternative embodiments, the first back film 400 and the second back film 410 are convex toward the bending region C relative to the support assembly 200, and a portion of the first colloid 310 extends between the first back film 400 and the second back film 410.

[0035] In these alternative embodiments, the first back film 400 and the second back film 410 are arranged to protrude toward the bending region C relative to the support assembly 200 to provide a receiving space for accommodating the first colloid 310, so that a portion of the first colloid 310 can extend between the first back film 400 and the second back film 410, reducing the possibility of the first colloid 310 separating from the first back film 400 and the second back film 410, and further improving the support strength for the bending region C.

[0036] In some alternative embodiments, the first colloid 310 covers the first back film 400 for a maximum length of 0.05 mm ± 0.05 mm in the direction in which the support component 200 and the bending area C are spaced apart.

[0037] In these optional embodiments, the maximum length of the first colloid 310 covering the first back film 400 is 0.05 mm ± 0.05 mm. For example, the maximum length of the first colloid 310 covering the first back film 400 can be 0.01 mm, 0.03 mm, 0.05 mm, 0.07 mm, or 0.1 mm. This can reduce the capillary action caused by the first colloid 310 contacting the support component 200 due to the excessive maximum length of the first colloid 310 covering the first back film 400, which would lead to the overflow of the first colloid 310. It can also improve the problem that the first colloid 310 is easy to separate from the first back film 400 due to the excessive maximum length of the first colloid 310 covering the first back film 400, which would affect the stability of the display module 10.

[0038] In some alternative embodiments, in the direction in which the support component 200 and the bending area C are spaced apart, the maximum length of the first colloid 310 covering the second back film 410 is 0.05 ± 0.05 mm. For example, the maximum length of the first colloid 310 covering the second back film 410 can be 0.01 mm, 0.03 mm, 0.05 mm, 0.07 mm, or 0.1 mm. This can reduce the capillary action caused by the first colloid 310 contacting the support component 200 due to an excessively large maximum length of the first colloid 310 covering the second back film 410, which would lead to the overflow of the first colloid 310. It can also improve the problem that the first colloid 310 is easy to separate from the second back film 410 due to an excessively small maximum length of the first colloid 310 covering the second back film 410, which would affect the stability of the display module 10.

[0039] Please see Figure 3 , Figure 3 yes Figure 1 A cross-sectional view at BB in another embodiment.

[0040] In some alternative embodiments, the support component 200 includes a plurality of sub-layers 210 stacked along the thickness direction of the display module 10, the plurality of sub-layers 210 including a buffer layer 220, and the second colloid 320 at least covers the sidewall of the buffer layer 220 facing the first colloid 310.

[0041] In these optional embodiments, the support component 200 includes a buffer layer 220, which provides support and cushioning for the first region A and the second region B and dissipates heat. The second colloid 320 at least covers the sidewall of the buffer layer 220 facing the first colloid 310, so that the second colloid 320 can block the first colloid 310, reducing the possibility that the first colloid 310 will come into contact with the buffer layer 220 and thus undergo a capillary reaction and penetrate into the buffer layer 220. This allows the first colloid 310 to better fill the space between the second colloid 320 and the bending region C, improving the cushioning performance.

[0042] Optionally, the material of the buffer layer 220 may include at least one of polyimide and polyethylene terephthalate, which have good buffering and heat dissipation properties.

[0043] Please see Figure 4 , Figure 4 yes Figure 1 A cross-sectional view at BB in yet another embodiment.

[0044] Optionally, the multiple sub-layers 210 may also include an adhesive layer 240 located on the side of the buffer layer 220 facing the first region A, and the adhesive layer 240 is used to bond the support assembly 200 to the first region A.

[0045] Optionally, sublayer 210 may also include metal layer 230, which may be located on the side of buffer layer 220 away from adhesive layer 240. Metal layer 230 can achieve electromagnetic shielding while further improving heat dissipation.

[0046] Optionally, a support layer 250 is provided on the side of the adhesive layer 240 opposite to the buffer layer 220, the support layer giving the display module 10 a suitable thickness.

[0047] Optionally, the material of the metal layer 230 may include at least one of copper, aluminum, silver, copper alloy, aluminum alloy, silver alloy, and graphene, wherein the above materials have good thermal conductivity and high electrical conductivity.

[0048] Please see Figure 5 , Figure 5 yes Figure 1 A cross-sectional view at BB in another embodiment.

[0049] In some alternative embodiments, the filling component 300 further includes a third colloid 330, at least a portion of which is located on the side of the bending region C opposite to the first colloid 310, wherein at least a portion of the third colloid 330 has an elastic modulus less than that of the first colloid 310.

[0050] In these optional embodiments, at least a portion of the third colloid 330 is located on the side of the bending region C opposite to the first colloid 310. This can be understood as at least a portion of the third colloid 330 being located outside the bending region C, providing further support and protection to the side of the bending region C opposite to the first colloid 310. The elastic modulus of at least a portion of the third colloid 330 is less than that of the first colloid 310, allowing the first colloid 310 with its smaller elastic modulus to maintain sufficient structural strength to support and protect the bending region C. This reduces the risk of deformation and cracking of the metal traces outside the bending region C when the display module 10 is subjected to impact, thus preventing display abnormalities.

[0051] In some alternative embodiments, the display module 10 further includes a cover plate 500 disposed on the side of the first region A opposite to the second region B, and at least a portion of the third colloid 330 is attached to the cover plate 500.

[0052] In these alternative embodiments, at least a portion of the third colloid 330 is attached to the cover plate 500, thereby bonding the display module 10 to the cover plate 500 and improving the stability between the display module 10 and the cover plate 500.

[0053] In some alternative embodiments, the third colloid 330 has a first sub-part 331 and a second sub-part 332 connected together. The first sub-part 331 is located on the side of the second region B opposite to the first region A. The second sub-part 332 covers the bending region C and part of the first region A and is connected to the cover plate 500. The elastic modulus of the first sub-part 331 is greater than that of the second sub-part 332, and the elastic modulus of the first sub-part 331 is less than that of the first colloid 310.

[0054] In these optional embodiments, the first sub-part 331 is located on the side of the second region B opposite to the first region A, and the first sub-part 331 is made of a high elastic modulus material to ensure the rigidity of the colloid and provide better flatness. The second sub-part 332 covers the bending region C and part of the first region A, and the second sub-part 332 is connected to the cover plate 500. That is, the second sub-part 332 is disposed on the side of the display module 10 to achieve a sealed encapsulation of the side of the display module 10.

[0055] In some alternative embodiments, the display module 10 further includes an adhesive layer 600 located between the third colloid 330 and the display panel 100.

[0056] In these alternative embodiments, the adhesive layer 600 can further reduce the stress on the bending area C of the display module 10, reduce the possibility of cracks in the display module 10, protect the display module 10, and improve the connection stability between the third colloid 330 and the display panel 100.

[0057] In some alternative embodiments, the elastic modulus of the adhesive layer 600 is less than that of the third colloid 330.

[0058] In these optional embodiments, the elastic modulus of the third colloid 330 is less than that of the third colloid 330, so that the adhesive layer 600 with a smaller elastic modulus is located on the side of the third colloid 330 closer to the display module 10. This allows the adhesive layer 600 with a lower elastic modulus to absorb and disperse impact stress when the display module 10 is subjected to external pressure, reducing the deformation of the metal traces outside the bending area C, which can cause line cracks and display abnormalities. This achieves a synergistic compatibility between the anti-compression effect and the anti-impact effect of the display module 10.

[0059] In some alternative embodiments, the third colloid 330 and the second colloid 320 are made of the same material.

[0060] In these alternative embodiments, the third colloid 330 and the second colloid 320 are made of the same material, which allows the third colloid 330 and the second colloid 320 to be prepared in the same process, thereby saving process steps.

[0061] In some alternative embodiments, the material of the first colloid 310 includes a transparent material, and the material of the second colloid 320 includes a photosensitive material.

[0062] In these alternative embodiments, the material of the second colloid 320 may include a photosensitive material to facilitate the preparation of the second colloid 320, and the material of the first colloid 310 may include a transparent material, thereby reducing the occlusion of light by the first colloid 310 during the preparation of the second colloid 320 and improving the preparation efficiency of the second colloid 320.

[0063] Optionally, the materials of the first colloid 310 and the second colloid 320 are not specifically limited, as long as the first colloid 310 and the second colloid 320 cannot be fused together and react.

[0064] Please refer to the following: Figures 6 to 7 , Figure 6 This is a flowchart of the manufacturing process of a display module provided in this application. Figure 7 This is a process diagram of the manufacturing of a display module provided in this application.

[0065] A second aspect of this application provides a method for manufacturing a display module 10, comprising: Step S100: A first back film 400 and a second back film 410 are prepared on one side of the display panel 100. The display panel 100 has a bending area C' and a first area A and a second area B that are spaced apart along a first direction. The bending area C' connects the first area A and the second area B. The first back film 400 is disposed in the first area A and the second back film 410 is disposed in the second area B.

[0066] Step S200: Prepare a support component 200 on the side of the first back film 400 that is away from the display panel 100.

[0067] Step S300: Prepare a first colloid 310 between the first back film 400 and the second back film 410.

[0068] Step S400: The bending area C' is bent to form the display module 10. After the bending area C' is completed, the bending area C is formed. The first back film 400 and the second back film 410 are arranged opposite each other along the thickness direction of the display module 10. The support component 200 is located between the first back film 400 and the second back film 410. The first colloid 310 and the support component 200 surround each other to form the second gap H.

[0069] Step S500: A second colloid 320 is prepared in the second gap H. The elastic modulus of the second colloid 320 is less than that of the first colloid 310. The first colloid 310 and the second colloid 320 are combined to form a filling component 300.

[0070] In the method for manufacturing a display module 10 provided in the second aspect of this application, a first back film 400 and a second back film 410 are prepared on one side of the display panel 100 in step S100, and a support component 200 is prepared in step S200. A first colloid 310 is prepared between the first back film 400 and the second back film 410 in step S300. The first colloid 310 and the support component 200 are then enclosed to form a second gap H in step S400. A second colloid 320 is prepared within the second gap H in step S500. By setting the elastic modulus of the second colloid 320 to be smaller than that of the first colloid 310, the first colloid 310 with a larger elastic modulus can maintain sufficient structural strength to support the bending area C, thereby reducing the problem of circuit cracks caused by deformation of the metal traces inside the bending area C and resulting in display abnormalities. The second colloid 320 with a smaller elastic modulus is located between the first colloid 310 and the support component 200. This allows the second colloid 320 with a lower elastic modulus to absorb and disperse impact stress when the display module 10 is subjected to external pressure. This reduces the deformation of the metal traces inside the bending area C, which can cause line cracks and display abnormalities. In this way, the display module 10 achieves synergistic compatibility between its anti-compression and anti-impact effects.

[0071] Optionally, in step S300, the first colloid 310 can be prepared by an optical adhesive bonding process, so that the first colloid 310 can be connected between the first back film 400 and the second back film 410.

[0072] Optionally, in step S500, the second colloid 320 can be prepared by low injection pressure overmolding technique.

[0073] Please refer to the following: Figures 8 to 9 , Figure 8 This is a flowchart illustrating the fabrication process of a display module according to another embodiment provided in this application. Figure 9 This is a process diagram of the manufacturing process of the display module in another embodiment provided in this application.

[0074] In some optional embodiments, step S500 further includes: Step S510: A cover plate 500 is attached to the side of the first zone A away from the second zone B, and part of the cover plate 500 extends out of the bending zone C along the first direction.

[0075] Step S520: A third colloid 330 is prepared in the bending area C of the display panel 100 along the first direction away from the first colloid 310. At least a portion of the third colloid 330 is disposed between the display panel 100 and the cover plate 500. The elastic modulus of the third colloid 330 is less than that of the first colloid 310.

[0076] In these alternative embodiments, a cover plate 500 is attached to the side of the first region A opposite to the second region B in step S510, and a third colloid 330 is prepared in step S520. The elastic modulus of the third colloid 330 is less than that of the first colloid 310.

[0077] Optionally, in step S520, the third colloid 330 can be prepared by low injection pressure overmolding and potting technology.

[0078] The display device according to the third aspect of this application includes a display module 10 prepared by the display module 10 provided by any embodiment of the first aspect above or the display module 10 preparation method provided by any embodiment of the second aspect above.

[0079] Since the display device of the embodiment of the third aspect of this application includes the display module 10 provided in any of the first aspect embodiments or the display module 10 prepared by the method for preparing the display module 10 provided in any of the second aspect embodiments, the display device of the embodiment of the third aspect of this application has the beneficial effects of the display module 10 provided in any of the first aspect embodiments or the display module 10 prepared by the method for preparing the display module 10 provided in any of the second aspect embodiments, which will not be elaborated here.

[0080] The display device 1 in this embodiment of the invention includes, but is not limited to, mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0081] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display module, characterized in that, include: The display panel has a bending area, a first area and a second area connected to both ends of the bending area and disposed opposite to each other along the thickness direction of the display module; A support component is located between the first region and the second region, and the support component and the bending region are spaced apart to form a first gap between the support component and the bending region; A filling component is located in the first gap. The filling component includes a first colloid and a second colloid. The first colloid is bonded to the bending area and spaced apart from the support component. The second colloid fills the space between the first colloid and the support component. The elastic modulus of the second colloid is less than that of the first colloid.

2. The display module according to claim 1, characterized in that, The display module further includes a first back film and a second back film. The first back film is disposed on the side of the first region facing the second region, and the second back film is disposed on the side of the second region facing the first region. The support component is disposed between the first back film and the second back film, and the first colloid is connected to the first back film and the second back film.

3. The display module according to claim 2, characterized in that, The first back film and the second back film protrude toward the bending area relative to the support assembly, and a portion of the first colloid extends between the first back film and the second back film.

4. The display module according to claim 3, characterized in that, In the direction in which the support assembly and the bending zone are spaced apart, the maximum length of the first colloid covering the first back film and / or the second back film is 0.05±0.05mm.

5. The display module according to claim 1, characterized in that, The support component includes a plurality of sub-layers stacked along the thickness direction of the display module, the plurality of sub-layers including a buffer layer, and the second colloid at least covers the sidewall of the buffer layer facing the first colloid.

6. The display module according to claim 1, characterized in that, It also includes a third colloid, at least a portion of which is located on the side of the bending region opposite to the first colloid. Wherein, at least a portion of the elastic modulus of the third colloid is less than that of the elastic modulus of the first colloid.

7. The display module according to claim 6, characterized in that, The display module further includes a cover plate, which is disposed on the side of the first area away from the second area, and at least a portion of the third colloid is connected to the cover plate.

8. The display module according to claim 7, characterized in that, The third colloid has a first sub-part and a second sub-part connected together. The first sub-part is located on the side of the second region opposite to the first region. The second sub-part covers the bending region and part of the first region and is connected to the cover plate. Wherein, the elastic modulus of the first sub-part is greater than that of the second sub-part, and the elastic modulus of the first sub-part is less than that of the first colloid.

9. The display module according to claim 6, characterized in that, It also includes an adhesive layer located between the third colloid and the display panel.

10. The display module according to claim 9, characterized in that, The elastic modulus of the adhesive layer is less than that of the third colloid.

11. The display module according to claim 6, characterized in that, The third colloid is made of the same material as the second colloid.

12. The display module according to claim 1, characterized in that, The first colloid is made of a transparent material, and the second colloid is made of a photosensitive material.

13. A method for manufacturing a display module, characterized in that, include: A first back film and a second back film are prepared on one side of a display panel. The display panel has a bending area and a first area and a second area spaced apart along a first direction. The bending area connects the first area and the second area. The first back film is disposed in the first area, and the second back film is disposed in the second area. A support assembly is prepared on the side of the first back film that faces away from the display panel; A first colloid is prepared between the first back film and the second back film; The area to be bent is bent to form the display module. After the area to be bent is completed, the bending area is formed. The first back film and the second back film are arranged opposite to each other along the thickness direction of the display module. The support component is located between the first back film and the second back film. The first colloid and the support component surround to form a second gap. A second colloid is prepared within the second gap, the elastic modulus of the second colloid being less than that of the first colloid, and the first colloid and the second colloid are combined to form a filling component.

14. The method for preparing a display module according to claim 13, characterized in that, The step of preparing the second colloid within the second gap further includes: A cover plate is attached to the side of the first area away from the second area, and part of the cover plate extends out of the bending area along the first direction; A third colloid is prepared on the side opposite to the first colloid in the bending area of ​​the display panel along the first direction. At least a portion of the third colloid is disposed between the display panel and the cover plate. The elastic modulus of the third colloid is less than that of the first colloid.

15. A display device, characterized in that, The display module includes the display module as described in any one of claims 1-12 or the display module prepared by the method described in any one of claims 13-14.

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