Display module, manufacturing method thereof and display device

Abstract

The invention discloses a display module, a manufacturing method thereof and a display device. The display module comprises a display panel, the display panel is provided with a first curved surface, the first curved surface is provided with a first area and a second area surrounding the periphery of the first area, and the display module further comprises an adhesion layer located on at least part of the second area; the flexible material layer is connected with the first curved surface through an adhesion layer, a cavity is formed between the flexible material layer and the first curved surface, and the surface of the side, away from the first curved surface, of the flexible material layer is provided with a plane area; and the supporting material is filled in the cavity. The manufacturing method comprises the steps of providing a display panel with a first curved surface; arranging an adhesive layer on a second area of the first curved surface; connecting the flexible material layer through the adhesion layer to form a cavity; a thermosetting resin is injected and cured as a support material. The invention further relates to a display device comprising the display module. The problem that the reliability of a device is reduced due to the fact that an attached object is prone to layering in the attaching process of the curved-surface display module is solved.

Description

Technical Field

[0001] This application relates to the field of display technologies, and in particular, to a display module, a manufacturing method thereof, and a display device. Background Art

[0002] Organic Light Emitting Diode (OLED) display technology has advantages such as being thin, light, and self-luminous. Therefore, OLEDs are widely used in consumer electronics fields such as wearable devices.

[0003] Flexible OLED, due to its bendable characteristics, is widely applicable to curved display products in wearable display devices. During the process of attaching a curved display module, wrinkles often occur when the flexible material is attached. Since the rigid material is not bendable, the area of adhesion to the spherical display panel is small, resulting in the rigid material often detaching from the curved display panel, thereby reducing the reliability of the device. Summary of the Invention

[0004] This application provides a display module, a manufacturing method thereof, and a display device to solve the problem in the related art that in the process of attaching a curved display module, the attached object is prone to delamination, resulting in a reduction in the reliability of the device.

[0005] According to one aspect of this application, a display module is provided, including a display panel. The display panel has a first curved surface, and the first curved surface has a first region and a second region surrounding the outer periphery of the first region. The display module further includes: an adhesion layer located on at least a part of the second region; a flexible material layer connected to the first curved surface through the adhesion layer, and a cavity is formed between the flexible material layer and the first curved surface. The surface of the flexible material layer facing away from the first curved surface has a planar region; a support material filled in the cavity.

[0006] According to another aspect of this application, a manufacturing method of a display module is provided, including the following steps:

[0007] S1. Provide a display panel, the display panel has a first curved surface, and the curved surface has a first region and a second region surrounding the outer periphery of the first region;

[0008] S2. Set an adhesion layer on the surface of the first curved surface so that the adhesion layer is located on at least a part of the second region;

[0009] S3. Connect the flexible material layer to the first curved surface through the adhesion layer so that a cavity is formed between the flexible material layer and the first curved surface;

[0010] S4. Fill the cavity with a support material so that the surface of the flexible material layer facing away from the first curved surface has a planar region.

[0011] According to another aspect of the present application, a display device is provided, including the above-mentioned display module.

[0012] The present application provides a display module, including a display panel, an adhesive layer, a flexible material layer, and a cavity. The flexible material layer is adhered to a partial first curved surface of the display panel through the adhesive layer, and a cavity is formed in the unadhered area. The cavity makes the side of the flexible material facing away from the first curved surface have a planar area. The cavity is filled with a support material to further support the flexible material, making it difficult for the flexible material to generate wrinkles. Then, after attaching materials such as a circuit board and a rigid chip to the above-mentioned planar area, the flat flexible material ensures the contact area when attaching the circuit board and the rigid chip, etc., and ensures the adhesion force between the flexible material and the circuit board and the rigid chip, etc., effectively avoiding the reduction of device reliability caused by delamination after the components are attached to the flexible material, thus solving the problem of reduced device reliability caused by easy delamination of the adherends in the curved display module attachment process in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0014] Figure 1 is a schematic partial cross-sectional structure diagram of a display module provided by an embodiment of the present application;

[0015] Figure 2 is a schematic partial cross-sectional structure diagram of another display module provided by an embodiment of the present application;

[0016] Figure 3 is a schematic partial cross-sectional structure diagram of still another display module provided by an embodiment of the present application;

[0017] Figure 4 is a schematic partial top view structure diagram of a display module provided by an embodiment of the present application;

[0018] Figure 5 is a schematic partial top view structure diagram of another display module provided by an embodiment of the present application;

[0019] Figure 6 is a schematic partial cross-sectional structure diagram of a display module provided by an embodiment of the present application with an induction module and a flexible circuit board added;

[0020] Figure 7 is a schematic partial cross-sectional structure diagram of a display module provided by an embodiment of the present application with a flexible optical film layer added;

[0021] Figure 8It is a schematic flowchart of a method for manufacturing a display module provided by an embodiment of the present application;

[0022] Figure 9 It is a schematic flowchart of an operation step for filling a support material into a cavity provided by an embodiment of the present application;

[0023] Figure 10 It is a schematic flowchart of a method for manufacturing a display panel provided by an embodiment of the present application;

[0024] Figure 11 It is a schematic flowchart of another method for manufacturing a display module provided by an embodiment of the present application;

[0025] Figure 12 It is a schematic structural diagram of a display device provided by an embodiment of the present application.

[0026] Among them, the above-mentioned drawings include the following reference numerals:

[0027] 1. Display device; 2. Non-display area; 3. Display area; 10. Display panel; 11. First curved surface; 12. Second curved surface; 20. Adhesion layer; 30. Flexible material layer; 31. First surface; 32. Second surface; 40. Cavity; 50. Support layer; 61. Feed hole; 62. Exhaust hole; 70. Induction module; 80. Flexible circuit board; 90. Flexible optical film layer; 91. Lens layer; 910. Third curved surface; 92. Polarizer layer. Detailed implementation manners

[0028] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0029] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0030] It should be noted that the terms "first", "second", etc. in the description, claims and the above drawings of this application are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances for the embodiments of the application described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily limit to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0031] As described in the background art, during the process of attaching a flexible material to a curved display module, the flexible material is prone to wrinkles, and the rigid material attached to the flexible material cannot be bent, and there are easily pores between the two, resulting in poor adhesion, and then the rigid material is easily detached from the curved display panel, causing a decrease in the reliability of the device. To solve the above problems, this application provides a display module, a manufacturing method thereof, and a display device.

[0032] According to an embodiment of the present application, as Figure 1 shown, a display module is provided, including a display panel 10, an adhesive layer 20, a flexible material layer 30, and a support material. Among them, the display panel 10 has a first curved surface 11, the first curved surface 11 has a first region and a second region surrounding the outer periphery of the first region; the adhesive layer 20 is located on at least part of the second region; the flexible material layer 30 is connected to the first curved surface 11 through the adhesive layer 20, and a cavity 40 is formed between the flexible material layer 30 and the first curved surface 11. The surface of the flexible material layer 30 facing away from the first curved surface 11 has a planar region; the support material is filled in the cavity 40.

[0033] Through the display module in the above embodiment, as Figure 1 shown, the flexible material layer 30 is attached between the first curved surface 11 of the display panel 10 through the adhesive layer 20 in the second region. Since the adhesive layer 20 is at least located on part of the second region, a gap is formed between the first region of the first curved surface 11 of the display panel 10 and the second region not covered by the adhesive layer 20 and the flexible material layer 30, and then the cavity 40 is formed. The cavity 40 is filled with a support material to support the flexible material layer 30, so that the surface of the flexible material layer 30 facing away from the first curved surface 11 has a planar region. This planar region ensures that subsequent materials such as circuit boards and rigid chips are closely attached to this planar region, avoiding the generation of gaps, effectively preventing delamination after attachment and reducing the reliability of the device, improving the overall stability and durability of the display module, and solving the problem of reduced device reliability caused by easy delamination of the adherends during the bonding process of the curved display module in the related art.

[0034] The above is the core idea of this application. Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application.

[0035] In the display module in the embodiments of this application, the support material includes a cured product formed from a thermosetting resin. The support material formed after the thermosetting resin is cured has high hardness and stability, can effectively support the flexible material layer, and enables a flat area to be maintained on the surface of the side of the flexible material layer facing away from the first curved surface, avoiding deformation during use, thereby ensuring the structural integrity and display effect of the display module.

[0036] Specifically, the thermosetting resin includes, but is not limited to, any one or more of epoxy resin, acrylate resin, polyurethane resin, and UV-curable resin, and those skilled in the art can select materials according to actual needs.

[0037] In some alternative embodiments, the minimum curing temperature of the thermosetting resin is less than or equal to 50 °C. The lower curing temperature can avoid thermal damage to other components in the display module, resulting in a decline in the performance of the display panel, ensure the performance and lifespan of the display panel, reduce energy consumption during the production process, and improve production efficiency.

[0038] In some alternative embodiments, the material of the flexible material layer includes foamed plastic particles. The foamed plastic particles have characteristics such as light weight, heat insulation, and sound insulation, can effectively reduce the weight of the display module, and at the same time provide good heat insulation and sound insulation effects, improving the portability and use comfort of the display module.

[0039] In some alternative embodiments, the plastic particles are selected from any one or more of polyethylene (PE), polypropylene (PP), and polystyrene (PS), but are not limited to the above types. Using plastic particles with a relatively large hardness can support the flexible support layer and avoid breakage during the adhesion process; while using plastic particles with a relatively small hardness can effectively reduce the weight of the display module and is less likely to break when subjected to external forces. Those skilled in the art should select appropriate plastic particles according to specific actual needs.

[0040] In some alternative embodiments, as Figure 2 shown, the display module further includes a support layer 50, and the support layer 50 is located on the side of the flexible material layer 30 close to the curved surface; as Figure 3As shown, the display module further includes a support layer 50, which is located on the side of the flexible material layer 30 away from the curved surface, and the hardness of the support layer 50 is greater than that of the flexible material layer 30. As Figure 2 and Figure 3 shown, the setting of the support layer 50 can further enhance the structural stability of the display module. Especially in the curved surface part of the display panel 10, it not only plays a supporting role for the flexible support layer 50 to prevent the flexible support layer 50 from deforming, but also can effectively prevent deformation caused by external forces, improving the impact resistance of the display module. Figure 2 and Figure 3 Also shown are the adhesion layer 20 and the cavity 40. For the description of the adhesion layer 20 and the cavity 40, refer to the description in the above embodiments, and details will not be elaborated here.

[0041] In some alternative embodiments, as Figure 1 shown, the surface of the flexible material layer 30 having a planar region is the first surface 31, and at least part of the planar region is located at the edge of the first surface 31. This design enables the display module to have a planar structure in the edge region, facilitating the connection and fixation with edge components, including rigid chips starting from the edge, such as NFC, etc. The planar structure in the edge region increases the attachment area of the edge components, thereby improving the assembly efficiency and structural integrity of the display module.

[0042] In some alternative embodiments, as Figure 1 shown, the first surface 31 is planar. Then the first surface 31 is an integral plane. The integral planar first surface 31 improves the flatness with subsequent adhesion components compared to the first surface 31 with a partial plane, thereby improving the reliability of adhesion between the first surface 31 and subsequent adhesion components. The above design not only facilitates the connection with other components but also provides a better touch operation experience, avoiding the problem of inaccurate touch caused by the curved surface design.

[0043] In some alternative embodiments, as Figure 1 shown, the surface of the flexible material layer 30 close to the first curved surface 11 is the second surface 32, and the second surface 32 is planar. The second surface 32 is also planar, ensuring the flatness and uniformity of the support material filling, which is beneficial to ensuring the flatness of the first surface 31 after the support material is injected, and further ensuring the reliability of adhesion of other components.

[0044] In some alternative embodiments, as Figure 1 and Figure 4As shown, the adhesive layer 20 is disposed around the edge of the first curved surface 11. The adhesive layer 20 disposed around can provide uniform adhesion, ensure the tight connection between the flexible material layer 30 and the display panel 10, and avoid the problem of structural looseness or damage caused by insufficient local adhesion. The adhesive layer 20 disposed around makes the shape of the edge of the cavity 40 between the first surface 31 and the flexible material layer 30 on the flexible material layer 30 the same as the edge shape of the display panel 10. The consistency of the edge shape ensures the uniformity of the injection of the supporting material, and then ensures the flatness of the first plane, avoids the gap generated when the first surface 31 is adhered to other components, and improves the structural stability and reliability of the display module.

[0045] Specifically, the material of the adhesive layer can be selected from one or more of acrylic adhesive, silicone adhesive, PET (polyethylene terephthalate), PE (polyethylene) base tape, PVC (polyvinyl chloride) base tape, and foam tape, but is not limited to the above types. Those skilled in the art can make a reasonable selection based on the existing technology.

[0046] In some optional embodiments, such as Figure 1 and Figure 5 As shown, the flexible material layer 30 has a feed hole 61 and an exhaust hole 62. The provision of the feed hole 61 and the exhaust hole 62 can achieve accurate filling of the supporting material, avoid bubbles or uneven filling problems during the filling process, ensure that the first surface 31 is flat, thereby avoiding gaps generated when the first surface 31 is adhered to other components, and improving the structural integrity and display effect of the display module. Figure 5 The display panel 10 , the adhesive layer 20 , and the cavity 40 are also shown. For the description of the display panel 10 , the adhesive layer 20 , and the cavity 40 , reference is made to the description in the above embodiment, and they will not be repeated here.

[0047] In some optional embodiments, such as Figure 6 As shown, the display module also includes a sensing module 70 and a flexible circuit board 80. The sensing module 70 contacts the plane area, and the flexible circuit board 80 is located on the side of the sensing module 70 away from the plane area. The setting of the sensing module 70 and the flexible circuit board 80 can realize the touch function of the display module, and improve the interactivity and user experience of the display device. Among them, the sensing module 70 includes but is not limited to modules such as NFC. Figure 6 The display panel 10, the adhesive layer 20, the non-flexible material layer 30 and the cavity 40 are also shown. For the description of the display panel 10, the adhesive layer 20, the non-flexible material layer 30 and the cavity 40, refer to the description in the above embodiment and will not be repeated here.

[0048] In some optional embodiments, such as Figure 7As shown, the display module further includes a lens layer 91 located on the light-emitting side of the display panel 10. The lens layer 91 has a third curved surface 910, and both the third curved surface 910 and the first curved surface 11 are recessed toward the light-emitting side of the display panel 10. The setting of the lens layer 91 can improve the light-emitting effect of the display panel 10, enhance the clarity of the image, reduce the distortion at the edge of the image, increase the contrast ratio, improve the color saturation, increase the viewing angle range of the display module, and improve the display quality and visual effect of the display module.

[0049] In some alternative embodiments, as Figure 7 shown, the display panel 10 has a second curved surface 12 opposite to the first curved surface 11. The second curved surface 12 protrudes toward the light-emitting side of the display panel 10. The flexible optical film layer 90 includes a lens layer 91 and a polarizing layer 92. The lens layer 91 has a third curved surface 910, and the polarizing layer 92 is located between the third curved surface 910 and the second curved surface 12. The polarizing layer 92 can absorb some of the light in the natural light incident from the outside, improving the readability and contrast ratio of the display screen. At the same time, it increases the contrast ratio and color saturation of the display module, providing a more vivid display effect. Figure 7 The display panel 10, the adhesive layer 20, the non-flexible material layer 30, the cavity 40, the sensing module 70, and the flexible circuit board 80 are also shown. For the description of the above structures, reference is made to the description in the above embodiments, and details are not repeated here.

[0050] According to another aspect of the present application, a method for manufacturing a display module is provided, as Figure 8 shown, including the following steps:

[0051] S1. Provide a display panel. The display panel has a first curved surface, and the curved surface has a first region and a second region surrounding the outer periphery of the first region;

[0052] S2. Set an adhesive layer on the surface of the first curved surface so that the adhesive layer is located on at least part of the second region;

[0053] S3. Connect the flexible material layer to the first curved surface through the adhesive layer so that a cavity is formed between the flexible material layer and the first curved surface;

[0054] S4. Fill the cavity with a support material so that the surface of the flexible material layer facing away from the first curved surface has a planar region.

[0055] Through the above embodiments, the structure as Figure 1For the display module shown, a cavity 40 is formed between the flexible material layer 30 and the first curved surface 11 of the display panel 10 through the adhesive layer 20. The cavity 40 is filled with a support material, so that the surface of the side of the flexible material layer 30 facing away from the first curved surface 11 has a planar area. After attaching materials such as a circuit board and a rigid chip to the planar area, the flexible circuit board and the rigid chip can be closely attached to the planar area, avoiding the generation of voids, effectively preventing delamination after attachment and reducing the reliability of the device, improving the overall stability and durability of the display module, and solving the problem in the related art that in the bonding process of a curved display module, the bonded material is prone to delamination, resulting in a reduction in the reliability of the device.

[0056] Exemplary embodiments of the method for manufacturing a display module according to the present invention will be described in more detail below. However, these exemplary embodiments can be implemented in many different forms and should not be construed as being limited only to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concept of these exemplary embodiments to those of ordinary skill in the art.

[0057] First, step S1 is performed: providing a display panel, the display panel having a first curved surface, the curved surface having a first region and a second region surrounding the outer periphery of the first region.

[0058] Specifically, the types of display panels include, but are not limited to, curved LCD panels, curved OLED panels, curved AMOLED panels, curved quantum dot display panels, curved Micro LED panels, etc. Those skilled in the art select a suitable panel according to the actual situation.

[0059] After providing the display panel, step S2 is performed: disposing an adhesive layer on the surface of the first curved surface so that the adhesive layer is located on at least a part of the second region.

[0060] The purpose of making the adhesive layer located on at least a part of the second region is to cause the flexible material layer adhered to the first surface to adhere to a part of the first surface, generating voids.

[0061] Specifically, the materials of the adhesive layer include, but are not limited to, acrylic adhesive, silicone adhesive, PET (polyethylene terephthalate), PE (polyethylene) substrate tape, PVC (polyvinyl chloride) substrate tape, foam tape, etc. Those skilled in the art select a suitable adhesive layer material according to actual needs.

[0062] After disposing the adhesive layer on the surface of the first curved surface, step S3 is performed: connecting the flexible material layer to the first curved surface through the adhesive layer so that a cavity is formed between the flexible material layer and the first curved surface.

[0063] A cavity is formed between the flexible material and the first curved surface. Since the shape of the flexible material is variable, wrinkles are likely to occur after it completely adheres to the curved surface, resulting in gaps between the subsequently adhered rigid components and the flexible material, causing the components to separate. By adhering a part of the flexible material to the curved surface to form a cavity with the curved surface, it can be ensured that the adhered part of the flexible material is flat, and this part of the flexible material will not wrinkle, ensuring the reliability of the adhesion of the subsequent rigid components adhered to this part of the flat flexible material.

[0064] Specifically, the material of the flexible material layer may include foamed plastic particles. Exemplarily, the plastic particles are selected from any one or more of polyethylene (PE), polypropylene (PP), and polystyrene (PS).

[0065] After forming a cavity between the flexible material layer and the first curved surface, step S4 is performed: filling the cavity with a support material so that the surface of the flexible material layer facing away from the first curved surface has a flat area.

[0066] For an unfilled cavity, since the shape of the flexible material forming the cavity is variable, it is likely to deform after experiencing extrusion, vibration, etc., causing separation from the components subsequently adhered to the flexible material. Filling the cavity with a support material to support the flexible material and keep it in a flat state ensures the reliability of the subsequent adhesion of the rigid components.

[0067] The display module obtained through the above steps is as Figure 1 shown, including: a display panel 10, an adhesive layer 20, a flexible material layer 30, and a support material. Among them, the display panel 10 and the flexible material are partially bonded through the adhesive layer 20 to form a cavity 40, and the support material is filled in the cavity 40.

[0068] In some alternative embodiments, as Figure 9 shown, the flexible material layer has a feed hole 61 and an exhaust hole 62, and its structure is as Figure 5 shown. The step of filling the cavity with the support material includes:

[0069] S401. Inject a thermosetting resin into the cavity through the feed hole;

[0070] S402. Cure the thermosetting resin to form a support material.

[0071] This precise filling method can avoid problems such as air bubbles or uneven filling during the filling process, improving the structural integrity and display effect of the display module.

[0072] Specifically, the thermosetting resin includes, but is not limited to, any one or more of epoxy resin, acrylate resin, polyurethane resin, and UV curing resin. Those skilled in the art may select the material according to actual needs.

[0073] In some optional embodiments, the thermosetting resin is cured at a temperature of 40 to 50° C. A lower curing temperature can avoid thermal damage to other components in the display module, resulting in degradation of the display panel performance, thereby ensuring the performance and life of the display panel, while reducing energy consumption in the production process and improving production efficiency.

[0074] In some optional embodiments, such as Figure 10 As shown, the step of providing a display panel includes:

[0075] S101, disposing a polarizing layer on the light-emitting side of the display panel;

[0076] S102, providing a lens layer having a third curved surface, and bonding a polarizing layer to the third curved surface using optical adhesive, so that the display panel is located on a side of the polarizing layer away from the third curved surface, and a surface of the display panel away from the polarizing layer forms a first curved surface, and both the first curved surface and the third curved surface are recessed toward a light emitting side of the display panel.

[0077] In a curved display device, the lens layer can optimize light distribution according to the shape of the curve, reduce edge distortion, improve the brightness and contrast of the display device, help expand the effective viewing angle range, and maintain consistent image quality when viewed from different angles.

[0078] Laminating the polarizing layer to the third curved surface can not only improve the light emitting effect of the display panel, but also effectively filter stray light, improve the contrast and color saturation of the display module, provide a more realistic display effect, and reduce the thickness and weight of the device.

[0079] In some optional embodiments, such as Figure 11 As shown, after the step of filling the cavity with the support material, the above-mentioned manufacturing method in the embodiment of the present application further includes:

[0080] S5. Place the sensing module in contact with the plane area, and place the flexible circuit board on a side of the sensing module away from the plane area.

[0081] The display module obtained through the above steps is as follows Figure 5 and Figure 7 As shown, it includes: a lens layer 91 arranged along a first direction, a polarizing layer 92, a display panel 10, an adhesive layer 20, a cavity 40, a flexible material layer 30, a sensing module 70, a flexible circuit board 80, and also includes a feed hole 61 and an exhaust hole 62 arranged on the flexible material layer 30.

[0082] According to another aspect of the present application, a display device is provided, such as Figure 12 shown, the display device 1, a display panel, and a display module including the above-mentioned one connected to the display panel. Among them, the provided display panel has a display area 3 and a non-display area 2.

[0083] Specifically, the above-mentioned display device can be an electronic device such as a mobile phone, a computer, and a television, and the above-mentioned display panel can be applied to all of them. Materials such as a circuit board and a rigid chip are closely attached to the flexible material layer, and the support material is injected between the display panel and the flexible material layer to provide support for the flexible material, avoiding the generation of wrinkles in the flexible material, effectively preventing delamination after attachment and reducing the reliability of the device, and improving the structural stability and display effect of the display device.

[0084] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0085] 1) In the present application, a cavity is formed between the display panel and the flexible material layer, and the cavity is filled with a support material to support the flexible material layer, so that the surface of the side of the flexible material layer facing away from the first curved surface has a flat area, ensuring that subsequent materials such as a circuit board and a rigid chip are closely attached to this flat area, avoiding the generation of gaps between the circuit board, the rigid chip, etc. and the flexible material, effectively preventing delamination after attachment and reducing the reliability of the device, improving the overall stability and durability of the display module, and solving the problem in the related art that in the bonding process of a curved display module, the bonded material is prone to delamination and the reliability of the device is reduced.

[0086] 2) The present application can also optimize the design of the support structure. By providing a support layer to further support the flexible material layer, the deformation of the flexible material layer is greatly reduced, avoiding the generation of gaps between the subsequent adhered circuit board, rigid chip, etc. and the flexible material layer due to wrinkles in the flexible material layer, thereby improving the reliability of the device.

[0087] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, commodity or device including the element.

[0088] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A display module, characterized in that, Comprising a display panel, the display panel having a first curved surface, the first curved surface having a first region and a second region surrounding the outer periphery of the first region, the display module further comprising: An adhesion layer located on at least a part of the second region; A flexible material layer connected to the first curved surface through the adhesion layer, and a cavity is formed between the flexible material layer and the first curved surface, and a flat region is provided on a surface of the flexible material layer facing away from the first curved surface; A support material filled in the cavity.

2. The display module according to claim 1, wherein The support material includes a cured product formed of a thermosetting resin.

3. The display module according to claim 2, wherein The minimum curing temperature of the thermosetting resin is less than or equal to 50 °C.

4. The display module according to claim 1, wherein The material of the flexible material layer includes foamed plastic particles.

5. The display module according to claim 4, wherein The plastic particles are selected from any one or more of polyethylene, polypropylene and polystyrene.

6. The display module according to claim 4, wherein The display module further includes a support layer, the support layer is located on one side of the flexible material layer close to or away from the curved surface, and the hardness of the support layer is greater than that of the flexible material layer.

7. The display module according to any one of claims 1 to 6, characterized in that, The surface of the flexible material layer having the flat region is the first surface, and at least a part of the flat region is located at the edge of the first surface.

8. The display module according to claim 7, wherein The first surface is flat.

9. The display module according to claim 8, wherein A surface of the flexible material layer close to the first curved surface is the second surface, and the second surface is flat.

10. The display module according to any one of claims 1 to 6, characterized in that, The adhesion layer is disposed around the edge of the first curved surface.

11. The display module according to any one of claims 1 to 6, characterized in that, The flexible material layer has a feed hole and an exhaust hole.

12. The display module according to any one of claims 1 to 6, characterized in that The display module further includes a sensing module and a flexible circuit board, the sensing module is in contact with the flat region, and the flexible circuit board is located on a side of the sensing module away from the flat region.

13. The display module according to any one of claims 1 to 6, characterized in that The display module further includes a lens layer on the light-emitting side of the display panel, the lens layer having a third curved surface, and both the third curved surface and the first curved surface are recessed toward the light-emitting side of the display panel.

14. The display module according to claim 13, characterized in that, The display panel has a second curved surface opposite to the first curved surface, the second curved surface protrudes toward the light-emitting side of the display panel, the flexible optical film layer includes a lens layer and a polarizing layer, the lens layer has a third curved surface, and the polarizing layer is located between the third curved surface and the second curved surface.

15. A manufacturing method of a display module, characterized in that, Including the following steps: Providing a display panel, the display panel having a first curved surface, the curved surface having a first region and a second region surrounding the outer periphery of the first region; Providing an adhesion layer on the surface of the first curved surface so that the adhesion layer is located on at least a part of the second region; Connecting a flexible material layer to the first curved surface through the adhesion layer so that a cavity is formed between the flexible material layer and the first curved surface; Filling a support material into the cavity so that a flat region is provided on a surface of the flexible material layer facing away from the first curved surface.

16. The manufacturing method according to claim 15, characterized in that, The flexible material layer has a feed hole and an exhaust hole, and the step of filling the support material into the cavity includes: Injecting a thermosetting resin into the cavity through the feed hole; Curing the thermosetting resin to form the support material.

17. The manufacturing method according to claim 16, characterized in that, Curing the thermosetting resin at a temperature of 40 to 50 °C.

18. The manufacturing method according to claim 16, characterized in that, The step of providing the display panel includes: Providing a polarizing layer on the light-emitting side of the display panel; A lens layer with a third curved surface is provided, and the polarizing layer is bonded to the third curved surface by an optical adhesive, so that the display panel is located on a side of the polarizing layer away from the third curved surface, and a first curved surface is formed on a surface of the display panel away from the polarizing layer, and both the first curved surface and the third curved surface are recessed toward the light-emitting side of the display panel.

19. The manufacturing method according to claim 16, characterized in that, After the step of filling the support material into the cavity, the manufacturing method further includes: The sensing module is arranged in contact with the planar region, and the flexible circuit board is arranged on a side of the sensing module away from the planar region.

20. A display device, comprising a display module, characterized in that, The display module is the display module according to any one of claims 1 to 14, or the display module is prepared by the manufacturing method of the display module according to any one of claims 15 to 19.

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