Display module, assembling method thereof and display device

Abstract

The present application relates to a display module, comprising a flexible display layer and a support substrate arranged on the backlight side of the flexible display layer for supporting the flexible display layer, wherein the support substrate comprises a bending area in a bending shape or a to-be-bent area in a flexible shape and capable of being bent under external force, so that the flexible display layer can be curved along the shape of the support substrate. The present application also relates to a display device and an assembling method of the display module.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display product manufacturing, and in particular to a display module, an assembling method thereof and a display device. BACKGROUND

[0002] Flexible OLED has begun to be gradually applied to the vehicle display market due to its advantages of high contrast, fast response speed and bendable shape. In order to realize a complex and large-size shape, a main machine manufacturer usually adheres a curved cover plate by itself, that is, the OLED module needs to be shipped without a cover plate.

[0003] The current curved product adheres an OLED display layer to a cover plate, and then adheres an SCF (heat dissipation film) to the back of the OLED display layer. The SCF is a multi-layer composite material, which is generally composed of a grid glue, foam, graphite, copper foil and the like, has a certain heat dissipation capacity and is light, thin, soft and capable of corresponding to the curved adhesion. However, the strength is low, and the module cannot provide effective support and protection. The GDS and peeling quality risks caused by bumps and extrusions during the in-plant process and transportation cannot be controlled. If the thick aluminum plate design on the back of the flat module is followed, the adhesion to the curved cover plate cannot be realized. SUMMARY

[0004] In order to solve the above technical problems, the present application provides a display module, an assembling method thereof and a display device, which solve the problem that the display module cannot be shipped without a cover plate or cannot be adhered to a curved cover plate.

[0005] In order to achieve the above purpose, the technical scheme adopted by the embodiments of the present application is as follows: a display module, comprising a flexible display layer and a support substrate arranged on the backlight side of the flexible display layer and used for supporting the flexible display layer, the support substrate comprising a bending area in a bending shape or a to-be-bent area in a flexible shape and capable of being bent under external force, so that the flexible display layer can be in a curved shape according to the shape of the support substrate.

[0006] Optionally, the material of the support substrate is aluminum alloy, stainless steel or titanium alloy.

[0007] Optionally, the material of the support substrate is aluminum alloy, and the thickness of the support substrate is 0.2-0.4 mm, so that the support substrate comprises a to-be-bent area in a flexible shape and capable of being bent under external force.

[0008] Optionally, the material of the support substrate is stainless steel, and the thickness of the support substrate is 0.15-0.3 mm, so that the support substrate comprises a to-be-bent area in a flexible shape and capable of being bent under external force.

[0009] Optionally, the material of the support substrate is titanium alloy, and the thickness of the support substrate is 0.5-0.8 mm, so that the support substrate comprises a bending area in a bending shape, and the flexible display layer can be curved according to the shape of the support substrate.

[0010] Optionally, the display module further comprises a cover plate, and the curvature of the cover plate is greater than the curvature of the support substrate.

[0011] Optionally, the support substrate comprises a central area connected with the flexible display layer and an edge area located at the periphery of the central area.

[0012] The display device provided by the embodiment of the present application comprises the display module, and further comprises a frame, wherein the frame comprises a bottom plate and side plates located at the periphery of the bottom plate, and the support substrate is fixed on the bottom plate through the heat-conducting adhesive material.

[0013] The embodiment of the present application further provides an assembling method of a display module, which is used for assembling the display module, and the display module comprises a flexible display layer, a cover plate located at the light-emitting side of the flexible display layer, and a support substrate located at the backlight side of the flexible display layer.

[0014] The support substrate comprises a bending area in a bending shape, so that the flexible display layer can be curved according to the shape of the support substrate.

[0015] The assembling method comprises the following steps:

[0016] The flexible display layer is attached to the support substrate.

[0017] The flexible display layer and the support substrate are bent to form a curved shape.

[0018] The cover plate is attached to the flexible display layer in a curved shape.

[0019] The embodiment of the present application further provides an assembling method of a display module, which is used for assembling the display module, and the display module comprises a flexible display layer, a cover plate located at the light-emitting side of the flexible display layer, and a support substrate located at the backlight side of the flexible display layer.

[0020] The support substrate comprises a bending area in a bending shape, so that the flexible display layer can be curved according to the shape of the support substrate.

[0021] The assembling method comprises the following steps:

[0022] The flexible display layer is attached to the support substrate, so that the flexible display layer is curved according to the shape of the support substrate.

[0023] The cover plate is attached to the flexible display layer in a curved manner.

[0024] The present application has the advantages that: through the provision of the support substrate, the flexible display layer can be supported and protected from damage such as bumps, and the display module can be shipped without a cover plate. The support substrate can include a bending region in a bent shape or a to-be-bent region in a flexible shape that can be bent under an external force, so that the flexible display layer can be curved in a curved manner according to the shape of the support substrate, that is, the support strength is ensured while the curved surface of the display module and the curved surface of the cover plate are connected. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A schematic diagram of a display module in an embodiment of the present application Figure 1 ;

[0026] Figure 2 A schematic diagram of a display module in an embodiment of the present application Figure 2 ;

[0027] Figure 3 A schematic diagram of a display module in an embodiment of the present application Figure 3 ;

[0028] Figure 4 A schematic diagram of an assembly method flow of a display module in an embodiment of the present application Figure 1 ;

[0029] Figure 2 A schematic diagram of an assembly method flow of a display module in an embodiment of the present application Figures 1-3 . DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0031] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the ordinary meanings as understood by one of ordinary skill in the art to which the present application pertains. The terms "first", "second", and similar terms, used in the present application do not denote any order, quantity, or importance, but are used to distinguish one element from another. Also, the terms "one", "a", or "the" do not denote a quantity of particular mentioned elements, but denote the existence of at least one of the particular mentioned elements. The terms "comprising" or "including" or similar terms mean that the elements or objects preceding the terms encompass the elements or objects recited after the terms, and equivalents thereof, and do not exclude other elements or objects. The terms "connected" or "linked" or similar terms do not limit to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships can also be changed accordingly.

[0032] Reference Figure 3 The embodiment provides a display module, which comprises a flexible display layer 1 and a support substrate 2 arranged on the backlight side of the flexible display layer 1 and used for supporting the flexible display layer 1. The support substrate 2 comprises a bending area in a bending shape or a to-be-bent area in a flexible shape and capable of being bent under external force, so that the flexible display layer 1 can be in a curved shape along with the shape of the support substrate 2.

[0033] In the related art, a SCF (heat dissipation film) or a thick aluminum plate of a parallel type structure is attached to the back of the flexible display layer 1. The SCF is a multilayer composite material, which is generally composed of a grid glue, foam, graphite, copper foil, etc., has a certain heat dissipation capacity and is light, thin, soft, and capable of being attached to a curved surface, but has low strength and cannot provide effective support and protection for the module. The quality risks such as GDS and peeling caused by bumps and extrusions during the in-plant process and the transportation process cannot be controlled. If the thick aluminum plate design of the back of the flat module is followed, the thick aluminum plate has sufficient rigidity and can play a supporting and protecting role on the flexible display layer 1, but cannot be attached to the curved cover plate 3 (the thick aluminum plate cannot be bent, even if it can be bent, the bending degree is small, which leads to the failure to be attached to the curved cover plate 3).

[0034] To solve the above problems, in the embodiment, a support substrate 2 is arranged on the backlight side of the flexible display layer 1. The support substrate 2 has a certain strength relative to the SCF, can support and protect the flexible display layer 1, avoid damage such as bumping, and can realize the delivery without the cover plate 3. Relative to the thick aluminum plate, the support substrate 2 has a certain elastic modulus, can include a bending area in a bending shape or a to-be-bent area in a flexible shape and can be bent under external force, so that the flexible display layer 1 can be curved with the shape of the support substrate 2, and the curved surface and curved surface connection between the display module and the cover plate 3 can be realized. That is, the support substrate 2 has a certain softness while ensuring the supporting strength, and the curved surface and curved surface connection between the display module and the cover plate 3 can be realized.

[0035] It should be noted that the support substrate 2 can replace the SCF and the rear aluminum plate in the related art, can realize heat dissipation, can support and protect the flexible display layer 1, and can realize the curved surface and curved surface connection between the display module and the cover plate 3. Since the SCF has a certain heat dissipation capacity, is light, thin and soft, but has low strength and cannot effectively support and protect the module, in some embodiments, the support substrate 2 can be arranged on the side of the heat dissipation film away from the flexible display layer 1.

[0036] It should be noted that the bending area or the to-be-bent area can be part of the support substrate 2, or the bending area or the to-be-bent area can be the whole support substrate 2.

[0037] In the related art, due to the heat shrinkage characteristics of the polarizing plate, the module in this state is prone to curling at high temperature, cannot correspond to the Aging process of the module, and greatly affects the product quality. In the embodiment, the support substrate 2 has high heat conduction capacity, for example, the thermal conductivity of the support substrate 2 can be greater than 15 w / mk, and the thermal conductivity of the support substrate 2 can be greater than 100 w / mk, so that the problem of curling of the display layer film material due to high temperature can be avoided. The thermal conductivity of the support substrate 2 can be set according to actual needs, and is not limited thereto.

[0038] The material of the support substrate 2 can be various, but the support substrate 2 needs to have certain strength, flexibility and heat conduction capacity. The strength and thickness need to be selected to ensure that it can support the flexible display layer 1 and can avoid high-temperature curling, and the ductility and flexibility of the support substrate 2 need to support the processing of the curved surface forming of the finished product. For example, the material of the support substrate 2 is aluminum alloy, stainless steel or titanium alloy, but is not limited thereto.

[0039] Exemplarily, the material of the support substrate 2 is an aluminum alloy, and the thickness of the support substrate is 0.2-0.4 mm, so that the support substrate 2 includes a to-be-bent region in a flexible form and can be bent under external force.

[0040] The aluminum alloy has high thermal conductivity (for example, the thermal conductivity of the aluminum alloy is >100 W / mk), low hardness, and good flexibility, is suitable for products with large bending degree and high temperature rise requirement, and is very suitable for the current requirements of the OLED vehicle-mounted module.

[0041] The material of the support substrate 2 is an aluminum alloy, and according to the requirement of the bending degree, the support substrate 2 can be thinned to 0.2-0.4 mm by physical thinning, while the thickness of the thick aluminum plate in the prior art is greater than 1 mm. In comparison, the thermal conductivity is improved, the thickness is greatly reduced, and the strength of the aluminum alloy material is also relatively large. In addition to ensuring the supporting performance, the aluminum alloy material also has a certain softness, so that the flexible display layer 1 is curved along with the bending form of the support substrate 2.

[0042] In this embodiment, the related parameters of several aluminum alloys are listed, and Table 1 can be referred to for details.

[0043] Exemplarily, the material of the support substrate 2 is stainless steel, and the thickness of the support substrate 2 is 0.15-0.3 mm, so that the support substrate 2 includes a to-be-bent region in a flexible form and can be bent under external force.

[0044] The stainless steel SUS has high strength, and its advantages are high modulus and high strength (strength >1000 MPa). If the material of the support substrate 2 is not modified, the support substrate 2 can have a thinner thickness (for example, 0.15-0.3 mm), which is suitable for products with simple shape and thickness requirement limit. The high stiffness of the stainless steel material can provide good support and protection for the module, and completely avoid the curling and curling in the aging and reliability process.

[0045] In this embodiment, the related parameters of several stainless steels are listed, and Table 1 can be referred to for details.

[0046] Exemplarily, the material of the support substrate 2 is a titanium alloy, and the thickness of the support substrate 2 is 0.5-0.8 mm, so that the support substrate 2 includes a bent region in a bent form, and the flexible display layer 1 can be curved along with the form of the support substrate 2.

[0047] Titanium alloy has super-elasticity (yield strength > 700 MPa) and excellent corrosion resistance, which can meet the folding display requirements of vehicles and the reliability requirements of military and other harsh applications. In the implementation process, other non-metallic materials with good performance, such as high-thermal-conductivity carbon fibers and industrial plastics, can also be selected according to the situation.

[0048] In this embodiment, the related parameters of titanium alloy are listed, which can be referred to Table 1 below.

[0049] Table 1

[0050]

[0051] The support substrate 2 includes a bending area which is in a flexible form and can be bent under the action of external force, so that the flexible display layer 1 can be curved with the form of the support substrate 2. That is, before being attached to the curved cover plate 3, the support substrate 2 has a certain strength to maintain a flat form, and at the same time, the support substrate 2 has a certain elastic modulus and can be bent under the action of external force, so that the flexible display layer 1 can be curved with the form of the support substrate 2. The flexible display layer 1 includes a display panel, a polarizing sheet or a PST (polarizing sheet + touch screen integrated structure) on the light-emitting side of the display panel, etc. (for example, the flexible display layer 1 can also include a light control film (LCF)). When assembling, the flexible display layer 1 can be assembled first, and then the flexible display layer 1 and the support substrate 2 are attached, and then the flexible display layer 1 and the support substrate 2 after attachment can be bent together to be curved by cold bending, and then the curved attachment of the cover plate 3 is performed, that is, the cover plate 3 is shipped without the cover plate 3.

[0052] The support substrate 2 includes a bending area in a bending shape, so that the flexible display layer 1 can be curved along the shape of the support substrate 2. That is, before being attached to the curved cover plate 3, the support substrate 2 is kept in a bending state, and after the flexible display layer 1 is attached to the support substrate 2, the flexible display layer 1 and the support substrate 2 are kept in a bending state (i.e., a 3D state) together, and the support substrate 2 is kept in a bending shape, which needs to have high stiffness and strength, and also needs to have certain bendability (considering the attachment to the CG). Considering the heat dissipation and heat distribution, the material of the support substrate 2 uses a stamping aluminum alloy material with a thickness of 0.5-0.8 mm, which can meet the above requirements. However, when attached to the cover plate 3, it is a hard-to-hard curved surface attachment, which is difficult to attach. If the curvatures of the two (the cover plate 3 and the assembled flexible display layer 1 and support substrate 2) are completely consistent, there is a risk of virtual attachment, air bubbles and other factors that may cause product failure. To solve the above problems, the curvature of the support substrate 2 in a bending shape needs to be pre-contracted, that is, the curvature of the support substrate 2 is reduced, so that it needs to leave a certain gap compared to the cover plate 3 as a pre-compensation, so that it has a certain deformation distance when attached to the cover plate 3. In some embodiments, the display module further includes a cover plate 3, and the curvature of the cover plate 3 is greater than the curvature of the support substrate 2.

[0053] It should be noted that the value of the compensation can be determined according to the length of the curved edge of the cover plate 3. For products with a curved edge length greater than 300 mm, the curvature of the support substrate 2 is pre-contracted by 10%, and for products with a curved edge length less than 300 mm, the pre-contracted ratio of the curvature of the support substrate 2 can be slightly enlarged, that is, the curvature of the support substrate 2 is reduced by more than 10%.

[0054] It should be noted that in the embodiment in which the support substrate 2 includes a bending area in a bending shape, considering that the support substrate 2 needs to be kept in a bending state, the thickness of the support substrate 2 is thicker than the embodiment in which the support substrate 2 includes a bending area in a flexible shape and can be bent under external force (the support substrate 2 is kept in a planar shape before being attached to the cover plate 3, and can be bent under external force when being attached to the cover plate 3). However, the heat dissipation and heat distribution effects are better. And in the embodiment in which the support substrate 2 includes a bending area in a bending shape, the risk of hard-to-hard curved surface mutual attachment is also avoided by pre-contracting the curvature of the support substrate 2.

[0055] It should be noted that the support substrate 2 includes a to-be-bent region which is in a flexible form and can be bent under the action of external force, so that the flexible display layer 1 can be curved along the form of the support substrate 2. That is, before being attached to the curved cover plate 3, the support substrate 2 has a certain strength to maintain a planar form, and at the same time, the support substrate 2 has a certain elastic modulus and can be bent under the action of external force, so that the flexible display layer 1 can be curved along the form of the support substrate 2. In this embodiment, the support substrate 2 has the following properties: elastic modulus > 50GPA, tensile strength > 200MPA.

[0056] In the embodiment in which the support substrate 2 includes a bent region in a bent form (that is, the support substrate 2 includes a bent region in a bent form, so that the flexible display layer 1 can be curved along the form of the support substrate 2), before being attached to the cover plate 3, the bent state needs to be maintained, so a certain rigidity is required, for example, rigidity > 200MPA, but not limited thereto.

[0057] Illustratively, the support substrate 2 includes a central region 21 connected to the flexible display layer 1 and an edge region 22 located at the periphery of the central region 21. That is, the area of the support substrate 2 is expanded relative to the area of the flexible display layer 1 to effectively protect the flexible display layer 1.

[0058] Illustratively, the width of the edge region is 0.3-0.5mm, but not limited thereto.

[0059] The embodiment of the present application also provides a display device, which comprises the display module and a frame, and the frame comprises a bottom plate and side plates located around the bottom plate, and the support substrate 2 is fixed to the bottom plate through a heat-conducting adhesive material 100, and the heat-conducting adhesive material 100 is located between the support substrate 2 and the bottom plate. Figure 3 .

[0060] Illustratively, the heat-conducting adhesive material 100 can be heat-conducting silicone grease to improve the heat-conducting ability of the support substrate 2, but not limited thereto.

[0061] In the embodiment in which the support substrate 2 includes a to-be-bent region which is in a flexible form and can be bent under the action of external force, the support substrate 2 is maintained in a planar form before being attached to the cover plate 3, and can be bent under the action of external force when being attached to the cover plate 3, and then is attached to the cover plate 3, so that the support substrate 2 has a certain rebound stress which cannot be released in such an assembly mode, and the end surface of the side plate and the cover plate 3 are fixed by frame attachment to maintain the curved form of the display module, and the end surface of the side plate and the cover plate 3 are connected through a connecting adhesive layer 200. Figure 3

[0062] ​The support substrate 2 is fixed on the bottom plate by the heat-conducting adhesive 100, and the rebound force of the support substrate 2 does not pull the flexible display layer 1.

[0063] Figure 3 The schematic diagram of the back of the display module is shown, and the frame is not shown in Figure 3 , but Figure 3 The connecting adhesive layer 200 is arranged at the edge of the cover plate 3, and the outer periphery of the orthographic projection of the support substrate 2 on the cover plate 3 surrounds the connecting adhesive layer 200. In order to facilitate the attachment, four connecting adhesive layers 200 corresponding to the four edges of the cover plate 3 are provided, and the four connecting adhesive layers 200 can be connected end to end to increase the connection area. In some embodiments, the four connecting adhesive layers 200 can also be connected as an integral structure, and the application is not limited thereto.

[0064] Referring to Figure 3 , the side of the support substrate 2 away from the flexible display layer 1 has a first area and a second area. The flexible display layer 1 includes a display panel and a flexible circuit board 10 bound with the display panel. The flexible circuit board 10 is bent to the back light side of the support substrate 2. The orthographic projection of the flexible circuit board 10 on the support substrate 2 is located in the first area. The heat-conducting adhesive 100 is arranged in the second area, and the heat-conducting adhesive 100 is arranged in the second area in a patterned structure, Figure 4 In some embodiments, the heat-conducting adhesive 100 is in a mesh pattern, but the application is not limited thereto.

[0065] The application also provides an assembling method of a display module, which is used for assembling the display module. The display module includes a flexible display layer 1, a cover plate 3 located at the light-emitting side of the flexible display layer 1, and a support substrate 2 located at the back light side of the flexible display layer 1.

[0066] The support substrate 2 includes a to-be-bent area which is in a flexible form and can be bent under an external force, so that the flexible display layer 1 can be in a curved form according to the form of the support substrate 2.

[0067] Referring to Figure 5 , the assembling method includes the following steps:

[0068] Attaching the flexible display layer 1 and the support substrate 2;

[0069] Bending the attached flexible display layer 1 and the support substrate 2 to form a curved form;

[0070] Attaching the cover plate 3 and the flexible display layer 1 in the curved form.

[0071] The flexible display layer 1 comprises a display panel, a polarizer, and a touch layer, the polarizer and the touch layer are integrated together (the polarizer and the touch sensor are integrated, English abbreviation PST: English full name Polarizer and Touch Sensor), before the flexible display layer 1 is laminated with the support substrate 2, the following steps are further included:

[0072] The display panel, the integrated polarizer, and the touch layer are connected, assembled, and cut.

[0073] The embodiment of the present application further provides an assembling method of a display module, which is used for assembling the display module, the display module comprising a flexible display layer 1, a cover plate 3 located at the light-out side of the flexible display layer 1, and a support substrate 2 located at the backlight side of the flexible display layer 1.

[0074] The support substrate 2 comprises a bending area in a bending shape, so that the flexible display layer 1 can be curved along the shape of the support substrate 2.

[0075] Reference ​ The assembling method comprises the following steps:

[0076] The flexible display layer 1 is laminated with the support substrate 2, so that the flexible display layer 1 is curved along the shape of the support substrate 2.

[0077] The cover plate 3 is laminated with the flexible display layer 1 in a curved shape.

[0078] The flexible display layer 1 comprises a display panel, a polarizer, and a touch layer, the polarizer and the touch layer are integrated together (the polarizer and the touch sensor are integrated, English abbreviation PST: English full name Polarizer and Touch Sensor), before the flexible display layer 1 is laminated with the support substrate 2, the following steps are further included:

[0079] The display panel, the integrated polarizer, and the touch layer are connected, assembled, and cut.

[0080] It can be understood that the above embodiments are only exemplary embodiments for illustrating the principles of the present application, and the present application is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and essence of the present application, and these modifications and improvements are also regarded as the protection scope of the present application.

Claims

1. A display module, characterized by The display module comprises a flexible display layer and a support substrate arranged on the backlight side of the flexible display layer for supporting the flexible display layer, the support substrate comprises a bending area in a bending shape or a to-be-bent area in a flexible form and capable of being bent under external force, so that the flexible display layer can be curved along with the form of the support substrate; The elastic modulus of the support substrate is greater than 50GPA, the tensile strength of the support substrate is greater than 200MPA, and the rigidity of the support substrate is greater than 200MPA; The display module further comprises a cover plate arranged on the light-emitting side of the flexible display layer, the curvature of the cover plate is greater than the curvature of the support substrate, and the curvature of the support substrate is pre-contracted by more than 10% relative to the curvature of the cover plate; The periphery of the display module is provided with a frame, the support substrate is fixed on the bottom plate of the frame through a heat-conducting adhesive material, and the heat-conducting adhesive material is in a mesh pattern structure.

2. The display module of claim 1, wherein, The material of the support substrate is aluminum alloy, stainless steel or titanium alloy.

3. The display module of claim 1, wherein, The material of the support substrate is aluminum alloy, and the thickness of the support substrate is 0.2-0.4mm, so that the support substrate comprises a to-be-bent area in a flexible form and capable of being bent under external force.

4. The display module of claim 1, wherein, The material of the support substrate is stainless steel, and the thickness of the support substrate is 0.15-0.3mm, so that the support substrate comprises a to-be-bent area in a flexible form and capable of being bent under external force.

5. The display module of claim 1, wherein, The material of the support substrate is titanium alloy, and the thickness of the support substrate is 0.5-0.8mm, so that the support substrate comprises a bending area in a bending shape, and the flexible display layer can be curved along with the form of the support substrate.

6. The display module of claim 1, wherein, The support substrate comprises a central area connected with the flexible display layer and an edge area located at the periphery of the central area.

7. A display device, characterized by comprising: The display module comprises the display module of any one of claims 1-6, and further comprises a frame, the frame comprises a bottom plate and side plates located at the periphery of the bottom plate, and the support substrate is fixed on the bottom plate through a heat-conducting adhesive material.

8. A method of assembling a display module for the display module of any one of claims 1-4, 6, wherein The display module comprises a flexible display layer, a cover plate arranged on the light-emitting side of the flexible display layer, and a support substrate arranged on the backlight side of the flexible display layer; The support substrate comprises a to-be-bent area in a flexible form and capable of being bent under external force, so that the flexible display layer can be curved along with the form of the support substrate; The assembly method comprises the following steps: The flexible display layer is laminated with the support substrate; The laminated flexible display layer and the support substrate are bent to form a curved surface; The cover plate is laminated with the flexible display layer in a curved surface.

9. A method of assembling a display module for the display module of any one of claims 1-2, 5-6, wherein, The display module comprises a flexible display layer, a cover plate arranged on the light-emitting side of the flexible display layer, and a support substrate arranged on the backlight side of the flexible display layer; The support substrate comprises a bending area in a bending shape, so that the flexible display layer can be curved along with the form of the support substrate; The assembly method comprises the following steps: The flexible display layer is laminated with the support substrate, so that the flexible display layer is curved along with the form of the support substrate; The cover plate is laminated with the flexible display layer in a curved surface.

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