Display module and manufacturing method thereof

Abstract

The present application relates to a display module and a manufacturing method thereof. The display module includes: a display substrate and a protection unit. The display substrate includes a display substrate having a display portion, a bonding portion, and a bending portion located between the display portion and the bonding portion, and the display substrate has a first side and a second side disposed opposite to each other; and a cover plate provided on the first side of the display substrate. The protection unit includes a main body portion laminated on a side of the cover plate facing away from the display substrate, and a protection portion bent and extended from the main body portion and connected to the second side of the display substrate; a protection space is formed between the protection portion and the display panel, the bending portion is located in the protection space and is spaced apart from the protection portion. The present application can effectively protect the bending portion of the display substrate by using the protection unit, so as to improve the yield of display products, and has a lower cost and a relatively simple assembly process.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and particularly to a display module and a manufacturing method thereof. Background Art

[0002] In recent years, with the development of society and the progress of technology, users' demands for display devices have become increasingly diverse. For example, curved-screen mobile phones are the trend of the appearance design, and foldable-screen mobile phones are the focus of attention in the near future. Among them, OLED (Organic Light-Emitting Diode) display panels have been widely used due to their advantages such as bendability and good flexibility. For OLED display panels, the bendability of the display panel is achieved by using a flexible substrate and thin-film encapsulation, and the rollability and stretchability have been gradually realized. For the encapsulation process of the display panel, currently, the COP (Chip On Pi) encapsulation process is mostly adopted, and the non-display area of the display substrate in the display panel is bent to the back for encapsulation. In addition, in order to avoid the bending part of the display substrate being easily squeezed and collided during packaging and transportation, in-factory transfer, etc., resulting in the fracture of the metal traces inside the bending part, in the manufacturing process of the existing OLED display panel, a protection bracket made of PC material is installed on the display substrate, and the protection bracket protects the bending part of the display substrate and the driving IC. However, the manufacturing process of this protection bracket needs to go through processes such as mold opening and injection molding, and a special alignment jig is also required to assist in alignment during the installation and positioning process of the display substrate, which not only has a high cost but also a relatively complex assembly process. Summary of the Invention

[0003] Based on this, it is necessary to provide a display module and a manufacturing method thereof, in which the protection unit in the display module can protect the bending area of the display substrate, and has a low cost and a relatively simple assembly process.

[0004] According to one aspect of the present application, a display module is provided. The display module includes a display panel and a protection unit. The display panel includes: a display substrate having a display portion, a bonding portion, and a bending portion located between the display portion and the bonding portion, and the display substrate has a first side and a second side disposed opposite to each other; and a cover plate disposed on the first side of the display substrate. The protection unit includes a main body portion laminated on the side of the cover plate facing away from the display substrate, and a protection portion bent and extended from the main body portion and connected to the second side of the display substrate; a protection space is formed between the protection portion and the display panel, the bending portion is located in the protection space and is spaced apart from the protection portion.

[0005] In the above solution, by providing a protection unit, the protection unit has a main body portion laminated on a side of the cover plate facing away from the display substrate and a protection portion bent and extended from the main body portion and connected to the second side of the display substrate. During the installation process of the protection unit, as long as the main body portion is laminated on the side of the cover plate facing away from the display substrate and the protection portion is connected to the second side of the display substrate, the bent portion can be arranged in the protection space formed between the protection portion and the display panel. In other words, the protection unit wraps the ends of the display substrate and the cover plate. During this process, the requirement for alignment accuracy is much lower than that of the installation of a PC bracket in the related art. Without using an additional auxiliary jig, the protection unit can be installed on the display substrate, and the assembly process is relatively simple. In addition, compared with a protection bracket that needs to be injection-molded, the cost of the protection unit is also lower.

[0006] In addition, a protection space is formed between the protection portion and the display panel. The bent portion is located in the protection space and is spaced apart from the protection portion. In this way, when the display panel is squeezed or collided during in-factory transportation, packaging and transportation, etc., the protection portion can undergo certain deformation and displacement through this gap under the action of the impact force, which can effectively reduce the impact, protect the bent portion, prevent the metal traces inside the display substrate from breaking, and improve the yield of the display panel.

[0007] In some embodiments, the protection portion includes: a first film layer; and a support layer disposed on a surface of the first film layer facing the display substrate and configured to cover at least an area corresponding to the bent portion on the first film layer;

[0008] Preferably, the main body portion is a second film layer, and the second film layer and the first film layer are integrally formed.

[0009] In some embodiments, the material of the support layer is an EPE film or a foam.

[0010] In some embodiments, the support layer is adhered to the first film layer through a first adhesive layer; a surface of the support layer facing away from the first film layer is adhered to the second side of the display substrate through a second adhesive layer, so that the protection portion is connected to the second side of the display substrate.

[0011] In some embodiments, there is a gap between the support layer and the cover plate.

[0012] In some embodiments, the projections of the main body portion and the cover plate on the display substrate completely overlap.

[0013] In some embodiments, a driving chip is provided in the bonding portion, and there is a gap between the protection portion and the driving chip.

[0014] In some embodiments, the cover plate extends beyond the outer edge of the bent portion in a first direction, where the first direction is the direction from the display portion to the bent portion.

[0015] In some embodiments, a circuit board is provided on the second side of the display substrate. A connector for external electrical connection is provided on the circuit board, and an avoidance notch is provided on the protection part corresponding to the position of the connector.

[0016] In some embodiments, the number of bending parts is two, and the two bending parts are respectively located at two opposite ends of the display part;

[0017] The number of protection parts included in the protection unit is two. The two protection parts are respectively provided at two opposite ends of the main body part, and one protection part is correspondingly provided for each of the two bending parts.

[0018] According to another aspect of the present application, there is also provided a method for manufacturing a display module, including:

[0019] Providing a display module, where the display module is the aforementioned display module;

[0020] Tearing off the protection unit in the display module. Description of the Drawings

[0021] Figure 1 Is a bottom view of the display module provided by an embodiment of the present application;

[0022] Figure 2 Is Figure 1 A cross-sectional view along the A-A line of;

[0023] Figure 3 Is Figure 2 A partial enlarged view of B of;

[0024] Figure 4 Is a schematic structural view of the protection unit in the display module provided by an embodiment of the present application in an unfolded state;

[0025] Figure 5 Is Figure 4 A cross-sectional view along the C-C line of;

[0026] Figure 6 Is a schematic connection diagram of the protection unit and the display substrate in the display module provided by an embodiment of the present application.

[0027] Explanation of the Reference Numerals in the Drawings:

[0028] F, the first side; S, the second side; E, the protection space;

[0029] 1000, display module;

[0030] 100, display panel;

[0031] 10, display substrate; 11, display part; 12, bending part; 13, bonding part;

[0032] 20, cover plate; 21, optical adhesive layer;

[0033] 30. Protection unit; 31. Main body part; 32. Protection part; 321. Bending structure; 322. Straight part; 323. First film layer; 324. Support layer; 3241. First adhesive layer; 3242. Second adhesive layer; 325. Second film layer; 326. Avoidance notch;

[0034] 40. Driving chip; 50. Circuit board; 51. Connector. Detailed implementation manner

[0035] To facilitate the understanding of this application, the following will provide a more comprehensive description of this application with reference to the relevant drawings. The drawings show preferred embodiments of this application. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of this application more thorough and comprehensive.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the description of this application in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0037] When describing positional relationships, unless otherwise specified, when an element such as a layer, film, or substrate is referred to as being "on" another element

[0038] it can be directly on other elements or there can also be intermediate elements. Further, when a layer is referred to as being "under" another layer, it can be directly below or there can be one or more light-emitting units. It can also be understood that when a layer is referred to as being "between" two layers

[0039] it can be the only layer between the two layers or there can also be one or more light-emitting units.

[0040] When using the terms "including", "having", and "comprising" described herein, unless specific limiting terms such as "only", "consisting of", etc. are used, another component can also be added. Unless otherwise mentioned, singular

[0041] forms of terms can include plural forms and should not be understood as having a quantity of one.

[0042] It should be understood that although terms such as "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to separate one element from another. For example, without departing from

[0043] Within the scope of this application, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element.

[0044] It should also be understood that when interpreting an element, although not explicitly described, the element is interpreted to include an error range, which should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "about", "approximate"

[0045] or "substantially" may mean within one or more standard deviations, which is not defined herein.

[0046] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements are only drawn by way of example in the drawings and not necessarily to the true scale.

[0047] With the rapid development of OLED (Organic Light-Emitting Diode) display panel technology, it has been widely used due to its bendable and good flexibility characteristics. Compared with the traditional TFT-LCD technology, one of the major advantages of OLED is that it can be made into foldable, rollable or stretchable products.

[0048] For an OLED display panel, the bendability of the display panel is achieved by using a flexible substrate and thin-film encapsulation, and gradually the rollability and stretchability are achieved. For the encapsulation of the display panel, currently, the COP (Chip On Pi) encapsulation process is mostly adopted, and the non-display area of the display substrate is bent to the back for encapsulation.

[0049] However, before the display panel using the COP encapsulation and display substrate bending process is assembled into a complete machine, the bent part of the display substrate is easily squeezed and collided during packaging and transportation, in-factory transfer, etc., resulting in the fracture of the metal traces inside the bent part, leading to poor display of the display substrate and a decrease in the yield of the display panel.

[0050] To solve the above problems, in the production process of existing OLED flexible display panels, a protection bracket made of PC material is installed on the display substrate, and the protection bracket protects the bent part of the display substrate and the driving IC. However, the production process of this protection bracket requires processes such as mold opening and injection molding, and a special alignment jig is also required to assist in alignment during the installation and positioning process of the display substrate, which not only has a high cost but also has a relatively complex assembly process.

[0051] To solve the above problems, in the production process of existing OLED flexible display panels, a protection bracket made of PC material is installed on the display substrate, and the protection bracket protects the bent part of the display substrate and the driving IC. However, the production process of this protection bracket requires processes such as mold opening and injection molding, and a special alignment jig is also required to assist in alignment during the installation and positioning process of the display substrate, which not only has a high cost but also has a relatively complex assembly process.

[0052] However, the production process of this protection bracket requires processes such as mold opening and injection molding, and a special alignment jig is also required to assist in alignment during the installation and positioning process of the display substrate, which not only has a high cost but also has a relatively complex assembly process.

[0053] In view of the above problems, an embodiment of the first aspect of the present application provides a display module. By providing a protection unit, with a part of the structure of the protection unit disposed on the cover plate on the first side of the display substrate and another part of the structure connected to the second side of the display substrate, the bending portion can be disposed in the protection space formed between the protection portion and the display panel, and the requirement for positioning accuracy is much lower than that of the PC bracket in the related art, and the assembly process is relatively simple.

[0054] Figure 1 The bottom view of the display module provided by an embodiment of the present application. Figure 2 Along Figure 1 The cross-sectional view taken along line A-A of Figure 3 For Figure 2 The partial enlarged view at B of Figure 4 The schematic structural view of the protection unit in the unfolded state in the display module provided by an embodiment of the present application. Figure 5 For Figure 4 The cross-sectional view taken along line C-C of Figure 6 The schematic connection diagram of the protection unit and the display substrate in the display module provided by an embodiment of the present application.

[0055] Referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 The display module 1000 provided by the embodiment of the present application includes a display panel 100 and a protection unit 30. The display panel 100 includes a display substrate 10 and a cover plate 20. The display substrate 10 has a display portion 11, a bonding portion 13, and a bending portion 12 located between the display portion 11 and the bonding portion 13, and the display substrate 10 has a first side F and a second side S that are oppositely arranged. The cover plate 20 is disposed on the first side F of the display substrate 10. The protection unit 30 includes a main body portion 31 laminated on the side of the cover plate 20 facing away from the display substrate 10, and a protection portion 32 that is bent and extended from the main body portion 31 and connected to the second side S of the display substrate 10; a protection space E is formed between the protection portion 32 and the display panel 100, the bending portion 12 is located in the protection space E and is spaced apart from the protection portion 32.

[0056] In the above solution, by providing the protection unit 30, the protection unit 30 has a main body portion 31 laminated on the side of the cover plate 20 facing away from the display substrate 10 and a protection portion 32 bent and extended from the main body portion 31 and connected to the second side S of the display substrate 10. During the installation process of the protection unit 30, as long as the main body portion 31 is laminated on the side of the cover plate 20 facing away from the display substrate 10 and the protection portion 32 is connected to the second side S of the display substrate 10, the bending portion 12 can be disposed within the protection space E formed between the protection portion 32 and the display panel 100. In other words, the protection unit 30 wraps the ends of the display substrate 10 and the cover plate 20. During this process, the requirement for alignment accuracy is much lower than that of the installation of a PC bracket in the related art. Without using additional auxiliary jigs, the protection unit 30 can be installed on the display substrate, and the assembly process is relatively simple. In addition, compared with a protection bracket that needs to be injection-molded, the cost of the protection unit 30 is also lower.

[0057] In addition, a protection space E is formed between the protection portion 32 and the display panel 100. The bending portion 12 is located within the protection space E and is spaced apart from the protection portion 32. Thus, when the display panel 100 is squeezed or collided during in-factory transfer, packaging and transportation, etc., the protection portion 32 can undergo certain deformation and displacement through this interval under the action of the impact force, which can effectively mitigate the impact, protect the bending portion 12, prevent the internal metal traces of the display substrate 10 from breaking, and improve the yield rate of the display panel 100.

[0058] It should be noted that, in the protection unit 30, the portion laminated and attached to the cover plate 20 is defined as the main body portion 31, and the portion of the protection unit 30 other than the main body portion 31 is defined as the protection portion 32. Thus, the main body portion 31 can play a role in protecting the entire cover plate 20.

[0059] In the display substrate 10 of the embodiment of the present application, continue to refer to Figure 3 , the bending portion 12 is an area in a bent state. The bending portion 12 is located between the display portion 11 and the bonding portion 13, so that the bonding portion 13 is located on the back surface of the display portion 11. Specifically, in implementation, the display portion 11 and the bonding portion 13 can be disposed opposite to each other.

[0060] In the embodiment of the present application, in combination with Figure 1 、 Figure 3 and Figure 4, taking the number of the bending portions 12 as two, and the two bending portions 12 are respectively located at two opposite ends of the display portion 11 as an example for illustration. At this time, the number of the protection portions 32 included in the protection unit 30 is two, and the two protection portions 32 are respectively provided at two opposite ends of the main body portion 31, and one protection portion 32 is correspondingly provided for each of the two bending portions 12. In this way, the protection unit 30 can better protect each bending portion 12 on the display substrate 10. Of course, the number of the bending portions 12 can also be other numbers. In the case where the number of the bending portions 12 is other numbers, the number of the protection portions 32 needs to be the same as that of the bending portions 12, and the protection portions 32 should be provided on the outer side of the bending direction of each bending portion 12 one by one. The setting situation of each protection portion 32 in this case is similar to that of the protection portion 32 shown in Figure 1 and will not be elaborated here.

[0061] Figure 4 , Figure 5 The case where the number of the protection portions 32 is two in the protection unit 30 shown in is exemplified. At this time, in combination with Figure 2 , 6 , the main body portion 31 in the protection unit 30 is attached to and laminated on the cover plate 20, and the two protection portions 32 are bent and pasted to the second side S of the display substrate 10 to form Figure 1 the display module 1000 with the structure shown.

[0062] Continuing to refer to Figure 2 , Figure 3 , as described above, the cover plate 20 is provided on the first side F of the display substrate 10 and is located at the display portion 11 and at least part of the bending portions 12. Here, the cover plate 20 is located at the display portion 11 and at least part of the bending portions 12, which means that the projection part of the bending portion 12 is located / entirely located on the cover plate 20. Exemplarily, the cover plate 20 can be bonded to the first side F of the display portion 11 and at least part of the bending portions 12 through the optical adhesive layer 21, and the cover plate 20 can play a certain role in protecting the bending portions 12.

[0063] In some embodiments, the display panel 100 further includes a driving chip 40 provided on the display substrate 10 and located at the bonding portion 13. The display substrate 10 may further include a circuit board 50, and the circuit board 50 is provided on the second side S of the display substrate 10 and is located at the display portion 11. Specifically, when implemented, a composite tape may be provided on the second side S of the display substrate 10, and the circuit board 50 is bonded to the second side S of the display substrate 10 through the composite tape. In addition, the driving chip 40 and the circuit board 50 are electrically connected.

[0064] In some other embodiments, a connector 51 for external electrical connection is further provided on the circuit board 50. The connector 51 is disposed on a side of the circuit board 50 facing away from the display substrate 10. The number of connectors 51 can be set as required. For example, it can be four. Of course, the number of connectors 51 is not limited to this and can also be set as required.

[0065] The structure of the protection unit 30 will be described in detail below. With reference to Figure 3 、 Figure 5 , as described above, the protection part 32 extends by bending from the main body part 31. Specifically, it means that one end of the protection part 32 is connected to the main body part 31, and the other end extends in a direction away from the main body part 31, and a bending structure 321 is formed on the protection part 32. And the main body part 31 is laminated on a side of the cover plate 20 facing away from the display substrate 10. For example, the main body part 31 can be adhered to a side of the cover plate 20 facing away from the display substrate 10 through an adhesive layer (not shown).

[0066] In addition, a protection space E is formed between the protection part 32 and the display panel 100, which means that a protection space E is defined between the bending structure 321 on the protection part 32 and the cover plate 20. The bending part 12 is located in the protection space E. Since the bending structure 321 of the protection part 32 is arranged corresponding to the bending part 12, the bending radius of the bending structure 321 is greater than the bending radius of the bending part 12, and each part of the bending structure 321 has a gap with the bending part 12, so that the protection part 32 is suspended and erected outside the bending direction of the bending part 12 and does not contact the bending part 12.

[0067] The protection part 32 further includes a straight part 322 connected to the bending structure 321. The straight part 322 can be fixed on the second side S of the display substrate 10 so that the protection part 32 is connected to the second side S of the display substrate 10.

[0068] To further improve the protection effect of the protection part 32, the protection part 32 can be considered to be set as a multi-layer structure. Exemplarily, the protection part 32 includes: a first film layer 323 and a support layer 324. The support layer 324 is disposed on a surface of the first film layer 323 facing the display substrate 10 and is configured to at least cover the area on the first film layer 323 corresponding to the bending part 12. Since the support layer 324 supports the first film layer 323, it can increase the hardness of the protection part 32 and improve the protection effect of the protection unit 30 on the bending part 12. Preferably, the material of the support layer 324 can be an EPE film or a foam. The EPE film or the foam has a moderate hardness, which can not only enhance the hardness of the protection part 32 but also play a role as a buffer material to a certain extent. Even when the protection part 32 deforms and displaces and contacts the bending part 12, it will not cause damage to the bending part 12.

[0069] Regarding the structure of the main body portion 31, it can be set as a single-layer structure. Exemplarily, the main body portion 31 can be the second film layer 325, and the second film layer 325 is integrally formed with the first film layer 323. The second film layer 325 is laminated on the side of the cover plate 20 facing away from the display substrate 10. In this way, the second film layer 325 can play a role in protecting the cover plate 20, that is, in the case where the protection unit 30 is provided, the cover plate protection unit in the related art can be omitted, and the second film layer 325 and the first film layer 323 are integrally formed. In this way, the protection unit 30 can be fabricated only by fabricating the support layer 324 on a single integral film layer, making the fabrication process of the protection unit 30 relatively simple.

[0070] Further, referring to Figure 5 , the support layer 324 is bonded to the first film layer 323 through the first adhesive layer 3241, and the side of the support layer 324 facing away from the first film layer 323 is bonded to the second side of the display substrate 10 through the second adhesive layer 3242, so that the protection portion 32 is connected to the second side of the display substrate 10. In this way, the support layer 324 can be connected to the first film layer 323 relatively simply, reducing the cost. Combining Figure 2 and Figure 5 , it should be noted that only the end partial area of the support layer 324 for connecting to the second side of the display substrate 10 is provided with the second adhesive layer 3242, so as to prevent the support layer 324 from touching the bending portion 12 and the driving chip 40 and then contaminating the bending portion 12 and the driving chip 40, and also to prevent the support layer 324 from sticking to the bending portion 12 and the driving chip 40.

[0071] It can be understood that, referring to Figure 3 , in order to prevent the protection portion 32 from touching the cover plate 20 layer when being impacted and deformed or displaced, there should also be a gap H between the support layer 324 and the cover plate 20. That is, the end of the support layer 324 close to the main body portion 31 should also keep a certain gap H from the cover plate 20.

[0072] In the embodiment of the present application, further, the cover plate 20 is extended to the outside of the edge of the bending portion 12 in the first direction D, where the first direction D is the direction from the display portion 11 to the bending portion 12. Compared with the cover plate 20 being flush with the edge of the bending portion 12 in the first direction F, such a setting can make there be a sufficient gap between the bending structure 321 in the protection portion 32 and the bending portion 12 of the display substrate 10.

[0073] It can be understood that there should also be a gap between the protection part 32 and the driving chip 40, so that when the protection part 32 is impacted, it can also protect the driving chip 40. In the embodiment of the present application, as described above, the main body part 31 is stacked on the cover plate 20, and the protection part 32 can be connected to the second side S of the display substrate 10. After the protection unit 30 is connected to the display substrate 10, there should also be a gap between the protection part 32 and the driving chip 40. The bending radius of the bending structure 321 can be greater than the bending radius of the bending part 12, so that the protection unit 30 completely covers the outside of the bending part 12 and the driving chip 40, and provides better protection for both the bending part 12 and the driving chip 40.

[0074] In addition, continuing to refer to Figure 1 、 Figure 6 , in the case where the connector 51 is provided on the circuit board 50, it can be considered that an avoidance notch 326 is provided at the position of the protection part 32 corresponding to the connector 51, so as to prevent the protection unit 30 from blocking the connector 51 or contaminating the port of the connector 51.

[0075] An embodiment of the second aspect of the present application proposes a method for manufacturing a display module, including:

[0076] Providing a display module, where the display module is the display module in the foregoing embodiment;

[0077] Tearing off the protection unit in the display module.

[0078] It should be noted that the specific structure, working principle, etc. of the display module have been described in detail above and will not be repeated here.

[0079] It can be understood that during the manufacturing process of the display device, during the packaging and transportation, in-factory transfer, etc. of the display module, due to the setting of the protection unit, the impact can be effectively reduced, the internal metal traces of the display substrate can be prevented from breaking, and the yield of the display module is improved. In the subsequent process of further assembling into a complete machine, the protection unit can be torn off and then the subsequent assembly operations can be carried out.

[0080] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0081] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A display module, characterized in that, it includes: A display panel, including: A display substrate having a display portion, a bonding portion, and a bending portion located between the display portion and the bonding portion, and the display substrate has a first side and a second side disposed opposite to each other; A cover plate provided on the first side of the display substrate; A protection unit including a main body portion laminated and attached to a side of the cover plate facing away from the display substrate, and a protection portion bent and extended from the main body portion and connected to the second side of the display substrate; A protection space is formed between the protection portion and the display panel, the bending portion is located in the protection space and is spaced apart from the protection portion; The protection portion includes a first film layer, the main body portion is a second film layer, and the second film layer and the first film layer are integrally formed.

2. The display module according to claim 1, characterized in that, The protection portion further includes a support layer, the support layer is disposed on a surface of the first film layer facing the display substrate, and is configured to at least cover an area corresponding to the bending portion on the first film layer.

3. The display module according to claim 2, characterized in that, The material of the support layer is an EPE film or a foam.

4. The display module according to claim 2, characterized in that, The support layer is bonded to the first film layer through a first adhesive layer; A side of the support layer facing away from the first film layer is bonded to the second side of the display substrate through a second adhesive layer, so that the protection portion is connected to the second side of the display substrate.

5. The display module according to claim 2, characterized in that, There is a gap between the support layer and the cover plate.

6. The display module according to claim 1, characterized in that, A driving chip is provided on the bonding portion, and there is a gap between the protection portion and the driving chip.

7. The display module according to claim 1, characterized in that, The cover plate extends outside the first direction edge of the bending portion, wherein the first direction is the direction from the display portion to the bending portion.

8. The display module according to claim 1, characterized in that, A circuit board is provided on the second side of the display substrate, a connector for external electrical connection is provided on the circuit board, and an avoidance notch is provided at a position corresponding to the connector on the protection portion.

9. The display module according to claim 1, characterized in that, The number of the bending portions is two, and the two bending portions are respectively located at two opposite ends of the display portion; The number of the protection portions included in the protection unit is two, the two protection portions are respectively disposed at two opposite ends of the main body portion, and one protection portion is correspondingly provided for each of the two bending portions.

10. A manufacturing method of a display module, characterized in that, it includes: Providing a display module, the display module being the display module according to any one of claims 1-9; Removing the protection unit in the display module.

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