Foldable display module and display device

Abstract

This application relates to a foldable display module and display device. The foldable display module includes a display panel, a polarizer, and a hardened coating. The polarizer is disposed on the light-emitting side of the display panel, and its side edge is recessed relative to the side edge of the display panel. In the direction away from the display panel, the polarizer includes at least a polarizing layer, a protective layer, and a hardened layer stacked together. The hardened coating is disposed on the light-emitting side of the display panel and at least covers the peripheral side surface of the polarizer. The edge of the hardened coating is flush with the edge of the display panel. The hardened coating and the hardened layer are separate components. This design improves the resistance of the foldable display module to pressure at its edges and prevents moisture from invading from the peripheral side surface of the polarizer, thereby preventing sweat from corroding the polarizer and solving the problem of polarizer edge fading caused by sweat corrosion.

Description

Technical Field

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

[0002] During mobile device use, sweat from the palms can easily seep into the display screen. Taking foldable products as an example, the hinge mechanism of current folding modules, due to its bending capability, leaves a gap between the bending area and the screen, making it impossible to achieve 100% waterproof and sweatproof performance. In foldable modules, flexible display panels typically have foldable polarizers. During the assembly and bonding process at the screen manufacturer, the polarizer undergoes a double-cut (laser cutting) process. After side cutting, the side of the polarizer's adhesive layer is directly exposed to the air. During artificial sweat testing, sweat can seep into the polarizer from the side, causing the edges of the polarizer to fade due to sweat corrosion. Summary of the Invention

[0003] This application provides a foldable display module and display device, which improves the compression resistance of the foldable display module at its edges and prevents moisture from intruding from the peripheral side of the polarizer.

[0004] To achieve the above objectives, according to a first aspect of this application, a foldable display module is provided, comprising:

[0005] Display panel; and,

[0006] A polarizer is disposed on the light-emitting side of the display panel. The edge of the polarizer is recessed relative to the edge of the display panel. In the direction away from the display panel, the polarizer includes at least a polarizing layer, a protective layer, and a hardening layer stacked together.

[0007] A hardened coating is disposed on the light-emitting side of the display panel, the hardened coating at least covers the peripheral side surface of the polarizer, and the edge of the hardened coating is flush with the edge of the display panel;

[0008] The hardening coating and the hardening layer are separate components.

[0009] In one embodiment, the elastic modulus of the hardened coating is greater than that of the hardened layer.

[0010] In one embodiment, the polarizer has a first surface facing away from the display panel;

[0011] The hardened coating includes a first protective section and a second protective section. The first protective section is arranged around the periphery of the second protective section. The second protective section covers the first surface of the polarizer, and the first protective section covers the periphery of the polarizer.

[0012] The first surface includes the side of the hardened layer that faces away from the protective layer.

[0013] In one embodiment, the elastic modulus of the first protection segment is greater than that of the second protection segment.

[0014] In one embodiment, the folding display module has two flat areas and a folded area connecting the two flat areas;

[0015] The elastic modulus of the second protective segment at the flattened area is greater than that at the bending area.

[0016] In one embodiment, the second protective segment is hollowed out and forms a mesh structure at the position corresponding to the bending area.

[0017] In one embodiment, the foldable display module further includes a first adhesive layer disposed on the side of the hardened coating facing the display panel, the first adhesive layer connecting the hardened coating and the display panel.

[0018] In one embodiment, the thermal shrinkage rate of the hardened coating is the same as that of the polarizer.

[0019] In one embodiment, the material of the hardened coating includes at least polyurethane or polyacrylate.

[0020] According to a second aspect of this application, a display device is provided, including the foldable display module described above.

[0021] In the foldable display module of this application embodiment, a polarizer is provided on the light-emitting side of the display panel. The polarizer includes a polarizing layer, a protective layer, and a hardening layer stacked together. The polarizing layer has polarization properties, the protective layer protects the polarizing layer from physical damage, moisture, and chemical corrosion, and the hardening layer increases the surface hardness of the polarizer to prevent scratches and wear. The edge of the polarizer is recessed relative to the edge of the display panel, and a hardening coating is applied to at least the periphery of the polarizer. By setting the edge of the hardening coating flush with the edge of the display panel, the edge compression resistance of the foldable display module is improved. At the same time, applying a hardening coating to the periphery of the polarizer can prevent moisture from invading from the periphery of the polarizer, thereby preventing sweat from corroding the polarizer and solving the problem of fading at the edge of the polarizer caused by sweat corrosion, thus improving the weather resistance of the foldable display module.

[0022] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0025] Figure 1 A layer diagram of the film layers in a foldable display module of the prior art;

[0026] Figure 2 Linear graph of dye loss at the side position of a polarizer in the prior art;

[0027] Figure 3 This is a first type of film layer diagram for a foldable display module provided in an embodiment of this application;

[0028] Figure 4 A film layer diagram of the first type of polarizer (incoming material state) provided in the embodiments of this application;

[0029] Figure 5 A first type of film layer diagram for a polarizer (in a bonded state) provided in an embodiment of this application;

[0030] Figure 6 This is a first type of film layer diagram for a foldable display module provided in an embodiment of this application;

[0031] Figure 7 A film layer diagram of the first type of polarizer (incoming material state) provided in the embodiments of this application;

[0032] Figure 8 A first type of film layer diagram for a polarizer (in a bonded state) provided in an embodiment of this application;

[0033] Figure 9 This is a plan view of the foldable display module provided in an embodiment of this application. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0035] This application provides a foldable display module 100 and a display device. These will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0036] In one aspect, embodiments of this application provide a foldable display module 100, please refer to... Figure 3 The foldable display module 100 includes a display panel 1, a polarizer 2, and a hardening coating 3. The polarizer 2 is disposed on the light-emitting side of the display panel 1, and the edge of the polarizer 2 is recessed relative to the edge of the display panel 1. In the direction away from the display panel 1, the polarizer 2 includes at least a polarizing layer 21, a protective layer 22, and a hardening layer 23 stacked together. The hardening coating 3 is disposed on the light-emitting side of the display panel 1, and the hardening coating 3 covers at least the peripheral side surface 2a of the polarizer 2. The edge of the hardening coating 3 is flush with the edge of the display panel 1. The hardening coating 3 and the hardening layer 23 are separately disposed.

[0037] As can be seen, in the existing technology, please refer to Figure 1 and Figure 2 Because the foldable display module 100' also has bending capabilities, there is a gap between the cover plate 4' and the display panel 1' at the overlapping position of the corresponding bending area, making it impossible to achieve 100% waterproofing. Furthermore, to ensure the neatness of the edges of the foldable display module 100', after the various film layers of the foldable display module 100' are laminated, the entire foldable display module 100' needs to be cut. However, after cutting, the side of the polarizer 2' is exposed, and sweat can penetrate from the side of the polarizer 2', damaging the boric acid bridging within the polarization layer of the polarizer 2', thereby causing the dye ([I3]) to... - And [I5] - The dye will fade due to loss, and acidic or alkaline environments will also accelerate the loss of dye, resulting in corrosion and fading at the edge of the polarizer 2', producing a white edge 1-3mm wide.

[0038] In this application, please refer to Figures 3 to 5The polarizer 2 includes a polarizing layer 21, a protective layer 22, and a hardening layer 23 stacked together. The polarizing layer 21 has polarization properties. The protective layer 22 protects the polarizing layer 21 from physical damage, moisture, and chemical corrosion. The hardening layer 23 increases the surface hardness of the polarizer 2, preventing scratches and wear. The edge of the polarizer 2 is recessed relative to the edge of the display panel 1. The hardening coating 3 covers at least the peripheral side surface 2a of the polarizer 2. The foldable display module 100 also includes a cover plate 4, a first optical adhesive layer 5, and a back panel assembly 6. The cover plate 4 is disposed on the side of the polarizer 2 facing away from the display panel 1. The first optical adhesive layer 5 connects the cover plate 4 and the polarizer 2. The back panel assembly 6 is disposed on the back side of the display panel 1.

[0039] To improve the resistance to compression at the edges of the foldable display module 100, it needs to be cut after the foldable display module 100 is laminated to ensure that the edges of the foldable display module 100 are neat. After the foldable display module 100 is cut, the edge of the hardened coating 3 is flush with the edge of the display panel 1, which improves the resistance to compression at the edges of the foldable display module 100. At the same time, since the edge of the hardened coating 3 is flush with the edge of the display panel 1 after the foldable display module 100 is cut, the peripheral side 2a of the polarizer 2 is still covered with the hardened coating 3. Therefore, it can prevent moisture from penetrating from the peripheral side 2a of the polarizer 2, thereby preventing sweat from corroding the polarizer 2, solving the problem of fading at the edges of the polarizer 2 caused by sweat corrosion, and thus improving the weather resistance of the foldable display module 100.

[0040] Please see Figure 4 and Figure 5 Before attaching the polarizer 2 to the display panel 1, the polarizer 2 also includes release films 25 located on both sides of the polarizer 2. When attaching the polarizer 2 to the display panel 1, the release films 25 are peeled off from the polarizer 2. At the same time, at the position corresponding to the edge of the folding display module 100, the hardened coating 3 has sufficient cutting space. After cutting the edge of the folding display module 100, the width W of the hardened coating 3 is set to 0.5mm to 1mm in the direction away from the peripheral side 2a of the polarizer 2. In this way, while ensuring the edge of the folding display module 100 is neat, the effect of the hardened coating 3 in blocking sweat can be improved.

[0041] It should be noted that this application does not impose specific limitations on the structure of the cover plate 4. The cover plate 4 comprises two parts: a main body and a protective layer. The main body can be set as UTG (Ultra-Thin Glass), PET (Polyethylene Terephthalate), or PW (Protective Window), or CWO (Chemically Weakened Oxide). The material of the protective layer includes, but is not limited to, PET (polyethylene glycol terephthalate) and CPI (Colorless Polyimide).

[0042] Similarly, this application does not impose specific limitations on the structure of the back panel assembly 6. The back panel assembly 6 includes a back panel 61 and a buffer support layer 62; the back panel 61 is disposed on the back side of the display panel 1; the buffer support layer 62 is disposed on the side of the back panel 61 opposite to the display panel 1; the buffer support layer 62 includes, but is not limited to, BFL / SUS, BFL / Ti alloy, or BFL / carbon fiber.

[0043] Please see Figures 3 to 5 In the first embodiment of this application, the polarizer 2 is disposed on the light-emitting side of the display panel 1. The edge of the polarizer 2 is recessed relative to the edge of the display panel 1. In the direction away from the display panel 1, the polarizer 2 includes a polarizing layer 21, a protective layer 22, and a hardening layer 23 stacked together. The hardening layer 23 includes a first protective section 31, which covers the peripheral side surface 2a of the polarizer 2. This can prevent moisture from invading from the peripheral side surface 2a of the polarizer 2, thereby preventing sweat from eroding the polarizer 2 and solving the problem of fading at the edge of the polarizer 2 caused by sweat erosion.

[0044] Please see Figures 6 to 8In the second embodiment of this application, the polarizer 2 is disposed on the light-emitting side of the display panel 1. The edge of the polarizer 2 is recessed relative to the edge of the display panel 1. In the direction away from the display panel 1, the polarizer 2 includes a polarizing layer 21, a protective layer 22, and a hardening layer 23 stacked together. The polarizer 2 has a first surface 2b away from the display panel 1. The hardening layer 3 includes a first protective segment 31 and a second protective segment 32. The first protective segment 31 is disposed around the periphery of the second protective segment 32. 2. The first surface 2b of the polarizer 2 is covered, and the first protective segment 31 covers the peripheral side 2a of the polarizer 2; wherein, the first surface 2b includes the side surface of the hardened layer 23 facing away from the protective layer 22; by setting the first protective segment 31 and the second protective segment 32, the ability of the hardened coating 3 to wrap the polarizer 2 is improved, which can further prevent moisture from invading from the peripheral side 2a of the polarizer 2, thereby further preventing sweat from eroding the polarizer 2, and thus solving the problem of edge fading of the polarizer 2 caused by sweat erosion.

[0045] As can be seen from the first and second embodiments of this application, the hardening coating 3 is disposed on the outer side of the polarizer 2. It is understood that since the hardening coating 3 at least covers the peripheral side surface 2a of the polarizer 2, the hardening coating 3 cannot be applied to the large roll of raw material for the polarizer 2. Instead, the large roll of raw material for the polarizer 2 must be cut into small pieces of polarizer 2 according to the size of the display panel 1, and then the hardening coating 3 is applied to the cut pieces of polarizer 2. Disposing the hardening coating 3 on the outer side of the polarizer 2 simplifies the coating process.

[0046] This application does not impose specific limitations on the formation method of the hardened coating 3. The hardened coating 3 can be configured as an ultra-thin hardened coating; the hardened coating 3 can be obtained by spraying or coating.

[0047] This application does not impose specific limitations on the material of the hardened coating 3. The material of the hardened coating 3 includes, but is not limited to, polyurethane or polyacrylate. Using polyurethane or polyacrylate to form the hardened coating 3 has the advantages of good water-blocking properties. Furthermore, by adjusting the curing process of the hardened coating 3, different elastic moduli can be achieved, thereby meeting different product requirements.

[0048] The following example illustrates the process: “The hardened coating 3 includes a first protective section 31 and a second protective section 32, wherein the first protective section 31 covers the peripheral side surface 2a of the polarizer 2 and the second protective section 32 covers the first surface 2b of the polarizer 2.”

[0049] A coating material is prepared using polyurethane or polyacrylate as the main material; the coating material is applied to the first surface 2b and peripheral side surface 2a of the polarizer 2 to form a hardened coating; the hardened coating is UV cured to form the hardened coating 3.

[0050] To ensure that the hardened coating 3 completely covers the first surface 2b and peripheral side surface 2a of the polarizer 2, the thickness T of the hardened coating 3 is set to 3μm to 5μm in the thickness direction of the folded display module 100. At the same time, the hardened coating 3 is formed by UV curing. Setting the thickness T of the hardened coating 3 to 3μm to 5μm can ensure that the hardened coating 3 is fully cured.

[0051] Furthermore, the polarizer 2 also includes an adhesive layer 24; the adhesive layer 24 is used not only to bond the various film layers of the polarizer 2, but also to attach the polarizer 2 to the light-emitting side of the display panel 1. Based on the structure and manufacturing process of the polarizer 2, the polarizer 2 will shrink when heated. By setting the thermal shrinkage rate of the hardened coating 3 to be the same as that of the polarizer 2, the hardened coating 3 can shrink synchronously when the polarizer 2 is heated, thereby allowing the hardened coating 3 to wrap around the first surface 2b and the peripheral side surface 2a of the polarizer 2, thus ensuring the strength of the hardened coating 3.

[0052] As described above, the polarizer 2 further includes an adhesive layer 24; the adhesive layer 24 is used not only to bond the various film layers of the polarizer 2, but also to attach the polarizer 2 to the light-emitting side of the display panel 1. To further prevent moisture from intruding from the peripheral side 2a of the polarizer 2, the folding display module 100 further includes a first adhesive layer 7, which is disposed on the side of the hardened coating 3 facing the display panel 1, connecting the hardened coating 3 and the display panel 1. By providing the first adhesive layer 7, on the one hand, the hardened coating 3 and the display panel 1 are connected, thereby improving the bonding strength between the polarizer assembly 2 and the display panel 1; on the other hand, the first adhesive layer 7 seals the hardened coating 3 and the display panel 1, further preventing moisture from intruding from the peripheral side 2a of the polarizer 2.

[0053] In one embodiment of this application, the elastic modulus of the hardened coating 3 is greater than that of the hardened layer 23.

[0054] Taking "the hardened coating 3 includes a first protective section 31, which covers the peripheral side surface 2a of the polarizer 2" as an example, the elastic modulus of the hardened coating 3 is greater than that of the hardened layer 23. When subjected to impact, the hardened coating 3 has a smaller elastic deformation, so the hardened coating 3 provides better support for the cover plate 4, thereby improving the resistance of the folding display module 100 to compression at its edges.

[0055] The following example illustrates the process: “The hardened coating 3 includes a first protective section 31 and a second protective section 32, wherein the first protective section 31 covers the peripheral side surface 2a of the polarizer 2 and the second protective section 32 covers the first surface 2b of the polarizer 2.”

[0056] It is known that in the foldable display module 100, since most of the film material is a polymer material, the front impact resistance of the foldable display module 100 is poor; when the front of the foldable display module 100 is squeezed by foreign objects or impacted by external forces, the display panel 1 is very likely to produce bright spots or black spots due to local deformation.

[0057] The elastic modulus of the hardened coating 3 is set to be greater than that of the hardened layer 23. That is, the elastic modulus of the first protective section 31 and the second protective section 32 are both greater than that of the hardened layer 23. The first protective section 31 provides better support for the cover plate 4, thereby improving the resistance of the foldable display module 100 to compression at its edges. The second protective section 32 covers the first surface 2b of the polarizer 2, and the elastic modulus of the second protective section 32 is greater than that of the hardened layer 23. In this way, the front impact resistance of the foldable display module 100 can be significantly improved. When the foldable display module 100 is subjected to foreign object compression or external force impact, the display panel 1 can be prevented from producing bright spots or black spots due to compression and impact.

[0058] Meanwhile, the elastic modulus of the first protective segment 31 is set to be greater than that of the second protective segment 32; that is, the first protective segment 31 has the largest elastic modulus on the hardened coating 3. When subjected to compression and impact, the first protective segment 31 can provide greater support force, which can not only improve the compression resistance of the folding display module 100 at its edge, but also improve the stability of the first protective segment 31 covering the peripheral side 2a of the polarizer 2, and further prevent moisture from invading from the peripheral side 2a of the polarizer 2.

[0059] In one embodiment of this application, the folding display module 100 has two flat areas A and a bending area B connecting the two flat areas A; the elastic modulus of the second protective segment 32 at the position of the flat area A is greater than its elastic modulus at the position of the bending area B.

[0060] The elastic modulus at position A of the flattened area is greater than that at position B of the bending area. When subjected to compression and impact, the elastic deformation of the second protective segment 32 at position A of the flattened area is smaller, which is beneficial to improving the mechanical performance and impact performance of the foldable display module 100 on the front. The second protective segment 32 has a larger elastic deformation at position B of the bending area, and the second protective segment 32 has better flexibility at position B of the bending area, making it easier to bend and ensuring the folding performance of the foldable display module 100.

[0061] This application does not impose specific limitations on the formation method of the hardened coating 3 having different elastic moduli in certain areas. It can be to set different thicknesses, use different processes, or set special structures.

[0062] It is understandable that hardness and elastic modulus are two important mechanical property indicators in materials science, reflecting the response characteristics of materials under different loading conditions. Hardness is a material's ability to resist localized plastic deformation; elastic modulus is a material's ability to resist deformation within its elastic range. Generally, materials with higher hardness also have higher elastic modulus because both hardness and elastic modulus are related to the interatomic bonding force of the material. The stronger the interatomic bonding force, the stronger the material's resistance to deformation, thus resulting in higher hardness and elastic modulus. In other words, the elastic modulus of the hardened coating 3 can be regionalized by adjusting the hardness of localized areas on the hardened coating 3.

[0063] Based on the above embodiment of "using polyurethane or polyacrylate as the main material to make a coating material; applying the coating material to the first surface 2b and peripheral surface 2a of the polarizer 2 to form a coating layer; and UV curing the coating to form the hardened coating 3", after applying the coating to the first surface 2b and peripheral surface 2a of the polarizer 2, the first protective segment 31 and the second protective segment 32 are cured in sections using a mask. The first protective segment 31 has the highest degree of curing, and in the second protective segment 32, the degree of curing at the position corresponding to the flat area A is the second highest, and the degree of curing at the position corresponding to the bending area B is the lowest; thus, the hardness of the first protective segment 31 is greater than the hardness of the second protective segment 32; and on the second protective segment 32, the hardness at the position corresponding to the flat area A is greater than the hardness at the position corresponding to the bending area B.

[0064] In other words, by curing different degrees of local areas of the hardened coating 3, the local areas of the hardened coating 3 have different hardnesses. As a result, the hardened coating 3 has good water resistance and good support properties, and at the position corresponding to the bending area B, it has good flexibility and is easier to bend, which can ensure the folding performance of the folding display module 100.

[0065] In addition, to further reduce the third elastic modulus of the second protective segment 32 at the bending zone B, please refer to... Figure 9 The second protective segment 32 is hollowed out at the position corresponding to the bending area B. By hollowing out the second protective segment 32 at the position corresponding to the bending area B, the second protective segment 32 is more likely to deform at the bending area B, which is more conducive to the release of bending stress of the folding display module 100.

[0066] Furthermore, at the position corresponding to the bending area B, the second protective segment 32 can be provided with a mesh structure 33, or it can be provided with a hollow structure of other shapes, as long as it can reduce the third elastic modulus of the second protective segment 32 at the bending area B.

[0067] Secondly, this application provides a display device including a foldable display module 100. It should be noted that the foldable display module 100 is configured as described above, meaning it includes all the technical features of the aforementioned foldable display module 100. The display device encompasses all embodiments of the aforementioned foldable display module 100, and thus possesses all the technical effects of the aforementioned embodiments; further details are omitted here.

[0068] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0069] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0070] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0071] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A foldable display module, characterized in that, include: Display panel; as well as, A polarizer is disposed on the light-emitting side of the display panel. The edge of the polarizer is recessed relative to the edge of the display panel. In the direction away from the display panel, the polarizer includes at least a polarizing layer, a protective layer, and a hardening layer stacked together. A hardened coating is disposed on the light-emitting side of the display panel, the hardened coating at least covers the peripheral side surface of the polarizer, and the edge of the hardened coating is flush with the edge of the display panel; The hardening coating and the hardening layer are separately provided; The polarizer has a first surface that is opposite to the display panel; The hardened coating includes a first protective section and a second protective section. The first protective section is arranged around the periphery of the second protective section. The second protective section covers the first surface of the polarizer, and the first protective section covers the periphery of the polarizer. The first surface includes the side of the hardened layer that faces away from the protective layer; The foldable display module has two flat areas and a folded area connecting the two flat areas; The elastic modulus of the second protective segment at the flattened area is greater than that at the bending area. The curing degree of the first protective segment is greater than that of the second protective segment; in the second protective segment, the curing degree of the position corresponding to the flat area is greater than that of the position corresponding to the bending area, so that the hardness of the first protective segment is greater than that of the second protective segment, and the hardness of the position corresponding to the flat area of ​​the second protective segment is greater than that of the position corresponding to the bending area.

2. The foldable display module as described in claim 1, characterized in that, The elastic modulus of the hardened coating is greater than that of the hardened layer.

3. The foldable display module as described in claim 1, characterized in that, The elastic modulus of the first protection segment is greater than that of the second protection segment.

4. The foldable display module as described in claim 1, characterized in that, The second protective section is hollowed out and forms a mesh structure at the position corresponding to the bending area.

5. The foldable display module as described in claim 1, characterized in that, The foldable display module further includes a first adhesive layer, which is disposed on the side of the hardened coating facing the display panel, and the first adhesive layer connects the hardened coating and the display panel.

6. The foldable display module as described in claim 1, characterized in that, The thermal shrinkage rate of the hardened coating is the same as that of the polarizer.

7. The foldable display module as described in claim 1, characterized in that, The material of the hardened coating includes at least polyurethane or polyacrylate.

8. A display device, characterized in that, Includes the foldable display module as described in any one of claims 1-7.

Images