Supporting member, display module and display device

Abstract

Disclosed are a support, a display module and a display device. The support comprises a first support layer, a second support layer, a third support layer and at least one impact-resistant film layer. The first support layer, the second support layer and the third support layer are sequentially stacked. The first support layer, the second support layer and the third support layer are respectively composed of carbon fiber material and a first resin material. The impact-resistant film layer is prepared from a second resin material. The second resin material and the first resin material are homologous resin materials. The support comprises three basic support layers, i.e. the first support layer, the second support layer and the third support layer, and the impact-resistant film layer is introduced into the support. Therefore, the impact-resistant film layer can improve the impact performance and bending stiffness of the support as a whole, and improve the bending performance of the support, so as to meet the increasing support requirements of flexible OLED modules.

Description

Technical Field

[0001] This disclosure belongs to the field of display device technology, and particularly relates to a support member, a display module, and a display device. Background Technology

[0002] In related technologies, the commonly used support component in flexible organic light-emitting diode (OLED) display modules is a composite of polyimide (PI) double-sided adhesive and carbon fiber sheet. However, because carbon fiber sheet is anisotropic, the support component has low bending stiffness, poor impact resistance, and poor bending performance, which cannot meet the increasingly demanding support requirements of flexible OLED modules.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] This disclosure aims to at least partially address the technical problems of support members having low bending stiffness, poor impact resistance, and poor bending performance, which fail to meet the increasingly demanding support requirements of flexible OLED modules. To this end, this disclosure provides a support member, a display module, and a display device.

[0005] This disclosure provides a support member comprising a first support layer, a second support layer, a third support layer, and at least one impact-resistant membrane layer. The first support layer, the second support layer, and the third support layer are sequentially stacked, and the first support layer, the second support layer, and the third support layer are respectively composed of carbon fiber material and a first resin material. The impact-resistant membrane layer is made of a second resin material, which is homologous to the first resin material. The impact-resistant membrane layer is located on the side of the first support layer away from the second support layer; and / or, the impact-resistant membrane layer is located between the first support layer and the second support layer; and / or, the impact-resistant membrane layer is located between the second support layer and the third support layer; and / or, the impact-resistant membrane layer is located on the side of the third support layer away from the second support layer.

[0006] In some embodiments, the tensile strength of the first resin material is greater than that of the second resin material, the tensile modulus of the first resin material is greater than that of the second resin material, and the elongation at break of the second resin material is greater than that of the first resin material.

[0007] In some embodiments, the tensile strength of the first resin material is 1.75 to 12.00 times that of the second resin material; the tensile modulus of the first resin material is 500.00 to 1200.00 times that of the second resin material; and the elongation at break of the second resin material is 20.00 to 200.00 times that of the first resin material.

[0008] In some embodiments, the tensile strength of the second resin material is 9.00 MPa to 40.00 MPa, the tensile modulus of the second resin material is 3.00 MPa to 5.00 MPa, and the elongation at break of the second resin material is 200% to 400%.

[0009] In some embodiments, the tensile strength of the first resin material is 70 MPa to 100 MPa, the tensile modulus of the first resin material is 2500 MPa to 3500 MPa, and the elongation at break of the first resin material is 2% to 10%.

[0010] In some embodiments, the thickness of the impact-resistant membrane is 10 μm to 200 μm.

[0011] In some embodiments, the thickness of the impact-resistant membrane is 50 μm to 200 μm.

[0012] In some embodiments, the first resin material is selected from any one of epoxy resin, polyurethane resin, bismaleimide resin, and polyimide resin.

[0013] In some embodiments, the carbon fiber material in the first support layer, the carbon fiber material in the second support layer, and the carbon fiber material in the third support layer are each independently selected from any one or more of T700 carbon fiber, T800 carbon fiber, T1000 carbon fiber, M40 carbon fiber, M46 carbon fiber, M55 carbon fiber, and M60 carbon fiber.

[0014] In some embodiments, the content of the first resin material in the first support layer is greater than the content of the first resin material in the second support layer; and / or, the content of the first resin material in the third support layer is greater than the content of the first resin material in the second support layer.

[0015] In some embodiments, the content of the first resin material in the first support layer is 25% to 50%, and / or the content of the first resin material in the second support layer is 25% to 50%, and / or the content of the first resin material in the third support layer is 25% to 50%.

[0016] In some embodiments, the basis weight of the carbon fiber material in the first support layer is 15 g / m². 2 ~40g / m 2 ; and / or, the basis weight of the carbon fiber material in the second support layer is 50 g / m². 2 ~150g / m 2 ; and / or, the basis weight of the carbon fiber material in the third support layer is 15 g / m². 2 ~40g / m 2 .

[0017] This disclosure also proposes a display module, which includes the aforementioned support member.

[0018] This disclosure also proposes a display device comprising the display module described above.

[0019] The embodiments disclosed herein have at least the following beneficial effects:

[0020] The aforementioned support component comprises three basic support layers: a first support layer, a second support layer, and a third support layer. An impact-resistant film layer is introduced into the support component to enhance its overall impact resistance and bending stiffness, thereby improving its bending performance and meeting the increasing support requirements of flexible OLED modules. Simultaneously, the first, second, and third support layers are respectively composed of carbon fiber and a first resin material; the impact-resistant film layer is made of a second resin material, which is homologous to the first resin material. The impact-resistant film layer can be simultaneously laminated with the first, second, and third support layers into the support component via a hot-pressing process. This reduces the number of module bonding steps, improves manufacturing efficiency, and ensures interlayer bonding between the impact-resistant film layer and adjacent support layers, mitigating the risk of delamination after multiple bends. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A cross-sectional view of a support member according to an embodiment of the present disclosure is shown;

[0023] Figure 2 A cross-sectional view of a support member according to another embodiment of this disclosure is shown;

[0024] Figure 3A cross-sectional view of a support member according to another embodiment of this disclosure is shown;

[0025] Figure 4 A cross-sectional view of a support member according to another embodiment of this disclosure is shown;

[0026] Figure 5 A cross-sectional view of a support member according to another embodiment of this disclosure is shown;

[0027] Figure 6 A cross-sectional view of a support member according to another embodiment of this disclosure is shown;

[0028] Figure 7 A cross-sectional view of a support member according to another embodiment of this disclosure is shown;

[0029] Figure 8 A cross-sectional view of a support member according to another embodiment of this disclosure is shown;

[0030] Figure 9 A cross-sectional view of a support member according to another embodiment of this disclosure is shown;

[0031] Figure 10 A cross-sectional view of a support member according to another embodiment of this disclosure is shown;

[0032] Figure 11 A cross-sectional view of a support member according to another embodiment of this disclosure is shown;

[0033] Figure 12 A cross-sectional view of a support member according to another embodiment of this disclosure is shown;

[0034] Figure 13 A cross-sectional view of a support member according to another embodiment of this disclosure is shown;

[0035] Figure 14 A cross-sectional view of a support member according to another embodiment of this disclosure is shown.

[0036] Figure label:

[0037] 100, First support layer; 200, Second support layer; 300, Third support layer; 400, Impact-resistant membrane layer. Detailed Implementation

[0038] The technical solutions of the embodiments of this disclosure 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 disclosure, and not all of them. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0039] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this disclosure. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this disclosure provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0040] This disclosure is described below with reference to the accompanying drawings and specific embodiments:

[0041] In related technologies, the commonly used support component in flexible OLED modules employs a composite of PI double-sided adhesive and carbon fiber sheet. However, because carbon fiber sheet contains fibrous material and is anisotropic, its mechanical properties differ in different directions, with significant variations in tensile modulus. For example, the tensile modulus of the carbon fiber sheet in the 0° direction (parallel to the extension direction of the carbon fiber material) is 150 MPa, while its tensile modulus in the 90° direction (perpendicular to the extension direction of the carbon fiber material) is 250 MPa. This results in low bending stiffness, poor impact resistance, and poor bending performance of the support component, failing to meet the increasingly demanding support requirements of flexible OLED modules. For instance, although M-series carbon fiber sheets with higher tensile modulus are used in related technologies, their bending stiffness remains low, indicating that increasing the tensile modulus of the carbon fiber sheet does not significantly improve the overall bending stiffness of the support component.

[0042] To address the technical problem that polyimide-carbon fiber composite support components have low bending stiffness and poor impact resistance, resulting in poor bending performance and failing to meet the increasingly demanding support requirements of flexible OLED modules, this disclosure proposes a support component, such as... Figures 1 to 4 As shown, the support includes a first support layer 100, a second support layer 200, a third support layer 300, and at least one impact-resistant membrane layer 400. The first support layer 100, the second support layer 200, and the third support layer 300 are stacked sequentially. The first support layer 100, the second support layer 200, and the third support layer 300 are respectively composed of carbon fiber material and a first resin material. The impact-resistant membrane layer 400 is made of a second resin material, which is homologous to the first resin material. The impact-resistant membrane layer 400 is located on the side of the first support layer 100 away from the second support layer 200; and / or, the impact-resistant membrane layer 400 is located between the first support layer 100 and the second support layer 200; and / or, the impact-resistant membrane layer 400 is located between the second support layer 200 and the third support layer 300; and / or, the impact-resistant membrane layer 400 is located on the side of the third support layer 300 away from the second support layer 200.

[0043] The support component of this embodiment includes three basic support layers: a first support layer 100, a second support layer 200, and a third support layer 300. An impact-resistant film layer 400 is introduced into the support component to improve its overall impact resistance and bending stiffness, thereby enhancing its bending performance and meeting the increasing support requirements of flexible OLED modules. The first support layer 100, the second support layer 200, and the third support layer 300 are respectively composed of carbon fiber material and a first resin material; the impact-resistant film layer 400 is made of a second resin material, which is homologous to the first resin material. The impact-resistant film layer 400 can be simultaneously laminated with the first support layer 100, the second support layer 200, and the third support layer 300 into the support component via a hot-pressing process. This reduces the number of module bonding steps, improves manufacturing efficiency, and ensures the interlayer bonding strength between the impact-resistant film layer 400 and adjacent support layers, thus mitigating the risk of delamination after multiple bends. Furthermore, compared to related technologies, by introducing an impact-resistant film layer 400 into the support, the bending stiffness and impact resistance of the support can be significantly improved. Therefore, under the premise of ensuring that the support can meet the requirements of bending stiffness and impact resistance, the thickness of some support layers in the support can be appropriately reduced, thereby reducing the overall thickness of the support and consequently reducing the thickness of the display module using the support.

[0044] In some embodiments of this disclosure, the support member can be manufactured using the following methods:

[0045] Carbon fiber prepregs are provided for the first support layer 100, the second support layer 200 and the third support layer 300, that is, carbon fiber prepregs are obtained by prepregs of the corresponding first resin material for each support layer.

[0046] Provides an impact-resistant membrane layer of 400;

[0047] The carbon fiber prepreg and impact-resistant membrane 400 of each support layer are laid in the mold according to the preset interlayer structure, and then heated and pressure-cured under certain temperature and pressure conditions to obtain the above support component.

[0048] In some embodiments of this disclosure, optionally, such as Figures 1 to 4 As shown, the support member may have only one impact-resistant membrane layer 400. For example... Figure 1 As shown, the impact-resistant membrane layer 400 can be located on the side of the first support layer 100 away from the second support layer 200; as Figure 2 As shown, the impact-resistant membrane layer 400 can be located between the first support layer 100 and the second support layer 200; as Figure 3 As shown, the impact-resistant membrane layer 400 can be located between the second support layer 200 and the third support layer 300; as Figure 4 As shown, the impact-resistant membrane layer 400 can be located on the side of the third support layer 300 away from the second support layer 200. In these embodiments, by providing only one layer of impact-resistant membrane layer 400, the impact resistance and bending stiffness of the support can be significantly improved, thereby enhancing the bending performance of the support.

[0049] In some embodiments of this disclosure, optionally, such as Figures 5 to 9 As shown, the support member can be provided with two impact-resistant membrane layers 400. For example... Figure 5 As shown, the two impact-resistant membrane layers 400 can be respectively disposed on the side of the first support layer 100 away from the second support layer 200, and between the first support layer 100 and the second support layer 200. Figure 6 As shown, the two impact-resistant membrane layers 400 can be respectively disposed on the side of the first support layer 100 away from the second support layer 200, and between the second support layer 200 and the third support layer 300. For example... Figure 7 As shown, the two impact-resistant membrane layers 400 can be respectively disposed on the side of the first support layer 100 away from the second support layer 200, and on the side of the third support layer 300 away from the second support layer 200. For example... Figure 8 As shown, the two impact-resistant membrane layers 400 can be respectively disposed between the first support layer 100 and the second support layer 200, and between the second support layer 200 and the third support layer 300. For example... Figure 9 As shown, the two impact-resistant membrane layers 400 can be respectively disposed between the first support layer 100 and the second support layer 200, and on the side of the third support layer 300 away from the second support layer 200. In these embodiments, by providing two impact-resistant membrane layers 400, the impact resistance and bending stiffness of the support can be significantly improved, and the bending performance of the support can be enhanced.

[0050] In some embodiments of this disclosure, optionally, such as Figures 10 to 13 As shown, the support member may also be provided with three impact-resistant membrane layers 400. For example... Figure 10 As shown, the three impact-resistant membrane layers 400 can be respectively disposed on the side of the first support layer 100 away from the second support layer 200, between the first support layer 100 and the second support layer 200, and between the second support layer 200 and the third support layer 300. Figure 11 As shown, the three impact-resistant membrane layers 400 can be respectively disposed on the side of the first support layer 100 away from the second support layer 200, between the first support layer 100 and the second support layer 200, and on the side of the third support layer 300 away from the second support layer 200. Figure 12 As shown, the three impact-resistant membrane layers 400 can be respectively disposed on the side of the first support layer 100 away from the second support layer 200, between the second support layer 200 and the third support layer 300, and on the side of the third support layer 300 away from the second support layer 200. Figure 13As shown, the three impact-resistant membrane layers 400 can be respectively disposed between the first support layer 100 and the second support layer 200, between the second support layer 200 and the third support layer 300, and on the side of the third support layer 300 away from the second support layer 200. In these embodiments, by providing the three impact-resistant membrane layers 400, the impact resistance and bending stiffness of the support member can be significantly improved, and the bending performance of the support member can be enhanced.

[0051] In some embodiments of this disclosure, optionally, such as Figure 14 As shown, the support member may also include four impact-resistant membrane layers 400. These four impact-resistant membrane layers 400 may be respectively disposed on the side of the first support layer 100 away from the second support layer 200, between the first support layer 100 and the second support layer 200, between the second support layer 200 and the third support layer 300, and on the side of the third support layer 300 away from the second support layer 200. In these embodiments, by providing three impact-resistant membrane layers 400, the impact resistance and bending stiffness of the support member can be significantly improved, thus enhancing its bending performance.

[0052] In the above embodiments of this disclosure, when the impact-resistant film layer 400 is disposed between two adjacent support layers, the interlayer bonding force between the support layers can be improved; when the impact-resistant film layer 400 is located on the surface of the support member, that is, when the impact-resistant film layer 400 can be located on the side of the first support layer 100 away from the second support layer 200 and / or on the side of the third support layer 300 away from the second support layer 200, the surface flatness of the support member can be improved, making it easier for the support member to be bonded to the display module through this side, so as to ensure that there is sufficient bonding force between the support member and the display module.

[0053] In some embodiments of this disclosure, the first resin material in the first support layer 100, the first resin material in the second support layer 200, and the first resin material in the third support layer 300 are homologous resin materials. However, the specific types of the three materials may be the same, or any two of them may be of the same type, or all three materials may be of different types.

[0054] In some embodiments of this disclosure, the carbon fiber material in the first support layer 100, the carbon fiber material in the second support layer 200, and the carbon fiber material in the third support layer 300 may be the same, any two of them may be the same, or all three may be different.

[0055] As an optional implementation, the tensile strength of the first resin material is greater than that of the second resin material, the tensile modulus of the first resin material is greater than that of the second resin material, and the elongation at break of the second resin material is greater than that of the first resin material.

[0056] In some embodiments of this disclosure, the first support layer 100, the second support layer 200, and the third support layer 300 are respectively composed of carbon fiber material and a first resin material. The first resin material acts as a binder in each support layer, bonding adjacent support layers together. Simultaneously, the first resin material plays a crucial role in structural strength, fiber protection, and formability, and can improve the tensile strength and tensile modulus of each support layer to a certain extent.

[0057] In some embodiments of this disclosure, although the first resin material and the second resin material are homologous resin materials, they are of different specific types. Furthermore, the first resin material has a higher tensile strength, a higher tensile modulus, and a higher elongation at break than the second resin material. By ensuring that the tensile strength and tensile modulus of the first resin material are greater than those of the second resin material, the tensile strength and tensile modulus of each support layer can be ensured by using the first resin material with relatively high tensile strength and tensile modulus, thereby ensuring the overall tensile strength and tensile modulus of the support member. Simultaneously, the elongation at break of the second resin material is greater than that of the first resin material. Therefore, the impact-resistant film layer 400 prepared from the second resin material has a relatively large elongation at break. This allows the impact-resistant film layer 400 with a relatively large elongation at break to not only improve the energy absorption rate of the support member but also enhance its bending stiffness, thereby improving the overall impact resistance and bending stiffness of the support member. Meanwhile, since the second resin material and the first resin material are homologous, during the hot-pressing process of bonding the various support layers and the impact-resistant film layer 400 to the support component, the second resin material and the first resin material can cross-link during the hot-pressing process. This improves the mechanical properties of the support layer adjacent to the impact-resistant film layer 400 and increases the elongation at break of the support layer adjacent to the impact-resistant film layer 400. Through the synergistic effect of the tensile strength, tensile modulus, and elongation at break of the first and second resin materials, the overall tensile strength, tensile modulus, and elongation at break of the support component can be improved to a certain extent, enabling the support component to better meet the increasingly demanding support requirements of flexible OLED modules.

[0058] As an optional embodiment, the tensile strength of the first resin material is 1.75 to 12.00 times that of the second resin material; the tensile modulus of the first resin material is 500.00 to 1200.00 times that of the second resin material; and the elongation at break of the second resin material is 20.00 to 200.00 times that of the first resin material.

[0059] In some embodiments of this disclosure, the tensile strength of the first resin material is 1.75 to 12.00 times that of the second resin material, and the tensile modulus of the first resin material is 500 to 1200.00 times that of the second resin material. This ensures that the first resin material has higher tensile strength and tensile modulus than the second resin material, thereby ensuring that each support layer has greater tensile strength and tensile modulus through the first resin material. Simultaneously, the elongation at break of the second resin material is 20 to 200.00 times that of the first resin material. This ensures that the second resin material has higher elongation at break than the first resin material, meaning that the second resin material has better elasticity and impact resistance. This ensures that the impact-resistant film layer 400 prepared from the second resin material has higher impact resistance and energy absorption rate. After the impact-resistant film layer 400 and each support layer are hot-pressed to form a support member, the bending stiffness and impact resistance of the support member are comprehensively improved. By controlling the tensile strength, tensile modulus, and elongation at break of the first and second resin materials, the bending stiffness and impact resistance of the support can be comprehensively improved, so that the support can better meet the increasing support requirements of flexible OLED modules.

[0060] In some embodiments of this disclosure, exemplarily, the tensile strength of the first resin material can be 1.75 times, 2.00 times, 3.00 times, 4.00 times, 5.00 times, 6.00 times, 7.00 times, 8.00 times, 9.00 times, 10.00 times, 11.00 times, 12.00 times, etc., the tensile modulus of the first resin material can be 500.00 times, 550.00 times, 600.00 times, 650.00 times, 700.00 times, 750.00 times, 800.00 times, 850.00 times, 900.00 times, 950.00 times, or 1000.00 times the tensile modulus of the second resin material. The elongation at break of the second resin material can be 20.00 times, 30.00 times, 40.00 times, 50.00 times, 60.00 times, 70.00 times, 80.00 times, 90.00 times, 100.00 times, 110.00 times, 120.00 times, 130.00 times, 140.00 times, 150.00 times, 160.00 times, 170.00 times, 180.00 times, 1930.00 times, 200.00 times, etc., whichever is greater; those skilled in the art can set it according to actual needs.

[0061] As an optional embodiment, the tensile strength of the second resin material is 9.00 MPa to 40.00 MPa, the tensile modulus of the second resin material is 3.00 MPa to 5.00 MPa, and the elongation at break of the second resin material is 200% to 400%.

[0062] In some embodiments of this disclosure, by making the tensile strength of the second resin material 9.00 MPa to 40.00 MPa, the tensile modulus of the second resin material 3.00 MPa to 5.00 MPa, and the elongation at break of the second resin material 200% to 400%, the elongation at break of the impact-resistant film layer 400 prepared from the second resin material can be made to be larger, which can significantly improve the impact resistance of the impact-resistant film layer 400. After the impact-resistant film layer 400 and each support layer are processed by hot pressing to form a support member, the bending stiffness and impact resistance of the support member can be comprehensively improved.

[0063] In some embodiments of this disclosure, the tensile strength of the second resin material can be, exemplarily, 9.00 MPa, 10.00 MPa, 11.00 MPa, 12.00 MPa, 13.00 MPa, 14.00 MPa, 15.00 MPa, 16.00 MPa, 17.00 MPa, 18.00 MPa, 19.00 MPa, 20.00 MPa, 21.00 MPa, 22.00 MPa, 23.00 MPa, 24.00 MPa, 25.00 MPa, 26.00 MPa, 27.00 MPa, 28.00 MPa, 29.00 MPa, 30.00 MPa, or 31.00 MPa. The tensile modulus of the second resin material can be 3.00 MPa, 32.00 MPa, 33.00 MPa, 34.00 MPa, 35.00 MPa, 36.00 MPa, 37.00 MPa, 38.00 MPa, 39.00 MPa, 40.00 MPa, etc.; the tensile modulus of the second resin material can be 3.00 MPa, 3.50 MPa, 4.00 MPa, 4.50 MPa, 5.00 MPa, etc.; the elongation at break of the second resin material can be 200%, 220%, 240%, 260%, 280%, 300%, 320%, 340%, 360%, 380%, 400%, etc.; those skilled in the art can set these values ​​according to actual needs.

[0064] As an optional embodiment, the tensile strength of the first resin material is 70MPa to 100MPa, the tensile modulus of the first resin material is 2500MPa to 3500MPa, and the elongation at break of the first resin material is 2% to 10%.

[0065] In some embodiments of this disclosure, by making the tensile strength of the first resin material 70MPa to 100MPa, the tensile modulus of the first resin material 2500MPa to 3500MPa, and the elongation at break of the first resin material 2% to 10%, the tensile strength and tensile modulus of each support layer composed of carbon fiber material and first resin material can be made larger, which can ensure that each support layer has a large tensile strength and tensile modulus, thereby making the overall bending stiffness of the support member larger.

[0066] In some embodiments of this disclosure, exemplarily, the tensile strength of the first resin material can be 70 MPa, 72 MPa, 74 MPa, 76 MPa, 78 MPa, 80 MPa, 82 MPa, 84 MPa, 86 MPa, 88 MPa, 90 MPa, 92 MPa, 94 MPa, 96 MPa, 98 MPa, 100 MPa, etc.; the tensile modulus of the first resin material can be 2500 MPa, 2600 MPa, 2700 MPa, 2800 MPa, 2900 MPa, 3000 MPa, 3100 MPa, 3200 MPa, 3300 MPa, 3400 MPa, 3500 MPa, etc.; the elongation at break of the first resin material can be 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, etc.; those skilled in the art can set these values ​​according to actual needs.

[0067] As an optional embodiment, the thickness of the impact-resistant film 400 is 10 μm to 200 μm. More optionally, the thickness of the impact-resistant film 400 is 50 μm to 200 μm.

[0068] In some embodiments of this disclosure, by making the thickness of the impact-resistant film layer 400 10μm to 200μm, the support member can have high impact resistance and high bending stiffness. Furthermore, this disclosure has found that the thicker the impact-resistant film layer 400, the higher the impact resistance and bending stiffness of the support member. However, the thickness of the impact-resistant film layer 400 is not necessarily the best; if the thickness of the impact-resistant film layer 400 is too thick, the overall thickness of the support member will be too large, affecting the thickness of the display module using this support member. This disclosure, by making the thickness of the impact-resistant film layer 400 10μm to 200μm, can achieve both high impact resistance and high bending stiffness in the support member, while also avoiding excessive overall thickness of the support member.

[0069] In some embodiments of this disclosure, the thickness of the impact-resistant film layer 400 can be 10μm, 20μm, 30μm, 40μm, 50μm, 60μm, 70μm, 80μm, 90μm, 100μm, 110μm, 120μm, 130μm, 140μm, 150μm, 160μm, 170μm, 180μm, 190μm, 200μm, etc., and can be set by those skilled in the art according to actual needs.

[0070] As an optional embodiment, the first resin material is selected from any one of epoxy resin, polyurethane resin, bismaleimide resin, and polyimide resin.

[0071] In some embodiments of this disclosure, the first resin material is selected from any one of epoxy resins, polyurethane resins, bismaleimide resins, and polyimide resins. Meanwhile, the second resin material needs to be a resin of the same resin family as the first resin material. For example, when the first resin material is an epoxy resin, the second resin material is also an epoxy resin; when the first resin material is a polyurethane resin, the second resin material is also a polyurethane resin; when the first resin material is a bismaleimide resin, the second resin material is also a bismaleimide resin; when the first resin material is a polyimide resin, the second resin material is also a polyimide resin.

[0072] In some embodiments of this disclosure, exemplarily, when the first resin material and the second resin material are both epoxy resins, the temperature of the hot-pressing process can be 130°C to 170°C, for example, 150°C, when the first support layer 100, the second support layer 200, and the third support layer 300 are simultaneously laminated in the support member through a hot-pressing process. Simultaneously, it is necessary to ensure that the material of the impact-resistant film layer 400 does not change during the hot-pressing process. For example, at a temperature of 200°C, the material of the impact-resistant film layer 400 should not change within 24 hours, to ensure that the impact-resistant film layer 400 maintains its basic performance during the hot-pressing process.

[0073] As an optional implementation, the carbon fiber material in the first support layer 100, the carbon fiber material in the second support layer 200, and the carbon fiber material in the third support layer 300 are each independently selected from any one or more of T700 carbon fiber, T800 carbon fiber, T1000 carbon fiber, M40 carbon fiber, M46 carbon fiber, M55 carbon fiber, and M60 carbon fiber.

[0074] In some embodiments of this disclosure, optionally, the tensile strength and tensile modulus of each support layer can be adjusted by adjusting the carbon fiber material in the first support layer 100, the carbon fiber material in the second support layer 200, and the carbon fiber material in the third support layer 300, thereby achieving the purpose of adjusting the overall bending stiffness of the support member.

[0075] In some embodiments of this disclosure, optionally, the carbon fiber material in the first support layer 100, the carbon fiber material in the second support layer 200, and the carbon fiber material in the third support layer 300 are each independently selected from any one or more of T700 carbon fiber, T800 carbon fiber, T1000 carbon fiber, M40 carbon fiber, M46 carbon fiber, M55 carbon fiber, and M60 carbon fiber. For example, the carbon fiber material in the first support layer 100 and the third support layer 300 can be T700 carbon fiber, and the carbon fiber material in the second support layer 200 can be M40 carbon fiber; the carbon fiber material in the first support layer 100 can be T700 carbon fiber, the carbon fiber material in the second support layer 200 can be M40 carbon fiber, and the carbon fiber material in the third support layer 300 can be T800 carbon fiber; or the carbon fiber material in the first support layer 100 can be T800 carbon fiber, the carbon fiber material in the second support layer 200 can be M55 carbon fiber, and the carbon fiber material in the third support layer 300 can be T700 carbon fiber.

[0076] It should be noted that the "T" value in T700, T800, and T1000 carbon fibers represents the tensile strength of the carbon fiber. A higher "T" value indicates a higher tensile strength; for example, the tensile strength of T800 carbon fiber is greater than that of T700 carbon fiber. The "M" value in M40, M46, M55, and M60 carbon fibers represents the tensile modulus; a higher "M" value indicates a higher tensile modulus. T700, T800, T1000, M40, M46, M55, and M60 carbon fibers can be sourced from Toray Industries, Inc. of Japan. Their tensile strength and tensile modulus can be found in Toray Industries' carbon fiber material datasheets.

[0077] In some embodiments of this disclosure, optionally, the extending direction of the carbon fiber material in the first support layer 100 is perpendicular to the extending direction of the carbon fiber material in the second support layer 200, and the extending direction of the carbon fiber material in the third support layer 300 is perpendicular to the extending direction of the carbon fiber material in the second support layer 200. This can improve the support strength of the support member in all directions and reduce to some extent the defect of large differences in support strength of the support member in all directions caused by the anisotropy of the carbon fiber material.

[0078] As an alternative implementation, the content of the first resin material in the first support layer 100 may be greater than the content of the first resin material in the second support layer 200; and / or, the content of the first resin material in the third support layer 300 may be greater than the content of the first resin material in the second support layer 200.

[0079] In some embodiments of this disclosure, by making the content of the first resin material in the first support layer 100 greater than the content of the first resin material in the second support layer 200, the flatness of the first support layer 100 can be improved, thereby enhancing the appearance quality of the first support layer 100 and facilitating its bonding with structures such as display panels. Especially when the first support layer 100 is not covered by the impact-resistant film layer 400 and is located on the outside of the support member, the appearance requirements of the first support layer 100 are high. Therefore, by making the content of the first resin material in the first support layer 100 greater than the content of the first resin material in the second support layer 200, the flatness and appearance quality of the first support layer 100 can be ensured. Similarly, by making the content of the first resin material in the third support layer 300 greater than that in the second support layer 200, the flatness of the third support layer 300 can be improved, thereby enhancing the appearance quality of the third support layer 300 and facilitating its bonding with structures such as display panels. Especially when the third support layer 300 is not covered by the impact-resistant film layer 400 and is located on the outside of the support member, the appearance requirements for the third support layer 300 are high. Therefore, by making the content of the first resin material in the third support layer 300 greater than that in the second support layer 200, the flatness and appearance quality of the third support layer 300 can be ensured.

[0080] It should be noted that the content of the first resin material in each support layer refers to the percentage of the mass of the first resin material to the total mass of each support layer. For example, if the content of the first resin material in the first support layer 100 is 40%, it means that when the total mass of the carbon fiber material and the first resin material in the second support layer 200 is 100g, the mass of the first resin material is 40g.

[0081] As an optional embodiment, the content of the first resin material in the first support layer 100 is 25% to 50%, and / or the content of the first resin material in the second support layer 200 is 25% to 50%, and / or the content of the first resin material in the third support layer 300 is 25% to 50%.

[0082] In some embodiments of this disclosure, optionally, the tensile strength, tensile modulus, and appearance quality of each support layer can be adjusted by respectively adjusting the content of the first resin material in the first support layer 100, the content of the first resin material in the second support layer 200, and the content of the first resin material in the third support layer 300, thereby achieving the purpose of adjusting the overall bending strength and appearance quality of the support component.

[0083] In some embodiments of this disclosure, optionally, the content of the first resin material in the first support layer 100 is 25% to 50%. Exemplarily, the content of the first resin material in the first support layer 100 can be 25%, 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, 50%, etc., and those skilled in the art can set it according to actual needs.

[0084] In some embodiments of this disclosure, optionally, the content of the first resin material in the second support layer 200 is 25% to 50%. Exemplarily, the content of the first resin material in the second support layer 200 can be 25%, 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, 50%, etc., and those skilled in the art can set it according to actual needs.

[0085] In some embodiments of this disclosure, optionally, the content of the first resin material in the third support layer 300 is 25% to 50%. Exemplarily, the content of the first resin material in the third support layer 300 can be 25%, 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, 50%, etc., and those skilled in the art can set it according to actual needs.

[0086] In some embodiments of this disclosure, optionally, such as Figure 1 , Figure 2 , Figures 5 to 14 As shown, when the first support layer 100 and the impact-resistant membrane layer 400 are arranged adjacent to each other, the content of the first resin material in the first support layer 100 can be appropriately reduced, and the content of the first resin material in the first support layer 100 can be 25% to 40%.

[0087] In some embodiments of this disclosure, optionally, such as Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figures 8 to 14As shown, when the second support layer 200 is disposed adjacent to the impact-resistant membrane layer 400, the content of the first resin material in the second support layer 200 can be appropriately reduced, and the content of the first resin material in the second support layer 200 can be 25% to 40%.

[0088] In some embodiments of this disclosure, optionally, such as Figure 3 , Figure 4 , Figures 6 to 14 As shown, when the third support layer 300 is disposed adjacent to the impact-resistant membrane layer 400, the content of the first resin material in the third support layer 300 can be appropriately reduced, and the content of the first resin material in the third support layer 300 can be 25% to 40%.

[0089] As an optional implementation, the basis weight of the carbon fiber material in the first support layer 100 is 15 g / m². 2 ~40g / m 2 ; and / or, the basis weight of the carbon fiber material in the second support layer 200 is 50 g / m 2 ~150g / m 2 ; and / or, the basis weight of the carbon fiber material in the third support layer 300 is 15 g / m 2 ~40g / m 2 .

[0090] In some embodiments of this disclosure, optionally, the thickness, tensile strength, and tensile modulus of each support layer can be adjusted by adjusting the basis weight of the carbon fiber material in the first support layer 100, the basis weight of the carbon fiber material in the second support layer 200, and the basis weight of the carbon fiber material in the second support layer 200, thereby achieving the purpose of adjusting the overall thickness and bending stiffness of the support member.

[0091] Optionally, in some embodiments of this disclosure, the basis weight of the carbon fiber material in the first support layer 100 is 15 g / m². 2 ~40g / m 2 For example, the basis weight of the carbon fiber material in the first support layer 100 can be 15 g / m². 2 16g / m 2 17g / m 2 18g / m 2 19g / m 2 20g / m 2 21g / m 2 22g / m 2 23g / m 2 24g / m 2 25g / m 2 26g / m 2 27g / m 2 28g / m 229g / m 2 30g / m 2 31g / m 2 32g / m 2 33g / m 2 34g / m 2 35g / m 2 36g / m 2 37g / m 2 38g / m 2 39g / m 2 40g / m 2 Etc., those skilled in the art can set it according to actual needs.

[0092] Optionally, in some embodiments of this disclosure, the basis weight of the carbon fiber material in the second support layer 200 is 50 g / m². 2 ~150g / m 2 For example, the basis weight of the carbon fiber material in the second support layer 200 can be 50 g / m². 2 52g / m 2 54g / m 2 56g / m 2 58g / m 2 60g / m 2 62g / m 2 64g / m 2 65g / m 2 680g / m 2 70g / m 2 72g / m 2 74g / m 2 76g / m 2 78g / m 2 80g / m 2 82g / m 2 84g / m 2 86g / m 2 88g / m 2 90g / m 2 92g / m 2 94g / m 2 96g / m 2 98g / m 2 100g / m 2 102g / m 2 104g / m 2 106g / m 2 108g / m 2 110g / m 2 112g / m 2 114g / m2 116g / m 2 118g / m 2 120g / m 2 122g / m 2 124g / m 2 126g / m 2 128g / m 2 130g / m 2 132g / m 2 134g / m 2 136g / m 2 138g / m 2 140g / m 2 142g / m 2 144g / m 2 146g / m 2 148g / m 2 150g / m 2 Etc., those skilled in the art can set it according to actual needs.

[0093] Optionally, in some embodiments of this disclosure, the basis weight of the carbon fiber material in the third support layer 300 is 15 g / m². 2 ~40g / m 2 For example, the basis weight of the carbon fiber material in the third support layer 300 can be 15 g / m². 2 16g / m 2 17g / m 2 18g / m 2 19g / m 2 20g / m 2 21g / m 2 22g / m 2 23g / m 2 24g / m 2 25g / m 2 26g / m 2 27g / m 2 28g / m 2 29g / m 2 30g / m 2 31g / m 2 32g / m 2 33g / m 2 34g / m 2 35g / m 2 36g / m 2 37g / m 2 38g / m 2 39g / m 2 40g / m2 Etc., those skilled in the art can set it according to actual needs.

[0094] Table 1. Test results of the mechanical properties of the supports in the embodiments and comparative examples.

[0095]

[0096] Table 1 shows the test results of the mechanical properties of the support members in the embodiments and comparative examples of this disclosure. Wherein:

[0097] The support structure of Example 1 is as follows Figure 1 As shown, the carbon fiber material in the first support layer 100 is T700 carbon fiber, and the basis weight of the carbon fiber material in the first support layer 100 is 25 g / m². 2 The first resin material in the first support layer 100 is an epoxy resin-based resin material, and the content of the first resin material in the first support layer 100 is 40%; the carbon fiber material in the second support layer 200 is M40 carbon fiber, and the basis weight of the carbon fiber material in the second support layer 200 is 110 g / m³. 2 The first resin material in the second support layer 200 is an epoxy resin-based resin material, and the content of the first resin material in the second support layer 200 is 30%; the carbon fiber material in the third support layer 300 is T700 carbon fiber, and the basis weight of the carbon fiber material in the third support layer 300 is 25 g / m³. 2 The first resin material in the third support layer 300 is an epoxy resin-based material, and the content of the first resin material in the third support layer 300 is 40%. The first resin material is the same in all support layers. The tensile strength of the first resin material is 85 MPa, the tensile modulus of the first resin material is 3000 MPa, and the elongation at break of the first resin material is 6%. The thickness of the impact-resistant film layer 400 is 50 μm. The second resin material of the impact-resistant film layer 400 is an epoxy resin-based material. The tensile strength of the second resin material is 25 MPa, the tensile modulus of the second resin material is 4 MPa, and the elongation at break of the second resin material is 300%.

[0098] The support structure of Example 2 is as follows Figure 2 As shown, the carbon fiber material in the first support layer 100 is T700 carbon fiber, and the basis weight of the carbon fiber material in the first support layer 100 is 25 g / m². 2 The first resin material in the first support layer 100 is an epoxy resin-based resin material, and the content of the first resin material in the first support layer 100 is 40%; the carbon fiber material in the second support layer 200 is M40 carbon fiber, and the basis weight of the carbon fiber material in the second support layer 200 is 110 g / m³. 2The first resin material in the second support layer 200 is an epoxy resin-based resin material, and the content of the first resin material in the second support layer 200 is 30%; the carbon fiber material in the third support layer 300 is T700 carbon fiber, and the basis weight of the carbon fiber material in the third support layer 300 is 25 g / m³. 2 The first resin material in the third support layer 300 is an epoxy resin-based material, and the content of the first resin material in the third support layer 300 is 40%. The first resin material is the same in all support layers. The tensile strength of the first resin material is 85 MPa, the tensile modulus of the first resin material is 3000 MPa, and the elongation at break of the first resin material is 6%. The thickness of the impact-resistant film layer 400 is 100 μm. The second resin material of the impact-resistant film layer 400 is an epoxy resin-based material. The tensile strength of the second resin material is 25 MPa, the tensile modulus of the second resin material is 4 MPa, and the elongation at break of the second resin material is 300%.

[0099] The support structure of Example 3 is as follows Figure 8 As shown, the carbon fiber material in the first support layer 100 is T700 carbon fiber, and the basis weight of the carbon fiber material in the first support layer 100 is 25 g / m². 2 The first resin material in the first support layer 100 is an epoxy resin-based resin material, and the content of the first resin material in the first support layer 100 is 40%; the carbon fiber material in the second support layer 200 is M40 carbon fiber, and the basis weight of the carbon fiber material in the second support layer 200 is 110 g / m³. 2 The first resin material in the second support layer 200 is an epoxy resin-based resin material, and the content of the first resin material in the second support layer 200 is 30%; the carbon fiber material in the third support layer 300 is T700 carbon fiber, and the basis weight of the carbon fiber material in the third support layer 300 is 25 g / m³. 2 The first resin material in the third support layer 300 is an epoxy resin-based material, and the content of the first resin material in the third support layer 300 is 40%. The first resin material is the same in each support layer, and the tensile strength of the first resin material is 85 MPa, the tensile modulus of the first resin material is 3000 MPa, and the elongation at break of the first resin material is 6%. The thickness of each impact-resistant film layer 400 is 100 μm. The second resin material of the impact-resistant film layer 400 is an epoxy resin-based material, and the tensile strength of the second resin material is 25 MPa, the tensile modulus of the second resin material is 4 MPa, and the elongation at break of the second resin material is 300%.

[0100] The support structure of Example 4 is as follows Figure 5 As shown, the carbon fiber material in the first support layer 100 is T700 carbon fiber, and the basis weight of the carbon fiber material in the first support layer 100 is 25 g / m². 2The first resin material in the first support layer 100 is an epoxy resin-based resin material, and the content of the first resin material in the first support layer 100 is 40%; the carbon fiber material in the second support layer 200 is M40 carbon fiber, and the basis weight of the carbon fiber material in the second support layer 200 is 110 g / m³. 2 The first resin material in the second support layer 200 is an epoxy resin-based resin material, and the content of the first resin material in the second support layer 200 is 30%; the carbon fiber material in the third support layer 300 is T700 carbon fiber, and the basis weight of the carbon fiber material in the third support layer 300 is 25 g / m³. 2 The first resin material in the third support layer 300 is an epoxy resin-based material, and the content of the first resin material in the third support layer 300 is 40%. The first resin material is the same in each support layer, and the tensile strength of the first resin material is 85 MPa, the tensile modulus of the first resin material is 3000 MPa, and the elongation at break of the first resin material is 6%. The thickness of each impact-resistant film layer 400 is 50 μm. The second resin material of the impact-resistant film layer 400 is an epoxy resin-based material, and the tensile strength of the second resin material is 25 MPa, the tensile modulus of the second resin material is 4 MPa, and the elongation at break of the second resin material is 300%.

[0101] The support component of Comparative Example 1 includes a first support layer 100, a second support layer 200, and a third support layer 300 stacked sequentially. The carbon fiber material in the first support layer 100 is T700 carbon fiber, and the basis weight of the carbon fiber material in the first support layer 100 is 25 g / m². 2 The first resin material in the first support layer 100 is an epoxy resin-based resin material, and the content of the first resin material in the first support layer 100 is 40%; the carbon fiber material in the second support layer 200 is M40 carbon fiber, and the basis weight of the carbon fiber material in the second support layer 200 is 110 g / m³. 2 The first resin material in the second support layer 200 is an epoxy resin-based resin material, and the content of the first resin material in the second support layer 200 is 30%; the carbon fiber material in the third support layer 300 is T700 carbon fiber, and the basis weight of the carbon fiber material in the third support layer 300 is 25 g / m³. 2 The first resin material in the third support layer 300 is an epoxy resin material, and the content of the first resin material in the third support layer 300 is 40%. The first resin material is the same in each support layer. The tensile strength of the first resin material is 85 MPa, the tensile modulus of the first resin material is 3000 MPa, and the elongation at break of the first resin material is 6%.

[0102] As shown in Table 1, compared to Comparative Example 1, the support members of Embodiments 1 to 3 of this disclosure, by introducing the impact-resistant membrane layer 400, can improve the bending stiffness of the support members in both directions of the carbon fiber material, increasing the bending stiffness of the support members by more than 20%. Furthermore, as the thickness of the impact-resistant membrane layer 400 increases, the increase in bending stiffness of the support members in the 90° direction of the carbon fiber material is more significant. At the same time, compared to Comparative Example 1, the support members of Embodiments 1 to 3 of this disclosure, by introducing the impact-resistant membrane layer 400, can significantly improve the energy absorption rate of the support members, that is, can significantly improve the impact resistance of the support members. Moreover, as the thickness of the impact-resistant membrane layer 400 increases, the impact resistance of the support members also increases synchronously.

[0103] Based on the same inventive concept, this disclosure also proposes a display module, which includes the aforementioned support member.

[0104] Since the display module provided by the present invention includes the support component of the above-mentioned technical solution, the display module provided by the present invention has all the beneficial effects of the above-mentioned support component, which will not be elaborated here.

[0105] In some embodiments of this disclosure, the display module includes a display panel and a support member, with the non-display side of the display panel attached to the support member. Optionally, a back film (BF) may also be provided between the display panel and the support member.

[0106] Based on the same inventive concept, this disclosure also proposes a display device, which includes the above-described display module.

[0107] Since the display device provided by the present invention includes the display module of the above-mentioned technical solution, the display device provided by the present invention has all the beneficial effects of the above-mentioned display module, which will not be elaborated here.

[0108] In some embodiments of this disclosure, the display device may be a product or component with display function, such as a mobile phone, tablet computer, laptop computer, television, watch, digital camera, or navigator, which includes display modules such as liquid crystal displays, electronic paper, and OLED displays.

[0109] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0110] Furthermore, the use of terms such as "first" and "second" in this disclosure is for descriptive purposes only and should not be construed as indicating or implying their 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 of the stated features. In the description of this disclosure, "multiple" means two or more, unless otherwise explicitly specified.

[0111] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0112] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this disclosure.

[0113] Although embodiments of the present disclosure have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. A support member, characterized in that, The support member includes a first support layer, a second support layer, a third support layer, and at least one impact-resistant membrane layer; the first support layer, the second support layer, and the third support layer are sequentially stacked, and the first support layer, the second support layer, and the third support layer are respectively composed of carbon fiber material and a first resin material; the impact-resistant membrane layer is made of a second resin material, and the second resin material and the first resin material are homologous resin materials; wherein: The impact-resistant membrane layer is located on the side of the first support layer away from the second support layer; And / or, The impact-resistant membrane layer is located between the first support layer and the second support layer; And / or, The impact-resistant membrane layer is located between the second support layer and the third support layer; And / or, The impact-resistant membrane layer is located on the side of the third support layer away from the second support layer; The first resin material and the second resin material are of different types. The tensile strength of the first resin material is greater than that of the second resin material. The tensile modulus of the first resin material is greater than that of the second resin material. The elongation at break of the second resin material is greater than that of the first resin material.

2. The support member as described in claim 1, characterized in that, The tensile strength of the first resin material is 1.75 to 12.00 times that of the second resin material; the tensile modulus of the first resin material is 500.00 to 1200.00 times that of the second resin material; and the elongation at break of the second resin material is 20.00 to 200.00 times that of the first resin material.

3. The support member as described in claim 2, characterized in that, The tensile strength of the second resin material is 9.00 MPa to 40.00 MPa, the tensile modulus of the second resin material is 3.00 MPa to 5.00 MPa, and the elongation at break of the second resin material is 200% to 400%.

4. The support member as described in claim 3, characterized in that, The tensile strength of the first resin material is 70 MPa to 100 MPa, the tensile modulus of the first resin material is 2500 MPa to 3500 MPa, and the elongation at break of the first resin material is 2% to 10%.

5. The support member as described in claim 1, characterized in that, The thickness of the impact-resistant membrane is 10 μm to 200 μm.

6. The support member as described in claim 5, characterized in that, The thickness of the impact-resistant membrane is 50 μm to 200 μm.

7. The support member as described in claim 1, characterized in that, The first resin material is selected from any one of epoxy resin, polyurethane resin, bismaleimide resin, and polyimide resin.

8. The support member as described in any one of claims 1 to 7, characterized in that, The carbon fiber material in the first support layer, the carbon fiber material in the second support layer, and the carbon fiber material in the third support layer are each independently selected from any one or more of T700 carbon fiber, T800 carbon fiber, T1000 carbon fiber, M40 carbon fiber, M46 carbon fiber, M55 carbon fiber, and M60 carbon fiber.

9. The support member as described in claim 8, characterized in that, The content of the first resin material in the first support layer is greater than the content of the first resin material in the second support layer; and / or, the content of the first resin material in the third support layer is greater than the content of the first resin material in the second support layer.

10. The support member as described in claim 9, characterized in that, The content of the first resin material in the first support layer is 25%~50%, and / or the content of the first resin material in the second support layer is 25%~50%, and / or the content of the first resin material in the third support layer is 25%~50%.

11. The support member as described in claim 9, characterized in that, The basis weight of the carbon fiber material in the first support layer is 15 g / m. 2 ~40 g / m 2 ; and / or, The basis weight of the carbon fiber material in the second support layer is 50 g / m. 2 ~150 g / m 2 ; and / or, The carbon fiber material in the third support layer has a basis weight of 15 g / m². 2 ~40 g / m 2 .

12. A display module, characterized in that, The display module includes a support member as described in any one of claims 1 to 11.

13. A display device, characterized in that, The display device includes the display module as described in claim 12.

Images