Supporting plate, display module, display device and manufacturing method of supporting plate

Abstract

The invention relates to a supporting plate, a display module, a display device and a manufacturing method of the supporting plate, the supporting plate is used for supporting a flexible display panel and comprises a carbon fiber base material and a conductive structure, and the carbon fiber base material and the conductive structure are integrally formed through the same technology. The supporting plate provided by the invention comprises the carbon fiber base material and the conductive structure, and the conductive structure and the carbon fiber base material are integrally formed through the same process, so that conductive copper foil does not need to be additionally attached, the process is simplified, the cost is saved, and compared with a mode of additionally attaching the conductive copper foil, the thickness of the supporting plate is not increased, and the production efficiency is improved. And lightening and thinning of the display module are facilitated.

Description

Technical Field

[0001] The present disclosure relates to the technical field of display product manufacturing, and in particular to a support plate, a display module, a display device, and a manufacturing method of a support plate. Background Art

[0002] Display screens are an important medium for human-computer interaction. With the rapid advancement of information technologies such as artificial intelligence, wearable devices, and smart cars, display devices that serve as information windows have been required to be flexible, thin, power-saving, foldable, curlable, and extra-large in size. Organic electroluminescent display technology (OLED) has emerged as the times require.

[0003] OLED has the characteristics of self-luminescence, fast response speed, rich color display, low power consumption, and can be used for flexible display and wearables. It has gradually entered the public's field of vision, especially in the field of mobile phones. The application of full-screen and foldable display technology has brought people a better experience, which shows that OLED display technology has gradually become a hot spot and focus in the industry. In recent years, the demand for smartphone terminal market has been weak, and the shipment growth has been weak. The application of new technologies has become a breakthrough for various companies, especially foldable screen smartphones are regarded as a hot direction for technological innovation of consumer electronics products. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a support plate, a display module, a display device and a method for manufacturing the support plate, which solves the problem that the use of carbon fiber as a support plate requires additional bonding of conductive copper foil, resulting in an increase in the thickness of the support plate and high cost.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted in the embodiment of the present disclosure is: a support plate for supporting a flexible display panel, comprising a carbon fiber substrate and a conductive structure, wherein the carbon fiber substrate and the conductive structure are integrally formed by the same process.

[0006] Optionally, the conductive structure includes a conductive layer embedded in a first surface of the carbon fiber substrate, and a second surface of the conductive layer is exposed from the carbon fiber substrate.

[0007] Optionally, the carbon fiber substrate has a thickness of 0.1-0.2 mm.

[0008] Optionally, the thickness of the conductive layer is 10um to 30um.

[0009] Optionally, the material of the conductive layer is a conductive metal film or a conductive metal powder.

[0010] Optionally, the conductive structure includes conductive particles filled in the carbon fiber matrix.

[0011] Optionally, the carbon fiber substrate includes at least one carbon fiber layer, and each of the carbon fiber layers includes carbon fibers arranged in parallel.

[0012] Optionally, the carbon fiber substrate includes at least two carbon fiber layers, and the extension directions of the carbon fibers on two adjacent carbon fiber layers are arranged to cross each other.

[0013] Optionally, it comprises a flat area and a bending area bendable along a folding axis, and at least two of the carbon fiber layers comprise a first carbon fiber layer, and an extension direction of the carbon fibers of the first carbon fiber layer is perpendicular to an extension direction of the folding axis.

[0014] Optionally, it comprises a flat area and a bending area bendable along a folding axis, and at least two of the carbon fiber layers comprise a second carbon fiber layer, and an extension direction of the carbon fibers of the second carbon fiber layer is parallel to an extension direction of the folding axis.

[0015] The embodiment of the present disclosure further provides a display module, including a flexible display panel, and a support plate arranged on the backlight side of the flexible display panel, wherein the support plate is the support plate mentioned above.

[0016] The embodiment of the present disclosure further provides a display device, comprising the above-mentioned display module.

[0017] The present disclosure also provides a method for manufacturing a support plate, which is used to manufacture the support plate, comprising:

[0018] Provide carbon fiber prepreg;

[0019] A mold fixed with a conductive material is provided, and the carbon fiber prepreg is placed in the mold for hot pressing to form the support plate.

[0020] The present disclosure also provides a method for manufacturing a support plate, which is used to manufacture the support plate, comprising:

[0021] Provide carbon fiber prepreg;

[0022] After the carbon fiber prepreg is fixed in the mold, a conductive material is placed on the surface of the carbon fiber prepreg;

[0023] The conductive material and the carbon fiber prepreg are integrally hot-pressed to form the support plate.

[0024] The beneficial effects of the present disclosure are as follows: the support plate provided by the present disclosure includes a carbon fiber substrate and a conductive structure, and the conductive structure and the carbon fiber substrate are integrally formed by the same process, so there is no need to additionally attach a conductive copper foil, which simplifies the process and saves costs. Compared with the method of additionally attaching a conductive copper foil, the thickness of the support plate will not be increased, which is conducive to the thinness of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram showing the structure of a support plate in the related art;

[0026] Figure 2 A schematic diagram showing a support plate in an embodiment of the present disclosure;

[0027] Figure 3 A schematic diagram showing a support plate in an embodiment of the present disclosure;

[0028] Figure 4 An exploded schematic diagram showing a carbon fiber substrate in an embodiment of the present disclosure;

[0029] Figure 5 A schematic diagram showing a carbon fiber substrate in an embodiment of the present disclosure;

[0030] Figure 6 A schematic diagram showing a carbon fiber substrate in an embodiment of the present disclosure;

[0031] Figure 7 A schematic diagram showing a carbon fiber substrate in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0033] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] The features such as "parallel", "perpendicular", and "same" used in the embodiments of the present disclosure include the features such as "parallel", "perpendicular", and "same" in a strict sense, as well as the cases where "approximately parallel", "approximately perpendicular", "approximately the same", etc. include certain tolerances, taking into account the tolerances associated with the measurement of specific quantities (e.g., the limitations of the measurement system), and represent the acceptable deviation range for a specific value determined by ordinary technicians in the field. For example, "approximately" can mean within one or more standard deviations, or within 3% or 5% of the value.

[0035] In the folding display industry, major domestic terminal manufacturers have launched their own folding products. In order to achieve the foldable requirements, the folding display technology currently on the market requires a flexible cover and a bendable support structure. The non-bending area of ​​the support structure can improve the overall mechanical properties of the folding display, and the mesh through-hole area can meet the bending requirements of more than 200,000. As the core structure of the flexible module, the support parts usually use materials such as SUS and Ti alloy. These materials have high density, resulting in a large overall weight of the folding screen. In order to bring consumers lighter and thinner folding products, carbon fiber, as the main material of the support parts, has become the first choice for high-end folding screens in recent years, but its high cost and complex processing technology have restricted the further development of carbon fiber in the display field.

[0036] As a support for the folding screen, carbon fiber not only needs to provide strength support, but also needs to have good surface conductivity to match the FPC grounding and the whole machine grounding. Since the conductive carbon filaments are wrapped in resin, the resin is actually in direct contact with the FPC, and the FPC grounding requirements cannot be met. In order to achieve carbon fiber conductivity and grounding, additional conductive copper foil needs to be laminated. This will increase the overall thickness of the carbon fiber board, and adhesive glue is required to bond the copper foil and carbon fiber, which is more expensive.

[0037] like Figure 1 As shown, the support plate in the related art includes a carbon fiber plate 1 and a conductive layer 2 arranged on the carbon fiber plate 1, wherein the conductive layer 2 is a conductive film layer vapor-deposited on the carbon fiber plate by PVD (Physical Vapor Deposition), or a conductive copper foil adhered to the carbon fiber plate 1 by an adhesive material 3. Regardless of which of the above methods is used to connect the conductive layer 2 to the carbon fiber plate, the conductive layer 2 will increase the thickness of the overall support plate, and regardless of whether it is vapor-deposited by PVD or the conductive layer 2 and the carbon fiber plate 1 are bonded by the adhesive material 3, the cost is increased.

[0038] refer to Figure 2-Figure 7In view of the above problems, this embodiment provides a support plate for supporting a flexible display panel, comprising a carbon fiber substrate 1 and a conductive structure, wherein the carbon fiber substrate 1 and the conductive structure are integrally formed by the same process.

[0039] In this embodiment, the carbon fiber substrate 1 and the conductive structure are integrally formed by the same process. Compared with the PVD method of evaporating the conductive layer 21, the process flow is simpler, the cost is lower, and the overall thickness of the support plate is not increased. Compared with the method of directly bonding the conductive layer 21 to the carbon fiber plate by bonding adhesive, the thickness of the support plate is thinner, no bonding adhesive is required, and the cost is better.

[0040] It should be noted that the carbon fiber substrate 1 includes a resin and carbon fibers disposed in the resin. The carbon fibers are mainly composed of carbon elements and have the characteristics of high temperature resistance, friction resistance, electrical conductivity, thermal conductivity and corrosion resistance. The appearance is fibrous, soft, and can be processed into various fabrics. Since its graphite microcrystalline structure is preferentially oriented along the fiber axis, it has high tensile strength and tensile modulus along the fiber axis. Carbon fibers have the advantages of low density, high specific strength and high specific modulus. The resin is a thermosetting resin, such as epoxy resin, phenolic resin, polyester resin and vinyl ester resin. In some embodiments, the resin is epoxy resin, which has excellent physical and mechanical properties, electrical insulation properties, and adhesion properties with various materials, especially adhesion properties with metals.

[0041] refer to Figure 2 and Figure 3 In an exemplary embodiment, the conductive structure includes a conductive layer 21 embedded in a first surface of the carbon fiber substrate 1 , and a second surface of the conductive layer 21 is exposed on the carbon fiber substrate 1 .

[0042] In an exemplary embodiment, the conductive material of the conductive layer 21 is a conductive metal film or a conductive metal powder, or a conductive metal sheet, as long as it can be integrally formed with the carbon fiber substrate 1 to achieve the conductive function of the support plate including the carbon fiber substrate 1.

[0043] It should be noted that, in this embodiment, the conductive layer 21 and the carbon fiber substrate 1 are integrally formed by a hot pressing process, and the carbon fiber substrate 1 includes resin and carbon fiber 101. Before hot pressing, the conductive material forming the conductive layer 21 can be fixed to the surface of the hot pressing mold, or after the carbon fiber substrate 1 is placed in the hot pressing mold, the conductive material is placed on the surface of the carbon fiber substrate 1. During hot pressing, the resin is in a molten state, so after cooling, the conductive layer 21 formed by the conductive material is naturally embedded in the surface of the carbon fiber substrate 1. Also because of this molding process, the conductive material forming the conductive layer 21 can be a conductive metal powder, that is, the selection of the conductive material forming the conductive layer 21 is more flexible and can reduce costs.

[0044] In an exemplary embodiment, the conductive layer 21 is embedded in the first surface of the carbon fiber substrate 1, and the first surface and the second surface are arranged flush.

[0045] The conductive layer 21 is provided so that the support plate has conductive properties. In this embodiment, the conductive layer 21 and the carbon fiber substrate are integrally formed by a hot pressing process. During hot pressing, the resin in the carbon fiber substrate 1 is in a molten state and has fluidity, so that the conductive layer 21 can be embedded in the carbon fiber substrate, and the first surface and the second surface are arranged flush. Compared with the method of forming the conductive layer 21 by vapor deposition or bonding the conductive layer 21 by adhesive, the support plate in this embodiment has better flatness.

[0046] It should be noted that, in the present embodiment, the molten state of the resin is utilized to place the required conductive material on the mold surface or the surface layer of the carbon fiber prepreg during hot pressing, and after cooling, the conductive layer 21 is naturally embedded in the surface of the carbon fiber substrate 1. Therefore, the thickness of the support plate formed by the conductive layer 21 embedded in the carbon fiber substrate 1 is the thickness of the carbon fiber substrate 1, which will not increase the overall thickness of the support plate, and is conducive to the thinness of the display module.

[0047] In an exemplary embodiment, the thickness of the carbon fiber substrate 1 is 0.1-0.2 mm, but is not limited thereto. In some specific embodiments, the thickness of the carbon fiber substrate 1 is 0.17 mm.

[0048] In an exemplary embodiment, the thickness of the conductive layer 21 is 10 um to 30 um. In some specific embodiments, the thickness of the conductive layer 21 is 30 um, but not limited thereto.

[0049] In an exemplary embodiment, the conductive structure includes conductive particles 22 filled in the carbon fiber substrate 1 .

[0050] The conductive particles 22 are filled in the carbon fiber substrate 1, so that the carbon fiber substrate as a whole has conductive properties, thereby improving the electrostatic discharge performance of the support plate.

[0051] It should be noted that although the conductive particles are filled inside the carbon fiber substrate 1, at least some of the conductive particles are in contact, that is, a conductive path is formed and extends to the surface of the carbon fiber substrate 1, and the conductive structure and the carbon fiber substrate 1 are integrally formed through a hot pressing process. During the hot pressing process, the conductive particles are squeezed, which increases the contact area between the conductive particles and improves the conductive properties of the carbon fiber substrate 1, thereby making the carbon fiber substrate 1 as a whole conductive.

[0052] It should be noted that the conductive performance of the carbon fiber substrate 1 is related to factors such as the density and content of the conductive particles 22 and the size of the conductive ions, and the density and content of the conductive particles 22 and the size of the conductive ions can be set according to actual needs. For example, the content of the conductive particles is 5%-60%, and the shape of the conductive particles can be spherical or other irregular shapes.

[0053] In an exemplary embodiment, the material of the conductive particles 22 may include, but is not limited to, metals such as copper, nickel, silver, gold, and conductive materials such as metal oxides.

[0054] refer to Figure 7 In an exemplary embodiment, the conductive structure includes a conductive layer 21 embedded in the first surface of the carbon fiber substrate 1, and conductive particles 22 filled in the carbon fiber substrate 1. The conductive performance of the support plate is enhanced.

[0055] It should be noted that Figure 7 The conductive layer 21 is made of conductive metal powder, but is not limited thereto.

[0056] In an exemplary embodiment, the carbon fiber substrate 1 includes at least one carbon fiber layer, and each of the carbon fiber layers includes carbon fibers 101 arranged in parallel.

[0057] The carbon fiber substrate 1 can be a single carbon fiber layer or a composite multi-layer carbon fiber layer.

[0058] In an exemplary embodiment, the carbon fiber substrate 1 includes at least two carbon fiber layers, and the extension directions of the carbon fibers 101 on two adjacent carbon fiber layers are arranged to cross each other.

[0059] In an exemplary embodiment, the support plate includes a flat area and a bending area that can be bent along a folding axis, and at least two of the carbon fiber layers include a first carbon fiber layer, and the extension direction of the carbon fibers 101 of the first carbon fiber layer is perpendicular to the extension direction of the folding axis.

[0060] In an exemplary embodiment, the support plate includes a flat area and a bending area bendable along a folding axis, and at least two of the carbon fiber layers include a second carbon fiber layer, and the extension direction of the carbon fibers 101 of the second carbon fiber layer is parallel to the extension direction of the folding axis.

[0061] The carbon fiber substrate 1 is lightweight and can reduce the overall weight of the support plate. In addition, the carbon fiber substrate 1 contains carbon fiber 101, which is an anisotropic material with different mechanical properties in different directions. For example, data show that the tensile strength of carbon fiber 101 in the 0° direction (parallel to the extension direction of the carbon fiber) is 2924MPa, and the tensile strength in the 90° direction (perpendicular to the extension direction of the carbon fiber 101) is 71MPa. Due to the characteristics of carbon fiber 101, if the extension direction of the carbon fiber 101 in the carbon fiber layer is perpendicular to the extension direction of the folding axis of the support plate, a greater rebound force will be generated when the bending zone is bent, and the display module will be less likely to deform. If the extension direction of the carbon fiber 101 in the carbon fiber layer is parallel to the extension direction of the folding axis of the support plate, it is beneficial to the bending of the bending zone.

[0062] In an exemplary embodiment, the support plate includes a flat area and a bending area that can be bent along the folding axis, and the at least two carbon fiber layers include a first carbon fiber layer, and the extension direction of the carbon fibers 101 of the first carbon fiber layer is perpendicular to the extension direction of the folding axis;

[0063] And at least two of the carbon fiber layers include a second carbon fiber layer, the extension direction of the carbon fibers 101 of the second carbon fiber layer is parallel to the extension direction of the folding axis, or the extension direction of the carbon fibers 101 of the second carbon fiber layer is an acute angle or an obtuse angle to the extension direction of the folding axis.

[0064] The extension direction of the carbon fibers 101 in the first carbon fiber layer is perpendicular to the extension direction of the folding axis of the support plate, which will generate a greater rebound force when the bending area is bent, and the display module is less likely to deform. The extension direction of the carbon fibers 101 in the second carbon fiber layer is parallel to the extension direction of the folding axis, or the extension direction of the carbon fibers 101 in the second carbon fiber layer is an acute angle or an obtuse angle with the extension direction of the folding axis, which can reduce the rebound force generated by the support plate when it is bent to a certain extent, so that when it is used to support the display module, the tension on the upper display module is reduced, so as to reduce the risk of creases in the display module due to long-term tension.

[0065] refer to Figure 4-Figure 6 , Figure 4 is a schematic diagram of the decomposition of the carbon fiber substrate 1, Figure 3 Schematic diagram of the composite layer of carbon fiber substrate. Figure 6 : is a schematic cross-sectional view of a carbon fiber substrate. In an exemplary embodiment, the carbon fiber substrate 1 includes a first carbon fiber layer 11, a second carbon fiber layer 12, and a third carbon fiber layer 13 stacked one on another, the carbon fibers of the first carbon fiber layer 11 extend in a direction parallel to the direction of the folding axis, the carbon fibers of the second carbon fiber layer 12 extend in a direction perpendicular to the direction of the folding axis, and the carbon fibers of the third carbon fiber layer 13 extend in a direction parallel to the direction of the folding axis.

[0066] In an exemplary embodiment, a hollow structure is provided in the bending zone to reduce the difficulty of bending the bending zone.

[0067] Exemplarily, there may be many specific ways to set up the hollow structure. For example, the hollow structure includes multiple rows of hollow parts arranged in parallel, the extension direction of the hollow parts is parallel to the extension direction of the folding axis, and each row of the hollow parts includes multiple through holes arranged at intervals along the extension direction of the hollow parts.

[0068] Exemplarily, in order to prevent the bending zone from breaking when bending, the through holes in adjacent hollow portions are staggered. For example, multiple columns of the hollow portions include a first hollow portion and a second hollow portion, the first hollow portion includes a plurality of first through holes and a first connecting portion located between two adjacent first through holes, the second hollow portion includes a plurality of second through holes and a second connecting portion located between two adjacent second through holes, and the orthographic projection of the first connecting portion on the second hollow portion is located on the corresponding second through hole.

[0069] The embodiment of the present disclosure further provides a display module, including a flexible display panel, and a support plate arranged on the backlight side of the flexible display panel, wherein the support plate is the support plate mentioned above.

[0070] The shape of the support plate is consistent with the shape of the flexible display panel, so that the support plate is in full contact with the flexible display panel and supports and protects the flexible display panel.

[0071] In an exemplary embodiment, the display module also includes a flexible circuit board, the flexible display panel is electrically connected to the main board through the flexible circuit board, and one end of the flexible circuit board is electrically connected to the flexible display panel, and the other end of the flexible circuit board is electrically connected to the side of the support plate away from the flexible display panel to achieve a grounding function.

[0072] The embodiment of the present disclosure further provides a display device, comprising the above-mentioned display module.

[0073] The display device may be any product or component with a display function, such as a digital photo frame, a mobile phone, a tablet computer, etc., wherein the display device further includes a flexible circuit board, a printed circuit board and a backplane.

[0074] The embodiment of the present disclosure further provides a method for manufacturing a support plate, which is used to manufacture the above-mentioned support plate, wherein the conductive structure includes a conductive layer embedded in the first surface of the carbon fiber substrate, and the manufacturing method includes:

[0075] Provide carbon fiber prepreg;

[0076] A mold fixed with a conductive material is provided, and the carbon fiber prepreg is placed in the mold for hot pressing to form the support plate.

[0077] Exemplarily, the carbon fiber substrate includes multiple carbon fiber layers, and the step of providing the carbon fiber prepreg specifically includes:

[0078] A plurality of carbon fiber prepregs are provided, and the plurality of carbon fiber prepregs are stacked according to preset conditions, wherein the preset conditions include that the extension directions of the carbon fibers of the plurality of carbon fiber prepregs are arranged crosswise.

[0079] Exemplarily, the preset condition includes that the extension directions of the carbon fibers of the multiple layers of carbon fiber prepreg are arranged perpendicular to each other.

[0080] The embodiment of the present disclosure further provides a method for manufacturing a support plate, which is used to manufacture the above-mentioned support plate, wherein the conductive structure includes a conductive layer embedded in the first surface of the carbon fiber substrate, and the manufacturing method includes:

[0081] Provide carbon fiber prepreg;

[0082] After the carbon fiber prepreg is fixed in the mold, a conductive material is placed on the surface of the carbon fiber prepreg;

[0083] The conductive material and the carbon fiber prepreg are integrally hot-pressed to form the support plate.

[0084] Exemplarily, the carbon fiber substrate includes multiple carbon fiber layers, and the step of providing the carbon fiber prepreg specifically includes:

[0085] A plurality of carbon fiber prepregs are provided, and the plurality of carbon fiber prepregs are stacked according to preset conditions, wherein the preset conditions include that the extension directions of the carbon fibers of the plurality of carbon fiber prepregs are arranged crosswise.

[0086] Exemplarily, the preset condition includes that the extension directions of the carbon fibers of the multiple layers of carbon fiber prepreg are arranged perpendicular to each other.

[0087] The embodiment of the present disclosure further provides a method for manufacturing a support plate, which is used to manufacture the above-mentioned support plate, wherein the conductive structure includes conductive particles filled in the carbon fiber substrate, and the manufacturing method includes:

[0088] Provide carbon fiber prepreg;

[0089] heating and melting the carbon fiber prepreg, and filling the melted carbon fiber prepreg with conductive particles;

[0090] After curing, the support plate is formed.

[0091] The embodiment of the present disclosure also provides a method for manufacturing a support plate, which is used to manufacture the above-mentioned support plate, wherein the conductive structure includes a conductive layer embedded in the first surface of the carbon fiber substrate, and conductive particles filled in the carbon fiber substrate, and the manufacturing method includes:

[0092] Provide carbon fiber prepreg;

[0093] Filling the carbon fiber prepreg with conductive particles;

[0094] After the carbon fiber prepreg filled with conductive particles is fixed in a mold, a conductive material is placed on the surface of the carbon fiber prepreg; or, a mold with a conductive material fixed thereon is provided, and the carbon fiber prepreg is placed in the mold;

[0095] The conductive material and the carbon fiber prepreg are integrally hot-pressed to form the support plate.

[0096] Exemplarily, the carbon fiber substrate includes multiple carbon fiber layers, and the step of providing the carbon fiber prepreg specifically includes:

[0097] A plurality of carbon fiber prepregs are provided, and the plurality of carbon fiber prepregs are stacked according to preset conditions, wherein the preset conditions include that the extension directions of the carbon fibers of the plurality of carbon fiber prepregs are arranged crosswise.

[0098] Exemplarily, the preset condition includes that the extension directions of the carbon fibers of the multiple layers of carbon fiber prepreg are arranged perpendicular to each other.

[0099] There are a few points to note:

[0100] (1) The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure, and other structures may refer to the general design.

[0101] (2) For the sake of clarity, in the drawings used to describe the embodiments of the present disclosure, the thickness of layers or regions is exaggerated or reduced, that is, these drawings are not drawn according to the actual scale. It is understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, the element may be "directly" "on" or "under" the other element or there may be intermediate elements.

[0102] (3) In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0103] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A support plate for supporting a flexible display panel, characterized in that: It comprises a carbon fiber substrate and a conductive structure, and the carbon fiber substrate and the conductive structure are integrally formed by the same process.

2. The support plate according to claim 1, characterized in that: The conductive structure includes a conductive layer embedded in a first surface of the carbon fiber substrate, and a second surface of the conductive layer is exposed on the carbon fiber substrate.

3. The support plate according to claim 1, characterized in that: The thickness of the carbon fiber substrate is 0.1-0.2 mm.

4. The support plate according to claim 2, characterized in that: The thickness of the conductive layer is 10 um to 30 um.

5. The support plate according to claim 2, characterized in that: The material of the conductive layer is a conductive metal film or conductive metal powder.

6. The support plate according to claim 1, characterized in that: The conductive structure includes conductive particles filled in the carbon fiber matrix.

7. The support plate according to claim 1, characterized in that: The carbon fiber substrate includes at least one carbon fiber layer, and each of the carbon fiber layers includes carbon fibers arranged in parallel.

8. The support plate according to claim 1, characterized in that: The carbon fiber substrate comprises at least two carbon fiber layers, and the extension directions of the carbon fibers on two adjacent carbon fiber layers are arranged to cross each other.

9. The support plate according to claim 8, characterized in that: It comprises a flat area and a bending area bendable along a folding axis, and at least two of the carbon fiber layers comprise a first carbon fiber layer, wherein the extension direction of the carbon fibers of the first carbon fiber layer is perpendicular to the extension direction of the folding axis.

10. The support plate according to claim 8, characterized in that: It comprises a flat area and a bending area bendable along a folding axis, and at least two of the carbon fiber layers comprise a second carbon fiber layer, and the extension direction of the carbon fibers of the second carbon fiber layer is parallel to the extension direction of the folding axis.

11. A display module, characterized in that: It comprises a flexible display panel and a support plate arranged on the backlight side of the flexible display panel, wherein the support plate is the support plate according to any one of claims 1 to 10.

12. A display device, characterized in that: Includes the display module described in claim 11.

13. A method for manufacturing a support plate, used for manufacturing the support plate according to any one of claims 1 to 10, characterized in that: include: Provide carbon fiber prepreg; A mold fixed with a conductive material is provided, and the carbon fiber prepreg is placed in the mold for hot pressing to form the support plate.

14. A method for manufacturing a support plate, used for manufacturing the support plate according to any one of claims 1 to 10, characterized in that: include: Provide carbon fiber prepreg; After the carbon fiber prepreg is fixed in the mold, a conductive material is placed on the surface of the carbon fiber prepreg; The conductive material and the carbon fiber prepreg are integrally hot-pressed to form the support plate.

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