Display assembly and electronic device

Abstract

This application provides a display component and an electronic device. The display component has a flattened state and a closed state. The display component includes a screen and a graphene component. The screen includes a bent portion and a first sub-part and a second sub-part located on both sides of the bent portion. In the flattened state, the first sub-part, the bent portion, and the second sub-part are coplanar. In the closed state, the first sub-part and the second sub-part are folded relative to each other. At least a portion of the graphene component is located on one side of the bent portion, and both ends of the graphene component extend to one side of the first sub-part and the second sub-part, respectively. The graphene component has elastic expansion and contraction properties. By setting the graphene component, the heat from the high-heat areas in the display component and electronic device is evenly conducted and distributed to all corners of the entire body, achieving an efficient heat dissipation effect that balances the overall heat of the device. Furthermore, the elastic expansion and contraction properties of the graphene component ensure the structural integrity of the graphene component when switching between the flattened and closed states.

Description

Technical Field

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

[0002] As foldable electronic devices gradually develop, their thickness decreases and their specifications increase. However, foldable electronic devices generate significant heat. Existing heat dissipation technologies include using graphene heat dissipation layers to cool the entire device. However, ordinary graphene has weak stretchability, and the graphene heat dissipation layer is prone to breakage during the bending process of foldable electronic devices. If the graphene heat dissipation layer is placed outside the bending area and only distributed in the heat-concentrated areas of the foldable electronic device, the heat dissipation efficiency will be low due to localized heat conduction. Summary of the Invention

[0003] This application provides a display component and electronic device with excellent heat dissipation performance.

[0004] In a first aspect, one embodiment of this application provides a display component having a flattened state and a closed state. The display component includes a screen and a graphene component. The screen includes a bent portion and a first sub-part and a second sub-part located on both sides of the bent portion. In the flattened state, the first sub-part, the bent portion, and the second sub-part are coplanar. In the closed state, the first sub-part and the second sub-part are folded relative to each other. At least a portion of the graphene component is located on one side of the bent portion, and both ends of the graphene component extend to one side of the first sub-part and the second sub-part, respectively. The graphene component has elastic stretching properties.

[0005] The screen has a bendable structure, and the bending portion deforms during the relative folding or unfolding of the first and second sub-parts. The screen may include a display module and a support plate. The display module is a flexible display screen, and the support plate is located below the display module to support it and increase its structural rigidity. The screen includes a display surface and a back surface. The display surface refers to the surface on which the operating interface or image is displayed, and the back surface refers to the surface of the screen opposite to the back surface. Specifically, the display surface is the surface of the display module away from the support plate, and the back surface is the surface of the support plate away from the display module.

[0006] The graphene component possesses excellent thermal conductivity, enabling it to rapidly transfer heat from high-temperature areas to low-temperature areas in the environment. In one embodiment, the graphene component is located on the side of the support plate away from the display module. In another embodiment, the graphene component is disposed in close contact with the support plate in the screen. In yet another embodiment, when the display assembly is in a flattened state, the display module, the support plate, and the graphene component are sequentially stacked along the first direction.

[0007] At least a portion of the graphene component is located on one side of the bent portion, and both ends of the graphene component extend to one side of the first sub-part and the second sub-part, respectively, so that heat can be transferred along the second direction.

[0008] The graphene component can be unfolded into a flat state, and it can also be folded into a closed state. Furthermore, it can be unfolded or folded into an intermediate state, which can be any state between the flat and closed states. Due to its elastic and stretchable properties, the graphene component is a bendable structure and can move with the screen. When the display component is in the flat state, the graphene component is also in the flat state; when the display component is in the closed state, the graphene component is also in the closed state. The graphene component can flexibly extend or shorten without breaking when switching between the flat and closed states.

[0009] In one embodiment, the orthographic projection of the graphene component on the screen covers the entire or most of the screen. In another embodiment, the orthographic projection of the graphene component on the screen covers a portion of the screen. It is understood that the larger the area of ​​the orthographic projection of the graphene component on the screen, the better the heat dissipation effect of the graphene component on the display assembly.

[0010] The graphene component not only dissipates heat from the first and second sub-parts themselves, but also facilitates heat transfer between them. This evenly conducts and distributes heat from high-heat areas in the display assembly to all corners of the device. Specifically, heat from high-heat areas is conducted to low-heat areas, achieving an efficient heat dissipation effect that balances the overall heat of the device. Furthermore, the elasticity and stretchability of the graphene component ensures that it maintains its structural integrity when switching between flattened and closed states, preventing it from being torn and causing thermal conductivity failure.

[0011] In one possible implementation, the graphene component includes a first elastic segment and a first graphene segment connected together. The first elastic segment is located on one side of the first sub-part and is stretchable relative to the first sub-part. The first graphene segment is located on one side of the bent portion, and both ends of the first graphene segment extend to one side of the first sub-part and the second sub-part, respectively. At least a portion of the first elastic segment is fixed relative to the first sub-part, and the elongation of the first elastic segment is greater than the elongation of the first graphene segment.

[0012] The phrase "a portion of the first elastic segment is fixed relative to the first sub-part" means that the relative positional relationship between the portion of the first elastic segment and the first sub-part remains unchanged. When the first sub-part moves, the portion of the first elastic segment can move accordingly. In one embodiment, when the graphene component is in a flattened state, the first elastic segment is located on the side of the first graphene segment along the second direction closer to the first sub-part, and the portion of the first elastic segment is fixedly connected to the first graphene segment.

[0013] When the graphene component changes from a flattened state to a closed state, its length extends from L1 to L2, with an elongation of ΔL. The elongation rate of the graphene component when changing from a flattened state to a closed state is:

[0014]

[0015] Wherein, the length L1 of the graphene component refers to the length of the graphene component in the second direction when the graphene component is in a flattened state; the length L2 of the graphene component refers to the length of the graphene component after it is stretched when it is in a closed state, that is, the distance between the two ends of the graphene component away from the bending portion along the plate surface of the graphene component; and the length L3 of the graphene component refers to the length of the arc-shaped portion of the graphene component located on the corresponding side of the bending portion.

[0016] The method for calculating the elongation of the first graphene segment is the same as the method for calculating the elongation of the graphene component. The difference is that the length L1 of the first graphene segment refers to the length of the first graphene segment in the second direction when the graphene component is in a flattened state; the length L2 of the first graphene segment refers to the distance between the two ends of the first graphene segment away from the bending portion along the surface of the graphene component when the graphene component is in a closed state; L3 is the same as that of the graphene component.

[0017] The method for calculating the elongation of the first elastic segment is the same as the method for calculating the elongation of the graphene component. The difference is that the length L1 of the first elastic segment refers to the length of the first elastic segment in the second direction when the graphene component is in a flattened state; the length L2 of the first elastic segment refers to the length of the first elastic segment after stretching when the graphene component is in a closed state; and L3 is the same as that of the graphene component.

[0018] The first graphene segment has a relatively small elongation rate, which is insufficient to meet the elongation requirements of the graphene component when switching between flattened and closed states. However, by incorporating a first elastic segment with a larger elongation rate, the graphene component as a whole can meet the elongation requirements when switching between flattened and closed states. When the graphene component transitions from a flattened to a closed state, the overall elongation is primarily achieved through the elongation of the first elastic segment; conversely, when the graphene component transitions from a closed to a flattened state, the overall shortening is primarily achieved through the shortening of the first elastic segment.

[0019] In one possible implementation, a portion of the first elastic segment is fixedly connected to the back surface of the screen, thereby fixing the portion of the first elastic segment relative to the first sub-part. Exemplarily, a portion of the first elastic segment is bonded to the support plate, thereby fixing the portion of the first elastic segment to the back surface of the screen. In one embodiment, the side of the first graphene segment away from the first elastic segment is fixed relative to the second sub-part. In one embodiment, a portion of the first elastic segment is bonded to the support plate, the side of the first graphene segment away from the first elastic segment is bonded to the support plate, and both sides of the graphene component are fixedly connected to the support plate, allowing the graphene component to move with the screen.

[0020] In one possible implementation, the first graphene segment includes a first graphene layer and two first film layers located on opposite surfaces of the first graphene layer along a first direction, the first direction intersecting the surface of the first sub-section facing the first graphene segment. The first graphene layer includes multiple stacked monolayer graphene layers. The edges of the two first film layers are sealed to isolate the first graphene layer from the outside. A portion of the first elastic segment is connected to the first film layer. The first graphene layer is located on one side of the bent portion, and both ends of the first graphene layer extend to one side of the first sub-section and the second sub-section, respectively.

[0021] The first film layer provides protective support for the first graphene layer and has elastic stretching properties, allowing it to stretch or shrink as the first graphene layer stretches or shrinks. In one embodiment, the material of the first film layer includes, but is not limited to, natural rubber, polyurethane (PU), thermoplastic polyurethane rubber (TPU), polybutadiene (cis-butadiene rubber), polyisoprene (isoprene rubber), chloroprene rubber, butyl rubber, aramid paper, etc. In this case, the first film layer itself has a strong elastic elongation rate, maintaining a strong elastic elongation rate even in a thin state, and possesses recovery and rebound capabilities. In another embodiment, the first film layer has an elastic structure, which enhances the tensile elongation capacity of the first film layer. The material of the elastic structure includes, but is not limited to, titanium alloys, aluminum alloys, etc.

[0022] In one embodiment, when the graphene component is in a flattened state, the lengths of the two first film layers along the second direction are greater than the length of the first graphene layer along the second direction, and the two first film layers are bonded together to seal both ends of the first graphene layer along the second direction. In one embodiment, a portion of the first elastic segment is connected to the first film layer, and the first elastic segment at least partially overlaps with the two first film layers along the first direction. In one embodiment, the first elastic segment does not overlap with the first graphene layer along the first direction.

[0023] In one embodiment, the first film layer has good thermal conductivity, which allows it to quickly transfer heat from the environment to the first graphene layer, reducing the impact of the first film layer on the first graphene layer. In another embodiment, the first film layer has insulating properties. Since the first graphene layer is conductive, if it comes into direct contact with external components or circuits, it can easily cause short circuits. By wrapping the first graphene layer with the first film layer, the first graphene layer is insulated from the external environment, reducing the risk of short circuits caused by the first graphene layer.

[0024] In one embodiment, a portion of the first elastic segment is connected to the first membrane layer on the side near the first membrane layer, and a portion of the first elastic segment is connected to the first sub-part on the side near the first sub-part.

[0025] In one possible implementation, the elongation of the graphene component is greater than or equal to 5%.

[0026] Ensure that the graphene component has sufficient elongation so that it has enough stretch during the process of moving from a flattened state to a closed state, and that it will not break during the elongation process.

[0027] In one embodiment, the elongation of the graphene component is greater than or equal to 5% and less than or equal to 100%.

[0028] In one embodiment, the elongation of the graphene component is greater than or equal to 10% and less than or equal to 20%.

[0029] In one embodiment, the elongation of the graphene component is greater than or equal to 10% and less than or equal to 30%.

[0030] In one embodiment, the elongation of the graphene component is greater than or equal to 10% and less than or equal to 50%.

[0031] In one embodiment, the elongation of the graphene component is greater than or equal to 10% and less than or equal to 80%.

[0032] In one embodiment, the elongation ΔL of the graphene component is greater than or equal to 1 mm and less than or equal to 4 mm.

[0033] In one embodiment, the graphene component as a whole has elastic stretching properties, and the overall elongation of the graphene component is greater than or equal to 5%.

[0034] In one embodiment, the elastic stretching properties of different parts of the graphene component are different. While keeping the overall elongation of the graphene component greater than or equal to 5%, the elongation of a part of the graphene component can be less than 5%, and the elongation of another part of the graphene component is greater than or equal to 5%.

[0035] In some embodiments, the elongation of the graphene component can be set according to the elongation of the display component when it is bent.

[0036] In one possible implementation, the elongation of the first graphene layer is greater than or equal to 0.3% and less than 1%; the elongation of the first elastic segment is greater than or equal to 10%. In one embodiment, the elongation of the first graphene segment is greater than or equal to 0.3% and less than 1%. The elongation of the first graphene segment is relatively small, and relying solely on the first graphene segment is insufficient to meet the elongation requirements of the graphene component when switching between a flattened and closed state. By setting the first elastic segment with a larger elongation, the graphene component as a whole can meet the elongation requirements when switching between a flattened and closed state. When the graphene component changes from a flattened state to a closed state, the overall elongation of the graphene component is mainly achieved through the elongation of the first elastic segment; when the graphene component changes from a closed state to a flattened state, the overall shortening of the graphene component is mainly achieved through the shortening of the first elastic segment.

[0037] In one possible implementation, the graphene component further includes a second elastic segment located on one side of the second sub-part and capable of being stretched relative to the second sub-part. The second elastic segment is connected to the end of the first graphene segment away from the first elastic segment, and at least a portion of the second elastic segment is fixed relative to the second sub-part. The elongation of the second elastic segment is greater than that of the first graphene segment. "Partially fixed relative to the second sub-part" means that the relative positional relationship between the portion of the second elastic segment and the second sub-part remains unchanged; when the second sub-part moves, the portion of the second elastic segment can move accordingly.

[0038] In one embodiment, when the graphene component is in a flattened state, the second elastic segment is located on the side of the first graphene segment along the second direction closer to the second sub-part, and a portion of the second elastic segment is fixedly connected to the first graphene segment. In another embodiment, when the graphene component is in a flattened state, the first elastic segment and the second elastic segment are located on opposite sides of the graphene component along the second direction. In yet another embodiment, the positions of the second elastic segment and the first elastic segment are interchangeable, with the second elastic segment located on one side of the first sub-part and the first elastic segment located on one side of the second sub-part.

[0039] In one embodiment, the elongation rates of the second elastic segment and the first elastic segment can be the same or different, to adapt to the needs of different products.

[0040] In one embodiment, the elongation of the second elastic segment is greater than or equal to 10% to ensure that the graphene component meets the stretching requirements. The calculation method for the elongation of the second elastic segment is the same as that for the graphene component, except that the length L1 of the second elastic segment refers to its length in the second direction when the graphene component is in a flattened state; the length L2 of the second elastic segment refers to its length after stretching when the graphene component is in a closed state; and L3 is the same as that of the graphene component.

[0041] In one embodiment, the total elongation of the second elastic segment and the first elastic segment is greater than or equal to 10%. When the graphene component changes from a flattened state to a closed state, the overall elongation of the graphene component is mainly achieved by the elongation of the second elastic segment and the first elastic segment. When the graphene component changes from a closed state to a flattened state, the overall shortening of the graphene component is mainly achieved by the shortening of the second elastic segment and the first elastic segment.

[0042] In one embodiment, a portion of the second elastic segment is fixedly connected to the back surface of the screen so that the portion of the second elastic segment is fixed relative to the second sub-part.

[0043] In one embodiment, a portion of the second elastic segment is bonded to the support plate and fixedly connected to the back of the screen.

[0044] In one embodiment, a portion of the first elastic segment is bonded to the support plate, and a portion of the second elastic segment is bonded to the support plate on the side away from the first elastic segment. Both sides of the graphene component are fixedly connected to the support plate, so that the graphene component can move with the screen.

[0045] In one embodiment, the second elastic segment includes a fourth segment, a fifth segment, and a sixth segment connected in sequence. The fourth segment is connected to the back surface of the second sub-part and fixed relative to the second sub-part. The fifth segment is stretchable relative to the second sub-part, and the sixth segment is connected to the first graphene segment. The back surface of the second sub-part refers to the surface of the second sub-part close to the graphene component along the first direction. In one embodiment, the fourth segment is connected to the side of the support plate away from the display module. The fifth segment is neither connected to the second sub-part nor to the first graphene segment, and can freely extend or shorten when the graphene component switches between a flattened state and a closed state.

[0046] In one embodiment, the elongation rates of the fourth, fifth, and sixth segments can be the same or different. In one embodiment, the elongation rate of the fifth segment is greater than or equal to 10%, and the overall elongation or shortening of the graphene component is mainly achieved by the elongation or shortening of the fifth segment when the graphene component switches between a flattened state and a closed state.

[0047] In one embodiment, the sixth segment is connected to the first film layer on the side away from the screen, the fourth segment is connected to the screen, and in the first direction, the fifth segment forms a gap with the screen to allow the fifth segment to freely extend or shorten. This arrangement of the second elastic segments can reduce the thickness of the display assembly in the first direction. In one embodiment, the display assembly further includes a third adhesive layer located between the fourth segment and the back surface of the second sub-part to connect the fourth segment to the second sub-part, and the surface of the first graphene segment away from the second sub-part is bonded to the sixth segment.

[0048] First, the end of the first graphene segment near the second elastic segment along the second direction is an adhesive structure of two first film layers. The thickness of the end of the first graphene segment near the second elastic segment along the second direction is smaller than the thickness of other parts of the first graphene segment. The sixth segment is connected to the first film layer, and the sixth segment and the two first film layers overlap at least partially along the first direction. The sixth segment and the first graphene layer do not overlap along the first direction, so that the thickness at the connection between the sixth segment and the first film layer is basically the same as the thickness of other parts of the first graphene segment. This makes the graphene component more uniform overall, which is more conducive to the close fit between the graphene component and the screen and other components, and facilitates heat dissipation.

[0049] Secondly, the sixth segment is connected to the side of the first film layer away from the screen. In the first direction, the fourth and fifth segments are spaced apart from the second sub-part. The third adhesive layer is disposed in the gap between the fourth segment and the second sub-part. No additional space is needed to accommodate the third adhesive layer. After the fourth segment and the second sub-part are connected through the third adhesive layer, the graphene component becomes more uniform and the surface is smoother. On the one hand, this is more conducive to the graphene component being tightly attached to the screen and other components, facilitating heat dissipation. On the other hand, it can save space, reduce the thickness of the display component, and make the display component suitable for miniaturized scenarios.

[0050] In one possible implementation, the first elastic segment includes a first segment, a second segment, and a third segment connected in sequence, wherein the first sub-part includes a display surface and a back surface disposed opposite to each other, the first segment is connected to the back surface of the first sub-part and fixed relative to the first sub-part, the second segment is stretchable relative to the first sub-part, the third segment is connected to the first graphene segment, and the elongation of the second segment is greater than the elongation of the first segment and greater than the elongation of the third segment.

[0051] In one embodiment, the first segment is connected to the side of the support plate away from the display module. The second segment is neither connected to the first sub-part nor to the first graphene segment, and can freely extend or shorten when the graphene component switches between a flattened state and a closed state.

[0052] In one embodiment, the elongation rates of the first, second, and third segments can be the same or different. In one embodiment, the elongation rate of the second segment is greater than or equal to 10%. When the graphene component switches between a flattened and closed state, the overall elongation or shortening of the graphene component is mainly achieved by the elongation or shortening of the second segment. The calculation method for the elongation rate of the second segment is the same as that for the graphene component itself. The difference is that the length L1 of the second segment refers to the length of the second segment in the second direction when the graphene component is in a flattened state; the length L2 of the second segment refers to the length of the second segment after stretching when the graphene component is in a closed state; and L3 is the same as that of the graphene component.

[0053] In one embodiment, the first elastic segment is an elastic material, such as thermoplastic polyurethane elastomer rubber, and the elongation and shortening of the first elastic segment are achieved through the elasticity and stretchability of the elastic material itself. In another embodiment, the first elastic segment has an elastic structure that can elongate or shorten along the second direction, and the elongation and shortening of the first elastic segment are achieved through the stretchability of the structure. In yet another embodiment, the second segment has an elastic structure, which is formed by etching a metal sheet. It is understood that the elastic structure is not limited, as long as it can elongate or shorten along the second direction.

[0054] In one embodiment, the third segment is connected to the first film layer on the side away from the screen, the first segment is connected to the screen, and in the first direction, the second segment forms a gap with the screen so that the second segment can freely extend or shorten. This arrangement of the first elastic segments can reduce the thickness of the display component in the first direction.

[0055] In one possible implementation, the display assembly further includes a first adhesive layer located between the back side of the first segment and the first sub-part to connect the first segment to the first sub-part, wherein the surface of the first graphene segment away from the first sub-part is bonded to the third segment.

[0056] First, the end of the first graphene segment near the first elastic segment along the second direction is an adhesive structure of two first film layers. The thickness of the end of the first graphene segment near the first elastic segment along the second direction along the first direction is smaller than the thickness of other parts of the first graphene segment. The third segment is connected to the first film layer, and the third segment and the two first film layers at least partially overlap along the first direction. The third segment and the first graphene layer do not overlap along the first direction, so that the thickness of the graphene component at the connection between the third segment and the first film layer is basically the same as the thickness of other parts of the first graphene segment. This makes the graphene component more uniform overall, which is more conducive to the close adhesion of the graphene component to the screen and other components, and facilitates heat dissipation.

[0057] Secondly, the third segment is connected to the side of the first film layer away from the screen. In the first direction, the first segment and the second segment are spaced apart from the first sub-part. The first adhesive layer is disposed in the gap between the first segment and the first sub-part. No additional space is needed to accommodate the first adhesive layer. After the first segment and the first sub-part are connected through the first adhesive layer, the graphene component becomes more uniform and the surface is smoother. On the one hand, this is more conducive to the graphene component being tightly attached to the screen and other components, facilitating heat dissipation. On the other hand, it can save space, reduce the thickness of the display component, and make the display component suitable for miniaturized scenarios.

[0058] In one possible implementation, the display component further includes a mid-frame located on the side of the graphene component away from the screen; the first elastic segment includes a first segment, a second segment, and a third segment connected in sequence, the first segment being connected to the mid-frame and fixed relative to the first sub-part, the second segment being stretchable relative to the mid-frame, and the third segment being connected to the first graphene segment. The side of the first segment away from the first sub-part is connected to the mid-frame, and the side of the first segment near the first sub-part can contact or abut against the first sub-part, and the side of the first segment near the first sub-part can also be connected to the first sub-part.

[0059] In one embodiment, the end of the first graphene segment away from the first elastic segment along the second direction is connected to the middle frame.

[0060] In one embodiment, the first segment is connected to the middle frame, and the end of the first graphene segment away from the first elastic segment along the second direction is connected to the first sub-part.

[0061] In one embodiment, the first segment is connected to the first sub-part, and the end of the first graphene segment away from the first elastic segment along the second direction is connected to the middle frame.

[0062] The middle frame can be unfolded to a flat state, and it can also be folded to a closed state. Furthermore, the middle frame can be unfolded or folded to an intermediate state, which can be any state between the flat and closed states. The middle frame can move with the screen; when the display component is in the flat state, the middle frame is also in the flat state; when the display component is in the closed state, the graphene component is also in the closed state.

[0063] The mid-frame can be used to fix the screen and protect it. The mid-frame can also be used to prevent slippage and enhance the signal strength and structural strength of the display components.

[0064] In one possible implementation, the display assembly further includes a second adhesive layer located between the first segment and the mid-frame to connect the first segment to the mid-frame, wherein the surface of the first graphene segment away from the mid-frame is bonded to the third segment.

[0065] First, the third segment is connected to the side of the first film layer away from the middle frame, and the third segment and the two first film layers overlap at least partially along the first direction. The third segment and the first graphene layer do not overlap along the first direction, so that the thickness of the connection between the third segment and the first film layer is basically the same as the thickness of other parts of the first graphene segment. This makes the graphene component more uniform overall, which is more conducive to the close fit between the graphene component and the screen and other components, and facilitates heat dissipation.

[0066] Secondly, the third segment is connected to the side of the first film layer near the screen. In the first direction, the first segment and the second segment are spaced apart from the middle frame. The second adhesive layer is disposed in the gap between the first segment and the middle frame. No additional space is needed to accommodate the second adhesive layer. After the first segment and the middle frame are connected by the second adhesive layer, the graphene component becomes more uniform and the surface is smoother. On the one hand, this is more conducive to the graphene component being tightly attached to the screen, the middle frame and other components, which facilitates heat dissipation. On the other hand, it can save space, reduce the thickness of the display component, and make the display component suitable for miniaturized scenarios.

[0067] In one embodiment, the graphene component further includes a second elastic segment located at the end of the first graphene segment away from the first elastic segment and connected to the first graphene segment, with a portion of the second elastic segment fixedly connected to the mid-frame. In another embodiment, the second elastic segment is fixedly connected to the mid-frame, and the first elastic segment is fixedly connected to the screen.

[0068] In one embodiment, the second elastic segment includes the fourth segment, the fifth segment, and the sixth segment connected in sequence. The fourth segment is connected to the side of the mid-frame near the screen, the fifth segment is stretchable relative to the mid-frame, and the sixth segment is connected to the first graphene segment. In another embodiment, the sixth segment is connected to the first film layer near the screen, the fourth segment is connected to the mid-frame, and in the first direction, the fifth segment forms a gap with the screen to allow it to freely extend or shorten. This arrangement of the second elastic segments can reduce the thickness of the display component in the first direction.

[0069] In one embodiment, the display component further includes a fourth adhesive layer located between the fourth segment and the mid-frame to connect the fourth segment to the mid-frame. The surface of the first graphene segment away from the mid-frame is bonded to the sixth segment. Firstly, the sixth segment is connected to the side of the first film layer away from the mid-frame, and the sixth segment at least partially overlaps with two of the first film layers along the first direction, while the sixth segment does not overlap with the first graphene layer along the first direction. This ensures that the thickness at the connection point between the sixth segment and the first film layer is substantially the same as the thickness of other parts of the first graphene segment, thereby making the graphene component more uniform overall and facilitating a tighter fit between the graphene component and the screen, the mid-frame, and other components, thus aiding in heat dissipation.

[0070] Secondly, the sixth segment is connected to the side of the first film layer away from the middle frame. In the first direction, the fourth segment and the fifth segment are spaced apart from the middle frame. The fourth adhesive layer is disposed in the gap between the fourth segment and the second sub-part. No additional space is needed to accommodate the fourth adhesive layer. After the fourth segment is connected to the middle frame through the fourth adhesive layer, the graphene component becomes more uniform and the surface is smoother. On the one hand, this is more conducive to the graphene component being tightly attached to the screen, the middle frame and other components, which facilitates heat dissipation. On the other hand, it can save space, reduce the thickness of the display component, and make the display component suitable for miniaturized scenarios.

[0071] In one possible implementation, the graphene component further includes a second graphene segment located on one side of the first sub-part. The second graphene segment and the first graphene segment are at least partially stacked along a first direction, which intersects the surface of the second graphene segment facing the first sub-part. The second graphene segment is stacked with the first graphene segment, the first graphene segment is slidable relative to the second graphene segment, and the second graphene segment is fixed relative to the first sub-part. The arrangement of the second graphene segment does not affect the free elongation or shortening of the first graphene segment, the first elastic segment, or the second elastic segment.

[0072] In one embodiment, the first direction intersects perpendicularly with the surface of the second graphene segment facing the first sub-part. In another embodiment, a high-heat-generating component is located at the position corresponding to the first sub-part, i.e., the position corresponding to the first sub-part is a high-heat-generating area. Adding the second graphene segment to the high-heat-generating area can improve the heat dissipation capacity of the graphene component.

[0073] In one embodiment, the elongation of the second graphene segment is greater than or equal to 0.3% and less than 1%. The calculation method for the elongation of the second graphene segment is the same as that for the graphene component, except that the length L1 of the second graphene segment refers to its length in the second direction when the graphene component is in a flattened state; the length L2 of the second graphene segment refers to its length after stretching when the graphene component is in a closed state; and L3 is the same as that of the graphene component.

[0074] In one embodiment, the elongation of the second graphene segment can be any value. Since the second graphene segment is located only on one side of the first sub-part, the elongation and shortening of the second graphene segment are not involved when the display component switches between the flattened state and the closed state. Therefore, there is no requirement for the elongation of the second graphene segment.

[0075] In one embodiment, the second graphene segment has the same structure as the first graphene segment, and the second graphene segment also includes a graphene layer and two film layers located on opposite surfaces of the graphene layer along the first direction, with the edges of the two film layers sealed to isolate the graphene layer from the outside. In one embodiment, one or both ends of the second graphene segment along the second direction may also be connected to an elastic segment.

[0076] In one embodiment, the orthographic projection of the second graphene segment onto the first sub-part covers the entirety or most of the first sub-part to improve heat dissipation.

[0077] In one embodiment, the orthographic projection of the second graphene segment onto the first sub-part covers a portion of the first sub-part. It is understood that the larger the area of ​​the orthographic projection of the second graphene segment onto the first sub-part, the better the heat dissipation capability of the graphene component can be utilized.

[0078] In one embodiment, the second graphene segment is located between the first graphene segment and the first sub-part, and the second graphene segment is fixedly connected to the first sub-part. This can be understood as the entire second graphene segment being fixedly connected to the first sub-part, or a portion of the second graphene segment being fixedly connected to the first sub-part, or the second graphene segment being fixedly connected to the first sub-part on one or both sides along the second direction. In one embodiment, the second graphene segment is fixedly connected to the side of the first segment closest to the first sub-part.

[0079] In one embodiment, the second graphene segment is located on the side of the first graphene segment away from the first sub-part, and the second graphene segment is fixedly connected to the middle frame. This can be understood as the entire second graphene segment being fixedly connected to the middle frame, or a portion of the second graphene segment being fixedly connected to the middle frame. Alternatively, the second graphene segment may be fixedly connected to the middle frame on one or both sides along the second direction. In another embodiment, the second graphene segment is fixedly connected to the side of the first segment closest to the middle frame.

[0080] In one possible implementation, the graphene component further includes a third graphene segment located on one side of the second sub-part, the third graphene segment being at least partially stacked with the first graphene segment along the first direction. The third graphene segment is stacked with the first graphene segment, the first graphene segment is slidable relative to the third graphene segment, and the third graphene segment is fixed relative to the second sub-part. The arrangement of the third graphene segment does not affect the free elongation or shortening of the first graphene segment, the first elastic segment, or the second elastic segment.

[0081] In one embodiment, a high-heat-generating component is located at the position corresponding to the second sub-part. Adding the third graphene segment to one side of the second sub-part enhances the heat dissipation capacity of the graphene component. In another embodiment, a low-heat-generating component is located at the position corresponding to the second sub-part, and a high-heat-generating component is located at the position corresponding to the first sub-part. The second graphene segment allows heat to be transferred more quickly from the side of the graphene component located in the first sub-part to the side located in the second sub-part. The third graphene segment allows heat to diffuse rapidly, enabling better and more even heat conduction and distribution of the display component's heat to all corners of the entire device, thus achieving a balanced heat dissipation effect. In yet another embodiment, a high-heat-generating component is located at the position corresponding to the second sub-part, and a low-heat-generating component is located at the position corresponding to the first sub-part.

[0082] In one embodiment, the orthographic projection of the third graphene segment onto the second sub-part covers the entirety or most of the second sub-part. In another embodiment, the orthographic projection of the third graphene segment onto the second sub-part covers a portion of the second sub-part. It is understood that the larger the area of ​​the orthographic projection of the third graphene segment onto the second sub-part, the better the heat dissipation capability of the graphene component can be utilized.

[0083] In one embodiment, the elongation of the third graphene segment is greater than or equal to 0.3% and less than 1%. The calculation method for the elongation of the third graphene segment is the same as that for the graphene component, except that the length L1 of the third graphene segment refers to its length in the second direction when the graphene component is in a flattened state; the length L2 of the third graphene segment refers to its length after stretching when the graphene component is in a closed state; and L3 is the same as that of the graphene component.

[0084] In one embodiment, the elongation of the third graphene segment can be any value. Since the third graphene segment is located only on one side of the first sub-part, the elongation and shortening of the third graphene segment are not involved when the display component switches between the flattened state and the closed state. Therefore, there is no requirement for the elongation of the third graphene segment.

[0085] In one embodiment, the elongation of the third graphene segment can be the same as or different from the elongation of the second graphene segment.

[0086] In one embodiment, the third graphene segment has the same structure as the first or second graphene segment, and the third graphene segment also includes a graphene layer and two film layers located on opposite surfaces of the graphene layer along the first direction, with the edges of the two film layers sealed to isolate the graphene layer from the outside. In one embodiment, one or both ends of the third graphene segment along the second direction may also be connected to an elastic segment.

[0087] In one embodiment, the third graphene segment is located between the first graphene segment and the second sub-part. The third graphene segment is fixedly connected to the second sub-part. This can be understood as the entire third graphene segment being fixedly connected to the second sub-part, or a portion of the third graphene segment being fixedly connected to the second sub-part. Alternatively, the third graphene segment may be fixedly connected to the second sub-part on one or both sides along the second direction.

[0088] In one embodiment, the graphene component further includes a second elastic segment, a portion of which is connected to the end of the first graphene segment away from the first elastic segment, and the third graphene segment is fixedly connected to the side of the fourth segment near the second sub-part. In one embodiment, the third graphene segment is located between the first graphene segment and the second sub-part, and the second graphene segment is located between the first graphene segment and the first sub-part. By placing both the third and second graphene segments between the first graphene segment and the screen, space can be saved in the display component, and the thickness of the display component can be reduced.

[0089] In one embodiment, the third graphene segment is located on the side of the first graphene segment away from the second sub-part. In another embodiment, the third graphene segment is located on the side of the first graphene segment away from the second sub-part, and the third graphene segment is fixedly connected to the middle frame. This can be understood as the entire third graphene segment being fixedly connected to the middle frame, or a portion of the third graphene segment being fixedly connected to the middle frame, or the third graphene segment being fixedly connected to the middle frame on one or both sides along the second direction. In one embodiment, the graphene component further includes a second elastic segment, a portion of which is connected to the end of the first graphene segment away from the first elastic segment, and the third graphene segment is fixedly connected to the side of the fourth segment near the middle frame. In one embodiment, both the third and second graphene segments are located on the side of the first graphene segment away from the screen, which can save space in the display component and reduce its thickness. In one embodiment, one of the third graphene segment and the second graphene segment is located on the side of the first graphene segment away from the screen, and the other of the third graphene segment and the second graphene segment is located between the first graphene segment and the screen.

[0090] In one possible implementation, the graphene component includes a second graphene layer and two second film layers located on opposite surfaces of the second graphene layer along a first direction, the first direction intersecting the surface of the first sub-part facing the graphene component. The second graphene layer comprises multiple stacked monolayer graphene layers. The edges of the two second film layers are sealed to isolate the second graphene layer from the outside. The second graphene layer is located on one side of the bent portion, and both ends of the second graphene layer extend to one side of the first sub-part and the second sub-part, respectively. The elongation of the second graphene layer is greater than or equal to 5%. The elongation of the second graphene layer is calculated using the same method as the elongation of the graphene component, except that the length L1 of the second graphene layer refers to the length of the second graphene layer in the second direction when the graphene component is in a flattened state; the length L2 of the second graphene layer refers to the length of the second graphene layer after stretching when the graphene component is in a closed state; and L3 is the same as that of the graphene component.

[0091] When the graphene component switches between a flattened state and a closed state, the entire graphene component can freely stretch or shrink. The second graphene layer has a sufficiently large elongation to meet the elongation requirements of the graphene component when switching between the flattened and closed states, ensuring that the graphene component maintains its structural integrity and is not torn apart, thus preventing the failure of its thermal conductivity.

[0092] The graphene component allows heat to be evenly conducted and distributed to all corners of the display assembly. In particular, heat is transferred between corresponding parts of the first sub-part and corresponding positions of the second sub-part, thereby achieving a heat dissipation effect that balances the overall heat of the device.

[0093] In one embodiment, the thickness of the graphene component is between 0.004 mm and 0.02 mm. In one embodiment, the graphene component is fixedly connected to the screen. In one embodiment, the graphene component is bonded to the screen, wherein the bonding method can be that the entire side of the graphene component near the screen is bonded to the screen, or a portion of the side of the graphene component near the screen is bonded to the screen, or both ends of the graphene component along the second direction are bonded to the screen.

[0094] In one embodiment, the graphene component is bonded to the mid-frame. The bonding method can be that one side of the graphene component near the mid-frame is entirely bonded to the mid-frame, or a portion of the graphene component near the mid-frame is bonded to the mid-frame. Alternatively, both ends of the graphene component along the second direction can be bonded to the mid-frame. In another embodiment, a portion of the graphene component is connected to the mid-frame, and a portion of the graphene component is connected to the screen.

[0095] In one embodiment, when the graphene component is in a flattened state, both surfaces of the graphene component in the first direction are flat, and the graphene component has a uniform thickness in the first direction. In another embodiment, the graphene component may also have a non-uniform thickness in the first direction, and the two surfaces of the graphene component along the first direction may be set to an uneven state to fit as closely as possible with other components and ensure the heat dissipation capacity of the graphene component.

[0096] In one possible implementation, the second graphene layer includes a first graphene sub-section, a second graphene sub-section, and a third graphene sub-section arranged side by side and interconnected with each other. The first graphene sub-section, the second graphene sub-section, and the third graphene sub-section are respectively located on one side of the first sub-section, the bent portion, and the second sub-section. The thickness of the second graphene sub-section is greater than the thickness of the first graphene sub-section and the third graphene sub-section.

[0097] The thicknesses of the first graphene sub-part, the second graphene sub-part, and the third graphene sub-part all refer to their thickness in the first direction when they are in a flattened state. The thickness of the second graphene sub-part is greater than the thickness of the first graphene sub-part, and the thickness of the second graphene sub-part is greater than the thickness of the third graphene sub-part.

[0098] When the second graphene layer is stretched, its thickness decreases. The second graphene sub-section located on one side of the bending portion is a region with greater deformation. When the second graphene layer is stretched, the thickness reduction of the second graphene sub-section is significant, increasing the thickness of the second graphene sub-section when it is flattened. When the second graphene layer is closed, the thickness of the second graphene sub-section decreases, so that the thickness of the second graphene sub-section in the closed state is substantially equal to that of the first and third graphene sub-sections. The overall thickness of the second graphene layer tends to be uniform, ensuring that the heat dissipation of the graphene component can be continuous, stable, and balanced.

[0099] In one possible implementation, the display component further includes a mid-frame located on the side of the graphene component away from the screen, and the mid-frame has a groove in a region near the second graphene sub-part, the second graphene sub-part being at least partially housed in the groove.

[0100] In one embodiment, the graphene component is disposed close to the middle frame on the side near the middle frame. When the side of the graphene component near the middle frame is flat, the side of the middle frame near the graphene component is also flat. When the thickness of the second graphene sub-part is increased when it is flattened, the second graphene sub-part will bulge towards the middle frame. At this time, the groove is provided in the area of ​​the middle frame near the second graphene sub-part to accommodate the thickened part of the second graphene sub-part, so that the overall thickness of the display component tends to be uniform.

[0101] In one possible implementation, the graphene component further includes a second graphene segment located on one side of the first sub-part, the second graphene segment being at least partially stacked with the second film layer along the first direction, and the elongation of the graphene layer in the second graphene segment being less than the elongation of the second graphene layer.

[0102] In one embodiment, the graphene component further includes a second graphene segment and a third graphene segment. The second graphene segment is located on one side of the first sub-part and is at least partially stacked with the second film layer along the first direction. The third graphene segment is located on one side of the second sub-part and is at least partially stacked with the second film layer along the first direction. In one embodiment, the second graphene segment and the third graphene segment are located on the same side or different sides of the second graphene layer along the first direction. In one embodiment, the second graphene segment and the third graphene segment are located on the side of the second graphene layer closer to the screen. In one embodiment, the second graphene segment and the third graphene segment are located on the side of the second graphene layer away from the screen.

[0103] In one possible implementation, the display assembly further includes a first middle frame, a second middle frame, and a door panel. The first middle frame is located on the side of the graphene component away from the first middle frame, and the second middle frame is located on the side of the graphene component away from the second middle frame. The portion of the graphene component located on the bent portion side has an opening filled with adhesive. The adhesive connects the door panel and the bent portion, thus fixing the door panel to the bent portion. The door panel is located on the side of the graphene component away from the opening. When the display assembly switches from a flattened state to a closed state, the bent portion of the screen is fixedly connected to the door panel, ensuring the movement path of the screen in the bent state.

[0104] In one embodiment, when the display component is in a flattened state, the first middle frame, the door panel, and the second middle frame are coplanar and abut against each other sequentially to form a complete panel. When the display component is in a closed state, the first middle frame and the second middle frame are folded relative to each other. In another embodiment, when the display component is in a flattened state, the first middle frame, the door panel, and the second middle frame may also be spaced apart.

[0105] In one embodiment, the graphene component has multiple openings on one side of the bent portion to enhance the adhesion between the door panel and the bent portion. In another embodiment, the display assembly may include multiple door panels, which allow for smooth bending of the first middle frame, the second middle frame, and the entire door panel.

[0106] Secondly, one embodiment of this application provides an electronic device having a flattened state and a closed state, including a housing device, a screen, and a graphene component. The housing device includes a first housing, a second housing, and a folding assembly. The folding assembly connects the first housing and the second housing, and the first housing and the second housing can be relatively unfolded or folded relative to each other by the movement of the folding assembly. The screen is mounted on the housing device and includes a bent portion and a first sub-part and a second sub-part located on both sides of the bent portion. The first sub-part is located on one side of the first housing, the second sub-part is located on one side of the second housing, and the bent portion is located on one side of the folding assembly. In the flattened state, the first sub-part, the bent portion, and the second sub-part are coplanar. In the closed state, the first sub-part and the second sub-part are folded relative to each other. The graphene component is located between the housing device and the screen. At least a portion of the graphene component is located on one side of the bent portion, and both ends of the graphene component extend to one side of the first sub-part and the second sub-part, respectively. The graphene component has elastic stretching properties.

[0107] The electronic device can be a foldable electronic product such as a mobile phone, tablet computer, laptop computer, or wearable device. The housing device is used to support the screen. The graphene component and the screen can be installed separately on the housing device, or the graphene component and the screen can be assembled together and installed as a display component on the housing device.

[0108] The housing device can be unfolded to a flattened state; the housing device can also be folded to a closed state; the housing device can also be unfolded or folded to an intermediate state, which can be any state between the flattened and closed states. The screen has a bendable structure, and the screen moves with the housing device. The housing device can drive the screen to flatten or fold, so that the electronic device can be unfolded or folded to a flattened state, a closed state, or an intermediate state. In one embodiment, when the electronic device is in the closed state, the screen is located inside the housing device, and the electronic device is an inward-folding screen device. In another embodiment, when the electronic device is in the closed state, the screen is located outside the housing device, and the electronic device is an outward-folding screen device. In one embodiment, the electronic device may also include multiple components, which can be installed inside the housing device. During the operation of the electronic device, the different components inside the housing device generate different amounts of heat.

[0109] When the electronic device is in a flattened state, the screen, the graphene component, the housing device, and each component of the housing device are in an open state; when the electronic device is in a closed state, the screen, the graphene component, the housing device, and each component of the housing device are in a closed state; when the electronic device is in an intermediate state, the screen, the housing device, and each component of the housing device are in an intermediate state.

[0110] The graphene component not only dissipates heat from the first shell, the second shell, the first sub-part, and the second sub-part themselves, but also facilitates heat transfer between the first shell and the second shell, and between the first sub-part and the second sub-part. This evenly conducts and distributes heat from high-heat areas in the electronic device to all corners of the entire body. In particular, heat from high-heat areas is conducted to low-heat areas, achieving an efficient heat dissipation effect that balances the overall heat of the device. Furthermore, the elasticity and stretchability of the graphene component ensures that the graphene component maintains its structural integrity when switching between a flattened and closed state, preventing it from being torn and causing the thermal conductivity to fail.

[0111] In one possible implementation, the graphene component includes a first elastic segment and a first graphene segment connected together. The first elastic segment is located on one side of the first sub-part and is stretchable relative to the first sub-part. The first graphene segment is located on one side of the bent portion, and both ends of the first graphene segment extend to one side of the first sub-part and the second sub-part, respectively. At least a portion of the first elastic segment is fixed relative to the first sub-part, and the elongation of the first elastic segment is greater than the elongation of the first graphene segment.

[0112] In one possible implementation, the graphene component further includes a second elastic segment located on one side of the second sub-part and capable of being stretched relative to the second sub-part. The second elastic segment is connected to the end of the first graphene segment away from the first elastic segment, and at least a portion of the second elastic segment is fixed relative to the second sub-part. The elongation of the second elastic segment is greater than the elongation of the first graphene segment.

[0113] In one possible implementation, the first elastic segment includes a first segment, a second segment, and a third segment connected in sequence, wherein the first sub-part includes a display surface and a back surface disposed opposite to each other, the first segment is connected to the back surface of the first sub-part and fixed relative to the first sub-part, the second segment is stretchable relative to the first sub-part, the third segment is connected to the first graphene segment, and the elongation of the second segment is greater than the elongation of the first segment and greater than the elongation of the third segment.

[0114] In one possible implementation, the electronic device further includes a first adhesive layer located between the back surfaces of the first segment and the first sub-part to connect the first segment to the first sub-part, wherein the surface of the first graphene segment away from the first sub-part is bonded to the third segment.

[0115] In one possible implementation, the electronic device further includes a mid-frame located on the side of the graphene component away from the screen; the first elastic segment includes a first segment, a second segment, and a third segment connected in sequence, the first segment being connected to the mid-frame and fixed relative to the first sub-part, the second segment being stretchable relative to the mid-frame, and the third segment being connected to the first graphene segment.

[0116] In one possible implementation, the graphene component further includes a second graphene segment located on one side of the first sub-part, the second graphene segment being at least partially stacked with the first graphene segment along a first direction that intersects with the surface of the second graphene segment facing the first sub-part.

[0117] In one possible implementation, the graphene component further includes a third graphene segment located on one side of the second sub-part, the third graphene segment being at least partially stacked with the first graphene segment along the first direction.

[0118] In one possible implementation, the first graphene segment includes a first graphene layer and two first film layers located on opposite surfaces of the first graphene layer along a first direction, the first direction intersecting the surface of the first sub-part facing the first graphene segment. The first graphene layer comprises multiple stacked monolayer graphene layers. The edges of the two first film layers are sealed to isolate the first graphene layer from the outside. A portion of the first elastic segment is connected to the first film layer. The first graphene layer is located on one side of the bent portion, and both ends of the first graphene layer extend to one side of the first sub-part and the second sub-part, respectively. The elongation of the first graphene layer is greater than or equal to 0.3% and less than 1%. The elongation of the first elastic segment is greater than or equal to 10%.

[0119] In one possible implementation, the graphene component includes a second graphene layer and two second film layers located on opposite surfaces of the second graphene layer along a first direction, the first direction intersecting the surface of the first sub-part facing the graphene component. The second graphene layer comprises multiple stacked monolayer graphene layers. The edges of the two second film layers are sealed to isolate the second graphene layer from the outside. The second graphene layer is located on one side of the bent portion, and both ends of the second graphene layer extend to one side of the first sub-part and the second sub-part, respectively. The elongation of the second graphene layer is greater than or equal to 5%.

[0120] In one possible implementation, the second graphene layer includes a first graphene sub-section, a second graphene sub-section, and a third graphene sub-section arranged side by side and interconnected with each other. The first graphene sub-section, the second graphene sub-section, and the third graphene sub-section are respectively located on one side of the first sub-section, the bent portion, and the second sub-section. The thickness of the second graphene sub-section is greater than the thickness of the first graphene sub-section and the third graphene sub-section.

[0121] In one possible implementation, the electronic device further includes a mid-frame located on the side of the graphene component away from the screen, and the mid-frame having a groove in a region near the second graphene sub-part, the second graphene sub-part being at least partially housed in the groove.

[0122] In one possible implementation, the electronic device further includes a first middle frame, a second middle frame, and a door panel. The first middle frame is located on the side of the graphene component away from the first middle frame, and the second middle frame is located on the side of the graphene component away from the second middle frame. The portion of the graphene component located on the side of the bent portion has an opening, which is filled with adhesive. The adhesive connects the door panel and the bent portion to fix the door panel to the bent portion.

[0123] The descriptions and variations of the screen, graphene component, and mid-frame in the foregoing embodiments are applicable to the screen, graphene component, and mid-frame in the electronic device of this embodiment. The descriptions and variations of the connection and positional relationships between the graphene component and the screen and mid-frame in the foregoing embodiments are applicable to the connection and positional relationships between the graphene component and the screen and mid-frame in the electronic device of this embodiment. Further details will not be repeated here.

[0124] In this application, the graphene component extends uninterruptedly from one side of the first sub-part to one side of the second sub-part. It can not only dissipate heat from the first housing, the second housing, the first sub-part, and the second sub-part themselves, but also achieve heat transfer between the first housing and the second housing, and between the first sub-part and the second sub-part. This evenly conducts and distributes the heat from the high-heat areas in the display component and the electronic device to all corners of the entire body. In particular, the heat from the high-heat areas is conducted to the low-heat areas, achieving a highly efficient heat dissipation effect that balances the overall heat of the device. The elasticity and stretchability of the graphene component ensures that the graphene component maintains its structural integrity when switching between a flattened and closed state, preventing it from being pulled apart and causing the thermal conductivity to fail. Attached Figure Description

[0125] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0126] Figure 1 This is a schematic diagram of the structure of the electronic device provided in one embodiment of this application when it is in a flattened state;

[0127] Figure 2 This is a schematic diagram of the structure of the electronic device provided in one embodiment of this application when it is in an intermediate state;

[0128] Figure 3 This is a schematic diagram of the structure of an electronic device provided in one embodiment of this application when it is in a closed state;

[0129] Figure 4 This is a schematic diagram of the structure of an electronic device provided in one embodiment of this application;

[0130] Figure 5 This is a cross-sectional view of the electronic device provided in one embodiment of this application when it changes from a flattened state to a closed state;

[0131] Figure 6 This is a partial structural schematic diagram of the electronic device provided in the first embodiment of this application;

[0132] Figure 7 yes Figure 6 A magnified view of part M in the middle;

[0133] Figure 8 This is a top view of the electronic device provided in the first embodiment of this application;

[0134] Figure 9 This is a schematic diagram of the structure of the first elastic segment provided in one embodiment of this application;

[0135] Figure 10 This is a schematic diagram of the structure of the first elastic segment provided in one embodiment of this application;

[0136] Figure 11 This is a partial structural schematic diagram of the electronic device provided in the second embodiment of this application;

[0137] Figure 12 This is a top view of the electronic device provided in the second embodiment of this application;

[0138] Figure 13 This is a partial structural schematic diagram of the electronic device provided in the third embodiment of this application;

[0139] Figure 14 yes Figure 13 A magnified view of part N in the middle;

[0140] Figure 15 This is a partial structural schematic diagram of the electronic device provided in the third embodiment of this application;

[0141] Figure 16 This is a partial structural schematic diagram of the electronic device provided in the fourth embodiment of this application;

[0142] Figure 17 This is a partial structural schematic diagram of the electronic device provided in the fourth embodiment of this application;

[0143] Figure 18 This is a partial structural schematic diagram of the electronic device provided in the fifth embodiment of this application;

[0144] Figure 19 This is a partial structural schematic diagram of the electronic device provided in the fifth embodiment of this application;

[0145] Figure 20 This is a partial structural schematic diagram of the electronic device provided in the sixth embodiment of this application;

[0146] Figure 21 This is a partial structural schematic diagram of the electronic device provided in the sixth embodiment of this application;

[0147] Figure 22 This is a top view of the electronic device provided in the sixth embodiment of this application;

[0148] Figure 23 This is a partial structural schematic diagram of the electronic device provided in the sixth embodiment of this application;

[0149] Figure 24 This is a partial structural schematic diagram of the electronic device provided in the sixth embodiment of this application;

[0150] Figure 25 This is a partial structural schematic diagram of the electronic device provided in the sixth embodiment of this application;

[0151] Figure 26 This is a partial structural schematic diagram of the display component provided in the seventh embodiment of this application. Detailed Implementation

[0152] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0153] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after the connection. It should be understood that when component A is fixedly connected to component C through component B, changes in the relative positional relationship due to deformation of components A, B, and C themselves are permissible.

[0154] The directional terms mentioned in the embodiments of this application, such as "upper", "lower", "side", "top", "bottom", etc., are only for reference to the direction of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0155] The term "multiple" refers to at least two. The term "and / or" describes a relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0156] This application provides a display assembly having a flattened state and a closed state. The display assembly includes a screen and a graphene component. The screen includes a bent portion and a first sub-part and a second sub-part located on both sides of the bent portion. The first sub-part is located on one side of a first housing, and the second sub-part is located on one side of a second housing. The bent portion is located on one side of a folding assembly. In the flattened state, the first sub-part, the bent portion, and the second sub-part are coplanar. In the closed state, the first sub-part and the second sub-part are folded relative to each other. The graphene component is located between the housing device and the screen. At least a portion of the graphene component is located on one side of the bent portion, and both ends of the graphene component extend to one side of the first sub-part and the second sub-part, respectively. The graphene component has elastic stretching properties.

[0157] By simultaneously placing graphene components on one side of both the first and second sub-parts, heat can be transferred between the two sub-parts through the graphene components, and the components are less prone to breakage when bent. When the display component of this application is used in electronic devices, it can improve the overall heat dissipation of the electronic device, optimize the user experience, and also facilitate the improvement of the overall specifications of the electronic device.

[0158] Please refer to the following: Figure 1 , Figure 2 and Figure 3 , Figures 1 to 3 Graphene component 200 is not shown in the image. Figure 1 This is a schematic diagram of the structure of an electronic device 10 in a flattened state according to one embodiment of this application. Figure 2 yes Figure 1 The diagram shows the structure of the electronic device 10 in its intermediate state. Figure 3 yes Figure 1 The diagram shows the structure of the electronic device 10 when it is in a closed state.

[0159] In some embodiments, the electronic device 10 is a foldable device, having a flattened state and a closed state. The electronic device 10 can be a foldable electronic product such as a mobile phone, tablet computer, laptop computer, or wearable device. For example, the electronic device 10 includes a screen 100, a graphene component 200, and a housing device 300. The housing device 300 supports the screen 100, the screen 100 is mounted on the housing device 300, and the graphene component 200 is mounted between the screen 100 and the housing device 300 (in combination). Figure 4 The graphene component 200 and the screen 100 can be separately mounted on the housing device 300, and the graphene component 200 and the screen 100 can be assembled together to form a display component 11 (e.g., Figure 4 (As shown) It is integrally mounted on the housing device 300.

[0160] like Figure 1 As shown, the housing device 300 can be unfolded to a flattened state; as Figure 3 As shown, the housing device 300 can also be folded into a closed state; as Figure 2 As shown, the housing device 300 can also be unfolded or folded to an intermediate state, which can be any state between a flattened state and a closed state. The screen 100 is a bendable structure, and the screen 100 moves with the housing device 300. The housing device 300 can drive the screen 100 to flatten or fold, so that the electronic device 10 can be unfolded or folded to a flattened state, a closed state, or an intermediate state. In one embodiment, when the electronic device 10 is in the closed state, the screen 100 is located inside the housing device 300, and the electronic device 10 is an inward-folding screen device. In another embodiment, when the electronic device 10 is in the closed state, the screen 100 is located outside the housing device 300, and the electronic device 10 is an outward-folding screen device.

[0161] In this embodiment, when the electronic device 10 is in a flattened state, the screen 100 can display in full screen, giving the electronic device 10 a larger display area to improve the user's viewing and operating experience. When the electronic device 10 is in a closed state, its planar dimensions are smaller, making it easier for users to carry and store.

[0162] In some embodiments, the electronic device 10 may further include multiple components (not shown in the figures), which may be installed inside the housing device 300. These components may include, for example, a processor, internal memory, an external memory interface, a universal serial bus (USB) interface, a charging management module, a power management module, a battery, an antenna, a communication module, a camera, an audio module, a speaker, a receiver, a microphone, a headphone jack, a sensor module, buttons, a motor, an indicator, and a subscriber identification module (SIM) card interface, etc. The electronic device 10 may have more or fewer components than described above, may combine two or more components, or may have different component configurations. The various components may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and / or application-specific integrated circuits.

[0163] During the operation of the electronic device 10, different components inside the housing 300 generate heat at different rates. For example, the SOC (System on Chip) chip area and the camera section generate significant heat, while the battery section generates little heat. This difference in heat generation results in high-heat and low-heat areas within the electronic device 10 during operation. In one embodiment, the SOC chip area is located on one side of the first housing 310, and the battery is located on one side of the second housing 320. The portion of the electronic device 10 located in the first housing 310 is a high-heat area, and the portion of the electronic device 10 located in the second housing 320 is also a high-heat area.

[0164] It is understood that when a user holds the electronic device 10, the location of the earpiece module can be defined as the top edge of the electronic device 10, the location of the microphone module can be defined as the bottom edge of the electronic device 10, and the two sides of the electronic device 10 held by the user's left and right hands can be defined as the left and right sides of the electronic device 10. In some embodiments, the electronic device 10 can be folded in half horizontally. In other embodiments, the electronic device 10 can be folded in half from top to bottom.

[0165] In some embodiments, such as Figure 1As shown, the housing device 300 includes a first housing 310, a second housing 320, and a folding assembly 330. The folding assembly 330 can be connected between the first housing 310 and the second housing 320. The first housing 310 and the second housing 320 can be relatively unfolded to a flattened state or relatively folded to a closed state by the movement of the folding assembly 330, and can also be relatively flattened or relatively folded to an intermediate state. It should be understood that when the electronic device 10 is in the flattened state, the screen 100, the graphene component 200, the housing device 300, and each component of the housing device 300 are correspondingly in the open state; when the electronic device 10 is in the closed state, the screen 100, the graphene component 200, the housing device 300, and each component of the housing device 300 are correspondingly in the closed state; when the electronic device 10 is in the intermediate state, the screen 100, the housing device 300, and each component of the housing device 300 are correspondingly in the intermediate state.

[0166] Among them, such as Figure 1 As shown, when the electronic device 10 is in a flattened state, the angle between the first housing 310 and the second housing 320 can be approximately 180°. The first housing 310 and the second housing 320 are flattened. The first housing 310, the folding assembly 330 and the second housing 320 are arranged sequentially along the second direction Y. The screen 100 is in a flattened state. The first sub-part 110, the bending part 130 and the second sub-part 120 are arranged coplanarly along the second direction Y. The two ends of the electronic device 10 along the second direction Y are the first end and the second end, respectively. In the flattened state, the first end is set away from the second end. When the screen 100 is in the unfolded state, the first sub-part 110, the bent part 130, and the second sub-part 120 are coplanar along the second direction Y. This can be understood as the included angle between the first sub-part 110 and the second sub-part 120 also having a slight deviation from 180° while remaining coplanar, such as 165°, 177°, or 185°. In this case, the first sub-part 110, the bent part 130, and the second sub-part 120 are also considered flattened and coplanar. The included angle between the first sub-part 110 and the second sub-part 120 is defined as the angle between the upper side of the first sub-part 110 and the upper side of the second sub-part 120. The first housing 310 can be spliced ​​with the second housing 320. The splicing of the first housing 310 and the second housing 320 includes situations where they abut against each other, and situations where there is a small gap between them. In this embodiment, the splicing of the first housing 310 and the second housing 320 can stop the unfolding action of the housing device 300, preventing the housing device 300 from folding excessively during unfolding, thereby reducing the stress on the screen 100 and improving the reliability of the screen 100 and the electronic device 10. Figure 1 In the illustrated embodiment, the first direction X is the thickness direction of the electronic device 10, and the second direction Y is the length direction of the electronic device 10. In some other embodiments, the second direction Y is the width direction of the electronic device 10.

[0167] In some other embodiments, when the electronic device 10 is in the unfolded state, the angle between the first housing 310 and the second housing 320 may deviate slightly from 180°, for example, by 165°, 177°, or 185°. In this case, the first housing 310 and the second housing 320 are also considered to be flattened. The included angle between the first housing 310 and the second housing 320 is defined as the angle between the upper side of the first housing 310 and the upper side of the second housing 320.

[0168] like Figure 3 As shown, when the electronic device 10 is in a closed state, the first end is positioned close to the second end, and the angle between the first housing 310 and the second housing 320 can be approximately 0°. When the first housing 310 and the second housing 320 are folded into a closed state, the screen 100 presents a folded shape. Exemplarily, when the first housing 310 and the second housing 320 are in a closed state, they can contact each other for positioning. In some other embodiments, when the first housing 310 and the second housing 320 are in a closed state, they can also be close to each other, and there is a small gap between them; this application does not strictly limit this. When there is a small gap between the first housing 310 and the second housing 320, foreign objects (such as nails, paper clips, glass shards, etc.) outside the electronic device 10 will not enter between the first housing 310 and the second housing 320 through the gap, thus avoiding damage to the screen 100 by foreign objects and improving the reliability of the electronic device 10.

[0169] It is understood that the first housing 310 and the second housing 320 are housing components used to install and fix other components of the electronic device 10, and have diverse structures. The embodiments of this application only briefly illustrate some of the structures of the first housing 310 and the second housing 320, and the accompanying drawings are also simplified. The embodiments of this application do not strictly limit the specific structures of the first housing 310 and the second housing 320.

[0170] In some embodiments, please refer to the following: Figure 1 and Figure 4 The screen 100 includes a first sub-part 110, a bending part 130, and a second sub-part 120 arranged sequentially. The first sub-part 110 is mounted on a first housing 310, the second sub-part 120 is mounted on a second housing 320, and the bending part 130 is disposed corresponding to the folding assembly 330. During the relative folding or unfolding of the first housing 310 and the second housing 320, the bending part 130 deforms. During the relative folding or unfolding of the first housing 310 and the second housing 320, the first housing 310 drives the first sub-part 110 to move, and the second housing 320 drives the second sub-part 120 to move, thus folding or unfolding the first sub-part 110 and the second sub-part 120 relative to each other.

[0171] In some embodiments, the first sub-part 110 of the screen 100 may be fixedly connected to the first housing 310, for example, the first sub-part 110 may be bonded to the first housing 310 by an adhesive layer. The second sub-part 120 may be fixedly connected to the second housing 320, for example, the second sub-part 120 may be bonded to the second housing 320 by an adhesive layer.

[0172] In this embodiment, since the first sub-part 110 is fixedly connected to the first housing 310 and the second sub-part 120 is fixedly connected to the second housing 320, when the first housing 310 and the second housing 320 are folded or unfolded relative to each other, the relative folding and unfolding actions between the first sub-part 110 and the second sub-part 120 can be accurately controlled, making the deformation process and movement shape of the screen 100 controllable and highly reliable.

[0173] like Figure 1 As shown, when the first housing 310 and the second housing 320 are unfolded to a flattened state, the first sub-part 110, the bent part 130, and the second sub-part 120 of the screen 100 are relatively flattened, and the screen 100 is in a flattened state. Figure 2 As shown, when the first housing 310 and the second housing 320 are in an intermediate state, an angle is formed between the first sub-part 110 and the second sub-part 120 of the screen 100, the bending portion 130 is partially bent, and the screen 100 is in a bent state. Figure 3 As shown, when the first housing 310 and the second housing 320 are folded to a closed state, the screen 100 is located inside the housing device 300 and is in a folded state. In one embodiment, when the first housing 310 and the second housing 320 are folded to a closed state, the screen 100 is located outside the housing device 300 and is in a folded state.

[0174] The screen 100 may include a display module 140 and a support plate 150. The display module 140 is a flexible display screen, and the support plate 150 is located below the display module 140 to support the display module and increase its structural rigidity. Figure 4 As shown, the screen 100 includes a display surface 101 and a back surface 102. The display surface 101 refers to the surface on which the screen displays the operating interface or image, and the back surface 102 refers to the surface of the screen 100 that is opposite to the back surface 102. Specifically, the display surface 101 is the surface of the display module 140 that is away from the support plate 150, and the back surface 102 is the surface of the support plate 150 that is away from the display module 140.

[0175] In one embodiment, the stiffness of the portion of the support plate 150 located at the bending portion 130 is less than the stiffness of the portions located at the first sub-portion 110 and the second sub-portion 120. That is, the stiffness of the portion of the support plate 150 located at the bending portion 130 is smaller, while the stiffness of the portions located at the first sub-portion 110 and the second sub-portion 120 is larger. This allows the screen 100 to balance structural stiffness with high flatness, while also ensuring that the bending portion 130 of the screen 100 can be bent smoothly. In another embodiment, the support plate 150 is shaped like a bamboo book, and is composed of multiple strips connected sequentially by a flexible material. This allows the screen 100 to have both high structural stiffness and the ability to be bent smoothly.

[0176] It is understood that the first housing 310 and the second housing 320 can be continuous, complete surfaces, or surfaces that include multiple recessed areas or hollow areas. This application embodiment does not strictly limit this.

[0177] The display module 140 can integrate display and touch sensing functions. The display function of the display module 140 is used to display images, videos, etc., while the touch sensing function is used to sense user touch actions to achieve human-computer interaction. The display module 140 can employ liquid crystal display (LCD), organic light-emitting diode (OLED) display, active-matrix organic light-emitting diode (AMOLED) display, flexible light-emitting diode (FLED) display, MiniLED display, MicroLED display, Micro-OLED display, quantum dot light-emitting diode (QLED) display, etc.

[0178] Understandably, in order to better demonstrate the structure of electronic device 10, Figures 1 to 3 The folding component 330 is exposed. In the actual product form, the electronic device 10 can be equipped with a cover, after which the folding component 330 will no longer be exposed. The folding component 330 can be configured as needed. Figures 1 to 3 The position of the folding component 300 is only shown in the illustration. In this application, the structure of the folding component 330 is not limited, as long as it can enable the electronic device 10 to open and close.

[0179] The graphene component 200 possesses excellent thermal conductivity, enabling it to rapidly transfer heat from high-temperature areas to low-temperature areas in the environment. The graphene component 200 is located between the housing device 300 and the screen 100 (e.g., Figure 4 As shown, in one embodiment, the graphene component 200 is located on the side of the support plate 150 away from the display module 140. In another embodiment, the graphene component 200 is disposed in close contact with the support plate 150 in the screen 100. In one embodiment, when the electronic device 10 is in a flattened state, the display module 140, the support plate 150, and the graphene component 200 are stacked sequentially along the first direction X.

[0180] At least a portion of the graphene component 200 is located on the side of the bent portion 130 near the folded assembly 330, and the two ends of the graphene component 200 extend to the side of the first sub-portion 110 and the second sub-portion 120 near the first housing 310 and the second housing 320, respectively, so that heat can be transferred along the second direction Y.

[0181] The graphene component 200 can be unfolded into a flat state, folded into a closed state, and can also be unfolded or folded into an intermediate state, which can be any state between the flat and closed states. Due to its elastic and stretchable properties, the graphene component 200 is a bendable structure and can move with the housing device 300 and the screen 100. When the electronic device 10 is in the flat state, the graphene component 200 is also in the flat state; when the electronic device 10 is in the closed state, the graphene component 200 is also in the closed state. The graphene component 200 can flexibly extend or shorten without breaking when switching directly between the flat and closed states.

[0182] In one embodiment, the orthographic projection of the graphene component 200 onto the screen 100 covers the entire or most of the screen 100. In another embodiment, the orthographic projection of the graphene component 200 onto the screen 100 covers a portion of the screen 100. It is understood that the larger the area of ​​the orthographic projection of the graphene component 200 onto the screen 100, the better the heat dissipation effect of the graphene component 200 on the electronic device 10.

[0183] The graphene component 200 not only dissipates heat from the first housing 310, the second housing 320, the first sub-part 110, and the second sub-part 120 themselves, but also facilitates heat transfer between the first housing 310 and the second housing 320, and between the first sub-part 110 and the second sub-part 120. This evenly conducts and distributes heat from high-heat areas in the electronic device 10 to all corners of the entire device. In particular, heat from high-heat areas is conducted to low-heat areas, achieving an efficient heat dissipation effect that balances the overall heat of the device. Furthermore, the elasticity and stretchability of the graphene component 200 ensures that the graphene component 200 maintains its structural integrity when switching between a flattened and closed state, preventing it from being torn and causing the thermal conductivity function to fail.

[0184] When the graphene component 200 changes from a flattened state to a closed state (e.g.) Figure 5 As shown), the length of graphene component 200 extends from L1 to L2 (L2 = L3 + L4 + L5), with an elongation of ΔL (ΔL = L2 - L1). The elongation e of graphene component 200 as it transitions from a flattened state to a closed state is:

[0185]

[0186] Wherein, the length L1 of the graphene component 200 refers to the length of the graphene component 200 in the second direction Y when the graphene component 200 is in a flattened state; the length L2 of the graphene component 200 refers to the length of the graphene component 200 after stretching when the graphene component 200 is in a closed state, that is, the distance between the two ends of the graphene component 200 away from the bending part 130 along the plate surface of the graphene component 200, i.e. Figure 5 The sum of L3, L4 and L5 in the equation.

[0187] The length L3 of the graphene component 200 refers to the length of the arc-shaped portion of the graphene component 200 located on the side corresponding to the bent portion 130. For details, please refer to [link / reference needed]. Figure 5When the graphene component 200 is in the closed state, its cross-section includes a first portion 201, a second portion 202, and a third portion 203 connecting the first portion 201 and the second portion 202. The first portion 201 and the second portion 202 are parallel, and the third portion 203 is a bent and deformed portion. The connection point between the third portion 203 and the first portion 201 is the first connection point A1, and the tangent at the first connection point A1 is the first tangent B1, whose extension direction is parallel to the first portion 201. The connection point between the second portion 202 and the first portion 201 is A2, and the tangent at the second connection point A2 is the second tangent B2, whose extension direction is parallel to the second portion 202. Furthermore, the tangent directions from the first connection point A1 to the second connection point A2 change continuously. The length L3 is the arc length between the first connection point A1 and the second connection point A2.

[0188] In one possible implementation, the elongation e of the graphene component 200 is greater than or equal to 5%, ensuring that the graphene component 200 has sufficient elongation e to allow for adequate stretching during the transition from a flattened state to a closed state, preventing breakage during the elongation process. In this embodiment, the graphene component 200 can be applied to an electronic device 10 with an elongation e less than or equal to 5%. That is, the elongation e of the electronic device 10 in the closed state is less than or equal to 5%, while the elongation e of the graphene component 200 is greater than or equal to 5%, ensuring that the graphene component 200 will not break when the electronic device 10 is closed.

[0189] In one embodiment, the elongation e of the graphene component 200 is greater than or equal to 5% and less than or equal to 100%.

[0190] In one embodiment, the elongation e of the graphene component 200 is greater than or equal to 10% and less than or equal to 20%.

[0191] In one embodiment, the elongation e of the graphene component 200 is greater than or equal to 10% and less than or equal to 30%.

[0192] In one embodiment, the elongation e of the graphene component 200 is greater than or equal to 10% and less than or equal to 50%.

[0193] In one embodiment, the elongation e of the graphene component 200 is greater than or equal to 10% and less than or equal to 80%.

[0194] In one embodiment, the elongation ΔL of the graphene component 200 is greater than or equal to 1 mm and less than or equal to 4 mm.

[0195] In one embodiment, the graphene component 200 as a whole has elastic stretching properties, and the elongation e of the graphene component 200 as a whole is greater than or equal to 5%.

[0196] In one embodiment, the elastic stretching properties of different parts of the graphene component 200 are different. While keeping the elongation e of the graphene component 200 as a whole greater than or equal to 5%, the elongation e of a part of the graphene component 200 can be less than 5%, and the elongation e of another part of the graphene component 200 can be greater than or equal to 5%.

[0197] In some embodiments, the elongation e of the graphene component 200 can be set according to the elongation e when the electronic device 10 is bent.

[0198] Please see Figure 6 , Figure 7 and Figure 8 , Figure 6 This is a partial structural diagram of the electronic device 10 in the first embodiment. Figure 7 for Figure 6 A magnified view of part M in the middle. Figure 8 for Figure 6 A top view. In this embodiment, the graphene component 200 includes a first elastic segment 211 and a first graphene segment 221 (e.g., ...) connected together. Figure 6 As shown, the first elastic segment 211 is located on one side of the first sub-part 110 and can be stretched relative to the first sub-part 110. The first graphene segment 221 is located on one side of the bent portion 130, and both ends of the first graphene segment 221 extend to one side of the first sub-part 110 and the second sub-part 120, respectively. At least a portion of the first elastic segment 211 is fixed relative to the first sub-part 110, and the elongation e of the first elastic segment 211 is greater than the elongation e of the first graphene segment 221. The fact that a portion of the first elastic segment 211 is fixed relative to the first sub-part 110 means that the relative positional relationship between the portion of the first elastic segment 211 and the first sub-part 110 remains unchanged. When the first sub-part 110 moves, the portion of the first elastic segment 211 can move accordingly. In one embodiment, when the graphene component 200 is in a flattened state, the first elastic segment 211 is located on the side of the first graphene segment 221 along the second direction Y close to the first sub-part 110, and a portion of the first elastic segment 211 is fixedly connected to the first graphene segment 221.

[0199] In one possible implementation, the elongation *e* of the first graphene segment 221 is greater than or equal to 0.3% and less than 1%; the elongation *e* of the first elastic segment 211 is greater than or equal to 10%. The elongation *e* of the first graphene segment 221 is relatively small, and the first graphene segment 221 alone is insufficient to meet the elongation *e* requirement of the graphene component 200 when switching between a flattened and closed state. However, by setting the first elastic segment 211 with a larger elongation *e*, the graphene component 200 as a whole can meet the elongation *e* requirement when switching between a flattened and closed state. When the graphene component 200 changes from a flattened state to a closed state, the overall elongation of the graphene component 200 is mainly achieved through the elongation of the first elastic segment 211; when the graphene component 200 changes from a closed state to a flattened state, the overall shortening of the graphene component 200 is mainly achieved through the shortening of the first elastic segment 211.

[0200] The calculation method for the elongation e of the first graphene segment 221 is the same as that for the graphene component 200. The difference is that the length L1 of the first graphene segment 221 refers to the length of the first graphene segment 221 in the second direction Y when the graphene component 200 is in a flattened state; the length L2 of the first graphene segment 221 refers to the distance between the two ends of the first graphene segment 221 away from the bending part 130 along the plate surface of the graphene component 200 when the graphene component 200 is in a closed state; L3 is the same as that of the graphene component 200.

[0201] The calculation method for the elongation e of the first elastic segment 211 is the same as that for the graphene component 200. The difference is that the length L1 of the first elastic segment 211 refers to the length of the first elastic segment 211 in the second direction Y when the graphene component 200 is in a flattened state; the length L2 of the first elastic segment 211 refers to the length of the first elastic segment 211 after stretching when the graphene component 200 is in a closed state; and L3 is the same as that of the graphene component 200.

[0202] In one possible implementation, the first graphene segment 221 includes a first graphene layer 2211 and two first film layers 2212 located on opposite surfaces of the first graphene layer 2211 along a first direction X. The first direction X intersects with the surface of the first sub-part 110 facing the first graphene segment 221. The first graphene layer 2211 includes multiple stacked monolayer graphene. The edges of the two first film layers 2212 are sealed to isolate the first graphene layer 2211 from the outside. A portion of the first elastic segment 211 is connected to the first film layer 2212. The first graphene layer 2211 is located on one side of the bent portion 130, and both ends of the first graphene layer 2211 extend to one side of the first sub-part 110 and the second sub-part 120, respectively. The elongation e of the first graphene layer 2211 is greater than or equal to 0.3% and less than 1%. The elongation e of the first elastic segment 211 is greater than or equal to 10%. In this embodiment, the elongation e of the first graphene layer 2211 is relatively small, and the value of elongation e is greater than or equal to 0.3% and less than 1%. The first graphene segment 221 alone is insufficient to meet the elongation e requirement of the graphene component 200 when switching between the flattened state and the closed state. However, by setting the first elastic segment 211 with a larger elongation e, the graphene component 200 as a whole can meet the elongation e requirement when switching between the flattened state and the closed state.

[0203] The first film layer 2212 provides protective support for the first graphene layer 2211 and has elastic stretching properties, allowing it to stretch or shrink as the first graphene layer 2211 stretches or shrinks. In one embodiment, the material of the first film layer 2212 includes, but is not limited to, natural rubber, polyurethane (PU), thermoplastic polyurethane rubber (TPU), polybutadiene (cis-butadiene rubber), polyisoprene (isoprene rubber), chloroprene rubber, butyl rubber, aramid paper, etc. In this case, the first film layer 2212 itself has a strong elastic elongation rate, maintaining a strong elastic elongation rate even in a thin state, and possesses recovery and rebound capabilities. In another embodiment, the first film layer 2212 has an elastic structure, which enhances the tensile elongation capacity of the first film layer 2212. The material of the elastic structure includes, but is not limited to, titanium alloy, aluminum alloy, etc.

[0204] In one embodiment, when the graphene component 200 is in a flattened state, the lengths of the two first film layers 2212 along the second direction Y are greater than the lengths of the first graphene layer 2211 along the second direction Y, and the two first film layers 2212 are bonded together to seal both ends of the first graphene layer 2211 along the second direction Y. In one embodiment, a portion of the first elastic segment 211 is connected to the first film layer 2212, and the first elastic segment 211 at least partially overlaps with the two first film layers 2212 along the first direction X. In one embodiment, the first elastic segment 211 does not overlap with the first graphene layer 2211 along the first direction X.

[0205] In one embodiment, the first film layer 2212 has good thermal conductivity, which allows it to quickly transfer heat from the environment to the first graphene layer 2211, reducing the impact of the first film layer 2212 on the first graphene layer 2211. In another embodiment, the first film layer 2212 has insulating properties. Since the first graphene layer 2211 is conductive, if it directly contacts external components or circuits, it can easily cause short circuits. By wrapping the first film layer 2212 around the first graphene layer 2211, the first graphene layer 2211 is insulated from the external environment, reducing the risk of short circuits caused by the first graphene layer 2211.

[0206] In one possible implementation, a portion of the first elastic segment 211 is fixedly connected to the back surface 102 of the screen 100 (e.g., Figure 7 As shown), so that a portion of the first elastic segment 211 is fixed relative to the first sub-part 110.

[0207] For example, a portion of the first elastic segment 211 is bonded to the support plate 150, thereby fixing the portion of the first elastic segment 211 to the back surface 102 of the screen 100.

[0208] In one embodiment, a portion of the first elastic segment 211 is connected to the first membrane layer 2212 on the side near the first membrane layer 2212, and a portion of the first elastic segment 211 is connected to the first sub-part 110 on the side near the first sub-part 110.

[0209] In one embodiment, the side of the first graphene segment 221 away from the first elastic segment 211 is fixed relative to the second sub-part 120.

[0210] In one embodiment, a portion of the first elastic segment 211 is bonded to the support plate 150, the side of the first graphene segment 221 away from the first elastic segment 211 is bonded to the support plate 150, and both sides of the graphene component 200 are fixedly connected to the support plate 150, so that the graphene component 200 can move with the housing device 300 and the screen 100.

[0211] Please continue reading. Figure 7 In one possible implementation, the first elastic segment 211 includes a first segment 2111, a second segment 2112, and a third segment 2113 connected in sequence. The first sub-part 110 includes a display surface 101 and a back surface 102 disposed opposite to each other. The first segment 2111 is connected to the back surface 102 of the first sub-part 110 and is fixed relative to the first sub-part 110. The second segment 2112 is stretchable relative to the first sub-part 110. The third segment 2113 is connected to the first graphene segment 221. The elongation e of the second segment 2112 is greater than the elongation e of the first segment 2111 and greater than the elongation e of the third segment 2113. The back surface 102 of the first sub-part 110 refers to the surface of the first sub-part 110 close to the graphene component 200 along the first direction X. In one implementation, the first segment 2111 is connected to the side of the support plate 150 away from the display module 140. The second segment 2112 is neither connected to the first sub-part 110 nor to the first graphene segment 221. When the graphene component 200 switches between a flattened state and a closed state, the second segment 2112 can freely extend or shorten.

[0212] In one embodiment, the elongation 'e' values ​​of the first segment 2111, the second segment 2112, and the third segment 2113 can be the same or different. In one embodiment, the elongation 'e' value of the second segment 2112 is greater than or equal to 10%. When the graphene component 200 switches between a flattened state and a closed state, the overall elongation or shortening of the graphene component 200 is mainly achieved through the elongation or shortening of the second segment 2112. The calculation method for the elongation 'e' of the second segment 2112 is the same as the calculation method for the elongation 'e' of the graphene component 200. The difference is that the length L1 of the second segment 2112 refers to the length of the second segment 2112 in the second direction Y when the graphene component 200 is in the flattened state; the length L2 of the second segment 2112 refers to the length of the second segment 2112 after stretching when the graphene component 200 is in the closed state; and L3 is the same as that of the graphene component 200. The elongation e of the first segment 2111 and the third segment 2113 are calculated in the same way as that of the second segment 2112e, and will not be repeated here.

[0213] In one embodiment, the first elastic segment 211 is made of an elastic material, such as thermoplastic polyurethane elastomer rubber, and the elongation and shortening of the first elastic segment 211 are achieved through the elasticity and stretching ability of the elastic material itself. In one embodiment, the first elastic segment 211 has an elastic structure (e.g., Figure 9 and Figure 10 As shown, the elastic structure can elongate or shorten along the second direction Y, and the elongation and shortening of the first elastic segment 211 are achieved through the extensibility of the structure. In one embodiment, the second segment 2112 has an elastic structure, which is formed by etching a metal sheet. It is understood that the elastic structure is not limited to... Figure 9 and Figure 10 The structure in question only needs to be elastic enough to allow for elongation or shortening along the second direction Y.

[0214] In one embodiment, the third segment 2113 is connected to the first film layer 2212 on the side away from the screen 100, the first segment 2111 is connected to the screen 100, and in the first direction X, the second segment 2112 forms a gap with the screen 100 (e.g., Figure 7 As shown), this arrangement of the first elastic segment 211 allows the second segment 2112 to be freely extended or shortened, thereby reducing the thickness of the electronic device 10 in the first direction X.

[0215] In one possible implementation, the electronic device 10 further includes a first adhesive layer 410 located between the first segment 2111 and the back surface 102 of the first sub-part 110 to connect the first segment 2111 and the first sub-part 110, wherein the surface of the first graphene segment 221 away from the first sub-part 110 is bonded to the third segment 2113.

[0216] like Figure 6 and Figure 7 As shown, firstly, the end of the first graphene segment 221 near the first elastic segment 211 along the second direction Y is an adhesive structure of two first film layers 2212. The thickness of the end of the first graphene segment 221 near the first elastic segment 211 along the second direction Y along the first direction X is smaller than the thickness of other parts of the first graphene segment 221. The third segment 2113 is connected to the first film layer 2212, and the third segment 2113 and the two first film layers 2212 overlap at least partially along the first direction X. The third segment 2113 and the first graphene layer 2211 do not overlap along the first direction X. This makes the thickness of the graphene component 200 at the connection between the third segment 2113 and the first film layer 2212 basically the same as the thickness of other parts of the first graphene segment 221. This makes the graphene component 200 more uniform overall, which is more conducive to the close bonding of the graphene component 200 with the screen 100 and other components, and facilitates heat dissipation.

[0217] Secondly, the third segment 2113 is connected to the side of the first film layer 2212 away from the screen 100. In the first direction X, the first segment 2111 and the second segment 2112 are spaced apart from the first sub-part 110. The first adhesive layer 410 is disposed in the gap between the first segment 2111 and the first sub-part 110. No additional space is needed to accommodate the first adhesive layer 410. After the first segment 2111 and the first sub-part 110 are connected through the first adhesive layer 410, the graphene component 200 becomes more uniform and the surface is flatter. On the one hand, this is more conducive to the close fit between the graphene component 200 and the screen 100 and other components, which facilitates heat dissipation. On the other hand, it can save space, reduce the thickness of the electronic device 10, and make the electronic device 10 suitable for miniaturized scenarios.

[0218] Please see Figure 11 and Figure 12 , Figure 11 This is a partial structural schematic diagram of the electronic device 10 provided in the second embodiment of this application. Figure 12 Figure 11 The second embodiment of this application provides an electronic device 10, which differs from the first embodiment in that the graphene component 200 further includes a second elastic segment 212. The second elastic segment 212 is located on one side of the second sub-part 120 and can be stretched relative to the second sub-part 120. The second elastic segment 212 is connected to the end of the first graphene segment 221 away from the first elastic segment 211, and at least a portion of the second elastic segment 212 is fixed relative to the second sub-part 120. The elongation e of the second elastic segment 212 is greater than the elongation e of the first graphene segment 221. The partial fixation of the second elastic segment 212 relative to the second sub-part 120 means that the relative positional relationship between the partial second elastic segment 212 and the second sub-part 120 remains unchanged. When the second sub-part 120 moves, the partial second elastic segment 212 can move accordingly.

[0219] In one embodiment, when the graphene component 200 is in a flattened state, the second elastic segment 212 is located on the side of the first graphene segment 221 along the second direction Y near the second sub-part 120, and a portion of the second elastic segment 212 is fixedly connected to the first graphene segment 221. In another embodiment, when the graphene component 200 is in a flattened state, the first elastic segment 211 and the second elastic segment 212 are located on opposite sides of the graphene component 200 along the second direction Y.

[0220] In one embodiment, the positions of the second elastic segment 212 and the first elastic segment 211 can be interchanged, with the second elastic segment 212 located on one side of the first sub-part 110 and the first elastic segment 211 located on one side of the second sub-part 120.

[0221] In one embodiment, the elongation rates of the second elastic segment 212 and the first elastic segment 211 can be the same or different, to adapt to the needs of different products.

[0222] In one embodiment, the elongation e of the second elastic segment 212 is greater than or equal to 10% to ensure that the graphene component 200 meets the stretching requirements. The calculation method for the elongation e of the second elastic segment 212 is the same as that for the graphene component 200. The difference is that the length L1 of the second elastic segment 212 refers to its length in the second direction Y when the graphene component 200 is in a flattened state; the length L2 of the second elastic segment 212 refers to its length after stretching when the graphene component 200 is in a closed state; and L3 is the same as that of the graphene component 200.

[0223] In one embodiment, the total elongation e of the second elastic segment 212 and the first elastic segment 211 is greater than or equal to 10%. When the graphene component 200 changes from a flattened state to a closed state, the overall elongation of the graphene component 200 is mainly achieved by the elongation of the second elastic segment 212 and the first elastic segment 211. When the graphene component 200 changes from a closed state to a flattened state, the overall shortening of the graphene component 200 is mainly achieved by the shortening of the second elastic segment 212 and the first elastic segment 211.

[0224] In one embodiment, a portion of the second elastic segment 212 is fixedly connected to the back surface 102 of the screen 100 so that the portion of the second elastic segment 212 is fixed relative to the second sub-part 120.

[0225] In one embodiment, a portion of the second elastic segment 212 is connected to the first film layer 2212 on the side near the first film layer 2212, and a portion of the second elastic segment 212 is connected to the second sub-part 120 on the side near the second sub-part 120.

[0226] In one embodiment, a portion of the second elastic segment 212 is bonded to the support plate 150 and fixedly connected to the back surface 102 of the screen 100. Figure 9 Support plate 150 is not shown in the image; please refer to [reference needed]. Figure 4 understand.

[0227] In one embodiment, a portion of the first elastic segment 211 is bonded to the support plate 150, and a portion of the second elastic segment 212 is bonded to the support plate 150 on the side away from the first elastic segment 211. Both sides of the graphene component 200 are fixedly connected to the support plate 150, so that the graphene component 200 can move with the housing device 300 and the screen 100.

[0228] In one embodiment, the second elastic segment 212 includes a fourth segment 2121, a fifth segment 2122, and a sixth segment 2123 connected in sequence. The fourth segment 2121 is connected to the back surface 102 of the second sub-part 120 and is fixed relative to the second sub-part 120. The fifth segment 2122 is stretchable relative to the second sub-part 120. The sixth segment 2123 is connected to the first graphene segment 221. The back surface 102 of the second sub-part 120 refers to the surface of the second sub-part 120 along the first direction X near the graphene component 200. In one embodiment, the fourth segment 2121 is connected to the side of the support plate 150 away from the display module 140. The fifth segment 2122 is neither connected to the second sub-part 120 nor to the first graphene segment 221. When the graphene component 200 switches between a flattened state and a closed state, the fifth segment 2122 can freely extend or shorten.

[0229] In one embodiment, the elongation rate e of the fourth segment 2121, the fifth segment 2122, and the sixth segment 2123 can be the same or different. In one embodiment, the elongation rate e of the fifth segment 2122 is greater than or equal to 10%. When the graphene component 200 switches between a flattened state and a closed state, the overall elongation or shortening of the graphene component 200 is mainly achieved by the elongation or shortening of the fifth segment 2122.

[0230] In one embodiment, the sixth segment 2123 is connected to the first film layer 2212 on the side away from the screen 100, the fourth segment 2121 is connected to the screen 100, and in the first direction X, the fifth segment 2122 forms a gap with the screen 100 so that the fifth segment 2122 can freely extend or shorten. This arrangement of the second elastic segments 212 can reduce the thickness of the electronic device 10 in the first direction X. In one embodiment, the electronic device 10 also includes a third adhesive layer 430 (such as...). Figure 11 As shown), the third adhesive layer 430 is located between the fourth segment 2121 and the back surface 102 of the second sub-part 120 to connect the fourth segment 2121 and the second sub-part 120, and the surface of the first graphene segment 221 away from the second sub-part 120 is bonded to the sixth segment 2123.

[0231] like Figure 11 As shown, firstly, the end of the first graphene segment 221 near the second elastic segment 212 along the second direction Y is an adhesive structure of two first film layers 2212. The thickness of the end of the first graphene segment 221 near the second elastic segment 212 along the second direction Y along the first direction X is smaller than the thickness of other parts of the first graphene segment 221. The sixth segment 2123 is connected to the first film layer 2212, and the sixth segment 2123 and the two first film layers 2212 overlap at least partially along the first direction X. The sixth segment 2123 and the first graphene layer 2211 do not overlap along the first direction X, so that the thickness at the connection between the sixth segment 2123 and the first film layer 2212 is basically the same as the thickness of other parts of the first graphene segment 221. This can make the graphene component 200 uniform overall, which is more conducive to the tight bonding of the graphene component 200 with the screen 100 and other components, and facilitates heat dissipation.

[0232] Secondly, the sixth segment 2123 is connected to the side of the first film layer 2212 away from the screen 100. In the first direction X, the fourth segment 2121 and the fifth segment 2122 are spaced apart from the second sub-part 120. The third adhesive layer 430 is disposed in the gap between the fourth segment 2121 and the second sub-part 120. No additional space is needed to accommodate the third adhesive layer 430. After the fourth segment 2121 and the second sub-part 120 are connected through the third adhesive layer 430, the graphene component 200 becomes more uniform and the surface is flatter. On the one hand, this is more conducive to the close fit between the graphene component 200 and the screen 100 and other components, which facilitates heat dissipation. On the other hand, it can save space, reduce the thickness of the electronic device 10, and make the electronic device 10 suitable for miniaturized scenarios.

[0233] Please see Figure 13 and Figure 14 , Figure 13 This is a partial structural diagram of the electronic device 10 in the third embodiment. Figure 14 for Figure 13 A magnified view of part N in the middle.

[0234] The third embodiment of this application provides an electronic device 10, which differs from the first embodiment in that the electronic device 10 further includes a mid-frame 500 (e.g., Figure 13 As shown, the middle frame 500 is located on the side of the graphene component 200 away from the screen 100. The middle frame 500 is located between the graphene component 200 and the housing device 300. The middle frame 500 can be unfolded to a flattened state, folded to a closed state, and can also be unfolded or folded to an intermediate state, which can be any state between the flattened and closed states. The middle frame 500 can move with the housing device 300 and the screen 100. When the electronic device 10 is in the flattened state, the middle frame 500 is also in the flattened state; when the electronic device 10 is in the closed state, the graphene component 200 is also in the closed state.

[0235] The middle frame 500 can be used to fix the screen 100 and protect the screen 100. The middle frame 500 can also be used for anti-slip, enhancing the signal and structural strength of the electronic device 10.

[0236] Please continue reading. Figure 14 In one possible implementation, the first elastic segment 211 includes a first segment 2111, a second segment 2112, and a third segment 2113 connected in sequence. The first segment 2111 is connected to the middle frame 500 and fixed relative to the first sub-part 110. The second segment 2112 is stretchable relative to the middle frame 500. The third segment 2113 is connected to the first graphene segment 221.

[0237] The side of the first segment 2111 away from the first sub-part 110 is connected to the middle frame 500, the side of the first segment 2111 close to the first sub-part 110 can contact or abut against the first sub-part 110, and the side of the first segment 2111 close to the first sub-part 110 can also be connected to the first sub-part 110.

[0238] In one embodiment, the end of the first graphene segment 221 that is away from the first elastic segment 211 along the second direction Y is connected to the middle frame 500.

[0239] In one embodiment, the first segment 2111 is connected to the middle frame 500, and the end of the first graphene segment 221 away from the first elastic segment 211 along the second direction Y is connected to the first sub-part 110.

[0240] In one embodiment, the first segment 2111 is connected to the first sub-part 110, and the end of the first graphene segment 221 away from the first elastic segment 211 along the second direction Y is connected to the middle frame 500.

[0241] In one possible implementation, the electronic device 10 further includes a second adhesive layer 420 (such as...). Figure 14 As shown), the second adhesive layer 420 is located between the first segment 2111 and the middle frame 500 to connect the first segment 2111 and the middle frame 500, and the surface of the first graphene segment 221 away from the middle frame 500 is bonded to the third segment 2113.

[0242] like Figure 13 and Figure 14 As shown, firstly, the third segment 2113 is connected to the side of the first film layer 2212 away from the middle frame 500, and the third segment 2113 and the two first film layers 2212 overlap at least partially along the first direction X. The third segment 2113 and the first graphene layer 2211 do not overlap along the first direction X, so that the thickness at the connection between the third segment 2113 and the first film layer 2212 is basically the same as the thickness of other parts of the first graphene segment 221. This can make the graphene component 200 more uniform overall, which is more conducive to the close fit between the graphene component 200 and the screen 100 and other components, and facilitates heat dissipation.

[0243] Secondly, the third segment 2113 is connected to the side of the first film layer 2212 near the screen 100. In the first direction X, the first segment 2111 and the second segment 2112 are spaced apart from the middle frame 500. The second adhesive layer 420 is disposed in the gap between the first segment 2111 and the middle frame 500. No additional space is needed to accommodate the second adhesive layer 420. After the first segment 2111 and the middle frame 500 are connected through the second adhesive layer 420, the graphene component 200 becomes more uniform and the surface is flatter. On the one hand, this is more conducive to the close fit between the graphene component 200 and the screen 100, the middle frame 500 and other components, which facilitates heat dissipation. On the other hand, it can save space, reduce the thickness of the electronic device 10, and make the electronic device 10 suitable for miniaturized scenarios.

[0244] In one possible implementation, the graphene component 200 further includes a second elastic segment 212 (such as...). Figure 15 As shown, the second elastic segment 212 is located at the end of the first graphene segment 221 away from the first elastic segment 211 and is connected to the first graphene segment 221. Part of the second elastic segment 212 is fixedly connected to the middle frame 500. In one embodiment, the second elastic segment 212 is fixedly connected to the middle frame 500, and the first elastic segment 211 is fixedly connected to the screen 100.

[0245] In one embodiment, the second elastic segment 212 includes a fourth segment 2121, a fifth segment 2122, and a sixth segment 2123 connected in sequence. The fourth segment 2121 is connected to the side of the middle frame 500 near the screen 100. The fifth segment 2122 is stretchable relative to the middle frame 500. The sixth segment 2123 is connected to the first graphene segment 221. In another embodiment, the sixth segment 2123 is connected to the first film layer 2212 near the screen 100. The fourth segment 2121 is connected to the middle frame 500. In the first direction X, the fifth segment 2122 forms a gap with the screen 100, allowing the fifth segment 2122 to freely extend or shorten. This arrangement of the second elastic segment 212 can reduce the thickness of the electronic device 10 in the first direction X.

[0246] In one embodiment, the electronic device 10 further includes a fourth adhesive layer 440 (such as...). Figure 15As shown, the fourth adhesive layer 440 is located between the fourth segment 2121 and the middle frame 500 to connect the fourth segment 2121 and the middle frame 500. The surface of the first graphene segment 221 away from the middle frame 500 is bonded to the sixth segment 2123. First, the sixth segment 2123 is connected to the side of the first film layer 2212 away from the middle frame 500, and the sixth segment 2123 and the two first film layers 2212 overlap at least partially along the first direction X. The sixth segment 2123 and the first graphene layer 2211 do not overlap along the first direction X, so that the thickness at the connection between the sixth segment 2123 and the first film layer 2212 is basically the same as the thickness of other parts of the first graphene segment 221. This makes the graphene component 200 more uniform overall, which is more conducive to the close bonding of the graphene component 200 with the screen 100, the middle frame 500 and other components, and facilitates heat dissipation.

[0247] Secondly, the sixth segment 2123 is connected to the side of the first film layer 2212 away from the middle frame 500. In the first direction X, the fourth segment 2121 and the fifth segment 2122 are spaced apart from the middle frame 500. The fourth adhesive layer 440 is disposed in the gap between the fourth segment 2121 and the second sub-part 120. No additional space is needed to accommodate the fourth adhesive layer 440. After the fourth segment 2121 is connected to the middle frame 500 through the fourth adhesive layer 440, the graphene component 200 becomes more uniform and the surface is flatter. On the one hand, this is more conducive to the close fit between the graphene component 200 and the screen 100, the middle frame 500 and other components, which facilitates heat dissipation. On the other hand, it can save space, reduce the thickness of the electronic device 10, and make the electronic device 10 suitable for miniaturized scenarios.

[0248] Please see Figure 16 and Figure 17 , Figure 16 and Figure 17 These are partial structural schematic diagrams of the electronic device 10 provided in the fourth embodiment of this application. The fourth embodiment of this application provides an electronic device 10, which differs from the first embodiment in that the graphene component 200 further includes a second graphene segment 222. The second graphene segment 222 is located on one side of the first sub-part 110. The second graphene segment 222 and the first graphene segment 221 are at least partially stacked along a first direction X, and the first direction X intersects with the surface of the second graphene segment 222 facing the first sub-part 110. The second graphene segment 222 and the first graphene segment 221 are stacked, the first graphene segment 221 can slide relative to the second graphene segment 222, and the second graphene segment 222 can be fixed relative to the first sub-part 110. The arrangement of the second graphene segment 222 does not affect the free elongation or shortening of the first graphene segment 221, the first elastic segment 211, or the second elastic segment 212.

[0249] In this embodiment, the first direction X intersects perpendicularly with the surface of the second graphene segment 222 facing the first sub-part 110. In one embodiment, a high-heat-generating component is located at the position corresponding to the first sub-part 110, that is, the position corresponding to the first sub-part 110 is a high-heat-generating area. Adding the second graphene segment 222 to the high-heat-generating area can improve the heat dissipation capacity of the graphene component 200.

[0250] In one embodiment, the elongation e of the second graphene segment 222 is greater than or equal to 0.3% and less than 1%. The calculation method for the elongation e of the second graphene segment 222 is the same as that for the graphene component 200. The difference is that the length L1 of the second graphene segment 222 refers to the length of the second graphene segment 222 in the second direction Y when the graphene component 200 is in a flattened state; the length L2 of the second graphene segment 222 refers to the length of the second graphene segment 222 after stretching when the graphene component 200 is in a closed state; and L3 is the same as that of the graphene component 200.

[0251] In one embodiment, the elongation e of the second graphene segment 222 can be any value. Since the second graphene segment 222 is only located on one side of the first sub-part 110, the elongation and shortening of the second graphene segment 222 are not involved when the electronic device 10 switches between the flattened state and the closed state. Therefore, there is no requirement for the elongation e of the second graphene segment 222.

[0252] In one embodiment, the second graphene segment 222 has the same structure as the first graphene segment 221. The second graphene segment 222 also includes a graphene layer and two film layers located on opposite surfaces of the graphene layer along the first direction X. The edges of the two film layers are sealed to isolate the graphene layer from the outside. In one embodiment, one or both ends of the second graphene segment 222 along the second direction Y may also be connected to an elastic segment.

[0253] In one embodiment, the orthographic projection of the second graphene segment 222 onto the first sub-section 110 covers the entire or most of the first sub-section 110 to improve heat dissipation.

[0254] In one embodiment, the orthographic projection of the second graphene segment 222 onto the first sub-part 110 covers a portion of the first sub-part 110. It is understood that the larger the area of ​​the orthographic projection of the second graphene segment 222 onto the first sub-part 110, the better the heat dissipation capability of the graphene component 200 can be utilized.

[0255] In one embodiment, the second graphene segment 222 is located between the first graphene segment 221 and the first sub-segment 110 (e.g., Figure 16As shown, the second graphene segment 222 is fixedly connected to the first sub-part 110. This can be understood as the entire second graphene segment 222 being fixedly connected to the first sub-part 110, or a portion of the second graphene segment 222 being fixedly connected to the first sub-part 110. Alternatively, the second graphene segment 222 may be fixedly connected to the first sub-part 110 on one or both sides along the second direction Y. In one embodiment, the second graphene segment 222 is fixedly connected to the side of the first segment 2111 closest to the first sub-part 110.

[0256] In one embodiment, the second graphene segment 222 is located on the side of the first graphene segment 221 away from the first sub-part 110. In one embodiment, the electronic device 10 also includes a mid-frame 500, which is located on the side of the graphene component 200 away from the screen 100, and the second graphene segment 222 is located on the side of the first graphene segment 221 away from the first sub-part 110 (e.g., Figure 17 As shown in the diagram, the second graphene segment 222 is fixedly connected to the middle frame 500. This can be understood as the entire second graphene segment 222 being fixedly connected to the middle frame 500, or a portion of the second graphene segment 222 being fixedly connected to the middle frame 500. Alternatively, the second graphene segment 222 may be fixedly connected to the middle frame 500 on one or both sides along the second direction Y. In one embodiment, the second graphene segment 222 is fixedly connected to the side of the first segment 2111 near the middle frame 500.

[0257] Please see Figure 18 , Figure 18 This is a partial structural schematic diagram of the electronic device 10 provided in the fifth embodiment of this application. The fifth embodiment of this application provides an electronic device 10, which differs from the fourth embodiment in that the graphene component 200 further includes a third graphene segment 223. The third graphene segment 223 is located on one side of the second sub-part 120, and the third graphene segment 223 and the first graphene segment 221 are at least partially stacked along the first direction X. The third graphene segment 223 and the first graphene segment 221 are stacked, the first graphene segment 221 can slide relative to the third graphene segment 223, and the third graphene segment 223 can be fixed relative to the second sub-part 120. The arrangement of the third graphene segment 223 does not affect the free elongation or shortening of the first graphene segment 221, the first elastic segment 211, or the second elastic segment 212.

[0258] In one embodiment, a high-heat-generating component is located at the position corresponding to the second sub-part 120. Adding a third graphene segment 223 to one side of the second sub-part 120 improves the heat dissipation capacity of the graphene component 200. In another embodiment, a low-heat-generating component is located at the position corresponding to the second sub-part 120, and a high-heat-generating component is located at the position corresponding to the first sub-part 110. The second graphene segment 222 allows heat to be transferred more quickly from the side of the graphene component 200 located in the first sub-part 110 to the side of the graphene component 200 located in the second sub-part 120. The third graphene segment 223 allows heat to diffuse rapidly, enabling the heat of the electronic device 10 to be better and more evenly conducted and distributed to all corners of the entire device, thus achieving a heat dissipation effect that balances the overall heat dissipation. In another embodiment, a high-heat-generating component is located at the position corresponding to the second sub-part 120, and a low-heat-generating component is located at the position corresponding to the first sub-part 110.

[0259] In one embodiment, the graphene component 200 further includes a second elastic segment 212 (e.g., Figure 19 As shown, the second elastic segment 212 is located on one side of the second sub-part 120. The second elastic segment 212 is connected to the end of the first graphene segment 221 away from the first elastic segment 211, and part of the second elastic segment 212 is fixed relative to the second sub-part 120.

[0260] In one embodiment, the orthographic projection of the third graphene segment 223 onto the second sub-part 120 covers the entire or most of the second sub-part 120. In another embodiment, the orthographic projection of the third graphene segment 223 onto the second sub-part 120 covers a portion of the second sub-part 120. It is understood that the larger the area of ​​the orthographic projection of the third graphene segment 223 onto the second sub-part 120, the better the heat dissipation capacity of the graphene component 200 can be utilized.

[0261] In one embodiment, the elongation e of the third graphene segment 223 is greater than or equal to 0.3% and less than 1%. The calculation method for the elongation e of the third graphene segment 223 is the same as that for the graphene component 200. The difference is that the length L1 of the third graphene segment 223 refers to the length of the third graphene segment 223 in the second direction Y when the graphene component 200 is in a flattened state; the length L2 of the third graphene segment 223 refers to the length of the third graphene segment 223 after stretching when the graphene component 200 is in a closed state; and L3 is the same as that of the graphene component 200.

[0262] In one embodiment, the elongation e of the third graphene segment 223 can be any value. Since the third graphene segment 223 is only located on one side of the first sub-part 110, the elongation and shortening of the third graphene segment 223 are not involved when the electronic device 10 switches between the flattened state and the closed state. Therefore, there is no requirement for the elongation e of the third graphene segment 223.

[0263] In one embodiment, the elongation value of the third graphene segment 223 can be the same as or different from the elongation value e of the second graphene segment 222.

[0264] In one embodiment, the third graphene segment 223 has the same structure as the first graphene segment 221 or the second graphene segment 222. The third graphene segment 223 also includes a graphene layer and two film layers located on opposite surfaces of the graphene layer along the first direction X. The edges of the two film layers are sealed to isolate the graphene layer from the outside. In one embodiment, one or both ends of the third graphene segment 223 along the second direction Y may also be connected to an elastic segment.

[0265] In one embodiment, the third graphene segment 223 is located between the first graphene segment 221 and the second sub-part 120. The third graphene segment 223 is fixedly connected to the second sub-part 120. This can be understood as the entire third graphene segment 223 being fixedly connected to the second sub-part 120, or a portion of the third graphene segment 223 being fixedly connected to the second sub-part 120. Alternatively, the third graphene segment 223 may be fixedly connected to the second sub-part 120 on one or both sides along the second direction Y.

[0266] In one embodiment, the graphene component 200 further includes a second elastic segment 212, a portion of which is connected to the end of the first graphene segment 221 away from the first elastic segment 211, and a third graphene segment 223 is fixedly connected to the side of the fourth segment 2121 near the second sub-part 120. In one embodiment, the third graphene segment 223 is located between the first graphene segment 221 and the second sub-part 120, and the second graphene segment 222 is located between the first graphene segment 221 and the first sub-part 110. By placing both the third graphene segment 223 and the second graphene segment 222 between the first graphene segment 221 and the screen 100, space can be saved in the electronic device 10, and the thickness of the electronic device 10 can be reduced.

[0267] In one embodiment, the third graphene segment 223 is located on the side of the first graphene segment 221 away from the second sub-part 120. In another embodiment, the electronic device 10 further includes a mid-frame 500, which is located on the side of the graphene component 200 away from the screen 100. The third graphene segment 223 is located on the side of the first graphene segment 221 away from the second sub-part 120, and the third graphene segment 223 is fixedly connected to the mid-frame 500. This can be understood as the entire third graphene segment 223 being fixedly connected to the mid-frame 500, or a portion of the third graphene segment 223 being fixedly connected to the mid-frame 500. Alternatively, the third graphene segment 223 may be fixedly connected to the mid-frame 500 on one or both sides along the second direction Y. In one embodiment, the graphene component 200 further includes a second elastic segment 212, a portion of which is connected to the end of the first graphene segment 221 away from the first elastic segment 211, and a third graphene segment 223 is fixedly connected to the side of the fourth segment 2121 near the middle frame 500. In one embodiment, both the third graphene segment 223 and the second graphene segment 222 are located on the side of the first graphene segment 221 away from the screen 100, which can save space in the electronic device 10 and reduce the thickness of the electronic device 10. In one embodiment, one of the third graphene segment 223 and the second graphene segment 222 is located on the side of the first graphene segment 221 away from the screen 100, and the other of the third graphene segment 223 and the second graphene segment 222 is located between the first graphene segment 221 and the screen 100.

[0268] Please see Figure 20 , Figure 21 and Figure 22 , Figure 20 and Figure 21 These are partial structural schematic diagrams of the electronic device 10 provided in the sixth embodiment of this application. Figure 22This is a top view of the electronic device provided in the sixth embodiment of this application. The sixth embodiment of this application provides an electronic device 10, which differs from the first embodiment in that the graphene component 200 includes a second graphene layer 230 and two second film layers 240 located on opposite surfaces of the second graphene layer 230 along a first direction Y. The first direction Y intersects with the surface of the first sub-part 110 facing the graphene component 200. The second graphene layer 230 includes multiple stacked monolayer graphene. The edges of the two second film layers 240 are sealed to isolate the second graphene layer 230 from the outside. The second graphene layer 230 is located on one side of the bent portion, and both ends of the second graphene layer 230 extend to one side of the first sub-part 110 and the second sub-part 120, respectively. The elongation e of the second graphene layer 230 is greater than or equal to 5%. The calculation method for the elongation e of the second graphene layer 230 is the same as that for the graphene component 200. The difference is that the length L1 of the second graphene layer 230 refers to the length of the second graphene layer 230 in the second direction Y when the graphene component 200 is in a flattened state; the length L2 of the second graphene layer 230 refers to the length of the second graphene layer 230 after stretching when the graphene component 200 is in a closed state; and L3 is the same as that of the graphene component 200.

[0269] When the graphene component 200 switches between a flattened state and a closed state, the entire graphene component 200 can freely stretch or shrink. The second graphene layer 230 has a sufficiently large elongation e to meet the elongation e requirement of the graphene component 200 when switching between the flattened state and the closed state, ensuring that the graphene component 200 maintains structural integrity and is not torn apart, thus preventing the failure of its thermal conductivity.

[0270] The graphene component 200 allows heat to be evenly conducted and distributed to all corners of the entire body of the electronic device 10. In particular, heat is transferred between the corresponding parts of the first sub-part 110 and the corresponding positions of the second sub-part 120, so as to achieve a heat dissipation effect that balances the heat of the whole device.

[0271] In one embodiment, the thickness of the graphene component 200 is between 0.004 mm and 0.02 mm. In one embodiment, the graphene component 200 is fixedly connected to the screen 100 (e.g., Figure 20 (As shown). In one embodiment, the graphene component 200 is bonded to the screen 100. The bonding method can be that the entire side of the graphene component 200 near the screen 100 is bonded to the screen 100, or a portion of the side of the graphene component 200 near the screen 100 is bonded to the screen 100, or both ends of the graphene component 200 along the second direction Y are bonded to the screen 100.

[0272] In one embodiment, the electronic device 10 further includes a mid-frame 500, which is located on the side of the graphene component 200 away from the screen 100, and the graphene component 200 is fixedly connected to the mid-frame 500 (e.g., Figure 21 (As shown). In one embodiment, the graphene component 200 is bonded to the middle frame 500. The bonding method can be that one side of the graphene component 200 near the middle frame 500 is bonded to the middle frame 500, or a portion of the graphene component 200 near the middle frame 500 is bonded to the middle frame 500. Alternatively, both ends of the graphene component 200 along the second direction Y are bonded to the middle frame 500. In one embodiment, a portion of the graphene component 200 is connected to the middle frame 500, and a portion of the graphene component 200 is connected to the screen 100.

[0273] In one embodiment, when the graphene component 200 is in a flattened state, both surfaces of the graphene component 200 in the first direction X are flat, and the graphene component 200 is of uniform thickness in the first direction X (e.g., Figure 20 and Figure 21 (As shown). In one embodiment, the graphene component 200 may also have unequal thickness in the first direction X. The two surfaces of the graphene component 200 along the first direction may be set to an uneven state to fit as closely as possible with other components and ensure the heat dissipation capacity of the graphene component 200.

[0274] Please see Figure 23 , Figure 23 This is a partial structural schematic diagram of the electronic device 10 provided in the sixth embodiment of this application. In one possible implementation, the second graphene layer 230 includes a first graphene sub-part 231, a second graphene sub-part 232, and a third graphene sub-part 233 arranged side by side and interconnected with each other. The first graphene sub-part 231, the second graphene sub-part 232, and the third graphene sub-part 233 are respectively located on one side of the first sub-part 110, the bent part 130, and the second sub-part 120. The thickness of the second graphene sub-part 232 is greater than the thickness of the first graphene sub-part 231 and the third graphene sub-part 233. The thicknesses of the first graphene sub-part 231, the second graphene sub-part 232, and the third graphene sub-part 233 all refer to their thicknesses in the first direction X when they are in a flattened state. The thickness of the second graphene sub-part 232 is greater than the thickness of the first graphene sub-part 231, and the thickness of the second graphene sub-part 232 is greater than the thickness of the third graphene sub-part 233.

[0275] When the second graphene layer 230 is stretched, its thickness decreases. The second graphene sub-section 232 located on one side of the bending portion 130 is a region with large deformation. When the second graphene layer 230 is stretched, the thickness reduction of the second graphene sub-section 232 is significant, increasing the thickness of the second graphene sub-section 232 when it is flattened. When the second graphene layer 230 is closed, the thickness of the second graphene sub-section 232 decreases, so that the thickness of the second graphene sub-section 232 in the closed state is basically equal to that of the first graphene sub-section 231 and the third graphene sub-section 233. The overall thickness of the second graphene layer 230 tends to be uniform, ensuring that the heat dissipation of the graphene component 200 can be continuous, stable, and balanced.

[0276] In one possible implementation, the graphene component 200 further includes a second graphene segment 222 located on one side of the first sub-part 110. The second graphene segment 222 is at least partially stacked with the second film layer 240 along the first direction X, and the elongation of the graphene layer in the second graphene segment 222 is less than the elongation of the second graphene layer 230.

[0277] In one possible implementation, the graphene component 200 further includes a second graphene segment 222 and a third graphene segment 223 (e.g., Figure 24 As shown, the second graphene segment 222 is located on one side of the first sub-part 110, and the second graphene segment 222 is at least partially stacked with the second film layer 240 along the first direction X. The third graphene segment 223 is located on one side of the second sub-part 120, and the third graphene segment 223 is at least partially stacked with the second film layer 240 along the first direction X. In one embodiment, the second graphene segment 222 and the third graphene segment 223 are located on the same side or different sides of the second graphene layer 230 along the first direction X. In one embodiment, the second graphene segment 222 and the third graphene segment 223 are located on the side of the second graphene layer 230 closer to the screen 100. In one embodiment, the second graphene segment 222 and the third graphene segment 223 are located on the side of the second graphene layer 230 away from the screen 100.

[0278] In one possible implementation, the electronic device 10 further includes a mid-frame 500 located on the side of the graphene component 200 away from the screen 100, and a recess 501 (e.g., ...) is provided in the area of ​​the mid-frame 500 near the second graphene sub-part 232. Figure 23As shown, the second graphene sub-part 232 is at least partially housed in the groove 501. In one embodiment, the graphene component 200 is disposed close to the middle frame 500 on the side near the middle frame 500. When the side of the graphene component 200 near the middle frame 500 is flat, the side of the middle frame 500 near the graphene component 200 is also flat. When the thickness of the second graphene sub-part 232 is increased when it is flattened, the second graphene sub-part 232 will bulge towards the middle frame 500. At this time, a groove 501 is provided in the area of ​​the middle frame 500 near the second graphene sub-part 232 to accommodate the thickened portion of the second graphene sub-part 232, so that the overall thickness of the electronic device 10 tends to be uniform.

[0279] Please see Figure 8 and Figure 25 , Figure 25 This is a partial structural schematic diagram of the electronic device 10 provided in the sixth embodiment of this application. In one possible implementation, the electronic device 10 further includes a first middle frame portion 510, a second middle frame portion 520, and a door panel 530. The first middle frame portion 510 is located on the side of the graphene component 200 away from the first sub-part 110, and the second middle frame portion 520 is located on the side of the graphene component 200 away from the second sub-part 120. The portion of the graphene component 200 located on the side of the bent portion 130 has an opening 250, which is filled with adhesive. The adhesive connects the door panel 530 and the bent portion 130, so that the door panel 530 is bonded and fixed to the bent portion 130. The door panel 530 is located on the side of the graphene component 200 away from the opening 250. When the electronic device 10 switches from a flat state to a closed state, the bent portion 130 of the screen 100 is fixedly connected to the door panel 530, which can ensure the movement path of the screen 100 in the bent state.

[0280] In one embodiment, when the electronic device 10 is in a flattened state, the first middle frame portion 510, the door panel 530, and the second middle frame portion 520 are coplanar and abut against each other in sequence to form a complete panel. When the electronic device 10 is in a closed state, the first middle frame portion 510 and the second middle frame portion 520 are folded relative to each other. In another embodiment, when the electronic device 10 is in a flattened state, the first middle frame portion 510, the door panel 530, and the second middle frame portion 520 may also be spaced apart.

[0281] In one embodiment, the graphene component 200 has a plurality of openings 250 on one side of the bending portion 130 to enhance the adhesion between the door panel 530 and the bending portion 130. In one embodiment, the electronic device 10 may include a plurality of door panels 530, and the arrangement of the plurality of door panels 530 enables the smooth bending of the first middle frame portion 510, the second middle frame portion 520 and the door panels 530 as a whole.

[0282] Please see Figure 26 , Figure 26This is a partial structural schematic diagram of the display component 11 provided in the seventh embodiment of this application. The seventh embodiment of this application provides a display component 11, which has a flattened state and a closed state. The display component includes a screen 100 and a graphene component 200. The screen 100 includes a bent portion 130 and a first sub-part 110 and a second sub-part 120 located on both sides of the bent portion 130. In the flattened state, the first sub-part 110, the bent portion 130 and the second sub-part 120 are coplanar. In the closed state, the first sub-part 110 and the second sub-part 120 are folded relative to each other. At least a portion of the graphene component 200 is located on one side of the bent portion 130, and both ends of the graphene component 200 extend to one side of the first sub-part 110 and the second sub-part 120, respectively. The graphene component 200 has elastic stretching properties. The graphene component 200 is simultaneously disposed on one side of the first sub-part 110 and the second sub-part 120. Heat can be transferred between the first sub-part 110 and the second sub-part 120 through the graphene component 200 to achieve a balanced heat dissipation effect for the entire display assembly 11.

[0283] In some embodiments, the display component 11 further includes a mid-frame 500. The descriptions and modifications of the screen 100, graphene component 200, and mid-frame 500 in the foregoing embodiments of the electronic device 10 are applicable to the screen 100, graphene component 200, and mid-frame 500 in the display component 11 of this embodiment. The descriptions and modifications of the connection and positional relationships between the graphene component 200 and the screen 100 and mid-frame 500 in the foregoing embodiments of the electronic device 10 are applicable to the connection and positional relationships between the graphene component 200 and the screen 100 and mid-frame 500 in the display component 11 of this embodiment. Further details will not be repeated here.

[0284] The display components and electronic devices provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and embodiments of this application. The description of the embodiments above is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in specific embodiments and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display component (11), characterized in that, It has two states: a flattened state and a closed state, including: The screen (100) includes a bent portion (130) and a first sub-part (110) and a second sub-part (120) located on both sides of the bent portion (130). In the flattened state, the first sub-part (110), the bent portion (130) and the second sub-part (120) are coplanar. In the closed state, the first sub-part (110) and the second sub-part (120) are folded relative to each other. A graphene component (200) having elastic stretching properties, the graphene component (200) including a first elastic segment (211) and a first graphene segment (221) connected to each other, the first elastic segment (211) being located on one side of the first sub-part (110) and being able to stretch relative to the first sub-part (110), the elongation of the first elastic segment (211) being greater than the elongation of the first graphene segment (211); The first graphene segment (221) includes a first graphene layer (2211) and two first film layers (2212) located on opposite surfaces of the first graphene layer (2211) along a first direction (X). The first direction (X) intersects with the surface of the first sub-part (110) facing the first graphene segment (221). The first graphene layer (2211) comprises multiple stacked monolayer graphene layers. The edges of the two first film layers (2212) are sealed to isolate the first graphene layer (2211) from the outside. The first graphene layer (2211) is located on one side of the bent portion (130), and the two ends of the first graphene layer (2211) extend to one side of the first sub-part (110) and the second sub-part (120), respectively. Part of the first elastic segment (211) is connected to the first film layer (2212), and part of the first elastic segment (211) overlaps at least partially with the two first film layers (2212) along the first direction (X). The first elastic segment (211) does not overlap with the first graphene layer (2211) along the first direction (X).

2. The display assembly (11) according to claim 1, characterized in that The graphene component (200) further includes a second elastic segment (212), which is located on one side of the second sub-part (120) and is stretchable relative to the second sub-part (120). The second elastic segment (212) is connected to the end of the first graphene segment (221) away from the first elastic segment (211), and at least part of the second elastic segment (212) is fixed relative to the second sub-part (120). The elongation of the second elastic segment (212) is greater than the elongation of the first graphene segment (211).

3. The display component (11) according to claim 1, characterized in that, The first elastic segment (211) includes a first segment (2111), a second segment (2112), and a third segment (2113) connected in sequence. The first sub-part (110) includes a display surface (101) and a back surface (102) disposed opposite to each other. The first segment (2111) is connected to the back surface (102) of the first sub-part (110) and is fixed relative to the first sub-part (110). The second segment (2112) is capable of being pulled relative to the first sub-part (110). The third segment (2113) is connected to the first graphene segment (221), the third segment (2113) and the two first film layers (2212) overlap at least partially along the first direction (X), the third segment (2113) and the first graphene layer (2211) do not overlap along the first direction (X), the elongation of the second segment (2112) is greater than the elongation of the first segment (2111) and greater than the elongation of the third segment (2113).

4. The display assembly (11) according to claim 3, characterized in that The display assembly (11) further includes a first adhesive layer (410) located between the first segment (2111) and the back surface (102) of the first sub-part (110) to connect the first segment (2111) and the first sub-part (110), wherein the surface of the first graphene segment (221) away from the first sub-part (110) is bonded to the third segment (2113).

5. The display assembly (11) according to claim 1, characterized in that The display component (11) further includes a middle frame (500) located on the side of the graphene component (200) away from the screen (100); the first elastic segment (211) includes a first segment (2111), a second segment (2112) and a third segment (2113) connected in sequence, the first segment (2111) being connected to the middle frame (500) and fixed relative to the first sub-part (110), the second segment (2112) being stretchable relative to the middle frame (500), the third segment (2113) being connected to the first graphene segment (221), the third segment (2113) being at least partially overlapping the two first film layers (2212) along the first direction (X), and the third segment (2113) not overlapping the first graphene layer (2211) along the first direction (X).

6. The display component (11) according to claim 5, characterized in that, The display component (11) further includes a second adhesive layer (420) located between the first segment (2111) and the middle frame (500) to connect the first segment (2111) to the middle frame (500), wherein the surface of the first graphene segment (221) away from the middle frame (500) is bonded to the third segment (2113).

7. The display component (11) according to claim 1, characterized in that, The graphene component (200) further includes a second graphene segment (222) located on one side of the first sub-part (110), the second graphene segment (222) and the first graphene segment (221) being at least partially stacked along a first direction (X), the first direction (X) intersecting with the surface of the second graphene segment (222) facing the first sub-part (110).

8. The display assembly (11) according to claim 7, characterized in that The graphene component (200) further includes a third graphene segment (223) located on one side of the second sub-component (120), and the third graphene segment (223) is at least partially stacked with the first graphene segment (221) along the first direction (X).

9. A display assembly (11) according to any one of claims 1-8, characterized in that The elongation of the graphene component (200) is greater than or equal to 5%.

10. The display assembly (11) according to claim 9, characterized in that The elongation of the first graphene layer (2211) is greater than or equal to 0.3% and less than 1%; the elongation of the first elastic segment (211) is greater than or equal to 10%.

11. The display assembly (11) according to claim 1, characterized in that The display component (11) further includes a first middle frame (510), a second middle frame (520), and a door panel (530). The first middle frame (510) is located on the side of the graphene component (200) away from the first middle frame (110). The second middle frame (520) is located on the side of the graphene component (200) away from the second middle frame (120). The portion of the graphene component (200) located on the side of the bent portion (130) is provided with an opening (250). The opening (250) is filled with adhesive. The adhesive connects the door panel (530) and the bent portion (130) so that the door panel (530) is fixedly connected to the bent portion (130).

12. An electronic device (10), characterized by It has two states: a flattened state and a closed state, including: The housing device (300) includes a first housing (310), a second housing (320), and a folding assembly (330). The folding assembly (330) connects the first housing (310) and the second housing (320). The first housing (310) and the second housing (320) can be relatively unfolded or relatively folded by the movement of the folding assembly (330). The screen (100), mounted on the housing device (300), includes a bending portion (130) and a first sub-part (110) and a second sub-part (120) located on both sides of the bending portion (130). The first sub-part (110) is located on one side of the first housing (310), and the second sub-part (120) is located on one side of the second housing (320). The bending portion (130) is located on one side of the folding assembly (330). In the flattened state, the first sub-part (110), the bending portion (130), and the second sub-part (120) are coplanar. In the closed state, the first sub-part (110) and the second sub-part (120) are folded relative to each other. A graphene component (200) having elastic stretching properties, the graphene component (200) including a first elastic segment (211) and a first graphene segment (221) connected to each other, the first elastic segment (211) being located on one side of the first sub-part (110) and being able to stretch relative to the first sub-part (110), the elongation of the first elastic segment (211) being greater than the elongation of the first graphene segment (211); The first graphene segment (221) includes a first graphene layer (2211) and two first film layers (2212) located on opposite surfaces of the first graphene layer (2211) along a first direction (X). The first direction (X) intersects with the surface of the first sub-part (110) facing the first graphene segment (221). The first graphene layer (2211) comprises multiple stacked monolayer graphene layers. The edges of the two first film layers (2212) are sealed to isolate the first graphene layer (2211) from the outside. The first graphene layer (2211) is located on one side of the bent portion (130), and the two ends of the first graphene layer (2211) extend to one side of the first sub-part (110) and the second sub-part (120), respectively. Part of the first elastic segment (211) is connected to the first film layer (2212), and part of the first elastic segment (211) overlaps at least partially with the two first film layers (2212) along the first direction (X). The first elastic segment (211) does not overlap with the first graphene layer (2211) along the first direction (X).

13. The electronic device (10) according to claim 12, characterized by The graphene component (200) further includes a second elastic segment (212), which is located on one side of the second sub-part (120) and is stretchable relative to the second sub-part (120). The second elastic segment (212) is connected to the end of the first graphene segment (221) away from the first elastic segment (211), and at least part of the second elastic segment (212) is fixed relative to the second sub-part (120). The elongation of the second elastic segment (212) is greater than the elongation of the first graphene segment (211).

14. The electronic device (10) according to claim 12, characterized by The first elastic segment (211) includes a first segment (2111), a second segment (2112), and a third segment (2113) connected in sequence. The first sub-part (110) includes a display surface (101) and a back surface (102) disposed opposite to each other. The first segment (2111) is connected to the back surface (102) of the first sub-part (110) and is fixed relative to the first sub-part (110). The second segment (2112) is capable of being pulled relative to the first sub-part (110). The third segment (2113) is connected to the first graphene segment (221), the third segment (2113) and the two first film layers (2212) overlap at least partially along the first direction (X), the third segment (2113) and the first graphene layer (2211) do not overlap along the first direction (X), the elongation of the second segment (2112) is greater than the elongation of the first segment (2111) and greater than the elongation of the third segment (2113).

15. The electronic device (10) according to claim 14, characterized by The electronic device (10) further includes a first adhesive layer (410) located between the first segment (2111) and the back surface (102) of the first sub-part (110) to connect the first segment (2111) and the first sub-part (110), wherein the surface of the first graphene segment (221) away from the first sub-part (110) is bonded to the third segment (2113).

16. The electronic device (10) of claim 12, characterized by The electronic device (10) further includes a mid-frame (500) located on the side of the graphene component (200) away from the screen (100); the first elastic segment (211) includes a first segment (2111), a second segment (2112) and a third segment (2113) connected in sequence, the first segment (2111) being connected to the mid-frame (500) and fixed relative to the first sub-part (110), the second segment (2112) being stretchable relative to the mid-frame (500), the third segment (2113) being connected to the first graphene segment (221), the third segment (2113) being at least partially overlapping the two first film layers (2212) along the first direction (X), and the third segment (2113) not overlapping the first graphene layer (2211) along the first direction (X).

17. The electronic device (10) according to claim 12, characterized in that, The graphene component (200) further includes a second graphene segment (222) located on one side of the first sub-part (110), the second graphene segment (222) and the first graphene segment (221) being at least partially stacked along a first direction (X), the first direction (X) intersecting with the surface of the second graphene segment (222) facing the first sub-part (110).

18. The electronic device (10) according to claim 17, characterized in that, The graphene component (200) further includes a third graphene segment (223) located on one side of the second sub-component (120), and the third graphene segment (223) is at least partially stacked with the first graphene segment (221) along the first direction (X).

19. The electronic device (10) according to any one of claims 12-18, characterized by The elongation of the first graphene layer (2211) is greater than or equal to 0.3% and less than 1%; the elongation of the first elastic segment (211) is greater than or equal to 10%.

20. The electronic device (10) of claim 12, characterized by The electronic device (10) further includes a first middle frame (510), a second middle frame (520), and a door panel (530). The first middle frame (510) is located on the side of the graphene component (200) away from the first sub-part (110). The second middle frame (520) is located on the side of the graphene component (200) away from the second sub-part (120). The portion of the graphene component (200) located on the side of the bent portion (130) is provided with an opening (250). The opening (250) is filled with adhesive. The adhesive connects the door panel (530) and the bent portion (130) so that the door panel (530) is fixedly connected to the bent portion (130).

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