Support assembly, display module, and display device

Abstract

A support assembly, a display module, and a display device. The support assembly comprises: a support layer, located on a backlight side of a screen and connected to the screen, wherein the support layer comprises a first hollow area perpendicular to the screen, the support layer is configured to bend along a bending centerline thereof, so that the screen switches between an unfolded state and a bent state, and in the plane of the support layer, the first hollow area is located on one side of the bending centerline; and a heat dissipation member, comprising a fixed end and a movable end arranged opposite to each other, wherein the fixed end is configured to be connected to the support layer, and the movable end passes through the first hollow area, so that one of the fixed end and the movable end is located on the side of the support layer close to the screen, and the other end is located on the side of the support layer distant from the screen. The orthographic projection of the heat dissipation member on the support layer overlaps with the orthographic projection of the bending centerline on the support layer, and the movable end is configured to move as the screen switches between states.

Description

Support components, display modules and display devices

[0001] This application claims priority to Chinese patent application No. 202510389174.X, filed on March 28, 2025, entitled “Support Component, Display Module and Display Device”, the contents of which are to be construed as incorporated herein by reference. Technical Field

[0002] This article relates to, but is not limited to, display technology, and in particular to a support component, display module, and display device. Background Technology

[0003] Foldable screens are an application form of flexible display panels. For foldable screen display panels, a support component needs to be set under the screen. In addition to providing support to the screen in the flat and bent states, the support component should also have a certain heat dissipation capacity to ensure the normal operation of the screen. Summary of the Invention

[0004] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.

[0005] In a first aspect, embodiments of this disclosure provide a support component, comprising: a support layer located on the backlight side of a screen and connected to the screen; including a first cutout area perpendicular to the screen; the support layer being configured to bend along its own bending center line, allowing the screen to switch between an unfolded state and a bent state; within the plane of the support layer, the first cutout area is located on one side of the bending center line; a heat sink, including a fixed end and a movable end, the fixed end being connected to the support layer, and the movable end passing through the first cutout area, such that one end of the fixed end and the movable end are located on the side of the support layer closer to the screen, and the other end is located on the side of the support layer away from the screen; wherein the orthographic projection of the heat sink on the support layer and the orthographic projection of the bending center line on the support layer overlap each other, and the movable end is configured to move with the state switching of the screen.

[0006] In one exemplary embodiment, the support layer includes a through-hole area, the through-hole area including a plurality of through holes penetrating the support layer, the orthographic projection of the bending center line on the support layer and the orthographic projection of the through-hole area on the support layer overlap each other; in the plane of the support layer, the first hollow area is located on one side of the through-hole area along a first direction, the bending center line extends along a second direction, and the first direction and the second direction intersect; the orthographic projection of the heat sink on the support layer.

[0007] In one exemplary embodiment, the support layer further includes a first blind hole region and a second blind hole region, the first blind hole region and the second blind hole region including a plurality of blind holes; the first blind hole region and the second blind hole region are respectively located on both sides of the through hole region along the first direction; in the plane of the support layer, the first hollow area is located on the side of the first blind hole region or the second blind hole region away from the through hole region, and the orthographic projection of the heat sink on the support layer overlaps with the orthographic projections of the through hole region, the first blind hole region and the second blind hole region on the support layer.

[0008] In one exemplary embodiment, the support layer is connected to the screen via a first adhesive layer, the first adhesive layer including a second cutout area perpendicular to the screen, the orthographic projection of the first cutout area on the support layer and the orthographic projection of the second cutout area on the support layer overlapping each other; the heat sink located on the side of the support layer away from the screen is located within the second cutout area.

[0009] In one exemplary embodiment, the fixing end is located on the side of the support layer away from the screen, and the fixing end is connected to the surface of the support layer away from the screen via a second adhesive layer.

[0010] In one exemplary embodiment, in a direction perpendicular to the support layer, the thickness of the heat sink located on the side of the support layer closer to the screen is greater than the thickness of the heat sink located on the side of the support layer farther from the screen.

[0011] In one exemplary embodiment, the fixing end is located on the side of the support layer near the screen, and within the second cutout area, the fixing end is connected to the support layer via a third adhesive layer.

[0012] In one exemplary embodiment, within the second cutout area, the fixed end is connected to the screen via a fourth adhesive layer.

[0013] In one exemplary embodiment, the fixing end is located on the side of the support layer near the screen, and the first adhesive layer includes a substrate and a first sub-adhesive layer and a second sub-adhesive layer disposed on both sides of the substrate. The first sub-adhesive layer is configured to be connected to the support layer, and the second sub-adhesive layer is configured to be connected to the screen. In the second cutout area, a portion of the substrate of the first adhesive layer is removed, and the fixing end extends into the first adhesive layer in which the substrate has been removed, and is connected to the first sub-adhesive layer and the second sub-adhesive layer.

[0014] In one exemplary embodiment, the heat sink comprises a graphite material.

[0015] Secondly, embodiments of this disclosure provide a display module, including: a screen and a support component as described above, the support component being disposed on the backlight side surface of the screen.

[0016] In one exemplary embodiment, the screen includes a display substrate, a polarizer, and a cover plate arranged sequentially; the display substrate is connected to the support assembly.

[0017] In one exemplary embodiment, a hinge structure is further included, the hinge structure being located on the side of the heat sink away from the screen and in contact with the heat sink.

[0018] In one exemplary embodiment, the orthographic projection of the position where the hinge structure contacts the heat sink on the support assembly overlaps with at least one of the through-hole area, the first blind hole area, and the second blind hole area.

[0019] Thirdly, embodiments of this disclosure provide a display device, including the support component as described above; or, including the display module as described above.

[0020] After reading and understanding the accompanying diagrams and detailed descriptions, the other aspects can be understood.

[0021] Overview of the attached figures

[0022] The accompanying drawings are used to provide an understanding of the technical solutions of this disclosure and form part of the specification. They are used together with the embodiments of this disclosure to explain the technical solutions of this disclosure and do not constitute a limitation on the technical solutions of this disclosure.

[0023] Figure 1 is a top view of a display module;

[0024] Figure 2 is a cross-sectional view of the support component in Figure 1 along the AA direction;

[0025] Figure 3 is a top view of a support component in an exemplary embodiment;

[0026] Figure 4 is a cross-sectional view of Figure 3 along the AA direction in an exemplary embodiment;

[0027] Figure 5 is a bottom view of the support component in Figure 3 in an exemplary embodiment;

[0028] Figure 6 is a top view of the support component in yet another exemplary embodiment;

[0029] Figure 7 is a cross-sectional view of Figure 6 along the AA direction in an exemplary embodiment;

[0030] Figure 8 is a schematic diagram showing the positional change of the movable end of the module before and after bending in an exemplary embodiment;

[0031] Figure 9 is a schematic diagram showing the positional change of the movable end of the module before and after bending in another exemplary embodiment.

[0032] Detailed Explanation

[0033] This disclosure describes several embodiments, but these descriptions are exemplary and not restrictive, and many more embodiments and implementations are possible within the scope of the embodiments described herein, which will be apparent to those skilled in the art. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with or in lieu of any other feature or element in any other embodiment.

[0034] This disclosure includes and contemplates combinations of features and elements known to those skilled in the art. The embodiments, features, and elements disclosed in this disclosure may also be combined with any conventional features or elements to form a unique inventive scheme as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive schemes to form another unique inventive scheme as defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in this disclosure may be implemented individually or in any suitable combination. Therefore, the embodiments are not limited except by the limitations imposed by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.

[0035] Furthermore, in describing representative embodiments, the specification may have presented methods and / or processes as a specific sequence of steps. However, the method or process should not be limited to the specific order of steps described herein, to the extent that the method or process does not depend on the specific order of steps described herein. As will be understood by those skilled in the art, other sequences of steps are also possible. Therefore, the specific order of steps set forth in the specification should not be construed as a limitation of the claims. Moreover, the claims relating to the method and / or process should not be limited to the steps performed in the order written, and those skilled in the art will readily understand that these orders can be varied and still remain within the spirit and scope of the embodiments disclosed herein.

[0036] In the accompanying drawings, the size of one or more constituent elements, the thickness of layers, or areas are sometimes exaggerated for clarity. Therefore, this disclosure is not necessarily limited to these dimensions, and the shape and size of one or more parts in the drawings do not reflect true proportions. Furthermore, the drawings schematically illustrate ideal examples, and this disclosure is not limited to the shapes or values ​​shown in the drawings.

[0037] The ordinal numbers such as "first," "second," and "third" used in this specification are used to avoid confusion among the constituent elements, not to limit the quantity. The term "multiple" in this disclosure refers to two or more quantities.

[0038] In this specification, for convenience, terms such as "middle," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships in conjunction with the accompanying drawings. This is solely for the purpose of facilitating the description and simplification, and does not imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this disclosure. The positional relationships of the constituent elements may be appropriately varied depending on the orientation of the constituent elements being described. Therefore, the use of terms not limited to those described in the specification may be appropriately replaced as needed.

[0039] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection, an indirect connection via an intermediate component, or a connection within two components. Those skilled in the art will understand the meaning of these terms in this disclosure as appropriate. "Electrical connection" includes situations where constituent elements are connected together by a component having some electrical function. There are no particular limitations on the term "component having some electrical function," as long as it allows for the transmission of electrical signals between the connected constituent elements. Examples of "component having some electrical function" include not only electrodes and wiring, but also switching elements such as transistors, resistors, inductors, capacitors, and other components with various functions.

[0040] In this specification, "parallel" refers to the state where the angle formed by two straight lines is greater than or equal to -10° and less than 10°, and therefore also includes the state where the angle is greater than or equal to -5° and less than 5°. Similarly, "perpendicular" refers to the state where the angle formed by two straight lines is greater than or equal to 80° and less than 100°, and therefore also includes the state where the angle is greater than or equal to 85° and less than 95°.

[0041] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0042] Figure 1 is a top view of a display module. As shown in Figure 1, the display module includes a screen 1 and a support assembly 2. The screen 1 includes a light-emitting side surface and a backlight side surface. The light-emitting side surface is used to display images, and the backlight side surface is connected to the support assembly 2. Figure 1 illustrates the backlight side surface of the screen 1 in its unfolded state. The plane containing the first direction X and the second direction Y is the plane where the screen is in its unfolded state. The first direction X and the second direction Y intersect each other; for example, the first direction X and the second direction Y can be perpendicular to each other. The display module includes a bending center line O extending along the second direction Y. The display module of Figure 1 can be bent along the bending center line O, so that the two ends of the screen 1 along the first direction X move closer to each other, switching to a bent state. The display module can include an inward folded state and an outward folded state. During the switching from the unfolded state to the inward folded state, the surfaces of the screen 1 located on both sides of the bending center line O move towards each other. After bending, the screen 1 is located inside the display module. During the transition from the unfolded state to the outward folded state, the surfaces of screen 1 located on both sides of the bending center line O move in opposite directions, and screen 1 is located outside the display module after bending.

[0043] As shown in Figure 1, the size of screen 1 in the first direction X can be larger than the size of support assembly 2 in the first direction X. For example, screen 1 and support assembly 2 can both be axially symmetrical along the center line O. The sizes of screen 1 and support assembly 2 in the second direction Y can be the same. Support assembly 2 includes a through-hole area 210 and a blind hole area 220 extending along the second direction Y. The bending center line O is located within the through-hole area 210, and multiple through holes penetrating the support assembly 2 are provided within the through-hole area 210. The blind hole area 220 is located on both sides of the through-hole area 210 along the first direction X, and multiple blind holes are provided. When the display module is bent, the support component 2 near the bending center line O will be bent, and the internal stress accumulated here is relatively large. By setting a through hole area 210 near the bending center line O, the display module can be bent more easily, which helps the bending process to proceed smoothly. However, the position near the through hole area 210 needs to withstand a large deformation. By setting a blind hole area 220, the support component 2 can be guaranteed to have a certain mechanical strength, and multiple through holes and blind holes can play a role in releasing stress, which helps to extend the service life of the support component 2 and the display module.

[0044] Figure 2 is a cross-sectional view of the support component in Figure 1 along the AA direction. As shown in Figure 2, the third direction Z can be the direction perpendicular to the display module in the unfolded state. The "direction perpendicular to the screen" and "direction perpendicular to the support layer" mentioned in this disclosure both refer to the third direction Z, while "plane of the support layer" refers to the plane of the support layer in the unfolded state of the screen. The support component 2 may include a support layer 21 and a heat sink 22. The support layer 21 can be connected to the screen 1 through a first adhesive layer 23, which can be coated on the entire surface of the support layer 21. The heat sink 22 is located on the side of the support layer 21 away from the screen 1. The heat sink 22 can be connected to the support layer 21 through a second adhesive layer 24. The second adhesive layer 24 can avoid the through hole area 210 and the blind hole area 220. For example, the second adhesive layer 24 can stick the heat sink 22 to the support layer 21 along the two edges of the first direction X. The middle part of the heat sink 22 may not be covered with adhesive, thereby facilitating the bending of the display module. The first adhesive layer 23 can be a fluorinated ethylene propylene copolymer (FEP) adhesive, and the second adhesive layer 24 can be a pressure-sensitive adhesive (PSA).

[0045] In the solution shown in Figure 2, the heat sink 22 is attached to the side of the support layer 21 away from the screen 1, which occupies a lot of space and is not conducive to reducing the thickness of the display module. Furthermore, the heat sink 22 is fixed to the support layer 21 on both sides along the first direction X, and the heat sink 22 is at risk of breakage when it is bent with the display module.

[0046] This disclosure provides a support component, including:

[0047] A support layer is located on the backlight side of the screen and connected to the screen; it includes a first cutout area perpendicular to the screen; the support layer is configured to bend along its own bending center line, so that the screen can switch between an unfolded state and a bent state; in the plane of the support layer, the first cutout area is located on one side of the bending center line.

[0048] The heat sink includes a fixed end and a movable end. The fixed end is configured to be connected to the support layer, and the movable end passes through the first hollow area, such that one end of the fixed end and the movable end are located on the side of the support layer closer to the screen, and the other end is located on the side of the support layer away from the screen.

[0049] The orthographic projection of the heat sink on the support layer and the orthographic projection of the bending center line on the support layer overlap each other, and the movable end is configured to move as the screen's state changes.

[0050] The support component provided in this embodiment, by creating a first hollow area in the support layer, allows the heat sink to pass through the first hollow area and overlap with the bending center line. This reduces the space occupied by the heat sink, facilitating thinning of the display module. By enabling the movable end of the heat sink to move with the screen's state changes, stress on the heat sink during bending can be effectively released, preventing breakage and extending the lifespan of both the heat sink and the display module, thus improving bending quality. Furthermore, the heat sink is closer to the heat source of the display module, resulting in better heat dissipation efficiency.

[0051] Figure 3 is a top view of the support component in an exemplary embodiment, illustrating the surface of the support component away from the screen 1. Figure 4 is a cross-sectional view of Figure 3 along the AA direction in an exemplary embodiment. Figure 5 is a bottom view of the support component in Figure 3 in an exemplary embodiment, illustrating the surface of the support component 2 near the screen 1. Referring to Figures 3 to 5, the support component 2 includes a support layer 21 and a heat sink 22. The support layer 21 is located on one side of the screen (not shown) and connected to the screen. The support layer 21 includes a through-hole region 210 extending along a second direction Y and a first hollow region 230. The through-hole region 210 includes a plurality of through holes penetrating the support layer 21, and at least a portion of the orthographic projection of the bending center line O onto the support layer 21 falls within the area of ​​the through-hole region 210. The support layer 21 within the first hollow region 230 is removed, forming a hollow structure in the third direction Z of the support layer 21. The heat sink 22 includes a fixed end 22A and a movable end 22B disposed opposite to each other along the first direction X. The fixed end 22A can be located on the side of the support layer 21 closer to the screen and connected to the support layer 21. The movable end 22B passes through the first cutout area 230 and is located on the side of the support layer 21 away from the screen. The heat sink 22 and the bending center line O overlap each other. The movable end 22B can move as the display module switches between the unfolded state and the bent state. The movable end 22B can be located on the side of the through hole area 210 away from the first cutout area 230, and the fixed end 22A can be located on the side of the first cutout area 230 away from the through hole area 210. By creating a first hollow area 230 on the support layer 21, the heat sink 22 passes through the first hollow area 230 and overlaps with the bending center line O. The heat sink 22 occupies less space in the whole machine, which helps to reduce the thickness of the display module. In addition, the heat sink 22 is closer to the heat source of the display module, resulting in better heat dissipation efficiency. By setting the movable end of the heat sink 22 to move with the screen state switching, the stress of the heat sink 22 during the bending process can be effectively released, preventing the heat sink 22 from breaking and improving the service life of the heat sink 22 and the display module.

[0052] In an exemplary embodiment, the bending center line O can be, for example, the symmetry line of screen 1, and the surfaces of screen 1 on both sides of the bending center line O can be symmetrical to each other, so that the display module has a smaller volume after bending; or, the surfaces of screen 1 on both sides of the bending center line O can be asymmetrical, so that the display module can have different shapes after bending.

[0053] In an exemplary embodiment, the support layer 21 further includes a blind hole region 220, which may include a first blind hole region 221 and a second blind hole region 222. The first blind hole region 221 and the second blind hole region 222 are respectively located on both sides of the through hole region 210 along the first direction X. The first hollow region 230 may be located on the side of the first blind hole region 221 away from the through hole region 210, or the first hollow region 230 may be located on the side of the second blind hole region 222 away from the through hole region 210. The orthographic projection of the heat sink 22 on the support layer 21 may overlap with the orthographic projections of the through hole region 210 and the blind hole region 220 on the support layer 21, and may be located on both sides of the first blind hole region 221 and the second blind hole region 222 in the first direction X.

[0054] In an exemplary embodiment, the support layer 21 can be connected to the screen via a first adhesive layer 23. The first adhesive layer 23 may include a second cutout area 231. A portion of the first adhesive layer 23 within the second cutout area 231 is removed, forming a cutout structure in the third direction Z of the first adhesive layer 23. The orthographic projection of the first cutout area 230 onto the support layer 21 can overlap with the orthographic projection of the second cutout area 231 onto the support layer 21. For example, the orthographic projection of the first cutout area 230 onto the support layer 21 can be located within the range of the orthographic projection of the second cutout area 231 onto the support layer 21. The fixing end 22A can be fixed to the support layer 21 within the second cutout area 231.

[0055] In an exemplary embodiment, the fixed end 22A can be connected to the support layer 21 via the third adhesive layer 25. The fixed end 22A can be connected to the screen via the fourth adhesive layer 26. By setting the fixed end 22A to be connected to both the support layer 21 and the screen, the fixed end 22A is more stable, and the heat sink 22 is less likely to fall off the support layer 21.

[0056] In an exemplary embodiment, the first adhesive layer 23 may include a substrate and a first sub-adhesive layer and a second sub-adhesive layer disposed on both sides of the substrate. A portion of the first adhesive layer 23 within the second cutout area 231, as well as another portion of the substrate of the first adhesive layer 23, can be removed. The fixing end 22A can extend into the removed substrate. The first adhesive layer 23 is connected to the support layer 21 and the screen respectively through its original first and second sub-adhesive layers, thus saving costs. Referring to Figure 4, the third adhesive layer 25 can be considered as the first sub-adhesive layer, and the fourth adhesive layer 26 can be considered as the second sub-adhesive layer. The first and second sub-adhesive layers can be, for example, pressure-sensitive adhesives. The substrate can be, for example, polyimide (PI).

[0057] In an exemplary embodiment, the heat sink 22 may include graphite material, such as graphite sheets or graphite bags. The graphite bag can be a structure formed by sandwiching graphite in the middle using a material such as polyethylene terephthalate (PET). The graphite bag can prevent graphite powder from falling off the heat sink 22 due to friction. The heat sink 22 may also include other materials, and this disclosure is not limiting in this regard.

[0058] In an exemplary embodiment, the display module may further include a hinge structure (not shown), which may be located on the side of the heat sink 22 away from the screen, and is configured to provide support and motion guidance to prevent localized excessive deformation. The hinge structure may contact the heat sink 22, which helps to restrict the movement of the heat sink 22 in the third direction Z and prevent the heat sink 22 from arching.

[0059] In an exemplary embodiment, the material of the support layer 21 can be a metallic material, such as titanium (Ti), stainless steel, etc., or the material of the support layer 21 can be a carbon fiber reinforced polymer (CFRP) composite material, etc., and this disclosure does not limit it.

[0060] In an exemplary embodiment, the through holes in the through-hole region 210 can penetrate the support layer 21 in the second direction Y, or the through holes in the through-hole region 210 can penetrate the support layer 21 in the third direction Z. The extension direction of the blind holes in the blind hole region 220 can be either the second direction Y or the third direction Z. For example, multiple through holes can penetrate the support layer 21 in the third direction Z, and multiple blind holes can extend along the third direction Z, which can be designed as needed.

[0061] Figure 6 is a top view of the support component in another exemplary embodiment, illustrating the surface of the support component away from screen 1. Figure 7 is a cross-sectional view of Figure 6 along direction AA in an exemplary embodiment. The difference between Figure 6 and Figure 3 is the different positions of the fixed end and the movable end, as well as the different position of the first cutout area 230. The rest can be referred to the foregoing description of Figures 3 to 5, and will not be repeated here.

[0062] Referring to Figures 6 and 7, the fixed end 22A can be located on the side of the support layer 21 away from the screen and connected to the support layer 21. The movable end 22B passes through the first cutout area 230 and is located on the side of the support layer 21 closer to the screen. The movable end 22B can move as the display module switches between the unfolded and bent states. The fixed end 22A can be located on the side of the first cutout area 230 away from the bending center line O. The length of the second cutout area 231 along the first direction X can be set longer to prevent the movable end 22B from passing through the first cutout area 230 during bending. The positions of the fixed end 22A and the movable end 22B can be set as needed, and this disclosure does not impose any limitations on this.

[0063] In an exemplary embodiment, the fixed end 22A can be connected to the side of the support layer 21 away from the screen via the second adhesive layer 24.

[0064] In an exemplary embodiment, along the third direction Z, the thickness of the heat sink 22 located on the side of the support layer 21 near the screen can be greater than the thickness of the heat sink 22 located on the side of the support layer 21 away from the screen, so that the thickness of the movable end 22B side is close to the thickness of the first adhesive layer 23, which helps to limit the heat sink 22 located on the side of the support layer 21 near the screen along the third direction Z, and prevent the movable end 22B from arching during movement.

[0065] This disclosure also provides a display module, including a screen and a support component as described above, the support component being disposed on the backlight side surface of the screen.

[0066] Figure 8 is a schematic diagram of the positional change of the movable end of the display module before and after bending in an exemplary embodiment, illustrating a cross-sectional view along the AA direction of the display module in Figure 1 before and after inward folding. As shown in Figure 8, the screen 1 includes a display substrate 11, a polarizer 12, a fifth adhesive layer 13, and a cover plate 14 arranged sequentially along the direction away from the support component 2. The fifth adhesive layer 13 is used to connect the polarizer 12 and the cover plate 14 together. The fifth adhesive layer 13 can be optically clear adhesive (OCA), and the cover plate 14 can be glass. The upper graphic in Figure 8 shows the flattened state of the display module, and the lower graphic shows the inward folded state of the display module. The labels of the components in the inward folded state are omitted. The contact positions between the hinge structure 30 and the heat sink 22 are marked in the inward-folded state of the display module. These contact positions can serve a supporting function, and include, for example, a first contact position C1, a second contact position C2, a third contact position C3, and a fourth contact position C4. The orthographic projection of the first contact position C1 on the display module can overlap with the orthographic projection of the first blind hole area 221 on the display module. The orthographic projection of the fourth contact position C4 on the display module can overlap with the orthographic projection of the second blind hole area 222 on the display module. The orthographic projections of the second contact position C2 and the third contact position C3 on the display module can overlap with the orthographic projection of the through hole area 210 on the display module. In an exemplary embodiment, any one of these contact positions can have point contact, line contact, or surface contact with the heat sink 22. The contact form between the hinge structure and the heat sink 22 can be set according to actual needs, and this disclosure does not limit this.

[0067] As shown in Figure 8, in the flattened state, the distance between the movable end 22B of the heat sink 22 and the edge of the adjacent support layer 21 in the first direction X is a first distance S1. As the bending process proceeds, the movable end 22B moves with the support layer 21. In the inward folded state, the distance between the movable end 22B and the edge of the adjacent support layer 21 in the first direction X changes to a second distance S2. The distance traveled by the movable end 22B along the first direction X during the bending process is a third distance S3. By making the movable end 22B movable, the stress accumulated in the heat sink 22 during the bending process can be released, reducing the possibility of the heat sink 22 arching.

[0068] Figure 9 is a schematic diagram showing the positional change of the movable end of the display module before and after bending in another exemplary embodiment. It illustrates the cross-sectional view along the AA direction of the display module in Figure 1 before and after outward bending. The difference between Figure 9 and Figure 8 is that the bending form is different, and the contact position between the hinge structure 30 and the heat sink 22 is the fifth contact position C5. The rest can be referred to the description of Figure 8 above, and will not be repeated here.

[0069] As shown in Figure 9, the orthographic projection of the fifth contact position C5 on the display module overlaps with the orthographic projection of the through-hole area 210 on the display module. In the flattened state, the distance between the movable end 22B of the heat sink 22 and the edge of the adjacent support layer 21 in the first direction X is a first distance S1. As the bending process proceeds, the movable end 22B moves with the support layer 21. In the outward-folded state, the distance between the movable end 22B and the edge of the adjacent support layer 21 in the first direction X changes to a fourth distance S4, and the distance traveled by the movable end 22B along the first direction X during the bending process is a fifth distance S5. In the outward-folded state, the movement distance of the movable end 22B is shorter.

[0070] This disclosure also provides a display device, including the support component described in any of the above embodiments, or the display module described in any of the above embodiments. The display device can be any product or component with display function, such as an OLED display, QLED display, LED display, projector, mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator; this disclosure is not limited thereto.

[0071] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A support component, comprising: A support layer is located on the backlight side of the screen and is connected to the screen; Includes a first cutout area that is perpendicular to the screen; The support layer is configured to bend along its own bending center line, so that the screen can switch between an unfolded state and a bent state; within the plane of the support layer, the first cutout area is located on one side of the bending center line; The heat sink includes a fixed end and a movable end. The fixed end is configured to be connected to the support layer, and the movable end passes through the first hollow area, such that one end of the fixed end and the movable end are located on the side of the support layer closer to the screen, and the other end is located on the side of the support layer away from the screen. The orthographic projection of the heat sink on the support layer and the orthographic projection of the bending center line on the support layer overlap each other, and the movable end is configured to move as the screen's state changes.

2. The support component according to claim 1, wherein, The support layer includes a through-hole area, and a plurality of through holes are provided in the through-hole area to penetrate the support layer. The orthographic projection of the bending center line on the support layer and the orthographic projection of the through-hole area on the support layer overlap each other. In the plane of the support layer, the first hollow area is located on one side of the through hole area along the first direction, the bending center line extends along the second direction, and the first direction and the second direction intersect; the orthographic projection of the heat sink on the support layer and the orthographic projection of the through hole area on the support layer overlap each other.

3. The support component according to claim 2, wherein, The support layer further includes a first blind hole area and a second blind hole area, the first blind hole area and the second blind hole area including a plurality of blind holes; the first blind hole area and the second blind hole area are respectively located on both sides of the through hole area along the first direction; Within the plane of the support layer, the first hollow area is located on the side of the first blind hole area or the second blind hole area away from the through hole area, and the orthographic projection of the heat sink on the support layer overlaps with the orthographic projections of the through hole area, the first blind hole area, and the second blind hole area on the support layer.

4. The support component according to claim 3, wherein the support layer is connected to the screen via a first adhesive layer, the first adhesive layer includes a second cutout area disposed perpendicular to the screen, and the orthographic projection of the first cutout area on the support layer and the orthographic projection of the second cutout area on the support layer overlap each other; The heat sink located on the side of the support layer away from the screen is located within the second cutout area.

5. The support component according to claim 4, wherein, The fixing end is located on the side of the support layer away from the screen, and the fixing end is connected to the surface of the support layer away from the screen through a second adhesive layer.

6. The support component according to claim 5, wherein, In a direction perpendicular to the support layer, the thickness of the heat sink located on the side of the support layer closer to the screen is greater than the thickness of the heat sink located on the side of the support layer farther from the screen.

7. The support component according to claim 4, wherein, The fixing end is located on the side of the support layer near the screen, and within the second cutout area, the fixing end is connected to the support layer through a third adhesive layer.

8. The support component according to claim 7, wherein the fixed end is connected to the screen via a fourth adhesive layer within the second hollow area.

9. The support component according to claim 4, wherein, The fixed end is located on the side of the support layer close to the screen, and the first adhesive layer includes a substrate and a first sub-adhesive layer and a second sub-adhesive layer disposed on both sides of the substrate. The first sub-adhesive layer is configured to be connected to the support layer, and the second sub-adhesive layer is configured to be connected to the screen. Within the second cutout area, a portion of the substrate of the first adhesive layer is removed, and the fixing end extends into the first adhesive layer where the substrate has been removed, and connects with the first sub-adhesive layer and the second sub-adhesive layer.

10. The support component according to claim 4, wherein, The heat sink comprises graphite material.

11. A display module, comprising: The screen and the support assembly as described in any one of claims 1 to 10, the support assembly being disposed on the backlight-side surface of the screen.

12. The display module according to claim 11, wherein, The screen includes a display substrate, a polarizer, and a cover plate arranged in sequence; the display substrate is connected to the support assembly.

13. The display module according to claim 11 further includes a hinge structure, the hinge structure being located on the side of the heat sink away from the screen and in contact with the heat sink.

14. The display module according to claim 13, wherein, The position where the hinge structure contacts the heat sink overlaps with at least one of the through-hole area, the first blind hole area, and the second blind hole area on the support assembly.

15. A display device comprising a support assembly as claimed in any one of claims 1 to 10; or comprising a display module as claimed in any one of claims 11 to 14.

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