Support Component and Display Module

Abstract

The embodiment of the present application discloses a support assembly and a display module, the display module including a flexible display panel and a support assembly; the support assembly includes a first support plate, a second support plate and a hinge assembly, the first support plate and the second support plate are rotatably connected by the hinge assembly; the support assembly also includes an auxiliary support layer arranged corresponding to the bent display part, the auxiliary support layer includes a first supporting spring piece and a second supporting spring piece arranged on the hinge assembly and rotatably connected by the hinge assembly, the first supporting spring piece is provided with a first supporting tooth, and the second supporting spring piece is provided with a second supporting tooth on the side opposite to the first supporting spring piece, a plurality of first supporting teeth and a plurality of second supporting teeth are staggered to form an accommodating space, and the bent display part is located in the accommodating space; the technical solution of the present application can prevent the external impact force from being transmitted to the flexible display panel after the display module is hit, affecting the normal display of the flexible display panel, thereby achieving the purpose of protecting the bent display part.

Description

Technical Field

[0001] This application relates to the field of display technologies, and particularly to a support component and a display module. Background Art

[0002] Folding mobile phones mainly use flexible organic light-emitting semiconductor displays (Organic Electroluminescence Display, OLED) as display screens. During use, the flexible OLED display screen will be bent, so it is impossible to use a relatively thick glass cover plate to protect the flexible OLED screen body like an LCD screen. Compared with the LCD screen, the flexible OLED screen is more vulnerable. Especially when it accidentally drops or collides during use, the flexible OLED screen is prone to failure of the display device layer under the action of external impact force, usually manifested as bright lines, black spots, and even a large area of black screen in the bending area.

[0003] Generally, the positions where such failure phenomena occur in folding mobile phones are mainly located in the bending area, that is, the reliability of the bending area is relatively weak. The main reason is that the OLED display module in the bending area needs to be bent, and a certain space needs to be reserved between the bottom side of the bending area of the OLED display module and the middle frame structure to form a clearance area to prevent the deformation of the OLED module from being restricted when it is bent. Therefore, it is impossible to directly bond the flexible OLED screen body to the mobile phone middle frame with colloid. When the folding mobile phone drops or collides, due to the deformation and vibration of some parts of the hinge structure and the middle frame structure under the action of the impact force, it will directly squeeze the OLED display module structure in the bending area, resulting in the failure of the flexible OLED screen body in the bending area.

[0004] Therefore, it is urgent to reasonably design the OLED module structure to improve the impact resistance of the screen body itself when it drops. Summary of the Invention

[0005] The embodiments of this application provide a support component and a display module, which can prevent the external impact force from being transmitted to the hinge component of the display module after the display module is impacted, thereby affecting the normal display of the flexible display panel, and achieving the purpose of protecting the bent display part.

[0006] The embodiments of this application provide a display module, including:

[0007] A flexible display panel, including a first flat display part, a second flat display part, and a bent display part located between the first flat display part and the second flat display part;

[0008] The support assembly is disposed on the non-light-emitting surface side of the flexible display panel. The support assembly includes a first support plate, a second support plate, and a hinge assembly. The first support plate is rotatably connected to one side of the hinge assembly about a central axis, and the second support plate is rotatably connected to the other side of the hinge assembly about the central axis. The first support plate and the second support plate are rotatably connected through the hinge assembly. The first planar display portion is disposed on the first support plate, and the second planar display portion is disposed on the second support plate;

[0009] Wherein, the support assembly includes an auxiliary support layer disposed on the side of the hinge assembly close to the flexible display panel. The auxiliary support layer includes a first support elastic piece and a second support elastic piece disposed on the hinge assembly. The first support elastic piece and the second support elastic piece are rotatably connected through the hinge assembly. A plurality of first support teeth are disposed on the side of the first support elastic piece close to the second support elastic piece, and a plurality of second support teeth are disposed on the side of the second support elastic piece close to the first support elastic piece. The plurality of first support teeth and the plurality of second support teeth are arranged in an alternating manner;

[0010] The display module includes a flat first state and a folded second state. In the second state, the bent display portion is in a bent state. The display module includes an accommodation space between the first support elastic piece and the second support elastic piece, and the bent display portion is located in the accommodation space.

[0011] Optionally, the bent display portion includes a first sub-display portion and a second sub-display portion respectively located on both sides of the central axis. The first sub-display portion is disposed corresponding to the first support elastic piece, and the second sub-display portion is disposed corresponding to the second support elastic piece. In the second state, the first sub-display portion overlaps at least a part of the second support teeth, and the second sub-display portion is overlapped and arranged with at least a part of the first support teeth.

[0012] Optionally, the hinge assembly further includes a first floating plate rotatably connected to one side edge of the hinge, and a second floating plate rotatably connected to the other side edge of the hinge. The first floating plate is slidably connected to the first support plate, and the second floating plate is slidably connected to the second support plate. The first floating plate and the second floating plate are respectively disposed on both sides of the central axis;

[0013] Wherein, one side edge of the first support elastic piece close to the first support plate is connected to the first floating plate, and one side of the second support elastic piece close to the second support plate is connected to the second floating plate.

[0014] Optionally, in the second state, the first support teeth are bent and abutted against the second floating plate, and the second support teeth are bent and abutted against the first floating plate.

[0015] Optionally, the first support elastic sheet and / or the second support elastic sheet include a first surface and a second surface arranged in parallel to each other. The first support elastic sheet and / or the second support elastic sheet include at least one connecting portion, and the connecting portion is arranged between the first surface and the second surface and connects the first surface and the second surface. The connecting portion has a first included angle with the first surface and a second included angle with the second surface, so that the first support elastic sheet and / or the second support elastic sheet are arranged in a staggered concave-convex structure in a first direction, and the first direction is perpendicular to the central axis.

[0016] Optionally, the first support elastic sheet and / or the second support elastic sheet include at least two first horizontal portions flush with the first surface and at least one second horizontal portion flush with the second surface. In the first direction, the first horizontal portions and the second horizontal portions are arranged in a staggered manner, and the first horizontal portions and the second horizontal portions are connected by the connecting portion.

[0017] Optionally, in the first direction, the widths of the first horizontal portion and the second horizontal portion are equal, and the width of the first horizontal portion is less than the length of the first support tooth or the second support tooth.

[0018] Optionally, in the first direction, the ratio of the width of the first horizontal portion to the width of the first support elastic sheet is 0.2 to 0.25, and the ratio of the width of the second horizontal portion to the width of the second support elastic sheet is 0.2 to 0.25.

[0019] Optionally, the first horizontal portion, the second horizontal portion and the connecting portion have the same thickness, and the ratio of the thickness of the first horizontal portion to the distance between the first surface and the second surface is 0.3 to 0.5.

[0020] Optionally, in the first state, the first support tooth and the second support tooth are engaged, and the projection of the auxiliary support layer in the direction perpendicular to the flexible display panel covers the hinge.

[0021] Optionally, in the direction from the first support elastic sheet to the second support elastic sheet, the width of the first support tooth gradually decreases;

[0022] In the direction from the second support elastic sheet to the first support elastic sheet, the width of the second support tooth gradually decreases.

[0023] Optionally, in the direction perpendicular to the flexible display panel, the projections of the first support tooth and the second support tooth each include one of a trapezoid, a triangle or an arc.

[0024] Optionally, in the first state, the edges of the plurality of first support teeth and the edges of the plurality of second support teeth are seamlessly spliced, and the plurality of first support teeth and the plurality of second support teeth are alternately arranged in the direction along the central axis.

[0025] Optionally, the flexible display panel includes a display function layer and a stress-reducing support layer arranged in a stacked manner. The stress-reducing support layer is disposed on the side of the display function layer facing the support assembly. The stress-reducing support layer includes a bent portion corresponding to the hinge assembly and two non-bent portions located on both sides of the bent portion and corresponding to the first support plate and the second support plate.

[0026] The bent portion includes two first sub-portions and a second sub-portion located between the two first sub-portions. The second sub-portion is disposed corresponding to the central axis. A plurality of through stress-reducing holes are provided on the second sub-portion, and a plurality of stress-reducing blind holes are provided on the first sub-portion.

[0027] Wherein, the second sub-portion at least covers the first support teeth and the second support teeth, and the orthographic projection of the bent portion on the display function layer is located within the orthographic projection of the auxiliary support layer on the display function layer.

[0028] The present application further provides a support assembly, including:

[0029] A first support plate;

[0030] A second support plate;

[0031] A hinge assembly, one side of which is rotatably connected to the first support plate around a central axis, and the other side of which is rotatably connected to the second support plate around the central axis. The first support plate and the second support plate are rotatably connected through the hinge assembly.

[0032] Wherein, the support assembly further includes an auxiliary support layer. The auxiliary support layer includes a first support spring piece and a second support spring piece disposed on the hinge assembly. The first support spring piece and the second support spring piece are rotatably connected through the hinge assembly. A plurality of first support teeth are provided on the side of the first support spring piece close to the second support spring piece, and a plurality of second support teeth are provided on the side of the second support spring piece close to the first support spring piece.

[0033] When the first support plate and the second support plate are switched from the unfolded state to the folded state, the plurality of first support teeth and the plurality of second support teeth are staggered.

[0034] The beneficial effects of the present invention at least include:

[0035] The present application provides a support assembly for a display module, including a hinge assembly and an auxiliary support layer arranged on a side of the hinge assembly close to the flexible display panel, the auxiliary support layer including a first supporting spring sheet and a second supporting spring sheet arranged on the hinge assembly, the first supporting spring sheet and the second supporting spring sheet being rotatably connected via the hinge assembly, a plurality of first supporting teeth being provided on a side of the first supporting spring sheet close to the second supporting spring sheet, and a plurality of second supporting teeth being provided on a side of the second supporting spring sheet close to the first supporting spring sheet; the display module includes a first flat state and a second folded state, in the second state, the plurality of first supporting teeth and the plurality of second supporting teeth are staggered to form an accommodating space, and the bent display portion of the flexible display panel is located in the accommodating space, so that in the second bent state of the display module, the first supporting spring sheet and the second supporting spring sheet can absorb and store more impact potential energy through bending deformation, thereby preventing the external impact force from being transmitted to the position of the hinge assembly of the display module when the display module is hit by an external impact force, and the deformation of the hinge assembly affecting the normal display of the flexible display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments.

[0037] Figure 1 Schematic diagram of the structure of the display module provided in the embodiment of the present application;

[0038] Figure 2 This is an exploded view of a display module provided in an embodiment of the present application;

[0039] Figure 3 This is a structural diagram of a support assembly provided in an embodiment of the present application;

[0040] Figure 4 This is a structural diagram of a support assembly provided in an embodiment of the present application;

[0041] Figure 5 This is a structural schematic diagram of a support assembly during a bending process provided by an embodiment of the present application;

[0042] Figure 6 This is a partial structural diagram of a support assembly provided in an embodiment of the present application;

[0043] Figure 7 This is a partial structural diagram of a support assembly provided in an embodiment of the present application;

[0044] Figure 8 This is a schematic structural diagram of an auxiliary support layer provided in an embodiment of the present application;

[0045] Figure 9 It is a schematic structural diagram of a first support elastic sheet provided by an embodiment of the present application;

[0046] Figure 10 It is a partial schematic structural diagram of a support assembly provided by an embodiment of the present application;

[0047] Figure 11 It is a partial schematic structural diagram of a support assembly in a simulated bending state provided by an embodiment of the present application;

[0048] Figure 12a It is a schematic structural diagram of an auxiliary support layer provided by an embodiment of the present application;

[0049] Figure 12b It is a schematic structural diagram of an auxiliary support layer provided by an embodiment of the present application;

[0050] Figure 12c It is a schematic structural diagram of an auxiliary support layer provided by an embodiment of the present application;

[0051] Figure 13a It is a schematic structural diagram of a first support elastic sheet provided by an embodiment of the present application;

[0052] Figure 13b It is a schematic structural diagram of a first support elastic sheet provided by an embodiment of the present application;

[0053] Figure 14 It is a schematic structural diagram of a flexible display panel provided by an embodiment of the present application;

[0054] Figure 15 It is a schematic structural diagram of a stress-reducing support layer provided by an embodiment of the present application. Detailed implementation manners

[0055] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0056] Embodiments of the present application provide a support component and a display module. The following will be described in detail respectively. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments. In addition, in the description of the present application, the term "including" means "including but not limited to". The terms first, second, third, etc. are only used as labels and do not impose numerical requirements or establish an order. Various embodiments of the present invention may exist in the form of a range; it should be understood that the description in the form of a range is only for convenience and brevity and should not be construed as a rigid limitation on the scope of the present invention; therefore, it should be considered that the described range description has specifically disclosed all possible sub-ranges and individual values within that range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., and individual numbers within the range, such as 1, 2, 3, 4, 5, and 6, regardless of the range. In addition, whenever a numerical range is indicated herein, it means including any cited number (fraction or integer) within the indicated range.

[0057] Currently, foldable display devices mainly use flexible display screens. During use, the flexible display screen needs to be bent. Flexible OLED screens are often relatively fragile and have poor impact resistance. Especially when the user accidentally drops or collides with the mobile phone during use, the flexible screen body is prone to failure behavior of the display device layer under the action of external impact force, usually showing bright lines, black spots, and even a large area of black screen in the bending area.

[0058] Generally, the positions where such failure phenomena occur in the display device are mainly located in the bending area, that is, the reliability of the bending area is relatively weak. The main reason is that the display module in the bending area needs to be bent, and a certain space needs to be reserved between the bottom side of the bending area of the flexible display screen and the support structure. Therefore, it is impossible to directly bond the screen body to the support structure with colloid to prevent the flexible display screen body from being limited in deformation when bent.

[0059] However, when the foldable display device drops or collides, due to the hinge structure and some parts of the middle frame structure that play a bending role in the support structure being prone to deformation and vibration under the action of impact force, it will directly squeeze the module structure of the flexible screen body in the bending area, thereby causing the screen body to fail. Therefore, it is necessary to reasonably design the display module structure to improve the impact resistance of the screen body itself when it drops.

[0060] To solve the problem that the flexible screen body of the foldable display module is prone to loss of effectiveness during dropping or external force impact in the folded state, the present application provides the following technical solutions. For details, please refer to the following embodiments and the attached Figures 1 to 15 .

[0061] Embodiments of the present application provide a display module. Refer to the attachedFigures 1 to 15 As shown in the figure, it includes:

[0062] A flexible display panel 10, including a first planar display portion 101, a second planar display portion 102, and a bent display portion 103 located between the first planar display portion 101 and the second planar display portion 102;

[0063] A support assembly 20, disposed on one side of the backlight surface of the flexible display panel 10. The support assembly 20 includes a first support plate 2013, a second support plate 2014, and a hinge assembly. The first support plate 2013 is rotatably connected to one side of the hinge assembly about a central axis CL, and the second support plate 2014 is rotatably connected to the other side of the hinge assembly about the central axis CL. The first support plate 2013 and the second support plate 2014 are rotationally connected through the hinge assembly. The first planar display portion 101 is disposed on the first support plate 2013, and the second planar display portion 102 is disposed on the second support plate 2014;

[0064] Wherein, the support assembly 20 includes an auxiliary support layer 203 disposed on the side of the hinge assembly close to the flexible display panel 10. The auxiliary support layer 203 includes a first support elastic sheet 2031 and a second support elastic sheet 2032 disposed on the hinge assembly. The first support elastic sheet 2031 and the second support elastic sheet 2032 are rotationally connected through the hinge assembly. A plurality of first support teeth 2031c are disposed on the side of the first support elastic sheet 2031 close to the second support elastic sheet 2032, and a plurality of second support teeth 2032c are disposed on the side of the second support elastic sheet 2032 close to the first support elastic sheet 2031. The plurality of first support teeth 2031c and the plurality of second support teeth 2032c are arranged in an alternating manner;

[0065] Specifically, the alternating arrangement means that when the display module is in the second state, the plurality of first support teeth 2031c and the plurality of second support teeth 2032c are arranged in sequence according to the rule of first support tooth 2031c, second support tooth 2032c, first support tooth 2031c, second support tooth 2032c... in the extending direction of the central axis CL.

[0066] The display module includes a flat first state and a folded second state. In the second state, the bent display portion 103 is in a bent state (i.e., in a U shape), and the rotation directions of the first support elastic piece 2031 and the second support elastic piece 2032 are different, so that the first support elastic piece 2031 and the second support elastic piece 2032 cross at the position where the first support teeth 2031c and the second support teeth 2032c are staggered. The corresponding end portions of the first support teeth 2031c and the second support teeth 2032c remain in a straight state in the original direction, and the first support teeth 2031c and the second support teeth 2032c are slightly in an X shape in the extending direction along the central axis CL, as Figure 10 and Figure 11 shown, Figure 10 FIG. Figure 10 and FIG. Figure 11 are schematic structural diagrams of the first support teeth 2031c of the first support elastic piece 2031 and the second support teeth 2032c of the second support elastic piece 2032 being staggered and opposite to the hinge during the conversion of the display module from the first state to the second state, Figure 11 FIG. Figure 11 is a schematic diagram of some structures during the simulated bending process of the display module;

[0067] As Figure 10 shown, the display module includes an accommodation space K located between the first support elastic piece 2031 and the second support elastic piece 2032. The accommodation space K is a V-shaped space formed on the side of the auxiliary support layer 203 facing the flexible display panel 10 after a plurality of the first support teeth 2031c and a plurality of the second support teeth 2032c are staggered. This V-shaped space is used to support and accommodate the bent display portion 103 (U shape).

[0068] Specifically, as Figure 1 and Figure 2 shown, the flexible display panel 10 may include a stacked display functional layer 11 and a functional layer. The functional layer may include a heat dissipation layer or a stress reduction support layer 12 that reduces bending stress. The display functional layer 11 may include a flexible OLED display body.

[0069] Specifically, the support assembly 20 is disposed on the backlight side of the flexible display panel 10 and is used to drive the flexible display panel 10 to bend.

[0070] It should be noted that the display module includes a flat first state and a folded second state. In the second state, the bent display portion 103 is in a bent state;

[0071] In a specific embodiment, as Figure 3 shown, the support assembly 20 includes a central axis CL, and the support assembly 20 further includes:

[0072] A first middle frame housing 2011 and a second middle frame housing 2012, the first middle frame housing 2011 is integrally provided with the first support plate 2013, the second middle frame housing 2012 is integrally provided with the second support plate 2014, and both the first middle frame housing 2011 and the second middle frame housing 2012 rotate relative to the central axis CL to realize the folding and unfolding of the support assembly 20. Specifically, the first middle frame housing 2011 and the second middle frame housing 2012 rotate around the central axis CL through a hinge assembly.

[0073] Specifically, the central axis CL can be an imaginary axis or a solid axis.

[0074] The hinge assembly is arranged between the first support plate 2013 and the second support plate 2014. After the first middle frame housing 2011 and the second middle frame housing 2012 are joined together, a receiving groove 208 is formed, and the hinge assembly is located in the receiving groove 208.

[0075] As Figure 6 shown, the hinge assembly includes a hinge 210 and a first floating plate 2041 and a second floating plate 2042 that are rotatably connected to the hinge 210:

[0076] The hinge 210 includes two sets of rotating components arranged along the central axis CL, and the two rotating components are combined and fixed through a fixed housing 206;

[0077] The rotating component includes a first gear D1 and a second gear D2, the first gear D1 and the second gear D2 mesh with each other, and the first gear D1 and the second gear D2 are respectively rotatably connected to the fixed housing 206. The rotating component further includes a first rotating member 2091 and a second rotating member 2092. The first rotating member 2091 includes a first extension arm and a first gear portion M1, and the second rotating member 2092 includes a second extension arm and a second gear portion M2. The first gear portion M1 is rotatably connected to the fixed housing 206 and meshes with the first gear D1, the second gear portion M2 is rotatably connected to the fixed housing 206 and meshes with the second gear D2, and the rotation of the first rotating member 2091 drives the second rotating member 2092 to rotate synchronously;

[0078] Wherein, in this embodiment, the first floating plate 2041 and the second floating plate 2042 are respectively located on both sides of the central axis CL. The first floating plate 2041 is connected to the first extension arm of the first rotating member 2091 on the same side of the two rotating assemblies, and the two first extension arms support the first floating plate 2041; the second floating plate 2042 is connected to the second extension arm of the second rotating member 2092 on the same side of the two rotating assemblies, and the two second extension arms support the second floating plate 2042. The first floating plate 2041 and the second floating plate 2042 are rotatably connected by the hinge 210.

[0079] A first sliding member 2071 is connected to the first middle frame housing 2011. A first sliding groove LC1 is provided on the first sliding member 2071. A first sliding portion B1 is provided on the first extension arm. The first sliding portion B1 extends into the first sliding groove LC1 and slides along the extension direction of the first sliding groove LC1. The first sliding portion B1 of the first rotating member 2091 is rotatably connected to the first sliding member 2071; a second sliding member 2072 is connected to the second middle frame housing 2012. A second sliding groove LC2 is provided on the second sliding member 2072. A second sliding portion B2 is provided on the second extension arm. The second sliding portion B2 extends into the second sliding groove LC2 and slides along the extension direction of the second sliding groove LC2. The second sliding portion B2 of the second rotating member 2092 is rotatably connected to the second sliding member 2072.

[0080] While the first support plate 2013 and the second support plate 2014 rotate relative to each other, the first support plate 2013 slides and rotates relative to the first floating plate 2041, and the second support plate 2014 slides and rotates relative to the second floating plate 2042, so that the first floating plate 2041, the second floating plate 2042 and the hinge 210 form an avoidance area.

[0081] The support assembly 20 further includes an auxiliary support layer 203. The material of the auxiliary support layer 203 has certain bending properties, and specifically can be a metal or alloy member.

[0082] The auxiliary support layer 203 includes a first support spring piece 2031 and a second support spring piece 2032. The first support spring piece 2031 is disposed on the first floating plate 2041, and the second support spring piece 2032 is disposed on the second floating plate 2042. The specific setting methods include but are not limited to any one of pasting, welding, screwing, etc. In the embodiment of the present application, the support spring piece and the corresponding floating plate are partially bonded by a frame adhesive 205 (taking the first support spring piece 2031 as an example, that is, one side of the first support spring piece 2031 away from the first support tooth 2031c is partially connected to the first floating plate 2041 by the frame adhesive 205). When the first floating plate 2041 and the second floating plate 2042 rotate relative to each other, the first support spring piece 2031 and the second support spring piece 2032 rotate relative to each other around the central axis CL. When the display module is in the second state, the first support plate 2013 and the second support plate 2014 are in an overlapping state, and the first support tooth 2031c of the first support spring piece 2031 and the second support tooth 2032c of the second support spring piece 2032 are staggered, so that the first support tooth 2031c and the second support tooth 2032c form a receiving space K. The receiving space K is formed in the avoidance area, so that the bent display portion 103 is supported by the first support tooth 2031c and the second support tooth 2032c.

[0083] Further, when the display module is in the second state, the first support tooth 2031c of the first support spring piece 2031 and the second support tooth 2032c of the second support spring piece 2032 are staggered. At this time, the end portions of the first support tooth 2031c and the second support tooth 2032c can freely extend, or can abut against the floating plate in their respective directions, which is specifically related to the length of the support teeth extending beyond the central axis CL;

[0084] When the lengths of the first support tooth 2031c and the second support tooth 2032c are short, the end portions of the first support tooth 2031c and the second support tooth 2032c do not contact the corresponding floating plates and are in a free state without being stressed. When the display module is impacted, the end portion of the first support tooth 2031c abuts against the second floating plate 2042 (or the first support tooth 2031c is bent by the extrusion force), and the second support tooth 2032c abuts against the first floating plate 2041 (or the second support tooth 2032c is bent by the extrusion force);

[0085] When the lengths of the first support tooth 2031c and the second support tooth 2032c are long, due to the limited avoidance space formed, the end portion of the first support tooth 2031c abuts against the second floating plate 2042 (or the first support tooth 2031c is bent by the extrusion force), and the second support tooth 2032c abuts against the first floating plate 2041 (or the second support tooth 2032c is bent by the extrusion force), and they are always in a stressed and bent state;

[0086] In both of the above two states, the first supporting tooth 2031c and the second supporting tooth 2032c can form a receiving space K, and the receiving space K is formed in the avoidance area, so that the bent display part 103 is supported by the first supporting tooth 2031c and the second supporting tooth 2032c. Further, when the first supporting tooth 2031c and the second supporting tooth 2032c are in a bent state, the elastic sheet has resilience and can absorb and store more impact potential energy, avoiding the external impact force being transmitted to the hinge 210 of the display module after the display module is impacted and then transmitted to the bent display part 103, which affects the normal display of the flexible display panel.

[0087] Specifically, the plurality of the first supporting teeth 2031c and the plurality of the second supporting teeth 2032c are arranged in an interleaved manner, which means that in the second state, in the extending direction of the central axis CL, the first supporting tooth 2031c and the second supporting tooth 2032c cross each other;

[0088] Specifically, the plurality of the first supporting teeth 2031c and the first supporting elastic sheet 2031 are of an integrated structure and made of the same material, and the plurality of the second supporting teeth 2032c and the second supporting elastic sheet 2032 are of an integrated structure and made of the same material. Both the first supporting elastic sheet 2031 and the second supporting elastic sheet 2032 can be comb-shaped;

[0089] Specifically, in the direction perpendicular to the flexible display panel 10, the projections of the first supporting tooth 2031c and the second supporting tooth 2032c both include a trapezoid ( Figure 9 ), a rectangle ( Figure 12c ), a triangle ( Figure 12b ) or an arc ( Figure 12a ).

[0090] It can be understood that the support component 20 of the display module in this application includes a hinge component, and an auxiliary support layer 203 disposed on the side of the hinge component close to the flexible display panel 10. The auxiliary support layer 203 includes a first support elastic sheet 2031 and a second support elastic sheet 2032 disposed on the hinge component. The first support elastic sheet 2031 and the second support elastic sheet 2032 are rotationally connected through the hinge component. A plurality of first support teeth 2031c are disposed on the side of the first support elastic sheet 2031 close to the second support elastic sheet 2032, and a plurality of second support teeth 2032c are disposed on the side of the second support elastic sheet 2032 close to the first support elastic sheet 2031; the display module includes a flat first state and a folded second state. In the second state, a plurality of the first support teeth 2031c and a plurality of the second support teeth 2032c are staggered and bent to form an accommodating space K, and the bent display portion 103 is located in the accommodating space K. When the display module is in the bent second state, by using the characteristics that the first support elastic sheet 2031 and the second support elastic sheet 2032 are easy to bend and deform, more impact potential energy can be absorbed and stored, so as to prevent the external impact force from being transmitted to the position of the hinge component of the display module after the display module is impacted by the external impact force, and the deformation of the hinge component affects the normal display of the flexible display panel.

[0091] In one embodiment, as Figure 1 and Figure 11 shown, the bent display portion 103 includes a first sub-display portion 1031 and a second sub-display portion 1032 respectively located on both sides of the central axis CL. The first sub-display portion 1031 corresponds to the first support elastic sheet 2031, and the second sub-display portion 1032 corresponds to the second support elastic sheet 2032. In the second state, the first sub-display portion 1031 overlaps with at least part of the second support teeth 2032c, and the second sub-display portion 1032 overlaps with at least part of the first support teeth 2031c.

[0092] Specifically, the boundary between the first sub-display portion 1031 and the second sub-display portion 1032 is based on the central axis CL. The first support elastic sheet 2031 corresponds to the first sub-display portion 1031, and at least part of the first support teeth 2031c of the first support elastic sheet 2031 overlaps with the second sub-display portion 1032. The second support elastic sheet 2032 corresponds to the second sub-display portion 1032, and at least part of the second support teeth 2032c of the second support elastic sheet 2032 overlaps with the first sub-display portion 1031. When the display module is in the second state, the surrounding structure formed by the first support teeth 2031c and the second support teeth 2032c (i.e., similar to Figure 10 and Figure 11As shown, the first support tooth 2031c and the second support tooth 2032c form an interleaved structure similar to a multi-tooth gripper, which is more stable, and thus the support effect on the bent display portion 103 is better.

[0093] Furthermore, the first support tooth 2031c and the second support tooth 2032c have the same shape and size. In the first state and the second state of the display module, in the direction along the central axis CL, the first support elastic sheet 2031 and the second support elastic sheet 2032 are symmetric about the central axis CL.

[0094] It can be understood that in the second state, by arranging the first sub-display portion 1031 to overlap at least part of the second support tooth 2032c, and the second sub-display portion 1032 to overlap at least part of the first support tooth 2031c, the formed accommodation space K is more matched with the bent display portion 103 in the bent state, and the effect of the first support tooth 2031c and the second support tooth 2032c in dispersing the impact force is more uniform.

[0095] In an embodiment, as Figure 3 、 Figure 4 、 Figure 6 and Figure 7 shown, the hinge assembly further includes a first floating plate 2041 rotatably connected to one side edge of the hinge 210, a second floating plate 2042 rotatably connected to the other side edge of the hinge 210. The first floating plate 2041 is slidably connected to the first support plate 2013, the second floating plate 2042 is slidably connected to the second support plate 2014, and the first floating plate 2041 and the second floating plate 2042 are respectively arranged on both sides of the central axis CL;

[0096] Wherein, one side edge of the first support elastic sheet 2031 close to the first support plate 2013 is connected to the first floating plate 2041, and one side of the second support elastic sheet 2032 close to the second support plate 2014 is connected to the second floating plate 2042.

[0097] Specifically, the first floating plate 2041 and the hinge 210 are rotatably connected through a first rotating member 2091. The first rotating member 2091 is fixedly connected to the first floating plate 2041, and the first rotating member 2091 and the hinge 210 are rotatably connected by a gear meshing with a gear. The second floating plate 2042 and the hinge 210 are rotatably connected through a second rotating member 2092. The second rotating member 2092 is fixedly connected to the second floating plate 2042, and the second rotating member 2092 and the hinge 210 are rotatably connected by a gear meshing with a gear;

[0098] A slider is also fixedly provided on the first rotating member 2091, and a slider is also fixedly provided on the second rotating member 2092. The first floating plate 2041 and the first middle frame housing 2011 are slidably connected through a first sliding member 2071. A chute is provided on the first sliding member 2071, and the slider on the first rotating member 2091 slides correspondingly in the chute on the first sliding member 2071. The second floating plate 2042 and the second middle frame housing 2012 are slidably connected through a second sliding member 2072. A chute is provided on the second sliding member 2072, and the slider on the second rotating member 2092 slides correspondingly in the chute on the second sliding member 2072;

[0099] Specifically, one side of the first support spring piece 2031 close to the first support plate 2013 is adhered to the position on the plate surface of the first floating plate 2041 close to the first support plate 2013 through a frame adhesive 205. One side of the second support spring piece 2032 close to the second support plate 2014 is adhered to the position on the plate surface of the second floating plate 2042 close to the second support plate 2014 through a frame adhesive 205, and at the same time, the first support teeth 2031c and the second support teeth 2032c are arranged in an interleaved manner.

[0100] In an embodiment, the structures of the first support teeth 2031c and the second support teeth 2032c are the same, and a plurality of the first support teeth 2031c and a plurality of the second support teeth 2032c are arranged at intervals in the direction along the central axis.

[0101] Specifically, the same structure means that the first support teeth 2031c and the second support teeth 2032c are arranged symmetrically in an interleaved manner with respect to the central axis CL. From a top view angle, a plurality of the first support teeth 2031c and a plurality of the second support teeth 2032c of the auxiliary support layer 203 can achieve seamless splicing.

[0102] Specifically, the first support teeth 2031c and the second support teeth 2032c can be arranged at intervals of one (as shown in Figure 8 ), or at intervals of two. The specific interval setting method is not limited;

[0103] Furthermore, the first support teeth 2031c and the second support teeth 2032c are arranged with the same density in the direction along the central axis CL. By arranging the first support teeth 2031c and the second support teeth 2032c with the same density in the direction along the central axis CL, the first support spring piece 2031 and the second support spring piece 2032 can share the impact force more evenly.

[0104] It is understandable that by arranging the plurality of first supporting teeth 2031c and the plurality of second supporting teeth 2032c at even intervals, the impact force transmitted to the bent display portion 103 after the display module is hit can be further effectively dispersed.

[0105] Based on the above embodiment, Figure 6 As shown, in the first state, the first supporting teeth 2031 c and the second supporting teeth 2032 c are engaged with each other, and the projection of the auxiliary supporting layer 203 in a direction perpendicular to the flexible display panel 10 covers the hinge 210 .

[0106] Specifically, the engagement of the first supporting teeth 2031c and the second supporting teeth 2032c means that when the display module is flattened, the first supporting teeth 2031c and the second supporting teeth 2032c can be spliced with each other, that is, the shapes of the multiple first supporting teeth 2031c and the multiple second supporting teeth 2032c are complementary, so that the first supporting spring pieces 2031 and the second supporting spring pieces 2032 can form an auxiliary supporting layer 203 with no gaps or with small gaps on the entire surface.

[0107] Specifically, in the first state, the auxiliary supporting layer 203 covers the first floating plate 2041 and the second floating plate 2042 .

[0108] It can be understood that by setting the first supporting teeth 2031c and the second supporting teeth 2032c to be engaged with each other, the auxiliary supporting layer 203 can provide a certain degree of support for the display module in the first state, thereby reducing creases. In the second state of the display module, the first supporting teeth 2031c and the second supporting teeth 2032c are intertwined and bent to embrace each other to form an accommodating space K (that is, in the direction along the central axis CL, the first supporting teeth 2031c and the second supporting teeth 2032c cross slightly in an X shape, such as Figure 11 As shown) accommodates and supports the display bending portion, and plays a buffering role through the bending elasticity of the first supporting tooth 2031c and the second supporting tooth 2032c themselves.

[0109] In one embodiment, if Figure 9 As shown, in the direction from the first supporting elastic piece 2031 to the second supporting elastic piece 2032, the width of the first supporting tooth 2031c gradually decreases;

[0110] In the direction from the second supporting elastic piece 2032 to the first supporting elastic piece 2031 , the width of the second supporting tooth 2032 c gradually decreases.

[0111] Specifically, the direction from the first support spring piece 2031 to the second support spring piece 2032 specifically refers to the direction from the connecting end to the free end of the first support tooth 2031c (parallel to the first direction F1), and the width of the first support tooth 2031c refers to the width in the direction parallel to the central axis CL.

[0112] Specifically, the direction from the second support spring piece 2032 to the first support spring piece 2031 specifically refers to the direction from the connecting end to the free end of the second support tooth 2032c (parallel to the first direction F1), and the width of the second support tooth 2032c refers to the width in the direction parallel to the central axis CL.

[0113] Specifically, in the direction from the first support spring piece 2031 to the second support spring piece 2032, the material thickness H2 of the first support tooth 2031c may also gradually decrease, and in the direction from the second support spring piece 2032 to the first support spring piece 2031, the material thickness of the second support tooth 2032c may also gradually decrease.

[0114] It can be understood that by setting the widths of the first support tooth 2031c and the second support tooth 2032c to gradually decrease, during the process of the display module switching from the first state to the second state, the compression capabilities of the first support spring piece 2031 and the second support spring piece 2032 show a gradually changing trend, and the effect of alleviating the impact force gradually increases as the impact force increases, which can further improve the impact resistance and buffering performance of the first support spring piece 2031 and the second support spring piece 2032.

[0115] Continuing with the above embodiment, in the direction perpendicular to the flexible display panel 10, the projections of the first support tooth 2031c and the second support tooth 2032c both include a trapezoid ( Figure 9 ), a triangle ( Figure 12b ), or an arc ( Figure 12a ).

[0116] Specifically, the first support tooth 2031c and the second support tooth 2032c are preferably trapezoids.

[0117] In one embodiment, as shown in Figure 13a and Figure 13b , Figure 13a or Figure 13bIt is a schematic structural diagram of the first support elastic sheet 2031 or the second support elastic sheet 2032. The first support elastic sheet 2031 and / or the second support elastic sheet 2032 include a first surface S1 and a second surface S2 that are arranged parallel to each other. The first support elastic sheet 2031 and / or the second support elastic sheet 2032 include at least one connecting portion C3. The connecting portion C3 is disposed between the first surface S1 and the second surface S2 and connects the first surface S1 and the second surface S2. The connecting portion C3 has a first included angle with the first surface S1, and the connecting portion C3 has a second included angle with the second surface S2, so that the first support elastic sheet 2031 and / or the second support elastic sheet 2032 have an alternating concave-convex structure in the first direction F1, and the first direction F1 is perpendicular to the central axis CL.

[0118] It should be noted that, in order to further improve the bending performance of the first support elastic sheet 2031 and the second support elastic sheet 2032, store more elastic potential energy, and achieve a better anti-impact and buffering effect, the technical solution of this embodiment is provided.

[0119] Specifically, the first surface S1 and the second surface S2 can be virtual surfaces in this embodiment.

[0120] In the above embodiment, as Figure 13b shown, the first support elastic sheet 2031 and / or the second support elastic sheet 2032 include at least two first horizontal portions P1 flush with the first surface S1 and at least one second horizontal portion P2 flush with the second surface S2. In the first direction F1, the first horizontal portion P1 and the second horizontal portion P2 are arranged alternately, and the first horizontal portion P1 and the second horizontal portion P2 are connected by the connecting portion C3.

[0121] It can be understood that by setting the first support elastic sheet 2031 and / or the second support elastic sheet 2032 to include the first horizontal portion and the second horizontal portion, the flexible display panel can be better supported and interference with the screen body can be avoided.

[0122] Specifically, the first support elastic sheet 2031 and the second support elastic sheet 2032 form a bending structure in the thickness direction. The first horizontal portion P1, the second horizontal portion P2, and the connecting portion C3 are all integrally formed structures, and this structure can be formed by a bending process or a stamping process;

[0123] Specifically, the first horizontal portion P1 and the second horizontal portion P2 of the first support elastic piece 2031 are parallel to each other, that is, the first horizontal portion P1 and the second horizontal portion P2 are not on the same horizontal plane. There is a connecting portion C3 between the first horizontal portion P1 and the second horizontal portion P2. The connecting portion C3 forms a first included angle with the first horizontal portion P1 and a second included angle with the second horizontal portion P2. The first included angle and the second included angle have the same degree. The range of the first included angle or the second included angle α is 90° to 120°, and specifically can be any one of 90°, 110°, and 120°, without specific limitation. The structure of the second support elastic piece 2032 is similar to that of the first support elastic piece 2031.

[0124] Specifically, on the first support elastic piece 2031, the first horizontal portion P1, the second horizontal portion P2, and the connecting portion C3 are repeatedly arranged in sequence along the first direction F1 in the order of the first horizontal portion P1, the connecting portion C3, the second horizontal portion P2, the connecting portion C3, and the first horizontal portion P1, so that the first support elastic piece 2031 forms a structure with bends, and the bending direction is parallel to the central axis CL.

[0125] Specifically, on the second support elastic piece 2032, the first horizontal portion P1, the second horizontal portion P2, and the connecting portion C3 are repeatedly arranged in sequence along the first direction F1 in the order of the first horizontal portion P1, the connecting portion C3, the second horizontal portion P2, the connecting portion C3, and the first horizontal portion P1, so that the second support elastic piece 2032 forms a structure with bends, and the bending direction is parallel to the central axis CL.

[0126] Specifically, the heights of the plurality of support portions and the degrees of the first included angle or the second included angle α formed by the plurality of support portions and the first horizontal portion P1 / second horizontal portion P2 can be different, that is, the numerical values of the vertical distances between the plurality of first horizontal portions P1 and the plurality of second horizontal portions P2 can be multiple. The plurality of first horizontal portions P1 can have multiple width values L1, and the plurality of second horizontal portions P2 can have multiple width values L2, without specific limitation. Any bending structure that can enhance the elastic potential energy of the first support elastic piece 2031 and the second support elastic piece 2032 is within the protection scope of this application. In this application, an example is given where the widths L1 of the plurality of first horizontal portions P1 are all equal, the widths L2 of the plurality of second horizontal portions P2 are all equal, and the degrees of the preset included angle α formed by the plurality of support portions and the first horizontal portion P1 / second horizontal portion P2 are all equal.

[0127] Specifically, the first support elastic piece 2031 and the second support elastic piece 2032 can be formed by bending process or stamping process to synchronously form a first horizontal part P1, a second horizontal part P2 and a connecting part C3, so that the first support elastic piece 2031 and the second support elastic piece 2032 present a bent structure in the first direction F1, thereby enabling the support elastic piece to have better elastic deformation ability and buffering performance.

[0128] Specifically, the thickness H1 of the overall structure of the first support elastic piece 2031 or the second support elastic piece 2032 is in the range of 30um - 50um, and specifically can be any one of 30um, 35um, 38um, 40um, 42um, 45um, 47um, 50um.

[0129] Continuing from the above embodiment, as Figure 13b shown, in order to ensure that the first support elastic piece 2031 and the second support elastic piece 2032 have a certain supportability in the thickness direction while being easy to bend, in the first direction F1, the ratio of the width L1 of the first horizontal part P1 to the width L of the first support elastic piece 2031 is 0.2 - 0.25, and specifically can be any one of 0.2, 0.21, 0.22, 0.23, 0.24, 0.25;

[0130] The ratio of the width L2 of the second horizontal part P2 to the width L of the first support elastic piece 2031 is 0.2 - 0.25, and specifically can be any one of 0.2, 0.21, 0.22, 0.23, 0.24, 0.25.

[0131] Continuing from the above embodiment, the first horizontal part P1, the second horizontal part P2 and the connecting part C3 have the same thickness, and the ratio of the thickness H2 of the first horizontal part P1 (the thickness of the second horizontal part is also H2, and the thickness of the connecting part is also H2) to the maximum thickness H1 of the first support elastic piece 2031 in the thickness direction is 0.3 - 0.5, and specifically can be any one of 0.3, 0.35, 0.37, 0.42, 0.46, 0.5.

[0132] Wherein, the thickness of the first horizontal part P1, the second horizontal part P2 and the connecting part C3 specifically refers to the material thickness of the first horizontal part P1, the second horizontal part P2 and the connecting part C3.

[0133] Specifically, the thickness direction refers to the direction perpendicular to the auxiliary support layer 203.

[0134] It can be understood that by setting that both the first support elastic piece 2031 and the second support elastic piece 2032 include at least two first horizontal portions P1, at least two second horizontal portions P2, and at least three connecting portions C3, and the first horizontal portion P1, the connecting portion C3, and the second horizontal portion P2 are arranged in a staggered manner in sequence along the first direction F1, the elastic deformation ability and buffering performance of the first support elastic piece 2031 and the second support elastic piece 2032 can be effectively enhanced, facilitating the absorption and storage of more impact potential energy, thereby avoiding the transmission of external impact force to the position of the bent display portion 103, achieving the purpose of protecting the flexible display screen body. At the same time, this setting method can also play a certain supporting role in the first unfolded state of the display module, reducing the creases generated after the flexible display screen body is bent multiple times, and improving the display effect of the display module.

[0135] In an embodiment, in the first direction F1, the width L1 of the first horizontal portion P1 is equal to the width L2 of the second horizontal portion P2, and the width L1 of the first horizontal portion P1 is less than the length of the first support tooth 2031c or the second support tooth 2032c.

[0136] Specifically, the length of the first support tooth 2031c refers to the length from the connecting end to the free end of the support tooth in the first direction F1.

[0137] It can be understood that setting the width L1 of the first horizontal portion P1 to be less than the length of the first support tooth 2031c or the second support tooth 2032c can further enhance the elastic deformation ability and buffering performance of the first support tooth 2031c and the second support tooth 2032c, facilitating the absorption and storage of more impact potential energy, thereby avoiding the transmission of external impact force to the position of the bent display portion 103, achieving the purpose of protecting the flexible display screen body. At the same time, this setting method can also play a certain supporting role in the first unfolded state of the display module, reducing the creases generated after the flexible display screen body is bent multiple times, and improving the display effect of the display module.

[0138] In an embodiment, as Figure 14 and Figure 15 shown, the flexible display panel 10 includes a display function layer 11 and a stress-reducing support layer 12 which are stacked, the stress-reducing support layer 12 is arranged on the side of the display function layer 11 facing the support assembly 20, and the stress-reducing support layer 12 includes a bent portion FA corresponding to the hinge assembly and two non-bent portions FN located on both sides of the bent portion FA and corresponding to the first support plate 2013 and the second support plate 2014;

[0139] The bent portion FA includes two first sub-portions A1 and a second sub-portion A2 located between the two first sub-portions A1. The second sub-portion A2 is disposed corresponding to the central axis CL, and a plurality of through stress-reducing holes 1202 are provided on the second sub-portion A2, and a plurality of stress-reducing blind holes 1201 are provided on the first sub-portion A1.

[0140] Wherein, the second sub-portion A2 at least covers the first support tooth 2031c and the second support tooth 2032c, and the orthographic projection of the bent portion FA on the display function layer 11 is located within the orthographic projection of the auxiliary support layer 203 on the display function layer 11.

[0141] Specifically, the openings of the stress-reducing blind holes 1201 face the support assembly 20;

[0142] Specifically, the stress-reducing holes 1202 are preferably strip-shaped, the length direction of the stress-reducing holes 1202 is parallel to the central axis CL, and the plurality of stress-reducing holes 1202 are staggered with each other;

[0143] Specifically, the stress-reducing blind holes 1201 can be long strip grooves, and the length direction of the long strip grooves is parallel to the central axis CL.

[0144] Specifically, the area and shape of the stress-reducing support layer 12 are the same as those of the display function layer 11, that is, the stress-reducing support layer 12 and the display function layer 11 are overlapped.

[0145] It can be understood that by providing the stress-reducing support layer 12, when the display module is bent, the bending stress of the bent section can be dispersed, the bending stress of the display module can be relieved, and the service life of the display module can be extended. The second sub-portion A2 is provided to at least cover the first support tooth 2031c and the second support tooth 2032c to prevent the second sub-portion A2 of the stress-reducing support layer 12 from interfering with the auxiliary support layer 203 during bending and affecting the buffering effect of the auxiliary support layer 203. The orthographic projection of the bent portion FA on the display function layer 11 is located within the orthographic projection of the auxiliary support layer 203 on the display function layer 11 to ensure that the edge portion of the auxiliary support layer 203 is flush with the stress-reducing support layer 12 and improve the consistency of the overall display module.

[0146] The present application also provides a support assembly 20, including:

[0147] A first support plate 2013;

[0148] A second support plate 2014;

[0149] A hinge assembly, one side of which is rotatably connected to the first support plate 2013 about a central axis CL, and the other side of which is rotatably connected to the second support plate 2014 about the central axis CL. The first support plate 2013 and the second support plate 2014 are rotatably connected through the hinge assembly;

[0150] Wherein, the support assembly 20 further includes an auxiliary support layer 203. The auxiliary support layer 203 includes a first support spring piece 2031 and a second support spring piece 2032 disposed on the hinge assembly. The first support spring piece 2031 and the second support spring piece 2032 are rotatably connected through the hinge assembly. A plurality of first support teeth 2031c are disposed on a side of the first support spring piece 2031 close to the second support spring piece 2032, and a plurality of second support teeth 2032c are disposed on a side of the second support spring piece 2032 close to the first support spring piece 2031;

[0151] When the first support plate 2013 and the second support plate 2014 are switched from a flat state to a folded state, the plurality of first support teeth 2031c and the plurality of second support teeth 2032c are arranged in an interleaved manner.

[0152] Specifically, for the specific structure, material, properties and connection relationship of the support assembly 20, reference can be made to the above embodiments, and details are not described herein.

[0153] In summary, it can be understood from the present application that the support assembly 20 of the display module provided in the present application includes a hinge assembly, and an auxiliary support layer 203 disposed on a side of the hinge assembly close to the flexible display panel 10. The auxiliary support layer 203 includes a first support spring piece 2031 and a second support spring piece 2032 disposed on the hinge assembly. The first support spring piece 2031 and the second support spring piece 2032 are rotatably connected through the hinge assembly. A plurality of first support teeth 2031c are disposed on a side of the first support spring piece 2031 close to the second support spring piece 2032, and a plurality of second support teeth 2032c are disposed on a side of the second support spring piece 2032 close to the first support spring piece 2031. The display module includes a flat first state and a folded second state. In the second state, the plurality of first support teeth 2031c and the plurality of second support teeth 2032c are arranged in an interleaved manner and bent to surround to form a receiving space K. The bent display portion 103 is located in the receiving space K, so that when the display module is in the bent second state, by utilizing the characteristics that the first support spring piece 2031 and the second support spring piece 2032 are easily bent and deformed, more impact potential energy can be absorbed and stored, and after the display module is impacted by an external impact force, the external impact force is prevented from being transmitted to the position of the hinge assembly of the display module, so that the hinge assembly is deformed and affects the normal display of the flexible display panel.

[0154] The above has introduced in detail a support component and a display module provided by the embodiments of the present application. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A display module, characterized in that, Comprising: A flexible display panel, including a first planar display portion, a second planar display portion, and a bent display portion located between the first planar display portion and the second planar display portion; A support assembly, disposed on a non-light-emitting surface side of the flexible display panel. The support assembly includes a first support plate, a second support plate, and a hinge assembly. The first support plate is rotatably connected to one side of the hinge assembly about a central axis, and the second support plate is rotatably connected to the other side of the hinge assembly about the central axis. The first support plate and the second support plate are rotatably connected through the hinge assembly. The first planar display portion is disposed on the first support plate, and the second planar display portion is disposed on the second support plate; Wherein, the support assembly includes an auxiliary support layer disposed on a side of the hinge assembly close to the flexible display panel. The auxiliary support layer includes a first support spring piece and a second support spring piece disposed on the hinge assembly. The first support spring piece and the second support spring piece are rotatably connected through the hinge assembly. A plurality of first support teeth are disposed on a side of the first support spring piece close to the second support spring piece, and a plurality of second support teeth are disposed on a side of the second support spring piece close to the first support spring piece. The plurality of first support teeth and the plurality of second support teeth are arranged in an interleaved manner; The display module includes a flat first state and a folded second state. In the second state, the bent display portion is in a bent state. The display module includes an accommodation space located between the first support spring piece and the second support spring piece, and the bent display portion is located within the accommodation space; The hinge assembly includes a hinge, a first floating plate rotatably connected to one side edge of the hinge, and a second floating plate rotatably connected to the other side edge of the hinge. The first floating plate is slidably connected to the first support plate, and the second floating plate is slidably connected to the second support plate. The first floating plate and the second floating plate are respectively disposed on both sides of the central axis; and in the second state, the first support teeth are bent and abutted against the second floating plate, and the second support teeth are bent and abutted against the first floating plate.

2. The display module according to claim 1, wherein The bent display portion includes a first sub-display portion and a second sub-display portion respectively located on both sides of the central axis. The first sub-display portion corresponds to the first support spring piece, and the second sub-display portion corresponds to the second support spring piece. In the second state, the first sub-display portion overlaps with at least a part of the second support teeth, and the second sub-display portion overlaps with at least a part of the first support teeth; 3. The display module according to claim 2, wherein A side edge of the first support spring piece close to the first support plate is connected to the first floating plate, and a side of the second support spring piece close to the second support plate is connected to the second floating plate.

4. The display module according to claim 2, wherein The first support elastic sheet and / or the second support elastic sheet include a first surface and a second surface arranged in parallel with each other. The first support elastic sheet and / or the second support elastic sheet include at least one connecting portion. The connecting portion is disposed between the first surface and the second surface and connects the first surface and the second surface. The connecting portion has a first included angle with the first surface and a second included angle with the second surface, so that the first support elastic sheet and / or the second support elastic sheet have an alternating concave-convex structure in a first direction, and the first direction is perpendicular to the central axis.

5. The display module according to claim 4, wherein The first support elastic sheet and / or the second support elastic sheet include at least two first horizontal portions flush with the first surface and at least one second horizontal portion flush with the second surface. In the first direction, the first horizontal portions and the second horizontal portions are arranged alternately, and the first horizontal portions and the second horizontal portions are connected by the connecting portion.

6. The display module according to claim 5, wherein In the first direction, the widths of the first horizontal portion and the second horizontal portion are equal, and the width of the first horizontal portion is less than the length of the first support tooth or the second support tooth.

7. The display module according to claim 5, wherein In the first direction, the ratio of the width of the first horizontal portion to the width of the first support elastic sheet is 0.2 to 0.25, and the ratio of the width of the second horizontal portion to the width of the second support elastic sheet is 0.2 to 0.

25.

8. The display module according to claim 5, wherein, The first horizontal portion, the second horizontal portion and the connecting portion have the same thickness, and the ratio of the thickness of the first horizontal portion to the distance between the first surface and the second surface is 0.3 to 0.

5.

9. The display module according to claim 2, wherein In the first state, the first support teeth and the second support teeth are engaged with each other, and the projection of the auxiliary support layer in the direction perpendicular to the flexible display panel covers the hinge.

10. The display module according to claim 2, wherein, In the direction from the first support elastic sheet to the second support elastic sheet, the width of the first support tooth gradually decreases; In the direction from the second support elastic sheet to the first support elastic sheet, the width of the second support tooth gradually decreases.

11. The display module according to claim 10, wherein, In the direction perpendicular to the flexible display panel, the projections of the first support tooth and the second support tooth each include one of a trapezoid, a triangle or an arc.

12. The display module according to claim 1, characterized in that, In the first state, the edges of the plurality of first support teeth and the edges of the plurality of second support teeth are seamlessly spliced, and the plurality of first support teeth and the plurality of second support teeth are alternately arranged in the direction along the central axis.

13. The display module according to claim 1, characterized in that, The flexible display panel includes a display functional layer and a stress-reducing support layer arranged in a stacked manner. The stress-reducing support layer is disposed on the side of the display functional layer facing the support assembly. The stress-reducing support layer includes a bent portion corresponding to the hinge assembly and two non-bent portions located on both sides of the bent portion and corresponding to the first support plate and the second support plate; The bent portion includes two first sub-portions and a second sub-portion located between the two first sub-portions. The second sub-portion is disposed corresponding to the central axis. A plurality of through stress-reducing holes are provided on the second sub-portion, and a plurality of stress-reducing blind holes are provided on the first sub-portion; Wherein, the second sub - part at least covers the first support tooth and the second support tooth, and the orthographic projection of the bending part on the display function layer is located within the orthographic projection of the auxiliary support layer on the display function layer.

14. A support component, characterized in that, Comprising: A first support plate; A second support plate; A hinge assembly, one side of which is rotatably connected to the first support plate about a central axis, and the other side of which is rotatably connected to the second support plate about the central axis, and the first support plate and the second support plate are rotatably connected through the hinge assembly; Wherein, the support assembly further includes an auxiliary support layer, and the auxiliary support layer includes a first support spring piece and a second support spring piece arranged on the hinge assembly. The first support spring piece and the second support spring piece are rotatably connected through the hinge assembly. A plurality of first support teeth are arranged on the side of the first support spring piece close to the second support spring piece, and a plurality of second support teeth are arranged on the side of the second support spring piece close to the first support spring piece; When the first support plate and the second support plate are switched from the unfolded state to the folded state, the plurality of first support teeth and the plurality of second support teeth are arranged in an interleaved manner; The hinge assembly includes a hinge; The hinge assembly further includes a first floating plate rotatably connected to one side edge of the hinge, and a second floating plate rotatably connected to the other side edge of the hinge. The first floating plate is slidably connected to the first support plate, and the second floating plate is slidably connected to the second support plate. The first floating plate and the second floating plate are respectively arranged on both sides of the central axis; And in the second folded state, the first support tooth is bent and abutted against the second floating plate, and the second support tooth is bent and abutted against the first floating plate.

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