CN115472094A - Supporting component and display module - Google Patents

Supporting component and display module Download PDF

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Publication number
CN115472094A
CN115472094A CN202211208517.0A CN202211208517A CN115472094A CN 115472094 A CN115472094 A CN 115472094A CN 202211208517 A CN202211208517 A CN 202211208517A CN 115472094 A CN115472094 A CN 115472094A
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China
Prior art keywords
supporting
support
elastic sheet
teeth
display
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CN202211208517.0A
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Chinese (zh)
Inventor
汪文强
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Application filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to CN202211208517.0A priority Critical patent/CN115472094A/en
Publication of CN115472094A publication Critical patent/CN115472094A/en
Priority to PCT/CN2023/075163 priority patent/WO2024066160A1/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • G09F9/335—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes being organic light emitting diodes [OLED]

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The embodiment of the application discloses a supporting component and a display module, wherein the display module comprises a flexible display panel and a supporting component; the support assembly comprises a first support plate, a second support plate and a hinge assembly, wherein the first support plate and the second support plate are rotatably connected through the hinge assembly; the supporting assembly further comprises an auxiliary supporting layer arranged corresponding to the bending display part, the auxiliary supporting layer comprises a first supporting elastic sheet and a second supporting elastic sheet which are arranged on the hinge assembly and are rotatably connected through the hinge assembly, first supporting teeth are arranged on the first supporting elastic sheet, second supporting teeth are arranged on the second supporting elastic sheet relative to the side face of the first supporting elastic sheet, a plurality of first supporting teeth and a plurality of second supporting teeth are arranged in a staggered mode to form an accommodating space, and the bending display part is located in the accommodating space; the technical scheme of this application can avoid the display module assembly to receive external impact force after the striking and transmit flexible display panel, influences flexible display panel's normal demonstration, reaches the purpose of protection display part of buckling.

Description

Supporting component and display module
Technical Field
The application relates to the technical field of display, in particular to a supporting component and a display module.
Background
The foldable mobile phone mainly adopts a flexible Organic light emitting semiconductor Display (OLED) as a Display screen, and the flexible OLED Display screen can be bent in the using process, so that a thicker glass cover plate cannot be adopted to protect the flexible OLED screen body like an LCD screen. Compared with an LCD screen, the flexible OLED screen is more fragile, and particularly when the flexible OLED screen is carelessly dropped, collided and the like in the using process, the flexible OLED screen is prone to failure of a display device layer under the action of external impact force, and generally shows that bright lines and black spots appear, and even a large-area screen blacking phenomenon appears at a bent area.
Generally, the position of the foldable mobile phone where such failure occurs is mainly located at the location of the bending area, i.e. the reliability of the location of the bending area is weak. The main reason is that the OLED display module at the bending region needs to be bent, and a certain space needs to be avoided between the bottom side of the bending region of the OLED display module and the middle frame structure to form an avoidance area, so that deformation limitation when the OLED display module is bent is prevented, and the flexible OLED screen body cannot be directly adhered to the middle frame of the mobile phone by adopting a colloid. When the folding mobile phone falls or collides, the hinge structure and the middle frame structure part deform and vibrate under the action of impact force, and the OLED display module structure in the bending area can be directly extruded, so that the flexible OLED screen body in the bending area is failed.
Therefore, it is urgently needed to improve the shock resistance of the screen body when the screen body falls through reasonably designing the structure of the OLED module.
Disclosure of Invention
The embodiment of the application provides a supporting component and display module assembly, it can avoid display module assembly to receive the striking back, and the position of display module assembly's hinge subassembly is transmitted to external impact force, and then influences flexible display panel's normal demonstration, reaches the purpose of the display part of buckling of protection.
The embodiment of the application provides a display module assembly, include:
the flexible display panel comprises a first plane display part, a second plane display part and a bending display part positioned between the first plane display part and the second plane display part;
the supporting assembly is arranged on one side of a non-luminous surface of the flexible display panel and comprises a first supporting plate, a second supporting plate and a hinge assembly, the first supporting plate is rotatably connected to one side of the hinge assembly around a central shaft, the second supporting plate is rotatably connected to the other side of the hinge assembly around the central shaft, the first supporting plate and the second supporting plate are rotatably connected through the hinge assembly, the first plane display part is arranged on the first supporting plate, and the second plane display part is arranged on the second supporting plate;
the supporting assembly comprises an auxiliary supporting layer arranged on one side, close to the flexible display panel, of the hinge assembly, the auxiliary supporting layer comprises a first supporting elastic sheet and a second supporting elastic sheet which are arranged on the hinge assembly, the first supporting elastic sheet and the second supporting elastic sheet are rotatably connected through the hinge assembly, a plurality of first supporting teeth are arranged on one side, close to the second supporting elastic sheet, of the first supporting elastic sheet, a plurality of second supporting teeth are arranged on one side, close to the first supporting elastic sheet, of the second supporting elastic sheet, and the plurality of first supporting teeth and the plurality of second supporting teeth are arranged in a staggered mode;
the display module comprises a first flat state and a second folded state, the bent display part is in a bent state in the second state, the display module comprises an accommodating space between the first supporting elastic sheet and the second supporting elastic sheet, and the bent display part is located in the accommodating space.
Optionally, the bending display portion includes a first sub display portion and a second sub display portion respectively located on two sides of the central shaft, the first sub display portion is arranged corresponding to the first supporting elastic sheet, the second sub display portion is arranged corresponding to the second supporting elastic sheet, in the second state, the first sub display portion is overlapped with at least part of the second supporting teeth, and the second sub display portion is overlapped with at least part of the first supporting teeth.
Optionally, the hinge assembly further includes a first floating plate rotatably connected to one side of the hinge, and a second floating plate rotatably connected to the other side of the hinge, the first floating plate is slidably connected to the first support plate, the second floating plate is slidably connected to the second support plate, and the first floating plate and the second floating plate are respectively disposed on two sides of the central shaft;
one side of the first supporting elastic sheet close to the first supporting plate is connected with the first floating plate, and one side of the second supporting elastic sheet close to the second supporting plate is connected with the second floating plate.
Optionally, in the second state, the first support tooth is in bending abutment with the second floating plate, and the second support tooth is in bending abutment with the first floating plate.
Optionally, the first support elastic sheet and/or the second support elastic sheet include a first surface and a second surface that are arranged in parallel, the first support elastic sheet and/or the second support elastic sheet include at least one connection portion, the connection portion is arranged between the first surface and the second surface and connected with the first surface and the second surface, the connection portion and the first surface have a first included angle, the connection portion and the second surface have a second included angle, so that the first support elastic sheet and/or the second support elastic sheet are in a staggered arrangement concave-convex structure in the first direction, and the first direction is perpendicular to the central shaft.
Optionally, the first supporting elastic sheet and/or the second supporting 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 are connected with the second horizontal portions through the connecting portions.
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 smaller than the length of the first support tooth or the second support tooth.
Optionally, in the first direction, a ratio of a width of the first horizontal portion to a width of the first supporting elastic sheet is 0.2 to 0.25, and a ratio of a width of the second horizontal portion to a width of the second supporting elastic sheet is 0.2 to 0.25.
Optionally, the first horizontal portion, the second horizontal portion and the connecting portion have the same thickness, and a ratio of the thickness of the first horizontal portion to a distance between the first surface and the second surface is 0.3 to 0.5.
Optionally, in the first state, the first support tooth and the second support tooth are engaged, and a projection of the auxiliary support layer in a direction perpendicular to the flexible display panel covers the hinge.
Optionally, in a direction from the first supporting elastic sheet to the second supporting elastic sheet, the width of the first supporting tooth is gradually reduced;
the width of the second support tooth is gradually reduced in the direction from the second support elastic sheet to the first support elastic sheet.
Optionally, in a 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.
Optionally, in the first state, edges of the plurality of first support teeth and 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 a direction along the central axis.
Optionally, the flexible display panel includes a display functional layer and a stress-reducing supporting layer, which are stacked, where the stress-reducing supporting layer is disposed on one side of the display functional layer facing the supporting assembly, and includes a bending portion corresponding to the hinge assembly and two non-bending portions located on two sides of the bending portion and corresponding to the first supporting plate and the second supporting plate;
the bending part comprises two first sub-parts and a second sub-part positioned between the two first sub-parts, the second sub-part is arranged corresponding to the central shaft, a plurality of penetrating stress reducing holes are formed in the second sub-part, and a plurality of stress reducing blind holes are formed in the first sub-part;
the second sub-portion at least covers the first supporting tooth and the second supporting tooth, and an orthogonal projection of the bending portion on the display functional layer is located in an orthogonal projection of the auxiliary supporting layer on the display functional layer.
The present application further provides a support assembly comprising:
a first support plate;
a second support plate;
a hinge assembly having one side rotatably connected to the first support plate about a central axis and the other side rotatably connected to the second support plate about the central axis, the first support plate and the second support plate being rotatably connected by the hinge assembly;
the supporting assembly further comprises an auxiliary supporting layer, the auxiliary supporting layer comprises a first supporting elastic sheet and a second supporting elastic sheet which are arranged on the hinge assembly, the first supporting elastic sheet and the second supporting elastic sheet are rotatably connected through the hinge assembly, a plurality of first supporting teeth are arranged on one side, close to the second supporting elastic sheet, of the first supporting elastic sheet, and a plurality of second supporting teeth are arranged on one side, close to the first supporting elastic sheet, of the second supporting elastic sheet;
first backup pad with the second backup pad is by the flat state when switching to fold condition, and is a plurality of first support tooth is with a plurality of the second supports the crisscross setting of tooth.
The beneficial effects of the invention at least comprise:
the supporting assembly provided with the display module comprises a hinge assembly and an auxiliary supporting layer arranged on one side, close to the flexible display panel, of the hinge assembly, wherein the auxiliary supporting layer comprises a first supporting elastic sheet and a second supporting elastic sheet which are arranged on the hinge assembly, the first supporting elastic sheet and the second supporting elastic sheet are rotatably connected through the hinge assembly, a plurality of first supporting teeth are arranged on one side, close to the second supporting elastic sheet, of the first supporting elastic sheet, and a plurality of second supporting teeth are arranged on one side, close to the first supporting elastic sheet, of the second supporting elastic sheet; the display module assembly includes the first state of flat and folding second state under the second state, it is a plurality of first support tooth is with a plurality of the second supports the crisscross setting of tooth and forms the accommodation space, flexible display panel's the display portion of buckling is located in the accommodation space for display module assembly is under the second state of buckling, and first support shell fragment and second support shell fragment can be through buckling deformation absorption and store more impact potential energy, and when avoiding display module assembly to receive the striking of external impact force, the external impact force transmits the position of display module assembly's hinge subassembly, and hinge assembly deformation influences flexible display panel's normal demonstration.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below.
Fig. 1 is a schematic structural diagram of a display module provided in an embodiment of the present application;
fig. 2 is an exploded view of a display module according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a support assembly provided in an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a support assembly provided in an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a support assembly during bending according to an embodiment of the present disclosure;
FIG. 6 is a schematic view of a portion of a support assembly according to an embodiment of the present disclosure;
FIG. 7 is a schematic diagram of a portion of a support assembly according to an embodiment of the present disclosure;
FIG. 8 is a schematic structural diagram of an auxiliary supporting layer provided in an embodiment of the present application;
fig. 9 is a schematic structural diagram of a first supporting elastic sheet according to an embodiment of the present disclosure;
FIG. 10 is a schematic view of a portion of a support assembly according to an embodiment of the present disclosure;
FIG. 11 is a schematic diagram of a portion of a support assembly configured to simulate a bending state according to an embodiment of the present disclosure;
fig. 12a is a schematic structural diagram of an auxiliary supporting layer provided in an embodiment of the present application;
fig. 12b is a schematic structural diagram of an auxiliary supporting layer provided in an embodiment of the present application;
fig. 12c is a schematic structural diagram of an auxiliary supporting layer provided in an embodiment of the present application;
fig. 13a is a schematic structural diagram of a first supporting elastic sheet according to an embodiment of the present disclosure;
fig. 13b is a schematic structural diagram of a first supporting elastic sheet according to an embodiment of the present disclosure;
fig. 14 is a schematic structural diagram of a flexible display panel provided in an embodiment of the present application;
fig. 15 is a schematic structural diagram of a stress-reducing supporting layer according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a supporting component and a display module. The following are detailed below. It should be noted that the following description of the embodiments is not intended to 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 and the like are used merely as labels, and do not impose numerical requirements or an established order. Various embodiments of the invention may exist in a range of versions; it is to be understood that the description in the form of a range is merely for convenience and brevity and should not be construed as an inflexible limitation on the scope of the invention; accordingly, the described range descriptions should be considered to have specifically disclosed all the possible sub-ranges as well as individual numerical values within that range. For example, it is contemplated that the description of a range 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., as well as individual numbers within a range of numbers, such as 1, 2, 3, 4, 5, and 6, for example, regardless of the range. In addition, whenever a numerical range is indicated herein, it is meant to include any number (fractional or integer) recited within the indicated range.
At present, a flexible display screen is mainly adopted in a foldable display device, the flexible display screen needs to be bent in the using process, and the flexible OLED screen is often fragile and poor in impact resistance. Especially, when a user carelessly falls off or collides the mobile phone in the using process, the flexible screen body is easy to have failure behaviors of the display device layer under the action of external impact force, and usually bright lines and black spots appear, and even a large-area black screen phenomenon appears at a bending area.
Generally, the display device is mainly located at the position of the bending region where such a failure occurs, i.e., the reliability of the position of the bending region is weak. The main reason is because the display module assembly in the district of buckling need buckle, need dodge certain space between the bottom side at flexible display screen district position and the bearing structure, consequently can't adopt the colloid with the screen body with the direct adhesion of bearing structure to prevent that the flexible display screen body is buckled time deformation is restricted.
However, when the foldable display device falls or collides, the hinge structure and the middle frame structure part which play a role in bending in the supporting structure are easy to deform and vibrate under the action of impact force, and then the module structure of the flexible screen body in the bending area can be directly extruded, so that the screen body fails. Therefore, need through rational design display module assembly structure, promote the shock resistance of the screen body when falling by itself.
In order to solve the problem that the flexible screen body is easily damaged and fails when the foldable display module falls down or is impacted by external force in the folding state, the application provides the following technical scheme, which is specifically referred to the following embodiment and the attached drawings 1 to 15.
The embodiment of the application provides a display module, as shown in fig. 1 to 15 with reference to the accompanying drawings, including:
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;
a support assembly 20 disposed at one side of a backlight surface of the flexible display panel 10, wherein 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 around a central axis CL, the second support plate 2014 is rotatably connected to the other side of the hinge assembly around the central axis CL, the first support plate 2013 and the second support plate 2014 are rotatably connected through the hinge assembly, the first flat display portion 101 is disposed on the first support plate 2013, and the second flat display portion 102 is disposed on the second support plate 2014;
the supporting assembly 20 includes an auxiliary supporting layer 203 disposed on one side of the hinge assembly close to the flexible display panel 10, the auxiliary supporting layer 203 includes a first supporting elastic sheet 2031 and a second supporting elastic sheet 2032 disposed on the hinge assembly, the first supporting elastic sheet 2031 and the second supporting elastic sheet 2032 are rotatably connected via the hinge assembly, one side of the first supporting elastic sheet 2031 close to the second supporting elastic sheet 2032 is provided with a plurality of first supporting teeth 2031c, one side of the second supporting elastic sheet 2032 close to the first supporting elastic sheet 2031 is provided with a plurality of second supporting teeth 2032c, and the plurality of first supporting teeth 2031c and the plurality of second supporting teeth 2032c are staggered;
specifically, the staggered arrangement means that when the display module is in the second state, the plurality of first supporting teeth 2031c and the plurality of second supporting teeth 2032c are sequentially arranged along the extending direction of the central axis CL according to the rule of the first supporting teeth 2031c, the second supporting teeth 2032c, the first supporting teeth 2031c, and the second supporting teeth 2032c \8230.
The display module comprises a first flat state and a second folded state, in the second state, the bent display portion 103 is in a bent state (i.e. in a U shape), the rotation directions of the first supporting resilient sheet 2031 and the second supporting resilient sheet 2032 are different, so that the first supporting resilient sheet 2031 and the second supporting resilient sheet 2032 intersect at a position where the first supporting tooth 2031c and the second supporting tooth 2032c intersect, the end portions corresponding to the first supporting tooth 2031c and the second supporting tooth 2032c keep an original direction straight state, the first supporting tooth 2031c and the second supporting tooth 2032c are slightly in an X shape along the extending direction of the central axis CL, as shown in fig. 10 and 11, fig. 10 is a schematic structural diagram of a structure in which the first supporting tooth 2031c of the first supporting resilient sheet 2031 and the second supporting tooth 2c of the second supporting resilient sheet 2032 are arranged alternately in the process of the display module when the display module is converted from the first state to the second state, and fig. 11 is a schematic structural diagram of a simulation display module in which a part of a bending process is a schematic diagram of a display module structure of a display module;
as shown in fig. 10, the display module includes an accommodating space K between the first supporting spring 2031 and the second supporting spring 2032, the accommodating space K is a V-shaped space formed by the auxiliary supporting layer 203 facing a side of the flexible display panel 10 after the plurality of first supporting teeth 2031c and the plurality of second supporting teeth 2032c are staggered, and the V-shaped space is used for supporting and accommodating the bending display portion 103 (U-shaped).
Specifically, as shown in fig. 1 and fig. 2, the flexible display panel 10 may include a display functional layer 11 and a functional layer stacked together, the functional layer may include a heat dissipation layer or a stress reduction support layer 12 for reducing a bending stress, and the display functional layer 11 may include a flexible OLED display panel.
Specifically, the supporting component 20 is disposed on a backlight side of the flexible display panel 10, and is used for driving the flexible display panel 10 to bend.
It should be noted that the display module includes a first flat state and a second folded state, and in the second state, the bending display portion 103 is in a bending state;
in a specific embodiment, as shown in fig. 3, the support assembly 20 includes a central axis CL, and the support assembly 20 further includes:
first center casing 2011 and second center casing 2012, first center casing 2011 with first backup pad 2013 integration sets up, second center casing 2012 with second backup pad 2014 integration sets up, first center casing 2011 with second center casing 2012 all rotates relatively center pin CL, realizes folding and the expansion of supporting component 20, first center casing 2011 with second center casing 2012 specifically realizes around center pin CL rotates through the hinge subassembly.
Specifically, the central axis CL may be an imaginary axis or a solid axis.
The hinge assembly is disposed between the first support plate 2013 and the second support plate 2014, the first middle frame housing 2011 and the second middle frame housing 2012 are spliced to form a receiving groove 208, and the hinge assembly is located in the receiving groove 208.
As shown in fig. 6, the hinge assembly includes a hinge 210 and first and second floating plates 2041 and 2042 rotatably connected to the hinge 210:
the hinge 210 includes two sets of rotating components disposed along the central axis CL, and the two rotating components are combined and fixed by a fixing housing 206;
the rotating assembly comprises a first gear D1 and a second gear D2, the first gear D1 and the second gear D2 are meshed with each other, and the first gear D1 and the second gear D2 are respectively connected with the fixed housing 206 in a rotating manner; the rotating assembly further comprises a first rotating member 2091 and a second rotating member 2092, the first rotating member 2091 comprises a first extension arm and a first gear portion M1, the second rotating member 2092 comprises a second extension arm and a second gear portion M2; the first gear portion M1 is rotatably connected to the fixed housing 206 and engaged with the first gear D1, the second gear portion M2 is rotatably connected to the fixed housing 206 and engaged with the second gear D2, and the first rotating member 2091 rotates to drive the second rotating member 2092 to rotate synchronously;
in this embodiment, the first floating plate 2041 and the second floating plate 2042 are respectively located at two sides of the central axis CL, the first floating plate 2041 is connected to the first extension arm of the first rotating member 2091 at 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 extending arm of the second rotating member 2092 on the same side of the two rotating assemblies, the two second extending arms support the second floating plate 2042, and the first floating plate 2041 and the second floating plate 2042 are rotatably connected by the hinge 210;
a first sliding member 2071 is connected to the first middle frame shell 2011, a first sliding slot LC1 is arranged on the first sliding member 2071, a first sliding portion B1 is arranged on the first extension arm, the first sliding portion B1 extends into the first sliding slot LC1 and slides along the extension direction of the first sliding slot LC1, and the first sliding portion B1 of the first rotating member 2091 is rotatably connected to the first sliding member 2071; a second sliding part 2072 is connected to the second middle frame shell 2012, a second sliding slot LC2 is arranged on the second sliding part 2072, a second sliding part B2 is arranged on the second extension arm, the second sliding part B2 extends into the second sliding slot LC2 and slides along the extension direction of the second sliding slot LC2, and the second sliding part B2 of the second rotating part 2092 is rotatably connected to the second sliding part 2072;
the first supporting plate 2013 and the second supporting plate 2014 rotate relatively, meanwhile, the first supporting plate 2013 slides and rotates relative to the first floating plate 2041, the second supporting plate 2014 slides and rotates relative to the second floating plate 2042, and therefore the first floating plate 2041, the second floating plate 2042 and the hinge 210 form an avoiding area.
The support assembly 20 further includes an auxiliary support layer 203, and the material of the auxiliary support layer 203 has a certain bending property, and may be a metal or alloy member;
the auxiliary support layer 203 includes a first support elastic sheet 2031 and a second support elastic sheet 2032, the first support elastic sheet 2031 is disposed on the first floating plate 2041, the second support elastic sheet 2032 is disposed on the second floating plate 2042, the specific setting mode includes but is not limited to any one of pasting, welding, screwing, etc., in this embodiment, the support elastic sheets and the corresponding floating plates are partially bonded by using the frame adhesive 205 (taking the first support elastic sheet 2031 as an example, that is, one side of the first support elastic sheet 2031 away from the first support tooth 2031c is partially connected with the first floating plate 2041 through the frame adhesive 205), the first floating plate 2041 and the second floating plate 2042 drive the first support elastic sheet 2031 and the second support elastic sheet 2032 to rotate relatively 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, the first support tooth 2031c of the first support elastic sheet 2031 and the second support elastic sheet 2032 are in the second state, so that the first support elastic sheet 2031c and the second support tooth 2032c are bent in the accommodating space K103 c and the accommodating space K103 c are formed by the staggered support elastic sheet 2032.
Further, when the display module is in the second state, the first supporting teeth 2031c of the first supporting spring 2031 and the second supporting teeth 2032c of the second supporting spring 2032 are staggered, and at this time, the ends of the first supporting teeth 2031c and the ends of the second supporting teeth 2032c can extend freely, or the floating plates facing them can abut against each other, specifically, the length of the supporting teeth over the central axis CL;
when the lengths of the first support teeth 2031c and the second support teeth 2032c are short, the ends of the first support teeth 2031c and the second support teeth 2032c do not contact with the corresponding floating plates, are in a free state, and are not stressed, and when the display module is impacted, the ends of the first support teeth 2031c abut against the second floating plate 2042 (or the first support teeth 2031c is bent by an extrusion force), and the second support teeth 2032c abut against the first floating plate 2041 (or the second support teeth 2032c is bent by an extrusion force);
when the lengths of the first support tooth 2031c and the second support tooth 2032c are long, the avoidance space formed by the end portions of the first support tooth 2031c and the second support tooth 2032c is limited, so that 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 an extrusion force), and the second support tooth 2032c abuts against the first floating plate 2041 (or the second support tooth 2032c is bent by an extrusion force), and is always in a stressed bent state;
above-mentioned two kinds of states homoenergetic enough realize that first support tooth 2031c and second support tooth 2032c constitute an accommodation space K, and accommodation space K is formed in dodging the district, makes the display portion 103 of buckling is supported by first support tooth 2031c and second support tooth 2032c, and further, when first support tooth 2031c and second support tooth 2032c present the bending state, the shell fragment has the resilience force, enough absorb and store more impact potential energy, avoid the display module group to receive the position that the external impact force of striking transmitted display module group's hinge 210 and then transmit the impact force to the display portion 103 of buckling, influence flexible display panel's normal demonstration.
Specifically, the plurality of first support teeth 2031c and the plurality of second support teeth 2032c are staggered, which means that in the second state, in the extending direction of the central axis CL, the first support teeth 2031c and the second support teeth 2032c intersect;
specifically, the plurality of first supporting teeth 2031c and the first supporting spring 2031 are of an integrated structure and have the same material, the plurality of second supporting teeth 2032c and the second supporting spring 2032 are of an integrated structure and have the same material, and both the first supporting spring 2031 and the second supporting spring 2032 may be of a comb shape;
specifically, in a direction perpendicular to the flexible display panel 10, the projections of the first and second supporting teeth 2031c and 2032c each include one of a trapezoid (fig. 9), a rectangle (fig. 12 c), a triangle (fig. 12 b), or a circular arc (fig. 12 a).
It can be understood that the support assembly 20 of the display module of the present application includes a hinge assembly, and an auxiliary support layer 203 disposed on one side of the hinge assembly close to the flexible display panel 10, the auxiliary support layer 203 includes a first support resilient tab 2031 and a second support resilient tab 2032 disposed on the hinge assembly, the first support resilient tab 2031 and the second support resilient tab 2032 are rotatably connected through the hinge assembly, one side of the first support resilient tab 2031 close to the second support resilient tab 2032 is provided with a plurality of first support teeth 2031c, one side of the second support resilient tab 2032 close to the first support resilient tab 2031 is provided with a plurality of second support teeth 2032c; display module assembly includes the first state of flat and folding second state under the second state, it is a plurality of first support tooth 2031c is with a plurality of second support tooth 2032c sets up in an interlaced way and the crooked holding forms accommodation space K, the display portion 103 that buckles is located in the accommodation space K for display module assembly utilizes the easy buckling deformation's of first support shell fragment 2031 and second support shell fragment 2032 characteristics under the second state of buckling, absorbs and stores more impact potential energy, avoids display module assembly to receive external impact force striking after, and external impact force transmits the position of display module assembly's hinge subassembly, makes the hinge subassembly warp the normal demonstration that influences flexible display panel.
In an embodiment, as shown in fig. 1 and 11, the bending display portion 103 includes a first sub display portion 1031 and a second sub display portion 1032 respectively located at two sides of the central axis CL, the first sub display portion 1031 is disposed corresponding to the first supporting elastic sheet 2031, the second sub display portion 1032 is disposed corresponding to the second supporting elastic sheet 2032, in the second state, the first sub display portion 1031 overlaps at least a part of the second supporting teeth 2032c, and the second sub display portion 1032 overlaps at least a part of the first supporting teeth 2031 c.
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 supporting resilient tab 2031 is disposed corresponding to the first sub-display portion 1031, at least a portion of the first supporting teeth 2031c of the first supporting resilient tab 2031 overlaps with the second sub-display portion 1032, the second supporting resilient tab 2032 is disposed corresponding to the second sub-display portion 1032, and at least a portion of the second supporting teeth 2032c of the second supporting resilient tab 2032 overlaps with the first sub-display portion 1031, when the display module is in the second state, the embracing structure formed by the first supporting teeth 2031c and the second supporting teeth 2032c (that is, similar to the staggered structure shown in fig. 10 and 11, where the first supporting teeth 2031c and the second supporting teeth 2032c form a similar grasping clip) is more stable, and thus the supporting effect on the bent display portion 103 is better.
Further, the first supporting teeth 2031c and the second supporting teeth 2032c have the same shape and size, and the first supporting elastic sheet 2031 and the second supporting elastic sheet 2032 are symmetrical about the central axis CL in the direction along the central axis CL in the first state and the second state of the display module.
It can be understood that in the second state, by disposing the first sub-display portion 1031 to overlap at least a portion of the second supporting teeth 2032c and disposing the second sub-display portion 1032 to overlap at least a portion of the first supporting teeth 2031c, the accommodating space K formed is more matched with the bent display portion 103 in the bent state, and the impact dispersing effect of the first supporting teeth 2031c and the second supporting teeth 2032c is more uniform.
In an embodiment, as shown in fig. 3, 4, 6 and 7, the hinge assembly further includes a first floating plate 2041 rotatably connected to one side of the hinge 210, and a second floating plate 2042 rotatably connected to the other side of the hinge 210, wherein 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 disposed on two sides of the central axis CL;
one side of the first supporting elastic sheet 2031 close to the first supporting plate 2013 is connected to the first floating plate 2041, and one side of the second supporting elastic sheet 2032 close to the second supporting plate 2014 is connected to the second floating plate 2042.
Specifically, the first floating plate 2041 and the hinge 210 are rotationally connected through a first rotating member 2091, the first rotating member 2091 is fixedly connected with the first floating plate 2041, the first rotating member 2091 and the hinge 210 are rotationally connected through a gear and gear engagement manner, the second floating plate 2042 and the hinge 210 are rotationally connected through a second rotating member 2092, the second rotating member 2092 is fixedly connected with the second floating plate 2042, and the second rotating member 2092 and the hinge 210 are rotationally connected through a gear and gear engagement manner;
a sliding block is further fixedly arranged on the first rotating member 2091, a sliding block is also fixedly arranged on the second rotating member 2092, the first floating plate 2041 is in sliding connection with the first middle frame shell 2011 through a first sliding member 2071, a sliding groove is formed in the first sliding member 2071, the sliding block on the first rotating member 2091 correspondingly slides in the sliding groove on the first sliding member 2071, the second floating plate 2042 is in sliding connection with the second middle frame shell 2012 through a second sliding member 2072, a sliding groove is formed in the second sliding member 2072, and the sliding block on the second rotating member 2092 correspondingly slides in the sliding groove on the second sliding member 2072;
specifically, one side of the first supporting elastic sheet 2031 close to the first supporting plate 2013 is adhered to the position, close to the first supporting plate 2013, on the surface of the first floating plate 2041 through the sealant 205, one side of the second supporting elastic sheet 2032 close to the second supporting plate 2014 is adhered to the position, close to the second supporting plate 2014, on the surface of the second floating plate 2042 through the sealant 205, and meanwhile, the first supporting teeth 2031c and the second supporting teeth 2032c are arranged in a staggered manner.
In an embodiment, the first supporting teeth 2031c and the second supporting teeth 2032c have the same structure, and a plurality of the first supporting teeth 2031c and a plurality of the second supporting teeth 2032c are spaced apart from each other in the direction along the central axis.
Specifically, the same structure means that the first supporting teeth 2031c and the second supporting teeth 2032c are symmetrically arranged in a staggered manner with respect to the central axis CL, and the plurality of first supporting teeth 2031c and the plurality of second supporting teeth 2032c of the auxiliary supporting layer 203 can be seamlessly spliced in a top view.
Specifically, the first supporting tooth 2031c and the second supporting tooth 2032c may be disposed at every other interval (as shown in fig. 8), or may be disposed at every other interval, and a specific interval disposing manner is not limited;
further, the density of the first supporting tooth 2031c is the same as that of the second supporting tooth 2032c in the direction along the central axis CL, and the impact force shared by the first supporting elastic sheet 2031 and the second supporting elastic sheet 2032 can be more uniform by setting the density of the first supporting tooth 2031c and the second supporting tooth 2032c in the direction along the central axis CL.
It can be understood 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 bending display part 103 after the display module is impacted can be further effectively dispersed.
In support of the above embodiment, as shown in fig. 6, in the first state, the first support teeth 2031c and the second support teeth 2032c are engaged, and the projection of the auxiliary support layer 203 in the direction perpendicular to the flexible display panel 10 covers the hinge 210.
Specifically, the meshing of the first supporting teeth 2031c and the second supporting teeth 2032c means that the first supporting teeth 2031c and the second supporting teeth 2032c can be spliced with each other when the display module is in a flat state, that is, the shapes of the first supporting teeth 2031c and the second supporting teeth 2032c are complementary, so that the first supporting elastic sheet 2031 and the second supporting elastic sheet 2032 can form the auxiliary supporting layer 203 with no gap or a small gap on the whole surface.
Specifically, in the first state, the auxiliary supporting layer 203 covers the first floating plate 2041 and the second floating plate 2042.
It can be understood that, by providing the first supporting tooth 2031c and the second supporting tooth 2032c to engage with each other, the auxiliary supporting layer 203 can provide a certain supporting capability and reduce the folding creases when the display module is in the first state, and when the display module is in the second state, the first supporting tooth 2031c and the second supporting tooth 2032c are alternately bent and embrace to form the accommodating space K (i.e. in the direction along the central axis CL, the first supporting tooth 2031c and the second supporting tooth 2032c intersect and are slightly X-shaped, as shown in fig. 11) to accommodate and support the display bending portion, and the bending elasticity of the first supporting tooth 2031c and the second supporting tooth 2032c itself serves as a buffer.
In an embodiment, as shown in fig. 9, in a direction from the first supporting spring 2031 to the second supporting spring 2032, the width of the first supporting tooth 2031c gradually decreases;
in a direction from the second supporting spring 2032 to the first supporting spring 2031, the width of the second supporting tooth 2032c gradually decreases.
Specifically, the direction from the first supporting resilient pieces 2031 to the second supporting resilient pieces 2032 is specifically the direction from the connecting end to the free end of the first supporting tooth 2031c (parallel to the first direction F1), and the width of the first supporting tooth 2031c is the width in the direction parallel to the central axis CL.
Specifically, the direction from the second supporting resilient pieces 2032 to the first supporting resilient pieces 2031 is specifically the direction from the connecting end to the free end of the second supporting teeth 2032c (parallel to the first direction F1), and the width of the second supporting teeth 2032c is the width in the direction parallel to the central axis CL.
Specifically, the material thickness H of the first supporting teeth 2031c in the direction from the first supporting spring 2031 to the second supporting spring 2032 2 Or gradually decrease, and the thickness of the material of the second supporting teeth 2032c may also gradually decrease in the direction from the second supporting spring 2032 to the first supporting spring 2031.
It can be understood that, the width that sets up first support tooth 2031c and second support tooth 2032c reduces gradually, and the display module assembly switches to the in-process of second state by first state, and the compressive capacity of first support shell fragment 2031 and second support shell fragment 2032 is the trend of gradual change, and the effect of alleviating the impact force strengthens gradually along with the increase of impact force, can further promote the shock resistance and the shock-absorbing capacity of first support shell fragment 2031 and second support shell fragment 2032.
In support of the above embodiment, in the direction perpendicular to the flexible display panel 10, the projections of the first supporting tooth 2031c and the second supporting tooth 2032c each comprise one of a trapezoid (fig. 9), a triangle (fig. 12 b) or an arc (fig. 12 a).
Specifically, the first support tooth 2031c and the second support tooth 2032c are preferably trapezoidal.
In an embodiment, as shown in fig. 13a and 13b, fig. 13a or 13b is a schematic structural diagram of the first supporting elastic sheet 2031 or the second supporting elastic sheet 2032, the first supporting elastic sheet 2031 and/or the second supporting elastic sheet 2032 includes a first surface S1 and a second surface S2 that are arranged in parallel to each other, the first supporting elastic sheet 2031 and/or the second supporting elastic sheet 2032 includes 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, the connecting portion C3 has a second included angle with the second surface S2, so that the first supporting elastic sheet 2031 and/or the second supporting elastic sheet 2032 are staggered in a concave-convex structure in a first direction F1, and the first direction F1 is perpendicular to the central axis CL.
It should be noted that, in order to further improve the bending performance of the first supporting elastic sheet 2031 and the second supporting elastic sheet 2032, store more elastic potential energy, and achieve better impact resistance and buffering effects, the technical solution of this embodiment is provided.
Specifically, the first surface S1 and the second surface S2 may be virtual surfaces in the present embodiment.
In the above embodiment, as shown in fig. 13b, the first supporting elastic piece 2031 and/or the second supporting elastic piece 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, and in the first direction F1, the first horizontal portions P1 and the second horizontal portions P2 are alternately disposed, and the first horizontal portions P1 are connected to the second horizontal portions P2 through the connecting portion C3.
It can be understood that the first supporting elastic piece 2031 and/or the second supporting elastic piece 2032 include a first horizontal portion and a second horizontal portion to better support the flexible display panel, so as to avoid interference with the screen body.
Specifically, the first supporting elastic sheet 2031 and the second supporting elastic sheet 2032 form a bending structure in the thickness direction, and the first horizontal portion P1, the second horizontal portion P2 and the connecting portion C3 are all integrally formed structures, which can be formed by a bending process or a punch forming process;
specifically, the first horizontal portion P1 and the second horizontal portion P2 of the first supporting resilient sheet 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, a connecting portion C3 is provided 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 forms a second included angle with the second horizontal portion P2, the first included angle and the second included angle are the same in degree, the range of the first included angle or the second included angle α is 90 ° to 120 °, specifically may be any one of 90 °, 110 ° and 120 °, and is not limited specifically, and the second supporting resilient sheet 2032 has a similar structure to the first supporting resilient sheet 2031.
Specifically, on the first supporting elastic sheet 2031, the first horizontal portion P1, the second horizontal portion P2, and the connecting portion C3 are repeatedly and sequentially arranged along the first direction F1 according to the sequence 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 supporting elastic sheet 2031 is formed with a bent structure, and the bending direction of the first supporting elastic sheet 2031 is parallel to the central axis CL.
Specifically, on the second supporting elastic sheet 2032, the first horizontal portion P1, the second horizontal portion P2, and the connecting portion C3 are repeatedly and sequentially arranged along the first direction F1 according to the sequence 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 supporting elastic sheet 2032 is formed with a bent structure, and the bending direction of the bent structure is parallel to the central axis CL.
Specifically, the heights of the supporting portions and the degrees of the first or second included angles α formed by the supporting portions and the first/second horizontal portions P1, P2 may be different, that is, the vertical distances between the first horizontal portions P1 and the second horizontal portions P2 may have a plurality of values, and the first horizontal portions P1 may have a plurality of width values L 1 A plurality of the second horizontal portions P2 may have a plurality of width values L 2 Specifically, without limitation, the bending structures capable of enhancing the elastic potential energy of the first supporting elastic sheet 2031 and the second supporting elastic sheet 2032 are within the protection range of the present application, in which the widths L of the plurality of first horizontal portions P1 are used 1 All of which are equal, and the widths L of the plurality of second horizontal portions P2 2 The degrees of the preset included angles α formed by the supporting portions and the first horizontal portion P1/the second horizontal portion P2 are all equal.
Specifically, the first supporting elastic sheet 2031 and the second supporting elastic sheet 2032 may be formed by a bending process or a stamping process, and the first horizontal portion P1, the second horizontal portion P2 and the connecting portion C3 are formed synchronously, so that the first supporting elastic sheet 2031 and the second supporting elastic sheet 2032 present a bending structure in the first direction F1, and the supporting elastic sheets have better elastic deformation capability and buffering performance.
Specifically, the thickness H1 of the overall structure of the first supporting spring 2031 or the second supporting spring 2032 is within the range of 30um-50um, and specifically can be any one of 30um, 35um, 38um, 40um, 42um, 45um, 47um, 50 um.
In support of the above embodiment, as shown in fig. 13b, in order to ensure that the first supporting elastic piece 2031 and the second supporting elastic piece 2032 have certain supporting performance in the thickness direction and are easy to bend, in the first direction F1, the width L of the first horizontal portion P1 is 1 The ratio of the width L of the first supporting elastic sheet 2031 to the width L of the first supporting elastic sheet 2031 is 0.2 to 0.25, and specifically may be any one of 0.2, 0.21, 0.22, 0.23, 0.24 and 0.25;
a width L of the second horizontal part P2 2 The ratio of the width L of the first elastic supporting strip 2031 to the width L of the first elastic supporting strip 2031 is 0.2 to 0.25, and specifically may be any one of 0.2, 0.21, 0.22, 0.23, 0.24 and 0.25.
In the above embodiment, the thicknesses of the first horizontal portion P1, the second horizontal portion P2 and the connecting portion C3 are the same, and the ratio of the thickness H2 of the first horizontal portion P1 (the thickness of the second horizontal portion is also H2, and the thickness of the connecting portion is also H2) to the maximum thickness H1 of the first supporting spring 2031 in the thickness direction is 0.3 to 0.5, and specifically may be any one of 0.3, 0.35, 0.37, 0.42, 0.46 and 0.5.
The thicknesses of the first horizontal portion P1, the second horizontal portion P2, and the connecting portion C3 specifically refer to material thicknesses of the first horizontal portion P1, the second horizontal portion P2, and the connecting portion C3.
Specifically, the thickness direction refers to a direction perpendicular to the auxiliary support layer 203.
It can be understood that, by setting up first support shell fragment 2031 and second support shell fragment 2032 and all include two at least first horizontal parts P1, two at least second horizontal parts P2 and three at least connecting portion C3, first horizontal part P1, connecting portion C3 and second horizontal part P2 are along first direction F1 staggered arrangement in order, can effectively strengthen the elastic deformation ability and the shock-absorbing capacity of first support shell fragment 2031 and second support shell fragment 2032, be convenient for absorb and store more impact potential energy, thereby avoid external impact force to transmit the position of buckling display portion 103, reach the purpose of protection flexible display screen body, this mode of setting up simultaneously also can be certain support nature under the first state that the display module body is the expansion, reduce the crease that the flexible display screen body produced after buckling many times, promote the display effect of display module.
In one embodiment, the width L of the first horizontal portion P1 in the first direction F1 1 And a width L of the second horizontal part P2 2 Equal, the width L of the first horizontal part P1 1 Is smaller than the length of the first support tooth 2031c or the second support tooth 2032 c.
Specifically, the length of the first support tooth 2031c refers to the length from the connection end to the free end of the support tooth in the first direction F1.
It can be understood that the width L of the first horizontal portion P1 is set 1 Be less than first support tooth 2031c or the length of second support tooth 2032c can further strengthen first support tooth 2031c and second support tooth 2032 c's elastic deformation ability and shock-absorbing capacity, be convenient for absorb and store more impact potential energy, thereby avoid external impact force to transmit the position of buckling display part 103, reach the purpose of the flexible display screen body of protection, this mode of setting up also can be certain support nature under the first state that the display module assembly expandes simultaneously, reduce the crease that the flexible display screen body produced after buckling many times, promote the display effect of display module assembly.
In an embodiment, as shown in fig. 14 and 15, the flexible display panel 10 includes a display functional layer 11 and a stress-reducing support layer 12, which are stacked, the stress-reducing support layer 12 is disposed on a side of the display functional layer 11 facing the support component 20, and the stress-reducing support layer 12 includes a bending portion FA corresponding to the hinge assembly and two non-bending portions FN located on two sides of the bending portion FA and corresponding to the first support plate 2013 and the second support plate 2014;
the bending 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, a plurality of stress-reducing holes 1202 penetrating through the second sub-portion A2 are disposed on the second sub-portion A2, and a plurality of stress-reducing blind holes 1201 are disposed on the first sub-portion A1.
The second sub-portion A2 at least covers the first supporting tooth 2031c and the second supporting tooth 2032c, and an orthogonal projection of the bending portion FA on the display function layer 11 is located within an orthogonal projection of the auxiliary supporting layer 203 on the display function layer 11.
Specifically, the stress-reducing blind hole 1201 opens toward the support member 20;
specifically, the stress reduction holes 1202 are preferably elongated, the length direction of the stress reduction holes 1202 is parallel to the central axis CL, and the stress reduction holes 1202 are arranged in a staggered manner;
specifically, the stress relief blind hole 1201 may be an elongated slot, and a length direction of the elongated slot is parallel to the central axis CL.
Specifically, the area and shape of the stress reduction support layer 12 are the same as those of the display functional layer 11, that is, the stress reduction support layer 12 is disposed to overlap with the display functional layer 11.
It can be understood that, by providing the stress reduction supporting layer 12, when the display module is bent, the bending stress of the bending section can be dispersed, the bending stress of the display module is relieved, and the service life of the display module is prolonged, the second sub-portion A2 is set to at least cover the first supporting teeth 2031c and the second supporting teeth 2032c, so as to prevent the second sub-portion A2 of the stress reduction supporting layer 12 from interfering with the auxiliary supporting layer 203 when bent, and thus the buffering effect of the auxiliary supporting layer 203 is affected, and the orthographic projection of the bending portion FA on the display functional layer 11 is set to be located in the orthographic projection of the auxiliary supporting layer 203 on the display functional layer 11, so as to ensure that the edge portion of the auxiliary supporting layer 203 is attached to the stress reduction supporting layer 12 smoothly, and the consistency of the whole display module is improved.
The present application further provides a support assembly 20 comprising:
a first support plate 2013;
a second support plate 2014;
a hinge assembly having one side rotatably connected to the first support plate 2013 about a central axis CL and the other side rotatably connected to the second support plate 2014 about the central axis CL, the first support plate 2013 and the second support plate 2014 being rotatably connected by the hinge assembly;
the support assembly 20 further includes an auxiliary support layer 203, the auxiliary support layer 203 includes a first support spring 2031 and a second support spring 2032 disposed on the hinge assembly, the first support spring 2031 and the second support spring 2032 are rotatably connected by the hinge assembly, one side of the first support spring 2031 close to the second support spring 2032 is provided with a plurality of first support teeth 2031c, and one side of the second support spring 2032 close to the first support spring 2031 is provided with a plurality of second support teeth 2032c;
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 staggered.
Specifically, the specific structure, material, property and connection relationship of the supporting component 20 can be referred to the above embodiments, and are not described herein again.
In summary, it can be understood that the support assembly 20 of the display module includes a hinge assembly and an auxiliary support layer 203 disposed on one side of the hinge assembly close to the flexible display panel 10, where 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 rotatably connected by the hinge assembly, a plurality of first support teeth 2031c are disposed on one 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 one side of the second support elastic sheet 2032 close to the first support elastic sheet 2031; the display module assembly includes the first state of flat and folding second state under the second state, it is a plurality of first support tooth 2031c is with a plurality of second support tooth 2032c sets up and crooked encircleing forms accommodation space K, the display portion 103 that buckles is located in accommodation space K for display module assembly utilizes the easy buckling deformation's of first support shell fragment 2031 and second support shell fragment 2032 characteristics under the second state of buckling, absorbs and stores more impact potential energy, avoids display module assembly to receive the striking of external impact force after, and the position of the hinge subassembly of display module assembly is transmitted to external impact force, makes the hinge subassembly warp and influences flexible display panel's normal demonstration.
The supporting assembly and the display module provided by the embodiment of the present application are described in detail above, and a specific example is applied to explain the principle and the implementation manner of the present application, and the description of the above embodiment is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (15)

1. A display module, comprising:
the flexible display panel comprises a first plane display part, a second plane display part and a bent display part positioned between the first plane display part and the second plane display part;
the supporting assembly is arranged on one side of a non-luminous surface of the flexible display panel and comprises a first supporting plate, a second supporting plate and a hinge assembly, the first supporting plate is rotatably connected to one side of the hinge assembly around a central shaft, the second supporting plate is rotatably connected to the other side of the hinge assembly around the central shaft, the first supporting plate and the second supporting plate are rotatably connected through the hinge assembly, the first plane display part is arranged on the first supporting plate, and the second plane display part is arranged on the second supporting plate;
the supporting assembly comprises an auxiliary supporting layer arranged on one side, close to the flexible display panel, of the hinge assembly, the auxiliary supporting layer comprises a first supporting elastic sheet and a second supporting elastic sheet which are arranged on the hinge assembly, the first supporting elastic sheet and the second supporting elastic sheet are connected in a rotating mode through the hinge assembly, a plurality of first supporting teeth are arranged on one side, close to the second supporting elastic sheet, of the first supporting elastic sheet, a plurality of second supporting teeth are arranged on one side, close to the first supporting elastic sheet, of the second supporting elastic sheet, and the plurality of first supporting teeth and the plurality of second supporting teeth are arranged in a staggered mode;
the display module comprises a first flat state and a second folded state, the bent display part is in a bent state in the second state, the display module comprises an accommodating space between the first supporting elastic sheet and the second supporting elastic sheet, and the bent display part is located in the accommodating space.
2. The display module according to claim 1, wherein the bending display portion includes a first sub-display portion and a second sub-display portion respectively located at two sides of the central axis, the first sub-display portion is disposed corresponding to the first supporting elastic sheet, the second sub-display portion is disposed corresponding to the second supporting elastic sheet, in the second state, the first sub-display portion overlaps at least a portion of the second supporting teeth, and the second sub-display portion overlaps at least a portion of the first supporting teeth.
3. The display module of claim 2, wherein the hinge assembly further comprises a first floating plate rotatably connected to one side of the hinge, a second floating plate rotatably connected to the other side of the hinge, the first floating plate slidably connected to the first support plate, the second floating plate slidably connected to the second support plate, the first floating plate and the second floating plate being disposed on opposite sides of the central shaft, respectively;
one side of the first supporting elastic sheet close to the first supporting plate is connected with the first floating plate, and one side of the second supporting elastic sheet close to the second supporting plate is connected with the second floating plate.
4. The display module of claim 3, wherein in the second state, the first support teeth are in flexural abutment with the second floating plate and the second support teeth are in flexural abutment with the first floating plate.
5. The display module according to claim 2, wherein the first support elastic sheet and/or the second support elastic sheet comprises a first surface and a second surface which are arranged in parallel, the first support elastic sheet and/or the second support elastic sheet comprises at least one connecting portion, the connecting portion is arranged between the first surface and the second surface and is connected with the first surface and the second surface, a first included angle is formed between the connecting portion and the first surface, a second included angle is formed between the connecting portion and the second surface, so that the first support elastic sheet and/or the second support elastic sheet are in a staggered concave-convex structure in a first direction, and the first direction is perpendicular to the central axis.
6. The display module according to claim 5, wherein the first elastic support plate and/or the second elastic support plate comprises at least two first horizontal portions flush with the first surface and at least one second horizontal portion flush with the second surface, and the first horizontal portions and the second horizontal portions are arranged alternately in the first direction and are connected by the connecting portion.
7. The display module of claim 6, wherein the first horizontal portion and the second horizontal portion have equal widths in the first direction, and the width of the first horizontal portion is smaller than the length of the first support tooth or the second support tooth.
8. The display module as claimed in claim 6, wherein in the first direction, a ratio of a width of the first horizontal portion to a width of the first supporting elastic piece is 0.2 to 0.25, and a ratio of a width of the second horizontal portion to a width of the second supporting elastic piece is 0.2 to 0.25.
9. The display module as claimed in claim 6, wherein the first horizontal portion, the second horizontal portion and the connecting portion have the same thickness, and a ratio of the thickness of the first horizontal portion to a distance between the first surface and the second surface is 0.3 to 0.5.
10. The display module according to claim 2, wherein in the first state, the first support teeth and the second support teeth are engaged, and a projection of the auxiliary support layer in a direction perpendicular to the flexible display panel covers the hinge.
11. The display module according to claim 2, wherein the width of the first support tooth gradually decreases in a direction from the first support spring to the second support spring;
the width of the second support tooth is gradually reduced in the direction from the second support elastic sheet to the first support elastic sheet.
12. The display module of claim 11, wherein the projections of the first support tooth and the second support tooth each comprise one of a trapezoid, a triangle, or a circular arc in a direction perpendicular to the flexible display panel.
13. The display module according to claim 1, wherein in the first state, edges of the plurality of first support teeth and 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 a direction along the central axis.
14. The display module according to claim 1, wherein the flexible display panel comprises a display function layer and a stress-reducing support layer stacked on the display function layer, the stress-reducing support layer is disposed on a side of the display function layer facing the support component, and the stress-reducing support layer comprises a bending portion corresponding to the hinge component and two non-bending portions disposed on two sides of the bending portion and corresponding to the first support plate and the second support plate;
the bending part comprises two first sub parts and a second sub part positioned between the two first sub parts, the second sub part is arranged corresponding to the central shaft, a plurality of stress reducing holes penetrating through the second sub part are formed in the second sub part, and a plurality of stress reducing blind holes are formed in the first sub part;
the second sub-portion at least covers the first supporting tooth and the second supporting tooth, and an orthogonal projection of the bending portion on the display functional layer is located in an orthogonal projection of the auxiliary supporting layer on the display functional layer.
15. A support assembly, comprising:
a first support plate;
a second support plate;
a hinge assembly having one side rotatably connected to the first support plate about a central axis and the other side rotatably connected to the second support plate about the central axis, the first support plate and the second support plate being rotatably connected by the hinge assembly;
the supporting assembly further comprises an auxiliary supporting layer, the auxiliary supporting layer comprises a first supporting elastic sheet and a second supporting elastic sheet which are arranged on the hinge assembly, the first supporting elastic sheet and the second supporting elastic sheet are rotatably connected through the hinge assembly, a plurality of first supporting teeth are arranged on one side, close to the second supporting elastic sheet, of the first supporting elastic sheet, and a plurality of second supporting teeth are arranged on one side, close to the first supporting elastic sheet, of the second supporting elastic sheet;
first backup pad with the second backup pad is by the flat state when switching to fold condition, and is a plurality of first support tooth is with a plurality of the second supports the crisscross setting of tooth.
CN202211208517.0A 2022-09-30 2022-09-30 Supporting component and display module Pending CN115472094A (en)

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PCT/CN2023/075163 WO2024066160A1 (en) 2022-09-30 2023-02-09 Supporting assembly and display module

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Cited By (1)

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WO2024066160A1 (en) * 2022-09-30 2024-04-04 武汉华星光电半导体显示技术有限公司 Supporting assembly and display module

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US9785200B1 (en) * 2016-08-29 2017-10-10 Dell Products L.P. Staged snap hinge with adjustability
CN110336903A (en) * 2019-07-08 2019-10-15 Oppo（重庆）智能科技有限公司 Flexible screen support construction, flexible screen mould group and Foldable mobile terminal
CN110767098A (en) * 2019-11-28 2020-02-07 京东方科技集团股份有限公司 Foldable support, preparation method and display device
GB2610967A (en) * 2020-05-07 2023-03-22 Boe Technology Group Co Ltd Support for display module, support assembly, display module, and display device
CN115019638A (en) * 2021-11-10 2022-09-06 荣耀终端有限公司 Supporting component and terminal equipment
CN115116337A (en) * 2022-07-25 2022-09-27 昆山国显光电有限公司 Supporting assembly and display device
CN115472094A (en) * 2022-09-30 2022-12-13 武汉华星光电半导体显示技术有限公司 Supporting component and display module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024066160A1 (en) * 2022-09-30 2024-04-04 武汉华星光电半导体显示技术有限公司 Supporting assembly and display module

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