WO2022095557A1 - 可折叠支撑构件及显示装置 - Google Patents

可折叠支撑构件及显示装置 Download PDF

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Publication number
WO2022095557A1
WO2022095557A1 PCT/CN2021/114239 CN2021114239W WO2022095557A1 WO 2022095557 A1 WO2022095557 A1 WO 2022095557A1 CN 2021114239 W CN2021114239 W CN 2021114239W WO 2022095557 A1 WO2022095557 A1 WO 2022095557A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotating
shaft
support member
plate
foldable support
Prior art date
Application number
PCT/CN2021/114239
Other languages
English (en)
French (fr)
Inventor
后红琪
丁立薇
廖富
朱召吉
吴雨华
孙康龙
Original Assignee
昆山国显光电有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 昆山国显光电有限公司 filed Critical 昆山国显光电有限公司
Priority to KR1020237004236A priority Critical patent/KR20230025928A/ko
Priority to EP21888256.1A priority patent/EP4181488A4/en
Priority to JP2023511877A priority patent/JP7430844B2/ja
Publication of WO2022095557A1 publication Critical patent/WO2022095557A1/zh
Priority to US18/169,241 priority patent/US20230199091A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • H04M1/022—The hinge comprising two parallel pivoting axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
    • 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

Definitions

  • the present application relates to the technical field of display devices, and in particular, to a display device.
  • folding screen mobile phones Since the release of folding screen mobile phones, global mobile phone manufacturers have successively launched their own folding screen mobile phone products. Whether it is inner folding, outer folding, or horizontal folding and vertical folding, folding screens have become the direction that many manufacturers are competing for layout, and the mobile phone industry welcomes Here comes the new track.
  • the folding screen mobile phone needs to deal with the length change caused by the closing and opening of the rotating shaft when it is bent inside and outside. This length change may cause the display screen to be stretched or squeezed, reducing the service life of the display screen, making the The display screen fails and cannot be displayed normally.
  • Embodiments of the present application provide a foldable support member and a display device, which aim to improve the problem that the size of the foldable support member is too different in a bent state and a flattened state.
  • An embodiment of the first aspect of the present application provides a foldable support member, the foldable support member has a bent state and a flattened state, and the foldable support member includes: a rotating shaft part, including a fixed shaft extended and formed along a first direction; A rotating assembly rotatably connected to a fixed shaft; a support plate, comprising a connecting part and a flattening part that are connected to each other, the connecting part is fixed on the fixed shaft, and the flattening part can be bent and arranged around the fixed shaft relative to the connecting part;
  • the flat portion is slidably connected to the rotating assembly in the circumferential direction of the fixed shaft so that the flattening portion can slide in the circumferential direction along the rotating assembly when the foldable support member is transitioned between the folded state and the flattened state.
  • Embodiments of the second aspect of the present application provide a display device including the foldable support member of any of the above-mentioned embodiments of the first aspect.
  • the foldable support member includes a rotating shaft part and a support plate part.
  • the rotating shaft part includes a fixed shaft and a rotating assembly
  • the supporting plate part includes a connecting part and a flattening part.
  • the connecting part is fixed on the fixed shaft, and the flattening part is connected with the rotating assembly, so that the rotating assembly can drive the flattening part to rotate around the fixed shaft, that is, the rotating assembly can drive the flattening part to bend around the connecting part, so as to realize the bending and Flatten.
  • the flattening portion is slidable along the circumferential direction relative to the connecting portion, and when the foldable support member transitions between the bent state and the flattened state, the flattening portion can move in a direction close to or away from the fixed axis to avoid bending of the support plate.
  • the connecting part is stretched or squeezed, which reduces the deformation amount of the supporting plate when it is bent. Therefore, the foldable support member of the embodiment of the present application can reduce the amount of deformation when the supporting plate is bent, thereby reducing the amount of deformation when the to-be-supported part is bent, and improves the service life of the to-be-supported part.
  • FIG. 1 is a schematic structural diagram of an exploded state of a foldable member provided by an embodiment of the first aspect of the present application.
  • FIG. 2 is a partial structural schematic diagram of a foldable member provided by an embodiment of the first aspect of the present application.
  • FIG. 3 is another partial structural schematic diagram of a foldable member provided by an embodiment of the first aspect of the present application.
  • FIG. 4 is a schematic structural diagram of a flexible display screen provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a foldable member provided in an embodiment of the first aspect of the present application in an inwardly folded state.
  • FIG. 6 is a schematic structural diagram of a foldable member provided in an embodiment of the first aspect of the present application in a flattened state.
  • FIG. 7 is a schematic structural diagram of a foldable member provided in an embodiment of the first aspect of the present application in an outwardly folded state.
  • FIG. 8 is a schematic three-dimensional structural diagram of a foldable member provided in an embodiment of the first aspect of the present application in an inwardly folded state.
  • FIG. 9 is a process diagram of a foldable member transitioning from an inwardly folded state to a flattened state according to an embodiment of the first aspect of the present application.
  • FIG. 10 is a perspective view of a foldable member provided in an embodiment of the first aspect of the present application in a flattened state.
  • FIG. 11 is a process diagram of a foldable member transitioning from a flattened state to an outwardly folded state according to an embodiment of the first aspect of the present application.
  • FIG. 12 is a schematic structural diagram of a foldable member provided in an embodiment of the first aspect of the present application in an outwardly folded state.
  • FIG. 13 is another schematic structural diagram of a foldable member provided by an embodiment of the first aspect of the present application.
  • FIG. 14 is a partial enlarged schematic view of the structure at I in FIG. 13 .
  • Fig. 15 is a partial exploded view of a foldable member provided by an embodiment of the first aspect of the present application.
  • FIG. 16 is a schematic structural diagram of a foldable member in different states according to an embodiment of the first aspect of the present application.
  • FIG. 17 is an exploded view of a display device according to an embodiment of the second aspect of the present application.
  • the foldable support member 1 has a folded state and a flattened state
  • the foldable support member 1 includes: a rotating shaft part 10, including along the first direction (Z direction in FIG. 1 ) The extended fixed shaft 100 and the rotating assembly 200 rotatably connected to the fixed shaft 100; the support plate 20, including the interconnected connecting part 201 and the flattened part 202, the connecting part 201 is fixed to the fixed shaft 100, and the flattened part 202 is foldable relative to the connecting portion 201 around the fixed shaft 100; wherein, the flattening portion 202 is slidably connected to the rotating assembly 200 along the circumferential direction of the fixed shaft 100, so that the foldable support member 1 can be rotated and rotated in the bent state.
  • the flattened portion 202 can slide in the circumferential direction along the rotating assembly 200 .
  • the circumferential direction of the fixed shaft 100 refers to a circumferential direction radiating outward in a direction away from the fixed shaft 100 on a plane perpendicular to the fixed shaft starting from the center line of the fixed shaft 100 .
  • the flattening part 202 slides in the circumferential direction along the rotating assembly 200 , the flattening part 202 can be close to the fixed shaft 100 or away from the fixed shaft 100 .
  • the connecting portion 201 is fixed to the fixed shaft 100 , when the flattening portion 202 slides in the circumferential direction along the rotating assembly 200 , the flattening portion 202 can be close to the connecting portion 201 or away from the connecting portion 201 .
  • the connecting portion 201 of the foldable support member 1 is fixed to the fixed shaft 100, and the flattening portion 202 is connected to the rotating assembly 200, so that the rotating assembly 200 can drive the flattening portion 202 to rotate around the fixed shaft 100, that is, the rotating assembly
  • the 200 can drive the flattening part 202 to bend around the connecting part 201 to realize the bending and flattening of the support plate 20 .
  • the flattening portion 202 is slidably disposed along the circumferential direction relative to the connecting portion 201, and when the foldable support member 1 is transitioned between the bent state and the flattened state, the flattened portion 202 can move in a direction close to or away from the fixed shaft 100,
  • the connecting portion 201 is prevented from being stretched or squeezed when the support plate 20 is bent, and the amount of deformation of the support plate 20 when the support plate 20 is bent is reduced. Therefore, the foldable support member 1 of the embodiment of the present application can reduce the amount of deformation when the support plate 20 is bent, thereby reducing the amount of deformation when the to-be-supported part is bent, and to improve the service life of the to-be-supported part.
  • the support plate 20 uses a material with a smaller elastic modulus.
  • the support plate 20 is made of a steel plate, which can further reduce the support The amount of deformation generated when the plate 20 is bent.
  • the supporting plate 20 can be integrally formed, that is, the connecting portion 201 and the flattening portion 202 are integrally formed, so that the supporting plate 20 has a relatively smooth supporting surface and can improve the scratch damage caused by the supporting plate 20 to the supporting member.
  • the flattening portion 202 and the rotating assembly 200 are many ways to set the flattening portion 202 and the rotating assembly 200 to slide with each other.
  • the surface of the flattening portion 202 facing the rotating assembly 200 is provided with a chute.
  • Assembly 200 can be slidably arranged.
  • the foldable supporting structure further includes a sliding part 30 , and the flattened part 202 of the supporting plate 20 is connected to the rotating assembly 200 through the sliding part 30 .
  • the sliding member 30 is slidably arranged relative to the rotating assembly 200 along the circumferential direction, and the connecting portion 201 is fixed to the sliding member 30.
  • the flattening portion 202 is driven to slide relative to the rotating assembly 200 by the sliding member 30 .
  • the connecting portion 201 of the support plate 20 is bonded to the fixed shaft 100 , or the connecting portion 201 of the support plate 20 is welded to the fixed shaft 100 .
  • the fixing shaft 100 is recessed with a mounting groove 121
  • the connecting portion 201 of the support plate 20 is provided with a convex portion 201 a protruding to one side and a concave portion provided on the convex portion 201 a 201b
  • the convex portion 201a is located in the mounting groove 121.
  • the foldable support member 1 further includes a pressing block 50 located in the recess 201b, and the pressing block 50 and the recess 201b are in an interference fit.
  • the convex portion 201a is formed by bending the connecting portion 201.
  • the convex portion 201a has an outer surface for contacting and mating with the inner surface of the mounting groove 121, and the concave portion 201b also has an accommodating cavity for installing the pressing block 50 and an installation communicating with the accommodating cavity. opening, the pressing block 50 is pressed into the accommodating cavity of the concave portion 201 b from the installation opening, so as to fix the connecting portion 201 in the installation groove 121 on the fixed shaft 100 .
  • the installation groove 121 is disposed close to the middle of the fixed shaft 100 in the first direction, so that the forces on the connecting portion 201 are more balanced.
  • the mounting groove 121 includes a bottom surface 121a, two side surfaces 121b connected to the bottom surface 121a on two radial sides of the fixed shaft 100, and an opening opposite to the bottom surface 121a. In the direction from the bottom surface 121a to the opening, between the two side surfaces 121b The distance between them gradually increases.
  • the opening of the installation groove 121 is relatively large, which facilitates the installation of the protruding portion 201 a in the installation groove 121 , and can improve the assembly efficiency of the foldable support structure.
  • the convex portion 201a is adapted to the shape of the mounting groove 121, and the size of the convex portion 201a gradually increases in the direction from the bottom surface 121a of the mounting groove 121 to the opening.
  • the size of the installation opening of the protruding portion 201a is relatively large, which facilitates the pressing of the pressing block 50 into the accommodating cavity.
  • the cross section of the extrusion block 50 is wedge-shaped. It is convenient for the pressing block 50 to be pressed into the convex portion 201a.
  • the shape of the pressing block 50 is adapted to the shape of the convex portion 201a.
  • the foldable support member 1 further includes a back cover assembly 40 , which is located on the side of the rotating shaft member 10 away from the support plate member 20 .
  • the back cover assembly 40 includes: a fixing plate 41 , which is fixedly connected to the fixing shaft 100
  • the rotating plate 42 is rotatably connected to the fixed plate 41, the rotating plate 42 is slidably connected to the rotating assembly 200 along the circumferential direction, and the rotating plate 42 and the rotating assembly 200 are connected in one-to-one correspondence.
  • the support plate member 20 and the shaft member 10 can be protected by the back cover assembly 40 .
  • the back cover assembly 40 includes a fixed plate 41 and a rotating plate 42.
  • the fixed plate 41 and the rotating plate 42 are rotatably connected to each other, and the rotating plate 42 and the rotating assembly 200 can be slidably arranged in the circumferential direction, and will not affect the rotating assembly 200 around the fixed axis 100. Rotation causes interference.
  • the rotating plate 42 includes a first rotating plate 42a and a second rotating plate 42b.
  • the second rotating plate 42b is connected to the fixed plate 41 through the first rotating plate 42a.
  • a rotating plate 42a is rotatably connected to the fixed plate 41, and a second rotating plate 42b is rotatably connected to the first rotating plate 42a.
  • the rotating plate 42 includes a first rotating plate 42a and a second rotating plate 42b, and the first rotating plate 42a, the second rotating plate 42b and the third rotating plate 42 are all rotatably connected, and can expand the The rotation angle of the foldable support member 1 .
  • the first rotating plate 42a may be a curved plate, and the first rotating plate 42a is bent in a direction away from the rotating assembly 200 in a flattened state.
  • the rotation angle generated when the second rotation plate 42b is rotated from the flattened state to the bent state can be enlarged.
  • the second rotating plate 42b is slidably connected to the rotating assembly 200 in the circumferential direction.
  • the back cover assembly 40 further includes a sealing plate 43 , the sealing plate 43 is perpendicular to the rotating plate 42 , and the sealing plate 43 is disposed at one end of the rotating plate 42 in the first direction to provide protection for the rotating shaft member 10 .
  • foldable support member 1 There are many ways to bend the foldable support member 1 from the flattened state to the bent state. For example, a part of the foldable support member 1 is fixed, and the other part is rotated around the fixed axis 100 through the rotating shaft part 10, the support plate 20, etc., The foldable support member 1 is bent from the flattened state to the bent state.
  • the flexible display screen 2 includes a first fixing portion 21 and a second fixing portion. 22 and a bendable portion 23 located between the first fixing portion 21 and the second fixing portion 22 .
  • the foldable support member 1 can drive the first fixing part 21 and/or the second fixing part 22 to rotate around the bending part 23 to realize the unfolding and bending of the display device.
  • the flattening portion 202 of the support plate 20 supports the first fixing portion 21
  • the rotating plate 42 drives the rotating assembly 200 , the flattening portion 202 and the first fixing portion 21 to rotate around the bending portion 23 in sequence.
  • the rotating assemblies 200 are divided into two groups.
  • the two groups of rotating assemblies 200 are respectively disposed on both sides of the fixed shaft 100 in the second direction (X direction in FIG. 1 ).
  • the two directions intersect with the first direction; there are two flattening parts 202 , and each flattening part 202 is slidably connected to each rotating assembly 200 along the circumferential direction; on both sides in the second direction.
  • the rotating plates 42 and the rotating assemblies 200 are connected in one-to-one correspondence, when there are two sets of rotating assemblies 200, there are two rotating plates 42, and each rotating plate 42 is slidably connected to each rotating assembly 200 in the circumferential direction.
  • the two rotating plates 42 are respectively disposed on both sides of the fixed plate 41 in the second direction.
  • the two rotating assemblies 200 there are two rotating assemblies 200, two flattening portions 202 and two rotating plates 42, respectively.
  • the two sets of mutually cooperating rotating assemblies 200 , the flattening portion 202 and the rotating plate 42 can respectively drive the first fixing portion 21 and the second fixing portion 22 to rotate around the bending portion 23 , thereby The unfolding and bending of the display device is realized.
  • Examples of the folded state include an inward folded state and an outward folded state.
  • the two rotating plates 42 are located outside the two flattened portions 202 .
  • the support plate 20 is in a 180-degree plane shape.
  • the two flattened portions 202 are located outside the rotating plate 42 .
  • the foldable structure can be transformed from the inwardly folded state shown in FIG. 8 to the flattened state shown in FIG. 10 via the state shown in FIG. 9 .
  • the foldable structure can also be transformed from the flattened state shown in FIG. 10 to the outwardly folded state shown in FIG. 12 via the state shown in FIG. 11 .
  • each flattening portion 202 In the outwardly folded state and the inwardly folded state, the two flattened portions 202 are parallel to each other. Then, from the outward folded state to the inward folded state, each flattening portion 202 needs to be rotated 180 degrees.
  • the fixed shaft 100 includes a shaft portion 110, the shaft portion 110 includes two rotating shafts 111 spaced along the second direction, and the rotating shafts 111 are extended along the first direction; the two sets of rotating components 200 can be respectively It is rotatably connected to the rotating shaft 111 , and the two rotating shafts 111 of the shaft portion 110 are arranged in parallel.
  • the shaft portion 110 of the fixed shaft 100 includes two rotating shafts 111 arranged in parallel, and the two sets of rotating assemblies 200 are respectively rotatably connected to the rotating shafts 111 .
  • the two rotating shafts 111 are arranged in parallel, which can reduce the included angle between the two flattened portions 202 in the bent state.
  • the two flattening portions 202 in the outwardly folded state can be parallel to each other.
  • the fixed shaft 100 includes two sets of shaft parts 110 , the two sets of shaft parts 110 are respectively disposed at both ends of the fixed shaft 100 in the first direction, and the rotating shafts 111 are respectively connected with the rotating components 200 .
  • the shaft portions 110 are located at both ends of the fixed shaft 100 in the first direction, and the rotating shaft 111 components are also located at both ends of the fixed shaft 100, which can reduce the volume of the rotating shaft 111 component. save space.
  • by fixing the two rotating shafts 111 at both ends of the shaft 100 better support can be provided to the support plate 20 , so that the support plate 20 can be force-balanced.
  • the rotating assembly 200 includes: a rotating part 210, which is rotatably connected to the rotating shaft 111; the flattening part 202 and the rotating plate 42 are slidable along the circumferential direction is connected to the rotating part 210; the matching part 220 is connected to the rotating part 210, and the matching part 220 can be rotatably arranged, and the matching parts 220 of the two rotating components 200 connected to the same set of shaft parts 110 cooperate with each other, so as to be connected to the same set
  • the rotating parts 210 of the two rotating assemblies 200 of the shaft part 110 can rotate synchronously.
  • the rotating assembly 200 is slidably connected with the flattening part 202 and the rotating plate 42 through the rotating part 210 .
  • the matching portions 220 of the two rotating assemblies 200 connected to the same shaft portion 110 cooperate with each other, so that the rotating portions 210 can rotate synchronously, thereby driving the two flattening portions 202 to rotate synchronously.
  • the first fixing portion 21 and the second fixing portion 22 can be rotated synchronously relative to the bending portion 23, which facilitates the transition of the display device between unfolded and folded states.
  • the matching portion 220 is a synchronous conveyor belt.
  • the matching portion 220 is a gear, the gears of the two transmission assemblies connected to the same shaft portion 110 are meshed with each other, and the sizes of the gears of the two transmission assemblies connected to the same shaft portion 110 are the same.
  • the fixing shaft 100 is provided with a fixing groove 130 , and two gears meshing with each other are installed in the fixing groove 130 .
  • the fixing groove 130 can provide protection to the gear, so as to prevent other components from affecting the normal operation of the gear.
  • the fixing shaft 100 further includes a main body portion 120 , the fixing groove 130 is disposed on one side of the main body portion 120 in the first direction, and the shaft portion 110 is disposed on a side of the fixing groove 130 away from the main body portion 120 .
  • the attachment groove 121 is provided in, for example, the main body portion 120 .
  • the two fixing grooves 130 are arranged on both sides of the main body part 120 in the first direction, and the shaft part 110 is located on the side of the fixing groove 130 away from the main body part 120.
  • the size of the matching portion 220 is not limited.
  • the size of the matching portion 220 is relatively large, and the rotation axis of the matching portion 220 connected to the same rotating portion 210 overlaps with the center line of the rotating shaft 111 .
  • the size of the matching portion 220 is small, and the rotation axes of the two matching portions 220 corresponding to the same shaft portion 110 are located inside the centerlines of the two rotating shafts 111 . That is, the rotation axes of the two matching parts 220 corresponding to the same shaft part 110 are located between the center lines of the two rotation shafts 111 .
  • the rotating assembly 200 further includes a transmission part 230, one end of the transmission part 230 is connected to the rotating part 210, so that the rotating part 210 can drive the transmission part 230 to rotate, and the transmission part 230 is slidably arranged relative to the rotating part 210 along the circumferential direction, the transmission part 230 The other end is connected to the matching portion 220 .
  • the rotating part 210 drives the matching part 220 to rotate through the transmission part 230 .
  • the transmission part 230 includes: a first transmission part 231 connected to the rotating part 210 , so that the rotating part 210 can drive the first transmission part 231 to rotate, and the first transmission part 231 is slidable relative to the rotating part 210 in the circumferential direction
  • the second transmission member 232 is rotatably connected to the first transmission member 231
  • the second transmission member 232 is rotatably connected to the matching portion 220 .
  • the second transmission member 232 includes a first end 232a and a second end 232b spaced apart along the circumferential direction, the first end 232a is fixedly connected to the matching portion 220, and the second end 232b is rotatably connected to the first end 232b Transmission member 231 .
  • the first end 232 a is welded with the matching portion 220 , so that the second transmission member 232 can drive the matching portion 220 to rotate.
  • the first transmission member 231 includes a third end 231a and a fourth end 231b spaced apart along the circumferential direction, the third end 231a is rotatably connected to the second transmission member 232, and the fourth end 231b is connected to the rotating part 210 to rotate
  • the part 210 can drive the transmission part 230 to rotate through the fourth end 231b, and the fourth end 231b is slidably arranged relative to the rotating part 210 along the circumferential direction.
  • the third end 231a of the first transmission member 231 and the second end 232b of the second transmission member 232 are both sleeve structures, so that the first transmission member 231 and the second transmission member 232 can be rotated through the sleeve structure. ground connection.
  • the fourth end 231b of the first transmission member 231 is, for example, a plate shape
  • the rotating part 210 is provided with a second chute 212f
  • the fourth end 231b of the first transmission member 231 is slidably arranged in the second chute 212f along the circumferential direction , and the rotating part 210 can drive the fourth end 231b to rotate around the fixed shaft 100 through the second chute 212f.
  • the rotating part 210 can be arranged in various ways.
  • the rotating part 210 includes a rotating sleeve, and the rotating sleeve is sleeved on the rotating shaft 111 . .
  • the space in the display device is very limited, and in order to achieve a larger rotation angle of the rotating part 210, it is necessary to set multiple stages rotating pieces.
  • the rotating part 210 includes: a primary rotating member 211, which is rotatably connected to the rotating shaft 111; 211, and the secondary rotating member 212 is rotatably arranged around the rotating shaft 111 through the rotating end 212b, and the connecting end 212a is connected to the transmission part 230.
  • the rotation angle of the rotating part 210 can be increased.
  • the shaft portion 110 further includes a limiting portion 112 surrounding the peripheral side of the rotating shaft 111.
  • a first rotating groove 113 is formed between the 112 and the rotating shaft 111 , and the first-level rotating member 211 is rotatably disposed in the first rotating groove 113 .
  • the first rotating slot 113 has a first opening, and the first opening is located at one end of the first rotating slot 113 in the first direction, so that the first-stage rotating member 211 can be installed in the first rotating slot 113 through the first opening .
  • the foldable support member 1 further includes: an encapsulation member 60 for encapsulating the first opening.
  • the primary rotating member 211 includes a central axis 211a, an arc portion 211b arranged around the central axis 211a, and a bottom end 211c connecting the central axis 211a and the arcuate portion 211b, and the bottom end 211c is provided with a A matching groove 211d, the primary rotating member 211 is rotatably connected to the rotating shaft 111 through the matching groove 211d, a second rotating groove 211e is formed between the central shaft 211a and the arc portion 211b, and the rotating end 212b of the secondary rotating member 212 is rotatable It is provided in the second rotation groove 211e.
  • the primary rotating member 211 is sleeved on the rotating shaft 111 through the matching groove 211d, and the secondary rotating member 212 is disposed in the second rotating groove 211e.
  • the primary rotating member 211 is rotatably arranged around the rotating shaft 111 through the matching groove 211d, and the secondary rotating member 212 is rotatably arranged relative to the primary rotating member 211 through the second rotating groove 211e.
  • the second rotating slot 211e has a second opening, the second opening is located at one end of the second rotating member in the first direction, and the secondary rotating member 212 is installed in the second rotating slot 211e through the second opening.
  • the second opening and the first opening are located on the same side.
  • the encapsulation member 60 is also used to encapsulate at least part of the second opening.
  • a concave portion 111 a is formed around the surface of the rotating shaft 111 away from the limiting portion 112 , and the primary rotating member 211 includes a limiting block 211 f enclosing the matching groove 211 d , and the limiting block 211 f is located in the concave portion 111 a .
  • the center line of the rotating shaft 111 passes through the limiting block 211f.
  • the central axis of the arc-shaped portion 211b coincides with the central axis of the rotating shaft 111, so that the primary rotating member 211 can rotate around the rotating shaft 111 through the arc-shaped portion 211b.
  • a first stopper portion 211g is provided on the outer surface of the arc-shaped portion 211b away from the central axis 211a, and a second stopper portion 112a is provided on the limiting portion 112 to pass the first stopper portion 211g and the second stopper portion 112a.
  • the cooperation of the two stop parts 112 a defines the rotation angle of the primary rotating member 211 .
  • the first stopper portion 211g and the second stopper portion 112a cooperate with each other to provide a limit to the primary rotation member 211 to prevent the primary rotation member 211 from being separated from the first rotation groove 113 .
  • the surface of the central shaft 211a facing the arc-shaped portion 211b is provided with a snap groove 211h
  • the rotating end 212b is provided with a snap hook 212c that cooperates with the snap groove 211h, so as to define two The rotation angle of the stage rotary member 212 .
  • a limit can be provided to the secondary rotating member 212 to prevent the secondary rotating member 212 from being separated from the second rotating groove 211e.
  • the rotating end 212b includes an arc-shaped plate 212d
  • the outer surface of the central shaft 211a facing the arc-shaped portion 211b includes an arc-shaped surface adapted to the arc-shaped plate 212d, so that the rotation can pass through the arc-shaped plate 212d along the arc-shaped surface.
  • the surface can be turned to set.
  • the central axis of the arc-shaped plate 212d and the central axis of the rotating shaft 111 overlap.
  • the hook 212c is connected to the side of the arc-shaped plate 212d away from the connecting end 212a, and the engaging groove 211h is provided on one side of the arc-shaped surface.
  • the secondary rotating member 212 is provided with a first sliding groove 212e, the first sliding groove 212e is extended in a radial direction or a direction parallel to the radial direction, and the flattened portion 202 of the supporting plate member 20 is slidably arranged Connected to the first chute 212e.
  • the secondary rotating member 212 includes, for example, first limit plates arranged at intervals, and a first chute 212e is formed between the two first limit plates.
  • the sliding member 30 is provided with a first sliding rail 31, and the first sliding rail 31 is located in the first sliding groove 212e. Through the mutual cooperation of the first limiting plate and the first sliding rail 31, the sliding member 30 can drive the secondary rotation.
  • the member 212 rotates around the shaft 111 .
  • the secondary rotating member 212 is further provided with a second chute 212f, the second chute 212f is extended along the circumferential direction, and the transmission part 230 is slidably connected to the second chute 212f.
  • the transmission part 230 includes the first transmission member 231
  • the fourth end 231b of the first transmission member 231 is in the shape of a plate.
  • the secondary rotating member 212 includes, for example, second limit plates arranged at intervals, and a second chute 212f is formed between the two second limit plates.
  • the fourth end 231b is located in the second chute 212f, and the cooperation between the fourth end 231b and the second limiting plate enables the secondary rotating member 212 to drive the first transmission member 231 to rotate.
  • the first sliding grooves 212e and the second sliding grooves 212f are spaced apart along the first direction.
  • the second sliding groove 212f is located on the side of the first sliding groove 212e facing the main body portion 120 of the fixed shaft 100 .
  • the rotating shaft 111 There are various installation positions of the rotating shaft 111.
  • the position of the rotating plate 42 and the flattening part 202 connected to the same group of the rotating shaft The position of the rotating shaft 111 of the same group of rotating shaft 111 components.
  • FIG. 16 is a schematic structural diagram of a foldable member provided in an embodiment of the first aspect of the present application in different states.
  • the position of the foldable support member 1 remains unchanged, and the support member is in an inwardly folded state, a flattened state and an outwardly folded state, respectively.
  • the dashed-dotted lines in FIG. 16 indicate the positions of the support plate in the inward folded state, the outward folded state and the flattened state, and the solid lines indicate the positions of the back cover assembly in the inwardly folded state, the outwardly folded state and the flattened state.
  • the dotted line can also indicate the positions of the flexible display screen 2 in the inward folded state, the outward folded state and the flattened state.
  • a first intersection M is formed between the extension line of the rotating plate 42 in the inward folded state and the rotating plate 42 in the flattened state, and a first intersection M is formed between the extension line of the flattened portion 202 in the inwardly folded state and the flattened portion 202 in the flattened state.
  • intersections N Two intersections N, the connecting line of the first intersection M and the second intersection N forms the first position line; the extension line of the rotating plate 42 in the outwardly folded state and the rotating plate 42 in the flattened state form a third intersection Q, and the outwardly folded A fourth intersection P is formed between the extension line of the flattened portion 202 in the flattened state and the flattened portion 202 in the flattened state, and the connecting line of the third intersection Q and the fourth intersection P forms a second position line;
  • the two position lines form the fifth intersection O', and the center line of the rotating shaft 111 is located at the fifth intersection O'.
  • the position of the rotating shaft 111 determined by the above method can realize 180-degree rotation of each flattening portion 202 , thereby realizing multi-angle bending of the entire foldable support member 1 .
  • the support plate 20 supports the flexible display screen 2, which can realize 180-degree rotation of the first fixing part 21 and/or the second fixing part 22 on the flexible display screen 2, and realize the display device of multi-angle bending.
  • the bending radius of the support plate 20 is R2
  • the thickness of the foldable support member 1 is H
  • the distance between the rotating plate 42 and the central axis in the outwardly folded state is d
  • the intersection of the back cover assembly 40 and the central axis is defined as (0, 0)
  • the position of the fifth intersection is (x, y).
  • the foldable support member 1 can be folded both inwardly and outwardly, so that the flattening portion 202 can realize 180-degree rotation, and can be folded to support
  • the component 1 can be bent 360 degrees.
  • a display device provided by an embodiment of the second aspect of the present application includes the foldable support member 1 according to any one of the above-mentioned embodiments of the first aspect.
  • the display device further includes a flexible display screen 2 , and the flexible display screen 2 is disposed on a side of the flattening portion 202 away from the rotating assembly 200 .
  • the deformation amount of the support plate 20 of the foldable support member 1 is small, which can reduce the flexible display screen. 2 deformation, thereby improving the lifespan of the flexible display screen 2.
  • the flexible display screen 2 includes a first fixing portion 21, a second fixing portion 22, and a bending portion 23 connected between the first fixing portion 21 and the second fixing portion 22. At least one of the first fixing portion 21 and the second fixing portion 22 is connected to the flattening portion 202 , and the bending portion 23 is disposed corresponding to the fixing shaft 100 .
  • the first fixing part 21 and the second fixing part 22 are respectively connected to each flattening part 202 .
  • the size of the flattening portion 202 is adapted to the size of the first fixing portion 21 and/or the second fixing portion 22 .
  • the extension size of the flattening portion 202 in the circumferential direction is smaller than the size of the first fixing portion 21 and/or the second fixing portion 22 .
  • the flattening portion 202 is connected to the side of the first fixing portion 21 and/or the second fixing portion 22 facing the bending portion 23 .
  • the display device further includes a screen body supporter 3 , the screen body supporter 3 is disposed on the side of the flattening portion 202 away from the connecting portion 201 , and the screen body supporter 3 and the flattening portion 202 jointly support the first fixing portion 21 . and/or the second fixing part 22 .
  • the display device further includes a middle frame, which is embedded outside the screen support member 3 .
  • the display device further includes an electrical main board 4 , which is disposed on the side of the screen support member 3 away from the flexible display screen 2 .
  • the display device further includes a battery 5 , and the battery 5 and the electrical main board 4 are respectively disposed on both sides of the bending portion 23 .
  • the battery 5 and the electrical main board 4 are respectively disposed on the side of each screen support member 3 away from the flexible display screen 2 .
  • the display device further includes a bead 6, which is located on the side of the screen body support 3 facing the flexible display screen 2, and the bead 6 is U-shaped.

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Abstract

本申请实施例提供一种可折叠支撑构件及显示装置，可折叠支撑构件具有弯折状态和展平状态，可折叠支撑构件包括：转轴部件，包括沿第一方向延伸成型的固定轴和可转动地连接于固定轴的转动组件；支撑板件，包括相互连接的连接部和展平部，连接部固定于固定轴，展平部相对连接部绕固定轴可弯折设置；其中，展平部沿固定轴的圆周方向可滑动地连接于转动组件，以使在可折叠支撑构件在弯折状态转和展平状态之间转变时，展平部能够沿转动组件在圆周方向上滑动。本申请实施例的可折叠支撑构件能够减小支撑板件弯折时的形变量，进而减小待支撑件弯折时的形变量，提高待支撑件的使用寿命。

Description

可折叠支撑构件及显示装置
相关申请的交叉引用
本申请要求享有于2020年11月09日提交的名称为“可折叠支撑构件及显示装置”的中国专利申请第202011241599.X号的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及显示设备技术领域，尤其涉及一种显示装置。
背景技术
从折叠屏手机发布至今，全球手机厂商相继推出了各自的折叠屏手机产品，无论是内折、外折，还是横折、竖折，折叠屏俨然成为众厂商争相布局的方向，手机行业迎来了新赛道。
但由于折叠结构限制，折叠屏手机实现内外弯时均需要应对转轴闭合和打开所产生的长度变化，这种长度变化可能导致显示屏被拉伸或挤压，降低了显示屏的使用寿命，使得显示屏失效，无法正常显示。
因此，亟需一种新的可折叠支撑构件及显示装置。
发明内容
本申请实施例提供一种可折叠支撑构件及显示装置，旨在改善可折叠支撑构件在弯折状态和展平状态下尺寸相差太大的问题。
本申请第一方面的实施例提供了一种可折叠支撑构件，可折叠支撑构件具有弯折状态和展平状态，可折叠支撑构件包括：转轴部件，包括沿第一方向延伸成型的固定轴和可转动地连接于固定轴的转动组件；支撑板件，包括相互连接的连接部和展平部，连接部固定于固定轴，展平部相对连接部绕固定轴可弯折设置；其中，展平部沿固定轴的圆周方向可滑动地 连接于转动组件，以使在可折叠支撑构件在弯折状态转和展平状态之间转变时，展平部能够沿转动组件在圆周方向上滑动。
本申请第二方面的实施例提供一种显示装置，包括上述任一第一方面实施例的可折叠支撑构件。
在本申请实施例的可折叠支撑构件中，可折叠支撑构件包括转轴部件和支撑板件。转轴部件包括固定轴和转动组件，支撑板件包括连接部和展平部。连接部固定于固定轴，展平部和转动组件连接，使得转动组件能够带动展平部绕固定轴转动，即转动组件能够带动展平部绕连接部弯折，实现支撑板件的弯折和展平。展平部相对连接部沿圆周方向可滑动设置，在可折叠支撑构件在弯折状态和展平状态之间转变时，展平部能够沿靠近或远离固定轴的方向移动，避免支撑板件弯折时连接部被拉伸或挤压，减小支撑板件弯折时的形变量。因此本申请实施例的可折叠支撑构件能够减小支撑板件弯折时的形变量，进而减小待支撑件弯折时的形变量，提高待支撑件的使用寿命。
附图说明
图1是本申请第一方面实施例提供的一种可折叠构件的分解状态结构示意图。
图2是本申请第一方面实施例提供的一种可折叠构件的局部结构示意图。
图3是本申请第一方面实施例提供的一种可折叠构件的另一局部结构示意图。
图4是本申请实施例提供的一种柔性显示屏的结构示意图。
图5是本申请第一方面实施例提供的一种可折叠构件在内折状态下的结构示意图。
图6是本申请第一方面实施例提供的一种可折叠构件在展平状态下的结构示意图。
图7是本申请第一方面实施例提供的一种可折叠构件在外折状态下的结构示意图。
图8是是本申请第一方面实施例提供的一种可折叠构件在内折状态下的立体结构示意图。
图9是本申请第一方面实施例提供的一种可折叠构件由内折状态转变至展平状态的过程图。
图10是本申请第一方面实施例提供的一种可折叠构件在展平状态下的立体图。
图11是本申请第一方面实施例提供的一种可折叠构件由展平状态转变至外折状态的过程图。
图12是本申请第一方面实施例提供的一种可折叠构件在外折状态下的结构示意图。
图13是本申请第一方面实施例提供的一种可折叠构件的又一结构示意图。
图14是图13中I处的局部放大结构示意图。
图15是本申请第一方面实施例提供的一种可折叠构件的局部分解图。
图16是本申请第一方面实施例提供的一种可折叠构件在不同状态下的结构简图。
图17是本申请第二方面实施例提供的一种显示装置的分解图。
具体实施方式
为了更好地理解本申请，下面结合图1至图17对本申请实施例的可折叠支撑构件和显示装置进行详细描述。
根据本申请实施例的可折叠支撑构件1，可折叠支撑构件1具有弯折状态和展平状态，可折叠支撑构件1包括：转轴部件10，包括沿第一方向(图1中的Z方向)延伸成型的固定轴100和可转动地连接于固定轴100的转动组件200；支撑板件20，包括相互连接的连接部201和展平部202，连接部201固定于固定轴100，展平部202相对连接部201绕固定轴100可弯折设置；其中，展平部202沿固定轴100的圆周方向可滑动地连接于转动组件200，以使在可折叠支撑构件1在弯折状态转和展平状态之 间转变时，展平部202能够沿转动组件200在圆周方向上滑动。
固定轴100的圆周方向是指以固定轴100的中心线为起始点，在垂直于固定轴的平面上沿远离固定轴100的方向向外辐射的圆周方向。当展平部202沿转动组件200在圆周方向上滑动时，展平部202能够靠近固定轴100或远离固定轴100。由于连接部201固定于固定轴100，当展平部202沿转动组件200在圆周方向上滑动时，展平部202能够靠近连接部201或远离连接部201。
在本申请实施例的可折叠支撑构件1的连接部201固定于固定轴100，展平部202和转动组件200连接，使得转动组件200能够带动展平部202绕固定轴100转动，即转动组件200能够带动展平部202绕连接部201弯折，实现支撑板件20的弯折和展平。
展平部202相对连接部201沿圆周方向可滑动设置，在可折叠支撑构件1在弯折状态和展平状态之间转变时，展平部202能够沿靠近或远离固定轴100的方向移动，避免支撑板件20弯折时连接部201被拉伸或挤压，减小支撑板件20弯折时的形变量。因此本申请实施例的可折叠支撑构件1能够减小支撑板件20弯折时的形变量，进而减小待支撑件弯折时的形变量，提高待支撑件的使用寿命。
支撑板件20的设置方式有多种，在一些可选的实施例中，支撑板件20使用弹性模量较小的材料，例如支撑板件20的材料为钢板，钢板材料能够进一步减小支撑板件20弯折时产生的形变量。
支撑板件20可一体成型，即连接部201和展平部202一体成型，使得支撑板件20具有较为光滑的支撑面，改善支撑板件20对待支撑件造成的划伤损坏。
展平部202和转动组件200相互滑动的设置方式有多种，例如展平部202朝向转动组件200的表面设置有滑槽，滑槽沿圆周方向延伸成型，展平部202通过滑槽相对转动组件200可滑动设置。
在另一些可选的实施例中，可折叠支撑结构件还包括滑动部件30，支撑板件20的展平部202通过滑动部件30连接于转动组件200。滑动部件30相对转动组件200沿圆周方向可滑动设置，连接部201固定于滑动部件 30。通过滑动部件30带动展平部202相对转动组件200滑动。
支撑板件20固定于固定轴100的方式有多种，例如支撑板件20的连接部201粘接于固定轴100，或者支撑板件20的连接部201焊接于固定轴100。
请一并参阅图1和图2，固定轴100上凹陷形成有安装槽121，支撑板件20的连接部201上设置有向一侧凸伸形成的凸部201a及设于凸部201a的凹部201b，凸部201a位于安装槽121。可折叠支撑构件1还包括挤压块50，位于凹部201b内，且挤压块50和凹部201b过盈配合。
凸部201a由连接部201弯折形成，凸部201a具有用于和安装槽121内表面接触配合的外表面，凹部201b还具有用于安装挤压块50的容纳腔及与容纳腔连通的安装开口，挤压块50由安装开口处挤压于凹部201b的容纳腔内，从而将连接部201固定于固定轴100上的安装槽121内。
可选的，安装槽121靠近于固定轴100在第一方向上的中部设置，使得连接部201各处的受力更加平衡。
在一些实施例中，安装槽121包括底面121a、连接于底面121a在固定轴100径向两侧的两侧面121b和与底面121a相对设置的开口，在底面121a至开口的方向，两侧面121b之间的距离逐渐增大。安装槽121的开口较大，便于将凸部201a安装于安装槽121内，能够提高可折叠支撑结构件的装配效率。
可选的，凸部201a与安装槽121的形状相适配，在安装槽121的底面121a至开口的方向上，凸部201a的尺寸逐渐增大。凸部201a的安装开口尺寸较大，便于将挤压块50挤压于容纳腔内。
可选的，挤压块50的横截面呈楔形。便于挤压块50挤压于凸部201a内。可选的，挤压块50的形状和凸部201a的形状相适配。
请一并参阅图1和图3可折叠支撑构件1还包括背盖组件40，位于转轴部件10背离支撑板件20的一侧，背盖组件40包括：固定板41，固定连接于固定轴100；转动板42，可转动地连接于固定板41，转动板42沿圆周方向可滑动地连接于转动组件200，转动板42和转动组件200一一对应连接设置。
在这些可选的实施例中，通过背盖组件40能够向支撑板件20和转轴部件10提供保护。背盖组件40包括固定板41和转动板42，固定板41和转动板42相互转动连接，且转动板42和转动组件200在圆周方向上可滑动设置，不会对转动组件200绕固定轴100转动造成干涉。
转动板42的设置方式有多种，在一些实施例中，转动板42包括第一转动板42a和第二转动板42b，第二转动板42b通过第一转动板42a连接于固定板41，第一转动板42a可转动地连接于固定板41，第二转动板42b可转动地连接于第一转动板42a。
在这些可选的实施例中，转动板42包括第一转动板42a和第二转动板42b，且第一转动板42a、第二转动板42b和第三转动板42均可转动连接，能够扩大可折叠支撑构件1的转动角度。
第一转动板42a可以为曲面板，且在展平状态第一转动板42a沿背离转动组件200的方向弯折。能够扩大第二转动板42b由展平状态转动至弯折状态时产生的转动角度。
第二转动板42b沿圆周方向可滑动地连接于转动组件200。可选的，背盖组件40还包括封板43，封板43与转动板42垂直设置，封板43设置于转动板42在第一方向上的一端，以向转轴部件10提供保护。
可折叠支撑构件1的由展平状态弯折至弯折状态的方式有多种，例如可折叠支撑构件1的一部分固定，另一部分通过转轴部件10、支撑板件20等绕固定轴100转动，使得可折叠支撑构件1由展平状态弯折至弯折状态。
请一并参阅图1、图3和图4，当可折叠支撑构件1用于显示装置，且待支撑件为柔性显示屏2时，柔性显示屏2包括第一固定部21、第二固定部22和位于所述第一固定部21和所述第二固定部22之间的可弯折部23。
可折叠支撑构件1可以带动第一固定部21和/或第二固定部22绕弯折部23转动，实现显示装置的展开和弯折。例如，支撑板件20的展平部202支撑第一固定部21，通过转动板42依次带动转动组件200、展平部202和第一固定部21绕弯折部23转动。
在另一些可选的实施例中，转动组件200为两组，在展平状态，两组转动组件200分设于固定轴100在第二方向(图1中的X方向)上的两侧，第二方向与第一方向相交；展平部202为两个，各展平部202分别沿圆周方向可滑动地连接于各转动组件200，在展平状态，两个展平部202分设于连接部201在第二方向的两侧。由于转动板42和转动组件200一一对应连接设置，当转动组件200为两组时，转动板42为两个，各转动板42分别沿圆周方向可滑动地连接于各转动组件200，在展平状态，两个转动板42分设于固定板41在第二方向的两侧。
在这些可选的实施例中，转动组件200、展平部202和转动板42分别为两个。当可折叠支撑构件1用于显示装置时，两组相互配合的转动组件200、展平部202和转动板42能够分别带动第一固定部21和第二固定部22绕弯折部23转动，从而实现显示装置的展开和弯折。
请一并参阅图5至图7，弯折状态例包括内折状态和外折状态，如图5所示，在内折状态，两个转动板42位于两个展平部202的外侧。图6所示，在展平状态，支撑板件20呈180度平面状。如图7所示，在外折状态，两个展平部202位于转动板42的外侧。
请一并参阅图8至图12，可折叠结构件能够由图8所示的内折状态经由图9所示的状态转变至图10所示的展平状态。可折叠结构件还可以由图10所示的展平状态经由图11所示的状态转变至图12所示的外折状态。
在外折状态和内折状态，两个展平部202相互平行。那么由外折状态转变至内折状态需要各展平部202旋转180度。
请一并参阅图13至图15，固定轴100包括轴部110，轴部110包括沿第二方向间隔分布的两个转轴111，转轴111沿第一方向延伸设置；两组转动组件200分别可转动地连接于转轴111，且轴部110的两个转轴111平行设置。
在这些可选的实施例中，固定轴100的轴部110包括两个平行设置的转轴111，两组转动组件200分别可转动地连接于转轴111。两个转轴111平行设置，能够减小弯折状态下两个展平部202之间的夹角。例如当轴部110的两个转轴111相互平行时，通过合理调整轴部110内两个转轴111的 间隔距离，使得处于外折状态的两个展平部202能够相互平行。
在一些实施例中，固定轴100包括两组轴部110，两组轴部110分设于固定轴100在第一方向上的两端，各转轴111分别连接有转动组件200。在这些可选的实施例中，轴部110分设于固定轴100的第一方向上的两端，那么转轴111组件也分设于固定轴100上的两端，能够减小转轴111组件的体积，节省空间。且通过固定轴100两端的两个转轴111组件，能够向支撑板件20提供更好的支撑，令支撑板件20受力平衡。
转动组件200的设置方式有多种，在一些可选的实施例中，转动组件200包括：旋转部210，可转动地连接于转轴111，展平部202和转动板42沿圆周方向可滑动地连接于旋转部210；配合部220，连接于旋转部210，且配合部220可转动设置，连接于同一组轴部110的两个转动组件200的配合部220相互配合，以使连接于同一组轴部110的两个转动组件200的旋转部210能够同步转动。
在这些可选的实施例中，转动组件200通过旋转部210与展平部202、转动板42可滑动连接。连接于同一轴部110的两个转动组件200的配合部220相互配合，使得旋转部210能够同步转动，进而带动两个展平部202同步转动。当可折叠支撑构件1用于显示装置时，能够实现第一固定部21和第二固定部22相对弯折部23同步转动，便于显示装置在展开和折叠状态之间转变。
配合部220的设置方式有多种，例如配合部220为同步传送带。可选的，配合部220为齿轮，连接于同一轴部110的两个传动组件的齿轮相互啮合，且连接于同一轴部110的两个传动组件的齿轮尺寸一致。
可选的，固定轴100上设置有固定槽130，相互啮合的两个齿轮安装于固定槽130。通过固定槽130能够向齿轮提供防护，避免其他零部件影响齿轮的正常工作。
在一些实施例中，固定轴100还包括主体部120，固定槽130设置于主体部120在第一方向上的一侧，轴部110设置于固定槽130背离主体部120的一侧。安装槽121例如设置于主体部120。当轴部110为两个时，固定槽130为两个，两个固定槽130设置于主体部120在第一方向上的两 侧，轴部110位于固定槽130背离主体部120的一侧。
配合部220的尺寸不做限定，例如配合部220的尺寸较大，连接于同一旋转部210的配合部220的转动轴线和转轴111的中心线重叠。
在另一些可选的实施例中，配合部220的尺寸较小，同一轴部110对应的两个配合部220的转动轴线位于两个转轴111中心线内部。即同一轴部110对应的两个配合部220的转动轴线位于两个转轴111中心线连线之间。转动组件200还包括传动部230，传动部230的一端连接于旋转部210，以使旋转部210能够带动传动部230转动，且传动部230相对旋转部210沿圆周方向可滑动设置，传动部230的另一端连接于配合部220。旋转部210通过传动部230带动配合部220转动。
可选的，传动部230包括：第一传动件231，连接于旋转部210，以使旋转部210能够带动第一传动件231转动，且第一传动件231相对旋转部210沿圆周方向可滑动设置；第二传动件232，与第一传动件231可转动连接，且第二传动件232可转动地连接于配合部220。通过设置第一传动件231和第二传动件232，能够避免传动部230自锁，保证可折叠支撑构件1在弯折状态和展平状态之间顺滑转变。
在一些实施例中，第二传动件232包括沿圆周方向间隔分布的第一端232a和第二端232b，第一端232a固定连接于配合部220，第二端232b可转动地连接于第一传动件231。第一端232a例如和配合部220相互焊接，以使第二传动件232能够带动配合部220转动。
第一传动件231包括沿圆周方向间隔分布的第三端231a和第四端231b，第三端231a可转动地连接于第二传动件232，第四端231b连接于旋转部210，以使旋转部210能够通过第四端231b带动传动部230转动，且第四端231b相对旋转部210沿圆周方向可滑动设置。
可选的，第一传动件231的第三端231a和第二传动件232的第二端232b均呈套筒结构，使得第一传动件231和第二传动件232能够通过轴套结构可转动地连接。
第一传动件231的第四端231b例如呈板状，旋转部210上设置有第二滑槽212f，第一传动件231的第四端231b在第二滑槽212f内沿圆周方向 可滑动设置，且旋转部210能够通过第二滑槽212f带动第四端231b绕固定轴100转动。
旋转部210的设置方式有多种，例如旋转部210包括旋转套筒，旋转套筒套设于转轴111，旋转部210通过旋转套筒绕转轴111能够在180度或更大的角度范围内转动。
在另一些可选的实施例中，由于空间限制，例如当可折叠支撑构件1用于显示装置时，显示装置内的空间十分有限，为了实现旋转部210具有较大的转动角度需要设置多级旋转件。
可选的，旋转部210包括：一级旋转件211，可转动地连接于转轴111；二级旋转件212，包括旋转端212b和连接端212a，旋转端212b可转动地连接于一级旋转件211，且二级旋转件212通过旋转端212b绕转轴111可转动设置，连接端212a连接于传动部230。
在这些可选的实施例中，通过设置一级旋转件211和二级旋转件212，能够增大旋转部210的转动角度。
一级旋转件211和转轴111的连接方式有多种，例如，轴部110还包括围合于转轴111周侧的限位部112，限位部112和转轴111间隔设置，以在限位部112和转轴111之间形成第一旋转槽113，一级旋转件211可转动地设置于第一旋转槽113。
可选的，第一旋转槽113具有第一开口，第一开口位于第一旋转槽113在第一方向上的一端，使得一级旋转件211能够由第一开口安装于第一旋转槽113内。可选的，可折叠支撑构件1还包括：封装件60，用于封装第一开口。
可选的，如图15所示，一级旋转件211包括中轴211a、环绕中轴211a设置的弧形部211b及连接中轴211a和弧形部211b的底端211c，底端211c设置有配合槽211d，一级旋转件211通过配合槽211d可转动地连接于转轴111，中轴211a和弧形部211b之间形成第二旋转槽211e，二级旋转件212的旋转端212b可转动地设置于第二旋转槽211e。
在这些可选的实施例中，一级旋转件211通过配合槽211d套设于转轴111，二级旋转件212设置于第二旋转槽211e内。一级旋转件211通过配 合槽211d绕转轴111可转动设置，二级旋转件212通过第二旋转槽211e相对一级旋转件211可转动设置。
可选的，第二旋转槽211e具有第二开口，第二开口位于第二旋转件在第一方向上的一端，二级旋转件212由第二开口安装于第二旋转槽211e内。第二开口和第一开口位于同侧。封装件60还用于封装至少部分第二开口。
可选的，转轴111背离限位部112的表面围合形成有凹陷部111a，一级旋转件211包括围合配合槽211d的限位块211f，限位块211f位于凹陷部111a内。转轴111的中心线穿过限位块211f。可选的，弧形部211b的中心轴线和转轴111的中心轴线重合，使得一级旋转件211可以通过弧形部211b绕转轴111转动。
在一些实施例中，弧形部211b背离中轴211a的外表面设置有第一止挡部211g，限位部112上设置有第二止挡部112a，以通过第一止挡部211g和第二止挡部112a的配合限定一级旋转件211的旋转角度。通过第一止挡部211g和第二止挡部112a的配合能够向一级旋转件211提供限位，避免一级旋转件211脱离第一旋转槽113。
可选的，中轴211a朝向弧形部211b的表面设置有卡扣槽211h，旋转端212b设置有与卡扣槽211h相互配合的卡钩212c，以通过卡扣槽211h和卡钩212c限定二级旋转件212的旋转角度。通过卡钩212c和卡扣槽211h的相互配合，能够向二级旋转件212提供限位，避免二级旋转件212脱离第二旋转槽211e。
可选的，旋转端212b包括弧形板212d，中轴211a朝向弧形部211b的外表面包括与弧形板212d相适配的弧形表面，以使旋转动通过弧形板212d沿弧形表面可转动设置。可选的，弧形板212d的中心轴线和转轴111的中心轴线重叠。可选的，卡钩212c连接于弧形板212d背离连接端212a一侧，卡扣槽211h设置于弧形表面的一侧。
在一些实施例中，二级旋转件212上设置有第一滑槽212e，第一滑槽212e沿径向或平行于径向的方向延伸设置，支撑板件20的展平部202可滑动地连接于第一滑槽212e。当展平部202通过滑动部件30连接于转动 组件200时，滑动部件30可滑动地连接于第一滑槽212e。二级旋转件212例如包括间隔设置的第一限位板，两第一限位板之间形成第一滑槽212e。滑动部件30上例如设置有第一滑轨31，第一滑轨31位于第一滑槽212e，通过第一限位板和第一滑轨31的相互配合，使得滑动部件30能带动二级旋转件212绕转轴111转动。
可选的，二级旋转件212上还设置有第二滑槽212f，第二滑槽212f沿圆周方向延伸设置，传动部230可滑动地连接于第二滑槽212f。例如当传动部230包括第一传动件231，第一传动件231的第四端231b呈板状。二级旋转件212例如包括间隔设置的第二限位板，两第二限位板之间形成第二滑槽212f。第四端231b位于第二滑槽212f内，第四端231b和第二限位板的相互配合，使得二级旋转件212能够带动第一传动件231转动。
第一滑槽212e和第二滑槽212f沿第一方向间隔分布。例如，第二滑槽212f位于第一滑槽212e朝向固定轴100主体部120的一侧。
转轴111的设置位置有多种，在一些可选的实施例中，可以根据连接于同一组转轴111组件的转动板42和展平部202在弯折状态和展平状态的位置，确定连接于同一组转轴111组件的转轴111的位置。
请一并参阅图16，图16是本申请第一方面实施例提供的一种可折叠构件在不同状态下的结构简图。可折叠支撑构件1的位置不变，支撑构件分别处于内折状态、展平状态和外折状态。图16中点划线表示支撑板件在内折状态、外折状态和展平状态的位置，实线表示背盖组件在在内折状态、外折状态和展平状态的位置。当可折叠构件用于显示装置时，点划线还可以表示柔性显示屏2在内折状态、外折状态和展平状态的位置。
内折状态下转动板42的延长线与展平状态下转动板42之间形成第一交点M，内折状态下展平部202的延长线与展平状态下展平部202之间形成第二交点N，第一交点M和第二交点N的连线形成第一位置线；外折状态下转动板42的延长线与展平状态下转动板42之间形成第三交点Q，外折状态下展平部202的延长线与展平状态下展平部202之间形成第四交点P，第三交点Q和第四交点P的连线形成第二位置线；第一位置线和第二位置线形成第五交点O’，转轴111的中心线位于第五交点O’。
在这些可选的实施例中，通过上述方法确定的转轴111位置，能够实现各展平部202的180度旋转，从而实现整个可折叠支撑构件1的多角度弯折。当可折叠支撑构件1用于显示装置时，支撑板件20支撑柔性显示屏2，能够实现柔性显示屏2上第一固定部21和/或第二固定部22的180度旋转，实现显示装置的多角度弯折。
当可折叠支撑构件1的位置不变时，内折状态下、外折状态下和展平状态的中心线重叠，假设内折状态时支撑板件20的弯折半径为R1，外折状态时支撑板件20的弯折半径为R2，可折叠支撑构件1的厚度为H，外折状态下转动板42距离中心轴线的距离为d，背盖组件40与中心轴线的交点定义为(0,0)，第五交点的位置为(x,y)。
此外，在可折叠支撑构件1展平状态转变至内折状态时，支撑板件20的弯折圆心在第一位置线上。在可折叠支撑构件1由展平状态转变至外折状态时，支撑板件20的弯折圆心在第二位置线上。那么：
x+y＝R1+H           (1)
x-y＝t/2           (2)
H+t/2＝R2            (3)
由上述式(1)、(2)和(3)可以得到：
x＝(R1+R2)/2           (4)
y＝H-(R2-R1)/2           (5)
根据上式得到的第五交点，并根据第五交点确定转轴111的位置，使得可折叠支撑构件1既能够内折，还能够外折，令展平部202能够实现180度旋转，可折叠支撑构件1能够实现360度弯折。
参阅图17，本申请第二方面的实施例提供的一种显示装置，包括上述任一第一方面实施例的可折叠支撑构件1。显示装置还包括柔性显示屏2，柔性显示屏2设置于展平部202背离转动组件200的一侧。
根据本申请实施例提供的显示装置，在可折叠支撑构件1在弯折状态和展平状态之间转变时，可折叠支撑构件1的支撑板件20变形量较小，能够减小柔性显示屏2的变形量，进而提高柔性显示屏2的寿命。
可选的，柔性显示屏2包括第一固定部21、第二固定部22和连接于 第一固定部21和第二固定部22之间的弯折部23。第一固定部21和第二固定部22中的至少一者连接于展平部202，弯折部23对应于固定轴100设置。例如当转动组件200为两个，展平部202为两个时，第一固定部21和第二固定部22分别连接于各展平部202。
在一些实施例中，展平部202的尺寸和第一固定部21和/或第二固定部22的尺寸相适配。
在另一些可选的实施例中，展平部202在圆周方向上的延伸尺寸小于第一固定部21和/或第二固定部22的尺寸。展平部202连接于第一固定部21和/或第二固定部22朝向弯折部23的一侧。
可选的，显示装置还包括屏体支撑件3，屏体支撑件3设置于展平部202背离连接部201的一侧，屏体支撑件3与展平部202共同支撑第一固定部21和/或第二固定部22。屏体支撑件3例如为两个，两个屏体支撑件3分设于弯折部23的两侧。可选的，显示装置还包括中框，套嵌于屏体支撑件3外。
显示装置例如还包括电气主板4，设置于屏体支撑件3背离柔性显示屏2的一侧。显示装置例如还包括电池5，电池5和电气主板4分设于弯折部23的两侧。电池5和电气主板4分别设置于各屏体支撑件3背离柔性显示屏2的一侧。
显示装置例如还包括压条6，位于屏体支撑件3朝向柔性显示屏2的一侧，压条6呈U型。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (20)

  1. 一种可折叠支撑构件，具有弯折状态和展平状态，所述可折叠支撑构件包括：
    转轴部件，包括沿第一方向延伸成型的固定轴和可转动地连接于所述固定轴的转动组件；
    支撑板件，用于支撑待支撑件，所述支撑板件包括相互连接的连接部和展平部，所述连接部固定于所述固定轴，所述连接部绕所述固定轴弯折设置，
    其中，所述展平部沿所述固定轴的圆周方向可滑动地连接于所述转动组件，以使在所述可折叠支撑构件在所述弯折状态转和所述展平状态之间转变时，所述展平部能够沿所述转动组件在所述圆周方向上滑动。
  2. 根据权利要求1所述的可折叠支撑构件，其中，所述支撑板件的所述展平部通过滑动部件连接于所述转动组件，所述滑动部件相对所述转动组件沿所述圆周方向可滑动设置，所述连接部固定于所述滑动部件。
  3. 根据权利要求1所述的可折叠支撑构件，其中，
    所述转动组件为两组，在所述展平状态，两组所述转动组件分设于所述固定轴在第二方向上的两侧，所述第二方向与所述第一方向相交；
    所述展平部为两个，各所述展平部分别沿所述圆周方向可滑动地连接于各所述转动组件，在所述展平状态，两个所述展平部分设于所述连接部在所述第二方向的两侧。
  4. 根据权利要求3所述的可折叠支撑构件，其中，
    所述固定轴包括轴部，所述轴部包括沿所述第二方向间隔分布的两个转轴，所述转轴沿所述第一方向延伸设置；
    两组所述转动组件分别可转动地连接于所述转轴，且所述轴部的两个所述转轴平行设置。
  5. 根据权利要求4所述的可折叠支撑构件，其中，所述转动组件包括：
    旋转部，可转动地连接于所述转轴，所述展平部和所述转动板沿所述 圆周方向可滑动地连接于所述旋转部；
    配合部，连接于所述旋转部，且所述配合部可转动设置，连接于同一所述轴部的两个所述转动组件的所述配合部相互配合，以使连接于同一所述轴部的两个所述转动组件的所述旋转部能够同步转动。
  6. 根据权利要求5所述的可折叠支撑构件，其中，所述旋转部包括：
    一级旋转件，可转动地连接于所述转轴；
    二级旋转件，包括旋转端和连接端，所述旋转端可转动地连接于所述一级旋转件，且所述二级旋转件通过所述旋转端绕所述转轴可转动设置，所述连接端连接于所述配合部。
  7. 根据权利要求6所述的可折叠支撑构件，其中，所述轴部还包括围合于所述转轴周侧的限位部，所述限位部和所述转轴间隔设置，以在所述限位部和所述转轴之间形成第一旋转槽，所述一级旋转件可转动地设置于所述第一旋转槽。
  8. 根据权利要求7所述的可折叠支撑构件，其中，所述一级旋转件包括中轴、环绕所述中轴设置的弧形部及连接所述中轴和弧形部的底端，所述底端设置有配合槽，所述一级旋转件通过所述配合槽可转动地连接于所述转轴，所述中轴和所述弧形部之间形成第二旋转槽，所述二级旋转件的所述旋转端可转动地设置于所述第二旋转槽。
  9. 根据权利要求8所述的可折叠支撑构件，其中，所述弧形部背离所述中轴的外表面设置有第一止挡部，所述限位部上设置有与所述第一止挡部配合以限定所述一级旋转件的旋转角度的第二止挡部。
  10. 根据权利要求8所述的可折叠支撑构件，其中，所述中轴朝向所述弧形部的表面设置有卡扣槽，所述旋转端设置有与所述卡扣槽相互配合的卡钩，以通过所述卡扣槽和所述卡钩限定所述二级旋转件的旋转角度。
  11. 根据权利要求8所述的可折叠支撑构件，其中，所述旋转端设置有弧形板，所述中轴朝向所述弧形部的外表面包括与所述弧形板相适配的弧形表面，以使所述旋转动通过所述弧形板沿所述弧形表面可转动设置。
  12. 根据权利要求6所述的可折叠支撑构件，其中，所述转动组件还包括传动部，所述传动部的一端连接于所述旋转部，以使所述旋转部能够带 动所述传动部转动，且所述传动部相对所述旋转部沿所述圆周方向可滑动设置，所述传动部的另一端连接于所述配合部。
  13. 根据权利要求12所述的可折叠支撑构件，其中，所述传动部包括：
    第一传动件，连接于所述旋转部，以使所述旋转部能够带动所述第一传动件转动，且所述第一传动件相对所述旋转部沿所述圆周方向可滑动设置；
    第二传动件，与所述第一传动件可转动连接，且所述第二传动件可转动地连接于所述配合部。
  14. 根据权利要求13所述的可折叠支撑构件，其中，所述第二传动件包括沿所述圆周方向间隔分布的第一端和第二端，所述第一端连接于所述配合部，所述第二端可转动地连接于第一传动件。
  15. 根据权利要求13所述的可折叠支撑构件，其中，所述第一传动件包括沿所述圆周方向间隔分布的第三端和第四端，所述第三端可转动地连接于所述第二传动件，所述第四端连接于所述旋转部，以使所述旋转部能够通过所述第四端带动所述传动部转动，且所述第四端相对所述旋转部沿所述圆周方向可滑动设置。
  16. 根据权利要求4所述的可折叠支撑构件，其中，还包括背盖组件，位于所述转轴部件背离所述支撑板件的一侧，所述背盖组件包括：
    固定板，固定连接于所述固定轴；
    转动板，可转动地连接于所述固定板，所述转动板沿所述圆周方向可滑动地连接于所述转动组件，且所述转动组件和所述转动板一一对应连接设置。
  17. 根据权利要求16所述的可折叠支撑构件，其中，所述转动板包括第一转动板和第二转动板，所述第二转动板通过所述第一转动板连接于所述固定板，所述第一转动板可转动地连接于所述固定板，所述第二转动板可转动地连接于所述第一转动板。
  18. 根据权利要求16所述的可折叠支撑构件，其中，所述弯折状态包括内折状态和外折状态，在连接于同一组的所述转动组件的所述转轴、所 述转动板和所述展平部中；
    所述内折状态下所述转动板的延长线与所述展平状态下所述转动板之间形成第一交点，所述内折状态下所述展平部的延长线与所述展平状态下所述展平部之间形成第二交点，所述第一交点和所述第二交点的连线形成第一位置线；
    所述外折状态下所述转动板的延长线与所述展平状态下所述转动板之间形成第三交点，所述外折状态下所述展平部的延长线与所述展平状态下所述展平部之间形成第四交点，所述第三交点和所述第四交点的连线形成第二位置线；
    所述第一位置线和所述第二位置线形成第五交点，所述转轴的中心线位于所述第五交点。
  19. 根据权利要求1所述的可折叠支撑构件，其中，
    所述固定轴上凹陷形成有安装槽；
    所述支撑板件的所述连接部具有凸部及设于所述凸部的凹部，所述凸部位于所述安装槽；
    所述可折叠支撑构件还包括挤压块，位于所述凹部内，且所述挤压块和所述凹部过盈配合。
  20. 一种显示装置，包括：权利要求1-19任一项所述的可折叠支撑构件。
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