WO2020006804A1 - 支撑机构、柔性显示装置及屏幕组件 - Google Patents

支撑机构、柔性显示装置及屏幕组件 Download PDF

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Publication number
WO2020006804A1
WO2020006804A1 PCT/CN2018/099045 CN2018099045W WO2020006804A1 WO 2020006804 A1 WO2020006804 A1 WO 2020006804A1 CN 2018099045 W CN2018099045 W CN 2018099045W WO 2020006804 A1 WO2020006804 A1 WO 2020006804A1
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WO
WIPO (PCT)
Prior art keywords
layer
flexible display
hinge
support
screen assembly
Prior art date
Application number
PCT/CN2018/099045
Other languages
English (en)
French (fr)
Inventor
陈松亚
余晓军
凡小飞
Original Assignee
深圳市柔宇科技有限公司
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 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to CN201880093855.XA priority Critical patent/CN112470203A/zh
Publication of WO2020006804A1 publication Critical patent/WO2020006804A1/zh

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0226—Hinges
    • 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
    • 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
    • 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
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • 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
    • 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
    • H04M1/026—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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units

Definitions

  • the present application relates to the field of flexible display technology, and in particular, to a flexible display support mechanism, a flexible display device, and a screen assembly.
  • the existing flexible display device adheres and fixes the flexible display and the support, and realizes the bending of the flexible display through a hinge.
  • the support is easily separated from the hinge chain in the bending area and arched, thereby causing damage to the flexible display.
  • the present application proposes a flexible display support mechanism that is not easily damaged, and can provide more suitable support when the flexible display is bent.
  • the supporting organization of this application includes the following technical solutions:
  • a support mechanism is used to support a flexible display.
  • the flexible display includes:
  • the bonding layer includes a bonding surface and a connecting surface disposed opposite to each other, and the bonding surface is used for bonding a flexible display screen;
  • the connecting member is connected between the hinge and the bonding layer, so that the relative distance between the bonding layer and the hinge is fixed in a direction perpendicular to the bonding surface.
  • the present application also relates to a flexible display device, including the above-mentioned support mechanism and a flexible display screen, and the support mechanism is disposed on the back of the flexible display screen.
  • the present application relates to a screen assembly, which includes a flexible display screen, a sliding layer fixedly attached to the back of the flexible display screen, a deformation mechanism supporting the sliding layer, and a connecting member, and the connecting member generates the sliding layer and the deformation mechanism.
  • the forces acting close to each other keep the sliding layer and the deformation mechanism close to each other.
  • the supporting mechanism of the present application is affixed to the back of the flexible display screen to support the flexible display screen.
  • the flexible display includes a bending section, the supporting mechanism is provided with a hinge to cooperate with the bending section, and the hinge is located on a bearing layer of the supporting mechanism. There is also a laminating layer.
  • the bonding layer can protect the flexible display screen from friction in the unfolded and folded state.
  • the hinge is used to realize a bending action of the supporting mechanism with the bending section.
  • the supporting mechanism also keeps a fixed distance from the hinge in a direction perpendicular to the bonding surface by the fixing member provided on the bonding layer cooperating with the hinge.
  • the flexible display is always attached to the bonding layer, and the bonding layer always cooperates with the hinge, thereby avoiding the bending section and the Describe the separation of the hinge. Also, because the flexible display screen is always in a supported state, the flexible display device equipped with the flexible display screen is more firm and not easily damaged.
  • the distance between the sliding layer and the deformation mechanism is reduced and maintained by the connecting member, so that the screen assembly always keeps the deformation mechanism against the deformation during the bending process.
  • the sliding layer is supported by the flexible display screen.
  • the screen assembly described in the present application therefore has a more stable connection between the structural layers during the bending process, and avoids defects such as warping during the bending process of the flexible display screen.
  • FIG. 1 is a schematic diagram of a deployed state of a supporting mechanism of the present application
  • Figure 1a is an enlarged detail view of Figure 1;
  • FIG. 2 is a schematic diagram after bending in FIG. 1;
  • FIG. 2 is a schematic diagram after bending in FIG. 1;
  • FIG. 3 is a detailed schematic diagram of a bending section according to the present application.
  • FIG. 4 is a schematic diagram after bending in FIG. 3;
  • FIG. 5 is a schematic diagram of an embodiment in which the retaining member and the positioning member cooperate with each other;
  • FIG. 6 is a schematic diagram of FIG. 5 in another embodiment
  • FIG. 7 is a schematic diagram of FIG. 5 in still another embodiment
  • FIG. 8 is a schematic structural diagram of a back surface of FIG. 1;
  • FIG. 9 is a schematic diagram of another embodiment of FIG. 1;
  • FIG. 10 is a schematic diagram after bending of FIG. 9;
  • FIG. 11 is a schematic diagram of another embodiment of FIG. 9; FIG.
  • FIG. 12 is a schematic diagram of still another embodiment of FIG. 9; FIG.
  • FIG. 13 is a schematic diagram of an expanded state of a screen component of the present application.
  • FIG. 14 is a schematic view of FIG. 13 after being folded.
  • the support mechanism 100 includes a laminated bonding layer 10 and a bearing layer 20.
  • the lamination direction of the bonding layer 10 and the bearing layer 20 is the same as the direction in which the supporting mechanism 100 is stacked on the flexible display 200.
  • the bonding layer 10 includes a bonding surface 101 and a connection surface 11 disposed opposite to each other.
  • the bonding surface 101 is in contact with the back surface 201.
  • the carrying layer 20 supports the bonding layer 10 and is located on a side where the connection surface 11 is located, that is, the carrying layer 20 is located on a side of the bonding layer 10 away from the flexible display screen 200.
  • the bonding layer 10 is located between the flexible display screen 200 and the carrying layer 20.
  • the extending direction of the bonding surface 10 is a first direction 001
  • the flexible display screen 200 includes a bending section 202 in the first direction 001.
  • the bending section 202 can be bent, so that the flexible display screen 200 can be deformed by folding, curling, and the like, thereby changing the space posture of the flexible display screen 200, and can achieve advantages such as special display effects or convenient storage and carrying.
  • the supporting mechanism 100 needs to deform correspondingly as the flexible display screen 200 is bent.
  • the bonding layer 10 can be flexed arbitrarily with the flexible display screen 200, and the bearing layer 20 realizes the bending ability of the entire supporting mechanism 100 by driving the hinge 30 that the bonding layer 10 bends.
  • the bearing layer 20 is provided with a hinge 30 at a position corresponding to the bending section 202.
  • the bending direction and the bendable angle of the hinge 30 determine the degree of bending of the bending section 202.
  • the supporting mechanism 100 further includes a connecting member 40 connected between the hinge 30 and the bonding layer 10.
  • the connecting member 40 is disposed on the connecting surface 11 of the bonding layer 10 facing the bearing layer 20. .
  • the connecting member 40 and the hinge 30 are fixed to each other in a direction perpendicular to the bonding surface 101 to keep the relative distance between the bonding layer 10 and the hinge 30 fixed.
  • the flexible display screen 200 is located on a side with a larger bending radius. Compared with the state of FIG. 1, the flexible display screen 200 is displaced relative to the support mechanism 100 in the first direction 001.
  • the entire flexible display screen 200 is a physical stack formed by bonding multiple structural layers through optical double-sided adhesive, and the bending radius and bending life of the physical stack and the number and thickness of the stacks There is a very large correlation.
  • the fragile flexible display screen 200 has unfavorable consequences such as cracking or damage.
  • the layer thickness of each flexible display screen 200 may vary, and the risk of the bending section 202 becoming warped during the bending and flattening process of the whole machine is prone to occur.
  • the screen 200 is difficult to achieve large-scale production.
  • the elastic modulus of the bonding layer 10 is similar to that of the flexible display screen 200, and the stretching conditions of the two during bending are also close, without causing damage to the flexible display screen caused by inconsistent stretching.
  • the problem. Therefore, the bonding layer 10 of the present application and the flexible display screen 200 can be fully bonded together to form a whole.
  • the bonding layer 10 corresponding to the flexible display screen 200 can be held and bent 202 Contact, forming a reliable support for the bending section 202.
  • an iron-based or nickel-based liquid metal is used as the bonding layer 10 and the flexible display screen 200 is bonded and fixed.
  • a connecting member 40 is provided on the connecting surface 11 of the bonding layer 10 facing the bearing layer 20, and the connecting member 40 and the hinge 30 are fixed to each other.
  • the bonding layer 10 always receives the pulling force toward the hinge 30 under the action of the connecting member 40.
  • the relative position between the ply 10 and the hinge 30 is fixed.
  • the hinge 30 is in direct contact with the bonding layer 10 to provide direct support to the bonding layer 10.
  • the hinge 30 may be suspended from the fitting layer 10, that is, a gap is provided between the two, or other connecting members are provided between the hinge 30 and the fitting layer 10.
  • the holding between rooms is realized by the connecting member 40, that is, the hinge 30 supports the bonding layer 10 through the connecting member 40, and the technical effect to be achieved by the technical solution of the present application can also be achieved.
  • FIG. 1 a is an enlarged view of the position of the hinge 30.
  • the connecting member 40 includes a holding member 43 connected to the bonding layer 10 and a positioning member 32 connected to the hinge 30.
  • the connecting member 40 has a sliding space relative to the hinge 30, that is, the connecting member 43 is slidably connected between the hinge 30 and the bonding layer 10 through the cooperation of the holding member 43 and the positioning member 32. In this way, when the displacement between the bonding surface 10 and the hinge 30 is large, the displacement can be compensated only by the elastic deformation between the connecting member 40 and the hinge 30, thereby protecting the structural rigidity and stability of the support mechanism 100 of the present application.
  • the fitting surface 10 and the hinge 30 are not completely fixed, but there is a certain sliding space in the bending section 202, so that the fitting surface 10 can slide relative to the hinge 30 when the bending section 202 is bent, thereby In order to prevent the bending section 202 of the flexible display screen 20 from being stretched by the hinge 30.
  • the bonding layer 10 may be a structural layer integrally formed, or may be formed by laminating a plurality of structural layers. An embodiment is shown in FIG. 3, which is a detailed schematic diagram at the bending section 202.
  • the bonding layer 10 is provided with a sliding layer 12 and a supporting layer 13.
  • the sliding layer 12 is usually a liquid metal such as a nickel-based or iron-based material, and its elastic modulus and tensile strength can be adapted to the bending and stretching of the flexible display screen 200 to achieve all-round bonding.
  • liquid metal is used as the material of the sliding layer 12.
  • the liquid metal is an amorphous alloy that is solid at room temperature.
  • the liquid metal referred to in the present invention refers to heating the alloy to a molten state, and then cooling it at an ultra-fast cooling rate, so that the alloy crystal lattice solidifies before it can be arranged in order. Because it is in an amorphous state, like glass, it is also called non Crystal alloy, liquid metal or metallic glass.
  • the characteristics of liquid metal are long-range disorder (short-range order), metastable state, to some extent isotropic physical properties, no exact melting point, glass transition temperature point, etc., which has the characteristics of solid, metal, and glass. Under certain conditions, it has high strength, high hardness, plasticity, heat conduction and wear resistance.
  • the liquid metal referred to in the present invention is substantially solid at normal temperature, but some of its characteristics are close to liquid, so it is called liquid metal.
  • the liquid metal referred to in the present invention refers to heating the alloy to a molten state, and then cooling it at an ultra-fast cooling rate, so that the alloy crystal lattice solidifies before it can be arranged in order. Because it is in an amorphous state, like glass, it is also called liquid. Metal or metallic glass.
  • the characteristics of liquid metal are long-range disorder (short-range order), metastable state, to some extent isotropic physical properties, no exact melting point, glass transition temperature point, etc., which has the characteristics of solid, metal, and glass.
  • the liquid metal referred to in the present invention is substantially solid, except that some of its characteristics are close to liquid, so it is called liquid metal.
  • the supporting layer 13 may be a metal thin plate made of stainless steel or the like, and is also referred to as a supporting metal sheet.
  • the sliding layer 12 is located between the flexible display screen 200 and the supporting layer 13.
  • the holding member 43 is fixed to the sliding layer 12 and passes through the supporting layer 13 to connect with the positioning member 32 provided in the hinge 30. Specifically, the holding member 43 may be fixed to the sliding layer 12 by welding or adhesive.
  • the support layer 13 is provided with a first through hole 131 for the holder 43 to pass through.
  • the sliding layer 12 may also be considered as a part of the bonding layer 10, and the support layer 13 does not belong to the part of the bonding layer 10, but belongs between the bonding layer 10 and the hinge 30. Another layer of structure. In this case, both the connection surface 11 and the bonding surface 101 are located on the sliding layer 12.
  • the holding member 43 includes a connection end 41.
  • the connection end 41 is fixedly connected to the sliding layer 12, and the first through hole 131 receives the connection end 41.
  • the connection end 41 may also be a liquid metal or a conventional metal, and is consolidated with the sliding layer 12 by welding or gluing.
  • a solid metal is used as the support layer 13.
  • the connection end 41 is lower than the support layer 13 in a direction toward the hinge 30.
  • connection end 41 is accommodated not only in the support layer 13 in the peripheral direction, but also in the support layer 13 in the height direction.
  • the sliding layer 12 and the hinge 30 may also be displaced due to different bending radii. If the displacement is compensated only by the elastic deformation between the holding member 43 and the supporting layer 13, it may cause certain damage to the holding member 43 or the supporting layer 13. For this reason, a first gap 01 is left between the inner wall of the first through hole 131 and the connection end 41.
  • the first gap 01 can provide a displacement space of the connecting end 41 relative to the first through hole 131 during the bending of the hinge 30 to compensate the displacement amount.
  • the bending section 202 is located at the position with the largest bending radius.
  • the first gap 01 in the first direction 001 only needs to be located relatively to the side of the connection end 41 to achieve displacement. make up.
  • the bending section 202 may be located at a position with the smallest bending radius, that is, the flexible display screen 200 is bent inward.
  • the inner wall of the first through hole 131 needs to be provided with a gap 01 on the other side of the first direction 001 with respect to the connection end 41 in order to provide effective displacement compensation for the support layer 13 and the connection end 41.
  • connection end 41 may also be disposed on a surface of the support layer 13 facing away from the flexible display screen 200, that is, the bonding layer 10 faces away from the connection surface 11 of the flexible display screen 200.
  • the connection end 41 is fixedly connected to the connection surface 11 by welding or gluing.
  • the hinge 30 needs to provide a storage space for the connection end 41 and the fixing member 43 is received in the hinge 30.
  • the hinge 30 is provided with a notch 33 on the side facing the bonding layer 10.
  • the notch 33 is used to receive the connection end 41, and the notch 33 is provided with a fourth relative to the connection end 41 in the first direction 001.
  • the gap 04 and the fourth gap 04 are displacement compensation between the hinge 30 and the connecting end 41 received in the gap 33.
  • the hinge 30 includes a plurality of hinged links 31.
  • a plurality of hinged links 31 are arranged side by side in a second direction 002 perpendicular to the first direction 001 (refer to FIG. 8 at the same time), and the second direction 002 is parallel to the bonding surface 101 so that the first direction 001 and the first direction 001 Both directions 002 provide supporting force to the bonding layer 10.
  • each chain link 31 cooperates with at least one connecting member 40, so that each chain link 31 can support and bend together with the connecting member 40 when the flexible display screen 200 is bent.
  • Paragraph 202 is shown in FIG. 3, and the hinge 30 includes a plurality of hinged links 31.
  • a plurality of hinged links 31 are arranged side by side in a second direction 002 perpendicular to the first direction 001 (refer to FIG. 8 at the same time), and the second direction 002 is parallel to the bonding surface 101 so that the first direction 001 and the first direction 001 Both directions 002 provide supporting force to the
  • each positioning member 32 is distributed on each chain link 31, and each positioning member 32 corresponds to the position of a holding member 43.
  • the link 31 positions the bonding layer 10 through the cooperation of the positioning member 32 and the holding member 43. Relative distance from the hinge 30.
  • the holding member 43 includes a holding end 42 opposite to the connection end 41 (see FIG. 6).
  • the holding end 42 is provided with a sliding groove 421.
  • the positioning member 32 includes a slider 321 that cooperates with the sliding groove 421.
  • the slider 321 is placed in the sliding groove 421 for positioning and can slide relative to the sliding groove 421.
  • the chute 421 includes an extending section 4211 and a limiting section 4212.
  • the extension section 4211 is connected between the connecting end 41 and the limiting section 4212.
  • the limiting section 4212 provides a limiting surface 4213.
  • the slider 321 is in contact with and cooperates with the limiting surface 4213 to provide a pulling force for the holding member 43 toward the hinge 30. It can be understood that the slider 321 can be integrally connected with the chain link 31, thereby simplifying the structure.
  • the slider 321 may also be connected to the holding end 42 through the chain link 31 independently of the chain link 31 as shown in FIG. 6. A similar design will not affect the implementation of the solution of the support mechanism 100 of the present application, and the connection between the sliding slot 421 and the slider 321 can be matched according to specific structural requirements.
  • the holding end 42 may be L-shaped in cross section as shown in FIG. 5, or may be T-shaped in cross section as shown in FIG. 6. It can be understood that when the cross-section of the holding end 42 is T-shaped, the cooperation of the sliding groove 421 and the slider 321 can simultaneously adapt to the inward bending and the outward bending of the flexible display screen 200, and both the slider 321 and the limit can be guaranteed.
  • the limiting surface 4213 of the holding end 42 should be arranged parallel to the bonding surface 101 to facilitate the insertion of the slider 321 and the slider 321 in the second direction 002 during the bending of the flexible display 200.
  • the contact with the limiting surface 4213 can be evenly made, and the force of the bonding layer 10 is more balanced.
  • the second gap 02 is left in the cooperation between the sliding groove 421 and the slider 321.
  • the second gap 02 can provide a displacement space of the slider 321 relative to the sliding groove 421.
  • the second gap 02 should be disposed on both sides of the slider 321 in the first direction 001, so as to adapt to the bending action of the flexible display 200 in different directions.
  • the chain link 31 is provided with a second through hole 311 at a position corresponding to the holding end 42.
  • the positioning member 32 extends into the second through hole 311 and is screwed with the holding end 42.
  • the positioning member 32 may be a bolt 322, and the holding end 42 includes a screw hole 422 that cooperates with the bolt 322.
  • the holding end 42 extends into the second through hole 311 and is threadedly connected with the bolt 322, thereby realizing the holding member 43 and the positioning member.
  • Positioning of 32 may also be provided in a shape of a screw hole, the holding end 42 is a screw matching the screw hole, and the holding end 42 passes through the second through hole 311 to achieve a screw connection with the positioning member 32.
  • a third gap 03 is left between the inner wall of the second through hole 311 and the holding end 42, and between the inner wall of the second through hole 311 and the positioning member 32.
  • the third gap 03 is used to provide a displacement space of the inner wall of the second through hole 311 relative to the holding end 42 and the second through hole 311 relative to the positioning member 32.
  • the holding end 42 is a screw hole 422
  • the third gap 03 is a gap between the inner wall of the second through hole 311 and the holding end 42; when the positioning member 32 is a screw hole structure, the third gap 03 is a second through hole 311 The gap between the inner wall of the bracket and the positioning member 32.
  • the third gap 03 should be disposed on both sides of the positioning member 32 or the holding end 42 in the first direction, and should be adapted to the bending action of the flexible display 200 in different directions.
  • the chain link 31 includes a plane 312 facing away from the bonding layer 10.
  • An inner wall of the second through-hole 311 meets the plane 312 to form an opening 313.
  • the positioning member 32 includes a holding end 323 away from the holding member 43.
  • the clamping end 323 is clamped on the flat surface 312 to provide support for the positioning member 32, so as to provide the holding member 43 with a pulling force in the direction of the hinge 30.
  • the projection of the holding end 323 on the opening 313 needs to be at least partially beyond the opening 313 to ensure that there is an effective contact surface between the holding end 323 and the plane 312 to provide a pulling force.
  • the positioning member 32 and the plane 312 are repeatedly rubbed and squeezed.
  • the prolonged friction and squeezing action may easily cause the abrasion of the positioning member 32 or the plane 312, and then affect the positioning effect of the positioning member 32.
  • an elastic washer 314 is provided between the holding end 323 and the plane 312 to reduce friction between the holding end 323 and the plane 312 and provide cushioning.
  • the hinge 30 is located in the bearing layer 20, and the side of the bearing layer 20 remote from the bonding layer 10 may be provided with other structures such as the back shell 50.
  • the holding end 323 may interfere with the remaining structure of the bearing layer 20.
  • the plane 312 is set to be recessed inside the link 31 so that the holding end 323 is at least partially received inside the link 31.
  • the holding end 323 is completely contained inside the chain link 31, and friction between the holding end 323 and other structures can be completely avoided.
  • FIG. 8 is a schematic development view of the bonding layer 10 in this embodiment, and an observation direction is a direction in which the carrier layer 20 faces the flexible display screen 200.
  • the axes 315 of the plurality of chain links 31 extend along the second direction 002, and the second direction 002 is perpendicular to the first direction 001.
  • each link 31 is provided with a plurality of positioning members 32 along a respective axis 315. It can be understood that the number of the positioning members 32 on the single chain link 31 is the same as the number of the holding members 43 matched with the single chain link 31.
  • each positioning member 32 cooperates with a holding member 43 respectively, so as to strengthen the connection strength between the single chain link 31 and the bonding layer 10 in the second direction 002, and avoid the flexible display screen 200 in the The second direction 002 is lifted due to uneven force.
  • the positioning members 32 on two adjacent chain links 31 are staggered along the first direction 001. That is, any one positioning member 32 on each link 31 is staggered from the positioning member 32 on an adjacent link 31 in the first direction 001.
  • the first through holes 131 on the support layer 13 are also arranged in a staggered shape along the first direction 001. . Such a design will make the distance between adjacent openings on the support layer 13 larger, and two adjacent first through holes 131 in the first direction 001 will not be located on the same extension line.
  • the dispersed arrangement of the first through holes 131 on the support layer 13 is beneficial to improve the strength of the support layer 13 itself, avoid the stress concentration phenomenon caused by too close openings, extend the service life of the support layer 13, and improve the application. Reliability of the support mechanism 100.
  • the retaining member 43 and the positioning member 32 on one chain link 31 are used to lock the sliding layer 12 and the hinge, the retaining member 43 and the positioning member 32 on an adjacent chain link may be used to lock and support Layer 13 with hinge 30. Therefore, through this alternately distributed locking structure, the overall holding force is more evenly distributed, avoiding excessive local stress.
  • the bending section 202 can be arbitrarily set at The proportion of the total length of the flexible display 200 in one direction 001.
  • the flexible display screen 200 can have one end as a non-bend section 203 and the other end as a bend section 202, thereby forming a flexible display screen 200 that can be curled on one end; the flexible display 200 can also have both ends
  • the bending section 203, the non-bending section 203 at both ends are connected by a bending section 202 in the middle to form a foldable flexible display screen 200 (as shown in FIG. 1); there is still another embodiment in which the flexible display screen 200 is at the first In the direction 001, all the bending segments 202 are formed, and the entire flexible display screen 200 forms a flexible display screen 200 in the form of a roll because of the reliable support of the support mechanism 100 of the present application.
  • the flexible display screen 200 equipped with the supporting mechanism 100 of the present application can achieve rich display effects.
  • the flexible display 200 when the flexible display 200 is driven to bend, the flexible display 200 may be located on the side with a larger bending radius or on the side with a smaller bending radius. At this time, two adjacent links 31 in the hinge 30 need to be able to achieve relative rotation in a clockwise or counterclockwise direction.
  • the hinge 30 may also use a hinge with a self-positioning function, and with the effective support of the support mechanism 100 of the present application, the flexible display 200 may be bent into a shape similar to S, and further, wave-shaped bending may be realized.
  • the flexible display 200 is located within the outline of the bonding layer 10 or is flush with the bonding layer 10. Therefore, the bonding layer 10 can always support the entire flexible display screen 200 during the bending process of the flexible display screen 200. Further, the length of the carrier layer 20 is greater than the length of the bonding layer 10, and the carrier layer 20 accommodates the bonding layer 10 in the first direction 001. Since the bonding layer 10 is relatively thin compared to the carrier layer 20, the bonding layer 10 is adapted to be bonded to the flexible display screen 200 during the bending process, thereby supporting the flexible display screen 200.
  • the supporting layer 20 is relatively thick, and the rigidity of the supporting layer 20 is relatively large, which can provide sufficient supporting force for the bonding layer 10 to support the flexible display screen 200. Further, the load-bearing layer 20 can also play a role of providing rigid support for the entire flexible display screen 200 to avoid deformation of the flexible display screen 200 when subjected to external forces.
  • the carrier layer 20 accommodates the bonding layer 10 in the first direction 001
  • the opposite sides of the carrier layer 20 along the first direction 001 are respectively connected and fixed to the opposite sides of the bonding layer 10, thereby displaying the bonding layer 10 and the flexible display.
  • the screen 200 achieves complete containment and protection.
  • the bonding layer 10 includes a first end 14 in a first direction 001
  • the carrier layer 20 includes a second end 21 in the first direction 001
  • the first end 14 and the second end 21 are in the first direction 001
  • the upper side is located on the same side with respect to the hinge 30.
  • the first end 14 and the second end 21 are in contact with and fixed, and the second end 21 needs to be set to be elastically slidable in the first direction 001.
  • the bearing layer 20 includes a connecting portion 22, a telescopic portion 23, and a traction portion 24 at the second end 21.
  • the connection portion 22 is fixedly connected to the first end 14, the traction portion 24 is connected to the hinge 30, and the telescopic portion 23 is elastically connected between the traction portion 24 and the connection portion 22.
  • the traction portion 24 is provided with a guide rail 241 extending along the first direction 001
  • the connecting portion 22 is a guide block 221 that cooperates with the guide rail 241
  • the telescopic portion 23 is an elastic member.
  • the traction portion 24 at the second end 21 is a fixed and inflexible structure, so as to provide a fixed shape guide rail 241.
  • the guide block 221 moves freely in the guide rail 241 along the first direction 001 following the bending of the bending section 202 (see FIG. 10), thereby compensating the length displacement of the flexible display screen 200 relative to the supporting mechanism 100.
  • the telescopic portion 23 is an elastic member, such as a spring, the displacement of the guide block 221 always keeps the tendency to return to its original state under the elastic traction, so that the flexible display screen 200 can return to the original position in the state of being unfolded and unfolded.
  • the telescopic portion 23 includes a plurality of supporting rods 231 elastically connected in a first direction 001. Specifically, the plurality of support rods 231 are parallel to the bonding surface 101, and the plurality of support rods 231 are perpendicular to the first direction 001. Two adjacent support rods 231 are connected by at least one spring 232, and the direction of the spring force of the spring 232 Parallel to the first direction 001.
  • FIG. 11 is a schematic diagram of the unfolded state of the supporting mechanism 100. It can be seen that the plurality of supporting rods 231 are arranged at equal distances due to the action of the spring 232.
  • the total telescopic distance of the telescopic section 23 is the same as the total telescopic distance of the embodiment in which the telescopic section 23 is a single elastic member.
  • the equidistantly arranged support rods 231 can achieve a better support effect on the bonding layer 10 within the range of the “displacement difference P” between the flexible display screen 200 and the carrying layer 20.
  • the sliding of the guide block 221 causes the bonding layer 10 to receive no support within the range of “displacement difference P”, and the bonding layer 10 is in a suspended state.
  • the flexible display screen 200 corresponding to the range of the “displacement difference P” has poor rigidity due to lack of support, and is easily damaged under the impact of external force.
  • the support for the bonding layer 10 is more uniform within the range of the "displacement difference P"
  • the suspended portion of the flexible display screen 200 is changed from a large section to Several equidistantly distributed small sections, so the stiffness is increased, and it is not easy to be damaged by external forces.
  • FIG. 11 can be combined with various structural combinations of the connecting portion 22 and the traction portion 24, and is not limited to the implementation of the guide rail 241 and the guide block 221.
  • the connecting portion 22 and the traction portion 24 are both straight structures, and the telescopic portion 23 composed of a plurality of support rods 231 and the spring 232 is connected to the connecting portion 22 and the traction portion 24 respectively, and the above implementation can also be achieved. Example to achieve the effect.
  • the telescopic portion 23 is maintained to extend only in the first direction 001, and the adjacent rods 231 may also be movably connected through a link structure.
  • the structure of the support layer 13 in the two embodiments is different. Because the two sides of the support layer 13 are respectively attached to the sliding layer 12 and the bearing layer 20 for support, during the telescopic compensation process of the connecting portion 22, the supporting layer 13 can be divided into a fixed portion 131 and a sliding portion as in the embodiment of FIG. 132, wherein the fixing portion 131 is fixed on the hinge 30 and can slide relative to the sliding layer 12, and the sliding portion 132 is fixed on the connecting portion 22 and telescopically compensates along with the connecting portion 22.
  • the supporting layer 13 can also be as shown in FIG. 11. The entire section of the supporting layer 13 is a fixed structure. The entire section of the supporting layer 13 is connected to the sliding layer 12. The connecting portion 22 slides relative to the supporting layer 13 to provide support to the bonding layer 10. Both embodiments can be applied to the support mechanism 100 of the present application.
  • the flexible display 200 includes a first fixed section 2031 and a second fixed section 2032, and the bending section 202 is connected between the first fixed section 2031 and the second fixed section 2032.
  • the traction portion 24 also includes a first connection plate 242 and a second connection plate 243, and the first connection plate 242 and the first fixing section 2031 are located on the same side of the hinge 30 in the first direction 001.
  • the flexible display screen 200 is foldable, and the user can expand the flexible display screen 200 when observing the display.
  • the observation area of the flexible display screen 200 is larger, which is convenient for providing more screen information.
  • the user can fold the flexible display 200 while carrying it.
  • the flexible display 200 occupies a smaller area and is convenient to carry.
  • the supporting mechanism 100 further includes a back shell 50.
  • the back shell 50 is located on a side of the supporting layer 20 away from the bonding layer 10 and is used to cover and seal the supporting layer 20. It can be understood that because the bearing layer 20 is provided with the hinge 30, the supporting mechanism 100 makes the overall appearance not uniform. After the back shell 50 is added, the back shell 50 can cover many structural components located in the bearing layer 20, so that the appearance consistency of the supporting mechanism 100 is better. Correspondingly, the back shell 50 needs to be provided with a flexible section 51. The position of the flexible section 51 corresponds to the position of the hinge 30.
  • the flexible section 51 is made of a bendable material, or a bendable internal connection mechanism is provided, and the flexible section 51 can be adaptively deformed with the bending of the hinge 30 to ensure that the back shell 50 covers and seals the internal structure of the bearing layer 20. It can be understood that the back shell 50 can also cover and seal the carrier layer 20 and the bonding layer 10 at the same time.
  • the present application also relates to a flexible display device 300 including the above-mentioned support mechanism 100 and a flexible display screen 200.
  • the supporting mechanism 100 needs to be disposed on the back of the flexible display screen 200.
  • the flexible display device 300 has better consistency and support strength during the bending process with the cooperation of the support mechanism 100 and the flexible display screen 200, and avoids the flexible display caused by different bending radii. 200 caused a bad phenomenon such as lifting up from the support mechanism 100, so the flexible display device 300 of the present application can obtain higher reliability and bending ability, and also obtain a higher yield in the production process.
  • the screen assembly 400 involved in the present application includes a flexible display 200, a sliding layer 12 fixedly attached to the back 201 of the flexible display 200, a deformation mechanism 70 supporting the sliding layer 12, and a connecting member 40.
  • the connecting member 40 generates a force that pulls the sliding layer 12 and the deformation mechanism 70 closer to each other, so that the sliding layer 12 and the deformation mechanism 70 are kept close to each other.
  • the deformation mechanism 70 may use the above-mentioned support mechanism 100 and utilize the hinge 30 to complete the bending action.
  • the deformation mechanism 70 can also implement a bending action by using a mechanism such as an elastic band as in the embodiment of FIG. 13.
  • the positioning member 32 in the connecting member 40 is disposed on the deforming mechanism 70 to cooperate with the holding member 43 connected to the sliding layer 12 to achieve the close proximity of the sliding layer 12 and the deforming mechanism 70.
  • the flexible display 200 includes a bendable bending section 202, and the sliding layer 12 slides relative to the deformation mechanism 70 when the bending section 202 is bent. It can be understood that due to the difference in the radius of the flexible display screen 200, the sliding layer 12, and the deformation mechanism 70 during the bending process, the sliding layer 12 and the deformation mechanism 70 will be displaced. By the sliding arrangement of the sliding layer 12 and the deformation mechanism 70, deformation of the sliding layer 12 due to the difference in displacement can be avoided.
  • the connecting member 40 needs to be located at least within the contour range of the bending section 202. Furthermore, when the bending section 202 is bent, the sliding layer 12 and the deformation mechanism 70 can be held in the bending section 202 to prevent the flexible display screen 200 from being lifted relative to the sliding layer 12 or the deformation mechanism 70.
  • the retaining member 43 and the positioning member 32 are arranged at two ends of the connecting member 40, the retaining member 43 is fixed to the sliding layer 12, and the positioning member 32 opposite to the retaining member 43 is connected to the deformation mechanism 70. It can be understood that a gap may be formed between the connecting member 40 and the deformation mechanism 70 to facilitate sliding of the connecting member 40 relative to the deformation mechanism 70.
  • the sliding layer 12 slides relative to the deformation mechanism 70 toward the first direction 001.
  • the screen assembly 400 of the present application is arranged with a plurality of connecting members 40 along the first direction 001.
  • FIG. 14 is a schematic diagram when the bending section 202 is bent.
  • the width of the gap between the connecting member 40 and the deformation mechanism 70 gradually increases along the first direction 001.
  • the connecting member 40 includes a holding member 43 fixed to the sliding layer 12 and a positioning member 32 connected to the deformation mechanism 70, the holding member 43 and the positioning member 32 are connected to each other.
  • the positioning member 32 is fixed relative to the deformation mechanism 70 and the holding member 43 is slidably connected to the positioning member 32 (see FIG. 5).
  • the positioning member 32 is slidingly connected to the deformation mechanism 70, and the holding member 43 is fixedly connected to the positioning member 32 (see FIG. 7).
  • the screen assembly 400 further includes a supporting layer 13 disposed below the sliding layer 12.
  • the supporting layer 13 is located between the sliding layer 12 and the deformation mechanism 70 and is used to carry the sliding layer 12. It can be understood that the elastic modulus of the supporting layer 13 needs to be lower than the elastic modulus of the sliding layer 12, and the hardness of the supporting layer 13 is also higher than the hardness of the sliding layer 12 in order to provide a better supporting effect.
  • the sliding layer 12 is a liquid metal layer
  • the support layer 13 is a steel sheet.
  • the difference between the elastic modulus of the support layer 13 and the flexible display screen 200 is set to be greater than the difference between the elastic modulus of the sliding layer 12 and the flexible display 200.
  • the holding member 43 may be fixed on the sliding layer 12, and then connected to the deformation mechanism 70 through the supporting layer 13.
  • the holder 43 may also be directly fixed on the support layer 13 and then connected to the deformation mechanism 70.
  • the flexible display 200 involved in this application may be a flexible touch screen or a flexible display, including but not limited to a Liquid Crystal Display (LCD) panel, a Quantum Dot Light Emitting Diodes (QLED) panel, an electronic paper (E) -paper (Display, EPD), touch panel (Touch panel), flexible solar cell (Page View, PV) board, radio frequency tag (Radio Frequency Identification) products or components with display functions.
  • the flexible display device 300 and the screen assembly 400 involved in this application can also be equipped in mobile phones, tablet computers, displays, liquid crystal panels, OLED panels, televisions, smart watches, VR head-mounted displays, car displays, etc. Functional products and parts.

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Abstract

本申请涉及一种柔性显示屏的支撑机构,所述柔性显示屏包括弯折段，所述支撑机构包括层叠于所述柔性显示屏背面的贴合层和承载层，所述承载层设有与所述弯折段对应的铰链。所述支撑机构还包括设置于所述贴合层上的连接件，所述连接件与所述铰链配合，以保持所述贴合层与所述铰链之间的相对距离。在所述柔性显示屏弯折或展开的过程中，所述连接件通过与所述铰链的配合而始终保持所述贴合层与所述铰链之间的相对位置，使得所述弯折段始终处于受支撑状态，所述柔性显示屏不易折损。本申请还涉及装备所述支撑机构的柔性显示装置，以及一种屏幕组件。

Description

支撑机构、柔性显示装置及屏幕组件 技术领域
本申请涉及柔性显示技术领域，尤其涉及一种可弯折柔性显示屏支撑机构以及柔性显示装置、屏幕组件。
背景技术
随着显示技术的发展，消费者对于显示装置的显示方式、显示效果等需求越来越多样化、个性化。柔性显示屏相对于传统的显示装置而言，具有可弯折和可拉伸等优点，广泛地受到消费者的青睐。
现有的柔性显示装置将柔性显示屏与支撑件贴合固定，并通过铰链实现柔性显示屏的弯折。然而，柔性显示装置在受外力挤压时，支撑件在弯折区容易与铰链的链条分离而拱起，进而造成柔性显示屏损坏失效。
发明内容
本申请提出一种本申请提供一种不易损坏的柔性显示屏支撑机构，在柔性显示屏弯折时能提供更贴合的支撑。本申请支撑机构包括如下技术方案：
一种支撑机构，用于支撑柔性显示屏，所述柔性显示屏包括：
贴合层，包括相背设置的贴合面和连接面，所述贴合面用于贴合柔性显示屏；
承载层，支撑所述贴合层，且位于所述连接面所在的一侧，所述承载层包括用于带动所述贴合层弯折的铰链；和
连接件，连接在所述铰链和所述贴合层之间，以使所述贴合层与所述铰链在垂直于所述贴合面的方向上相对距离固定。
本申请还涉及一种柔性显示装置，包括上述支撑机构和柔性显示屏，所述支撑机构设置在所述柔性显示屏的背面。
本申请涉及一种屏幕组件，包括柔性显示屏、固定贴合于柔性显示屏背面的滑动层、支撑滑动层的形变机构及连接件，所述连接件产生将所述滑动层与所述形变机构相互拉近的作用力而使所述滑动层与所述形变机构保持相互靠近的状态。
本申请所述支撑机构贴附于所述柔性显示屏的背面，以实现对所述柔性显示屏的支撑。所述柔性显示屏包括弯折段，所述支撑机构设有铰链与所述弯折段进行配合，且所述铰链位于所述支撑机构的承载层，所述柔性显示屏与所述承载层之间还设有一贴合层。所述贴合层可保护所述柔性显示屏在展开和弯折的状态下免受摩擦。所述铰链用于实现所述支撑机构随所述弯折段的弯折动作。所述支撑机构还通过设置于所述贴合层上的固持件与所述铰链配合，来保持与所述铰链在垂直于所述贴合面的方向上相对距离固定。在所述柔性显示屏弯折的过程中，所述柔性显示屏始终贴合于所述贴合层，且所述贴合层始终与所述铰链发生配合，避免了所述弯折段与所述铰链的分离。也因为所述柔性显示屏 始终处于被支撑状态，使得装备了所述柔性显示屏的柔性显示装置更加牢固，不易受损。
本申请所述屏幕组件，通过所述连接件拉近并保持所述滑动层以及所述形变机构之间的距离，使得所述屏幕组件在弯折的过程中始终保持所述形变机构对所述滑动层的支撑，进而通过所述滑动层贴合所述柔性显示屏。本申请所述屏幕组件因此在弯折过程中各结构层之间的连接更稳定，避免了所述柔性显示屏弯折过程中翘起等缺陷。
附图说明
图1是本申请支撑机构展开状态的示意图；
图1a是图1的细节放大图；
图2是图1弯折后的示意图；
图3是本申请所述弯折段的细节示意图；
图4是图3弯折后的示意图；
图5是本申请固持件与定位件配合一种实施例的示意图；
图6是图5在另一实施例中的示意图；
图7是图5在再一实施例中的示意图；
图8是图1的背面结构示意图；
图9是图1另一实施例的示意图；
图10是图9弯折后的示意图；
图11是图9另一实施例的示意图；
图12是图9再一实施例的示意图；
图13是本申请屏幕组件展开状态的示意图；
图14是图13弯折后的示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其它实施例，都属于本申请保护的范围。
请参阅图1所示的支撑机构100，设置于柔性显示屏200的背面201。支撑机构100包括层叠的贴合层10和承载层20，贴合层10和承载层20的层叠方向与支撑机构100层叠于柔性显示屏200的方向相同。其中贴合层10包括相背设置的贴合面101及连接面11，贴合面101与背面201接触。承载层20支撑所述贴合层10，且位于所述连接面11所在的一侧，即，承载层20位于贴合层10远离柔性显示屏200的一侧。也即贴合层10位于柔性显示屏200与承载层20之间。贴合面10的延伸方向为第一方向001，柔性显示屏200在第一方向001上包括弯折段202。可以理解的，弯折段202可以弯折，使得柔性显示屏200做出折叠、卷曲等形变，进而改变柔性显示屏200的空间姿态，可以达到诸如特殊 的显示效果或便于收纳携带等优点。作为柔性显示屏200的支撑，支撑机构100需要随柔性显示屏200的弯折而发生相应的形变。在本申请支撑机构100中，贴合层10可以随柔性显示屏200任意弯折，承载层20则通过带动贴合层10弯折的铰链30来实现整个支撑机构100的弯折能力。具体的，承载层20在对应弯折段202的位置处设有铰链30，铰链30的弯折方向和可弯折角度决定了弯折段202的弯折程度。支撑机构100还包括连接件40，连接件40连接于铰链30和贴合层10之间，在图1的实施例中，连接件40设置于贴合层10朝向承载层20的连接面11上。连接件40与铰链30在垂直于贴合面101的方向上相互固持，以保持贴合层10与铰链30之间的相对距离固定。
请参阅图2，支撑机构100在随柔性显示屏200一同弯折的过程中，因为支撑机构100及柔性显示屏200均具备一定的厚度，因此二者的弯折半径会产生差异。在图2实施例中柔性显示屏200位于弯折半径更大的一侧，相较于图1的状态，柔性显示屏200在第一方向001上会相对支撑机构100发生一定的位移。现有技术中，整个柔性显示屏200是多个结构层通过光学双面胶粘合起来形成的物理叠层，且该物理叠层的弯折半径及弯折寿命跟叠层的层数及厚度有非常大的相关性。整个柔性显示屏200贴合到整机上时弯折段202往往无法直接与整机支撑装置全贴合固定，否则会出现弯折段202在弯折过程中物理中性面的转移，造成较脆弱的柔性显示屏200发生拉裂或损坏等不良后果。另一方面，如果弯折段202因为叠层结构不同，造成各个柔性显示屏200的层厚存在偏差，在整机弯折和展平过程中容易出现弯折段202起翘的风险，柔性显示屏200难以实现大规模产品化。而本申请支撑机构100，贴合层10与柔性显示屏200的弹性模量相近，二者在弯曲时发生的拉伸情况也较为接近，而不会出现拉伸程度不一致造成的柔性显示屏损坏的问题。因此，本申请的贴合层10与柔性显示屏200可完全贴合形成一体，在柔性显示屏200在反复弯折时，与柔性显示屏200对应的贴合层10可以保持与弯折段202的接触，对弯折段202形成可靠的支撑。优选地，本实施例采用铁基或镍基的液态金属作为贴合层10与柔性显示屏200贴合固定。此外，贴合层10朝向承载层20的连接面11上设有连接件40，连接件40与铰链30相互固持，贴合层10在连接件40的作用下始终受到朝向铰链30的拉力，贴合层10与铰链30之间的相对位置得以被固定。这样的设置避免支撑机构100的相对两端受到挤压时，贴合层10与铰链30分离而发生不可控的起翘的缺陷。
需要提出的是，在图1和图2的实施例中，铰链30与贴合层10直接接触，以对贴合层10提供直接的支撑。但在其余一些实施例中，铰链30也可以与贴合层10之间架空，即二者之间设有间隙，或者二者之间设有其它的连接件，铰链30与贴合层10之间的固持通过连接件40来实现，即铰链30通过连接件40来实现对贴合层10的支撑，同样可以实现本申请技术方案所要达到的技术效果。
图1a为铰链30位置的放大图，从图1a的实施例可看出，连接件40包括有连接于贴合层10的固持件43和连接于铰链30的定位件32。在第一方向001上，连接件40相对于铰链30具有滑移空间，即连接件43通过固持件43和定位件32的配合可滑动地连接在铰链30和贴合层10之间。这样可以在贴合面10 与铰链30之间位移较大时，避免只通过连接件40与铰链30之间的弹性变形来补偿位移，进而保护本申请支撑机构100的结构刚度和稳定性。换句话说，贴合面10与铰链30并未完全固定住，而是在弯折段202具有一定滑动空间，使得在弯折段202弯折时贴合面10可相对铰链30滑动，以此来避免柔性显示屏20的弯折段202出现被铰链30拉伸的情况。
贴合层10可以是整体成型的结构层，也可以由多层结构层层叠构成。一种实施例见图3，图3为弯折段202处的细节示意图。为了实现贴合层10与柔性显示屏200的贴合支撑功能，贴合层10设有滑动层12和支撑层13。滑动层12通常为镍基或铁基等材质的液态金属，其弹性模量和拉伸强度能够适应柔性显示屏200的弯折拉伸，实现全方位的贴合。优选地，本实施例采用液态金属作为滑动层12的材料。所述液态金属为常温呈固态的非晶合金。本发明所称液态金属是指将合金加热到熔融态，然后以超快的冷却速度冷却，使合金晶格来不及有序排列结晶便固化，因为是非结晶状态，像玻璃，所以又被称为非晶合金、液态金属或金属玻璃。液态金属的特性是长程无序(短程有序)、亚稳态、一定程度上的物理特性各向同性、没有确切熔点、具有玻璃转化温度点等，具有固态、金属、玻璃的特性，可以在一定条件下具有高强度、高硬度、塑性、热传导和耐磨性等。也就是说，本发明所称的液态金属在常温实质上是固态的，只不过其某些特性接近液体，所以称之为液态金属。本发明所称液态金属是指将合金加热到熔融态，然后以超快的冷却速度冷却，使合金晶格来不及有序排列结晶便固化，因为是非结晶状态，像玻璃，所以又被称为液态金属或金属玻璃。液态金属的特性是长程无序(短程有序)、亚稳态、一定程度上的物理特性各向同性、没有确切熔点、具有玻璃转化温度点等，具有固态、金属、玻璃的特性，可以在一定条件下具有高强度、高硬度、塑性、热传导和耐磨性等。也就是说，本发明所称的液态金属实质上是固态的，只不过其某些特性接近液体，所以称之为液态金属。支撑层13可以为不锈钢等材质的金属薄板，也称为支撑金属片。滑动层12位于柔性显示屏200和支撑层13之间，固持件43固结于滑动层12，并穿过支撑层13与设置于铰链30中的定位件32发生连接配合。具体的，固持件43可以通过焊接或粘胶的方式与滑动层12进行固定。支撑层13上设有用于固持件43穿过的第一通孔131。当然，在其他的实施方式当中，也可以将滑动层12认为是贴合层10的一部分，而支撑层13不属于贴合层10的一部分，而是属于贴合层10与铰链30之间的另外一层结构。在这种情况下，连接面11及贴合面101均位于滑动层12上。
一种实施例继续参照图3，固持件43包括连接端41。连接端41与滑动层12固连，第一通孔131收容连接端41。连接端41同样可以为液态金属或常规金属，并通过焊接或粘胶的方式与滑动层12进行固结。通常的，对于铰链30与贴合层10相接触的实施例来说，由于液态金属本身硬度较低，并不足以支撑手指在柔性显示屏20上的按压，因此需要进一步增加一块硬度更高的固态金属作为支撑层13使用。连接端41在朝向铰链30的方向上，低于支撑层13。由此，连接端41不仅在四周方向上收容于支撑层13中，其在高度方向上也收容于支撑层13中。进一步的，参见图4，在铰链30弯折的过程中，滑动层12与铰链 30之间也会因为弯折半径不同而产生位移。如果只通过固持件43与支撑层13之间的弹性变形来补偿位移，可能会对固持件43或支撑层13造成一定的损害。为此，在第一通孔131的内壁与连接端41之间留有第一间隙01。第一间隙01可以在铰链30弯折的过程中提供连接端41相对于第一通孔131的位移空间，补偿位移量。
可以理解的，在图4的实施例中，弯折段202位于弯折半径最大的位置，此时第一间隙01在第一方向001上只需要相对位于连接端41的一侧即可实现位移补偿。在另一些使用情况下，弯折段202可能位于弯折半径最小的位置，即柔性显示屏200向内弯曲。此时第一通孔131的内壁需要相对于连接端41在第一方向001的另一侧也设置间隙01，才能为支撑层13和连接端41提供有效的位移补偿。
另一种实施例参见图1，连接端41也可以设置于支撑层13背离柔性显示屏200的表面上，即贴合层10背离柔性显示屏200的连接面11。将连接端41通过焊接或粘胶的方式与连接面11固连，此时铰链30需要为连接端41提供收容空间，将固持件43收容于铰链30内。通过图1a可以看出，铰链30在朝向贴合层10一侧设有缺口33，缺口33用于收容连接端41，并使得缺口33在第一方向001上相对于连接端41设有第四间隙04，第四间隙04为铰链30和收容于缺口33内的连接端41之间位移补偿。
一种实施例见图3，铰链30包含多个相互铰接的链节31。多个相互铰接的链节31沿垂直于第一方向001的第二方向002上并排设置(需同时参阅图8)，第二方向002平行于贴合面101，从而在第一方向001和第二方向002上均对贴合层10提供支撑力。为了实现更好的限位和支撑作用，每个链节31都至少与一个连接件40配合，进而使得每一个链节31都能在柔性显示屏200弯折时与连接件40一同支撑弯折段202。具体的，每个链节31上至少分布有一个定位件32，每个定位件32与一个固持件43的位置对应，链节31通过定位件32与固持件43的配合来定位贴合层10与铰链30之间的相对距离。
对于固持件43与定位件32的配合，可以采用的方式较多。具体的，参见图5的实施例，固持件43包括与连接端41相对的固持端42(见图6)。当连接端41与滑动层12固连时，固持端42被设置滑槽421。定位件32包括与滑槽421配合的滑块321，滑块321置于滑槽421中定位，并可相对于滑槽421做滑动。滑槽421包括延伸段4211和限位段4212。延伸段4211连接于连接端41和限位段4212之间，限位段4212提供一限位面4213。滑块321与限位面4213接触并配合，为固持件43提供朝向铰链30的拉力。可以理解的，滑块321可以与链节31设置为一体连接，进而简化结构。
滑块321还可以如图6所示，独立于链节31之外，穿过链节31连接到固持端42处。类似的设计不会影响本申请支撑机构100的方案实施，可以根据具体的结构需求来对滑槽421与滑块321的连接进行搭配。
另一方面，固持端42可以如图5所示，截面为L形；也可以如图6所示，截面为T形。可以理解的，当固持端42的截面为T形时，滑槽421与滑块321的配合能够同时适应柔性显示屏200的向内弯折和向外弯折，都能保证滑块321 与限位面4213的接触面积。
需要提出的是，固持端42的限位面4213宜设置为平行于贴合面101，方便滑块321的插入，以及在柔性显示屏200弯折的过程中滑块321在第二方向002上可以均匀的与限位面4213发生接触，贴合层10的受力更均衡。
与上述相似的理由，请同时参看图5和图6，滑槽421和滑块321之间的配合留有第二间隙02。在铰链30随柔性显示屏200弯折的过程中，第二间隙02可以提供滑块321相对于滑槽421的位移空间。与第一间隙01的情况相似，第二间隙02在第一方向001上宜设置于滑块321的两侧，从而适应柔性显示屏200不同方向的弯折动作。
另一种实施例见图7，链节31在对应固持端42的位置设有第二通孔311。定位件32伸入第二通孔311与固持端42螺纹连接。可以理解的，定位件32可以为螺栓322，固持端42包含与螺栓322配合的螺孔422，固持端42伸入第二通孔311中与螺栓322螺纹连接，从而实现固持件43与定位件32的定位。当然，定位件32也可以被设置为螺孔形状，固持端42为与螺孔匹配的螺杆，固持端42穿过第二通孔311与定位件32实现螺纹连接。
同样的，第二通孔311的内壁与固持端42之间、以及第二通孔311内壁与定位件32之间留有第三间隙03。在铰链30随柔性显示屏200弯折的过程中，第三间隙03用于提供第二通孔311的内壁相对于固持端42、以及第二通孔311相对于定位件32的位移空间。固持端42为螺孔422时，第三间隙03为第二通孔311的内壁与固持端42之间的间隙；当定位件32为螺孔结构时，第三间隙03为第二通孔311的内壁与定位件32之间的间隙。相似的原理，第三间隙03在第一方向上宜设置于定位件32或固持端42的两侧，宜适应柔性显示屏200不同方向的弯折动作。
请继续参见图7，链节31包括背离贴合层10的平面312。第二通孔311的内壁与平面312交接形成开口313。定位件32包括远离固持件43的卡持端323。卡持端323卡持于平面312上，为定位件32提供支撑，得以对固持件43提供朝向铰链30方向上的拉力。为此，卡持端323在开口313上的投影需要至少部分超出开口313，保证卡持端323与平面312存在有效的接触面来提供拉力。
一种实施例，铰链30在随弯折段202反复弯折变形的过程中，定位件32与平面312会反复摩擦挤压。长时间的摩擦挤压作用容易造成定位件32或平面312的磨损，进而影响定位件32的定位效果。为此，在卡持端323与平面312之间设有弹性垫片314，用于减缓卡持端323与平面312之间的摩擦，提供缓冲。
铰链30位于承载层20中，承载层20远离贴合层10的一侧可能设有其余结构例如背壳50。当卡持端323伸出链节31时，卡持端323可能与承载层20的其余结构发生干涉摩擦。为此，一种实施例，将平面312设置为凹陷于链节31内部，以使得卡持端323至少部分收容于链节31的内部。当然，图7的实施例中卡持端323完全收容于链节31内部，可以完全避免卡持端323与其余结构的摩擦现象。
请参见图8，图8为贴合层10在本实施例下的展开示意图，观测方向为承载层20朝向柔性显示屏200的方向。在图8的实施例中，多个链节31的轴线 315均沿第二方向002延伸，第二方向002垂直于第一方向001。在第二方向002上，每个链节31均沿各自轴线315配合设多个定位件32。可以理解的，对于单个链节31上的定位件32，其数量与单个链节31所配合的固持件43的数量相同。即在单个链节31上，每一个定位件32各自与一个固持件43配合，从而在第二方向002上加强单个链节31与贴合层10之间的连接强度，避免柔性显示屏200在第二方向002上受力不均而翘起。
一种实施例，相邻两个链节31上的定位件32沿第一方向001交错设置。即每个链节31上的任意一个定位件32在第一方向001上均与相邻链节31上的定位件32错开设置。从图8可以看出，当相邻两个链节31上的定位件32沿第一方向001交错设置时，支撑层13上的第一通孔131也沿第一方向001呈交错的形状布置。这样的设计会使得支撑层13上的相邻开孔之间的距离更大，且在第一方向001上相邻的两个第一通孔131不会位于同一延长线上。第一通孔131在支撑层13上的分散排布，有利于提高支撑层13自身的强度，避免开孔过于聚拢而造成的应力集中现象，延长了支撑层13的使用寿命，提高了本申请支撑机构100的可靠性。
可以理解地，当一个链节31上的固持件43及定位件32用于锁固滑动层12与铰链时，相邻的一个链节上的固持件43及定位件32可以用来锁固支撑层13与铰链30。由此，通过这种交替分布的锁固结构，使得整体的固持力更加均匀的分布，避免局部受力过大。
对于柔性显示屏200，由于有了本申请支撑机构100的上述技术方案支持，只要弯折段202对应的位置处为铰链30和贴合层10配合提供支撑，可以任意设置弯折段202在第一方向001上与柔性显示屏200总长度的占比。即柔性显示屏200在第一方向001上可以一端为非弯折段203，另一端为弯折段202，进而形成一端可卷曲的柔性显示屏200；柔性显示屏200也可以两端均为非弯折段203，两端的非弯折段203中间由一段弯折段202连接，以形成可折叠式的柔性显示屏200(如图1)；还有一种实施方式，柔性显示屏200在第一方向001上全部为弯折段202，整个柔性显示屏200因为本申请支撑机构100的可靠支撑而形成卷轴式的柔性显示屏200。配合不同的显示图像设置，配备了本申请支撑机构100的柔性显示屏200可以实现丰富的显示效果。
另一方面，柔性显示屏200在带动支撑机构100弯折时，可以位于弯折半径较大的一侧，也可以位于弯折半径较小的一侧。此时铰链30内相邻两链节31需要能够实现正时针或逆时针双向的相对转动。铰链30还可以采用带自定位功能的铰链，配合本申请支撑机构100的有效支撑，柔性显示屏200可以弯折为类似S的形状，进一步的还可以实现波浪形弯折。
请看回图1，在第一方向001上，柔性显示屏200位于贴合层10的轮廓范围之内，或与贴合层10齐平。由此贴合层10可以在柔性显示屏200弯折的过程中始终对整个柔性显示屏200提供支撑。进一步的，承载层20的长度大于贴合层10的长度，且承载层20在第一方向001上收容贴合层10。由于贴合层10相对于承载层20较薄，贴合层10适于在弯折的过程中始终与柔性显示屏200贴合，进而支撑柔性显示屏200。而承载层20相对较厚，承载层20自身刚度较 大，得以为贴合层10提供足够的支撑力，从而支撑柔性显示屏200。进一步的，承载层20还可以起到为整个柔性显示屏200提供刚性支撑的作用，避免柔性显示屏200受外力时发生形变。在承载层20于第一方向001上收容贴合层10时，承载层20沿第一方向001的相对两边分别连接并固定于贴合层10的相对两边，从而对贴合层10和柔性显示屏200实现完全的收容和保护。
参见图9，贴合层10在第一方向001上包括第一端14，承载层20在第一方向001上包括第二端21，且第一端14和第二端21在第一方向001上相对于铰链30位于同一侧。第一端14和第二端21之间接触并固定，第二端21需要设置为沿第一方向001可弹性滑动。
一种实施例，承载层20在第二端21处包括连接部22、伸缩部23和牵引部24。其中连接部22与第一端14固定连接，牵引部24与铰链30连接，伸缩部23弹性连接于牵引部24和连接部22之间。
在图9的实施例中，牵引部24设有沿第一方向001延伸的导轨241，连接部22为与导轨241配合的导块221，伸缩部23为弹性件。可以理解的，位于第二端21处的牵引部24为固定不可弯折的结构，以便于提供形状固定的导轨241。而导块221随着弯折段202的弯折，沿第一方向001在导轨241中自由活动(见图10)，进而补偿柔性显示屏200相对于支撑机构100的长度位移。由于伸缩部23为弹性件，如弹簧等，导块221的位移始终在弹力牵引下保持恢复原状的趋势，使得柔性显示屏200在解除弯折并展开的状态下导块221可以恢复原位。
一种实施例见图11，伸缩部23包括多个沿第一方向001弹性连接的支杆231。具体的，多个支杆231平行于贴合面101，且多个支杆231均垂直于第一方向001，相邻两个支杆231之间通过至少一个弹簧232连接，弹簧232的弹力方向平行于第一方向001。图11为支撑机构100展开状态的示意图，可以看到因为弹簧232的作用，多个支杆231呈等距排列。伸缩部23的伸缩距离总和，同伸缩部23为单个的弹性件实施例的伸缩距离总和相同。但等距排列的支杆231，可以在柔性显示屏200相对于承载层20的“位移差P”范围内，对贴合层10实现更好的支撑效果。相对于图9的状态，导块221的滑移造成“位移差P”范围内贴合层10没有受到任何支撑，贴合层10处于悬空状态。此时“位移差P”范围所对应的柔性显示屏200因为缺乏支撑，刚度较差，在外力冲击下容易受损。而在本实施例中，因为多个支杆231的等距分布，在“位移差P”范围内对贴合层10的支撑更均匀，柔性显示屏200的悬空部分由一大段变成了若干等距分布的小段，因而刚度得以增加，不易因外力而遭受损害。
可以理解的，图11的实施例，可以配合多种连接部22和牵引部24的结构组合，并不限于导轨241和导块221的实施方式。在图12的实施例中，连接部22和牵引部24均为直板结构，由多个支杆231和弹簧232组成的伸缩部23分别与连接部22和牵引部24连接，同样可以达到上述实施例所要实现的效果。进一步的，为了限制相邻两支杆231之间的弹性连接自由度，保持伸缩部23仅沿第一方向001延伸，相邻的支杆231之间还可以通过连杆结构进行活动连接。
需要提出的是，对比图9和图11的两种实施例，支撑层13在两种实施例中的结构不同。因为支撑层13的两侧分别与滑动层12和承载层20贴合支撑， 在连接部22伸缩补偿的过程中，支撑层13可以如图9的实施例一样，分为固定部131和滑动部132，其中固定部131固定于铰链30上而可相对滑动层12滑动，滑动部132固定于连接部22上而随连接部22一同伸缩补偿。支撑层13也可以如图11所示，其整段为固定结构，整段支撑层13连接于滑动层12上，连接部22相对于支撑层13滑动，进而对贴合层10提供支撑。两种实施例均可应用于本申请支撑机构100中。
在图10的实施例中，柔性显示屏200包括第一固定段2031和第二固定段2032，弯折段202连接于第一固定段2031和第二固定段2032之间。相应的，在承载层20中，牵引部24也包括第一连接板242和第二连接板243，第一连接板242与第一固定段2031在第一方向001上位于铰链30的同一侧。此时柔性显示屏200呈可折叠状，用户在观测显示时可以将柔性显示屏200展开，此时柔性显示屏200的观测面积更大，便于提供更多的画面信息。用户在携带时可以将柔性显示屏200折叠，此时柔性显示屏200占用的面积更小，便于携带。
进一步地，在图10中，由于带有牵引部24的位移补偿机构是位于铰链30的左侧，在柔性显示屏200的弯折段202弯折过程中，弯折段202越靠近牵引部24的位置相对铰链30所移动的距离也越多，移动的距离同样体现在固持件43与定位件32上。即各固持件43与支撑层13之间靠近牵引部24的间隙01，沿着朝向牵引部24的方向，宽度逐渐减小。同样地，间隙02、03、04的宽度变化与间隙01的宽度变化相同。
在图1的实施例中，支撑机构100还包括背壳50。背壳50位于承载层20远离贴合层10的一侧，用于覆盖并密封承载层20。可以理解的，承载层20因为设有铰链30，支撑机构100使得在整体外观上不够统一。在加入背壳50后，背壳50可以遮盖位于承载层20内的众多结构件，使得支撑机构100的外观一致性更好。相应的，背壳50需要设置柔性段51，柔性段51的位置与铰链30的位置对应，柔性段51为可弯折的材料制成，或设有可弯折的内部连接机构，进而柔性段51能够随铰链30的弯折而产生适应性的形变，保证背壳50对承载层20内部结构的覆盖和密封。可以理解的，背壳50还可以同时覆盖并密封承载层20和贴合层10。
本申请还涉及包括上述支撑机构100和柔性显示屏200的柔性显示装置300。其中支撑机构100需要设置于柔性显示屏200的背面。可以理解的，柔性显示装置300在上述支撑机构100和上述柔性显示屏200的配合下，弯折过程中具备更好的一致性和支撑强度，避免了因为弯折半径不同而造成的柔性显示屏200从支撑机构100上翘起等不良现象，因而本申请柔性显示装置300得以获得更高的可靠性和弯折能力，在生产过程中也获得了更高的良品率。
参见图13和图14，本申请所涉及的屏幕组件400，包括有柔性显示屏200、固定贴合于柔性显示屏200背面201的滑动层12、支撑滑动层12的形变机构70及连接件40。连接件40产生将滑动层12与形变机构70相互拉近的作用力，进而使得滑动层12与形变机构70保持相互靠近的状态。需要提出的是，形变机构70可以采用上述的支撑机构100，利用铰链30来完成弯折动作。同时形变机构70也可以如图13的实施例一样，采用诸如弹性带等机构来实现弯折动作。 相应的，连接件40中的定位件32设置于形变机构70上，用以与连接于滑动层12的固持件43配合，来实现滑动层12与形变机构70的相互靠近。
一种实施例，柔性显示屏200包括可弯折的弯折段202，弯折段202弯曲时滑动层12相对形变机构70滑动。可以理解的，由于柔性显示屏200与滑动层12、形变机构70在弯折过程中的半径差，滑动层12会与形变机构70产生位移。通过滑动层12与形变机构70的滑动设置，可以避免因为位移差而造成的滑动层12形变。
连接件40需要至少位于弯折段202的轮廓范围内。进而在弯折段202弯折时能够对滑动层12与形变机构70在弯折段202内提供固持，避免柔性显示屏200相对于滑动层12或形变机构70翘起。如上述的实施例，固持件43和定位件32分列连接件40的两端，固持件43固定于滑动层12，与固持件43相对的定位件32连接于形变机构70。可以理解的，连接件40与形变机构70之间可以形成间隙，以便于连接件40相对形变机构70滑动。弯折段202在弯曲时滑动层12相对于形变机构70朝向第一方向001滑动，本申请屏幕组件400沿第一方向001排列有多个连接件40。
图14为弯折段202弯折时的示意图，从图14可以看出，连接件40与形变机构70之间的间隙的宽度沿着第一方向001逐渐增大。因为连接件40包括固定于滑动层12的固持件43及连接于形变机构70的定位件32，固持件43与定位件32相互连接。则相应的存在定位件32相对于形变机构70固定，固持件43与定位件32滑动连接的实施例(参看图5)。同样的，也存在定位件32滑动连接于形变机构70，固持件43与定位件32固定连接的实施例(参看图7)。
一种实施例，屏幕组件400还包括设于滑动层12下方的支撑层13，支撑层13位于滑动层12与形变机构70之间，用于承载滑动层12。可以理解的，支撑层13的弹性模量需要低于滑动层12的弹性模量，支撑层13的硬度也高于滑动层12的硬度，才能提供更好的支撑效果。一种实施例，滑动层12为液态金属层，支撑层13为钢片。进一步，为了使得支撑层13对滑动层12提供更贴合的支撑，设置支撑层13与柔性显示屏200的弹性模量之差大于滑动层12与柔性显示屏200的弹性模量之差。屏幕组件400在弯折的过程中，支撑层13始终与滑动层12贴合，且不会使得滑动层12与柔性显示屏200之间出现翘起的现象。
在图13和图14的实施例中，固持件43可以固定于滑动层12上，然后穿过支撑层13而连接于形变机构70。固持件43也可以直接固定于支撑层13上，然后连接于形变机构70。
本申请涉及的柔性显示屏200可以是柔性触摸屏或柔性显示屏，包括但不限于液晶显示(Liquid Crystal Display,LCD)面板、量子点显示(Quantum Dot Light Emitting Diodes,QLED)面板、电子纸(E-paper Display,EPD)、触摸屏(Touch panel)、柔性太阳能电池(Page View,PV)板、射频标签(Radio Frequency Identification,RFID)等具有显示功能的产品或部件。相应的，本申请涉及的柔性显示装置300以及屏幕组件400，也可以装备于手机、平板电脑、显示器、液晶面板、OLED面板、电视、智能手表、VR头戴显示器、车载显 示器等其它任何具有显示功能的产品和部件中。
以上所述的实施方式，并不构成对该技术方案保护范围的限定。任何在上述实施方式的精神和原则之内所作的修改、等同替换和改进等，均应包含在该技术方案的保护范围之内。

Claims (38)

  1. 一种支撑机构，其特征在于，所述支撑机构包括：
    贴合层，包括相背设置的贴合面和连接面，所述贴合面用于贴合柔性显示屏；
    承载层，支撑所述贴合层，且位于所述连接面所在的一侧，所述承载层包括用于带动所述贴合层弯折的铰链；和
    连接件，连接在所述铰链和所述贴合层之间，以使所述贴合层与所述铰链在垂直于所述贴合面的方向上相对距离固定。
  2. 如权利要求1所述的支撑机构，其特征在于，所述连接件沿所述贴合面延伸的方向，可滑动地连接在所述铰链上。
  3. 如权利要求2所述支撑机构，其特征在于，贴合层包括可相对铰链滑动的滑动层，连接件一端固定于滑动层，相对另一端连接于铰链。
  4. 如权利要求2所述支撑机构，其特征在于，所述贴合层包括层叠于滑动层上的支撑层，所述贴合面位于所述滑动层，所述连接件穿过所述支撑层固结于所述滑动层。
  5. 如权利要求4所述支撑机构，所述滑动层为液态金属层，所述支撑层为固态金属层。
  6. 如权利要求5所述支撑机构，其特征在于，所述液态金属为常温呈固态的非晶合金。
  7. 如权利要求5所述支撑机构，其特征在于，所述支撑层与所述连接件之间留有第一间隙，在所述支撑机构弯折的过程中，所述第一间隙提供所述连接件相对于所述支撑层的位移空间。
  8. 如权利要求2～7任一项所述支撑机构，其特征在于，所述连接件包括固定于贴合层上的固持件及与固持件连接的定位件，所述铰链包含多个铰接的链节，每个所述链节上至少分布一个所述定位件，每个所述定位件与一个所述固持件配合以保持所述贴合层与所述铰链的相对距离。
  9. 如权利要求8所述支撑机构，其特征在于，所述固持件与所述定位件通过滑槽配合以保持所述贴合层与所述铰链的相对距离。
  10. 如权利要求9所述支撑机构，其特征在于，所述滑槽内设有第二间隙，在所述支撑机构弯折的过程中，所述第二间隙提供所述固持件相对所述定位件的位移空间。
  11. 如权利要求8所述支撑机构，其特征在于，所述定位件伸入所述链节，且与所述固持件螺纹连接。
  12. 如权利要求11所述支撑机构，其特征在于，螺纹连接的所述固持件和所述定位件与所述链节之间留有第三间隙，在所述支撑机构弯折的过程中，所述第三间隙用于提供所述铰链与所述固持件或所述定位件的位移空间。
  13. 如权利要求12所述支撑机构，其特征在于，在垂直于所述贴合面的方向上，所述定位件与所述链节之间设有弹性垫片。
  14. 如权利要求12所述支撑机构，其特征在于，所述定位件完全收容于所 述链节内部。
  15. 如权利要求2～7任一项所述支撑机构，其特征在于，多个所述链节的轴线延伸方向垂直于所述贴合面的延伸方向，且所述轴线平行于所述贴合面，所述支撑机构还包括定位件，每个所述链节均沿所述轴线分布有多个所述定位件，每个所述定位件与一个所述固持件配合以保持所述贴合层与所述铰链的相对距离。
  16. 如权利要求15所述支撑机构，其特征在于，每个所述链节上的任意一个所述定位件，在所述贴合面的延伸方向上均与相邻所述链节上的所述定位件错位设置。
  17. 如权利要求2所述支撑机构，其特征在于，在所述贴合面的延伸方向上，所述贴合层的相对两边分别与所述承载层接触固定。
  18. 如权利要求17所述支撑机构，其特征在于，所述承载层包括连接部、伸缩部和牵引部，所述连接部与所述贴合层固定，所述牵引部与所述铰链固定，所述伸缩部弹性连接于所述牵引部和所述连接部之间。
  19. 如权利要求18所述支撑机构，其特征在于，所述牵引部包括导轨，所述连接部为与所述导轨配合的导块，所述伸缩部为弹性件。
  20. 一种柔性显示装置，其特征在于，所述柔性显示装置包括如权利要求1～19任意一项所述的支撑机构和柔性显示屏，所述支撑机构设置在所述柔性显示屏的背面。
  21. 一种屏幕组件，其特征在于：包括柔性显示屏、固定贴合于柔性显示屏背面的滑动层、支撑滑动层的形变机构及连接件，所述连接件产生将所述滑动层与所述形变机构相互拉近的作用力而使所述滑动层与所述形变机构保持相互靠近的状态。
  22. 如权利要求21所述屏幕组件，其特征在于，所述连接件的相对两端分别连接所述滑动层与所述形变机构。
  23. 如权利要求21所述屏幕组件，其特征在于，所述柔性显示屏包括可弯折的弯折段，所述弯折段弯曲时所述滑动层相对所述形变机构滑动。
  24. 如权利要求23所述屏幕组件，其特征在于，所述连接件位于所述弯折段的轮廓范围内。
  25. 如权利要求24所述屏幕组件，其特征在于，所述连接件的一端固定于所述滑动层，相对另一端连接于所述形变机构。
  26. 如权利要求21～25任一项所述屏幕组件，其特征在于，所述连接件与所述形变机构之间形成间隙，所述间隙为所述连接件相对所述形变机构滑动的滑动空间。
  27. 如权利要求23～25任一项所述屏幕组件，其特征在于，所述弯折段弯曲时所述滑动层相对所述形变机构朝第一方向滑动，所述连接件的数量为多个且沿着所述第一方向排列。
  28. 如权利要求27所述屏幕组件，其特征在于，所述弯折段弯折时，各所述连接件与所述形变机构之间的间隙的宽度沿着所述第一方向逐渐增大。
  29. 如权利要求21～25任一项所述屏幕组件，其特征在于，所述连接件包 括固定于所述滑动层的固持件及连接于所述形变机构的定位件，所述固持件与所述定位件相互连接。
  30. 如权利要求29所述屏幕组件，其特征在于，所述定位件固定于所述形变机构上，所述固持件与所述定位件滑动连接。
  31. 如权利要求29所述屏幕组件，其特征在于，所述定位件滑动连接于所述形变机构上，所述固持件与所述定位件固定连接。
  32. 如权利要求21所述屏幕组件，其特征在于，所述屏幕组件还包括设于所述滑动层下方的支撑层，所述支撑层位于所述滑动层与所述形变机构之间。
  33. 如权利要求32所述屏幕组件，其特征在于，所述支撑层的弹性模量低于所述滑动层的弹性模量。
  34. 如权利要求32所述屏幕组件，其特征在于，所述支撑层的硬度高于所述滑动层的硬度。
  35. 如权利要求32～34任一项所述屏幕组件，其特征在于，所述滑动层为液态金属层，所述支撑层为钢片。
  36. 如权利要求32～34任一项所述屏幕组件，其特征在于，所述支撑层与所述柔性显示屏的弹性模量之差大于所述滑动层与所述柔性显示屏的弹性模量之差。
  37. 如权利要求32～34任一项所述屏幕组件，其特征在于，所述连接件一端固定于所述滑动层上，另一端穿过所述支撑层而连接于所述形变机构。
  38. 如权利要求32～34任一项所述屏幕组件，其特征在于，所述连接件一端固定于所述支撑层上，另一端连接于所述形变机构。
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