WO2020216006A1 - 柔性显示装置及电子装置 - Google Patents

柔性显示装置及电子装置 Download PDF

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Publication number
WO2020216006A1
WO2020216006A1 PCT/CN2020/082092 CN2020082092W WO2020216006A1 WO 2020216006 A1 WO2020216006 A1 WO 2020216006A1 CN 2020082092 W CN2020082092 W CN 2020082092W WO 2020216006 A1 WO2020216006 A1 WO 2020216006A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotating
frame
rotation
display device
flexible screen
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2020/082092
Other languages
English (en)
French (fr)
Inventor
成蛟
郑泽宽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
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 Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to EP20794454.7A priority Critical patent/EP3951754B1/en
Publication of WO2020216006A1 publication Critical patent/WO2020216006A1/zh
Priority to US17/507,529 priority patent/US11856721B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • 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
    • 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
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings

Definitions

  • the application relates to the field of display devices of electronic equipment, and in particular to a flexible display device and an electronic device provided with the flexible display device.
  • Flexible display screens are widely favored by consumers due to their foldable, curved, flexible and stretchable advantages.
  • the existing flexible display screen is generally folded through a single rotation center shaft.
  • the bending area of the flexible display screen will receive a relatively large pulling force, which may easily cause damage to the flexible display screen and affect the function of the flexible display screen.
  • the object of the present invention is to provide a flexible display device that can prevent damage to the flexible display screen, and an electronic device provided with the flexible display device.
  • the present invention provides a flexible display device, including a flexible screen and a rotating mechanism, the flexible screen includes a bendable area, the rotating mechanism is supported on the back of the bendable area, the The rotating mechanism is provided with two rotating central shafts spaced in parallel. The rotating mechanism rotates along the two rotating central axes, and the bendable area is bent with the rotating mechanism, and the flexible screen is bent In the process, the screen body layer of the bendable area of the flexible screen is located at the neutral layer of the flexible screen.
  • the present invention also provides an electronic device, including a first frame, a second frame, and a flexible display device.
  • the flexible display device includes a flexible screen and a rotating mechanism.
  • the flexible screen includes a bendable area, and the rotating mechanism Two rotating central shafts spaced in parallel are provided, the rotating mechanism is connected between the first frame and the second frame, and the flexible screen of the flexible display device covers the first frame and the On the second frame, the rotation mechanism is supported on the back of the bendable area, and the rotation mechanism is rotated along the two central rotation axes, and the bendable area bends with the rotation mechanism.
  • the screen body layer of the bendable area of the flexible screen is located at the neutral layer of the flexible screen.
  • the rotation mechanism of the electronic device of the present invention is provided with two spaced rotation central shafts.
  • the electronic device is bent or flattened along the two rotation central shafts, and the bendable area of the flexible screen can be bent or extended along with the rotation mechanism.
  • Flat the screen body layer of the flexible screen is located at the neutral layer of the flexible screen.
  • the bendable area of the flexible screen is bent. Since the screen layer is located in the neutral layer of the flexible screen, the screen layer is less stressed Therefore, the bending resistance of the screen body layer is improved, the damage of the flexible screen is avoided, and the service life of the flexible screen is increased.
  • FIG. 1 is a schematic diagram of a three-dimensional structure provided by one embodiment of an electronic device of the present invention.
  • Fig. 2 is a cross-sectional view taken along line II-II in Fig. 1.
  • FIG. 3 is an exploded schematic diagram of the three-dimensional structure of the electronic device in FIG. 1.
  • FIG. 4 is an exploded schematic view of the rotating body and the housing of the rotating mechanism in FIG. 2.
  • Fig. 5 is a three-dimensional exploded schematic view of the rotating main body of the rotating mechanism in Fig. 4, the rotating main body including a pair of rotating components and gear components.
  • Fig. 6 is a perspective exploded schematic view of one of the rotating components in Fig. 5.
  • Fig. 7 is a perspective exploded schematic view of another rotating assembly in Fig. 5.
  • FIG. 8 is a partial assembly diagram of the electronic device in FIG. 2.
  • Fig. 9 is a cross-sectional view along line IX-IX in Fig. 1.
  • FIG. 10 is a schematic diagram of the electronic device in FIG. 1 in a folded state.
  • Fig. 11 is a cross-sectional view taken along line XI-XI in Fig. 10.
  • a flexible display device includes a flexible screen and a rotating mechanism.
  • the flexible screen includes a bendable area.
  • the rotating mechanism is supported on the back of the bendable area.
  • the rotating mechanism is provided with two parallelly spaced rotations.
  • the rotating mechanism rotates along the two rotating central axes, and the bendable area is bent with the rotating mechanism.
  • the flexible screen can be folded
  • the screen body layer in the curved area is located at the neutral layer of the flexible screen.
  • the two rotation central axes are both virtual axes, and the two virtual axes are both located at the neutral layer position of the flexible screen.
  • the rotation mechanism includes two rotation components, each rotation component includes a support frame and a turret rotatably connected to the support frame, and the rotation center axis between the support frame and the turret of each rotation component is located in the flexible The neutral position of the screen.
  • the rotation center axis between the turrets of the two rotation components and the corresponding support frame coincides with the two rotation center axes of the rotation mechanism.
  • the rotating mechanism also includes a gear assembly located between the two rotating assemblies, and each rotating frame is provided with a driving gear meshing with the gear assembly, and the rotation of one of the rotating frames can drive the driving gear to rotate to drive
  • the rotation of the gear assembly causes the driving gear of the other turret to rotate and drives the other turret to rotate synchronously.
  • the gear assembly includes a pair of first transmission gears spaced apart in parallel, and a pair of second transmission gears located between the pair of first transmission gears.
  • the pair of first transmission gears respectively mesh with the turret of the pair of rotating components.
  • Drive gears, a pair of second transmission gears mesh with each other, and a pair of second transmission gears mesh with a pair of first transmission gears respectively.
  • Each support frame faces the end surface of the gear assembly with four shaft holes, each first transmission gear is sleeved on the first shaft, each second transmission gear is sleeved on the second shaft, the first shaft and the second shaft The opposite ends of the two rotating shafts are respectively rotatably connected in the corresponding shaft holes.
  • Each turret includes a rotating member rotatably connected to the support frame, and a connecting member connected to the rotating member.
  • the connecting member includes a connecting plate extending in the direction of the central axis of rotation, and the driving gear is disposed on the connecting member. One end of the plate away from the rotating member.
  • the connecting piece is clamped, screwed or glued to the rotating piece; or the connecting piece and the rotating piece are integrally formed.
  • the driving gear is a sector gear, and the sector gear is arranged on a side of the connecting plate facing the rotating member.
  • the supporting frame defines a receiving space
  • the rotating member is protrudingly provided with a rotating block rotatably connected to the receiving space
  • the axis of rotation between the rotating block and the receiving space is connected to the support frame and the The central axis of rotation between the turrets coincide.
  • a positioning rod is arranged in the receiving space, opposite ends of the positioning rod are respectively connected to two opposite inner walls of the receiving space, and the rotating member is positioned on the positioning rod.
  • the rotating mechanism further includes a housing, two connecting blocks protruding inward at opposite ends of the housing, the supporting frames of the two rotating components are respectively provided with connecting ports, and the two connecting blocks are accommodated and connected in the two connecting ports.
  • the cross-section of the bendable area is U-shaped or drop-shaped.
  • An electronic device comprising a first frame, a second frame, and a flexible display device.
  • the flexible display device includes a flexible screen and a rotating mechanism.
  • the flexible screen includes a bendable area.
  • the rotating mechanism is provided with a parallel Two rotating central shafts spaced apart, the rotating mechanism is connected between the first frame and the second frame, and the flexible screen of the flexible display device covers the first frame and the second frame Physically, the rotation mechanism is supported on the back of the bendable area, and the rotation mechanism is rotated along the two central rotation axes, and the bendable area bends with the rotation mechanism.
  • the screen body layer of the bendable area of the flexible screen is located at the neutral layer of the flexible screen.
  • the two rotation central axes are both virtual axes, and the two virtual axes are both located at the neutral layer position of the flexible screen.
  • the rotation mechanism includes two rotation components, each rotation component includes a support frame and a turret rotatably connected to the support frame, and the rotation center axis between the support frame and the turret of each rotation component is located in the flexible The neutral position of the screen.
  • the rotation center axis between the turrets of the two rotation components and the corresponding support frame coincides with the two rotation center axes of the rotation mechanism.
  • the rotating mechanism also includes a gear assembly located between the two rotating assemblies, and each rotating frame is provided with a driving gear meshing with the gear assembly, and the rotation of one of the rotating frames can drive the driving gear to rotate to drive
  • the rotation of the gear assembly causes the driving gear of the other turret to rotate and drives the other turret to rotate synchronously.
  • the flexible screen also includes a supporting film attached to the back of the screen layer, a cover plate covering the front of the screen layer, and two supporting plates laminated between the supporting film and the rotating mechanism.
  • FIG. 1 is a schematic diagram of a three-dimensional structure provided by one embodiment of the electronic device of the present invention
  • FIG. 2 is a cross-sectional view along the line II-II in FIG. 1.
  • the electronic device 100 of one embodiment of the present invention includes a casing 20 and a flexible screen 30 disposed on the front surface of the casing 20.
  • the housing 20 includes a first frame 21, a second frame 23 and a rotating mechanism 25 connected between the first frame 21 and the second frame 23.
  • the flexible screen 30 is arranged on the first frame 21, the second frame 23 and the rotating mechanism 25.
  • the flexible screen 30 is provided with a bendable area 31 corresponding to the rotating mechanism 25, and two non-bending areas 33 connected to opposite sides of the bendable area 31.
  • the backs of the two non-bending areas 33 are respectively It is attached to the front surfaces of the first frame 21 and the second frame 23, and the rotating mechanism 25 is supported on the back of the bendable area 31 of the flexible screen 30.
  • the rotating mechanism 25 is provided with two rotating central axes L at intervals.
  • the rotating mechanism 25 bends or flattens the first frame 21 and the second frame 23 through the two rotating central axes L, and the flexible screen 30 follows the first frame
  • the body 21 and the second frame body 23 are bent or flattened.
  • the screen body layer 34 of the flexible screen 30 is located at the neutral layer of the flexible screen 30.
  • the screen layer 34 is the main body of the display image of the flexible screen 30.
  • the two rotation center axes L are both virtual axes, and the two rotation center axes L are spaced apart and are both located at the neutral layer position of the flexible screen 30.
  • the neutral layer means that during the bending process of the flexible screen 30, the outer layer of the flexible screen 30 is stretched, and the inner layer of the flexible screen 30 is squeezed. In the extruded transition layer, the stress of the transition layer is small, and the transition layer is the neutral layer.
  • the screen base layer 34 is located at the neutral layer to improve the bending resistance of the screen body layer 34.
  • the electronic device 100 is a mobile phone. It can be understood that in other embodiments, the electronic device 100 may be, but is not limited to, a radio phone, a pager, a Web browser, a notebook, a calendar, and/or a PDA with a global positioning system (GPS) receiver.
  • GPS global positioning system
  • the rotating mechanism 25 of the electronic device 100 of the present invention is provided with two spaced rotation central axes L.
  • the electronic device 100 is bent or flattened along the two rotating central axes L, and the flexible screen 30 can be bent or bent along with the rotating mechanism 25.
  • the screen body layer 34 of the flexible screen 30 is located at the neutral layer of the flexible screen 30.
  • the bendable area 31 of the flexible screen 30 bends. Since the screen body layer 34 of the flexible screen 30 is located at the neutral layer of the flexible screen 30, The screen layer 34 receives less stress, thereby improving the bending resistance of the screen layer 34, avoiding damage to the flexible screen 30, and extending the service life of the flexible screen 30.
  • the cross-section of the bendable area 31 is U-shaped.
  • the cross-section of the bendable area 31 may be a drop shape, thereby reducing the thickness of the electronic device 100 after bending.
  • the flexible screen 30 also includes a supporting film 36 attached to the back of the screen layer 34, a cover plate 37 covering the front of the screen layer 34, and the supporting film 36 and the rotating mechanism laminated on 25 between the two support plates 38.
  • the flexible screen 30 is laminated on the two supporting plates 38, and the supporting film 36 is attached to the back of the screen layer 34 through optical glue, UV glue, back glue and other glues.
  • the supporting film 36 may be a PET film, a PI film, a PC film, or the like.
  • a supporting plate 38 is laminated between the supporting film 36 and the first frame body 21 to firmly connect the flexible screen 30 and the first frame body 21; another supporting plate 38 is laminated between the supporting film 36 and the second frame body 23, So that the flexible screen 30 and the second frame 23 are firmly connected.
  • the support plate 38 is a flexible support plate, and the support plate 38 can be a thin metal sheet such as copper foil, liquid metal sheet, memory alloy sheet, plastic sheet or other sheet made of suitable materials. In this embodiment, the support plate 38 is a thin steel sheet.
  • the cover plate 37 is a light-transmitting and bending-resistant sheet.
  • the cover plate 37 is an ultra-thin glass cover sheet, and the thickness of the ultra-thin glass cover sheet is on the order of microns.
  • the ultra-thin glass cover sheet has the advantages of better bending resistance, high strength, high hardness, etc.
  • the ultra-thin glass cover sheet can not only follow the flexible screen 30 bend or flatten, and can effectively resist external objects scratching the ultra-thin glass cover, not easy to wear.
  • the elastic modulus of the ultra-thin glass cover sheet is low. It can be directly pasted on the front of the flexible screen 30.
  • the flexible screen 30 When the flexible screen 30 is bent, the flexible screen 30 can be stretched simultaneously or approximately simultaneously, thereby avoiding the flexible screen 30. When bending, due to the large difference in the stretching range, damage occurs.
  • the ultra-thin glass cover sheet has a high light transmittance, which facilitates the emission of light from the flexible screen 30, and after long-term use, the ultra-thin glass cover sheet does not suffer from aging problems such as discoloration.
  • the cover 37 may also be a flexible transparent cover
  • the front side refers to the side facing the light emitting surface of the flexible screen 30 and the back side refers to the side facing away from the light emitting surface of the flexible screen.
  • the rotating mechanism 25 includes two rotating components 250, a gear component 256 located between the two rotating components 250, and a housing 259 for mounting the rotating component 250 and the gear component 256.
  • Each rotating assembly 250 includes a supporting frame 251 and a rotating frame 253 rotatably connected to the supporting frame 251.
  • the central axis of rotation between the support frame 251 and the rotating frame 253 of each rotating assembly 250 is a virtual axis and is located at the neutral layer position of the flexible screen 30, so as to improve the bending resistance of the flexible screen 30 and can Ensure that the flexible screen 30 is not damaged to the greatest extent.
  • Each turret 251 is provided with a driving gear 2570 meshing with the gear assembly 256.
  • One of the turrets 251 rotates relative to the corresponding support frame 253 to drive the corresponding driving gear 2570 to rotate.
  • the driving gear 2570 drives the gear assembly 256.
  • the rotation realizes the synchronous rotation of the turret 253 of the two rotating assemblies 250.
  • the first frame body 21 is provided with a first receiving groove 211 on the side adjacent to the second frame body 23, and the second frame body 23 is provided with a second receiving groove on the side adjacent to the first frame body 21 231.
  • the rotating mechanism 25 is accommodated in the space enclosed by the first receiving groove 211 and the second receiving groove 231.
  • a first installation groove 213 is formed on the front of the first frame 21 adjacent to the first receiving groove 211. The first installation groove 213 is used to install one end of the turret 253 away from the corresponding support frame 251.
  • the first installation groove The bottom surface of 213 is provided with a number of locking holes 214; the front of the second frame body 23 is provided with a second mounting groove 233 adjacent to the second receiving groove 231, and the second mounting groove 233 is used to install another turret 253 away from the corresponding support At one end of the frame 251, specifically, a plurality of locking holes 234 are opened on the bottom surface of the second installation groove 233.
  • the housing 259 includes a rectangular base plate 2591, and two arc-shaped side plates 2593 located on opposite sides of the base plate 2591. The base plate 2591 and the two side plates 2591 jointly enclose an installation space 2594. The assembly 250 and the gear assembly 256 are received in the installation space 2594.
  • each connecting block 2595 is provided with a connecting hole 2596.
  • the inner surface of the housing 259 is provided with a plurality of avoiding grooves 2597 between the two connecting blocks 2595 respectively, and these avoiding grooves 2597 are used to avoid the gear assembly 256.
  • the support frame 251 includes a front surface 2510 and a back surface, and the back surface can be attached to the inner surface of the housing 259.
  • a plurality of shaft holes 2511 are opened on one end surface of the support frame 251, and these shaft holes 2511 are used to connect the gear assembly 256.
  • the end surface of the support frame 251 facing the gear assembly 256 is provided with four shaft holes 2511 spaced apart from each other.
  • the back surface corresponds to the connecting block 2595 on the housing 259 with a connecting port 2513, and the connecting block 2595 can be received and connected in the connecting port 2513.
  • the front surface of the support frame 251 is provided with a through hole 2514 corresponding to the connecting hole 2596.
  • the through hole 2514 is a countersunk hole for receiving the head of the fastener.
  • the middle part of the front face 2510 of the support frame 251 is provided with two receiving slots 2515 spaced in parallel along the axis of the rotation center axis of the flexible screen 30, and the cross section of each receiving slot 2515 is arc-shaped.
  • the front face 2510 of the support frame 251 has a receiving space 2516 and a guide groove 2517 at opposite ends of the side away from the through hole 2514.
  • the receiving space 2516 is away from the shaft hole 2511, the guide groove 2517 is adjacent to the shaft hole 2511, the receiving space 2516 and the guide
  • the grooves 2517 pass through the hollow groove 2515 and the back surface of the support frame 251.
  • a positioning rod 2512 is provided on the side of the receiving space 2516 away from the through hole 2514.
  • the opposite ends of the positioning rod 2512 are respectively connected to two opposite inner walls of the receiving space 2516, and the positioning rod 2512 is separated from the front surface 2510 by a distance.
  • the support frame 251 is provided with a pair of arc-shaped first rotating ribs 2518 on two opposite inner walls of the receiving space 2516 toward the receiving space 2516.
  • the axis of the first rotating ribs 2518 is aligned with the center axis of rotation of the rotating assembly 250.
  • the axis line coincides; the support frame 251 is convexly provided with a second rotating rib 2519 on the inner wall of the guide groove 2517, and the axis line of the second rotating rib 2519 coincides with the axis line of the rotation center axis of the rotating assembly 250.
  • the rotating frame 253 includes a rotating piece 255 and a connecting piece 257.
  • the connecting piece 257 is clamped, screwed or glued to the rotating piece 255, or the connecting piece 257 and the rotating piece 255 are integrally formed.
  • the rotating member 255 is generally in the shape of a bar.
  • One end of the rotating member 255 is convexly provided with a rotating block 2551.
  • the mold section of the rotating block 2551 is arc-shaped.
  • the rotating block 2551 can be rotatably received in the receiving space 2516 of the supporting frame 251.
  • a pair of first arc-shaped grooves 2552 are formed on opposite sides of the rotating block 2551.
  • the pair of first arc-shaped grooves 2552 corresponds to a pair of first rotating ribs 2518 in the receiving space 2516 of the support frame 251.
  • the first arc-shaped grooves 2552 The axis of the axis coincides with the axis of the axis of rotation of the rotating assembly 250.
  • a connecting slot 2553 is formed on the front of the rotating member 255 corresponding to the rotating block 2551, and a connecting hole is formed on the bottom surface of the connecting slot 2553.
  • An end of the rotating member 255 away from the rotating block 2551 is provided with a mounting plate 2554.
  • the front of the mounting plate 2554 is provided with a number of mounting holes 2555.
  • the mounting holes 2555 are countersunk through holes.
  • the back of the rotating member 255 is provided with positioning grooves on the rotating block 2551 and the mounting plate 2554.
  • the front of the rotating member 255 is provided with a reinforcing plate corresponding to the positioning groove.
  • the reinforcing plate can enhance the strength of the rotating member 255.
  • the connecting member 257 includes a bar-shaped connecting plate 2571 and a guide plate 2573 protruding from the back of the connecting plate 2571.
  • the driving gear 2570 is arranged on the back of one end of the connecting plate 2571.
  • the cross section of the driving gear 2570 is a sector gear.
  • the sector gear is arranged on the side of the connecting plate 2571 facing the rotating member 255.
  • the teeth of the driving gear 2570 are arrayed in an arc along the axial circumference on the back of the connecting plate 2571.
  • a connecting block 2574 is protrudingly provided on an end of the back side of the connecting plate 2571 away from the driving gear 2570, and a counterbore 2575 is opened on the front side of the connecting block 2574.
  • the guide plate 2573 is located between the driving gear 2570 and the connecting block 2574.
  • the guide plate 2573 is perpendicular to the length of the connecting plate 2571.
  • the guide plate 2573 is semicircular.
  • the guide plate 2573 is rotatably received in the guide groove 2517 of the support frame 251.
  • a second arc groove 2577 corresponding to the second rotating rib 2519 in the guide groove 2517 of the support frame 251 is formed on the side surface.
  • the axis of the second arc groove 2577 coincides with the axis of the rotation center axis of the rotating assembly 250.
  • the gear assembly 256 includes a pair of first transmission gears 2561 spaced apart in parallel, and a pair of second transmission gears 2563 located between the pair of first transmission gears 2561.
  • the pair of first transmission gears 2561 respectively mesh with each other.
  • a pair of second transmission gears 2563 mesh with each other, and a pair of second transmission gears 2563 mesh with a pair of first transmission gears 2561, respectively.
  • Each first transmission gear 2561 is sleeved on a first rotation shaft 2562
  • each second transmission gear 2563 is sleeved on a second rotation shaft 2564
  • the first rotation shaft 2562 is parallel to the second rotation shaft 2564
  • the first rotation shaft 2562 and The opposite ends of the second rotating shaft 2564 are respectively connected between at least a pair of rotating components 250.
  • opposite ends of the first rotating shaft 2562 and the second rotating shaft 2564 are respectively rotatably connected in the corresponding shaft hole 2511.
  • the first transmission gear 2561, the second transmission gear 2563, and the driving gear 2570 all adopt spur gears.
  • each rotating component 250 When assembling the rotating mechanism 25, first assemble each rotating component 250. Specifically, the connecting block 2574 of the connecting piece 257 is placed in the connecting groove 2553 of the rotating piece 255, and a locking member is provided to pass through the counterbore 2575 and locked in the connecting groove. The connecting hole on the bottom surface of 2553 is used to fix the connecting piece 257 on the rotating piece 255.
  • the length of the connecting plate 2571 is perpendicular to the length of the rotating piece 255; insert the rotating block 2551 and the guide plate 2573 of the rotating frame 253 respectively
  • the drive gear 2570 on the connecting plate 2571 is accommodated in the corresponding accommodating groove 2515, and a pair of first rotating ribs 2518 are slidably accommodated in a pair of first rotating blocks 2551.
  • a pair of first rotating ribs 2518 are slidably accommodated in a pair of first rotating blocks 2551.
  • an arc-shaped slot 2552, and the second rotating rib 2519 is also slidably received in the second arc-shaped slot 2577 of the guide plate 2573.
  • the rotating frame 253 is rotatably connected to the supporting frame 251. Then install the gear assembly 256 between the pair of rotating assemblies 250.
  • a pair of rotating components 250 and a gear component 256 are placed in the housing 259, and the two connecting blocks 2595 are inserted into the connecting ports 2513 of the pair of rotating components 250, respectively, and a plurality of fasteners are provided to pass through the corresponding through holes of the supporting frame 251. 2514, locked in the corresponding connecting hole 2596, so that the pair of rotating components 250 are fixed in the housing 259, and the outer peripheral portions of the first transmission gear 2561 and the second transmission gear 2563 are received in the corresponding escape groove 2597.
  • the supporting frame 251 and the rotating frame 253 of each rotating assembly 250 after assembly are connected to each other through the first arc-shaped slot 2552 and the first rotating rib 2518 to realize mutual rotation.
  • the first arc-shaped slot 2552 is provided on the rotating frame 253.
  • the first rotating rib 2518 is disposed on the support frame 251.
  • the axis of rotation between the turret 253 and the support frame 251 is a virtual axis, the axis of the virtual axis is located outside the rotating assembly 250, and the axis of the virtual axis is connected to the first arc slot 2552 and the second arc.
  • the axis of the groove 2577 coincides.
  • the first arc-shaped groove may also be opened on the support frame 251, and the first rotating rib may also be provided on the turret 253. Specifically, the first arc-shaped groove may be opened on the support frame 251. On the inner wall of the accommodating space 2516, the first rotating rib is protruding from the rotating block 2551, and the first rotating rib is slidably received in the first arc-shaped groove, so that the rotating frame 253 and the supporting frame 251 Turn the connection.
  • the second arc-shaped groove may also be opened on the supporting frame 251, and the second rotating rib may also be provided on the rotating frame 253.
  • the second arc-shaped groove may be opened on the supporting frame 251.
  • the second rotating rib is projected on the side of the guide plate 2573, and the second rotating rib is slidably received in the second arc-shaped groove.
  • the connecting member 257 may also be fixed to the rotating member 255 by a snap connection or an adhesive connection.
  • the connecting member 257 and the rotating member 255 can also be integrally formed.
  • the first frame body 21 and the second frame body 23 are flush with each other, so that the first receiving groove 211 and the second receiving groove 231 form a space; Place the rotating mechanism 25 in the space, so that the mounting plates 2554 of the pair of rotating components 250 are respectively received in the first mounting groove 213 and the second mounting groove 233, and a plurality of fasteners respectively pass through the mounting holes on the mounting plate 2554 2555 is locked in the corresponding locking holes 214 and 234.
  • each rotating member 255 is positioned on the corresponding positioning rod 2512, that is, the positioning rod 2512 is positioned on the rotating block 2551 and the rotating block 2551 on the back of the rotating member 255.
  • the two support plates 38 are attached to the front surfaces of the first frame 21 and the second frame 23, respectively. Since the heads of the fasteners on the electronic device 100 are accommodated in the corresponding countersunk holes, the two The front surface of the support plate 38 is on the same plane.
  • the back of the flexible screen 30 is attached to the front of the support plate 38, that is, the electronic device 100 is assembled, and the axis of the rotation axis between the rotating frame 253 and the corresponding support frame 251 is located at the neutral layer of the flexible screen 30.
  • FIGS. 10 and 11 When the electronic device 100 needs to be bent, a bending force is applied to at least one of the first frame 21 and the second frame 23 of the electronic device 100, as shown in FIG.
  • the second frame body 23 exerts a bending force F1, which can make the rotating parts 255 connected to the first frame body 21 and the second frame body 23 rotate in a mutually adjacent direction.
  • Each rotating part 255 and a corresponding support frame 251 The axis of the central axis of rotation between is located at the neutral layer position of the flexible screen 30, and the screen body layer 34 of the flexible screen 30 is located at the neutral layer position of the flexible screen 30.
  • the rotating member 255 fixed on the second frame body 23 rotates counterclockwise in the direction of the first frame body 21, driving the driving gear 2570 of the rotating member 255 to rotate counterclockwise, and the driving gear 2570 drives the corresponding first transmission gear 2561 Rotating clockwise, the first transmission gear 2561 drives the corresponding second transmission gear 2563 to rotate counterclockwise, the second transmission gear 2563 drives the other second transmission gear 2563 to rotate clockwise, and the other second transmission gear 2563 drives the corresponding other The first transmission gear 2561 rotates counterclockwise, and the other first transmission gear 2561 drives the corresponding other driving gear 2570 to rotate clockwise, so that the rotating member 255 on the first frame 21 rotates clockwise to realize the rotation mechanism 25 Linkage, so that the first frame 21 and the second frame 23 are adjacent to each other to complete the bending.
  • the axis of the rotation axis between the turret 253 and the corresponding support frame 251 is located at the neutral layer position of the flexible screen 30, and the screen body layer 34 of the flexible screen 30 is located at the neutral layer position.
  • a bending force can also be applied to the first frame 21, and the rotating member 255 fixedly connected to the first frame 21 rotates clockwise toward the second frame 23 to drive the corresponding
  • the driving gear 2570 rotates clockwise
  • the driving gear 2570 drives the corresponding first transmission gear 2561 to rotate counterclockwise
  • the first transmission gear 2561 drives the corresponding second transmission gear 2563 to rotate clockwise
  • the second transmission gear 2563 drives the other second
  • the transmission gear 2563 rotates counterclockwise
  • the other second transmission gear 2563 drives the corresponding other first transmission gear 2561 to rotate clockwise
  • the other first transmission gear 2561 drives the corresponding other driving gear 2570 to rotate counterclockwise
  • the rotating member 255 on the second frame 21 is rotated counterclockwise to realize the linkage of the rotating mechanism 25, so that the first frame 21 and the second frame 23 are adjacent to each other to complete the bending.
  • the axis of the rotation axis between the turret 253 and the corresponding support frame 251 is located at the neutral layer position of the flexible screen 30, and the screen body layer 34 of the flexible screen 30 is located at the neutral layer position.
  • a bending force can also be applied to the first frame 21 and the second frame 23 to connect to the rotating member 255 on the first frame 21 and the second frame 23. Turn towards each other.
  • the axis of the rotation axis between the turret 253 and the corresponding support frame 251 is located at the neutral layer position of the flexible screen 30, and the screen body layer 34 of the flexible screen 30 is located at the neutral layer position.
  • a flattening force is applied to at least one of the first frame 21 and the second frame 23 of the electronic device 100 to be connected to the first frame 21 and the second frame 23
  • the rotating members 255 rotate in directions away from each other, the axis of the rotation center axis between each rotating member 255 and the corresponding support frame 251 is located at the neutral layer of the flexible screen 30, and the screen layer 34 of the flexible screen 30 is located The position of the neutral layer of the flexible screen 30.
  • the rotating member 255 fixed on the second frame body 23 rotates clockwise in a direction away from the first frame body 21, driving the driving gear 2570 of the rotating member 255 to rotate clockwise, and the driving gear 2570 drives the corresponding first transmission gear 2561 rotates counterclockwise
  • the first transmission gear 2561 drives the corresponding second transmission gear 2563 to rotate clockwise
  • the second transmission gear 2563 drives the other second transmission gear 2563 to rotate counterclockwise
  • the other second transmission gear 2563 drives the corresponding
  • the other first transmission gear 2561 rotates clockwise
  • the other first transmission gear 2561 drives the corresponding other driving gear 2570 to rotate counterclockwise so that the rotation mechanism 25 is linked, so that the first frame 21 and the second frame 23 Move away from each other to complete the flattening.
  • a flattening force can also be applied to the first frame 21, and the rotating member 255 fixed on the first frame 21 rotates counterclockwise in a direction away from the second frame 23, so that
  • the clock rotates so that the first frame body 21 and the second frame body 23 are separated from each other to complete the flattening.
  • a flattening force can also be applied to the first frame 21 and the second frame 23 together, so that the rotating member 255 connected to the first frame 21 and the second frame 23 Turn towards each other.
  • the present invention does not require high manufacturing accuracy due to the spur gear meshing linkage mode, which can effectively reduce the production cost and improve the production efficiency.
  • the guide groove 2517 and the second rotating rib 2519 of the supporting frame 251 in each rotating assembly 250 can be omitted; the corresponding extension plate 2573 and the second arc-shaped groove 2577 on the connecting member 257 can be omitted.

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Abstract

本申请提供了一种电子装置，包括第一框体、第二框体及柔性显示装置，所述柔性显示装置包括柔性屏及转动机构，所述柔性屏包括可折弯区域，所述转动机构设置有平行间隔的两个转动中心轴，所述转动机构连接于所述第一框体与第二框体之间，所述柔性显示装置的柔性屏覆盖于所述第一框体及所述第二框体上，所述转动机构支撑于所述可折弯区域的背面，所述转动机构通过沿两个所述转动中心轴转动，所述可折弯区域随所述转动机构弯折，在所述柔性屏弯折的过程中，所述柔性屏的可折弯区域的屏体层位于所述柔性屏的中性层位置。本发明还提供了一种柔性显示装置。

Description

柔性显示装置及电子装置 技术领域
本申请涉及电子设备的显示装置领域，尤其涉及一种柔性显示装置及设置有所述柔性显示装置的电子装置。
背景技术
柔性显示屏由于具有可折叠、曲面、柔性和可拉伸等优点，广泛地受到消费者的青睐。现有的柔性显示屏一般通过单转动中心转轴实现折叠。然而，单转动中心转轴的柔性显示屏在弯折时，柔性显示屏的弯折区域会受到较大的拉扯力，容易造成所述柔性显示屏损坏，影响所述柔性显示屏的功能。
发明内容
本发明的目的在于提供一种能防止柔性显示屏损坏的柔性显示装置，以及设置有所述柔性显示装置的电子装置。
为了解决上述技术问题，本发明提供了一种柔性显示装置，包括柔性屏及转动机构，所述柔性屏包括可折弯区域，所述转动机构支撑于所述可折弯区域的背面，所述转动机构设置有平行间隔的两个转动中心轴，所述转动机构通过沿两个所述转动中心轴转动，所述可折弯区域随所述转动机构弯折，在所述柔性屏弯折的过程中，所述柔性屏的可折弯区域的屏体层位于所述柔性屏的中性层位置。
本发明还提供一种电子装置，包括第一框体、第二框体及柔性显示装置，所述柔性显示装置包括柔性屏及转动机构，所述柔性屏包括可折弯区域，所述转动机构设置有平行间隔的两个转动中心轴，所述转动机构连接于所述第一框体与第二框体之间，所述柔性显示装置的柔性屏覆盖于所述第一框体及所述第二框体上，所述转动机构支撑于所述可折弯区域的背面，所述转动机构通过沿两个所述转动中心轴转动，所述可折弯区域随所述转动机构弯折，在所述柔性屏弯折的过程中，所述柔性屏的可折弯区域的屏体层位于所述柔性屏的中性层位置。
本发明电子装置的转动机构设置间隔的两个转动中心轴，所述电子装置通过沿两个转动中心轴弯折或展平，柔性屏的可折弯区域能随所述转动机构弯折或展平，柔性屏的屏体层位于所述柔性屏的中性层位置。当电子装置通过转动机构折弯时，所述柔性屏的可折弯区域弯曲，由于所述屏体层位于所述柔性屏的中性层位置，因此，所述屏体层受到的应力较少，从而提高了屏体层的耐弯折性，避免柔性屏的损坏，增长了所述柔性屏的使用寿命。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的明显变形方式。
图1是本发明电子装置的其中一实施例提供的立体结构示意图。
图2是图1中沿II-II线的剖视图。
图3是图1中的电子装置的立体结构分解示意图。
图4是图2中的转动机构的转动主体与壳体的分解示意图。
图5是图4中转动机构的转动主体的立体分解示意图，所述转动主体包括一对转动组件及齿轮组件。
图6是图5中的其中一转动组件的立体分解示意图。
图7是图5中的另一转动组件的立体分解示意图。
图8是图2中的电子装置的部分组装示意图。
图9是图1中沿IX-IX线的剖视图。
图10是图1中的电子装置的折叠状态示意图。
图11是图10中的沿XI-XI线的剖视图。
具体实施方式
一种柔性显示装置，包括柔性屏及转动机构，所述柔性屏包括可折弯区域，所述转动机构支撑于所述可折弯区域的背面，所述转动机构设置有平行间隔的两个转动中心轴，所述转动机构通过沿两个所述转动中心轴转动，所述可折弯区域随所述转动机构弯折，在所述柔性屏弯折的过程中，所述柔性屏的可折弯区域的屏体层位于所述柔性屏的中性层位置。
两个所述转动中心轴均为虚拟轴，两个所述虚拟轴均位于所述柔性屏的中性层位置。
所述转动机构包括两个转动组件，每一转动组件包括支撑框及转动连接于所述支撑框上的转动架，每一转动组件的支撑框与转动架之间的转动中心轴位于所述柔性屏的中性层位置。
两个转动组件的转动架与对应的支撑框之间的转动中心轴与所述转动机构的两个转动中心轴重合。
所述转动机构还包括位于两个所述转动组件之间的齿轮组件，每一转动架上设置有啮合于所述齿轮组件的驱动齿轮，其中一转动架的转动能带动驱动齿轮转动，以带动齿轮组件转动使另一转动架的驱动齿轮转动而带动所述另一转动架同步转动。
所述齿轮组件包括平行间隔的一对第一传动齿轮，以及位于一对第一传动齿轮之间的一对第二传动齿轮，一对第一传动齿轮分别啮合于一对转动组件的转动架的驱动齿轮，一对第二传动齿轮相互啮合，且一对第二传动齿轮分别啮合于一对第一传动齿轮。
每一支撑框面朝所述齿轮组件的端面开设有四个轴孔，每一第一传动齿轮套接于第一转轴，每一第二传动齿轮套接于第二转轴，第一转轴及第二转轴相对的两端分别可转动地连接于对应的轴孔内。
每一转动架包括转动连接于支撑框的转动件，以及连接于所述转动件的连接件，所述连接件包括沿转动中心轴的方向延伸的连接板，所述驱动齿轮设置于所述连接板远离所述转动件的一端。
所述连接件卡接、螺接或胶接于所述转动件；或者所述连接件与所述转动件一体成型制成。
所述驱动齿轮是扇形齿轮，所述扇形齿轮设置于所述连接板面朝所述转动件的一侧。
所述支撑框开设收容空间，所述转动件凸设转动地连接于所述收容空间的转动块，所述转动块与所述收容空间之间的转动轴心线与所述支撑框与所述转动架之间的转动中心轴重合。
所述收容空间内设置定位杆，所述定位杆相对的两端分别连接于所述收容空间相对的两个内壁，所述转动件定位于所述定位杆。
所述转动机构还包括外壳，所述外壳内相对的两端向内凸设两个连接块，两个转动组件的支撑框分别开设连接口，两个连接块收容并连接于两个连接口内。
所述柔性屏的可折弯区域弯曲时，所述可折弯区域的横截面呈U形或水滴形。
一种电子装置，其包括第一框体、第二框体及柔性显示装置，所述柔性显示装置包括柔性屏及转动机构，所述柔性屏包括可折弯区域，所述转动机构设置有平行间隔的两个转动中心轴，所述转动机构连接于所述第一框体与第二框体之间，所述柔性显示装置的柔性 屏覆盖于所述第一框体及所述第二框体上，所述转动机构支撑于所述可折弯区域的背面，所述转动机构通过沿两个所述转动中心轴转动，所述可折弯区域随所述转动机构弯折，在所述柔性屏弯折的过程中，所述柔性屏的可折弯区域的屏体层位于所述柔性屏的中性层位置。
两个所述转动中心轴均为虚拟轴，两个所述虚拟轴均位于所述柔性屏的中性层位置。
所述转动机构包括两个转动组件，每一转动组件包括支撑框及转动连接于所述支撑框上的转动架，每一转动组件的支撑框与转动架之间的转动中心轴位于所述柔性屏的中性层位置。
两个转动组件的转动架与对应的支撑框之间的转动中心轴与所述转动机构的两个转动中心轴重合。
所述转动机构还包括位于两个所述转动组件之间的齿轮组件，每一转动架上设置有啮合于所述齿轮组件的驱动齿轮，其中一转动架的转动能带动驱动齿轮转动，以带动齿轮组件转动使另一转动架的驱动齿轮转动而带动所述另一转动架同步转动。
所述柔性屏还包括贴设于屏体层的背面的支撑膜、盖设于屏体层的正面的一盖板，以及层叠于支撑膜与转动机构之间的两个支撑板，当所述第一框体与所述第二框体呈展平状态时，两个所述支撑板的正面处于同一平面上。
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付出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
请一并参阅图1及图2，图1是本发明电子装置的其中一实施例提供的立体结构示意图；图2是图1中沿II-II线的剖视图。本发明的其中一实施例的电子装置100包括一壳体20及设置于所述壳体20的正面上的一柔性屏30。所述壳体20包括一第一框体21、一第二框体23及连接于所述第一框体21与所述第二框体23之间的一转动机构25。所述柔性屏30设置于第一框体21、第二框体23及转动机构25上。柔性屏30设置有对应所述转动机构25的一可折弯区域31，以及连接于可折弯区域31相对的两侧的两个非折弯区域33，两个非折弯区域33的背面分别贴合于第一框体21及第二框体23的正面，转动机构25支撑在柔性屏30的可折弯区域31的背面。转动机构25设置间隔的两个转动中心轴L，转动机构25通过两个所述转动中心轴L使第一框体21与第二框体23弯折或展平，柔性屏30随第一框体21与第二框体23弯折或展平。在柔性屏30弯折或展平的过程中，柔性屏30的屏体层34位于所述柔性屏30的中性层位置。所述屏体层34是柔性屏30的显示图像的主体。
本实施例中，两个转动中心轴L均为虚拟轴，两个转动中心轴L间隔且均位于所述柔性屏30的中性层位置。
所述中性层是指柔性屏30在弯曲的过程中，柔性屏30的外层受拉伸，柔性屏30的内层受挤压，在其断面上有一个不受拉伸，又不受挤压的过渡层，所述过渡层的应力很少，所述过渡层即为中性层。本发明中的屏本层34位于所述中性层位置，以提高所述屏体层34的耐弯折性。
本实施例中，电子装置100为手机。可以理解，在其它实施例中，电子装置100可以是但不限于无线电电话、寻呼机、Web浏览器、记事簿、日历以及/或全球定位系统(GPS)接收器的PDA。
本发明的电子装置100的转动机构25设置间隔的两个转动中心轴L，电子装置100通过沿两个转动中心轴L弯折或展平，柔性屏30能随所述转动机构25弯折或展平，柔性屏30的屏体层34位于所述柔性屏30的中性层位置。当电子装置100通过转动机构25折弯 时，所述柔性屏30的可折弯区域31弯曲，由于所述柔性屏30的屏体层34位于所述柔性屏30的中性层位置，因此，所述屏体层34受到的应力较少，从而提高了屏体层34的耐弯折性，避免柔性屏30的损坏，增长了所述柔性屏30的使用寿命。
本实施例中，柔性屏30的可折弯区域31弯曲时，所述可折弯区域31的横截面呈U形。
在其他实施例中，柔性屏30的可折弯区域31弯曲时，可折弯区域31的横截面可以呈水滴形，从而减少厚度电子装置100弯折后的厚度。
如图2所示，柔性屏30还包括贴设于屏体层34的背面的一支撑膜36、盖设于屏体层34的正面的一盖板37，以及层叠于支撑膜36与转动机构25之间的两个支撑板38。所述柔性屏30层叠于两个所述支撑板38上，支撑膜36通过光学胶、UV胶、背胶等胶体贴设于屏体层34的背面。支撑膜36可以是PET膜、PI膜、PC膜等。支撑膜36与第一框体21之间层叠有支撑板38，以使柔性屏30与第一框体21牢固连接；支撑膜36与第二框体23之间层叠有另一支撑板38，以使柔性屏30与第二框体23牢固连接。支撑板38是柔性支撑片，支撑板38可以是薄金属片如铜箔、液态金属片、记忆合金片、塑胶片或其他符合材料制成的薄片。本实施例中，支撑板38是薄钢片。
盖板37是透光的、且耐弯曲的薄片，本实施例中，盖板37为超薄玻璃盖片，所述超薄玻璃盖片的厚度为微米级。超薄玻璃盖片具有较好的耐弯曲性、高强度、高硬度等优点，当超薄玻璃盖片贴设于屏体层34的正面时，所述超薄玻璃盖片不仅可以随柔性屏30弯曲或展平，并且可以有效地抵御外部物件对超薄玻璃盖片划伤，不易出现磨损的情况。其次，超薄玻璃盖片的弹性模量较低，可将其直接粘贴在柔性屏30的正面，在柔性屏30弯曲时可跟随柔性屏30一起同步或近似同步拉伸，从而避免柔性屏30在弯曲时由于拉伸幅度差异较大导致出现破损的情况。另一方面，所述超薄玻璃盖片的透光率高，方便柔性屏30的光线的射出，且长时间使用后，所述超薄玻璃盖片也不会出现变色等老化问题。
在其他实施例中，盖板37也可以是柔性的透明盖板
本发明中的所述正面指面朝所述柔性屏30的出光面的面，所述背面指背朝所述柔性屏的出光面的面。
请一并参阅图3至图7，转动机构25包括两个转动组件250、位于两个转动组件250之间齿轮组件256及用于安装转动组件250和齿轮组件256的壳体259。每一转动组件250包括支撑框251及转动连接于所述支撑框251上的转动架253。每一转动组件250的支撑框251与转动架253之间的转动中心轴是虚拟轴，且位于所述柔性屏30的中性层位置，以提高所述柔性屏30的耐弯曲性，且能保证柔性屏30最大程度不受损。每一转动架251上设置有啮合于齿轮组件256的驱动齿轮2570，其中一转动架251相对于对应的支撑框253转动，以带动相应的驱动齿轮2570转动，所述驱动齿轮2570带动齿轮组件256转动实现两个转动组件250的转动架253的同步转动。
如图3所示，第一框体21于邻近第二框体23的一侧设置有第一收容槽211，第二框体23于邻近第一框体21的一侧设置有第二收容槽231，当第一框体21与第二框体23处于展平状态时，转动机构25收容于第一收容槽211与第二收容槽231围成的空间内。第一框体21的正面邻近所述第一收容槽211处开设有第一安装槽213，第一安装槽213用于安装其中一转动架253远离对应的支撑框251的一端，第一安装槽213的底面开设有若干锁固孔214；第二框体23的正面邻近第二收容槽231处开设有第二安装槽233，第二安装槽233用于安装另一转动架253远离对应的支撑框251的一端，具体的，第二安装槽233的底面开设有若干锁固孔234。如图4所示，外壳259包括矩形的基板2591，以及位于基板2591相对的两侧边的两个弧形的侧板2593，基板2591及两个侧板2593共同围成一安装空间2594，转动组件250及齿轮组件256收容于安装空间2594内。两个侧板2593的内表面相 对的两端分别向安装空间2594内凸设连接块2595，每一连接块2595上开设有连接孔2596。外壳259的内表面于两个连接块2595之间分别开设有若干避让槽2597，这些避让槽2597用于避让齿轮组件256。
请一并参阅图5至图7，支撑框251包括正面2510及背面，所述背面能贴合于外壳259的内表面上。支撑框251的一端面开设有若干轴孔2511，这些轴孔2511用于连接齿轮组件256。本实施例中，支撑框251面朝齿轮组件256的端面开设有相互间隔的四个轴孔2511。所述背面对应外壳259上的连接块2595开设有连接口2513，连接块2595能收容并连接于连接口2513内。支撑框251的正面上开设有对应连接孔2596的通孔2514，通孔2514为沉头孔，以便收容锁固件的头部。支撑框251的正面2510的中部沿柔性屏30的转动中心轴的轴向开设有平行间隔的两个收容槽2515，每一收容槽2515的横截面为圆弧形。支撑框251的正面2510远离通孔2514的一侧相对的两端分别开设有一收容空间2516及一导槽2517，收容空间2516远离轴孔2511，导槽2517邻近轴孔2511，收容空间2516及导槽2517均穿通收空槽2515及支撑框251的背面。收容空间2516内远离通孔2514的一侧设置有定位杆2512，定位杆2512相对的两端分别连接于收容空间2516相对的两个内壁，且定位杆2512与正面2510相隔一段距离。支撑框251于收容空间2516相对的两个内壁上朝收容空间2516内凸设有一对圆弧形的第一转动筋2518，第一转动筋2518的轴心线与转动组件250的转动中心轴的轴心线重合；支撑框251于导槽2517的内壁上凸设有第二转动筋2519，第二转动筋2519的轴心线与转动组件250的转动中心轴的轴心线重合。
转动架253包括转动件255及连接件257，连接件257卡接、螺接或胶接于转动件255，或者连接件257与转动件255一体成型制成。转动件255概呈条形状，转动件255的一端凸设有一转动块2551，转动块2551的模截面呈圆弧形，转动块2551能转动收容于支撑框251的收容空间2516内。转动块2551相对的两侧面上开设有一对第一弧形槽2552，一对第一弧形槽2552对应支撑框251的收容空间2516内的一对第一转动筋2518，第一弧形槽2552的轴心线与所述转动组件250的转动中心轴的轴心线重合。转动件255的正面对应转动块2551处开设有连接槽2553，连接槽2553的底面开设有连接孔。转动件255远离转动块2551的一端设置有安装板2554，安装板2554的正面开设有若干安装孔2555，安装孔2555为沉头的通孔。转动件255的背面于转动块2551与安装板2554设有定位槽，转动件255的正面对应定位槽处设置有加强板，加强板能增强转动件255的强度。
连接件257包括条形的连接板2571及凸设于连接板2571背面的导板2573，驱动齿轮2570设置于连接板2571一端的背面，本实施例中，驱动齿轮2570的横截面为扇形齿轮，所述扇形齿轮设置于所述连接板2571面朝所述转动件255的一侧，具体的，驱动齿轮2570的齿牙是在连接板2571的背面沿轴向圆周阵列成圆弧形。连接板2571的背面远离驱动齿轮2570的一端凸设有连接块2574，连接块2574的正面开设有沉头孔2575。导板2573位于驱动齿轮2570与连接块2574之间，导板2573垂直于连接板2571的长度方向，导板2573呈半圆形，导板2573能转动地收容于支撑框251的导槽2517内，导板2573的侧面开设有对应支撑框251的导槽2517内的第二转动筋2519的第二弧形槽2577，第二弧形槽2577的轴心线与转动组件250的转动中心轴的轴心线重合。
如图5所示，齿轮组件256包括平行间隔的一对第一传动齿轮2561，以及位于一对第一传动齿轮2561之间的一对第二传动齿轮2563，一对第一传动齿轮2561分别啮合于一对转动组件250的驱动齿轮2570；一对第二传动齿轮2563相互啮合，且一对第二传动齿轮2563分别啮合于一对第一传动齿轮2561。每一第一传动齿轮2561套接于一第一转轴2562上，每一第二传动齿轮2563套接于一第二转轴2564上，第一转轴2562平行于第二转轴2564，第一转轴2562及第二转轴2564相对的两端分别连接于至少一对转动组件250之间。具体的，第一转轴2562及第二转轴2564相对的两端分别可转动地连接于对应的轴孔2511 内。本发明中，第一传动齿轮2561、第二传动齿轮2563及驱动齿轮2570均采用直齿轮。
组装转动机构25时，先组装每一转动组件250，具体的，将连接件257的连接块2574放置于转动件255的连接槽2553内，提供锁固件穿过沉头孔2575锁固于连接槽2553的底面的连接孔内，以将连接件257固定于转动件255上，连接板2571的长度方向垂直于所述转动件255的长度方向；将转动架253的转动块2551及导板2573分别插入支撑框251的收容空间2516及导槽2517内，连接板2571上的驱动齿轮2570收容于对应的收容槽2515内，并使一对第一转动筋2518滑动地收容于转动块2551的一对第一弧形槽2552内，且第二转动筋2519也滑动收容于导板2573的第二弧形槽2577内。此时，转动架253可转动地连接于支撑框251上。再将齿轮组件256安装于一对转动组件250之间，具体的，将齿轮组件256放置于一对转动组件250之间，使一对第一传动齿轮2561上的第一转轴2562正对每一转动组件250上外侧的两个轴孔2511，使第一转轴2562相对的两端分别插入对应的轴孔2511内；一对第二传动齿轮2563上的第二转轴2564正对每一转动组件250上中间的两个轴孔2511，使第二转轴2564相对的两端分别插入对应的轴孔2511内。此时，一对第一传动齿轮2561分别啮合于两个驱动齿轮2570，一对第二传动齿轮2563相互啮合且分别啮合于一对第一传动齿轮2561。再将一对转动组件250及齿轮组件256放置于外壳259内，两个连接块2595分别插入一对转动组件250的连接口2513内，提供若干锁固件分别穿过对应的支撑框251的通孔2514，锁固于对应的连接孔2596内，使一对转动组件250固定于外壳259内，第一传动齿轮2561及第二传动齿轮2563的外周部分收容于对应的避让槽2597内。
组装完成的每一转动组件250的支撑框251与转动架253通过相互配合的第一弧形槽2552与第一转动筋2518连接来实现相互转动，第一弧形槽2552开设于转动架253上，第一转动筋2518设置于支撑框251上。转动架253与支撑框251之间的转动轴是虚拟轴，虚拟轴的轴心线位于转动组件250的外部，且所述虚拟轴的轴心线与第一弧形槽2552及第二弧形槽2577的轴心线重合。
在其他实施例中，第一弧形槽也可以开设于支撑框251上，第一转动筋也可以设置于转动架253上，具体的，所述第一弧形槽开设于所述支撑框251的收容空间2516的内壁上，所述第一转动筋凸设于转动块2551上，所述第一转动筋能滑动地收容于第一弧形槽内，使转动架253与支撑框251之间转动连接。
在其他实施例中，第二弧形槽也可以开设于支撑框251上，第二转动筋也可以设置于转动架253上，具体的，所述第二弧形槽开设于所述支撑框251的导槽2517的内壁上，所述第二转动筋凸设于导板2573的侧面上，所述第二转动筋能滑动地收容于第二弧形槽内。
在其他实施例中，连接件257还可以通过卡接方式、或胶接方式固定于转动件255上。
在其他实施例中，连接件257与转动件255也可以一体成型制成。
请一并参阅图3至图9，组装所述电子装置100时，将第一框体21与第二框体23齐平，使第一收容槽211与第二收容槽231围成一空间；将转动机构25放置于所述空间内，使一对转动组件250的安装板2554分别收容于第一安装槽213及第二安装槽233内，若干锁固件分别穿过安装板2554上的安装孔2555锁固于对应的锁固孔214、234内。此时，第一框体21与第二框体23呈展平状态，每一转动件255定位于对应的定位杆2512上，即定位杆2512定位于转动件255背面的所述转动块2551与所述安装板2554之间的定位槽内。将两个支撑板38分别贴合于第一框体21及第二框体23的正面，由于电子装置100上的锁固件的头部均收容于对应的沉头孔内，从而能使两个所述支撑板38的正面处于同一平面上。将柔性屏30的背面贴合于支撑板38的正面，即电子装置100组装完成，转动架253与对应的支撑框251之间的转动轴的轴心线位于柔性屏30的中性层位置。
请一并参阅图10及图11，需要折弯所述电子装置100时，对电子装置100的第一框体 21及第二框体23至少其中一个施加折弯的力，如图11中对第二框体23施加折弯的力F1，能使连接于第一框体21和第二框体23上的转动件255朝相互邻近的方向转动，每一转动件255与对应的支撑框251之间的转动中心轴的轴心位于柔性屏30的中性层位置，柔性屏30的屏体层34位于所述柔性屏30的中性层位置。具体的，固定于第二框体23上的转动件255朝第一框体21的方向逆时钟转动，带动转动件255的驱动齿轮2570逆时钟转动，驱动齿轮2570带动对应的第一传动齿轮2561顺时钟转动，第一传动齿轮2561带动对应的第二传动齿轮2563逆时钟转动，第二传动齿轮2563带动另一第二传动齿轮2563顺时钟转动，另一第二传动齿轮2563带动对应的另一第一传动齿轮2561逆时钟转动，所述另一第一传动齿轮2561带动对应的另一驱动齿轮2570顺时钟转动，使第一框体21上的转动件255顺时钟转动，以实现转动机构25联动，从而使第一框体21与第二框体23相互邻近，以完成弯折。折弯过程中，转动架253与对应的支撑框251之间的转动轴的轴心线位于柔性屏30的中性层位置，柔性屏30的屏体层34位于所述中性层位置。
在折弯所述电子装置100时，也可以对第一框体21施加折弯的力，固定连接所述第一框体21上的转动件255朝向第二框体23顺时钟转动以带动对应的驱动齿轮2570顺时钟转动，驱动齿轮2570带动对应的第一传动齿轮2561逆时钟转动，第一传动齿轮2561带动对应的第二传动齿轮2563顺时钟转动，第二传动齿轮2563带动另一第二传动齿轮2563逆时钟转动，所述另一第二传动齿轮2563带动对应的另一第一传动齿轮2561顺时钟转动，所述另一第一传动齿轮2561带动对应的另一驱动齿轮2570逆时钟转动使第二框体21上的转动件255逆时钟转动，以实现转动机构25联动，从而使第一框体21与第二框体23相互邻近，以完成弯折。折弯过程中，转动架253与对应的支撑框251之间的转动轴的轴心线位于柔性屏30的中性层位置，柔性屏30的屏体层34位于所述中性层位置。
在折弯所述电子装置100时，也可以一同对第一框体21及第二框体23施加折弯的力，以连接于第一框体21和第二框体23上的转动件255朝相互邻近的方向转动。折弯过程中，转动架253与对应的支撑框251之间的转动轴的轴心线位于柔性屏30的中性层位置，柔性屏30的屏体层34位于所述中性层位置。
当需要展平电子装置100时，对电子装置100的第一框体21及第二框体23至少其中一个施加展平的力，能使连接于第一框体21和第二框体23上的转动件255朝相互远离的方向转动，每一转动件255与对应的支撑框251之间的转动中心轴的轴心位于柔性屏30的中性层位置，柔性屏30的屏体层34位于所述柔性屏30的中性层位置。具体的，固定于第二框体23上的转动件255朝远离第一框体21的方向顺时钟转动，带动转动件255的驱动齿轮2570顺时钟转动，驱动齿轮2570带动对应的第一传动齿轮2561逆时钟转动，第一传动齿轮2561带动对应的第二传动齿轮2563顺时钟转动，第二传动齿轮2563带动另一第二传动齿轮2563逆时钟转动，所述另一第二传动齿轮2563带动对应的另一第一传动齿轮2561顺时钟转动，所述另一第一传动齿轮2561带动对应的另一驱动齿轮2570逆时钟转动使转动机构25联动，从而使第一框体21与第二框体23相互远离，以完成展平。
在展平所述电子装置100时，也可以对第一框体21施加展平的力，固定于第一框体21上的转动件255朝远离第二框体23的方向逆时钟转动，使固定连接转动件255上的驱动齿轮2570逆时钟转动，驱动齿轮2570带动对应的第一传动齿轮2561顺时钟转动，第一传动齿轮2561带动对应的第二传动齿轮2563逆时钟转动，第二传动齿轮2563带动另一第二传动齿轮2563顺时钟转动，另一第二传动齿轮2563带动对应的另一第一传动齿轮2561逆时钟转动，另一第一传动齿轮2561带动对应的另一驱动齿轮2570顺时钟转动，从而使第一框体21与第二框体23相互远离，以完成展平。
展平所述电子装置100时，也可以一同对第一框体21及第二框体23施加展平的力，以使连接于第一框体21和第二框体23上的转动件255朝相互邻近的方向转动。
在转动机构25从展平状态至完全弯折状态之间的任一弯折状态，由于齿轮组件256的齿轮之间具有摩擦阻尼力，因此，在没有外力的作用下，转动机构25能在上述任一弯折状态下进行定位。
本发明由于采用直齿轮啮合的方式联动，相比于采用斜齿轮啮合联动的方式而言，不需要很高的制造精度，可有效地降低生产成本，提升生产效率。
在其他实施例中，每一个转动组件250中的支撑框251的导槽2517及第二转动筋2519均可以省略；连接件257上对应的延伸板2573及第二弧形槽2577均可以省略。
以上是本申请实施例的实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请实施例原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本申请的保护范围。

Claims (20)

  1. 一种柔性显示装置，包括柔性屏及转动机构，所述柔性屏包括可折弯区域，其特征在于，所述转动机构支撑于所述可折弯区域的背面，所述转动机构设置有平行间隔的两个转动中心轴，所述转动机构通过沿两个所述转动中心轴转动，所述可折弯区域随所述转动机构弯折，在所述柔性屏弯折的过程中，所述柔性屏的可折弯区域的屏体层位于所述柔性屏的中性层位置。
  2. 根据权利要求1所述的柔性显示装置，其特征在于，两个所述转动中心轴均为虚拟轴，两个所述虚拟轴均位于所述柔性屏的中性层位置。
  3. 根据权利要求1所述的柔性显示装置，其特征在于，所述转动机构包括两个转动组件，每一转动组件包括支撑框及转动连接于所述支撑框上的转动架，每一转动组件的支撑框与转动架之间的转动中心轴位于所述柔性屏的中性层位置。
  4. 根据权利要求3所述的柔性显示装置，其特征在于，两个转动组件的转动架与对应的支撑框之间的转动中心轴与所述转动机构的两个转动中心轴重合。
  5. 根据权利要求4所述的柔性显示装置，其特征在于，所述转动机构还包括位于两个所述转动组件之间的齿轮组件，每一转动架上设置有啮合于所述齿轮组件的驱动齿轮，其中一转动架的转动能带动驱动齿轮转动，以带动齿轮组件转动使另一转动架的驱动齿轮转动而带动所述另一转动架同步转动。
  6. 根据权利要求5所述的柔性显示装置，其特征在于，所述齿轮组件包括平行间隔的一对第一传动齿轮，以及位于一对第一传动齿轮之间的一对第二传动齿轮，一对第一传动齿轮分别啮合于一对转动组件的转动架的驱动齿轮，一对第二传动齿轮相互啮合，且一对第二传动齿轮分别啮合于一对第一传动齿轮。
  7. 根据权利要求6所述的柔性显示装置，其特征在于，每一支撑框面朝所述齿轮组件的端面开设有四个轴孔，每一第一传动齿轮套接于第一转轴，每一第二传动齿轮套接于第二转轴，第一转轴及第二转轴相对的两端分别可转动地连接于对应的轴孔内。
  8. 根据权利要求5所述的柔性显示装置，其特征在于，每一转动架包括转动连接于支撑框的转动件，以及连接于所述转动件的连接件，所述连接件包括沿转动中心轴的方向延伸的连接板，所述驱动齿轮设置于所述连接板远离所述转动件的一端。
  9. 根据权利要求8所述的柔性显示装置，其特征在于，所述连接件卡接、螺接或胶接于所述转动件；或者所述连接件与所述转动件一体成型制成。
  10. 根据权利要求8所述的柔性显示装置，其特征在于，所述驱动齿轮是扇形齿轮，所述扇形齿轮设置于所述连接板面朝所述转动件的一侧。
  11. 根据权利要求3所述的柔性显示装置，其特征在于，所述支撑框开设收容空间，所述转动件凸设转动地连接于所述收容空间的转动块，所述转动块与所述收容空间之间的转动轴心线与所述支撑框与所述转动架之间的转动中心轴重合。
  12. 根据权利要求11所述的柔性显示装置，其特征在于，所述收容空间内设置定位杆，所述定位杆相对的两端分别连接于所述收容空间相对的两个内壁，所述转动件定位于所述定位杆。
  13. 根据权利要求3所述的柔性显示装置，其特征在于，所述转动机构还包括外壳，所述外壳内相对的两端向内凸设两个连接块，两个转动组件的支撑框分别开设连接口，两个连接块收容并连接于两个连接口内。
  14. 根据权利要求1所述的柔性显示装置，其特征在于，所述柔性屏的可折弯区域弯曲时，所述可折弯区域的横截面呈U形或水滴形。
  15. 一种电子装置，其特征在于，其包括第一框体、第二框体及柔性显示装置，所述 柔性显示装置包括柔性屏及转动机构，所述柔性屏包括可折弯区域，所述转动机构设置有平行间隔的两个转动中心轴，所述转动机构连接于所述第一框体与第二框体之间，所述柔性显示装置的柔性屏覆盖于所述第一框体及所述第二框体上，所述转动机构支撑于所述可折弯区域的背面，所述转动机构通过沿两个所述转动中心轴转动，所述可折弯区域随所述转动机构弯折，在所述柔性屏弯折的过程中，所述柔性屏的可折弯区域的屏体层位于所述柔性屏的中性层位置。
  16. 根据权利要求15所述的电子装置，其特征在于，两个所述转动中心轴均为虚拟轴，两个所述虚拟轴均位于所述柔性屏的中性层位置。
  17. 根据权利要求15所述的电子装置，其特征在于，所述转动机构包括两个转动组件，每一转动组件包括支撑框及转动连接于所述支撑框上的转动架，每一转动组件的支撑框与转动架之间的转动中心轴位于所述柔性屏的中性层位置。
  18. 根据权利要求17所述的电子装置，其特征在于，两个转动组件的转动架与对应的支撑框之间的转动中心轴与所述转动机构的两个转动中心轴重合。
  19. 根据权利要求17所述的电子装置，其特征在于，所述转动机构还包括位于两个所述转动组件之间的齿轮组件，每一转动架上设置有啮合于所述齿轮组件的驱动齿轮，其中一转动架的转动能带动驱动齿轮转动，以带动齿轮组件转动使另一转动架的驱动齿轮转动而带动所述另一转动架同步转动。
  20. 根据权利要求15所述的电子装置，其特征在于，所述柔性屏还包括贴设于屏体层的背面的支撑膜、盖设于屏体层的正面的一盖板，以及层叠于支撑膜与转动机构之间的两个支撑板，当所述第一框体与所述第二框体呈展平状态时，两个所述支撑板的正面处于同一平面上。
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