WO2022252261A1 - 折叠显示装置 - Google Patents

折叠显示装置 Download PDF

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Publication number
WO2022252261A1
WO2022252261A1 PCT/CN2021/098980 CN2021098980W WO2022252261A1 WO 2022252261 A1 WO2022252261 A1 WO 2022252261A1 CN 2021098980 W CN2021098980 W CN 2021098980W WO 2022252261 A1 WO2022252261 A1 WO 2022252261A1
Authority
WO
WIPO (PCT)
Prior art keywords
front frame
display panel
display device
flexible
support
Prior art date
Application number
PCT/CN2021/098980
Other languages
English (en)
French (fr)
Inventor
冯子康
Original Assignee
武汉华星光电半导体显示技术有限公司
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 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US17/610,711 priority Critical patent/US20240090147A1/en
Priority to EP21854736.2A priority patent/EP4350671A1/en
Publication of WO2022252261A1 publication Critical patent/WO2022252261A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • H04M1/022—The hinge comprising two parallel pivoting axes
    • 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
    • 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
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/06—Hinges with pins with two or more pins
    • E05Y2999/00—
    • 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
    • H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/311—Flexible OLED

Definitions

  • the present application relates to the field of display technology, in particular to a foldable display device.
  • the support plate avoidance mechanism is usually designed in the folding mechanism of the inner foldable display device, and the avoidance action of the support plate is used as the flexible screen in the folded state. Leave enough room for the screen, and make the flexible screen form a "drop shape" in the bending area.
  • this design will create a large gap between the upper surface of the flexible screen in the bending area and the front frame, so that impurities such as dust can enter the inside of the flexible screen from the side, resulting in poor display of the flexible screen.
  • the current foldable display device has the problem that impurities enter the display device from the side gap of the display device, resulting in poor display.
  • the present application provides a foldable display device, which is used to alleviate the technical problem that impurities in the current foldable display device enter the display device from a side gap of the display device and cause poor display.
  • the present application provides a folding display device, which includes:
  • a housing including a first housing and a second housing
  • the bending mechanism is accommodated in the housing and connected to the first housing and the second housing, the bending mechanism includes: a bending part, a A first support part and a second support part arranged on one side corresponding to the first housing, a third support part and a fourth support part located on the other side of the bending part and corresponding to the second housing a supporting part, the first supporting part is connected to the first housing, the second supporting part is rotatably connected to one side of the bending part and the first supporting part, and the fourth supporting part The part is connected with the second housing, and the third support part is rotatably connected with the other side of the bending part and the fourth support part;
  • the flexible display panel is arranged in the casing and is located on one side of the first casing, the second casing and the bending mechanism;
  • the front frame structure is arranged on the side of the flexible display panel away from the casing and covers at least a partial area of the side of the flexible display panel, the front frame structure includes: a first A front frame portion, a second front frame portion connected to the second support portion, a third front frame portion connected to the third support portion, and a fourth front frame portion connected to the fourth support portion.
  • a fixed distance is maintained between the second support part and the second front frame part, and a fixed distance is maintained between the third support part and the third front frame part.
  • the second front frame portion includes a first front end portion and a first side end portion, the first front end portion is arranged corresponding to the light-emitting surface of the flexible display panel, and the first side end portion The end is arranged corresponding to the side of the flexible display panel;
  • the third front frame portion includes a second front end portion and a second side end portion, the second front end portion corresponds to the light-emitting surface of the flexible display panel, and the second side end portion corresponds to the light emitting surface of the flexible display panel. Side setting.
  • the first side end portion includes a first extension portion
  • the second front frame portion is connected to the second support portion through the first extension portion
  • the flexible a display panel is disposed between the first protruding portion and the first front end portion
  • the second side end part includes a second extension part, the third front frame part is connected to the third support part through the second extension part, and the flexible display panel is arranged on the second extension part. between the outlet portion and the second front end portion.
  • the folding display device of the present application further includes soft strips arranged on the light-emitting surface of the flexible display panel, the soft strips are arranged between the front frame structure and the flexible display panel, and are respectively connected with The second front frame part is connected to the third front frame part.
  • the first front frame part has a first hook body, and the first end of the soft strip has a first opening that fits and connects with the first hook body;
  • the fourth front frame portion has a second hook body, and the second end of the soft strip has a second opening that fits and connects with the second hook body.
  • the soft strips are respectively connected to the second front frame part and the third front frame part in a limiting manner.
  • At least one first positioning post is provided on the second front frame part, and the soft strip has a first positioning hole that fits and connects with each of the first positioning posts;
  • At least one second positioning post is provided on the third front frame part, and the soft strip has a second positioning hole that is mated and connected with each of the second positioning posts.
  • the foldable display device further includes: a dustproof plug corresponding to the bending portion and provided on a side of the flexible display panel.
  • the dust-proof plug includes a main body and a hook body, the main body is arranged corresponding to the side of the flexible display panel, and the hook body is arranged far from the soft strip.
  • the main body is arranged corresponding to the side of the flexible display panel, and the hook body is arranged far from the soft strip.
  • the folding display device further includes a back cover corresponding to the bending part, and the back cover is connected to the bending part;
  • the back cover is located on a side of the bending mechanism away from the flexible display panel, and the main body of the dust-proof plug is connected to the back cover.
  • the front frame structure further includes: a first flexible part connected between the first front frame part and the second front frame part, a first flexible part connected to the second front frame The second flexible part between the third front frame part and the third front frame part, and the third flexible part connected between the third front frame part and the fourth front frame part.
  • At least one of the first flexible part, the second flexible part and the third flexible part includes a hard layer and a soft layer.
  • the soft layer is disposed between the hard layer and the flexible display panel.
  • a side of the hard layer close to the soft layer is provided with a plurality of tooth-shaped grooves, and the soft layer is filled in the tooth-shaped grooves.
  • the cross-sectional shape of the tooth-shaped groove includes a square or a triangle.
  • the second support part includes a plurality of second support subparts, and two adjacent second support subparts are rotatably connected;
  • the second front frame part includes a plurality of second front frame subsections, each of the second front frame subsections is connected to the corresponding second support subsection;
  • the third supporting part includes a plurality of third supporting subparts, and two adjacent third supporting subparts are rotatably connected;
  • the third front frame part includes a plurality of third front frame subsections, and each third front frame subsection is connected to the corresponding third support subsection.
  • the bending mechanism further includes: a first rotating member and a second rotating member that are rotatably connected to the bending portion, connected to the first rotating member and A first torsion member rotating by a rotating member, a second torsion member connected to the second rotating member and rotating with the second rotating member, fixedly connected to the first support part and connected to the first torsion member a first sliding member that is slidably connected, and a second sliding member that is fixedly connected to the fourth support portion and is slidably connected to the second torsion member;
  • the first sliding member is disposed on a side of the first support portion away from the flexible display panel
  • the first torsion member is disposed on a side of the second support portion away from the flexible display panel
  • the The second torsion member is disposed on a side of the third support portion away from the flexible display panel
  • the second sliding member is disposed on a side of the fourth support portion away from the flexible display panel.
  • the bending mechanism further includes an intermediate support part that is movably connected to the bending part, and the intermediate support part is arranged between the bending part and the flexible display panel .
  • the present application also provides a folding display device, which includes:
  • a housing including a first housing and a second housing
  • the bending mechanism is accommodated in the housing and connected to the first housing and the second housing, the bending mechanism includes: a bending part, a A first support part and a second support part arranged on one side corresponding to the first housing, a third support part and a fourth support part located on the other side of the bending part and corresponding to the second housing a supporting part, the first supporting part is connected to the first housing, the second supporting part is rotatably connected to one side of the bending part and the first supporting part, and the fourth supporting part The part is connected with the second housing, and the third support part is rotatably connected with the other side of the bending part and the fourth support part;
  • the flexible display panel is arranged in the casing and is located on one side of the first casing, the second casing and the bending mechanism;
  • the front frame structure is arranged on the side of the flexible display panel away from the casing and covers at least a partial area of the side of the flexible display panel, the front frame structure includes: a first a front frame portion, a second front frame portion connected to the second support portion, a third front frame portion connected to the third support portion, and a fourth front frame portion connected to the fourth support portion;
  • a first flexible part is connected between the first front frame part and the second front frame part
  • a second flexible part is connected between the second front frame part and the third front frame part
  • the A third flexible part is connected between the third front frame part and the fourth front frame part
  • a dustproof plug is provided on the side of the second flexible part away from the flexible display panel, and the structure of the dustproof plug is The body presses against the second flexible part.
  • the present application provides a folding display device, which includes a housing, a bending mechanism disposed in the housing, a flexible display panel disposed in the housing and on the bending mechanism, and a flexible display panel disposed on the flexible display panel.
  • the front frame structure, the bending mechanism includes a first support part and a second support part rotatably connected to one side of the bending part, and a third support part and a fourth support part rotatably connected to the other side of the bending part part
  • the front frame structure includes a first front frame part connected to the first support part, a second front frame part connected to the second support part, a third front frame part connected to the third support part, and a fourth The support part is connected to the fourth front frame part.
  • the front frame structure of the folding display device is divided into four parts, and each part is connected to a corresponding supporting part, so that the front frame structure of the folding display device always maintains a fixed distance from the flexible display panel during the bending process. , effectively prevent impurities from entering the display device, and improve the reliability of the display device.
  • FIG. 1 is a schematic structural diagram of a folding display device provided by an embodiment of the present application.
  • FIG. 2 is an exploded view of a foldable display device provided by an embodiment of the present application.
  • Fig. 3 is an exploded view of the bending mechanism provided by the embodiment of the present application.
  • FIG. 4 is an exploded view of the combination of the front frame structure in the foldable display device when the foldable display device is in a flattened state.
  • Fig. 5 is a schematic diagram of the connection structure of the front frame structure, the dust plug and the soft strip in the foldable display device.
  • Fig. 6 is a schematic structural view of the dust plug provided by the embodiment of the present application.
  • Fig. 7 is a schematic structural diagram of the second front frame part and the third front frame provided by the embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a folding display device provided by an embodiment of the present application at a first viewing angle during a bending process.
  • FIG. 9 is a schematic structural diagram of a folding display device provided by an embodiment of the present application under a second viewing angle during a bending process.
  • FIG. 10 is a schematic structural diagram of a foldable display device provided in an embodiment of the present application in a fully folded state.
  • Fig. 11 is a schematic diagram of another embodiment of the folding display device provided by the embodiment of the present application.
  • Fig. 12 is a schematic diagram of another embodiment of the front frame structure provided by the embodiment of the present application.
  • Fig. 13 is a schematic diagram of another embodiment of the front frame structure provided by the embodiment of the present application.
  • An embodiment of the present application provides a foldable display device, which includes a housing, a bending mechanism disposed in the housing, and a flexible display panel disposed in the housing and on the bending mechanism , and the front frame structure arranged on the flexible display panel,
  • the bending mechanism includes a first support part and a second support part rotatably connected to one side of the bending part, and another support part rotatably connected to the bending part
  • the front frame structure includes a first front frame part connected with the first support part, a second front frame part connected with the second support part, and a third support part The third front frame part connected, and the fourth front frame part connected with the fourth support part.
  • the front frame structure of the folding display device is divided into four parts, and each part is respectively connected to a corresponding supporting part, so that the front frame structure of the folding display device is always kept in contact with the flexible display panel during the bending process.
  • the fixed spacing can effectively prevent impurities from entering the display device and improve the reliability of the display device.
  • FIG. 1 is a schematic structural diagram of a folding display device provided in an embodiment of the present application
  • FIG. 2 is an exploded view of the folding display device provided in an embodiment of the present application.
  • the foldable display device includes a housing 10, a bending mechanism 20 disposed in the housing 10, a flexible display panel 30 disposed in the housing 10 and on the bending mechanism 20, and a flexible display panel 30 disposed in the housing 10.
  • the front frame structure 40 on the flexible display panel 30 .
  • the housing 10 and the bending mechanism 20 form the back support surface of the flexible display panel 30 to support the conversion of the flexible display panel 30 between a flattened state and a fully folded state;
  • the structure 40 is arranged corresponding to the light-emitting surface of the flexible display panel 30, and is kept connected with the housing 10 and/or the bending mechanism 20, so as to fix the flexible display panel 30 between the front frame structure 40 and the bending mechanism 20. Between the housing 10 and the bending mechanism 20 .
  • the casing 10 includes a first casing 101 and a second casing 102 that are oppositely arranged, and the intersection areas of the first casing 101 and the second casing 102 respectively have a recessed area, and the first casing The recessed area of the body 101 and the recessed area of the second housing 102 abut to form a receiving groove for receiving the bending mechanism 20 .
  • the area of the first housing 101 except the recessed area and the area of the second housing 102 except the recessed area respectively form the support plane of the flexible display panel 30 .
  • the first housing 101 and the second housing 102 have the same size and shape, and the accommodating groove is correspondingly disposed in the middle area of the housing 10 .
  • the bending mechanism 20 is arranged in the receiving groove surrounded by the first housing 101 and the second housing 102, and when the folding display device is in a completely flattened state, the bending mechanism 20
  • the surface facing the flexible display panel 30 is coplanar with the surface of the casing 10 facing the flexible display panel 30 , so as to form a supporting plane of the flexible display panel 30 .
  • the bending mechanism 20 is connected with the first casing 101 and the second casing 102 .
  • FIG. 3 is an exploded view of the bending mechanism 20 provided by the embodiment of the present application.
  • the bending mechanism 20 includes: a bending part 205 , a The first supporting portion 201 and the second supporting portion 202 on one side of the bending portion 205 and corresponding to the first casing 101 are located on the other side of the bending portion 205 and corresponding to the second casing 102
  • the third supporting part 203 and the fourth supporting part 204, the first supporting part 201 is connected with the first housing 101
  • the second supporting part 202 is connected with the first supporting part 201 and the One side of the bending part 205 is rotatably connected
  • the fourth supporting part 204 is connected to the second housing 102
  • the third supporting part 203 is connected to the fourth supporting part 204 and the bending part respectively.
  • the other side of 205 is rotatably connected.
  • Both the first supporting part 201 and the second supporting part 202 are sleeved on a rotating shaft (not shown in the figure), and the third supporting part 203 and the fourth supporting part 204 are both sleeved on On another rotating shaft (not shown in the figure), wherein, the second supporting part 202 and the first supporting part 201 are rotatably connected through the rotating shaft, and the third supporting part 203 and the The fourth supporting part 204 is rotatably connected through the rotation shaft, wherein the rotation shafts include but not limited to pin shafts.
  • the second support part 202 includes a plurality of second support sub-parts, and two adjacent second support sub-parts are rotatably connected;
  • the third support part 203 includes a plurality of third support sub-parts The sub-sections are rotatably connected between two adjacent third support sub-sections.
  • the second support part 202 and the third support part 203 are further designed as a rotatable connection structure of a plurality of support sub-parts, which is beneficial to make the bending mechanism 20 form a delicate structure in a fully folded state. drop-shaped structure.
  • the second supporting portion 202 and the first supporting portion 201 are arranged on one side of the bending portion 205, and the third supporting portion 203 and the fourth supporting portion 204 are arranged on the other side of the bending portion 205.
  • the second supporting part 202 is rotatably connected to one side of the bending part 205
  • the third supporting part 203 is rotatably connected to the other side of the bending part 205
  • the The second support part 202 and the first support part 201 and the third support part 203 and the fourth support part 204 are respectively rotatably connected through a rotating shaft, which increases the degree of freedom of rotation of the bending mechanism 20.
  • the second supporting part 202, the first supporting part 201, the third supporting part 203 and the fourth supporting part 204 are inclined to form a wedge shape, which is
  • the flexible display panel 30 in the foldable display device leaves a larger accommodation space for the bending area in the folded state.
  • the bending mechanism 20 also includes a rotating member 211, a first torsion member 208 and a second torsion member 209 that are connected to the rotating member 211 and rotate with the rotating member 211, and are slidably connected to the first torsion member 208
  • the first sliding member 206 and the second sliding member 207 slidably connected with the second torsion member 209, the first sliding member 206 is fixedly connected with the first supporting part 201, and the second sliding member 207 is fixedly connected with the fourth supporting part 204 .
  • the rotating member 211 is rotatably connected to the bending portion 205 .
  • the rotating member 211 includes four gear shafts meshing sequentially, and one end of each gear shaft is arranged in a rotating groove on the bending portion 205; the first torsion member 208 and the The second torsion member 209 is respectively connected with the two outermost opposite gear shafts, and can rotate with the gear shafts.
  • the first torsion member 208 includes a first sliding portion and a first connecting end extending from one end of the first sliding portion
  • the second torsion member 209 includes a second sliding portion and a first connecting end extending from one end of the first sliding portion.
  • a second connecting end extending from one end of the first sliding part; wherein, the first sliding part is slidably connected to the first sliding member 206, and the first connecting end is provided with a hole for the rotating member 211 to pass through
  • the second sliding portion is slidably mounted on the second sliding member 207 , and the second connecting end is provided with a hole through which the rotating member 211 passes.
  • the first sliding part 206 is provided with a first chute
  • the second sliding part 207 is provided with a second chute
  • the first sliding part is slidably installed in the first chute
  • the first sliding part is slidably installed in the first chute.
  • the two sliding parts are slidably installed in the second sliding groove.
  • the bending part 205 includes an arc chute
  • the second support part 202 includes a first slider
  • the third support part 203 includes a second slider, wherein the first slider and the first slider The two sliders rotate in the arc-shaped chute.
  • the bending mechanism 20 further includes an intermediate supporting portion 210 movably connected to the bending portion 205 , and the intermediate supporting portion 210 is disposed between the bending portion 205 and the flexible display panel 30 .
  • the bending mechanism 20 further includes a support member 216 , the support member 216 is connected to the rotating member 211 and can rotate with the rotating member 211 .
  • the supporting member 216 supports the middle supporting part 210 .
  • the support member 216 may be a cam member; when the foldable display device is not fully unfolded, the non-cam portion of the support member 216 corresponds to the middle support portion 210; when the folded display device When the display device transitions from the non-flattened state to the flattened state, the support member 216 rotates with the rotating member 211, and the cam portion of the support member 216 gradually supports the middle support portion 210 to finally flatten. Lift the middle supporting part 210 under the state.
  • the bending mechanism 20 also includes a support frame 212, a torsion cam 213, a spring 214 and a limit frame 215; the support frame 212 is connected to the rotating member 211, and does not rotate with the rotating member 211, the support The frame 212 is located between the bending portion 205 and the first torsion member 208 and the second torsion member 209; the torsion cam 213 is provided with a Cooperating cam structure, the torsion cam 213 is arranged on the side of the first torsion member 208 and the second torsion member 209 away from the support frame 212; one end of the spring 214 abuts against the torsion cam 213 The other end abuts against the limiting frame 215 ; the support member 216 is disposed on the side of the limiting frame 215 away from the spring 214 .
  • the foldable display device further includes a rear cover 70 corresponding to the bending portion 205 , and the rear cover 70 is connected to the bending portion 205 .
  • the rear cover 70 is disposed on a side of the bending mechanism 20 away from the flexible display panel 30 .
  • the rear cover 70 is used to cover and protect the bending mechanism 20 when the folding display device is in a bent state.
  • the flexible display panel 30 is disposed in the casing 10 and located on the same side of the first casing 101 , the second casing 102 and the bending mechanism 20 .
  • the flexible display panel 30 is flexible and bendable at least in a region corresponding to the bending mechanism 20 .
  • the flexible display panel 30 may be an organic light emitting diode display panel, or other forms of flexible display panels.
  • the front frame structure 40 is disposed on a side of the flexible display panel 30 away from the housing 10 and covers at least a partial area of the side of the flexible display panel 30 .
  • the front frame structure 40 includes: a first front frame portion 401 connected to the first support portion 201, a second front frame portion 402 connected to the second support portion 202, and a second front frame portion 402 connected to the third support portion 203.
  • the connected third front frame part 403 and the fourth front frame part 404 connected with the fourth support part 204 .
  • the second front frame part 402 can move with the second support part 202 without being limited by the movement state of the first front frame part 401; the third front frame part 403 can move with the first front frame part 403
  • the movement of the three support parts 203 is not limited by the movement state of the fourth front frame part 404 .
  • the second front frame part 402 includes a plurality of second front frame subsections, each of which is connected to the corresponding second support subsection; the third front frame part 403 A plurality of third front frame subsections are included, each of the third front frame subsections is connected to the corresponding third support subsection.
  • the front frame structure 40 of the folding display device is set as four independent parts, and each part is connected to a corresponding supporting part, so that the front frame structure 40 of the folding display device can Always maintain a fixed distance from the flexible display panel 30 to avoid impurities easily entering the display device due to the expansion of the distance between the front frame structure and the flexible display panel during the bending process, effectively reducing the risk of impurities entering the display device , improving the reliability of the display device.
  • first front frame part 401 is connected to the first support part 201
  • second front frame part 402 is connected to the second support part 202
  • third front frame part 403 is connected to the first support part 201.
  • the third support part 203 is connected
  • the fourth front frame part 404 is connected to the fourth support part 204, so that a fixed distance is maintained between the first support part 201 and the first front frame part 401, so A fixed distance is maintained between the second support part 202 and the second front frame part 402, a fixed distance is maintained between the third support part 203 and the third front frame part 403, and the fourth support part 204
  • a fixed distance is maintained between the fourth front frame portion 404, so as to ensure that the front frame structure 40 of the foldable display device can effectively cover the flexible display panel 30 no matter whether the foldable display device is in the folded state or the unfolded state, and blocks external impurities. entry.
  • the foldable display device further includes a soft strip 60 disposed on a side of the flexible display panel 30 .
  • the soft strip 60 is disposed between the front frame structure 40 and the flexible display panel 30 , and is connected to the second front frame part 402 and the third front frame part 403 respectively.
  • the soft strip 60 is made of flexible materials. During the bending process of the foldable display device, the soft strip 60 is bent along with the flexible display panel 30 to further prevent external impurities from entering into the display device.
  • the foldable display device further includes a dustproof plug 50 corresponding to the bent portion 205 , and the dustproof plug 50 is fixedly connected to the rear cover 70 .
  • the dustproof plug 50 is used to further fix the soft strip 60 on the flexible display panel 30 to improve the dustproof efficiency of the soft strip 60, and the dustproof plug 50 itself can also block a part External impurities enter the interior of the foldable display device.
  • Fig. 4 is a combined exploded view of the front frame structure in the folding display device in the flat state
  • Fig. 5 is the front frame structure, anti- Schematic diagram of the connection structure between the dust plug and the soft strip.
  • the first front frame part 401, the second front frame part 402, the third front frame part 403 and the fourth front frame part 404 in the front frame structure 40 are set as four independent and mutually separated A front frame member, but not limited to this arrangement, in other embodiments, the first front frame part 401, the second front frame part 402, the third front frame part 403 and the fourth front frame part 404 can be connected to each other They are connected through a connecting structure, so that the front frame structure 40 becomes an integral structure.
  • the soft strip 60 is set as an independent component of the front frame structure 40, and in other embodiments, the soft strip 60 can also be integrally formed on the front frame structure 40 internal.
  • the front frame structure 40 is disposed around the edge of the light-emitting surface of the flexible display panel 30 , and at least part of the front frame structure 40 covers the side of the flexible display panel 30 .
  • FIG. 7 is a schematic structural diagram of the second front frame part and the third front frame provided by the embodiment of the present application.
  • the second front frame portion 402 includes a first front end portion Q1 and a first side end portion C1, the first front end portion Q1 and the first side end portion C1 are integrally formed, and the first front end portion Q1 corresponds to The light emitting surface of the flexible display panel 30 is disposed, and the first side end C1 is disposed corresponding to the side of the flexible display panel 30 .
  • the third front frame portion 403 includes a second front end portion Q2 and a second side end portion C2, the second front end portion Q2 and the second side end portion C2 are integrally formed, and the second front end portion Q2 corresponds to The light emitting surface of the flexible display panel 30 is disposed, and the second side end portion C2 is disposed corresponding to the side of the flexible display panel 30 .
  • the first front end portion Q1 and the first side end portion C1 respectively cover the light-emitting surface and the side surface of the flexible display panel 30 to form a covering structure for the edge of the flexible display panel 30;
  • the two front end portions Q2 and the second side end portion C2 also respectively cover the light emitting surface and the side surface of the flexible display panel 30 to form a wrapping structure for the edge of the flexible display panel 30 .
  • first side end portion C1 includes a first extension portion S1
  • second front frame portion 402 is connected to the second support portion 202 through the first extension portion S1.
  • first protruding portion S1 is a pin-shaped structure or a hook-shaped structure
  • second supporting portion 202 is provided with a hole-shaped structure corresponding to the first protruding portion S1, so as to realize the The connection between the first protruding part S1 and the second supporting part 202 .
  • the second side end portion C2 includes a second extension portion S2, and the third front frame portion 403 is connected to the third support portion 203 through the second extension portion S2.
  • the second protruding portion S2 is a pin-shaped structure or a hook-shaped structure
  • the third supporting portion 203 is provided with a hole-shaped structure corresponding to the second protruding portion S2, so as to realize the The connection between the second protruding part S2 and the third supporting part 203 .
  • first front frame part 401 and the fourth front frame part 404 can be respectively connected to the first support part 201 and the fourth support part 204 through a buckle structure, or connected to the first
  • the housing 101 is connected to the second housing 102 to realize the fixing of the first front frame part 401 and the fourth front frame part 404 .
  • the soft strip 60 is arranged along the edge of the light-emitting surface of the flexible display panel 30 , and is located between the front frame structure 40 and the flexible display panel 30 .
  • the opposite ends of the soft strip 60 are respectively provided with a first opening 601 and a second opening 602, and the end of the first front frame part 401 close to the second front frame part 402 is provided with a first hook 411, the fourth front frame part 404 is provided with a second hook body 414 at one end close to the third front frame part 403, and the first hook body 411 is connected to the soft strip through the first opening 601 60, the second hook 414 is connected to the other end of the soft strip 60 through the second opening 602, so that the soft strip 60 is connected to the first front frame part 401 and the Between the fourth front frame part 404.
  • the area between the first opening 601 and the second opening 602 of the soft strip 60 is also provided with at least one first positioning hole 603 and at least one second positioning hole 604 , and on the second front frame part 402
  • a first positioning post 412 corresponding to the first positioning hole 603 is provided, a second positioning post 413 corresponding to the second positioning hole 604 is provided on the third front frame part 403, and the first A positioning post 412 is connected to the soft strip 60 through the first positioning hole 603, and the second positioning post 413 is connected to the soft strip 60 through the second positioning hole 604, so that the soft strip 60 is fixed between the front frame structure 40 and the flexible display panel 30 .
  • FIG. 6 is a schematic structural view of the dust plug provided by the embodiment of the present application.
  • the dust plug 50 includes a main body 501 and a hook body 502, the main body 501 and the hook body 502 are integrally formed, and the hook body 502 protrudes from the contour surface of the main body 501 to form a hook shape structure.
  • the dust plug 50 is disposed corresponding to the bending portion 205 and is located between the second front frame portion 402 and the third front frame portion 403 .
  • the main body portion 501 is disposed on the side of the flexible display panel 30
  • the hook body portion 502 is disposed corresponding to the light emitting surface of the flexible display panel 30
  • the main body portion 501 is fixedly connected to the rear cover 70 through the opening on the rear cover 70 , so that the hook body portion 502 is squeezed and fixed to the flexible display panel 30 and the soft strip 60 Effect.
  • FIG. 8 is a schematic structural view of the foldable display device provided by the embodiment of the present application at the first viewing angle during the bending process.
  • FIG. 9 is a schematic view of the foldable display device provided by the embodiment of the present Schematic diagram of the structure under the second viewing angle during the bending process.
  • the distance between the front frame structure 40 and the flexible display panel 30 is always kept constant, especially the second front frame portion 402 and the distance between the third front frame portion 403 and the flexible display panel 30 is kept constant. It should be understood that, by connecting the second front frame part 402 with the second supporting part 202 and connecting the third front frame part 403 with the third supporting part 203, the first The two front frame parts 402 move synchronously with the second support part 202, and the third front frame part 403 moves synchronously with the third support part 203, thus avoiding the front frame structure 40 and the front frame structure 40 during the bending process. The distance between the flexible display panels 30 increases.
  • the soft strip 60 is always fixed between the front frame structure 40 and the flexible display panel 30 to further prevent external impurities from entering from the side of the flexible display panel 30 Display unit interior.
  • the dust plug 50 always presses on the soft strip 60 to limit the distance between the middle area of the soft strip 60 and the flexible display panel 30 Increase, to further improve the ability of the side of the foldable display device to block external impurities.
  • FIG. 10 is a schematic structural diagram of a foldable display device provided in an embodiment of the present application in a fully folded state.
  • the first support part 201 and the fourth support part 204 are in a parallel or nearly parallel state; the second support part 202 and the third support part 203 There is a certain inclination angle between them, forming a wedge-shaped accommodation space; under the support of the bending mechanism 20, the bending area of the flexible display panel 30 forms a drop-shaped structure.
  • the first front frame part 401 , the second front frame part 402 , the third front frame part 403 and the fourth front frame part 404 are respectively connected with the first support part 201 and the second support part 202 , the connection relationship between the third support part 203 and the fourth support part 204 fixes the flexible display panel 30 and the soft strip 60 in the folded state on the bending mechanism 20 .
  • the dustproof plug 50 fixes the flexible display panel 30 and the soft strip 60 on the middle supporting part 210 through the connection relationship with the back cover 70 .
  • the soft strip 60 is described as a separate component independent of the front frame structure 40, but it is not limited to this structure, and in some other embodiments, the soft strip 60 can also be combined with the first
  • the front frame part 401 and the fourth front frame part 404 are integrally formed to become a part of the soft area in the front frame structure 40, and achieve the same technical effect as the above-mentioned embodiment, and other structural features in the folding display device are the same as the above-mentioned embodiment Same, no more details here.
  • FIG. 11 is a schematic diagram of another embodiment of the folding display device provided by the embodiment of the present application.
  • the foldable display device has the same or similar structural features as the foldable display device in the above-mentioned embodiments, and its difference lies only in the features of the front frame structure 40 .
  • the difference between this embodiment and the above-mentioned embodiments will be described in detail below, and for the omitted or unspecified details, please refer to the description of the above-mentioned embodiments.
  • the front frame structure 40 is arranged on the side of the flexible display panel 30 away from the bending mechanism, and the front frame structure 40 includes a first front frame portion 401, a second front frame portion 402, a second front frame portion Three front frame parts 403, a fourth front frame part 404, and a first flexible part 405 connected between the first front frame part 401 and the second front frame part 402, connected to the second front frame
  • the first flexible part 405 , the second flexible part 406 and the third flexible part 407 are close to the flexible display panel 30 , And bend together with the flexible display panel 30 , so as to ensure a fixed distance between the front frame structure 40 and the flexible display panel 30 , thereby preventing external impurities from entering into the display device during the bending process.
  • the first flexible part 405 includes a first hard layer Y1 and a first soft layer R1, the first hard layer Y1 and the first soft layer R1 are distributed in a stacked manner, and the first soft layer Layer R1 is located between the first hard layer Y1 and the flexible display panel 30;
  • the second flexible part 406 includes a second hard layer Y2 and a second soft layer R2, and the second hard layer Y2 and the second soft layer R2 are laminated, and the second soft layer R2 is located between the second hard layer Y2 and the flexible display panel 30;
  • the third flexible part 407 includes The third hard layer Y3 and the third soft layer R3, the third hard layer Y3 and the third soft layer R3 are stacked, and the third soft layer R3 is located on the third hard layer R3 between the layer Y3 and the flexible display panel 30 .
  • the first hard layer Y1, the second hard layer Y2, and the third hard layer Y3 are connected to the first front frame part 401, the second front frame part 402, the The third front frame part 403 and the fourth front frame part 404 are integrally formed by using the same material.
  • the first soft layer R1, the second soft layer R2 and the third soft layer R3 are all made of flexible materials to achieve their bendable properties.
  • FIG. 13 is a schematic diagram of another embodiment of the front frame structure provided by the embodiment of the present application.
  • the first flexible part 405 includes a stacked first hard layer Y1 and a first soft layer R1, and the first soft layer R1 is located between the first hard layer Y1 and the flexible display panel 30 Between;
  • the second flexible part 406 includes a second hard layer Y2 and a second soft layer R2 stacked, and the second soft layer R2 is located between the second hard layer Y2 and the flexible Between the display panels 30;
  • the third flexible part 407 includes a third hard layer Y3 and a third soft layer R3 stacked, and the third soft layer R3 is located between the third hard layer Y3 and the third soft layer R3 between the flexible display panels 30 .
  • the side of the first hard layer Y1 close to the first soft layer R1 is provided with a plurality of first tooth-shaped grooves, and the first soft layer R1 is filled in the first tooth-shaped grooves;
  • the side of the second hard layer Y2 close to the second soft layer R2 is provided with a plurality of second tooth-shaped grooves, and the second soft layer R2 is filled in the second tooth-shaped grooves;
  • a side of the third hard layer Y3 close to the third soft layer R3 is provided with a plurality of third tooth-shaped grooves, and the third soft layer R3 is filled in the third tooth-shaped grooves.
  • this embodiment also It is possible to increase the bonding force between the first hard layer Y1 and the first soft layer R1, the bonding force between the second hard layer Y2 and the second soft layer R2, and The binding force between the third hard layer Y3 and the third soft layer R3.
  • cross-sectional shapes of the first toothed groove, the second toothed groove and the third toothed groove may be square or triangular or other shapes.
  • first hard layer Y1, the second hard layer Y2, the third hard layer Y3 and the first front frame part 401, the second front frame part 402, the first The three front frame parts 403 and the fourth front frame part 404 can be integrally formed using the same material.
  • the first soft layer R1, the second soft layer R2 and the third soft layer R3 are all made of flexible materials to achieve their bendable properties.
  • the folding display device includes: a housing, a bending mechanism disposed in the housing, a flexible display panel disposed in the housing and on the bending mechanism , and the front frame structure arranged on the flexible display panel
  • the bending mechanism includes a first support part and a second support part rotatably connected to one side of the bending part, and another support part rotatably connected to the bending part
  • the front frame structure includes a first front frame part connected with the first support part, a second front frame part connected with the second support part, and a third support part
  • the connected third front frame part and the fourth front frame part connected with the fourth support part, a soft strip can be arranged between the front frame structure and the flexible display panel, or a flexible strip can be connected between each part of the front frame structure.
  • the front frame structure of the folding display device is divided into four parts, and each part is respectively connected to a corresponding supporting part, so that the front frame structure of the folding display device is always kept in contact with the flexible display panel during the bending process.
  • the fixed spacing can effectively prevent impurities from entering the display device, and the arrangement of the soft strips or flexible parts further improves the ability of the front frame structure to block impurities, thereby improving the reliability of the display device.

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Abstract

一种折叠显示装置，包括弯折机构（20）和前框结构（40），弯折机构（20）包括可转动连接于弯折部（205）一侧的第一支持部（201）和第二支持部（202）、可转动连接于弯折部（205）另一侧的第三支持部（203）和第四支持部（204），前框结构（40）包括与第一支持部（201）连接的第一前框部（401）、与第二支持部（202）连接的第二前框部（402）、与第三支持部（203）连接的第三前框部（403）、与第四支持部（204）连接的第四前框部（404）。

Description

折叠显示装置 技术领域
本申请涉及显示技术领域，尤其涉及一种折叠显示装置。
 背景技术
目前，可折叠显示设备已成为显示行业的一大发展方向。为了解决内折叠显示设备在折叠过程中其前后机构表面与柔性屏尺寸不匹配的问题，通常在内折叠显示设备的折叠机构中设计支撑板避让机构，利用支撑板的避让动作为折叠状态的柔性屏留出足够的容置空间，并且使柔性屏在弯折区形成“水滴型”。但是，这种设计会使弯折区的柔性屏上表面与前框之间产生较大的间隙，从而使得灰尘等杂质得以从侧面进入柔性屏内部，导致柔性屏出现显示不良的问题。
 技术问题
目前的折叠显示装置存在杂质从显示装置的侧面间隙进入显示装置内部而导致显示不良的问题。
 技术解决方案
本申请提供一种折叠显示装置，用于缓解目前折叠显示装置存在的杂质从显示装置的侧面间隙进入显示装置内部而导致显示不良的技术问题。
本申请提供一种折叠显示装置，其包括：
壳体，包括第一壳体和第二壳体；
弯折机构，所述弯折机构容纳在所述壳体中并连接到所述第一壳体和所述第二壳体，所述弯折机构包括：弯折部、位于所述弯折部一侧且与所述第一壳体对应设置的第一支持部和第二支持部、位于所述弯折部另一侧且与所述第二壳体对应设置的第三支持部和第四支持部，所述第一支持部与所述第一壳体连接，所述第二支持部分别与所述弯折部的一侧和所述第一支持部可转动连接，所述第四支持部与所述第二壳体连接，所述第三支持部分别与所述弯折部的另一侧和所述第四支持部可转动连接；
柔性显示面板，所述柔性显示面板设置在所述壳体中，且位于所述第一壳体、所述第二壳体和所述弯折机构的一侧；
前框结构，设置在所述柔性显示面板远离所述壳体的一侧且覆盖所述柔性显示面板侧面的至少部分区域，所述前框结构包括：与所述第一支持部连接的第一前框部、与所述第二支持部连接的第二前框部、与所述第三支持部连接的第三前框部、与所述第四支持部连接的第四前框部。
在本申请的折叠显示装置中，所述第二支持部与所述第二前框部之间保持固定间距，所述第三支持部与所述第三前框部之间保持固定间距。
在本申请的折叠显示装置中，所述第二前框部包括第一前端部和第一侧端部，所述第一前端部对应所述柔性显示面板的出光面设置，所述第一侧端部对应所述柔性显示面板的侧面设置；
所述第三前框部包括第二前端部和第二侧端部，所述第二前端部对应所述柔性显示面板的出光面设置，所述第二侧端部对应所述柔性显示面板的侧面设置。
在本申请的折叠显示装置中，所述第一侧端部包括第一伸出部，所述第二前框部通过所述第一伸出部与所述第二支持部连接，所述柔性显示面板设置在所述第一伸出部和所述第一前端部之间；
所述第二侧端部包括第二伸出部，所述第三前框部通过所述第二伸出部与所述第三支持部连接，所述柔性显示面板设置在所述第二伸出部和所述第二前端部之间。
在本申请的折叠显示装置中，还包括设置在所述柔性显示面板出光面上的软质条，所述软质条设置在所述前框结构和所述柔性显示面板之间，并且分别与所述第二前框部和所述第三前框部连接。
在本申请的折叠显示装置中，所述第一前框部具有第一钩体，所述软质条的第一端具有与所述第一钩体配合连接的第一开孔；
所述第四前框部具有第二钩体，所述软质条的第二端具有与所述第二钩体配合连接的第二开孔。
在本申请的折叠显示装置中，所述软质条还分别与所述第二前框部和所述第三前框部限位连接。
在本申请的折叠显示装置中，所述第二前框部上设置有至少一个第一定位柱，所述软质条具有与每个所述第一定位柱配合连接的第一定位孔；
所述第三前框部上设置有至少一个第二定位柱，所述软质条具有与每个所述第二定位柱配合连接的第二定位孔。
在本申请的折叠显示装置中，所述折叠显示装置还包括：与所述弯折部对应且设置在所述柔性显示面板侧面的防尘塞。
在本申请的折叠显示装置中，所述防尘塞包括主体部和钩体部，所述主体部对应所述柔性显示面板的侧面设置，所述钩体部设置于所述软质条的远离所述柔性显示面板的一侧。
在本申请的折叠显示装置中，所述折叠显示装置还包括与所述弯折部对应设置的后盖，所述后盖与所述弯折部连接；
所述后盖位于所述弯折机构远离所述柔性显示面板的一侧，所述防尘塞的主体部与所述后盖连接。
在本申请的折叠显示装置中，所述前框结构还包括：连接于所述第一前框部与所述第二前框部之间的第一柔性部、连接于所述第二前框部与所述第三前框部之间的第二柔性部、以及连接于所述第三前框部与所述第四前框部之间的第三柔性部。
在本申请的折叠显示装置中，所述第一柔性部、所述第二柔性部和所述第三柔性部的至少其中之一包括硬质层和软质层。
在本申请的折叠显示装置中，所述软质层设置于所述硬质层与所述柔性显示面板之间。
在本申请的折叠显示装置中，所述硬质层靠近所述软质层的一侧设置有多个齿形槽，所述软质层填充于所述齿形槽中。
在本申请的折叠显示装置中，所述齿形槽的截面形状包括方形或三角形。
在本申请的折叠显示装置中，所述第二支持部包括多个第二支撑子部，相邻两个所述第二支撑子部之间可转动连接；
所述第二前框部包括多个第二前框子部，每个所述第二前框子部与对应的所述第二支撑子部连接；
所述第三支持部包括多个第三支撑子部，相邻两个所述第三支撑子部之间可转动连接；
所述第三前框部包括多个第三前框子部，每个所述第三前框子部与对应的所述第三支撑子部连接。
在本申请的折叠显示装置中，所述弯折机构还包括：与所述弯折部可转动连接的第一转动件和第二转动件、与所述第一转动件连接且随所述第一转动件转动的第一扭力件、与所述第二转动件连接且随所述第二转动件转动的第二扭力件、与所述第一支持部固定连且与所述第一扭力件滑动连接的第一滑动件、以及与所述第四支持部固定连且与所述第二扭力件滑动连接的第二滑动件；
所述第一滑动件设置于所述第一支持部远离所述柔性显示面板的一侧，所述第一扭力件设置于所述第二支持部远离所述柔性显示面板的一侧，所述第二扭力件设置于所述第三支持部远离所述柔性显示面板的一侧，所述第二滑动件设置于所述第四支持部远离所述柔性显示面板的一侧。
在本申请的折叠显示装置中，所述弯折机构还包括与所述弯折部可活动连接的中间支持部，所述中间支持部设置于所述弯折部与所述柔性显示面板之间。
本申请还提供一种折叠显示装置，其包括：
壳体，包括第一壳体和第二壳体；
弯折机构，所述弯折机构容纳在所述壳体中并连接到所述第一壳体和所述第二壳体，所述弯折机构包括：弯折部、位于所述弯折部一侧且与所述第一壳体对应设置的第一支持部和第二支持部、位于所述弯折部另一侧且与所述第二壳体对应设置的第三支持部和第四支持部，所述第一支持部与所述第一壳体连接，所述第二支持部分别与所述弯折部的一侧和所述第一支持部可转动连接，所述第四支持部与所述第二壳体连接，所述第三支持部分别与所述弯折部的另一侧和所述第四支持部可转动连接；
柔性显示面板，所述柔性显示面板设置在所述壳体中，且位于所述第一壳体、所述第二壳体和所述弯折机构的一侧；
前框结构，设置在所述柔性显示面板远离所述壳体的一侧且覆盖所述柔性显示面板侧面的至少部分区域，所述前框结构包括：与所述第一支持部连接的第一前框部、与所述第二支持部连接的第二前框部、与所述第三支持部连接的第三前框部、与所述第四支持部连接的第四前框部；
所述第一前框部与所述第二前框部之间连接有第一柔性部，所述第二前框部与所述第三前框部之间连接有第二柔性部，所述第三前框部与所述第四前框部之间连接有第三柔性部，所述第二柔性部远离所述柔性显示面板的一侧设置有防尘塞，所述防尘塞的构体部压在所述第二柔性部上。
 有益效果
本申请提供一种折叠显示装置，该折叠显示装置包括壳体、设置于壳体中的弯折机构、设置于壳体中且位于弯折机构上的柔性显示面板、以及设置于柔性显示面板上的前框结构，该弯折机构包括可转动连接于弯折部一侧的第一支持部和第二支持部、以及可转动连接于弯折部另一侧的第三支持部和第四支持部，该前框结构包括与第一支持部连接的第一前框部、与第二支持部连接的第二前框部、与第三支持部连接的第三前框部、以及与第四支持部连接的第四前框部。本申请通过将折叠显示装置的前框结构设置为四个部分，每一部分分别与对应的一个支持部连接，使得折叠显示装置在弯折过程中前框结构始终与柔性显示面板之间保持固定间距，有效阻挡杂质进入显示装置内部，提高显示装置的可靠性。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是申请的一些实施例，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附图。
图1是本申请实施例提供的折叠显示装置的结构示意图。
图2是本申请实施例提供的折叠显示装置的爆炸图。
图3是本申请实施例提供的弯折机构的爆炸图。
图4是折叠显示装置在展平状态下前框结构在折叠显示装置中的组合爆炸图。
图5是折叠显示装置中的前框结构、防尘塞与软质条的连接结构示意图。
图6是本申请实施例提供的防尘塞的结构示意图。
图7是本申请实施例提供的第二前框部和第三前框的结构示意图。
图8是本申请实施例提供的折叠显示装置在弯折过程中的第一视角下的结构示意图。
图9是本申请实施例提供的折叠显示装置在弯折过程中的第二视角下的结构示意图。
图10是本申请实施例提供的折叠显示装置在完全折叠状态下的结构示意图。
图11是本申请实施例提供的折叠显示装置的另一种实施例方式的示意图。
图12是本申请实施例提供的前框结构的另一种实施方式的示意图。
图13是本申请实施例提供的前框结构的又一种实施方式的示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。
本申请实施例提供一种折叠显示装置，该折叠显示装置包括壳体、设置于所述壳体中的弯折机构、设置于所述壳体中且位于所述弯折机构上的柔性显示面板、以及设置于所述柔性显示面板上的前框结构，所述弯折机构包括可转动连接于弯折部一侧的第一支持部和第二支持部、以及可转动连接于弯折部另一侧的第三支持部和第四支持部，所述前框结构包括与第一支持部连接的第一前框部、与第二支持部连接的第二前框部、与第三支持部连接的第三前框部、以及与第四支持部连接的第四前框部。本申请实施例通过将折叠显示装置的前框结构设置为四个部分，每一部分分别与对应的一个支持部连接，使得折叠显示装置在弯折过程中前框结构始终与柔性显示面板之间保持固定间距，有效阻挡杂质进入显示装置内部，提高显示装置的可靠性。
下面结合具体实施例方式对本申请提供的折叠显示装置的特征进行说明。
请参阅图1和图2，图1是本申请实施例提供的折叠显示装置的结构示意图，图2是本申请实施例提供的折叠显示装置的爆炸图。
所述折叠显示装置包括壳体10、设置于所述壳体10中的弯折机构20、设置于所述壳体10中且位于所述弯折机构20上的柔性显示面板30、以及设置于所述柔性显示面板30上的前框结构40。其中，所述壳体10和所述弯折机构20形成所述柔性显示面板30的背部支撑面，以支撑所述柔性显示面板30在展平状态和完全折叠状态之间转换；所述前框结构40对应所述柔性显示面板30的出光面设置，并与所述壳体10和/或所述弯折机构20保持连接，以将所述柔性显示面板30固定在所述前框结构40与所述壳体10及所述弯折机构20之间。
所述壳体10包括相对设置的第一壳体101和第二壳体102，所述第一壳体101和所述第二壳体102的交接区域分别具有一个凹陷区域，所述第一壳体101的凹陷区域和所述第二壳体102的凹陷区域对接形成一个用于容纳所述弯折机构20的容纳槽。所述第一壳体101除其凹陷区域以外的区域以及所述第二壳体102除其凹陷区域以外的区域分别形成所述柔性显示面板30的支撑平面。可选地，所述第一壳体101和所述第二壳体102具有相同的大小和形状，所述容纳槽对应设置于所述壳体10的中间区域。
所述弯折机构20设置于所述第一壳体101和所述第二壳体102围成的容纳槽中，且在所述折叠显示装置处于完全展平状态下，所述弯折机构20朝向所述柔性显示面板30的表面与所述壳体10朝向所述柔性显示面板30的表面共平面，以形成所述柔性显示面板30的支撑平面。
所述弯折机构20与所述第一壳体101及所述第二壳体102连接。
具体地，请参阅图2及图3所示，其中，图3是本申请实施例提供的弯折机构20的爆炸图，所述弯折机构20包括：弯折部205、位于在所述弯折部205一侧且与所述第一壳体101对应设置的第一支持部201和第二支持部202、位于所述弯折部205另一侧且与所述第二壳体102对应设置的第三支持部203和第四支持部204，所述第一支持部201与所述第一壳体101连接，所述第二支持部202部分别与所述第一支持部201和所述弯折部205的一侧可转动连接，所述第四支持部204与所述第二壳体102连接，所述第三支持部203分别与所述第四支持部204和所述弯折部205的另一侧可转动连接。
所述第一支持部201和所述第二支持部202均套设于一转动轴（图中未画出）上，所述第三支持部203和所述第四支持部204均套设于另一转动轴（图中未画出）上，其中，所述第二支持部202和所述第一支持部201通过所述转动轴实现可转动连接，所述第三支持部203和所述第四支持部204通过所述转动轴实现可转动连接，其中，所述转动轴均包括但不限于销轴。
可选地，所述第二支持部202包括多个第二支撑子部，相邻两个所述第二支撑子部之间可转动连接；所述第三支持部203包括多个第三支撑子部，相邻两个所述第三支撑子部之间可转动连接。本实施例的上述设计将所述第二支持部202和所述第三支持部203进一步设计为多个支撑子部的可转动连接结构，有利于使弯折机构20在完全折叠状态下形成精细水滴形结构。
本实施例通过在所述弯折部205的一侧设置第二支持部202和第一支持部201，在所述弯折部205的另一侧设置第三支持部203和第四支持部204，并将所述第二支持部202可转动地连接于所述弯折部205的一侧，所述第三支持部203可转动地连接于所述弯折部205的另一侧，所述第二支持部202和所述第一支持部201以及所述第三支持部203和所述第四支持部204分别通过转动轴实现可转动连接，增加了所述弯折机构20转动自由度的数量，当所述折叠显示装置处于折叠状态时，所述第二支持部202、所述第一支持部201、所述第三支持部203和所述第四支持部204倾斜形成一楔形，为所述折叠显示装置中的柔性显示面板30在折叠状态下留出更大的弯折区的容纳空间。
所述弯折机构20还包括转动件211、与所述转动件211连接且随所述转动件211转动的第一扭力件208和第二扭力件209、与所述第一扭力件208滑动连接的第一滑动件206、以及与所述第二扭力件209件滑动连接的第二滑动件207，所述第一滑动件206与所述第一支持部201固定连接，所述第二滑动件207与所述第四支持部204固定连接。
其中，所述转动件211与所述弯折部205可转动连接。可选地，所述转动件211包括依次啮合的四个齿轮轴，每个齿轮轴的一端均设置于所述弯折部205上的一个旋转槽中；所述第一扭力件208和所述第二扭力件209分别与最外侧的两个相对的齿轮轴连接，且可随齿轮轴转动。
所述第一扭力件208包括第一滑动部及自所述第一滑动部的一端延伸出的第一连接端，所述第二扭力件209包括第二滑动部及自所述第二滑动部的一端延伸出的第二连接端；其中，所述第一滑动部可滑动地连接于所述第一滑动件206，所述第一连接端设有供所述转动件211穿过的孔，所述第二滑动部可滑动地安装于所述第二滑动件207，所述第二连接端设有供所述转动件211穿过的孔。
所述第一滑动件206设有第一滑槽，所述第二滑动件207设有第二滑槽，所述第一滑动部可滑动地安装于所述第一滑槽内，所述第二滑动部可滑动地安装于所述第二滑槽内。
所述弯折部205包括弧形滑槽，所述第二支持部202包括第一滑块，所述第三支持部203包括第二滑块，其中，所述第一滑块和所述第二滑块在所述弧形滑槽内转动。
所述弯折机构20还包括与所述弯折部205可活动连接的中间支持部210，所述中间支持部210设置于所述弯折部205与所述柔性显示面板30之间。
所述弯折机构20还包括支撑件216，所述支撑件216连接于所述转动件211并可随所述转动件211转动。当所述折叠显示装置处于平坦状态时，所述支撑件216支撑所述中间支持部210。可选地，所述支撑件216可以是一个凸轮构件；所述折叠显示装置在非完全展平状态下，所述支撑件216的非凸轮部与所述中间支持部210对应；当所述折叠显示装置由非展平状态向展平状态转变时，所述支撑件216随所述转动件211转动，所述支撑件216的凸轮部逐渐支撑起所述中间支持部210，以在最终展平状态下将所述中间支持部210抬高。
所述弯折机构20还包括支撑架212、扭力凸轮213、弹簧214和限位架215；所述支撑架212连接于所述转动件211上，且不随所述转动件211转动，所述支撑架212位于所述弯折部205与所述第一扭力件208、第二扭力件209之间；所述扭力凸轮213设置有与所述第一扭力件208及所述第二扭力件209相配合的凸轮结构，所述扭力凸轮213设置于所述第一扭力件208、第二扭力件209的远离所述支撑架212的一侧；所述弹簧214的一端抵接于所述扭力凸轮213上，另一端抵接于所述限位架215上；所述支撑件216设置于所述限位架215远离所述弹簧214的一侧。
请继续参阅图1和图2，所述折叠显示装置还包括与所述弯折部205对应设置的后盖70，且所述后盖70与所述弯折部205连接。所述后盖70设置于所述弯折机构20远离所述柔性显示面板30的一侧。所述后盖70用于在所述折叠显示装置处于弯折状态时对所述弯折机构20进行遮挡和保护。
所述柔性显示面板30设置于所述壳体10中，且位于所述第一壳体101、所述第二壳体102和所述弯折机构20的同一侧。所述柔性显示面板30至少在对应所述弯折机构20的区域具有柔性可弯曲。所述柔性显示面板30可以是有机发光二极管显示面板，也可以是其它形式的具有柔性特点的显示面板。
所述前框结构40设置在所述柔性显示面板30远离所述壳体10的一侧且覆盖所述柔性显示面板30侧面的至少部分区域。所述前框结构40包括：与所述第一支持部201连接的第一前框部401、与所述第二支持部202连接的第二前框部402、与所述第三支持部203连接的第三前框部403、与所述第四支持部204连接的第四前框部404。其中，所述第二前框部402可以随所述第二支持部202运动而不受所述第一前框部401的运动状态的限制；所述第三前框部403可以随所述第三支持部203运动而不受所述第四前框部404的运动状态的限制。
可选地，所述第二前框部402包括多个第二前框子部，每个所述第二前框子部与对应的所述第二支撑子部连接；所述第三前框部403包括多个第三前框子部，每个所述第三前框子部与对应的所述第三支撑子部连接。
本实施例通过将折叠显示装置的前框结构40设置为具有一定独立性的四个部分，每一部分分别与对应的一个支持部连接，使得折叠显示装置在弯折过程中所述前框结构40始终与所述柔性显示面板30之间保持固定间距，避免弯折过程中由于前框结构与柔性显示面板之间的间距扩大而导致杂质容易进入显示装置内部，有效降低杂质进入显示装置内部的风险，提高了显示装置的可靠性。
进一步地，由于所述第一前框部401与所述第一支持部201连接，所述第二前框部402与所述第二支持部202连接，所述第三前框部403与所述第三支持部203连接，所述第四前框部404与所述第四支持部204连接，使得所述第一支持部201与所述第一前框部401之间保持固定间距，所述第二支持部202与所述第二前框部402之间保持固定间距，所述第三支持部203与所述第三前框部403之间保持固定间距，所述第四支持部204与所述第四前框部404之间保持固定间距，从而保证所述折叠显示装置无论处于折叠状态还是展平状态，其前框结构40均能对柔性显示面板30进行有效遮盖，阻挡外界杂质的进入。
在一种实施例中，所述折叠显示装置还包括设置在所述柔性显示面板30侧面的软质条60。所述软质条60设置在所述前框结构40和所述柔性显示面板30之间，并且分别与所述第二前框部402和所述第三前框部403连接。所述软质条60由柔性材料制作，在所述折叠显示装置的弯折过程中，所述软质条60随所述柔性显示面板30进行弯曲，进一步阻挡外界杂质进入显示装置内部。
进一步地，所述折叠显示装置还包括与所述弯折部205对应设置的防尘塞50，所述防尘塞50固定连接于所述后盖70上。所述防尘塞50用于进一步将所述软质条60固定在所述柔性显示面板30上，提升所述软质条60的防尘效率，并且所述防尘塞50本身也可以阻挡一部分外界杂质进入所述折叠显示装置的内部。
下面结合具体实施例对所述前框结构40、所述软质条60及所述防尘塞50的设置方式进行说明。
请参阅图2、图4和图5所示，图4是折叠显示装置在展平状态下前框结构在折叠显示装置中的组合爆炸图，图5是折叠显示装置中的前框结构、防尘塞与软质条的连接结构示意图。
其中，本实施例将所述前框结构40中的第一前框部401、第二前框部402、第三前框部403及第四前框部404设置为彼此独立且相互分离的四个前框构件，但并不仅限于这种设置方式，在其它实施例中还可以将第一前框部401、第二前框部402、第三前框部403及第四前框部404彼此之间通过连接结构进行连接，从而使所述前框结构40成为一体结构。
此外，本实施例将所述软质条60设置为独立于所述前框结构40的组件，在其它实施例中，还可以将所述软质条60一体化成型于所述前框结构40的内部。
在本实施例中，所述前框结构40围绕所述柔性显示面板30的出光面的边缘设置，且所述前框结构40的至少部分区域覆盖所述柔性显示面板30的侧面。
可选地，请进一步参阅图7所示，图7是本申请实施例提供的第二前框部和第三前框的结构示意图。所述第二前框部402包括第一前端部Q1和第一侧端部C1，所述第一前端部Q1与所述第一侧端部C1一体化成型，所述第一前端部Q1对应所述柔性显示面板30的出光面设置，所述第一侧端部C1对应所述柔性显示面板30的侧面设置。所述第三前框部403包括第二前端部Q2和第二侧端部C2，所述第二前端部Q2与所述第二侧端部C2一体化成型，所述第二前端部Q2对应所述柔性显示面板30的出光面设置，所述第二侧端部C2对应所述柔性显示面板30的侧面设置。
所述第一前端部Q1和所述第一侧端部C1分别对所述柔性显示面板30的出光面和侧面进行覆盖，以形成对所述柔性显示面板30边缘的包覆结构；所述第二前端部Q2和所述第二侧端部C2也分别对所述柔性显示面板30的出光面和侧面进行覆盖，以形成对所述柔性显示面板30边缘的包覆结构。
进一步地，所述第一侧端部C1包括第一伸出部S1，所述第二前框部402通过所述第一伸出部S1与所述第二支持部202连接。可选地，所述第一伸出部S1为销状结构或钩状结构，所述第二支持部202上设置有与所述第一伸出部S1对应的孔状结构，以实现所述第一伸出部S1与所述第二支持部202的连接。
所述第二侧端部C2包括第二伸出部S2，所述第三前框部403通过所述第二伸出部S2与所述第三支持部203连接。可选地，所述第二伸出部S2为销状结构或钩状结构，所述第三支持部203上设置有与所述第二伸出部S2对应的孔状结构，以实现所述第二伸出部S2与所述第三支持部203的连接。
此外，所述第一前框部401和所述第四前框部404可以分别通过一卡扣结构与所述第一支持部201和所述第四支持部204连接，或者与所述第一壳体101和所述第二壳体102连接，以实现所述第一前框部401和所述第四前框部404的固定。
进一步地，所述软质条60沿所述柔性显示面板30的出光面的边缘设置，且位于所述前框结构40与所述柔性显示面板30之间。
所述软质条60的相对两端分别设置有第一开孔601和第二开孔602，所述第一前框部401靠近所述第二前框部402的一端设置有第一钩体411，所述第四前框部404靠近所述第三前框部403的一端设置有第二钩体414，所述第一钩体411通过所述第一开孔601连接所述软质条60的一端，所述第二钩体414通过所述第二开孔602连接所述软质条60的另一端，从而将所述软质条60连接在所述第一前框部401和所述第四前框部404之间。
所述软质条60的第一开孔601和第二开孔602之间的区域还设置有至少一个第一定位孔603和至少一个第二定位孔604，所述第二前框部402上设置有与所述第一定位孔603相对应的第一定位柱412，所述第三前框部403上设置有与所述第二定位孔604相对应的第二定位柱413，所述第一定位柱412通过所述第一定位孔603连接所述软质条60，所述第二定位柱413通过所述第二定位孔604连接所述软质条60，从而将所述软质条60固定在所述前框结构40与所述柔性显示面板30之间。
请进一步参阅图6，图6是本申请实施例提供的防尘塞的结构示意图。所述防尘塞50包括主体部501和钩体部502，所述主体部501与所述钩体部502一体化成型，所述钩体部502突出所述主体部501的轮廓表面而形成钩状结构。
在所述折叠显示装置的整体结构中，所述防尘塞50对应所述弯折部205设置，且位于所述第二前框部402与所述第三前框部403之间。所述主体部501设置于所述柔性显示面板30的侧面，所述钩体部502对应所述柔性显示面板30的出光面设置，且位于所述软质条60的远离所述柔性显示面板30的一侧。所述主体部501通过所述后盖70上的开孔与所述后盖70固定连接，从而使所述钩体部502对所述柔性显示面板30及所述软质条60形成挤压固定效果。
进一步地，请参阅图8和图9，图8是本申请实施例提供的折叠显示装置在弯折过程中的第一视角下的结构示意图，图9是本申请实施例提供的折叠显示装置在弯折过程中的第二视角下的结构示意图。
所述折叠显示装置由完全展平状态向完全折叠状态的弯折过程中，所述前框结构40与所述柔性显示面板30之间的间距始终保持恒定，尤其是所述第二前框部402及所述第三前框部403与所述柔性显示面板30之间的间距保持恒定。应当理解的是，通过将所述第二前框部402与所述第二支持部202连接，以及将所述第三前框部403与所述第三支持部203连接，限制了所述第二前框部402随所述第二支持部202同步运动，所述第三前框部403随所述第三支持部203同步运动，从而避免了弯折过程中所述前框结构40与所述柔性显示面板30之间的间距增大。
在所述折叠显示装置的弯折过程中，所述软质条60始终被固定在所述前框结构40与所述柔性显示面板30之间，进一步防止外界杂质从柔性显示面板30的侧面进入显示装置内部。
在所述折叠显示装置的弯折过程中，所述防尘塞50始终压在所述软质条60上，限制所述软质条60的中间区域与所述柔性显示面板30之间间距的增大，进一步提高折叠显示装置侧面对外界杂质的阻挡能力。
请进一步参阅图10，图10是本申请实施例提供的折叠显示装置在完全折叠状态下的结构示意图。
所述折叠显示装置在完全折叠状态下时，所述第一支持部201与所述第四支持部204处于平行或接近平行的状态；所述第二支持部202与所述第三支持部203之间具有一定的倾斜角度，形成楔形容置空间；在所述弯折机构20的支撑作用下，所述柔性显示面板30的弯折区域形成水滴形结构。
所述第一前框部401、所述第二前框部402、所述第三前框部403和所述第四前框部404通过分别与所述第一支持部201、第二支持部202、第三支持部203和第四支持部204的连接关系将折叠状态下的柔性显示面板30和软质条60固定在所述弯折机构20上。所述防尘塞50通过与所述后盖70的连接关系将柔性显示面板30和软质条60固定在中间支持部210上。
在上述实施例中，均是将软质条60作为独立于前框结构40的单独的构件进行说明，但不仅限于此种结构，在其它一些实施例中还可以将软质条60与第一前框部401和第四前框部404一体成型而成为前框结构40中的一部分软质区域，并达到与上述实施例同样的技术效果，并且折叠显示装置中的其它结构特征与上述实施例相同，此处不再赘述。
在其它有一些实施例中，请参阅图11，图11是本申请实施例提供的折叠显示装置的另一种实施例方式的示意图。在本实施例中，所述折叠显示装置与上述实施例的折叠显示装置具有相同或相似的结构特征，其区域之处仅在于前框结构40的特征。下面针对本实施例相对于上述实施例的区别之处进行详述，其中省略之处或未详述之处请参阅上述实施例的记载。
在本实施例中，所述前框结构40设置于所述柔性显示面板30远离弯折机构的一侧，所述前框结构40包括第一前框部401、第二前框部402、第三前框部403、第四前框部404、以及连接于所述第一前框部401与所述第二前框部402之间的第一柔性部405、连接于所述第二前框部402与所述第三前框部403之间的第二柔性部406、以及连接于所述第三前框部403与所述第四前框部404之间的第三柔性部407。在所述折叠显示装置由完全展平状态向弯折状态转变过程中，所述第一柔性部405、所述第二柔性部406和所述第三柔性部407贴近所述柔性显示面板30，并随所述柔性显示面板30一起弯曲，从而保证所述前框结构40与所述柔性显示面板30之间具有固定间距，进而防止弯折过程中外界杂质进入显示装置内部。
可选地，请进一步参阅图12，图12是本申请实施例提供的前框结构的另一种实施方式的示意图。所述第一柔性部405包括第一硬质层Y1和第一软质层R1，所述第一硬质层Y1与所述第一软质层R1层叠状分布，且所述第一软质层R1位于所述第一硬质层Y1与所述柔性显示面板30之间；所述第二柔性部406包括第二硬质层Y2和第二软质层R2，所述第二硬质层Y2与所述第二软质层R2层叠状分布，且所述第二软质层R2位于所述第二硬质层Y2与所述柔性显示面板30之间；所述第三柔性部407包括第三硬质层Y3和第三软质层R3，所述第三硬质层Y3与所述第三软质层R3层叠状分布，且所述第三软质层R3位于所述第三硬质层Y3与所述柔性显示面板30之间。
可选地，所述第一硬质层Y1、所述第二硬质层Y2、所述第三硬质层Y3与所述第一前框部401、所述第二前框部402、所述第三前框部403、所述第四前框部404采用相同材料一体化成型。所述第一软质层R1、所述第二软质层R2和所述第三软质层R3均采用柔性材料制作，以实现其可弯曲的特性。
可选地，请进一步参阅图13，图13是本申请实施例提供的前框结构的又一种实施方式的示意图。所述第一柔性部405包括层叠设置的第一硬质层Y1和第一软质层R1，且所述第一软质层R1位于所述第一硬质层Y1与所述柔性显示面板30之间；所述第二柔性部406包括层叠设置的第二硬质层Y2和第二软质层R2，且所述第二软质层R2位于所述第二硬质层Y2与所述柔性显示面板30之间；所述第三柔性部407包括层叠设置的第三硬质层Y3和第三软质层R3，且所述第三软质层R3位于所述第三硬质层Y3与所述柔性显示面板30之间。
所述第一硬质层Y1靠近所述第一软质层R1的一侧设置有多个第一齿形槽，所述第一软质层R1填充于所述第一齿形槽中；所述第二硬质层Y2靠近所述第二软质层R2的一侧设置有多个第二齿形槽，所述第二软质层R2填充于所述第二齿形槽中；所述第三硬质层Y3靠近所述第三软质层R3的一侧设置有多个第三齿形槽，所述第三软质层R3填充于所述第三齿形槽中。
应当理解的是，与图12所示的实施例相比，本实施例除了可以实现第一柔性部405、第二柔性部406及第三柔性部407的柔性可弯折的特点之外，还可以增大所述第一硬质层Y1与所述第一软质层R1之间的结合力、所述第二硬质层Y2与所述第二软质层R2之间的结合力、以及所述第三硬质层Y3与所述第三软质层R3之间的结合力。
可选地，所述第一齿形槽、所述第二齿形槽以及所述第三齿形槽的截面形状可以是方形或三角形或其它形状。
其中，所述第一硬质层Y1、所述第二硬质层Y2、所述第三硬质层Y3与所述第一前框部401、所述第二前框部402、所述第三前框部403、所述第四前框部404可以采用相同的材料一体化成型。所述第一软质层R1、所述第二软质层R2和所述第三软质层R3均采用柔性材料制作，以实现其可弯曲的特性。
综上所述，本申请实施例提供的折叠显示装置包括：壳体、设置于所述壳体中的弯折机构、设置于所述壳体中且位于所述弯折机构上的柔性显示面板、以及设置于所述柔性显示面板上的前框结构，所述弯折机构包括可转动连接于弯折部一侧的第一支持部和第二支持部、以及可转动连接于弯折部另一侧的第三支持部和第四支持部，所述前框结构包括与第一支持部连接的第一前框部、与第二支持部连接的第二前框部、与第三支持部连接的第三前框部、以及与第四支持部连接的第四前框部，前框结构与柔性显示面板之间可以设置有软质条，或在前框结构的各部分之间连接柔性部。本申请实施例通过将折叠显示装置的前框结构设置为四个部分，每一部分分别与对应的一个支持部连接，使得折叠显示装置在弯折过程中前框结构始终与柔性显示面板之间保持固定间距，有效阻挡杂质进入显示装置内部，并且软质条或柔性部的设置进一步提高了前框结构对杂质的阻挡能力，进而提高显示装置的可靠性。
需要说明的是，虽然本申请以具体实施例揭露如上，但上述实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种折叠显示装置，其包括：
    壳体，包括第一壳体和第二壳体；
    弯折机构，所述弯折机构容纳在所述壳体中并连接到所述第一壳体和所述第二壳体，所述弯折机构包括：弯折部、位于所述弯折部一侧且与所述第一壳体对应设置的第一支持部和第二支持部、位于所述弯折部另一侧且与所述第二壳体对应设置的第三支持部和第四支持部，所述第一支持部与所述第一壳体连接，所述第二支持部分别与所述弯折部的一侧和所述第一支持部可转动连接，所述第四支持部与所述第二壳体连接，所述第三支持部分别与所述弯折部的另一侧和所述第四支持部可转动连接；
    柔性显示面板，所述柔性显示面板设置在所述壳体中，且位于所述第一壳体、所述第二壳体和所述弯折机构的一侧；
    前框结构，设置在所述柔性显示面板远离所述壳体的一侧且覆盖所述柔性显示面板侧面的至少部分区域，所述前框结构包括：与所述第一支持部连接的第一前框部、与所述第二支持部连接的第二前框部、与所述第三支持部连接的第三前框部、与所述第四支持部连接的第四前框部。
  2. 根据权利要求1所述的折叠显示装置，其中，所述第二支持部与所述第二前框部之间保持固定间距，所述第三支持部与所述第三前框部之间保持固定间距。
  3. 根据权利要求2所述的折叠显示装置，其中，所述第二前框部包括第一前端部和第一侧端部，所述第一前端部对应所述柔性显示面板的出光面设置，所述第一侧端部对应所述柔性显示面板的侧面设置；
    所述第三前框部包括第二前端部和第二侧端部，所述第二前端部对应所述柔性显示面板的出光面设置，所述第二侧端部对应所述柔性显示面板的侧面设置。
  4. 根据权利要求3所述的折叠显示装置，其中，所述第一侧端部包括第一伸出部，所述第二前框部通过所述第一伸出部与所述第二支持部连接，所述柔性显示面板设置在所述第一伸出部和所述第一前端部之间；
    所述第二侧端部包括第二伸出部，所述第三前框部通过所述第二伸出部与所述第三支持部连接，所述柔性显示面板设置在所述第二伸出部和所述第二前端部之间。
  5. 根据权利要求1所述的折叠显示装置，其中，还包括设置在所述柔性显示面板出光面上的软质条，所述软质条设置在所述前框结构和所述柔性显示面板之间，并且分别与所述第一前框部和所述第四前框部连接。
  6. 根据权利要求5所述的折叠显示装置，其中，所述第一前框部具有第一钩体，所述软质条的第一端具有与所述第一钩体配合连接的第一开孔；
    所述第四前框部具有第二钩体，所述软质条的第二端具有与所述第二钩体配合连接的第二开孔。
  7. 根据权利要求5所述的折叠显示装置，其中，所述软质条还分别与所述第二前框部和所述第三前框部限位连接。
  8. 根据权利要求7所述的折叠显示装置，其中，所述第二前框部上设置有至少一个第一定位柱，所述软质条具有与每个所述第一定位柱配合连接的第一定位孔；
    所述第三前框部上设置有至少一个第二定位柱，所述软质条具有与每个所述第二定位柱配合连接的第二定位孔。
  9. 根据权利要求5所述的折叠显示装置，其中，所述折叠显示装置还包括：与所述弯折部对应且设置在所述柔性显示面板侧面的防尘塞。
  10. 根据权利要求9所述的折叠显示装置，其中，所述防尘塞包括主体部和钩体部，所述主体部对应所述柔性显示面板的侧面设置，所述钩体部设置于所述软质条的远离所述柔性显示面板的一侧。
  11. 根据权利要求10所述的折叠显示装置，其中，所述折叠显示装置还包括与所述弯折部对应设置的后盖，所述后盖与所述弯折部连接；
    所述后盖位于所述弯折机构远离所述柔性显示面板的一侧，所述防尘塞的主体部与所述后盖连接。
  12. 根据权利要求1所述的折叠显示装置，其中，所述前框结构还包括：连接于所述第一前框部与所述第二前框部之间的第一柔性部、连接于所述第二前框部与所述第三前框部之间的第二柔性部、以及连接于所述第三前框部与所述第四前框部之间的第三柔性部。
  13. 根据权利要求12所述的折叠显示装置，其中，所述第一柔性部、所述第二柔性部和所述第三柔性部的至少其中之一包括硬质层和软质层。
  14. 根据权利要求13所述的折叠显示装置，其中，所述软质层设置于所述硬质层与所述柔性显示面板之间。
  15. 根据权利要求14所述的折叠显示装置，其中，所述硬质层靠近所述软质层的一侧设置有多个齿形槽，所述软质层填充于所述齿形槽中。
  16. 根据权利要求15所述的折叠显示装置，其中，所述齿形槽的截面形状包括方形或三角形。
  17. 根据权利要求1所述的折叠显示装置，其中，所述第二支持部包括多个第二支撑子部，相邻两个所述第二支撑子部之间可转动连接；
    所述第二前框部包括多个第二前框子部，每个所述第二前框子部与对应的所述第二支撑子部连接；
    所述第三支持部包括多个第三支撑子部，相邻两个所述第三支撑子部之间可转动连接；
    所述第三前框部包括多个第三前框子部，每个所述第三前框子部与对应的所述第三支撑子部连接。
  18. 根据权利要求1所述的折叠显示装置，其中，所述弯折机构还包括：与所述弯折部可转动连接的第一转动件和第二转动件、与所述第一转动件连接且随所述第一转动件转动的第一扭力件、与所述第二转动件连接且随所述第二转动件转动的第二扭力件、与所述第一支持部固定连且与所述第一扭力件滑动连接的第一滑动件、以及与所述第四支持部固定连且与所述第二扭力件滑动连接的第二滑动件；
    所述第一滑动件设置于所述第一支持部远离所述柔性显示面板的一侧，所述第一扭力件设置于所述第二支持部远离所述柔性显示面板的一侧，所述第二扭力件设置于所述第三支持部远离所述柔性显示面板的一侧，所述第二滑动件设置于所述第四支持部远离所述柔性显示面板的一侧。
  19. 根据权利要求18所述的折叠显示装置，其中，所述弯折机构还包括与所述弯折部可活动连接的中间支持部，所述中间支持部设置于所述弯折部与所述柔性显示面板之间。
  20. 一种折叠显示装置，其包括：
    壳体，包括第一壳体和第二壳体；
    弯折机构，所述弯折机构容纳在所述壳体中并连接到所述第一壳体和所述第二壳体，所述弯折机构包括：弯折部、位于所述弯折部一侧且与所述第一壳体对应设置的第一支持部和第二支持部、位于所述弯折部另一侧且与所述第二壳体对应设置的第三支持部和第四支持部，所述第一支持部与所述第一壳体连接，所述第二支持部分别与所述弯折部的一侧和所述第一支持部可转动连接，所述第四支持部与所述第二壳体连接，所述第三支持部分别与所述弯折部的另一侧和所述第四支持部可转动连接；
    柔性显示面板，所述柔性显示面板设置在所述壳体中，且位于所述第一壳体、所述第二壳体和所述弯折机构的一侧；
    前框结构，设置在所述柔性显示面板远离所述壳体的一侧且覆盖所述柔性显示面板侧面的至少部分区域，所述前框结构包括：与所述第一支持部连接的第一前框部、与所述第二支持部连接的第二前框部、与所述第三支持部连接的第三前框部、与所述第四支持部连接的第四前框部；
    所述第一前框部与所述第二前框部之间连接有第一柔性部，所述第二前框部与所述第三前框部之间连接有第二柔性部，所述第三前框部与所述第四前框部之间连接有第三柔性部，所述第二柔性部远离所述柔性显示面板的一侧设置有防尘塞，所述防尘塞的构体部压在所述第二柔性部上。
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