WO2024041457A9 - 柔性显示装置 - Google Patents

柔性显示装置 Download PDF

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Publication number
WO2024041457A9
WO2024041457A9 PCT/CN2023/113750 CN2023113750W WO2024041457A9 WO 2024041457 A9 WO2024041457 A9 WO 2024041457A9 CN 2023113750 W CN2023113750 W CN 2023113750W WO 2024041457 A9 WO2024041457 A9 WO 2024041457A9
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WO
WIPO (PCT)
Prior art keywords
plate
shell
display device
guide member
display module
Prior art date
Application number
PCT/CN2023/113750
Other languages
English (en)
French (fr)
Other versions
WO2024041457A1 (zh
Inventor
朱红
沈酉庆
Original Assignee
京东方科技集团股份有限公司
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 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Publication of WO2024041457A1 publication Critical patent/WO2024041457A1/zh
Publication of WO2024041457A9 publication Critical patent/WO2024041457A9/zh

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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

Definitions

  • the present disclosure relates to the field of display technology, and in particular to a flexible display device.
  • Flexible display screens have good folding and bending properties.
  • the display area of some flexible display devices can change according to the user's needs in different scenarios, becoming an important development direction for flexible displays in the future.
  • the driving part and the supporting part of the display module are separately arranged, which has a complex structure and occupies a large space, and is not conducive to the thinness and lightness of the flexible display device.
  • the present disclosure provides a flexible display device.
  • a flexible display device including a fixed structure, a sliding mechanism and a driving support mechanism, wherein the fixed structure includes a first fixed shell; the sliding mechanism includes a display module, a connecting frame and a roller, the connecting frame includes a mounting portion, the mounting portion is arranged at a distance along a first direction on one side of the first fixed shell, the roller is rotatably connected to the connecting frame, the display module is wound around the roller and connected to the first fixed shell; the driving support mechanism includes a driving mechanism, a first guide member and a supporting frame, the first guide member is arranged between the first fixed shell and the connecting frame, the fixed part of the driving mechanism is installed on the first fixed shell, the movable part of the driving mechanism is fixedly connected to the first guide member, the supporting frame includes at least one supporting unit, the supporting unit includes a first connecting member, one end of the first connecting member is hinged to the connecting frame, and the other end is slidably connected to the first guide member, The angle between the first connecting
  • the support unit also includes a second connecting member, one end of the second connecting member is rotatably connected to the other end of the first connecting member, a slider is provided at the connection between the second connecting member and the first connecting member, the slider is slidably connected to the first guide member, the other end of the second connecting member is hinged to the first fixed shell, and the angle between the second connecting member and the first guide member is not equal to 90 degrees.
  • the first fixed shell has a first connecting portion
  • the connecting frame has a second connecting portion
  • the supporting frame includes two supporting units, the first connecting members of the two supporting units are both hinged to the second connecting portion, and the second connecting members of the two supporting units are both hinged to the first connecting portion.
  • the driving support mechanism includes a plurality of support frames, and the plurality of support frames are sequentially arranged along a second direction, and the second direction is perpendicular to the first direction.
  • the distance between two adjacent first connecting parts is greater than or equal to the sum of the lengths of the two first connecting rods
  • the distance between two adjacent second connecting parts is greater than or equal to the sum of the lengths of the two second connecting rods
  • the lengths of the first connecting rod and the second connecting rod are equal.
  • the sliding mechanism further comprises a flexible support plate, which is fixed on the display module, and the flexible support plate is partially located between the support frame and the display module, and partially located between the roller and the display module.
  • the connecting frame also includes a connecting arm, which is arranged on both sides of the mounting portion along the second direction and extends along the first direction toward a side close to the first fixed shell.
  • Track plates are provided on both sides of the connecting arm, and a guide bar is provided on a side of the track plate close to the connecting arm.
  • a guide member is slidably connected to the guide bar, and the guide member is fixedly connected to the flexible support plate.
  • the sliding mechanism also includes a sliding shell, which includes an arc-shaped plate, which is located on the side of the curling portion of the display module away from the roller, and connecting structures are respectively provided at both ends of the arc-shaped plate in the second direction, and the connecting structures extend along the first direction and are connected to the track plate and/or the connecting arm.
  • the connecting structure includes a first connecting plate and a second connecting plate, the first connecting plate is arranged on the side of the track plate away from the connecting arm, the second connecting plate is arranged on the outer edge of the first connecting plate and is located on the side of the display module away from the flexible support plate, and the second connecting plate blocks a portion of the edge of the display module.
  • the sliding mechanism also includes a cover plate, which is arranged on a side of the sliding shell away from the first fixed shell along a third direction, the third direction is perpendicular to the first direction and the second direction, and the display module extends from the roller to between the flexible support plate and the cover plate.
  • the fixed structure also includes a second fixed shell, which is arranged on a side of the driving support mechanism away from the first fixed shell, and the second fixed shell includes a first part, a transfer part and a second part, the first part is fixedly connected to the first fixed shell, the transfer part is connected to the first part and extends toward the first fixed shell along a third direction, the second part is connected to an end of the transfer part close to the first fixed shell, and the display module is located between the cover plate and the second part in the third direction.
  • two sides of the second fixed shell are provided with supporting edges, the supporting edges and the first part are located in the same plane, and the second connecting plate is overlapped on one side of the supporting edge close to the first fixed shell.
  • the fixed structure also includes a first shielding shell and a second shielding shell, the first shielding shell and the second shielding shell are fixedly connected to the first fixed housing, the first shielding shell is located on both sides of the first fixed shell along the second direction and at least partially overlaps with the first connecting plate, and the second shielding shell is partially arranged on a side of the display module away from the first fixed shell, and shields the portion of the edge of the display module that is not blocked by the second connecting plate.
  • a sliding groove is provided on one side of the connection structure away from the track plate along the second direction, and the first shielding shell fits in the sliding groove.
  • the driving mechanism includes a motor and a driving member, the motor is disposed on the first fixed housing, one end of the driving member is threadedly connected to the rotating shaft of the motor, and the other end of the driving member is fixedly connected to the first guide member.
  • the driving mechanism further includes a second guide member, the second guide member is connected to the first fixed shell, the second guide member extends along the first direction, and the driving member is slidably connected to the second guide member.
  • the drive support mechanism includes at least one pair of drive mechanisms, a pair of drive mechanisms includes two drive mechanisms, and the two drive mechanisms of each pair of drive mechanisms are symmetrically arranged about the center line of the first fixed housing along the first direction.
  • the flexible display device disclosed in the present invention comprises a driving support mechanism and a sliding mechanism, wherein the driving support mechanism comprises a driving mechanism, a first guide member and a support frame, and the sliding mechanism comprises a display module, a connecting member and a connecting member.
  • the driving support mechanism comprises a driving mechanism, a first guide member and a support frame
  • the sliding mechanism comprises a display module, a connecting member and a connecting member.
  • the stroke of the support frame is twice that of the movable part of the driving mechanism, and the stroke of the display module is twice that of the support frame. Therefore, the stroke of the driving mechanism is only one-fourth of the stroke of the display module, and the stroke requirement of the driving mechanism is relatively low.
  • FIG. 1 is a schematic structural diagram of a flexible display device according to an embodiment of the present disclosure when the flexible display device is folded.
  • FIG. 2 is a schematic structural diagram of the flexible display device according to an embodiment of the present disclosure when unfolded.
  • FIG. 3 is an exploded view of a flexible display device according to an embodiment of the present disclosure.
  • Fig. 4 is a schematic structural diagram along the A-A section direction of Fig. 1 .
  • Fig. 5 is a schematic structural diagram of the B-B section direction of Fig. 2 .
  • Fig. 6 is a schematic diagram of the partial structure in the C-C section direction of Fig. 2 .
  • FIG. 7 is a schematic diagram of a partial structure inside the flexible display device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a driving support mechanism according to an embodiment of the present disclosure.
  • FIG. 9 is another schematic diagram of the structure of the flexible display device according to an embodiment of the present disclosure when it is folded.
  • FIG. 10 is another schematic diagram of the structure of the flexible display device according to an embodiment of the present disclosure when unfolded.
  • the flexible display device includes a fixed structure, a sliding mechanism and a driving support mechanism
  • the fixed structure includes a first fixed shell 11
  • the sliding mechanism includes a display module 23, a connecting frame 21 and a roller 22
  • the connecting frame 21 includes a mounting portion 211, the mounting portion 211 is arranged at a distance along a first direction on one side of the first fixed shell 11, the roller 22 is rotatably connected to the connecting frame 21, the display module 23 is wound around the roller 22 and is connected to the first fixed shell 11
  • the driving support mechanism includes a driving mechanism 31, a first guide member 32 and a support frame 33, the first guide member 32 is arranged between the first fixed shell 11 and the connecting frame 21, the fixed part of the driving mechanism 31 is installed on the first fixed shell 11, the movable part of the driving mechanism 31 is fixedly connected to the first guide member 32,
  • the support frame 33 includes at least one supporting unit 331, the supporting unit 331 includes a first connecting member 3311, one end of the
  • the movable part of the driving mechanism 31 drives the first guide member 32 to move
  • the first connecting member 3311 will slide on the first guide member 32, so that the angle between the first connecting member 3311 and the first guide member 32, and the distance between the first guide member 32 and the connecting frame 21 change.
  • the roller 22 installed on the connecting frame 21 drives the display module 23 to slide in a rolling friction manner.
  • the support frame 33 always provides support performance for the display module 23.
  • the structure of the support frame 33 is simple and does not occupy extra space.
  • the stroke of the support frame 33 is twice that of the movable part of the driving mechanism 31, and the stroke of the display module 23 is twice that of the support frame 33. Therefore, the stroke of the driving mechanism 31 is only one-fourth of the stroke of the display module 23, and the stroke requirement of the driving mechanism 31 is relatively low.
  • the flexible display device includes a fixed structure, the fixed structure includes a first fixed shell 11, the first fixed shell 11 is a rectangular structure, the first fixed shell 11 includes a first fixed plate 111, a first stopper 112 and two first stoppers 113, the first fixed plate 111 includes two mutually parallel first sides and two mutually parallel second sides, the length of the first side is greater than the length of the second side.
  • the first side extends along a first direction
  • the second side extends along a second direction
  • the second direction is perpendicular to the first direction.
  • the stopper is provided on one of the first sides of the first fixed plate 111, the two first stoppers 113 are respectively provided on the two second sides of the first fixed plate 111, the first stopper and the two first stoppers 113 both extend along a third direction, and the third direction is perpendicular to the first direction and the second direction.
  • the first direction is the x direction in FIG. 1
  • the second direction is the y direction in FIG. 1
  • the second direction is the z direction in FIG. 1 .
  • the flexible display device further includes a sliding mechanism, which includes a display module 23 and a connecting frame 21.
  • the connecting frame 21 includes a mounting portion 211, which is arranged at intervals on one side of the first fixed housing 11 along the first direction.
  • a plurality of rollers 22 are arranged on the mounting portion 211, which are rotatably connected to the mounting portion 211.
  • the plurality of rollers 22 are arranged at intervals along the first direction, and the distance between two adjacent rollers 22 is equal.
  • the display module 23 is wound on the rollers 22, and the display module 23 includes a first straight portion 232, a curling portion 231, and a second straight portion 233. A portion of the first straight portion 232 is connected to the first fixed housing 11 and extends from the first fixed housing 11 to the rollers 22.
  • the curling portion 231 is wound outside the plurality of rollers 22 and extends from the rollers 22 to a side of the mounting portion 211 away from the first fixed plate 111 in the third direction.
  • the second straight portion 233 extends in the first direction toward the direction close to the first fixed housing 11.
  • the mounting portion 211 has a barrier portion 2112 between two adjacent rollers 22.
  • the barrier portion 2112 is set to be in an arc shape, and the curvature of the barrier portion 2112 is substantially the same as the curvature of the circumference of the roller 22.
  • a connection structure may be provided on the mounting portion 211, and the barrier portion 2112 is detachably connected to the mounting portion 211 through the connection structure.
  • roller 22 may be slightly protruded relative to the barrier portion 2112 along the first direction to ensure that the display module 23 is always in contact with the roller 22 during the sliding process, but not in contact with the barrier portion, so as to reduce the friction force to which the display module 23 is subjected during the folding and unfolding process while playing a supporting role.
  • the connecting frame 21 moves along the first direction
  • the display module 23 moves along the sliding direction
  • the friction between the display module 23 and the roller 22 drives the roller 22 to rotate.
  • the roller 22 rotates clockwise, the length of the first straight portion 232 along the first direction becomes longer, and the length of the second straight portion 233 in the first direction becomes shorter.
  • the second straight portion 233 moves away from the first fixed housing 11 along the first direction.
  • the roller 22 rotates counterclockwise, the length of the first straight portion 232 along the first direction becomes shorter, and the length of the second straight portion 233 in the first direction becomes longer. Because the total length of the display module 23 does not change, the second straight portion 233 approaches the first fixed housing 11 along the first direction.
  • the sliding mechanism also includes a flexible support plate 26, which is fixed on the display module 23, and a portion of the flexible support plate 26 is located between the roller 22 and the display module 23.
  • the surface of the flexible support plate 26 is relatively rough, and the roller 22 directly contacts the flexible support plate 26.
  • the flexible support plate 26 changes the sliding friction between the display module 23 and the roller 22 into rolling friction, and reduces the friction resistance generated by the relative sliding of the flexible support plate 26 in the form of rolling friction.
  • the connecting frame 21 further includes two connecting arms 212, which are arranged on both sides of the mounting portion 211 along the second direction and extend along the first direction toward the side close to the first fixed housing 11.
  • Track plates 24 are arranged on both sides of the connecting arms 212, and a limiting structure 241 is arranged on the side of the track plate 24 close to the connecting arm 212.
  • the limiting structure 241 includes an arc-shaped limiting plate 2411 and two straight limiting plates 2412.
  • the two straight limiting plates 2412 are arranged at intervals along the first direction.
  • the arc-shaped limiting plates 2411 limit the two straight limiting plates 2412.
  • the ends of the straight limiting plates 2412 away from the first fixed shell 11 are connected together, and the arc limiting plates 2411 and the two straight limiting plates 2412 form a mounting groove.
  • the connecting arm 212 is arranged in the mounting groove and fixed together with the track plate 24 .
  • a guide bar 242 is provided on the outer side of the limiting structure 241.
  • the shape of the guide bar 242 is similar to that of the limiting structure 241.
  • the guide bar 242 includes an arc-shaped guide section 2421 and two straight guide sections 2422.
  • the two straight sections are arranged at intervals along the first direction.
  • the arc-shaped guide section 2421 connects the ends of the two straight guide sections 2422 away from the first fixed housing 11.
  • a plurality of guide clips 27 are provided between the guide bar 242 and the flexible support plate 26.
  • the guide clips 27 are slidably connected to the guide bar 242 and fixedly connected to the flexible support plate 26.
  • the plurality of guide clips 27 are evenly arranged along the edge of the flexible support plate 26.
  • the guide clips 27 cooperate with the guide bar 242 to limit the bending shape of the flexible support plate 26 to the same shape as the guide bar 242, thereby determining the bending shape of the display module 23.
  • the guide bar 242 can constrain the flexible support plate 26 and the display module 23 in the third direction, thereby reducing the crease amount of the display module 23 and the warping amount of the free end of the display module 23 during the sliding process.
  • the guide clip 27 can be configured as a hook, and the guide clip 27 is engaged with the guide strip 242 .
  • the sliding mechanism further includes a sliding housing 25, which includes an arc plate 251.
  • the shape of the arc plate 251 is similar to the shape of the curling portion 231 of the display module 23.
  • the size of the arc plate 251 in the first direction is slightly larger than the size of the display module 23 along the first direction.
  • the size of the arc plate 251 in the second direction is slightly larger than the size of the display module 23 along the second direction.
  • the size of the arc plate 251 in the third direction is slightly larger than the size of the curling portion 231 of the display module 23 in the third direction.
  • the arc plate 251 is located on the side of the curling portion 231 of the display module 23 away from the roller 22, and the arc plate 251 forms a protection for the side of the curling portion 231 of the display module 23 away from the roller 22.
  • the arc plate 251 has connecting structures 252 at both ends in the second direction.
  • the connecting structure 252 extends along the first direction toward the first fixed shell 11.
  • the connecting structure 252 is connected to the track plate 24.
  • the position of the sliding shell 25 is fixed by the track plate 24.
  • the connecting arm 212 drives the track plate 24 to move along the first direction, the sliding shell 25 also moves along the first direction.
  • the connection structure 252 may include a first connection plate 2521 and a second connection plate 2522.
  • the second connection plate 2522 is integrally formed with the first connection plate 2521.
  • the first connection plate 2521 is a straight structure, including a dimension of the first connection plate 2521 in the third direction slightly larger than the distance between the first straight portion 232 and the second straight portion 233 of the display module 23, which are away from each other.
  • the first connection plate 2521 is disposed on the side of the track plate 24 away from the connection arm 212.
  • the second connection plate 2522 includes an arc
  • the second connecting plate 2522 of the two connecting structures 252 are close to each other in the second direction, and the second connecting plate 2522 shields part of the edge of the display module 23, specifically, the edge of the curled portion 231 of the display module 23, and the two straight connecting segments shield the edges of the first straight portion 232 and the second straight portion 233.
  • the fixed structure also includes a second fixed shell 12, which includes a first part 121, a transition part 122 and a second part 123.
  • the first part 121 is fixedly connected to the first fixed shell 11
  • the transition part 122 is connected to the first part 121 and extends in the third direction toward the first fixed shell 11
  • the second part 123 is connected to one end of the transition part 122 close to the first fixed shell 11, and an installation space is formed between the second fixed shell 12 and the first fixed shell 11.
  • the second fixed shell 12 is provided with supporting edges 124 on both sides of the second direction, the supporting edges 124 extend in the first direction, the supporting edges 124 are located in the same plane as the first part 121, and are integrally formed with the first part 121.
  • the second connecting plate 2522 of the connecting structure 252 is overlapped on one side of the supporting edge 124 close to the first fixed shell 11 in the third direction.
  • the sliding mechanism further includes a cover plate 28, which is located on a side of the second fixed housing 12 away from the first fixed housing 11 along the third direction, and is specifically connected to a side of the sliding housing 25 away from the first fixed housing 11 along the third direction, and the third direction is perpendicular to the first direction and the second direction.
  • the second straight portion 233 of the display module 23 is located between the cover plate 28 and the second portion 123 along the third direction.
  • the sliding housing 25 can shield and protect the curled portion 231 of the display module 23
  • the cover plate 28 can shield and protect the second straight portion 233 of the display module 23 .
  • the flexible display device further includes a driving support mechanism.
  • the mechanism is used to drive the mounting portion 211 of the connecting frame 21 to move along the first direction, and the driving support mechanism is arranged in the installation space.
  • the driving support mechanism includes a pair of driving mechanisms 31, and the pair of driving mechanisms 31 includes two driving mechanisms 31 distributed along the second direction, and the two driving mechanisms 31 are symmetrically arranged about the midline of the first fixed shell 11 along the first direction.
  • the driving mechanism 31 includes a motor 311 and a driving member 312.
  • the fixed part of the driving mechanism 31 includes a housing 3111 of the motor 311, and the movable part includes a rotating shaft 3112 of the motor 311 and the driving member 312.
  • the housing 3111 of the motor 311 is arranged on the first fixed plate 111, and the rotating shaft 3112 of the motor 311 is threadedly connected to one end of the driving member 312. When the rotating shaft 3112 of the motor 311 rotates, it can cause the driving member 312 to move along the first direction.
  • the driving mechanism 31 further includes a second guide member 313, which is connected to the first fixed housing 11, and extends in the first direction.
  • the second guide member 313 is spaced apart from the driving member 312 in the second direction, and the driving member 312 has a driving connection portion extending in the second direction, and the driving connection portion is slidably connected to the second guide member 313.
  • the second guide member 313 can be a guide rail, and the driving connection portion is connected to the outside of the second guide member 313, or a sliding track can be set on the second guide member 313, and the driving connection portion can be clamped in the sliding track.
  • the driving member 312 can be set as a plate-like structure, which can reduce the occupied space while ensuring the connection stability.
  • the driving support mechanism also includes a first guide member 32 and a plurality of support frames 33.
  • the first guide member 32 is a strip-shaped structure.
  • the first guide member 32 extends along the second direction.
  • the first guide member 32 is located between the first fixed housing 11 and the connecting frame 21 along the first direction.
  • the first guide member 32 is fixedly connected to the other end of the driving member 312. When the driving member 312 moves along the first direction, it can drive the first guide member 32 to move with it.
  • the plurality of support frames 33 are arranged between the first fixed housing 11 and the connecting frame 21 along the first direction.
  • the first fixed housing 11 is provided with a plurality of first connecting parts 1111 along the second direction.
  • the connecting frame 21 is provided with a plurality of second connecting parts 2111 along the second direction.
  • a support frame 33 is arranged between each first connecting part 1111 and each second connecting part 2111.
  • the first connecting parts 1111 and the second connecting parts 2111 at both ends of the support frame 33 are located on the same straight line along the first direction.
  • One end of the support frame 33 is hinged to one of the first connecting parts 1111, and the other end is hinged to the second connecting part 2111.
  • the support frame 33 includes two support units 331, one end of each of the two support units 331 is hinged to the second connection portion 2111, and the other end of each of the two support units 331 is hinged to the first connection portion 1111.
  • the support unit 331 includes a first connection member 3311 and a second connection member 3312, one end of the first connection member 3311 is hinged to the second connection portion 2111, and the other end is slidably connected to the first guide
  • the first guide member 32 has one end of a second connecting member 3312 rotatably connected to the other end of the first connecting member 3311, and the other end of the second connecting member 3312 is hinged to the first connecting portion 1111.
  • a slider 332 is provided at the connection between the second connecting member 3312 and the first connecting member 3311, and the slider 332 is slidably connected to the first guide member 32. It should be emphasized that there is no relative movement between the slider 332 and the connection between the second connecting member 3312 and the first connecting member 3311, but the slider 332 can slide on the first guide member 32.
  • the first guide member 32 has a slideway 321, and the slider 332 can be slidably connected to the slideway 321.
  • the length of the first connecting rod and the length of the second connecting rod can be set equal. In this way, the forces on the connection between the first connecting rod and the second connecting rod offset each other in the first direction and overlap each other in the second direction, and jointly drive the slider 332 to slide on the first guide member 32.
  • the distance between the two adjacent first connecting parts 1111 is greater than or equal to the sum of the lengths of the two first connecting rods, and the distance between the two adjacent second connecting parts 2111 is greater than or equal to the sum of the lengths of the two second connecting rods.
  • the angle between the first connecting member 3311 and the first guide member 32 is not equal to 90 degrees, and the angle between the second connecting member 3312 and the first guide member 32 is not equal to 90 degrees, that is, the angle between the first connecting member 3311 and the second connecting member 3312 of the same support frame 33 is always less than 180 degrees.
  • the two support units 331 always remain symmetrical about the line connecting the first connecting portion 1111 and the second connecting portion 2111, that is, the first connecting rod and the second connecting rod of the two support units 331 form a rhombus-shaped support frame 33.
  • the first connecting rods of the two support units 331 are located on the same straight line in the second direction and are attached to the mounting portion 211, and the second connecting rods of the two support units 331 are located on the same straight line in the second direction and are attached to the first fixing plate 111. 11, the angle between the first connecting rods of the two support units 331 becomes smaller, the angle between the second connecting rods of the two support units 331 becomes smaller, and the angle between the first connecting rod and the second connecting rod of the same support unit 331 gradually increases.
  • the two sliders 332 are forced to approach each other along the second direction on the first guide member 32.
  • the distance between the first guide member 32 and the first fixed housing 11 in the first direction gradually increases, and the distance between the mounting portion 211 of the connecting frame 21 and the first guide member 32 in the first direction also gradually increases.
  • the first guide member 32 is located on the side of the driving member 312 close to the first fixed plate 111 along the third direction
  • the support frame 33 is located on the side of the first guide member 32 close to the first fixed plate 111 along the third direction
  • the flexible support plate 26 is bonded to the side of the display module 23 close to the support frame 33 and the roller 22.
  • the structure of the support frame 33 and the first guide member 32 is relatively simple, and the installation is relatively convenient.
  • the first guide member 32 and the support frame 33 do not occupy extra space, which is conducive to the thinness of the flexible display device. It can be understood that whether the flexible display device is in the retracted state or in the sliding and unfolding process, the support frame 33 always supports the flexible support plate 26.
  • the rotating shaft 3112 of the motor 311 rotates to drive the driving member 312 to slide along the first direction, pushing the driving member 312 to extend in the first direction.
  • the two motors 311 are started at the same time, so the extension lengths of the two driving members 312 are the same, pushing the first guide member 32 to translate only along the first direction.
  • the first guide member 32 moves along the first direction, it pushes multiple support frames 33 to unfold synchronously along the first direction.
  • the support frames 33 unfold, they drive the connecting frame 21 to move along the first direction.
  • the roller 22 drives the flexible support plate 26 to slide in the form of rolling friction, and the display module 23 moves with the flexible support plate 26, thereby realizing the sliding and retracting of the display module 23.
  • the second guide member 313 limits all degrees of freedom of the driving member 312 except the first direction.
  • the movement stroke of the motor 311 along the first direction is L
  • the movement stroke of the first guide member 32 along the first direction is also L
  • the movement stroke of the slider 332 matched with the first guide member 32 is also L
  • the movement strokes of the first connecting rod and the second connecting rod are both L
  • the stroke of the support frame 33 is 2L.
  • the movement stroke of the support frame 33 is 2L
  • the movement stroke of the connecting frame 21 is also 2L
  • the rotation of the roller 22 installed on the connecting frame 21 The stroke is also 2L.
  • the movement stroke of the curling portion 231 is the same as the rotation stroke of the roller 22, which is also 2L.
  • the length of the first straight portion 232 increases by 2L, and the length of the second straight portion 233 decreases by 2L. Therefore, the total stroke of the display module 232 is 4L.
  • the first straight portion 232 is the display area of the display module 23, and the size of the display area along the first direction is expanded by 2L.
  • the fixed structure further includes a first shielding shell 13 and a second shielding shell 14, which are fixedly connected to the first fixed housing by bolts, the first shielding shell 13 is located on both sides of the first fixed housing 11 along the second direction, and at least partially overlaps with the first connecting plate 2521, and the second shielding shell 14 is partially arranged on the side of the display module 23 away from the first fixed housing 11, and shields the portion of the edge of the display module 23 that is not shielded by the second connecting plate 2522.
  • a sliding groove is provided on the side of the connecting structure 252 away from the track plate 24 along the second direction, and the first shielding shell 13 fits into the sliding groove. It can be understood that the function of the first shielding shell 13 and the second shielding shell 14 is to prevent the internal structure of the flexible display device from being exposed.
  • the flexible display device in addition to the fixed structure, sliding mechanism and driving support mechanism, the flexible display device also includes other necessary components and components, such as a circuit board, a power cord, etc., taking the display as an example. Those skilled in the art can make corresponding supplements according to the specific use requirements of the flexible display device, which will not be repeated here.
  • the flexible display device can be a traditional electronic device, such as a mobile phone, a computer, a television, and a camcorder, or it can be an emerging wearable device, such as VR glasses, which are not listed here one by one.

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Abstract

一种柔性显示装置，当驱动机构(31)的活动部分带动第一导向件(32)运动时，第一连接件(3311)会在第一导向件(32)上滑动，使得第一连接件(3311)与第一导向件(32)之间的夹角以及第一导向件(32)与连接架(21)之间的距离改变，滚轴(22)以滚动摩擦的方式带动显示模组(23)发生滑动。驱动机构(31)在带动滑动机构运动时，支撑架(33)始终为显示模组(23)提供支撑性能，支撑架(33)的结构简单，不会占用多余的空间。支撑架(33)的行程为驱动机构(31)的行程的两倍，显示模组(23)的行程为支撑架(33)行程的两倍，因此驱动机构(31)的行程仅为显示模组(23)行程的四分之一，对驱动机构(31)的行程要求较低。

Description

柔性显示装置
交叉引用
本公开要求于2022年8月26日提交的申请号为202211035253.3名称为“柔性显示装置”的中国专利申请的优先权，该中国专利申请的全部内容通过引用全部并入本文。
技术领域
本公开涉及显示技术领域，具体而言，涉及一种柔性显示装置。
背景技术
柔性显示屏具有良好的折叠与弯曲性能，部分柔性显示装置的显示面积可随用户不同场景的需求变化，成为未来柔性显示的重要发展方向。
现有的柔性显示装置中，显示模组的驱动部分和支撑部分是分别单独设置的，结构复杂且占用空间大，不利于柔性显示装置的轻薄化。
需要说明的是，在上述背景技术部分公开的信息仅用于加强对本公开的背景的理解，因此可以包括不构成对本领域普通技术人员已知的现有技术的信息。
发明内容
本公开提供一种柔性显示装置。
根据本公开的一个方面，提供一种柔性显示装置，包括固定结构、滑动机构和驱动支撑机构，固定结构包括第一固定壳体；滑动机构包括显示模组、连接架和滚轴，连接架包括安装部，安装部沿第一方向间隔设于第一固定壳体的一侧，滚轴转动连接于连接架上，显示模组卷绕于滚轴外，并与第一固定壳体连接；驱动支撑机构包括驱动机构、第一导向件和支撑架，第一导向件设于第一固定壳体与连接架之间，驱动机构的固定部分安装于第一固定壳体上，驱动机构的活动部分与第一导向件固定连接，支撑架包括至少一个支撑单元，支撑单元包括第一连接件，第一连接件的一端铰接于连接架上，另一端滑动连接于第一导向件上， 第一连接件与第一导向件之间的夹角不等于90度。
在本公开的一个实施例中，支撑单元还包括第二连接件，第二连接件的一端转动连接于第一连接件的另一端，第二连接件与第一连接件的连接处设有滑块，滑块滑动连接于第一导向件上，第二连接件的另一端与第一固定壳体铰接，第二连接件与第一导向件之间的夹角不等于90度。
在本公开的一个实施例中，第一固定壳体具有第一连接部，连接架具有第二连接部，支撑架包括两个支撑单元，两个支撑单元的第一连接件均铰接于第二连接部，两个支撑单元的第二连接件均铰接于第一连接部。
在本公开的一个实施例中，驱动支撑机构包括多个支撑架，多个支撑架沿第二方向依次设置，第二方向垂直于第一方向。
在本公开的一个实施例中，相邻两个第一连接部之间的距离大于等于两个第一连接杆的长度之和，相邻两个第二连接部之间的距离大于等于两个第二连接杆的长度之和，第一连接杆与第二连接杆的长度相等。
在本公开的一个实施例中，滑动机构还包括柔性支撑板，柔性支撑板固定显示模组上，柔性支撑板部分位于支撑架与显示模组之间，部分位于滚轴与显示模组之间。
在本公开的一个实施例中，连接架还包括连接臂，连接臂沿第二方向设于安装部的两侧，且沿第一方向朝靠近第一固定壳体的一侧延伸，连接臂的两侧设有轨道板，轨道板靠近连接臂的一侧设有导向条，导向条上滑动连接有导向件，导向件与柔性支撑板固定连接。
在本公开的一个实施例中，滑动机构还包括滑动壳体，滑动壳体包括弧形板，弧形板位于显示模组的卷曲部远离滚轴的一侧，弧形板位于第二方向上的两端分别设有连接结构，连接结构沿第一方向延伸，且与轨道板和/或连接臂连接。
在本公开的一个实施例中，连接结构包括第一连接板和第二连接板，第一连接板设于轨道板远离连接臂的一侧，第二连接板设于第一连接板的外缘，且位于显示模组远离柔性支撑板的一侧，第二连接板遮挡显示模组的部分边缘。
在本公开的一个实施例中，滑动机构还包括盖板，盖板沿第三方向设于滑动壳体远离第一固定壳体的一侧，第三方向垂直于第一方向和第二方向，显示模组由滚轴延伸至柔性支撑板与盖板之间。
在本公开的一个实施例中，固定结构还包括第二固定壳体，第二固定壳体设于驱动支撑机构远离第一固定壳体的一侧，第二固定壳体包括第一部分、转接部和第二部分，第一部分与第一固定壳体固定连接，转接部与第一部分连接，且沿第三方向向第一固定壳体延伸，第二部分与转接部靠近第一固定壳体的一端连接，显示模组在第三方向上位于盖板与第二部分之间。
在本公开的一个实施例中，沿第二方向，第二固定壳体的两侧设有支边，支边与第一部分位于同一平面，第二连接板搭接于支边靠近第一固定壳体的一侧。
在本公开的一个实施例中，固定结构还包括第一遮挡壳体和第二遮挡壳体，第一遮挡壳体和第二遮挡壳体固定连接至第一固定机壳上，第一遮挡壳体沿第二方向位于第一固定壳体的两侧，且与第一连接板至少部分交叠，第二遮挡壳体部分设于显示模组远离第一固定壳体的一侧，并遮挡显示模组的边缘未被第二连接板遮挡的部分。
在本公开的一个实施例中，连接结构沿第二方向远离轨道板的一侧设有滑槽，第一遮挡壳体配合滑槽内。
在本公开的一个实施例中，驱动机构包括电机和驱动件，电机设于第一固定壳体上，驱动件的一端与电机的转轴螺纹连接，驱动件的另一端与第一导向件固定连接。
在本公开的一个实施例中，驱动机构还包括第二导向件，第二导向件连接于第一固定壳体上，第二导向件沿第一方向延伸，驱动件滑动连接于第二导向件上。
在本公开的一个实施例中，驱动支撑机构包括至少一对驱动机构，一对驱动机构包括两个驱动机构，每对驱动机构的两个驱动机构关于第一固定壳体沿第一方向的中线对称设置。
本公开的柔性显示装置包括驱动支撑机构和滑动机构，驱动支撑机构包括驱动机构、第一导向件和支撑架，滑动机构包括显示模组、连接 架和滚轴。当驱动机构的活动部分带动第一导向件运动时，第一连接件会在第一导向件上滑动，使得第一连接件与第一导向件之间的夹角，以及第一导向件与连接架之间的距离改变，此时安装于连接架上的滚轴以滚动摩擦的方式带动显示模组发生滑动。驱动机构在带动滑动机构运动时，支撑架始终为显示模组提供支撑性能，支撑架的结构简单，不会占用多余的空间。支撑架的行程为驱动机构的活动部分的两倍，显示模组的行程为支撑架行程的两倍，因此驱动机构的行程仅为显示模组行程的四分之一，对驱动机构的行程要求较低。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。显而易见地，下面描述中的附图仅仅是本公开的一些实施例，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为本公开实施例涉及的柔性显示装置收起时的一种结构示意图。
图2为本公开实施例涉及的柔性显示装置展开时的一种结构示意图。
图3为本公开实施例涉及的柔性显示装置的爆炸图。
图4为图1的A-A剖视方向的结构示意图。
图5为图2的B-B剖视方向的结构示意图。
图6为图2的C-C剖视方向部分结构的示意图。
图7为本公开实施例涉及的柔性显示装置内部的部分结构的示意图。
图8为本公开实施例涉及的驱动支撑机构的结构示意图。
图9为本公开实施例涉及的柔性显示装置收起时的另一种结构示意图。
图10为本公开实施例涉及的柔性显示装置展开时的另一种结构示意图。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本公开将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。图中相同的附图标记表示相同或类似的结构，因而将省略它们的详细描述。此外，附图仅为本公开的示意性图解，并非一定是按比例绘制。
虽然本说明书中使用相对性的用语，例如“上”“下”来描述图标的一个组件对于另一组件的相对关系，但是这些术语用于本说明书中仅出于方便，例如根据附图中所述的示例的方向。能理解的是，如果将图标的装置翻转使其上下颠倒，则所叙述在“上”的组件将会成为在“下”的组件。当某结构在其它结构“上”时，有可能是指某结构一体形成于其它结构上，或指某结构“直接”设置在其它结构上，或指某结构通过另一结构“间接”设置在其它结构上。
用语“一个”、“一”、“该”、“所述”和“至少一个”用以表示存在一个或多个要素/组成部分/等；用语“包括”和“具有”用以表示开放式的包括在内的意思并且是指除了列出的要素/组成部分/等之外还可存在另外的要素/组成部分/等；用语“第一”、“第二”和“第三”等仅作为标记使用，不是对其对象的数量限制。
本公开实施方式提供一种柔性显示装置。如图1至图10所示，该柔性显示装置包括固定结构、滑动机构和驱动支撑机构，固定结构包括第一固定壳体11；滑动机构包括显示模组23、连接架21和滚轴22，连接架21包括安装部211，安装部211沿第一方向间隔设于第一固定壳体11的一侧，滚轴22转动连接于连接架21上，显示模组23卷绕于滚轴22外，并与第一固定壳体11连接；驱动支撑机构包括驱动机构31、第一导向件32和支撑架33，第一导向件32设于第一固定壳体11与连接架21之间，驱动机构31的固定部分安装于第一固定壳体11上，驱动机构31的活动部分与第一导向件32固定连接，支撑架33包括至少一个支撑单元331，支撑单元331包括第一连接件3311，第一连接件3311的一端铰接于连接架21上，另一端滑动连接于第一导向件32上，第一连接件 3311与第一导向件32之间的夹角不等于90度。
当驱动机构31的活动部分带动第一导向件32运动时，第一连接件3311会在第一导向件32上滑动，使得第一连接件3311与第一导向件32之间的夹角，以及第一导向件32与连接架21之间的距离改变，此时安装于连接架21上的滚轴22以滚动摩擦的方式带动显示模组23发生滑动。驱动机构31在带动滑动机构运动时，支撑架33始终为显示模组23提供支撑性能，支撑架33的结构简单，不会占用多余的空间。支撑架33的行程为驱动机构31的活动部分的两倍，显示模组23的行程为支撑架33行程的两倍，因此驱动机构31的行程仅为显示模组23行程的四分之一，对驱动机构31的行程要求较低。
如图3至图6所示，柔性显示装置包括固定结构，固定结构包括第一固定壳体11，第一固定壳体11为矩形结构，第一固定壳体11包括第一固定板111、第一挡条112和两个第一挡块113，第一固定板111包括两个相互平行的第一边和两个相互平行的第二边，第一边的长度大于第二边的长度。第一边沿第一方向延伸，第二边沿第二方向延伸，第二方向垂直于第一方向。挡条设于第一固定板111的其中一条第一边上，两个第一挡块113分别设于第一固定板111的两条第二边上，第一档条和两个第一挡块113均沿第三方向延伸，第三方向垂直于第一方向和第二方向。需要说明的是，第一方向为图1中的x方向，第二方向为图1中的y方向，第二方向为图1中的z方向。
柔性显示装置还包括滑动机构，滑动机构包括显示模组23和连接架21，连接架21包括安装部211，安装部211沿第一方向间隔设于第一固定壳体11的一侧，安装部211上设有多个滚轴22，多个滚轴22转动连接于安装部211上，多个沿第一方向间隔分布，相邻两个滚轴22的之间的距离相等。显示模组23卷绕于滚轴22上，显示模组23包括第一平直部232、卷曲部231和第二平直部233，第一平直部232的一部分与第一固定壳体11连接，由第一固定壳体11延伸至滚轴22，卷曲部231卷绕于多个滚轴22外，并由滚轴22延伸至安装部211在第三方向上远离第一固定板111的一侧，第二平直部233沿第一方向向靠近第一固定壳体11的方向延伸。
安装部211在相邻两个滚轴22之间具有隔挡部2112，隔挡部2112设为圆弧形，隔挡部2112的弧度与滚轴22圆周的弧度基本相同。可以在安装部211上设置连接结构，通过连接结构将隔挡部2112与安装部211可拆卸连接。在显示模组23受到外力冲击时，隔档部对显示模组23起到一定的支撑作用。需要强调的是，可以沿第一方向将滚轴22相对于隔挡部2112略微凸出，保证显示模组23在滑动过程中始终与滚轴22接触，而不与隔档部接触，在起到支撑作用的同时，减小显示模组23在收起和展开过程中所受到的摩擦力。
连接架21沿第一方向移动时，显示模组23沿着滑卷方向运动，并通过显示模组23与滚轴22之间的摩擦力带动滚轴22转动。具体是当连接架21沿第一方向远离第一固定壳体11时，滚轴22顺时针转动，第一平直部232沿第一方向的长度变长，第二平直部233在第一方向上的长度缩短。因为显示模组23的总长度是不发生变化的，所以第二平直部233沿第一方向远离第一固定壳体11。当连接架21沿第一方向靠近第一固定壳体11时，滚轴22逆时针转动，第一平直部232沿第一方向的长度缩短，第二平直部233在第一方向上的长度变长，因为显示模组23的总长度是不发生变化的，所以第二平直部233沿第一方向靠近第一固定壳体11。
因为显示模组23与滚轴22的接触面为光滑面，因此二者之间可能会产生相对滑动，从而产生较大的摩擦力，影响显示模组23的正常伸缩。在本实施例中，滑动机构还包括柔性支撑板26，柔性支撑板26固定于显示模组23上，柔性支撑板26部分位于滚轴22与显示模组23之间。柔性支撑板26的表面比较粗糙，滚轴22直接接触柔性支撑板26，柔性支撑板26变显示模组23与滚轴22之间的滑动摩擦为滚动摩擦，以滚动摩擦的形式降低柔性支撑板26相对滑动时产生的摩擦阻力。
连接架21还包括两个连接臂212，连接臂212沿第二方向设于安装部211的两侧，且沿第一方向朝靠近第一固定壳体11的一侧延伸。连接臂212的两侧设有轨道板24，轨道板24靠近连接臂212的一侧设有限位结构241，限位结构241包括弧形限位板2411和两个平直限位板2412，两个平直限位板2412沿第一方向间隔设置，弧形限位板2411将两个平 直限位板2412远离第一固定壳体11的一端连接起来，弧形限位板2411和两个平直限位板2412围成一安装槽，连接臂212设于安装槽内，并与轨道板24固定在一起。
限位结构241的外侧设有导向条242，导向条242的形状与限位结构241的形状相似，导向条242包括弧形导向段2421和两个平直导向段2422，两个平直段沿第一方向间隔设置，弧形导向段2421将两个平直导向段2422远离第一固定壳体11的一端连接起来。导向条242与柔性支撑板26之间设有多个导向夹27，导向夹27与导向条242滑动连接，且与柔性支撑板26固定连接，多个导向夹27沿柔性支撑板26的边缘均匀设置，通过导向夹27与导向条242配合，将柔性支撑板26的弯折形态限定为与导向条242的形状相同，进而确定显示模组23的弯折形态，导向条242可以对柔性支撑板26及显示模组23在第三方向进行约束，降低滑卷过程中显示模组23的折痕量以及显示模组23自由端的翘起量。导向夹27可以设为挂钩，导向夹27咬合于导向条242上。
滑动机构还包括滑动壳体25，滑动壳体25包括弧形板251，弧形板251的形状与显示模组23的卷曲部231的形状相似，弧形板251在第一方向上的尺寸略大于显示模组23沿第一方向上的尺寸，弧形板251在第二方向上的尺寸略大于显示模组23沿第二方向上的尺寸，弧形板251在第三方向上的尺寸略大于显示模组23的卷曲部231在第三方向上的尺寸。弧形板251位于显示模组23的卷曲部231远离滚轴22的一侧，弧形板251对显示模组23的卷曲部231远离滚轴22的一侧形成防护。弧形板251位于第二方向上的两端分别设有连接结构252，连接结构252沿第一方向朝靠近第一固定壳体11的方向延伸，连接结构252与轨道板24连接，通过轨道板24固定滑动壳体25的位置，在连接臂212带动轨道板24沿第一方向运动时，滑动壳体25也沿着第一方向随之同动。
连接结构252可以包括第一连接板2521和第二连接板2522，第二连接板2522与第一连接板2521一体成型，第一连接板2521为平直结构，包括第一连接板2521在第三方向上的尺寸略大于显示模组23的第一平直部232与第二平直部233相互远离的一侧之间的距离，第一连接板2521设于轨道板24远离连接臂212的一侧。第二连接板2522包括弧形 连接段和两个平直连接段，两个平直连接段间隔设置，弧形连接段将两个平直连接段远离第一固定壳体11的一端连接起来，第二连接板2522设于第一连接板2521的外缘，具体是位于显示模组23远离柔性支撑板26的一侧。两个连接结构252的第二连接板2522在第二方向上相互靠近，第二连接板2522遮挡显示模组23的部分边缘，具体是弧形连接段遮挡显示模组23的卷曲部231的卷曲部231的边缘，两个平直连接段遮挡第一平直部232和第二平直部233的边缘。
固定结构还包括第二固定壳体12，第二固定壳体12包括第一部分121、转接部122和第二部分123，第一部分121与第一固定壳体11固定连接，转接部122与第一部分121连接，且沿第三方向向靠近第一固定壳体11的方向延伸，第二部分123与转接部122靠近第一固定壳体11的一端连接，第二固定壳体12与第一固定壳体11之间形成安装空间。第二固定壳体12位于第二方向的两侧设有支边124，支边124沿第一方向延伸，支边124与第一部分121位于同一平面，且与第一部分121一体成型。连接结构252的第二连接板2522搭接于支边124沿第三方向靠近第一固定壳体11的一侧。
滑动机构还包括盖板28，盖板28位于第二固定壳体12沿第三方向远离第一固定壳体11的一侧，具体是连接于滑动壳体25沿第三方向远离第一固定壳体11的一侧，第三方向垂直于第一方向和第二方向。显示模组23的第二平直部233沿第三方向位于盖板28与第二部分123之间。驱动支撑机构驱动连接架21沿第一方向移动时，会带动轨道板24和滑动壳体25与连接架21发生同动，滑动壳体25会带动盖板28移动。当盖板28沿第一方向运动至与第二固定壳体12的转接部122接触时，在盖板28与第二部分123之间可以形成容纳空间，此时第二平直部233位于容纳空间内。通过盖板28和第二固定壳体12对显示模组23的第二平直部233形成遮挡和防护。
可以理解的是，滑动壳体25可以对显示模组23的卷曲部231进行遮挡和防护，盖板28可以对显示模组23的第二平直部233进行遮挡和防护。
如图7至图10所示，柔性显示装置还包括驱动支撑机构，驱动支撑 机构用于驱动连接架21的安装部211沿第一方向移动，驱动支撑机构设于安装空间内。驱动支撑机构包括一对驱动机构31，一对驱动机构31包括沿第二方向分布的两个驱动机构31，两个驱动机构31关于第一固定壳体11沿第一方向的中线对称设置。驱动机构31包括电机311和驱动件312，驱动机构31的固定部分包括电机311的机壳3111，活动部分包括电机311的转轴3112和驱动件312，电机311的机壳3111设于第一固定板111上，电机311的转轴3112与驱动件312的一端螺纹连接，电机311的转轴3112转动时，可以促使驱动件312沿第一方向运动。
驱动机构31还包括第二导向件313，第二导向件313连接于第一固定壳体11上，第二导向件313沿第一方向延伸，第二导向件313在第二方向上与驱动件312间隔设置，驱动件312具有沿第二方向延伸的驱动连接部，驱动连接部滑动连接于第二导向件313上。第二导向件313可以为导轨，驱动连接部连接于第二导向件313外，也可以在第二导向件313上设置滑动轨道，将驱动连接部卡接于滑动轨道内。在本实施例中，可以将驱动件312设为板状结构，在保证连接稳定性的同时，可以减少占用空间。
驱动支撑机构还包括第一导向件32和多个支撑架33，第一导向件32为条形结构，第一导向件32沿第二方向延伸，第一导向件32沿第一方向位于第一固定壳体11与连接架21之间，第一导向件32与驱动件312的另一端固定连接，驱动件312沿第一方向运动时能带动第一导向件32跟随其进行同动。多个支撑架33沿第一方向设于第一固定壳体11与连接架21之间，第一固定壳体11沿第二方向设有多个第一连接部1111，连接架21沿第二方向设有多个第二连接部2111，每个第一连接部1111和每个第二连接部2111之间均设有一个支撑架33，支撑架33两端的第一连接部1111和第二沿第一方向位于同一条直线上，支撑架33的一端铰接于其中一个第一连接部1111上，另一端铰接于第二连接部2111上。
支撑架33包括两个支撑单元331，两个支撑单元331的一端均铰接于第二连接部2111，两个支撑单元331的另一端均铰接于第一连接部1111。支撑单元331包括第一连接件3311和第二连接件3312，第一连接件3311的一端铰接于第二连接部2111上，另一端滑动连接于第一导向 件32上，第二连接件3312的一端转动连接于第一连接件3311的另一端，第二连接件3312的另一端与第一连接部1111铰接。第二连接件3312与第一连接件3311的连接处设有滑块332，滑块332滑动连接于第一导向件32上，需要强调的是，滑块332与第二连接件3312与第一连接件3311的连接处无相对运动，但可于第一导向件32上滑动。第一导向件32上设有滑道321，可以将滑块332滑动连接于滑道321内。
为了使第一导向件32的受力在滑块332的滑动过程中保持平衡，可以将第一连接杆的长度与第二连接杆的长度设为相等。这样第一连接杆与第二连接杆的连接处所受之力在第一方向相互抵消，在第二方向上相互叠加，共同带动滑块332在第一导向件32上滑动。在显示模组23的滑卷过程中，为了防止相邻两个支撑架33之间相互干扰，对显示模组23的滑卷量造成限制，相邻两个第一连接部1111之间的距离大于等于两个第一连接杆的长度之和，相邻两个第二连接部2111之间的距离大于等于两个第二连接杆的长度之和。这样，即使在同一支撑架33的两个第一连接杆之间的夹角变为180度时，相邻两个支撑架33的第一连接杆也不会接触，即使在同一支撑架33的两个第二连接杆之间的夹角变为180度时，相邻两个支撑架33的第二连接杆也不会接触。
为了防止支撑单元331的第一连接件3311与第二连接件3312在相对转动过程中出现卡顿，需要保证第一连接件3311和第二连接件3312在第二方向始终受力。因此，第一连接件3311与第一导向件32之间的夹角不等于90度，第二连接件3312与第一导向件32之间的夹角不等于90度，即同一支撑架33的第一连接件3311与第二连接件3312之间的夹角始终小于180度。在滑块332沿第一导向件32的滑动过程中，两个支撑单元331始终关于第一连接部1111和第二连接部2111的连线保持对称，即两个支撑单元331的第一连接杆和第二连接杆组成菱形的支撑架33。
在柔性显示装置处于收起状态时，两个支撑单元331的第一连接杆在第二方向上位于同一条直线上，并与安装部211贴合在一起，两个支撑单元331的第二连接杆在第二方向上位于同一条直线上，并与第一固定板111贴合在一起。在第一导向件32沿第一方向远离第一固定壳体 11时，两个支撑单元331的第一连接杆之间的夹角变小，两个支撑单元331的第二连接杆之间的夹角变小，同一支撑单元331的第一连接杆和第二连接杆之间的夹角逐渐变大，两个滑块332受力在第一导向件32上沿第二方向相互靠近，此时第一导向件32与第一固定壳体11在第一方向上距离逐渐增大，连接架21的安装部211与第一导向件32在第一方向上的距离也逐渐增大。在柔性显示装置由滑开状态变为收起状态时，驱动支撑机构各个部件的运动方式相反，在此不再进行赘述。
需要说明的是，第一导向件32位于驱动件312沿第三方向靠近第一固定板111的一侧，支撑架33位于第一导向件32沿第三方向靠近第一固定板111的一侧，柔性支撑板26粘接于显示模组23靠近支撑架33和滚轴22的一侧。支撑架33和第一导向件32的结构比较简单，安装比较方便，在第三方向上，第一导向件32和支撑架33并未占用多余的空间，有利于柔性显示装置的轻薄化。可以理解的是，柔性显示装置无论是收起状态还是滑动展开过程中，支撑架33始终对柔性支撑板26起支撑作用。
柔性显示装置展开过程中，电机311的转轴3112旋转带动驱动件312沿第一方向滑动，推动驱动件312向第一方向伸展。两个电机311同时启动，因此两个驱动件312的伸出长度一致，推动第一导向件32仅沿第一方向平移。第一导向件32沿第一方向移动的同时，推动多个支撑架33沿第一方向同步展开，支撑架33展开时带动连接架21沿第一方向运动，此时滚轴22以滚动摩擦的形式带动柔性支撑板26发生滑动，显示模组23随着柔性支撑板26同动，从而实现显示模组23的滑开和收起。值得注意的是，除电机311中驱动件312沿第一方向运动外，为保证运动过程中的流畅性，第二导向件313限制了驱动件312除第一方向外的所有自由度。
柔性显示装置展开过程中，当电机311沿第一方向的运动行程为L时，第一导向件32沿第一方向的运动行程也为L，与第一导向件32配合的滑块332的运动行程也为L，第一连接杆和第二连接杆的运动行程均为L，因此支撑架33的行程为2L。当支撑架33的运动行程为2L时，连接架21的运动行程也为2L，则安装于连接架21上的滚轴22的转动 行程也为2L，卷曲部231的运动行程与滚轴22的转动行程相同，也为2L，则第一平直部232的长度增加2L，第二平直部233的长度减小2L，因此显示模组232的总行程为4L。第一平直部232位显示模组23的显示区域，显示区域沿第一方向的尺寸扩大2L。
如图1和图2所示，固定结构还包括第一遮挡壳体13和第二遮挡壳体14，第一遮挡壳体13和第二遮挡壳体14通过螺栓固定连接至第一固定机壳上，第一遮挡壳体13沿第二方向位于第一固定壳体11的两侧，且与第一连接板2521至少部分交叠，第二遮挡壳体14部分设于显示模组23远离第一固定壳体11的一侧，并遮挡显示模组23的边缘未被第二连接板2522遮挡的部分。连接结构252沿第二方向远离轨道板24的一侧设有滑槽，第一遮挡壳体13配合滑槽内。可以理解的是，第一遮挡壳体13和第二遮挡壳体14的作用在于防止柔性显示装置内部的结构发生裸露。
需要说明的是，该柔性显示装置除了固定结构、滑动机构和驱动支撑机构以外，还包括其他必要的部件和组成，以显示器为例，具体例如电路板、电源线，等等，本领域技术人员可根据该柔性显示装置的具体使用要求进行相应地补充，在此不再赘述。
该柔性显示装置可以是传统电子设备，例如：手机、电脑、电视和摄录放影机，也可以是新兴的穿戴设备，例如VR眼镜，在此不一一进行列举。
本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施方式仅被视为示例性的，本公开的真正范围和精神由权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限定。

Claims (17)

  1. 一种柔性显示装置，其中，包括：
    固定结构，包括第一固定壳体；
    滑动机构，包括显示模组、连接架和滚轴，所述连接架包括安装部，所述安装部沿第一方向间隔设于所述第一固定壳体的一侧，所述滚轴转动连接于所述连接架上，所述显示模组卷绕于所述滚轴外，并与所述第一固定壳体连接；
    驱动支撑机构，包括驱动机构、第一导向件和支撑架，所述第一导向件设于所述第一固定壳体与所述连接架之间，所述驱动机构的固定部分安装于所述第一固定壳体上，所述驱动机构的活动部分与所述第一导向件固定连接，所述支撑架包括至少一个支撑单元，所述支撑单元包括第一连接件，所述第一连接件的一端铰接于所述连接架上，另一端滑动连接于所述第一导向件上，所述第一连接件与所述第一导向件之间的夹角不等于90度。
  2. 根据权利要求1所述的柔性显示装置，其中，所述支撑单元还包括第二连接件，所述第二连接件的一端转动连接于所述第一连接件的另一端，所述第二连接件与所述第一连接件的连接处设有滑块，所述滑块滑动连接于所述第一导向件上，所述第二连接件的另一端与所述第一固定壳体铰接，所述第二连接件与所述第一导向件之间的夹角不等于90度。
  3. 根据权利要求2所述的柔性显示装置，其中，所述第一固定壳体具有第一连接部，所述连接架具有第二连接部，所述支撑架包括两个支撑单元，两个所述支撑单元的第一连接件均铰接于所述第二连接部，两个所述支撑单元的第二连接件均铰接于所述第一连接部。
  4. 根据权利要求1至3任一项所述的柔性显示装置，其中，所述驱动支撑机构包括多个支撑架，多个所述支撑架沿第二方向依次设置，所述第二方向垂直于所述第一方向。
  5. 根据权利要求3所述的柔性显示装置，其中，相邻两个第一连接部之间的距离大于等于两个第一连接杆的长度之和，相邻两个第二连接部之间的距离大于等于两个第二连接杆的长度之和，第一连接杆与第二 连接杆的长度相等。
  6. 根据权利要求4所述的柔性显示装置，其中，所述滑动机构还包括柔性支撑板，所述柔性支撑板固定所述显示模组上，所述柔性支撑板部分位于所述支撑架与所述显示模组之间，部分位于所述滚轴与所述显示模组之间。
  7. 根据权利要求6所述的柔性显示装置，其中，所述连接架还包括连接臂，所述连接臂沿所述第二方向设于所述安装部的两侧，且沿所述第一方向朝靠近所述第一固定壳体的一侧延伸，所述连接臂的两侧设有轨道板，所述轨道板靠近所述连接臂的一侧设有导向条，所述导向条上滑动连接有导向件，所述导向件与所述柔性支撑板固定连接。
  8. 根据权利要求7所述的柔性显示装置，其中，所述滑动机构还包括滑动壳体，所述滑动壳体包括弧形板，所述弧形板位于所述显示模组的卷曲部远离所述滚轴的一侧，所述弧形板位于所述第二方向上的两端分别设有连接结构，所述连接结构沿第一方向延伸，且与所述轨道板和/或所述连接臂连接。
  9. 根据权利要求8所述的柔性显示装置，其中，所述连接结构包括第一连接板和第二连接板，所述第一连接板设于所述轨道板远离所述连接臂的一侧，所述第二连接板设于所述第一连接板的外缘，且位于所述显示模组远离所述柔性支撑板的一侧，所述第二连接板遮挡所述显示模组的部分边缘。
  10. 根据权利要求9所述的柔性显示装置，其中，所述滑动机构还包括盖板，所述盖板沿第三方向设于所述滑动壳体远离所述第一固定壳体的一侧，所述第三方向垂直于所述第一方向和所述第二方向，所述显示模组由所述滚轴延伸至所述柔性支撑板与所述盖板之间。
  11. 根据权利要求10所述的柔性显示装置，其中，所述固定结构还包括第二固定壳体，所述第二固定壳体设于所述驱动支撑机构远离所述第一固定壳体的一侧，所述第二固定壳体包括第一部分、转接部和第二部分，所述第一部分与所述第一固定壳体固定连接，所述转接部与所述第一部分连接，且沿所述第三方向向所述第一固定壳体延伸，所述第二部分与所述转接部靠近第一固定壳体的一端连接，所述显示模组在所述 第三方向上位于所述盖板与所述第二部分之间。
  12. 根据权利要求11所述的柔性显示装置，其中，沿所述第二方向，所述第二固定壳体的两侧设有支边，所述支边与所述第一部分位于同一平面，所述第二连接板搭接于所述支边靠近所述第一固定壳体的一侧。
  13. 根据权利要求9所述的柔性显示装置，其中，所述固定结构还包括第一遮挡壳体和第二遮挡壳体，第一遮挡壳体和第二遮挡壳体固定连接至所述第一固定机壳上，所述第一遮挡壳体沿所述第二方向位于所述第一固定壳体的两侧，且与所述第一连接板至少部分交叠，所述第二遮挡壳体部分设于所述显示模组远离所述第一固定壳体的一侧，并遮挡所述显示模组的边缘未被所述第二连接板遮挡的部分。
  14. 根据权利要求13所述的柔性显示装置，其中，所述连接结构沿所述第二方向远离所述轨道板的一侧设有滑槽，所述第一遮挡壳体配合所述滑槽内。
  15. 根据权利要求1所述的柔性显示装置，其中，所述驱动机构包括电机和驱动件，所述电机设于所述第一固定壳体上，所述驱动件的一端与所述电机的转轴螺纹连接，所述驱动件的另一端与所述第一导向件固定连接。
  16. 根据权利要求15所述的柔性显示装置，其中，所述驱动机构还包括第二导向件，所述第二导向件连接于所述第一固定壳体上，所述第二导向件沿所述第一方向延伸，所述驱动件滑动连接于所述第二导向件上。
  17. 根据权利要求16所述的柔性显示装置，其中，所述驱动支撑机构包括至少一对驱动机构，一对驱动机构包括两个驱动机构，每对驱动机构的两个所述驱动机构关于所述第一固定壳体沿所述第一方向的中线对称设置。
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