WO2021120849A1 - 折叠屏及折叠显示终端 - Google Patents

折叠屏及折叠显示终端 Download PDF

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Publication number
WO2021120849A1
WO2021120849A1 PCT/CN2020/123639 CN2020123639W WO2021120849A1 WO 2021120849 A1 WO2021120849 A1 WO 2021120849A1 CN 2020123639 W CN2020123639 W CN 2020123639W WO 2021120849 A1 WO2021120849 A1 WO 2021120849A1
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WO
WIPO (PCT)
Prior art keywords
folding
screen
sliding
folding body
flexible display
Prior art date
Application number
PCT/CN2020/123639
Other languages
English (en)
French (fr)
Inventor
马成光
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US17/779,412 priority Critical patent/US20220413555A1/en
Priority to EP20901196.4A priority patent/EP4080491A4/en
Publication of WO2021120849A1 publication Critical patent/WO2021120849A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • G—PHYSICS
    • G06—COMPUTING; 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
    • G06F1/1615—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
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1624—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 sliding enclosures, e.g. sliding keyboard or display
    • 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
    • G06F1/1679—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts for locking or maintaining the movable parts of the enclosure in a fixed position, e.g. latching mechanism at the edge of the display in a laptop or for the screen protective cover of a PDA
    • 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

Definitions

  • This application relates to the field of display screens, for example, to a folding screen and a folding display terminal.
  • the mainstream folding methods of folding screens have two forms: inward folding and outward folding. Different folding methods have different technical implementation difficulties. Inward folding of the screen needs to solve the problem of the bending and rounding of the screen and the deformation of the screen after folding.
  • the main difficulty of folding the screen outside is that the side lengths of the folding body in the folded state and the flat state are different, so most of the folding screens are designed to switch the side length by designing a hinged shaft, that is, to ensure the outer arc surface.
  • the length of the screen remains unchanged, and the folding and unfolding states can be smoothly switched by changing the length of the inner arc structure.
  • the structure of this hinged shaft is more complicated, the life test is difficult to pass, and the development cycle of the hinged shaft is too long, and is affected by the turning radius of the hinged shaft, after folding, the gap between the two folding halves is large. .
  • the solution includes a flexible display screen 1', a first folding body 21', a second folding body 22', a rotating shaft 3'and a sliding shaft 4'.
  • the first folding body 21' and the second folding body 22' are arranged to support the flexible display screen 1'.
  • the first folding body 21' and the second folding body 22' are rotatably connected by a rotating shaft 3'to realize the folding and unfolding of the flexible display screen 1'.
  • the first folding body 21' and the second folding body 22' are respectively connected to the rotating shaft 3'via the sliding shaft 4', and are arranged to realize the sliding of the first folding body 21' relative to the second folding body 22'.
  • this solution integrates the rotating shaft and the sliding shaft into the folding area of the folding screen, and its structure is more complicated, the realization is difficult, and the cost is high; and the integrated solution of the rotating shaft and the sliding shaft, folding When the screen is unfolded, there is a large gap in the area of the rotating shaft, which affects the aesthetics of the product.
  • the folding body does not support the flexible display screen. It is difficult to ensure the strength of the product to pass the life test.
  • This application provides a folding screen and a folding display terminal, so that the folding screen has a simple structure, easy implementation, high strength, and beautiful appearance.
  • a folding screen including:
  • a flexible display screen and a first folding body and a second folding body configured to support the flexible display screen
  • a rotating shaft is arranged between the first folding body and the second folding body, and is arranged to make the first folding body and the second folding body relatively rotate;
  • a sliding mechanism is arranged on the first folding body and/or the second folding body, and is arranged to cause the first folding body to rotate relative to the second folding body
  • the flexible display screen slides relative to the first folding body and the second folding body.
  • a foldable display terminal is also provided, including the above-mentioned foldable screen.
  • Figure 1 is a front view of a folding screen
  • Figure 2 is a front view of a folding screen provided by an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a folding screen in an unfolded state according to an embodiment of the present application
  • FIG. 4 is a schematic structural diagram of a folding screen in a folded state according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a folding screen in the folding process provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a folding screen provided by an embodiment of the present application after the flexible display screen is removed;
  • FIG. 7 is a schematic structural diagram of a first folding body of a folding screen provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a sliding mechanism of a folding screen provided by an embodiment of the present application.
  • FIG. 9 is an exploded schematic diagram of a sliding mechanism of a folding screen provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a sliding shaft of a folding screen provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a sliding seat of a folding screen provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a rotating shaft of a folding screen provided by an embodiment of the present application.
  • FIG. 13 is an exploded schematic diagram of a rotating shaft of a folding screen provided by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a concave tooth member of a folding screen provided by an embodiment of the present application.
  • 15 is a schematic structural diagram of a convex tooth member of a folding screen provided by an embodiment of the present application.
  • 16 is a schematic structural diagram of a folding screen with a locking mechanism provided by an embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of a folding screen used in an inner folding screen provided by an embodiment of the present application.
  • FIG. 18 is a schematic structural diagram of a folding screen used in a double folding screen provided by an embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of another folding screen used in a double folding screen provided by an embodiment of the present application.
  • 20 is a schematic structural diagram of a folding screen with rollers and rolling grooves provided by an embodiment of the present application.
  • 21 is a schematic diagram of the structure of a roller and a rolling groove provided by an embodiment of the present application.
  • FIG. 22 is a schematic structural diagram of a folding screen with a screen retractable space provided by an embodiment of the present application.
  • FIG. 23 is a schematic structural diagram of another folding screen with screen expansion and contraction space provided by an embodiment of the present application.
  • 1'-flexible display screen 21'-first folding body; 22'-second folding body; 3'-rotating shaft; 4'-sliding shaft;
  • 1-flexible display screen 21-first folding body; 211-fixing part; 212-sliding part; 22-second folding body; 23-third folding body; 3-rotating shaft; 31-convex tooth part; 311- Convex tooth; 32-concave tooth piece; 321-concave tooth; 33-fixed shaft; 34-fixed sleeve; 35-top spring; 36-circlip; 4-sliding mechanism; 41-sliding seat; 411-sliding groove; 412-second sliding groove; 42-sliding shaft; 421-first sliding groove; 43-elastic member; 44-first pushing rod; 45-second pushing rod; 46-first rivet shaft; 47-second rivet Shaft; 48-slot; 49-elastic fastener; 51-roller; 52-rolling groove; 6-deformable liner; 7-locking mechanism; 8-screen telescopic space.
  • connection should be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrated; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be a connection between two elements or an interaction relationship between two elements.
  • connection may be fixedly connected, detachably connected, or integrated; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be a connection between two elements or an interaction relationship between two elements.
  • the "above” or “below” of the first feature of the second feature may include the first and second features in direct contact, or the first and second features are not directly in contact with each other. The contact is through another feature between them.
  • the "above”, “above” and “above” of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher in level than the second feature.
  • the “below”, “below” and “below” of the second feature of the first feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
  • FIG. 2 is a front view of a folding screen provided by an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a folding screen in an unfolded state according to an embodiment of the present application;
  • FIG. 4 is a schematic structural diagram of a folding screen in a folded state according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a folding screen in the folding process provided by an embodiment of the present application.
  • Fig. 6 is a schematic structural diagram of a folding screen provided by an embodiment of the present application after the flexible display screen is removed. 2-6, an embodiment of the present application proposes a folding screen, including a flexible display screen 1, a first folding body 21, a second folding body 22, a rotating shaft 3, and a sliding mechanism 4.
  • the first folding body 21 and the second folding body 22 are arranged to support and protect the flexible display screen 1;
  • the rotating shaft 3 is arranged between the first folding body 21 and the second folding body 22, and is arranged so that the first folding body 21 and The second folding body 22 can be relatively rotated;
  • the sliding mechanism 4 is arranged on the first folding body 21, and is arranged to make the flexible display screen 1 relative to the first folding body when the first folding body 21 rotates relative to the second folding body 22 21 slides to adapt to the change of the outer side length of the first folding body 21 and the second folding body 22 in the folded state and the unfolded state.
  • the folding screen provided by the embodiment of the present application is realized by rotating and sliding, and has a simple structure and a long opening and closing life of the folding screen. Since the rotating shaft 3 and the sliding mechanism 4 of the embodiment of the present application are arranged separately, the rotating shaft 3 is simplified, and the overall structure of the folding screen is simplified, which is easier to manufacture and lower in cost; and the sliding mechanism 4 of the embodiment of the present application is provided On the first folding body 21 instead of on the rotating shaft 3, the gap at the rotating shaft 3 is reduced, the folding area of the flexible display screen 1 can be better supported, and the structural strength of the folding screen can be improved; At the same time, the folding screen of the embodiment of the present application can make the first folding body 21 and the second folding body 22 fit as closely as possible in the folded state, which greatly reduces the gap between the first folding body 21 and the second folding body 22. The seam improves the aesthetics of the folding screen.
  • the first folding body 21 includes a fixing part 211 and a sliding part 212, wherein the fixing part 211 is fixedly connected to the rotating shaft 3, and the sliding part 212 is connected to the non-folding area of the flexible display screen 1.
  • the sliding member 212 and the fixing member 211 are connected by a sliding mechanism 4 in a fixed connection.
  • one side of the flexible display screen 1 is fixedly connected to the second folding body 22, and the other side is fixedly connected to the sliding member 212. Therefore, when the sliding member 212 slides relative to the fixed member 211 through the sliding mechanism 4, It can drive the flexible display screen 1 to slide synchronously.
  • the sliding part 212 synchronously drives the flexible display screen 1 to slide in a direction away from the rotation axis 3 relative to the fixed part 211, thereby achieving flexibility. Compatibility of the external side length difference of the display screen 1 from the folded state to the unfolded state.
  • FIG. 7 is a schematic structural diagram of a first folding body of a folding screen provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a sliding mechanism of a folding screen provided by an embodiment of the present application.
  • FIG. 9 is an exploded schematic diagram of a sliding mechanism of a folding screen provided by an embodiment of the present application.
  • Fig. 10 is a schematic structural diagram of a sliding shaft of a folding screen provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a sliding seat of a folding screen provided by an embodiment of the present application.
  • the sliding mechanism 4 includes a sliding shaft 42 and a sliding seat 41, wherein the sliding shaft 42 is fixedly connected to the sliding member 212, and the sliding seat 41 is fixedly connected to the fixing member 211.
  • the sliding shaft 42 in the embodiment of the present application has a sheet-like structure, and its two opposite sides can be used as guide rails, and the two opposite sides of the sliding seat 41 are provided with sliding grooves 411, and the sliding shaft 42 can be slidably mounted on the sliding seat 41 through the guide rails. ⁇ 411 ⁇ In the sliding groove 411. This arrangement enables the sliding member 212 to slide relative to the fixed member 211 when the sliding shaft 42 slides relative to the sliding seat 41, and the structure is simple and sliding smoothly.
  • the sliding mechanism 4 of the embodiment of the present application further includes an elastic mechanism, which is configured to pull the sliding shaft 42 to move relative to the sliding seat 41, thereby driving the sliding member 212 to slide relative to the fixing member 211, thereby making the folding screen There is a tendency to expand.
  • the embodiment of the present application provides the inherent driving force for unfolding the folding screen through the inherent continuous elastic force of the elastic mechanism, so that the folding screen is easier to be unfolded, and the operation convenience is improved.
  • the elastic mechanism of the embodiment of the present application includes an elastic member 43 and a first push rod 44 and a second push rod 45 that are slidably fitted.
  • One end of the first push rod 44 is slidably connected to the sliding shaft 42.
  • One end of the two pushing rods 45 is slidably connected to the sliding seat 41, and the elastic member 43 is connected between the first pushing rod 44 and the second pushing rod 45.
  • the sliding shaft 42 is provided with a first sliding groove 421, and the sliding seat 41 is provided with a second sliding groove 412.
  • the first sliding groove 421 and the second sliding groove 412 are both perpendicular to the sliding direction of the sliding shaft 42, and the first pushing rod 44
  • One end of the second push rod 45 is slidably connected to the first sliding groove 421 through the first rivet shaft 46; one end of the second push rod 45 is slidably connected to the second sliding groove 412 through the second rivet shaft 47.
  • the first push rod 44 and the second push rod 45 can be moved closer to or away from each other, so that the elastic member 43 is compressed or elongated.
  • the internal pushing force or internal pulling force of the elastic member 43 can provide an internal driving force for the unfolding of the folding screen, so that the folding screen can be unfolded more easily.
  • the elastic member 43 is a compression spring, which can provide internal thrust, so that the sliding shaft 42 drives the sliding member 212 to slide in a direction away from the rotating shaft 3, so that the folding screen has a tendency to unfold.
  • the folding screen of the embodiment of the present application further includes a damping mechanism, which is arranged on the rotating shaft 3 and/or the sliding mechanism 4, and is arranged to provide a pause damping force for the unfolding of the folding screen , And the pause damping force is greater than the elastic force provided by the elastic mechanism.
  • the damping mechanism of the embodiment of the present application includes a sliding damping mechanism provided on the sliding mechanism 4, which is configured to provide a sliding pause damping force for the sliding of the sliding member 212, and the sliding pause damping force is greater than the elastic force provided by the elastic mechanism.
  • the sliding damping mechanism of the embodiment of the present application includes at least one slot 48 arranged on one of the sliding shaft 42 and the sliding seat 41, and at least one elastic engaging member arranged on the other of the sliding shaft 42 and the sliding seat 41 49.
  • the slot 48 and the elastic engaging member 49 cooperate to provide limit damping.
  • the elastic engaging member 49 can be an elastic buckle. Exemplarily, referring to FIGS.
  • the embodiment of the present application is provided with a plurality of grooves 48 on the sliding shaft 42, and an elastic buckle is provided on the sliding seat 41, and the groove 48 corresponds to the shape of the elastic buckle.
  • the sliding mechanism with damping function of the present application can also have many realization forms, for example, realized by the form of a groove and a spring ball structure, etc. Therefore, as long as it is a sliding mechanism with a damping function, it is within the protection scope of the present application.
  • FIG. 12 is a schematic structural diagram of a rotating shaft of a folding screen provided by an embodiment of the present application.
  • FIG. 13 is an exploded schematic diagram of a rotating shaft of a folding screen provided by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a concave tooth member of a folding screen provided by an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a convex tooth member of a folding screen provided by an embodiment of the present application. 12-15, the rotating shaft 3 provided by the embodiment of the present application is installed between the first folding body 21 and the second folding body 22, so that the flexible display screen 1 can be opened and closed within an angle range of 180°.
  • the damping mechanism of the embodiment of the present application also includes a rotation damping mechanism provided on the rotation shaft 3, which is configured to provide a rotation pause damping force so that the folding screen can be stably maintained at a folding angle.
  • the rotation pause damping force is also greater than that of the sliding mechanism 4.
  • the embodiment of the present application is provided with a damped rotating shaft 3, which can provide a good hand-feeling experience for the opening and closing of the folding screen, and at the same time, it is convenient for the user to fold the folding screen to any angle for fixation, and prevent looseness and shaking.
  • the rotation damping mechanism and the sliding damping mechanism in the embodiment of the present application have the same function, and in actual production, only one of the two needs to be provided.
  • the rotation damping mechanism includes a convex tooth member 31 and a concave tooth member 32.
  • the concave tooth member 32 is mounted on one of the first folding body 21 and the second folding body 22,
  • the male tooth member 31 is mounted on the other of the first folding body 21 and the second folding body 22,
  • the female tooth member 32 and the male tooth member 31 are located on the same central axis, and
  • the female tooth member 32 is provided with a plurality of female teeth 321
  • the convex tooth member 31 is provided with a plurality of convex teeth 311, and the convex tooth member 31 and the female tooth member 32 can mesh and rotate with each other.
  • the concave tooth 321 restricts the convex tooth 311 to generate a rotational damping force on the rotation of the convex tooth member 31.
  • the different concave teeth 321 on the concave tooth member 32 can realize the stop position of the convex tooth member 31 at different angles.
  • the concave tooth member 32 is provided with eight concave teeth 321, and the convex tooth member 31 is provided with two convex teeth 311, so as to simplify the part structure and improve the folding stability.
  • the concave teeth 321 and the convex teeth 311 may also be set to other numbers according to needs, which is not limited to the embodiment of the present application.
  • the rotating shaft 3 of the embodiment of the present application further includes a fixed shaft 33, a fixed sleeve 34, a tightening spring 35 and a circlip 36, wherein the fixed sleeve 34 is mounted on the first folding body 21 or the second folding body 22
  • the female tooth member 32 is sleeved in the fixed sleeve 34
  • the fixed shaft 33 sequentially penetrates the male tooth member 31, the female tooth member 32 and the fixed sleeve 34
  • the tension spring 35 is sleeved on the fixed shaft 33 and abuts against
  • the fixed sleeve 34 and the female tooth member 32 one end of the fixed shaft 33 is clamped with the convex tooth member 31, and the other end of the fixed shaft 33 is clamped with the fixed sleeve 34 through a circlip 36.
  • the female tooth member 32 and the male tooth member 31 are continuously tightly connected by the tightening spring 35, which effectively ensures the reliability of the rotation damping mechanism, and prevents the female tooth member 32 from being separated from the male tooth member 31 and causing rotation Axis 3 failed.
  • the folding screen of the embodiment of the present application further includes a deformable liner 6, which is provided in the folding area of the flexible display screen 1 (ie near the rotation axis 3), and the deformable liner 6 is set to support and protect the folding area of the flexible display screen 1.
  • the deformable pad 6 is a silicone pad.
  • the silicone pad has better flexibility and better high temperature resistance and wear resistance.
  • the silicone pad can be elastically deformed by itself to fill and slide.
  • the gap between the member 212 and the rotating shaft 3 is to form effective support and protection for the flexible display screen 1, thereby improving the structural strength of the folding screen; at the same time, improving the aesthetics of the folding screen and increasing the service life of the product.
  • Fig. 16 is a schematic structural diagram of a folding screen with a locking mechanism provided by an embodiment of the present application.
  • the folding screen of the embodiment of the present application further includes a locking mechanism 7 provided between the first folding body 21 and the second folding body 22 and configured to lock the flexible display screen 1 in the folded state.
  • the locking mechanism 7 is provided to increase the stability of the folding screen in the folded state, avoid the phenomenon of loose folding of the folding screen, reduce the continuous unfolding force of the folding screen, and improve the folding screen. Service life.
  • the locking mechanism 7 of the embodiment of the present application may be a snap structure, a permanent magnet structure, or an electromagnet structure.
  • the locking mechanism 7 includes two permanent magnets, which are respectively arranged at the end positions on the opposite sides of the first folding body 21 and the second folding body 22.
  • the magnetic force of the two permanent magnets makes the first folding body 21 and the second folding body 22 are firmly fixed.
  • the sliding mechanism 4 may also be provided on both the first folding body 21 and the second folding body 22, so that when the first folding body 21 rotates relative to the second folding body 22, the flexible display screen 1 can be simultaneously relative to The first folding body 21 and the second folding body 22 slide, which improves folding efficiency.
  • FIG. 17 shows a schematic structural diagram of a folding screen used for an inner folding screen in an embodiment of the present application.
  • the folding screen includes two first folding bodies 21, which are rotatably connected by a rotating shaft 3, and each of the two first folding bodies 21 includes a fixing member 211 and a sliding member 212, which are fixed The member 211 and the sliding member 212 are slidably connected by the sliding mechanism 4.
  • the two sliding members 212 slide in a direction away from the rotation axis 3 at the same time, thereby forming a space inside the two first folding bodies 21, which is configured to accommodate the flexible display screen 1 inner folding area.
  • the two sliders 212 When the folding screen is switched from the folded state to the unfolded state, the two sliders 212 simultaneously slide in a direction close to the rotation axis 3, so that the two first folding bodies 21 and the rotation axis 3 jointly face the folding area of the flexible display screen 1 Provide support to form effective protection for the flexible display screen 1.
  • FIG. 18 is a schematic structural diagram of a folding screen used in a double-folding screen provided by an embodiment of the present application
  • FIG. 19 is a schematic structural diagram of another folding screen used in a double-folding screen provided in an embodiment of the present application.
  • the folding screen includes a first folding body 21, a second folding body 22, and a third folding body 23 that are rotatably connected by a rotating shaft 3 in turn, wherein the second folding body 22 is a fixed folding body, and the first folding body 21
  • Both the third folding body 23 and the third folding body 23 are sliding folding bodies, and the first folding body 21 and the third folding body 23 can be selectively folded by the two sides of the second folding body 22.
  • the sliding mechanism in the first folding body 21 and the third folding body 23 can drive the flexible display screen to slide synchronously, so as to adapt to the corresponding The change of the outer side length of the folded body.
  • the folding screen includes a second folding body 22, a first folding body 21, and a third folding body 23 that are rotatably connected by a rotating shaft 3, wherein the second folding body 22 is a fixed folding body, and the first folding body 21 Both the third folding body 23 and the third folding body 23 are sliding folding bodies.
  • the third folding body 23 is first folded relative to the first folding body 21, and then the first folding body 21 drives the third folding body 23 to synchronously fold relative to the second folding body 22, thereby completing the entire folding process.
  • the sliding mechanisms provided in the third folding body 23 and the first folding body 21 can The flexible display screen is driven to slide synchronously, so as to adapt to the change of the outer side length of the corresponding folding body.
  • the sliding mechanism 4 may also adopt a structure of rollers and rolling grooves to realize the sliding of the flexible display screen 1.
  • FIG. 20 is a schematic structural diagram of a folding screen with rollers and rolling grooves provided by an embodiment of the present application.
  • FIG. 21 is a schematic diagram of the structure of a roller and a rolling groove provided by an embodiment of the present application.
  • the sliding mechanism 4 of the embodiment of the present application includes a roller 51 and a rolling groove 52. There are two rollers 51, which are respectively located on both sides of the sliding member 212, and two rolling grooves 52 are also provided, which are respectively located on both sides of the fixed member 211, and the roller 51 and the rolling groove 52 are slidably connected.
  • the roller 51 slides in the rolling groove 52 so as to drive the sliding member 212 to slide relative to the fixed member 211.
  • the sliding mechanism 4 has a simple structure and is easy to implement, ensures the smoothness of sliding of the sliding member 212, and increases the service life of the folding screen.
  • the sliding mechanism 4 may also be a sliding block, a sliding groove structure, or other mechanisms that can realize linear sliding, and the embodiments of the present application will not list them one by one.
  • the sliding mechanism 4 can also implement the sliding of the flexible display screen 1 by providing a screen telescoping space 8 on the first folding body 21 and/or the second folding body 22.
  • FIG. 22 is a schematic structural diagram of a folding screen with screen expansion space provided by an embodiment of the present application.
  • the sliding mechanism 4 of the embodiment of the present application includes a screen telescopic space 8 provided at the edge of the first folding body 21.
  • the flexible display screen 1 can slide along the first folding body 21, and the protruding part of the flexible display screen 1 relative to the first folding body 21 slides into the screen In the telescopic space 8, thereby realizing effective support and protection of the flexible display screen.
  • the sliding mechanism 4 in the embodiment of the present application further includes an oblique guide mechanism, which is connected to the flexible display screen 1 and is configured to slide the end of the flexible display screen 1 into the screen telescopic space 8 in an oblique direction.
  • the screen retractable space 8 in the embodiment of the present application is a structure additionally provided at the outer end of the first folding body 21, it will occupy a certain space of the display device. Therefore, in actual production, the screen retractable space 8 can also be used as a device The antenna and rear camera space.
  • FIG. 23 is a schematic structural diagram of another folding screen with screen expansion and contraction space provided in an embodiment of the present application.
  • the screen retractable space 8 in the embodiment of the present application is a structure provided inside the first folding body 21, and the length of the first folding body 21 is not increased, so that it does not occupy additional space of the device.
  • the sliding mechanism of the embodiment of the present application further includes a winding mechanism, which is connected to the flexible display screen 1 and is configured to wind the end of the flexible display screen 1 into the screen telescopic space 8.
  • the flexible display screen slides along the first folding body 21, and its protruding part relative to the first folding body 21 is rolled
  • the mechanism is wound and hidden in the screen telescopic space 8.
  • the embodiment of the present application also proposes a foldable display terminal, which includes the above-mentioned foldable screen.
  • the foldable display terminal can be a foldable mobile phone, a foldable tablet computer, a foldable display and other devices.
  • the folding screen of the folding display terminal has a simple structure, easy realization, high strength, beautiful appearance, and long service life.

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Abstract

一种折叠屏及折叠显示终端。折叠屏包括：柔性显示屏(1)和设置为支撑柔性显示屏(1)的第一折叠体(21)和第二折叠体(22)；转动轴(3)，转动轴(3)设置于第一折叠体(21)和第二折叠体(22)之间，设置为使第一折叠体(21)和第二折叠体(22)相对转动；滑动机构(4)，滑动机构(4)设置于第一折叠体(21)和/或第二折叠体(22)上，设置为在第一折叠体(21)相对于第二折叠体(22)转动的情况下，使柔性显示屏(1)相对于第一折叠体(21)和第二折叠体(22)滑动。

Description

折叠屏及折叠显示终端
本申请要求在2019年12月19日提交中国专利局、申请号为201911319565.5的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示屏领域，例如涉及一种折叠屏及折叠显示终端。
背景技术
随着用户对大显示屏的终端产品的需求日益增加，终端产品的屏幕越来越大，但大屏幕的终端产品的尺寸较大，不利于用户的携带，折叠屏的出现很好的解决了上述问题。
折叠屏的主流折叠方式有屏幕内折和屏幕外折两种形式，不同的折叠方式有不同的技术实现难点。屏幕内折需要解决屏幕的弯折圆角，屏幕折叠后的变形问题。屏幕外折的主要难点在于，折叠状态和展平状态下折叠体的边长是不同的，所以大部分的折叠屏都是通过设计一个铰链式转轴来进行边长的切换，即保证外弧面屏的长度不变，通过改变内弧面结构的长度来实现折叠与展开的状态顺畅切换。但是，这种铰链式转轴结构比较复杂，寿命测试很难通过，而且铰链式转轴的开发周期太长，并且受铰链式转轴的转弯半径影响，折叠后，两个折叠半体之间缝隙很大。
此外，还有一种采用转动加滑动的方式来实现折叠屏外折的方案。如图1所示，该方案包括柔性显示屏1’、第一折叠体21’、第二折叠体22’、转动轴3’和滑动轴4’。第一折叠体21’和第二折叠体22’设置为对柔性显示屏1’进行支撑。第一折叠体21’和第二折叠体22’之间通过转动轴3’转动连接，以实现柔性显示屏1’的折叠与展开。同时，第一折叠体21’和第二折叠体22’分别通过滑动轴4’与转动轴3’连接，设置为实现第一折叠体21’相对于第二折叠体22’的滑动。但是，这种方案将转动轴和滑动轴合为一体设于折叠屏的折叠区，其结构较为复杂，实现难度较大，成本较高；而且这种转动轴与滑动轴一体式的方案，折叠屏展开状态下转动轴区域的缺口很大，影响产品的美观性，同时在展开状态，折叠体对柔性显示屏的支撑不足，产品的强度很难保证通过寿命测试。
发明内容
本申请提供一种折叠屏及折叠显示终端，以使折叠屏的结构简单、易于实 现、强度高、外形美观。
提供了一种折叠屏，包括：
柔性显示屏和设置为支撑所述柔性显示屏的第一折叠体和第二折叠体；
转动轴，所述转动轴设置于所述第一折叠体和所述第二折叠体之间，设置为使所述第一折叠体和第二折叠体相对转动；
滑动机构，所述滑动机构设置于所述第一折叠体和/或所述第二折叠体上，设置为在所述第一折叠体相对于所述第二折叠体转动的情况下，使所述柔性显示屏相对于所述第一折叠体和所述第二折叠体滑动。
还提供了一种折叠显示终端，包括上述的折叠屏。
附图说明
图1是一种折叠屏的主视图；
图2是本申请实施例提供的一种折叠屏的主视图；
图3是本申请实施例提供的一种折叠屏在展开状态的结构示意图；
图4是本申请实施例提供的一种折叠屏在折叠状态的结构示意图；
图5是本申请实施例提供的一种折叠屏在折叠过程中的结构示意图；
图6是本申请实施例提供的一种折叠屏在去除柔性显示屏后的结构示意图；
图7是本申请实施例提供的一种折叠屏的第一折叠体的结构示意图；
图8是本申请实施例提供的一种折叠屏的滑动机构的结构示意图；
图9是本申请实施例提供的一种折叠屏的滑动机构的分解示意图；
图10是本申请实施例提供的一种折叠屏的滑动轴的结构示意图；
图11是本申请实施例提供的一种折叠屏的滑动座的结构示意图；
图12是本申请实施例提供的一种折叠屏的转动轴的结构示意图；
图13是本申请实施例提供的一种折叠屏的转动轴的分解示意图；
图14是本申请实施例提供的一种折叠屏的凹齿件的结构示意图；
图15是本申请实施例提供的一种折叠屏的凸齿件的结构示意图；
图16是本申请实施例提供的一种带锁止机构的折叠屏的结构示意图；
图17是本申请实施例提供的一种折叠屏用于内折屏的结构示意图；
图18是本申请实施例提供的一种折叠屏用于双折屏的结构示意图；
图19是本申请实施例提供的另一种折叠屏用于双折屏的结构示意图；
图20是本申请实施例提供的一种具有滚轮和滚动槽的折叠屏的结构示意图；
图21是本申请实施例提供的一种滚轮和滚动槽的结构示意图；
图22是本申请实施例提供的一种具有屏幕伸缩空间的折叠屏的结构示意图；
图23是本申请实施例提供的另一种具有屏幕伸缩空间的折叠屏的结构示意图。
图中：
1’-柔性显示屏；21’-第一折叠体；22’-第二折叠体；3’-转动轴；4’-滑动轴；
1-柔性显示屏；21-第一折叠体；211-固定件；212-滑动件；22-第二折叠体；23-第三折叠体；3-转动轴；31-凸齿件；311-凸齿；32-凹齿件；321-凹齿；33-固定轴；34-固定套；35-顶紧弹簧；36-卡簧；4-滑动机构；41-滑动座；411-滑动槽；412-第二滑槽；42-滑动轴；421-第一滑槽；43-弹性件；44-第一推动杆；45-第二推动杆；46-第一铆钉轴；47-第二铆钉轴；48-卡槽；49-弹性卡合件；51-滚轮；52-滚动槽；6-可变形衬垫；7-锁止机构；8-屏幕伸缩空间。
具体实施方式
下面结合附图和实施例对本申请进行说明。
在本申请的描述中，除非另有规定和限定，术语“相连”、“连接”、“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。可以根据情况理解上述术语在本申请中的含义。
在本申请中，除非另有规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本申请的描述中，术语“上”、“下”、“左”“右”、等方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述和简化操作，而不 是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅仅用于在描述上加以区分，并没有特殊的含义。
图2是本申请实施例提供的一种折叠屏的主视图。图3是本申请实施例提供的一种折叠屏在展开状态的结构示意图；图4是本申请实施例提供的一种折叠屏在折叠状态的结构示意图。图5是本申请实施例提供的一种折叠屏在折叠过程中的结构示意图。图6是本申请实施例提供的一种折叠屏在去除柔性显示屏后的结构示意图。参考图2-图6，本申请实施例提出一种折叠屏，包括柔性显示屏1、第一折叠体21、第二折叠体22、转动轴3和滑动机构4。其中第一折叠体21和第二折叠体22设置为支撑和保护柔性显示屏1；转动轴3设置于第一折叠体21和第二折叠体22之间，设置为使第一折叠体21和第二折叠体22能够相对转动；滑动机构4设置于第一折叠体21上，设置为在第一折叠体21相对于第二折叠体22转动时，使柔性显示屏1相对于第一折叠体21滑动，以适应第一折叠体21和第二折叠体22在折叠状态与展开状态下外部边长的变化。
本申请实施例提供的折叠屏通过转动加滑动的方式实现，结构简单，折叠屏开合寿命长。由于本申请实施例的转动轴3和滑动机构4分离设置，简化了转动轴3，进而简化了折叠屏的整体结构，其制作更容易、成本更低；而且本申请实施例的滑动机构4设置于第一折叠体21上，而非设置在转动轴3上，从而减小了转动轴3处的空隙，能够对柔性显示屏1的折叠区域进行更好地支撑，提高折叠屏的结构强度；同时，本申请实施例的折叠屏在折叠状态下，能够使第一折叠体21和第二折叠体22尽可能贴合，大大减小了第一折叠体21和第二折叠体22之间的合缝，改善了折叠屏的美观性。
参阅图2-图6，本申请实施例中，第一折叠体21包括固定件211和滑动件212，其中固定件211与转动轴3固定连接，滑动件212与柔性显示屏1的非折叠区固定连接，滑动件212与固定件211之间通过滑动机构4连接。本申请实施例中，柔性显示屏1的一侧与第二折叠体22固定连接，而另一侧与滑动件212固定连接，因此在滑动件212通过滑动机构4相对于固定件211滑动时，能够带动柔性显示屏1同步滑动。如此设置，使得在展开折叠屏的过程中，固定件211带动柔性显示屏1转动的同时，滑动件212同步带动柔性显示屏1相对于固定件211向远离转动轴3的方向滑动，从而实现柔性显示屏1从折叠状态到展平状态的外部边长差值的兼容。
图7是本申请实施例提供的一种折叠屏的第一折叠体的结构示意图。图8是本申请实施例提供的一种折叠屏的滑动机构的结构示意图。图9是本申请实施例提供的一种折叠屏的滑动机构的分解示意图。图10是本申请实施例提供的 一种折叠屏的滑动轴的结构示意图。图11是本申请实施例提供的一种折叠屏的滑动座的结构示意图。参考图7-图11，本申请实施例中，滑动机构4包括滑动轴42和滑动座41，其中滑动轴42与滑动件212固定连接，滑动座41与固定件211固定连接。本申请实施例的滑动轴42呈片状结构，其相对的两个侧边可作为导轨，而滑动座41相对的两侧设置有滑动槽411，滑动轴42能通过导轨滑动安装于滑动座41的滑动槽411内。如此设置使得当滑动轴42相对于滑动座41滑动时，能带动滑动件212相对于固定件211滑动，其结构简单，滑动平稳。
由于相关技术的折叠屏从折叠状态到展开状态切换时，没有内力驱动，仅仅依靠用户手动开合可能造成使用不便，且无法保证折叠屏的稳定折叠。为解决上述问题，本申请实施例的滑动机构4还包括弹性机构，弹性机构被配置为拉动滑动轴42相对于滑动座41运动，进而带动滑动件212相对于固定件211滑动，从而使折叠屏具有展开的趋势。本申请实施例通过弹性机构的内在持续弹力，提供了展开折叠屏的内在驱动力，使折叠屏更容易被展开，提高了操作便捷性。
参考图8和图9，本申请实施例的弹性机构包括弹性件43及滑动配合的第一推动杆44和第二推动杆45，第一推动杆44的一端滑动连接于滑动轴42上，第二推动杆45的一端滑动连接于滑动座41上，弹性件43连接于第一推动杆44和第二推动杆45之间。滑动轴42上设有第一滑槽421，滑动座41上设有第二滑槽412，第一滑槽421和第二滑槽412均垂直于滑动轴42的滑动方向，第一推动杆44的一端通过第一铆钉轴46滑动连接于第一滑槽421内；第二推动杆45的一端通过第二铆钉轴47滑动连接于第二滑槽412内。本申请实施例在滑动轴42相对于滑动座41滑动的过程中，能使第一推动杆44和第二推动杆45相互靠近或远离，从而使弹性件43被压缩或拉长，因此通过赋予弹性件43内在推力或内在拉力，能为折叠屏的展开提供内在驱动力，使折叠屏更容易被展开。本申请实施例中弹性件43为压缩弹簧，能提供内在推力，使滑动轴42带动滑动件212向远离转动轴3的方向滑动，从而使折叠屏具有展开的趋势。
为使折叠屏能稳定的保持在折叠状态，本申请实施例的折叠屏还包括阻尼机构，阻尼机构设置于转动轴3和/或滑动机构4上，设置为对折叠屏的展开提供停顿阻尼力，且该停顿阻尼力大于弹性机构提供的弹性力。如此设置，使得折叠屏在受到外力的作用下能够被轻松展开，而在不受外力的情况下又能够稳定地保持在一角度的折叠状态。本申请实施例的阻尼机构包括设置于滑动机构4的滑动阻尼机构，设置为对滑动件212的滑动提供滑动停顿阻尼力，且该滑动停顿阻尼力大于弹性机构提供的弹性力。本申请实施例的滑动阻尼机构包括设置于滑动轴42和滑动座41其中之一上的至少一个卡槽48，和设置于滑动轴42和滑动座41其中另一上的至少一个弹性卡合件49，卡槽48和弹性卡合件49相 配合以提供限位阻尼。该弹性卡合件49可为弹性卡扣。示例性地，参考图10和图11，本申请实施例在滑动轴42上设置了多个卡槽48，在滑动座41上设置了一个弹性卡扣，卡槽48与弹性卡扣形状对应，通过不同卡槽48对弹性卡扣的限位阻尼作用，能够实现折叠屏在多个不同折叠位置停顿的效果。上述弹性卡扣和卡槽48配合的形式只是列举的一个实现方式，实际上本申请的带阻尼功能的滑动机构还可以有很多种实现形式，比如通过卡槽和弹簧滚珠结构等形式来实现，因此，只要是带阻尼功能的滑动机构，均在本申请的保护范围内。
图12是本申请实施例提供的一种折叠屏的转动轴的结构示意图。图13是本申请实施例提供的一种折叠屏的转动轴的分解示意图。图14是本申请实施例提供的一种折叠屏的凹齿件的结构示意图。图15是本申请实施例提供的一种折叠屏的凸齿件的结构示意图。参考图12-图15，本申请实施例提供的转动轴3安装在第一折叠体21与第二折叠体22之间，能使柔性显示屏1在180°的角度范围内开合。本申请实施例的阻尼机构还包括设于转动轴3的转动阻尼机构，设置为提供转动停顿阻尼力，使折叠屏能够稳定保持在一折叠角度，这里，转动停顿阻尼力同样要大于滑动机构4中弹性机构提供的弹性力。本申请实施例通过设置带阻尼的转动轴3，能够为折叠屏的开合提供很好的手感体验，同时便于用户将折叠屏折叠到任意角度进行固定，防止出现松动、晃动等现象。本申请实施例的转动阻尼机构与滑动阻尼机构作用相同，在实际生产中，二者只需设置一个即可。
参考图13-图15，本申请实施例中，转动阻尼机构包括凸齿件31和凹齿件32，凹齿件32安装于第一折叠体21和第二折叠体22的其中之一上，凸齿件31安装于第一折叠体21和第二折叠体22的其中另一上，凹齿件32和凸齿件31位于同一中心轴线上，凹齿件32上设置有多个凹齿321，凸齿件31上设置有多个凸齿311，凸齿件31和凹齿件32能相互啮合转动。当凸齿件31和凹齿件32相对转动时，通过凹齿321对凸齿311的限位作用，从而对凸齿件31的转动产生转动阻尼力。本申请实施例中，凹齿件32上的不同凹齿321能够实现凸齿件31在不同角度的止位。本申请实施例中凹齿件32上设有八个凹齿321，凸齿件31上设有两个凸齿311，以达到简化零件结构，提高折叠稳固性的作用。在其它实施例中，也可以根据需要将凹齿321和凸齿311设置为其它数量，并不以本申请实施例为限。
如图13所示，本申请实施例的转动轴3还包括固定轴33、固定套34、顶紧弹簧35和卡簧36，其中固定套34安装于第一折叠体21或第二折叠体22中，凹齿件32套接于固定套34内，固定轴33依次穿设凸齿件31、凹齿件32和固定套34，顶紧弹簧35套设于固定轴33上，并抵接于固定套34与凹齿件32之间，固定轴33的一端与凸齿件31卡接，固定轴33的另一端通过卡簧36与固 定套34卡接。本申请实施例通过顶紧弹簧35持续将凹齿件32与凸齿件31顶紧连接，有效保证了该转动阻尼机构的使用可靠性，防止凹齿件32与凸齿件31脱离而导致转动轴3失效。
如图3-图5所示，本申请实施例的折叠屏还包括可变形衬垫6，可变形衬垫6设于柔性显示屏1的折叠区(即转动轴3附近)，可变形衬垫6设置为对柔性显示屏1的折叠区进行支撑和保护。本申请实施例中可变形衬垫6为硅胶垫，硅胶垫具有较好的柔韧性和较好的耐高温、耐磨性能，在折叠屏展开过程中，硅胶垫能够通过自身弹性变形，填充滑动件212与转动轴3之间的空隙，以便对柔性显示屏1形成有效的支撑和防护，进而提高折叠屏的结构强度；同时改善折叠屏的美观性，提高产品使用寿命。
图16是本申请实施例提供的一种带锁止机构的折叠屏的结构示意图。参考图16，本申请实施例的折叠屏还包括锁止机构7，锁止机构7设置于第一折叠体21与第二折叠体22之间，设置为将柔性显示屏1锁定在折叠状态。本申请实施例通过设置锁止机构7，增加了折叠屏在折叠状态下的稳定性，避免了折叠屏出现折叠不牢松动的现象，减少了折叠屏所受的持续展开力，提高了折叠屏的使用寿命。本申请实施例的锁止机构7可以为卡扣结构、永磁铁结构或电磁铁结构。本申请实施例中锁止机构7包括两块永磁铁，分别设置在第一折叠体21和第二折叠体22相对侧的末端位置，通过上述两块永磁铁的磁力作用，使第一折叠体21和第二折叠体22牢牢固定。
本申请实施例也可以在第一折叠体21和第二折叠体22上均设置滑动机构4，从而在第一折叠体21相对于第二折叠体22转动时，柔性显示屏1能同时相对于第一折叠体21和第二折叠体22发生滑动，提高折叠效率。
本申请实施例图2-图16所示的结构均是以单折屏、外折叠形式的折叠屏为例进行说明的，实际上，本申请实施例的上述结构也可用于双折屏或多折屏的设备中；同样，上述结构既能用于外折屏(即折叠状态下，柔性显示屏1位于折叠体的外侧)的形式、也可用于内折屏(即折叠状态下，柔性显示屏1位于折叠体的内侧)的形式。示例性地，图17示出本申请实施例中折叠屏用于内折屏的结构示意图。参考图17，该折叠屏包括两个第一折叠体21，两个第一折叠体21之间通过转动轴3转动连接，两个第一折叠体21均包括固定件211和滑动件212，固定件211和滑动件212之间通过滑动机构4滑动连接。当该折叠屏由展开状态向折叠状态切换时，两个滑动件212同时向远离转动轴3的方向滑动，从而在两个第一折叠体21的内部会形成一个空间，设置为容纳柔性显示屏1的内折叠区域。当该折叠屏由折叠状态向展开状态切换时，两个滑动件212同时向靠近转动轴3的方向滑动，从而在两个第一折叠体21及转动轴3共同对柔 性显示屏1的折叠区域进行支撑，对柔性显示屏1形成有效保护。
图18是本申请实施例提供的一种折叠屏用于双折屏的结构示意图；图19是本申请实施例提供的另一种折叠屏用于双折屏的结构示意图。参考图18，该折叠屏包括依次通过转动轴3转动连接的第一折叠体21、第二折叠体22和第三折叠体23，其中第二折叠体22为固定折叠体，第一折叠体21和第三折叠体23均为滑动折叠体，第一折叠体21和第三折叠体23可选择性地由第二折叠体22的两侧实现折叠。在第一折叠体21和第三折叠体23相对第二折叠体22转动的过程中，第一折叠体21和第三折叠体23内的滑动机构能带动柔性显示屏同步发生滑动，从而适应相应折叠体外部边长的变化。
参考图19，该折叠屏包括依次通过转动轴3转动连接的第二折叠体22、第一折叠体21和第三折叠体23，其中第二折叠体22为固定折叠体，第一折叠体21和第三折叠体23均为滑动折叠体。折叠时，第三折叠体23先相对于第一折叠体21进行折叠，然后由第一折叠体21带动第三折叠体23同步相对于第二折叠体22进行折叠，从而完成整个折叠过程。在上述第三折叠体23相对于第一折叠体21转动或第一折叠体21相对于第二折叠体22转动过程中，设于第三折叠体23和第一折叠体21内的滑动机构能够带动柔性显示屏同步发生滑动，从而适应相应折叠体外部边长的变化。
在本申请另一个可选实施例中，滑动机构4也可以采用滚轮和滚动槽的结构来实现柔性显示屏1的滑动。图20是本申请实施例提供的一种具有滚轮和滚动槽的折叠屏的结构示意图。图21是本申请实施例提供的一种滚轮和滚动槽的结构示意图。参考图20和图21，本申请实施例的滑动机构4包括滚轮51和滚动槽52。其中滚轮51设有两个，分别位于滑动件212的两侧位置，滚动槽52也设有两个，分别位于固定件211的两侧位置，滚轮51与滚动槽52滑动连接。本申请实施例通过滚轮51在滚动槽52内滑动，从而能带动滑动件212相对于固定件211发生滑动。该滑动机构4结构简单，易于实现，保证了滑动件212滑动的平稳性，增加了折叠屏的使用寿命。在其它情况下，该滑动机构4还可以为滑动配合的滑块、滑槽结构，或其它能实现直线滑动的机构，本申请实施例不再一一列举。
在本申请另一个可选实施例中，滑动机构4也可以通过在第一折叠体21和/或第二折叠体22上设置屏幕伸缩空间8来实现柔性显示屏1的滑动。图22是本申请实施例提供的一种具有屏幕伸缩空间的折叠屏的结构示意图。参考图22，本申请实施例的滑动机构4包括设于第一折叠体21边缘的屏幕伸缩空间8。在第一折叠体21相对于第二折叠体22转动的过程中，柔性显示屏1能沿第一折叠体21发生滑动，柔性显示屏1相对第一折叠体21伸出的部分，滑动进入屏 幕伸缩空间8内，从而实现对柔性显示屏的有效支撑和保护。
本申请实施例的滑动机构4还包括斜向导向机构，斜向导向机构与柔性显示屏1连接，设置为使柔性显示屏1的端部沿倾斜方向滑入屏幕伸缩空间8内。此外，由于本申请实施例的屏幕伸缩空间8是额外设于第一折叠体21外端的结构，会占用到显示设备的一定空间，因此在实际生产时，也可以将该屏幕伸缩空间8作为设备的天线及后摄空间。
在本申请另一个可选实施例中，滑动机构4也可以不设置斜向导向机构，而设置卷绕机构。图23是本申请实施例中提供的另一种具有屏幕伸缩空间的折叠屏的结构示意图。参考图23，本申请实施例的屏幕伸缩空间8是设于第一折叠体21内部的结构，不会增加第一折叠体21的长度，从而不会额外占用设备的空间。同时，本申请实施例的滑动机构还包括卷绕机构，卷绕机构与柔性显示屏1连接，设置为将柔性显示屏1的端部卷绕进屏幕伸缩空间8内。本申请实施例在第一折叠体21相对于第二折叠体22转动的过程中，柔性显示屏沿第一折叠体21发生滑动，其相对于第一折叠体21伸出的部分，通过卷绕机构卷绕而隐藏于屏幕伸缩空间8内。本申请实施例既能实现对柔性显示屏的支撑和保护，又能有效节约显示设备的空间。
本申请实施例还提出一种折叠显示终端，该折叠显示终端包括上述折叠屏。该折叠显示终端可以为折叠手机、折叠平板电脑、折叠显示器等设备。该折叠显示终端的折叠屏结构简单、易于实现、强度高、外形美观、使用寿命较长。

Claims (12)

  1. 一种折叠屏，包括：
    柔性显示屏(1)和设置为支撑所述柔性显示屏(1)的第一折叠体(21)和第二折叠体(22)；
    转动轴(3)，所述转动轴(3)设置于所述第一折叠体(21)和所述第二折叠体(22)之间，设置为使所述第一折叠体(21)和第二折叠体(22)相对转动；
    滑动机构(4)，所述滑动机构(4)设置于所述第一折叠体(21)和所述第二折叠体(22)中的至少之一上，设置为在所述第一折叠体(21)相对于所述第二折叠体(22)转动的情况下，使所述柔性显示屏(1)相对于所述第一折叠体(21)和所述第二折叠体(22)滑动。
  2. 根据权利要求1所述的折叠屏，其中，所述第一折叠体(21)包括固定件(211)和滑动件(212)，所述固定件(211)与所述转动轴(3)连接，所述滑动件(212)与所述柔性显示屏(1)的非折叠区连接，所述滑动件(212)与所述固定件(211)之间通过所述滑动机构(4)连接。
  3. 根据权利要求2所述的折叠屏，其中，所述滑动机构(4)包括滑动轴(42)和滑动座(41)，所述滑动轴(42)设置于所述滑动件(212)上，所述滑动座(41)设置于所述固定件(211)上。
  4. 根据权利要求2所述的折叠屏，其中，所述滑动机构(4)包括滚轮(51)和滚动槽(52)，所述滚轮(51)设置于所述滑动件(212)上，所述滚动槽(52)设置于所述固定件(211)上。
  5. 根据权利要求1所述的折叠屏，其中，所述滑动机构(4)包括设置于所述第一折叠体(21)和所述第二折叠体(22)中的至少之一的边缘的屏幕伸缩空间(8)。
  6. 根据权利要求5所述的折叠屏，其中，所述滑动机构(4)还包括斜向导向机构，所述斜向导向机构与所述柔性显示屏(1)连接，设置为使所述柔性显示屏(1)的端部倾斜滑入所述屏幕伸缩空间(8)内。
  7. 根据权利要求5所述的折叠屏，其中，所述滑动机构(4)还包括卷绕机构，所述卷绕机构与所述柔性显示屏(1)连接，设置为将所述柔性显示屏(1)的端部卷绕进所述屏幕伸缩空间(8)内。
  8. 根据权利要求3所述的折叠屏，其中，所述滑动机构(4)还包括弹性机构，所述弹性机构设置为拉动所述滑动轴(42)相对于所述滑动座(41)运动，以将所述柔性显示屏(1)拉平。
  9. 根据权利要求8所述的折叠屏，还包括阻尼机构，所述阻尼机构设置于所述转动轴(3)和所述滑动机构(4)中的至少之一上，所述阻尼机构设置为对所述折叠屏的展开提供停顿阻尼力，所述停顿阻尼力大于所述弹性机构提供的弹性力。
  10. 根据权利要求1-9任一项所述的折叠屏，还包括可变形衬垫(6)，所述可变形衬垫(6)设置于所述柔性显示屏(1)的折叠区，所述可变形衬垫(6)设置为对所述柔性显示屏(1)的折叠区进行支撑和保护。
  11. 根据权利要求1-9任一项所述的折叠屏，还包括锁止机构(7)，所述锁止机构(7)设置于所述第一折叠体(21)与所述第二折叠体(22)之间，设置为将所述柔性显示屏(1)锁定在折叠状态。
  12. 一种折叠显示终端，包括权利要求1-11任一项所述的折叠屏。
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CN113645331A (zh) * 2021-08-12 2021-11-12 武汉天马微电子有限公司 一种可折叠显示装置
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