Folding device, flexible display and mobile terminal

Abstract

The present invention relates to the field of display technology, and in particular to a folding device, a flexible display and a mobile terminal, comprising a folding support mechanism and a support assembly connected to the folding support mechanism; the folding support mechanism comprises a folding assembly, a bevel gear transmission assembly and a rocking piece connected to the bevel gear transmission assembly, the folding assembly is transmission-connected to the bevel gear transmission assembly, and the rocking piece is slidably connected to the support assembly; the folding assembly drives the rocking piece to swing through the bevel gear transmission assembly, and the rocking piece swings and drives the support assembly to move in the radial direction of the folding axis, thereby reducing the stretching and extrusion of the flexible display panel during the folding process and protecting the flexible display panel from damage.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a folding device, a flexible display and a mobile terminal. Background Art

[0002] OLED has the characteristics of self-luminescence, low power consumption, flexibility and foldability. With the growing demand for mobile office functions on mobile phones and the pursuit of larger screen display ranges, combined with the portable use of mobile phones, foldable phones have become a new development direction in the mobile terminal field.

[0003] Currently, when the folding screen of a foldable mobile phone is folded and opened, the flexible display panel is squeezed and stretched at the folding point. The repeated stretching and squeezing of the flexible display panel affects the service life of the foldable mobile phone. Summary of the invention

[0004] An object of the present invention is to provide a folding device, a flexible display and a mobile terminal, which can solve the above-mentioned problems.

[0005] The embodiment of the present invention is achieved as follows:

[0006] A folding device comprises a folding support mechanism and a support assembly connected to the folding support mechanism;

[0007] The folding support mechanism comprises a folding assembly, a bevel gear transmission assembly and a rocking member connected to the bevel gear transmission assembly, the folding assembly is transmission-connected to the bevel gear transmission assembly, and the rocking member is slidably connected to the support assembly;

[0008] The folding assembly drives the rocking member to swing through the bevel gear transmission assembly, and the rocking member swings and drives the supporting assembly to move in the radial direction of the folding axis.

[0009] Furthermore, in an embodiment of the present invention, the support assembly is provided with a curved slide groove, and the rocking member is slidably connected to the curved slide groove.

[0010] Furthermore, in an embodiment of the present invention, a sliding member is slidably disposed in the curved slide groove, and the sliding member is rotatably connected to the rocking member.

[0011] Furthermore, in an embodiment of the present invention, the support assembly is provided with a guide rail groove in the radial direction of the folding axis, and the folding support mechanism is provided with a guide rail that slidably cooperates with the guide rail groove.

[0012] Further, in one embodiment of the present invention, the support assembly comprises a first folding plate and a second folding plate respectively slidably connected to the rocking member;

[0013] The first folding plate and the second folding plate are respectively slidably connected to the rocking member.

[0014] Furthermore, in an embodiment of the present invention, the first folding plate and the second folding plate are respectively provided with a supporting layer, and the supporting layer is used to connect the flexible display panel.

[0015] Further, in one embodiment of the present invention, the rocking member comprises a first rocking arm and a second rocking arm respectively connected to the bevel gear transmission assembly;

[0016] The first rocker is slidably connected to the first folding plate, and the second rocker is slidably connected to the second folding plate.

[0017] Further, in one embodiment of the present invention, the folding assembly comprises a first rotating member and a second rotating member which are relatively rotatably connected;

[0018] Wherein, during the folding or opening process of the folding device, the first rotating member drives the first rocking arm to swing via the bevel gear transmission assembly, and the second rotating member drives the second rocking arm to swing via the bevel gear transmission assembly.

[0019] Furthermore, in an embodiment of the present invention, the folding device comprises at least one folding support mechanism.

[0020] A flexible display, comprising a flexible display panel and the above-mentioned folding device;

[0021] The supporting component is connected to the flexible display panel, and the folding supporting mechanism folds or unfolds the flexible display panel through the supporting component.

[0022] A mobile terminal comprises the above-mentioned flexible display.

[0023] The beneficial effects of the embodiments of the present invention are:

[0024] The folding support mechanism includes a folding component, the folding component is connected to the bevel gear transmission component, the bevel gear transmission component is connected to the swing member, and the swing member is slidably connected to the support component; during the folding process of the folding component, the bevel gear transmission component drives the swing member to swing, and the swing member drives the support component to slide relative to the folding component. After the flexible display panel is connected to the support component, during the folding process, the displacement of the support component reduces the stretching and extrusion of the folding part of the flexible display panel, protects the flexible display panel from damage, and prolongs the service life of the flexible display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a schematic diagram of a flexible display according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of a folding device according to an embodiment of the present invention;

[0028] Figure 3 For the embodiment of the present invention Figure 2 A schematic diagram of a local enlarged structure;

[0029] Figure 4 This is a schematic diagram of the partial structure after folding of an embodiment of the present invention;

[0030] Figure 5 Schematic diagram of the first rocker structure of an embodiment of the present invention.

[0031] icon:

[0032] 100-folding support mechanism; 110-folding assembly; 111-connecting member; 112-first rotating member; 113-second rotating member; 114-first guide rail; 115-second guide rail; 116-folding gear A; 117-folding gear B;

[0033] 120-bevel gear transmission assembly; 121-transmission gear A; 122-transmission gear B; 123-bevel gear A; 124-bevel gear B;

[0034] 130-swinging member; 131-first rocking arm; 132-second rocking arm; 133-sliding member A; 134-sliding member B;

[0035] 200-support assembly; 210-first folding plate; 211-first curved slide groove; 212-first guide rail groove; 220-second folding plate; 221-second curved slide groove; 222-second guide rail groove;

[0036] 300 - first supporting layer; 400 - second supporting layer; 500 - flexible display panel. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0041] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0042] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Embodiment 1:

[0044] This embodiment provides a folding device, a flexible display and a mobile terminal. Figure 1-5 As shown, the mobile terminal includes a flexible display, the flexible display includes a flexible display panel 500 and a folding device, the folding device includes a folding support assembly 200, a folding assembly 110, a bevel gear transmission assembly 120 and a rocking member, the support assembly 200 includes a first folding plate 210 and a second folding plate 220, the support layer includes a first support layer 300 and a second support layer 400, the first folding plate 210 is connected to the first support layer 300, the second folding plate 220 is connected to the second support layer 400, and the flexible display panel 500 is respectively connected to the first support layer 300 and the second support layer 400.

[0045] The folding component 110 is transmission-connected to the bevel gear transmission component 120, and the bevel gear transmission component 120 is connected to the rocking member 130, and the rocking member 130 is slidingly connected to the first folding plate 210 and the second folding plate 220. During the folding process of the folding component 110, the rocking member 130 is driven to swing by the bevel gear transmission component 120. During the swinging process of the rocking member 130, the first folding plate 210 and the second folding plate 220 are driven to slide relative to the folding component 110, that is, the first folding plate 210 and the second folding plate 220 move in the radial direction of the folding axis, and the distance between the first folding plate 210 and the second folding plate 220 and the folding component 110 is adjusted, so as to reduce the stretching and extrusion of the flexible display panel 500 when folding and opening, protect the flexible display panel 500 from damage, and extend the service life of the flexible display panel 500.

[0046] refer to Figure 2 and Figure 3 As shown, Figure 3 for Figure 2 The partially enlarged schematic diagram shows that the folding support mechanism 100 includes a folding assembly 110, a bevel gear transmission assembly 120, and a rocking member. The folding assembly 110 includes a connecting member 111, a first rotating member 112, and a second rotating member 113. The first rotating member 112 is provided with a first guide rail 114, and the second rotating member 113 is provided with a second guide rail 115. The first rotating member 112 and the second rotating member 113 are rotatably connected to the connecting member 111, respectively, and the connecting member 111 makes the positional relationship between the first rotating member 112 and the second rotating member 113 relatively fixed. The first rotating member 112 is rotatably provided with a rotating shaft A, and the first rotating member 112 is connected to the folding gear A116 via the rotating shaft A; the second rotating member 113 is rotatably provided with a rotating shaft B, and the second rotating member 113 is connected to the bevel gear B124 via the rotating shaft B, and the folding gear A116 and the folding gear B117 are meshed with each other. During the relative rotation, folding or opening of the first rotating member 112 and the second rotating member 113, the folding gear A116 and the folding gear B117 are meshed for transmission.

[0047] The bevel gear transmission assembly 120 includes a transmission gear A121, a transmission gear B122, a bevel gear A123 and a bevel gear B124. The transmission gear A121 and the transmission gear B122 are both bevel gear structures. The transmission gear A121 is connected to the rotating shaft A, the transmission gear B122 is connected to the rotating shaft B, the bevel gear A123 is meshed and connected to the transmission gear A121, and the bevel gear B124 is meshed and connected to the transmission gear B122. The support assembly 200 is provided with a curved slide groove. The support assembly 200 includes a first folding plate 210 and a second folding plate 220. The curved slide groove includes a first curved slide groove 211 and a second curved slide groove 221. The first folding plate 210 is provided with a first curved slide groove 211 and a first guide groove 212. The second folding plate 220 is provided with a second curved slide groove 221 and a second guide groove 222. The first guide groove 212 and the second guide groove 222 extend in the radial direction of the folding axis respectively.

[0048] The folding component 110 is located between the first folding plate 210 and the second folding plate 220. The first folding plate 210 is provided with a plurality of first guide rail grooves 212 on the side facing the folding component 110. The first rotating member 112 is provided with a plurality of first guide rails 114 corresponding to the first guide rail grooves 212. The first guide rails 114 are slidably engaged with the first guide rail grooves 212. The second folding plate is provided with a plurality of second guide rail grooves 222 on the side facing the folding component 110. The second rotating member 113 is provided with a plurality of second guide rails 115 corresponding to the second guide rail grooves 222. The second guide rails 115 are slidably engaged with the second guide rail grooves 222.

[0049] The rocking member includes a first rocking arm 131 and a second rocking arm 132. One end of the first rocking arm 131 is connected to a sliding member A133, and the other end of the first rocking arm 131 is fixedly connected to a bevel gear A123. The first rocking arm 131 extends in the radial direction of the bevel gear A123. One end of the second rocking arm 132 is connected to a sliding member B134, and the other end of the second rocking arm 132 is connected to a bevel gear B124. The second rocking arm 132 extends in the radial direction of the bevel gear B124. The sliding member A133 is slidably disposed in the first curved slide groove 211, and the sliding member B134 is slidably disposed in the second curved slide groove 221.

[0050] refer to Figure 2-4 As shown, combined Figure 1The flexible display has an outward folding structure. During the folding process of the device, the first rotating member 112 and the second rotating member 113 rotate relative to each other, and the folding gear A116 and the folding gear B117 are meshed and transmitted. The folding gear A116 rotates the transmission gear A121 through the rotating shaft A, and the transmission gear A121 drives the bevel gear A123 to rotate, and the bevel gear A123 drives the first rocker 131 to rotate around the center of the bevel gear A123; the folding gear B117 rotates the transmission gear B122 through the rotating shaft B, and the transmission gear B122 drives the bevel gear B124 to rotate, and the bevel gear B124 drives the second rocker 132 to rotate around the center of the bevel gear B124. The first rocker 131 drives the sliding member A133 to slide in the first curved slide groove 211, and the second rocker 132 drives the sliding member B134 to slide in the second curved slide groove 221.

[0051] refer to Figure 3 and Figure 4 As shown, the distances between the two ends of the first rocker arm 131 sliding in the first curved groove 211 and the center of the bevel gear A123 are unequal, and the distances between the two ends of the second rocker arm 132 sliding in the second curved groove 221 and the center of the bevel gear B124 are unequal. Both the first curved groove 211 and the second curved groove 221 are arc grooves. When the folding device is in the open state, the position of the first rocker 131 in the first curved groove 211 is called the open end. When the folding device is in the folded state, the position of the first rocker 131 in the first curved groove 211 is called the folded end. The distance between the open end and the center of the bevel gear A123 is less than the distance between the folded end and the center of the bevel gear A123. When the flexible display panel 500 is in the open state and the folded state, the first rocker 131 slides from the open end to the folded end. During the rotation of the first rocker 131, the first folding plate 210 is driven to move toward the first rotating member 112. When the flexible display panel 500 is in the folded state and the open state, the first rocker 131 rotates in the opposite direction and drives the first folding plate 210 to move away from the first rotating member 112, thereby reducing the tension of the flexible display panel 500 at the folding position. At the same time, it has a damping feeling to ensure stability during the folding and opening process. The second rocker 132 rotates synchronously with the first rocker 131, and the principle is the same, which will not be repeated here. When the first folding plate 210 and the second folding plate 220 are folded or opened relative to each other, the first guide rail 114 slides in the first guide rail groove 212, and the second guide rail 115 slides in the second guide rail groove 222, preventing the first folding plate 210 and the second folding plate 220 from moving in the axial direction of the folding axis, thereby ensuring stability during the folding process.

[0052] In this embodiment, a plurality of folding support mechanisms 100 may be provided, and the first rotating members 112 and the second rotating members 113 in the plurality of folding support mechanisms 100 may be connected in sequence, or the plurality of folding support mechanisms 100 may share one first rotating member 112 and one second rotating member 113 .

[0053] refer to Figure 2 As shown, in this embodiment, two folding support mechanisms 100 are provided, and are respectively located at both ends of the folding axis of the folding device, and the two first rotating members 112 and the two second rotating members 113 in the two folding support mechanisms 100 are integrally connected. The first folding plate 210 and the second folding plate 220 are both rectangular structures, and the corner edges of the first folding plate 210 and the corner edges of the second folding plate 220 are respectively provided with rounded corners. The first rocker 131 and the second rocker 132 have the same structure and are both sheet-shaped.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A folding device, characterized in that: It comprises a folding support mechanism (100) and a support assembly (200) connected to the folding support mechanism (100); The folding support mechanism (100) comprises a folding assembly (110), a bevel gear transmission assembly (120), and a swing member (130) connected to the bevel gear transmission assembly (120); the folding assembly (110) is transmission-connected to the bevel gear transmission assembly (120), and the swing member (130) is slidably connected to the support assembly (200); The folding assembly (110) drives the swinging member (130) to swing through the bevel gear transmission assembly (120); the swinging member (130) swings and drives the supporting assembly (200) to move in the radial direction of the folding axis.

2. The folding device according to claim 1, characterized in that: The support assembly (200) is provided with a curved sliding groove, and the rocking member (130) is slidably connected to the curved sliding groove.

3. The folding device according to claim 2, characterized in that: A sliding member is slidably arranged in the curved sliding groove, and the sliding member can be rotatably connected to the rocking member (130).

4. The folding device according to claim 1, characterized in that: The support assembly (200) is provided with a guide rail groove in the radial direction of the folding axis, and the folding support mechanism (100) is provided with a guide rail that is slidably matched with the guide rail groove.

5. The folding device according to claim 1, characterized in that: The support assembly (200) comprises a first folding plate (210) and a second folding plate (220) which are respectively slidably connected to the swing member (130); The first folding plate (210) and the second folding plate (220) are respectively slidably connected to the rocking member (130).

6. The folding device according to claim 5, characterized in that: The first folding plate (210) and the second folding plate (220) are respectively provided with a supporting layer, and the supporting layer is used to connect the flexible display panel (500).

7. The folding device according to claim 5, characterized in that: The rocking member (130) comprises a first rocking arm (131) and a second rocking arm (132) respectively connected to the bevel gear transmission assembly (120); The first rocker (131) is slidably connected to the first folding plate (210), and the second rocker (132) is slidably connected to the second folding plate (220).

8. The folding device according to claim 7, characterized in that: The folding assembly (110) comprises a first rotating member (112) and a second rotating member (113) which are connected to rotate relative to each other; Wherein, during the folding or opening process of the folding device, the first rotating member (112) drives the first rocking arm (131) to swing via the bevel gear transmission assembly (120), and the second rotating member (113) drives the second rocking arm (132) to swing via the bevel gear transmission assembly (120).

9. The folding device according to claim 1, characterized in that: The folding device comprises at least one folding support mechanism (100).

10. A flexible display, characterized in that: Comprising a flexible display panel (500) and a folding device as claimed in any one of claims 1 to 9; The support component (200) is connected to the flexible display panel (500), and the folding support mechanism (100) enables the flexible display panel (500) to be folded or unfolded through the support component (200).

11. A mobile terminal, characterized in that: Including the flexible display as claimed in claim 10.

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