WO2022042534A1 - Dispositif électronique - Google Patents

Dispositif électronique Download PDF

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Publication number
WO2022042534A1
WO2022042534A1 PCT/CN2021/114271 CN2021114271W WO2022042534A1 WO 2022042534 A1 WO2022042534 A1 WO 2022042534A1 CN 2021114271 W CN2021114271 W CN 2021114271W WO 2022042534 A1 WO2022042534 A1 WO 2022042534A1
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WO
WIPO (PCT)
Prior art keywords
flexible screen
elastic
state
support plate
electronic device
Prior art date
Application number
PCT/CN2021/114271
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English (en)
Chinese (zh)
Inventor
程红朝
Original Assignee
维沃移动通信有限公司
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Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2022042534A1 publication Critical patent/WO2022042534A1/fr

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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

Definitions

  • the present application relates to the technical field of electronic products, in particular to an electronic device.
  • the related art proposes a folding screen.
  • the folding screen is unfolded, and when a large-screen display is not required, the folding screen can be folded, thereby solving the above problems.
  • the screen at the folding position is prone to problems such as delamination due to local redundancy, which leads to damage to the folding screen.
  • the embodiment of the present application provides an electronic device to solve the problem of damage to the folding screen due to a delamination phenomenon at the folding position during the folding process of the folding screen.
  • an embodiment of the present application provides an electronic device, including: a flexible screen, a driving mechanism, and an elastic connector;
  • the driving mechanism includes a driving component and a follower, and the follower is located at the edge of the flexible screen The non-display end face side; the first end of the elastic connecting piece is connected with the driven piece, and the second end of the elastic connecting piece is connected with the flexible screen; wherein, when the flexible screen changes from the unfolded state In the process of reaching the folded state, the driving component drives the driven member to move in a direction away from the flexible screen, and the elastic connecting member is transformed from a compressed state to a stretched state; when the flexible screen is transformed from the folded state In the process of reaching the unfolded state, the driving component drives the driven member to move in a direction close to the flexible screen, and the elastic connecting member changes from a tension state to a compression state.
  • the driven member is driven to move away from the flexible screen by the driving component, so that the elastic connecting member is transformed from a compressed state to a stretched state, that is, when the flexible screen is in the folded state, the elastic The connecting piece is in a stretched state, so that under the pulling force of the elastic connecting piece, the redundant part of the folded position of the flexible screen will be stretched, which effectively alleviates the There is a layering phenomenon in the folding position, which leads to the problem of damage to the folding screen.
  • FIG. 1 is a cross-sectional view of the internal structure of the flexible screen in a folded state in an embodiment of the present application
  • Fig. 2 is a partial enlarged view of the folded position in Fig. 1;
  • Fig. 3 is a partial enlarged view of the connection between the follower and the flexible screen in Fig. 1;
  • FIG. 4 is a cross-sectional view of the internal structure of the flexible screen when the flexible screen is in an unfolded state in an embodiment of the present application;
  • Fig. 5 is a partial enlarged view of the folded position in Fig. 4;
  • Fig. 6 is a partial enlarged view of the connection between the follower and the flexible screen in Fig. 4;
  • FIG. 7 is a schematic structural diagram of a driving mechanism when the flexible screen is in an unfolded state in an embodiment of the present application
  • FIG. 8 is a schematic structural diagram of a driving mechanism when the flexible screen is in a folded state in an embodiment of the present application
  • FIG. 9 is a schematic structural diagram of the connection between the first casing and the second casing in the embodiment of the present application.
  • Fig. 10 is one of the partial enlarged views of the connection between the first casing and the second casing in Fig. 9;
  • Fig. 11 is the second partial enlarged view of the connection between the first casing and the second casing in Fig. 9;
  • FIG. 12 is a schematic structural diagram of the connection between the flexible screen, the first rigid support plate, the flexible support plate and the second rigid support plate;
  • 13 is a schematic structural diagram of the connection between the first rigid support plate, the flexible support plate and the second rigid support plate;
  • FIG. 14 is a schematic structural diagram of an electronic device when the flexible screen is in an unfolded state in an embodiment of the present application
  • FIG. 15 is a schematic structural diagram of an electronic device when the flexible screen is in a folded state according to an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between “first”, “second”, etc.
  • the objects are usually of one type, and the number of objects is not limited.
  • the first object may be one or more than one.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • an electronic device provided in an embodiment of the present application includes: a flexible screen 100, a driving mechanism 200, and an elastic connector 300;
  • the driving mechanism 200 includes a driving component and a follower 201, and the The follower 201 is located on the non-display end face side of the flexible screen 100;
  • the first end of the elastic connector 300 is connected to the follower 201, and the second end of the elastic connector 300 is connected to the flexible
  • the flexible screen 100 is connected; wherein, during the process of the flexible screen 100 changing from the unfolded state to the folded state, the driving component drives the follower 201 to move in a direction away from the flexible screen 100, and the elastic connecting member 300 is transformed from a compressed state to a stretched state; when the flexible screen 100 is transformed from a folded state to an unfolded state, the driving component drives the follower 201 to move in a direction close to the flexible screen 100, so
  • the elastic connector 300 is transformed from a tension state to a compression state.
  • the above-mentioned flexible screen 100 includes a display end surface and a non-display end surface, wherein the non-display end surface may be the end surface opposite to the display end surface, and the display end surface is used for displaying data, such as displaying images, displaying text, and the like.
  • the above-mentioned driven member 201 can also be a connecting member, which is used to connect the first end of the elastic connecting member 300 with the motion output end of the driving assembly, so as to make the driving assembly move and drive the elastic connecting member 300 to move.
  • the telescopic movement thereby enabling the elastic connector 300 to change between the telescopic state and the stretched state.
  • the above-mentioned driving assembly can be connected with the flexible screen 100 through a transmission member, so that the driving assembly can move under the driving of the flexible screen 100.
  • the transmission member can transmit the rotational motion of the flexible screen 100 to the driving component, and then the driving component converts the received rotational motion into linear motion, thereby driving the driven member 201 moves toward or away from the flexible screen 100, thereby achieving the technical effect of enabling the elastic connecting member 300 to change between a telescopic state and a stretched state.
  • the above-mentioned transmission member can also convert the received rotational motion of the flexible screen 100 into other forms of motion, and then transmit it to the driving assembly.
  • the above-mentioned drive assembly can also independently drive the driven member 201 to move.
  • the above-mentioned drive assembly can be a common structure capable of outputting telescopic motion, for example, a linear motor, a crank-slider mechanism, a cam Linkage mechanism, etc.
  • a detection element can be set to detect the rotation angle of the flexible screen 100, and when the rotation angle is greater than a preset value, it is determined that the flexible screen 100 is folded or unfolded, and at this time, the detected signal is transmitted to the electronic
  • the control unit of the device controls the action of the driving component, and then drives the follower 201 to move toward or away from the flexible screen 100 .
  • the flexible screen 100 it can be determined whether the flexible screen 100 is unfolded or folded by detecting whether the rotation angle of the flexible screen 100 is increased or decreased.
  • the angle of the flexible screen 100 increases and the rotation angle is greater than the preset value, it is determined that the flexible screen 100 is unfolded, and at this time, the follower 201 is driven to move toward the flexible screen 100 by the driving component
  • the angle of the flexible screen 100 is reduced and the rotation angle is greater than the preset value, it is determined that the flexible screen 100 is folded, and at this time, the driven member 201 is driven away from the flexible screen by the driving component Screen 100 movement.
  • the above-mentioned follower 201 can be arranged opposite to the fold line when the folding screen is in the folded state, and the second end of the elastic connecting member 300 can be connected to a position close to the fold line, so that when During the process of changing the flexible screen 100 from the unfolded state to the folded state, the follower 201 stretches the redundant part generated by the position of the folding line of the flexible screen 100 to the outside, so as to avoid the formation of the position of the folding line due to local redundancy. Problems with delamination or creases.
  • the above-mentioned elastic connecting member 300 may be a spring. In this way, when the elastic connecting member 300 is in a stretched state, an outward pulling force can be provided for the flexible screen 100 due to the elastic force of the elastic connecting member 300 .
  • the follower 201 is driven to move away from the flexible screen 100 by the driving assembly, so that the elastic connecting member 300 is transformed from a compressed state to a stretched state, that is, the flexible screen 100
  • the elastic connector 300 is in a stretched state, so that under the pulling force of the elastic connector 300, the redundant part of the folded position of the flexible screen 100 will be stretched, thereby effectively alleviating the
  • the folding screen is damaged due to a delamination phenomenon at the folding position.
  • the elastic connector 300 is in a stretched state. At this time, the elastic connector 300 can effectively support the flexible screen 100 and avoid the flexible screen 100 being affected by its own gravity. down, automatically folded.
  • the follower 201 includes an elastic carrier, the first end of the elastic connector 300 is connected to the side of the elastic carrier facing the flexible screen 100 , and the driving component is connected to the elastic The side of the carrier board facing away from the flexible screen 100 is connected;
  • the driving component drives the elastic carrier to switch between the first deformation state and the second deformation state, and the elastic connecting member 300 is in a compression state and an extension state. switch between long states.
  • the elastic carrier plate may be a common elastic plate body, for example, a steel plate, a copper plate, an elastic plastic plate, and the like.
  • the above-mentioned elastic carrier board can be connected with the housing of the electronic device.
  • two connecting posts can be arranged inside the housing, and two ends of the elastic carrier board can be fixedly connected to the two connecting posts respectively,
  • the distance between the two connecting columns can be set to be smaller than the length of the elastic connecting plate, so that when the two ends of the elastic connecting plate are fixed to the two connecting columns, the elastic connecting plate will have two kinds of deformation
  • the two deformation states may be the first deformation state and the second deformation state, respectively.
  • the deformation state in which the elastic connecting plate is arched toward the flexible screen 100 is taken as the first deformation state
  • the deformation state in which the elastic connecting plate is arched away from the flexible screen 100 is taken as the second deformation state.
  • the flexible screen 100 includes a first part and a second part, and the first part and the second part are symmetrically distributed with respect to the first axis of symmetry.
  • the at least one of the first portion and the second portion rotates about the first axis of symmetry;
  • the electronic device includes a plurality of the elastic connecting members 300 , and the plurality of the elastic connecting members 300 are symmetrically arranged about the first axis of symmetry.
  • the first axis of symmetry may be a fold line when the flexible screen 100 is in a folded state, and in the process of switching the elastic carrier plate between the first deformation state and the second deformation state, a plurality of all The elastic connecting members 300 all move synchronously and always maintain the same elastic state. Specifically, when the elastic carrier plate is in the first deformation state, each of the elastic connecting members 300 is in a compressed state. On the contrary, when the elastic carrier plate is in the second deformation state, each elastic connecting member 300 is in a compressed state. stretched state.
  • each elastic connecting member 300 pulls the flexible screen 100 outward from different directions respectively. so that the flexible screen 100 is stretched at the position of the folded line under the elastic force of each elastic connecting member 300 to form the shape shown in FIG. 3 . Since the position of the folded line is stretched, the phenomenon of delamination at the position of the folded line during the process of folding the flexible screen 100 is avoided. In addition, since the position of the folded line is stretched, it is also avoided that the screens on both sides of the folded line are directly folded along the folded line to form a crease, thereby further avoiding the phenomenon of delamination at the position of the folded line.
  • the plurality of elastic connectors 300 include at least two elastic connectors 300 with different free lengths, and the free lengths of the elastic connectors 300 gradually increase along the direction away from the first symmetry axis,
  • the free length of the elastic connector 300 is the length of the elastic connector 300 in a free state.
  • the length of the elastic connecting member 300 in the free state may refer to the length of the elastic connecting member 300 when it is not affected by an external force.
  • the follower 201 is an elastic carrier board
  • the elastic carrier board is arched from the middle, when the flexible screen 100 is in the unfolded state, the various positions of the elastic carrier board and the flexible screen 100 is not the same distance. Therefore, in order to ensure that the supporting force of the elastic connectors 300 at various positions on the flexible screen 100 is relatively uniform, the elastic connectors 300 with different free lengths can be connected to different positions of the elastic carrier board, for example, according to each elastic connection
  • the distance between the position where the member 300 is connected to the flexible screen 100 and the first axis of symmetry determines the length of the elastic connector 300. When the connection position is farther from the first axis of symmetry, the selected elastic connector 300 is relatively more distant. long.
  • the free lengths of the elastic connectors 300 located at the symmetrical positions of the first axis of symmetry can be the same, thereby further ensuring that the flexible screen When the 100 is in the unfolded state, the supporting force of the elastic connectors 300 on both sides of the first symmetry axis to the flexible screen 100 is relatively uniform.
  • the drive assembly includes a drive shaft 204, a cam 202 and a connecting rod 203;
  • the drive shaft 204 is connected with the cam 202 to drive the cam 202 to rotate;
  • the first end of the connecting rod 203 is rotatably connected with the cam 202 , and the second end of the connecting rod 203 is connected with the elastic carrier plate.
  • the cam 202 may be a circular cam 202 , a first shaft hole is provided at the axial position of the cam 202 , and the first end of the drive shaft 204 is fixedly connected to the first shaft hole, so that , the drive shaft 204 can drive the cam 202 to rotate during the rotation process.
  • the eccentric position of the cam 202 may be provided with a second shaft hole, and a first rotating shaft 206 may be set in the second shaft hole, wherein the first rotating shaft 206 and the drive shaft 204 are arranged in parallel, so that the connecting The first end of the rod 203 can be rotatably connected with the cam 202 through the first rotating shaft 206 .
  • the second end of the connecting rod 203 can be rotatably connected to the elastic carrier board through the third rotating shaft 205.
  • the third rotating shaft 205 is connected to the support, and the third rotating shaft 205 is rotatably connected to the support, and then the second end of the connecting rod 203 is connected to the third rotating shaft 205, namely The rotational connection between the second end of the connecting rod 203 and the elastic carrier plate can be realized.
  • the connecting rod 203 will move in a plane with the cam 202.
  • the elastic carrier plate moves to In the first elastic deformation state
  • the elastic carrier plate moves to the second elastic deformation state.
  • the elastic carrier plate is gradually transformed from the first elastic deformation state to the second deformation state.
  • the elastic carrier plate is gradually transformed from the second elastic deformation state to the first deformation state.
  • the drive shaft 204 can be driven to rotate through the folding or unfolding motion of the flexible screen 100, and the drive shaft 204 can also be driven to rotate through a driving member.
  • the output shaft is the drive shaft 204, so that the drive shaft 204 is driven to rotate by a motor.
  • the mechanism of the cam 202 and the link 203 is provided, so that during the process of folding or unfolding the flexible screen 100, the elastic connecting member 300 is driven to switch between the elastic state and the compressed state.
  • the electronic device further includes a first housing 400 and a second housing 500, the first housing 400 is rotatably connected to the second housing 500 through the drive shaft 204, and the first housing 400 is fixedly connected with the drive shaft 204;
  • the end surface of the first casing 400 facing the flexible screen 100 is provided with a first connecting column 401, and the end surface of the second casing 500 facing the flexible screen 100 is provided with a second connecting column 501.
  • the first end of the elastic carrier plate is connected to the first connecting column 401 through the first connecting piece 402 , and the second end of the elastic carrying plate is connected 501 to the second connecting column 501 through the second connecting piece 502 ;
  • the first casing 400 is rotated in the direction toward the second casing 500; when the flexible screen 100 is transformed from the folded state to the unfolded state During the process, the first casing 400 rotates in a direction away from the second casing 500 .
  • the end surface of the first casing 400 facing the elastic carrier is provided with a first connecting column 401
  • the second casing 500 faces the elastic carrier.
  • a second connecting post 501 is provided on the end surface of one side of the elastic carrier, the first end of the elastic carrier is fixed to the first connecting post 401 through the first connecting piece 402, and the second end of the elastic carrier is connected to the first connecting post 401.
  • the second connecting member 502 is fixedly connected to the second connecting column 501 .
  • the first connecting column 401 and the second connecting column 501 may be provided with internal threads, and the first connecting member 402 and the second connecting member 502 may be screws.
  • the elastic carrier plate is connected to the first housing 400 and the second housing 500 through the first connection post 401 and the second connection post 501, so that the elastic carrier plate is relatively
  • the first housing 400 and the second housing 500 are separated, thereby ensuring that the elastic carrier plate can have enough space to smoothly switch between the first elastic deformation state and the second elastic deformation state.
  • the first casing 400 rotates relative to the second casing 500, thereby driving the drive shaft 204 to rotate.
  • the drive shaft 204 When the drive shaft 204 rotates, it will pass through the cam 202, the connecting rod 203 and the elastic carrier plate in turn to drive the The elastic connector 300 stretches. In this way, during the unfolding or folding process of the flexible screen 100 , the first casing 400 drives the drive shaft 204 to rotate without additionally providing a driver to drive the drive shaft 204 , which is beneficial to saving space inside the electronic device.
  • the first housing 400 includes a first plate body 403 and a first bracket 404, the first plate body 403 is disposed opposite the flexible screen 100, the first plate body 403, the first bracket 404 and the drive shaft 204 are fixedly connected in sequence;
  • the second housing 500 includes a second plate 503 and a second bracket 504, the second plate 503 is disposed opposite the flexible screen 100, the second plate 503 is fixedly connected to the second bracket 504 , and the second bracket 504 is rotatably connected to the drive shaft 204 .
  • the first bracket 404 is provided to support the drive shaft 204, so that the drive shaft 204 is spaced apart from the first plate 403, so that when the cam 202 is installed on the drive shaft 204 When the shaft 204 is connected, the cam 202 and the first plate body 403 are spaced apart, so that the cam 202 can smoothly rotate between the first plate body 403 and the elastic carrier plate.
  • the second bracket 504 by disposing the second bracket 504 , the drive shaft 204 is spaced apart from the second plate body 503 , thereby ensuring that the cam 202 is spaced apart from the second plate body 503 .
  • first bracket 404 and the second bracket 504 can be connected to the first plate body 403 and the second plate body respectively through the supports disposed on the surfaces of the first plate body 403 and the second plate body 503 .
  • 503 corresponds to a connection.
  • the cam 202 is spaced apart from the first plate body 403 and the second plate body 503, so as to prevent the cam 202 from being separated from the first shell during the rotation of the cam 202. Interference occurs between the body 400 and the second housing 500 .
  • the electronic device further includes a first rigid support plate 600 and a second rigid support plate 700
  • the flexible screen 100 includes a flexible screen body 101 and a flexible support plate 102
  • the flexible support plate 102 is located in the Between the first rigid support plate 600 and the second rigid support plate 700 , and the first rigid support plate 600 , the flexible support plate 102 and the second rigid support plate 700 are all connected to the flexible screen body 101 .
  • the non-display end faces are arranged to fit together; the second end of the elastic connector 300 is connected to the flexible support plate 102 .
  • the first rigid support plate 600 and the second rigid support plate 700 may be steel plates or rigid plastic plates.
  • the flexible support plate 102 may be a deformable plate-like structure, so that during the process of folding the flexible screen 100, the flexible support plate 102 is folded accordingly.
  • the area of the flexible screen 100 corresponding to the first rigid support plate 600 and the second rigid support plate 700 is always Keep it flat.
  • the flexible support plate 102 includes a plurality of strip-shaped plates 701 that are respectively parallel to the preset folding positions.
  • the rotating shaft 702 is located at one end of the strip plate 701 close to the flexible screen 100 .
  • the first rigid support plate 600 , the flexible support plate 102 and the second rigid support plate 700 are connected in sequence.
  • FIG. 13 is a connection state diagram of the first rigid support plate 600 , the flexible support plate 102 and the second rigid support plate 700 when the flexible screen 100 is in the unfolded state.
  • the two ends are respectively fixed to the first rigid support plate 600 and the second rigid support plate 700 , and the lower ends of the two adjacent strip plates 701 abut against each other. Therefore, the flexible support plate 102 cannot be under the elastic force of the elastic connecting member 300 . Continued upward bending deformation occurs, that is, the flexible support plate 102 cannot be deformed by arching upward, thereby ensuring the flatness of the flexible screen 100 in the unfolded state.
  • the second rotating shaft 702 between the two adjacent strip-shaped plates 701 is located near one end of the flexible screen 100 , during the process of folding the flexible screen 100 , the two adjacent strip-shaped plates 701 can be wound around the flexible screen 100 .
  • the second rotating shaft 702 between the two rotates, so that the flexible support plate 102 is arched downward to form the state shown in FIG. 3 .
  • the flexible support plate 102 can only move to a horizontal state toward the flexible screen 100 , and can move to an arched state away from the flexible screen 100 . In this way, the flatness of the flexible screen 100 is ensured when the flexible screen 100 is in the unfolded state, and the flexible support plate 102 can be folded together with the flexible screen 100 during the folding process of the flexible screen 100 .
  • the first rigid support plate 600 , the flexible support plate 102 and the second rigid support plate 700 in sequence, the problem of poor support due to gaps formed between the rigid support plate and the flexible support plate 102 is avoided.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention concerne un dispositif électronique se rapportant au domaine technique des produits électroniques. Le dispositif électronique comprend un écran flexible (100), un mécanisme d'entraînement (200) et un connecteur élastique (300) ; le mécanisme d'entraînement (200) comprend un ensemble d'entraînement et un suiveur (201) ; une première extrémité du connecteur élastique (300) est reliée au suiveur (201), et une seconde extrémité du connecteur élastique (300) est reliée à l'écran flexible (100). Lorsque l'écran flexible (100) passe d'un état déplié à un état plié, l'ensemble d'entraînement entraîne le suiveur (201) à se déplacer dans une direction distante de l'écran flexible (100) et le connecteur élastique (300) passe d'un état comprimé à un état étiré. Lorsque l'écran flexible (100) passe de l'état plié à l'état déplié, l'ensemble d'entraînement entraîne le suiveur (201) à se déplacer dans une direction proche de l'écran flexible et le connecteur élastique (300) passe de l'état étiré à l'état comprimé.
PCT/CN2021/114271 2020-08-28 2021-08-24 Dispositif électronique WO2022042534A1 (fr)

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CN202010883911.9A CN111968513B (zh) 2020-08-28 2020-08-28 电子设备
CN202010883911.9 2020-08-28

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WO2022042534A1 true WO2022042534A1 (fr) 2022-03-03

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CN113436537B (zh) * 2021-06-30 2023-06-20 上海天马微电子有限公司 显示模组及显示装置
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CN114203040A (zh) * 2021-12-03 2022-03-18 合肥维信诺科技有限公司 一种柔性显示面板及柔性显示装置
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CN114928666A (zh) * 2022-04-29 2022-08-19 维沃移动通信有限公司 电子设备
CN115457862A (zh) * 2022-08-25 2022-12-09 上海天马微电子有限公司 可折叠显示面板及显示装置

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