WO2023124463A1 - Dispositif électronique pliable - Google Patents

Dispositif électronique pliable Download PDF

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Publication number
WO2023124463A1
WO2023124463A1 PCT/CN2022/127282 CN2022127282W WO2023124463A1 WO 2023124463 A1 WO2023124463 A1 WO 2023124463A1 CN 2022127282 W CN2022127282 W CN 2022127282W WO 2023124463 A1 WO2023124463 A1 WO 2023124463A1
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WO
WIPO (PCT)
Prior art keywords
area
electronic device
flexible display
foldable electronic
support
Prior art date
Application number
PCT/CN2022/127282
Other languages
English (en)
Chinese (zh)
Inventor
许少鹏
王亚峰
Original Assignee
Oppo广东移动通信有限公司
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 Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2023124463A1 publication Critical patent/WO2023124463A1/fr

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets

Definitions

  • the present application relates to the technical field of terminals, in particular to a foldable electronic device.
  • a foldable electronic device is provided.
  • a foldable electronic device comprising:
  • a flexible display screen is arranged on the shell assembly; the flexible display screen has an effective area for displaying, and the effective area includes a first plane area and a second plane area connected to the first plane area; then When the shell assembly is switched between the folded state and the unfolded state, the flexible display screen has an inwardly folded state, a flattened state, and an outwardly folded state, and in the inwardly folded state, the unfolded state, and the outwardly folded state, In this state, the included angles between the first planar area and the second planar area are 0°, 180° and 360° in sequence.
  • FIG. 1 is a schematic diagram of a foldable electronic device in an inwardly folded state according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of the foldable electronic device shown in FIG. 1 in a flattened state
  • FIG. 3 is a schematic diagram of the foldable electronic device shown in FIG. 1 in an outwardly folded state
  • Fig. 4 is the enlarged schematic view of the structure at E place in Fig. 2;
  • Fig. 5 is a schematic diagram of the linkage between the screen adjustment component, the sensor and the circuit board in Fig. 4 to tighten or release the flexible display;
  • Fig. 6 is a schematic diagram of the operation flow of releasing or recovering the flexible display screen in coordination with each device in Fig. 5;
  • FIG. 7 is a schematic diagram of the flexible display screen and the supporting structures installed thereon in the foldable electronic device shown in 2;
  • Fig. 8 is a schematic diagram of two mating states of the slide rail support and the shell assembly shown in Fig. 7;
  • Figure 9 is an enlarged schematic view of the structure at F in Figure 7;
  • FIG. 10 is an enlarged schematic diagram of a partial structure of the foldable electronic device shown in FIG. 2;
  • Fig. 11 is a schematic diagram of the connection relationship between the first housing and the transmission mechanism in Fig. 10 .
  • terminal equipment refers to a device capable of receiving and/or sending communication signals, including but not limited to, connected via any one or several of the following connection methods:
  • connection via wired lines such as public switched telephone network (Public Switched Telephone Networks, PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, direct cable connection;
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • wireless interface such as cellular network, wireless local area network (Wireless Local Area Network, WLAN), digital TV network such as DVB-H network, satellite network, AM-FM broadcast transmitter.
  • wireless local area network Wireless Local Area Network, WLAN
  • digital TV network such as DVB-H network
  • satellite network AM-FM broadcast transmitter.
  • a terminal device arranged to communicate over a wireless interface may be referred to as a "mobile terminal".
  • mobile terminals include, but are not limited to, the following electronic devices:
  • PCS Personal Communications System
  • the foldable electronic device includes a shell assembly and a flexible display screen, the flexible display screen is arranged on the shell assembly; the flexible display screen has an effective area for displaying, and the effective area includes a first plane region and a second planar region connected to the first planar region; as the shell component transitions between the folded state and the unfolded state, the flexible display screen has an inwardly folded state, a flattened state, and an outwardly folded state, In the inwardly folded state, the flattened state and the outwardly folded state, the included angles between the first planar area and the second planar area are 0°, 180° and 360° in sequence.
  • At least one of the first planar area and the second planar area can move relative to the housing assembly, and the flexible display screen is at least in the flattened state and the outwardly folded state. tension.
  • the flexible display screen includes a bending area between the first plane area and the second plane area, and the first plane area, the second plane area and the bending area
  • the folded areas jointly constitute the effective area, and the area of the effective area changes with the change of the state of the flexible display screen.
  • the flexible display screen includes an auxiliary area connected to the active area
  • the foldable electronic device includes a screen adjustment component connected to the auxiliary area, and the screen adjustment assembly It is used to drive at least one of the first plane area and the second plane area to move relative to the shell assembly.
  • the foldable electronic device includes a circuit board and a sensor
  • the circuit board and the sensor are both built into the shell assembly
  • the sensor is used to detect the first planar region and the second
  • the sensor and the screen adjustment component are both communicatively connected to the circuit board.
  • the auxiliary areas are provided on opposite sides of the effective area, there are two screen adjustment components, and the two screen adjustment components are connected to the two auxiliary areas in one-to-one correspondence.
  • the screen adjustment assembly includes a driving member and a first rotor, at least part of the auxiliary area is wound around the first rotor, and the driving member is connected to the first rotor and used to drive the The first rotor rotates.
  • the shell assembly is formed with an opening, and the flexible display screen protrudes into the shell assembly through the opening, so that the active area is exposed outside the shell assembly, and the auxiliary area housed inside the shell assembly.
  • the foldable electronic device further includes a second rotor, the screen adjustment component and the second rotor are arranged inside the shell component, the auxiliary area is connected with the screen adjustment component, and extending to the opening after wrapping around the outer circumference of the second rotor.
  • the foldable electronic device further includes a first support structure, at least part of the auxiliary area is provided with the first support structure, the first support structure is used to support the auxiliary area, and When the auxiliary area wraps around the second rotor, it abuts against the second rotor.
  • the first support structure includes a plurality of strip-shaped first support blocks, and the plurality of first support blocks are sequentially spaced from a position close to the effective area to a position away from the effective area arranged.
  • the cross-sectional shape of the bending region when the flexible display is in the inwardly-folded state, is in the shape of a drop; when the flexible display is in the outwardly-folded state, the bending area The cross-sectional shape of the region is arc-shaped; when the flexible display is in the flattened state, the bending region is coplanar with the first planar region and the second planar region.
  • the foldable electronic device further includes a slide rail support, the slide rail support is disposed on the first plane area, and is slidably connected with the shell assembly, and is perpendicular to the second plane.
  • the direction of a planar area resists the shell component to form a limit;
  • the foldable electronic device further includes a slide rail support, the slide rail support is arranged on the second plane area, and is slidably connected with the shell assembly, and is perpendicular to the second plane area. The direction is opposed to the shell assembly to form a limit.
  • the foldable electronic device further includes a slide rail support, the slide rail support is slidably connected to the casing, and the first plane area and the second plane area are both provided with The above-mentioned slide rail support, wherein, the slide rail support provided on the first plane area is opposed to the shell assembly in a direction perpendicular to the first plane area to form a position limiter, and is located on the The slide rail supporting member in the second plane area abuts against the shell assembly in a direction perpendicular to the second plane area to form a position limit.
  • the foldable electronic device further includes a second support structure disposed in the bending area, and the second support structure is used to support the bending area.
  • the second support structure includes a plurality of strip-shaped second support blocks, and the plurality of second support blocks are arranged sequentially from the first planar area to the second planar area, When the flexible display screen is in the flattened state and the outwardly folded state, any adjacent two of the second support blocks cooperate with each other to support the bending area.
  • Any two adjacent second support blocks are respectively provided with a first magnetic attraction and a second magnetic attraction, and the first magnetic attraction and the second magnetic attraction are magnetically attracted;
  • any two adjacent second support blocks are respectively provided with a first abutment portion and a second abutment portion, and in the flattened state, any two adjacent second support blocks pass through the first abutting portion.
  • a resisting portion is resisted against the second resisting portion, and a plurality of the second supporting blocks can jointly form a supporting surface parallel to the first planar area and the second planar area;
  • any adjacent two of the second support blocks are respectively provided with a third abutment portion and a fourth abutment portion, and in the outwardly folded state, any adjacent two of the second support blocks pass through the first
  • the three abutting portions are abutted against the fourth abutting portion, and a plurality of the second support blocks jointly form an arc-shaped support surface capable of supporting the bending area, and the bending area is supported on the arc-shaped support. Under the support of the surface, it is smoothly connected with the first planar area and the second planar area.
  • the foldable electronic device further includes an elastic elastic support member, the elastic support member is arranged between the second support structure and the bending area, and is used to support the bending area. district.
  • the elastic supporting member is in the shape of a sheet.
  • the shell assembly includes a first shell and a second shell, the first plane area is located on the first shell, and the second plane area is located on the second shell;
  • the foldable electronic device includes a transmission mechanism, the transmission mechanism includes a cover, a first link assembly and a second link assembly, the first link assembly connects the cover and the first housing, so The second link assembly is connected to the cover and the second housing, and the first link assembly and the second link assembly are respectively connected to both ends of the cover;
  • the flexible display screen When it is in a flattened state, the first casing and the second casing are respectively located at both ends of the cover, and when the flexible display is in a folded state, the first casing and the second casing are Both housings are located on one side of the inner surface of the cover, and when the flexible display screen is in a folded state, the first housing and the second housing are both located on one side of the outer surface of the cover .
  • the first housing includes a first support body and a first protection body connected to the first support body, the first planar area is located on the first support body, and the A housing interior along a direction perpendicular to the first plane area, the first support body and the first protection body are respectively provided with a first connection part and a second connection part opposite to each other;
  • the assembly includes a first connecting rod and a second connecting rod, the two ends of the first connecting rod are respectively connected to the first connecting part and the cover in rotation; one end of the second connecting rod is connected to the cover Rotationally connected, the other end is slidably connected to the second connecting part along a direction parallel to the first planar area; and/or,
  • the second housing includes a second support body and a second protection body connected to the second support body, the second planar area is located on the second support body, and is vertically inside the second housing body.
  • the second supporting body and the second protective body are respectively provided with a third connecting portion and a fourth connecting portion;
  • the second connecting rod assembly includes a third connecting rod and the fourth connecting rod, the two ends of the third connecting rod are respectively connected to the third connecting part and the cover in rotation; one end of the fourth connecting rod is connected to the cover in rotation, and the other end is connected to the cover in rotation.
  • the fourth connecting portion is slidably connected along a direction parallel to the second planar area.
  • first connecting rod assembly when the first connecting rod assembly includes a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are respectively connected to two spacers on the cover. position, and can rotate 180° relative to the cover; when the second link assembly includes a third link and a fourth link, the third link and the fourth link are respectively It is connected to two spaced positions on the cover, and both of them can rotate 180° relative to the cover.
  • the flexible display screen includes a protective layer, a functional layer, and a buffer layer that are sequentially stacked from outside to inside;
  • the foldable electronic device also includes at least one of the following technical solutions:
  • the protective layer has a transparent structure and can allow light to pass through;
  • the functional layer is a flexible panel that can be bent and deformed
  • the elastic deformation capacity of the buffer layer in a direction parallel to its plane is smaller than the elastic deformation capacity in a direction perpendicular to its plane.
  • the foldable electronic device 10 of this embodiment may be, but not limited to, terminal devices such as mobile phones and tablet computers, or other portable electronic devices.
  • terminal devices such as mobile phones and tablet computers, or other portable electronic devices.
  • a mobile phone is taken as an example for description.
  • the foldable electronic device 10 includes a case assembly 100 and a flexible display 300 .
  • the flexible display 300 is disposed on the case assembly 100 .
  • the flexible display screen 300 has an active area S for displaying.
  • the active area S includes a first plane area S1 and a second plane area S2 connected to the first plane area S1.
  • the flexible display screen 300 has an inwardly folded state (as shown in FIG. 1 ), a flattened state (as shown in FIG. 2 ) and an outwardly folded state (as shown in FIG. 3 ). In the outwardly folded state, the included angles between the first planar area S1 and the second planar area S2 are 0°, 180° and 360° in sequence.
  • the shell assembly 100 includes a first shell 110 and a second shell 130 connected to the first shell 110 , the first shell 110 and the second shell 130 are hollow structures for built-in flexible display screen 300 Associated electronic components for display. At least part of the first housing 110 is covered by the flexible display 300, and at least part of the second housing 130 is covered by the flexible display 300, that is, both the first housing 110 and the second housing 130 are directly or indirectly connected to the flexible display 300 , and jointly play a supporting role for the flexible display screen 300 .
  • the area capable of displaying in the flexible display screen 300 is the effective area S.
  • the first housing 110 may provide a first flat mounting surface (not shown), and the second housing 130 may provide a second flat mounting surface (not shown)
  • the part of the flexible display screen 300 corresponding to the first installation surface is close to the first installation surface and becomes a first planar region S1 of a plane, corresponding to The part of the flexible display screen 300 on the second installation surface is close to the second installation surface to form a second planar region S2 that is planar.
  • both the first planar area S1 and the second planar area S2 are planar and will not be bent.
  • the flexible display screen 300 when the flexible display screen 300 is in the folded state, the first planar area S1 and the second planar area S2 are in contact with each other, and the angle between them is 0°. At this time, the effective area S is covered by the first The casing 110 and the second casing 130 are clamped, that is, the effective area S is located between the first casing 110 and the second casing 130 and cannot be exposed, so it cannot be displayed, but the first casing 110 and the second casing 130 can protect the active area S to prevent the active area S from being damaged.
  • the entire effective area S is flattened, so that the first plane area S1 and the second plane area S2 are coplanar and the angle between them reaches 180°.
  • the effective area S All of them can be displayed so that the foldable electronic device 10 has the largest display area, thereby realizing a large-screen display.
  • the angle between the first plane area S1 and the second plane area S2 is 360°, and the two are relatively spaced apart, and the first housing 110 and the second housing 130 are located Between the first plane area S1 and the second plane area S2.
  • the first planar area S1 and the second planar area S2 can be displayed separately, so that the foldable electronic device 10 can realize a half-screen display.
  • first shell 110 is connected with the second shell 130 and both can move relative to each other, so that the shell assembly 100 is in an unfolded state or a folded state. It can be understood that the shell assembly 100 can be folded or unfolded similarly to a book. When folded, the first shell 110 and the second shell 130 are stacked together like two pages of book paper. When unfolded, the first shell 110 and the second shell 130 are stacked together. 110 and the second casing 130 are unfolded like two pages of paper and are coplanar. Alternatively, it can be understood that the first shell 110 and the second shell 130 are stacked together in the shell assembly 100, and the first mounting surface of the first shell 110 is roughly in contact with the second mounting surface of the second shell 130.
  • the shell assembly 100 is in a folded state, and the flexible display screen 300 is in a folded state; in the shell assembly 100, the first shell 110 and the second shell 130 are stacked together, and the first shell 110 of the first shell 110 The installation surface and the second installation surface of the second casing 130 form the two outermost surfaces of the shell assembly 100 in the stacking direction.
  • the shell assembly 100 is also in a folded state, and the flexible display screen 300 is in a folded state;
  • the first shell 110 and the second shell 130 in the shell assembly 100 can be placed at two positions on the horizontal plane, and the first mounting surface of the first shell 110 is shared with the second mounting surface of the second shell 130 and both are parallel to the horizontal plane.
  • the shell assembly 100 is in the unfolded state, and the flexible display screen 300 is in the flattened state. It can also be understood that when the flexible display screen 300 is in the folded state and the folded state, the shell assembly 100 is in the folded state, and when the flexible display screen 300 is in the flattened state, the shell assembly 100 is in the unfolded state.
  • the flexible display 300 by making the flexible display 300 have three states of inward folding, flattening and outward folding, and in the process of use, it can be displayed on a large screen in the flattened state, or can be switched to the outward folding state. The status is displayed on a half-screen, so that the foldable electronic device 10 can meet various usage needs of users.
  • the flexible display screen 300 can also be converted to an inwardly folded state, so that the effective area S is hidden, so that the shell assembly 100 can protect the flexible display screen 300, preventing the effective area S from being exposed due to exposure. damage.
  • the flexible display screen 300 is tensioned at least in a flattened state and an outwardly folded state.
  • the first planar area S1 and/or the second planar area S2 move relative to the shell assembly 100 to adapt to the shape change of the shell assembly 100, thereby ensuring flexibility in the flattened state and the outwardly folded state.
  • the display screen 300 is tensioned to avoid warping and deformation of the effective area S if it is not tensioned, and thus cannot perform normal display.
  • one end of the flexible display 300 can be fixedly connected to the first casing 110, and the other end can be moved relative to the second casing 130.
  • the flexible display The second plane area S2 of the screen 300 moves relative to the second casing 130 to tension the flexible display screen 300 in the flattened state and the outwardly folded state.
  • one end of the flexible display screen 300 may be fixedly connected to the second housing 130, and the other end may be movable relative to the first housing 110.
  • the flexible display The first planar area S1 of the screen 300 moves relative to the first housing 110 to tension the flexible display screen 300 in a flattened state and an outwardly folded state.
  • one end of the flexible display 300 moves relative to the first casing 110, and the other end of the flexible display 300 moves relative to the second casing 130, so that the first planar area S1 of the flexible display 300 Relative to the first housing 110 , the second planar area S2 can move relative to the second housing 130 , so as to be able to tension the flexible display screen 300 in a flattened state and an outwardly folded state.
  • the flexible display screen 300 includes a bending region S3 located between the first planar region S1 and the second planar region S2, the first planar region S1, the second planar region S2 and the bending region S3 together constitute an effective region S,
  • the area of the active area S changes as the state of the flexible display 300 changes. It can be understood that during the state transition process of the flexible display screen 300, the first planar region S1 and the second planar region S2 remain flat without deformation, and the bending region S3 is connected to the first planar region S1 and the second planar region S2. In between, the shape changes with the change of the included angle between the first planar region S1 and the second planar region S2.
  • the bending area S3 is coplanar with the first planar area S1 and the second planar area S2 , and the bending area S3 is capable of displaying images, so it also belongs to a part of the effective area S. It can be understood that as the angle between the first plane area S1 and the second plane area S2 gradually increases, the flexible display screen required to extend from the first installation surface to the second installation surface and cover the two and the area between the two The area of 300 will increase, and this part of the flexible display 300 is also the effective area S of the flexible display 300, and as the angle between the first plane area S1 and the second plane area S2 gradually decreases, the effective area S area is also gradually reduced.
  • the effective area S can just cover the first installation surface, the second installation surface and the area between them, thereby It can maintain normal display in various states, avoiding the problem that the effective area S is redundant or is pulled by transition and affects the normal display.
  • the flexible display 300 extends from the first housing 110 to the second housing 130 to have a length direction (direction along the X-axis), and has a width direction perpendicular to the length direction (direction along the Y axis), and also has a thickness direction (direction along the Z axis).
  • the first plane area S1 may move relative to the first housing 110, or the second plane area S2 may move relative to the second housing 130, or
  • the first plane area S1 moves relative to the first housing 110, and the second plane area S2 moves relative to the second housing 130, so that the size of the effective area S in the length direction changes, but the size in the width direction does not change, so that the effective area S
  • the area of the region S changes. It can be understood that the area change of the effective area S is not obtained by pulling and extending the flexible display screen 300 in the length direction, but that the part of the flexible display screen 300 that is not originally the active area S moves to correspond to the first installation surface and the second installation surface. After the installation surface is transformed into a part of the effective area S obtained.
  • the flexible display screen 300 includes an auxiliary area 310 connected to the active area S
  • the foldable electronic device 10 includes a screen adjustment component 500 , and the screen adjustment component 500 and the auxiliary area 310 connected, the screen adjustment assembly 500 is used to drive at least one of the first plane area S1 and the second plane area S2 to move relative to the housing assembly 100 .
  • the screen adjustment component 500 By setting the screen adjustment component 500, the flexible display screen 300 can be driven to move, and part of the auxiliary area 310 can be converted into a part of the effective area S for display, or part of the effective area S can be converted into a part of the auxiliary area 310, so that The area of the effective area S is changed.
  • the auxiliary area 310 is composed of two parts, one part is a part of the flexible display screen 300 that can be converted between the active area S and the auxiliary area 310, and the other part is far away from the active area S and cannot be converted into a Part of the flexible display screen 300 in the active area S.
  • the screen adjustment assembly 500 includes a driving member 510 and a first rotor 520 connected to the driving member 510, part of the auxiliary area 310 is wound around the first rotor 520, and the driving member 510 is connected to the first rotor 520.
  • the rotor 520 is connected, and the driving member 510 is used to drive the first rotor 520 to rotate.
  • the driving member 510 is a servo motor, and by connecting the first rotor 520 to the output shaft of the driving member 510, the flexible display screen 300 can be driven while occupying a small space.
  • the first rotor 520 can also be replaced by a gear and a rack, and the gear is driven to rotate through the driving member 510, so that the gear drives the rack to translate, so that the rack drives the flexible display 300 to move.
  • the shell assembly 100 is formed with an opening 150 through which the flexible display 300 protrudes into the shell assembly 100 , so that the active area S is exposed outside the shell assembly 100 , and the auxiliary area 310 is accommodated inside the shell assembly 100 .
  • the auxiliary area 310 is housed inside the shell assembly 100 and hidden, and when the area of the active area S increases, part of the auxiliary area 310 can be exposed outside the shell assembly 100 through the opening 150 and converted into a part of the active area S.
  • an opening 150 may be provided at an end of the first shell 110 away from the second shell 130 .
  • an opening 150 can be defined at an end of the second housing 130 away from the first housing 110 .
  • an opening 150 is opened at the end of the first housing 110 away from the second housing 130 and the end of the second housing 130 away from the first housing 110 , so that one end of the flexible display 300 passes through the One opening 150 protrudes into the first housing 110 , and the other end protrudes into the second housing 130 through the other opening 150 .
  • the foldable electronic device 10 further includes a second rotor 160, the screen adjustment component 500 and the second rotor 160 are arranged inside the shell component 100, the auxiliary area 310 is connected with the screen adjustment component 500, and after wrapping around the outer circumference of the second rotor 160 Extends to opening 150 .
  • the flexible display screen 300 can be buffered between the opening 150 and the screen adjustment assembly 500, so that the flexible display screen 300 can smoothly extend from the outside of the shell assembly 100 to the inside of the shell assembly 100, avoiding the The 300 bending angle is too large and it is easy to be damaged.
  • the second rotor 160 is disposed corresponding to the opening 150 , and the auxiliary area 310 bypasses the second rotor 160 and extends toward the opening 150 in an arc shape.
  • auxiliary areas 310 are provided on opposite sides of the effective area S, and there are two screen adjustment assemblies 500, and the two screen adjustment assemblies 500 are connected to the two auxiliary areas 310 in one-to-one correspondence, and one of the screen adjustment assemblies 500 is arranged on the
  • the first housing 110 and another screen adjustment component 500 are disposed on the second housing 130 .
  • the foldable electronic device 10 includes a circuit board 810 and a sensor 820, both of which are built in the case assembly 100, and the sensor 820 is used to detect the first planar area S1 and the second For information about the included angle between the two planar areas S2 , the sensor 820 and the screen adjustment component 500 are both in communication connection with the circuit board 810 . It can be understood that the sensor 820 can send the detected angle information between the first plane area S1 and the second plane area S2 to the circuit board 810, and the circuit board 810 then sends a signal to the screen adjustment assembly 500, so that the screen adjustment assembly 500 drives the flexible The display screen 300 moves, so that the area of the effective area S changes as the state of the flexible display screen 300 changes.
  • the senor 820 can periodically send included angle information to the circuit board 810 , and the circuit board 810 can determine the change trend and speed of the included angle through a plurality of included angle information.
  • the sensor 820 is a Hall sensor, and may also be other sensors 820 with similar functions.
  • the circuit board 810 (not shown in the figure) may integrate a processor, a power management module, a storage unit, a baseband chip, and the like.
  • the sensor 820 detects the distance between the first plane area S1 and the second plane area S2 in the initial state.
  • the included angle ⁇ is 0°, that is, the sensor 820 is at the initial position in the inwardly folded state.
  • the circuit board 810 first determines the change trend of ⁇ , and if ⁇ is gradually increasing, it is judged that the flexible display screen 300 needs to be converted from the inwardly folded state to the flattened state or from the flattened state.
  • the area of the effective area S needs to be increased, so a signal is sent to the servo motor to make the servo motor rotate forward, and the servo motor further drives the first rotor 520 to rotate forward to release the flexible display 300; if ⁇ is If the trend is gradually decreasing, it is judged that the flexible display screen 300 needs to switch from the outwardly folded state to the flattened state or from the flattened state to the inwardly folded state, then the area of the effective area S needs to be reduced, so a signal is sent to the servo motor so that The servo motor reverses, and the servo motor further drives the first rotor 520 to rotate in reverse to wind up the flexible display screen 300 .
  • the flexible display screen 300 specifically transitions from the inward-folded state to the flattened state, from the flattened state to the outward-folded state, from the outward-folded state to the flattened state, and from the folded state to the flattened state.
  • the forward or reverse rotation speed of the servo motor can be controlled by changing the speed of the included angle, so as to avoid redundant or excessive pulling of the flexible display screen 300 .
  • the sensor 820 when the sensor 820 detects that the angle ⁇ between the first plane area S1 and the second plane area S2 is 180°, that is, when the flexible display screen 300 is in a flattened state, the sensor 820 Set to the initial state.
  • the angular velocity of the servo motor in the first screen adjustment assembly is w1
  • the radius of the first rotor 520 is r1
  • the angular velocity of the servo motor in the second screen adjustment assembly is w2
  • the radius of the first rotor 520 is r1'
  • the change angular velocity of ⁇ is w2
  • n is the thickness of the flexible display screen 300, and the first rotor 520 rotates once, and the radius of rotation increases by n; the size change of the effective area S along the length direction is l, and l is related to the inwardly folded state of the bending area S3, the outwardly folded It is related to the shape in the folded state.
  • the adjustment amounts of the first screen adjustment component and the second screen adjustment component to the flexible display screen 300 are equal, and f(r1,n), f(r1',n), and G(w2*l) are known
  • w1 and w1' can be calculated, so that the two screen adjustment assemblies 500 can effectively recover or release the flexible display screen 300 without redundancy or excessive pulling.
  • the two screen adjustment assemblies 500 tend to tighten the flexible display screen 300 to improve the flatness of the bending area S3, thereby reducing creases and helping to support the bending area S3.
  • a step consistent with the thickness of the flexible display screen 300 is provided on the outer periphery of the first rotor 520, and the end of the flexible display screen 300 is just placed at the step, so that the flexible display screen 300 After one rotation along the first rotor 520 , it transitions smoothly to the previous round of flexible display screen 300 , so as to continue winding in a helical shape. In this way, the radius of rotation increases by n every time the first rotor 520 rotates one round.
  • the foldable electronic device 10 includes a first support structure 610, at least part of the auxiliary area 310 is provided with the first support structure 610, and the first support structure 610 is used to support the auxiliary area 310 , and abut against the second rotor 160 when the auxiliary area 310 wraps around the second rotor 160 .
  • the first support structure 610 By setting the first support structure 610, the flexible display screen 300 can be supported, reducing the possibility of the auxiliary area 310 being stretched and deformed, and at the same time increasing the minimum bending radius of the flexible display screen 300 to avoid bending of the flexible display screen 300 Damage due to overdose.
  • all of the auxiliary area 310 is provided with the first support structure 610.
  • the auxiliary area 310 includes a part of the flexible display screen 300 that can be switched between the active area S and the auxiliary area 310.
  • only a part of the auxiliary region 310 may be provided with the first support structure 610 .
  • the first support structure 610 may also be provided in the effective area S. Specifically, when the auxiliary area 310 wraps around the second rotor 160, the first support structure 610 contacts the second rotor 160, so that the second rotor 160 does not directly contact the auxiliary area 310, so as to reduce the relative strength of the auxiliary area 310 to the second rotor 160. The possibility of the rotor 160 being worn as it moves back and forth.
  • the first support structure 610 includes a plurality of strip-shaped first support blocks, and the plurality of first support blocks are arranged at intervals from a position close to the effective area S to a position far away from the effective area S.
  • a plurality of first supporting blocks cooperate together to support the auxiliary area 310 . It can be understood that if the first support structure 610 is a complete plate, it will not be easily bent and deformed due to excessive tension, and it will smoothly bypass the second rotor 160. By setting the first support structure 610 into a plurality of bar The first support block, so that the tension can be reduced while achieving the supporting effect.
  • the first support block is in the shape of a trapezoid whose cross-section gradually shrinks in a direction away from the flexible display screen 300 .
  • the cross section of the first support block may also be in other shapes, such as a semicircle.
  • the flexible display screen 300 is in a folded state, and the cross-sectional shape of the bending area S3 is in the shape of a water drop.
  • the bending area S3 is in the shape of a water drop, a local cavity can be formed to meet the minimum bending radius requirement of the bending area S3 and prevent the bending transition of the bending area S3 from causing creases on the flexible display screen 300 and affecting the display effect.
  • the flexible display screen 300 is in a state of being folded outward, and the cross-sectional shape of the bending area S3 is arc-shaped. In this way, the bending area S3 can realize a smooth transition between the first planar area S1 and the second planar area S2.
  • the flexible display screen 300 is in a flattened state, and the bending area S3 is coplanar with the first plane area S1 and the second plane area S2, so that the effective area S is flattened to meet the requirement of large-screen display.
  • the first planar region S1, the bending region S3, and the second planar region S2 can all achieve a smooth transition without overfolding and creases.
  • the foldable electronic device 10 includes a slide rail support 620 , and the slide rail support 620 is installed on both the first planar area S1 and the second planar area S2 .
  • the slide rail support 620 is slidably connected with the shell assembly 100, and is connected to the shell assembly 100 in a direction perpendicular to the first plane area S1 (that is, the thickness direction of the flexible display screen 300). Resist and form a limit.
  • the slide rail support 620 in the second plane area S2, the slide rail support 620 is slidably connected with the shell assembly 100, and abuts against the shell assembly 100 in a direction perpendicular to the second plane area S2 to form a stop.
  • the flexible display screen 300 can be limited in the thickness direction of the flexible display screen 300, avoiding the flexible display screen 300 from moving in the thickness direction, enhancing the reliability of the surface structure, and preventing the flexible display screen 300 from being relative to the shell assembly. 100 off.
  • the moving direction of the flexible display screen 300 relative to the shell assembly 100 can be limited, and the flexible display screen 300 can be guided to move relative to the shell assembly 100 .
  • only one of the first planar area S1 and the second planar area S2 may be provided with the slide rail support 620 .
  • the slide rail support 620 corresponding to the first planar area S1 is slidably connected to the first housing 110
  • the slide rail support 620 corresponding to the second planar area S2 is slidably connected to the second housing 130 .
  • the slide rail support member 620 is in the shape of a flat plate, and is attached to the inner side of the flexible display screen 300 to keep fixed with the flexible display screen 300 . It can be understood that the slide rail support 620 roughly corresponds to the first plane area S1 and the second plane area S2, so that the first plane area S1 and the second plane area S2 remain flat during the movement of the flexible display screen 300 relative to the housing assembly 100 . Specifically, as shown in (a) of FIG. 8 , slide grooves 160 can be provided at positions corresponding to the slide rail support 620 on the first housing 110 and the second housing 130 to make the slide rail support 620 exceed the flexibility.
  • the edge of the display screen 300 has a certain length, and the part of the slide rail support 620 beyond the edge of the flexible display screen 300 is accommodated in the chute 160, and the chute 160 constrains the slide rail support 620 in the thickness direction of the flexible display screen 300 and guides The flexible display screen 300 slides relative to the case assembly 100 along its length direction.
  • a chute 180 corresponding to the slider 621 is provided on the top.
  • the slider 621 can be in an "L" shape, a "T" shape or a dovetail shape.
  • the chute 180 constrains the slider 621 in the thickness direction of the flexible display 300 .
  • magnetic attractors may also be provided on the shell assembly 100 and the slide rail support 620 , so that the slide rail support 620 is in close contact with the shell assembly 100 through magnetic action.
  • installation grooves 190 can also be provided in the first housing 110 and the second housing 130, and the two edge regions of the flexible display 300 in the width direction can be accommodated in the installation grooves 190, thereby being covered. , so as to achieve the purpose of being beautiful and protecting the flexible display screen 300 .
  • the foldable electronic device 10 includes a second support structure disposed in the bending area S3 , and the second support structure is used to support the bending area S3 .
  • the supporting function of the second support structure ensures that when the flexible display screen 300 is in the flattened state, the bending area S3 can be coplanar with the first plane area S1 and the second plane area S2, so that the effective area S has a better display effect.
  • the second support structure can increase the structural strength at the bending area S3, so as to avoid depressions when pressed in the flattened state, and provide a better touch experience.
  • the second supporting structure in the outwardly bent state, can support the bending area S3, increase the bending radius of the bending area S3, and avoid over-folding of the bending area S3.
  • the second support structure includes a plurality of second support blocks 630 in the form of strips, and the plurality of second support blocks 630 are arranged sequentially from the first planar area S1 to the second planar area S2. In the flat state and the outwardly folded state, any two adjacent second support blocks 630 cooperate with each other to support the bending area S3. It can be understood that if the second support structure is a complete plate, it will not easily be bent and deformed due to excessive tension. By setting the second support structure as a plurality of strip-shaped second support blocks 630, from the opposite The bending area S3 plays a supporting role, increases the bending radius of the bending area S3, and at the same time reduces the tension, so as to avoid excessive tension and make it difficult to be bent.
  • any two adjacent second support blocks 630 are respectively provided with a first abutment portion 631 and a second abutment portion 632 , and in a flattened state, any two adjacent second support blocks 630 pass through the first abutting portion 632 .
  • a resisting portion 631 is resisted by the second resisting portion 632 , and the plurality of second supporting blocks 630 can jointly form a supporting surface (not shown) parallel to the first planar area S1 and the second planar area S2 .
  • both the first abutting portion 631 and the second abutting portion 632 are planes perpendicular to the supporting surface, so that in the flattened state, the first abutting portion 631 and the second abutting portion 632 are just face-to-face. Combined to form a stable resistance.
  • any two adjacent second support blocks 630 are respectively provided with a first magnetic attraction 633 and a second magnetic attraction 634 , and the first magnetic attraction 633 and the second magnetic attraction 634 are magnetically attracted to each other.
  • the plurality of second support blocks 630 can be connected to each other to have higher support strength.
  • any two adjacent second support blocks 630 are respectively provided with a third abutment portion 635 and a fourth abutment portion 636 , and in the outwardly folded state, any two adjacent second support blocks 630 pass through the third abutment portion 636 .
  • the abutting portion 635 is abutted against the fourth abutting portion 636, and the plurality of second supporting blocks 630 jointly form an arcuate support surface (not shown) capable of supporting the bending area S3, under the support of the arcuate support surface , the bending area S3 is smoothly connected with the first planar area S1 and the second planar area S2.
  • the plurality of second support blocks 630 abut against each other to form a stable support for the bending area S3, and at the same time avoid the gap between the bending area S3 and the first plane area S1 and the second plane area S2. Creases affect the display effect.
  • the third abutting portion 635 and the fourth abutting portion 636 are planes parallel to the radial direction of the arc-shaped supporting surface, so that in the outwardly folded state, the third abutting portion 635 and the fourth abutting portion 636 are face to face. Fit together to form a stable resistance.
  • both the third abutting portion 635 and the fourth abutting portion 636 are sloped, and they are mirror images of a plane defined by the thickness direction and the width direction of the flexible display screen 300 .
  • the foldable electronic device 10 further includes an elastic elastic support member 640, the elastic support member 640 is disposed between the second support structure and the bending area S3, and is used to support the bending area S3.
  • the elastic support member 640 can increase the rigidity of the bending area S3, so that the bending area S3 has better flattening stiffness and outer bending arc bending stiffness.
  • the elastic support member 640 can isolate the flexible display screen 300 from the second support structure, avoiding excessive The relative position change between the two second support blocks 630 may cause damage to the flexible display screen 300 .
  • the elastic support member 640 is in the shape of a sheet, so that the elastic support member 640 can provide a better supporting effect and provide a better tactile feeling when touching the flexible display screen 300 .
  • the second support structure includes a plurality of strip-shaped second support blocks 630
  • the second support blocks 630 will form strip-shaped wear marks on the flexible display screen 300 during the repeated state transition of the flexible display screen 300, The possibility of wear marks on the flexible display screen 300 can also be reduced by providing the sheet-shaped elastic support member 640 .
  • the elastic support member 640 may be in the form of a shrapnel, a memory alloy, or the like.
  • the flexible display screen 300 includes a protective layer 310 , a functional layer 320 and a buffer layer 330 which are sequentially stacked from outside to inside.
  • the protective layer 310 is a film layer that protects the functional layer 320 from the outside of the functional layer 320
  • the functional layer 320 is a film layer that has a display function in the flexible display screen 300
  • the buffer layer 330 is a film layer that protects the functional layer 320 inside the functional layer 320.
  • Layer 320 acts as a protective membrane layer.
  • the protection layer 310 has a transparent structure and can allow light to pass through. It can be understood that the light emitted by the functional layer 320 needs to pass through the protective layer 310 and enter the user's eyes to form an image.
  • the protective layer 310 needs to be selected from scratch-resistant and puncture-resistant materials, such as PET (Polyethylene terephthalate), UTG (Ultra Thin Glass) or PI (Polyimide).
  • the functional layer 320 is a flexible panel that can be bent and deformed.
  • the functional layer 320 is a stacked layer with display and touch functions, such as flexible OLED (Organic Light-Emitting Diode) or Micro LED.
  • the elastic deformation capacity of the buffer layer 330 in a direction parallel to its plane is smaller than that in a direction perpendicular to its plane. It can be understood that the buffer layer 330 has a small elastic deformation capability and a high elastic modulus in a direction parallel to its plane, so it is not easy to deform, thereby avoiding expansion and contraction when the screen adjustment assembly 500 drives the flexible display screen 300 to move relative to the shell assembly 100 , that is, keep the dimensions of the flexible display 300 along its lengthwise and widthwise directions unchanged as much as possible.
  • the buffer layer 330 has a strong elastic deformation capacity in the direction perpendicular to the plane where it is located, that is, it has a large deformation capacity and can play a buffering role, so that it can not only absorb the uneven structural features of the functional layer 320 inside, but also improve the performance of the functional layer 320.
  • the degree of flatness, but also part of the stress can be released during the bending process of the bending area S3, and the deformation of the buffer layer 330 can absorb the change of the gap between two adjacent second support blocks 630 in different forms. influence, and improve the service life of the flexible display 300.
  • the buffer layer 330 can be buffer foam or TPU (Thermoplastic polyurethanes).
  • the first abutting portion 631 is abutted against the second abutting portion 632, while in the process of transitioning to the outwardly folded state, the two adjacent second support blocks 630 will be under the action of force. and a gap is formed on the side close to the flexible display 300 until the third abutting portion 635 and the fourth abutting portion 636 are abutted against each other.
  • the deformation of the buffer layer 330 can absorb the corresponding The effect of the change of the gap between two adjacent second support blocks 630 on the functional layer 320 .
  • the foldable electronic device 10 includes a transmission mechanism 700, the transmission mechanism 700 includes a cover 710, a first link assembly 720 and a second link assembly 730, the first The link assembly 720 connects the cover 710 and the first housing 110, the second link assembly 730 connects the cover 710 and the second housing 130, and the first link assembly 720 and the second link assembly 730 are respectively connected to the cover 710; when the flexible display 300 is in the flattened state, the first casing 110 and the second casing 130 are respectively located at the two ends of the cover 710; when the flexible display 300 is in the folded state, the first casing 110 Both the first housing 110 and the second housing 130 are located on one side of the inner side of the cover 710 , and when the flexible display 300 is in a folded state, the first housing 110 and the second housing 130 are located on one side of the outer side of the cover 710 .
  • the transmission mechanism 700 is connected between the first housing 110 and the second housing 130, and limits the trajectory of the relative movement of the first housing 110 and the second housing 130, so that the flexible display screen 300 can realize Steady state transitions.
  • the cover 710 corresponds to the bending area S3 , and is substantially flat and has an inner side 711 and an outer side 712 opposite to the inner side 711 .
  • the inner side 711 is specifically the side of the cover 710 facing the bending area S3
  • the outer side 712 is the side of the cover 710 facing away from the bending area S3 .
  • the first housing 110 and the second housing 130 are in a stacked state, and both are located on the side of the inner side 711 .
  • the outer side 712 becomes the side of the foldable electronic device 10 .
  • the first housing 110 and the second housing 130 are in a stacked state, and both are located on the side of the outer surface 712.
  • the transmission mechanism 700 is completely covered by the flexible display screen 300. It cannot be exposed, and the bending area S3 becomes the side of the foldable electronic device 10 .
  • the first housing 110 includes a first support body 111 and a first protection body 112 connected to the first support body 111 , the first planar area S1 is located on the first support body 111 , and inside the first housing 110 along the vertical In the direction of the first plane area S1, the first support body 111 and the first protection body 112 are respectively provided with a first connecting portion 113 and a second connecting portion 114 opposite to each other;
  • the first connecting rod assembly 720 includes a first connecting rod 721 and The second connecting rod 722, the two ends of the first connecting rod 721 are rotatably connected with the first connecting part 113 and the cover 710 respectively, one end of the second connecting rod 722 is rotatably connected with the cover 710, and the other end is connected with the second connecting part 114 Slidingly connected in a direction parallel to the first planar area S1.
  • the second housing 130 includes a second support body 131 and a second protection body 132 connected to the second support body 131.
  • the second planar area S2 is located on the second support body 131, and inside the second housing 130 is perpendicular to the second In the direction of the plane area S2, the second support body 131 and the second protection body 132 are respectively provided with a third connection portion 133 and a fourth connection portion 134 opposite to each other.
  • the second connecting rod assembly 730 includes a third connecting rod 731 and a fourth connecting rod 732. Both ends of the third connecting rod 731 are rotatably connected to the third connecting portion 133 and the cover 710 respectively.
  • the cover 710 is rotatably connected, and the other end is slidably connected to the fourth connecting portion 134 along a direction parallel to the second planar area S2.
  • connection between the second housing 130 and the transmission mechanism 700 and the connection between the first housing 110 and the transmission mechanism 700 are consistent, only the connection between the first housing 110 and the transmission mechanism 700 will be described in detail below.
  • FIG. 11 it is a schematic diagram of the connection relationship between the transmission mechanism 700 and the first housing 110 .
  • the rotational connection between the first connecting rod 721 and the cover 710 constitutes a rotating pair B
  • the rotating connection between the second connecting rod 722 and the blocking cover 710 constitutes a rotating pair A
  • the first connecting rod 721 and the second connecting rod 721 form a rotating pair B.
  • the rotational connection of a connecting part 113 constitutes a rotating pair C
  • the sliding connection between the second connecting rod 722 and the second connecting part 114 constitutes a sliding pair D.
  • a and B located at the blocking cover 710 are set as fixed ends, and then C and D are At the mobile end, the shapes of the first connecting rod 721 and the second connecting rod 722 are not limited, and it is only necessary that the first connecting rod 721 and the second connecting rod 721 and the second connecting rod be The rods 722 do not interfere with each other and have reliable strength, and the cover 710 does not interfere with the first connecting rod 721 and the second connecting rod 722 .
  • the sliding pair D limits the rotation angle of the first casing 110 , so that the rotation angle of the first casing 110 relative to the cover 710 is the same as the rotation angle of the sliding pair D.
  • the rotation pair C limits the distance between the first housing 110 and the cover 710 during rotation, that is, the distance between point C on the first housing 110 and point B on the cover 710 is constant. In this way, the movement trajectory of the first housing 110 relative to the cover 710 is limited.
  • the connection method between the third connecting rod 731 and the fourth connecting rod 732 and the second housing 130 can make the second housing 130
  • the movement trajectory of the relative blocking cover 710 is limited, so that the first casing 110 and the second casing 130 are relatively rotated along the predetermined trajectory.
  • the first connecting rod 721 is rotatably connected to the first connecting part 113, and there must be a rotating shaft between the two;
  • the third connecting rod 731 is rotatably connected to the third connecting part 133, and there must also be a rotating shaft between the two.
  • the sensor can obtain the angle information between the first planar area S1 and the second planar area S2 by detecting the relative rotation angle information of the two rotating shafts.
  • first support body 111 and the first protection body 112 they are connected at the edge and spaced apart in the middle area, thereby jointly forming a hollow cavity, so that the first shell
  • the interior of the body 110 can accommodate associated devices, such as screen adjustment components, circuit boards, and power supplies.
  • second supporting body 131 and the second protecting body 132 they are connected at the edge and spaced apart in the middle area, so as to jointly form a hollow cavity, so that the interior of the second housing 130 can accommodate related devices, such as screen adjustment. components, circuit boards and power supplies etc.
  • the flexible seal 830 can also be deformed as the first housing 110 rotates relative to the cover 710 and the second housing 130 rotates relative to the cover 710 while performing a sealing function.
  • the first connecting rod 721 and the second connecting rod 722 are respectively connected to two spaced positions on the cover 710 , and both can rotate 180° relative to the cover 710
  • the third connecting rod 731 and the fourth connecting rod 732 are respectively connected to two spaced positions on the cover 710, and both of them can rotate 180° relative to the cover 710, so that the setting can just meet the state transition requirements of the flexible display screen 300 .

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Electroluminescent Light Sources (AREA)
  • Telephone Set Structure (AREA)

Abstract

La présente invention concerne un dispositif électronique pliable (10), comprenant un ensemble boîtier (100) et un écran d'affichage flexible (300). L'écran d'affichage flexible (300) est disposé sur l'ensemble boîtier (100), l'écran d'affichage flexible (300) est doté d'une région efficace (S) pour effectuer l'affichage, et la région efficace (S) comprend une première région planaire (S1) et une seconde région planaire (S2) reliée à la première région planaire (S1). Lorsque l'ensemble boîtier (100) passe d'un état plié à un état déplié, l'écran d'affichage flexible (300) présente un état plié vers l'intérieur, un état aplati et un état plié vers l'extérieur, et l'angle inclus entre la première région planaire (S1) et la seconde région planaire (S2) est séquentiellement de 0°, 180° et 360° dans l'état plié vers l'intérieur, l'état plié aplati et l'état plié vers l'extérieur.
PCT/CN2022/127282 2021-12-31 2022-10-25 Dispositif électronique pliable WO2023124463A1 (fr)

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CN202111673679.7 2021-12-31
CN202111673679.7A CN114285924A (zh) 2021-12-31 2021-12-31 可折叠电子设备

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Publication number Priority date Publication date Assignee Title
CN114285924A (zh) * 2021-12-31 2022-04-05 Oppo广东移动通信有限公司 可折叠电子设备
CN117189759A (zh) * 2022-05-31 2023-12-08 Oppo广东移动通信有限公司 转轴机构、折叠壳体及电子设备
CN115331567B (zh) * 2022-09-14 2023-10-24 合肥维信诺科技有限公司 折叠支撑结构件及显示装置

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CN212484202U (zh) * 2020-04-30 2021-02-05 华为技术有限公司 支撑件、显示模组及电子设备
CN113890919A (zh) * 2021-11-19 2022-01-04 维沃移动通信有限公司 电子设备
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CN106157819A (zh) * 2016-09-26 2016-11-23 京东方科技集团股份有限公司 一种显示装置
CN111357261A (zh) * 2018-08-07 2020-06-30 华为技术有限公司 转轴连接机构和可折叠的设备
CN212484202U (zh) * 2020-04-30 2021-02-05 华为技术有限公司 支撑件、显示模组及电子设备
CN111862824A (zh) * 2020-08-27 2020-10-30 京东方科技集团股份有限公司 显示组件及显示装置
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