WO2018082338A1 - 折叠式柔性屏的支撑装置和使用该支撑装置的显示装置 - Google Patents

折叠式柔性屏的支撑装置和使用该支撑装置的显示装置 Download PDF

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Publication number
WO2018082338A1
WO2018082338A1 PCT/CN2017/092795 CN2017092795W WO2018082338A1 WO 2018082338 A1 WO2018082338 A1 WO 2018082338A1 CN 2017092795 W CN2017092795 W CN 2017092795W WO 2018082338 A1 WO2018082338 A1 WO 2018082338A1
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WO
WIPO (PCT)
Prior art keywords
support plate
flexible screen
rotating shaft
support
sliding groove
Prior art date
Application number
PCT/CN2017/092795
Other languages
English (en)
French (fr)
Inventor
祝尚杰
Original Assignee
京东方科技集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/778,254 priority Critical patent/US10487550B2/en
Publication of WO2018082338A1 publication Critical patent/WO2018082338A1/zh

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D7/00—Hinges or pivots of special construction
    • E05D7/0009—Adjustable hinges
    • E05D7/0018—Adjustable hinges at the hinge axis
    • E05D7/0045—Adjustable hinges at the hinge axis in a radial direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/38—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by folding, e.g. pivoting or scissors tong mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G06F1/1618—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position the display being foldable up to the back of the other housing with a single degree of freedom, e.g. by 360° rotation over the axis defined by the rear edge of the base enclosure
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0226—Hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/06—Hinges with pins with two or more pins
    • E05D3/12—Hinges with pins with two or more pins with two parallel pins and one arm
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/06—Hinges with pins with two or more pins
    • E05D3/18—Hinges with pins with two or more pins with sliding pins or guides
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D7/00—Hinges or pivots of special construction
    • E05D7/009—Elongate hinges, e.g. piano-hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2999/00—Subject-matter not otherwise provided for in this subclass

Definitions

  • the present disclosure belongs to the field of display technologies, and in particular, to a support device for a folding flexible screen and a display device using the same.
  • Figures 1-3 schematically illustrate the manner in which the current folding display device is folded.
  • the flexible screen 12 is fixed to the two support plates 11a and 11b.
  • the support plate 11a and the support plate 11b are connected by a rotating shaft 13.
  • the support plate 11a and the support plate 11b are rotatable around the rotation shaft 13.
  • the gap G between the support plate 11a and the support plate 11b is fixed.
  • the gap G is too small, the flexible screen 12 in the folded state is subjected to a large tensile force; and when the gap G is excessively large, the flexible screen 12 in the folded state cannot completely contact the support plate 11a and the support plate 11b.
  • the flexible screen 12 may be uneven in the unfolded state.
  • the present disclosure provides a support device and a display device of a foldable flexible screen capable of changing a radius of rotation.
  • a supporting device for a folding flexible screen comprising:
  • the first support plate and the second support plate are configured to support and fix a flexible screen
  • At least one set of rotating shaft assemblies configured to connect the first support plate and the second support plate and enable the first support plate and the second support plate to rotate relative to each other,
  • one of the first support plate and the second support plate is provided with a sliding slot, and one side of the rotating shaft assembly is provided with a rotating shaft;
  • the rotating shaft is slidable and rotatable in the sliding groove
  • the sliding groove extends in a direction that is not perpendicular to the longitudinal direction of the support plate.
  • the rotating shaft assembly further comprises:
  • the first rotating body is located between the first supporting plate and the second supporting plate and is fixedly connected to the first supporting plate;
  • the third rotating body being located between the first supporting plate and the second supporting plate and fixedly connected to the second supporting plate;
  • a second swivel configured to connect the first swivel and the third swivel and enable the first swivel and the third swivel to rotate relative to each other
  • first rotating body is provided with a first sliding groove
  • third rotating body is provided with a second sliding groove
  • Two sides of the second rotating body are respectively provided with a first rotating shaft and a second rotating shaft;
  • the first rotating shaft is slidable and rotatable in the first sliding groove
  • the second rotating shaft is slidable and rotatable in the second sliding groove
  • the extending directions of the first sliding groove and the second sliding groove are not perpendicular to the longitudinal direction of the supporting plate.
  • the sliding groove extends in a direction parallel to the longitudinal direction of the support plate.
  • the first sliding groove and the second sliding groove extend in a direction parallel to the longitudinal direction of the supporting plate.
  • the first rotating body and the third rotating body are connected to the flexible screen
  • the touched surface is a curved surface.
  • the curved faces of the first swivel and the third swivel are both 90°, and the radius of the curved face of the first swivel is equal to the third swivel The radius of the curved face.
  • the distance between the first rotating shaft and the flexible screen is equal to the distance between the second rotating shaft and the flexible screen.
  • the length of the first slide is equal to the length of the second slide.
  • the present disclosure also provides a display device including a flexible screen and a support device configured to support and secure the flexible screen.
  • the second support plate of the support device of the folding flexible screen is laterally movable relative to the first support plate, thereby changing the relative position of the rotational axis of the rotary shaft assembly and the second support plate. Further, by changing the relative position of the rotating shaft of the rotating shaft assembly and the second supporting plate, the radius of rotation of the second supporting plate can be adjusted. In this way, when the first support plate and the second support plate rotate relative to each other, the tensile force to the flexible screen can be reduced, and at the same time, the flexible screen in the folded state can completely contact (closely) the first support plate and the second support. board. In addition, since the gap between the first support plate and the second support plate is adjustable, the flexible screen can be kept flat.
  • the support device of the foldable flexible screen of the present disclosure is applicable to various flexible display devices.
  • 1 to 3 are schematic structural views of a support device of a conventional folding flexible screen
  • FIG. 4a is a schematic structural view of a supporting device of a folding flexible screen according to a first embodiment of the present disclosure in an unfolded state;
  • FIG. 4b is a schematic structural view of a supporting device of a folding flexible screen in an unfolded state according to a second embodiment of the present disclosure
  • FIG. 5 is a schematic structural view of a supporting device of a folding flexible screen in an unfolded state according to a third embodiment of the present disclosure
  • Figure 6 is a partial enlarged view of the rotating shaft assembly of the supporting device of the folding flexible screen shown in Figure 5;
  • FIG. 7 is a schematic structural view of a supporting device of a folding flexible screen in a folded state according to a third embodiment of the present disclosure
  • FIG. 8 is a plan view schematically showing a supporting device of a folding type flexible screen in an unfolded state according to a third embodiment of the present disclosure
  • FIG. 9 is a plan view schematically showing a supporting device of a folding type flexible screen in an unfolded state according to a fourth embodiment of the present disclosure.
  • Figure 10 is a perspective view of a supporting device of a folding type flexible screen in an unfolded state according to a fourth embodiment of the present disclosure
  • Figure 11 is a perspective view of a supporting device of a folding type flexible screen in a folded state according to a fourth embodiment of the present disclosure
  • Figure 12 is a partial enlarged view of the rotating shaft assembly of the supporting device of the folding flexible screen according to the third and fourth embodiments of the present disclosure in an unfolded state;
  • Fig. 13 is a partially enlarged view of the hinge assembly of the supporting device of the folding type flexible screen according to the third and fourth embodiments of the present disclosure in a folded state.
  • FIG. 4a is a schematic structural view of a supporting device of a folding type flexible screen in an unfolded state according to a first embodiment of the present disclosure.
  • a support device for a folding flexible screen is provided.
  • the supporting device of the folding flexible screen comprises: a first supporting plate 21 and a second supporting plate 22, the first supporting plate 21 and the second supporting plate 22 being configured to support and fix the flexibility a screen 12; and at least one set of rotating shaft assemblies 3 configured to connect the first support plate 21 and the second support plate 22 and to make the first support plate 21 and the second support plate 22 is rotatable relative to each other, wherein one of the first support plate 21 and the second support plate 22 (the second support plate 22 in Fig.
  • the shaft assembly 3 One side is provided with a rotating shaft 42; the rotating shaft 42 can be in the sliding The moving groove 24 slides and rotates; and the sliding groove 24 extends in a direction parallel to the longitudinal direction of the support plate.
  • the second support plate 22 of the supporting device of the folding type flexible screen can be laterally moved with respect to the first support plate 21, thereby changing the relative position of the rotating shaft 42 of the rotating shaft assembly 3 and the second supporting plate 22. Further, by changing the relative position of the rotating shaft 42 of the rotating shaft assembly 3 and the second supporting plate 22, the radius of rotation of the second supporting plate 22 can be adjusted.
  • the first support plate 21 and the second support plate 22 are relatively rotated, the tensile force to the flexible screen 12 can be reduced, while the flexible screen 12 in the folded state can completely contact (close to) the first support plate. 21 and a second support plate 22.
  • the gap between the first support plate 21 and the second support plate 22 is adjustable, the flexible screen 12 can be kept flat.
  • the support device of the foldable flexible screen 12 of the present disclosure is applicable to various flexible display devices.
  • the sliding groove can be disposed on the first support plate 21 such that the first support plate 21 can move laterally relative to the second support plate 22.
  • FIG. 4b is a schematic structural view of a supporting device of a folding flexible screen in an unfolded state according to a second embodiment of the present disclosure. Different from the first embodiment, the extending direction of the sliding groove 24 is inclined with respect to the longitudinal direction of the support plate on which it is placed.
  • first support plate 21 and/or the second support plate 22 can be laterally moved as long as the sliding groove 24 has a component extending along the length direction of the support plate in which it is located, thereby changing the first support plate 21 and / or the radius of rotation of the second support plate 22. That is, the direction in which the sliding groove 24 extends cannot be perpendicular to the longitudinal direction of the support plate on which it is placed.
  • the rotating shaft assembly 3 of the supporting device of the folding flexible screen in the embodiment further includes: a first rotating body 31, and the first rotating body 31 is located at the first support Between the board 21 and the second support board 22 and The first support plate 21 is fixedly connected; the third rotating body 33 is located between the first support plate 21 and the second support plate 22 and is fixedly connected with the second support plate 22; and the second rotating body 32.
  • the second rotating body 32 is configured to connect the first rotating body 31 and the third rotating body 33 and enable the first rotating body 31 and the third rotating body 33 to rotate relative to each other, wherein
  • the first rotating body 31 is provided with a first sliding groove 23, and the third rotating body 33 is provided with a second sliding groove 24;
  • the two sides of the second rotating body 32 are respectively provided with a first rotating shaft 41 and a second rotating shaft 42;
  • the first rotating shaft 41 is slidable and rotatable in the first sliding groove 23, and the second rotating shaft 42 is slidable and rotatable in the second sliding groove 24;
  • the first sliding groove Both the extending direction of the second sliding groove 24 and the second sliding groove 24 are not perpendicular to the longitudinal direction of the supporting plate.
  • the first sliding groove 23 and the second sliding groove 24 extend in a direction parallel to the longitudinal direction of the support plate.
  • the flexible screen 12 is fixed to the first support plate 21 and the second support plate 22, but is not fixed to the rotating shaft assembly 3 between the first support plate 21 and the second support plate 22 (including the first rotating body) 31.
  • the first rotating shaft 41 and the second rotating shaft 42 can slide and rotate in the first sliding groove 23 and the second sliding groove 24, respectively, thereby changing the first supporting plate 21 and the second The radius of rotation of the support plate 22.
  • the tensile force to the flexible screen 12 can be reduced, while the flexible screen 12 in the folded state can completely contact (close to) the first support plate. 21 and a second support plate 22.
  • the gap between the first support plate 21 and the second support plate 22 is adjustable, the flexible screen 12 can be kept flat.
  • the radius of rotation of the first support plate 21 and the second support plate 22 is different from the radius of rotation of the flexible screen 12 during folding or unfolding, by changing the first rotating shaft 41 and the second rotating shaft 42 At the positions of the first support plate 21 and the second support plate 22, the radius of rotation of the first support plate 21 and the second support plate 22 can be adjusted.
  • the first rotating shaft 41 and the second rotating shaft 42 are moved from the first position u to the second position v.
  • the first support plate 21 and the second support plate 22 are close to each other and are rotated relative to each other. move.
  • the support device reaches a folded state as shown in FIG.
  • the faces of the first and third swivels 31 and 33 for contacting the flexible screen 12 are curved faces.
  • the friction between the first swivel 31 and the third swivel 33 and the flexible screen 12 can be reduced without causing damage to the flexible screen 12.
  • FIG. 9 to 11 illustrate a supporting device of a folding type flexible screen according to a fourth embodiment of the present disclosure.
  • a plurality of sets of the shaft assemblies 3 are employed in the supporting device of the folding type flexible screen of the fourth embodiment.
  • the arcs of the first rotating body 31 and the third rotating body 33 have an arc of 90°, and the curved shape of the first rotating body 31
  • the radius of the face is equal to the radius of the curved face of the third swivel 33.
  • the distance between the first rotating shaft 41 and the flexible screen 12 is equal to the distance between the second rotating shaft 42 and the flexible screen 12.
  • the length of the second rotating body 32 is less than or equal to the radius R of the curved surface of the first rotating body 31 or the third rotating body 33.
  • the length of the first slide 23 is equal to the length of the second slide 24.
  • the distance between the first rotating shaft 41 and the second rotating shaft 42 is 2R-2r, where R is the radius R of the curved surface of the first rotating body 31 or the third rotating body 33, and r It is the distance between the first rotating shaft 41 or the second rotating shaft 42 and the flexible screen 12.
  • the present disclosure also provides a display device including a flexible screen and a structure A support device that supports and secures the flexible screen.
  • the display device may be any product or component having a display function, such as an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the position or specific size of the first rotating body and the third rotating body relative to the second rotating body can be adjusted as needed, and the size of the first rotating shaft or the second rotating shaft can be changed according to actual conditions.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Microelectronics & Electronic Packaging (AREA)
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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种折叠式柔性屏的支撑装置和使用该支撑装置的显示装置。该支撑装置包括：构造成支撑并固定柔性屏（12）的第一支撑板（21）和第二支撑板（22）；以及转轴组件（3），所述转轴组件（3）构造成连接所述第一支撑板（21）和所述第二支撑板（22）并且使所述第一支撑板（21）和所述第二支撑板（22）能够相对于彼此转动。所述第一支撑板（21）和所述第二支撑板（22）之一设置有滑动槽，而所述转轴组件（3）的一侧设置有转动轴；所述转动轴能够在所述滑动槽中滑动和转动；并且所述滑动槽的延伸方向与其所在支撑板的长度方向不垂直。该折叠式柔性屏的支撑装置可以减小对柔性屏（12）的拉伸力，同时在折叠状态下的柔性屏（12）能够紧贴第一支撑板（21）和第二支撑板（22）。另外，由于第一支撑板（21）与第二支撑板（22）之间的间隙是可调节的，所以可以保持柔性屏（12）平整。

Description

折叠式柔性屏的支撑装置和使用该支撑装置的显示装置 技术领域
本公开属于显示技术领域，具体涉及一种折叠式柔性屏的支撑装置和使用该支撑装置的显示装置。
背景技术
图1-图3示意性地示出了目前的折叠式显示装置的折叠方式。如图1-图3所示，柔性屏12被固定在两块支撑板11a和11b上。支撑板11a与支撑板11b之间通过转轴13连接。为了实现折叠和展开状态，支撑板11a与支撑板11b可以围绕转轴13旋转。
发明人发现现有技术中的折叠式显示装置至少存在如下问题：
1.支撑板11a与支撑板11b围绕转轴13旋转时，由于支撑板11a和支撑板11b的旋转半径与柔性屏12的旋转半径不同，因此柔性屏12会受到拉伸力的作用。
2.支撑板11a与支撑板11b之间的间隙G是固定的。当间隙G过小时，处于折叠状态的柔性屏12会受到较大的拉伸力；而当间隙G过大时，在折叠状态下的柔性屏12不能完全接触支撑板11a和支撑板11b。
3.在折叠式显示装置使用一段时间之后，由于支撑板11a与支撑板11b之间的间隙G是固定的，柔性屏12在展开状态下可能会不平整。
发明内容
针对现有的折叠式显示装置的问题，本公开提供一种能够改变旋转半径的折叠式柔性屏的支撑装置和显示装置。
为了解决上述问题，本公开提供了一种折叠式柔性屏的支撑装置，包括：
第一支撑板和第二支撑板，
所述第一支撑板和所述第二支撑板构造成支撑并固定柔性屏；以及
至少一组转轴组件，所述转轴组件构造成连接所述第一支撑板和所述第二支撑板并且使所述第一支撑板和所述第二支撑板能够相对于彼此转动，
其中，所述第一支撑板和所述第二支撑板中的一者设置有滑动槽，而所述转轴组件的一侧设置有转动轴；
所述转动轴能够在所述滑动槽中滑动和转动；并且
所述滑动槽的延伸方向与其所在支撑板的长度方向不垂直。
优选的是，所述转轴组件还包括：
第一转体，所述第一转体位于第一支撑板与第二支撑板之间并且与第一支撑板固定连接；
第三转体，所述第三转体位于第一支撑板与第二支撑板之间并且与第二支撑板固定连接；以及
第二转体，所述第二转体构造成连接所述第一转体与第三转体并且使所述第一转体与第三转体能够相对于彼此转动，
其中，所述第一转体设置有第一滑动槽，而所述第三转体设置有第二滑动槽；
所述第二转体的两侧分别设置有第一转动轴和第二转动轴；
所述第一转动轴能够在所述第一滑动槽中滑动和转动，而第二转动轴能够在所述第二滑动槽中滑动和转动；并且
所述第一滑动槽和所述第二滑动槽的延伸方向均与其所在支撑板的长度方向不垂直。
优选的是，所述滑动槽的延伸方向与其所在支撑板的长度方向平行。
优选的是，所述第一滑动槽和所述第二滑动槽的延伸方向均与其所在支撑板的长度方向平行。
优选的是，所述第一转体和所述第三转体的用于与柔性屏接 触的面为弧形面。
优选的是，所述第一转体和所述第三转体的所述弧形面的弧度均为90°，并且所述第一转体的弧形面的半径等于所述第三转体的弧形面的半径。
优选的是，所述第一转动轴与柔性屏之间的距离等于所述第二转动轴与柔性屏之间的距离。
优选的是，所述第一滑道的长度与所述第二滑道的长度相等。
本公开还提供一种显示装置，包括柔性屏以及构造成支撑和固定所述柔性屏的支撑装置。
根据本公开，折叠式柔性屏的支撑装置的第二支撑板能够相对于第一支撑板横向移动，从而改变转轴组件的转动轴与第二支撑板的相对位置。进一步，通过改变转轴组件的转动轴与第二支撑板的相对位置，可以调节第二支撑板的旋转半径。这样，在第一支撑板与第二支撑板相对转动时，可以减小对柔性屏的拉伸力，同时在折叠状态下的柔性屏能够完全接触(紧贴)第一支撑板和第二支撑板。另外，由于第一支撑板与第二支撑板之间的间隙是可调节的，所以可以保持柔性屏平整。本公开的折叠式柔性屏的支撑装置适用于各种柔性显示装置。
附图说明
图1-图3为现有的折叠式柔性屏的支撑装置的结构示意图；
图4a为根据本公开的第一实施例的折叠式柔性屏的支撑装置在展开状态下的结构示意图；
图4b为根据本公开的第二实施例的折叠式柔性屏的支撑装置在展开状态下的结构示意图；
图5为根据本公开的第三实施例的折叠式柔性屏的支撑装置在展开状态下的结构示意图；
图6为图5所示的折叠式柔性屏的支撑装置的转轴组件的局部放大图；
图7为根据本公开的第三实施例的折叠式柔性屏的支撑装置在折叠状态下的结构示意图；
图8为根据本公开的第三实施例的折叠式柔性屏的支撑装置在展开状态下的平面示意图；
图9为根据本公开的第四实施例的折叠式柔性屏的支撑装置在展开状态下的平面示意图；
图10为根据本公开的第四实施例的折叠式柔性屏的支撑装置在展开状态下的立体图；
图11为根据本公开的第四实施例的折叠式柔性屏的支撑装置在折叠状态下的立体图；
图12为根据本公开的第三和第四实施例的折叠式柔性屏的支撑装置的转轴组件在展开状态下的局部放大图；以及
图13为根据本公开的第三和第四实施例的折叠式柔性屏的支撑装置的转轴组件在折叠状态下的局部放大图。
具体实施方式
为使本领域技术人员更好地理解本公开的技术方案，下面结合附图和具体实施方式对本公开作进一步详细描述。
第一实施例：
图4a为根据本公开的第一实施例的折叠式柔性屏的支撑装置在展开状态下的结构示意图。在本实施例中，提供了一种折叠式柔性屏的支撑装置。如图4a所示，所述折叠式柔性屏的支撑装置包括：第一支撑板21和第二支撑板22，所述第一支撑板21和所述第二支撑板22构造成支撑并固定柔性屏12；以及至少一组转轴组件3，所述转轴组件3构造成连接所述第一支撑板21和所述第二支撑板22并且使所述第一支撑板21和所述第二支撑板22能够相对于彼此转动，其中，所述第一支撑板21和所述第二支撑板22中的一者(在图4a中为第二支撑板22)设置有滑动槽24，而转轴组件3的一侧设置有转动轴42；所述转动轴42能够在所述滑 动槽24中滑动和转动；并且所述滑动槽24的延伸方向与其所在支撑板的长度方向平行。
根据本实施例，折叠式柔性屏的支撑装置的第二支撑板22能够相对于第一支撑板21横向移动，从而改变转轴组件3的转动轴42与第二支撑板22的相对位置。进一步，通过改变转轴组件3的转动轴42与第二支撑板22的相对位置，可以调节第二支撑板22的旋转半径。这样，在第一支撑板21与第二支撑板22相对转动时，可以减小对柔性屏12的拉伸力，同时在折叠状态下的柔性屏12能够完全接触(紧贴)第一支撑板21和第二支撑板22。另外，由于第一支撑板21与第二支撑板22之间的间隙是可调节的，所以可以保持柔性屏12平整。本公开的折叠式柔性屏12的支撑装置适用于各种柔性显示装置。
容易理解的是，滑动槽可以设置在第一支撑板21上，使得第一支撑板21能够相对于第二支撑板22横向移动。
第二实施例：
图4b为根据本公开的第二实施例的折叠式柔性屏的支撑装置在展开状态下的结构示意图。与第一实施例不同的是，滑动槽24的延伸方向相对于其所在支撑板的长度方向是倾斜的。
容易理解的是，只要滑动槽24具有沿着其所在支撑板的长度方向延伸的分量，就可以使第一支撑板21和/或第二支撑板22横向移动，从而改变第一支撑板21和/或第二支撑板22的转动半径。也就是说，滑动槽24的延伸方向不能与其所在支撑板的长度方向垂直。
第三实施例：
图5-图8示出了根据本公开的第三实施例的折叠式柔性屏的支撑装置。与第一实施例和第二实施例相比，在本实施例中的折叠式柔性屏的支撑装置的转轴组件3进一步包括：第一转体31，所述第一转体31位于第一支撑板21与第二支撑板22之间并且与 第一支撑板21固定连接；第三转体33，所述第三转体33位于第一支撑板21与第二支撑板22之间并且与第二支撑板22固定连接；以及第二转体32，所述第二转体32构造成连接所述第一转体31与第三转体33并且使所述第一转体31与第三转体33能够相对于彼此转动，其中，所述第一转体31设置有第一滑动槽23，而第三转体33设置有第二滑动槽24；所述第二转体32的两侧分别设置有第一转动轴41和第二转动轴42；所述第一转动轴41能够在所述第一滑动槽23中滑动和转动，而第二转动轴42能够在所述第二滑动槽24中滑动和转动；并且所述第一滑动槽23和所述第二滑动槽24的延伸方向均与其所在支撑板的长度方向不垂直。。优选的是，所述第一滑动槽23和所述第二滑动槽24的延伸方向与其所在支撑板的长度方向平行。
根据本实施例，柔性屏12固定在第一支撑板21和第二支撑板22上，但是不固定在第一支撑板21与第二支撑板22之间的转轴组件3(包括第一转体31、第二转体32和第三转体33)上。按照这种方式，在折叠过程中，第一转动轴41和第二转动轴42能够分别在第一滑动槽23和第二滑动槽24中滑动和转动，从而改变第一支撑板21和第二支撑板22的旋转半径。这样，在第一支撑板21与第二支撑板22相对转动时，可以减小对柔性屏12的拉伸力，同时在折叠状态下的柔性屏12能够完全接触(紧贴)第一支撑板21和第二支撑板22。另外，由于第一支撑板21与第二支撑板22之间的间隙是可调节的，所以可以保持柔性屏12平整。
也就是说，虽然在折叠或展开过程中第一支撑板21和第二支撑板22的旋转半径与柔性屏12的旋转半径不同，但是，通过改变第一转动轴41和第二转动轴42相对于第一支撑板21和第二支撑板22的位置，可以调节第一支撑板21和第二支撑板22的旋转半径。具体的说，当支撑装置折叠时，如图6和图7所示，第一转动轴41与第二转动轴42从第一位置u移动到第二位置v。与此同时，第一支撑板21与第二支撑板22彼此靠近并相对于彼此转 动。最后，支撑装置达到如图7所示的折叠状态。
优选的是，如图6所示，所述第一转体31和第三转体33的用于与柔性屏12接触的面为弧形面。这样，在柔性屏12的折叠或展开的过程中，可以降低第一转体31和第三转体33与柔性屏12之间的摩擦力，同时不会造成对柔性屏12的损坏。
第四实施例：
图9-图11示出了根据本公开的第四实施例的折叠式柔性屏的支撑装置。与第三实施例不同的是，在第四实施例的折叠式柔性屏的支撑装置中采用了多组转轴组件3。
需要说明的是，当柔性屏12的面积相对较小时，在第一支撑板21与第二支撑板22之间可以仅采用一组转轴组件3，如图8所示。当柔性屏12的面积相对较大时，在第一支撑板21与第二支撑板22之间采用多组转轴组件3，如图8-图11所示。可以理解的是，第一转体31和第三转体33的长度和相对于第二转体32的位置可以根据需要进行调整。
优选的是，如图12和图13所示，所述第一转体31和所述第三转体33的弧形面的弧度均为90°，并且所述第一转体31的弧形面的半径等于所述第三转体33的弧形面的半径。
优选的是，所述第一转动轴41与柔性屏12之间的距离等于所述第二转动轴42与柔性屏12之间的距离。
如图13所示，第二转体32的长度小于或等于第一转体31或第三转体33的弧形面的半径R。
优选的是，所述第一滑道23的长度与所述第二滑道24的长度相等。
如图13所示，第一转动轴41与第二转动轴42之间的距离为2R-2r，其中R为第一转体31或第三转体33的弧形面的半径R，而r为第一转动轴41或第二转动轴42与柔性屏12之间的距离。
另一方面，本公开还提供一种显示装置，包括柔性屏以及构 造成支撑和固定所述柔性屏的支撑装置。所述显示装置可以为：电子纸、OLED面板、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
显然，上述各实施例的具体实施方式还可进行许多变化。例如：第一转体和第三转体相对于第二转体的位置或具体尺寸可以根据需要进行调整，第一转动轴或第二转动轴的尺寸可以根据实际情况进行改变。
可以理解的是，以上实施方式仅仅是为了说明本公开的原理而采用的示例性实施方式，然而本公开并不局限于此。对于本领域内的普通技术人员而言，在不脱离本公开的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本公开的保护范围。

Claims (9)

  1. 一种折叠式柔性屏的支撑装置，包括：
    第一支撑板和第二支撑板，所述第一支撑板和所述第二支撑板构造成支撑并固定柔性屏；以及
    至少一组转轴组件，所述转轴组件构造成连接所述第一支撑板和所述第二支撑板并且使所述第一支撑板和所述第二支撑板能够相对于彼此转动，
    其中，所述第一支撑板和所述第二支撑板中的一者设置有滑动槽，而所述转轴组件的一侧设置有转动轴；
    所述转动轴能够在所述滑动槽中滑动和转动；并且
    所述滑动槽的延伸方向与其所在支撑板的长度方向不垂直。
  2. 根据权利要求1所述的折叠式柔性屏的支撑装置，其中，
    所述转轴组件还包括：
    第一转体，所述第一转体位于第一支撑板与第二支撑板之间并且与第一支撑板固定连接；
    第三转体，所述第三转体位于第一支撑板与第二支撑板之间并且与第二支撑板固定连接；以及
    第二转体，所述第二转体构造成连接所述第一转体与第三转体并且使所述第一转体与第三转体能够相对于彼此转动，
    其中，所述第一转体设置有第一滑动槽，而所述第三转体设置有第二滑动槽；
    所述第二转体的两侧分别设置有第一转动轴和第二转动轴；
    所述第一转动轴能够在所述第一滑动槽中滑动和转动，而第二转动轴能够在所述第二滑动槽中滑动和转动；并且
    所述第一滑动槽和所述第二滑动槽的延伸方向均与其所在支撑板的长度方向不垂直。
  3. 根据权利要求1所述的折叠式柔性屏的支撑装置，其中， 所述滑动槽的延伸方向与其所在支撑板的长度方向平行。
  4. 根据权利要求2所述的折叠式柔性屏的支撑装置，其中，
    所述第一滑动槽和所述第二滑动槽的延伸方向均与其所在支撑板的长度方向平行。
  5. 根据权利要求2所述的折叠式柔性屏的支撑装置，其中，
    所述第一转体和所述第三转体的用于与柔性屏接触的面为弧形面。
  6. 根据权利要求5所述的折叠式柔性屏的支撑装置，其中，
    所述第一转体和所述第三转体的所述弧形面的弧度均为90°，并且所述第一转体的弧形面的半径等于所述第三转体的弧形面的半径。
  7. 根据权利要求6所述的折叠式柔性屏的支撑装置，其中，
    所述第一转动轴与柔性屏之间的距离等于所述第二转动轴与柔性屏之间的距离。
  8. 根据权利要求6所述的折叠式柔性屏的支撑装置，其中，
    所述第一滑道的长度与所述第二滑道的长度相等。
  9. 一种显示装置，包括柔性屏以及构造成支撑和固定所述柔性屏的支撑装置，其中，所述支撑装置为根据权利要求1-8中任一项所述的折叠式柔性屏的支撑装置。
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