WO2021077512A1 - 可折叠显示装置 - Google Patents

可折叠显示装置 Download PDF

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Publication number
WO2021077512A1
WO2021077512A1 PCT/CN2019/119505 CN2019119505W WO2021077512A1 WO 2021077512 A1 WO2021077512 A1 WO 2021077512A1 CN 2019119505 W CN2019119505 W CN 2019119505W WO 2021077512 A1 WO2021077512 A1 WO 2021077512A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
assembly
sub
display portion
display
Prior art date
Application number
PCT/CN2019/119505
Other languages
English (en)
French (fr)
Inventor
张卓
王芳
韩文
冯子康
Original Assignee
武汉华星光电半导体显示技术有限公司
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 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US16/767,130 priority Critical patent/US11375628B2/en
Publication of WO2021077512A1 publication Critical patent/WO2021077512A1/zh

Links

Classifications

    • 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
    • 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
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • H04M1/022—The hinge comprising two parallel pivoting axes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—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 being semiconductor devices, e.g. diodes
    • 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
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0235—Slidable or telescopic telephones, i.e. with a relative translation movement of the body parts; Telephones using a combination of translation and other relative motions of the body parts
    • H04M1/0237—Sliding mechanism with one degree of freedom
    • 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
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
    • 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

Definitions

  • the present application relates to the technical field of display panels, and in particular to a foldable display device.
  • OLED Organic Light Emitting Diode
  • OLED Organic Light Emitting Diode Display
  • Existing flexible OLED screens include foldable and rollable displays. Although the above two displays reduce the size of the display device to a certain extent, they still occupy a large space, which is not conducive to the flexibility of larger sizes.
  • the existing structural design of the connecting assembly is relatively complicated and occupies a large space, which is not conducive to saving production costs and improving production efficiency. Therefore, how to realize a flexible display device with a larger display area and more convenient carrying is an important research direction.
  • the present application provides a foldable display device.
  • a foldable display device By combining the foldable flexible display screen and the stretchable flexible display screen, a foldable display device with a larger display area and more convenient to carry is realized.
  • An embodiment of the present application provides a foldable display device, which includes a first housing provided with a first storage cavity inside, and a winding assembly provided in the first storage cavity is slidably connected to the first housing
  • the stretching component is rotatably connected; when the flexible display component located in the first receiving cavity is stretched out, the winding component provides a retractable elastic pulling force for the flexible display component.
  • the flexible display assembly includes a first display portion, a second display portion, and a third display portion that are arranged adjacent to each other in sequence;
  • the first display portion is disposed on one side of the second housing, and an end of the first display portion away from the second display portion is connected to the second housing, and the third display portion is away from One end of the second display part is connected with the winding assembly.
  • the stretching assembly and the first housing are mutually expanded and arranged, and the second housing And the stretching component are mutually expanded and arranged;
  • the flexible display assembly is laid on the same side of the second housing, the stretching assembly and the first housing, and the first display part corresponds to the second housing, and the second The display portion corresponds to the stretching assembly, and the third display portion corresponds to the first housing.
  • the stretching assembly and the first housing are arranged to overlap each other, and the second housing And the stretching assembly are folded to each other;
  • the first display portion and the second display portion are laid on the same side of the second housing and the first housing, and the first display portion corresponds to the second housing, the The second display portion corresponds to the first housing, and the third display portion is wound in the first storage cavity by the winding assembly.
  • the second housing includes a first sub-housing, a second sub-housing and located between the first sub-housing and the second sub-housing.
  • the first sub-shell is rotatably connected with the second sub-housing through the second rotating component; the first sub-housing is also connected with the first rotating component, so The first sub-housing is also rotatably connected with the stretching assembly through the first rotating assembly.
  • the first display portion includes a first sub-display portion and a second sub-display portion that are adjacently disposed, and the first sub-display portion is located in the second display portion. Between the second sub-display portion and the second sub-display portion, the first sub-display portion is provided corresponding to the first sub-housing, and the second sub-display portion is provided corresponding to the second sub-housing.
  • the stretching assembly and the first housing are mutually expanded and arranged, and the first sub-shell The body, the second sub-housing and the stretching assembly are all deployed and arranged;
  • the flexible display assembly is laid on the same side of the first sub-housing, the second sub-housing, the stretching assembly and the first
  • the first sub-housing corresponds to
  • the second sub-display portion corresponds to the second sub-housing
  • the second display portion corresponds to the stretching assembly
  • the third display portion corresponds to the first housing Body correspondence.
  • the stretching assembly and the first housing are arranged to overlap each other, and the first sub-housing
  • the second sub-housing and the first sub-housing are folded and arranged mutually;
  • the first sub-display portion, the second sub-display portion and the second display portion are laid on the same side of the second sub-shell, the first sub-shell and the first housing, And the first sub-display portion corresponds to the first sub-housing, the second sub-display portion corresponds to the second sub-housing, and the second display portion corresponds to the first housing,
  • the third display part is wound in the first receiving cavity by the winding assembly.
  • the stretching assembly, the first sub-housing and the second sub-housing It is arranged in a zigzag stack.
  • the stretching assembly and the first housing are arranged to overlap each other, and the second housing and the The stretching assembly is rotated to a preset angle setting, and the first sub-housing and the second sub-housing are mutually expanded and arranged;
  • the flexible display assembly is laid on the same side of the first housing, the first sub-housing, and the second sub-housing, and the first sub-display portion corresponds to the first sub-housing ,
  • the second sub-display portion corresponds to the second sub-housing, the second display portion corresponds to the first housing, and the third display portion is wound by the winding assembly on the The first storage cavity.
  • the preset included angle ranges from 60 degrees to 120 degrees.
  • a side of the first housing away from the second housing is provided with a first opening communicating with the first storage cavity; the third display The end of the portion away from the second display portion is connected to the winding assembly through the first opening.
  • the first housing is provided with a second opening on a side away from the first opening, and the second opening is in communication with the first storage cavity,
  • the stretching assembly is received in the first receiving cavity through the second opening so as to overlap with the first housing.
  • a third opening is provided on the side of the stretching assembly away from the second housing, and the stretching assembly is further provided in communication with the third opening.
  • the first housing is received in the second housing cavity through the third opening so as to overlap with the stretching assembly.
  • the winding assembly includes a coil spring, the coil spring is located in the first receiving cavity and connected to the first housing, and the flexible display assembly One end extending into the first receiving cavity is connected with the coil spring.
  • the winding assembly further includes a roller located in the first storage cavity and having an axis parallel to the coil spring; the roller is located far away from the coil spring.
  • a roller located in the first storage cavity and having an axis parallel to the coil spring; the roller is located far away from the coil spring.
  • an end of the flexible display assembly away from the second housing bypasses the roller in the first receiving cavity and is connected to the coil spring.
  • the first rotating assembly includes a first rotating shaft and a second rotating shaft arranged side by side, and a first connecting member and a first connecting member located at both ends of the first rotating shaft and the second rotating shaft.
  • the second connecting member, the two ends of the first rotating shaft are respectively rotatably connected with the first connecting member and the second connecting member, and the two ends of the second rotating shaft are respectively the first connecting member and the first connecting member Two connecting pieces are connected by rotation;
  • the side of the stretching assembly close to the second housing is fixedly connected to the first rotating shaft, and the side of the second housing close to the stretching component is fixedly connected to both ends of the second rotating shaft .
  • the first rotating component and the second rotating component have the same structure.
  • an LCD display screen is provided on a side of the second housing away from the flexible display assembly.
  • An embodiment of the present application also provides a foldable display device, including a first housing provided with a first storage cavity inside, and a winding assembly provided in the first housing cavity to slide with the first housing
  • the flexible display assembly includes a first display portion, a second display portion, and a third display portion that are arranged adjacent to each other in sequence; the first display portion is arranged on one side of the second housing, and the first display The end of the third display portion away from the second display portion is connected to the second housing, and the end of the third display portion away from the second display portion is connected to the winding assembly;
  • the stretching assembly and the first housing are arranged to expand each other, and the second housing and the stretching assembly are arranged to expand each other;
  • the flexible display The components are laid on the same side of the second casing, the stretching component and the first casing, and the first display portion corresponds to the second casing, and the second display portion corresponds to the second casing.
  • the stretching assembly corresponds to the third display part corresponding to the first housing;
  • the stretching assembly and the first housing are arranged to overlap each other, and the second housing and the stretching assembly are arranged to be folded together; the first The display portion and the second display portion are laid on the same side of the second housing and the first housing, and the first display portion corresponds to the second housing, and the second display portion Corresponding to the first housing, the third display portion is wound in the first receiving cavity by the winding assembly.
  • the beneficial effects of the present application are: in the present application, when the foldable display device is fully unfolded, the first housing, the stretching assembly, and the second housing are mutually unfolded, and the flexible display is located in the first storage cavity of the first housing The component is stretched out, so that the flexible display component is unfolded on the first shell, the stretching component and the second shell, effectively increasing the display area, and the winding component provides elastic tension for the flexible display component at this time.
  • the stretching assembly and the first housing are arranged to overlap, and the second housing and the stretching assembly are folded and arranged, part of the flexible display assembly Folding setting, the other part is curled in the first storage cavity, and the winding assembly and the stretching assembly can automatically adjust the curling length of the flexible display assembly, thereby adjusting the length of the flexible display assembly of the folded part, and avoiding the flexible display assembly during the folding process Damaged due to changes in the overall length of the tensile component, the first rotating component and the surface of the second housing;
  • the present application enables a foldable display device with a larger display area to present a smaller volume when folded and stored, and is convenient to carry; on the other hand, the winding assembly can maintain a flexible display when the foldable display device is unfolded In the flat state of the assembly, the curling length of the flexible display assembly can also be adjusted when the foldable display device is folded to automatically compensate for the length of the folded portion of the flexible display assembly, so as to prevent the flexible display assembly from being damaged when folded; and, the foldable display
  • the automatic compensation function of the winding component and the stretching component in the device can simplify the structural design of the first rotating component, and greatly reduce the production cost and efficiency; in addition, the foldable display device of the present application has a larger The display area and smaller storage volume can be used as electronic maps, etc. The larger display area allows you to see the landform and layout more clearly, and the smaller storage volume is convenient to carry and has a wide range of applications.
  • FIG. 1 is a schematic structural diagram of a foldable display device with an unexpanded stretch assembly provided by an embodiment of the application;
  • FIG. 2 is a schematic structural diagram of a fully unfolded foldable display device provided by an embodiment of the application
  • Fig. 3 is a schematic cross-sectional structure diagram of A-A' in Fig. 2;
  • Fig. 4 is a schematic diagram of another cross-sectional structure of A-A' in Fig. 2;
  • FIG. 5 is a schematic structural diagram of a flexible display assembly provided by an embodiment of the application.
  • FIG. 6 is a schematic structural diagram of a fully foldable foldable display device provided by an embodiment of the application.
  • FIG. 7 is a schematic diagram of a connection structure between a stretching assembly and a second housing provided by an embodiment of the application.
  • FIG. 8 is a schematic diagram of another connection structure between a stretching assembly and a second housing provided by an embodiment of the application.
  • FIG. 9 is a schematic diagram of another connection structure between a stretching assembly and a second housing provided by an embodiment of the application.
  • FIG. 10 is a schematic structural diagram of another fully foldable foldable display device provided by an embodiment of the application.
  • FIG. 11 is a schematic structural diagram of another foldable display device with an unexpanded stretch component provided by an embodiment of the application.
  • FIG. 12 is a schematic structural diagram of another fully unfolded foldable display device provided by an embodiment of the application.
  • FIG. 13 is a schematic structural diagram of another fully foldable foldable display device provided by an embodiment of the application.
  • FIG. 14 is a schematic structural diagram of another foldable display device with an unexpanded stretch component provided by an embodiment of the application.
  • connection should be understood in a broad sense, unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection.
  • Connected or integrally connected it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • connection should be understood in a broad sense, unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection.
  • Connected or integrally connected it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • the specific meanings of the above-mentioned terms in this application can be understood under specific circumstances.
  • an embodiment of the present application provides a foldable display device 1, including a first housing 2, a second housing 3, a winding assembly 4, a stretching assembly 5, and a first rotating assembly 6 and the flexible display assembly 7; the inside of the first housing 2 is provided with a first storage cavity 8, the winding assembly 4 is arranged in the first storage cavity 8, wherein the winding assembly 4 has an automatic winding function; stretching The assembly 5 is slidably connected to the first housing 2; the first rotating assembly 6 is connected to the end of the stretching assembly 5 away from the first housing 2, and is connected to the end of the second housing 3 close to the stretching assembly 5.
  • the second housing The body 3 is rotatably connected with the stretching assembly 5 through the first rotating assembly 6; a part of the flexible display assembly 7 is arranged on the same side of the first housing 2 and the second housing 3, and the other part extends into the first receiving cavity 8 and retracts.
  • the roll assembly 4 is connected; the flexible display assembly 7 can be curled on the winding assembly 4 through the winding part of the winding assembly 4, so as to be stored in the first storage cavity 8.
  • the flexible display assembly 7 can also be pulled under the action of tension It is stretched out from the winding assembly 4 in the first storage cavity 8 for display; when the flexible display assembly 7 in the first storage cavity 8 is stretched out, the winding assembly 4 provides the flexible display assembly 7 A retractable elastic pull.
  • the flexible display assembly 7 includes a first display portion 9, a second display portion 10, and a third display portion 11 arranged adjacently in sequence; the first display portion 9 is arranged on the second housing 3 One side, and the end of the first display portion 9 away from the second display portion 10 is connected to the second housing 3, and the end of the third display portion 11 away from the second display portion 10 is connected to the winding assembly 4.
  • the first display portion 9, the second display portion 10, and the third display portion 11 of the flexible display assembly 7 are integrally formed in the same manufacturing process, and are only divided into the first display portion 9 and the second display portion from the display area. Section 10 and the third display section 11; In addition, as shown in FIG.
  • the structure of the flexible display assembly 7 includes a flexible screen 12, a protective cover 13 on the flexible screen 12, and a protective cover 13 and the flexible screen 12
  • the length of the protective cover 13 is greater than the length of the flexible screen 12, and the flexible screen 12 is used for display.
  • the protective cover 13 is used to protect the flexible screen 12 from being scratched and damaged on the one hand.
  • the first display part 9 is fixedly connected to the end of the second housing 3 away from the first housing 2 through the protective cover 13, and the third display part 11 is through the protective cover 13 It is fixedly connected to the winding assembly 4, and during the use and storage of the foldable display device 1, the protective cover 13 that extends from the third display portion 11 and does not cover the flexible screen 12 is located in the first storage cavity 8;
  • the cover 13 includes a flexible PI (Polyimide Film, polyimide film) film or a flexible cover glass, which is not limited here.
  • the stretching assembly 5 and the first housing 2 are mutually expanded (specifically, the stretching assembly 5 moves away from the first housing). 2 is slid to expand, or the first housing 2 is slid to expand in a direction away from the stretching assembly 5), and the second housing 3 and the stretching assembly 5 are mutually expanded and arranged (specifically, the second housing 3 And the stretching assembly 5 is rotated by the first rotating assembly 6 to unfold), at this time, the first housing 2, the stretching assembly 5 and the second housing 3 are deployed in the same direction; the flexible display assembly 7 is laid on the second The housing 3, the stretching assembly 5 and the first housing 2 are on the same side.
  • the first display portion 9 corresponds to the second housing 3
  • the second display portion 10 corresponds to the stretching assembly 5
  • the third display portion 11 corresponds to the first housing 2.
  • the first display portion 9, the second display portion 10, and the third display portion 11 are located on the same plane, which can be used for large-screen display, and the second housing 3, the stretching assembly 5 and the first housing 2 respectively provide support for the first display portion 9, the second display portion 10 and the third display portion 11, which is beneficial to improve the display effect and protect the flexible display assembly 7;
  • the winding assembly 4 is a flexible display
  • the assembly 7 provides an elastic pulling force that is folded into the first receiving cavity 8 so that the first display portion 9, the second display portion 10, and the third display portion 11 are in a flat state.
  • the stretching assembly 5 can be fully stretched to between the first housing 2 and the second housing 3, or partly according to the use occasion and the needs of the display area. Stretched out or not stretched out. When the stretching assembly 5 is not stretched out, only the first display portion 9 and the second display portion 10 are used for display; when the stretching assembly 5 is completely stretched out, the first display portion 9, the second display portion 10 and the The third display parts 11 are used for display. It should be noted that during the unfolding process of the foldable display device 1, the stretching component 5 can be stretched to any position within the stretchable range to adjust to the required display area.
  • the stretching assembly 5 and the first housing 2 are arranged to overlap each other (specifically, the stretching assembly 5 is close to the first housing 2 slides to overlap, or the first housing 2 slides toward the direction of the stretching assembly 5 to overlap), and the second housing 3 and the stretching assembly 5 are folded to be arranged (specifically, the second housing 3 And the stretching assembly 5 is rotated to be folded through the first rotating assembly 6); the first display portion 9 and the second display portion 10 are laid on the same side of the second housing 3 and the first housing 2, and the first display portion 9 and The second display portion 10 is also folded to each other, and the first display portion 9 corresponds to the second housing 3, the second display portion 10 corresponds to the first housing 2 (or the stretching assembly 5), and the third display portion 11 is The winding assembly 4 is wound in the first storage cavity 8.
  • the first display portion 9, the second display portion 10, and the third display portion 11 are all in a non-display state; it should be noted that the first display portion 9 And the second display portion 10 can be in an inner folded state or an outer folded state, wherein, in the inner folded state, the first display portion 9 and the second display portion 10 are folded between the stretching assembly 5 and the second housing 3 In the outwardly folded state, the first display portion 9 and the second display portion 10 are folded on the outside of the stretching assembly 5 and the second housing 3.
  • the curling length of 11 is to adjust the length of the flexible display assembly 7 located outside the first receiving cavity 8.
  • the overall length of the side (inside) of the stretching assembly 5, the first rotating assembly 6 and the second housing 3 close to the flexible display assembly 7 is smaller than the corresponding
  • the total length of the first display portion 9 and the second display portion 10 of the winding assembly 4 can be increased by the automatic winding function of the winding assembly 4 to increase the length of the third display portion 11 curled on the winding assembly 4 to reduce the corresponding length
  • the lengths of the first display portion 9 and the second display portion 10 of the second housing 3, the stretching assembly 5 and the first rotating assembly 6 can prevent the bending of the first display portion 9 and the second display portion 10 from being insufficient.
  • the stretching assembly 5, the first rotating assembly 6 and the second housing 3 are close to the side (outside) of the flexible display assembly 7.
  • the overall length is greater than the corresponding total length of the first display portion 9 and the second display portion 10, and the stretch assembly 5 slides away from the first housing 2 to drive the winding assembly 4 to rotate and stretch out a part of the third display portion 11.
  • the stretching assembly 5 and the first rotating assembly 6, which can avoid The first display portion 9 and the second display portion 10 are broken due to excessive stretching.
  • the display areas of the first display portion 9, the second display portion 10, and the third display portion 11 are equal, which are all equivalent to the unit display area; then, when the stretching component 5 is stretched out, and the stretching component 5 is When the second housing 3 is unfolded, the foldable display device 1 has twice the unit display area; when the first housing 2, the stretching assembly 5, and the second housing 3 are fully unfolded, the foldable display device 1 has three times the unit display area. Display area. It should be noted that after the stretching assembly 5 is fully stretched, the display area can also be expanded to 4 times the unit display area, which is determined by the structure of the stretching assembly 5 and the first housing 2. Here, the specific expansion of the display area There is no restriction on multiples.
  • the foldable display device 1 when the foldable display device 1 is fully unfolded, the first housing 2, the stretching assembly 5, and the second housing 3 are mutually unfolded, and the flexible display is located in the first storage cavity 8 of the first housing 2
  • the assembly 7 (the third display portion 11) is stretched out, so that the flexible display assembly 7 is unfolded on the first housing 2, the stretching assembly 5, and the second housing 3, effectively increasing the display area and rewinding
  • the elastic tension provided by the assembly 4 for the flexible display assembly 7 at this time is beneficial to keep the flexible display assembly 7 in a flat state, which can improve the display effect; when the foldable display device 1 is folded and stored, the stretching assembly 5 overlaps the first housing 2 And the second housing 3 and the stretching assembly 5 are folded and arranged.
  • a part of the flexible display assembly 7 (the first display part 9 and the second display part 10) is folded and arranged, and the other part (the third display part 11) is curled on the first In the accommodating cavity 8, the winding assembly 4 and the stretching assembly 5 can automatically adjust the curling length of the flexible display assembly 7, thereby adjusting the length of the flexible display assembly 7 in the folded part, and avoiding the flexible display assembly 7 from being stretched during the folding process.
  • the component 5, the first rotating component 6, and the entire surface of the second housing 3 are damaged due to changes in the overall length.
  • the present application makes the foldable display device 1 with a larger display area present a smaller volume when folded and stored, and is convenient to carry; on the other hand, the winding assembly 4 can be used when the foldable display device 1 is unfolded.
  • the curling length of the flexible display assembly 7 can also be adjusted when the foldable display device 1 is folded to automatically compensate for the length of the folded portion of the flexible display assembly 7 to prevent the flexible display assembly 7 from being folded.
  • the automatic compensation function of the winding assembly 4 and the stretching assembly 5 in the foldable display device 1 can simplify the structural design of the first rotating assembly 6 and greatly reduce the production cost and efficiency;
  • the foldable display device 1 of the present application has a larger display area and a smaller storage volume, and can be used as an electronic map. The larger display area allows you to see the landscape and layout more clearly, and the smaller storage volume It is easy to carry and widely used.
  • the side of the first housing 2 away from the second housing 3 is provided with a first opening 15 communicating with the first storage cavity 8; the third display portion 11 is away from the second display One end of the portion 10 is connected to the winding assembly 4 through the first opening 15; the first housing 2 is also provided with a second opening 16 on the side away from the first opening 15, and the second opening 16 communicates with the first receiving cavity 8.
  • the stretching assembly 5 is received in the first receiving cavity 8 through the second opening 16 so as to overlap with the first housing 2.
  • the first opening 15 may be located on the upper surface of the first housing 2 and at an end away from the second housing 3, or may be located on the side of the first housing 2.
  • the specific position is not limited here.
  • the stretching assembly 5 may include a stretching body, and sliders (not shown in the figure) provided on both sides of the stretching body; the inside of the side wall of the first housing 2 is provided with sliding rails corresponding to the sliders, The sliding block can slide on the sliding rails, so that the stretching assembly 5 and the first housing 2 are slidably connected (or, the two sides of the stretching main body are provided with sliding rails, and the inside of the side walls of the first housing 2 is provided with corresponding sliding rails.
  • the sliding block, the sliding block can slide on the sliding rail, so that the stretching assembly 5 and the first housing 2 are slidably connected); and the side of the stretching main body away from the second housing 3 is close to the first housing 2
  • One side of the body 3 is provided with a limiting structure for fixing the stretching assembly 5 on the side of the first housing 2 close to the second housing 3 when the foldable display device 1 is fully unfolded.
  • the stretching assembly 5 may also have a comb-like structure.
  • the supporting structure of the first housing 2 close to the flexible display assembly 7 is also a comb-like structure.
  • the first housing 2 and the stretching assembly 5 pass through the comb-like structure.
  • the stretching assembly 5 can also be other structures that can be slidably connected to the first housing 2.
  • the structures of the stretching assembly 5 and the first housing 2 conceived in this application are both within the protection scope of this application. Inside.
  • the winding assembly 4 includes a coil spring 17.
  • the coil spring 17 is located in the first housing cavity 8 and connected to the first housing 2, and the flexible display assembly 7 extends into the first housing cavity.
  • One end of 8 is connected to the coil spring 17.
  • the winding assembly 4 may also include a roller 18 with an axis parallel to the coil spring 17.
  • the number of the roller 18 can be one or more; when the number of the roller 18 is one, the roller 18 is located at the first opening 15 and the coil spring. Between 17, the end of the third display portion 11 away from the second display portion 10 passes through the roller 18 through the first opening 15 and is connected to the coil spring 17; when the number of rollers 18 is multiple, the radius of each roller 18 is different For example, as shown in FIG.
  • the winding assembly 4 further includes a first roller 19 with a larger radius and a second roller 20 with a smaller radius, wherein the axes of the first roller 19 and the second roller 20 are both aligned with the coil spring 17 is parallel, the coil spring 17 is located between the first roller 19 and the second roller 20.
  • the first roller 19, the coil spring 17 and the second roller 20 are respectively spaced apart, and the first roller 19 is located between the first opening 15 and the coil spring 17.
  • one end of the third display portion 11 away from the second display portion 10 passes through the first opening 15 and sequentially bypasses the first roller 19 and the second roller 20 and is connected to the coil spring 17.
  • the gap formed by the winding assembly 4 can also be used to place the system circuit board and battery of the display device, making full use of the empty space, which is beneficial to reduce the size of the first housing 2 and the second housing 3 and facilitate storage.
  • the stretching assembly 5 slides away from the first housing 2 through the second opening 16 to drive the winding assembly 4 to rotate in the first direction (for example, clockwise) , And stretch the third display portion 11 out of the first opening 15; when the foldable display device 1 is folded, the stretching assembly 5 slides toward the first housing 2 through the second opening 16, and finally slides to the first housing 2 In a storage cavity 8, during this process, through the automatic winding action of the winding assembly 4, the winding assembly 4 rotates in the second direction (for example, counterclockwise), and the third display portion 11 is wound in the first storage Cavity 8.
  • the first rotating assembly 6 includes a first rotating shaft 21 and a second rotating shaft 22 arranged side by side, and a first connecting member 23 and a first connecting member 23 and a second rotating shaft 22 located at both ends of the first rotating shaft 21 and the second rotating shaft 22.
  • the second connecting member 24, the two ends of the first rotating shaft 21 are respectively rotatably connected with the first connecting member 23 and the second connecting member 24, and the two ends of the second rotating shaft 22 are respectively rotatably connected with the first connecting member 23 and the second connecting member 24
  • the side of the stretching assembly 5 close to the second housing 3 is fixedly connected to the first rotating shaft 21, and the side of the second housing 3 close to the stretching assembly 5 is fixedly connected to both ends of the second rotating shaft 22.; Or, as shown in FIG.
  • the first rotating assembly 6 includes a first rotating shaft 21 and a first connecting member 23 and a second connecting member 24 located at both ends of the first rotating shaft 21, and both ends of the first rotating shaft 21 are respectively connected to the first
  • the part 23 and the second connecting part 24 are rotatably connected; the side of the stretching assembly 5 close to the second housing 3 is fixedly connected to the first shaft 21, and the side of the second housing 3 close to the stretching assembly 5 is connected to the first connecting part 23 and the second connecting member 24 are fixedly connected.
  • the automatic compensation function of the winding assembly 4 and the stretching assembly 5 in the foldable display device 1 can simplify the structural design of the first rotating assembly 6, which greatly reduces the production cost and improves the production efficiency.
  • an embodiment of the present application also provides a foldable display device 1.
  • the difference from the above-mentioned embodiment is that a third opening 25 is provided on the side of the stretching assembly 5 away from the second housing 3,
  • the extension assembly 5 is further provided with a second storage cavity 26 communicating with the third opening 25, and the first housing 2 is received in the second accommodation cavity 26 through the third opening 25 so as to overlap with the extension assembly 5.
  • first housing 2 and the stretching assembly 5 are slidably connected in a "drawer style".
  • the stretching assembly 5 may also be other structures that can be slidably connected to the first housing 2.
  • the structures of the stretching assembly 5 and the first housing 2 suitable for the concept of the present application are both within the protection scope of the present application.
  • the first housing 2 slides in a direction away from the stretching assembly 5 through the third opening 25, driving the winding assembly 4 to rotate in the first direction (for example, clockwise) , And stretch the third display portion 11 out of the first opening 15;
  • the first housing 2 slides toward the stretching assembly 5 through the third opening 25, and finally slides to the first In the second storage chamber 26, during this process, through the automatic winding action of the winding assembly 4, the winding assembly 4 rotates in the second direction (for example, counterclockwise) to wind the third display portion 11 in the first storage Cavity 8.
  • an embodiment of the present application also provides a foldable display device 1.
  • a liquid crystal display LCD
  • Liquid crystal display Liquid crystal display
  • the first display portion 9 and the second display portion 10 are in an internally folded state when folded, that is, the first display portion 9 and the second display portion 10 are folded to each other and are located in the second housing 3 and the stretching assembly that are folded to each other.
  • the LCD display 27 may be packaged in rigid glass.
  • the LCD display 27 can also be arranged on the side of the first housing 2 away from the flexible display assembly 7, which is not limited here.
  • the flexible display assembly 7 is of a flexible structure
  • the first display portion 9 and the second display portion 10 of the foldable display device 1 are folded inward, and the first display portion 9 of the flexible display assembly 7 can be folded during storage.
  • the second display portion 10 are protected between the second housing 3 and the stretching assembly 5 (the third display portion 11 is located in the first storage cavity 8 and is protected by the first housing 2) to prevent the flexible display assembly 7 from being scratched Or damaged by external impact; in addition, a rigid LCD display 27 is provided on the side of the second housing 3 away from the flexible display assembly 7.
  • an embodiment of the present application also provides a foldable display device 1.
  • the second housing 3 includes a plurality of sub-housings arranged in sequence, and any adjacent ones The two sub-housings are rotatably connected by the second rotating assembly 30, and the number of the sub-housings is not shown here.
  • the second housing 3 includes a first sub-housing 28, a second sub-housing 29, and a second rotating assembly 30 located between the first sub-housing 28 and the second sub-housing 29; the first sub-housing 28 is rotatably connected to the second sub-housing 29 through the second rotating assembly 30; the first sub-housing 28 is also connected to the first rotating assembly 6, and the first sub-housing 28 is also connected to the stretching assembly 5 through the first rotating assembly 6 Rotate the connection.
  • the first display portion 9 includes a first sub-display portion 31 and a second sub-display portion 32 that are adjacently arranged, and the first sub-display portion 31 is located in the second display portion 10 and the second sub-display portion. Between the sections 32, the first sub-display section 31 is provided corresponding to the first sub-housing 28, and the second sub-display section 32 is provided corresponding to the second sub-housing 29.
  • the stretching assembly 5 and the first housing 2 are mutually expanded and arranged, and the first sub-housing 28 and the second sub-housing 29 and the stretching assembly 5 are all deployed;
  • the flexible display assembly 7 is laid on the same side of the first sub-housing 28, the second sub-housing 29, the stretching assembly 5 and the first housing 2, and the first sub-display part 31 corresponds to the first sub-housing 28, the second sub-display portion 32 corresponds to the second sub-housing 29, the second display portion 10 corresponds to the stretching assembly 5, and the third display portion 11 corresponds to the first housing 2.
  • the stretching assembly 5 and the first housing 2 are arranged to overlap each other, and the first sub-housing 28 and the stretching assembly 5 are mutually folded.
  • the second sub-housing 29 and the first sub-housing 28 are folded and arranged; the first sub-display portion 31, the second sub-display portion 32 and the second display portion 10 are laid on the second sub-housing 29 and the first sub-housing.
  • the housing 28 and the first housing 2 are on the same side, and the first sub-display portion 31 corresponds to the first sub-case 28, the second sub-display portion 32 corresponds to the second sub-case 29, and the second display portion 10 corresponds to The first housing 2 (or the stretching assembly 5) corresponds to the third display portion 11 being rolled by the winding assembly 4 in the first storage cavity 8.
  • the second rotating component 30 includes an inner folding rotating component and an outer folding rotating component, as well as a rotating component that can be folded inward or outward; the second rotating component 30 and the first rotating component 6 may have the same structure or Can be different, there is no restriction here.
  • the stretching assembly 5, the first sub-housing 28, and the second sub-housing 29 can be stacked in a zigzag configuration, and of course, can also be folded in other forms. , There is no restriction here.
  • the stretching assembly 5 and the first housing 2 are arranged to overlap each other, and the second housing 3 and the stretching assembly 5 are rotated into a preliminary state.
  • the first sub-display portion 31 corresponds to the first sub-housing 28
  • the second sub-display portion 32 corresponds to the second sub-housing 29
  • the second display portion 10 corresponds to the first housing 2 (or the stretching assembly 5).
  • the third display portion 11 is wound in the first storage cavity 8 by the winding assembly 4.
  • the preset included angle ⁇ ranges from 60 degrees to 120 degrees.
  • the second housing 3 including the first sub-housing 28 and the second sub-housing 29
  • the first housing 2 (or the stretching assembly 5) is arranged vertically, and the foldable display device 1 can be placed and used with the first housing 2 as a base.
  • the third display portion 11 is located on the first housing 2, which can be Used as an operation interface, such as a virtual keyboard, the first character display portion is located on the first sub-housing 28, the second character display portion is located on the second sub-housing 29, the first sub-display portion 31 and the second sub-display portion 32 It can be used as a display interface, which is convenient for users to use in multiple styles.
  • the area of the flexible display assembly 7 corresponding to the first housing 2 is used as the unit display area, and the length of the first housing 2 is the same as that of the stretching assembly 5, the first sub-housing 28, and the second sub-housing, respectively.
  • the display areas of the first sub-display portion 31, the second sub-display portion 32, the second display portion 10, and the third display portion 11 are equal, which are all equivalent to the unit display area; then, when foldable When the display device 1 is fully unfolded, it has 4 times the unit display area, and only has a storage area corresponding to the unit display area when stored, the overall volume is small, and it is easy to carry; and the foldable display assembly is flexible when the display assembly 7 is folded. After being folded twice, the next time it is unfolded and used, it is easy to wrinkle or lift away from the casing, which is not conducive to the improvement of the display effect.
  • the winding assembly 4 of the present application has the function of automatic winding, which can be used in the flexible display assembly. 7
  • the flexible display assembly 7 When unfolding, the flexible display assembly 7 is provided with a pulling force to collapse into the first storage cavity 8, which helps to ensure that the flexible display assembly 7 remains flat, thereby improving the display effect; in addition, the flexible display assembly 7 stretches the assembly during the folding process 5 and the winding assembly 4 can also automatically compensate for the length of the flexible display assembly 7 of the folded part, which is beneficial to protect the flexible display assembly 7, and is beneficial to simplify the structure of the first rotating assembly 6 and avoid the complicated passage of the first rotating assembly 6
  • the structure protects the flexible display assembly 7 of the folded part; more importantly, when the second housing 3 includes more than two sub-housings, the foldable display assembly has at least 4 times the unit display area, which can be used as an electronic map, etc. , The larger display area can see the landform and layout more clearly, and the smaller storage volume is small and convenient for storage, and it has a wide range of applications.

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Abstract

一种可折叠显示装置（1），包括内部设置有第一收纳腔（8）的第一壳体（2），设置在第一收纳腔（8）中的收卷组件（4），位于第一壳体（2）一侧的第二壳体（3），一端与第一壳体（2）滑动连接且另一端与第二壳体（3）转动连接的拉伸组件（5），一部分设置在第一壳体（2）和第二壳体（3）的同一侧且另一部分伸入第一收纳腔（8）中与收卷组件（4）连接的柔性显示组件（7）。

Description

可折叠显示装置 技术领域
本申请涉及显示面板技术领域，尤其涉及一种可折叠显示装置。
 背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术。
目前OLED（Organic Light Emitting Diode，有机发光二极管显示器）以其可弯曲可挠曲受到广泛关注，通过将OLED折叠或卷起可使较大尺寸屏幕所占用的空间减小，使其更加的便携，因此折叠和卷曲的显示设备成为柔性OLED屏的主要研究方向。
现有的柔性OLED屏包括可折叠和可卷曲两种显示屏，上述两种显示屏虽然在一定程度上减小了显示装置的尺寸，但是仍占据较大的空间，不利于更大尺寸的柔性OLED屏的收纳携带；另外，现有的可折叠显示装置需要对折叠区用于壳体折叠的连接组件采取补偿设计，以避免柔性显示屏在弯折过程中因连接组件的收缩或扩张而被破坏，但是，现有的连接组件结构设计比较复杂，且占据较大空间，也不利于节约制作成本和提高制作效率。因此，如何实现具有更大显示面积以及携带更加方便的柔性显示装置是一个重要的研究方向。
 技术问题
本申请提供一种可折叠显示装置，通过将可折叠柔性显示屏与可拉伸柔性显示屏相结合，实现具有更大显示面积以及携带更加方便的可折叠显示装置。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请实施例提供了一种可折叠显示装置，包括内部设置有第一收纳腔的第一壳体，设置在所述第一收纳腔中的收卷组件，与所述第一壳体滑动连接的拉伸组件，与所述拉伸组件远离所述第一壳体的一端连接的第一转动组件，与所述第一转动组件连接的第二壳体，一部分设置在所述第一壳体和所述第二壳体的同一侧且另一部分伸入所述第一收纳腔中与所述收卷组件连接的柔性显示组件；其中，所述第二壳体通过所述第一转动组件与所述拉伸组件转动连接；当位于所述第一收纳腔中的所述柔性显示组件被拉伸出来时，所述收卷组件为所述柔性显示组件提供一个收拢的弹性拉力。
在本申请实施例所提供的可折叠显示装置中，所述柔性显示组件包括依次相邻设置的第一显示部、第二显示部和第三显示部；
所述第一显示部设置在所述第二壳体的一侧，且所述第一显示部远离所述第二显示部的一端与所述第二壳体连接，所述第三显示部远离所述第二显示部的一端与所述收卷组件连接。
在本申请实施例所提供的可折叠显示装置中，当所述可折叠显示装置处于第一状态时，所述拉伸组件与所述第一壳体相互展开设置，且所述第二壳体和所述拉伸组件相互展开设置；
所述柔性显示组件铺设在所述第二壳体、所述拉伸组件和所述第一壳体的同一侧，且所述第一显示部与所述第二壳体对应，所述第二显示部与所述拉伸组件对应，所述第三显示部与所述第一壳体对应。
在本申请实施例所提供的可折叠显示装置中，当所述可折叠显示装置处于第二状态时，所述拉伸组件与所述第一壳体相互重叠设置，且所述第二壳体和所述拉伸组件相互折叠设置；
所述第一显示部和所述第二显示部铺设在所述第二壳体、所述第一壳体的同一侧，且所述第一显示部与所述第二壳体对应，所述第二显示部与所述第一壳体对应，所述第三显示部被所述收卷组件收卷于所述第一收纳腔中。
在本申请实施例所提供的可折叠显示装置中，所述第二壳体包括第一子壳体、第二子壳体以及位于所述第一子壳体和所述第二子壳体之间的第二转动组件；所述第一子壳体通过所述第二转动组件与所述第二子壳体转动连接；所述第一子壳体还与所述第一转动组件连接，所述第一子壳体还通过所述第一转动组件与所述拉伸组件转动连接。
在本申请实施例所提供的可折叠显示装置中，所述第一显示部包括相邻设置的第一子显示部和第二子显示部，所述第一子显示部位于所述第二显示部和所述第二子显示部之间，所述第一子显示部对应所述第一子壳体设置，所述第二子显示部对应所述第二子壳体设置。
在本申请实施例所提供的可折叠显示装置中，当所述可折叠显示装置处于第一状态时，所述拉伸组件与所述第一壳体相互展开设置，且所述第一子壳体、所述第二子壳体以及所述拉伸组件均展开设置；
所述柔性显示组件铺设在所述第一子壳体、所述第二子壳体、所述拉伸组件和所述第一壳体的同一侧，且所述第一子显示部与所述第一子壳体对应，所述第二子显示部与所述第二子壳体对应，所述第二显示部与所述拉伸组件对应，所述第三显示部与所述第一壳体对应。
在本申请实施例所提供的可折叠显示装置中，当所述可折叠显示装置处于第二状态时，所述拉伸组件与所述第一壳体相互重叠设置，所述第一子壳体与所述拉伸组件相互折叠设置，所述第二子壳体与所述第一子壳体相互折叠设置；
所述第一子显示部、所述第二子显示部和所述第二显示部铺设在所述第二子壳体、所述第一子壳体以及所述第一壳体的同一侧，且所述第一子显示部与所述第一子壳体对应，所述第二子显示部与所述第二子壳体对应，所述第二显示部与所述第一壳体对应，所述第三显示部被所述收卷组件收卷于所述第一收纳腔中。
在本申请实施例所提供的可折叠显示装置中，当所述可折叠显示装置处于所述第二状态时，所述拉伸组件、所述第一子壳体和所述第二子壳体呈Z字型堆叠设置。
在本申请实施例所提供的可折叠显示装置中，当所述可折叠显示装置处于第三状态时，所述拉伸组件与所述第一壳体相互重叠设置，所述第二壳体与所述拉伸组件转动成预设夹角设置，所述第一子壳体与所述第二子壳体相互展开设置；
所述柔性显示组件铺设在所述第一壳体、所述第一子壳体、以及所述第二子壳体的同一侧，所述第一子显示部与所述第一子壳体对应，所述第二子显示部与所述第二子壳体对应，所述第二显示部与所述第一壳体对应，所述第三显示部被所述收卷组件收卷于所述第一收纳腔中。
在本申请实施例所提供的可折叠显示装置中，所述预设夹角的范围为60度~120度。
在本申请实施例所提供的可折叠显示装置中，所述第一壳体远离所述第二壳体的一侧设有与所述第一收纳腔连通的第一开口；所述第三显示部远离所述第二显示部的一端通过所述第一开口与所述收卷组件连接。
在本申请实施例所提供的可折叠显示装置中，所述第一壳体在远离所述第一开口的一侧设有第二开口，所述第二开口与所述第一收纳腔连通，所述拉伸组件通过所述第二开口收纳于所述第一收纳腔中，以与所述第一壳体相互重叠设置。
在本申请实施例所提供的可折叠显示装置中，所述拉伸组件远离所述第二壳体的一侧设有第三开口，所述拉伸组件还设有与所述第三开口连通的第二收纳腔，所述第一壳体通过所述第三开口收纳于所述第二收纳腔中，以与所述拉伸组件相互重叠设置。
在本申请实施例所提供的可折叠显示装置中，所述收卷组件包括卷簧，所述卷簧位于所述第一收纳腔内且与所述第一壳体连接，所述柔性显示组件伸入所述第一收纳腔中的一端与所述卷簧连接。
在本申请实施例所提供的可折叠显示装置中，所述收卷组件还包括位于所述第一收纳腔内且轴线与所述卷簧平行的滚轮；所述滚轮位于所述卷簧远离所述第二壳体的一侧，所述柔性显示组件远离所述第二壳体的一端在所述第一收纳腔中绕过所述滚轮与所述卷簧连接。
在本申请实施例所提供的可折叠显示装置中，所述第一转动组件包括并排设置的第一转轴和第二转轴，以及位于所述第一转轴和第二转轴两端的第一连接件和第二连接件，所述第一转轴的两端分别与所述第一连接件和所述第二连接件转动连接，所述第二转轴的两端分别所述第一连接件和所述第二连接件转动连接；
所述拉伸组件靠近所述第二壳体的一侧与所述第一转轴固定连接，所述第二壳体靠近所述拉伸组件的一侧与所述第二转轴的两端固定连接。
在本申请实施例所提供的可折叠显示装置中，所述第一转动组件和所述第二转动组件的结构相同。
在本申请实施例所提供的可折叠显示装置中，所述第二壳体远离所述柔性显示组件的一侧设有LCD显示屏。
本申请实施例还提供了一种可折叠显示装置，包括内部设置有第一收纳腔的第一壳体，设置在所述第一收纳腔中的收卷组件，与所述第一壳体滑动连接的拉伸组件，与所述拉伸组件远离所述第一壳体的一端连接的第一转动组件，与所述第一转动组件连接的第二壳体，一部分设置在所述第一壳体和所述第二壳体的同一侧且另一部分伸入所述第一收纳腔中与所述收卷组件连接的柔性显示组件；其中，所述第二壳体通过所述第一转动组件与所述拉伸组件转动连接；
所述柔性显示组件包括依次相邻设置的第一显示部、第二显示部和第三显示部；所述第一显示部设置在所述第二壳体的一侧，且所述第一显示部远离所述第二显示部的一端与所述第二壳体连接，所述第三显示部远离所述第二显示部的一端与所述收卷组件连接；
当所述可折叠显示装置处于第一状态时，所述拉伸组件与所述第一壳体相互展开设置，且所述第二壳体和所述拉伸组件相互展开设置；所述柔性显示组件铺设在所述第二壳体、所述拉伸组件和所述第一壳体的同一侧，且所述第一显示部与所述第二壳体对应，所述第二显示部与所述拉伸组件对应，所述第三显示部与所述第一壳体对应；
当所述可折叠显示装置处于第二状态时，所述拉伸组件与所述第一壳体相互重叠设置，且所述第二壳体和所述拉伸组件相互折叠设置；所述第一显示部和所述第二显示部铺设在所述第二壳体、所述第一壳体的同一侧，且所述第一显示部与所述第二壳体对应，所述第二显示部与所述第一壳体对应，所述第三显示部被所述收卷组件收卷于所述第一收纳腔中。
 有益效果
本申请的有益效果为：本申请中，当可折叠显示装置完全展开时，第一壳体、拉伸组件和第二壳体相互展开，位于第一壳体的第一收纳腔中的柔性显示组件被拉伸出来，使得柔性显示组件展开在第一壳体、拉伸组件和第二壳体上，有效的增大了显示面积，且收卷组件此时为柔性显示组件提供的弹性拉力有利于使柔性显示组件保持平坦状态，可以提高显示效果；当可折叠显示装置折叠收纳时，拉伸组件与第一壳体重叠设置，且第二壳体和拉伸组件折叠设置，柔性显示组件一部分折叠设置，另一部分卷曲在第一收纳腔中，且收卷组件和拉伸组件可以自动调节柔性显示组件的卷曲长度，从而调节折叠部分的柔性显示组件的长度，避免柔性显示组件在折叠过程中因拉伸组件、第一转动组件和第二壳体表面的整体长度的变化而被损坏；
因此，本申请一方面使具有较大显示面积的可折叠显示装置在折叠收纳时呈现出更小的体积，便于携带；另一方面，收卷组件既可以在可折叠显示装置展开时保持柔性显示组件的平坦状态，也可以在可折叠显示装置折叠时调节柔性显示组件的卷曲长度以对柔性显示组件的折叠部分的长度进行自动补偿，避免柔性显示组件在折叠时被损坏；并且，可折叠显示装置中收卷组件和拉伸组件的自动补偿功能可以使第一转动组件的结构设计更加简单化，大大减小了生产成本和效率；除此之外，本申请的可折叠显示装置具有较大显示面积和较小的收纳体积，可以作为电子地图等使用，较大的显示面积可以更清晰地看到地貌及布局，而较小的收纳体积方便携带，应用广泛。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种拉伸组件未展开的可折叠显示装置的结构示意图；
图2为本申请实施例提供的一种完全展开的可折叠显示装置的结构示意图；
图3为图2中A-A’的截面结构示意图；
图4为图2中A-A’的另一种截面结构示意图；
图5为本申请实施例提供的一种柔性显示组件的结构示意图；
图6为本申请实施例提供的一种完全折叠的可折叠显示装置的结构示意图；
图7为本申请实施例提供的一种拉伸组件与第二壳体的连接结构示意图；
图8为本申请实施例提供的另一种拉伸组件与第二壳体的连接结构示意图；
图9为本申请实施例提供的另一种拉伸组件与第二壳体的连接结构示意图；
图10为本申请实施例提供的另一种完全折叠的可折叠显示装置的结构示意图；
图11为本申请实施例提供的另一种拉伸组件未展开的可折叠显示装置的结构示意图；
图12为本申请实施例提供的另一种完全展开的可折叠显示装置的结构示意图；
图13为本申请实施例提供的另一种完全折叠的可折叠显示装置的结构示意图；
图14为本申请实施例提供的另一种拉伸组件未展开的可折叠显示装置的结构示意图。
 本发明的实施方式
这里所公开的具体结构和功能细节仅仅是代表性的，并且是用来描述本申请的示例性实施例的目的。但是本申请可以通过许多替换形式来具体实现，并且不应当被解释成仅仅受限于这里所阐述的实施例。
在本申请的描述中，需要理解的是，术语“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用来描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。另外，术语“包括”及其任何变形，意图在于覆盖不排他的包含。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
这里所使用的术语仅仅是为了描述具体实施例而不意图限制示例性实施例。除非上下文明确地另有所指，否则这里所使用的单数形式“一个”、“一项”还意图包括复数。还应当理解的是，这里所使用的术语“包括”和/或“包含”规定所陈述的特征、整数、步骤、操作、单元和/或组件的存在，而不排除存在或添加一个或更多其他特征、整数、步骤、操作、单元、组件和/或其组合。
下面结合附图和实施例对本申请作进一步说明。
如图1至图8所示，本申请实施例提供了一种可折叠显示装置1，包括第一壳体2、第二壳体3、收卷组件4、拉伸组件5、第一转动组件6和柔性显示组件7；第一壳体2的内部设置有第一收纳腔8，收卷组件4设置在第一收纳腔8中，其中，收卷组件4具有自动收卷的作用；拉伸组件5与第一壳体2滑动连接；第一转动组件6与拉伸组件5远离第一壳体2的一端连接，且与第二壳体3靠近拉伸组件5的一端连接，第二壳体3通过第一转动组件6与拉伸组件5转动连接；柔性显示组件7一部分设置在第一壳体2和第二壳体3的同一侧，另一部分伸入第一收纳腔8中与收卷组件4连接；柔性显示组件7可以通过收卷组件4的收卷作用部分卷曲在收卷组件4上，从而被收纳在第一收纳腔8中，柔性显示组件7也可以在拉力的作用下从第一收纳腔8中的收卷组件4上被拉伸出来用于显示；当位于第一收纳腔8中的柔性显示组件7被拉伸出来时，收卷组件4为柔性显示组件7提供一个收拢的弹性拉力。
具体的，如图2所示，柔性显示组件7包括依次相邻设置的第一显示部9、第二显示部10和第三显示部11；第一显示部9设置在第二壳体3的一侧，且第一显示部9远离第二显示部10的一端与第二壳体3连接，第三显示部11远离第二显示部10的一端与收卷组件4连接。需要说明的是，柔性显示组件7的第一显示部9、第二显示部10和第三显示部11在同一制程中一体成型，仅从显示区域上划分为第一显示部9、第二显示部10和第三显示部11；另外，如图5所示，柔性显示组件7的组成结构包括柔性屏12、位于柔性屏12上的保护盖板13以及位于保护盖板13和柔性屏12之间的粘结层14，其中，保护盖板13的长度大于柔性屏12的长度，柔性屏12用于显示，保护盖板13一方面用于保护柔性屏12不被刮伤损坏，另一方面用于柔性显示组件7两端的固定连接，例如，第一显示部9通过保护盖板13与第二壳体3远离第一壳体2的一端固定连接，第三显示部11通过保护盖板13与收卷组件4固定连接，且在可折叠显示装置1使用和收纳过程中，从第三显示部11延伸出的未覆盖柔性屏12的保护盖板13均位于第一收纳腔8中；保护盖板13包括柔性PI（Polyimide Film，聚酰亚胺薄膜）膜或柔性盖板玻璃，此处不做限制。
如图2所示，当可折叠显示装置1处于第一状态（完全展开状态）时，拉伸组件5与第一壳体2相互展开设置（具体的，拉伸组件5向远离第一壳体2的方向滑动至展开，或者，第一壳体2向远离拉伸组件5的方向滑动至展开），且第二壳体3和拉伸组件5相互展开设置（具体的，第二壳体3和拉伸组件5通过第一转动组件6转动至展开），此时，第一壳体2、拉伸组件5和第二壳体3在同一方向上展开设置；柔性显示组件7铺设在第二壳体3、拉伸组件5和第一壳体2的同一侧，具体的，第一显示部9与第二壳体3对应，第二显示部10与拉伸组件5对应，第三显示部11与第一壳体2对应，此时，第一显示部9、第二显示部10和第三显示部11位于同一平面上，可用于大屏显示，且第二壳体3、拉伸组件5和第一壳体2分别为第一显示部9、第二显示部10和第三显示部11提供支撑，有利于提高显示效果并保护柔性显示组件7；并且，收卷组件4为柔性显示组件7提供一个向第一收纳腔8内收拢的弹性拉力，使第一显示部9、第二显示部10和第三显示部11位处于平坦状态。
当然，在可折叠显示装置1使用过程中，可以根据使用的场合以及显示面积的需要，将拉伸组件5从完全拉伸至第一壳体2和第二壳体3之间，也可以部分拉伸出来或不拉伸出来。当拉伸组件5不拉伸出来时，仅第一显示部9和第二显示部10用于显示；当拉伸组件5完全拉伸出来时，第一显示部9、第二显示部10和第三显示部11均用于显示。需要说明的是，在可折叠显示装置1展开过程中，拉伸组件5在可拉伸范围内可以拉伸至任意位置以调整至需要的显示面积。
如图6所示，当可折叠显示装置1处于第二状态（完全折叠状态）时，拉伸组件5与第一壳体2相互重叠设置（具体的，拉伸组件5向靠近第一壳体2的方向滑动至重叠，或者，第一壳体2向靠近拉伸组件5的方向滑动至重叠），且第二壳体3和拉伸组件5相互折叠设置（具体的，第二壳体3和拉伸组件5通过第一转动组件6转动至折叠）；第一显示部9和第二显示部10铺设在第二壳体3、第一壳体2的同一侧，第一显示部9和第二显示部10也相互折叠设置，且第一显示部9与第二壳体3对应，第二显示部10与第一壳体2（或拉伸组件5）对应，第三显示部11被收卷组件4收卷于第一收纳腔8中，此时，第一显示部9、第二显示部10和第三显示部11均处于非显示状态；需要说明的是，第一显示部9和第二显示部10可以是内折叠状态也可以是外折叠状态，其中，内折叠状态时，第一显示部9和第二显示部10折叠于拉伸组件5和第二壳体3之间，外折叠状态时，第一显示部9和第二显示部10折叠于拉伸组件5和第二壳体3的外侧。
第二壳体3和拉伸组件5在相互折叠的过程中，第一显示部9和第二显示部10也对应的相互折叠，收卷组件4和拉伸组件5可以自动调节第三显示部11的卷曲长度，也就是调节位于第一收纳腔8外部的柔性显示组件7的长度。例如，当第一显示部9和第二显示部10内折叠时，拉伸组件5、第一转动组件6和第二壳体3靠近柔性显示组件7的一侧（内侧）的整体长度小于对应的第一显示部9和第二显示部10的总长度，通过收卷组件4的自动收卷功能可以增大卷曲在收卷组件4上的第三显示部11的长度，以减小对应第二壳体3、拉伸组件5和第一转动组件6的第一显示部9和第二显示部10的长度，可以避免第一显示部9和第二显示部10的弯折部分因没有充足空间放置而堆叠褶皱；当第一显示部9和第二显示部10外折叠时，拉伸组件5、第一转动组件6和第二壳体3靠近柔性显示组件7的一侧（外侧）的整体长度大于对应的第一显示部9和第二显示部10的总长度，通过拉伸组件5向远离第一壳体2的方向滑动带动收卷组件4转动拉伸出部分第三显示部11，以减小卷曲在收卷组件4上的第三显示部11的长度，从而增大对应第二壳体3、拉伸组件5和第一转动组件6的柔性显示组件7的长度，可以避免第一显示部9和第二显示部10因过度拉伸破裂。
若以第一壳体2对应的柔性显示组件7的面积为单位显示面积，且第一壳体2的长度分别与拉伸组件5、第一子壳体28和第二子壳体29的长度相等，则第一显示部9、第二显示部10和第三显示部11的显示面积相等，均相当于单位显示面积；那么，当拉伸组件5部拉伸出来，而拉伸组件5与第二壳体3展开时，可折叠显示装置1具有2倍单位显示面积；当第一壳体2、拉伸组件5和第二壳体3完全展开时，可折叠显示装置1具有3倍单位显示面积。需要说明的是，拉伸组件5完全拉伸出来后显示面积也可以扩大至4倍单位显示面积，具体由拉伸组件5和第一壳体2的结构决定，此处对显示面积的具体扩大倍数不做限制。
本实施例中，当可折叠显示装置1完全展开时，第一壳体2、拉伸组件5和第二壳体3相互展开，位于第一壳体2的第一收纳腔8中的柔性显示组件7（第三显示部11）被拉伸出来，使得柔性显示组件7展开在第一壳体2、拉伸组件5和第二壳体3上，有效的增大了显示面积，且收卷组件4此时为柔性显示组件7提供的弹性拉力有利于使柔性显示组件7保持平坦状态，可以提高显示效果；当可折叠显示装置1折叠收纳时，拉伸组件5与第一壳体2重叠设置，且第二壳体3和拉伸组件5折叠设置，柔性显示组件7一部分（第一显示部9和第二显示部10）折叠设置，另一部分（第三显示部11）卷曲在第一收纳腔8中，且收卷组件4和拉伸组件5可以自动调节柔性显示组件7的卷曲长度，从而调节折叠部分的柔性显示组件7的长度，避免柔性显示组件7在折叠过程中因拉伸组件5、第一转动组件6和第二壳体3表面的整体长度的变化而被损坏。
因此，本申请一方面使具有较大显示面积的可折叠显示装置1在折叠收纳时呈现出更小的体积，便于携带；另一方面，收卷组件4既可以在可折叠显示装置1展开时保持柔性显示组件7的平坦状态，也可以在可折叠显示装置1折叠时调节柔性显示组件7的卷曲长度以对柔性显示组件7的折叠部分的长度进行自动补偿，避免柔性显示组件7在折叠时被损坏；并且，可折叠显示装置1中收卷组件4和拉伸组件5的自动补偿功能可以使第一转动组件6的结构设计更加简单化，大大减小了生产成本和效率；除此之外，本申请的可折叠显示装置1具有较大显示面积和较小的收纳体积，可以作为电子地图等使用，较大的显示面积可以更清晰地看到地貌及布局，而较小的收纳体积方便携带，应用广泛。
在一实施例中，如图3所示，第一壳体2远离第二壳体3的一侧设有与第一收纳腔8连通的第一开口15；第三显示部11远离第二显示部10的一端通过第一开口15与收卷组件4连接；第一壳体2还在远离第一开口15的一侧设有第二开口16，第二开口16与第一收纳腔8连通，拉伸组件5通过第二开口16收纳于第一收纳腔8中，以与第一壳体2相互重叠设置。
具体的，第一开口15可以位于第一壳体2的上表面且远离第二壳体3的一端，也可以位于第一壳体2的侧部，具体位置此处不做限制。
具体的，拉伸组件5可以包括拉伸主体，以及设于拉伸主体的两侧的滑块（图中未示出）；第一壳体2的侧壁内部对应滑块设有滑轨，滑块可以在滑轨上滑动，使得拉伸组件5和第一壳体2滑动连接（或者，拉伸主体的两侧设有滑轨，第一壳体2的侧壁内部对应滑轨设有滑块，滑块可以在滑轨上滑动，使得拉伸组件5和第一壳体2滑动连接）；且拉伸主体远离第二壳体3的一侧与第一壳体2靠近第二壳体3的一侧设有限位结构，用于在可折叠显示装置1完全展开时，将拉伸组件5固定在第一壳体2靠近第二壳体3的一侧。拉伸组件5还可以是梳齿状结构，对应的，第一壳体2靠近柔性显示组件7的支撑结构也为梳齿状结构，第一壳体2与拉伸组件5通过梳齿状结构滑动连接，当然，拉伸组件5还可以是其他可与第一壳体2滑动连接的结构，适用于本申请构思的拉伸组件5和第一壳体2的结构均在本申请的保护范围内。
具体的，如图3和图4所示，收卷组件4包括卷簧17，卷簧17位于第一收纳腔8内且与第一壳体2连接，柔性显示组件7伸入第一收纳腔8中的一端与卷簧17连接。收卷组件4还可以包括轴线与卷簧17平行的滚轮18，滚轮18的数量可以是一个，也可以是多个；当滚轮18的数量为一个时，滚轮18位于第一开口15和卷簧17之间，第三显示部11远离第二显示部10的一端经第一开口15绕过滚轮18与卷簧17连接；当滚轮18的数量为多个时，每个滚轮18的半径大小不同，例如，如图4所示，收卷组件4还包括半径较大的第一滚轮19和半径较小的第二滚轮20，其中，第一滚轮19和第二滚轮20的轴线均与卷簧17平行，卷簧17位于第一滚轮19和第二滚轮20之间，第一滚轮19、卷簧17和第二滚轮20分别间隔设置，第一滚轮19位于第一开口15和卷簧17之间，第三显示部11远离第二显示部10的一端经第一开口15依次绕过第一滚轮19和第二滚轮20与卷簧17连接。并且，收卷组件4形成的空隙还可用于放置显示装置的系统电路板和电池，充分利用了空余空间，有利于减小第一壳体2和第二壳体3的体积大小，便于收纳。
本实施例中，当可折叠显示装置1展开时，拉伸组件5通过第二开口16向远离第一壳体2的方向滑动，带动收卷组件4朝第一方向转动（例如顺时针方向），并将第三显示部11从第一开口15拉伸出来；当可折叠显示装置1折叠时，拉伸组件5通过第二开口16向靠近第一壳体2的方向滑动，最终滑动至第一收纳腔8中，在此过程中，通过收卷组件4的自动收卷作用，收卷组件4朝第二方向转动（例如逆时针方向），将第三显示部11收卷在第一收纳腔8中。
在一实施例中，如图7所示，第一转动组件6包括并排设置的第一转轴21和第二转轴22，以及位于第一转轴21和第二转轴22两端的第一连接件23和第二连接件24，第一转轴21的两端分别与第一连接件23和第二连接件24转动连接，第二转轴22的两端分别第一连接件23和第二连接件24转动连接；拉伸组件5靠近第二壳体3的一侧与第一转轴21固定连接，第二壳体3靠近拉伸组件5的一侧与第二转轴22的两端固定连接。或者，如图8所示，第一转动组件6包括第一转轴21和位于第一转轴21两端的第一连接件23和第二连接件24，第一转轴21的两端分别与第一连接件23和第二连接件24转动连接；拉伸组件5靠近第二壳体3的一侧与第一转轴21固定连接，第二壳体3靠近拉伸组件5的一侧与第一连接件23和第二连接件24固定连接。
本实施例中，相比于通过第一转动组件6的复杂结构设计或通过壳体结构的复杂设计来补偿拉伸组件5和第二壳体3折叠在相互折叠过程中表面整体长度的技术方案相比，可折叠显示装置1中收卷组件4和拉伸组件5的自动补偿功能可以使第一转动组件6的结构设计更加简单化，大大减小了生产成本并提高了生产效率。
如图9所示，本申请实施例还提供了一种可折叠显示装置1，与上述实施例不同的在于，拉伸组件5远离第二壳体3的一侧设有第三开口25，拉伸组件5还设有与第三开口25连通的第二收纳腔26，第一壳体2通过第三开口25收纳于第二收纳腔26中，以与拉伸组件5相互重叠设置。
具体的，第一壳体2和拉伸组件5“抽屉式”滑动连接。拉伸组件5还可以是其他可与第一壳体2滑动连接的结构，适用于本申请构思的拉伸组件5和第一壳体2的结构均在本申请的保护范围内。
本实施例中，当可折叠显示装置1展开时，第一壳体2通过第三开口25向远离拉伸组件5的方向滑动，带动收卷组件4朝第一方向转动（例如顺时针方向），并将第三显示部11从第一开口15拉伸出来；当可折叠显示装置1折叠时，第一壳体2通过第三开口25向靠近拉伸组件5的方向滑动，最终滑动至第二收纳腔26中，在此过程中，通过收卷组件4的自动收卷作用，收卷组件4朝第二方向转动（例如逆时针方向），将第三显示部11收卷在第一收纳腔8中。
如图10所示，本申请实施例还提供了一种可折叠显示装置1，与上述实施例不同的在于，第二壳体3远离柔性显示组件7的一侧设有LCD（Liquid Crystal Display，液晶显示器）显示屏27。具体的，第一显示部9和第二显示部10在折叠时为内折叠状态，即第一显示部9和第二显示部10相互折叠并位于相互折叠的第二壳体3和拉伸组件5之间。LCD显示屏27可以采用刚性玻璃封装。LCD显示屏27还可以设置在第一壳体2远离柔性显示组件7的一侧，此处不做限制。
本实施例中，由于柔性显示组件7为柔性结构，可折叠显示装置1的第一显示部9和第二显示部10为内折叠，可以在收纳时将柔性显示组件7的第一显示部9和第二显示部10保护在第二壳体3和拉伸组件5之间（第三显示部11位于第一收纳腔8中被第一壳体2保护），避免柔性显示组件7被刮擦或受到外部冲击损伤；另外，在第二壳体3远离柔性显示组件7的一侧设有刚性的LCD显示屏27，在可折叠显示装置1折叠时，仍具有可操控界面，使得本申请中的可折叠显示装置1可以适用于条件苛刻的环境中，扩大了产品的应用范围。
如图11至图14所示，本申请实施例还提供了一种可折叠显示装置1，与上述实施例不同的在于，第二壳体3包括依次设置的多个子壳体，任意相邻的两个子壳体通过第二转动组件30转动连接，此处对子壳体的数量不做显示。例如，第二壳体3包括第一子壳体28、第二子壳体29以及位于第一子壳体28和第二子壳体29之间的第二转动组件30；第一子壳体28通过第二转动组件30与第二子壳体29转动连接；第一子壳体28还与第一转动组件6连接，第一子壳体28还通过第一转动组件6与拉伸组件5转动连接。
具体的，如图12所示，第一显示部9包括相邻设置的第一子显示部31和第二子显示部32，第一子显示部31位于第二显示部10和第二子显示部32之间，第一子显示部31对应第一子壳体28设置，第二子显示部32对应第二子壳体29设置。
如图12所示，当可折叠显示装置1处于第一状态（完全展开状态）时，拉伸组件5与第一壳体2相互展开设置，且第一子壳体28、第二子壳体29以及拉伸组件5均展开设置；柔性显示组件7铺设在第一子壳体28、第二子壳体29、拉伸组件5和第一壳体2的同一侧，且第一子显示部31与第一子壳体28对应，第二子显示部32与第二子壳体29对应，第二显示部10与拉伸组件5对应，第三显示部11与第一壳体2对应。
如图13所示，当可折叠显示装置1处于第二状态（完全折叠状态）时，拉伸组件5与第一壳体2相互重叠设置，第一子壳体28与拉伸组件5相互折叠设置，第二子壳体29与第一子壳体28相互折叠设置；第一子显示部31、第二子显示部32和第二显示部10铺设在第二子壳体29、第一子壳体28以及第一壳体2的同一侧，且第一子显示部31与第一子壳体28对应，第二子显示部32与第二子壳体29对应，第二显示部10与第一壳体2（或拉伸组件5）对应，第三显示部11被收卷组件4收卷于第一收纳腔8中。
具体的，第二转动组件30包括内折叠转动组件和外折叠转动组件，还包括既可以内折也可以外折的转动组件；第二转动组件30与第一转动组件6的结构可以相同，也可以不同，此处不做限制。
具体的，当可折叠显示装置1处于第二状态时，拉伸组件5、第一子壳体28和第二子壳体29可以呈Z字型堆叠设置，当然还可以是其他形式的折叠设置，此处不做限制。
如图14所示，当可折叠显示装置1处于第三状态（半展开状态）时，拉伸组件5与第一壳体2相互重叠设置，第二壳体3与拉伸组件5转动成预设夹角θ设置，第一子壳体28与第二子壳体29相互展开设置；柔性显示组件7铺设在第一壳体2、第一子壳体28、以及第二子壳体29的同一侧，第一子显示部31与第一子壳体28对应，第二子显示部32与第二子壳体29对应，第二显示部10与第一壳体2（或拉伸组件5）对应，第三显示部11被收卷组件4收卷于第一收纳腔8中。
具体的，预设夹角θ的范围为60度~120度，例如预设夹角θ为90度时，第二壳体3（包括第一子壳体28和第二子壳体29）与第一壳体2（或拉伸组件5）垂直设置，可折叠显示装置1可以将第一壳体2作为底座放置并使用，此时，第三显示部11位于第一壳体2上，可用作操作界面，例如虚拟键盘，第一字显示部位于第一子壳体28上，第二字显示部位于第二子壳体29上，第一子显示部31和第二子显示部32可以用作显示界面，方便用户多样式使用。
本实施例中，若以第一壳体2对应的柔性显示组件7的面积为单位显示面积，且第一壳体2的长度分别与拉伸组件5、第一子壳体28和第二子壳体29的长度相等，则第一子显示部31、第二子显示部32、第二显示部10和第三显示部11的显示面积相等，均相当于单位显示面积；那么，当可折叠显示装置1完全展开时，具有4倍单位显示面积，且在收纳时仅具有与单位显示面积对应的收纳面积，整体体积较小，便于携带；并且，可折叠显示组件在折叠时柔性显示组件7被折叠两次，在下次展开使用时，易出现褶皱或翘起脱离壳体的现象，不利于显示效果的提高，而本申请的收卷组件4具有自动收卷的作用，可以在柔性显示组件7展开时向柔性显示组件7提供向第一收纳腔8内收拢的拉力，有利于保证柔性显示组件7保持平坦，从而提高了显示效果；另外，柔性显示组件7在折叠过程中，拉伸组件5和收卷组件4也可以自动对折叠部分的柔性显示组件7的长度做补偿，有利于保护柔性显示组件7，且有利于简化第一转动组件6的结构，避免第一转动组件6通过复杂的结构保护折叠部分的柔性显示组件7；更重要的是，当第二壳体3包括两个以上的子壳体时，可折叠显示组件至少具有4倍单位显示面积，可以作为电子地图等使用，较大的显示面积可以更清晰地看到地貌及布局，且较小的收纳体积小方便收纳，应用广泛。
综上所述，虽然本申请已以优选实施例揭露如上，但上述优选实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种可折叠显示装置，包括内部设置有第一收纳腔的第一壳体，设置在所述第一收纳腔中的收卷组件，与所述第一壳体滑动连接的拉伸组件，与所述拉伸组件远离所述第一壳体的一端连接的第一转动组件，与所述第一转动组件连接的第二壳体，一部分设置在所述第一壳体和所述第二壳体的同一侧且另一部分伸入所述第一收纳腔中与所述收卷组件连接的柔性显示组件；其中，所述第二壳体通过所述第一转动组件与所述拉伸组件转动连接；
    当位于所述第一收纳腔中的所述柔性显示组件被拉伸出来时，所述收卷组件为所述柔性显示组件提供一个收拢的弹性拉力。
  2. 如权利要求1所述的可折叠显示装置，其中，所述柔性显示组件包括依次相邻设置的第一显示部、第二显示部和第三显示部；
    所述第一显示部设置在所述第二壳体的一侧，且所述第一显示部远离所述第二显示部的一端与所述第二壳体连接，所述第三显示部远离所述第二显示部的一端与所述收卷组件连接。
  3. 如权利要求2所述的可折叠显示装置，其中，当所述可折叠显示装置处于第一状态时，所述拉伸组件与所述第一壳体相互展开设置，且所述第二壳体和所述拉伸组件相互展开设置；
    所述柔性显示组件铺设在所述第二壳体、所述拉伸组件和所述第一壳体的同一侧，且所述第一显示部与所述第二壳体对应，所述第二显示部与所述拉伸组件对应，所述第三显示部与所述第一壳体对应。
  4. 如权利要求2所述的可折叠显示装置，其中，当所述可折叠显示装置处于第二状态时，所述拉伸组件与所述第一壳体相互重叠设置，且所述第二壳体和所述拉伸组件相互折叠设置；
    所述第一显示部和所述第二显示部铺设在所述第二壳体、所述第一壳体的同一侧，且所述第一显示部与所述第二壳体对应，所述第二显示部与所述第一壳体对应，所述第三显示部被所述收卷组件收卷于所述第一收纳腔中。
  5. 如权利要求2所述的可折叠显示装置，其中，所述第二壳体包括第一子壳体、第二子壳体以及位于所述第一子壳体和所述第二子壳体之间的第二转动组件；所述第一子壳体通过所述第二转动组件与所述第二子壳体转动连接；所述第一子壳体还与所述第一转动组件连接，所述第一子壳体还通过所述第一转动组件与所述拉伸组件转动连接。
  6. 如权利要求5所述的可折叠显示装置，其中，所述第一显示部包括相邻设置的第一子显示部和第二子显示部，所述第一子显示部位于所述第二显示部和所述第二子显示部之间，所述第一子显示部对应所述第一子壳体设置，所述第二子显示部对应所述第二子壳体设置。
  7. 如权利要求6所述的可折叠显示装置，其中，当所述可折叠显示装置处于第一状态时，所述拉伸组件与所述第一壳体相互展开设置，且所述第一子壳体、所述第二子壳体以及所述拉伸组件均展开设置；
    所述柔性显示组件铺设在所述第一子壳体、所述第二子壳体、所述拉伸组件和所述第一壳体的同一侧，且所述第一子显示部与所述第一子壳体对应，所述第二子显示部与所述第二子壳体对应，所述第二显示部与所述拉伸组件对应，所述第三显示部与所述第一壳体对应。
  8. 如权利要求6所述的可折叠显示装置，其中，当所述可折叠显示装置处于第二状态时，所述拉伸组件与所述第一壳体相互重叠设置，所述第一子壳体与所述拉伸组件相互折叠设置，所述第二子壳体与所述第一子壳体相互折叠设置；
    所述第一子显示部、所述第二子显示部和所述第二显示部铺设在所述第二子壳体、所述第一子壳体以及所述第一壳体的同一侧，且所述第一子显示部与所述第一子壳体对应，所述第二子显示部与所述第二子壳体对应，所述第二显示部与所述第一壳体对应，所述第三显示部被所述收卷组件收卷于所述第一收纳腔中。
  9. 如权利要求8所述的可折叠显示装置，其中，当所述可折叠显示装置处于所述第二状态时，所述拉伸组件、所述第一子壳体和所述第二子壳体呈Z字型堆叠设置。
  10. 如权利要求6所述的可折叠显示装置，其中，当所述可折叠显示装置处于第三状态时，所述拉伸组件与所述第一壳体相互重叠设置，所述第二壳体与所述拉伸组件转动成预设夹角设置，所述第一子壳体与所述第二子壳体相互展开设置；
    所述柔性显示组件铺设在所述第一壳体、所述第一子壳体、以及所述第二子壳体的同一侧，所述第一子显示部与所述第一子壳体对应，所述第二子显示部与所述第二子壳体对应，所述第二显示部与所述第一壳体对应，所述第三显示部被所述收卷组件收卷于所述第一收纳腔中。
  11. 如权利要求10所述的可折叠显示装置，其中，所述预设夹角的范围为60度~120度。
  12. 如权利要求2所述的可折叠显示装置，其中，所述第一壳体远离所述第二壳体的一侧设有与所述第一收纳腔连通的第一开口；所述第三显示部远离所述第二显示部的一端通过所述第一开口与所述收卷组件连接。
  13. 如权利要求12所述的可折叠显示装置，其中，所述第一壳体在远离所述第一开口的一侧设有第二开口，所述第二开口与所述第一收纳腔连通，所述拉伸组件通过所述第二开口收纳于所述第一收纳腔中，以与所述第一壳体相互重叠设置。
  14. 如权利要求12所述的可折叠显示装置，其中，所述拉伸组件远离所述第二壳体的一侧设有第三开口，所述拉伸组件还设有与所述第三开口连通的第二收纳腔，所述第一壳体通过所述第三开口收纳于所述第二收纳腔中，以与所述拉伸组件相互重叠设置。
  15. 如权利要求1所述的可折叠显示装置，其中，所述收卷组件包括卷簧，所述卷簧位于所述第一收纳腔内且与所述第一壳体连接，所述柔性显示组件伸入所述第一收纳腔中的一端与所述卷簧连接。
  16. 如权利要求15所述的可折叠显示装置，其中，所述收卷组件还包括位于所述第一收纳腔内且轴线与所述卷簧平行的滚轮；所述滚轮位于所述卷簧远离所述第二壳体的一侧，所述柔性显示组件远离所述第二壳体的一端在所述第一收纳腔中绕过所述滚轮与所述卷簧连接。
  17. 如权利要求1所述的可折叠显示装置，其中，所述第一转动组件包括并排设置的第一转轴和第二转轴，以及位于所述第一转轴和第二转轴两端的第一连接件和第二连接件，所述第一转轴的两端分别与所述第一连接件和所述第二连接件转动连接，所述第二转轴的两端分别所述第一连接件和所述第二连接件转动连接；
    所述拉伸组件靠近所述第二壳体的一侧与所述第一转轴固定连接，所述第二壳体靠近所述拉伸组件的一侧与所述第二转轴的两端固定连接。
  18. 如权利要求5所述的可折叠显示装置，其中，所述第一转动组件和所述第二转动组件的结构相同。
  19. 如权利要求1所述的可折叠显示装置，其中，所述第二壳体远离所述柔性显示组件的一侧设有LCD显示屏。
  20. 一种可折叠显示装置，包括内部设置有第一收纳腔的第一壳体，设置在所述第一收纳腔中的收卷组件，与所述第一壳体滑动连接的拉伸组件，与所述拉伸组件远离所述第一壳体的一端连接的第一转动组件，与所述第一转动组件连接的第二壳体，一部分设置在所述第一壳体和所述第二壳体的同一侧且另一部分伸入所述第一收纳腔中与所述收卷组件连接的柔性显示组件；其中，所述第二壳体通过所述第一转动组件与所述拉伸组件转动连接；
    所述柔性显示组件包括依次相邻设置的第一显示部、第二显示部和第三显示部；所述第一显示部设置在所述第二壳体的一侧，且所述第一显示部远离所述第二显示部的一端与所述第二壳体连接，所述第三显示部远离所述第二显示部的一端与所述收卷组件连接；
    当所述可折叠显示装置处于第一状态时，所述拉伸组件与所述第一壳体相互展开设置，且所述第二壳体和所述拉伸组件相互展开设置；所述柔性显示组件铺设在所述第二壳体、所述拉伸组件和所述第一壳体的同一侧，且所述第一显示部与所述第二壳体对应，所述第二显示部与所述拉伸组件对应，所述第三显示部与所述第一壳体对应；
    当所述可折叠显示装置处于第二状态时，所述拉伸组件与所述第一壳体相互重叠设置，且所述第二壳体和所述拉伸组件相互折叠设置；所述第一显示部和所述第二显示部铺设在所述第二壳体、所述第一壳体的同一侧，且所述第一显示部与所述第二壳体对应，所述第二显示部与所述第一壳体对应，所述第三显示部被所述收卷组件收卷于所述第一收纳腔中。
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