WO2021258899A1 - 显示装置 - Google Patents

显示装置 Download PDF

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Publication number
WO2021258899A1
WO2021258899A1 PCT/CN2021/093504 CN2021093504W WO2021258899A1 WO 2021258899 A1 WO2021258899 A1 WO 2021258899A1 CN 2021093504 W CN2021093504 W CN 2021093504W WO 2021258899 A1 WO2021258899 A1 WO 2021258899A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
reel
flexible
display panel
support plate
Prior art date
Application number
PCT/CN2021/093504
Other languages
English (en)
French (fr)
Inventor
罗晓飞
祝尚杰
杨艳艳
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 US17/781,091 priority Critical patent/US20230004189A1/en
Publication of WO2021258899A1 publication Critical patent/WO2021258899A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • 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
    • G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED

Definitions

  • the present disclosure relates to the field of display technology, and more particularly to a display device.
  • the development of flexible display technology has greatly promoted the development of future display technology in a more portable and diversified direction. Since the roll-up flexible display device can roll and store the flexible display screen, it can save space to the greatest extent and is convenient for users to carry, and it has become one of the hot spots in the development of display technology in the future.
  • Some embodiments of the present disclosure provide a display device, including a first housing, a first reel, a flexible display panel, and a flexible support plate, wherein the first housing is provided with an opening; the first reel may The second reel is rotatably disposed in the first housing; the second reel is rotatably disposed in the first housing, and the second reel is parallel to and spaced apart from the first reel; the flexible display panel The first end is connected to the first reel and is wound on the first reel; the first end of the flexible support plate is connected to the second reel and is wound on the second reel On; the flexible display panel and the flexible support plate are configured to: when the flexible display panel and the flexible support plate extend from the opening to the outside of the first housing, the flexible support plate can It gradually adheres to the flexible display panel to support the flexible display panel.
  • the first housing includes a first housing wall, the opening is provided on the first housing wall, and the second reel is provided on the first housing wall and the first housing wall. Between the first reel, or, the first reel is arranged between the first housing wall and the second reel; the flexible support plate is arranged from the second reel to the outside of the first housing
  • the extension direction is parallel to the extension direction of the flexible display panel from the first roll shaft to the outside of the first housing, and the flexible support plate extends from the second roll shaft to the flexible display panel. The part of the display panel protruding from the first reel is attached to it.
  • the display device further includes a first limiting member and a second limiting member disposed in the first housing, one of the first limiting member and the second limiting member A first gap is formed between the flexible display panel and the flexible support plate, and the width of the first gap is less than or equal to the width of the flexible display panel and the flexible support plate. The sum of thickness.
  • the first limiting member is a first limiting roller
  • the second limiting member is a second limiting roller
  • the first limiting roller and the second limiting roller are parallel And can be rotatably arranged in the first housing.
  • the display device further includes a third limiting member disposed in the first housing, a second gap is formed between the third limiting member and the second reel, the The flexible display panel and the flexible support plate pass through the second gap, and the width of the second gap is less than or equal to the sum of the thickness of the flexible display panel and the flexible support plate.
  • the display device further includes a first spring and a second spring; the first spring is in a spiral shape and is arranged around the first reel, and one end of the first spring is connected to The first reel is connected, and the other end is connected to the first housing; the first spring is configured such that when the first reel rotates in a first rotation direction, the first spring Can be tightened to apply a first restoring force to the first reel that can drive the first reel to rotate in a second rotation direction; wherein the first rotation direction is that the flexible display panel passes through the opening The direction of rotation of the first reel when protruding out of the first housing; the second direction of rotation is the direction opposite to the direction of the first rotation; the second spring is in a spiral shape and surrounds the The second winding shaft is set, one end of the second spring is connected with the second winding shaft, and the other end is connected with the first housing; the second spring is configured to: When the reel rotates in the third direction of rotation, the second spring can be tightened to apply a second restoring force to the second
  • the display device further includes a second housing and a display driver, the display driver is disposed in the second housing and is configured to drive the display of the flexible display panel; the flexible The second end of the display panel and the second end of the flexible support plate are both connected to the second housing; wherein, the second end of the flexible display panel is the display panel extending out of the first housing An end outside the body, and the second end of the flexible support plate is an end of the flexible support plate protruding out of the first housing.
  • a mounting groove is formed on the outer surface of one side of the housing wall of the second housing.
  • An insertion port is formed at one end of the first housing, and one end of the installation groove away from the first housing is closed; the second end of the flexible display panel and the second end of the flexible support plate are inserted by the The opening extends into the installation groove, and in the installation groove, one side surface of the flexible support plate is adhered to the groove wall of the installation groove, and the other side surface is adhered to the flexible display panel combine.
  • the display device further includes a scissor mechanism connected between the first housing and the second housing; the scissor mechanism includes a scissor mechanism opposite to the second housing along the flexible display panel
  • the ends of the two connecting rods close to the first housing are respectively hinged to the first housing, and at least one end of the connecting rod close to the first housing is configured to be able to move along the The length direction of the first reel moves relative to the first housing; in the connecting rod group adjacent to the second housing, two connecting rods have one end close to the second housing, respectively It is hinged to the second housing, and at least one end of the connecting rod close to
  • the flexible support plate includes a flexible support plate body and an adhesive film adhered to a side surface of the flexible support plate body; the adhesive film is configured to act as the flexible display panel And when the flexible support plate protrudes from the opening to the outside of the first housing, the adhesive film can gradually adhere to the flexible display panel, so that the flexible support plate and the flexible display The panels are attached to each other, and the peeling force between the adhesive film and the flexible display panel is smaller than the peeling force between the adhesive film and the flexible support plate body.
  • the peeling force between the adhesive film and the flexible display panel is less than 3 g/inch.
  • the adhesive film is an elastic film, and/or the flexible support plate body is a steel sheet.
  • the flexible display panel includes a panel body and a flexible cover plate, a surface of the panel body facing away from the display side is configured to be attached to the flexible support plate, and the flexible cover plate covers On the surface of the display side of the panel body and along the length direction of the first reel, the edge of the flexible cover is set beyond the edge of the panel body; the flexible display panel further includes an elastic support layer, so The elastic support layer is attached to the edge of the flexible cover plate, and is configured such that when the panel body is attached to the flexible support plate, the elastic support layer is located on the flexible cover plate. Between the edge and the flexible support plate to support the edge of the flexible cover plate.
  • the elastic support layer is a foam layer.
  • FIG. 1 is a schematic structural diagram of a display device according to the related art
  • FIG. 2 is a cross-sectional view of a flexible display panel of a display device in an unfolded state according to some embodiments of the present disclosure
  • FIG. 3 is a cross-sectional view of a flexible display panel in a rolled state in a display device according to some embodiments of the present disclosure
  • FIG. 4 is a cross-sectional view of the flexible display panel and the flexible support plate in the display device according to some embodiments of the present disclosure when they are attached;
  • FIG. 6 is a schematic structural diagram of the relationship between the first reel, the second reel and the opening in the display device according to other embodiments of the present disclosure
  • FIG. 7 is a perspective view of a flexible display panel of a display device in an unfolded state according to some embodiments of the present disclosure
  • FIG. 8 is a schematic structural view of the first housing of the display device in FIG. 7 after the second half housing is removed;
  • Fig. 9 is a schematic diagram of the internal structure of the first housing in Fig. 8.
  • FIG. 10 is a schematic structural diagram of a display device according to some embodiments of the present disclosure provided with a first limiting member and a second limiting member;
  • FIG. 11 is a schematic structural diagram of a display device provided with a third limiting member according to some embodiments of the present disclosure.
  • FIG. 12 is a schematic structural diagram of the positional relationship between the third limiting member and the second reel in the display device in some embodiments of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a display device arranged with a driving motor according to some embodiments of the present disclosure
  • FIG. 14 is a schematic structural diagram of arranging the first spring and the second spring according to the display device in some embodiments of the present disclosure
  • 15 is a schematic diagram of the installation structure of the first spring and the second spring in the display device in some embodiments of the present disclosure
  • FIG. 16 is a schematic structural diagram of the positions of the first mounting housing and the second mounting housing in the display device according to some embodiments of the present disclosure
  • Figure 17 is a schematic structural diagram of a scissor mechanism in a display device according to some embodiments of the present disclosure.
  • FIG. 18 is a schematic diagram of the connection structure between the scissor mechanism and the first housing and the second housing in the display device according to some embodiments of the present disclosure
  • 19 is a side view of the flexible display panel of the display device in an unfolded state according to some embodiments of the present disclosure
  • Fig. 20 is a partial enlarged view of A in Fig. 19.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features.
  • plural means two or more.
  • connection and its extensions may be used.
  • the term “connected” may be used when describing some embodiments to indicate that two or more components are in direct physical or electrical contact with each other.
  • At least one of A, B, and C has the same meaning as “at least one of A, B, or C", and both include the following combinations of A, B, and C: only A, only B, only C, A and B The combination of A and C, the combination of B and C, and the combination of A, B and C.
  • the exemplary embodiments are described herein with reference to cross-sectional views and/or plan views as idealized exemplary drawings.
  • the thickness of layers and regions are exaggerated for clarity. Therefore, variations in the shape with respect to the drawings due to, for example, manufacturing technology and/or tolerances can be envisaged. Therefore, the exemplary embodiments should not be construed as being limited to the shapes of the regions shown herein, but include shape deviations due to, for example, manufacturing. Therefore, the areas shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shape of the area of the device, and are not intended to limit the scope of the exemplary embodiments.
  • the film material of the flexible display panel has a poor recovery ability, it is easy to cause the flexible display panel to sag in the width direction (perpendicular to the direction of extension) on both sides of the flexible display panel. As a result, this not only affects the user's perception, but also when the flexible display panel is rolled into the casing of the display device, the sagging two sides of the flexible display panel are likely to interfere with the receiving opening of the casing and be damaged.
  • the related art provides a display device, as shown in FIG. 1, including a housing 01, a flexible display panel 02, and a reel 03 rotatably arranged in the housing 01.
  • the flexible display panel 02 is wound on the reel 03 and can be The opening 011 on the housing 01 extends out of the housing 01.
  • the display device also includes a bending adjustment rod 04, which is arranged at both sides of the flexible display panel 02 in the width direction.
  • the bending adjustment rod 04 can be bent and maintain a curved shape to adjust the flexible display panel 02 The curvature of curvature in the length direction.
  • the bending adjustment rod 04 can strengthen the side edges of the flexible display panel 02 to prevent the side edges of the flexible display panel 02 from sagging when the flexible display panel 02 is unfolded.
  • the bending adjustment lever 04 only strengthens the edge area of the flexible display panel 02, and the range of action is limited.
  • the central area of the flexible display panel 02 is prone to deformation, which makes the flexible display panel 02 uneven after unfolding, which affects User experience.
  • the embodiment of the present disclosure provides a display device. As shown in FIG. 2, by providing a flexible support plate 32, when the flexible display panel 31 is unfolded, the flexible support plate 32 and the flexible display panel 31 are gradually attached to each other, which can not only display the flexible display The edges on both sides of the panel 31 are supported, and the central area of the flexible display panel 31 can also be supported, so as to maintain the overall flatness of the flexible display panel 31 after unfolding.
  • some embodiments of the present disclosure provide a display device, including a first housing 1, a first reel 21 rotatably disposed in the first housing 1, and a first reel 21 rotatably disposed in the first housing 1.
  • a display device including a first housing 1, a first reel 21 rotatably disposed in the first housing 1, and a first reel 21 rotatably disposed in the first housing 1.
  • In the second reel 22 in the first housing 1 is provided with an opening 10.
  • the first housing 1 includes a first housing wall 11a and a second housing wall 11b spaced apart along the first direction X, along the second direction
  • the third housing wall 12a and the fourth housing wall 12b are arranged at intervals in Y
  • the fifth housing wall 13a and the sixth housing wall 13b are arranged at intervals in the third direction Z (as shown in FIG. 7)
  • the first direction X, the second direction Y, and the third direction Z are perpendicular to each other.
  • the first housing 1 is not limited to the structure shown in FIG. 7, and other shapes are also possible, and the details can be determined according to actual conditions.
  • the first housing 1 is formed by the first half-shell 19a and the second half-shell 19b.
  • the first half-shell 19a and the second half-shell 19b can be disassembled, and then the internal components of the first housing 1 can be replaced. After the replacement is completed, it is very convenient to align the first half-shell 19a and the second half-shell 19b together again.
  • the first reel 21 extends along the third direction Z (that is, the length direction of the first reel 21 is the same as the third direction Z), and the two ends respectively cooperate to extend into Into the first mounting holes 131 opened on the fifth housing wall 13a and the sixth housing wall 13b, so that the first reel 21 can be rotatably arranged in the first housing 1.
  • the second reel 22 extends along the third direction Z (that is, the length direction of the second reel 22 is the same as the third direction Z), and is spaced apart from the first reel 21.
  • the two ends of the second reel 22 respectively cooperate to extend into the first
  • the fifth housing wall 13a and the sixth housing wall 13b are provided in the second mounting holes 132, so that the second reel 22 can be rotatably arranged in the first housing 1.
  • the first end of the flexible display panel 31 (shown by the reference number m1 in FIG. 3) is connected to the side surface of the first reel 21 (such as bonding), and is wound around the first reel 21.
  • the second end of the flexible display panel 31 (shown by the mark m2 in FIG. 3) protrudes from the opening 10 out of the casing.
  • the first end of the flexible support plate 32 (shown by the number n1 in FIG. 3) is connected (for example, bonded) to the side surface of the second reel 22, and is wound on the second reel 22, and the second end of the flexible support plate 32 (Indicated by the reference number n2 in FIG. 3), the opening 10 protrudes out of the housing.
  • the flexible display panel 31 and the flexible support plate 32 are required to bend during the winding process.
  • the force is small, which can greatly reduce the difficulty of winding the flexible display panel 31 and the flexible support plate 32 (wound on the same reel, the thickness of both the flexible display panel 31 and the flexible support plate 32 is larger, and the two The force required for bending is greater), thereby ensuring smoother winding of the flexible display panel 31 and the flexible support plate 32.
  • the first end of the flexible display panel 31 is not limited to be connected to the side surface of the first reel 21.
  • a connecting groove may be provided on the side surface of the first reel 21, and the first end of the flexible display panel 31 extends into and connects.
  • the first end of the flexible support plate 32 is not limited to being connected to the side surface of the second reel 22.
  • a connecting groove may be provided on the side of the second reel 22, and the first end of the flexible support plate 32 extends into the connecting groove. And it is connected with the groove wall of the connecting groove.
  • the present disclosure provides the following embodiments:
  • FIG. 5 shows a specific embodiment for realizing the bonding between the flexible support plate 32 and the flexible display panel 31.
  • An opening 10 is opened on the first housing wall 11a. Along the second direction Y, the size of the opening 10 is the same as that of the flexible display panel. 31.
  • the thickness of the flexible support plate 32 is adapted to the sum of the thicknesses.
  • the first reel 21 and the second reel 22 are spaced apart along the second direction Y, and the flexible display panel 31 extends from the side of the first reel 21 close to the third housing wall 12a.
  • the first housing 1 extends outward, and the flexible support plate 32 extends from the side of the second reel 22 close to the third housing wall 12a to the outside of the first housing 1.
  • the extension direction of the flexible support plate 32 from the second roll shaft to the outside of the first housing 1 is not parallel to the extension direction of the flexible display panel 31 from the first roll shaft 21 to the outside of the first housing 1.
  • the size of the opening 10 in the second direction Y is configured to be compatible with the sum of the thicknesses of the flexible display panel 31 and the flexible support plate 32, so that when the flexible display panel 31 and the flexible support plate 32 extend from the opening 10 to the first housing 1 When extending outward, the opening 10 can squeeze the flexible display panel 31 and the flexible support plate 32 to change the direction in which the flexible display panel 31 and the flexible support plate 32 extend, so that the flexible display panel 31 and the flexible support plate 32 gradually approach and They are attached so that the flexible support plate 32 supports the flexible display panel 31.
  • the size of the opening 10 is adapted to the sum of the thickness of the flexible display panel 31 and the flexible support plate 32 means that along the second direction Y, the size of the opening 10 is consistent with that of the flexible display panel. 31.
  • the sum of the thickness of the flexible support plate 32 is equal or similar.
  • FIG. 2 shows another specific embodiment for realizing the bonding between the flexible support plate 32 and the flexible display panel 31.
  • the first housing wall 11a is provided with an opening 10
  • the second reel 22 is provided on the first housing wall 11a.
  • the first reel 21, that is, the first reel 2 and the second reel 22 are spaced apart along the first direction X, and the flexible support plate 32 extends from the second reel to the direction of extension of the first housing 1 and the flexible display panel 31.
  • the direction in which the first reel 21 extends to the outside of the first housing 1 is parallel, and the part of the flexible support plate 32 extending from the second reel 22 is attached to the part of the flexible display panel 31 extending from the first reel 21 combine.
  • the flexible display panel 31 will pass through the second reel 22 when extending from the first reel 21, and Since the extension direction of the flexible support plate 32 from the second roll axis to the outside of the first housing 1 is parallel to the extension direction of the flexible display panel 31 from the first roll shaft 21 to the outside of the first housing 1, the flexible display panel 31 is It can be attached to the part of the flexible support plate 32 protruding from the second reel 22, so there is no need to change the extension direction of the flexible display panel 31 and the flexible support plate 32 through the opening 10 to make the flexible display panel 31 and the flexible support
  • the plate 32 is attached to each other, so that the size of the opening 10 in the second direction Y can be designed to be larger, so that the flexible display panel 31 and the flexible support plate 32 can be reduced in contact with each other during the expansion and contraction process relative to the first housing 1.
  • the edge of the opening 10 touches and rubs.
  • the edge a of the first reel 21 (the side edge of the first reel 21 is close to the third housing wall 12a) and the edge b of the second reel 22 (the second reel 22 is close to the side of the third housing wall 12a).
  • Edge in the second direction Y.
  • the offset distance between the edge a of the first reel 21 and the edge b of the second reel 22 in the second direction Y can be set as The thickness of a flexible support plate 32.
  • first reel 21 and the second reel 22 can also be reversed, that is, as shown in FIG. 6, the first reel 21 is arranged between the first housing wall 11a and the second reel 22, and the 21.
  • the effect obtained after the position of the second reel 22 is reversed is the same as that before the reversal, and will not be repeated here.
  • the display device further includes a first limit set in the first housing 1.
  • the positioning member 41 and the second limiting member 42, a first gap 43 is formed between the first limiting member 41 and the second limiting member 42, and the flexible display panel 31 and the flexible supporting plate 32 pass through the first gap 43;
  • the width d of the first gap 43 is less than or equal to the sum of the thicknesses of the flexible display panel 31 and the flexible support plate 32, so that when the flexible display panel 31 and the flexible support plate 32 pass through the first gap 43, the first stop 41 and The second limiting member 42 can apply a clamping force to the flexible display panel 31 and the flexible support plate 32, so that the flexible display panel 31 and the flexible support plate 32 are tightly attached together, so that the flexible support plate 32 faces the flexible display.
  • the panel 31 forms a better support.
  • the structures of the first limiting member 41 and the second limiting member 42 are not unique.
  • the first limiting member 41 and the second limiting member 42 may both be limiting rollers, as shown in FIGS. 9 and 10,
  • a limiting member 41 is a first limiting roller
  • the second limiting member 42 is a second limiting roller.
  • the first housing 1 further includes two fixed walls arranged in the first housing 1 along the third direction Z and spaced apart from each other. 14.
  • the first limiting roller and the second limiting roller both extend along the third direction Z, and the two ends of the first limiting roller respectively cooperate to extend into the third mounting holes 141 opened on the two fixed walls 14.
  • the first Both ends of the two limiting rollers are respectively matched and extended into the fourth mounting holes 142 opened in the two fixed walls 14 to realize that the first limiting roller and the second limiting roller are rotatably arranged in the first housing 1.
  • the two ends of the first limiting roller and the second limiting roller can also be fitted into the mounting holes provided on the fifth shell wall 13a and the sixth shell wall 13b, respectively.
  • the first limiting roller and the second limiting roller can be rotatably arranged in the first housing 1.
  • first limiting member 41 and the second limiting member 42 may both be limiting rods provided in the first housing 1, and the two ends of the limiting rod are respectively connected to the two fixed walls 14 or the limiting rods. The two ends of the are respectively fixedly connected with the fifth shell wall 13a and the sixth shell wall 13b.
  • the display device further includes a third housing disposed in the first housing 1.
  • a second gap 45 is formed between the limiting member 44, the third limiting member 44 and the second reel 22, the flexible display panel 31 and the flexible supporting plate 32 pass through the second gap 45; the width d of the second gap 45 is smaller than Or equal to the sum of the thickness of the flexible display panel 31 and the flexible support plate 32.
  • the third limiting member 44 and the second reel 22 can apply a clamping force to the flexible display panel 31 and the flexible support plate 32, so that The flexible display panel 31 and the flexible support plate 32 are closely attached together, so that the flexible support plate 32 can better support the flexible display panel 31.
  • the third limiting member 44 may be a third limiting roller, the third limiting roller extends along the third direction Z, and the third limiting roller
  • the two ends of the roller respectively fit and extend into the fifth mounting holes 143 opened on the two fixed walls 14 so that the third limit roller can be rotatably arranged in the first housing 1.
  • the two ends of the third limiting roller can also be fitted into the mounting holes provided on the fifth shell wall 13a and the sixth shell wall 13b to realize the third limiting roller. It is rotatably arranged in the first housing 1.
  • the third limiting member 44 may also be a limiting rod provided in the first housing 1, and both ends of the limiting rod are fixedly connected to the two fixed walls 14 or both ends of the limiting rod are connected to the first The fifth shell wall 13a and the sixth shell wall 13b are fixedly connected.
  • the third limit roller can By rotating, the frictional resistance between the flexible display panel 31 and the flexible support plate 32 and the third limit roller during the extension process is greatly reduced, thereby ensuring smoother extension of the flexible display panel 31 and the flexible support plate 32.
  • FIG. 13 shows a specific embodiment of driving the flexible display panel 31 and the flexible support plate 32 to expand and contract with respect to the first housing 1.
  • the display device further includes a driving motor 51, a first gear 521, and a second gear. 522, the third gear 531, and the fourth gear 532;
  • the first gear 521 is fixedly sleeved on the output shaft of the drive motor 51
  • the second gear 522 is fixedly sleeved on the first reel 21 and meshes with the first gear 521
  • the fourth gear 532 is fixedly sleeved on the second reel 22, and the third gear 531 is meshed between the second gear 522 and the fourth gear 532.
  • the drive motor 51 rotates in one direction, and the first reel 21 is driven to rotate in the first rotation direction M through the first gear 521 and the second gear 522, while the second gear 522 is passed through the third gear 531 and the second gear 522.
  • the four gears 532 drive the second reel 22 to rotate in the third rotation direction U, and the first rotation direction M is consistent with the third rotation direction U.
  • the flexible display panel 31 and the flexible support plate 32 extend from the opening 10 to the outside of the first housing 1. Reach out.
  • the driving motor 51 rotates in the reverse direction, and the first reel 21 is driven to rotate in the second rotation direction N through the first gear 521 and the second gear 522, and the second gear 522 passes through the third gear 531,
  • the fourth gear 532 drives the second reel 22 to rotate in the fourth rotation direction V.
  • the second rotation direction N is consistent with the fourth rotation direction V.
  • the flexible display panel 31 is wound on the first reel 21, and the flexible support plate 32 is The second reel 22 is wound, and the flexible display panel 31 and the flexible support plate 32 are retracted into the first housing 1 through the opening 10.
  • the second end of the flexible display panel 31 and the second end of the flexible support plate 32 may be located outside the first housing 1, or may be located in the first housing 1. In the case 1, there is no specific limitation here.
  • the display device further includes a first spring 54 and a second spring 54. Clockwork 55.
  • the first spring 54 is in a spiral shape and is arranged around the first reel 21.
  • One end of the first spring 54 is connected to the first reel 21, and the other end is connected to the first housing 1;
  • a spring 54 is configured such that when the first reel 21 rotates in the first rotation direction M, the first spring 54 can be tightened to apply to the first reel 21 to drive the first reel 21 in the second rotation direction The first restoring force of N rotation.
  • the second spring 55 is in a spiral shape and is arranged around the second reel 22.
  • One end of the second spring 55 is connected to the second reel 22, and the other end is connected to the first housing 1;
  • the second spring 55 is configured such that when the second reel 22 rotates in the third rotation direction U, the second spring 55 can be tightened to apply the second reel 22 to drive the second reel 22 in the fourth rotation direction The second restoring force of V rotation.
  • the user pulls the flexible display panel 31 and the flexible support plate 32 out of the first housing 1 by hand, and the flexible display panel 31 gradually separates from the first reel 21 , And drive the first reel 21 to rotate in the first rotation direction M.
  • the first restoring member is gradually tightened to apply a first restoring force to the first reel 21;
  • the flexible support plate 32 is gradually separated from the second reel 22 , And drive the second reel 22 to rotate in the third rotation direction U, at this time, the second return member is gradually tightened to apply a second return force to the second reel 22.
  • the first reel 21 rotates in the second rotation direction N under the action of the first restoring force, and the flexible display panel 31 is gradually wound on the first reel 21
  • the second reel 22 rotates in the fourth rotation direction V under the action of the second restoring force, and the flexible support plate 32 is gradually wound on the second reel 22, so that the flexible display panel 31 and the flexible support plate 32 are directed toward the first housing Retract within the body 1.
  • the flexible display panel 31 and the flexible support plate 32 are retracted into the first housing 1 under the action of the reset force of the spring, so that no motor is required to drive, so that the structure of the display device is more improved. Simple, which in turn helps reduce the cost of the display device.
  • the number of the first spring 54 is two, and two first springs 54
  • the mainspring 54 are respectively arranged at both ends of the first reel 21. In this way, when the two first springs 54 are tightened, the first restoring force can be applied to both ends of the first reel 21 at the same time, so that the force of the first reel 21 is more balanced, so that the first reel 21 moves in the second direction of rotation. N's rotation is smoother.
  • the first spring 54 can be installed in the following manner.
  • the first housing 1 further includes a first fixed housing 15 arranged on the fixed wall 14, and the first spring 54 is arranged at In the first fixed housing 15, one end is connected to the first reel 21, and the other end is connected to the first fixed housing 15; in addition, the first fixed housing 15 may not be provided, and the first spring One end of 54 is connected to the first reel 21, and the other end is connected to the third housing wall 12a or the fourth housing wall 12b.
  • the number of the second spring 55 is two, and two second The spring 55 is respectively arranged at both ends of the second reel 22. In this way, when the two second springs 55 are tightened, the second restoring force can be applied to both ends of the second reel 22 at the same time, so that the force of the second reel 22 is more balanced, so that the second reel 22 moves in the fourth direction of rotation.
  • the rotation of V is smoother.
  • the display device in order to optimize the arrangement of the display driving components of the flexible display panel 31, as shown in FIG. 2, the display device further includes a second housing 61 and a display driver 62, and the display driver 62 is disposed in the second housing 61 , And configured to drive the display of the flexible display panel 31; the second end of the flexible display panel 31 and the second end of the flexible support plate 32 are both connected to the second housing 61.
  • the display driver 62 By arranging the display driver 62 in the second housing 61, that is, separating the display driver 62 from the first reel 21, the second reel 22 and other mechanical moving parts, not only can the display driver 62 and the first reel 21, 22 be avoided
  • the position interference of components such as the second reel 22 can also prevent the display driver 62 from being interfered by mechanical moving components such as the first reel 21 and the second reel 22, thereby ensuring the normal operation of the display driver 62; in addition, due to the flexible display panel 31
  • the second end of the flexible display panel and the second end of the flexible support plate 32 are both connected to the second housing 61, so that the second housing 61 is also equivalent to a limiting device.
  • the second housing 61 abuts against the first housing 1 to limit the flexible display panel 31 and the flexible support plate 32 to prevent the flexible display panel 31 and the flexible support plate 32 from being retracted.
  • the first housing 1 The first housing 1.
  • the display driver 62 may include a driving circuit board 621 and a power source 622 (such as a battery).
  • the driving circuit board 621 is electrically connected to the flexible display panel 31, and the power source 622 is electrically connected to the driving circuit board 621.
  • a mounting groove 611 is provided on one side of the housing wall of the second housing 61 along the expansion and contraction direction of the flexible display panel 31 relative to the first housing 1 (that is, the first direction X), the installation groove 611 is formed with an insertion port 6111 at one end close to the first housing 1, and the installation groove 611 is closed at one end away from the first housing 1.
  • the second end of the flexible display panel 31 and the second end of the flexible support plate 32 extend into the installation groove 611 from the insertion opening 6111, and in the installation groove 611, one side surface of the flexible support plate 32 (shown in FIG. 2 The lower side surface) is adhered to the groove wall of the installation groove 611, and the other side surface (the upper side surface shown in FIG.
  • the flexible display panel 31 and the flexible support plate 32 can be The flexible display panel 31 and the flexible support plate 32 are more stably arranged in the installation groove 611 to avoid shaking of the flexible display panel 31 and the flexible support plate 32 in the installation groove 611.
  • the installation groove 611 can also protect the part of the flexible display panel 31 and the flexible support plate 32 extending into the installation groove 611 to prevent the corners of the flexible display panel 31 and the flexible support plate 32 from protruding from the surface of the second housing 61 To be damaged.
  • the display device in order to prevent the flexible display panel 31 and the flexible support plate 32 from retracting into the first housing 1 under the action of the first spring 54 and the second spring 55 when unfolding, as shown in FIG. 17
  • the display device also includes a scissor mechanism 7 connected between the first housing 1 and the second housing 61.
  • the scissor mechanism 7 includes four connecting rod groups 71 arranged along the expansion and contraction direction (that is, the first direction X) of the flexible display panel 31 relative to the first housing 1, that is, the connecting rod group 71a, the connecting rod group 71a and the connecting rod group 71a.
  • the rod group 71b, the connecting rod group 71c, and the connecting rod group 71d, each connecting rod group 71 includes a connecting rod 711a and a connecting rod 711b hinged together in the middle.
  • the connecting rod 711a is provided with a first hinge shaft 72 at its end close to the first housing 1, and the connecting rod 711b is provided with a second hinge shaft 73 at its end near the first housing 1.
  • a first chute 17 and a second chute 18 spaced apart along the third direction Z are opened on the upper part. The first chute 17 and the second chute 18 both extend along the third direction Z, and the first hinge shaft 72 extends into the third direction Z.
  • a sliding groove 17 is slidably fitted with the first sliding groove 17, so that the end of the connecting rod 711a close to the first housing 1 is movably connected with the first housing 1; the second hinge shaft 73 extends into the second sliding groove 18, and slidingly fitted with the second sliding groove 18, so that the end of the connecting rod 711b close to the first housing 1 is movably connected to the first housing 1.
  • one end of the connecting rod 711a in the connecting rod group 71a is hinged with one end of the connecting rod 711b in the connecting rod group 71b, and one end of the connecting rod 711b in the connecting rod group 71a is connected to One end of the connecting rod 711a in the rod group 71b is hinged.
  • one end of the connecting rod 711a in the connecting rod group 71b is hinged with one end of the connecting rod 711b in the connecting rod group 71c, and one end of the connecting rod 711b in the connecting rod group 71b is connected to One end of the connecting rod 711a in the rod group 71b is hinged.
  • one end of the connecting rod 711a in the connecting rod group 71c is hinged with one end of the connecting rod 711b in the connecting rod group 71d, and one end of the connecting rod 711b in the connecting rod group 71c is connected to One end of the connecting rod 711a in the rod group 71d is hinged.
  • the connecting rod 711a is provided with a third hinge shaft 74 at its end close to the second housing 61, and the connecting rod 711b is provided with a fourth hinge shaft 75 at its end near the first housing 1, and the second housing 61
  • a third chute 612 and a fourth chute 613 are provided at intervals along the third direction Z.
  • the third chute 612 and the fourth chute 613 extend along the third direction Z, and the third hinge shaft 74 extends into the third direction Z.
  • the three sliding grooves 612 are slidably fitted with the third sliding grooves 612, so that the end of the connecting rod 711a close to the second housing 61 is movably connected to the second housing 61, and the fourth hinge shaft 75 extends into the fourth sliding groove 613, and slidingly fit with the fourth sliding groove 613, so that the end of the connecting rod 711b close to the second housing 61 is movably connected to the second housing 61.
  • the number of connecting rod groups 71 can be not only four, but also two, three, etc., depending on the maximum length of the flexible display panel 31 and the flexible support plate 32.
  • the connecting rod group 71a the connecting rod 711a or the end of the connecting rod 711b close to the first housing 1 can move in the third direction Z relative to the first housing 1; in the connecting rod group 71d, it may also be a connecting rod.
  • the end of the rod 711a or the connecting rod 711b close to the second housing 61 can move relative to the second housing 61 in the third direction Z.
  • the connecting rod 711a and the connecting rod 711b in each connecting rod group 71 intersect to form a certain angle ⁇ .
  • the angle ⁇ formed by the connecting rod 711a and the connecting rod 711b will become smaller. Lock, so that the flexible display panel 31 and the flexible support plate 32 are kept in a certain position, so that even if the user releases their hands, the flexible display panel 31 and the flexible support plate 32 will not be in the first spring 54 and the second spring 55.
  • the scissor mechanism 7 can be in contact with the flexible support plate 32, but in order to reduce the friction between the scissor mechanism 7 and the flexible support plate 32, as shown in Figures 19 and 20, the scissor mechanism 7 can also be in contact with the flexible support plate 32.
  • the supporting plates 32 are spaced apart, and the symbol O in FIG. 20 shows the gap between the scissor mechanism 7 and the flexible supporting plate 32.
  • the flexible support plate 32 can be bonded to the flexible display panel 31 by bonding.
  • the flexible support The board 32 includes a flexible support board body 321 and an adhesive film 322 adhered to one side surface of the flexible support board body 321.
  • the adhesive film 322 is configured to: when the flexible display panel 31 and the flexible support board 32 move from the opening 10 to the second When a housing 1 is extended, the adhesive film 322 can gradually adhere to the flexible display panel 31, so that the flexible support plate 32 is attached to the flexible display panel 31, and the adhesive film 322 and the flexible display panel 31
  • the peeling force between the adhesive film 322 and the flexible support plate body 321 is smaller than the peeling force between the adhesive film 322 and the flexible support plate body 321.
  • bonding between the flexible support plate 32 and the flexible display panel 31 is achieved by bonding, which has a simple structure and low cost.
  • the adhesive film 322 and the flexible display panel 31 The peeling force between ⁇ 3g/inch, that is, the side where the adhesive film 322 is bonded to the flexible display panel 31 is weakly adhesive, so that a small force can separate the adhesive film 322 from the flexible display panel 31 , So that the flexible display panel 31 can be smoothly wound on the first reel 21, the flexible support plate 32 can be smoothly wound on the second reel 22, and the flexible display panel 31 and the flexible support plate 32 can be retracted smoothly Inside the first housing 1.
  • the adhesive film 322 is an elastic film. Since the adhesive film 322 is an elastic film, when the flexible support plate 32 is bonded to the flexible display panel 31, if the flexible display panel 31 is pressed, the adhesive film 322 can act as a buffer, thereby avoiding The flexible display panel 31 is damaged by being pressed.
  • the adhesive film 322 may be a double-sided adhesive film.
  • the adhesive film 322 may also be a single-sided adhesive film, the adhesive surface of the single-sided adhesive film is bonded to the flexible display panel 31, and the single-sided adhesive film faces away from the adhesive surface One side is bonded to the flexible support board body 321 through the adhesive layer 323.
  • the flexible support plate body 321 is a steel sheet. Compared with other materials, the hardness of the steel sheet is relatively high, which can better support the flexible display panel 31, thereby ensuring the flatness of the flexible display panel 31. At the same time, the toughness of the steel sheet is relatively good and can be easily wound on the second reel 22.
  • the steel sheet may be a stainless steel sheet.
  • the flexible support plate 32 can also be attached to the flexible display panel 31 by magnetic adsorption, specifically as follows: one side surface of the flexible support plate 32 is provided with a first magnetic attraction layer, one of the flexible display panel 31 A second magnetic attraction layer is provided on the side surface, and the flexible display panel 31 and the flexible support plate 32 are configured to The layer and the second magnetic layer are attracted to each other, so that the flexible support plate 32 and the flexible display panel 31 are attached to each other.
  • the flexible display panel 31 includes a panel body 311 and a flexible cover 312.
  • the surface of the panel body 311 facing away from the display side (the lower surface of the panel body 311 shown in FIG. 4) is covered by
  • the flexible cover plate 312 is configured to be attached to the flexible support plate 32.
  • the flexible cover plate 312 covers the display side surface of the panel body 311 (the upper surface of the panel body 311 shown in FIG. 4), and along the third direction Z, the flexible cover plate 312 The edge of 312 is set beyond the edge of the panel body 311.
  • the edge of the flexible cover 312 is set beyond the edge of the panel body 311, that is, the edge of the flexible cover 312 is suspended, so that the edge of the flexible cover 312 is easy to sag.
  • the flexible display panel 31 further includes an elastic support layer 313, which is attached to the edge of the flexible cover plate 312, and is configured when the panel body 311 and the flexible support plate 32 are attached At the same time, the elastic support layer 313 is located between the edge of the flexible cover 312 and the flexible support plate 32 to support the edge of the flexible cover 312.
  • the elastic support layer 313 can fill the gap between the edge of the flexible cover plate 312 and the flexible support plate 32 to support the edge of the flexible cover plate 312.
  • the edge of the flexible cover 312 is prevented from sagging, and the edge of the flexible cover 312 is protected from damage by external forces.
  • the elastic support layer 313 may be a foam layer (as shown in FIG. 4) or a rubber layer, which is not specifically limited here.

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Abstract

一种显示装置，显示装置包括柔性支撑板（32），柔性显示面板（31）的第一端（m1）与第一卷轴（21）相连接，且卷绕于第一卷轴（21）上；柔性支撑板（32）的第一端（n1）与第二卷轴（22）相连接，且卷轴于第二卷轴（22）上；当柔性显示面板（31）和柔性支撑板（32）由开口向第一壳体外伸出时，柔性支撑板（32）能够逐渐与柔性显示面板（31）相贴合，以对柔性显示面板（31）支撑。

Description

显示装置
本申请要求于2020年06月22日提交的、申请号为202021168849.7的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及显示技术领域，尤其涉及一种显示装置。
背景技术
近年来，柔性显示技术的开发极大地促进了未来显示技术向更加轻便、多样化的方向发展。卷曲式柔性显示装置由于可以对柔性显示屏幕进行卷曲收纳，能够最大限度地节省空间，便于用户携带，成为未来显示技术发展的热点之一。
发明内容
本公开的一些实施例提供了一种显示装置，包括第一壳体、第一卷轴、柔性显示面板和柔性支撑板，其中，所述第一壳体上开设有开口；所述第一卷轴可转动设置于所述第一壳体中；所述第二卷轴可转动设置于所述第一壳体中，所述第二卷轴与所述第一卷轴平行且相隔设置；所述柔性显示面板的第一端与所述第一卷轴相连接，且卷绕于所述第一卷轴上；所述柔性支撑板的第一端与所述第二卷轴相连接，且卷绕于所述第二卷轴上；所述柔性显示面板和所述柔性支撑板被配置为：当所述柔性显示面板和所述柔性支撑板由所述开口向所述第一壳体外伸出时，所述柔性支撑板能够逐渐与所述柔性显示面板相贴合，以对所述柔性显示面板支撑。
在一些实施例中，所述第一壳体包括第一壳体壁，所述开口设置于所述第一壳体壁上，所述第二卷轴设置于所述第一壳体壁与所述第一卷轴之间，或者，所述第一卷轴设置于所述第一壳体壁与所述第二卷轴之间；所述柔性支撑板由所述第二卷轴向所述第一壳体外的伸出方向与所述柔性显示面板由所述第一卷轴向所述第一壳体外的伸出方向相平行，并且所述柔性支撑板从所述第二卷轴上伸出的部分与所述柔性显示面板从所述第一卷轴伸出的部分相贴合。
在一些实施例中，所述显示装置还包括设置于所述第一壳体中的第一限位件和第二限位件，所述第一限位件和所述第二限位件之间形成第一间隙，所述柔性显示面板、所述柔性支撑板从所述第一间隙中穿过，且所述第一间隙的宽度小于或等于所述柔性显示面板、所述柔性支撑板的厚度之和。
在一些实施例中，所述第一限位件为第一限位辊，所述第二限位件为第二限位辊，所述第一限位辊和所述第二限位辊平行设置，且均可转动设置于所述 第一壳体中。
在一些实施例中，所述显示装置还包括设置于所述第一壳体中的第三限位件，所述第三限位件与所述第二卷轴之间形成第二间隙，所述柔性显示面板、所述柔性支撑板从所述第二间隙中穿过，且所述第二间隙的宽度小于或等于所述柔性显示面板、所述柔性支撑板的厚度之和。
在一些实施例中，所述第三限位件为第三限位辊，所述第三限位辊可转动设置于所述第一壳体中，且与所述第二卷轴平行设置。
在一些实施例中，所述显示装置还包括第一发条和第二发条；所述第一发条呈螺旋状，且围绕所述第一卷轴设置，所述第一发条的一端与所述第一卷轴相连接，另一端与所述第一壳体相连接；所述第一发条被配置为：当所述第一卷轴沿第一转动方向转动时，所述第一发条可被上紧，以向所述第一卷轴施加可驱动所述第一卷轴沿第二转动方向转动的第一复位力；其中，所述第一转动方向为所述柔性显示面板由所述开口向所述第一壳体外伸出时所述第一卷轴的转动方向；所述第二转动方向为与所述第一转动方向相反的方向；所述第二发条呈螺旋状，且围绕所述第二卷轴设置，所述第二发条的一端与所述第二卷轴相连接，另一端与所述第一壳体相连接；所述第二发条被配置为：当所述第二卷轴沿第三转动方向转动时，所述第二发条可被上紧，以向所述第二卷轴施加可驱动所述第二卷轴沿第四转动方向转动的第二复位力；其中，所述第三转动方向为所述柔性支撑板由所述开口向所述第一壳体外伸出时所述第二卷轴的转动方向；所述第四转动方向为与所述第三转动方向相反的方向。
在一些实施例中，所述显示装置还包括第二壳体以及显示驱动器，所述显示驱动器设置于所述第二壳体中，且被配置为驱动所述柔性显示面板的显示；所述柔性显示面板的第二端、所述柔性支撑板的第二端均连接于所述第二壳体上；其中，所述柔性显示面板的第二端为所述显示面板伸出所述第一壳体外的一端，所述柔性支撑板的第二端为所述柔性支撑板伸出所述第一壳体外的一端。
在一些实施例中，所述第二壳体的一侧壳体壁的外表面上开设有安装槽，沿所述柔性显示面板相对所述第一壳体的伸缩方向，所述安装槽靠近所述第一壳体的一端形成有插入口，所述安装槽远离所述第一壳体的一端封闭；所述柔性显示面板的第二端、所述柔性支撑板的第二端由所述插入口伸入所述安装槽中，且在所述安装槽中，所述柔性支撑板的一侧表面与所述安装槽的槽壁相粘接，另一侧表面与所述柔性显示面板相贴合。
在一些实施例中，所述显示装置还包括连接于所述第一壳体和所述第二壳 体之间的剪叉机构；所述剪叉机构包括沿所述柔性显示面板相对所述第一壳体的伸缩方向排列的多个连接杆组，每个所述连接杆组均包括两个中部铰接在一起的连接杆；在相邻的两个所述连接杆组中，一个所述连接杆组中两个所述连接杆的一端分别与另一个所述连接杆组中两个所述连接杆的一端一一对应铰接；在与所述第一壳体相邻的所述连接杆组中，两个所述连接杆靠近所述第一壳体的一端分别与所述第一壳体铰接，且至少有一个所述连接杆靠近所述第一壳体的一端被配置为可沿所述第一卷轴的长度方向相对所述第一壳体移动；在与所述第二壳体相邻的所述连接杆组中，两个所述连接杆靠近所述第二壳体的一端分别与所述第二壳体铰接，且至少有一个所述连接杆靠近所述第二壳体的一端被配置为可沿所述第一卷轴的长度方向相对所述第二壳体移动。
在一些实施例中，所述柔性支撑板包括柔性支撑板本体以及粘接于所述柔性支撑板本体的一侧表面的粘接膜；所述粘接膜被配置为：当所述柔性显示面板和所述柔性支撑板由所述开口向所述第一壳体外伸出时，所述粘接膜能够逐渐与所述柔性显示面板相粘接，以使所述柔性支撑板与所述柔性显示面板相贴合，并且所述粘接膜与所述柔性显示面板之间的剥离力小于所述粘接膜与所述柔性支撑板本体之间的剥离力。
在一些实施例中，所述粘接膜与所述柔性显示面板之间的剥离力<3g/inch。
在一些实施例中，所述粘接膜为弹性膜，和/或，所述柔性支撑板本体为钢片。
在一些实施例中，所述柔性显示面板包括面板本体和柔性盖板，所述面板本体背离显示侧的一侧表面被配置为与所述柔性支撑板相贴合，所述柔性盖板覆盖于所述面板本体的显示侧的表面上，且沿所述第一卷轴的长度方向，所述柔性盖板的边缘超出所述面板本体的边缘设置；所述柔性显示面板还包括弹性支撑层，所述弹性支撑层贴覆于所述柔性盖板的所述边缘处，且被配置为当所述面板本体与所述柔性支撑板相贴合时，所述弹性支撑层位于所述柔性盖板的所述边缘与所述柔性支撑板之间，以对所述柔性盖板的所述边缘支撑。
在一些实施例中，所述弹性支撑层为泡棉层。
附图说明
为了更清楚地说明本公开中的技术方案，下面将对本公开一些实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例的附图，对于本领域普通技术人员来讲，还可以根据这些附图获得其他的附图。此外，以下描述中的附图可以视作示意图，并非对本公开实施例所涉及的产品的实际尺寸、方法的实际流程、信号的 实际时序等的限制。
图1为根据相关技术中的一种显示装置的结构示意图；
图2为根据本公开一些实施例中的显示装置的柔性显示面板处于展开状态的截面图；
图3为根据本公开一些实施例中的显示装置中柔性显示面板处于卷曲状态的截面图；
图4为根据本公开一些实施例中的显示装置中柔性显示面板与柔性支撑板贴合时的截面图；
图5为根据本公开一些实施例中的显示装置中第一卷轴、第二卷轴与开口之间关系的结构示意图；
图6为根据本公开另一些实施例中的显示装置中第一卷轴、第二卷轴与开口之间关系的结构示意图；
图7为根据本公开一些实施例中的显示装置的柔性显示面板处于展开状态的立体图；
图8为图7中的显示装置的第一壳体拆去第二半壳体后的结构示意图；
图9为图8中第一壳体内部结构示意图；
图10为根据本公开一些实施例中的显示装置设置第一限位件和第二限位件的结构示意图；
图11为根据本公开一些实施例中的显示装置设置第三限位件的结构示意图；
图12为根据本公开一些实施例中的显示装置中第三限位件与第二卷轴之间位置关系的结构示意图；
图13为根据本公开一些实施例中的显示装置布置驱动电机的结构示意图；
图14为根据本公开一些实施例中的显示装置布置第一发条和第二发条的结构示意图；
图15为根据本公开一些实施例中的显示装置中第一发条、第二发条的安装结构示意图；
图16为根据本公开一些实施例中的显示装置中第一安装壳体和第二安装壳体设置位置的结构示意图；
图17为根据本公开一些实施例中的显示装置中剪叉机构的结构示意图；
图18为根据本公开一些实施例中的显示装置中剪叉机构与第一壳体、第二壳体的连接结构示意图；
图19为根据本公开一些实施例中的显示装置的柔性显示面板处于展开状态的侧视图；
图20为图19中A处的局部放大图。
具体实施方式
下面将结合附图，对本公开一些实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开所提供的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开保护的范围。
除非上下文另有要求，否则，在整个说明书和权利要求书中，术语“包括(comprise)”及其其他形式例如第三人称单数形式“包括(comprises)”和现在分词形式“包括(comprising)”被解释为开放、包含的意思，即为“包含，但不限于”。在说明书的描述中，术语“一个实施例(one embodiment)”、“一些实施例(some embodiments)”、“示例性实施例(exemplary embodiments)”、“示例(example)”、“特定示例(specific example)”或“一些示例(some examples)”等旨在表明与该实施例或示例相关的特定特征、结构、材料或特性包括在本公开的至少一个实施例或示例中。上述术语的示意性表示不一定是指同一实施例或示例。此外，所述的特定特征、结构、材料或特点可以以任何适当方式包括在任何一个或多个实施例或示例中。
以下，术语“第一”、“第二”仅用于描述目的，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。在本公开实施例的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在描述一些实施例时，可能使用了“连接”及其衍伸的表达。例如，描述一些实施例时可能使用了术语“连接”以表明两个或两个以上部件彼此间有直接物理接触或电接触。
“A、B和C中的至少一个”与“A、B或C中的至少一个”具有相同含义，均包括以下A、B和C的组合：仅A，仅B，仅C，A和B的组合，A和C的组合，B和C的组合，及A、B和C的组合。
“A和/或B”，包括以下三种组合：仅A，仅B，及A和B的组合。
本文中“适用于”或“被配置为”的使用意味着开放和包容性的语言，其不排除适用于或被配置为执行额外任务或步骤的设备。
另外，“基于”的使用意味着开放和包容性，因为“基于”一个或多个所述条件或值的过程、步骤、计算或其他动作在实践中可以基于额外条件或超出所述的值。
本文参照作为理想化示例性附图的剖视图和/或平面图描述了示例性实施方式。在附图中，为了清楚，放大了层和区域的厚度。因此，可设想到由于例如制造技术和/或公差引起的相对于附图的形状的变动。因此，示例性实施方式不应解释为局限于本文示出的区域的形状，而是包括因例如制造而引起的形状偏差。因此，附图中所示的区域本质上是示意性的，且它们的形状并非旨在示出设备的区域的实际形状，并且并非旨在限制示例性实施方式的范围。
目前可卷曲式显示装置在展平柔性显示面板时，由于柔性显示面板的膜材恢复能力比较差，容易造成柔性显示面板在宽度方向(垂直于伸出方向)上两侧边缘下垂、中间部分凸起，这样不但影响了用户的观感，而且在将柔性显示面板收卷至显示装置的壳体中时，柔性显示面板下垂的两侧边缘容易与壳体的收纳开口发生干涉而损坏。
相关技术提供了一种显示装置，如图1所示，包括壳体01、柔性显示面板02以及可转动设置于壳体01中的卷轴03，柔性显示面板02卷绕于卷轴03上，并能够由壳体01上的开口011向壳体01外伸出。该显示装置还包括弯曲调节杆04，弯曲调节杆04设置于柔性显示面板02在宽度方向上的两侧边缘处，弯曲调节杆04可以进行弯曲并保持弯曲的形状，以调节柔性显示面板02在长度方向上的弯曲曲率。
相关技术中的这种显示装置，如图1所示，弯曲调节杆04可以对柔性显示面板02的两侧边缘起到加强的作用，以避免柔性显示面板02在展开时两侧边缘下垂。然而，弯曲调节杆04只是对柔性显示面板02的边缘区域起到加强的作用，作用范围有限，柔性显示面板02的中心区域容易出现变形，从而使得柔性显示面板02在展开后不平整，影响了用户的使用体验。
本公开实施例提供了一种显示装置，如图2所示，通过设置柔性支撑板32，在柔性显示面板31展开时，柔性支撑板32与柔性显示面板31逐渐贴合，不但可以对柔性显示面板31两侧边缘进行支撑，也可以对柔性显示面板31的中心区域进行支撑，从而保持柔性显示面板31展开后的整体的平整性。
如图2所示，本公开一些实施例提供了一种显示装置，包括第一壳体1、可转动设置于第一壳体1中的第一卷轴21、可转动设置于第一壳体1 中的第二卷轴22，第一壳体1上开设有开口10。
如图2和图7所示所示，在一些实施例中，第一壳体1包括沿第一方向X相隔排布的第一壳体壁11a和第二壳体壁11b、沿第二方向Y相隔排布的第三壳体壁12a和第四壳体壁12b、以及沿第三方向Z相隔排布的第五壳体壁13a和第六壳体壁13b(如图7所示)，其中，第一方向X、第二方向Y以及第三方向Z两两相垂直。
当然，第一壳体1也不限于图7所示的结构，其它形状也均可，具体可根据实际情况而定。
在一些实施例中，为了便于第一壳体1内的部件的拆装，如图7所示，第一壳体1由第一半壳体19a和第二半壳体19b对合而成。这样当第一壳体内的部件(比如第一卷轴21)发生损坏需要更换时，可以将第一半壳体19a和第二半壳体19b拆开，然后进行第一壳体1内部件的更换，更换完毕后将第一半壳体19a和第二半壳体19b重新对合在一起，非常方便。
如图8和图9所示，在一些实施例中，第一卷轴21沿第三方向Z延伸(也就是第一卷轴21的长度方向与第三方向Z相同)，且两端分别配合伸入到第五壳体壁13a、第六壳体壁13b上所开设的第一安装孔131中，从而使第一卷轴21可转动设置于第一壳体1中。
第二卷轴22沿第三方向Z延伸(也就是第二卷轴22的长度方向与第三方向Z相同)，且与第一卷轴21相隔设置，第二卷轴22的两端分别配合伸入到第五壳体壁13a、第六壳体壁13b上所开设的第二安装孔132中，从而使第二卷轴22可转动设置于第一壳体1中。
当然，第一卷轴21、第二卷轴22也不限于上述可转动连接结构，比如第一卷轴21、第二卷轴22的两端也可以分别通过轴承与第五壳体壁13a、第六壳体壁13b相连接，具体可根据实际情况而定。
如图3所示，在一些实施例中，柔性显示面板31的第一端(图3中标号m1所示)与第一卷轴21的侧面相连接(比如粘接)，且卷绕于第一卷轴21上，柔性显示面板31的第二端(图3中标号m2所示)由开口10伸出壳体外。柔性支撑板32的第一端(图3中标号n1所示)与第二卷轴22的侧面相连接(比如粘接)，且卷绕于第二卷轴22上，柔性支撑板32的第二端(图3中标号n2所示)由开口10伸出壳体外。通过将柔性显示面板31、柔性支撑板32分别卷绕于不同的卷轴上，相较于卷绕于相同的卷轴上，这样在卷绕时柔性显示面板31、柔性支撑板32发生弯曲所需要的力较小，从而可以大大降低柔性显示面板31、柔性支撑板32的卷绕的难度(卷 绕于同一个卷轴上，柔性显示面板31、柔性支撑板32两者厚度较大，卷绕时两者发生弯曲所需要的力较大)，进而保证柔性显示面板31、柔性支撑板32的卷绕更加顺畅。
当然，柔性显示面板31的第一端也不限于与第一卷轴21的侧面相连接，比如，也可以在第一卷轴21的侧面上开设连接槽，柔性显示面板31的第一端伸入连接槽中且与连接槽的槽壁相连接。柔性支撑板32的第一端也不限于与第二卷轴22的侧面相连接，比如，也可以在第二卷轴22的侧面上开设连接槽，柔性支撑板32的第一端伸入连接槽中且与连接槽的槽壁相连接。
在柔性显示面板31、柔性支撑板32由开口10向第一壳体1外伸出时，为了能够实现柔性支撑板32与柔性显示面板31之间的贴合，本公开提供以下实施例：
图5所示为实现柔性支撑板32与柔性显示面板31之间贴合的一个具体实施例，第一壳体壁11a上开设开口10，沿第二方向Y，开口10的尺寸与柔性显示面板31、柔性支撑板32的厚度之和相适应，第一卷轴21、第二卷轴22沿第二方向Y相隔设置，柔性显示面板31从第一卷轴21靠近第三壳体壁12a的一侧向第一壳体1外伸出，柔性支撑板32从第二卷轴22靠近第三壳体壁12a的一侧向第一壳体1外伸出。在该实施例中，柔性支撑板32由第二卷轴向第一壳体1外的伸出方向与柔性显示面板31由第一卷轴21向第一壳体1外的伸出方向不平行，通过将开口10在第二方向Y上的尺寸配置为与柔性显示面板31、柔性支撑板32的厚度之和相适应，这样当柔性显示面板31、柔性支撑板32由开口10向第一壳体1外伸出时，开口10可以挤压柔性显示面板31、柔性支撑板32，以改变柔性显示面板31、柔性支撑板32的伸出方向，从而使柔性显示面板31、柔性支撑板32逐渐靠近并相贴合，使得柔性支撑板32对柔性显示面板31形成支撑。
其中，如图5所示，沿第二方向Y，开口10的尺寸与柔性显示面板31、柔性支撑板32的厚度之和相适应是指沿第二方向Y，开口10的尺寸与柔性显示面板31、柔性支撑板32的厚度之和相等或相近。
图2所示为实现柔性支撑板32与柔性显示面板31之间的贴合的另一个具体实施例，第一壳体壁11a上开设开口10，第二卷轴22设置于第一壳体壁11a与第一卷轴21之间，也就是第一卷轴2和第二卷轴22沿第一方向X相隔设置，柔性支撑板32由第二卷轴向第一壳体1外的伸出方向 与柔性显示面板31由第一卷轴21向第一壳体1外的伸出方向相平行，柔性支撑板32从第二卷轴22上伸出的部分与柔性显示面板31从第一卷轴21伸出的部分相贴合。在该实施例中，由于第二卷轴22位于第一卷轴21和第一壳体壁11a之间，这样柔性显示面板31在从第一卷轴21上伸出时就会经过第二卷轴22，又由于柔性支撑板32由第二卷轴向第一壳体1外的伸出方向与柔性显示面板31由第一卷轴21向第一壳体1外的伸出方向相平行，这样柔性显示面板31就可以与柔性支撑板32从第二卷轴22上伸出的部分相贴合，那么就无需通过开口10来改变柔性显示面板31和柔性支撑板32的伸出方向来使柔性显示面板31和柔性支撑板32相贴合，由此开口10在第二方向Y上的尺寸就可以设计得大一些，从而可以减小柔性显示面板31和柔性支撑板32在相对第一壳体1伸缩的过程中与开口10边沿接触摩擦。
其中，可以通过调整第一卷轴21的边缘a(第一卷轴21靠近第三壳体壁12a一侧边缘)与第二卷轴22的边缘b(第二卷轴22靠近第三壳体壁12a一侧边缘)在第二方向Y上的错开距离来实现，比如，如图2所示，可以将第一卷轴21的边缘a与第二卷轴22的边缘b在第二方向Y上的错开距离设置为一个柔性支撑板32的厚度。
当然，第一卷轴21、第二卷轴22的位置也可以对调，也就是：如图6所示，第一卷轴21设置于第一壳体壁11a与第二卷轴22之间，在第一卷轴21、第二卷轴22的位置对调后与对调前所取得的效果相同，在此不再赘述。
如图2和图6所示，柔性显示面板31在由开口10向第一壳体1外伸出的过程中，为了保证柔性支撑板32能够与柔性显示面板31更紧密地贴合在一起，本公开提供了以下所述实施例。
图9和图10所示为使柔性支撑板32与柔性显示面板31贴合更紧密的一个具体实施例，在该实施例中，显示装置还包括设置于第一壳体1中的第一限位件41和第二限位件42，第一限位件41和第二限位件42之间形成第一间隙43，柔性显示面板31、柔性支撑板32从第一间隙43中穿过；第一间隙43的宽度d小于或等于柔性显示面板31、柔性支撑板32的厚度之和，这样柔性显示面板31、柔性支撑板32从第一间隙43中穿过时，第一限位件41和第二限位件42就可以对柔性显示面板31、柔性支撑板32施加一个夹紧力，从而使柔性显示面板31、柔性支撑板32紧密地贴合在一起，使柔性支撑板32对柔性显示面板31形成更好的支撑。
第一限位件41和第二限位件42的结构不唯一，比如，第一限位件41、第二限位件42可以均为限位辊，如图9和图10所示，第一限位件41为第一限位辊，第二限位件42为第二限位辊，第一壳体1还包括沿第三方向Z相隔设置于第一壳体1中两个固定壁14，第一限位辊、第二限位辊均沿第三方向Z延伸，第一限位辊的两端分别配合伸入两个固定壁14上所开设的第三安装孔141中，第二限位辊的两端分别配合伸入两个固定壁14所开设的第四安装孔142中，以实现第一限位辊、第二限位辊可转动设置于第一壳体1中。
当然，除了上述结构之外，第一限位辊、第二限位辊的两端也可以分别配合伸入第五壳体壁13a、第六壳体壁13b上所开设的安装孔中，以实现第一限位辊、第二限位辊可转动设置于第一壳体1中。
另外，第一限位件41、第二限位件42也可以均为设置于第一壳体1中的限位杆，限位杆的两端分别与两个固定壁14连接或者限位杆的两端分别与第五壳体壁13a和第六壳体壁13b固定连接。相较于限位杆，第一限位件41、第二限位件42均为限位辊时，由于在柔性显示面板31、柔性支撑板32向第一壳体1外伸出时，第一限位辊、第二限位辊均可以转动，这样大大减少了柔性显示面板31、柔性支撑板32在伸出过程中与第一限位辊、第二限位辊的摩擦阻力，从而保证柔性显示面板31、柔性支撑板32的伸出更加顺畅。
图11和图12所示为使柔性支撑板32与柔性显示面板31贴合更紧密的另一个具体实施例，在该实施例中，显示装置还包括设置于第一壳体1中的第三限位件44，第三限位件44与第二卷轴22之间形成第二间隙45，柔性显示面板31、柔性支撑板32从第二间隙45中穿过；第二间隙45的宽度d小于或等于柔性显示面板31、柔性支撑板32的厚度之和。这样柔性显示面板31、柔性支撑板32从第二间隙45中穿过时，第三限位件44和第二卷轴22就可以对柔性显示面板31、柔性支撑板32施加一个夹紧力，从而使柔性显示面板31、柔性支撑板32紧密地贴合在一起，使柔性支撑板32对柔性显示面板31形成更好的支撑。
第三限位件44的结构不唯一，比如，如图12所示，第三限位件44可以为第三限位辊，第三限位辊沿第三方向Z延伸，且第三限位辊的两端分别配合伸入两个固定壁14上所开设的第五安装孔143中，以使第三限位辊可转动设置于第一壳体1中。当然，除了上述结构之外，第三限位辊的两端也可以分别配合伸入第五壳体壁13a、第六壳体壁13b上所开设的 安装孔中，以实现第三限位辊可转动设置于第一壳体1中。
另外，第三限位件44也可以均为设置于第一壳体1中的限位杆，限位杆的两端分别与两个固定壁14固定连接或者限位杆的两端分别与第五壳体壁13a和第六壳体壁13b固定连接。相较于限位杆，第三限位件44为第三限位辊时，由于在柔性显示面板31、柔性支撑板32向第一壳体1外伸出时，第三限位辊均可以转动，这样大大减少了柔性显示面板31、柔性支撑板32在伸出过程中与第三限位辊的摩擦阻力，从而保证柔性显示面板31、柔性支撑板32的伸出更加顺畅。
在该显示装置中，驱动柔性显示面板31、柔性支撑板32相对第一壳体1伸缩的方式不唯一。
图13所示为驱动柔性显示面板31、柔性支撑板32相对第一壳体1伸缩的一个具体实施例，在该实施例中，显示装置还包括驱动电机51、第一齿轮521、第二齿轮522、第三齿轮531以及第四齿轮532；第一齿轮521固定套设于驱动电机51的输出轴上，第二齿轮522固定套设于第一卷轴21上，且与第一齿轮521相啮合，第四齿轮532固定套设于第二卷轴22上，第三齿轮531啮合于第二齿轮522和第四齿轮532之间。
当需要使用该显示装置时，驱动电机51朝一方向转动，通过第一齿轮521、第二齿轮522驱动第一卷轴21沿第一转动方向M转动，同时第二齿轮522通过第三齿轮531、第四齿轮532驱动第二卷轴22沿第三转动方向U转动，第一转动方向M与第三转动方向U一致，此时柔性显示面板31、柔性支撑板32由开口10向第一壳体1外伸出。
当该显示装置使用完毕时，驱动电机51朝反向转动，通过第一齿轮521、第二齿轮522驱动第一卷轴21沿第二转动方向N转动，同时第二齿轮522通过第三齿轮531、第四齿轮532驱动第二卷轴22沿第四转动方向V转动，第二转动方向N与第四转动方向V一致，此时柔性显示面板31向第一卷轴21上卷绕，柔性支撑板32向第二卷轴22上卷绕，柔性显示面板31、柔性支撑板32由开口10向第一壳体1内缩回。
其中，该显示装置在初始状态(也就是未使用时的状态)时，柔性显示面板31的第二端、柔性支撑板32的第二端可以位于第一壳体1外，也可以位于第一壳体1中，在此不做具体限定。
图14和图15所示为驱动柔性显示面板31、柔性支撑板32相对第一壳体1伸缩的另一个具体实施例，在该实施例中，显示装置还包括第一发条54和第二发条55。
如图15所示，第一发条54呈螺旋状，且围绕第一卷轴21设置，第一发条54的一端与第一卷轴21相连接，另一端与第一壳体1相连接；第一发条54被配置为：当第一卷轴21沿第一转动方向M转动时，第一发条54可被上紧，以向第一卷轴21施加可驱动第一卷轴21沿第二转动方向N转动的第一复位力。
如图15所示，第二发条55呈螺旋状，且围绕第二卷轴22设置，第二发条55的一端与第二卷轴22相连接，另一端与第一壳体1相连接；第二发条55被配置为：当第二卷轴22沿第三转动方向U转动时，第二发条55可被上紧，以向第二卷轴22施加可驱动第二卷轴22沿第四转动方向V转动的第二复位力。
如图14和图15所示，当需要使用该显示装置时，用户通过手将柔性显示面板31、柔性支撑板32向第一壳体1外拉出，柔性显示面板31逐渐脱离第一卷轴21，并且带动第一卷轴21沿第一转动方向M转动，此时第一复位件逐渐被上紧，以向第一卷轴21施加第一复位力；同时，柔性支撑板32逐渐脱离第二卷轴22，并且带动第二卷轴22沿第三转动方向U转动，此时第二复位件逐渐被上紧，以向第二卷轴22施加第二复位力。
如图14和图15所示，当该显示装置使用完毕时，第一卷轴21在第一复位力的作用下沿第二转动方向N转动，柔性显示面板31逐渐向第一卷轴21上卷绕，第二卷轴22在第二复位力的作用下沿第四转动方向V转动，柔性支撑板32逐渐向第二卷轴22上卷绕，以使柔性显示面板31、柔性支撑板32向第一壳体1内缩回。
在该实施例中，柔性显示面板31、柔性支撑板32是在发条的复位力的作用下缩回第一壳体1中，这样就无需使用电机的驱动，从而使得该显示装置的结构更加简单，进而有利于降低该显示装置的成本。
在一些实施例中，为了使第一发条54更好地驱动第一卷轴21沿第二转动方向N转动，如图14所示，第一发条54的数目为两个，两个第一发条54分别设置于第一卷轴21的两端处。这样两个第一发条54上紧时就可以同时向第一卷轴21的两端施加第一复位力，使第一卷轴21的受力更加平衡，从而使第一卷轴21沿第二转动方向N的转动更加顺畅。
其中，第一发条54可以采用以下方式安装，如图14和图16所示，第一壳体1还包括设置于固定壁14上的第一固定壳体15，第一发条54设置于第一固定壳体15中，且一端与第一卷轴21相连接，另一端与第一固定壳体15相连接；除此之外，也可以不设置第一固定壳体15，第一发 条54的一端与第一卷轴21相连接，另一端与第三壳体壁12a或第四壳体壁12b相连接。
在一些实施例中，为了使第二发条55更好地驱动第二卷轴22沿第四转动方向V转动，如图14所示，第二发条55的数目为两个，两个第二发条55分别设置于第二卷轴22的两端处。这样两个第二发条55上紧时就可以同时向第二卷轴22的两端施加第二复位力，使第二卷轴22的受力更加平衡，从而使第二卷轴22沿第四转动方向V的转动更加顺畅。
其中，第二发条55可以采用以下方式安装，如图14和图16所示，第一壳体1还包括设置于固定壁14上的第二固定壳体16，第二发条55设置于第二固定壳体16中，且一端与第二卷轴22相连接，另一端与第二固定壳体16相连接；除此之外，也可以不设置第二固定壳体16，第二发条55的一端与第二卷轴22相连接，另一端与第三壳体壁12a或第四壳体壁12b相连接。
在一些实施例中，为了优化柔性显示面板31的显示驱动部件的设置，如图2所示，显示装置还包括第二壳体61以及显示驱动器62，显示驱动器62设置于第二壳体61中，且被配置为驱动柔性显示面板31的显示；柔性显示面板31的第二端、柔性支撑板32的第二端均连接于第二壳体61上。通过将显示驱动器62设置于第二壳体61中，也就是将显示驱动器62与第一卷轴21、第二卷轴22等机械运动部件分开设置，这样不但可以避免显示驱动器62与第一卷轴21、第二卷轴22等部件发生位置干涉，而且还可以避免显示驱动器62受到第一卷轴21、第二卷轴22等机械运动部件的干扰，从而保证显示驱动器62的正常工作；另外，由于柔性显示面板31的第二端、柔性支撑板32的第二端均连接于第二壳体61上，这样第二壳体61也相当于一个限位装置，当柔性显示面板31、柔性支撑板32缩回第一壳体1中时，第二壳体61与第一壳体1相抵接，以对柔性显示面板31、柔性支撑板32进行限位，避免柔性显示面板31、柔性支撑板32全部缩回到第一壳体1中。
其中，如图2所示，显示驱动器62可以包括驱动电路板621以及电源622(比如电池)，驱动电路板621与柔性显示面板31电连接，电源622与驱动电路板621电连接。
在一些实施例中，如图2所示，第二壳体61的一侧壳体壁上开设有安装槽611，沿柔性显示面板31相对第一壳体1的伸缩方向(也就是第一方向X)，安装槽611靠近第一壳体1的一端形成有插入口6111，安 装槽611远离第一壳体1的一端封闭。柔性显示面板31的第二端、柔性支撑板32的第二端由插入口6111伸入安装槽611中，且在安装槽611中，柔性支撑板32的一侧表面(图2中所示的下侧表面)与安装槽611的槽壁相粘接，另一侧表面(图2中所示的上侧表面)与柔性显示面板31相贴合。由于在安装槽611中柔性支撑板32的一侧表面与安装槽611的槽底相粘接，另一侧表面与柔性显示面板31相贴合，这样可以使柔性显示面板31、柔性支撑板32更加稳固地设置于安装槽611中，避免柔性显示面板31、柔性支撑板32在安装槽611中发生晃动。另外，安装槽611也可对柔性显示面板31、柔性支撑板32伸入安装槽611中的部分进行保护，避免柔性显示面板31、柔性支撑板32的棱角凸出于第二壳体61的表面以受到损坏。
在一些实施例中，为了避免柔性显示面板31、柔性支撑板32在展开时在第一发条54、第二发条55的作用下缩回到第一壳体1中，如图17所示，显示装置还包括连接于第一壳体1和第二壳体61之间的剪叉机构7。
如图18所示，剪叉机构7包括沿柔性显示面板31相对第一壳体1的伸缩方向(也就是第一方向X)排列的四个连接杆组71，也就是连接杆组71a、连接杆组71b、连接杆组71c、连接杆组71d，每个连接杆组71均包括中部铰接在一起的连接杆711a和连接杆711b。
在连接杆组71a中，连接杆711a靠近第一壳体1的一端设置有第一铰接轴72，连接杆711b靠近第一壳体1的一端设置有第二铰接轴73，第一壳体1上开设有沿第三方向Z相隔设置的第一滑槽17和第二滑槽18，第一滑槽17、第二滑槽18均沿第三方向Z延伸，第一铰接轴72伸入第一滑槽17中，且与第一滑槽17滑动配合，以使连接杆711a靠近第一壳体1的一端与第一壳体1可移动连接；第二铰接轴73伸入第二滑槽18中，且与第二滑槽18滑动配合，以使连接杆711b靠近第一壳体1的一端与第一壳体1可移动连接。
在连接杆组71a和连接杆组71b中，连接杆组71a中的连接杆711a的一端与连接杆组71b中的连接杆711b的一端铰接，连接杆组71a中的连接杆711b的一端与连接杆组71b中的连接杆711a的一端铰接。
在连接杆组71b和连接杆组71c中，连接杆组71b中的连接杆711a的一端与连接杆组71c中的连接杆711b的一端铰接，连接杆组71b中的连接杆711b的一端与连接杆组71b中的连接杆711a的一端铰接。
在连接杆组71c和连接杆组71d中，连接杆组71c中的连接杆711a的一端与连接杆组71d中的连接杆711b的一端铰接，连接杆组71c中的连接杆711b的一端与连接杆组71d中的连接杆711a的一端铰接。
在连接杆组71d中，连接杆711a靠近第二壳体61的一端设置有第三铰接轴74，连接杆711b靠近第一壳体1的一端设置有第四铰接轴75，第二壳体61上开设有沿第三方向Z相隔设置的第三滑槽612和第四滑槽613，第三滑槽612、第四滑槽613均沿第三方向Z延伸，第三铰接轴74伸入第三滑槽612中，且与第三滑槽612滑动配合，以使连接杆711a靠近第二壳体61的一端与第二壳体61可移动连接，第四铰接轴75伸入第四滑槽613中，且与第四滑槽613滑动配合，以使连接杆711b靠近第二壳体61的一端与第二壳体61可移动连接。
当然，在上述剪叉机构7中，连接杆组71的数目除了可以为四个之外，也可以为两个、三个等，具体根据柔性显示面板31、柔性支撑板32伸出的最大长度而定。在连接杆组71a中，也可以是连接杆711a或连接杆711b靠近第一壳体1的一端可沿第三方向Z相对第一壳体1移动；在连接杆组71d中，也可以是连接杆711a或连接杆711b靠近第二壳体61的一端可沿第三方向Z相对第二壳体61移动。
在剪叉机构7中，如图18所示，每个连接杆组71中的连接杆711a和连接杆711b交叉形成一定的角度θ，随着柔性显示面板31和柔性支撑板32伸出距离的变大，连接杆711a和连接杆711b交叉形成的角度θ会变小，当角度θ小到一定值时，剪叉机构7能够克服第一发条54、第二发条55的复位力形成自锁，从而使柔性显示面板31、柔性支撑板32保持在某一位置，这样用户即使松开手，柔性显示面板31、柔性支撑板32也不会在第一发条54、第二发条55的作用下缩回至第一壳体1中，从而大大方便了用户的使用；当需要将柔性显示面板31、柔性支撑板32缩回至第一壳体1中时，用户通过将第二壳体61向靠近第一壳体1的方向推，以增大使连接杆711a和连接杆711b交叉形成的角度θ来打破剪叉机构7的自锁，这样柔性显示面板31、柔性支撑板32就可以在第一发条54、第二发条55的作用下缩回至第一壳体1中。
其中，该剪叉机构7可以与柔性支撑板32相接触，但为了减小剪叉机构7与柔性支撑板32之间的摩擦，如图19和20所示，剪叉机构7也可以与柔性支撑板32相隔设置，图20中标号O所示为剪叉机构7与柔性支撑板32之间的间隙。
柔性支撑板32与柔性显示面板31之间实现的贴合方式不唯一，在一些实施例中，柔性支撑板32可以通过粘接与柔性显示面板31相贴合，如图2所示，柔性支撑板32包括柔性支撑板本体321以及粘接于柔性支撑板本体321的一侧表面的粘接膜322，粘接膜322被配置为：当柔性显示面板31和柔性支撑板32由开口10向第一壳体1外伸出时，粘接膜322能够逐渐与柔性显示面板31相粘接，以使柔性支撑板32与柔性显示面板31相贴合，并且粘接膜322与柔性显示面板31之间的剥离力小于粘接膜322与柔性支撑板本体321之间的剥离力。在该实施例中是通过粘接实现柔性支撑板32与柔性显示面板31之间贴合，结构简单，成本较低。另外，由于粘接膜322与柔性显示面板31之间的剥离力小于粘接膜322与柔性支撑板本体321之间的剥离力，这样设置是为了在粘接膜322与柔性显示面板31分离时，避免粘接膜322与柔性支撑板本体321分离。
其中，为了在柔性显示面板31、柔性支撑板32缩回第一壳体1内时便于粘接膜322与柔性显示面板31相分离，如图2所示，粘接膜322与柔性显示面板31之间的剥离力<3g/inch，也就是粘接膜322与柔性显示面板31粘接的一侧呈弱粘接性，这样较小的力就可以使粘接膜322与柔性显示面板31分离，从而使柔性显示面板31可以顺畅地向第一卷轴21上卷绕，使柔性支撑板32顺畅地向第二卷轴22上卷绕，进而使柔性显示面板31、柔性支撑板32顺利地缩回第一壳体1内。
为了更好地对柔性显示面板31进行保护，如图2所示，粘接膜322为弹性膜。由于粘接膜322为弹性膜，这样在柔性支撑板32与柔性显示面板31相粘接的情况下，如果柔性显示面板31受到按压时，粘接膜322就可以起到缓冲的作用，从而避免柔性显示面板31因受到按压而损坏。
粘接膜的类型不唯一，比如，如图2所示，粘接膜322可以为双面粘接膜。另外，如图4所示，粘接膜322也可以为单面粘接膜，该单面粘接膜的粘接面与柔性显示面板31相粘接，该单面粘接膜背离粘接面的一侧通过粘接层323与柔性支撑板本体321相粘接。
在柔性显示面板31展开时，为了使柔性支撑板32更好地对柔性显示面板31进行支撑，如图4所示，柔性支撑板本体321为钢片。相较于其他材料，钢片的硬度相对较高，可以对柔性显示面板31进行更好地支撑，从而保证柔性显示面板31的平整性。同时，钢片的韧性相对较好，可以方便卷绕于第二卷轴22上。
其中，钢片可以为不锈钢片。
在一些实施例中，柔性支撑板32也可以通过磁吸附的方式与柔性显示面板31相贴合，具体如下：柔性支撑板32的一侧表面设置第一磁吸层，柔性显示面板31的一侧表面设置第二磁吸层，柔性显示面板31和柔性支撑板32被配置为：当柔性显示面板31和柔性支撑板32由开口10向第一壳体1外伸出时，第一磁吸层和第二磁吸层相吸合，以使柔性支撑板32与柔性显示面板31相贴合。
在一些实施例中，如图4所示，柔性显示面板31包括面板本体311和柔性盖板312，面板本体311背离显示侧的一侧表面(图4所示面板本体311的下侧表面)被配置为与柔性支撑板32相贴合，柔性盖板312覆盖于面板本体311的显示侧的表面(图4所示面板本体311的上侧表面)上，且沿第三方向Z，柔性盖板312的边缘超出面板本体311的边缘设置。
在该实施例中，柔性盖板312的边缘超出面板本体311的边缘设置，也就是柔性盖板312的边缘时悬空的，这样柔性盖板312的边缘容易下垂，为了解决柔性盖板312的边缘的下垂，如图4所示，柔性显示面板31还包括弹性支撑层313，弹性支撑层313贴覆于柔性盖板312的边缘处，且被配置为当面板本体311与柔性支撑板32相贴合时，弹性支撑层313位于柔性盖板312的边缘与柔性支撑板32之间，以对柔性盖板312的边缘支撑。通过设置弹性支撑层313，这样在柔性显示面板31展开时，弹性支撑层313能够填补柔性盖板312的边缘与柔性支撑板32之间的间隙，以对柔性盖板312的边缘进行支撑，可以避免柔性盖板312的边缘下垂，保护柔性盖板312的边缘不受外力的损坏。
其中，弹性支撑层313可以为泡棉层(如图4所示)，也可以为橡胶层，在此不做具体限定。
在上述实施方式的描述中，具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (15)

  1. 一种显示装置，包括：
    第一壳体，所述第一壳体上开设有开口；
    第一卷轴，所述第一卷轴可转动设置于所述第一壳体中；
    第二卷轴，所述第二卷轴可转动设置于所述第一壳体中，所述第二卷轴与所述第一卷轴平行且相隔设置；
    柔性显示面板，所述柔性显示面板的第一端与所述第一卷轴相连接，且卷绕于所述第一卷轴上；
    柔性支撑板，所述柔性支撑板的第一端与所述第二卷轴相连接，且卷绕于所述第二卷轴上；
    所述柔性显示面板和所述柔性支撑板被配置为：当所述柔性显示面板和所述柔性支撑板由所述开口向所述第一壳体外伸出时，所述柔性支撑板能够逐渐与所述柔性显示面板相贴合，以对所述柔性显示面板支撑。
  2. 根据权利要求1所述的显示装置，其中，
    所述第一壳体包括第一壳体壁，所述开口设置于所述第一壳体壁上，所述第二卷轴设置于所述第一壳体壁与所述第一卷轴之间，或者，所述第一卷轴设置于所述第一壳体壁与所述第二卷轴之间；
    所述柔性支撑板由所述第二卷轴向所述第一壳体外的伸出方向与所述柔性显示面板由所述第一卷轴向所述第一壳体外的伸出方向相平行，并且所述柔性支撑板从所述第二卷轴上伸出的部分与所述柔性显示面板从所述第一卷轴伸出的部分相贴合。
  3. 根据权利要求2所述的显示装置，其中，
    所述显示装置还包括设置于所述第一壳体中的第一限位件和第二限位件，所述第一限位件和所述第二限位件之间形成第一间隙，所述柔性显示面板、所述柔性支撑板从所述第一间隙中穿过，且所述第一间隙的宽度小于或等于所述柔性显示面板、所述柔性支撑板的厚度之和。
  4. 根据权利要求3所述的显示装置，其中，
    所述第一限位件为第一限位辊，所述第二限位件为第二限位辊，所述第一限位辊和所述第二限位辊平行设置，且均可转动设置于所述第一壳体中。
  5. 根据权利要求2中任一项所述的显示装置，其中，
    所述显示装置还包括设置于所述第一壳体中的第三限位件，所述第三限位件与所述第二卷轴之间形成第二间隙，所述柔性显示面板、所述柔性支撑板从所述第二间隙中穿过，且所述第二间隙的宽度小于或等于所述柔性显示面板、所述柔性支撑板的厚度之和。
  6. 根据权利要求5所述的显示装置，其中，
    所述第三限位件为第三限位辊，所述第三限位辊可转动设置于所述第一壳体中，且与所述第二卷轴平行设置。
  7. 根据权利要求1～6中任一项所述的显示装置，其中，
    所述显示装置还包括第一发条和第二发条；
    所述第一发条呈螺旋状，且围绕所述第一卷轴设置，所述第一发条的一端与所述第一卷轴相连接，另一端与所述第一壳体相连接；所述第一发条被配置为：当所述第一卷轴沿第一转动方向转动时，所述第一发条可被上紧，以向所述第一卷轴施加可驱动所述第一卷轴沿第二转动方向转动的第一复位力；
    其中，所述第一转动方向为所述柔性显示面板由所述开口向所述第一壳体外伸出时所述第一卷轴的转动方向；所述第二转动方向为与所述第一转动方向相反的方向；
    所述第二发条呈螺旋状，且围绕所述第二卷轴设置，所述第二发条的一端与所述第二卷轴相连接，另一端与所述第一壳体相连接；所述第二发条被配置为：当所述第二卷轴沿第三转动方向转动时，所述第二发条可被上紧，以向所述第二卷轴施加可驱动所述第二卷轴沿第四转动方向转动的第二复位力；
    其中，所述第三转动方向为所述柔性支撑板由所述开口向所述第一壳体外伸出时所述第二卷轴的转动方向；所述第四转动方向为与所述第三转动方向相反的方向。
  8. 根据权利要求7所述的显示装置，其中，
    所述显示装置还包括第二壳体以及显示驱动器，所述显示驱动器设置于所述第二壳体中，且被配置为驱动所述柔性显示面板的显示；
    所述柔性显示面板的第二端、所述柔性支撑板的第二端均连接于所述第二壳体上；
    其中，所述柔性显示面板的第二端为所述显示面板伸出所述第一壳体外的一端，所述柔性支撑板的第二端为所述柔性支撑板伸出所述第一壳体外的一端。
  9. 根据权利要求8所述的显示装置，其中，
    所述第二壳体的一侧壳体壁的外表面上开设有安装槽，沿所述柔性显示面板相对所述第一壳体的伸缩方向，所述安装槽靠近所述第一壳体的一端形成有插入口，所述安装槽远离所述第一壳体的一端封闭；
    所述柔性显示面板的第二端、所述柔性支撑板的第二端由所述插入口伸入所述安装槽中，且在所述安装槽中，所述柔性支撑板的一侧表面与所述安装槽的槽壁相粘接，另一侧表面与所述柔性显示面板相贴合。
  10. 根据权利要求8或9所述的显示装置，其中，
    所述显示装置还包括连接于所述第一壳体和所述第二壳体之间的剪叉机构；
    所述剪叉机构包括沿所述柔性显示面板相对所述第一壳体的伸缩方向排列的多个连接杆组，每个所述连接杆组均包括两个中部铰接在一起的连接杆；
    在相邻的两个所述连接杆组中，一个所述连接杆组中两个所述连接杆的一端分别与另一个所述连接杆组中两个所述连接杆的一端一一对应铰接；
    在与所述第一壳体相邻的所述连接杆组中，两个所述连接杆靠近所述第一壳体的一端分别与所述第一壳体铰接，且至少有一个所述连接杆靠近所述第一壳体的一端被配置为可沿所述第一卷轴的长度方向相对所述第一壳体移动；
    在与所述第二壳体相邻的所述连接杆组中，两个所述连接杆靠近所述第二壳体的一端分别与所述第二壳体铰接，且至少有一个所述连接杆靠近所述第二壳体的一端被配置为可沿所述第一卷轴的长度方向相对所述第二壳体移动。
  11. 根据权利要求1～10中任一项所述的显示装置，其中，
    所述柔性支撑板包括柔性支撑板本体以及粘接于所述柔性支撑板本体的一侧表面的粘接膜；
    所述粘接膜被配置为：当所述柔性显示面板和所述柔性支撑板由所述开口向所述第一壳体外伸出时，所述粘接膜能够逐渐与所述柔性显示面板相粘接，以使所述柔性支撑板与所述柔性显示面板相贴合，并且所述粘接膜与所述柔性显示面板之间的剥离力小于所述粘接膜与所述柔性支撑板本体之间的剥离力。
  12. 根据权利要求11所述的显示装置，其中，
    所述粘接膜与所述柔性显示面板之间的剥离力<3g/inch。
  13. 根据权利要求11或12所述的显示装置，其中，
    所述粘接膜为弹性膜，和/或，所述柔性支撑板本体为钢片。
  14. 根据权利要求1～13中任一项所述的显示装置，其中，
    所述柔性显示面板包括面板本体和柔性盖板，所述面板本体背离显示侧的一侧表面被配置为与所述柔性支撑板相贴合，所述柔性盖板覆盖于所述面 板本体的显示侧的表面上，且沿所述第一卷轴的长度方向，所述柔性盖板的边缘超出所述面板本体的边缘设置；
    所述柔性显示面板还包括弹性支撑层，所述弹性支撑层贴覆于所述柔性盖板的所述边缘处，且被配置为当所述面板本体与所述柔性支撑板相贴合时，所述弹性支撑层位于所述柔性盖板的所述边缘与所述柔性支撑板之间，以对所述柔性盖板的所述边缘支撑。
  15. 根据权利要求14所述的显示装置，其中，所述弹性支撑层为泡棉层。
PCT/CN2021/093504 2020-06-22 2021-05-13 显示装置 WO2021258899A1 (zh)

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