WO2017063469A1 - 柔性显示面板的承载装置及显示设备 - Google Patents

柔性显示面板的承载装置及显示设备 Download PDF

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Publication number
WO2017063469A1
WO2017063469A1 PCT/CN2016/098576 CN2016098576W WO2017063469A1 WO 2017063469 A1 WO2017063469 A1 WO 2017063469A1 CN 2016098576 W CN2016098576 W CN 2016098576W WO 2017063469 A1 WO2017063469 A1 WO 2017063469A1
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WIPO (PCT)
Prior art keywords
plate
plate member
rotating shaft
display panel
flexible display
Prior art date
Application number
PCT/CN2016/098576
Other languages
English (en)
French (fr)
Inventor
孙力
Original Assignee
京东方科技集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/529,703 priority Critical patent/US10194540B2/en
Publication of WO2017063469A1 publication Critical patent/WO2017063469A1/zh

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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
    • H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units
    • 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
    • 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
    • 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
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates
    • H10K77/111—Flexible substrates
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/311—Flexible OLED
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells

Definitions

  • Embodiments of the present disclosure relate to a carrier device and a display device of a flexible display panel.
  • curved surface display products such as curved TV are suitable for human visual characteristics, which are beneficial to avoid visual fatigue, and have wide viewing angle, strong sense of presence, good 3D effect, and are more and more accepted and liked by consumers, and gradually become a development trend.
  • the display panel In the process of preparing the display device, first, the display panel can be pre-bent to a certain degree by a specific process, and then the curved display panel is fixed by the backlight module to form a curved display device.
  • the degree of bending of the curved display panel thus prepared is fixed, and thus the demand for diversified application scenarios cannot be satisfied.
  • An embodiment of the present disclosure provides a carrier device of a flexible display panel including a plate-shaped support member and a curvature adjusting member coupled to the plate-like support member, wherein the plate-shaped support member includes two outer surfaces opposite to each other An edge portion, at least a portion of the curvature adjusting member is disposed between the two outer edge portions, and the curvature adjusting member is capable of causing two outer edge portions of the plate-shaped support member toward the plate-shaped support member The side of the panel is curved to obtain a curved support surface of different curvature.
  • the plate-shaped support member includes a first plate-shaped member and a second plate-like member juxtaposed to each other, and the first plate-shaped member has a second plate adjacent to the second plate a first end of the member, the second plate member having a second end adjacent the first plate member, the curvature adjusting member comprising at least one rotating shaft, the first of the first plate member The second end of the end and the second plate member are coupled to the at least one rotating shaft, and the first plate member and the second plate member are pivotable about an axial direction of the at least one rotating shaft.
  • the at least one rotating shaft includes a first rotating shaft and a second rotating shaft that are parallel to each other and fixed in relative positions, and the first end of the first plate-shaped member Connected to the first rotating shaft and rotatable about an axial direction of the first rotating shaft, the second end of the second plate member is connected to the second rotating shaft and is rotatable about the axis of the second rotating shaft Rotate.
  • the at least one rotating shaft includes a third rotating shaft, and the first end of the first plate member is connected to the third rotating shaft and is rotatable around the third The shaft rotates in an axial direction, and the second end of the second plate member is coupled to the third shaft and rotatable about an axial direction of the third shaft.
  • the curvature adjusting member may further include a limiting member that fixes a relative position of the first plate member and the second plate member.
  • the reinforcing rib disposed on the first plate member and/or the second plate member is further included.
  • the shapes of the first plate member and the second plate member include a rectangular shape, a trapezoidal shape, and a parallel strip shape.
  • the plate-shaped support member further includes a third plate-shaped member on the same side of the first plate-shaped member and the second plate-shaped member.
  • the elastic modulus of the third plate member is smaller than the elastic modulus of the first plate member and the second plate member.
  • the plate-shaped support member includes a fourth plate-shaped member
  • the curvature adjusting member includes at least one first elastic member
  • the at least one first elastic member is detachable Connected to the main surface side of the fourth plate member, the at least one first elastic member being capable of biasing the fourth plate member such that the two outer edges of the fourth plate member It is bent toward the side of the plate surface of the fourth plate member.
  • the fourth plate member includes a first groove disposed on the main surface side, and the at least one first elastic member is detachably spanned The opposite sides of the first groove and/or are disposed within the first groove.
  • the plate-shaped support member further includes a fifth plate-shaped member detachably mounted to the main surface side of the fourth plate-shaped member, the The fifth plate member includes a second groove disposed to communicate with and overlap the first groove.
  • the curvature adjusting member includes at least one second elastic member, and the at least one second elastic member is detachably disposed across the second The opposite sides of the groove and/or are disposed within the second groove.
  • the first groove is not parallel to an edge of the fourth plate member.
  • the at least one elastic member includes a spring and/or an elastic body.
  • At least one embodiment of the present disclosure further provides a display device including a flexible display panel and a carrier device carrying the flexible display panel, wherein the carrier device is a carrier device according to any of the embodiments of the present disclosure, the flexibility
  • the display panel is located on the one side of the board surface of the plate-like support member.
  • the at least one rotating shaft is coupled to the flexible display panel.
  • the plate-shaped support member further includes a third plate between the first plate-shaped member and the second plate-shaped member and the flexible display panel a member, the at least one rotating shaft being coupled to the third plate member.
  • the elastic modulus of the third plate member is smaller than the elastic modulus of the first plate member and the second plate member.
  • the vertical projection of the first plate member and the second plate member on the flexible display panel does not exceed the third plate member.
  • FIG. 1 is a cross-sectional structural view of a carrier device of a flexible display panel in an X-Z plane direction according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic cross-sectional view of a carrier device of a flexible display panel in an X-Z plane direction according to an embodiment of the present disclosure.
  • FIG. 3 is a carrier device of a flexible display panel according to an embodiment of the present disclosure in an X-Z plane Schematic diagram of the cross-section structure.
  • FIG. 4 is a cross-sectional structural view of a carrier device of a flexible display panel in an X-Z plane direction according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic top plan view of a carrier device of a flexible display panel provided on an X-Y plane according to an embodiment of the present disclosure.
  • FIGS. 6A to 6C are schematic top plan views of first and second plate-like members of a carrying device of a flexible display panel according to an embodiment of the present disclosure.
  • FIG. 7 is a cross-sectional structural view of a carrier device of a flexible display panel in an X-Z plane direction according to an embodiment of the present disclosure.
  • FIG. 8 is a cross-sectional structural view of a carrier device of a flexible display panel in an X-Z plane direction according to an embodiment of the present disclosure.
  • 9A to 9D show an example of the arrangement of the first groove in one embodiment of the present disclosure.
  • FIG. 10 is a top plan view of a carrier device of a flexible display panel according to an embodiment of the present disclosure in an X-Y plane.
  • FIG. 11 is a top plan view of a carrier device of a flexible display panel according to an embodiment of the present disclosure in an X-Y plane.
  • FIG. 12 is a schematic top plan view of a carrier device of a flexible display panel provided on an X-Y plane according to an embodiment of the present disclosure.
  • FIG. 13 shows an example of an elastic member in one embodiment of the present disclosure.
  • FIG. 14 is a schematic cross-sectional view of a display device in an X-Z plane direction according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic cross-sectional view of a display device in an X-Z plane direction according to an embodiment of the present disclosure.
  • 16 is a schematic cross-sectional view of a flexible display panel and a curved support back panel before assembly in the X-Z plane direction provided by a technique.
  • 17 is a schematic cross-sectional view of the display device assembled from the flexible display panel and the curved support back panel of FIG. 16 in the X-Z plane direction.
  • FIG. 16 shows an unbent flexible display panel 90 and a carrier (bending support backing) 80 that has been adjusted in curvature.
  • FIG. 17 shows the structure after the flexible display panel 90 is mounted on the carrier device 80.
  • the display panel 90 is placed in the curved support backing plate 80, and by bending the external force of the backing plate 80, the resilient force of the panel 90 is counteracted to maintain the display panel 90 in a curved configuration.
  • the pre-curved support back plate 80 can not only carry the weight of the display panel 90, but also the resilience generated by the bending of the display panel 90 after the display panel 90 is assembled with the support back plate 80, which is offset by the pre-bent support back plate 80. Eventually the resulting display is brought to a stable bend radius. Generally, the curved support backing plate 80 is curved and has a small initial curvature. After the curved support back plate 80 is assembled with the display panel 90, the resilience of the display panel 90 is applied to the support back plate 80, which causes the curvature of the curved support back plate 80 to become large, so that the initial curvature of the curved support back plate 80 is smaller than The target curvature of the display.
  • the curvature of the curved supporting backing plate 80 is increased by the resilience of the display panel 90, thereby achieving the design curvature of the entire display device.
  • the resilience of the display panel, the curved shape of the curved support back plate, the radius of the pre-bending, the thickness, and the density and uniformity are relatively fixed, the display screens with different curvatures need to be different for the same panel.
  • the pre-bending rate supports the back plate, thus forming a plurality of models of curved support back plates, which is not conducive to manufacturing costs And product management.
  • One embodiment of the present disclosure provides a carrying device of a flexible display panel and a display device using the same, which can make the flexible display panel have different curvature radii by changing the degree of bending of the supporting back plate, thereby realizing variable curvature display screen.
  • the carrying device of the flexible display panel includes a plate-shaped support member and a curvature adjusting member coupled to the plate-like support member, wherein the plate-shaped support member includes two outer edge portions opposed to each other, the curvature adjusting member At least a portion (ie, partially or wholly) is disposed between the two outer edge portions, and the curvature adjusting member is capable of causing the two outer edge portions of the plate-shaped support member toward the plate of the plate-shaped support member The side of the face is curved to obtain a curved support surface of different curvature.
  • FIGS. 1 through 6C a carrier device of a flexible display panel provided by the first embodiment of the present disclosure will be described with reference to FIGS. 1 through 6C.
  • a carrier device 10 includes a plate-like support member 100 and a curvature adjusting member 200 coupled to the plate-like support member 100.
  • the plate-like support member 100 includes a first outer edge portion 112 and a second outer edge portion 122 that face each other. At least a portion of the curvature adjusting member 200 is disposed between the two outer edge portions 112 and 122.
  • the curvature adjusting member 200 is configured such that the two outer edge portions 112 and 122 of the plate-shaped support member 100 are bent toward the plate surface side of the plate-shaped support member, so that curved support faces of different curvatures can be obtained.
  • the plate-like support member 100 includes a first plate member 110 and a second plate member 120 juxtaposed to each other.
  • the first plate member 110 has a first end portion 111 close to the second plate member 120 and a first outer edge portion 112 away from the second plate member 120;
  • the second plate member 120 has a proximity to the first plate member 110 The second end portion 121 and the second outer edge portion 122 away from the first plate member 120.
  • the first outer edge portion 112 of the first plate member 110 and the second outer edge portion 122 of the second plate member 120 are two outer edge portions of the plate-shaped support member 100 that are opposed to each other.
  • the curvature adjusting member 200 includes at least one rotating shaft, the first end portion 111 of the first plate member 110 and the second end portion 121 of the second plate member 120 are coupled to the at least one rotating shaft, and the first plate member 110 and The second plate member 120 is configured to be pivotable about an axial direction of the at least one rotating shaft to obtain curved supporting faces of different curvatures.
  • the curvature adjusting member 200 includes a first rotating shaft 210 and a second rotating shaft 220 that are parallel to each other and fixed in relative position.
  • the first rotating shaft 210 and the second rotating shaft 220 can be fixed relative to each other by the sleeve 280.
  • the sleeve 280 can be sleeved at opposite ends of the first shaft 210 and the second shaft 220, for example, in the Y direction (ie, perpendicular to the plane of the paper), as shown in FIGS. 5 and 6A-6C.
  • the relative positions of the first rotating shaft 210 and the second rotating shaft 220 are fixed to mean that the axial positions (parallel and Y-direction) of the both are relatively fixed. Embodiments of the present disclosure do not limit the relative positional relationship of the first rotating shaft 210 and the second rotating shaft 220.
  • the first shaft 210 and the second shaft 220 may be disposed not parallel to each other, such as at an angle, to obtain a non-cylindrical curved support surface.
  • the first rotating shaft 210 and the second rotating shaft 220 are respectively rotatable relative to the respective axial directions.
  • the first rotating shaft 210 and the second rotating shaft 220 are disposed between the first outer edge portion 112 and the second outer edge portion 122 of the plate-shaped support member 100 that face each other.
  • the first end portion 111 of the first plate member 110 is coupled to the first rotating shaft 210 and rotatable about an axial direction of the first rotating shaft 210; the second end portion 121 of the second plate member 120 It is coupled to the second rotating shaft 220 and is rotatable about an axial direction of the second rotating shaft 220.
  • the first plate member 110 and the second plate member 120 may be fixedly coupled to the first rotating shaft 210 and the second rotating shaft 220, respectively.
  • the first rotating shaft 210 and the second rotating shaft 220 are driven to rotate by, for example, a stepping motor or manually driving a gear, a belt, a screw, or the like, thereby driving the first plate member 110 and the second plate member 120 respectively around the first rotating shaft 210 and the first
  • the two rotating shafts 220 are axially rotated, so that the first plate-shaped member 110 and the second plate-shaped member 120 can be opened and closed about the axial direction of the first rotating shaft 210 and the second rotating shaft 220.
  • first plate member 110 and the second plate member 120 may be symmetrically rotated with respect to the first rotating shaft 210 and the second rotating shaft 220, respectively, or may be asymmetrically rotated with respect to the first rotating shaft 210 and the second rotating shaft 220, respectively.
  • the first plate member 110 and the second plate member 120 may be synchronously rotated with respect to the first rotating shaft 210 and the second rotating shaft 220, respectively, or may be asynchronously rotated with respect to the first rotating shaft 210 and the second rotating shaft 220, respectively.
  • the upper surfaces of the first plate member 110 and the second plate member 120 are provided, for example, as curved support faces of the plate-like support member 100.
  • the two outer edge portions 112 and 122 of the plate-shaped support member 100 can be bent toward the upper or lower side of the plate-like support member 100 by the first rotating shaft 210 and the second rotating shaft 220 (ie, toward the first plate)
  • the upper and lower sides of the member 110 and the second plate member 120 are curved to obtain curved support faces of different curvatures.
  • a flexible display panel can be coupled to the curved support surface to achieve different curvatures under the support of different curved support surfaces.
  • Flexible display panel and curved support surface in the case where the flexible display panel is coupled to the curved support surface It can be in full contact, but it can also be in partial contact only.
  • the curvature adjusting member 200 includes a rotating shaft, that is, a third rotating shaft 230.
  • the first end portion 111 of the first plate member 110 is coupled to the third rotating shaft 230 and is rotatable about the axial direction of the third rotating shaft 230.
  • the first end portion 111 of the first plate member 110 is rotatably sleeved on the third rotating shaft 230.
  • the second end portion 121 of the second plate member 120 is coupled to the third rotating shaft 230 and is rotatable about an axial direction of the third rotating shaft 230.
  • the second end portion 121 of the second plate member 120 is rotatably sleeved on the third rotating shaft 230.
  • first plate member 110 that is sleeved on the third rotating shaft 230 and a portion of the second plate member 120 that is sleeved on the third rotating shaft 230 are staggered in the axial direction of the third rotating shaft, thereby
  • the first plate member 110 and the second plate member 120 are rotatable relative to the third rotating shaft 230 independently of each other.
  • the sleeve 280 can be sleeved at opposite ends of the third rotating shaft 230, for example, in the Y direction.
  • the plate-like support member 100 may further include a third plate-like member 130 on one side of the first plate-like member 110 and the second plate-like member 120.
  • the first plate member 110 and the second plate member 120 may apply a force to the third plate member by rotation to change the curvature of the third plate member.
  • the three plate members 110, 120 and 130 as a whole provide a stable curved support surface.
  • the upper surface of the third plate member 130 may be provided as a curved support surface.
  • the flexible display panel may be disposed on the upper surface of the third plate member 130 to obtain a corresponding curvature.
  • the sleeve 280 sleeved at opposite ends of the first shaft 210 and the second shaft 220 may be fixed to the third plate member 130 by screwing or bonding, or may be integrated with the third plate member 130. forming.
  • the elastic modulus of the third plate member 130 may be smaller than the elastic modulus of the first plate member 110 and the second plate member 120. That is, the third plate member 130 is more easily bent and deformed with respect to the first plate member 110 and the second plate member 120. In this way, the first plate member 110 and the second plate member 120 can apply a force to the third plate member 130 by rotation, and the curvature of the third plate member 130 can be changed relatively easily to provide for bonding to the third plate.
  • the display panel on the upper surface of the member 130 has better support and bending effects.
  • the forming material of the first plate member 110, the second plate member 120, and the third plate member 130 may include metal, carbon fiber, plexiglass, ceramic, or the like.
  • the curvature adjustment member 200 can further include, for example, a stop member 240 configured to secure the relative positions of the first plate member 110 and the second plate member 120.
  • the limiting member 240 may be a rigid fixing piece that can be inserted into a hole or a groove reserved in the lower surface of the first plate member 110 and the second plate member 120 to realize the first plate member 110 and the first The two plate members 120 are relatively fixed in position.
  • the limiting member 240 may be a limiting block disposed on the third rotating shaft 230 for limiting and locking the rotation angles of the first plate member 110 and the second plate member 120.
  • the example of the limiting member is not limited to the above manner, and any member that can achieve the relative position of fixing the first plate member 110 and the second plate member 120 can be used as the limiting member in the embodiment of the present disclosure.
  • the first plate member 110 and the second plate member 120 may be fixedly coupled to the first and second rotating shafts 210 and 220, respectively, and the first and second rotating shafts 210 and 210, respectively.
  • the stepping motor may also have the function of limiting the rotation of the first rotating shaft 210 and the second rotating shaft 220 to fix the relative positions of the first rotating shaft 210 and the second rotating shaft 220, so this step
  • the feed motor itself can also be used as a limit member.
  • the carrying device provided by the above embodiment of the present disclosure may further include a reinforcing rib 150 disposed on the first plate member 110 and/or the second plate member 120.
  • the support strength of the first plate member 110 and/or the second plate member 120 is enhanced in correspondence.
  • the rib 150 is disposed on the lower surfaces of the first plate member 110 and the second plate member 120, and each of the ribs 150 is disposed along the X direction shown in the drawing.
  • the reinforcing ribs 150 may be strip-shaped and disposed on the lower surfaces of the first plate-like member 110 and the second plate-like member 120 separately from each other.
  • the position, shape, and number of the ribs 150 are not limited to the above.
  • the rib 150 may be disposed on the upper surfaces of the first plate member 110 and the second plate member 120.
  • the number and shape of the reinforcing ribs may be adjusted according to parameters such as the elastic modulus, weight and hardness of the first plate member 110 and the second plate member 120 and the flexible display panel.
  • the reinforcing rib may also be an X-shaped sheet or a rectangular sheet.
  • the shape of the strip or the triangle is combined with a shape such as a rectangular sheet.
  • the ribs 150 may be separately fabricated and then joined, riveted or welded to the first plate member 110 and/or the second plate member 120 by screws, or to the first plate member 110 and/or the first
  • the two plate members 120 are integrally formed.
  • the first plate member 110, the second plate member 120, and the third plate member 130 may each have a curved shape.
  • the shape of the first plate member 110 and the second plate member 120 in the XY plane in the embodiment of the present disclosure is not limited to a rectangular shape.
  • 6A to 6C illustrate the XY plane of the first plate member 110 and the second plate member 120 in the embodiment of the present disclosure.
  • Some examples of shapes may be shown in FIG. 6A, the first plate member 110 and the second plate member 120 may respectively include a plurality of strip structures parallel to each other; as shown in FIG. 6B, the first plate member 110 and the second plate shape
  • the member 120 may have a trapezoidal shape; as shown in FIG. 6C, the first plate member 110 and the second plate member 120 may have a shape of a combination of a V shape and a rectangle.
  • the first plate member 110 and the second plate member 120 may have different planar shapes.
  • the first plate member and the second plate member are rotated in the Y direction, thereby providing a curved support surface for different curvatures of the flexible display panel, thereby
  • the flexible display panel bonded to the curved support surface may have different radii of curvature to achieve variable curvature display.
  • the outer edge portion of the carrier device does not need to overlap the outer side of the display panel to be supported, and does not need to be a straight side, and may have an irregular shape, for example.
  • the carrier device 20 provided by the first embodiment of the present disclosure includes a plate-like support member 100' and a curvature adjusting member 200' coupled to the plate-like support member 100'.
  • the plate-like support member 100' includes a first outer edge portion 143 and a second outer edge portion 144 that are opposed to each other.
  • the curvature adjusting member 200' is disposed between the two outer edge portions 143 and 144.
  • the curvature adjusting member 200' is configured such that the two outer edge portions 143 and 144 of the plate-like supporting member 100' are bent toward the plate surface side of the plate-like supporting member, thereby obtaining curved supporting faces of different curvatures.
  • the plate-shaped support member 100' includes a fourth plate-like member 140
  • the curvature-adjusting member 200' includes at least one first elastic member 260, the at least one first elastic member The 260 is detachably coupled to the main surface side 142 of the fourth plate member 140.
  • the at least one first elastic member 260 is configured to be capable of biasing the fourth plate member 140 such that the third outer edge portion 143 and the fourth outer edge portion 144 of the fourth plate member 140 are toward the fourth
  • the upper or lower side of the plate member 140 is curved to form a curved support surface.
  • the upper surface of the fourth plate member 140 may be provided as the curved support surface.
  • the flexible display panel can be disposed on the upper surface of the fourth plate member 140.
  • Adjustment of the curvature of the fourth plate member 140 can be achieved by adjusting the force applied to the fourth plate member 140 by the first elastic member 260.
  • the first elastic member 260 mounted on the main surface side 142 of the fourth plate member 140 may be in a compressed state or a stretched state.
  • the fourth plate member 140 may be a curved member having a uniform thickness, or may be a plate member whose thickness gradually decreases from the middle to the both ends.
  • the fourth plate member 140 further includes a first groove 141 disposed on the major surface side 142.
  • the at least one first elastic member 260 is configured to be detachably disposed outside the opposite sides of the first groove 141, but the present disclosure is not limited to this case.
  • the first elastic members 260 may also be disposed inside opposite sides of the first groove 141.
  • the first elastic member 260 is disposed in the first recess 141 to make the main surface side 142 relatively flat, which is advantageous for achieving a uniform appearance of the product and reducing the thickness of the product.
  • the portion of the fourth plate member 140 on the opposite sides of the first groove 141 can be made relatively easy with respect to the first concave
  • the groove 141 is bent, and the curvature adjustment range of the fourth plate member 140 can be increased.
  • the plate-like support member 100' may further include a fifth plate-like member 150 detachably mounted to the main surface side 142 of the fourth plate-like member 140,
  • the fifth plate member 150 is provided with a second groove 151 that communicates with and overlaps with the first groove 141.
  • the first groove 141 and the second groove 151 may not communicate with each other or overlap each other.
  • the length of the fifth plate member 150 in the X and Y directions may be greater than the length of the fourth plate member 140 in the respective directions, respectively.
  • the length of the second groove 151 in the X and Y directions may be greater or smaller than the length of the first groove 141 in the corresponding direction, respectively, and the first groove 141 and the second groove 151 may completely overlap or may be at least There is a partial overlap.
  • the first groove 141 and the second groove 151 have, for example, a V-shaped cross section.
  • the curvature adjusting member 200' may further include at least one second elastic member 261 configured to be detachably spanned across the second groove 151
  • the opposite sides and/or are disposed in the second groove 151.
  • a first elastic member 260 and a second elastic member 261 are respectively disposed in the first groove 141 and the second groove 151, and the first elastic member 260 and the second elastic member 261 respectively correspond to the first groove 141 and the first
  • the two grooves 151 apply a pushing force or a pulling force to change the curvatures of the fourth plate member 140 and the fifth plate member 150, respectively.
  • the fourth plate member 140 and the fifth plate member 150 are joined together, for example by an additional locking device, to create a stable curved support surface by interaction.
  • the second elastic member 261 in the second groove 151 of the fifth plate member 150 may be omitted.
  • the second groove 151 of the fifth plate member 150 may also be omitted.
  • the first groove 141 and the second groove 151 may be respectively parallel to the edge of the fourth plate member 140, that is, parallel to the Y direction (as shown in FIG. 9A).
  • 9B, 9D) may not be parallel to the edge of the fourth plate member 140, that is, not parallel to the Y direction, but have an acute or obtuse angle with the Y direction (as shown in FIG. 9C).
  • the fourth plate member 140 and the fifth plate member 150 may have a plurality of first grooves 141 and second grooves 151, respectively, and the number of grooves may increase the fourth plate shape.
  • the curvature of the member 140 and the fifth plate member 150 is more likely to change, making the shape of the formed curved support surface more variable.
  • the first groove 141 and the second groove 151 may penetrate the fourth plate member 140 and the fifth plate member 150 in the Y direction, respectively, or may not penetrate the fourth portion.
  • the plate member 140 and the fifth plate member 150 are provided only in a portion between the fourth plate member 140 and the fifth plate member 150.
  • a part of the grooves may penetrate the fourth plate member 140 and/or the fifth plate member 150 in the Y direction, and the other portion may be in the Y direction.
  • the fourth plate member 140 and/or the fifth plate member 150 are not penetrated.
  • the at least one first and second resilient members comprise a spring and/or an elastomer.
  • the at least one first and second elastic members are both springs.
  • the lower surface of the fourth plate member 140 is provided with a bearing block 160, and the bearing block 160 is fixedly coupled to the fourth plate member 140.
  • the bearing block 160 is provided with a spring fixing hole 270, and the spring as the first and/or second elastic member may be connected to the bearing block 160 through the spring fixing hole 270, thereby being connected to the fourth plate member 140.
  • the bearing block 160 may be made of a material that is not easily deformed or rigid, such as metal, glass, ceramic, or polymer.
  • the bearing block 160 may conform to the material of the fourth plate member 140.
  • one or both ends of the spring may be provided with a buckle connected to the bearing block 160 to be detachably connected to the bearing block 160 and the fourth plate member 140.
  • the detachable connection is not limited to the buckle, and other similar ways of achieving a detachable connection can be applied thereto.
  • the detachable connection method can easily replace springs with different elastic coefficients and/or different lengths, thereby adjusting the different curvatures by adjusting the magnitude of the pulling force or thrust applied by the spring to the bearing block 160 and the fourth plate member 140. Only the manner in which the spring is disposed on the fourth plate member 140 is described above, and the spring or other elastic member may be disposed on the fifth plate member 150 in a similar manner, and details are not described herein.
  • the bearing block 160 in the above embodiment is not essential.
  • the bearing blocks are disposed on opposite side walls of the first recess 141. 160 may be omitted, and both ends of the first elastic member 260 (for example, a spring) are directly detachably connected to, for example, two opposite side walls of the first groove; further, the relative relationship of the second groove 151 is set
  • the bearing block 160 on the two side walls and the second elastic member 261 mounted on the bearing block 160 may also be omitted.
  • a plurality of springs as the first elastic members 260 may be disposed on one of the first grooves of the fourth plate member 140.
  • the number of springs can be adjusted.
  • the increase or decrease of the number of springs can also adjust the magnitude of the tension or thrust applied by the spring to the bearing block 160 and the fourth plate member 140 to achieve different curvature adjustments.
  • the fifth plate member 150 may also have a plurality of springs or other resilient members on one of its second grooves.
  • the shape of the spring 260 is not limited to a strip spring, and may be a semicircular spring.
  • Figure 13 shows examples of some of the available springs, including, for example, triangular springs, trapezoidal springs, or various anisotropic springs. It should be understood that the embodiments of the present disclosure are not limited to the shape of the spring to be used, as long as the elastic member capable of generating thrust or tension to the fourth plate member 140 can be used.
  • the elastic body may have a shape matching the first and/or second grooves to be detachably filled in the first and / or inside the second groove.
  • the curvature of the plate-like support member can be effectively adjusted by changing the number of elastic bodies as the first and/or second elastic members filled in the first and/or second grooves and the elastic material.
  • the material of the elastomer may be an elastic resin, a rubber or the like.
  • the upper surface of the plate-shaped support back plate is provided as a curved support having different curvatures by providing springs of different tensile strengths or numbers on the back surface of the plate-shaped support member. surface.
  • the radius of curvature of the flexible display panel bonded to the upper surface of the plate-like support backing plate can be adjusted.
  • the outer edge portion of the carrier device does not need to overlap the outer side of the display panel to be supported, and does not need to be a straight side, and may have an irregular shape, for example.
  • a third embodiment of the present disclosure provides a display device 1 including a flexible display panel D and a carrier device configured to carry the flexible display panel D, wherein the carrier device is provided by any of the above embodiments of the present disclosure
  • the carrying device, the flexible display panel D is located on one side of the curved support surface of the plate-like support member.
  • the carrier device employed in the display device 1 provided by the third embodiment of the present disclosure is the carrier device provided in the embodiment shown in FIG. 1.
  • the rotating shafts 210, 220 can be connected, for example, to the flexible display panel D.
  • the sleeve 280 can be fixedly coupled to the lower surface of the flexible display panel D.
  • the first rotating shaft 210 and the second rotating shaft 220 are disposed on the lower surface of the flexible display panel 20 via the boss 280.
  • the sleeve 280 may be separately processed and disposed on the flexible display panel D by, for example, snapping, or may be integrally formed with the flexible display panel D.
  • the third plate shape 130 is further disposed between the first plate member 110 and the second plate member 120 and the flexible display panel D.
  • the rotating shafts 210, 220 are connected, for example, to the lower surface of the third plate member 130.
  • the elastic modulus of the third plate member 130 is smaller than the elastic modulus of the first plate member 110 and the second plate member 120.
  • the vertical projection of the first plate member 110 and the second plate member 120 on the flexible display panel D does not exceed the vertical of the third plate member 130 on the flexible display panel D. projection. That is, the vertical projection of the first plate member 110 and the second plate member 120 in the XY plane does not exceed the vertical projection of the third plate member 130 in the XY plane.
  • the flexible display panel employed in the display device 1 provided by the third embodiment of the present disclosure may be an OLED display panel including, for example, a package substrate and an array substrate, and an organic light-emitting structure therebetween.
  • the flexible display panel can also be other types of flexible display panels such as electronic ink flexible displays.
  • the curvature of the display screen can be adjusted, so that the optimal viewing distance can be adjusted to meet the diversified needs of the application scenario.

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Abstract

一种柔性显示面板的承载装置(10；20)和显示设备(1)。该承载装置(10；20)包括板状支撑构件(100；100')以及结合到所述板状支撑构件(100；100')上的曲率调节构件(200；200')，其中，所述板状支撑构件(100；100')包括彼此相对的两个外缘部(112,122；143,144)，所述曲率调节构件(200；200')的至少一部分设置在所述两个外缘部(112,122；143,144)之间，且所述曲率调节构件(200；200')构造为能够使得所述板状支撑构件(100；100')的两个外缘部(112,122；143,144)向所述板状支撑构件(100；100')的板面一侧弯曲，从而得到不同曲率的弯曲支撑面。这样的承载装置(10；20)能够调节显示屏幕的曲率，使得最佳观赏距离可调节，满足应用场景多元化的需求。

Description

柔性显示面板的承载装置及显示设备 技术领域
本公开实施例涉及一种柔性显示面板的承载装置及显示设备。
背景技术
随着显示技术的不断发展，人们对显示产品的视觉需求也越来越高。曲面电视等曲面显示产品与人体视觉特征相适应，有益于避免视觉疲劳，且视角广，临场感强，3D效果好，越来越被消费者接受和喜欢，逐渐成为发展的趋势。
在制备显示装置的过程中，首先，可以通过特定工艺将显示面板预先弯曲成一定弧度，然后利用背光模组将弯曲的显示面板进行固定，从而形成曲面显示装置。然而，如此制备的曲面显示面板的弯曲程度是固定的，因此无法满足应用场景多元化的需求。
发明内容
本公开的实施例提供一种柔性显示面板的承载装置，包括板状支撑构件以及结合到所述板状支撑构件上的曲率调节构件，其中，所述板状支撑构件包括彼此相对的两个外缘部，所述曲率调节构件的至少一部分设置在所述两个外缘部之间，且所述曲率调节构件能够使得所述板状支撑构件的两个外缘部向所述板状支撑构件的板面一侧弯曲，从而得到不同曲率的弯曲支撑面。
例如，在本公开一实施例提供的承载装置中，所述板状支撑构件包括彼此并列的第一板状构件和第二板状构件，所述第一板状构件具有靠近所述第二板状构件的第一端部，所述第二板状构件具有靠近所述第一板状构件的第二端部，所述曲率调节构件包括至少一个转轴，所述第一板状构件的第一端部和第二板状构件的第二端部连接到所述至少一个转轴，且所述第一板状构件和所述第二板状构件能够绕所述至少一个转轴所在轴向枢转。
例如，在本公开一实施例提供的承载装置中，所述至少一个转轴包括彼此平行且相对位置固定的第一转轴和第二转轴，所述第一板状构件的第一端 部连接到所述第一转轴并能够绕所述第一转轴所在轴向旋转，所述第二板状构件的第二端部连接到所述第二转轴并能够绕所述第二转轴所在轴向旋转。
例如，在本公开一实施例提供的承载装置中，所述至少一个转轴包括第三转轴，所述第一板状构件的第一端部连接到所述第三转轴并能够绕所述第三转轴所在轴向旋转，和所述第二板状构件的第二端部连接到所述第三转轴并能够绕所述第三转轴所在轴向旋转。
例如，在本公开一实施例提供的承载装置中，所述曲率调节构件还可以包括限位构件，该限位构件固定所述第一板状构件和第二板状构件的相对位置。
例如，在本公开一实施例提供的承载装置中，还包括设置在所述第一板状构件和/或所述第二板状构件上的加强筋。
例如，在本公开一实施例提供的承载装置中，其中所述第一板状构件和所述第二板状构件的形状包括矩形、梯形、平行条状。
例如，在本公开一实施例提供的承载装置中，所述板状支撑构件还包括位于所述第一板状构件和所述第二板状构件的同一侧的第三板状构件。
例如，在本公开一实施例提供的承载装置中，所述第三板状构件的弹性模量小于所述第一板状构件和所述第二板状构件的弹性模量。
例如，在本公开一实施例提供的承载装置中，所述板状支撑构件包括第四板状构件，所述曲率调节构件包括至少一个第一弹性构件，所述至少一个第一弹性构件可拆卸地连接到所述第四板状构件的主表面侧上，所述至少一个第一弹性构件能够对所述第四板状构件施力以使得所述第四板状构件的两个外缘部向所述第四板状构件的板面一侧弯曲。
例如，在本公开一实施例提供的承载装置中，所述第四板状构件包括设置在所述主表面侧上的第一凹槽，所述至少一个第一弹性构件可拆卸地跨设在所述第一凹槽的相对两侧和/或设置在所述第一凹槽内。
例如，在本公开一实施例提供的承载装置中，所述板状支撑构件还包括可拆卸地安装到所述第四板状构件的所述主表面侧的第五板状构件，所述第五板状构件上包括设置得与所述第一凹槽连通且重叠的第二凹槽。
例如，在本公开一实施例提供的承载装置中，所述曲率调节构件包括至少一个第二弹性构件，所述至少一个第二弹性构件可拆卸地跨设在所述第二 凹槽的相对两侧和/或设置在所述第二凹槽内。
例如，在本公开一实施例提供的承载装置中，所述第一凹槽不平行于所述第四板状构件的边缘。
例如，在本公开一实施例提供的承载装置中，所述至少一个弹性构件包括弹簧和/或弹性体。
本公开至少一个实施例还提供一种显示设备，包括柔性显示面板以及承载所述柔性显示面板的承载装置，其中，所述承载装置为本公开任一实施例所述的承载装置，所述柔性显示面板位于所述板状支撑构件的板面的所述一侧。
例如，在本公开一实施例提供的显示设备中，所述至少一个转轴连接到所述柔性显示面板。
例如，在本公开一实施例提供的显示设备中，所述板状支撑构件还包括位于所述第一板状构件和所述第二板状构件与所述柔性显示面板之间的第三板状构件，所述至少一个转轴连接到所述第三板状构件。
例如，在本公开一实施例提供的显示设备中，所述第三板状构件的弹性模量小于所述第一板状构件和所述第二板状构件的弹性模量。
例如，在本公开一实施例提供的显示设备中，所述第一板状构件和所述第二板状构件在所述柔性显示面板上的垂直投影不超过所述第三板状构件在所述柔性显示面板上的垂直投影。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例或相关技术描述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涉及本公开的一些实施例，并非对本公开的限制。
图1是本公开一个实施例提供的柔性显示面板的承载装置在X-Z平面方向的截面结构示意图。
图2是本公开一个实施例提供的柔性显示面板的承载装置在X-Z平面方向的截面结构示意图。
图3是本公开一个实施例提供的柔性显示面板的承载装置在X-Z平面方 向的截面结构示意图。
图4是本公开一个实施例提供的柔性显示面板的承载装置在X-Z平面方向的截面结构示意图。
图5是本公开一个实施例提供的柔性显示面板的承载装置在X-Y平面上的俯视结构示意图。
图6A至6C是本公开一个实施例提供的柔性显示面板的承载装置的第一和第二板状构件的俯视结构示意图。
图7是本公开一个实施例提供的柔性显示面板的承载装置在X-Z平面方向的截面结构示意图。
图8是本公开一个实施例提供的柔性显示面板的承载装置在X-Z平面方向的截面结构示意图。
图9A至9D示出了本公开一个实施例中第一凹槽的设置方式示例。
图10是本公开一个实施例提供的柔性显示面板的承载装置在X-Y平面上的俯视结构示意图。
图11是本公开一个实施例提供的柔性显示面板的承载装置在X-Y平面上的俯视结构示意图。
图12是本公开一个实施例提供的柔性显示面板的承载装置在X-Y平面上的俯视结构示意图。
图13示出了本公开一个实施例中弹性构件的示例。
图14是本公开一个实施例提供的显示设备在X-Z平面方向的截面结构示意图。
图15是本公开一个实施例提供的显示设备在X-Z平面方向的截面结构示意图。
图16是一种技术提供的组装之前的柔性显示面板与弯曲支撑背板在X-Z平面方向的截面结构示意图。
图17是图16中的柔性显示面板和弯曲支撑背板组装得到的显示设备在X-Z平面方向的截面结构示意图。
具体实施方式
下面将结合附图，对本公开实施例中的技术方案进行清楚、完整地描述 参考在附图中示出并在以下描述中详述的非限制性示例实施例，更加全面地说明本公开的示例实施例和它们的多种特征及有利细节。应注意的是，图中示出的特征不是必须按照比例绘制。省略已知材料、组件和工艺技术的描述，从而不使本公开的示例实施例模糊。示例仅旨在有利于理解本公开示例实施例的实施，以及进一步使本领域技术人员能够实施示例实施例。因而，示例不应被理解为对本公开示例实施例的范围的限制。
除非另作定义，本申请使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
在曲面显示装置的制造过程中，例如在大尺寸曲面显示装置的制造过程中，一种的方法可以在柔性显示平板面板的两端直接施加外力以使得显示面板弯曲。图16所示的是未经弯曲的柔性显示面板90和已经调节好曲率的承载装置(弯曲支撑背板)80。图17所示的是柔性显示面板90安装到承载装置80上之后的结构。例如，参见图16和17，将显示面板90置于弯曲支撑背板80中，通过弯曲支撑背板80的外力，抵消面板90回弹力，来使得显示面板90保持在弯曲形态。预先弯曲的支撑背板80不仅可以承载显示面板90的重量，而且在显示面板90在与支撑背板80组装后，显示面板90弯曲产生的回弹力，由预弯曲的支撑背板80来抵消，最终使得组装后得到的显示器达到一个稳定的弯曲半径。通常地，弯曲支撑背板80是弧形的并且具有较小的初始曲率。弯曲支撑背板80在与显示面板90组装后，显示面板90的回弹力施加在支撑背板80上，会使得弯曲支撑背板80的曲率变大，因此弯曲支撑背板80的初始曲率要小于显示器的目标曲率。这样，在显示面板90组装到弯曲支撑背板80上之后，在显示面板90的回弹力作用下，弯曲支撑背板80的曲率增大，进而达到整个显示设备的设计曲率。但是，由于显示面板的回弹力、弯曲支撑背板的弧形形状、预弯曲的半径、厚度、以及密度和均匀性都对相对固定，因此对于同一面板，要实现不同曲率的显示屏就需要不同预弯曲率的支撑背板，从而形成众多的型号的弯曲支撑背板，不利于制造成本 和产品管理。
本公开的一个实施例提供了一种柔性显示面板的承载装置和采用该承载装置的显示设备，通过改变支撑背板的弯曲程度，可以使得柔性显示面板处于不同的曲率半径，从而实现可变曲率显示设备。该柔性显示面板的承载装置包括板状支撑构件以及结合到所述板状支撑构件上的曲率调节构件，其中，所述板状支撑构件包括彼此相对的两个外缘部，所述曲率调节构件的至少一部分(即部分或全部)设置在所述两个外缘部之间，且所述曲率调节构件能够使得所述板状支撑构件的两个外缘部向所述板状支撑构件的板面一侧弯曲，从而得到不同曲率的弯曲支撑面。
第一实施例
以下，将参照图1至图6C描述本公开第一实施例提供的柔性显示面板的承载装置。
如图1所示，本公开第一实施例提供的承载装置10，包括板状支撑构件100以及结合到所述板状支撑构件100上的曲率调节构件200。板状支撑构件100包括彼此相对的第一外缘部112和第二外缘部122。曲率调节构件200的至少一部分设置在所述两个外缘部112和122之间。曲率调节构件200构造为能够使得板状支撑构件100的两个外缘部112和122向所述板状支撑构件的板面一侧弯曲，从而可以得到不同曲率的弯曲支撑面。
如图所示，板状支撑构件100包括彼此并列的第一板状构件110和第二板状构件120。第一板状构件110具有靠近第二板状构件120的第一端部111和远离第二板状构件120的第一外缘部112；第二板状构件120具有靠近第一板状构件110的第二端部121和远离第一板状构件120的第二外缘部122。这里，第一板状构件110的第一外缘部112和第二板状构件120的第二外缘部122即为板状支撑构件100的两个彼此相对的外缘部。曲率调节构件200包括至少一个转轴，第一板状构件110的第一端部111和第二板状构件120的第二端部121连接到所述至少一个转轴，且第一板状构件110和第二板状构件120构造为能够绕所述至少一个转轴所在轴向枢转，从而得到不同曲率的弯曲支撑面。
例如，如图1所示，在本公开一实施例提供的承载装置10中，曲率调节构件200包括彼此平行且相对位置固定的第一转轴210和第二转轴220。例 如，第一转轴210和第二转轴220可通过轴套280实现相对位置的固定。轴套280例如可在Y方向(即垂直于纸面的方向)上套设在第一转轴210和第二转轴220的相反两端，参见图5及图6A-6C所示。这里，第一转轴210和第二转轴220的相对位置固定是指两者的轴向(平行与Y方向)位置相对固定。本公开的实施例并不限制第一转轴210和第二转轴220的相对位置关系。在一个示例中，第一转轴210和第二转轴220可设置为彼此不平行，例如成一个角度，从而得到非柱面的弯曲支撑面。在第一转轴210和第二转轴220的相对位置固定的情况下，第一转轴210和第二转轴220可分别相对于各自的轴向旋转。第一转轴210和第二转轴220设置在板状支撑构件100的彼此相对的第一外缘部112和第二外缘部122之间。
所述第一板状构件110的第一端部111连接到所述第一转轴210并能够绕所述第一转轴210所在轴向旋转；所述第二板状构件120的第二端部121连接到所述第二转轴220并能够绕所述第二转轴220所在轴向旋转。例如，第一板状构件110和第二板状构件120可被分别固定连接到第一转轴210和第二转轴220上。通过例如步进电机或手动带动齿轮、皮带、螺杆等来驱动第一转轴210和第二转轴220旋转，进而带动第一板状构件110和第二板状构件120分别绕第一转轴210和第二转轴220所在轴向旋转，使得第一板状构件110和第二板状构件120可绕第一转轴210和第二转轴220所在轴向做开合运动。例如，第一板状构件110和第二板状构件120的可以分别相对于第一转轴210和第二转轴220对称转动，也可以分别相对于第一转轴210和第二转轴220非对称转动。第一板状构件110和第二板状构件120的可以分别相对于第一转轴210和第二转轴220同步转动，也可以分别相对于第一转轴210和第二转轴220非同步转动。
在图1所示实施例中，第一板状构件110和第二板状构件120的上表面例如提供为板状支撑构件100的弯曲支撑面。板状支撑构件100的两个外缘部112和122在第一转轴210和第二转轴220的带动下能够朝向板状支撑构件100的板面上侧或下侧弯曲(即，朝向第一板状构件110和第二板状构件120的上侧或下侧弯曲)，从而得到不同曲率的弯曲支撑面。柔性显示面板可结合到该弯曲支撑面上，以在不同的弯曲支撑面的支撑下获得不同的曲率。在柔性显示面板结合到弯曲支撑面上的情况下，柔性显示面板与弯曲支撑面 可以全面接触，但也可以仅在局部接触。
可替换地，在一个示例中，如图2所示，曲率调节构件200包括一个转轴，即第三转轴230。第一板状构件110的第一端部111连接到第三转轴230并能够绕所述第三转轴230所在轴向旋转。例如，第一板状构件110的第一端部111可转动地套设在第三转轴230上。第二板状构件120的第二端部121连接到所述第三转轴230并能够绕所述第三转轴230所在轴向旋转。例如，第二板状构件120的第二端部121可转动地套设在第三转轴230上。例如，第一板状构件110套设在第三转轴230上的部分与第二板状构件120套设在第三转轴230上的部分在第三转轴的轴向方向上交错排布，从而使得第一板状构件110和第二板状构件120可彼此独立的相对于第三转轴230旋转。轴套280例如可在Y方向上套设在第三转轴230的相反两端。
在一个示例中，如图3所示，板状支撑构件100还可包括位于第一板状构件110和第二板状构件120一侧的第三板状构件130。第一板状构件110和第二板状构件120可通过旋转对第三板状构件施加作用力，以改变第三板状构件的曲率。由此，三个板状构件110、120和130作为一个整体提供稳定的弯曲支撑面。在本示例中，如图3所示，第三板状构件130的上表面可提供为弯曲支撑面。该情形中，柔性显示面板可设置在第三板状构件130的上表面上，从而获得对应的曲率。
在一个示例中，套设在第一转轴210和第二转轴220的相对两端的轴套280可以通过螺钉连接或粘接固定在第三板状构件130上，或者与第三板状构件130一体成型。
例如，第三板状构件130的弹性模量可以小于第一板状构件110和第二板状构件120的弹性模量。也就是，第三板状构件130相对于第一板状构件110和第二板状构件120较容易弯曲形变。这样，第一板状构件110和第二板状构件120可通过旋转对第三板状构件130施加作用力，较容易地改变第三板状构件130的曲率，以提供对于结合到第三板状构件130上表面的显示面板更好的支撑和弯曲效果。例如，第一板状构件110、第二板状构件120和第三板状构件130的形成材料可以包括金属、碳纤维、有机玻璃、陶瓷等。
继续参见图3，曲率调节构件200例如还可以包括限位构件240，该限位构件240构造为固定所述第一板状构件110和第二板状构件120的相对位置。 例如，限位构件240可以为刚性固定片，该刚性固定片可插入第一板状构件110和第二板状构件120下表面预留的孔或槽中，实现第一板状构件110和第二板状构件120相对位置固定。又例如，限位构件240可以为设置在第三转轴230上的限位块，用于限制和锁定第一板状构件110和第二板状构件120的转动角度。可以理解的是，限位构件的示例不局限于上述方式，任何可以实现固定第一板状构件110和第二板状构件120相对位置的构件均可用作本公开实施例中的限位构件。例如，在图1所示的实施例中，在第一板状构件110和第二板状构件120可被分别固定连接到第一转轴210和第二转轴220上且第一转轴210和第二转轴220采用步进电机驱动旋转的情况下，步进电机也可以具有限位第一转轴210和第二转轴220转动以固定第一转轴210和第二转轴220的相对位置的作用，因此该步进电机本身还可作为一种限位构件。
例如，如图4、图5所示，本公开上述实施例提供的承载装置还可包括设置在所述第一板状构件110和/或所述第二板状构件120上的加强筋150，以对应增强第一板状构件110和/或所述第二板状构件120的支撑强度。例如，加强筋150设置在第一板状构件110和第二板状构件120的下表面上，每根加强筋150沿图中所示X方向设置。例如，如图5所示，加强筋150可以为条状，彼此分离地设置在第一板状构件110和第二板状构件120的下表面上。加强筋150的位置、形状和数量不局限于上述情况。例如加强筋150也可设置于第一板状构件110和第二板状构件120的上表面。可根据第一板状构件110和第二板状构件120及柔性显示面板的弹性模量、重量和硬度等参数调整加强筋的数量和形状，例如加强筋还可以为X形片状、矩形片状或三角形条状结合矩形片状等形状。加强筋150可以是单独制作然后通过螺钉连接、铆接或焊接到第一板状构件110和/或所述第二板状构件120上，或者是与第一板状构件110和/或所述第二板状构件120一体加工成型。
在上述实施例中，第一板状构件110、第二板状构件120和第三板状构件130可分别具有弧面形状。
为满足不同应用场景的需要，本公开实施例中第一板状构件110和所述第二板状构件120在XY平面上的形状不限于矩形形状。图6A至6C示出了本公开实施例中第一板状构件110和所述第二板状构件120的在XY平面上 的一些形状示例。例如，如图6A所示，第一板状构件110和第二板状构件120可以分别包括多个彼此平行的条状结构；如图6B所示，第一板状构件110和第二板状构件120可具有梯形形状；如图6C所示，第一板状构件110和第二板状构件120可具有V形和矩形组合的形状。在一个示例中，第一板状构件110和第二板状构件120可具有不同的平面形状。
本公开的第一实施例提供的柔性显示面板的承载装置中，通过第一板状构件和第二板状构件绕Y方向转动，从而提供对于柔性显示面板的不同曲率的弯曲支撑面，从而使得结合到该弯曲支撑面上的柔性显示面板可具有不同的曲率半径，从而实现可变曲率显示。在本实施例中，承载装置的外缘部无需与将被支撑的显示面板的外侧边重叠，也无需为直边，例如可以为呈非规则形状。
第二实施例
以下，将参照图7至图13描述本公开第二实施例提供的柔性显示面板的承载装置。
例如，如图7所示，本公开第一实施例提供的承载装置20，包括板状支撑构件100'以及结合到所述板状支撑构件100'上的曲率调节构件200'。板状支撑构件100'包括彼此相对的第一外缘部143和第二外缘部144。曲率调节构件200'的设置在所述两个外缘部143和144之间。曲率调节构件200'构造为能够使得板状支撑构件100'的两个外缘部143和144向所述板状支撑构件的板面一侧弯曲，从而得到不同曲率的弯曲支撑面。
在本公开第二实施例提供的承载装置20中，板状支撑构件100'包括第四板状构件140，曲率调节构件200'包括至少一个第一弹性构件260，所述至少一个第一弹性构件260可拆卸地连接到第四板状构件140的主表面侧142上。所述至少一个第一弹性构件260构造为能够对第四板状构件140施力以使得所述第四板状构件140的第三外缘部143和第四外缘部144向所述第四板状构件140的板面上侧或下侧弯曲形成弯曲支撑面。在图中，第四板状构件140的上表面可提供为该弯曲支撑面。由此，柔性显示面板可设置在第四板状构件140的上表面上。通过调节第一弹性构件260对第四板状构件140施加的力，可实现对第四板状构件140的曲率的调节。例如，安装在第四板状构件140的主表面侧142上的第一弹性构件260可以处于压缩状态或者拉伸状态。
例如，第四板状构件140可以是厚度均匀的弧面构件，也可以是厚度由中间向两端逐渐减小的板状构件。
例如，如图7所示，在一个示例中，第四板状构件140还包括设置在所述主表面侧142上的第一凹槽141。所述至少一个第一弹性构件260构造为可拆卸地跨设在所述第一凹槽141的相对两侧外部，但本公开不局限于此种情况。第一弹性构件260也可设置在所述第一凹槽141的相对两侧内部。第一弹性构件260设置在第一凹槽141内可使主表面侧142较为平整，有利于实现产品均匀的外观和减小产品的厚度。此外，由于在第四板状构件140的主表面侧142上设置有第一凹槽141，可使得第四板状构件140位于第一凹槽141的相对两侧的部分容易相对于第一凹槽141产生弯曲，进而可增大第四板状构件140的曲率调节范围。
例如，如图8所示，在一个示例中，板状支撑构件100'还可以包括可拆卸地安装到所述第四板状构件140的所述主表面侧142的第五板状构件150，所述第五板状构件150上设置有与所述第一凹槽141连通且重叠的第二凹槽151。在另一示例中，第一凹槽141与第二凹槽151可以不彼此连通或不彼此重叠。例如，第五板状构件150在X和Y方向的长度可分别大于第四板状构件140在相应方向上的长度。例如，第二凹槽151在X和Y方向的长度可分别大于或小于第一凹槽141在相应方向上的长度，第一凹槽141和第二凹槽151可以完全重叠，也可以是至少有一部分重叠。例如，第一凹槽141和第二凹槽151例如具有V型截面。
例如，如图8所示，所述曲率调节构件200'还可以包括至少一个第二弹性构件261，所述至少一个第二弹性构件261构造为可拆卸地跨设在所述第二凹槽151的相对两侧和/或设置在所述第二凹槽151内。例如，在第一凹槽141和第二凹槽151中分别设置有第一弹性构件260和第二弹性构件261，第一弹性构件260和第二弹性构件261分别对第一凹槽141和第二凹槽151施加推力或拉力，进而分别使第四板状构件140和第五板状构件150的曲率发生变化。第四板状构件140和第五板状构件150例如通过附加的锁固装置结合在一起，通过相互作用产生一个稳定的弯曲支撑面。在另一示例中，第五板状构件150的第二凹槽151内的第二弹性构件261是可以省去的。在又一示例中，第五板状构件150的第二凹槽151也是可以省去的。
例如，在本公开第二实施例提供的承载装置10中，第一凹槽141和第二凹槽151可以分别平行于第四板状构件140的边缘，即平行于Y方向设置(如图9A、图9B、图9D所示)，也可以不平行于所述第四板状构件140的边缘，即不平行于Y方向设置，而是与Y方向具有锐角或钝角(如图9C所示)。例如，如图9A所示，第四板状构件140和第五板状构件150上可分别具有多个第一凹槽141和第二凹槽151，凹槽数量的增多可使第四板状构件140和第五板状构件150的曲率更容易发生变化，使形成的弯曲支撑面的形状更加多变。例如，如图9B至9D所示，第一凹槽141和第二凹槽151可以是分别在Y方向上贯通第四板状构件140和第五板状构件150，或者也可以不贯通第四板状构件140和第五板状构件150，仅设置在第四板状构件140和第五板状构件150中间的一部分。具有多个第一凹槽141和第二凹槽151时，可以有一部分凹槽在Y方向上贯通第四板状构件140和/或第五板状构件150，另一部分凹槽在Y方向上不贯通第四板状构件140和/或第五板状构件150。
所述至少一个第一和第二弹性构件包括弹簧和/或弹性体。
例如，所述至少一个第一和第二弹性构件均为弹簧。如图7、8和10所示，第四板状构件140的下表面设置有承力块160，承力块160与第四板状构件140固定连接。承力块160上设置有弹簧固定孔270，作为第一和/或第二弹性构件的弹簧可以通过弹簧固定孔270连接到承力块160，进而连接到第四板状构件140上。例如，承力块160可以由金属、玻璃、陶瓷、聚合物等不易形变、刚性较大的材料制成。例如，承力块160可以与第四板状构件140材质一致。此外，弹簧的一端或两端可设置连接到承力块160的卡扣，实现与承力块160及第四板状构件140可拆卸地连接。当然，可拆卸地连接方式不仅限于卡扣，其它能实现可拆卸连接的类似方式均可应用在此。可拆卸的连接方式可方便更换不同弹性系数和/或不同长度的弹簧，进而通过调节弹簧对承力块160及第四板状构件140施加的拉力或推力的大小，实现不同曲率的调节。以上仅说明了第四板状构件140的设置弹簧的方式，第五板状构件150上也可使用类似方式设置弹簧或其他弹性构件，在此不再赘述。此外，可以理解的是，上述实施例中的承力块160并不是必需的。例如，在图8所示的实施例的变型中，设置在第一凹槽141的相对两个侧壁上的承力块 160可以被省去，第一弹性构件260(例如，弹簧)的两端例如分别直接可拆卸地连接到第一凹槽的两个相对侧壁上；进一步地，设置第二凹槽151的相对两个侧壁上的承力块160以及安装在该承力块160上的第二弹性构件261也可以省去。
例如，如图11所示，第四板状构件140的一个第一凹槽上可设置有多个作为第一弹性构件260的弹簧。根据不同的应用需求，可以调节弹簧的数量，弹簧数量的增减也可以调节弹簧对承力块160及第四板状构件140施加的拉力或推力的大小，实现不同曲率的调节。第五板状构件150也可以在其一个第二凹槽上具有多条弹簧或其他弹性构件。
例如，如图12所示，弹簧260的形状不局限于条状弹簧，也可以为半圆形弹簧。图13给出了一些可用的弹簧的示例，例如包括，三角形弹簧、梯形弹簧或各种异性弹簧。应该理解的是，本公开的实施例并不限制于使用的弹簧的形状，只要其能对第四板状构件140产生推力或拉力的弹性部件均可使用。
例如，在所述至少一个第一和/或第二弹性构件为弹性体的情况下，该弹性体可具有与第一和/或第二凹槽匹配的形状以可拆卸地填充在第一和/或第二凹槽内。通过改变填充在第一和/或第二凹槽内的作为第一和/或第二弹性构件的弹性体的数量和弹性材料，可以有效调节板状支撑构件曲率。弹性体的材料可以为弹性树脂、橡胶等。
本公开第二实施例提供的柔性显示面板的承载装置中，通过在板状支撑构件的背面设置不同拉力强度或者数量的弹簧，使得板状支撑背板的上表面提供为具有不同曲率的弯曲支撑面。这样，使得结合到板状支撑背板的上表面上的柔性显示面板的曲率半径可调节。在本实施例中，承载装置的外缘部无需与将被支撑的显示面板的外侧边重叠，也无需为直边，例如可以为呈非规则形状。
第三实施例
本公开第三实施例提供了一种显示设备1，其包括柔性显示面板D以及构造为承载所述柔性显示面板D的承载装置，其中，所述承载装置为本公开上述任一实施例提供的承载装置，柔性显示面板D位于所述板状支撑构件的弯曲支撑面一侧。
在一个示例中，如图14和15所示，本公开第三实施例提供的显示设备1中采用的承载装置为图1所示实施例提供的承载装置。转轴210、220例如可以连接到柔性显示面板D。例如，轴套280可固定连接到柔性显示面板D的下表面。第一转轴210和第二转轴220经由轴套280设置在柔性显示面板20的下表面上。轴套280可以是单独加工后通过例如卡合等方式设置在柔性显示面板D上，也可以是与柔性显示面板D一体加工成型。
在一个示例中，如图15所示，第三板状130进一步设置于第一板状构件110和第二板状构件120与柔性显示面板D之间。转轴210、220例如连接到所述第三板状构件130的下表面。
例如，所述第三板状构件130的弹性模量小于所述第一板状构件110和所述第二板状构件120的弹性模量。
例如，所述第一板状构件110和所述第二板状构件120在所述柔性显示面板D上的垂直投影不超过所述第三板状构件130在所述柔性显示面板D上的垂直投影。也就是，第一板状构件110和第二板状构件120在XY平面内的垂直投影不超过第三板状构件130在XY平面内的垂直投影。
例如，本公开第三实施例提供的显示设备1中采用的柔性显示面板可以为OLED显示面板，该OLED显示面板例如包括封装基板和阵列基板以及位于其之间的有机致电发光结构。在另一示例中，该柔性显示面板也可是诸如电子墨水柔性显示屏的其他类型的柔性显示面板。
本公开第三实施例提供的显示设备中，显示屏幕的曲率可以调节，使得最佳观赏距离可调节，满足应用场景多元化的需求。
虽然上文中已经用一般性说明及具体实施方式，对本公开作了详尽的描述，但在本公开实施例基础上，可以对之作一些修改或改进，这对本领域技术人员而言是显而易见的。因此，在不偏离本公开精神的基础上所做的这些修改或改进，均属于本公开要求保护的范围。
本申请要求于2015年10月12日递交的中国专利申请第201510659415.4号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (21)

  1. 一种柔性显示面板的承载装置，包括：板状支撑构件以及结合到所述板状支撑构件上的曲率调节构件，
    其中，所述板状支撑构件包括彼此相对的两个外缘部，所述曲率调节构件的至少一部分设置在所述两个外缘部之间，且所述曲率调节构件能够使得所述板状支撑构件的两个外缘部向所述板状支撑构件的板面一侧弯曲，从而得到不同曲率的弯曲支撑面。
  2. 根据权利要求1所述的承载装置，其中，所述板状支撑构件包括彼此并列的第一板状构件和第二板状构件，所述第一板状构件具有靠近所述第二板状构件的第一端部，所述第二板状构件具有靠近所述第一板状构件的第二端部，所述曲率调节构件包括至少一个转轴，所述第一板状构件的第一端部和第二板状构件的第二端部连接到所述至少一个转轴，且所述第一板状构件和所述第二板状构件能够绕所述至少一个转轴所在轴向枢转。
  3. 根据权利要求2所述的承载装置，其中，所述至少一个转轴包括彼此平行且相对位置固定的第一转轴和第二转轴，所述第一板状构件的第一端部连接到所述第一转轴并能够绕所述第一转轴所在轴向旋转，所述第二板状构件的第二端部连接到所述第二转轴并能够绕所述第二转轴所在轴向旋转。
  4. 根据权利要求2所述的承载装置，其中，所述至少一个转轴包括第三转轴，所述第一板状构件的第一端部连接到所述第三转轴并能够绕所述第三转轴所在轴向旋转，所述第二板状构件的第二端部连接到所述第三转轴并能够绕所述第三转轴所在轴向旋转。
  5. 根据权利要求2至4中任一项所述的承载装置，其中，所述曲率调节构件还包括限位构件，所述限位构件固定所述第一板状构件和第二板状构件的相对位置。
  6. 根据权利要求2至5中任一项所述的承载装置，还包括设置在所述第一板状构件和/或所述第二板状构件上的加强筋。
  7. 根据权利要求2至6中任一项所述的承载装置，其中所述第一板状构件和所述第二板状构件的形状包括矩形、梯形、平行条状。
  8. 根据权利要求2至7中任一项所述的承载装置，其中，所述板状支撑 构件还包括位于所述第一板状构件和所述第二板状构件的同一侧的第三板状构件。
  9. 根据权利要求8所述的承载装置，其中，所述第三板状构件的弹性模量小于所述第一板状构件和所述第二板状构件的弹性模量。
  10. 根据权利要求1所述的承载装置，其中，所述板状支撑构件包括第四板状构件，所述曲率调节构件包括至少一个第一弹性构件，所述至少一个第一弹性构件可拆卸地连接到所述第四板状构件的主表面侧上，所述至少一个第一弹性构件能够对所述第四板状构件施力以使得所述第四板状构件的两个外缘部向所述第四板状构件的板面一侧弯曲。
  11. 根据权利要求10所述的承载装置，其中，所述第四板状构件包括设置在所述主表面侧上的第一凹槽，所述至少一个第一弹性构件可拆卸地跨设在所述第一凹槽的相对两侧和/或设置在所述第一凹槽内。
  12. 根据权利要求11所述的承载装置，其中，所述板状支撑构件还包括可拆卸地安装到所述第四板状构件的所述主表面侧的第五板状构件，所述第五板状构件上包括设置得与所述第一凹槽连通且重叠的第二凹槽。
  13. 根据权利要求12所述的承载装置，其中，所述曲率调节构件包括至少一个第二弹性构件，所述至少一个第二弹性构件可拆卸地跨设在所述第二凹槽的相对两侧和/或设置在所述第二凹槽内。
  14. 根据权利要求11至13中任一项所述的承载装置，其中，所述第一凹槽不平行于所述第四板状构件的边缘。
  15. 根据权利要求11至14中任一项所述的承载装置，其中，所述至少一个弹性构件包括弹簧和/或弹性体。
  16. 一种显示设备，包括柔性显示面板以及承载所述柔性显示面板的承载装置，其中，所述承载装置为权利要求1或权利要求10至15中任一项所述的承载装置，所述柔性显示面板位于所述板状支撑构件的板面的所述一侧。
  17. 一种显示设备，包括柔性显示面板以及承载所述柔性显示面板的承载装置，其中，所述承载装置为权利要求2至7中任一项所述的承载装置，所述柔性显示面板位于所述板状支撑构件的板面的所述一侧。
  18. 根据权利要求17所述的显示设备，其中，所述至少一个转轴连接到所述柔性显示面板。
  19. 根据权利要求17所述的显示设备，其中，所述板状支撑构件还包括位于所述第一板状构件和所述第二板状构件与所述柔性显示面板之间的第三板状构件，所述至少一个转轴连接到所述第三板状构件。
  20. 根据权利要求19所述的显示设备，其中，所述第三板状构件的弹性模量小于所述第一板状构件和所述第二板状构件的弹性模量。
  21. 根据权利要求19或20所述的显示设备，其中，所述第一板状构件和所述第二板状构件在所述柔性显示面板上的垂直投影不超过所述第三板状构件在所述柔性显示面板上的垂直投影。
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