WO2022105539A1 - 支撑结构、柔性显示装置 - Google Patents

支撑结构、柔性显示装置 Download PDF

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Publication number
WO2022105539A1
WO2022105539A1 PCT/CN2021/125809 CN2021125809W WO2022105539A1 WO 2022105539 A1 WO2022105539 A1 WO 2022105539A1 CN 2021125809 W CN2021125809 W CN 2021125809W WO 2022105539 A1 WO2022105539 A1 WO 2022105539A1
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WO
WIPO (PCT)
Prior art keywords
hollow
sub
holes
parts
hole
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PCT/CN2021/125809
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English (en)
French (fr)
Inventor
熊韧
杨磊
周明楠
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京东方科技集团股份有限公司
成都京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US17/914,635 priority Critical patent/US20230119924A1/en
Publication of WO2022105539A1 publication Critical patent/WO2022105539A1/zh

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    • 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
    • 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
    • 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
    • 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

  • the present disclosure relates to the technical field of display product manufacturing, and in particular, to a support structure and a flexible display device.
  • the present disclosure provides a support structure and a flexible display device, which can solve the problems of rebound of the support and serious pressure injury to the panel.
  • a support structure for supporting a flexible display panel comprising a bendable area, a non-bendable area, and a support structure located in the bendable area and the flexible display panel. the transition zone between the non-bending zones;
  • the bendable area is provided with a first hollow pattern, and the first hollow pattern includes a plurality of first hollow holes;
  • the transition area is provided with a second hollow pattern, and the second hollow pattern includes a plurality of second hollow holes;
  • the distribution density of the plurality of first hollow holes is greater than the distribution density of the plurality of second hollow holes.
  • the non-bending area includes a first area adjacent to the transition area, the first area is provided with a third hollow pattern, and the third hollow pattern includes a plurality of third hollow holes.
  • the distribution density of the third hollow holes is smaller than the distribution density of the second hollow holes.
  • the bending axis of the bendable area extends along a first direction, and the first hollow hole, the second hollow hole and the third hollow hole are all along the first direction.
  • the elongated strip-shaped through hole, the length of the first hollow hole is greater than or equal to the length of the second hollow hole, and the length of the second hollow hole is greater than or equal to the length of the third hollow hole.
  • the first hollow pattern includes a plurality of rows of first hollow parts arranged side by side in a second direction perpendicular to the first direction, and each row of the first hollow parts includes a plurality of the first hollow parts.
  • Hollow holes, between two adjacent first hollow holes in each row of the first hollow parts is a first connecting part, and the projection of the first connecting part in the second direction is located in the adjacent first hollow parts. on the corresponding first hollow hole of a hollow part;
  • the second hollow pattern includes a plurality of rows of second hollow parts arranged side by side along a second direction perpendicular to the first direction, each row of the second hollow parts includes a plurality of the second hollow holes, and each row of the second hollow parts includes a plurality of the second hollow holes.
  • a second connecting portion is located between two adjacent second hollow holes in the second hollow portion, and the projection of the second connecting portion in the second direction is located at the adjacent second hollow portion. on the corresponding second hollow hole;
  • the third hollow pattern includes a plurality of rows of third hollow parts arranged side by side in a second direction perpendicular to the first direction, and each row of the third hollow parts includes a plurality of the third hollow holes.
  • one of the first connecting parts in one row of the first hollow parts is a first sub-connecting part, and the other row is a first sub-connecting part.
  • the first hollow hole corresponding to the first sub-connecting portion on the first hollow portion is a first sub-hollow hole, and the projection of the first sub-connecting portion in the second direction is located in the second At the center point of a hollow hole.
  • the second hollow hole includes a first sub-hollow portion and a second sub-hollow portion that are arranged side by side and staggered along the first direction
  • the first sub-hollow portion includes a plurality of first sub-hollow holes
  • the second sub-hollowout portion includes a plurality of the second sub-hollow-out holes, the length of the first sub-hollow-out hole is greater than the length of the second sub-hollow-out hole, and one of the second sub-hollowout portion
  • the orthographic projection of the second sub-hollow hole on the adjacent first sub-hollow portion is located in the middle of the corresponding first sub-hollow hole.
  • first distance between two adjacent first hollow holes in the same row of the first hollow parts, and two adjacent second hollow holes in the same row of the second hollow parts
  • second distance between the holes
  • third distance is formed between two adjacent third hollow parts in the same row of the third hollow parts, and the first distance is less than or equal to the second distance
  • the second pitch is less than or equal to the third pitch.
  • the first interval is smaller than the second interval, and the second interval is smaller than the third interval.
  • the first hollow parts in two adjacent rows have a fourth distance in the second direction
  • the second hollow parts in two adjacent columns have a fifth distance in the second direction
  • the adjacent two rows of the second hollow parts have a fifth distance in the second direction.
  • There is a sixth spacing between the two rows of the third hollow parts the fourth spacing is less than or equal to the fifth spacing
  • the fifth spacing is less than or equal to the sixth spacing.
  • the fourth interval is smaller than the fifth interval, and the fifth interval is smaller than the sixth interval.
  • the first hollow hole, the second hollow hole and the third hollow hole have the same width in the second direction.
  • the first hollow pattern includes two first edges arranged opposite to each other along the first direction, and the plurality of rows of the first hollow parts include a third sub-hollow part and a fourth sub-hollow part arranged at intervals,
  • the first hollow hole of the third sub-hollow portion close to the first edge does not penetrate through the first edge, and the first hollow hole of the fourth sub-hollow portion near the first edge penetrates through the first edge. Describe the first edge setting.
  • Embodiments of the present disclosure provide a flexible display device, including a flexible display panel, and the above-mentioned support structure attached to a backlight side of the flexible display panel.
  • a buffer layer made of elastic material is disposed between the support structure and the flexible display panel.
  • a first hollow pattern is arranged in the bendable area
  • a second hollow pattern is arranged in the transition area
  • the density of the first hollow holes distributed in the first hollow pattern is greater than the density of the first hollow holes distributed in the second hollow pattern.
  • the density of the two hollow holes can prevent the occurrence of the rebound phenomenon of the support structure itself, so that the support can be well fitted on the flexible display panel.
  • FIG. 1 is a schematic diagram showing a state in which a support member rebounds in the related art
  • FIG. 2 is a schematic structural diagram of a support structure in an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a first hollow pattern, a second hollow pattern and a third hollow pattern in an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram showing a partial structure of a first hollow pattern and a second hollow pattern in an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of setting parameters of the first hollow pattern, the second hollow pattern and the third hollow pattern in the embodiment of the present disclosure.
  • the support member 2 is attached to one side of the display panel 1.
  • the support member in the related art is generally made of metal.
  • the metal material has high relative modulus (10GPa-200GPa), relatively strong hardness and rigidity, and can be used for flexible display.
  • the panel provides good overall support and rigidity, and can also correct some of the problems of high temperature softening and stress creep.
  • high hardness metal materials are difficult to process, and the bendable area is prone to rebound, which affects the bonding effect between the support and the display panel.
  • FIG. 1 shows a schematic diagram of the state in which the support member rebounds, and the area indicated by the circle 10 is the area where the rebound occurs.
  • this embodiment provides a support structure, in which hollow patterns are arranged in the transition area 2 and the bendable area 3 adjacent to the non-bending area 1 to reduce the rigidity of the support structure, and are arranged in the A plurality of first hollow holes 31 with a first density are distributed in the first hollow pattern of the bendable area 3 , and a plurality of second hollow holes 21 with a second density are distributed in the second hollow pattern of the transition area 2 , the first density is greater than the second density, so that it can adapt to display panels with different curvatures, and can reduce the stress difference between the non-bending area 1 and the bendable area 3, and avoid the non-bending area.
  • a crack occurs at the connection between 1 and the bendable area 3.
  • this embodiment provides a support structure for supporting the flexible display panel, including a bendable area 3 , a non-bendable area 1 and a structure located in the bendable area 3 and the transition zone 2 between the non-bending zone 1;
  • the bendable area 3 is provided with a first hollow pattern, and the first hollow pattern includes a plurality of first hollow holes 31 ;
  • the transition area 2 is provided with a second hollow pattern, and the second hollow pattern includes a plurality of second hollow holes 21;
  • the distribution density of the plurality of first hollow holes 31 is greater than the distribution density of the plurality of second hollow holes 21 .
  • the support structure in this embodiment is a plate-like structure made of metal.
  • the non-bending area 1 includes a first area 4 adjacent to the transition area 2 , the first area 4 is provided with a third hollow pattern, and the third hollow pattern includes The plurality of third hollow holes 31 , and the density of the plurality of third hollow holes 31 is lower than the density of the plurality of second hollow holes 21 .
  • the density of the plurality of first hollow holes 31 is greater than that of the plurality of second hollow holes 21
  • the distribution density of the plurality of second hollow holes 21 is greater than that of the plurality of second hollow holes 21 .
  • the distribution density of the third hollow holes 31 is greater than that of the plurality of first hollow holes 31 .
  • the bendable region 3 is provided with a first hollow pattern
  • the transition region 2 is provided with a second hollow pattern
  • the first region 4 is provided with a third hollow pattern pattern, and the distribution density of the first hollow holes 31 in the first hollow pattern, the distribution density of the second hollow holes 21 in the second hollow pattern, and the third hollow
  • the distribution densities of the plurality of third hollow holes 31 in the holes 31 are different.
  • the density of the plurality of first hollow holes 31 is greater than the density of the plurality of second hollow holes 21 .
  • the density of the holes 21 is greater than the density of the plurality of third hollow holes 31 , thereby reducing the stress difference between adjacent regions, facilitating the uniformity of stress dispersion, and effectively preventing the support structure from breaking.
  • the bending axis of the bendable region 3 extends along the first direction (refer to the X direction in FIG. 3 ), the first hollow hole 31 and the second hollow hole 21 and the third hollow hole 31 are strip-shaped through holes extending along the first direction, the length of the first hollow hole 31 is greater than or equal to the length of the second hollow hole 21, the The length of the second hollow hole 21 is greater than or equal to the length of the third hollow hole 31 .
  • the distribution density of the hollow holes in each area is different, and the first hollow hole 31, the second hollow hole 31, the second hollow hole
  • the specific shape and distribution of the hole 21 and the third hollow hole 31 can be various.
  • the shape of the first hollow hole 31, the second hollow hole 21, and the third hollow hole 31 can be the same, or It can be different, and it can also be that the first hollow hole 31, the second hollow hole 21, and the third hollow hole 31 have the same shape.
  • the first hollow hole 31 , the second hollow hole 21 and the third hollow hole 31 are all bent in the second direction (refer to the Y direction in FIG. 3 ) that is perpendicular to the direction.
  • a strip-shaped through hole extending along the first direction.
  • A represents the length of the corresponding hollow hole.
  • the length of the first hollow hole 31 is greater than the length of the second hollow hole 21 .
  • the second hollow hole The length of 21 is greater than the length of the third hollow hole 31 , which is beneficial to sequentially reduce the rigidity of the corresponding regions.
  • the lengths of the plurality of first hollow holes 31 are exactly the same, the lengths of the plurality of second hollow holes 21 are the same, and the lengths of the plurality of third hollow holes 31 are exactly the same,
  • the lengths of the plurality of hollow holes located in the same area may be exactly the same, may be completely different, or may not be exactly the same, and the specific lengths may be set according to actual needs.
  • the shapes of the first floor hole, the second hollow hole 21 and the third hollow hole 31 are not limited. its combination.
  • the first floor hollow hole, the second hollow hole 21 and the third hollow hole 31 are all strip-shaped structures, and are composed of a rectangle and two opposite short sides of the rectangle. It is formed of a semi-circle, and since there are no sharp corners, it can avoid stress concentration at the end of the rectangle, thereby preventing the support structure from breaking when it is bent along the bendable region 3 .
  • the first hollow pattern includes a plurality of rows of first hollow parts arranged side by side in a second direction perpendicular to the first direction, and each row of the first hollow parts includes a plurality of first hollow parts.
  • a first connecting part is formed between two adjacent first hollow holes 31 in each row of the first hollow parts, and the projection of the first connecting part in the second direction is at on the corresponding first hollow holes 31 of the adjacent first hollow parts;
  • the second hollow pattern includes a plurality of rows of second hollow parts arranged side by side along a second direction perpendicular to the first direction, and each row of the second hollow parts includes a plurality of the second hollow holes 21 , Between two adjacent second hollow holes 21 in each row of the second hollow parts is a second connecting part, and the projection of the second connecting part in the second direction is located in the adjacent second hollow on the corresponding second hollow hole 21 of the part;
  • the third hollow pattern includes a plurality of rows of third hollow parts arranged side by side along a second direction perpendicular to the first direction, and each row of the third hollow parts includes a plurality of the third hollow holes 31 .
  • the force direction of the support structure is the same as the second direction (and the first direction). one direction is perpendicular) parallel.
  • the solid part between the first hollow holes 31 in the two adjacent rows is continuous along the first direction. In this way, when the support structure is bent along the bending axis of the bendable area 3, the solid part between the two adjacent rows of the first hollow holes 31 is subjected to greater stress, and the The bendable region 3 is easily broken.
  • the projection of the first connecting portion in the second direction is located in the corresponding first hollow hole of the adjacent first hollow portion 31, that is, the first hollow holes 31 in the first hollow parts in two adjacent rows are arranged in a staggered manner, and the projection of the second connecting part in the second direction is located in the adjacent second On the corresponding second hollow holes 21 of the hollow parts, that is, the second hollow holes 21 in two adjacent rows of the second hollow parts are arranged in a staggered manner. Breaking of the support structure is avoided.
  • one of the first connecting parts in a row of the first hollow parts is a first sub-connecting part
  • the first hollow holes 31 corresponding to the first sub-connecting parts on the other row of the first hollow parts are the first sub-hollow holes 201
  • the first sub-connecting parts in the second direction are The projection is located at the center point of the first sub-hollow hole 201 .
  • the lengths of the plurality of first hollow holes 31 in the plurality of rows of the first hollow parts in the first direction may be the same or different, and the distribution of the plurality of first hollow holes 31 may be different. According to actual needs, the positions of the first connecting portions between two adjacent first hollow holes 31 in one row of the first hollow portions may be different from those in other rows of the first hollow portions.
  • the second hollow hole 21 includes a first sub-hollow portion and a second sub-hollow portion that are arranged side by side and staggered along the first direction, and the first sub-hollow portion includes a plurality of first hollow portions.
  • the lengths of the second hollow holes 21 may be the same or different, and the lengths of the second hollow holes 21 in the second hollow parts in the same row may be the same or different.
  • the orthographic projection of one of the second sub-hollow holes 202 on the second sub-hollow-out portions on the adjacent first sub-hollow-out portions is not limited to being located in the middle of the corresponding first sub-hollow-out holes 201 .
  • first distance between two adjacent first hollow holes 31 in the same row of the first hollow parts, and adjacent ones in the same row of the second hollow parts
  • second distance between the two second hollow holes 21
  • third distance is formed between two adjacent third hollow parts in the same row of the third hollow parts, and the first distance is less than or equal to The second distance is smaller than or equal to the third distance.
  • the first spacing is smaller than the second spacing
  • the second spacing is smaller than the third spacing
  • a in FIG. 5 represents the distance between two adjacent hollow holes in the same row of hollow parts.
  • the different settings of the first distance, the second distance and the third distance are beneficial to the first distance.
  • the density of a hollow hole 31 , the density of the second hollow hole 21 and the density of the third hollow hole 31 are set differently, thereby facilitating different changes in the rigidity of the corresponding regions.
  • the first spacing is smaller than the second spacing, and the second spacing is smaller than the third spacing, which is beneficial to make the non-bending area 1, the transition area 2, and the bendable area 3 rigid decreasing in sequence, so that the bending stress of each region can be slowly transitioned to prevent the support structure from breaking.
  • the first hollow parts in two adjacent rows have a fourth distance in the second direction
  • the second hollow parts in two adjacent rows have a fifth distance in the second direction.
  • There is a sixth spacing between the third hollow parts in two adjacent rows the fourth spacing is less than or equal to the fifth spacing
  • the fifth spacing is less than or equal to the sixth spacing.
  • the fourth spacing is smaller than the fifth spacing
  • the fifth spacing is smaller than the sixth spacing
  • C in FIG. 5 represents the distance between two adjacent hollow parts located in the same area.
  • the different settings of the fourth distance, the fifth distance and the sixth distance are beneficial to the first hollow part.
  • the different settings of the density of the holes 31 , the density of the second hollow hole 21 and the density of the third hollow hole 31 facilitate different changes in the rigidity of the corresponding regions.
  • the fourth spacing is smaller than the fifth spacing, and the fifth spacing is smaller than the sixth spacing, which is beneficial to the rigidity of the non-bending area 1 , the transition area 2 , and the bendable area 3 decreasing in sequence, so that the bending stress of each region can be slowly transitioned to prevent the support structure from breaking.
  • the widths of the first hollow hole 31 , the second hollow hole 21 and the third hollow hole 31 in the second direction are the same.
  • D in FIG. 5 represents the width of each hollow hole in the same area in the second direction.
  • the thickness of the support structure is 0.02-0.3 mm, but it is not limited thereto.
  • the bending radius R of the bendable region is 0.2-10 mm.
  • the bending radius R of the transition zone is R>10 mm, and the length of the first region 4 in the non-bending zone is 0-10 mm, but not limited thereto.
  • the first hollow pattern includes two first edges arranged opposite to each other along the first direction, and the plurality of rows of the first hollow portions include third sub-hollow portions and fourth sub-hollow portions arranged at intervals.
  • a sub-hollow portion, the first hollow hole 31 of the third sub-hollow portion close to the first edge does not penetrate through the first edge, and the fourth sub-hollow portion is close to the first edge of the first edge.
  • a hollow hole 31 is disposed through the first edge.
  • the arrangement of the first hollow hole 31 of the fourth sub-hollow portion reduces the stress on the non-hollow solid portion between the first edge and the edge hollow hole 301, and avoids Breaking of the edges of the bendable region 3 region.
  • the first hollow holes 31 of each row of the first hollow parts close to the first edge are disposed through the first edge, effectively elevating the support structure in the The flexible force in the second direction prevents the edge of the bendable region 3 from breaking.
  • the second hollowed-out portions in multiple rows are close to the second hollowed-out holes of the first edge. 21 does not penetrate through the first edge, but is not limited thereto, and the second hollow holes 21 in the plurality of rows of the second hollow parts close to the first edge can also be provided at least partially through the first edge.
  • the non-bending area 1 mainly plays a supporting role, and the third hollow pattern on the first area 4 is arranged to reduce the stress between the non-bending area 1 and the transition area 2 Therefore, in this embodiment, the third hollow holes 31 of the plurality of rows of the third hollow parts close to the first edge may not be provided through the first edge, but not limited thereto.
  • Embodiments of the present disclosure provide a flexible display device, including a flexible display panel, and the above-mentioned support structure attached to a backlight side of the flexible display panel.
  • a buffer layer made of an elastic material is disposed between the support structure and the flexible display panel.
  • the elastic material may be rubber, silicone, foam, etc., so as to avoid the support structure from crushing the display panel.
  • the flexible display device in this embodiment includes a flexible display panel.
  • the flexible display panel is an OLED display panel
  • the support structure is located on the backlight side of the flexible display panel.
  • the backlight assembly is located between the flexible display panel and the metal support.

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  • General Physics & Mathematics (AREA)
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  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

本公开涉及一种支撑结构，设置在柔性显示面板的一侧，包括可弯折区、非弯折区和位于所述可弯折区和所述非弯折区之间的过渡区；所述可弯折区设置有第一镂空图案，所述第一镂空图案包括多个第一镂空孔；所述过渡区设置有第二镂空图案，所述第二镂空图案包括多个第二镂空孔；多个所述第一镂空孔的密度大于多个所述第二镂空孔的密度。本公开还涉及一种柔性显示装置。

Description

支撑结构、柔性显示装置
相关申请的交叉引用
本申请主张在2020年11月23日在中国提交的中国专利申请号No.202011320571.5的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及显示产品制作技术领域，尤其涉及一种支撑结构、柔性显示装置。
背景技术
随着OLED产品尺寸越来越大，OLED产品的背部受到的各类机械撞击的发生几率也会相应提高，由此导致的外观不良也越来越高；目前OLED产品常用的pad bending(Pad弯折)技术，运用在大尺寸上时，由于面板在弯折时产生的回弹力较大，经常会在弯折的区域产生peeling(剥离)的问题；大尺寸模组设计时，会加入高强度金属做支撑件，解决膜层剥离的问题。但是，普通的金属件在贴合时，金属件本身会对面板产生严重压伤、反弹等问题。
发明内容
为了解决上述技术问题，本公开提供一种支撑结构、柔性显示装置，解决支撑件反弹、以及对面板产生严重压伤等问题。
为了达到上述目的，本公开实施例采用的技术方案是：一种支撑结构，用于对柔性显示面板进行支撑，包括可弯折区、非弯折区和位于所述可弯折区和所述非弯折区之间的过渡区；
所述可弯折区设置有第一镂空图案，所述第一镂空图案包括多个第一镂空孔；
所述过渡区设置有第二镂空图案，所述第二镂空图案包括多个第二镂空孔；
多个所述第一镂空孔的分布密度大于多个所述第二镂空孔的分布密度。
可选的，所述非弯折区包括与所述过渡区相邻的第一区域，所述第一区域设置有第三镂空图案，所述第三镂空图案包括多个第三镂空孔，多个所述第三 镂空孔的分布密度小于多个所述第二镂空孔的分布密度。
可选的，所述可弯折区的弯折轴线沿第一方向延伸设置，所述第一镂空孔、所述第二镂空孔和所述第三镂空孔均为沿着所述第一方向延伸设置的条形通孔，所述第一镂空孔的长度大于或等于所述的第二镂空孔的长度，所述第二镂空孔的长度大于或等于所述第三镂空孔的长度。
可选的，所述第一镂空图案包括沿与所述第一方向相垂直的第二方向上并排设置的多列第一镂空部，每列所述第一镂空部包括多个所述第一镂空孔，每列所述第一镂空部中相邻两个第一镂空孔之间为第一连接部，所述第一连接部在所述第二方向上的投影位于相邻的所述第一镂空部的对应的所述第一镂空孔上；
所述第二镂空图案包括沿与所述第一方向相垂直的第二方向上并排设置的多列第二镂空部，每列所述第二镂空部包括多个所述第二镂空孔，每列所述第二镂空部中相邻两个第二镂空孔之间为第二连接部，所述第二连接部在所述第二方向上的投影位于相邻的所述第二镂空部的对应的所述第二镂空孔上；
所述第三镂空图案包括沿与所述第一方向相垂直的第二方向上并排设置的多列第三镂空部，每列所述第三镂空部包括多个所述第三镂空孔。
可选的，所述第一镂空图案内的相邻的两列所述第一镂空部中，一列所述第一镂空部中一个所述第一连接部为第一子连接部，另一列所述第一镂空部上与所述第一子连接部对应的所述第一镂空孔为第一子镂空孔，所述第一子连接部在所述第二方向上的投影、位于所述第一子镂空孔的中心点处。
可选的，所述第二镂空孔包括沿所述第一方向并排且交错设置的第一子镂空部和第二子镂空部，所述第一子镂空部包括多个第一子镂空孔，所述第二子镂空部包括多个所述第二子镂空孔，所述第一子镂空孔的长度大于所述第二子镂空孔的长度，且一个所述第二子镂空部上的一个所述第二子镂空孔在相邻的所述第一子镂空部上的正投影，位于对应的所述第一子镂空孔的中部。
可选的，在同一列所述第一镂空部中相邻的两个所述第一镂空孔之间具有第一间距，在同一列所述第二镂空部中相邻的两个第二镂空孔之间具有第二间距，在同一列所述第三镂空部中相邻的两个所述第三镂空部之间具有第三间距，所述第一间距小于或等于所述第二间距，所述第二间距小于或等于所述第三间 距。
可选的，所述第一间距小于所述第二间距，所述第二间距小于所述第三间距。
可选的，相邻两列所述第一镂空部在所述第二方向上具有第四间距，相邻两列所述第二镂空部在所述第二方向上具有第五间距，相邻两列所述第三镂空部之间具有第六间距，所述第四间距小于或等于所述第五间距，所述第五间距小于或等于所述第六间距。
可选的，所述第四间距小于所述第五间距，所述第五间距小于所述第六间距。
可选的，所述第一镂空孔、所述第二镂空孔和所述第三镂空孔在所述第二方向上的宽度相同。
可选的，所述第一镂空图案包括沿所述第一方向相对设置的两个第一边缘，多列所述第一镂空部包括间隔设置的第三子镂空部和第四子镂空部，所述第三子镂空部靠近所述第一边缘的所述第一镂空孔未贯穿所述第一边缘，所述第四子镂空部靠近所述第一边缘的所述第一镂空孔贯穿所述第一边缘设置。
本公开实施例提供一种柔性显示装置，包括柔性显示面板，和贴合于所述柔性显示面板的背光侧的上述的支撑结构。
可选的，所述支撑结构和所述柔性显示面板之间设置有弹性材料制成的缓冲层。
本公开的有益效果是：在可弯折区设置第一镂空图案，在过渡区设置第二镂空图案，且第一镂空图案中分布的第一镂空孔的密度大于第二镂空图案中分布的第二镂空孔的密度，这样可以防止支撑结构本身的反弹现象的发生，使得支撑件可以很好的贴合于柔性显示面板上。
附图说明
图1表示相关技术中支撑件发生反弹的状态示意图；
图2表示本公开实施例中支撑结构的结构示意图；
图3表示本公开实施例中第一镂空图案、第二镂空图案和第三镂空图案的结构示意图；
图4表示本公开实施例中第一镂空图案和第二镂空图案的局部结构示意图；
图5表示本公开实施例中所述第一镂空图案、第二镂空图案和第三镂空图案的设置参数示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，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。
在本公开的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
支撑件2贴合于显示面板1的一侧，相关技术中的支撑件一般是采用金属制成的，金属材料相对模量高(10GPa-200GPa)，硬度、刚性相对较强，能为柔性显示面板提供很好的整体支撑性和刚性补充，另外能矫正部分高温软化及应力蠕变的问题。但是，高硬度的金属材料加工难度大，可弯折区容易出现反弹，而影响支撑件与显示面板的贴合效果。图1中表示出了支撑件出现反弹的状态示意图，圆圈10所表示出的区域即出现反弹的区域。
为了解决上述技术问题，本实施例中提供一种支撑结构，在与非弯折区1相邻过渡区2和可弯折区3均设置镂空图案，以减小支撑结构的刚性，且设置于所述可弯折区3的第一镂空图案中分布具有第一密度的多个第一镂空孔31，所述过渡区2的第二镂空图案分布具有第二密度的多个第二镂空孔21，所述第一密度大于所述第二密度，从而可以适应具有不同曲率的显示面板，并且可以减小非弯折区1和可弯折区3之间的应力差，避免在非弯折区1和可弯折区 3的连接处产生裂痕。
具体的，如图2-图5所示，本实施例提供一种支撑结构，用于对柔性显示面板进行支撑，包括可弯折区3、非弯折区1和位于所述可弯折区3和所述非弯折区1之间的过渡区2；
所述可弯折区3设置有第一镂空图案，所述第一镂空图案包括多个第一镂空孔31；
所述过渡区2设置有第二镂空图案，所述第二镂空图案包括多个第二镂空孔21；
多个所述第一镂空孔31的分布密度大于多个所述第二镂空孔21的分布密度。
本实施例中的支撑结构是采用金属制成的板状结构，采用上述方案，可以减小所述支撑结构的刚性，提高支撑结构的弯折能力，提高金属支撑件的信赖性。
本实施例中示例性的，所述非弯折区1包括与所述过渡区2相邻的第一区域4，所述第一区域4设置有第三镂空图案，所述第三镂空图案包括多个第三镂空孔31，多个所述第三镂空孔31的密度小于多个所述第二镂空孔21的密度。
本实施例中的一具体实施方式中，多个所述第一镂空孔31的密度大于多个所述第二镂空孔21的密度，多个所述第二镂空孔21的分布密度大于多个所述第三镂空孔31的分布密度。
支撑结构弯折时，设置镂图案的图案化区域受到的应力较小，而与图案化区域相邻的非图案化区域受到的应力较大，在支撑结构的图案化区域和非图案化区域的交界处存在较大的应力集中，而应力集中容易导致支撑件断裂。为了利于应力分散的均匀性，本实施例中，将所述可弯折区3设置第一镂空图案，在所述过渡区2设置第二镂空图案，在所述第一区域4设置第三镂空图案，并且所述第一镂空图案中的多个所述第一镂空孔31的分布密度、所述第二镂空图案中的多个所述第二镂空孔21的分布密度以及所述第三镂空孔31中的多个第三镂空孔31的分布密度不同，优选的，多个所述第一镂空孔31的密度大于多个所述第二镂空孔21的密度，多个所述第二镂空孔21的密度大于多个所述 第三镂空孔31的密度，从而减小相邻的区域之间的应力的差别，利于应力分散的均匀性，有效的防止所述支撑结构的断裂。
本实施例中示例性的，所述可弯折区3的弯折轴线沿第一方向延伸设置(参考图3中的X方向)，所述第一镂空孔31、所述第二镂空孔21和所述第三镂空孔31均为沿着所述第一方向延伸设置的条形通孔，所述第一镂空孔31的长度大于或等于所述的第二镂空孔21的长度，所述第二镂空孔21的长度大于或等于所述第三镂空孔31的长度。
为了使得支撑结构的刚性由非弯折区1、过渡区2、可弯折区3依次减小，各个区域的镂空孔的分布密度不同，而所述第一镂空孔31、所述第二镂空孔21、所述第三镂空孔31的具体形状、分布方式可以有多种，所述第一镂空孔31、所述第二镂空孔21、所述第三镂空孔31的形状可以相同，也可以不同，也可以是所述第一镂空孔31、所述第二镂空孔21、所述第三镂空孔31的两种镂空孔的形状相同，由于所述支撑结构是沿与所述第一方向相垂直的第二方向(参考图3中的Y方向)弯折的，本实施例中，所述第一镂空孔31、所述第二镂空孔21和所述第三镂空孔31均为沿着所述第一方向延伸设置的条形通孔。
参考图5，A表示的是相应的镂空孔的长度，本实施例中示例性的，所述第一镂空孔31的长度大于所述的第二镂空孔21的长度，所述第二镂空孔21的长度大于所述第三镂空孔31的长度，利于使得对应的各个区域的刚性依次减小。
本实施例中示例性的，多个所述第一镂空孔31的长度完全相同，多个所述第二镂空孔21的长度完全相同，多个所述第三镂空孔31的长度完全相同，但是需要说明的是，位于同一区域中的多个所述镂空孔的长度可以完全相同，可以完全不同，也可以不完全相同，具体的可根据实际需要设定。
本实施例中对所述第一楼空孔，第二镂空孔21、第三镂空孔31的形状均不做限定，可以为圆形、椭圆形、矩形、多边形等规则或不规则的形状或其组合。
本实施例的一具体实施方式中，所述第一楼空孔，第二镂空孔21、第三镂空孔31均为条形结构，且由矩形和分别位于矩形的相对两个短边的两个半圆构成，由于不存在尖锐的拐角，因而可以避免在矩形的端部产生应力集 中，进而避免了支撑结构沿所述可弯折区3域弯折时发生断裂。
本实施例中示例性的，所述第一镂空图案包括沿与所述第一方向相垂直的第二方向上并排设置的多列第一镂空部，每列所述第一镂空部包括多个所述第一镂空孔31，每列所述第一镂空部中相邻两个第一镂空孔31之间为第一连接部，所述第一连接部在所述第二方向上的投影位于相邻的所述第一镂空部的对应的所述第一镂空孔31上；
所述第二镂空图案包括沿与所述第一方向相垂直的第二方向上并排设置的多列第二镂空部，每列所述第二镂空部包括多个所述第二镂空孔21，每列所述第二镂空部中相邻两个第二镂空孔21之间为第二连接部，所述第二连接部在所述第二方向上的投影位于相邻的所述第二镂空部的对应的所述第二镂空孔21上；
所述第三镂空图案包括沿与所述第一方向相垂直的第二方向上并排设置的多列第三镂空部，每列所述第三镂空部包括多个所述第三镂空孔31。
沿所述可弯折区3的弯折轴(弯折轴沿所述第一方向延伸设置)对支撑结构进行弯折时，支撑结构的受力方向与所述第二方向(与所述第一方向相垂直)平行。考虑到若相邻两列所述第一镂空部中的第一镂空孔31正对设置，则沿所述第一方向，相邻两排所述第一镂空孔31之间的实体部分是连续的，这样一来，沿所述可弯折区3的弯折轴对支撑结构进行弯折时，相邻两排所述第一镂空孔31之间的实体部分受到的应力较大，所述可弯折区3容易断裂。同理，若相邻两列所述第二镂空部中的第二镂空孔21正对设置，相邻两排所述第二镂空孔21之间的实体部分受到的应力较大，所述过渡区2容易断裂。为了解决这一问题，本实施例中的一实施方式中，所述第一连接部在所述第二方向上的投影位于相邻的所述第一镂空部的对应的所述第一镂空孔31上，即相邻两列所述第一镂空部中的所述第一镂空孔31相交错设置，所述第二连接部在所述第二方向上的投影位于相邻的所述第二镂空部的对应的所述第二镂空孔21上，即相邻两列所述第二镂空部中的所述第二镂空孔21相交错设置。避免了所述支撑结构的断裂。
本实施例中示例性的，所述第一镂空图案内的相邻的两列所述第一镂空部中，一列所述第一镂空部中一个所述第一连接部为第一子连接部，另一列所述 第一镂空部上与所述第一子连接部对应的所述第一镂空孔31为第一子镂空孔201，所述第一子连接部在所述第二方向上的投影、位于所述第一子镂空孔201的中心点处。
需要说明的是，多列所述第一镂空部中的多个所述第一镂空孔31在所述第一方向上的长度可以相同、可以不同，多个所述第一镂空孔31的分布根据实际需要设定，则，一列所述第一镂空部中相邻两个所述第一镂空孔31之间的第一连接部对应于其他列第一镂空部中的位置可以不同。
本实施例中示例性的，所述第二镂空孔21包括沿所述第一方向并排且交错设置的第一子镂空部和第二子镂空部，所述第一子镂空部包括多个第一子镂空孔201，所述第二子镂空部包括多个所述第二子镂空孔202，所述第一子镂空孔201的长度大于所述第二子镂空孔202的长度，且一个所述第二子镂空部上的一个所述第二子镂空孔202在相邻的所述第一子镂空部上的正投影，位于对应的所述第一子镂空孔201的中部。
需要说明的是，所述第二镂空孔21的长度可以相同，也可以不同，同一列所述第二镂空部中的所述第二镂空孔21的长度可以相同，可以不同，则一个所述第二子镂空部上的一个所述第二子镂空孔202在相邻的所述第一子镂空部上的正投影，并不限于位于对应的所述第一子镂空孔201的中部。
本实施例中示例性的，在同一列所述第一镂空部中相邻的两个所述第一镂空孔31之间具有第一间距，在同一列所述第二镂空部中相邻的两个第二镂空孔21之间具有第二间距，在同一列所述第三镂空部中相邻的两个所述第三镂空部之间具有第三间距，所述第一间距小于或等于所述第二间距，所述第二间距小于或等于所述第三间距。
本实施例中示例性的，所述第一间距小于所述第二间距，所述第二间距小于所述第三间距。
图5中的B表示位于同一列镂空部中的相邻两个镂空孔之间的间距，所述第一间距、所述第二间距和所述第三间距的不同的设置，利于所述第一镂空孔31的密度、所述第二镂空孔21的密度和所述第三镂空孔31的密度的不同设置，进而利于相应各个区域的刚性的不同的变化。且所述第一间距小于所述第二间距，所述第二间距小于所述第三间距，利于使得所述非弯折区1、所述 过渡区2、所述可弯折区3的刚性依次减小，从而可以缓慢过渡各个区域的弯折应力，防止所述支撑结构断裂。
本实施例中示例性的，相邻两列所述第一镂空部在所述第二方向上具有第四间距，相邻两列所述第二镂空部在所述第二方向上具有第五间距，相邻两列所述第三镂空部之间具有第六间距，所述第四间距小于或等于所述第五间距，所述第五间距小于或等于所述第六间距。
本实施例中示例性的，所述第四间距小于所述第五间距，所述第五间距小于所述第六间距。
图5中的C表示位于同一个区域内的相邻的两个镂空部的间距，所述第四间距、所述第五间距和所述第六间距的不同的设置，利于所述第一镂空孔31的密度、所述第二镂空孔21的密度和所述第三镂空孔31的密度的不同设置，进而利于相应各个区域的刚性的不同的变化。且所述第四间距小于所述第五间距，所述第五间距小于所述第六间距，利于使得所述非弯折区1、所述过渡区2、所述可弯折区3的刚性依次减小，从而可以缓慢过渡各个区域的弯折应力，防止所述支撑结构断裂。
本实施例中示例性的，所述第一镂空孔31、所述第二镂空孔21和所述第三镂空孔31在所述第二方向上的宽度相同。图5中D表示位于同一区域内的各镂空孔在第二方向上的宽度。
本实施例中示例性的，所述支撑结构的厚度为0.02-0.3mm，但并不以此为限。
本实施例中示例性的，所述可弯折区的弯折半径R为0.2～10mm。所述过渡区的弯折半径R>10mm，所述非弯折区中所述第一区域4的长度为0～10mm，但并不以此为限。
参照图5，本实施例中各区域中各镂空孔的参数如下表所示：
Figure PCTCN2021125809-appb-000001
参照图5，本实施例中一具体实施方式中，各区域中各镂空孔的参数如下表所示：
Figure PCTCN2021125809-appb-000002
本实施例中示例性的，所述第一镂空图案包括沿所述第一方向相对设置的两个第一边缘，多列所述第一镂空部包括间隔设置的第三子镂空部和第四子镂空部，所述第三子镂空部靠近所述第一边缘的所述第一镂空孔31未贯穿所述第一边缘，所述第四子镂空部靠近所述第一边缘的所述第一镂空孔31贯穿所 述第一边缘设置。
多列所述第一镂空部靠近所述第一边缘的边缘镂空孔301如果与所述第一边缘之间均具有一定的距离，即所述第一边缘与边缘镂空孔301之间的部分为非镂空的实体部分，则在弯折时，所述第一边缘与边缘镂空孔301之间的部分为非镂空的实体部分受到的应力较大，所述可弯折区3域容易断裂。本实施例中，所述第四子镂空部的所述第一镂空孔31的设置，减缓了所述第一边缘与边缘镂空孔301之间的部分为非镂空的实体部分受到的应力，避免所述可弯折区3域的边缘的断裂。
在本实施例的一实施方式中，每列所述第一镂空部靠近所述第一边缘的所述第一镂空孔31贯穿所述第一边缘设置，有效的提升所述支撑结构在所述第二方向上的柔韧力，避免了所述可弯折区3域的边缘的断裂。
由于所述过渡区2所需的柔韧性小于所述可弯折区3所需的柔韧性，所以本实施例中，多列所述第二镂空部靠近所述第一边缘的第二镂空孔21未贯穿所述第一边缘，但并不以此为限，多列所述第二镂空部靠近所述第一边缘的第二镂空孔21也可以至少部分贯穿所述第一边缘设置。
所述非弯折区1主要起到支撑作用，所述第一区域4上的所述第三镂空图案的设置是为了减小所述非弯折区1与所述过渡区2之间的应力差别，所以本实施中，多列所述第三镂空部靠近所述第一边缘的第三镂空孔31可以未贯穿所述第一边缘设置，但并不以此为限。
本公开实施例提供一种柔性显示装置，包括柔性显示面板，和贴合于所述柔性显示面板的背光侧的上述的支撑结构。
本实施例中示例性的，所述支撑结构和所述柔性显示面板之间设置有弹性材料制成的缓冲层。
所述弹性材料可以为橡胶、硅胶、泡棉等，避免所述支撑结构压伤显示面板。
需要说明的是，本实施例中所述柔性显示装置包括柔性显示面板，在一具体实施方式中，所述柔性显示面板为OLED显示面板，所述支撑结构位于所述柔性显示面板的背光侧，在柔性显示装置包括背光组件的实施方式中，背光组件位于所述柔性显示面板和所述金属支撑件之间。
以上所述为本公开较佳实施例，需要说明的是，对于本领域普通技术人员来说，在不脱离本公开所述原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本公开保护范围。

Claims (14)

  1. 一种支撑结构，用于对柔性显示面板进行支撑，其中，包括可弯折区、非弯折区和位于所述可弯折区和所述非弯折区之间的过渡区；
    所述可弯折区设置有第一镂空图案，所述第一镂空图案包括多个第一镂空孔；
    所述过渡区设置有第二镂空图案，所述第二镂空图案包括多个第二镂空孔；
    多个所述第一镂空孔的分布密度大于多个所述第二镂空孔的分布密度。
  2. 根据权利要求1所述的支撑结构，其中，所述非弯折区包括与所述过渡区相邻的第一区域，所述第一区域设置有第三镂空图案，所述第三镂空图案包括多个第三镂空孔，多个所述第三镂空孔的分布密度小于多个所述第二镂空孔的分布密度。
  3. 根据权利要求2所述的支撑结构，其中，所述可弯折区的弯折轴线沿第一方向延伸设置，所述第一镂空孔、所述第二镂空孔和所述第三镂空孔均为沿着所述第一方向延伸设置的条形通孔，所述第一镂空孔的长度大于或等于所述第二镂空孔的长度，所述第二镂空孔的长度大于或等于所述第三镂空孔的长度。
  4. 根据权利要求3所述的支撑结构，其中，所述第一镂空图案包括沿与所述第一方向相垂直的第二方向上并排设置的多列第一镂空部，每列所述第一镂空部包括多个所述第一镂空孔，每列所述第一镂空部中相邻两个第一镂空孔之间为第一连接部，所述第一连接部在所述第二方向上的投影位于相邻的所述第一镂空部的对应的所述第一镂空孔上；
    所述第二镂空图案包括沿与所述第一方向相垂直的第二方向上并排设置的多列第二镂空部，每列所述第二镂空部包括多个所述第二镂空孔，每列所述第二镂空部中相邻两个第二镂空孔之间为第二连接部，所述第二连接部在所述第二方向上的投影位于相邻的所述第二镂空部的对应的所述第二镂空孔上；
    所述第三镂空图案包括沿与所述第一方向相垂直的第二方向上并排设置的多列第三镂空部，每列所述第三镂空部包括多个所述第三镂空孔。
  5. 根据权利要求4所述的支撑结构，其中，所述第一镂空图案内的相邻 的两列所述第一镂空部中，一列所述第一镂空部中一个所述第一连接部为第一子连接部，另一列所述第一镂空部上与所述第一子连接部对应的所述第一镂空孔为第一子镂空孔，所述第一子连接部在所述第二方向上的投影、位于所述第一子镂空孔的中心点处。
  6. 根据权利要求4所述的支撑结构，其中，所述第二镂空孔包括沿所述第一方向并排且交错设置的第一子镂空部和第二子镂空部，所述第一子镂空部包括多个第一子镂空孔，所述第二子镂空部包括多个所述第二子镂空孔，所述第一子镂空孔的长度大于所述第二子镂空孔的长度，且一个所述第二子镂空部上的一个所述第二子镂空孔在相邻的所述第一子镂空部上的正投影，位于对应的所述第一子镂空孔的中部。
  7. 根据权利要求4所述的支撑结构，其中，在同一列所述第一镂空部中相邻的两个所述第一镂空孔之间具有第一间距，在同一列所述第二镂空部中相邻的两个第二镂空孔之间具有第二间距，在同一列所述第三镂空部中相邻的两个所述第三镂空部之间具有第三间距，所述第一间距小于或等于所述第二间距，所述第二间距小于或等于所述第三间距。
  8. 根据权利要求7所述的支撑结构，其中，所述第一间距小于所述第二间距，所述第二间距小于所述第三间距。
  9. 根据权利要求4所述的支撑结构，其中，相邻两列所述第一镂空部在所述第二方向上具有第四间距，相邻两列所述第二镂空部在所述第二方向上具有第五间距，相邻两列所述第三镂空部之间具有第六间距，所述第四间距小于或等于所述第五间距，所述第五间距小于或等于所述第六间距。
  10. 根据权利要求9所述的支撑结构，其中，所述第四间距小于所述第五间距，所述第五间距小于所述第六间距。
  11. 根据权利要求4所述的支撑结构，其中，所述第一镂空孔、所述第二镂空孔和所述第三镂空孔在所述第二方向上的宽度相同。
  12. 根据权利要求4所述的支撑结构，其中，所述第一镂空图案包括沿所述第一方向相对设置的两个第一边缘，多列所述第一镂空部包括间隔设置的第三子镂空部和第四子镂空部，所述第三子镂空部靠近所述第一边缘的所述第一镂空孔未贯穿所述第一边缘，所述第四子镂空部靠近所述第一边缘的所述第一 镂空孔贯穿所述第一边缘设置。
  13. 一种柔性显示装置，其中，包括柔性显示面板，和贴合于所述柔性显示面板的背光侧的如权利要求1-12任一项所述的支撑结构。
  14. 根据权利要求13所述的柔性显示装置，其中，所述支撑结构和所述柔性显示面板之间设置有弹性材料制成的缓冲层。
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