WO2019218584A1 - 柔性oled显示面板及柔性oled显示装置 - Google Patents

柔性oled显示面板及柔性oled显示装置 Download PDF

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Publication number
WO2019218584A1
WO2019218584A1 PCT/CN2018/110031 CN2018110031W WO2019218584A1 WO 2019218584 A1 WO2019218584 A1 WO 2019218584A1 CN 2018110031 W CN2018110031 W CN 2018110031W WO 2019218584 A1 WO2019218584 A1 WO 2019218584A1
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WIPO (PCT)
Prior art keywords
flexible layer
flexible
layer
oled display
display panel
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Application number
PCT/CN2018/110031
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English (en)
French (fr)
Inventor
李云
Original Assignee
武汉华星光电半导体显示技术有限公司
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Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US16/339,360 priority Critical patent/US11031563B1/en
Publication of WO2019218584A1 publication Critical patent/WO2019218584A1/zh

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Classifications

    • 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
    • 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
    • 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 application relates to the field of display technologies, and in particular, to a flexible OLED display panel and a flexible OLED display device.
  • LCDs liquid crystal display panels
  • OLEDs organic light emitting diode display panels
  • the OLED display panel has many advantages such as self-illumination, low driving voltage, high luminous efficiency, high definition and contrast, and flexible display surface and large-area full-color display.
  • a conventional OLED display panel includes a substrate, a display module disposed on the substrate, the display module including a substrate disposed on the substrate, a thin film transistor disposed on the substrate, a patterned pixel defining layer disposed on the thin film transistor, and An OLED element disposed within a pixel definition layer.
  • the substrate is produced by using a double-layer polyimide (PI) film as the substrate, but the PI film may not be formed due to the pressing force of the inner ring PI film and the tensile force of the outer ring PI film. Reversal of the fold.
  • PI polyimide
  • the embodiment of the present application provides a flexible OLED display panel and a flexible OLED display device having a substrate structure capable of reducing the pressing force and the stretching force, so as to solve the problem that the substrate of the existing OLED display panel is easily broken when being bent. technical problem.
  • An embodiment of the present application provides a flexible OLED display panel including a bending region for bending, the bending region being provided with a substrate structure and an OLED display module disposed on the substrate structure, wherein the The substrate structure includes:
  • the flexible structural layer disposed on the base substrate, the flexible structural layer being composed of at least two flexible layers superposed;
  • the flexible layer comprises a plurality of sets of escape holes disposed in the bending zone, and the avoidance holes adjacent to the flexible layer are arranged in a wrong manner;
  • the relief hole of the flexible layer located in the loop of the bending zone is reduced by the pressing force to reduce the pressing force received by the flexible layer;
  • the escape hole of the flexible layer of the outer ring is enlarged by the tensile force to reduce the tensile force received by the flexible layer;
  • each of the set of escape holes is one of a point, a rectangle, a diamond, and a circle, or a combination of any two; the escape holes between adjacent groups of the same flexible layer are arranged in a wrong phase.
  • the flexible layer is provided with two layers, respectively a first flexible layer disposed on the base substrate and a second disposed on the first flexible layer. a flexible layer; when the flexible OLED display panel is bent inward, the first flexible layer is located on an outer ring of the bending zone, and the second flexible layer is located in an inner ring of the bending zone,
  • the number of the relief holes of the first flexible layer is greater than the number of the relief holes of the second flexible layer.
  • the number of the avoidance holes of the second flexible layer is one more than the number of the relief holes of the first flexible layer.
  • the flexible layer is provided with two layers, respectively a first flexible layer disposed on the base substrate and a second disposed on the first flexible layer. a flexible layer; when the flexible OLED display panel is bent outward, the first flexible layer is located in an inner ring of the bending zone, and the second flexible layer is located in an outer ring of the bending zone,
  • the number of the relief holes of the second flexible layer is greater than the number of the relief holes of the first flexible layer.
  • the flexible layer is provided with three layers, respectively a first flexible layer disposed on the base substrate and a second flexible layer disposed on the first flexible layer. a layer and a third flexible layer disposed on the second flexible layer;
  • the number of the avoidance holes of the first flexible layer is equal to the number of the avoidance holes of the second flexible layer, and the number of the avoidance holes of the second flexible layer is smaller than the number of the avoidance holes of the first flexible layer.
  • the number of the avoidance holes of the second flexible layer is one less than the number of the relief holes of the first flexible layer.
  • the flexible layer is a polyimide layer.
  • the present application provides another flexible OLED display panel including a substrate structure and an OLED display module disposed on the substrate structure, the substrate structure including:
  • the flexible structural layer disposed on the base substrate, the flexible structural layer being composed of at least two flexible layers superposed;
  • the OLED display panel includes a bending region for bending, and the flexible layer includes a plurality of sets of escape holes disposed in the bending region, and the avoidance holes of the adjacent flexible layers are disposed in a wrong state;
  • the relief hole of the flexible layer located in the loop of the bending zone is reduced by the pressing force to reduce the pressing force received by the flexible layer;
  • the relief hole of the flexible layer of the outer ring is enlarged by the tensile force to reduce the tensile force to which the flexible layer is subjected.
  • the flexible layer is provided with two layers, respectively a first flexible layer disposed on the base substrate and a second flexible layer disposed on the first flexible layer.
  • first flexible layer is located on an outer ring of the bending zone
  • second flexible layer is located in an inner ring of the bending zone
  • the number of the relief holes of the first flexible layer is greater than the number of the relief holes of the second flexible layer.
  • the number of the relief holes of the second flexible layer is one more than the number of the relief holes of the first flexible layer.
  • the flexible structural layer is formed by superposing the first flexible layer and the second flexible layer, when the OLED display panel is bent inward, that is, the OLED display panel faces the OLED display module. The direction is bent. At this time, the avoidance hole of the first flexible layer and the avoidance hole of the second flexible layer are arranged in a wrong manner so that all the escape holes have corresponding supports, so that the normal use is not generated. influences.
  • the second flexible layer is subjected to a pressing force
  • the first flexible layer is subjected to the pressing force while being subjected to the stretching force, so in order to further slow the stretching force, the first flexible layer is The number of escape hole groups is greater than the number of escape hole groups of the second flexible layer.
  • the difference from the other first embodiment is that the flexible layer is provided with two layers, respectively a first flexible layer disposed on the base substrate. And a second flexible layer disposed on the first flexible layer; when the flexible OLED display panel is bent outward, the first flexible layer is located in an inner ring of the bending region, the second flexibility The layer is located on the outer ring of the bending zone,
  • the number of the relief holes of the second flexible layer is greater than the number of the relief holes of the first flexible layer.
  • the number of the relief holes of the second flexible layer is one more than the number of the relief holes of the first flexible layer.
  • another third embodiment is different from the other first embodiment in that the flexible layer is provided with three layers, respectively, which are disposed on the base substrate a flexible layer, a second flexible layer disposed on the first flexible layer, and a third flexible layer disposed on the second flexible layer;
  • the number of the avoidance holes of the first flexible layer is equal to the number of the avoidance holes of the second flexible layer, and the number of the avoidance holes of the second flexible layer is smaller than the avoidance hole of the first flexible layer. number.
  • the number of the relief holes of the second flexible layer is one less than the number of the relief holes of the first flexible layer.
  • the number of the relief holes of the first flexible layer adjacent to the base substrate and the third flexible layer adjacent to the OLED display module is more than the number of the relief holes of the second flexible layer.
  • the flexible layer is a polyimide layer.
  • each set of the escape holes is one of a point, a rectangle, a diamond, and a circle, or a combination of any two .
  • the escape holes between adjacent groups of the same flexible layer are arranged in a wrong phase.
  • the present application also relates to a flexible OLED display device comprising a flexible OLED display panel, the flexible OLED display panel comprising a bending region for bending, the bending region being provided with a substrate structure and disposed on the substrate structure
  • the OLED display module wherein the substrate structure comprises:
  • the flexible structural layer disposed on the base substrate, the flexible structural layer being composed of at least two flexible layers superposed;
  • the flexible layer comprises a plurality of sets of avoidance holes disposed in the bending zone, and the avoidance holes adjacent to the flexible layer are arranged in a wrong manner;
  • the relief hole of the flexible layer located in the loop of the bending zone is reduced by the pressing force to reduce the pressing force received by the flexible layer;
  • the relief hole of the flexible layer of the outer ring is enlarged by the tensile force to reduce the tensile force to which the flexible layer is subjected.
  • the flexible layer is provided with two layers, respectively a first flexible layer disposed on the base substrate and a second flexible layer disposed on the first flexible layer a layer; when the flexible OLED display panel is bent inward, the first flexible layer is located in an outer ring of the bending zone, and the second flexible layer is located in an inner ring of the bending zone,
  • the number of the relief holes of the first flexible layer is greater than the number of the relief holes of the second flexible layer.
  • the number of the relief holes of the second flexible layer is one more than the number of the relief holes of the first flexible layer.
  • the flexible OLED display device further includes the second embodiment and the third embodiment of the flexible OLED display panel described above, with specific reference to the structural content of the flexible OLED display panel.
  • the flexible OLED display panel and the flexible OLED display device of the present application have a flexible structure layer having at least two flexible layers disposed on the base substrate, and the escape holes between adjacent flexible layers
  • the dislocation setting on the one hand, makes the avoidance hole receive corresponding support to avoid adverse effects
  • the flexible layer located in the bending zone is subjected to the pressing force, and the aperture of the avoiding hole is reduced to reduce the pressing force, and the flexible layer located in the outer ring of the bending zone is subjected to the tensile force, avoiding The pore diameter becomes larger, and the tensile force is slowed down, thereby avoiding the rupture of the OLED panel in the bending region; and solving the technical problem that the substrate of the existing OLED display panel is easily broken when being bent.
  • FIG. 1 is a cross-sectional structural view showing a first embodiment of a flexible OLED display panel of the present application in a flattened state
  • FIG. 2 is a cross-sectional structural view showing the first embodiment of the flexible OLED display panel of the present application in a folded state
  • FIG. 3 is a top plan view showing the first flexible layer and the second flexible layer of the first embodiment of the flexible OLED display panel of the present application;
  • FIG. 4 is a cross-sectional structural view showing a second embodiment of the flexible OLED display panel of the present application in a flattened state
  • FIG. 5 is a cross-sectional structural view showing a second embodiment of the flexible OLED display panel of the present application in a folded state
  • FIG. 6 is a top plan view showing a first flexible layer and a second flexible layer of a second embodiment of the flexible OLED display panel of the present application;
  • FIG. 7 is a cross-sectional structural view showing a third embodiment of the flexible OLED display panel of the present application in a flattened state.
  • FIG. 1 is a cross-sectional structural view showing a first embodiment of a flexible OLED display panel of the present application in a flattened state;
  • FIG. 2 is a first embodiment of the flexible OLED display panel of the present application.
  • FIG. 3 is a schematic top plan view of the first flexible layer and the second flexible layer of the first embodiment of the flexible OLED display panel of the present application.
  • a flexible OLED display panel includes a substrate structure and an OLED display module 11 disposed on the substrate structure.
  • the substrate structure includes a base substrate 12 and a flexible structural layer 13.
  • the OLED display module includes a substrate disposed on the substrate structure, a thin film transistor disposed on the substrate, a patterned pixel defining layer disposed on the thin film transistor, and an OLED element disposed within the pixel defining layer.
  • the flexible structural layer 13 is disposed on the base substrate 12.
  • the flexible structural layer 13 is composed of at least two flexible layers superposed.
  • the OLED display panel comprises a bending area A1 for bending.
  • the flexible layer includes a plurality of sets of escape holes 131 disposed in the bending zone, and the escape holes 131 of the adjacent flexible layers 13 are disposed in a wrong manner.
  • the relief hole 131 of the flexible layer located in the inner circumference of the bending zone A1 is reduced by the pressing force to reduce the pressing force of the flexible layer; the outer ring of the bending zone A1 is located.
  • the relief hole 131 of the flexible layer is enlarged by the tensile force to reduce the tensile force of the flexible layer.
  • the dislocation holes of the avoidance holes are arranged between adjacent flexible layers in the flexible structural layer, so that all the avoidance holes have corresponding supports, so that the normal use is not affected; With at least two layers of soft layer, it increases flexibility and guarantees a certain supporting force.
  • the flexible layer located in the inner circumference of the bending area A1 is subjected to a pressing force, so that the diameter of the escape hole 131 disposed on the flexible layer of the inner ring becomes smaller.
  • the flexible layer is relieved of the pressing force; the flexible layer located on the outer ring of the bending zone A1 is subjected to a tensile force, so that the diameter of the escape hole 131 disposed on the flexible layer of the outer ring becomes larger, and the flexible layer is relieved of the tensile force.
  • the OLED display panel is prevented from being wounded when being bent.
  • the flexible layer is a polyimide layer.
  • polyimide has excellent mechanical properties.
  • the flexible layer is provided with two layers, which are a first flexible layer 132 disposed on the base substrate 12 and a second flexible layer 133 disposed on the first flexible layer 132, respectively.
  • first flexible layer 132 is located on the outer ring of the bending zone A1
  • second flexible layer 133 is located in the inner ring of the bending zone A1.
  • the number of the avoidance holes 131 of the first flexible layer 132 is larger than the number of the avoidance holes 131 of the second flexible layer 133. Such an arrangement not only slows down the pressing force applied to the first flexible layer 132, but further slows the tensile force received.
  • the number of the relief holes 131 of the second flexible layer 133 is one more than the number of the relief holes 131 of the first flexible layer 132.
  • the thicknesses of the first flexible layer 132 and the second flexible layer 133 are very thin, if a plurality of sets of escape holes 131 are provided on the first flexible layer 132, the flexibility of the first flexible layer 132 located in the bending area A1 is reduced. And support. Therefore, in the case where the squeezing force and the tensile force are reduced without damaging the substrate structure, the number of sets of the escaping holes 131 of the first flexible layer 132 and the number of sets of the escaping holes 131 of the second flexible layer 133 are set. Most preferred.
  • each set of escape holes 131 is one of a point, a rectangle, a diamond, and a circle, or a combination of any two.
  • the shape of the escape hole 131 may be a line or the like, and the shape of the escape hole 131 is not limited thereto.
  • the first flexible layer 132 is provided with six sets of escape holes 131.
  • Each of the set of escape holes 131 is formed by a plurality of rectangular escape holes 131 arranged side by side.
  • the second flexible layer 133 is provided with five sets of escape holes 131, and each set of escape holes 131 is formed by a plurality of rectangular escape holes 131 arranged side by side.
  • escape holes 131 between adjacent groups of the same flexible layer are arranged in a wrong manner to improve the force balance of the same flexible layer at the time of bending.
  • the bending principle of the substrate structure is: when the OLED panel is bent inward, the second flexible layer 133 is located in the bending zone A1, and the inner ring of the flexible structural layer 13 is subjected to a pressing force, resulting in The aperture of the escape hole 131 disposed on the second flexible layer 133 is reduced to relieve the second flexible layer 133 from being subjected to the pressing force; meanwhile, the first flexible layer 132 is located in the outer ring of the flexible structural layer 13 in the bending area A1.
  • the stretching force and the pressing force cause the diameter of the escape hole 131 provided on the first flexible layer 132 to become large to relieve the tensile force and the pressing force that the first flexible layer 132 is subjected to.
  • FIG. 4 is a cross-sectional structural view showing a second embodiment of the flexible OLED display panel of the present application in a flattened manner
  • FIG. 5 is a second embodiment of the flexible OLED display panel of the present application
  • FIG. 6 is a schematic top plan view of a first flexible layer and a second flexible layer of a second embodiment of the flexible OLED display panel of the present application.
  • the OLED display panel includes a substrate structure and an OLED display module 21, and the substrate mechanism includes a base substrate 22 and a flexible structure layer 23.
  • the flexible layer is provided with two layers, a first flexible layer 232 disposed on the base substrate 22 and a second flexible layer 233 disposed on the first flexible layer 232, respectively.
  • first flexible layer 232 is located in the inner ring of the bending zone A2
  • second flexible layer 233 is located in the outer ring of the bending zone A2.
  • the number of the avoidance holes 231 of the second flexible layer 233 is larger than the number of the avoidance holes 231 of the first flexible layer 232. Such an arrangement not only slows down the pressing force applied to the second flexible layer 233, but also further reduces the tensile force to which the second flexible layer 233 is subjected.
  • the number of the relief holes 231 of the second flexible layer 233 is one more than the number of the relief holes 231 of the first flexible layer 232.
  • each set of escape holes 231 is one of a point, a rectangle, a diamond, and a circle, or a combination of any two.
  • the shape of the escape hole 231 may be a line or the like, and the shape of the escape hole 231 is not limited thereto.
  • the first flexible layer 232 is provided with five sets of escape holes 231.
  • the two sets of escape holes 231 are arranged side by side by a plurality of rectangular avoidance holes 231, and the three sets of escape holes 231 are arranged side by side by a plurality of diamond-shaped escape holes 231, and the rectangular set avoidance holes 231 and the diamond-shaped set avoidance holes 231 are alternately arranged.
  • the second flexible layer 233 is provided with six sets of escape holes 231, wherein the three sets of escape holes 231 are formed by a plurality of rectangular avoidance holes 231 arranged side by side, and the three sets of escape holes 231 are formed by a plurality of diamond-shaped escape holes 231 arranged side by side, and the rectangular group avoids The hole 231 and the diamond group avoidance hole 231 are alternately arranged.
  • escape holes 231 between adjacent groups of the same flexible layer are arranged in a wrong manner to improve the force balance of the same flexible layer at the time of bending.
  • the bending principle of the substrate structure is that when the OLED panel is bent outward (ie, bent toward the bottom substrate 22), the first flexible layer 232 is located in the flexible structural layer in the bending region A2.
  • the inner ring of 23 is subjected to a pressing force, so that the diameter of the escape hole 231 disposed on the first flexible layer 232 becomes smaller to slow the pressing force received by the first flexible layer 232; meanwhile, the second flexible layer 233 is located in the bending area
  • the outer ring of the flexible structural layer 23 in A2 is subjected to a tensile force and a pressing force, so that the diameter of the escape hole 231 disposed on the second flexible layer 233 becomes larger to relieve the tensile force and the compression of the second flexible layer 233. force.
  • FIG. 7 is a cross-sectional structural view showing a third embodiment of the flexible OLED display panel of the present application in a flattened state.
  • the OLED display panel of the third embodiment of the present application includes a substrate structure and an OLED display module 31.
  • the substrate structure includes a base substrate 32 and a flexible structural layer 33 disposed on the base substrate 32.
  • the flexible structural layer 33 comprises at least two flexible layers.
  • the third embodiment is different from the first embodiment in that the flexible layer is provided with three layers, respectively a first flexible layer 332 disposed on the base substrate 32 and a second flexible layer 333 disposed on the first flexible layer 332. And a third flexible layer 334 disposed on the second flexible layer 333;
  • the number of the avoidance holes 331 of the first flexible layer 332 and the number of the avoidance holes 331 of the second flexible layer 333 are equal.
  • the number of the relief holes 331 of the second flexible layer 333 is smaller than the number of the relief holes 331 of the first flexible layer 332.
  • the number of the relief holes 331 of the second flexible layer 333 is one less than the number of the relief holes 331 of the first flexible layer 332.
  • the number of the avoidance holes 331 of the first flexible layer 332 near the bottom substrate 32 and the third flexible layer 334 near the OLED display module 31 is more than the number of the avoidance holes 331 of the second flexible layer 333, so that the OLED display panel Dynamic internal and external bending can be achieved at the same time without damaging the substrate structure.
  • each set of escape holes 331 may have any shape such as a rectangle, a diamond, a circle, a regular polygonal row, a line, and the like.
  • the bending principle of the OLED panel is: when the OLED panel is bent inward, the first flexible layer 332 is located in the outer ring of the bending zone A3 and is subjected to a tensile force and a pressing force, and is disposed in the first flexible layer 332.
  • the hole 331 has a larger aperture to slow the tensile force and the pressing force of the first flexible layer 332; the third flexible layer 334 is located in the inner ring of the bending zone A3 and is subjected to a pressing force, and is disposed in the third flexible layer 334.
  • the aperture 331 has a smaller aperture to reduce the pressing force of the third flexible layer 334; the second flexible layer 333 is located in the middle of the bending zone A3 and is subjected to a pressing force and a tensile force, and is disposed in the second flexible layer 333.
  • the hole 331 has a smaller aperture at one end near the first flexible layer 332, and becomes larger near one end of the third flexible layer 333 to slow the pressing force and tensile force received by the second flexible layer 333.
  • the first flexible layer 332 When the OLED panel is bent outward, the first flexible layer 332 is pressed by the inner ring of the bending zone A3, and the aperture of the avoidance hole 331 disposed in the first flexible layer 332 is reduced to reduce the pressing force;
  • the outer layer of the flexible layer 334 is subjected to a pressing force and a tensile force, and the diameter of the escape hole 331 disposed in the third flexible layer 334 is increased to reduce the pressing force and the tensile force;
  • the second flexible layer 333 The middle ring located in the bending zone A3 is subjected to a pressing force and a tensile force, and the aperture of the relief hole 331 disposed in the second flexible layer 333 becomes larger near the end of the first flexible layer 332, and becomes smaller near the third flexible layer 333. To relieve the pressing force and tensile force that the second flexible layer 333 is subjected to.
  • the present application also provides a flexible OLED display device including the above OLED flexible display panel.
  • the flexible OLED display panel of the flexible OLED display device of the present application is consistent with the structure of the OLED flexible display panel. For details, refer to the content of the flexible OLED display panel of the present application.
  • the flexible OLED display panel of the present application has a flexible structural layer having at least two flexible layers on the base substrate and avoidance holes between adjacent flexible layers, compared to the prior art OLED display panel.
  • the dislocation setting allows the avoidance holes to be supported accordingly to avoid adverse effects.
  • the flexible layer located in the bending zone is subjected to the pressing force, and the aperture of the avoiding hole is reduced to reduce the pressing force, and the flexible layer located in the outer ring of the bending zone is subjected to the tensile force, avoiding The hole diameter becomes larger, and the tensile force is slowed down, thereby avoiding the occurrence of rupture of the OLED panel in the bending zone.
  • the technical problem that the substrate of the existing OLED display panel is easily broken when bent is solved.

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Abstract

一种柔性OLED显示面板和柔性OLED显示装置，其包括底基板（12）和柔性结构层（13），柔性结构层（13）由至少两层柔性层（132，133）叠加设置构成；面板包括一进行弯折的弯折区（A1），柔性层（132，133）包括设置在弯折区（A1）的多组避让孔（131），且相邻柔性层（132，133）的避让孔（131）相错设置。当面板处于弯折状态时，位于弯折区（A1）内圈的避让孔（131）减缓挤压力；位于弯折区（A1）外圈的避让孔（131）减缓拉伸力。

Description

柔性OLED显示面板及柔性OLED显示装置 技术领域
本申请涉及显示技术领域，特别涉及一种柔性OLED显示面板和柔性OLED显示装置。
 背景技术
在显示技术领域，液晶显示面板（Liquid CrystA1l DisplA1y ,LCD）与有机发光二极管显示面板（OrgA1nic Light Emitting Diode ,OLED）等平板显示装置已经逐步取代阴极线管显示器。
其中，OLED显示面板具有自发光、驱动电压低、发光效率高、清晰度和对比度高和可实现柔性显示面与大面积全色显示等诸多优点。
现有的OLED显示面板包括基板、设置在基板上的显示模块，显示模块包括设置在基板上的衬底、设置在衬底上的薄膜晶体管、设置在薄膜晶体管上的图案化的像素定义层和设置在像素定义层内的OLED元件。其中基板通产采用双层聚酰亚胺（Polyimide，PI）膜作为基板，但是在做弯折时PI膜，由于内圈PI膜受挤压力和外圈PI膜受拉伸力可能导致不可逆转的折伤。
故，需要提供一种具有可减缓挤压力和拉伸力的基板结构的柔性OLED显示面板，已解决上述技术问题。
 技术问题
本申请实施例提供一种具有可减缓挤压力和拉伸力的基板结构的柔性OLED显示面板和柔性OLED显示装置；以解决现有的OLED显示面板的基板在做弯折时容易折伤的技术问题。
 技术解决方案
本申请的实施方案提供一种柔性OLED显示面板，其包括一进行弯折的弯折区，所述弯折区设置有基板结构和设置在所述基板结构上的OLED显示模块，其中，所述基板结构包括：
底基板；以及
柔性结构层，设置在所述底基板上，所述柔性结构层由至少两层柔性层叠加设置构成；
其中所述柔性层包括设置在所述弯折区的多组避让孔，且相邻所述柔性层的避让孔相错设置；
当所述OLED显示面板处于弯折状态时，位于所述弯折区内圈的柔性层的避让孔受挤压力孔径变小，以减缓该柔性层受到的挤压力；位于所述弯折区外圈的柔性层的避让孔受拉伸力孔径变大，以减缓该柔性层受到的拉伸力；
每组所述避让孔的形状为点、矩形、菱形和圆形中的一种或任意两种的组合；位于同一柔性层的相邻组之间的所述避让孔相错排布。
在本申请柔性OLED显示面板的第一实施方案中，所述柔性层设置有两层，分别为设置在所述底基板上的第一柔性层和设置在所述第一柔性层上的第二柔性层；当所述柔性OLED显示面板向内弯折时，所述第一柔性层位于所述弯折区的外圈，所述第二柔性层位于所述弯折区的内圈，
其中所述第一柔性层的避让孔组数多于所述第二柔性层的避让孔组数。
在本申请柔性OLED显示面板的第一实施方案中，所述第二柔性层的避让孔组数比所述第一柔性层的避让孔组数多一组。
在本申请柔性OLED显示面板的第二实施方案中，所述柔性层设置有两层，分别为设置在所述底基板上的第一柔性层和设置在所述第一柔性层上的第二柔性层；当所述柔性OLED显示面板向外弯折时，所述第一柔性层位于所述弯折区的内圈，所述第二柔性层位于所述弯折区的外圈，
其中所述第二柔性层的避让孔组数多于所述第一柔性层的避让孔组数。
在本申请柔性OLED显示面板的第三实施方案中，所述柔性层设置有三层，分别为设置在所述底基板上的第一柔性层、设置在所述第一柔性层上的第二柔性层和设置在所述第二柔性层上的第三柔性层；
其中所述第一柔性层的避让孔组数和所述第二柔性层的避让孔组数相等，所述第二柔性层的避让孔组数少于所述第一柔性层的避让孔组数。
在本申请柔性OLED显示面板的第三实施方案中，所述第二柔性层的避让孔组数比所述第一柔性层的避让孔组数少一组。
在本申请柔性OLED显示面板中，所述柔性层为聚酰亚胺层。
本申请提供另一种柔性OLED显示面板，其包括基板结构和设置在所述基板结构上的OLED显示模块，所述基板结构包括：
底基板；以及
柔性结构层，设置在所述底基板上，所述柔性结构层由至少两层柔性层叠加设置构成；
其中，所述OLED显示面板包括一进行弯折的弯折区，所述柔性层包括设置在所述弯折区的多组避让孔，且相邻所述柔性层的避让孔相错设置；
当所述OLED显示面板处于弯折状态时，位于所述弯折区内圈的柔性层的避让孔受挤压力孔径变小，以减缓该柔性层受到的挤压力；位于所述弯折区外圈的柔性层的避让孔受拉伸力孔径变大，以减缓该柔性层受到的拉伸力。
在本申请的另一第一实施方案中，所述柔性层设置有两层，分别为设置在所述底基板上的第一柔性层和设置在所述第一柔性层上的第二柔性层；当所述柔性OLED显示面板向内弯折时，所述第一柔性层位于所述弯折区的外圈，所述第二柔性层位于所述弯折区的内圈，
其中，所述第一柔性层的避让孔组数多于所述第二柔性层的避让孔组数。
在本申请的另一第一实施方案中，所述第二柔性层的避让孔组数比所述第一柔性层的避让孔组数多一组。
本申请的另一第一实施方案中，所述柔性结构层由所述第一柔性层和第二柔性层叠加构成，当OLED显示面板向内弯折时，即OLED显示面板向着OLED显示模块的方向弯折，此时，所述第一柔性层的避让孔和第二柔性层的避让孔相错排布设置，以使所有的避让孔都存在对应的支撑，从而不会对正常的使用产生影响。
另外，在进行内弯折时，第二柔性层受到挤压力，第一柔性层受到挤压力的同时还受到拉伸力，因此为了进一步减缓拉伸力，将所述第一柔性层的避让孔组数多于所述第二柔性层的避让孔组数。
在本申请的另一第二实施方案中，与另一第一实施方案相比的不同之处在于，所述柔性层设置有两层，分别为设置在所述底基板上的第一柔性层和设置在所述第一柔性层上的第二柔性层；当所述柔性OLED显示面板向外弯折时，所述第一柔性层位于所述弯折区的内圈，所述第二柔性层位于所述弯折区的外圈，
其中，所述第二柔性层的避让孔组数多于所述第一柔性层的避让孔组数。
在本申请的另一第二实施方案中，所述第二柔性层的避让孔组数比所述第一柔性层的避让孔组数多一组。
在本申请的另一第三实施方案中，另一第三实施方案和另一第一实施方案的不同之处在于，所述柔性层设置有三层，分别为设置在所述底基板上的第一柔性层、设置在所述第一柔性层上的第二柔性层和设置在所述第二柔性层上的第三柔性层；
其中，所述第一柔性层的避让孔组数和所述第二柔性层的避让孔组数相等，所述第二柔性层的避让孔组数少于所述第一柔性层的避让孔组数。
在本申请的另一第三实施方案中，所述第二柔性层的避让孔组数比所述第一柔性层的避让孔组数少一组。
在另本申请的一第三实施方案中，靠近所述底基板的第一柔性层和靠近OLED显示模块的第三柔性层的避让孔组数均多于第二柔性层的避让孔组数，以使OLED显示面板可以同时实现动态内外弯折，而不折伤基板结构。
另外在另一第一实施方案、另一第二实施方案和另一第三实施方案中，所述柔性层为聚酰亚胺层。
在另一第一实施方案、另一第二实施方案和另一第三实施方案中，每组所述避让孔的形状为点、矩形、菱形和圆形中的一种或任意两种的组合。
在另一第一实施方案、另一第二实施方案和另一第三实施方案中，位于同一柔性层的相邻组之间的所述避让孔相错排布。
本申请还涉及一种柔性OLED显示装置，包括柔性OLED显示面板，所述柔性OLED显示面板包括一进行弯折的弯折区，所述弯折区设置有基板结构和设置在所述基板结构上的OLED显示模块，其中，所述基板结构包括：
底基板；以及
柔性结构层，设置在所述底基板上，所述柔性结构层由至少两层柔性层叠加设置构成；
其中，所述柔性层包括设置在所述弯折区的多组避让孔，且相邻所述柔性层的避让孔相错设置；
当所述OLED显示面板处于弯折状态时，位于所述弯折区内圈的柔性层的避让孔受挤压力孔径变小，以减缓该柔性层受到的挤压力；位于所述弯折区外圈的柔性层的避让孔受拉伸力孔径变大，以减缓该柔性层受到的拉伸力。
在本柔性OLED显示装置的第一实施例中，所述柔性层设置有两层，分别为设置在所述底基板上的第一柔性层和设置在所述第一柔性层上的第二柔性层；当所述柔性OLED显示面板向内弯折时，所述第一柔性层位于所述弯折区的外圈，所述第二柔性层位于所述弯折区的内圈，
在本柔性OLED显示装置的第一实施例中，所述第一柔性层的避让孔组数多于所述第二柔性层的避让孔组数。
在本柔性OLED显示装置的第一实施例中，所述第二柔性层的避让孔组数比所述第一柔性层的避让孔组数多一组。
本柔性OLED显示装置还包括上述柔性OLED显示面板的第二实施方案和第三实施方案，具体参照上述柔性OLED显示面板的结构内容。
 有益效果
相较于现有技术的OLED显示面板，本申请的柔性OLED显示面板和柔性OLED显示装置通过在底基板上设置具有至少两层柔性层的柔性结构层，且相邻柔性层之间的避让孔相错设置，一方面使得避让孔得到相应的支撑，避免产生不良影响；
另一方面，当进行弯折时，位于弯折区内圈的柔性层受到挤压力，避让孔孔径缩小，以减缓挤压力，位于弯折区外圈的柔性层受到拉伸力，避让孔孔径变大，减缓拉伸力，从而避免了OLED面板在进行弯折区出现折伤的情况；解决了现有的OLED显示面板的基板在做弯折时容易折伤的技术问题。
 附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面对实施例中所需要使用的附图作简单的介绍。下面描述中的附图仅为本申请的部分实施例，对于本领域普通技术人员而言，在不付出创造性劳动的前提下，还可以根据这些附图获取其他的附图。
图1为本申请的柔性OLED显示面板的第一实施例处于展平时的剖视结构示意图；
图2为本申请的柔性OLED显示面板的第一实施例处于弯折时的剖视结构示意图；
图3为本申请的柔性OLED显示面板的第一实施例的第一柔性层和第二柔性层的俯视结构示意图；
图4为本申请的柔性OLED显示面板的第二实施例处于展平时的剖视结构示意图；
图5为本申请的柔性OLED显示面板的第二实施例处于弯折时的剖视结构示意图；
图6为本申请的柔性OLED显示面板的第二实施例的第一柔性层和第二柔性层的俯视结构示意图；
图7为本申请的柔性OLED显示面板的第三实施例处于展平时的剖视结构示意图。
 本发明的实施方式
请参照附图中的图式，其中相同的组件符号代表相同的组件。以下的说明是基于所例示的本申请具体实施例，其不应被视为限制本申请未在此详述的其它具体实施例。
请参照图1至图3，图1为本申请的柔性OLED显示面板的第一实施例处于展平时的剖视结构示意图；图2为本申请的柔性OLED显示面板的第一实施例处于弯折时的剖视结构示意图；图3为本申请的柔性OLED显示面板的第一实施例的第一柔性层和第二柔性层的俯视结构示意图。
本申请的第一实施例的一种柔性OLED显示面板，其包括基板结构和设置在基板结构上的OLED显示模块11。基板结构包括底基板12和柔性结构层13。其中OLED显示模块包括设置在基板结构上的衬底、设置在衬底上的薄膜晶体管、设置在薄膜晶体管上的图案化的像素定义层和设置在像素定义层内的OLED元件。
具体的，柔性结构层13设置在底基板12上。柔性结构层13由至少两层柔性层叠加设置构成。
其中，OLED显示面板包括一进行弯折的弯折区A1。柔性层包括设置在弯折区的多组避让孔131，且相邻柔性层13的避让孔131相错设置。
当OLED显示面板处于弯折状态时，位于弯折区A1内圈的柔性层的避让孔131受挤压力孔径变小，以减缓该柔性层受到挤压力；位于弯折区A1外圈的柔性层的避让孔131受拉伸力孔径变大，以减缓该柔性层受到拉伸力。
其中，一方面，柔性结构层中相邻的柔性层之间避让孔的相错排布设置，以使所有的避让孔都存在对应的支撑，从而不会对正常的使用产生影响；另一方面，采用至少两层软性层的设置，增加了柔韧性且保证了一定的支撑力。
另外，在进行内弯折时（即向OLED显示模块的方向弯折），位于弯折区A1内圈的柔性层受到挤压力，使得设置在内圈柔性层上的避让孔131孔径变小，减缓该柔性层受到挤压力；位于弯折区A1外圈的柔性层受到拉伸力，使得设置在外圈柔性层上的避让孔131孔径变大，减缓该柔性层受到拉伸力。综上所述，进而避免了OLED显示面板在进行弯折时，发生折伤的情况。
另外，柔性层为聚酰亚胺层。其中，聚酰亚胺具有优异的机械性能。
具体的，在本申请的第一实施例中，柔性层设置有两层，分别为设置在底基板12上的第一柔性层132和设置在第一柔性层132上的第二柔性层133。当柔性OLED显示面板向内弯折时，第一柔性层132位于弯折区A1的外圈，第二柔性层133位于弯折区A1的内圈。
其中，第一柔性层132的避让孔131组数多于第二柔性层133的避让孔131组数。这样的设置，不但减缓了第一柔性层132受到的挤压力，而且进一步减缓受到的拉伸力。
进一步的，第二柔性层133的避让孔131组数比第一柔性层132的避让孔131组数多一组。
由于，第一柔性层132和第二柔性层133的厚度很薄，如若在第一柔性层132上设置多组的避让孔131，会减低位于弯折区A1的第一柔性层132的柔韧性和支撑力。故在满足减缓挤压力和拉伸力而不折伤基板结构的情况下，第一柔性层132的避让孔131的组数多第二柔性层133的避让孔131的组数一组的设置为最优选。
在本第一实施例中，每组避让孔131的形状为点、矩形、菱形和圆形中的一种或任意两种的组合。避让孔131的形状也可以是线条等，故避让孔131的形状并不限于此。
请参照图3，在本第一实施例中，第一柔性层132设置有六组避让孔131。每组避让孔131由多个矩形避让孔131并排布置形成。第二柔性层133设置有五组避让孔131，每组避让孔131由多个矩形避让孔131并排布置形成。
另外，位于同一柔性层的相邻组之间的避让孔131相错排布，以提高在弯折时同一柔性层的受力均衡性。
本第一实施例进行弯折时，基板结构的弯折原理是：当OLED面板向内弯折，第二柔性层133位于弯折区A1中柔性结构层13的内圈受到挤压力，导致设置在第二柔性层133上的避让孔131孔径变小，以减缓第二柔性层133受到挤压力；同时，第一柔性层132位于弯折区A1中柔性结构层13的外圈受到拉伸力和挤压力，导致设置在第一柔性层132上的避让孔131孔径变大，以减缓第一柔性层132受到的拉伸力和挤压力。
请参照图4-图6，图4为本申请的柔性OLED显示面板的第二实施例处于展平时的剖视结构示意图；图5为本申请的柔性OLED显示面板的第二实施例处于弯折时的剖视结构示意图；图6为本申请的柔性OLED显示面板的第二实施例的第一柔性层和第二柔性层的俯视结构示意图。
在本申请的第二实施例中，OLED显示面板包括基板结构和OLED显示模块21，基板机构包括底基板22和柔性结构层23。
与第一实施方案相比的不同之处在于：柔性层设置有两层，分别为设置在底基板22上的第一柔性层232和设置在第一柔性层232上的第二柔性层233。当柔性OLED显示面板向外弯折时，第一柔性层232位于弯折区A2的内圈，第二柔性层233位于弯折区A2的外圈。
其中，第二柔性层233的避让孔231组数多于第一柔性层232的避让孔231组数。这样的设置，不但减缓了第二柔性层233受到的挤压力，而且进一步减缓第二柔性层233受到的拉伸力。
在第二实施例中，第二柔性层233的避让孔231组数比第一柔性层232的避让孔231组数多一组。
在本第二实施例中，每组避让孔231的形状为点、矩形、菱形和圆形中的一种或任意两种的组合。避让孔231的形状也可以是线条等，故避让孔231的形状并不限于此。
请参照图6，在本第二实施例中，第一柔性层232设置有五组避让孔231。其中两组避让孔231由多个矩形避让孔231并排布置形成，三组避让孔231由多个菱形避让孔231并排布置形成，且矩形组避让孔231和菱形组避让孔231交替设置。第二柔性层233设置有六组避让孔231，其中三组避让孔231由多个矩形避让孔231并排布置形成，三组避让孔231由多个菱形避让孔231并排布置形成，且矩形组避让孔231和菱形组避让孔231交替设置。
另外，位于同一柔性层的相邻组之间的避让孔231相错排布，以提高在弯折时同一柔性层的受力均衡性。
本第二实施例进行弯折时，基板结构的弯折原理是当OLED面板向外弯折（即向底基板22的方向弯折），第一柔性层232位于弯折区A2中柔性结构层23的内圈受到挤压力，导致设置在第一柔性层232上的避让孔231孔径变小，以减缓第一柔性层232受到的挤压力；同时，第二柔性层233位于弯折区A2中柔性结构层23的外圈受到拉伸力和挤压力，导致设置在第二柔性层233上的避让孔231孔径变大，以减缓第二柔性层233受到的拉伸力和挤压力。
请参照图7，图7为本申请的柔性OLED显示面板的第三实施例处于展平时的剖视结构示意图。在本申请的第三实施例的OLED显示面板包括基板结构和OLED显示模块31。基板结构包括底基板32和设置在底基板32上的柔性结构层33。柔性结构层33包括至少两层柔性层。
第三实施方案和第一实施方案的不同之处在于：柔性层设置有三层，分别为设置在底基板32上的第一柔性层332、设置在第一柔性层332上的第二柔性层333和设置在第二柔性层333上的第三柔性层334；
其中，第一柔性层332的避让孔331组数和第二柔性层333的避让孔331组数相等。第二柔性层333的避让孔331组数少于第一柔性层332的避让孔331组数。
在第三实施例中，第二柔性层333的避让孔331组数比第一柔性层332的避让孔331组数少一组。
其中，靠近底基板32的第一柔性层332和靠近OLED显示模块31的第三柔性层334的避让孔331组数均多于第二柔性层333的避让孔331组数，以使OLED显示面板可以同时实现动态内外弯折，而不折伤基板结构。
在第三实施例中，每组避让孔331可以为任意形状，比如矩形、菱形、圆形、正多边行和线条等。
另外，OLED面板的弯折原理是：当OLED面板向内弯折时，第一柔性层332位于弯折区A3的外圈受到拉伸力和挤压力，设置在第一柔性层332的避让孔331孔径变大，以减缓第一柔性层332受到的拉伸力和挤压力；第三柔性层334位于弯折区A3的内圈受到挤压力，设置在第三柔性层334的避让孔331孔径变小，以减缓第三柔性层334受到的挤压力；第二柔性层333位于弯折区A3的中圈受到挤压力和拉伸力，设置在第二柔性层333的避让孔331孔径靠近第一柔性层332的一端变小，靠近第三柔性层333一端变大，以减缓第二柔性层333受到的挤压力和拉伸力。
当OLED面板向外弯折时，第一柔性层332位于弯折区A3的内圈受到挤压力，设置在第一柔性层332的避让孔331孔径变小，以减缓挤压力；第三柔性层334位于弯折区A3的外圈受到挤压力和拉伸力，设置在第三柔性层334的避让孔331孔径变大，以减缓挤压力和拉伸力；第二柔性层333位于弯折区A3的中圈受到挤压力和拉伸力，设置在第二柔性层333的避让孔331孔径靠近第一柔性层332的一端变大，靠近第三柔性层333一端变小，以减缓第二柔性层333受到的挤压力和拉伸力。
另外，本申请还提供了一种包括上述OLED柔性显示面板的柔性OLED显示装置。本申请的柔性OLED显示装置的柔性OLED显示面板与上述OLED柔性显示面板的结构一致，具体请参照上述的本申请的柔性OLED显示面板的内容。
综上所述，相较于现有技术的OLED显示面板，本申请的柔性OLED显示面板通过在底基板上设置具有至少两层柔性层的柔性结构层，且相邻柔性层之间的避让孔相错设置，一方面使得避让孔得到相应的支撑，避免产生不良影响。
另一方面，当进行弯折时，位于弯折区内圈的柔性层受到挤压力，避让孔孔径缩小，以减缓挤压力，位于弯折区外圈的柔性层受到拉伸力，避让孔孔径变大，减缓拉伸力，从而避免了OLED面板在进行弯折区出现折伤的情况。解决了现有的OLED显示面板的基板在做弯折时容易折伤的技术问题。
以上所述，对于本领域的普通技术人员来说，可以根据本申请的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本申请后附的权利要求的保护范围。

Claims (20)

  1. 一种柔性OLED显示面板，其包括一进行弯折的弯折区，所述弯折区设置有基板结构和设置在所述基板结构上的OLED显示模块，其中，所述基板结构包括：
    底基板；以及
    柔性结构层，设置在所述底基板上，所述柔性结构层由至少两层柔性层叠加设置构成；
    其中所述柔性层包括设置在所述弯折区的多组避让孔，且相邻所述柔性层的避让孔相错设置；
    当所述OLED显示面板处于弯折状态时，位于所述弯折区内圈的柔性层的避让孔受挤压力孔径变小，以减缓该柔性层受到的挤压力；位于所述弯折区外圈的柔性层的避让孔受拉伸力孔径变大，以减缓该柔性层受到的拉伸力；
    每组所述避让孔的形状为点、矩形、菱形和圆形中的一种或任意两种的组合；位于同一柔性层的相邻组之间的所述避让孔相错排布。
  2. 根据权利要求1所述的柔性OLED显示面板，其中，所述柔性层设置有两层，分别为设置在所述底基板上的第一柔性层和设置在所述第一柔性层上的第二柔性层；当所述柔性OLED显示面板向内弯折时，所述第一柔性层位于所述弯折区的外圈，所述第二柔性层位于所述弯折区的内圈，
    其中所述第一柔性层的避让孔组数多于所述第二柔性层的避让孔组数。
  3. 根据权利要求2所述的柔性OLED显示面板，其中，所述第二柔性层的避让孔组数比所述第一柔性层的避让孔组数多一组。
  4. 根据权利要求1所述的柔性OLED显示面板，其中，所述柔性层设置有两层，分别为设置在所述底基板上的第一柔性层和设置在所述第一柔性层上的第二柔性层；当所述柔性OLED显示面板向外弯折时，所述第一柔性层位于所述弯折区的内圈，所述第二柔性层位于所述弯折区的外圈，
    其中所述第二柔性层的避让孔组数多于所述第一柔性层的避让孔组数。
  5. 根据权利要求1所述的柔性OLED显示面板，其中，所述柔性层设置有三层，分别为设置在所述底基板上的第一柔性层、设置在所述第一柔性层上的第二柔性层和设置在所述第二柔性层上的第三柔性层；
    其中所述第一柔性层的避让孔组数和所述第二柔性层的避让孔组数相等，所述第二柔性层的避让孔组数少于所述第一柔性层的避让孔组数。
  6. 根据权利要求5所述的柔性OLED显示面板，其中，所述第二柔性层的避让孔组数比所述第一柔性层的避让孔组数少一组。
  7. 根据权利要求1所述的柔性OLED显示面板，其中，所述柔性层为聚酰亚胺层。
  8. 一种柔性OLED显示面板，其包括一进行弯折的弯折区，所述弯折区设置有基板结构和设置在所述基板结构上的OLED显示模块，其中，所述基板结构包括：
    底基板；以及
    柔性结构层，设置在所述底基板上，所述柔性结构层由至少两层柔性层叠加设置构成；
    其中，所述柔性层包括设置在所述弯折区的多组避让孔，且相邻所述柔性层的避让孔相错设置；
    当所述OLED显示面板处于弯折状态时，位于所述弯折区内圈的柔性层的避让孔受挤压力孔径变小，以减缓该柔性层受到的挤压力；位于所述弯折区外圈的柔性层的避让孔受拉伸力孔径变大，以减缓该柔性层受到的拉伸力。
  9. 根据权利要求8所述的柔性OLED显示面板，其中，所述柔性层设置有两层，分别为设置在所述底基板上的第一柔性层和设置在所述第一柔性层上的第二柔性层；当所述柔性OLED显示面板向内弯折时，所述第一柔性层位于所述弯折区的外圈，所述第二柔性层位于所述弯折区的内圈，
    其中所述第一柔性层的避让孔组数多于所述第二柔性层的避让孔组数。
  10. 根据权利要求9所述的柔性OLED显示面板，其中，所述第二柔性层的避让孔组数比所述第一柔性层的避让孔组数多一组。
  11. 根据权利要求8所述的柔性OLED显示面板，其中，所述柔性层设置有两层，分别为设置在所述底基板上的第一柔性层和设置在所述第一柔性层上的第二柔性层；当所述柔性OLED显示面板向外弯折时，所述第一柔性层位于所述弯折区的内圈，所述第二柔性层位于所述弯折区的外圈，
    其中所述第二柔性层的避让孔组数多于所述第一柔性层的避让孔组数。
  12. 根据权利要求8所述的柔性OLED显示面板，其中，所述柔性层设置有三层，分别为设置在所述底基板上的第一柔性层、设置在所述第一柔性层上的第二柔性层和设置在所述第二柔性层上的第三柔性层；
    其中所述第一柔性层的避让孔组数和所述第二柔性层的避让孔组数相等，所述第二柔性层的避让孔组数少于所述第一柔性层的避让孔组数。
  13. 根据权利要求12所述的柔性OLED显示面板，其中，所述第二柔性层的避让孔组数比所述第一柔性层的避让孔组数少一组。
  14. 根据权利要求8所述的柔性OLED显示面板，其中，所述柔性层为聚酰亚胺层。
  15. 根据权利要求8所述的柔性OLED显示面板，其中，每组所述避让孔的形状为点、矩形、菱形和圆形中的一种或任意两种的组合。
  16. 根据权利要求8所述的柔性OLED显示面板，其中，位于同一柔性层的相邻组之间的所述避让孔相错排布。
  17. 一种柔性OLED显示装置，包括柔性OLED显示面板，所述柔性OLED显示面板包括一进行弯折的弯折区，所述弯折区设置有基板结构和设置在所述基板结构上的OLED显示模块，其中，所述基板结构包括：
    底基板；以及
    柔性结构层，设置在所述底基板上，所述柔性结构层由至少两层柔性层叠加设置构成；
    其中，所述柔性层包括设置在所述弯折区的多组避让孔，且相邻所述柔性层的避让孔相错设置；
    当所述OLED显示面板处于弯折状态时，位于所述弯折区内圈的柔性层的避让孔受挤压力孔径变小，以减缓该柔性层受到的挤压力；位于所述弯折区外圈的柔性层的避让孔受拉伸力孔径变大，以减缓该柔性层受到的拉伸力。
  18. 根据权利要求17所述的柔性OLED显示装置，其中，所述柔性层设置有两层，分别为设置在所述底基板上的第一柔性层和设置在所述第一柔性层上的第二柔性层；当所述柔性OLED显示面板向内弯折时，所述第一柔性层位于所述弯折区的外圈，所述第二柔性层位于所述弯折区的内圈，
    其中所述第一柔性层的避让孔组数多于所述第二柔性层的避让孔组数。
  19. 根据权利要求18所述的柔性OLED显示装置，其中，所述第二柔性层的避让孔组数比所述第一柔性层的避让孔组数多一组。
  20. 根据权利要求17所述的柔性OLED显示装置，其中，所述柔性层设置有两层，分别为设置在所述底基板上的第一柔性层和设置在所述第一柔性层上的第二柔性层；当所述柔性OLED显示面板向外弯折时，所述第一柔性层位于所述弯折区的内圈，所述第二柔性层位于所述弯折区的外圈；
    其中所述第二柔性层的避让孔组数多于所述第一柔性层的避让孔组数。
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