WO2019104865A1 - 柔性显示面板及柔性显示器 - Google Patents

柔性显示面板及柔性显示器 Download PDF

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Publication number
WO2019104865A1
WO2019104865A1 PCT/CN2018/074834 CN2018074834W WO2019104865A1 WO 2019104865 A1 WO2019104865 A1 WO 2019104865A1 CN 2018074834 W CN2018074834 W CN 2018074834W WO 2019104865 A1 WO2019104865 A1 WO 2019104865A1
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Prior art keywords
flexible
flexible display
area
display panel
layer
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PCT/CN2018/074834
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English (en)
French (fr)
Inventor
李双
李鹏
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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 US15/961,519 priority Critical patent/US11031573B2/en
Publication of WO2019104865A1 publication Critical patent/WO2019104865A1/zh

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    • 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
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
    • H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
    • H01L23/3157—Partial encapsulation or coating

Definitions

  • the present invention relates to the field of flexible display technologies, and in particular, to a flexible display panel and a flexible display.
  • the display area of the flexible display panel is generally packaged using a package layer (TFE,) to prevent the intrusion of water and oxygen and cause failure of the display device.
  • TFE package layer
  • the encapsulation layer needs to completely cover the display area and the size exceeds the boundary of the display area to better protect the display device function.
  • the encapsulation layer generally includes an inorganic film layer to achieve better prevention of water and oxygen intrusion.
  • One side of the display area is usually provided with a bending area to flex the flexible display panel.
  • the edge of the encapsulation layer adjacent to the bending region may also be subjected to a certain bending stress, since the inorganic film layer is generally hard. Thereby, the risk of warping is easily generated at the edge of the encapsulation layer. If the encapsulation layer has a phenomenon of warping, it provides a convenient path for water and oxygen intrusion, reducing the reliability of the flexible display panel.
  • the invention provides a flexible display panel and a flexible display, which reduces the phenomenon of the edge of the package layer of the flexible display panel and increases the reliability of the flexible display panel.
  • the flexible display panel includes a display area and a bending area on a side of the display area, the display area is covered with an encapsulation layer, and an edge of the encapsulation layer adjacent to the bending area is located in the bending area Between the display areas, a plurality of notches are disposed on the edge of the encapsulation layer adjacent to the bending area.
  • the encapsulation layer comprises an inorganic layer and an organic layer which are arranged in a staggered manner, and the material of the organic layer is organically flexible.
  • the notch is filled with a flexible material to form a layer of flexible material.
  • the material of the flexible material layer is polyimide resin or polyterephthalic plastic.
  • a protrusion is formed between the two adjacent notches, and the thickness of the protrusion gradually decreases from the display area to the bending area.
  • the surface of the protrusion facing away from the flexible substrate is a smooth plane or a smooth curved surface.
  • the shape of the notch of the flexible display panel is a circular arc shape, a square shape, a trapezoidal shape or a triangular shape.
  • the area of the encapsulation layer is larger than the area of the display area, and the boundary of the encapsulation layer is beyond the boundary of the display area.
  • the display area is provided with an array of thin film transistors and an organic light emitting element that is in one-to-one correspondence with the thin film transistors arranged in the array and electrically connected.
  • the flexible display includes the flexible display panel.
  • the flexible display panel is provided with a plurality of the notches at intervals along an edge of the encapsulation layer, so that the flexible display panel is bent in the bending region.
  • the gap Through the gap, the bending stress of the edge of the encapsulation layer can be dispersed, thereby avoiding the problem that the edge of the encapsulation layer may be curled by bending stress, and the reliability of the flexible display panel is increased.
  • FIG. 1 is a schematic structural view of the flexible display panel according to an embodiment of the present invention.
  • Figure 2 is a schematic cross-sectional view of the flexible display panel of the embodiment of Figure 1;
  • FIG. 3 is a schematic structural view of the flexible display panel according to another embodiment of the present invention.
  • FIG. 4 is a schematic cross-sectional view of the flexible display panel according to another embodiment of the present invention.
  • the present invention provides a flexible display panel 100.
  • the flexible display panel 100 includes a flexible substrate 10, and a device layer 20 laminated on the flexible substrate 10.
  • the flexible substrate 10 is made of a PI (polyimide) material.
  • the flexible display panel 100 includes a display area S1 and a non-display area surrounding the display area S1.
  • the non-display area is provided with a bending area S2, and the bending area S2 is disposed at one side of the display S1.
  • the display area S1 is used to display the display of the screen, and the non-display area is used for the routing of the flexible display panel 100 or the like.
  • the flexible display panel 100 is bent at the bending region S2.
  • An encapsulation layer 30 is disposed on the device layer 20.
  • the encapsulation layer 30 covers the display area S1 and is spaced apart from the bending area S2.
  • the encapsulation layer 30 prevents water oxygen or the like from intruding into the display region S1, thereby ensuring the display effect of the organic light-emitting element in the display region S1.
  • the flexible display panel 100 can be easily bent at the position of the bending region S2 to ensure that the flexible display panel 100 has Better bending performance.
  • the flexible substrate 10 is provided with a device layer 20, and the flexible display panel 100 is displayed on the screen through a portion of the display region S1 of the device layer 20.
  • the flexible display panel is an AMOLED display panel.
  • the display area S1 of the device layer 20 includes a plurality of thin film transistors arranged in an array, organic light emitting elements that are in one-to-one correspondence with and electrically connected to the plurality of thin film transistors 21 disposed in the array, and the respective thin film transistors 21 Electrically connected signal line 26. Further, since the non-display area is not used for screen display, the non-display area does not include the thin film transistor 21 and the organic light emitting element.
  • the organic light emitting element includes an opposite first electrode 22 and a second electrode 23, and an organic light emitting layer 24 disposed between the first electrode 22 and the second electrode 23.
  • the first electrode 22 is electrically connected to the thin film transistor 21, and the light-emitting of the organic light-emitting element corresponding thereto is controlled by opening and closing of the thin film transistor 21 to perform different screen display.
  • the device layer 20 further includes a first organic photoresist layer 27 and a second organic photoresist layer 28 which are sequentially stacked on the thin film transistor 21.
  • the first organic photoresist layer 27 is stacked on the thin film transistor 21, and the first electrode 22 is laminated on the first organic photoresist layer 27 and passes through the via hole and the thin film transistor 21.
  • the second organic photoresist layer 28 is laminated on the first electrode 22.
  • the second organic photoresist layer 28 is provided with an opening, the organic light emitting layer 24 is deposited in the opening and connected to the first electrode 22; and the second electrode 23 is stacked on the second
  • the organic photoresist layer 28 is connected to the organic light-emitting layer 24.
  • the flexible display panel is also another type of display panel, such as a PMOLED display panel.
  • the location of the bend region S2 at which the device layer 20 is located includes a layer of flexible material 25.
  • the flexible material layer 25 is located in the same layer as the thin film transistor 21, and the first organic photoresist layer 27 and the second organic photoresist layer 28 are stacked on the flexible material layer 25.
  • the flexible material layer 25 is a high molecular organic material having a relatively high modulus of elasticity, such as a polyethylene terephthalate plastic (PET), a polyimide resin (PI) material, or the like.
  • PET polyethylene terephthalate plastic
  • PI polyimide resin
  • the signal line 26 electrically connected to each of the thin film transistors 21 is fanned out from the display area S1 and electrically connected to a driving chip 50.
  • the signal line 26 is located in the same layer as the thin film transistor 21 and is formed simultaneously with the thin film transistor 21.
  • the driving chip 50 is located on a side of the bending area S2 that faces away from the display area S1.
  • the signal line 26 is electrically connected to the driving chip 50 across the bending region S2.
  • the driving signal of the driving chip 50 is transmitted to the position of the thin film transistor of the display area through the signal line 26, thereby controlling the flexible display panel 100 to perform different screen display.
  • the driving chip 50 may not be disposed on the flexible display panel 100, and may be disposed on a flexible circuit board by a COF process.
  • the encapsulation layer 30 is laminated on the device layer 20, and the encapsulation layer 30 covers the display area S1, and the encapsulation layer 30 prevents water oxygen or the like from intruding into the device layer 20 of the display area S1, thereby The display effect of the organic light emitting element in the display area S1 is ensured.
  • An edge of the encapsulation layer 30 adjacent to the bending region S2 is located between the bending region S2 and the display region S1. In other words, the area of the encapsulation layer 30 is larger than the area of the display area S1. When the encapsulation layer 30 covers the display area S1, the boundary of the encapsulation layer 30 exceeds the display area S1.
  • the encapsulation layer 30 When the encapsulation layer 30 is laminated on the device layer 20 and covers the display region S1, the boundary of the encapsulation layer 30 may slightly exceed the display region S1, thereby achieving better water prevention. The risk of oxygen invading the display zone S1.
  • the encapsulation layer 30 includes an organic layer and an inorganic layer which are alternately arranged in a stack. The number of layers of the organic layer and the inorganic layer may be changed according to actual needs.
  • the inorganic layer is formed by vapor deposition or the like of an inorganic material such as SiO x or SiN x , and has a low water-oxygen permeability, and the risk of intrusion of the water oxygen can be well prevented.
  • the organic layer may be formed by vapor deposition, spin coating or the like of a polymer material having a relatively high modulus of elasticity such as PI or PET, and has good bending properties, thereby ensuring better prevention of the organic layer.
  • the flexible display panel 100 Under the effect of water oxygen intrusion, the flexible display panel 100 has a good bending effect, so that a better curved surface display effect can be obtained.
  • the edge of the encapsulation layer 30 is spaced apart from the bending zone S2, that is, the edge of the encapsulation layer 30 is spaced between the bending zone S2, thereby preventing the encapsulation layer 30 from extending to the bending zone. S2, which affects the bending performance of the bending zone S2.
  • An edge of the encapsulation layer 30 adjacent to the bending portion S2 is formed with a plurality of notches 31 at a patterning interval, and a protrusion 32 is formed between the two adjacent notches 31, that is, the encapsulation layer 30
  • the edge near the bending zone S2 is a curve having a concave-convex structure.
  • the notch 31 does not extend into the display area S1, and prevents external water oxygen or the like from entering the display area S1 through the notch 31.
  • the gap 31 can be dispersed.
  • the edge of the encapsulation layer 30 is subjected to bending stress, thereby avoiding the problem that the edge of the encapsulation layer 30 may be subjected to bending stress and curling, thereby increasing the reliability of the flexible display panel 100.
  • the notch 31 may have any shape.
  • the shape of the notch 31 may be a circular arc shape, a square shape, a trapezoidal shape or a triangular shape.
  • the notch 31 may be a circular arc shape, and the notch 31 of the circular arc shape has no corners, so that stress does not cause stress concentration at the position of the corner, thereby avoiding possible cracking of the encapsulation layer 30. And other issues.
  • a layer of flexible material 33 is deposited in the gap 31.
  • the flexible material layer 33 is a material having a relatively high modulus of elasticity, such as a polymer material such as polyethylene terephthalate (PET) or polyimide resin (PI).
  • PET polyethylene terephthalate
  • PI polyimide resin
  • the material of the flexible material layer 33 is the same as the material of the organic layer of the encapsulation layer 30, so that when the flexible material layer 33 is located in the notch 31, the encapsulation layer 30 can be The combination is closer.
  • the flexible material layer 33 in the notch 31 it is possible to achieve the bending stress that is applied to the edge of the encapsulation layer 30, prevent the edge of the encapsulation layer 30 from curling, and enhance the
  • the bending property of the edge of the encapsulation layer 30 further avoids the problem that the edge of the encapsulation layer 30 may be subjected to bending stress to cause curling, and can prevent cracking of the protrusion 32 during the bending process. problem.
  • the protrusion 32 is in the direction from the display area S1 to the bending area S2.
  • the thickness of the protrusion 32 is away from the plane of the flexible substrate 10 at an angle from the plane of the flexible substrate 10, thereby further enhancing the edge of the encapsulation layer 30 near the bending area S2.
  • the bending property further avoids warpage of the encapsulation layer 30 near the edge of the bending zone S2.
  • the surface 321 is a smooth surface, that is, the surface 321 does not have a corner to ensure that the stress is not at the corner when the encapsulation layer 30 is bent near the edge of the bending portion S2. The position is concentrated, resulting in problems such as cracks in the encapsulation layer 30 near the edge of the bending region S2.
  • the surface 321 may be a smooth plane or a smooth curved surface.
  • the flexible display panel 100 provided by the present invention is provided with a plurality of the notches 31 at intervals along the edge of the bending layer S2, so that the flexible display panel 100 is bent at the edge.
  • the bending stress of the edge of the encapsulating layer 30 can be dispersed by the notch 31, thereby avoiding the problem that the edge of the encapsulating layer 30 may be subjected to bending stress and curling.
  • the reliability of the flexible display panel 100 is described.
  • the present invention also provides a flexible display, which may be various flexible display products such as a flexible mobile phone, an electronic newspaper, a flexible display screen, and the like.
  • the flexible display includes the flexible display panel 100 to ensure that the flexible display has better quality.

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Abstract

提供一种柔性显示面板(100)及柔性显示器，通过将柔性显示面板的封装层(30)靠近柔性显示面板的弯折区(S2)的边缘间隔设置有多个缺口(31)，使得柔性显示面板在弯折区进行弯折时，通过缺口能够分散封装层的边缘受到的弯折应力，从而避免封装层的边缘可能受到弯折应力而发生卷翘的问题，增加柔性显示面板的可靠性。

Description

柔性显示面板及柔性显示器 技术领域
本发明涉及柔性显示技术领域，尤其涉及一种柔性显示面板及柔性显示器。
背景技术
一般柔性显示面板的显示区域一般会使用封装层(TFE，)进行封装，从而防止水氧入侵而引起显示器件的失效。通常所述封装层需要全面覆盖显示区域且大小会超出显示区边界，以更好的保护显示器件功能。且所述封装层一般包括有无机膜层，以实现更好的防止水氧入侵的效果。所述显示区的一侧通常会设有弯折区，从而柔性显示面板的弯折。当所述柔性显示面板在所述弯折区进行弯折时，靠近所述弯折区的所述封装层的边缘也可能会受到一定的弯折应力的作用，由于无机膜层一般较硬，从而在所述封装层的边缘容易产生翘边风险。如果所述封装层出现翘边的现象，那么就为水氧入侵提供便利路径，降低所述柔性显示面板的可靠性。
发明内容
本发明提供一种柔性显示面板及柔性显示器，减少所述柔性显示面板的封装层的翘边现象，增加所述柔性显示面板的可靠性。
所述柔性显示面板包括显示区及位于所述显示区一侧的弯折区，所述显示区上覆盖有封装层，所述封装层靠近所述弯折区的边缘位于所述弯折区与所述显示区之间；所述封装层上靠近所述弯折区的边缘间隔设置有多个缺口。
其中，所述封装层包括层叠交错设置的无机层和有机层，所述有机层的材料为有机柔性。
其中，所述缺口内填充有柔性材料形成柔性材料层。
其中，所述柔性材料层的材料为聚酰亚胺树脂或者聚对苯二甲酸类塑料。
其中，相邻的两个所述缺口之间形成有一凸起，所述凸起从所述显示区至所述弯折区的方向上的厚度逐渐减小。
其中，所述凸起背离所述柔性基板的表面为光滑平面或者光滑的弧面。
其中，所述柔性显示面板的所述缺口的形状为圆弧形、方形、梯形或者三角形。
其中，所述封装层的面积大于所述显示区的面积，所述封装层的边界超出于所述显示区的边界。
其中，所述显示区设有阵列排布的薄膜晶体管及与阵列排布的所述薄膜晶体管一一对应并电连接的有机发光元件。
所述柔性显示器包括所述柔性显示面板。
本发明提供的所述柔性显示面板，通过将所述封装层靠近所述弯折区的边缘间隔设置有多个所述缺口，从而使得所述柔性显示面板在所述弯折区进行弯折时，通过所述缺口能够分散所述封装层的边缘受到的弯折应力，从而避免所述封装层的边缘可能受到弯折应力而发生卷翘的问题，增加所述柔性显示面板的可靠性。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例的所述柔性显示面板的结构示意图；
图2是图1所述实施例的所述柔性显示面板的截面示意图；
图3是本发明另一实施例的所述柔性显示面板的结构示意图；
图4是本发明另一实施例的所述柔性显示面板的截面示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1及图2，本发明提供一种柔性显示面板100。所述柔性显示面板100包括柔性基板10，层叠于所述柔性基板10上的器件层20。本实施例中，所述柔性基板10为PI(polyimide，聚酰亚胺树脂)材料制成。所述柔性显示面板100包括显示区S1及包围所述显示区S1的非显示区。所述非显示区内设有弯折区S2，且所述弯折区S2设于所述显示器S1的一侧。所述显示区S1用于显示画面的显示，所述非显示区用于所述柔性显示面板100的走线等。所述柔性显示面板100在所述弯折区S2进行弯折。所述器件层20上设有封装层30。所述封装层30覆盖所述显示区S1，并与所述弯折区S2间隔。通过所述封装层30防止水氧等侵入所述显示区S1内，从而保证所述显示区S1内的有机发光元件的显示效果。同时，通过将所述封装层30与所述弯折区S2间隔，从而使得所述柔性显示面板100能够在所述弯折区S2的位置容易的进行弯曲，以保证所述柔性显示面板100具有较好的弯折性能。
所述柔性基板10上设有器件层20，通过所述器件层20的所述显示区S1的部分实现所述柔性显示面板100进行画面显示。本实施例中，所述柔性显示面板为AMOLED显示面板。所述器件层20的所述显示区S1包括阵列设置的多个薄膜晶体管，与阵列设置的多个所述薄膜晶体管21一一对应并电连接的有机发光元件，及与各个所述薄膜晶体管21电连接的信号线26。进一步的，由于所述非显示区不用于进行画面显示，因此所述非显示区不包括所述薄膜晶体管21及有机发光元件。所述有机发光元件包括相对的第一电极22及第二电极23，以及设于所述第一电极22与所述第二电极23之间的有机发光层24。所述第一电极22与所述薄膜晶体管21电连接，通过所述薄膜晶体管21的开闭控制与其对应的所述有机发光元件的发光，从而进行不同的画面显示。具体的，本实施例中，所述器件层20还包括依次层叠于所述薄膜晶体管21上的第一有机光阻层27及第二有机光阻层28。具体的，所述第一有机光阻层27层叠于所述薄膜晶体管21上，所述第一电极22层叠于所述第一有机光阻层27上，并通过过孔与所述薄膜晶体管21电连接。所述第二有机光阻层28层叠于所述第一电极22上。所述第二有机光阻层28上设有一开孔，所述有机发光层24沉积于所述开孔内并与所述第一电极22连接；所述第二电极23层叠于所述第二有机光阻层28上并与有机发光层24连接。可以理解的是，所述柔性显 示面板也其他类型的显示面板，如也可以为PMOLED显示面板。
所述器件层20位于的所述弯折区S2的位置包括有柔性材料层25。所述柔性材料层25与所述薄膜晶体管21位于同一层，且所述第一有机光阻层27及所述第二有机光阻层28层叠于所述柔性材料层25的上。所述柔性材料层25为具有较高弹性模量的高分子有机材料，如聚对苯二甲酸类塑料(PET)、聚酰亚胺树脂(PI)材料等。通过在所述弯折区S2设置所述柔性材料层25，使得在所述弯折区S2相较于所述显示区S1来说具有更好的弯折性能。使得所述柔性显示面板100在所述弯折区S2能够实现更好的弯折。
与各个所述薄膜晶体管21电连接的所述信号线26从所述显示区S1扇出，并与一驱动芯片50电连接。所述信号线26与所述薄膜晶体管21位于同一层并与所述薄膜晶体管21同时形成。本实施例中，所述驱动芯片50位于所述弯折区S2背离所述显示区S1的一侧。所述信号线26跨过所述弯折区S2与所述驱动芯片50电连接。通过所述信号线26将所述驱动芯片50的驱动信号传输至所述显示区的所述薄膜晶体管的位置，进而控制所述柔性显示面板100进行不同的画面显示。可以理解的是，在本发明的其它实施例中，所述驱动芯片50可以不设于所述柔性显示面板100上，可以通过COF工艺设于一柔性电路板上。
所述封装层30层叠于所述器件层20上，且所述封装层30覆盖所述显示区S1，通过所述封装层30防止水氧等侵入所述显示区S1的器件层20内，从而保证所述显示区S1内的有机发光元件的显示效果。所述封装层30靠近所述弯折区S2的边缘位于所述弯折区S2与所述显示区S1之间。换句话说，所述封装层30的面积大于所述显示区S1的面积，所述封装层30覆盖于所述显示区S1上时，所述封装层30的边界超出于所述显示区S1的边界，，从而使得所述封装层30层叠于所述器件层20上并覆盖所述显示区S1时，所述封装层30的边界会略超出所述显示区S1，从而实现更好的防止水氧侵入所述显示区S1的风险。本发明中，所述封装层30包括层叠交错设置的有机层及无机层。所述有机层及所述无机层的层数根据实际需要可以进行变化。其中，所述无机层为SiO x、SiN x等无机材料通过气相沉积等方式形成，具有较低的水氧渗透率，能够很好的防止所述水氧侵入的风险。所述有机层可以为PI或PET等具有较 高弹性模量的高分子材料通过气相沉积、旋涂等方式形成，具有较好的弯折性能，从而保证了所述有机层具有较好的防止水氧侵入的效果下，实现所述柔性显示面板100具有较好的弯曲效果，从而能够得到较好的曲面显示效果。所述封装层30的边缘与所述弯折区S2间隔，即所述封装层30的边缘于所述弯折区S2之间有间隔，从而防止所述封装层30延伸至所述弯折区S2，而影响所述弯折区S2的弯折性能。
所述封装层30的靠近所述弯折区S2的边缘同图案化形成间隔设置有多个缺口31，相邻的两个所述缺口31之间形成有一凸起32，即所述封装层30靠近所述弯折区S2的边缘为具有凹凸结构的曲线。所述缺口31与所述显示区S1之间有间距，即所述缺口31最靠近所述显示区S1的位置与所述显示区S1靠近所述缺口31一侧的边缘之间有一定的距离，所述缺口31不会延伸至所述显示区S1内，防止外界的水氧等通过所述缺口31进入所述显示区S1内。通过将所述封装层30靠近所述弯折区S2的边缘间隔设置多个缺口31，从而使得所述柔性显示面板100的所述弯折区S2进行弯折时，通过所述缺口31能够分散所述封装层30的边缘受到的弯折应力，从而避免所述封装层30的边缘可能受到弯折应力而发生卷翘的问题，增加所述柔性显示面板100的可靠性。本发明中，所述缺口31可以为任意形状，例如所述缺口31的形状可以为圆弧形、方形、梯形或者三角形。本实施例中，所述缺口31可以为圆弧形，圆弧形的所述缺口31不存在拐角，使得应力不会在拐角的位置产生应力集中，从而避免所述封装层30可能产生的开裂等问题。
请参阅图3，在本发明的另一实施例中，所述缺口31内沉积有柔性材料层33。所述柔性材料层33为具有较高弹性模量的材料，如聚对苯二甲酸类塑料(PET)、聚酰亚胺树脂(PI)等高分子材料。本实施例中，所述柔性材料层33的材料与所述封装层30的有机层的材料相同，使得所述柔性材料层33的位于所述缺口31中时，能够与所述封装层30的结合更紧密。并且，通过在所述缺口31内设置所述柔性材料层33，能够在实现分散所述封装层30的边缘受到的弯折应力，防止所述封装层30的边缘卷翘的同时，增强所述封装层30的边缘的弯折性能，进一步的避免所述封装层30的边缘可能受到弯折应力而发生卷翘的问题，并能防止所述凸起32在弯折过程中可能产生的开裂等问 题。
进一步的，请参阅图4，本发明的另一实施例中，其与图3所述实施例的差别在于，所述凸起32在所述显示区S1至所述弯折区S2的方向上的厚度逐渐减小，即所述凸起32背离所述柔性基板10的表面321与所述柔性基板10的平面呈夹角，从而进一步增强所述封装层30靠近所述弯折区S2的边缘的弯折性能，从而进一步避免所述封装层30靠近所述弯折区S2的边缘的翘曲。本实施例中，所述表面321为光滑面，即所述表面321不存在拐角，以保证所述封装层30靠近所述弯折区S2的边缘进行弯折时，应力不会在所述拐角的位置集中，从而导致封装层30靠近所述弯折区S2的边缘出现裂痕等问题。其中，所述表面321可以为光滑的平面或者光滑的弧面。
本发明提供的所述柔性显示面板100，通过将所述封装层30靠近所述弯折区S2的边缘间隔设置有多个所述缺口31，从而使得所述柔性显示面板100在所述弯折区S2进行弯折时，通过所述缺口31能够分散所述封装层30的边缘受到的弯折应力，从而避免所述封装层30的边缘可能受到弯折应力而发生卷翘的问题，增加所述柔性显示面板100的可靠性。
本发明还提供一种柔性显示器，所述柔性显示器可以为柔性手机、电子报纸、柔性展示屏等各种柔性显示产品。所述柔性显示器包括所述柔性显示面板100，从而保证所述柔性显示器具有较好的品质。
以上所揭露的仅为本发明一种较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (18)

  1. 一种柔性显示面板，其中，包括显示区及位于所述显示区一侧的弯折区，所述显示区上覆盖有封装层，所述封装层靠近所述弯折区的边缘位于所述弯折区与所述显示区之间；所述封装层上靠近所述弯折区的边缘间隔设置有多个缺口。
  2. 如权利要求1所述的柔性显示面板，其中，所述封装层包括层叠交错设置的无机层和有机层，所述有机层的材料为有机柔性。
  3. 如权利要求2所述的柔性显示面板，其中，所述缺口内填充有柔性材料形成柔性材料层。
  4. 如权利要求3所述的柔性显示面板，其中，所述柔性材料层的材料为聚酰亚胺树脂或者聚对苯二甲酸类塑料。
  5. 如权利要求1所述的柔性显示面板，其中，相邻的两个所述缺口之间形成有一凸起，所述凸起从所述显示区至所述弯折区的方向上的厚度逐渐减小。
  6. 如权利要求5所述的柔性显示面板，其中，所述凸起背离所述柔性基板的表面为光滑平面或者光滑的弧面。
  7. 如权利要求1所述的柔性显示面板，其中，所述柔性显示面板的所述缺口的形状为圆弧形、方形、梯形或者三角形。
  8. 如权利要求1所述的柔性显示面板，其中，所述封装层的面积大于所述显示区的面积，所述封装层的边界超出于所述显示区的边界。
  9. 如权利要求1所述的柔性显示面板，其中，所述显示区设有阵列排布的薄膜晶体管及与阵列排布的所述薄膜晶体管一一对应并电连接的有机发光元件。
  10. 一种柔性显示器，其中，包括柔性显示面板，所述柔性显示面板包括显示区及位于所述显示区一侧的弯折区，所述显示区上覆盖有封装层，所述封装层靠近所述弯折区的边缘位于所述弯折区与所述显示区之间；所述封装层上靠近所述弯折区的边缘间隔设置有多个缺口。
  11. 如权利要求10所述的柔性显示器，其中，所述封装层包括层叠交错 设置的无机层和有机层，所述有机层的材料为有机柔性。
  12. 如权利要求11所述的柔性显示器，其中，所述缺口内填充有柔性材料形成柔性材料层。
  13. 如权利要求12所述的柔性显示器，其中，所述柔性材料层的材料为聚酰亚胺树脂或者聚对苯二甲酸类塑料。
  14. 如权利要求10所述的柔性显示器，其中，相邻的两个所述缺口之间形成有一凸起，所述凸起从所述显示区至所述弯折区的方向上的厚度逐渐减小。
  15. 如权利要求14所述的柔性显示器，其中，所述凸起背离所述柔性基板的表面为光滑平面或者光滑的弧面。
  16. 如权利要求10所述的柔性显示器，其中，所述柔性显示面板的所述缺口的形状为圆弧形、方形、梯形或者三角形。
  17. 如权利要求10所述的柔性显示器，其中，所述封装层的面积大于所述显示区的面积，所述封装层的边界超出于所述显示区的边界。
  18. 如权利要求10所述的柔性显示器，其中，所述显示区设有阵列排布的薄膜晶体管及与阵列排布的所述薄膜晶体管一一对应并电连接的有机发光元件。
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