WO2020252944A1 - 发光面板及显示装置 - Google Patents

发光面板及显示装置 Download PDF

Info

Publication number
WO2020252944A1
WO2020252944A1 PCT/CN2019/105154 CN2019105154W WO2020252944A1 WO 2020252944 A1 WO2020252944 A1 WO 2020252944A1 CN 2019105154 W CN2019105154 W CN 2019105154W WO 2020252944 A1 WO2020252944 A1 WO 2020252944A1
Authority
WO
WIPO (PCT)
Prior art keywords
emitting panel
substrate
light
blocking
crack
Prior art date
Application number
PCT/CN2019/105154
Other languages
English (en)
French (fr)
Inventor
李雄
李顺英
Original Assignee
武汉华星光电半导体显示技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 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 US16/614,056 priority Critical patent/US20210343983A1/en
Publication of WO2020252944A1 publication Critical patent/WO2020252944A1/zh

Links

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
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements
    • H10K59/8723—Vertical spacers, e.g. arranged between the sealing arrangement and the OLED
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/844—Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/873—Encapsulations
    • H10K59/8731—Encapsulations multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
    • 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

Definitions

  • This application relates to the field of display technology, in particular to a light-emitting panel and a display device.
  • one of the ways to increase the screen-to-body ratio is to design a narrower border, and one of the factors limiting the Border is that there is a mask shadow when the light-emitting panel is packaged. When the panel is cut, the crack generated will be along the Mask Shadow extends to the display area, causing the encapsulation layer to fail and affecting the quality of the light-emitting panel
  • the embodiments of the present application provide a light-emitting panel and a display device, which can prevent cracks generated by cutting the light-emitting panel from extending to the display area, and improve the yield of the light-emitting panel.
  • an embodiment of the present application provides a light emitting panel, including:
  • the crack blocking structure includes a blocking portion and an extension portion, the blocking portion is disposed on at least one end of the insulating layer, and the extension portion extends to the substrate;
  • At least one groove is provided on the blocking portion.
  • the groove includes an opening and an inner cavity extending from the opening to the inside of the blocking portion.
  • the bottom of the inner cavity has at least one included angle, and the angle of the included angle is 60° to 120°.
  • a concave-convex structure is provided on the side wall of the inner cavity, and the cross-sectional shape of the concave-convex structure is wavy or sawtooth.
  • the horizontal opening length of the opening portion is greater than 5 microns.
  • the thickness of the encapsulation layer provided on the extension portion is greater than the thickness of the encapsulation layer provided on the sidewall of the groove.
  • the cross-sectional shape of the groove is any one of a square, a triangle, and a trapezoid.
  • a plurality of grooves are provided on the blocking portion, and the plurality of grooves are arranged on the blocking portion at intervals.
  • a retaining wall structure is further provided on the insulating layer, the retaining wall structure is close to the crack blocking structure, and the packaging layer covers the retaining wall structure.
  • an embodiment of the present application further provides a display device, including: a housing and a light-emitting panel, the light-emitting panel is disposed on the housing, and the light-emitting panel includes:
  • the crack blocking structure includes a blocking portion and an extension portion, the blocking portion is disposed on at least one end of the insulating layer, and the extension portion extends to the substrate;
  • At least one groove is provided on the blocking portion.
  • the groove includes an opening portion and an inner cavity extending from the opening portion to the inside of the blocking portion.
  • the bottom of the inner cavity has at least one included angle, and the angle of the included angle is 60° to 120°.
  • a concave-convex structure is provided on the side wall of the inner cavity, and the cross-sectional shape of the concave-convex structure is wavy or sawtooth.
  • the horizontal opening length of the opening portion is greater than 5 microns.
  • the thickness of the encapsulation layer provided on the extension portion is greater than the thickness of the encapsulation layer provided on the sidewall of the groove.
  • the cross-sectional shape of the groove is any one of a square, a triangle, and a trapezoid.
  • a plurality of grooves are provided on the blocking part, and the plurality of grooves are arranged on the blocking part at intervals.
  • a barrier wall structure is further provided on the insulating layer, the barrier wall structure is close to the crack barrier structure, and the encapsulation layer covers the barrier wall structure.
  • an embodiment of the present application also provides a light emitting panel, including:
  • the crack blocking structure includes a blocking portion and an extension portion, the blocking portion is disposed on at least one end of the insulating layer, and the extension portion extends to the substrate;
  • At least one groove is provided on the blocking portion, and the groove includes an opening and an inner cavity extending from the opening to the inside of the blocking portion.
  • a retaining wall structure is also provided on the insulating layer, so The retaining wall structure is close to the crack blocking structure, and the packaging layer covers the retaining wall structure.
  • the bottom of the cavity has at least one included angle, and the included angle is 60° to 120°, and the horizontal opening length of the opening is greater than 5 microns.
  • the light-emitting panel provided by the embodiment of the present application includes a substrate and an insulating layer disposed on the substrate; a crack blocking structure includes a blocking part and an extension part, the blocking part is disposed on at least one end of the insulating layer, so The extension portion extends to the substrate; an encapsulation layer covering the crack blocking structure and the substrate; wherein at least one groove is provided on the blocking portion. Therefore, the cracks generated by cutting the light-emitting panel are prevented from extending to the display area, and the yield of the light-emitting panel is improved.
  • FIG. 1 is a schematic structural diagram of a display device provided by an embodiment of the application.
  • FIG. 2 is a schematic structural diagram of a light emitting panel provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of a first structure of a crack barrier structure in a light emitting panel provided by an embodiment of the application.
  • FIG. 4 is a schematic diagram of the second structure of the crack barrier structure in the light emitting panel provided by the embodiment of the application.
  • FIG. 5 is a schematic diagram of a third structure of the crack barrier structure in the light-emitting panel provided by an embodiment of the application.
  • the narrowest border (Border) is about 1.1 mm, and one of the factors limiting the Border is chemical vapor deposition (chemical vapor deposition).
  • Mask shadow (Mask Shadow)
  • the distance from the film thickness stability area of the CVD deposited packaging layer to the edge of the Shadow is about 200 microns, in order to prevent the CVD shadow film or the thicker area of the CVD shadow from entering the dicing path, causing cracks in the package CVD film when cutting the lobes (Crack) Extend in the direction of the display area to reduce the reliability of the package.
  • An embodiment of the present application provides a display device including: a housing and a light emitting panel, the light emitting panel is disposed on the housing, and the light emitting panel includes:
  • the crack blocking structure includes a blocking portion and an extension portion, the blocking portion is disposed on at least one end of the insulating layer, and the extension portion extends to the substrate;
  • At least one groove is provided on the blocking portion.
  • the groove includes an opening and an inner cavity extending from the opening to the inside of the blocking portion.
  • the bottom of the inner cavity has at least one included angle, and the angle of the included angle is 60° ⁇ 120°.
  • a concave-convex structure is provided on the side wall of the inner cavity, and the cross-sectional shape of the concave-convex structure is wavy or sawtooth.
  • the horizontal opening length of the opening part is greater than 5 microns.
  • the thickness of the packaging layer provided on the extension portion is greater than the thickness of the packaging layer provided on the sidewall of the groove.
  • the cross-sectional shape of the groove is any one of square, triangle and trapezoid.
  • a plurality of grooves are provided on the blocking portion, and the plurality of grooves are arranged on the blocking portion at intervals.
  • a retaining wall structure is further provided on the insulating layer, the retaining wall structure is close to the crack blocking structure, and the packaging layer covers the retaining wall structure.
  • FIG. 1 is a schematic structural diagram of a display device 1000 according to an embodiment of the application.
  • the display device 1000 may include a light emitting panel 100, a control circuit 200, and a housing 300. It should be noted that the display device 1000 shown in FIG. 1 is not limited to the above content, and may also include other devices, such as a camera, an antenna structure, a pattern unlocking module, and the like.
  • the light-emitting panel 100 is disposed on the housing 200.
  • the light-emitting panel 100 may be fixed to the housing 200, and the light-emitting panel 100 and the housing 300 form a closed space to accommodate devices such as the control circuit 200.
  • the housing 300 may be made of a flexible material, such as a plastic housing or a silicone housing.
  • control circuit 200 is installed in the housing 300, the control circuit 200 may be the main board of the display device 1000, and the control circuit 200 may be integrated with a battery, an antenna structure, a microphone, a speaker, a headphone interface, a universal serial bus interface, One, two or more of functional components such as camera, distance sensor, ambient light sensor, receiver, and processor.
  • the light-emitting panel 100 is installed in the housing 300, and at the same time, the light-emitting panel 100 is electrically connected to the control circuit 200 to form the display surface of the display device 1000.
  • the light emitting panel 100 may include a display area and a non-display area.
  • the display area can be used to display the screen of the display device 1000 or for the user to perform touch manipulation.
  • This non-display area can be used to set various functional components.
  • FIG. 2 is a schematic structural diagram of a light emitting panel provided by an embodiment of the application.
  • the light emitting panel 100 includes:
  • the crack blocking structure 30 includes a blocking portion 301 and an extension portion 302, the blocking portion 301 is disposed on at least one end of the insulating layer 20, and the extension portion 302 extends to the substrate 10;
  • At least one groove 3011 is provided on the blocking portion 301.
  • the AA area here is a CVD Shadow area, and the cutting line is at the contact point of the crack blocking structure 30 and the substrate 10.
  • the cracks generated will be blocked along with the crack.
  • the upper surface of the structure 30 extends toward the negative half axis of the X axis.
  • At least one groove 3011 is provided on the blocking portion 301 of the crack blocking structure 30. The structure of the groove 3011 will cause the encapsulation layer 40 deposited by CVD to be deposited following the shape of the groove 3011, which will cause the crack to be in the encapsulation layer. There are multiple extension inflection points when extending on the top 40.
  • inflection points are the top of the crack stop structure, for example (the junction of the stop part 301 and the extension part 302). Therefore, when the crack extends to the top of the crack stop structure 30, there will be stress defects. Points or stress defect areas are automatically broken, and the crack is difficult to continue to extend.
  • the crack barrier structure 30 here may be composed of an organic planarization layer (PLN); the packaging layer 40 is composed of a first inorganic packaging layer 401 and a second inorganic packaging layer 402, and the second inorganic packaging layer 402 covers On the first inorganic encapsulation layer 401, an organic encapsulation layer (not shown in the figure) is further provided between the first inorganic encapsulation layer 401 and the second inorganic encapsulation layer 402; the substrate 10 may be a flexible substrate.
  • PPN organic planarization layer
  • the light-emitting panel 100 provided by the embodiment of the present application includes a substrate 10 and an insulating layer 20 disposed on the substrate 10; the crack blocking structure 30 includes a blocking portion 301 and an extension portion 302, and the blocking portion 301 is disposed on the On at least one end of the insulating layer 20, the extension portion 302 extends to the substrate 10; an encapsulation layer 40, which covers the crack blocking structure 30 and the substrate 10; wherein the blocking layer At least one groove 3011 is provided on the portion 301 to prevent cracks generated by cutting the light-emitting panel 100 from extending to the display area and improve the yield of the light-emitting panel.
  • the substrate 10 includes: a flexible layer 101, an M/B layer 102, and a buffer layer 103 that are sequentially stacked from bottom to top, and the insulating layer 20 is provided on the buffer layer 103.
  • the M/B layer 102 may include a G1 layer, a G2 layer, and an interlayer dielectric layer (Inter Layer Dielectric, ILD) (none of which is shown in the figure).
  • ILD Inter Layer Dielectric
  • a retaining wall structure 50 is further provided on the insulating layer 20, the retaining wall structure 50 is close to the crack blocking structure 30, and the encapsulation layer 40 covers the retaining wall structure 50 .
  • the barrier structure 50 is generally used to block the organic packaging layer in the packaging layer 40, and the display area is in the direction of the barrier structure 50 to the negative half axis of the X axis.
  • FIG. 3 is a schematic diagram of the first structure of the crack barrier structure in the light emitting panel provided by the embodiment of the application.
  • the groove 3011 includes an opening 30111 and an inner cavity 30112 extending from the opening 30111 to the inside of the blocking portion 301.
  • the cross-sectional shape of the groove 3011 is any one of a square, a triangle and a trapezoid.
  • FIG. 3 only shows the case where the cross-sectional shape of the groove 3011 is a square, and the same is true for a triangle or a trapezoid, which is not repeated here.
  • the groove 3011 can be formed by sputtering, deposition or ink-jet printing (IJP) with a high-precision mask (Mask).
  • the bottom of the inner cavity 30112 has at least an included angle ⁇ , and the angle ⁇ of the included angle is 60° ⁇ 120°.
  • the formed groove 3011 when the angle ⁇ is less than 90°, the formed groove 3011 has a triangular or trapezoidal cross-sectional shape, and when the angle ⁇ is greater than 90°, the groove formed is The cross-sectional shape of 3011 is trapezoidal.
  • the angle of the included angle ⁇ is 90°.
  • FIG. 4 is a schematic diagram of a second structure of a crack barrier structure in a light emitting panel provided by an embodiment of the application.
  • a concave-convex structure 30113 is provided on the sidewall of the cavity 3011, and The cross-sectional shape of the concave-convex structure 30113 is wavy or sawtooth.
  • the function of providing the concave-convex structure 30113 on the side wall of the inner cavity 3011 is the same as the principle of providing the groove 3011, which is to generate an extension inflection point, which makes it difficult for the crack to continue to extend.
  • the cross-sectional shape of the concave-convex structure can be sawtooth, as shown in Figure 4, or wavy, which will not be repeated here.
  • the encapsulation layer 40 is deposited by CVD, due to the presence of the concave-convex structure 30113 on the sidewall of the cavity 30112, the deposited first inorganic encapsulation layer 401 will be formed relative to the concave-convex structure 30113, which can also be like the second inorganic encapsulation layer As shown in 402, it directly covers the uneven structure 30113, and does not form an uneven structure relative to the uneven structure 30113.
  • the horizontal opening length W1 of the opening 30111 is greater than 5 microns.
  • the horizontal opening length W1 of the opening portion 30111 is defined here to allow the packaging layer 40 to be deposited into the groove 3011 when the packaging layer 40 is subsequently prepared, so as to avoid packaging failure.
  • FIG. 5 is a schematic diagram of the third structure of the crack blocking structure in the light emitting panel provided by the embodiment of the application.
  • the thickness of the packaging layer 40 provided on the extension portion 301 is greater than the thickness of the packaging layer 40 provided on the sidewall of the groove 3011.
  • the encapsulation layer 40 is easily deposited on the extension 301, while it is difficult to deposit on the sidewall of the groove 3011.
  • a plurality of grooves 3011 are provided on the blocking portion 301, and the plurality of grooves 3011 are arranged on the blocking portion 301 at intervals.
  • the package may fail. Therefore, multiple grooves 3011 can be provided on the blocking portion 301 to reduce the crack extension. Probability, thereby improving the yield of the light-emitting panel 100.
  • the gap between the adjacent grooves 3011 between the formed grooves 3011 may be different, and the opening length and shape of the opening of the groove 3011 formed may also be different.
  • the light-emitting panel 100 provided by the embodiment of the present application includes a substrate 10 and an insulating layer 20 disposed on the substrate 10; the crack blocking structure 30 includes a blocking portion 301 and an extension portion 302, and the blocking portion 301 is disposed on the On at least one end of the insulating layer 20, the extension portion 302 extends to the substrate 10; an encapsulation layer 40, which covers the crack blocking structure 30 and the substrate 10; wherein the blocking layer At least one groove 3011 is provided on the portion 301.
  • One or more grooves 3011 are provided to reduce the probability of crack extension, and a concave-convex structure 30113 is provided on the sidewall of the cavity 30112 in the groove 3011 to prevent the cracks generated by cutting the light-emitting panel 100 from extending to the display area, thereby improving the light-emitting panel The yield rate.
  • the embodiment of the present application also provides a light emitting panel, including:
  • the crack blocking structure includes a blocking portion and an extension portion, the blocking portion is disposed on at least one end of the insulating layer, and the extension portion extends to the substrate;
  • At least one groove is provided on the blocking portion, and the groove includes an opening and an inner cavity extending from the opening to the inside of the blocking portion.
  • a retaining wall structure is also provided on the insulating layer, so The retaining wall structure is close to the crack blocking structure, and the packaging layer covers the retaining wall structure.
  • the bottom of the inner cavity has at least one included angle, and the included angle is 60° to 120°, and the horizontal opening length of the opening is greater than 5 microns.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

一种发光面板及显示装置，发光面板包括：基板，以及设置在基板上的绝缘层；裂纹阻挡结构，包括阻挡部及延伸部，阻挡部设置在所述绝缘层的至少一端上，延伸部延伸至基板上；封装层，封装层覆盖在裂纹阻挡结构及基板上；其中，阻挡部上设置有至少一凹槽。从而避免切割发光面板产生的裂纹向显示区延伸，提高发光面板的良率。

Description

发光面板及显示装置 技术领域
本申请涉及显示技术领域，具体涉及一种发光面板及显示装置。
 背景技术
近年来，柔性发光器件（Organic Light Emitting Diode, OLED）因具有广色域、高对比度、大视角、反应速率快、轻薄等优势而逐渐呈现出取代薄膜晶体管液晶显示器（Thin Film Transistor-Liquid Crystal Display，TFT-LCD）的趋势。在手机、手表等应用领域，随着消费者对大屏的钟爱，屏幕的屏占比要求越来越高。
相关技术中，提高屏占比的方法之一就是设计更窄的边界（Border），而限制Border的因素之一就是在对发光面板进行封装时，存在掩膜阴影（Mask Shadow），在对发光面板进行切割时，产生的裂纹（Crack）会沿着Mask Shadow向显示区延伸，造成封装层失效，影响发光面板的质量
因此，现有技术存在缺陷，急需改进。
 技术问题
本申请实施例提供一种发光面板及显示装置，可以避免切割发光面板产生的裂纹向显示区延伸，提高发光面板的良率。
 技术解决方案
第一方面，本申请实施例提供一种发光面板，包括：
基板，以及设置在所述基板上的绝缘层；
裂纹阻挡结构，包括阻挡部及延伸部，所述阻挡部设置在所述绝缘层的至少一端上，所述延伸部延伸至所述基板上；
封装层，所述封装层覆盖在所述裂纹阻挡结构及所述基板上；其中，
所述阻挡部上设置有至少一凹槽。
在本申请所述的发光面板中，所述凹槽包括开口部以及自所述开口部向所述阻挡部内部延伸的内腔。
在本申请所述的发光面板中，所述内腔的底部具有至少一夹角，且所述夹角的角度为60°~120°。
在本申请所述的发光面板中，所述内腔的侧壁上设置有凹凸结构，且所述凹凸结构的截面形状为波浪状或锯齿状。
在本申请所述的发光面板中，所述开口部的水平开口长度大于5微米。
在本申请所述的发光面板中，设置在所述延伸部上的所述封装层的厚度大于设置在所述凹槽侧壁上的所述封装层的厚度。
在本申请所述的发光面板中，所述凹槽的截面形状为方形、三角形及梯形中任一种。
在本申请所述的发光面板中，在所述阻挡部上设置有多个凹槽，所述多个凹槽间隔排布在所述阻挡部上。
在本申请所述的发光面板中，在所述绝缘层上还设置有挡墙结构，所述挡墙结构靠近所述裂纹阻挡结构，且所述封装层覆盖在所述挡墙结构上。
第二方面，本申请实施例还提供一种显示装置，包括：壳体以及发光面板，所述发光面板设置在所述壳体上，所述发光面板包括：
基板，以及设置在所述基板上的绝缘层；
裂纹阻挡结构，包括阻挡部及延伸部，所述阻挡部设置在所述绝缘层的至少一端上，所述延伸部延伸至所述基板上；
封装层，所述封装层覆盖在所述裂纹阻挡结构及所述基板上；其中，
所述阻挡部上设置有至少一凹槽。
在本申请所述的显示装置中，所述凹槽包括开口部以及自所述开口部向所述阻挡部内部延伸的内腔。
在本申请所述的显示装置中，所述内腔的底部具有至少一夹角，且所述夹角的角度为60°~120°。
在本申请所述的显示装置中，所述内腔的侧壁上设置有凹凸结构，且所述凹凸结构的截面形状为波浪状或锯齿状。
在本申请所述的显示装置中，所述开口部的水平开口长度大于5微米。
在本申请所述的显示装置中，设置在所述延伸部上的所述封装层的厚度大于设置在所述凹槽侧壁上的所述封装层的厚度。
在本申请所述的显示装置中，所述凹槽的截面形状为方形、三角形及梯形中任一种。
在本申请所述的显示装置中，在所述阻挡部上设置有多个凹槽，所述多个凹槽间隔排布在所述阻挡部上。
在本申请所述的显示装置中，在所述绝缘层上还设置有挡墙结构，所述挡墙结构靠近所述裂纹阻挡结构，且所述封装层覆盖在所述挡墙结构上。
第三方面，本申请实施例还提供一种发光面板，包括：
基板，以及设置在所述基板上的绝缘层；
裂纹阻挡结构，包括阻挡部及延伸部，所述阻挡部设置在所述绝缘层的至少一端上，所述延伸部延伸至所述基板上；
封装层，所述封装层覆盖在所述裂纹阻挡结构及所述基板上；其中，
所述阻挡部上设置有至少一凹槽，所述凹槽包括开口部以及自所述开口部向所述阻挡部内部延伸的内腔，在所述绝缘层上还设置有挡墙结构，所述挡墙结构靠近所述裂纹阻挡结构，且所述封装层覆盖在所述挡墙结构上。
在本申请所述的发光面板中，所述内腔的底部具有至少一夹角，且所述夹角的角度为60°~120°，所述开口部的水平开口长度大于5微米。
 有益效果
本申请实施例提供的发光面板，包括基板，以及设置在所述基板上的绝缘层；裂纹阻挡结构，包括阻挡部及延伸部，所述阻挡部设置在所述绝缘层的至少一端上，所述延伸部延伸至所述基板上；封装层，所述封装层覆盖在所述裂纹阻挡结构及所述基板上；其中，所述阻挡部上设置有至少一凹槽。从而避免切割发光面板产生的裂纹向显示区延伸，提高发光面板的良率。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例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申请的一些实施例，对于本领域技术人员来讲，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为本申请实施例提供的显示装置的结构示意图。
图2为本申请实施例提供的发光面板的结构示意图。
图3为本申请实施例提供的发光面板中裂纹阻挡结构的第一种结构示意图。
图4为本申请实施例提供的发光面板中裂纹阻挡结构的第二种结构示意图。
图5为本申请实施例提供的发光面板中裂纹阻挡结构的第三种结构示意图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请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申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
现有技术中，在已经上市的柔性发光器件（Organic Light Emitting Diode, OLED）中，其边界（Border）最窄为1.1毫米左右，而限制Border的因素之一就是化学气相沉积（chemical vapor deposition，CVD）时存在掩膜阴影（Mask Shadow），从CVD沉积的封装层的膜厚稳定区到Shadow边缘距离约200 微米，为了避免CVD shadow膜或CVD Shadow较厚的区域进入切割道导致切割裂片时封装CVD膜层的裂纹（Crack）向显示区区方向延伸，降低封装的信赖性，Border区封装层的膜厚均一区边缘到切割道的距离必须足够大。为此，已有部分设计加入裂纹阻挡结构（Crack Stop）设计来防止Crack向显示区延伸。而Crack会沿着裂纹阻挡结构连续的延伸进入异性切割道，造成封装层失效。
本申请实施例提供一种显示装置，包括：壳体以及发光面板，所述发光面板设置在所述壳体上，所述发光面板包括：
基板，以及设置在所述基板上的绝缘层；
裂纹阻挡结构，包括阻挡部及延伸部，所述阻挡部设置在所述绝缘层的至少一端上，所述延伸部延伸至所述基板上；
封装层，所述封装层覆盖在所述裂纹阻挡结构及所述基板上；其中，
所述阻挡部上设置有至少一凹槽。
其中，所述凹槽包括开口部以及自所述开口部向所述阻挡部内部延伸的内腔。
其中，所述内腔的底部具有至少一夹角，且所述夹角的角度为60°~120°。
其中，所述内腔的侧壁上设置有凹凸结构，且所述凹凸结构的截面形状为波浪状或锯齿状。
其中，所述开口部的水平开口长度大于5微米。
其中，设置在所述延伸部上的所述封装层的厚度大于设置在所述凹槽侧壁上的所述封装层的厚度。
其中，所述凹槽的截面形状为方形、三角形及梯形中任一种。
其中，在所述阻挡部上设置有多个凹槽，所述多个凹槽间隔排布在所述阻挡部上。
其中，在所述绝缘层上还设置有挡墙结构，所述挡墙结构靠近所述裂纹阻挡结构，且所述封装层覆盖在所述挡墙结构上。
请参阅图1，图1为本申请实施例提供的显示装置1000的结构示意图。该显示装置1000可以包括发光面板100、控制电路200、以及壳体300。需要说明的是，图1所示的显示装置1000并不限于以上内容，其还可以包括其他器件，比如还可以包括摄像头、天线结构、纹解锁模块等。
其中，发光面板100设置于壳体200上。
在一些实施例中，发光面板100可以固定到壳体200上，发光面板100和壳体300形成密闭空间，以容纳控制电路200等器件。
在一些实施例中，壳体300可以为由柔性材料制成，比如为塑胶壳体或者硅胶壳体等。
其中，该控制电路200安装在壳体300中，该控制电路200可以为显示装置1000的主板，控制电路200上可以集成有电池、天线结构、麦克风、扬声器、耳机接口、通用串行总线接口、摄像头、距离传感器、环境光传感器、受话器以及处理器等功能组件中的一个、两个或多个。
其中，该发光面板100安装在壳体300中，同时，该发光面板100电连接至控制电路200上，以形成显示装置1000的显示面。该发光面板100可以包括显示区域和非显示区域。该显示区域可以用来显示显示装置1000的画面或者供用户进行触摸操控等。该非显示区域可用于设置各种功能组件。
请参阅图2，图2为本申请实施例提供的发光面板的结构示意图，该发光面板100包括：
基板10，以及设置在所述基板10上的绝缘层20；
裂纹阻挡结构30，包括阻挡部301及延伸部302，所述阻挡部301设置在所述绝缘层20的至少一端上，所述延伸部302延伸至所述基板10上；
封装层40，所述封装层40覆盖在所述裂纹阻挡结构30及所述基板10上；其中，
所述阻挡部301上设置有至少一凹槽3011。
可以理解，这里的AA区域为CVD Shadow区，切割道在所述裂纹阻挡结构30与所述基板10的接触点处，在对所述发光面板100进行切割时，产生的裂纹会随着裂纹阻挡结构30的上表面向X轴的负半轴延伸。在裂纹阻挡结构30的阻挡部301上设置有至少一凹槽3011，凹槽3011的结构会使得在后续通过CVD沉积的封装层40随凹槽3011的形状沉积，这就会使得裂纹在封装层40上延伸时存在多个延伸拐点，这些拐点即为裂纹阻挡结构的顶端，例如（阻挡部301与延伸部302的交接处），因此裂纹在延伸至裂纹阻挡结构30的顶端时会因应力缺陷点或应力缺陷区而自动断开，裂纹很难继续延伸。
具体的，这里的裂纹阻挡结构30可以由有机平坦层（Planarizationlayer，PLN）组成；封装层40由第一无机封装层401及第二无机封装层402组成，所述第二无机封装层402覆盖在所述第一无机封装层401上，在所述第一无机封装层401及第二无机封装层402之间还设置有有机封装层（图中未示出）；基板10可以为柔性基板。
本申请实施例提供的发光面板100，包括基板10，以及设置在所述基板10上的绝缘层20；裂纹阻挡结构30，包括阻挡部301及延伸部302，所述阻挡部301设置在所述绝缘层20的至少一端上，所述延伸部302延伸至所述基板10上；封装层40，所述封装层40覆盖在所述裂纹阻挡结构30及所述基板10上；其中，所述阻挡部301上设置有至少一凹槽3011，从而避免切割发光面板100产生的裂纹向显示区延伸，提高发光面板的良率。
在一些实例中，所述基板10包括：从下至上依次层叠设置的柔性层101、M/B层102及缓冲层103，所述绝缘层20设置在所述缓冲层103上。
其中，M/B层102可以包括G1层、G2层及层间介质层（Inter Layer Dielectric，ILD），（图中均未示出）。
在一些实施例中，在所述绝缘层20上还设置有挡墙结构50，所述挡墙结构50靠近所述裂纹阻挡结构30，且所述封装层40覆盖在所述挡墙结构50上。
其中，挡墙结构50一般用于阻挡封装层40中的有机封装层，显示区即在所述挡墙结构50向X轴负半轴的方向。
在一些实施例中，如图3所示，图3为本申请实施例提供的发光面板中裂纹阻挡结构的第一种结构示意图。
其中，所述凹槽3011包括开口部30111以及自所述开口部30111向所述阻挡部301内部延伸的内腔30112。
其中，所述凹槽3011的截面形状为方形、三角形及梯形中任一种，图3仅示出了凹槽3011的截面形状为方形的情况，三角形或梯形亦然，这里不再赘述。
凹槽3011的形成方式可以由高精度的掩膜版（Mask）进行溅射、沉积或喷墨打印（Ink-Jet Printing，IJP）形成。
在一些实施例中，所述内腔30112的底部具有至少一夹角α，且所述夹角的α角度为60°~120°。
可以理解，当所述夹角α的角度小于90°时，形成的所述凹槽3011的截面形状为三角形或梯形，当所述夹角α的角度大于90°时，形成的所述凹槽3011的截面形状为梯形。较佳的，这里夹角α的角度为90°。
在一些实施例中，如图4所示，图4为本申请实施例提供的发光面板中裂纹阻挡结构的第二种结构示意图，所述内腔3011的侧壁上设置有凹凸结构30113，且所述凹凸结构30113的截面形状为波浪状或锯齿状。
可以理解，这里在内腔3011的侧壁上设置凹凸结构30113的作用与设置凹槽3011的原理相同，是为了产生延伸拐点，使裂纹较难继续延伸。
凹凸结构的截面形状可以是锯齿状，如图4，或者为波浪状，这里不再赘述。这里封装层40在进行CVD沉积时，由于内腔30112中侧壁的凹凸结构30113的存在，使得沉积形成的第一无机封装层401会相对于凹凸结构30113形成，也可以如第二无机封装层402所示，直接覆盖在凹凸结构30113上，不会相对于凹凸结构30113形成凹凸状结构。
在一些实施例中，所述开口部30111的水平开口长度W1大于5微米。
具体的，这里限定开口部30111的水平开口长度W1是为了在后续制备封装层40时，使得封装层40可以沉积进入凹槽3011中，避免封装失效。
在一些实施例中，如图5所示，图5为本申请实施例提供的发光面板中裂纹阻挡结构的第三种结构示意图。设置在所述延伸部301上的所述封装层40的厚度大于设置在所述凹槽3011侧壁上的所述封装层40的厚度。
具体的，由于凹槽3011内腔30112中夹角α的存在，在沉积封装层40时，封装层40很容易沉积在延伸部301上，而较难的沉积在凹槽3011的侧壁上。
在一些实施例中，在所述阻挡部301上设置有多个凹槽3011，所述多个凹槽3011间隔排布在所述阻挡部301上。
具体的，如果裂纹通过阻挡部301与延伸部302的交接处的拐点继续延伸，也可能存在封装失效的情况，因此，可以设置在所述阻挡部301上多个凹槽3011，降低裂纹延伸的概率，进而提高发光面板100的良率。
可以理解，由于在形成凹槽3011的过程中需要用到高精度的掩膜版进行溅射、沉积或者喷墨打印，因此，形成的多个凹槽3011之间相邻凹槽3011之间的间隙可以不相同，并且形成的凹槽3011的开口部的开口长度以及形状也可以不相同。
本申请实施例提供的发光面板100，包括基板10，以及设置在所述基板10上的绝缘层20；裂纹阻挡结构30，包括阻挡部301及延伸部302，所述阻挡部301设置在所述绝缘层20的至少一端上，所述延伸部302延伸至所述基板10上；封装层40，所述封装层40覆盖在所述裂纹阻挡结构30及所述基板10上；其中，所述阻挡部301上设置有至少一凹槽3011。通过设置一个或多个凹槽3011降低裂纹延伸的概率，并且通过在凹槽3011中内腔30112的侧壁上设置凹凸结构30113从而避免切割发光面板100产生的裂纹向显示区延伸，提高发光面板的良率。
本申请实施例还提供一种发光面板，包括：
基板，以及设置在所述基板上的绝缘层；
裂纹阻挡结构，包括阻挡部及延伸部，所述阻挡部设置在所述绝缘层的至少一端上，所述延伸部延伸至所述基板上；
封装层，所述封装层覆盖在所述裂纹阻挡结构及所述基板上；其中，
所述阻挡部上设置有至少一凹槽，所述凹槽包括开口部以及自所述开口部向所述阻挡部内部延伸的内腔，在所述绝缘层上还设置有挡墙结构，所述挡墙结构靠近所述裂纹阻挡结构，且所述封装层覆盖在所述挡墙结构上。
其中，所述内腔的底部具有至少一夹角，且所述夹角的角度为60°~120°，所述开口部的水平开口长度大于5微米。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例所提供的一种发光面板及显示装置进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (20)

  1. 一种发光面板，其包括：
    基板，以及设置在所述基板上的绝缘层；
    裂纹阻挡结构，包括阻挡部及延伸部，所述阻挡部设置在所述绝缘层的至少一端上，所述延伸部延伸至所述基板上；
    封装层，所述封装层覆盖在所述裂纹阻挡结构及所述基板上；其中，
    所述阻挡部上设置有至少一凹槽。
  2. 根据权利要求1所述的发光面板，其中所述凹槽包括开口部以及自所述开口部向所述阻挡部内部延伸的内腔。
  3. 根据权利要求2所述的发光面板，其中所述内腔的底部具有至少一夹角，且所述夹角的角度为60°~120°。
  4. 根据权利要求3所述的发光面板，其中所述内腔的侧壁上设置有凹凸结构，且所述凹凸结构的截面形状为波浪状或锯齿状。
  5. 根据权利要求2所述的发光面板，其中所述开口部的水平开口长度大于5微米。
  6. 根据权利要求1所述的发光面板，其中设置在所述延伸部上的所述封装层的厚度大于设置在所述凹槽侧壁上的所述封装层的厚度。
  7. 根据权利要求6所述的发光面板，其中所述凹槽的截面形状为方形、三角形及梯形中任一种。
  8. 根据权利要求1所述的发光面板，其中在所述阻挡部上设置有多个凹槽，所述多个凹槽间隔排布在所述阻挡部上。
  9. 根据权利要求1所述的发光面板，其中在所述绝缘层上还设置有挡墙结构，所述挡墙结构靠近所述裂纹阻挡结构，且所述封装层覆盖在所述挡墙结构上。
  10. 一种显示装置，其包括：壳体及发光面板，所述发光面板设置在所述壳体上，所述发光面板包括：
    基板，以及设置在所述基板上的绝缘层；
    裂纹阻挡结构，包括阻挡部及延伸部，所述阻挡部设置在所述绝缘层的至少一端上，所述延伸部延伸至所述基板上；
    封装层，所述封装层覆盖在所述裂纹阻挡结构及所述基板上；其中，
    所述阻挡部上设置有至少一凹槽。
  11. 根据权利要求10所述的显示装置，其中所述凹槽包括开口部以及自所述开口部向所述阻挡部内部延伸的内腔。
  12. 根据权利要求11所述的显示装置，其中所述内腔的底部具有至少一夹角，且所述夹角的角度为60°~120°。
  13. 根据权利要求12所述的显示装置，其中所述内腔的侧壁上设置有凹凸结构，且所述凹凸结构的截面形状为波浪状或锯齿状。
  14. 根据权利要求11所述的显示装置，其中所述开口部的水平开口长度大于5微米。
  15. 根据权利要求10所述的显示装置，其中设置在所述延伸部上的所述封装层的厚度大于设置在所述凹槽侧壁上的所述封装层的厚度。
  16. 根据权利要求15所述的显示装置，其中所述凹槽的截面形状为方形、三角形及梯形中任一种。
  17. 根据权利要求10所述的显示装置，其中在所述阻挡部上设置有多个凹槽，所述多个凹槽间隔排布在所述阻挡部上。
  18. 根据权利要求10所述的显示装置，其中在所述绝缘层上还设置有挡墙结构，所述挡墙结构靠近所述裂纹阻挡结构，且所述封装层覆盖在所述挡墙结构上。
  19. 一种发光面板，其包括：
    基板，以及设置在所述基板上的绝缘层；
    裂纹阻挡结构，包括阻挡部及延伸部，所述阻挡部设置在所述绝缘层的至少一端上，所述延伸部延伸至所述基板上；
    封装层，所述封装层覆盖在所述裂纹阻挡结构及所述基板上；其中，
    所述阻挡部上设置有至少一凹槽，所述凹槽包括开口部以及自所述开口部向所述阻挡部内部延伸的内腔，在所述绝缘层上还设置有挡墙结构，所述挡墙结构靠近所述裂纹阻挡结构，且所述封装层覆盖在所述挡墙结构上。
  20. 根据权利要求19所述的发光面板，其中所述内腔的底部具有至少一夹角，且所述夹角的角度为60°~120°，所述开口部的水平开口长度大于5微米。
PCT/CN2019/105154 2019-06-19 2019-09-10 发光面板及显示装置 WO2020252944A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/614,056 US20210343983A1 (en) 2019-06-19 2019-09-10 Light emitting panel and display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910533342.2 2019-06-19
CN201910533342.2A CN110335961A (zh) 2019-06-19 2019-06-19 发光面板及显示装置

Publications (1)

Publication Number Publication Date
WO2020252944A1 true WO2020252944A1 (zh) 2020-12-24

Family

ID=68142157

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/105154 WO2020252944A1 (zh) 2019-06-19 2019-09-10 发光面板及显示装置

Country Status (3)

Country Link
US (1) US20210343983A1 (zh)
CN (1) CN110335961A (zh)
WO (1) WO2020252944A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111509021B (zh) * 2020-04-29 2024-02-27 京东方科技集团股份有限公司 一种显示基板及其制备方法和显示面板
CN111725419B (zh) * 2020-06-02 2021-11-23 武汉华星光电半导体显示技术有限公司 柔性显示器及其制备方法
US11424270B2 (en) 2020-06-02 2022-08-23 Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. Flexible display device and manufacturing method thereof
CN117425368A (zh) * 2022-07-08 2024-01-19 京东方科技集团股份有限公司 显示面板和显示装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107634071A (zh) * 2017-10-17 2018-01-26 京东方科技集团股份有限公司 显示基板母板及其制作方法、显示基板、显示装置
CN109103346A (zh) * 2018-08-17 2018-12-28 京东方科技集团股份有限公司 一种封装结构及显示面板
CN109616506A (zh) * 2018-12-18 2019-04-12 武汉华星光电半导体显示技术有限公司 全屏显示面板及其制作方法
CN109638019A (zh) * 2018-12-06 2019-04-16 武汉华星光电半导体显示技术有限公司 显示面板、掩膜版以及显示设备
CN109860411A (zh) * 2017-11-30 2019-06-07 京东方科技集团股份有限公司 一种oled显示面板及其制备方法、oled显示装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108258145B (zh) * 2018-01-16 2020-04-10 京东方科技集团股份有限公司 一种显示面板及显示装置
CN108649141B (zh) * 2018-05-14 2020-06-23 云谷（固安）科技有限公司 显示屏及其制备方法
CN109671864B (zh) * 2018-12-20 2020-06-30 武汉华星光电技术有限公司 Oled显示面板

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107634071A (zh) * 2017-10-17 2018-01-26 京东方科技集团股份有限公司 显示基板母板及其制作方法、显示基板、显示装置
CN109860411A (zh) * 2017-11-30 2019-06-07 京东方科技集团股份有限公司 一种oled显示面板及其制备方法、oled显示装置
CN109103346A (zh) * 2018-08-17 2018-12-28 京东方科技集团股份有限公司 一种封装结构及显示面板
CN109638019A (zh) * 2018-12-06 2019-04-16 武汉华星光电半导体显示技术有限公司 显示面板、掩膜版以及显示设备
CN109616506A (zh) * 2018-12-18 2019-04-12 武汉华星光电半导体显示技术有限公司 全屏显示面板及其制作方法

Also Published As

Publication number Publication date
US20210343983A1 (en) 2021-11-04
CN110335961A (zh) 2019-10-15

Similar Documents

Publication Publication Date Title
WO2020252944A1 (zh) 发光面板及显示装置
CN107452894B (zh) 一种有机电致发光显示面板、其制作方法及显示装置
US10431771B2 (en) Organic light-emitting display device
KR20210123389A (ko) 디스플레이 패널, 그 제조 방법 및 디스플레이 장치
EP3678206A1 (en) Organic electroluminescent display substrate and manufacturing method thereof, and display device
JP7395359B2 (ja) 表示基板及び表示装置
US11282904B2 (en) Organic light emitting diode display device, method of manufacturing the OLED display device, and electronic device
JP7374770B2 (ja) 表示基板、その製造方法、及び表示基板を含む表示パネル
WO2021017320A1 (zh) 有机发光器件、显示装置及有机发光器件的制作方法
WO2021254058A1 (zh) 显示基板及其制备方法、显示装置
WO2022012259A1 (zh) 柔性显示装置及电子设备
US11482694B2 (en) Display panel, method for fabricating the same, and display device
WO2021097690A1 (zh) 显示基板及其制作方法和显示装置
US11563064B2 (en) Array substrate, display device, and method for fabricating an array substrate
JP7286541B2 (ja) 薄膜封止方法、薄膜封止構造、表示装置
WO2021237867A1 (zh) 显示基板及其制造方法和显示装置
WO2021217806A1 (zh) 一种显示面板
WO2021128540A1 (zh) 显示面板及其制作方法
US10916726B2 (en) Crack extension blocking structure, display panel, display apparatus, and production method thereof
US20210336159A1 (en) Display substrate, manufacturing method thereof, and display apparatus
US20220310714A1 (en) Display panel
US20240032346A1 (en) Display panel
WO2020252947A1 (zh) 显示面板
US20220238625A1 (en) Displaying base plate and display panel
US20240047378A1 (en) Display panel and mobile terminal

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19933783

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19933783

Country of ref document: EP

Kind code of ref document: A1