WO2021109339A1 - 显示面板及其制备方法 - Google Patents

显示面板及其制备方法 Download PDF

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Publication number
WO2021109339A1
WO2021109339A1 PCT/CN2020/075763 CN2020075763W WO2021109339A1 WO 2021109339 A1 WO2021109339 A1 WO 2021109339A1 CN 2020075763 W CN2020075763 W CN 2020075763W WO 2021109339 A1 WO2021109339 A1 WO 2021109339A1
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Prior art keywords
layer
organic
substrate
display
peripheral area
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PCT/CN2020/075763
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English (en)
French (fr)
Inventor
王坤
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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 US16/753,775 priority Critical patent/US11196024B2/en
Publication of WO2021109339A1 publication Critical patent/WO2021109339A1/zh

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    • 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
    • H10K50/85—Arrangements for extracting light from the devices
    • H10K50/858—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
    • 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
    • H10K59/10—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
    • 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
    • H10K59/1201—Manufacture or treatment
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass

Definitions

  • the invention relates to the field of display technology, in particular to a display panel and a preparation method thereof.
  • OLED Organic Light Emitting Diode
  • the purpose of the present invention is to provide a display panel and a method for manufacturing the same, by providing a refraction segment in the thin film encapsulation layer of the peripheral area of the display panel, and the refraction segment is provided in the first encapsulation organic layer of the encapsulation layer.
  • the refraction segment is used to make the light of the peripheral area pass through the substrate and pass through the opening to be refracted by the refraction segment to the display area, thereby increasing the display brightness of the display area near the peripheral area.
  • the present invention provides a display panel including: a substrate having a display area and a peripheral area; a thin film transistor layer provided on the substrate and corresponding to the display area; a display layer provided on the thin film transistor The side of the layer away from the substrate; the encapsulation layer is provided on the display layer and the peripheral area of the substrate; in the peripheral area, the encapsulation layer has a plurality of refraction segments, and the refraction segment has a An opening, the opening faces the substrate, and when the light in the peripheral area passes through the substrate, it is refracted by the refracting segment to the display area.
  • the material of the refraction segment includes silicon nitride, silicon oxide, silicon oxynitride, silicon carbonitride, zinc oxide or aluminum oxide.
  • the encapsulation layer includes: a first encapsulation inorganic layer disposed on the display layer and the peripheral area of the substrate, and in the peripheral area, the first encapsulation inorganic layer includes a plurality of inorganic layer segments;
  • the first encapsulating organic layer is disposed on the first encapsulating inorganic layer;
  • the second encapsulating inorganic layer is disposed on the side of the first encapsulating organic layer away from the first encapsulating inorganic layer; wherein, the refractive segment It is arranged in the first encapsulated organic layer, and each inorganic layer segment is arranged between adjacent refractive segments.
  • the cross-sectional shape of the refraction segment includes an arc shape, a linear shape or a square shape.
  • the transparent glue layer is arranged on the side of the encapsulation layer away from the substrate; the transparent glue layer is provided with a plurality of spherical particles.
  • the present invention also provides a method for manufacturing a display panel, including the following steps: providing a substrate having a display area and a peripheral area; sequentially forming a thin film transistor layer and a display layer in the display area of the substrate; forming a plurality of Organic droplets are deposited on the peripheral area of the substrate; a first encapsulated inorganic layer is deposited on the display layer and the peripheral area of the substrate, and the first encapsulated inorganic layer is between every two adjacent organic droplets An inorganic layer segment is formed, and a refractive segment is formed on the surface of each organic droplet. At the bottom of the organic droplet, there is a gap between the refractive segment and the inorganic layer segment; an organic ink is deposited on the surface.
  • the organic ink covers the organic droplet and the refraction segment; depositing a second encapsulated inorganic layer on the first encapsulated organic layer away from the first encapsulated inorganic layer side.
  • the organic liquid droplets are made of the same material as the organic ink.
  • the diameter of the organic droplets is 1-10um; the distance between adjacent organic droplets is 1-10um.
  • the organic droplets are prepared by inkjet printing.
  • the first encapsulated inorganic layer is prepared by pulsed laser deposition, magnetron sputtering, and chemical vapor deposition. An encapsulated inorganic layer.
  • the present invention provides a display panel and a manufacturing method thereof.
  • a refractive segment is provided in a thin film packaging layer of the peripheral area of the display panel, and the refractive segment is provided in a first packaging organic layer of the packaging layer.
  • the display brightness of the display area close to the peripheral area is increased.
  • the structure of the refraction segment by first depositing the organic droplet on the substrate in the peripheral area, and then depositing the first encapsulated inorganic layer, the first encapsulated inorganic layer can then form the structure of the refraction segment on the surface of the organic droplet.
  • the structure can serve as a barrier wall when preparing the first encapsulated organic layer to prevent organic ink from overflowing.
  • FIG. 1 is a schematic structural diagram of a display panel provided by one embodiment of the present invention.
  • FIG. 2 is a schematic diagram of the structure of the peripheral area of the display panel provided by one of the embodiments of the present invention after bending, which mainly shows the detailed structure of the encapsulation layer;
  • FIG. 3 is a schematic diagram of the structure of the peripheral area of the substrate provided by one of the embodiments of the present invention, in which organic droplets are formed in the peripheral area;
  • FIG. 4 is a schematic diagram of a structure of a peripheral area of a substrate provided by one of the embodiments of the present invention, in which organic droplets and a first encapsulated inorganic layer are formed in the peripheral area;
  • FIG. 5 is a schematic structural diagram of the peripheral area of the display panel provided by one of the embodiments of the present invention before bending
  • Display panel 100 display area 110; peripheral area 120;
  • Encapsulation layer 104 first encapsulated inorganic layer 1041; first encapsulated organic layer 1042;
  • one embodiment of the present invention provides a display panel 100, which includes a substrate 101, a thin film transistor layer 102, a display layer 103, and an encapsulation layer 104.
  • the substrate 101 has a display area 110 and a peripheral area 120; the material of the substrate 101 includes polyimide to make the substrate 101 flexible.
  • the display panel 100 will be bent in the peripheral area 120.
  • the thin film transistor layer 102 is provided on the substrate 101 and corresponds to the display area 110; the display layer 103 is provided on the side of the thin film transistor layer 102 away from the substrate 101; the thin film transistor layer 102 has A plurality of thin film transistors are used to drive the display layer 103 to emit light.
  • the encapsulation layer 104 is disposed on the display layer 103 and the peripheral area 120 of the substrate 101 to protect the display panel 100.
  • the encapsulation layer 104 includes: a first encapsulation inorganic layer 1041, a first encapsulation organic layer 1042, and a second encapsulation inorganic layer 1043.
  • the first encapsulating inorganic layer 1041 is disposed on the display layer 103 and the peripheral area 120 of the substrate 101. In the peripheral region 120, the first encapsulated inorganic layer 1041 includes a plurality of inorganic layer segments 1041a.
  • the first encapsulating organic layer 1042 is disposed on the first encapsulating inorganic layer 1041; the second encapsulating inorganic layer 1043 is disposed on the side of the first encapsulating organic layer 1042 away from the first encapsulating inorganic layer 1041 .
  • the encapsulation layer 104 has a plurality of refraction segments 105. Specifically, the refraction segments 105 are provided in the first encapsulation organic layer 1042. In addition, the refractive segment 105 is provided between adjacent inorganic layer segments 1041a.
  • the material of the refractive segment 105 includes silicon nitride, silicon oxide, silicon oxynitride, silicon carbonitride, zinc oxide or aluminum oxide.
  • the cross-sectional shape of the refraction segment 105 includes an arc shape, a linear shape or a square shape. In this embodiment, it is preferably a "C"-shaped arc structure; in other embodiments, the shape of the refraction segment 105 is a "V"-shaped linear structure.
  • the refraction segment 105 has an opening, the opening faces the substrate 101, and the refraction segment 105 is used for when the light 106 of the peripheral area 120 passes through the substrate 101, it is passed through the opening and is The refraction segment 105 refracts to the display area 110. As a result, the display brightness of the display area 110 close to the peripheral area 120 is improved.
  • the refraction segment 105 is provided in the first encapsulated organic layer 1042, when the peripheral area 120 of the display panel 100 is bent, the first encapsulated organic layer 1042 can relieve the generated stress and reduce Risk of failure after bending.
  • the display panel of the present invention further includes a transparent adhesive layer, not shown.
  • the transparent adhesive layer is provided on a side of the encapsulation layer 104 away from the substrate 101; a plurality of spherical particles are provided in the transparent adhesive layer.
  • the spherical particles have high permeability, so that the light 106 in the peripheral area 120 can be refracted by the refracting segment 105 to the display area 110 through the substrate 101 through the opening. As a result, the display brightness of the display area 110 close to the peripheral area 120 is improved.
  • the present invention also provides a manufacturing method of a display panel.
  • the manufacturing method includes the following steps:
  • a substrate 101 As shown in FIG. 3, a substrate 101 is provided, and the substrate 101 has a display area 110 and a peripheral area 120.
  • a plurality of organic droplets 130 are formed on the peripheral area 120 of the substrate 101; the diameter of the organic droplets 130 is 1-10um; the distance between adjacent organic droplets 130 is 1 -10um.
  • the shape of the organic droplet 130 includes: a sphere, a cone, or a cylinder.
  • the organic droplets 130 are prepared by inkjet printing.
  • a first encapsulating inorganic layer 1041 is deposited on the display layer 103 and the peripheral area 120 of the substrate 101; in the peripheral area 120, the preparation of vapor deposition cannot completely cause
  • the first encapsulated inorganic layer 1041 is attached around the organic droplet 130.
  • the first encapsulated inorganic layer 1041 cannot be deposited on the bottom side of the organic droplet 130 in contact with the substrate 101. Therefore, the first encapsulating inorganic layer 1041 forms a plurality of inorganic layer segments 1041a on the substrate 101, and the inorganic layer segments 1041a are located between adjacent organic droplets 130, and on the surface of the organic droplets 130 A refractive segment 105 is formed.
  • the refraction segment 105 does not completely cover the organic droplet 130, and the refraction segment 105 is disconnected at the bottom of the organic droplet 130, so that it is not connected to the inorganic layer segment 1041a.
  • the material of the first encapsulating inorganic layer 1041 includes silicon nitride or silicon oxide, and the first encapsulating inorganic layer 1041 is hydrophobic.
  • the first encapsulated inorganic layer 1041 is prepared by processes such as atomic layer deposition, pulsed laser deposition, magnetron sputtering, and chemical vapor deposition.
  • the material of the first encapsulated inorganic layer 1041 includes silicon nitride or silicon carbonitride.
  • an organic ink is deposited on the first encapsulating inorganic layer 1041, and the organic ink covers the organic droplet 130 and the refraction segment 105, and fills the gap, At the gap, the organic ink and the organic droplet 130 are connected and integrated to form a first encapsulated organic layer 1042 after curing.
  • the edge structure of the organic droplet 130 and the refraction segment 105 forms a barrier wall, so that the flow rate of the organic ink at the edge can be slowed down during printing, which reduces the risk of organic ink overflow.
  • the organic droplet 130 is made of the same material as the organic ink.
  • the present invention provides a display panel 100 and a manufacturing method thereof, by providing a refraction segment 105 in the encapsulation layer 104 of the peripheral area 120 of the display panel 100, and the refraction segment 105 is provided on the first encapsulation organic layer 1042 of the encapsulation layer 104
  • the refraction section 105 is used to make the light 106 of the peripheral area 120 pass through the substrate 101 and pass through the opening to be refracted by the refraction section 105 to the display area 110, so that the display area 110 is close to the periphery.
  • the display brightness of area 120 is improved.
  • the first encapsulated inorganic layer 1041 can be formed on the surface of the organic droplet 130.
  • the structure of the refractive segment 105, and this structure can serve as a barrier when preparing the first encapsulated organic layer 1042 to prevent the overflow of organic ink.

Abstract

本发明提供了一种显示面板及其制备方法，所述显示面板包括基板以及设于基板上的封装层，通过在显示面板外围区的薄膜封装层中设置一折射片段，所述折射片段设于封装层的第一封装有机层中，当所述外围区的光线穿过所述基板时，被所述折射片段的开口折射至所述显示区。进而使得显示区靠近所述外围区地方的显示亮度提高。并且在制备折射片段的结构时，通过先沉积有机液滴在外围区的基板上，然后沉积第一封装无机层，进而可以使第一封装无机层在有机液滴表面形成折射片段的结构，并且该结构在制备第一封装有机层的时候可以作为挡墙的作用，防止有机墨水的溢出。

Description

显示面板及其制备方法 技术领域
本发明涉及显示技术领域，特别是一种显示面板及其制备方法。
 背景技术
OLED（有机发光二极管）器件具有结构简单、响应速度快、主动发光、低功耗等优点，在手机、平板、电视等显示领域已经有了广泛的应用。随着产品差异化的发展，可挠曲、折叠屏已经成为一种趋势。
 技术问题
其中，曲面屏的设计已经在很多产品上采用，但是由于边缘的设计使得面板边缘亮度和色准都比不上中间区域，造成视觉上的观感不佳。
因此，急需提供一种新的显示面板，可以解决现有技术中显示面板显示区的边缘观感不佳等问题。
 技术解决方案
本发明的目的是，本发明提供了一种显示面板及其制备方法，通过在显示面板外围区的薄膜封装层中设置一折射片段，所述折射片段设于封装层的第一封装有机层中，所述折射片段用以使所述外围区的光线通过所述基板经过所述开口被所述折射片段折射向所述显示区，进而使得显示区靠近所述外围区地方的显示亮度提高。
为解决上述问题，本发明提供一种显示面板，包括：基板，具有显示区以及外围区；薄膜晶体管层，设于所述基板上且对应所述显示区；显示层，设于所述薄膜晶体管层远离所述基板的一侧；封装层，设于所述显示层以及所述基板的外围区上；在所述外围区，所述封装层中具有多个折射片段，所述折射片段具有一开口，所述开口朝向所述基板，当所述外围区的光线穿过所述基板时，被所述折射片段折射至所述显示区。
进一步地，所述折射片段的材料包括氮化硅、氧化硅、氮氧化硅、碳氮化硅、氧化锌或氧化铝。
进一步地，所述封装层包括：第一封装无机层，设于所述显示层以及所述基板的外围区上，在所述外围区，所述第一封装无机层包括多个无机层片段；第一封装有机层，设于所述第一封装无机层上；第二封装无机层，设于所述第一封装有机层远离所述第一封装无机层的一侧；其中，所述折射片段设于所述第一封装有机层中，每个无机层片段设于相邻的折射片段之间。
进一步地，所述折射片段的截面形状包括弧形、线形或方形。
进一步地，透明胶层，设于所述封装层远离所述基板的一侧；所述透明胶层中设有多个球形颗粒。
本发明还提供一种显示面板的制备方法，包括如下步骤：提供一基板，所述基板具有显示区以及外围区；依次形成一薄膜晶体管层以及显示层于所述基板的显示区；形成多个有机液滴于所述基板的外围区上；沉积一第一封装无机层于所述显示层以及所述基板的外围区上，所述第一封装无机层在每两相邻有机液滴之间均形成一无机层片段，而在每个有机液滴表面则形成一折射片段，在所述有机液滴的底部，所述折射片段与所述无机层片段具有一间隙；沉积一有机墨水于所述第一封装无机层上，且所述有机墨水覆盖所述有机液滴以及所述折射片段；沉积一第二封装无机层于所述第一封装有机层远离所述第一封装无机层的一侧。
进一步地，所述有机液滴与所述有机墨水的材料相同。
进一步地，所述有机液滴的直径为1-10um；相邻的有机液滴的间距为1-10um。
进一步地，在所述形成多个有机液滴于所述基板的外围区上的步骤中，通过喷墨打印的方式制备所述有机液滴。
进一步地，在所述沉积一第一封装无机层于所述显示层以及所述基板的外围区上的步骤中，通过脉冲激光沉积、磁控溅镀以及化学的气相沉积的方式制备所述第一封装无机层。
 有益效果
本发明提供了一种显示面板及其制备方法，通过在显示面板外围区的薄膜封装层中设置一折射片段，所述折射片段设于封装层的第一封装有机层中，当所述外围区的光线穿过所述基板时，被所述折射片段的开口折射至所述显示区。进而使得显示区靠近所述外围区地方的显示亮度提高。并且在制备折射片段的结构时，通过先沉积有机液滴在外围区的基板上，然后沉积第一封装无机层，进而可以使第一封装无机层层在有机液滴表面形成折射片段的结构，并且该结构在制备第一封装有机层的时候可以作为挡墙的作用，防止有机墨水的溢出。
 附图说明
图1为由本发明其中一实施例提供的显示面板的结构示意图；
图2为由本发明其中一实施例提供的显示面板的外围区弯折后的结构示意图，其中主要表现出封装层的细部结构；
图3为由本发明其中一实施例提供的基板的外围区的结构示意图，其中有机液滴形成在所述外围区；
图4为由本发明其中一实施例提供的基板的外围区的结构示意图，其中有机液滴以及第一封装无机层形成在所述外围区；
图5为由本发明其中一实施例提供的显示面板的外围区在弯折前的结构示意图
显示面板100；显示区110；外围区120；
基板101；薄膜晶体管层102；显示层103；
封装层104；第一封装无机层1041；第一封装有机层1042；
第二封装无机层1043；无机层片段1041a；折射片段105；
光线106；有机液滴130。
 本发明的实施方式
本申请提供一种实体键盘输入系统、键盘输入方法及存储介质，为使本申请的目的、技术方案及效果更加清楚、明确，以下参照附图并举实施例对本申请进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
如图1所示，本发明其中一实施例提供一种显示面板100，包括：基板101，薄膜晶体管层102，显示层103、以及封装层104。
所述基板101具有显示区110以及外围区120；所述基板101的材料包括聚酰亚胺，用以使所述基板101具有柔性的特性。所述显示面板100会在所述外围区120进行弯折处理。
所述薄膜晶体管层102设于所述基板101上且对应所述显示区110；所述显示层103设于所述薄膜晶体管层102远离所述基板101的一侧；所述薄膜晶体管层102具有多个薄膜晶体管，用以驱动所述显示层103发光显示。
所述封装层104设于所述显示层103以及所述基板101的外围区120上，用以保护所述显示面板100。
如图2所示，所述封装层104包括：第一封装无机层1041、第一封装有机层1042以及第二封装无机层1043。
所述第一封装无机层1041设于所述显示层103以及所述基板101的外围区120上。在所述外围区120，所述第一封装无机层1041包括多个无机层片段1041a。
所述第一封装有机层1042设于所述第一封装无机层1041上；所述第二封装无机层1043设于所述第一封装有机层1042远离所述第一封装无机层1041的一侧。
在所述外围区120，所述封装层104中具有多个折射片段105，具体的讲，所述折射片段105设于所述第一封装有机层1042中。并且，所述折射片段105设于相邻的无机层片段1041a之间。
所述折射片段105的材料包括氮化硅、氧化硅、氮氧化硅、碳氮化硅、氧化锌或氧化铝。
所述折射片段105的截面形状包括弧形、线形或方形。本实施例中，优选为“C”字弧形结构；在其它实施例中，折射片段105的形状为“V”字线性结构。
所述折射片段105具有一开口，所述开口朝向所述基板101，所述折射片段105用以当所述外围区120的光线106穿过所述基板101时，经过所述开口后被所述折射片段105折射至所述显示区110。使得显示区110靠近所述外围区120地方的显示亮度提高。
由于所述折射片段105设于所述第一封装有机层1042中，在显示面板100的外围区120弯折的时候，所述第一封装有机层1042能够让产生的应力得到缓释，减小弯折后失效的风险。
在另一实施例中，本发明显示面板还包括有一透明胶层，未图示。所述透明胶层设于所述封装层104远离所述基板101的一侧；所述透明胶层中设有多个球形颗粒。所述球形颗粒具有高透性，进而可以使外围区120的光线106通过所述基板101经过所述开口被所述折射片段105折射至所述显示区110。使得显示区110靠近所述外围区120地方的显示亮度提高。
本发明还提供一种显示面板的制备方法，在其中一实施例中，所述制备方法包括如下步骤：
S1）如图3所示，提供一基板101，所述基板101具有显示区110以及外围区120。
S2）依次形成一薄膜晶体管层102以及显示层103于所述基板101的显示区110（参照图1所示）。
S3）如图3所示，形成多个有机液滴130于所述基板101的外围区120上；所述有机液滴130的直径为1-10um；相邻的有机液滴130的间距为1-10um。
由于所述有机液滴130具有较大的润湿角，所以有机液滴130的形状会保持稳定，不会扩散。所述有机液滴130的形状包括：球体、椎体或柱体。
在所述形成多个有机液滴130于所述基板101的外围区120的上的步骤中，通过喷墨打印的方式制备所述有机液滴130。
S4）如图4所示，沉积一第一封装无机层1041于所述显示层103以及所述基板101的外围区120上；在所述外围区120，由于气相沉积的制备并不能完全使所述第一封装无机层1041贴附于所述有机液滴130的周围，例如所述第一封装无机层1041无法沉积在所述有机液滴130与所述基板101接触的底侧位置。因而使得所述第一封装无机层1041在基板101上形成多个无机层片段1041a，并且所述无机层片段1041a位于相邻的有机液滴130之间，而在所述有机液滴130表面则形成一折射片段105。
在所述有机液滴130的底部，所述折射片段105与所述无机层片段1041a之间具有一间隙。亦即，所述折射片段105并不是完全包覆所述有机液滴130，所述折射片段105在所述有机液滴130的底部断开，从而未与所述无机层片段1041a连接。
所述第一封装无机层1041的材料包括氮化硅或氧化硅，所述第一封装无机层1041具有疏水性。第一封装无机层1041通过原子层淀积、脉冲激光沉积、磁控溅镀以及化学的气相沉积等工艺制备，所述第一封装无机层1041的材料包括氮化硅或碳氮化硅。
S5）如图5所示，沉积一有机墨水于所述第一封装无机层1041上，且所述有机墨水覆盖所述有机液滴130以及所述折射片段105，并填满所述间隙，在所述间隙处，所述有机墨水与所述有机液滴130连接并融为一体，固化后形成一第一封装有机层1042。
所述有机液滴130以及所述折射片段105的边缘结构形成挡墙，使得有机墨水在打印时能在边缘处流速减慢，降低了有机墨水溢出的风险。
所述有机液滴130与所述有机墨水的材料相同。
S6）沉积一第二封装无机层1043于所述第一封装有机层1042远离所述第一封装无机层1041的一侧，第二封装无机层1043通过原子层淀积、脉冲激光沉积、磁控溅镀以及化学的气相沉积等工艺制备。最后经过弯折处理形成如图2所示的结构图。
本发明提供了一种显示面板100及其制备方法，通过在显示面板100外围区120的封装层104中设置一折射片段105，所述折射片段105设于封装层104的第一封装有机层1042中，所述折射片段105用以使所述外围区120的光线106通过所述基板101经过所述开口被所述折射片段105折射至所述显示区110，进而使得显示区110靠近所述外围区120地方的显示亮度提高。并且在制备折射片段的结构时，通过先沉积有机液滴130在基板101的外围区120上，然后沉积第一封装无机层1041，进而可以使第一封装无机层1041在有机液滴130表面形成折射片段105的结构，并且该结构在制备第一封装有机层1042的时候可以作为挡墙的作用，防止有机墨水的溢出。
可以理解的是，对本领域普通技术人员来说，可以根据本申请的技术方案及其发明构思加以等同替换或改变，而所有这些改变或替换都应属于本申请所附的权利要求的保护范围。

Claims (10)

  1.    一种显示面板，其中，包括：
    基板，具有显示区以及外围区；
    薄膜晶体管层，设于所述基板上且对应所述显示区；
    显示层，设于所述薄膜晶体管层远离所述基板的一侧；
    封装层，设于所述显示层以及所述基板的外围区上；
    在所述外围区，所述封装层中具有多个折射片段，每一折射片段均具有一开口，所述开口朝向所述基板，当所述外围区的光线穿过所述基板时，被所述折射片段折射至所述显示区。
  2.    根据权利要求1所述的显示面板，其中，
    所述折射片段的材料包括氮化硅、氧化硅、氮氧化硅、碳氮化硅、氧化锌或氧化铝。
  3.    根据权利要求1所述的显示面板，其中，
    所述封装层包括：
    第一封装无机层，设于所述显示层以及所述基板的外围区上，在所述外围区，所述第一封装无机层包括多个无机层片段；
    第一封装有机层，设于所述第一封装无机层上；
    第二封装无机层，设于所述第一封装有机层远离所述第一封装无机层的一侧；
    其中，所述折射片段设于所述第一封装有机层中，每个无机层片段位于相邻的折射片段之间。
  4.    根据权利要求1所述的显示面板，其中，
    所述折射片段的截面形状包括弧形、线形或方形。
  5.    根据权利要求1所述的显示面板，其中，还包括：
    透明胶层，设于所述封装层远离所述基板的一侧；
    所述透明胶层中设有多个球形颗粒。
  6.    一种显示面板的制备方法，其中，包括如下步骤：
    提供一基板，所述基板具有显示区以及外围区；
    依次形成一薄膜晶体管层以及显示层于所述基板的显示区；
    形成多个有机液滴于所述基板的外围区上；
    沉积一第一封装无机层于所述显示层以及所述基板的外围区上，所述第一封装无机层在每两相邻的有机液滴之间均形成一无机层片段，而在每个有机液滴表面则形成一折射片段，在所述有机液滴的底部，所述折射片段与所述无机层片段具有一间隙；
    沉积一有机墨水于所述第一封装无机层上，且所述有机墨水覆盖所述有机液滴以及所述折射片段并填满所述间隙，固化后形成一第一封装有机层；
    沉积一第二封装无机层于所述第一封装有机层远离所述第一封装无机层的一侧。
  7.    根据权利要求6所述的显示面板的制备方法，其中，
    所述有机液滴与所述有机墨水的材料相同。
  8.    根据权利要求6所述的显示面板的制备方法，其中，
    所述有机液滴的直径为1-10um；
    相邻的有机液滴的间距为1-10um。
  9.    根据权利要求6所述的显示面板的制备方法，其中
    在所述形成多个有机液滴于所述基板的外围区上的步骤中，
    通过喷墨打印的方式制备所述有机液滴。
  10.   根据权利要求6所述的显示面板的制备方法，其中
    在所述沉积一第一封装无机层于所述显示层以及所述基板的外围区上的步骤中，通过脉冲激光沉积、磁控溅镀以及化学的气相沉积的方式制备所述第一封装无机层。
PCT/CN2020/075763 2019-12-04 2020-02-18 显示面板及其制备方法 WO2021109339A1 (zh)

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