WO2020244212A1 - 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
WO2020244212A1
WO2020244212A1 PCT/CN2019/128930 CN2019128930W WO2020244212A1 WO 2020244212 A1 WO2020244212 A1 WO 2020244212A1 CN 2019128930 W CN2019128930 W CN 2019128930W WO 2020244212 A1 WO2020244212 A1 WO 2020244212A1
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WIPO (PCT)
Prior art keywords
scattering particles
emitting device
scattering
display panel
light emitting
Prior art date
Application number
PCT/CN2019/128930
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English (en)
French (fr)
Inventor
宋江江
Original Assignee
Tcl华星光电技术有限公司
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
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Application filed by Tcl华星光电技术有限公司 filed Critical Tcl华星光电技术有限公司
Priority to US16/627,824 priority Critical patent/US20210336222A1/en
Publication of WO2020244212A1 publication Critical patent/WO2020244212A1/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
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/85—Arrangements for extracting light from the devices
    • H10K50/854—Arrangements for extracting light from the devices comprising scattering means
    • 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
    • H10K50/841—Self-supporting sealing arrangements
    • 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
    • H10K50/842—Containers
    • H10K50/8428—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
    • 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
    • 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
    • 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
    • H10K2102/331—Nanoparticles used in non-emissive layers, e.g. in packaging layer
    • 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
    • H10K50/842—Containers
    • H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
    • 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
    • H10K50/846—Passivation; Containers; Encapsulations comprising getter material or desiccants

Definitions

  • This application relates to the field of display technology, in particular to a display panel and a preparation method thereof.
  • OLED Organic Light-Emitting Diode
  • the light extraction efficiency of the existing OLED display panels is generally not high. This is mainly because when light is incident on the interface between the OLED device and the cover plate at an angle greater than the total reflection angle, total reflection of the light occurs, which reduces the luminescence of the OLED device. effectiveness.
  • the main technical problem solved by this application is that when light enters the interface between the OLED device and the cover plate at an angle greater than the total reflection angle, total reflection of the light will occur, which reduces the luminous efficiency of the OLED device.
  • this application provides a display panel, including:
  • a light emitting device the light emitting device is arranged on the substrate;
  • a scattering layer is arranged on the light emitting device, and a plurality of scattering particles are arranged in the scattering layer, and the scattering particles are used to improve the luminous efficiency of the light emitting device;
  • the sealant is arranged on the substrate and arranged around the light emitting device and the scattering layer;
  • a cover plate, the cover plate is arranged on the scattering layer and the sealant;
  • the material of the scattering particles includes titanium dioxide and a magnetic material
  • the structure of the scattering particles is a core-shell structure
  • the core-shell structure includes an inner core and a shell covering the inner core
  • the inner core material is magnetic Material
  • the material of the shell is titanium dioxide.
  • the scattering layer includes a liquid desiccant, and a plurality of the scattering particles are arranged in the liquid desiccant and close to one side of the cover plate.
  • a plurality of the scattering particles are distributed in an array.
  • the substrate includes a central area and an edge area surrounding the central area;
  • the number of the scattering particles corresponding to the unit area provided on the edge region is greater than the number of the scattering particles corresponding to the unit area provided on the central region.
  • the scattering particles include first scattering particles and second scattering particles, a plurality of the first scattering particles are correspondingly arranged on the central area, and a plurality of the second scattering particles Correspondingly arranged on the edge area;
  • a plurality of the first scattering particles are arranged at intervals
  • a plurality of the second scattering particles are arranged at intervals
  • a plurality of the second scattering particles surround the plurality of first scattering particles.
  • this application provides a display panel, including:
  • a light emitting device the light emitting device is arranged on the substrate;
  • a scattering layer is arranged on the light emitting device, and a plurality of scattering particles are arranged in the scattering layer, and the scattering particles are used to improve the luminous efficiency of the light emitting device;
  • the sealant is arranged on the substrate and arranged around the light emitting device and the scattering layer;
  • the cover plate is arranged on the scattering layer and the sealant.
  • the scattering layer includes a liquid desiccant, and a plurality of the scattering particles are arranged in the liquid desiccant and close to one side of the cover plate.
  • a plurality of the scattering particles are distributed in an array.
  • the substrate includes a central area and an edge area surrounding the central area;
  • the number of the scattering particles corresponding to the unit area provided on the edge region is greater than the number of the scattering particles corresponding to the unit area provided on the central region.
  • the scattering particles include first scattering particles and second scattering particles, a plurality of the first scattering particles are correspondingly arranged on the central area, and a plurality of the second scattering particles Correspondingly arranged on the edge area;
  • a plurality of the first scattering particles are arranged at intervals
  • a plurality of the second scattering particles are arranged at intervals
  • a plurality of the second scattering particles surround the plurality of first scattering particles.
  • the material of the scattering particles includes titanium dioxide and magnetic materials.
  • the structure of the scattering particles is a core-shell structure, and the core-shell structure includes a core and a shell covering the core;
  • the material of the inner core is a magnetic material
  • the material of the outer shell is titanium dioxide
  • the present application provides a method for manufacturing a display panel, including:
  • the substrate including a first area and a second area surrounding the first area;
  • the mixed solution including a plurality of scattering particles, and the scattering particles are used to improve the light extraction efficiency of the light emitting device;
  • the method before the cover plate is attached to the sealant, after the pre-prepared mixed solution is applied to the surface of the light emitting device, the method further includes :
  • the mixed solution is processed to move a plurality of scattering particles of the mixed solution to a preset position.
  • the processing the mixed solution to move the multiple scattering particles of the mixed solution to a preset position includes:
  • the magnetic field is used to process the mixed solution, so that a plurality of scattering particles of the mixed solution move to a preset position.
  • the beneficial effect of the present application is that the luminous efficiency of the light-emitting device can be improved.
  • FIG. 1 is a schematic structural diagram of a first embodiment of a display panel provided by this application.
  • FIG. 2 is a schematic plan view of the first embodiment of the display panel shown in FIG. 1;
  • FIG. 3 is a schematic plan view of a second embodiment of the display panel shown in FIG. 1;
  • FIG. 4 is a schematic diagram of the structure of the scattering particles provided by this application.
  • FIG. 5 is a schematic flow chart of the method for manufacturing the display panel provided by this application.
  • FIG. 1 is a schematic structural diagram of a first embodiment of a display panel provided by this application.
  • the present application provides a display panel 1 including a substrate 10, a light emitting device 20, a scattering layer 30, a sealant 40 and a cover 50.
  • the light emitting device 20 is arranged on the substrate 10, the scattering layer 30 is arranged on the light emitting device 20, and a plurality of scattering particles 60 are arranged in the scattering layer 30.
  • the scattering particles 60 are used to improve the luminous efficiency of the light emitting device.
  • the sealant 40 is arranged on The substrate 10 is arranged around the light emitting device 20 and the scattering layer 30, and the cover plate is arranged on the scattering layer 30 and the sealant 40.
  • the substrate 10 may be a flexible substrate or a rigid substrate.
  • the light-emitting device 20 may include various circuit structures according to actual needs.
  • the scattering layer 30 is arranged on the surface of the light-emitting device 20 in the light-emitting direction.
  • the sealant 40 may be an ultraviolet curing adhesive, and the scattering layer 30 A plurality of scattering particles 60 are arranged inside. After the light emitted by the light emitting device 20 passes through the scattering layer 30, the scattering particles 60 will refract the light emitted by the light emitting device 20, so as to reduce the light emitted by the light emitting device 20 on the cover 30 and emit light. The total reflection between the devices 20 further improves the luminous efficiency of the light-emitting device 20.
  • the scattering layer 30 includes a liquid desiccant, and a plurality of scattering particles 60 are arranged in the liquid desiccant and close to one side of the cover plate 50.
  • the liquid desiccant may be epoxy resin.
  • the scattering layer 30 is set as a liquid desiccant, and the multiple scattering particles 60 are close to one side of the cover plate 50, which can further reduce the light emitted by the light emitting device 20 between the cover plate 30 and the light emitting device 20. Therefore, the light emitting efficiency of the light emitting device can be further improved, and the scattering layer 30 can also be used to absorb water and oxygen to prevent water oxygen from entering the light emitting device 20, causing the light emitting device 20 to fail. Therefore, the display panel is improved.
  • the arrangement of the plurality of scattering particles 60 may be determined according to the arrangement of pixels in the display panel 1. For example, a plurality of pixels in the display panel 1 are distributed in an array, a plurality of scattering particles 60 may form a plurality of scattering particle sets 600 distributed in an array, and each scattering particle set 600 includes a plurality of scattering particles 60 distributed in an array. , And each scattering particle set 600 corresponds to a pixel, that is, in some embodiments, a plurality of scattering particles 60 are distributed in an array, as shown in FIG. 2.
  • FIG. 3 is a schematic plan view of the second embodiment of the display panel shown in FIG. 1.
  • the present application also provides a display panel 1.
  • the substrate 10 includes a central area 101 and an edge area 102 surrounding the central area 101.
  • the number of scattering particles 60 corresponding to a unit area provided on the edge region 102 is greater than the number of scattering particles 60 corresponding to a unit area provided on the central region 101.
  • the brightness of its face center will be greater than the brightness of the surrounding area, that is, the brightness of the central area 101 is greater than the brightness of the edge area 102.
  • the edge area 102 can be The density of the scattering particles 60 is set to be greater than the density of the scattering particles 60 on the central area 101, where the density refers to the number per unit area, that is, the number of scattering particles 60 corresponding to the unit area provided on the edge area 102 It is greater than the number of scattering particles 60 corresponding to the unit area provided on the central area 101.
  • the scattering particles 60 include first scattering particles 601 and second scattering particles 602, a plurality of first scattering particles 601 are correspondingly arranged on the central area 101, and a plurality of second scattering particles 602 are correspondingly arranged on the edge On area 102.
  • the plurality of first scattering particles 601 are arranged at intervals
  • the plurality of second scattering particles 602 are arranged at intervals
  • the plurality of second scattering particles 601 surround the plurality of first scattering particles 601.
  • FIG. 4 is a schematic diagram of the structure of the scattering particles provided by this application.
  • the materials of the scattering particles 60 include titanium dioxide and magnetic materials.
  • the structure of the scattering particles 60 is a core-shell structure, and the core-shell structure includes an inner core 61 and an outer shell 62 covering the inner core 61.
  • the material of the inner core 61 is a magnetic material
  • the material of the outer shell 62 is titanium dioxide.
  • the position of the scattering particles 60 in the scattering layer 30 can be controlled according to actual conditions, and the light emitted by the light emitting device 20 passes through the scattering layer 30 After 30, these scattering particles 60 will refract the light emitted by the light-emitting device 20, so as to reduce the total reflection of the light emitted by the light-emitting device 20 between the cover plate 30 and the light-emitting device 20, thereby improving the luminescence of the light-emitting device 20. effectiveness.
  • FIG. 5 is a schematic flow chart of the method for manufacturing the display panel provided by this application.
  • This application provides a method for manufacturing a display panel, including:
  • the substrate may be a flexible substrate or a rigid substrate.
  • the substrate is a rigid substrate.
  • a light emitting device and a sealant are formed on a predetermined area of the substrate, the sealant is arranged around the light emitting device, and the height of the sealant to the substrate is greater than the height of the light emitting device to the substrate.
  • the light emitting device may include an anode, an organic light emitting layer, a cathode, and so on.
  • the mixed solution includes liquid desiccant and scattering particles.
  • the scattering particles are used to improve the light extraction efficiency of the light emitting device.
  • the structure of the scattering particles please refer to the previous embodiments.
  • the mixed solution is dripped on the light-emitting device. Since the sealant is arranged around the light-emitting device, the sealant can play a role as a limiter.
  • the position of the scattering particles can also be adjusted after the instillation of the mixed solution is completed, that is, in some embodiments, the cover plate is attached
  • the method further includes: processing the mixed solution to move a plurality of scattering particles of the mixed solution to a preset position.
  • the scattering particles are made of titanium dioxide as the shell and the magnetic material is the core-shell structure of the core. Therefore, the position of the scattering particles in the scattering layer can be adjusted by a magnetic field. That is, in some embodiments, the mixed solution is processed to make The movement of multiple scattering particles of the mixed solution to a preset position may include:
  • the mixed solution is processed by a magnetic field, so that a plurality of scattering particles of the mixed solution move to a preset position.
  • the bonding method can be hard or soft, depending on the actual situation.
  • the sealant and the mixed solution are cured, so that the mixed solution is cured on the light-emitting device to form a scattering layer.
  • the thickness of the scattering layer and the particle size of the scattering particles in the scattering layer are different, so that the light extraction efficiency is different. Please refer to Table 1 for details.
  • control group in Table 1 is a conventional display panel, that is, a display panel without scattering particles.
  • the present application provides a method for manufacturing a display panel, including providing a substrate, forming a light-emitting device and a sealant on the substrate, applying a pre-prepared mixed solution to the surface of the light-emitting device, and attaching a cover plate to the sealant, The sealant and the mixed solution are cured to form a scattering layer on the light-emitting device.
  • a plurality of scattering particles are arranged in the scattering layer. The scattering particles will refract the light emitted by the light-emitting device, so as to reduce the total reflection of the light emitted by the light-emitting device between the cover plate and the light-emitting device, thereby improving the luminescence.
  • the luminous efficiency of the device including providing a substrate, forming a light-emitting device and a sealant on the substrate, applying a pre-prepared mixed solution to the surface of the light-emitting device, and attaching a cover plate to the sealant, The sealant and the mixed solution

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electroluminescent Light Sources (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

一种显示面板及其制备方法，显示面板（1）包括：基板（10）；发光器件（20），发光器件（20）设置在所述基板（10）上；散射层（30），散射层（30）设置在发光器件（20）上，散射层（30）内设置有多个散射颗粒（60），散射颗粒（60）用于提高发光器件（20）的发光效率；框胶（40），框胶（40）设置在基板（10）上，并围绕发光器件（20）以及散射层（30）设置；盖板（50），盖板（50）设置在所述散射层（30）以及框胶（40）上。

Description

显示面板及其制备方法 技术领域
本申请涉及显示技术领域，具体涉及一种显示面板及其制备方法。
 背景技术
有机发光二极管（Organic Light-Emitting Diode， OLED）)因其低启动电压，轻薄以及自发光等自身的特点，被广泛应用于显示面板中，以满足低能耗、轻薄和面光源等需求。
但是，现有的OLED显示面板的出光效率普遍不高，这主要是由于当光线以大于全反射角入射到OLED器件与盖板的界面时，会发生光的全反射，降低了OLED器件的发光效率。
 技术问题
本申请主要解决的技术问题，当光线以大于全反射角入射到OLED器件与盖板的界面时，会发生光的全反射，降低了OLED器件的发光效率。
 技术解决方案
第一方面，本申请提供了一种显示面板，包括：
基板；
发光器件，所述发光器件设置在所述基板上；
散射层，所述散射层设置在所述发光器件上，所述散射层内设置有多个散射颗粒，所述散射颗粒用于提高所述发光器件的发光效率；
框胶，所述框胶设置在所述基板上，并围绕所述发光器件以及所述散射层设置；
盖板，所述盖板设置在所述散射层以及所述框胶上；
其中，所述散射颗粒的材料包括二氧化钛以及磁性材料，所述散射颗粒的结构为核壳结构，所述核壳结构包括内核以及包覆在所述内核上的外壳，所述内核的材料为磁性材料，所述外壳的材料为二氧化钛。
在本申请所提供的显示面板中，所述散射层包括液态干燥剂，多个所述散射颗粒设置在所述液态干燥剂内，且靠近所述盖板的一侧。
在本申请所提供的显示面板中，多个所述散射颗粒呈阵列分布。
在本申请所提供的显示面板中，所述基板包括中心区域以及围绕所述中心区域的边缘区域；
其中，对应设置在所述边缘区域上的单位面积的所述散射颗粒的数量大于对应设置在所述中心区域上的单位面积的所述散射颗粒的数量。
在本申请所提供的显示面板中，所述散射颗粒包括第一散射颗粒和第二散射颗粒，多个所述第一散射颗粒对应设置在所述中心区域上，多个所述第二散射颗粒对应设置在所述边缘区域上；
其中，多个所述第一散射颗粒间隔排布，多个所述第二散射颗粒间隔排布，且多个所述第二散射颗粒围绕多个所述第一散射颗粒。
第二方面，本申请提供了一种显示面板，包括：
基板；
发光器件，所述发光器件设置在所述基板上；
散射层，所述散射层设置在所述发光器件上，所述散射层内设置有多个散射颗粒，所述散射颗粒用于提高所述发光器件的发光效率；
框胶，所述框胶设置在所述基板上，并围绕所述发光器件以及所述散射层设置；
盖板，所述盖板设置在所述散射层以及所述框胶上。
在本申请所提供的显示面板中，所述散射层包括液态干燥剂，多个所述散射颗粒设置在所述液态干燥剂内，且靠近所述盖板的一侧。
在本申请所提供的显示面板中，多个所述散射颗粒呈阵列分布。
在本申请所提供的显示面板中，所述基板包括中心区域以及围绕所述中心区域的边缘区域；
其中，对应设置在所述边缘区域上的单位面积的所述散射颗粒的数量大于对应设置在所述中心区域上的单位面积的所述散射颗粒的数量。
在本申请所提供的显示面板中，所述散射颗粒包括第一散射颗粒和第二散射颗粒，多个所述第一散射颗粒对应设置在所述中心区域上，多个所述第二散射颗粒对应设置在所述边缘区域上；
其中，多个所述第一散射颗粒间隔排布，多个所述第二散射颗粒间隔排布，且多个所述第二散射颗粒围绕多个所述第一散射颗粒。
在本申请所提供的显示面板中，所述散射颗粒的材料包括二氧化钛以及磁性材料。
在本申请所提供的显示面板中，所述散射颗粒的结构为核壳结构，所述核壳结构包括内核以及包覆在所述内核上的外壳；
其中，所述内核的材料为磁性材料，所述外壳的材料为二氧化钛。
第三方面，本申请提供一种显示面板的制备方法，包括：
提供一基板，所述基板包括第一区域以及包围所述第一区域的第二区域；
在所述第一区域上形成发光器件，并在所述第二区域上形成框胶；
将预先制备的混合溶液涂敷至所述发光器件的表面上，所述混合溶液包括多个散射颗粒，所述散射颗粒用于提高所述发光器件的光提取效率；
将盖板贴合至所述框胶上；
固化所述框胶以及混合溶液，以在所述发光器件上形成散射层。
在本申请所提供的显示面板的制备方法中，所述将盖板贴合至所述框胶上之前，所述将预先制备的混合溶液涂敷至所述发光器件的表面上之后，还包括：
对所述混合溶液进行处理，以使所述混合溶液多个散射颗粒移动至预设位置。
在本申请所提供的显示面板的制备方法中，所述对所述混合溶液进行处理，以使所述混合溶液多个散射颗粒移动至预设位置，包括：
将所述基板放置于一磁场中；
利用所述磁场对所述混合溶液进行处理，以使所述混合溶液多个散射颗粒移动至预设位置。
 有益效果
本申请的有益效果是：能够提高发光器件的发光效率。
 附图说明
为了更清楚地说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介绍，显而易见地，下面描述中的附图仅仅是申请的一些实施例，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为本申请提供的显示面板的第一种实施方式的结构示意图；
图2为图1所示的显示面板的第一种实施方式的平面示意图；
图3为图1所示的显示面板的第二种实施方式的平面示意图；
图4为本申请提供的散射颗粒的结构示意图；
图5为本申请提供的显示面板的制备方法的流程示意图。
 本发明的实施方式
下面详细描述本申请的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
请参阅图1，图1为本申请提供的显示面板的第一种实施方式的结构示意图。本申请提供一种显示面板1，包括基板10、发光器件20、散射层30、框胶40以及盖板50。发光器件20设置在基板10上，散射层30设置在发光器件20上，且散射层30内设置有多个散射颗粒60，该散射颗粒60用于提高发光器件的发光效率，框胶40设置在基板10上，并围绕发光器件20以及散射层30设置，盖板设置在散射层30以及框胶40上。
基板10可以为柔性基板或者刚性基板，发光器件20可以根据实际需求包括各种电路结构，散射层30设置在发光器件20的出光方向的表面上，框胶40可以为紫外固化胶，散射层30内设置有多个散射颗粒60，发光器件20发出的光线通过散射层30后，散射颗粒60会使发光器件20发出的光线发生折射，达到减小发光器件20发出的光线在盖板30与发光器件20之间发生的全反射，进而提高了发光器件20的发光效率。
在一些实施例中，散射层30包括液态干燥剂，多个散射颗粒60设置在液态干燥剂内，且靠近盖板50的一侧。该液态干燥剂可以为环氧树脂。另外，需要说明的是，将散射层30设置为液态干燥剂，且多个散射颗粒60靠近盖板50的一侧，可以进一步减小发光器件20发出的光线在盖板30与发光器件20之间发生的全反射，因此可以进一步提高发光器件的发光效率，并且，该散射层30还可以用于吸收水氧，防止水氧进入发光器件20，导致发光器件20失效，因此，提高了显示面板1的产品良率。
多个散射颗粒60呈的排布方式可以根据显示面板1中像素的排布方式而定。比如，在显示面板1中的多个像素呈阵列分布，多个散射颗粒60可以形成多个呈阵列分布的散射颗粒集合600，每个散射颗粒集合600均包括多个呈阵列分布的散射颗粒60，且每个散射颗粒集合600均对应一个像素，即，在一些实施例中，多个散射颗粒60呈阵列分布，如图2所示。
在一些实施例中，请参阅图3，图3为图1所示的显示面板的第二种实施方式的平面示意图。本申请还提供一种显示面板1，图3的显示面板1与图2的显示面板1的区别在于：基板10包括中心区域101以及围绕中心区域101的边缘区域102。对应设置在边缘区域102上的单位面积的散射颗粒60的数量大于对应设置在中心区域101上的单位面积的散射颗粒60的数量。对于一般的显示面板而言，其面心的亮度会大于周围区域的亮度，即，中心区域101的亮度大于边缘区域102的亮度，为了提高显示面板1发光的均一性，可以将边缘区域102上的散射颗粒60的密度设置为大于中心区域101上的散射颗粒60的密度，这里的密度指的是单位面积上的数量，即，对应设置在边缘区域102上的单位面积的散射颗粒60的数量大于对应设置在中心区域101上的单位面积的散射颗粒60的数量。
进一步的，请继续参阅图3，散射颗粒60包括第一散射颗粒601和第二散射颗粒602，多个第一散射颗粒601对应设置中心区域101上，多个第二散射颗粒602对应设置在边缘区域102上。多个第一散射颗粒601间隔排布，多个第二散射颗粒602间隔排布，且多个第二散射颗粒601围绕多个第一散射颗粒601。
请参阅图4，图4为本申请提供的散射颗粒的结构示意图。散射颗粒60的材料包括二氧化钛以及磁性材料。进一步的，该散射颗粒60的结构为核壳结构，核壳结构包括内核61以及包覆在内核61上的外壳62。内核61的材料为磁性材料，外壳62的材料为二氧化钛。
通过将二氧化钛外壳62包覆在磁性内核61上，并采用液态干燥剂作为散射层30的主要材料，可以根据实际控制散射颗粒60在散射层30中的位置，发光器件20发出的光线通过散射层30后，这些散射颗粒60会使发光器件20发出的光线发生折射，达到减小发光器件20发出的光线在盖板30与发光器件20之间发生的全反射，进而提高了发光器件20的发光效率。
相应的，请参阅图5，图5为本申请提供的显示面板的制备方法的流程示意图。本申请提供一种显示面板的制备方法，包括：
110、提供一基板。
该基板可以为柔性基板，也可以为刚性基板。比如，该基板为刚性基板。
120、在基板上形成发光器件以及框胶。
在基板的预设区域上形成发光器件以及框胶，框胶围绕该发光器件设置，并且框胶到基板的高度大于发光器件到基板的高度。该发光器件可以包括阳极、有机发光层以及阴极等等。
130、将预先制备的混合溶液涂敷至所述发光器件的表面上。
该混合溶液包括液态干燥剂以及散射颗粒，散射颗粒用于提高发光器件的光提取效率，散射颗粒的结构请参阅前面实施例。实际生产时，在发光器件上滴注混合溶液，由于框胶围绕发光器件设置，因此，框胶可以起到限位的作用。为了进一步减小发光器件发出的光线在盖板与发光器件之间发生的全反射，在混合溶液滴注完成后，还可以调整散射颗粒的位置，即，在一些实施例中，将盖板贴合至框胶上之前，将预先制备的混合溶液涂敷至发光器件的表面上之后，还包括：对混合溶液进行处理，以使混合溶液的多个散射颗粒移动至预设位置。比如，散射颗粒是二氧化钛为外壳，磁性材料为内核的核壳结构，因此，可以通过磁场调整散射颗粒在散射层内的位置，也即，在一些实施例中，对混合溶液进行处理，以使混合溶液的多个散射颗粒移动至预设位置，可以包括：
将基板放置于一磁场中。
利用磁场对混合溶液进行处理，以使混合溶液多个散射颗粒移动至预设位置。
140、将盖板贴合至框胶上。
贴合的方式可以采用硬贴硬或者软贴硬的方式，具体根据实际情况而定。
150、固化框胶以及混合溶液，以在发光器件上形成散射层。
采用紫外固化的方式，固化框胶以及混合溶液，使得混合溶液在发光器件上固化，形成散射层。需要说明的是，散射层的厚度和散射层中散射颗粒的粒径不同，从而使其对光提取效率有所不同，具体请参见表1。
  散射层厚度/微米 散射层中颗粒粒径/微米 光提取效率/百分比
实验组1 15 8 28
实验组2 20 8 18
实验组3 5 7 15
实验组4 8 8 10
实验组5 10 12 11
实验组6 12 10 11
实验组7 12 10 9
对照组     3
表1
需要说明的是，表1中的对照组为常规的显示面板，即，没有设置散射颗粒的显示面板。
本申请提供一种显示面板制备方法，包括提供一基板，在基板上形成发光器件以及框胶，将预先制备的混合溶液涂敷至发光器件的表面上，将盖板贴合至框胶上，固化框胶以及混合溶液，以在发光器件上形成散射层。本申请通过在散射层内设置多个散射颗粒，散射颗粒会使发光器件发出的光线发生折射，达到减小发光器件发出的光线在盖板与发光器件之间发生的全反射，进而提高了发光器件的发光效率。
以上对本申请实施例提供的显示面板及其制备方法进行了详细介绍，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。同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (15)

  1. 一种显示面板，其包括：
    基板；
    发光器件，所述发光器件设置在所述基板上；
    散射层，所述散射层设置在所述发光器件上，所述散射层内设置有多个散射颗粒，所述散射颗粒用于提高所述发光器件的发光效率；
    框胶，所述框胶设置在所述基板上，并围绕所述发光器件以及所述散射层设置；
    盖板，所述盖板设置在所述散射层以及所述框胶上；
    其中，所述散射颗粒的材料包括二氧化钛以及磁性材料，所述散射颗粒的结构为核壳结构，所述核壳结构包括内核以及包覆在所述内核上的外壳，所述内核的材料为磁性材料，所述外壳的材料为二氧化钛。
  2. 根据权利要求1所述的显示面板，其中，所述散射层包括液态干燥剂，多个所述散射颗粒设置在所述液态干燥剂内，且靠近所述盖板的一侧。
  3. 根据权利要求2所述的显示面板，其中，多个所述散射颗粒呈阵列分布。
  4. 根据权利要求3所述的显示面板，其中，所述基板包括中心区域以及围绕所述中心区域的边缘区域；
    其中，对应设置在所述边缘区域上的单位面积的所述散射颗粒的数量大于对应设置在所述中心区域上的单位面积的所述散射颗粒的数量。
  5. 根据权利要求4所述的显示面板，其中，所述散射颗粒包括第一散射颗粒和第二散射颗粒，多个所述第一散射颗粒对应设置在所述中心区域上，多个所述第二散射颗粒对应设置在所述边缘区域上；
    多个所述第一散射颗粒间隔排布，多个所述第二散射颗粒间隔排布，且多个所述第二散射颗粒围绕多个所述第一散射颗粒。
  6. 一种显示面板，其包括：
    基板；
    发光器件，所述发光器件设置在所述基板上；
    散射层，所述散射层设置在所述发光器件上，所述散射层内设置有多个散射颗粒，所述散射颗粒用于提高所述发光器件的发光效率；
    框胶，所述框胶设置在所述基板上，并围绕所述发光器件以及所述散射层设置；
    盖板，所述盖板设置在所述散射层以及所述框胶上。
  7. 根据权利要求6所述的显示面板，其中，所述散射层包括液态干燥剂，多个所述散射颗粒设置在所述液态干燥剂内，且靠近所述盖板的一侧。
  8. 根据权利要求7所述的显示面板，其中，多个所述散射颗粒呈阵列分布。
  9. 根据权利要求8所述的显示面板，其中，所述基板包括中心区域以及围绕所述中心区域的边缘区域；
    其中，对应设置在所述边缘区域上的单位面积的所述散射颗粒的数量大于对应设置在所述中心区域上的单位面积的所述散射颗粒的数量。
  10. 根据权利要求9所述的显示面板，其中，所述散射颗粒包括第一散射颗粒和第二散射颗粒，多个所述第一散射颗粒对应设置在所述中心区域上，多个所述第二散射颗粒对应设置在所述边缘区域上；
    多个所述第一散射颗粒间隔排布，多个所述第二散射颗粒间隔排布，且多个所述第二散射颗粒围绕多个所述第一散射颗粒。
  11. 根据权利要求6所述的显示面板，其中，所述散射颗粒的材料包括二氧化钛以及磁性材料。
  12. 根据权利要求11所述的显示面板，其中，所述散射颗粒的结构为核壳结构，所述核壳结构包括内核以及包覆在所述内核上的外壳；
    所述内核的材料为磁性材料，所述外壳的材料为二氧化钛。
  13. 一种显示面板的制备方法，其包括：
    提供一基板；
    在所述基板上形成发光器件以及框胶；
    将预先制备的混合溶液涂敷至所述发光器件的表面上，所述混合溶液包括多个散射颗粒，所述散射颗粒用于提高所述发光器件的光提取效率；
    将盖板贴合至所述框胶上；
    固化所述框胶以及混合溶液，以在所述发光器件上形成散射层。
  14. 根据权利要求13所述的制备方法，其中，所述将盖板贴合至所述框胶上之前，所述将预先制备的混合溶液涂敷至所述发光器件的表面上之后，还包括：
    对所述混合溶液进行处理，以使所述混合溶液多个散射颗粒移动至预设位置。
  15. 根据权利要求14所述的制备方法，其中，所述对所述混合溶液进行处理，以使所述混合溶液多个散射颗粒移动至预设位置，包括：
    将所述基板放置于一磁场中；
    利用所述磁场对所述混合溶液进行处理，以使所述混合溶液多个散射颗粒移动至预设位置。
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