WO2019205342A1 - Oled封装结构及oled显示面板 - Google Patents

Oled封装结构及oled显示面板 Download PDF

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Publication number
WO2019205342A1
WO2019205342A1 PCT/CN2018/099133 CN2018099133W WO2019205342A1 WO 2019205342 A1 WO2019205342 A1 WO 2019205342A1 CN 2018099133 W CN2018099133 W CN 2018099133W WO 2019205342 A1 WO2019205342 A1 WO 2019205342A1
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Prior art keywords
oled
zinc
containing metal
package structure
metal organic
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PCT/CN2018/099133
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English (en)
French (fr)
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彭哲玮
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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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Priority to US16/087,651 priority Critical patent/US20190334124A1/en
Publication of WO2019205342A1 publication Critical patent/WO2019205342A1/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
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/846—Passivation; Containers; Encapsulations comprising getter material or desiccants
    • 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

Definitions

  • the present invention relates to the field of display technologies, and in particular, to an OLED package structure and an OLED display panel.
  • OLED Organic Light Emitting Diode
  • OLED display devices do not require a background light source, and different colors of light can be obtained by applying a voltage to different organic material coatings.
  • an inorganic material is used to absorb moisture inside the OLED display panel, resulting in an increase in the thickness of the OLED package structure and the OLED display panel.
  • an OLED package structure includes: a package substrate; and a dry layer for absorbing water oxygen disposed on a surface of the package substrate;
  • the preparation material of the dry layer is a zinc-containing metal organic skeleton compound
  • the zinc-containing metal organic skeleton compound is a porous structure
  • the structural unit of the zinc-containing metal organic skeleton compound is ZnO 4 (BDC) 3 .
  • the zinc-containing metal organic skeleton compound has a specific surface area of from 2,900 square meters per gram to 3,362 square meters per gram.
  • the zinc-containing metal organic skeleton compound is formed by a zinc bond and an organic ligand para-dicarboxylic acid through a coordination bond.
  • the package substrate is a glass substrate, an edge portion of the periphery of the glass substrate is a convex portion, the dry layer is disposed on a surface of the glass substrate, and the convex portion surrounds the Dry layer.
  • an OLED display panel comprising:
  • OLED light emitting layer the OLED light emitting layer being disposed on a surface of the thin film transistor substrate;
  • OLED package structure the OLED package structure is disposed above the OLED light emitting layer, and the OLED package structure and the thin film transistor substrate form a closed cavity to protect the OLED light emitting layer;
  • the sealant is disposed on an edge region of the thin film transistor substrate for bonding the thin film transistor substrate and the OLED package structure;
  • the OLED package structure includes: a package substrate; and a dry layer for absorbing water and oxygen disposed on a surface of the package substrate, the dry layer being disposed on a side of the package substrate adjacent to the light-emitting layer;
  • the preparation material of the dried layer is a zinc-containing metal organic skeleton compound, and the zinc-containing metal organic skeleton compound has a porous structure.
  • the zinc-containing metal organic skeleton compound has a specific surface area of from 2,900 square meters per gram to 3,362 square meters per gram.
  • the zinc-containing metal organic skeleton compound is formed by a zinc bond and an organic ligand para-dicarboxylic acid through a coordination bond.
  • the structural unit of the zinc-containing metal organic skeleton compound is ZnO 4 (BDC) 3 .
  • the package substrate is a glass substrate, an edge portion of the periphery of the glass substrate is a convex portion, the dry layer is disposed on a surface of the glass substrate, and the convex portion surrounds the a drying layer, the frame sealant bonding the raised portion to the thin film transistor substrate.
  • an OLED package structure includes: a package substrate; and a dry layer for absorbing water oxygen disposed on a surface of the package substrate;
  • the preparation material of the dry layer is a zinc-containing metal organic skeleton compound, and the zinc-containing metal organic skeleton compound has a porous structure.
  • the zinc-containing metal organic skeleton compound has a specific surface area of from 2,900 square meters per gram to 3,362 square meters per gram.
  • the zinc-containing metal organic skeleton compound is formed by a zinc bond and an organic ligand para-dicarboxylic acid through a coordination bond.
  • the package substrate is a glass substrate, an edge portion of the periphery of the glass substrate is a convex portion, the dry layer is disposed on a surface of the glass substrate, and the convex portion surrounds the Dry layer.
  • An advantage of the present invention is to provide an OLED package structure and an OLED display panel.
  • the preparation material of the dry layer in the package structure is a zinc-containing metal organic skeleton compound, and the effect of ensuring the moisture absorption of the dry layer is reduced.
  • the thickness of the dried layer further reduces the thickness of the OLED package structure and the OLED display panel, and ensures the uniformity of the organic electroluminescent device film layer to improve the display efficiency of the screen.
  • FIG. 1 is a schematic structural view of an OLED display panel in the prior art
  • FIG. 2 is a schematic structural diagram of an OLED package structure according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of an OLED display panel according to an embodiment of the present invention.
  • the present invention provides an OLED package structure and an OLED display panel by using an inorganic material to absorb the moisture inside the OLED display panel, which leads to an increase in the thickness of the OLED package structure and the OLED display panel.
  • This embodiment can improve the OLED package structure and the OLED display panel. defect.
  • FIG. 1 and 2 are schematic structural views of an OLED package structure according to an embodiment of the present invention
  • FIG. 3 is a schematic structural view of an OLED display panel according to an embodiment of the present invention.
  • the present invention provides an OLED package structure
  • the OLED package structure includes: a package substrate 211 and a dry layer 212 for absorbing water and oxygen disposed on a surface of the package substrate;
  • the preparation material of the dry layer 212 is a Zn-contained metal organic framework (Zn-MOF), and the zinc-containing metal organic skeleton compound Zn-MOF has a porous structure.
  • Zn-MOF Zn-contained metal organic framework
  • the zinc-containing metal organic skeleton compound Zn-MOF in the present invention is a novel porous material, and the zinc-containing metal organic skeleton compound Zn-MOF has a large specific surface area, and the dry layer prepared by the material is further prepared. With the same volume of 212, 212 can provide a contact surface that is free of inorganic materials and contact with moisture, thereby absorbing moisture.
  • the zinc-containing metal organic skeleton compound Zn-MOF has a specific surface area of 2,900 square meters per gram to 3,362 square meters per gram.
  • the zinc-containing metal organic skeleton compound Zn-MOF has a large specific surface area and a rule formed by a coordination bond formed by Zn 2+ and an organic ligand terephthalic acid (1,4-dicarboxybenzene, abbreviated as H 2 BDC).
  • H 2 BDC organic ligand terephthalic acid
  • the structural unit of the zinc-containing metal organic skeleton compound Zn-MOF is ZnO 4 (BDC) 3 capable of generating weak chemical interactions (such as van der Waals force, hydrogen bonding, etc.) with water molecules, thereby capturing moisture.
  • BDC ZnO 4
  • the porous structure of the zinc-containing metal organic skeleton compound Zn-MOF can provide a larger contact area with moisture contact, even a small amount of zinc-containing metal organic skeleton compound Zn-MOF can achieve the traditional drying The same water absorption effect of the agent, thereby reducing the amount of desiccant in the package structure and reducing the thickness of the package structure.
  • the package substrate 211 is a glass substrate, an edge portion of the periphery of the glass substrate is a convex portion, the dry layer 212 is disposed on a surface of the glass substrate, and the convex portion surrounds the dry layer.
  • the package substrate 211 is equivalent to a capping structure, and the dry layer is attached to a central portion of the inner surface of the cap.
  • FIG. 1 is a moisture-proof manner of an OLED display panel according to another embodiment of the present invention, by attaching an inorganic moisture-proof material 112 (such as calcium oxide, cerium oxide, etc.) to the cover plate 111, and then using the sealant 12 The cover plate 111 is sealed with the thin film transistor substrate 13 on which the OLED light-emitting layer 24 is evaporated.
  • an inorganic moisture-proof material 112 such as calcium oxide, cerium oxide, etc.
  • the structure of the inorganic moisture-proof material 112 can significantly increase the thickness of the display device, which is currently The light-thinning area of the display panel is away from each other, so the structure preparation material mainly selecting the dry layer of the OLED in the present invention is a zinc-containing metal organic skeleton compound.
  • an OLED display panel is further provided, and the OLED display panel includes:
  • the thin film transistor substrate 23 typically, the thin film transistor substrate 23 includes a substrate and a thin film transistor arranged in an array disposed above the substrate.
  • the OLED light emitting layer 24 is disposed on a surface of the thin film transistor substrate 23.
  • the OLED luminescent layer 24 includes a light-emitting device, but since the water and oxygen damage the light-emitting device is particularly large, the package structure is required to protect the light-emitting device from water and oxygen.
  • the dry layer in the present invention is used to absorb the light-emitting device. Moisture protection in the environment.
  • the OLED package structure 21 is disposed above the OLED light emitting layer 21, and the OLED package structure 21 and the thin film transistor substrate 23 form a closed cavity to protect the OLED light emitting layer 21; It is understood that other structures may exist between the OLED light emitting layer and the package structure 21, such as a TFE (film encapsulation layer) layer, a touch layer, a polarizer, and the like on the OLED light emitting layer.
  • a TFE film encapsulation layer
  • a sealant 22 disposed on an edge region of the thin film transistor substrate 23 for interfacing with an edge region of the package substrate 211 to adhere the thin film transistor substrate and the OLED package structure Connect
  • the OLED package structure 21 includes a package substrate 212 and a dry layer 212 for absorbing water and oxygen disposed on the surface of the package substrate 211.
  • the dry layer 212 is disposed on the package substrate 211 near the light emitting layer.
  • the preparation material of the drying layer 212 is a zinc-containing metal organic skeleton compound, and the zinc-containing metal organic skeleton compound has a porous structure.
  • the zinc-containing metal organic skeleton compound has a specific surface area of from 2,900 square meters per gram to 3,362 square meters per gram.
  • the zinc-containing metal organic skeleton compound is formed by a zinc bond and an organic ligand para-dicarboxylic acid through a coordination bond.
  • the structural unit of the zinc-containing metal organic skeleton compound is ZnO 4 (BDC) 3 .
  • the package substrate 211 is a glass substrate, and an edge portion of the periphery of the glass substrate is a convex portion (not shown), and the dry layer 212 is disposed on the surface of the glass substrate 211 and is formed by the convex portion. Enclosed (not shown), the sealant 22 bonds the raised portion to the thin film transistor substrate 23.
  • the principle of the OLED display panel is the same as that of the OLED package structure.
  • the principle of the OLED display panel please refer to the working principle of the OLED package structure, and details are not described herein.
  • An advantage of the present invention is to provide an OLED package structure and an OLED display panel.
  • the preparation material of the dry layer in the package structure is a zinc-containing metal organic skeleton compound, and the effect of ensuring the moisture absorption of the dry layer is reduced.
  • the thickness of the dried layer further reduces the thickness of the OLED package structure and the OLED display panel.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

本发明提供了一种OLED封装结构及OLED显示装置，所述OLED封装结构包括：封装基板以及设置在所述封装基板表面的用于吸收水氧的干燥层；其中，所述干燥层的制备材料为含锌金属有机骨架化合物，所述含锌金属有机骨架化合物为多孔结构。

Description

OLED封装结构及OLED显示面板 技术领域
本发明涉及显示技术领域，具体涉及一种OLED封装结构及OLED显示面板。
 背景技术
有机发光二极管（Organic Light Emitting Diode，OLED）由于具有自发光、驱动电压低、发光效率高等优点，在显示市场上具有广阔的应用前景。与传统的显示技术不同，OLED显示器件不需要背景光源，通过将电压施加于不同有机材料涂层即可得到不同颜色的发光。
有机发光材料极易与水和氧气反应，从而导致材料失活，因此，OLED显示面板的要求为：水汽透过率低于10 -6克/平方米/天，完善OLED显示面板阻隔水氧的结构，对于维持OLED显示面板的使用寿命非常重要。因此，目前亟需一种OLED封装结构及OLED显示面板以解决OLED显示面板对水氧的阻隔问题。
技术问题
现有OLED显示面板中采用无机材料吸收OLED显示面板内部水分，导致OLED封装结构及OLED显示面板厚度增加的问题。
 技术解决方案
为实现上述目的，本发明提供的技术方案如下：
根据本发明的一个方面，提供了一种OLED封装结构，所述OLED封装结构包括：封装基板以及设置在所述封装基板表面的用于吸收水氧的干燥层；
其中，所述干燥层的制备材料为含锌金属有机骨架化合物，所述含锌金属有机骨架化合物为多孔结构，所述含锌金属有机骨架化合物的结构基元为ZnO 4(BDC) 3。
根据本发明一优选实施例，所述含锌金属有机骨架化合物的比表面积为2900平方米每克至3362平方米每克。
根据本发明一优选实施例，所述含锌金属有机骨架化合物由锌离子与有机配体对位二甲酸通过配位键形成。
根据本发明一优选实施例，所述封装基板为玻璃基板，所述玻璃基板四周的边缘部分为凸起部，所述干燥层设置于所述玻璃基板表面，并且所述凸起部包围所述干燥层。
根据本发明的另一个方面，提供了一种OLED显示面板，所述OLED显示面板包括：
薄膜晶体管基板；
OLED发光层，所述OLED发光层设置在所述薄膜晶体管基板的表面；
OLED封装结构，所述OLED封装结构设置在所述OLED发光层的上方，所述OLED封装结构和所述薄膜晶体管基板形成了封闭腔体以保护所述OLED发光层；
封框胶，所述封框胶设置在所述薄膜晶体管基板的边缘区域，用以将所述薄膜晶体管基板和所述OLED封装结构粘接；
其中，所述OLED封装结构包括：封装基板以及设置在所述封装基板表面的用于吸收水氧的干燥层，所述干燥层设置在所述封装基板靠近所述发光层的那一侧表面；
所述干燥层的制备材料为含锌金属有机骨架化合物，所述含锌金属有机骨架化合物为多孔结构。
根据本发明一优选实施例，所述含锌金属有机骨架化合物的比表面积为2900平方米每克至3362平方米每克。
根据本发明一优选实施例，所述含锌金属有机骨架化合物由锌离子与有机配体对位二甲酸通过配位键形成。
根据本发明一优选实施例，所述含锌金属有机骨架化合物的结构基元为ZnO 4(BDC) 3。
根据本发明一优选实施例，所述封装基板为玻璃基板，所述玻璃基板四周的边缘部分为凸起部，所述干燥层设置于所述玻璃基板表面，并且所述凸起部包围所述干燥层，所述封框胶将所述凸起部与所述薄膜晶体管基板粘接。
根据本发明的又一个方面，提供了一种OLED封装结构，其包括：封装基板以及设置在所述封装基板表面的用于吸收水氧的干燥层；
其中，所述干燥层的制备材料为含锌金属有机骨架化合物，所述含锌金属有机骨架化合物为多孔结构。
根据本发明一优选实施例，所述含锌金属有机骨架化合物的比表面积为2900平方米每克至3362平方米每克。
根据本发明一优选实施例，所述含锌金属有机骨架化合物由锌离子与有机配体对位二甲酸通过配位键形成。
根据本发明一优选实施例，所述封装基板为玻璃基板，所述玻璃基板四周的边缘部分为凸起部，所述干燥层设置于所述玻璃基板表面，并且所述凸起部包围所述干燥层。
 有益效果
本发明的优点在于，提供了一种OLED封装结构及OLED显示面板，通过设置封装结构中干燥层的制备材料为含锌金属有机骨架化合物，在确保干燥层吸收水分的效果的前提下，缩减了干燥层的厚度，进而缩减了OLED封装结构和OLED显示面板的厚度，确保有机电致发光器件膜层的均一性，以提高屏幕的显示效率。
 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为现有技术中OLED显示面板的结构示意图；
图2为本发明实施例中OLED封装结构的结构示意图；
图3为本发明实施例中OLED显示面板的结构示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
本发明针对现有OLED显示面板中采用无机材料吸收OLED显示面板内部水分，导致OLED封装结构及OLED显示面板厚度增加的问题，提出了一种OLED封装结构及OLED显示面板，本实施例能够改善该缺陷。
下面结合附图和具体实施例对本发明做进一步的说明：
图1和图2为本发明实施例中OLED封装结构的结构示意图；图3为本发明实施例中OLED显示面板的结构示意图。
如图2所示，本发明提供了一种OLED封装结构，所述OLED封装结构包括：封装基板211以及设置在所述封装基板表面的用于吸收水氧的干燥层212；
其中，所述干燥层212的制备材料为含锌金属有机骨架化合物（Zn-containedmetal organic framework, 简称Zn-MOF），所述含锌金属有机骨架化合物Zn-MOF为多孔结构。
需要解释的是，本发明中的含锌金属有机骨架化合物Zn-MOF是一种新型的多孔材料，含锌金属有机骨架化合物Zn-MOF具有极大的比表面积，进而这种材料制备的干燥层212相同体积下能够提供无无机材料更大的接触面与水分接触，进而吸收水分。
进一步的，所述含锌金属有机骨架化合物Zn-MOF的比表面积为2900平方米每克至3362平方米每克。
优选的，所述含锌金属有机骨架化合物Zn-MOF由Zn 2+与有机配体对苯二甲酸（1,4-dicarboxybenzene，简称H 2BDC）通过配位键形成的拥有巨大比表面积、规则孔道结构的骨架材料。
所述含锌金属有机骨架化合物Zn-MOF的结构基元为ZnO 4(BDC) 3能够与水分子间产生弱的化学作用力（如范德瓦尔斯力、氢键等），从而捕获水分。相比于传统的实心干燥剂，多孔结构的含锌金属有机骨架化合物Zn-MOF能够提供更大的接触面积与水分接触，即使少量的含锌金属有机骨架化合物Zn-MOF也能够达到与传统干燥剂相同的吸水效果，从而降低封装结构中干燥剂用量，缩减封装结构的厚度。
优选的，所述封装基板211为玻璃基板，所述玻璃基板四周的边缘部分为凸起部，所述干燥层212设置于所述玻璃基板表面，并且所述凸起部包围所述干燥层，将相当所述封装基板211为封盖结构，干燥层贴附于封盖的内表面中部区域。
如图1所示为本发明另一实施例中OLED显示面板的防潮方式，通过将无机防潮材料112（如氧化钙、氧化钡等）贴附于盖板111上，然后利用封框胶12将盖板111与蒸镀了OLED发光层24的薄膜晶体管基板13密封。由于这样的设置可以隔绝外界的水氧，内部的水分也可以被无机材料112吸附，进而提升了OLED显示面板的使用寿命，但是无机防潮材料112结构会明显增大显示器件的厚度，这与当前显示面板轻薄化区域相背离，所以本发明中主要选择OLED干燥层的结构制备材料为含锌金属有机骨架化合物。
根据本发明的另一个方面，如图3所示，还提供了一种OLED显示面板，所述OLED显示面板包括：
薄膜晶体管基板23，通常的，薄膜晶体管基板23包括衬底和设置在衬底上方的阵列排布的薄膜晶体管。
OLED发光层24，所述OLED发光层24设置在所述薄膜晶体管基板23的表面。
通常的，OLED发光层24包括发光器件，但是由于水氧对发光器件的损害特别大，因此需要封装结构保护发光器件免受水氧的侵蚀，本发明中的干燥层就是用来吸收发光器件所处环境中的水分保护发光器件。
OLED封装结构21，所述OLED封装结构21设置在所述OLED发光层21的上方，所述OLED封装结构21和所述薄膜晶体管基板23形成了封闭腔体以保护所述OLED发光层21；可以理解的，在所述OLED发光层与所述封装结构21之间还可以存在其它结构，例如在OLED发光层之上的TFE（薄膜封装层）层、触控层、偏光片等结构。
封框胶22，所述封框胶22设置在所述薄膜晶体管基板23的边缘区域，用以与所述封装基板211的边缘区域对接，以便将所述薄膜晶体管基板和所述OLED封装结构粘接；
其中，所述OLED封装结构21包括：封装基板212以及设置在所述封装基板211表面的用于吸收水氧的干燥层212，所述干燥层212设置在所述封装基板211靠近所述发光层23的那一侧表面；
所述干燥层212的制备材料为含锌金属有机骨架化合物，所述含锌金属有机骨架化合物为多孔结构。
具体的，所述含锌金属有机骨架化合物的比表面积为2900平方米每克至3362平方米每克。
优选的，所述含锌金属有机骨架化合物由锌离子与有机配体对位二甲酸通过配位键形成。
优选的，所述含锌金属有机骨架化合物的结构基元为ZnO 4(BDC) 3。
优选的，所述封装基板211为玻璃基板，所述玻璃基板四周的边缘部分为凸起部（未标出），所述干燥层212设置于所述玻璃基板211表面并被所述凸起部（未标出）包围，所述封框胶22将所述凸起部与所述薄膜晶体管基板23粘接。
由于本发明中所述OLED显示面板的原理与所述OLED封装结构的工作原理相同，所述OLED显示面板的原理具体请参考所述OLED封装结构的工作原理，在此不做赘述。
本发明的优点是，提供了一种OLED封装结构及OLED显示面板，通过设置封装结构中干燥层的制备材料为含锌金属有机骨架化合物，在确保干燥层吸收水分的效果的前提下，缩减了干燥层的厚度，进而缩减了OLED封装结构和OLED显示面板的厚度。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (13)

  1. 一种OLED封装结构，其包括：封装基板以及设置在所述封装基板表面的用于吸收水氧的干燥层；
    其中，所述干燥层的制备材料为含锌金属有机骨架化合物，所述含锌金属有机骨架化合物为多孔结构，所述含锌金属有机骨架化合物的结构基元为ZnO 4(BDC) 3。
  2. 根据权利要求1所述的OLED封装结构，其中，所述含锌金属有机骨架化合物的比表面积为2900平方米每克至3362平方米每克。
  3. 根据权利要求1所述的OLED封装结构，其中，所述含锌金属有机骨架化合物由锌离子与有机配体对位二甲酸通过配位键形成。
  4. 根据权利要求1所述的OLED封装结构，其中，所述封装基板为玻璃基板，所述玻璃基板四周的边缘部分为凸起部，所述干燥层设置于所述玻璃基板表面，并且所述凸起部包围所述干燥层。
  5. 一种OLED显示面板，其包括：
    薄膜晶体管基板；
    OLED发光层，所述OLED发光层设置在所述薄膜晶体管基板的表面；
    OLED封装结构，所述OLED封装结构设置在所述OLED发光层的上方，所述OLED封装结构和所述薄膜晶体管基板形成了封闭腔体以保护所述OLED发光层；
    封框胶，所述封框胶设置在所述薄膜晶体管基板的边缘区域，用以将所述薄膜晶体管基板和所述OLED封装结构粘接；
    其中，所述OLED封装结构包括：封装基板以及设置在所述封装基板表面的用于吸收水氧的干燥层，所述干燥层设置在所述封装基板靠近所述发光层的那一侧表面；
    所述干燥层的制备材料为含锌金属有机骨架化合物，所述含锌金属有机骨架化合物为多孔结构。
  6. 根据权利要求5所述的OLED封装结构，其中，所述含锌金属有机骨架化合物的比表面积为2900平方米每克至3362平方米每克。
  7. 根据权利要求5所述的OLED封装结构，其中，所述含锌金属有机骨架化合物由锌离子与有机配体对位二甲酸通过配位键形成。
  8. 根据权利要求5所述的OLED封装结构，其中，所述含锌金属有机骨架化合物的结构基元为ZnO 4(BDC) 3。
  9. 根据权利要求5所述的OLED封装结构，其中，所述封装基板为玻璃基板，所述玻璃基板四周的边缘部分为凸起部，所述干燥层设置于所述玻璃基板表面，并且所述凸起部包围所述干燥层，所述封框胶将所述凸起部与所述薄膜晶体管基板粘接。
  10. 一种OLED封装结构，其包括：封装基板以及设置在所述封装基板表面的用于吸收水氧的干燥层；
    其中，所述干燥层的制备材料为含锌金属有机骨架化合物，所述含锌金属有机骨架化合物为多孔结构。
  11. 根据权利要求10所述的OLED封装结构，其中，所述含锌金属有机骨架化合物的比表面积为2900平方米每克至3362平方米每克。
  12. 根据权利要求10所述的OLED封装结构，其中，所述含锌金属有机骨架化合物由锌离子与有机配体对位二甲酸通过配位键形成。
  13. 根据权利要求10所述的OLED封装结构，其中，所述封装基板为玻璃基板，所述玻璃基板四周的边缘部分为凸起部，所述干燥层设置于所述玻璃基板表面，并且所述凸起部包围所述干燥层。
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