WO2017096688A1 - Oled显示面板及显示装置 - Google Patents

Oled显示面板及显示装置 Download PDF

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Publication number
WO2017096688A1
WO2017096688A1 PCT/CN2016/070293 CN2016070293W WO2017096688A1 WO 2017096688 A1 WO2017096688 A1 WO 2017096688A1 CN 2016070293 W CN2016070293 W CN 2016070293W WO 2017096688 A1 WO2017096688 A1 WO 2017096688A1
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Prior art keywords
layer
oled display
display panel
organic light
anode
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PCT/CN2016/070293
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English (en)
French (fr)
Inventor
徐超
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深圳市华星光电技术有限公司
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Priority to GB1805334.8A priority Critical patent/GB2560450A/en
Priority to JP2018530085A priority patent/JP6719563B2/ja
Priority to US14/908,138 priority patent/US9741958B2/en
Priority to KR1020187019695A priority patent/KR102183710B1/ko
Priority to EA201800257A priority patent/EA035238B1/ru
Publication of WO2017096688A1 publication Critical patent/WO2017096688A1/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
    • 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
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • H10K59/1315—Interconnections, e.g. wiring lines or terminals comprising structures specially adapted for lowering the resistance
    • 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
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/14—Carrier transporting layers
    • H10K50/15—Hole transporting layers
    • 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
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/14—Carrier transporting layers
    • H10K50/16—Electron transporting layers
    • 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
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/17—Carrier injection layers
    • 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
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/17—Carrier injection layers
    • H10K50/171—Electron injection layers
    • 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
    • H10K50/805—Electrodes
    • H10K50/81—Anodes
    • 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
    • H10K50/805—Electrodes
    • H10K50/81—Anodes
    • H10K50/814—Anodes combined with auxiliary electrodes, e.g. ITO layer combined with metal lines
    • 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
    • H10K59/805—Electrodes
    • H10K59/8051—Anodes
    • H10K59/80516—Anodes combined with auxiliary electrodes, e.g. ITO layer combined with metal lines
    • 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
    • H10K71/60—Forming conductive regions or layers, e.g. electrodes
    • H10K71/611—Forming conductive regions or layers, e.g. electrodes using printing deposition, e.g. ink jet printing
    • 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
    • H10K2102/10—Transparent electrodes, e.g. using graphene
    • H10K2102/101—Transparent electrodes, e.g. using graphene comprising transparent conductive oxides [TCO]
    • H10K2102/103—Transparent electrodes, e.g. using graphene comprising transparent conductive oxides [TCO] comprising indium oxides, e.g. ITO

Definitions

  • the present invention relates to the field of display, and in particular, to an OLED display panel and a display device.
  • uneven illumination is often caused, which is mainly due to uneven vertical resistance distribution and excessive horizontal resistance of the OLED display surface.
  • the vertical resistance is mainly determined by the energy level structure of the OLED, the carrier mobility, and the thickness of each film layer; the horizontal resistance is determined by the conductivity of the transparent electrode. Limited by the high level resistance of the transparent electrode, when the current is applied from the edge of the OLED display panel, it is difficult to reach the central region of the OLED display panel, thus causing uneven illumination of the OLED display panel.
  • the present invention provides an OLED display panel and a display device for improving the uniformity of illumination of a display panel, and solves the technical problem of poor uniformity of illumination of the existing OLED display panel and the display device.
  • An embodiment of the present invention provides an OLED display panel, including:
  • a hole injection layer disposed on the anode for injecting holes into the organic light-emitting layer
  • a hole transport layer disposed on the hole injection layer for transporting the holes injected into the hole injection layer to the organic light-emitting layer;
  • the organic light-emitting layer is disposed on the hole transport layer for combining the holes and electrons transmitted by the electron transport layer to generate light;
  • the electron transport layer disposed on the organic light emitting layer for transporting electrons injected into the cathode to the organic light emitting layer;
  • a cathode for generating the electron under the action of the driving voltage
  • a conductive layer is further disposed between the anode and the glass substrate;
  • the conductive layer is a metal mesh layer, and the electrical conductivity of the metal mesh layer is greater than the electrical conductivity of the anode; the conductive layer is disposed on the glass substrate by screen printing using metal ink.
  • the mesh structure of the metal mesh layer is a square, a hexagon or a rectangle.
  • the material of the metal ink is a conductive silver paste or a carbon nanotube solution.
  • the material of the anode is indium tin oxide or zinc aluminum oxide.
  • an electron injecting layer for injecting electrons into the organic light emitting layer is further included between the electron transport layer and the cathode.
  • An embodiment of the present invention provides an OLED display panel, including:
  • a hole injection layer disposed on the anode for injecting holes into the organic light-emitting layer
  • a hole transport layer disposed on the hole injection layer for transporting the holes injected into the hole injection layer to the organic light-emitting layer;
  • the organic light-emitting layer is disposed on the hole transport layer for combining the holes and electrons transmitted by the electron transport layer to generate light;
  • the electron transport layer disposed on the organic light emitting layer for transporting electrons injected into the cathode to the organic light emitting layer;
  • a cathode for generating the electron under the action of the driving voltage
  • a conductive layer is further disposed between the anode and the glass substrate.
  • the conductive layer is a metal mesh layer, and the electrical conductivity of the metal mesh layer is greater than the electrical conductivity of the anode.
  • the mesh structure of the metal mesh layer is a square, a hexagon or a rectangle.
  • the conductive layer is provided on the glass substrate by screen printing using metal ink.
  • the material of the metal ink is a conductive silver paste or a carbon nanotube solution.
  • the material of the anode is indium tin oxide or zinc aluminum oxide.
  • an electron injecting layer for injecting electrons into the organic light emitting layer is further included between the electron transport layer and the cathode.
  • An embodiment of the present invention further provides an OLED display device including an OLED display panel.
  • the OLED display panel comprises:
  • a hole injection layer disposed on the anode for injecting holes into the organic light-emitting layer
  • a hole transport layer disposed on the hole injection layer for transporting the holes injected into the hole injection layer to the organic light-emitting layer;
  • the organic light-emitting layer is disposed on the hole transport layer for combining the holes and electrons transmitted by the electron transport layer to generate light;
  • the electron transport layer disposed on the organic light emitting layer for transporting electrons injected into the cathode to the organic light emitting layer;
  • a cathode for generating the electron under the action of the driving voltage
  • a conductive layer is further disposed between the anode and the glass substrate.
  • the conductive layer is a metal mesh layer, and the electrical conductivity of the metal mesh layer is greater than the electrical conductivity of the anode.
  • the mesh structure of the metal mesh layer is square, hexagonal or rectangular.
  • the conductive layer is provided on the glass substrate by screen printing using metal ink.
  • the material of the metal ink is a conductive silver paste or a carbon nanotube solution.
  • the material of the anode is indium tin oxide or zinc aluminum oxide.
  • an electron injecting layer for injecting electrons into the organic light emitting layer is further included between the electron transport layer and the cathode.
  • the OLED display panel and the display device of the present invention can effectively reduce the horizontal resistance of the OLED display panel by the arrangement of the conductive layer, thereby improving the uniformity of illumination of the OLED display panel, and solving the uniformity of illumination of the existing OLED display panel and the display device. Poor technical issues.
  • FIG. 1 is a schematic structural view of a preferred embodiment of an OLED display panel of the present invention.
  • Figure 2 is a cross-sectional view of Figure 1 taken along the line A-A'.
  • FIG. 1 is a schematic structural view of a preferred embodiment of an OLED display panel of the present invention.
  • the OLED display panel 10 of the preferred embodiment includes a glass substrate 11, a conductive layer 12, an anode 13, and a hole injection layer (Hole Inject Layer, HIL) 14, Hole Transport Layer (HTL) 15, Organic Light Emitting Layer (Emitting Material) Layer, EML) 16, an electron transport layer (ETL) 17, and a cathode 18.
  • HIL Hol Inject Layer
  • HTL Hole Transport Layer
  • EML Organic Light Emitting Layer
  • ETL electron transport layer
  • the anode 13 is disposed on the glass substrate 11 for generating holes under the action of a driving voltage; the material of the anode 13 may be indium tin oxide or zinc aluminum oxide.
  • the conductive layer 12 is disposed between the anode 13 and the glass substrate 11 for reducing the horizontal resistance of the OLED display panel 10.
  • the hole injection layer 14 is provided on the anode for injecting holes into the organic light-emitting layer 16.
  • the hole transport layer 15 is disposed on the hole injection layer 14 for transporting holes injected into the hole injection layer 16 to the organic light-emitting layer 16; the organic light-emitting layer 16 is disposed on the hole transport layer 15 for emptying
  • the electrons transmitted by the holes and the electron transport layer 17 are combined to produce light.
  • An electron transport layer 17 is disposed on the organic light-emitting layer 16 for transporting electrons injected from the cathode 18 to the organic light-emitting layer 16.
  • the cathode 18 is for generating electrons under the action of a
  • an electron injection layer for injecting electrons into the organic light-emitting layer 16 may be further included between the electron transport layer 17 and the cathode 18 (Electron) Inject Layer; EIL).
  • the conductive layer 12 is a metal mesh layer having a conductivity greater than that of the anode.
  • the mesh structure of the metal mesh layer may be square, hexagonal or rectangular.
  • metal ink is first coated on the glass substrate 11 by screen printing.
  • the metallic ink can be a conductive silver paste or a carbon nanotube solution.
  • the metallic ink is then dried to obtain a highly conductive conductive layer 12.
  • an anode material such as indium tin oxide or zinc aluminum oxide is deposited on the conductive layer 12 by chemical vapor deposition or evaporation until the surface of the anode 13 is flat to ensure good contact between the anode 13 and the hole injection layer 14 above. .
  • a hole injection layer 14, a hole transport layer 15, an organic light-emitting layer 16, an electron transport layer 17, and a cathode 18 are sequentially formed on the anode 13.
  • the resistance of the conductive layer 14 is paralleled with the resistance of the anode 13 to reduce the horizontal resistance of the anode 13 in the horizontal direction, so that the entire OLED display panel 10 can be made.
  • the driving current is more uniform, thereby making the illumination of the OLED display panel 10 uniform.
  • the OLED display panel of the preferred embodiment fabricates a conductive layer on the glass substrate by means of screen printing, which can effectively improve the lateral conductivity of the anode, thereby improving the uniformity of illumination of the large-area OLED display panel.
  • the conductive layer is simple in manufacturing method and low in production cost.
  • the present invention also provides an OLED display device including an OLED display panel, the OLED display panel including a glass substrate, a conductive layer, an anode, a hole injection layer, a hole transport layer, an organic light-emitting layer, an electron transport layer, and cathode.
  • the anode is disposed on the glass substrate for generating holes under the action of the driving voltage.
  • a conductive layer is disposed between the anode and the glass substrate for reducing the horizontal resistance of the OLED display panel.
  • a hole injection layer is provided on the anode for injecting holes into the organic light-emitting layer.
  • a hole transport layer disposed on the hole injection layer for transporting holes injected into the hole injection layer to the organic light-emitting layer; the organic light-emitting layer being disposed on the hole transport layer for transporting holes and the electron transport layer
  • the electrons combine to produce light.
  • An electron transport layer is disposed on the organic light-emitting layer for transporting electrons injected into the electron injection layer to the organic light-emitting layer.
  • the cathode is used to generate electrons under the action of a driving voltage.
  • the conductive layer is a metal mesh layer, and the electrical conductivity of the metal mesh layer is greater than the electrical conductivity of the anode.
  • the mesh structure of the metal mesh layer is a square, a hexagon or a rectangle.
  • the conductive layer is disposed on the glass substrate by screen printing using a metal ink.
  • the material of the metal ink is a conductive silver paste or a carbon nanotube solution.
  • the material of the anode is indium tin oxide or zinc aluminum oxide.
  • an electron injecting layer for injecting electrons into the organic light emitting layer is further included between the electron transport layer and the cathode.
  • the specific working principle of the OLED display device of the preferred embodiment is the same as or similar to the description in the preferred embodiment of the OLED display panel described above. For details, refer to the related description in the preferred embodiment of the OLED display panel.
  • the OLED display panel and the display device of the present invention can effectively reduce the horizontal resistance of the OLED display panel by the arrangement of the conductive layer, thereby improving the uniformity of illumination of the OLED display panel, and solving the uniformity of illumination of the existing OLED display panel and the display device. Poor technical issues.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种OLED显示面板（10），包括玻璃基板（11）、导电层（12）、阳极（13）、空穴注入层（14）、空穴传输层（15）、有机发光层（16）、电子传输层（17）以及阴极（18）。导电层为金属网格层，金属网格层的电导率大于阳极的电导率。还提供一种OLED显示装置，该OLED显示面板及显示装置通过导电层的设置可以有效的降低OLED显示面板的水平电阻，从而提高OLED显示面板的发光均匀性。

Description

OLED显示面板及显示装置 技术领域
本发明涉及显示领域，特别涉及一种OLED显示面板及显示装置。
 背景技术
在大面积OLED显示面板的工作过程中，常出现发光不均匀的现象，其主要原因是由于OLED显示面的垂直电阻分布不均及水平电阻过大等。垂直电阻主要由OLED的能级结构、载流子迁移率和各膜层的厚度决定；水平电阻由透明电极的电导率决定。受到透明电极的高水平电阻的限制，当电流从OLED显示面板的边缘进行施加时，很难达到OLED显示面板的中心区域，因此导致OLED显示面板的发光不均匀。
故，有必要提供一种OLED显示面板及显示装置，以解决现有技术所存在的问题。
 技术问题
有鉴于此，本发明提供一种提高显示面板的发光均匀性的OLED显示面板及显示装置；以解决现有的OLED显示面板及显示装置的发光均匀性较差的技术问题。
 技术解决方案
本发明实施例提供一种OLED显示面板，其包括：
玻璃基板；
阳极，设置在所述玻璃基板上，用于在驱动电压的作用下，产生空穴；
空穴注入层，设置在所述阳极上，用于向有机发光层注入空穴；
空穴传输层，设置在所述空穴注入层上，用于将所述空穴注入层注入的所述空穴传输至所述有机发光层；
所述有机发光层，设置在所述空穴传输层上，用于将所述空穴以及电子传输层传输的电子进行结合，产生光亮；
所述电子传输层，设置在所述有机发光层上，用于将阴极注入的电子传输至所述有机发光层；以及
阴极，用于在所述驱动电压的作用下，产生所述电子；
其中在所述阳极和所述玻璃基板之间还设置有导电层；
其中所述导电层为金属网格层，所述金属网格层的电导率大于所述阳极的电导率；所述导电层通过使用金属墨水进行丝网印刷的方式设置在所述玻璃基板上。
在本发明所述的OLED显示面板中，所述金属网格层的网格结构为正方形、六边形或长方形。
在本发明所述的OLED显示面板中，所述金属墨水的材料为导电银浆或碳纳米管溶液。
在本发明所述的OLED显示面板中，所述阳极的材料为氧化铟锡或氧化锌铝。
在本发明所述的OLED显示面板中，所述电子传输层和所述阴极之间还包括用于向所述有机发光层注入电子的电子注入层。
本发明实施例提供一种OLED显示面板，其包括：
玻璃基板；
阳极，设置在所述玻璃基板上，用于在驱动电压的作用下，产生空穴；
空穴注入层，设置在所述阳极上，用于向有机发光层注入空穴；
空穴传输层，设置在所述空穴注入层上，用于将所述空穴注入层注入的所述空穴传输至所述有机发光层；
所述有机发光层，设置在所述空穴传输层上，用于将所述空穴以及电子传输层传输的电子进行结合，产生光亮；
所述电子传输层，设置在所述有机发光层上，用于将阴极注入的电子传输至所述有机发光层；以及
阴极，用于在所述驱动电压的作用下，产生所述电子；
其中在所述阳极和所述玻璃基板之间还设置有导电层。
在本发明所述的OLED显示面板中，所述导电层为金属网格层，所述金属网格层的电导率大于所述阳极的电导率。
在本发明所述的OLED显示面板中，所述金属网格层的网格结构为正方形、六边形或长方形。
在本发明所述的OLED显示面板中，所述导电层通过使用金属墨水进行丝网印刷的方式设置在所述玻璃基板上。
在本发明所述的OLED显示面板中，所述金属墨水的材料为导电银浆或碳纳米管溶液。
在本发明所述的OLED显示面板中，所述阳极的材料为氧化铟锡或氧化锌铝。
在本发明所述的OLED显示面板中，所述电子传输层和所述阴极之间还包括用于向所述有机发光层注入电子的电子注入层。
本发明实施例还提供一种OLED显示装置，其包括OLED显示面板，
其中所述OLED显示面板包括：
玻璃基板；
阳极，设置在所述玻璃基板上，用于在驱动电压的作用下，产生空穴；
空穴注入层，设置在所述阳极上，用于向有机发光层注入空穴；
空穴传输层，设置在所述空穴注入层上，用于将所述空穴注入层注入的所述空穴传输至所述有机发光层；
所述有机发光层，设置在所述空穴传输层上，用于将所述空穴以及电子传输层传输的电子进行结合，产生光亮；
所述电子传输层，设置在所述有机发光层上，用于将阴极注入的电子传输至所述有机发光层；以及
阴极，用于在所述驱动电压的作用下，产生所述电子；
其中在所述阳极和所述玻璃基板之间还设置有导电层。
在本发明所述的OLED显示装置中，所述导电层为金属网格层，所述金属网格层的电导率大于所述阳极的电导率。
在本发明所述的OLED显示装置中，所述金属网格层的网格结构为正方形、六边形或长方形。
在本发明所述的OLED显示装置中，所述导电层通过使用金属墨水进行丝网印刷的方式设置在所述玻璃基板上。
在本发明所述的OLED显示装置中，所述金属墨水的材料为导电银浆或碳纳米管溶液。
在本发明所述的OLED显示装置中，所述阳极的材料为氧化铟锡或氧化锌铝。
在本发明所述的OLED显示装置中，所述电子传输层和所述阴极之间还包括用于向所述有机发光层注入电子的电子注入层。
 有益效果
本发明的OLED显示面板及显示装置通过导电层的设置可以有效的降低OLED显示面板的水平电阻，从而提高OLED显示面板的发光均匀性；解决了现有的OLED显示面板及显示装置的发光均匀性较差的技术问题。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面对实施例中所需要使用的附图作简单的介绍。下面描述中的附图仅为本发明的部分实施例，对于本领域普通技术人员而言，在不付出创造性劳动的前提下，还可以根据这些附图获取其他的附图。
图1为本发明的OLED显示面板的优选实施例的结构示意图；
图2为图1按A-A’截面线的截面图。
 本发明的最佳实施方式
请参照附图中的图式，其中相同的组件符号代表相同的组件。以下的说明是基于所例示的本发明具体实施例，其不应被视为限制本发明未在此详述的其它具体实施例。
请参照图1，图1为本发明的OLED显示面板的优选实施例的结构示意图。本优选实施例的OLED显示面板10包括玻璃基板11、导电层12、阳极13、空穴注入层（Hole Inject Layer，HIL)14、空穴传输层（Hole Transport Layer，HTL）15、有机发光层（Emitting Material Layer，EML）16、电子传输层（Electron Transport Layer；ETL）17以及阴极18。
阳极13设置在玻璃基板11上，用于在驱动电压的作用下，产生空穴；该阳极13的材料可为氧化铟锡或氧化锌铝。导电层12设置在阳极13和玻璃基板11之间，用于降低OLED显示面板10的水平电阻。空穴注入层14设置在阳极上，用于向有机发光层16注入空穴。空穴传输层15设置在空穴注入层14上，用于将空穴注入层16注入的空穴传输至有机发光层16；有机发光层16设置在空穴传输层15上，用于将空穴以及电子传输层17传输的电子进行结合，产生光亮。电子传输层17设置在有机发光层16上，用于将阴极18注入的电子传输至有机发光层16。阴极18用于在驱动电压的作用下，产生电子。
优选的，电子传输层17和阴极18之间还可包括用于向有机发光层16注入电子的电子注入层（Electron Inject Layer；EIL）。
如图2所示，导电层12为金属网格层，该金属网格层的电导率大于阳极的电导率。该金属网格层的网格结构可为正方形、六边形或长方形。
制作本优选实施例的OLED显示面板10时，首先通过丝网印刷的方式，将金属墨水涂覆在玻璃基板11上。该金属墨水可为导电银浆或碳纳米管溶液。随后对金属墨水进行干燥处理，以获取高电导率的导电层12。
然后通过化学气相沉积或蒸镀的方式，在导电层12上沉积阳极材料，如氧化铟锡或氧化锌铝，直至阳极13表面平整，以保证阳极13和上面的空穴注入层14的接触良好。
最后在阳极13上依次制作空穴注入层14、空穴传输层15、有机发光层16、电子传输层17以及阴极18。
这样即完成了本优选实施例的OLED显示面板10的制作。
本优选实施例的OLED显示面板10使用时，如电流在阳极13上水平传输，导电层14电阻与阳极13电阻并联，降低了阳极13在水平方向上水平电阻，从而可使整个OLED显示面板10的驱动电流更加均匀，进而使得OLED显示面板10的发光均匀。
本优选实施例的OLED显示面板通过丝网印刷的方式在玻璃基板上制作导电层，能够有效的提高阳极的横向导电能力，从而提高大面积OLED显示面板的发光均匀性。同时该导电层的制作方法简单且制作成本低廉。
本发明还提供一种OLED显示装置，该OLED显示装置包括OLED显示面板，该OLED显示面板包括玻璃基板、导电层、阳极、空穴注入层、空穴传输层、有机发光层、电子传输层以及阴极。
阳极设置在玻璃基板上，用于在驱动电压的作用下，产生空穴。导电层设置在阳极和玻璃基板之间，用于降低OLED显示面板的水平电阻。空穴注入层设置在阳极上，用于向有机发光层注入空穴。空穴传输层设置在空穴注入层上，用于将空穴注入层注入的空穴传输至有机发光层；有机发光层设置在空穴传输层上，用于将空穴以及电子传输层传输的电子进行结合，产生光亮。电子传输层设置在有机发光层上，用于将电子注入层注入的电子传输至所述有机发光层。阴极用于在驱动电压的作用下，产生电子。
优选的，导电层为金属网格层，金属网格层的电导率大于阳极的电导率。
优选的，金属网格层的网格结构为正方形、六边形或长方形。
优选的，导电层通过使用金属墨水进行丝网印刷的方式设置在玻璃基板上。
优选的，金属墨水的材料为导电银浆或碳纳米管溶液。
优选的，阳极的材料为氧化铟锡或氧化锌铝。
优选的，电子传输层和阴极之间还包括用于向有机发光层注入电子的电子注入层。
本优选实施例的OLED显示装置的具体工作原理与上述的OLED显示面板的优选实施例中的描述相同或相似，具体请参见上述OLED显示面板的优选实施例中的相关描述。
本发明的OLED显示面板及显示装置通过导电层的设置可以有效的降低OLED显示面板的水平电阻，从而提高OLED显示面板的发光均匀性；解决了现有的OLED显示面板及显示装置的发光均匀性较差的技术问题。
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 (19)

  1. 一种OLED显示面板，其包括：
    玻璃基板；
    阳极，设置在所述玻璃基板上，用于在驱动电压的作用下，产生空穴；
    空穴注入层，设置在所述阳极上，用于向有机发光层注入空穴；
    空穴传输层，设置在所述空穴注入层上，用于将所述空穴注入层注入的所述空穴传输至所述有机发光层；
    所述有机发光层，设置在所述空穴传输层上，用于将所述空穴以及电子传输层传输的电子进行结合，产生光亮；
    所述电子传输层，设置在所述有机发光层上，用于将阴极注入的电子传输至所述有机发光层；以及
    阴极，用于在所述驱动电压的作用下，产生所述电子；
    其中在所述阳极和所述玻璃基板之间还设置有导电层；
    其中所述导电层为金属网格层，所述金属网格层的电导率大于所述阳极的电导率；所述导电层通过使用金属墨水进行丝网印刷的方式设置在所述玻璃基板上。
  2. 根据权利要求1所述的OLED显示面板，其中所述金属网格层的网格结构为正方形、六边形或长方形。
  3. 根据权利要求1所述的OLED显示面板，其中所述金属墨水的材料为导电银浆或碳纳米管溶液。
  4. 根据权利要求1所述的OLED显示面板，其中所述阳极的材料为氧化铟锡或氧化锌铝。
  5. 根据权利要求1所述的OLED显示面板，其中所述电子传输层和所述阴极之间还包括用于向所述有机发光层注入电子的电子注入层。
  6. 一种OLED显示面板，其包括：
    玻璃基板；
    阳极，设置在所述玻璃基板上，用于在驱动电压的作用下，产生空穴；
    空穴注入层，设置在所述阳极上，用于向有机发光层注入空穴；
    空穴传输层，设置在所述空穴注入层上，用于将所述空穴注入层注入的所述空穴传输至所述有机发光层；
    所述有机发光层，设置在所述空穴传输层上，用于将所述空穴以及电子传输层传输的电子进行结合，产生光亮；
    所述电子传输层，设置在所述有机发光层上，用于将阴极注入的电子传输至所述有机发光层；以及
    阴极，用于在所述驱动电压的作用下，产生所述电子；
    其中在所述阳极和所述玻璃基板之间还设置有导电层。
  7. 根据权利要求6所述的OLED显示面板，其中所述导电层为金属网格层，所述金属网格层的电导率大于所述阳极的电导率。
  8. 根据权利要求7所述的OLED显示面板，其中所述金属网格层的网格结构为正方形、六边形或长方形。
  9. 根据权利要求6所述的OLED显示面板，其中所述导电层通过使用金属墨水进行丝网印刷的方式设置在所述玻璃基板上。
  10. 根据权利要求9所述的OLED显示面板，其中所述金属墨水的材料为导电银浆或碳纳米管溶液。
  11. 根据权利要求9所述的OLED显示面板，其中所述阳极的材料为氧化铟锡或氧化锌铝。
  12. 根据权利要求6所述的OLED显示面板，其中所述电子传输层和所述阴极之间还包括用于向所述有机发光层注入电子的电子注入层。
  13. 一种OLED显示装置，其包括OLED显示面板，
    其中所述OLED显示面板包括：
    玻璃基板；
    阳极，设置在所述玻璃基板上，用于在驱动电压的作用下，产生空穴；
    空穴注入层，设置在所述阳极上，用于向有机发光层注入空穴；
    空穴传输层，设置在所述空穴注入层上，用于将所述空穴注入层注入的所述空穴传输至所述有机发光层；
    所述有机发光层，设置在所述空穴传输层上，用于将所述空穴以及电子传输层传输的电子进行结合，产生光亮；
    所述电子传输层，设置在所述有机发光层上，用于将阴极注入的电子传输至所述有机发光层；以及
    阴极，用于在所述驱动电压的作用下，产生所述电子；
    其中在所述阳极和所述玻璃基板之间还设置有导电层。
  14. 根据权利要求13所述的OLED显示装置，其中所述导电层为金属网格层，所述金属网格层的电导率大于所述阳极的电导率。
  15. 根据权利要求14所述的OLED显示装置，其中所述金属网格层的网格结构为正方形、六边形或长方形。
  16. 根据权利要求13所述的OLED显示装置，其中所述导电层通过使用金属墨水进行丝网印刷的方式设置在所述玻璃基板上。
  17. 根据权利要求16所述的OLED显示装置，其中所述金属墨水的材料为导电银浆或碳纳米管溶液。
  18. 根据权利要求16所述的OLED显示装置，其中所述阳极的材料为氧化铟锡或氧化锌铝。
  19. 根据权利要求13所述的OLED显示装置，其中所述电子传输层和所述阴极之间还包括用于向所述有机发光层注入电子的电子注入层。
PCT/CN2016/070293 2015-12-10 2016-01-06 Oled显示面板及显示装置 WO2017096688A1 (zh)

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