WO2016033845A1 - 一种有机发光二极管封装结构及显示装置 - Google Patents

一种有机发光二极管封装结构及显示装置 Download PDF

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WO2016033845A1
WO2016033845A1 PCT/CN2014/087184 CN2014087184W WO2016033845A1 WO 2016033845 A1 WO2016033845 A1 WO 2016033845A1 CN 2014087184 W CN2014087184 W CN 2014087184W WO 2016033845 A1 WO2016033845 A1 WO 2016033845A1
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Prior art keywords
emitting diode
organic light
light emitting
active metal
film layer
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PCT/CN2014/087184
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English (en)
French (fr)
Inventor
余威
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/401,847 priority Critical patent/US9537115B2/en
Priority to DE112014006924.8T priority patent/DE112014006924B4/de
Priority to EA201790512A priority patent/EA034255B1/ru
Priority to GB201705231A priority patent/GB2547130B/en
Priority to KR1020177009009A priority patent/KR101889869B1/ko
Priority to JP2017512016A priority patent/JP6449992B2/ja
Publication of WO2016033845A1 publication Critical patent/WO2016033845A1/zh
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/874—Passivation; Containers; Encapsulations including getter material or desiccant
    • 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
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements
    • H10K59/8722—Peripheral sealing arrangements, e.g. adhesives, sealants

Definitions

  • the present invention relates to the field of manufacturing technologies for liquid crystal display panels, and in particular, to an organic light emitting diode package structure and a display device.
  • OLED Organic Light Emitting Diode
  • OLED Organic Light-Emitting Diode
  • the OLED device 11 is formed by forming an organic thin film on an OLED substrate 12 in which an organic thin film is sandwiched between a cathode and an anode metal. When a voltage is applied to both electrodes, the organic thin film emits light. Since the organic film is sensitive to moisture and oxygen, it is prone to aging and denaturation due to water and oxygen, and the brightness and life are obviously attenuated. Therefore, the OLED device 11 needs to be packaged. As shown in FIG. 1 , FIG. 1 is a schematic diagram of a conventional OLED package structure. The general package method is to use a glass substrate 13 as a package cover plate, and then apply a sealant 14 around the two substrates to align and seal. Thus, the sealing material on the two substrates and the frame forms a sealed space, also called a sealed cavity, in which the OLED device 11 is located.
  • a desiccant 15 is generally added to the OLED sealing cavity, as shown in Fig. 1, but in practice, the inventors have found that the desiccant can only eliminate water vapor, and the oxygen can also cause the OLED device. 11 aging, that is, the addition of the desiccant cannot eliminate the residual or externally infiltrated oxygen in the closed cavity, or the aging problem of the OLED device 11 cannot be improved.
  • An object of the present invention is to provide an organic light emitting diode package structure and a display device, which are intended to reduce the surface roughness of the prepared low temperature polysilicon film and improve the crystallization effect.
  • An organic light emitting diode package structure includes:
  • An organic light emitting diode substrate, the surface of the organic light emitting diode substrate is provided with an organic light emitting diode device;
  • the surface of the package substrate is provided with an active metal film layer for absorbing oxygen inside the package structure, the surface of the active metal film layer is provided with at least one irregular protrusion, and the active metal film layer is metal copper Film layer
  • edges of the organic light emitting diode substrate and the package substrate are bonded and fixed by a sealant to form a sealed cavity, and the organic light emitting diode device and the active metal film layer are located in the sealed cavity.
  • the active metal film layer is composed of at least one active metal block, and each of the active metal block surfaces is provided with at least one irregular protrusion.
  • the active metal film layer is provided with a desiccant layer for absorbing water vapor inside the package structure.
  • the desiccant layer includes at least one of calcium oxide or barium oxide.
  • the embodiment of the present invention further provides the following technical solutions:
  • An organic light emitting diode package structure includes:
  • An organic light emitting diode substrate, the surface of the organic light emitting diode substrate is provided with an organic light emitting diode device;
  • the surface of the package substrate is provided with an active metal film layer for absorbing oxygen inside the package structure;
  • edges of the organic light emitting diode substrate and the package substrate are bonded and fixed by a sealant to form a sealed cavity, and the organic light emitting diode device and the active metal film layer are located in the sealed cavity.
  • the surface of the active metal film layer is provided with at least one irregular protrusion.
  • the active metal film layer is composed of at least one active metal block, and each of the active metal block surfaces is provided with at least one irregular protrusion.
  • the active metal film layer is provided with a desiccant layer for absorbing water vapor inside the package structure.
  • the desiccant layer includes at least one of calcium oxide or barium oxide.
  • the active metal film layer is a metal copper film layer.
  • the embodiment of the present invention further provides the following technical solutions:
  • a display device includes an organic light emitting diode package structure, wherein the organic light emitting diode package structure comprises:
  • An organic light emitting diode substrate, the surface of the organic light emitting diode substrate is provided with an organic light emitting diode device;
  • the surface of the package substrate is provided with an active metal film layer for absorbing oxygen inside the package structure;
  • edges of the organic light emitting diode substrate and the package substrate are bonded and fixed by a sealant to form a sealed cavity, and the organic light emitting diode device and the active metal film layer are located in the sealed cavity.
  • the active metal film layer is composed of at least one active metal block, and each of the active metal block surfaces is provided with at least one irregular protrusion.
  • the active metal film layer is composed of at least one active metal block, and each of the active metal block surfaces is provided with at least one irregular protrusion.
  • the desiccant layer includes at least one of calcium oxide or barium oxide.
  • the present invention provides an OLED package structure and a display device, wherein an edge of the OLED substrate and the package substrate are bonded and fixed by a sealant to form a sealed cavity, and the OLED device is located in the sealed cavity.
  • the sealed cavity further comprises an active metal film layer for absorbing oxygen inside the package structure, that is, the active metal film layer can absorb residual or externally infiltrated oxygen in the sealed cavity, thereby achieving an oxygen permeability of the organic light emitting diode (OLED) device.
  • OLED organic light emitting diode
  • FIG. 1 is a schematic view of a conventional organic light emitting diode package structure
  • FIG. 2 is a schematic diagram of an organic light emitting diode package structure according to an embodiment of the present invention.
  • FIG 3 is another schematic diagram of an OLED package structure according to an embodiment of the present invention.
  • FIG. 4 is another schematic diagram of an OLED package structure according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a display device according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a package structure of an organic light emitting diode (ie, OLED) according to an embodiment of the present invention; wherein the OLED package structure includes:
  • the surface of the package substrate 23 is provided with an active metal film layer 25 for absorbing oxygen inside the package structure;
  • the edges of the organic light emitting diode substrate 22 and the package substrate 23 are bonded and fixed by a sealant 24 to form a sealed cavity, and the organic light emitting diode device 21 and the active metal film layer 25 are located in the sealed cavity.
  • the organic light emitting diode device 21 is disposed on the surface of the organic light emitting diode substrate 22 and located in the sealed cavity, the organic light emitting diode device 21 includes an anode metal and a cathode metal, and is disposed on the anode metal and the A multilayer organic film between the cathode metals; if a voltage is applied to the two electrodes, the organic film emits light.
  • the OLED substrate 22, the package substrate 23, and the sealant 24 form a sealed cavity, since the edges of the OLED substrate 22 and the package substrate 23 are bonded and fixed by the sealant 24,
  • the sealed cavity can be considered inside the package structure.
  • the sealing cavity further includes an active metal film layer 25 disposed on the surface of the package substrate 23 for absorbing oxygen inside the package structure, that is, the active metal film layer 25 can absorb residual or external infiltration in the sealed cavity. Oxygen can act to block oxygen.
  • the organic light emitting diode substrate 22 and the package substrate 23 are both glass substrates; preferably, the sealant is UV (Ultraviolet) Rays) glue, also called photosensitive glue and ultraviolet curing glue, after aligning the organic light emitting diode substrate 22 and the package substrate 23, the two are bonded and fixed by using UV glue, and then the UV glue is irradiated with UV light. Curing acts as a seal.
  • UV Ultraviolet
  • the active metal film layer 25 can be deposited by physical vapor deposition (PVD, Physical Vapor). Deposition of the machine is completed; further preferably, in order to increase the surface area of the active metal film layer 25 in contact with oxygen, it is effective to react with oxygen, and at least one surface may be disposed on the surface of the active metal film layer 25. a regular protrusion; wherein the at least one irregular protrusion is fabricated using a photo/etch process.
  • PVD physical vapor deposition
  • FIG. 3 it is a schematic structural diagram of the active metal film layer 25, wherein the active metal film layer 25 is composed of at least one active metal block 251, that is, the active metal film layer 25 may include a plurality of metals reactive with oxygen.
  • FIG. 4 is another schematic structural view of the active metal film layer 25.
  • Each of the living metal blocks 251 is provided with at least one irregular protrusion 252 on the surface thereof, and the irregular protrusion 252.
  • the setting is to increase the surface area of each metal pattern in contact with oxygen so that it can effectively react with oxygen; and, it can be fabricated using a photo/etching process.
  • the specific size of the metal pattern can be adjusted and determined according to the size of the organic light emitting diode package structure in practical applications, which is not specifically limited herein.
  • the active metal film layer 25 may be a metal aluminum (Al), a metal copper (Cu), or a metal silver (Ag) film layer.
  • the embodiment of the present invention is preferably a metal copper film layer, and the metal copper film layer reacts with oxygen.
  • the organic light emitting diode package structure and the display device provided by the embodiments of the present invention, wherein the edges of the organic light emitting diode substrate 22 and the package substrate 23 are bonded and fixed by the sealant 24 to form a sealed cavity, and the organic light emitting diode device 21 is located in the sealed cavity, and the sealed cavity further comprises an active metal film layer 25 for absorbing oxygen inside the package structure, that is, the active metal film layer 25 can absorb residual or externally infiltrated oxygen in the sealed cavity, thereby achieving an organic light emitting diode ( OLED) devices have requirements for oxygen permeability, improve aging of organic light-emitting diode devices, and extend the service life of organic light-emitting diode devices and display devices.
  • OLED organic light emitting diode
  • the active metal film layer 25 may further be provided with a desiccant layer (not shown) for absorbing water vapor inside the package structure.
  • the desiccant layer comprises at least one of calcium oxide (CaO) or strontium oxide (SrO).
  • the desiccant layer may be a desiccant particle, and the desiccant particle may be specifically a spherical desiccant having a diameter of 0.04 to 0.07 mm. Between. It is easy to think that the specific size can be adjusted and determined according to the size of the organic light emitting diode package structure in practical applications, and is not specifically limited herein.
  • the organic light emitting diode package structure provided by the embodiment of the present invention, wherein the edges of the organic light emitting diode substrate 22 and the package substrate 23 are adhered and fixed by the sealant 24 to form a sealed cavity, and the organic light emitting diode device 21 is sealed.
  • the sealing cavity further comprises an active metal film layer 25 for absorbing oxygen inside the package structure, that is, the active metal film layer 25 can absorb residual or externally infiltrated oxygen in the sealing cavity, and further preferably, the sealing cavity further includes
  • the desiccant layer absorbing the moisture inside the package structure can absorb the water vapor and oxygen in the organic light emitting diode (OLED) package structure, thereby simultaneously meeting the oxygen and water permeability requirements of the organic light emitting diode device, and better improving the organic light emission.
  • the aging problem of the diode device further extends the service life of the organic light emitting diode device and the display device.
  • an embodiment of the present invention further provides a display device including the OLED package structure.
  • the meaning of the noun is the same as that in the above OLED package structure.
  • FIG. 5 is a schematic structural diagram of a display device 500 according to the present invention.
  • the display device 500 includes a backlight and a display panel, wherein the backlight includes an organic light emitting diode package structure 501, wherein the organic
  • the OLED package structure 501 adopts the OLED package structure provided by the above embodiments.
  • the OLED package structure 501 includes:
  • the surface of the package substrate 23 is provided with an active metal film layer 25 for absorbing oxygen inside the package structure;
  • the edges of the organic light emitting diode substrate 22 and the package substrate 23 are bonded and fixed by a sealant 24 to form a sealed cavity, and the organic light emitting diode device 21 and the active metal film layer 25 are located in the sealed cavity.
  • the organic light emitting diode device 21 is disposed on the surface of the organic light emitting diode substrate 22 and located in the sealed cavity, the organic light emitting diode device 21 includes an anode metal and a cathode metal, and is disposed on the anode metal and the A multilayer organic film between the cathode metals; if a voltage is applied to the two electrodes, the organic film emits light.
  • the OLED substrate 22, the package substrate 23, and the sealant 24 form a sealed cavity, since the edges of the OLED substrate 22 and the package substrate 23 are bonded and fixed by the sealant 24,
  • the sealed cavity can be considered inside the package structure.
  • the sealing cavity further includes an active metal film layer 25 disposed on the surface of the package substrate 23 for absorbing oxygen inside the package structure, that is, the active metal film layer 25 can absorb residual or external infiltration in the sealed cavity. Oxygen can act to block oxygen.
  • the organic light emitting diode substrate 22 and the package substrate 23 are both glass substrates; preferably, the sealant is a UV glue, also called a photosensitive glue and an ultraviolet light curing glue, and the organic light emitting diode is used.
  • the sealant is a UV glue, also called a photosensitive glue and an ultraviolet light curing glue, and the organic light emitting diode is used.
  • the active metal film layer 25 can be completed by physical vapor deposition PVD machine sputtering; further preferably, in order to increase the surface area of the active metal film layer 25 in contact with oxygen, it can effectively react with oxygen.
  • At least one irregular protrusion is disposed on a surface of the active metal film layer 25; wherein the at least one irregular protrusion is fabricated using a photolithography/etching process.
  • the active metal film layer 25 is composed of at least one active metal block 251, that is, the active metal film layer 25 may include a plurality of metal patterns reactive with oxygen; further, as shown in FIG.
  • the surface of the active metal block 251 is provided with at least one irregular protrusion 252, which is arranged to increase the surface area of each metal pattern in contact with oxygen, so that it can effectively react with oxygen; It can be fabricated using a photolithography/etching process.
  • the specific size of the metal pattern can be adjusted and determined according to the size of the organic light emitting diode package structure in practical applications, which is not specifically limited herein.
  • the active metal film layer 25 may be a metal aluminum (Al), a metal copper (Cu), or a metal silver (Ag) film layer.
  • the embodiment of the present invention is preferably a metal copper film layer, and the metal copper film layer reacts with oxygen.
  • the active metal film layer 25 may be provided with a desiccant layer for absorbing water vapor inside the package structure.
  • the desiccant layer comprises at least one of calcium oxide or cerium oxide.
  • the desiccant layer may be a desiccant particle, and the desiccant particle may be specifically a spherical desiccant having a diameter of 0.04 to 0.07 mm. Between. It is easy to think that the specific size can be adjusted and determined according to the size of the organic light emitting diode package structure in practical applications, and is not specifically limited herein.
  • the display device 500 wherein the edges of the organic light emitting diode substrate 22 and the package substrate 23 are bonded and fixed by the sealant 24 to form a sealed cavity, and the organic light emitting diode device 21 is located in the sealed cavity.
  • the sealed cavity further includes an active metal film layer 25 for absorbing oxygen inside the package structure, that is, the active metal film layer 25 can absorb residual or externally infiltrated oxygen in the sealed cavity, and further preferably, the sealed cavity further includes an absorbing package.
  • the desiccant layer of the water vapor inside the structure can absorb the water vapor and oxygen in the organic light emitting diode (OLED) package structure, so that the oxygen and water permeability requirements of the organic light emitting diode device can be simultaneously achieved, and the organic light emitting diode device can be better improved.
  • the aging problem further extends the service life of the organic light emitting diode device and the display device.

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  • Optics & Photonics (AREA)
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Abstract

有机发光二极管封装结构及显示装置，包括有机发光二极管基板（22），表面设置有机发光二极管器件（21）；封装基板（23），表面设置活泼金属膜层（25）；有机发光二极管基板（22）和封装基板（23）的边缘相粘合固定以形成密封腔，有机发光二极管器件（21）和活泼金属膜层（25）位于密封腔内。通过活泼金属膜层（25）吸收密封腔内残留或外部渗入的氧气，从而延长有机发光二极管的使用寿命。

Description

一种有机发光二极管封装结构及显示装置 技术领域
本发明涉及液晶显示面板制造技术领域，特别涉及一种有机发光二极管封装结构及显示装置。
 背景技术
有机发光二极管OLED（Organic Light-Emitting Diode）器件由于其具有的全固态结构、高亮度、全视角、响应速度快、工作温度范围宽、可实现柔性显示等一系列优点，目前已经成为极具竞争力和发展前景的下一代显示技术，而OLED显示器也成为了新一代的显示器。
OLED器件11通过在一块OLED基板12上制作有机薄膜，其中有机薄膜被包在阴极和阳极金属之间而构成，给两电极加电压，则有机薄膜会发光。由于有机薄膜对水气和氧气很敏感，容易因水氧发生老化变性，亮度和寿命会出现明显衰减。所以需要对OLED器件11进行封装制程。如图1所示，图1为现有的OLED封装结构示意图，一般的封装方式为用一块玻璃基板13上作为封装盖板，然后在两块基板周边涂上密封胶14，对准并密封起来，由此，两块基板和边框上密封胶形成了密闭空间，也称密封腔，OLED器件11处于该密封腔中。
通常的，为了延长OLED器件11寿命，一般会在OLED密封腔内加入干燥剂15，如图1所示，可是在实践中，发明人发现干燥剂只能消除水气，氧气同样会使OLED器件11老化，即加入干燥剂无法消除掉密闭腔内残留的或者外部渗入的氧气，还是无法改善OLED器件11的老化问题。
 技术问题
本发明的目的在于提供一种有机发光二极管封装结构及显示装置，旨在降低制备出来的低温多晶硅薄膜的表面粗糙度，改善结晶效果。
 技术解决方案
一种有机发光二极管封装结构，其中包括：
一有机发光二极管基板，所述有机发光二极管基板表面设置有有机发光二极管器件；
一封装基板，所述封装基板表面设置有用于吸收所述封装结构内部氧气的活泼金属膜层，所述活泼金属膜层表面设置有至少一个不规则凸起，所述活泼金属膜层为金属铜膜层；
所述有机发光二极管基板和所述封装基板的边缘通过密封胶相粘合固定以形成密封腔，所述有机发光二极管器件和所述活泼金属膜层位于所述密封腔内。
在上述有机发光二极管封装结构中，所述活泼金属膜层由至少一个活泼金属块组成，每一所述活泼金属块表面设置有至少一个不规则凸起。
在上述有机发光二极管封装结构中，所述活泼金属膜层上设置有用于吸收所述封装结构内部水汽的干燥剂层。
在上述有机发光二极管封装结构中，所述干燥剂层包括氧化钙或氧化锶中的至少一种。
为解决上述问题，本发明实施例还提供技术方案如下：
一种有机发光二极管封装结构，其中包括：
一有机发光二极管基板，所述有机发光二极管基板表面设置有有机发光二极管器件；
一封装基板，所述封装基板表面设置有用于吸收所述封装结构内部氧气的活泼金属膜层；
所述有机发光二极管基板和所述封装基板的边缘通过密封胶相粘合固定以形成密封腔，所述有机发光二极管器件和所述活泼金属膜层位于所述密封腔内。
在上述有机发光二极管封装结构中，所述活泼金属膜层表面设置有至少一个不规则凸起。
在上述有机发光二极管封装结构中，所述活泼金属膜层由至少一个活泼金属块组成，每一所述活泼金属块表面设置有至少一个不规则凸起。
在上述有机发光二极管封装结构中，所述活泼金属膜层上设置有用于吸收所述封装结构内部水汽的干燥剂层。
在上述有机发光二极管封装结构中，所述干燥剂层包括氧化钙或氧化锶中的至少一种。
在上述有机发光二极管封装结构中，所述活泼金属膜层为金属铜膜层。
为解决上述问题，本发明实施例还提供技术方案如下：
一种显示装置，包括有机发光二极管封装结构，其中所述有机发光二极管封装结构包括：
一有机发光二极管基板，所述有机发光二极管基板表面设置有有机发光二极管器件；
一封装基板，所述封装基板表面设置有用于吸收所述封装结构内部氧气的活泼金属膜层；
所述有机发光二极管基板和所述封装基板的边缘通过密封胶相粘合固定以形成密封腔，所述有机发光二极管器件和所述活泼金属膜层位于所述密封腔内。
在上述显示装置中，所述活泼金属膜层由至少一个活泼金属块组成，每一所述活泼金属块表面设置有至少一个不规则凸起。
在上述显示装置中，所述活泼金属膜层由至少一个活泼金属块组成，每一所述活泼金属块表面设置有至少一个不规则凸起。
在上述显示装置中，所述干燥剂层包括氧化钙或氧化锶中的至少一种。
 有益效果
相对现有技术，本发明提供的有机发光二极管封装结构及显示装置，其中，有机发光二极管基板和封装基板的边缘通过密封胶相粘合固定以形成密封腔，且有机发光二极管器件位于密封腔内，密封腔内还包括有吸收封装结构内部氧气的活泼金属膜层，即活泼金属膜层可以吸收密封腔内残留的或者外部渗入的氧气，从而可以达到有机发光二极管（OLED）器件对于氧渗透率的要求，改善有机发光二极管器件的老化问题，延长有机发光二极管器件和显示装置的使用寿命。
 附图说明
图1为一种现有的有机发光二极管封装结构的示意图；
图2为本发明实施例提供的一种有机发光二极管封装结构的示意图；
图3为本发明实施例提供的有机发光二极管封装结构的另一示意图；
图4为本发明实施例提供的有机发光二极管封装结构的另一示意图；
图5为本发明实施例提供的一种显示装置的结构示意图。
 本发明的最佳实施方式
请参照图式，其中相同的组件符号代表相同的组件，本发明的原理是以实施在一适当的运算环境中来举例说明。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。
请参考图2，图2为本发明实施例提供的一种有机发光二极管（即OLED）封装结构的示意图；其中所述有机发光二极管封装结构包括：
一有机发光二极管基板22，所述有机发光二极管基板22表面设置有有机发光二极管器件21；
一封装基板23，所述封装基板23表面设置有用于吸收所述封装结构内部氧气的活泼金属膜层25；
所述有机发光二极管基板22和所述封装基板23的边缘通过密封胶24相粘合固定以形成密封腔，所述有机发光二极管器件21和所述活泼金属膜层25位于所述密封腔内。
可以理解的是，所述有机发光二极管器件21设置于有机发光二极管基板22表面且位于密封腔内，所述有机发光二极管器件21包括阳极金属与阴极金属，以及设置于所述阳极金属与所述阴极金属之间的多层有机薄膜；若给两电极加电压，则有机薄膜会发光。
由于所述有机发光二极管基板22和所述封装基板23的边缘通过密封胶24相粘合固定，因此所述有机发光二极管基板22、所述封装基板23以及所述密封胶24形成一密封腔，所述密封腔即可认为所述封装结构内部。进一步的，在所述密封腔内还包括有设置于封装基板23表面的活泼金属膜层25，用于吸收封装结构内部氧气，即活泼金属膜层25可以吸收密封腔内残留的或者外部渗入的氧气，从而可以起到阻隔氧气的作用。
本实施例中，所述有机发光二极管基板22和所述封装基板23均为玻璃基板；优选的，密封胶为可以为UV（Ultraviolet Rays）胶，也称光敏胶和紫外光固化胶，将所述有机发光二极管基板22和所述封装基板23对准后，使用UV胶将两者粘合固定，其后UV胶采用UV灯照射固化起到密封作用。
优选的，所述活泼金属膜层25可以用物理气相沉积（PVD，Physical Vapor Deposition）机台溅射完成；进一步优选的，为了增大所述活泼金属膜层25与氧气接触的表面积，能有效的与氧气反应，可以在所述活泼金属膜层25表面设置有至少一个不规则凸起；其中，所述至少一个不规则凸起使用光刻（photo）/刻蚀的工艺进行制作。
请一并参考图3，为活泼金属膜层25的结构示意图，其中，所述活泼金属膜层25由至少一个活泼金属块251组成，即活泼金属膜层25可以包括多个与氧气反应的金属pattern；进一步的，可一并参考图4，为活泼金属膜层25的另一结构示意图，每一所述活泼金属块251表面设置有至少一个不规则凸起252，所述不规则凸起252的设置是为了增大每个金属pattern与氧气接触的表面积，使其能有效的与氧气反应；并且，可以使用光刻（photo）/刻蚀的工艺进行制作。
可以理解的是，所述金属pattern的具体尺寸可以按照实际应用中有机发光二极管封装结构的尺寸进行调整和确定，此处不作具体限定。
所述活泼金属膜层25可以为金属铝（Al）、金属铜（Cu）、金属银（Ag）膜层，本发明实施例优选为金属铜膜层，所述金属铜膜层与氧气反应的原理为：2Cu+O2=2CuO。
由上述可知，本发明实施例提供的有机发光二极管封装结构及显示装置，其中，有机发光二极管基板22和封装基板23的边缘通过密封胶24相粘合固定以形成密封腔，且有机发光二极管器件21位于密封腔内，密封腔内还包括有吸收封装结构内部氧气的活泼金属膜层25，即活泼金属膜层25可以吸收密封腔内残留的或者外部渗入的氧气，从而可以达到有机发光二极管（OLED）器件对于氧渗透率的要求，改善有机发光二极管器件的老化问题，延长有机发光二极管器件和显示装置的使用寿命。
作为更为优选的方式，所述活泼金属膜层25上还可以设置有用于吸收所述封装结构内部水汽的干燥剂层（图中未标示）。其中，所述干燥剂层包括氧化钙（CaO）或氧化锶（SrO）中的至少一种。
可以理解的是，所述干燥剂层可以为干燥剂微粒，所述干燥剂微粒可以具体为球状干燥剂，所述球状干燥剂的直径在0.04~0.07mm 之间。容易想到的是，其具体尺寸可以按照实际应用中有机发光二极管封装结构的尺寸进行调整和确定，此处不作具体限定。
由上述可知，本发明实施例提供的有机发光二极管封装结构，其中，有机发光二极管基板22和封装基板23的边缘通过密封胶24相粘合固定以形成密封腔，且有机发光二极管器件21位于密封腔内，密封腔内还包括有吸收封装结构内部氧气的活泼金属膜层25，即活泼金属膜层25可以吸收密封腔内残留的或者外部渗入的氧气，进一步优选的，密封腔内还包括有吸收封装结构内部水汽的干燥剂层，即可以吸收有机发光二极管（OLED）封装结构内的水汽和氧，从而可以同时达到有机发光二极管器件对于氧和水渗透率的要求，更好的改善有机发光二极管器件的老化问题，进一步延长有机发光二极管器件和显示装置的使用寿命。
为便于更好的实施本发明实施例提供的有机发光二极管封装结构，本发明实施例还提供一种包含所述有机发光二极管封装结构的显示装置。其中名词的含义与上述有机发光二极管封装结构中相同，具体实现细节可以参考有机发光二极管封装结构实施例中的说明。
请参考图5，图5为本发明提供的显示装置500的结构示意图，所述显示装置500包括背光源与显示面板，其中，所述背光源包括有机发光二极管封装结构501，其中，所述有机发光二极管封装结构501采用上述实施例提供的有机发光二极管封装结构，可一并参考图2、图3以及图4，所述有机发光二极管封装结构501包括：
一有机发光二极管基板22，所述有机发光二极管基板22表面设置有有机发光二极管器件21；
一封装基板23，所述封装基板23表面设置有用于吸收所述封装结构内部氧气的活泼金属膜层25；
所述有机发光二极管基板22和所述封装基板23的边缘通过密封胶24相粘合固定以形成密封腔，所述有机发光二极管器件21和所述活泼金属膜层25位于所述密封腔内。
可以理解的是，所述有机发光二极管器件21设置于有机发光二极管基板22表面且位于密封腔内，所述有机发光二极管器件21包括阳极金属与阴极金属，以及设置于所述阳极金属与所述阴极金属之间的多层有机薄膜；若给两电极加电压，则有机薄膜会发光。
由于所述有机发光二极管基板22和所述封装基板23的边缘通过密封胶24相粘合固定，因此所述有机发光二极管基板22、所述封装基板23以及所述密封胶24形成一密封腔，所述密封腔即可认为所述封装结构内部。进一步的，在所述密封腔内还包括有设置于封装基板23表面的活泼金属膜层25，用于吸收封装结构内部氧气，即活泼金属膜层25可以吸收密封腔内残留的或者外部渗入的氧气，从而可以起到阻隔氧气的作用。
本实施例中，所述有机发光二极管基板22和所述封装基板23均为玻璃基板；优选的，密封胶为可以为UV胶，也称光敏胶和紫外光固化胶，将所述有机发光二极管基板22和所述封装基板23对准后，使用UV胶将两者粘合固定，其后UV胶采用UV灯照射固化起到密封作用。
优选的，所述活泼金属膜层25可以用物理气相沉积PVD机台溅射完成；进一步优选的，为了增大所述活泼金属膜层25与氧气接触的表面积，能有效的与氧气反应，可以在所述活泼金属膜层25表面设置有至少一个不规则凸起；其中，所述至少一个不规则凸起使用光刻/刻蚀的工艺进行制作。
如图3所示，所述活泼金属膜层25由至少一个活泼金属块251组成，即活泼金属膜层25可以包括多个与氧气反应的金属pattern；进一步的，如图4所示，每一所述活泼金属块251表面设置有至少一个不规则凸起252，所述不规则凸起252的设置是为了增大每个金属pattern与氧气接触的表面积，使其能有效的与氧气反应；并且，可以使用光刻/刻蚀的工艺进行制作。
可以理解的是，所述金属pattern的具体尺寸可以按照实际应用中有机发光二极管封装结构的尺寸进行调整和确定，此处不作具体限定。
所述活泼金属膜层25可以为金属铝（Al）、金属铜（Cu）、金属银（Ag）膜层，本发明实施例优选为金属铜膜层，所述金属铜膜层与氧气反应的原理为：2Cu+O2=2CuO。
作为更为优选的方式，所述活泼金属膜层25上还可以设置有用于吸收所述封装结构内部水汽的干燥剂层。其中，所述干燥剂层包括氧化钙或氧化锶中的至少一种。
可以理解的是，所述干燥剂层可以为干燥剂微粒，所述干燥剂微粒可以具体为球状干燥剂，所述球状干燥剂的直径在0.04~0.07mm 之间。容易想到的是，其具体尺寸可以按照实际应用中有机发光二极管封装结构的尺寸进行调整和确定，此处不作具体限定。
由上述可知，本发明实施例提供的显示装置500，其中，有机发光二极管基板22和封装基板23的边缘通过密封胶24相粘合固定以形成密封腔，且有机发光二极管器件21位于密封腔内，密封腔内还包括有吸收封装结构内部氧气的活泼金属膜层25，即活泼金属膜层25可以吸收密封腔内残留的或者外部渗入的氧气，进一步优选的，密封腔内还包括有吸收封装结构内部水汽的干燥剂层，即可以吸收有机发光二极管（OLED）封装结构内的水汽和氧，从而可以同时达到有机发光二极管器件对于氧和水渗透率的要求，更好的改善有机发光二极管器件的老化问题，进一步延长有机发光二极管器件和显示装置的使用寿命。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见上文相关的详细描述，此处不再赘述。
本领域技术人员将认识到，本文所使用的词语“优选的”意指用作实例、示例或例证。奉文描述为“优选的”任意方面或设计不必被解释为比其他方面或设计更有利。相反，词语“优选的”的使用旨在以具体方式提出概念。如本申请中所使用的术语“或”旨在意指包含的“或”而非排除的“或”。即，除非另外指定或从上下文中清楚，“X使用101或102”意指自然包括排列的任意一个。即，如果X使用101；X使用102；或X使用101和102二者，则“X使用101或102”在前述任一示例中得到满足。
而且，尽管已经相对于一个或多个实现方式示出并描述了本公开，但是本领域技术人员基于对本说明书和附图的阅读和理解将会想到等价变型和修改。本公开包括所有这样的修改和变型，并且仅由所附权利要求的范围限制。特别地关于由上述组件（例如元件、资源等）执行的各种功能，用于描述这样的组件的术语旨在对应于执行所述组件的指定功能（例如其在功能上是等价的）的任意组件（除非另外指示），即使在结构上与执行本文所示的本公开的示范性实现方式中的功能的公开结构不等同。此外，尽管本公开的特定特征已经相对于若干实现方式中的仅一个被公开，但是这种特征可以与如可以对给定或特定应用而言是期望和有利的其他实现方式的一个或多个其他特征组合。而且，就术语“包括”、“具有”、“含有”或其变形被用在具体实施方式或权利要求中而言，这样的术语旨在以与术语“包含”相似的方式包括。
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 (14)

  1. 一种有机发光二极管封装结构，其中包括：
    一有机发光二极管基板，所述有机发光二极管基板表面设置有有机发光二极管器件；
    一封装基板，所述封装基板表面设置有用于吸收所述封装结构内部氧气的活泼金属膜层，所述活泼金属膜层表面设置有至少一个不规则凸起，所述活泼金属膜层为金属铜膜层；
    所述有机发光二极管基板和所述封装基板的边缘通过密封胶相粘合固定以形成密封腔，所述有机发光二极管器件和所述活泼金属膜层位于所述密封腔内。
  2. 根据权利要求1所述的有机发光二极管封装结构，其中所述活泼金属膜层由至少一个活泼金属块组成，每一所述活泼金属块表面设置有至少一个不规则凸起。
  3. 根据权利要求1所述的有机发光二极管封装结构，其中所述活泼金属膜层上设置有用于吸收所述封装结构内部水汽的干燥剂层。
  4. 根据权利要求3所述的有机发光二极管封装结构，其中所述干燥剂层包括氧化钙或氧化锶中的至少一种。
  5. 一种有机发光二极管封装结构，其中包括：
    一有机发光二极管基板，所述有机发光二极管基板表面设置有有机发光二极管器件；
    一封装基板，所述封装基板表面设置有用于吸收所述封装结构内部氧气的活泼金属膜层；
    所述有机发光二极管基板和所述封装基板的边缘通过密封胶相粘合固定以形成密封腔，所述有机发光二极管器件和所述活泼金属膜层位于所述密封腔内。
  6. 根据权利要求5所述的有机发光二极管封装结构，其中所述活泼金属膜层表面设置有至少一个不规则凸起。
  7. 根据权利要求5所述的有机发光二极管封装结构，其中所述活泼金属膜层由至少一个活泼金属块组成，每一所述活泼金属块表面设置有至少一个不规则凸起。
  8. 根据权利要求5所述的有机发光二极管封装结构，其中所述活泼金属膜层上设置有用于吸收所述封装结构内部水汽的干燥剂层。
  9. 根据权利要求8所述的有机发光二极管封装结构，其中所述干燥剂层包括氧化钙或氧化锶中的至少一种。
  10. 根据权利要求5所述的有机发光二极管封装结构，其中所述活泼金属膜层为金属铜膜层。
  11. 一种显示装置，包括有机发光二极管封装结构，其中所述有机发光二极管封装结构包括：
    一有机发光二极管基板，所述有机发光二极管基板表面设置有有机发光二极管器件；
    一封装基板，所述封装基板表面设置有用于吸收所述封装结构内部氧气的活泼金属膜层；
    所述有机发光二极管基板和所述封装基板的边缘通过密封胶相粘合固定以形成密封腔，所述有机发光二极管器件和所述活泼金属膜层位于所述密封腔内。
  12. 根据权利要求11所述的显示装置，其中所述活泼金属膜层由至少一个活泼金属块组成，每一所述活泼金属块表面设置有至少一个不规则凸起。
  13. 根据权利要求11所述的显示装置，其中所述活泼金属膜层上设置有用于吸收所述封装结构内部水汽的干燥剂层。
  14. 根据权利要求13所述的显示装置，其中所述干燥剂层包括氧化钙或氧化锶中的至少一种。
PCT/CN2014/087184 2014-09-03 2014-09-23 一种有机发光二极管封装结构及显示装置 Ceased WO2016033845A1 (zh)

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