WO2015085711A1 - 一种有机电致发光显示器件及显示装置 - Google Patents

一种有机电致发光显示器件及显示装置 Download PDF

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Publication number
WO2015085711A1
WO2015085711A1 PCT/CN2014/077620 CN2014077620W WO2015085711A1 WO 2015085711 A1 WO2015085711 A1 WO 2015085711A1 CN 2014077620 W CN2014077620 W CN 2014077620W WO 2015085711 A1 WO2015085711 A1 WO 2015085711A1
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WIPO (PCT)
Prior art keywords
film layer
display device
organic electroluminescent
layer
circular polarizer
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PCT/CN2014/077620
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English (en)
French (fr)
Inventor
王龙
曾庆慧
何璇
高雪
刘飞
邸云萍
Original Assignee
京东方科技集团股份有限公司
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Priority to US14/409,818 priority Critical patent/US9472780B2/en
Publication of WO2015085711A1 publication Critical patent/WO2015085711A1/zh

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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
    • H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/844—Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • 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
    • H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • 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
    • H10K59/40—OLEDs integrated with touch screens
    • 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
    • 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
    • H10K59/873—Encapsulations
    • 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
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates
    • H10K77/111—Flexible substrates
    • 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
    • H10K2102/311—Flexible OLED
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells

Definitions

  • the present invention relates to the field of display technologies, and more particularly to an organic electroluminescence display device and a display device. Background technique
  • OLEDs organic electroluminescence display devices
  • LCDs liquid crystal display devices
  • the structure of the OLED display device mainly comprises: a substrate, an organic electroluminescent pixel array fabricated on the substrate; wherein each of the organic electroluminescent pixel arrays comprises opposite anodes and cathodes, and anodes and cathodes A layer of light between the layers.
  • the luminescence of the OLED display device is achieved by exciting the organic material in the luminescent layer by the electrons in the cathode and the holes in the anode recombining in the luminescent layer.
  • the organic material used as the light-emitting layer and the active metal used as the cathode are extremely sensitive to moisture and oxygen. Therefore, the OLED display device needs to be supported by a higher packaging technology than other display devices.
  • the OLED display device package is not strong, moisture and oxygen may infiltrate into the interior of the display from the surrounding environment, thereby causing oxidation of the cathode metal and deterioration of the organic material of the light-emitting layer, resulting in shortened life of the OLED display device or directly causing fatal damage to the device. And affect the use.
  • the main package is packaged by means of a glass cover, and for flexible or large-sized OLED display devices, the existing method is mainly to simply package the OLED display device after thin film packaging.
  • the adhesion of the water-blocking oxygen protective film, and reducing the display contrast and visibility in order to reduce the reflection of the ambient light by the OLED display device, and further coating the circular polarizer after the water-blocking oxygen film is attached and
  • a touch film is separately attached between the water blocking oxygen protective film and the circular polarizer, and the structural schematic is as shown in FIG. 1 , including the substrate 1 and the organic electroluminescent pixel array 2 .
  • the package film 3 the water blocking oxygen protective film 4, the touch film 5, and the circular polarizer 6. It can be seen from the above that for flexible or large-sized OLED display devices, the existing packaging method requires three times of filming, which causes problems such as cumbersome process and high cost, and the three-time film also brings thicker thickness of the flexible device. A problem that causes difficulty in curling. Summary of the invention
  • the object of the present invention is to solve at least one of the above problems and deficiencies existing in the prior art.
  • Embodiments of the present invention provide an organic electroluminescence display device and a display device, which are used to solve the cumbersome process, cost increase, and flexible organic electroluminescent display device required by the conventional organic electroluminescence display device. The problem of curling is difficult.
  • an organic electroluminescence display device comprising: a substrate; an organic electroluminescence pixel array disposed on the substrate; and cladding the organic electroluminescence pixel a package film on the outer side of the array, wherein the organic electroluminescence display device further includes an optical film laminate on a light exiting side thereof; and the optical film laminate is a preformed integral member including a plurality of functional film layers.
  • the optical film laminate includes: a circular polarizer film layer; a protective film layer on a light incident side of the circular polarizer film layer; and the circular polarizer film The bonding layer on the light exit side of the layer.
  • the optical film laminate further includes: a first water-blocking oxygen film layer, wherein the first water-blocking oxygen film layer is located on a light-emitting side of the circular polarizer film layer And between the bonding layers; and/or the second water blocking oxygen film layer, the second water blocking oxygen film layer is located between the light incident side of the circular polarizer film layer and the protective film layer.
  • the optical film laminate further includes: a touch film layer, wherein the touch film layer is located on a light emitting side of the circular polarizer film layer and the bonding layer It is located between the light incident side of the circular polarizer film layer and the protective film layer.
  • the adhesive layer is attached to the organic electroluminescence The light exit side of the light display device.
  • the circular polarizer film layer includes a retardation film layer, a polarizing functional film layer, and a support film layer which are sequentially stacked; and the retardation film layer is the circularly polarized light On the light exit side of the film layer, the support film layer is on the light incident side of the circular polarizer film layer, and the polarized function film layer is located between the retardation film layer and the circular polarizer film layer.
  • the material of the polarizing functional film layer is polyvinyl alcohol or carbon nanotubes.
  • the circular polarizer film layer includes a retardation film layer and a polarizing functional film layer; and the retardation film layer is a light exiting side of the circular polarizer film layer.
  • the polarizing functional film layer is the light incident side of the circular polarizer film layer.
  • the material of the polarizing functional film layer is a carbon nanotube.
  • the material of the touch film layer is carbon nanotubes.
  • the touch film layer is located between a light incident side of the circular polarizer film layer and the protective film layer; and the circular polarizer film layer is Phase difference film layer.
  • the package film is located on a light exiting side of the organic electroluminescent display device, and the base substrate is located on a light incident side of the organic electroluminescent display device;
  • the optical film laminate is located on the outer side surface of the package film.
  • the encapsulation film is located on a light incident side of the organic electroluminescence display device, and the substrate substrate is located on a light exit side of the organic electroluminescence display device;
  • the optical film laminate is located on the outer side surface of the base substrate.
  • a method of fabricating an organic electroluminescence display device comprising the steps of:
  • the optical film laminate includes: a circular polarizer film layer including a retardation film layer, a polarizing functional film layer, and a support film layer which are sequentially stacked. a protective film layer on the light incident side of the circular polarizer film layer; and a bonding layer, a water blocking oxygen film layer, and a touch film layer on the light emitting side of the circular polarizer film layer.
  • the step of "pre-forming an optical film laminate including a plurality of functional film layers” includes: a retardation film layer, a polarizing functional film layer, and a support film layer Laminated together, wherein the polarizing functional film layer is located between the retardation film layer and the support film layer; a water blocking oxygen film layer is deposited on the outer side of the retardation film layer, and the adhesive is poured on the water blocking oxygen film layer Forming a bonding layer; and bonding the touch film layer on the outer side of the support film layer, and bonding the protective film layer on the outer side of the touch film layer.
  • the method before the phase difference film layer, the polarizing functional film layer and the support film layer are bonded together, the method further comprises: a phase difference film layer, a polarizing function film layer and a support The film layers were separately soaked and stretched.
  • the release layer is attached to the adhesive layer; and before the optical film laminate is attached, the release layer is removed to expose Bonding layer.
  • the material of the polarizing functional film layer is polyvinyl alcohol or carbon nanotubes.
  • a display device comprising the organic electroluminescence display device described in the foregoing embodiments.
  • FIG. 1 is a schematic structural view of a conventional organic electroluminescence display device
  • FIGS. 2a and 2b are schematic structural views of an organic electroluminescent display device according to an embodiment of the present invention.
  • FIG. 3a to 3g are respectively schematic structural views of an optical film laminate according to an embodiment of the present invention
  • FIG. 4 is a view showing a roll-to-roll mode in a method for preparing an optical film laminate according to an embodiment of the present invention
  • Intention is a view showing a roll-to-roll mode in a method for preparing an optical film laminate according to an embodiment of the present invention
  • an organic electroluminescence display device comprising: a substrate; an organic electroluminescence pixel array disposed on the substrate; and cladding the organic electroluminescence a package film on the outer side of the pixel array, wherein the organic electroluminescence display device further includes an optical film laminate on a light exiting side thereof; and the optical film laminate is a preformed integral component including a plurality of functional film layers .
  • each layer of the film in the drawings does not reflect the true proportion of the organic electroluminescent display device, and the purpose is only to illustrate the contents of the present invention.
  • An organic electroluminescent display device includes a substrate substrate 02, and an organic electroluminescent pixel array 03 disposed on the substrate substrate 02 is coated with The package film 04 on the outer side of the electroluminescent pixel array 03 is further provided with an optical film laminate 01 on the light-emitting side of the organic electroluminescence display device (the specific structure of the optical film laminate is not shown in FIGS. 2a and 2b) ;
  • the specific structure of the optical film laminate 01 is as shown in FIG. 3a to FIG. 3g, and includes: a circular polarizer film layer 001, a protective film layer 002 located on the light incident side of the circular polarizer film layer 001, located in the circular polarizer film layer 001 a bonding layer 003 on the light-emitting side, a water-blocking oxygen film layer 004, and a touch film layer 005;
  • the water blocking oxygen film layer 004 is located between the light emitting side of the circular polarizer film layer 001 and the bonding layer 003, and/or between the light incident side of the circular polarizer film layer 001 and the protective film layer 002;
  • the touch film layer 005 is located between the light exiting side of the circular polarizer film layer 001 and the adhesive layer 003, or between the light incident side of the circular polarizer film layer 001 and the protective film layer 002;
  • the bonding layer 003 is attached to the light-emitting side of the organic electroluminescence display device.
  • an optical film laminate is disposed on the light-emitting side of the organic electroluminescence display device, and the optical film laminate includes a circular polarizer film layer and a water-blocking oxygen film.
  • the OLED display device provided by the embodiment of the present invention only needs to be used once, and the touch OLED layer can be combined with the OLED display device.
  • the film coating process can solve the problem that the existing OLED display device has to adhere to the water and oxygen film layer and the circular polarizer film layer, and also uses the touch film layer, thereby reducing the manufacturing process difficulty of the OLED display device;
  • the display device has the advantages of being lighter and thinner, lower in cost, and better in display effect; for the flexible OLED display device, the problem of difficulty in curling due to thick thickness of the device can be avoided.
  • the light-emitting side of the organic electroluminescence display device is one side of the package film 04, that is, the light-emitting type of the organic electroluminescence display device is a top emission type, and the optical film laminate is located on the package film 04.
  • the light-emitting side of the organic electroluminescence display device is one side of the base substrate 02, that is, the light-emitting type of the organic electroluminescence display device is a bottom emission type
  • the optical film laminate 01 is located on the base substrate 02. 3d, 3e, 3f, and 3g, in the optical film laminate 01
  • the water-blocking oxygen film layer 004 is preferably located between the light-emitting side of the circular polarizer film layer 001 and the bonding layer 003, thus
  • the water-oxygen film layer is relatively close to the organic electroluminescent pixel array in the OLED display device, so that the organic electroluminescent pixel array can be better protected against water and oxygen.
  • the water-blocking oxygen film layer 004 may be disposed between the light-incident side of the circular polarizer film layer 001 and the protective film layer 002, which is not limited herein.
  • the protection against oxygen is weaker. Therefore, when the optical film laminate 01 is specifically designed, the water-blocking oxygen film layer 004 should be placed as close as possible to the adhesive layer 003.
  • the organic electroluminescent pixel array in the optical film laminate 01, can be protected from water and oxygen.
  • a plurality of water-blocking oxygen film layers 004 are disposed, as shown in FIG. 3c, between the light-emitting side of the circular polarizing film layer 001 and the bonding layer 003, and on the light-incident side and the protective film of the circular polarizing film layer 001.
  • a water blocking oxygen film layer 004 is disposed between the layers 002. In this way, the organic electroluminescent pixel array in the OLED display device can be double-proofed and anti-oxidized, but this also increases the overall thickness of the OLED display device.
  • the number of layers of the water oxygen film layer As shown in the figure, when the water blocking oxygen film layer 004 is disposed on both sides of the circular polarizer film layer 001, the structure of the water blocking oxygen film layer 004 located on both sides of the circular polarizing film layer 001 may be the same or different. There is no limit here.
  • the water blocking oxygen film layer may be an inorganic metal or an oxide.
  • the material of the water blocking oxygen film layer is aluminum oxide (A1203).
  • One or a combination of titanium dioxide (Ti02), silicon nitride (SiNx) or silicon carbide (SiC); the thickness of the water-blocking oxygen film layer is preferably controlled between 10 nm and 10000 ⁇ m.
  • the touch film layer 005 when the touch film layer 005 is located between the light exiting side of the circular polarizer film layer 001 and the adhesive layer 003, as shown in FIG. 3a and FIG. 3b.
  • the touch film layer 005 is preferably located between the light exiting side of the circular polarizer film layer 001 and the water blocking oxygen film layer 004, so that reflection by the touch film layer can be avoided, and
  • the water-blocking oxygen film layer is relatively close to the organic electroluminescent pixel array in the OLED display device, so that it can be better
  • the organic electroluminescent pixel array provides protection against water and oxygen.
  • the touch film layer 005 may also be located between the water blocking oxygen film layer 004 and the bonding layer 003, which is not limited herein. As shown in FIG. 3f and FIG. 3g, the touch film layer 005 may be located between the light incident side of the circular polarizer film layer 001 and the protective film layer 002, which is not limited herein.
  • the film layer 001 mainly functions to prevent the passage of the reflected light. As shown in FIG. 3a, FIG. 3b and FIG. 3d, the film layer 001 may include: a phase difference film layer 0011, a polarizing function film layer 0012, and a support film layer 0013 which are sequentially stacked;
  • the retardation film layer 0011 is the light-emitting side of the circular polarizer film layer 001
  • the support film layer 0013 is the light-incident side of the circular polarizer film layer 001.
  • the main function of the support film layer 0013 is to support and protect the polarizing function film layer 0012; the main function of the polarizing function film layer 0012 is to convert the natural light passing through the polarizing function film layer 0012 into linearly polarized light;
  • the film layer 0011 is preferably a quarter-wave retarder, and its main function is to change the passing linearly polarized light into circularly polarized light or to pass the circularly polarized light into linearly polarized light.
  • the polarizing functional film layer 0012 and the retardation film layer 0011 are combined, natural light is incident from the polarizing functional film layer 0012, and becomes linearly polarized light after the polarizing functional film layer 0012, and then the linearly polarized light passes through the retardation film layer 0011 and then passes through the line.
  • the polarized light becomes left-handed circularly polarized light, and then, after the left-handed circularly polarized light is reflected back, it becomes right-handed circularly polarized light, passes through the retardation film layer 0011 again, and changes from right-handed circularly polarized light to linearly polarized light.
  • the material of the film layer may be polyvinyl alcohol (PVA) or carbon nanotubes (CNT), which is not limited herein.
  • PVA polyvinyl alcohol
  • CNT carbon nanotubes
  • the P VA material can also be modified to make the PVA have a hydrophobic function, so that not only the possibility of hydrolysis of the polarizing functional film layer of the PVA material but also the polarization can be reduced.
  • the functional film layer can better play the role of polarizing; at the same time, it can also protect the organic electroluminescent pixel array.
  • the material of the energy layer 0012 is selected from a carbon nanotube material
  • the polarizing functional film layer is formed by laminating 10 to 30 layers of super-aligned carbon nanotube films, and each of the carbon nanotube films is extended along the direction of the carbon nanotubes.
  • the carbon nanotubes of uniform size are connected end to end and arranged in a preferred orientation in the same direction.
  • the polarizing functional film layer made of carbon nanotubes has a uniform absorption property for light of each wavelength compared to the polarizing functional film layer made of polyvinyl alcohol, and the nanotubes have uniform absorption characteristics. It has high temperature resistance, high humidity resistance, excellent flexibility and light transmittance. Therefore, the polarizing functional film made of carbon nanotubes is not only suitable for general OLED display devices and flexible display devices, but also can be used in high temperature and high humidity. Application under conditions. At the same time, the nanotubes have self-supporting ability. Therefore, the carbon nanotubes are used to fabricate the polarizing functional film layer in the circular polarizing film layer, which can eliminate the setting of the supporting film layer and make the structure and preparation process of the OLED display device simpler.
  • the circular polarizer film layer 001 includes only: a retardation film layer 0011 and a polarizing functional film layer 0012;
  • the retardation film layer 0011 is the light exit side of the circular polarizer film layer 001, and the polarizing function film layer 0012 is the light incident side of the circular polarizer film layer 001;
  • the material of the polarizing functional film layer 0012 is carbon nanotubes.
  • the carbon nanotube array can be obtained by chemical vapor deposition, and then a super-aligned carbon nanotube film is obtained by pulling from the carbon nanotube array with a stretching tool. Further, it is preferable that the total thickness of the polarizing functional film layer of the carbon nanotube material is controlled to be between 10 ⁇ m and 100 ⁇ m.
  • the material of the touch film layer may be carbon nanotubes, and the flexibility of the carbon nanotube film is better than that of the ITO film.
  • the material of the touch film layer may also be indium tin oxide ITO, which is not limited herein.
  • the touch film layer when the material of the touch film layer is carbon nanotubes, the touch film layer may be composed of 10 to 30 layers of super-aligned carbon nanotubes.
  • the thin films are laminated.
  • carbon nanotubes of uniform size are arranged end to end and arranged in the same direction along the direction in which the carbon nanotubes extend.
  • the touch film layer can also be a general carbon nanotube film, and then formed into a touch sensing component with a special pattern.
  • the touch film layer 005 of the carbon nanotube material can be disposed between the light incident side of the circular polarizer film layer 001 and the protective film layer 002, and the circular polarizer film layer 001 is a retardation film layer.
  • the touch film layer not only undertakes the touch function, but also has the polarizing function, and combined with the phase difference film layer, can function as an anti-reflection function, so that the polarizing film layer is not separately provided in the circular polarizing film layer.
  • the OLED display device can be made lighter and thinner.
  • the luminescent pixel array can include a plurality of organic electroluminescent structures consisting of an anode, a cathode, and a luminescent layer between the anode and the cathode. Specifically, the specific structure of the organic electroluminescent pixel array is a prior art and will not be described herein.
  • the optical film laminate can be prepared by a roll-to-roll method, and the optical film laminate shown in FIG. 3d is prepared as an example. A method of preparing the above organic electroluminescence display device will be described.
  • the optical film laminate shown in Fig. 3d is prepared by a roll-to-roll method, and a schematic view of a specific process is shown in Fig. 4.
  • the three are laminated by a roll-to-roll method
  • a water blocking oxygen film layer 004 is deposited on one side of the phase difference film layer 0011; Then, the release layer 006 is to be bonded to the side of the water-blocking oxygen film layer 004; the release layer 006 is attached to the side of the water-blocking oxygen film layer 004 by a roll-to-roll method. Forming a bonding layer 003 between the water blocking oxygen film layer 004 and the release layer 006;
  • the touch film layer 005 is attached to one side of the support film layer 0013 by a roll-to-roll method
  • the protective film layer 002 is bonded to one side of the touch film layer 005 by a roll-to-roll method to form an optical film laminate 01.
  • release layer there is no release layer in FIG. 3d because the purpose of preparing the release layer is to protect the bonding layer in the optical film laminate before being attached to the organic electroluminescent display device.
  • the optical film laminate is attached to the organic electroluminescence display device, it is necessary to peel off the release layer so that the adhesive layer is directly attached to the light-emitting side of the organic electroluminescence display device.
  • an embodiment of the present invention further provides a display device, including the above-mentioned organic electroluminescent display device provided by the embodiment of the present invention, the principle of solving the problem by the display device and the foregoing organic electroluminescent display device.
  • the implementation of the display device can be referred to the implementation of the foregoing organic electroluminescent display device, and the repeated description is omitted.
  • An organic electroluminescence display device and a display device provided by an embodiment of the invention include a substrate, an organic electroluminescent pixel array disposed on the substrate, and a package film coated on the outside of the organic electroluminescent pixel array
  • An optical film laminate is further disposed on the light-emitting side of the organic electroluminescence display device; since the optical film laminate includes a circular polarizer film layer, a water-blocking oxygen film layer, and a touch film layer, the anti-reflection layer can be combined.
  • the function of the OLED display device provided by the embodiment of the present invention can solve the problem that the existing OLED display device needs to be attached only by one film coating process, compared with the existing OLED display device.
  • the water-blocking oxygen film layer is also coated with a circular polarizer film layer, and the problem of the touch film layer is also used, thereby reducing the manufacturing process difficulty of the OLED display device; and making the OLED display device lighter, lower in cost, and more display effect. Good advantages; For flexible OLED display devices, the problem of difficulty in curling due to thicker device thickness can also be avoided.
  • the spirit and scope of the Ming Thus, if such modifications and variations of the present invention are within the scope of the present invention The present invention is also intended to cover such modifications and variations within the scope of the equivalents.

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  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

提供一种有机电致发光显示器件及显示装置，在该有机电致发光显示器件的出光侧设置有光学薄膜层叠体（01），由于该光学薄膜层叠体（01）包括有圆偏光片膜层（001）、阻水氧膜层（004）和触控膜层（005），因此可以兼具抗反射功能、良好的阻水氧性能和触控功能，因此与现有的有机电致发光显示器件相比，提供的上述有机电致发光显示器件只需要一次贴膜工艺就可以解决现有有机电致发光显示器件既要贴阻水氧膜层又要贴圆偏光片膜层，还用贴触控膜层的问题，从而降低有机电致发光显示器件的制备工艺难度；并且使有机电致发光显示器件具有更轻薄、成本更低、显示效果更好等优点；对于柔性有机电致发光显示器件，还可避免因器件厚度较厚所导致的卷曲困难的问题。

Description

一种有机电致发光显示器件及显示装置 技术领域
本发明涉及显示技术领域， 尤指一种有机电致发光显示器件及显示装置。 背景技术
目前，有机电致发光显示器件（ Organic Electroluminesecent Display, OLED ) 与传统的液晶显示器件（Liquid Crystal Display, LCD )相比，由于具有响应快、 色域广、 超薄、 能实现柔性化等特点， 已经逐渐成为显示领域的主流。
OLED显示器件的结构主要包括： 衬底基板， 制作在衬底基板上的有机电 致发光像素阵列； 其中， 每个有机电致发光像素阵列都包含相对设置的阳极和 阴极， 以及位于阳极和阴极之间的发光层。 OLED显示器件的发光是通过阴极 中的电子和阳极中的空穴在发光层中复合时， 激发发光层中的有机材料发光来 实现的。 而在 OLED显示器件中， 用作发光层的有机材料以及用作阴极的活泼 金属对水气和氧气都极其敏感， 因此， OLED显示器件需要比其他的显示器件 更高的封装技术的支持。 如果 OLED显示器件封装不牢固， 水气和氧气会从周 围环境渗入到显示器的内部，从而造成阴极金属的氧化和发光层有机材料的变 质，使得 OLED显示器件寿命缩短，或者直接导致器件致命的损坏而影响使用。
目前，在中小尺寸的 OLED显示器件中， 主要釆用玻璃盖板的封装方式进 行封装，而对于柔性或者大尺寸的 OLED显示器件，现有的方法主要是对 OLED 显示器件简单进行薄膜封装后再进行阻水氧保护膜的贴覆， 并且为了降低环境 光被 OLED显示器件反射而降低显示对比度和可视性，在阻水氧膜的贴覆后还 需再贴覆圓偏光片， 另外， 在触摸式 OLED显示器中， 在阻水氧保护膜和圓偏 光片之间，还需要单独贴覆触控膜，结构示意图如图 1所示，包括衬底基板 1、 有机电致发光像素阵列 2、封装薄膜 3、 阻水氧保护膜 4、 触控膜 5和圓偏光片 6。 由上述可知，对于柔性或者大尺寸的 OLED显示器件， 现有的封装方法需 要进行三次贴膜， 从而会带来工艺繁瑣、 成本升高等问题， 并且三次贴膜还会 带来使柔性器件厚度变厚， 导致卷曲困难的问题。 发明内容
本发明的目的旨在解决现有技术中存在的上述问题和缺陷的至少一个方 面。
本发明实施例提供了一种有机电致发光显示器件及显示装置， 用以解决现 有的有机电致发光显示器件需要三次贴膜带来的工艺繁瑣、成本升高以及柔性 有机电致发光显示器件卷曲困难的问题。
根据本发明的一个方面， 提供一种有机电致发光显示器件， 包括： 衬底基 板； 设置在所述衬底基板上的有机电致发光像素阵列； 和包覆在所述有机电致 发光像素阵列外侧的封装薄膜， 其中， 所述有机电致发光显示器件还包括位于 其出光侧的光学薄膜层叠体； 并且所述光学薄膜层叠体为预先形成的、 包括多 个功能膜层的整体部件。
根据本发明的一个实例性的实施例， 所述光学薄膜层叠体包括： 圓偏光片 膜层； 位于所述圓偏光片膜层的入光侧的保护膜层； 和位于所述圓偏光片膜层 的出光侧的粘结层。
根据本发明的另一个实例性的实施例， 所述光学薄膜层叠体还包括： 第一 阻水氧膜层， 所述第一阻水氧膜层位于所述圓偏光片膜层的出光侧与所述粘结 层之间的；和 /或第二阻水氧膜层，所述第二阻水氧膜层位于所述圓偏光片膜层 的入光侧与所述保护膜层之间。
根据本发明的另一个实例性的实施例， 所述光学薄膜层叠体还包括： 触控 膜层， 所述触控膜层位于所述圓偏光片膜层的出光侧与所述粘结层之间或位于 所述圓偏光片膜层的入光侧与所述保护膜层之间。
根据本发明的另一个实例性的实施例， 所述粘结层贴覆于所述有机电致发 光显示器件的出光侧。
根据本发明的另一个实例性的实施例， 所述圓偏光片膜层包括依次层叠设 置的相位差膜层、 偏光功能膜层和支撑膜层； 并且所述相位差膜层为所述圓偏 光片膜层的出光侧， 所述支撑膜层为所述圓偏光片膜层的入光侧， 所述偏光功 能膜层位于所述相位差膜层和所述圓偏光片膜层之间。
才艮据本发明的另一个实例性的实施例， 所述偏光功能膜层的材料为聚乙烯 醇或者碳纳米管。
根据本发明的另一个实例性的实施例， 所述圓偏光片膜层包括相位差膜层 和偏光功能膜层； 并且所述相位差膜层为所述圓偏光片膜层的出光侧， 所述偏 光功能膜层为所述圓偏光片膜层的入光侧。
根据本发明的另一个实例性的实施例， 所述偏光功能膜层的材料为碳纳米 管。
根据本发明的另一个实例性的实施例， 所述触控膜层的材料为碳纳米管。 才艮据本发明的另一个实例性的实施例， 所述触控膜层位于所述圆偏光片膜 层的入光侧与所述保护膜层之间； 并且所述圓偏光片膜层为相位差膜层。
根据本发明的另一个实例性的实施例， 所述封装薄膜位于所述有机电致发 光显示器件的出光侧， 所述衬底基板位于所述有机电致发光显示器件的入光侧; 并且所述光学薄膜层叠体位于所述封装薄膜的外侧面上。
根据本发明的另一个实例性的实施例， 所述封装薄膜位于所述有机电致发 光显示器件的入光侧， 所述衬底基板位于所述有机电致发光显示器件的出光侧； 并且所述光学薄膜层叠体位于所述衬底基板的外侧面上。
根据本发明的另一个方面， 提供一种有机电致发光显示器件的制造方法， 包括以下步骤：
预先形成一个包括多个功能膜层的光学薄膜层叠体； 和
通过一次贴膜工艺将预先形成的所述光学薄膜层叠体贴附在所述有机电 致发光显示器件的有机电致发光像素阵列的出光侧。 根据本发明的一个实例性的实施例， 所述光学薄膜层叠体包括： 圓偏光片 膜层， 所述圓偏光片膜层包括依次层叠设置的相位差膜层、 偏光功能膜层和支 撑膜层； 位于所述圓偏光片膜层的入光侧的保护膜层； 和位于所述圆偏光片膜 层的出光侧的粘结层、 阻水氧膜层和触控膜层。
才艮据本发明的另一个实例性的实施例， 所述 "预先形成一个包括多个功能 膜层的光学薄膜层叠体" 的步骤包括： 将相位差膜层、 偏光功能膜层和支撑膜 层贴合在一起， 其中偏光功能膜层位于相位差膜层和支撑膜层之间； 在相位差 膜层的外侧上沉积阻水氧膜层， 并在阻水氧膜层上倾倒粘结胶以形成粘结层； 和在支撑膜层的外侧上贴合触控膜层， 并在触控膜层的外侧上贴合保护膜层。
才艮据本发明的另一个实例性的实施例， 在将相位差膜层、 偏光功能膜层和 支撑膜层贴合在一起之前， 还包括： 对相位差膜层、 偏光功能膜层和支撑膜层 分别进行浸泡和拉伸。
根据本发明的另一个实例性的实施例， 在形成粘结层之后， 在所述粘结层 上贴合离型层； 并且在贴附光学薄膜层叠体之前， 去除该离型层， 以便露出粘 结层。
才艮据本发明的另一个实例性的实施例， 所述偏光功能膜层的材料为聚乙烯 醇或者碳纳米管。
根据本发明的另一个方面， 提供一种显示装置， 包括前述实施例所描述的 有机电致发光显示器件。 附图说明
图 1为现有的有机电致发光显示器件的结构示意图；
图 2a和图 2b分别为本发明实施例提供的有机电致发光显示器件的结构示 意图；
图 3a至图 3g分别为本发明实施例提供的光学薄膜层叠体的结构示意图； 图 4为本发明实施例提供的光学薄膜层叠体制备方法中的卷对卷方式的示 意图。 具体实施方式
下面通过实施例，并结合附图，对本发明的技术方案作进一步具体的说明。 在说明书中， 相同或相似的附图标号指示相同或相似的部件。 下述参照附图对 本发明实施方式的说明旨在对本发明的总体发明构思进行解释， 而不应当理解 为对本发明的一种限制。
根据本发明的一个总体构思， 提供一种有机电致发光显示器件， 包括： 衬 底基板； 设置在所述衬底基板上的有机电致发光像素阵列； 和包覆在所述有机 电致发光像素阵列外侧的封装薄膜， 其中， 所述有机电致发光显示器件还包括 位于其出光侧的光学薄膜层叠体； 并且所述光学薄膜层叠体为预先形成的、 包 括多个功能膜层的整体部件。 的具体实施方式进行详细地说明。
其中， 附图中各层薄膜厚度不反映有机电致发光显示器件的真实比例， 目 的只是示意说明本发明内容。
本发明实施例提供的一种有机电致发光显示器件， 如图 2a和图 2b所示， 包括衬底基板 02, 设置在衬底基板 02上的有机电致发光像素阵列 03 , 包覆在 有机电致发光像素阵列 03外侧的封装薄膜 04, 在该有机电致发光显示器件的 出光侧还设置有光学薄膜层叠体 01 (光学薄膜层叠体的具体结构在图 2a和图 2b中未示出 );
光学薄膜层叠体 01的具体结构如图 3a至图 3g所示， 包括： 圆偏光片膜 层 001 , 位于圓偏光片膜层 001的入光侧的保护膜层 002, 位于圓偏光片膜层 001的出光侧的粘结层 003 , 阻水氧膜层 004以及触控膜层 005; 其中，
阻水氧膜层 004位于圓偏光片膜层 001 的出光侧与粘结层 003之间， 和 / 或， 位于圓偏光片膜层 001的入光侧与保护膜层 002之间； 触控膜层 005位于圓偏光片膜层 001的出光侧与粘结层 003之间， 或位于 圓偏光片膜层 001的入光侧与保护膜层 002之间；
粘结层 003贴覆于有机电致发光显示器件的出光侧。
本发明实施例提供的上述有机电致发光显示器件，在该有机电致发光显示 器件的出光侧设置有光学薄膜层叠体， 由于该光学薄膜层叠体包括有圓偏光片 膜层、 阻水氧膜层和触控膜层， 因此可以兼具抗反射功能、 良好的阻水氧性能 和触控功能， 因此与现有的 OLED 显示器件相比， 本发明实施例提供的上述 OLED显示器件只需要一次贴膜工艺就可以解决现有 OLED显示器件既要贴阻 水氧膜层又要贴圓偏光片膜层， 还用贴触控膜层的问题， 从而降低 OLED显示 器件的制备工艺难度； 并且使 OLED显示器件具有更轻薄、 成本更低、 显示效 果更好等优点； 对于柔性 OLED显示器件，还可避免因器件厚度较厚所导致的 卷曲困难的问题。 所示， 有机电致发光显示器件的出光侧为封装薄膜 04的一侧， 即该有机电致 发光显示器件的发光类型为顶发射型， 光学薄膜层叠体位于该封装薄膜 04之 上。 示， 有机电致发光显示器件的出光侧为衬底基板 02的一侧， 即该有机电致发 光显示器件的发光类型为底发射型， 光学薄膜层叠体 01位于该衬底基板 02之 上。 图 3d、 图 3e、 图 3f和图 3g所示， 在光学薄膜层叠体 01中， 阻水氧膜层 004 优选位于圓偏光片膜层 001的出光侧与粘结层 003之间， 这样， 阻水氧膜层距 OLED显示器件中有机电致发光像素阵列的距离就相对较近， 从而可以更好的 对有机电致发光像素阵列起到防水和防氧的保护作用。
当然， 在具体实施时， 在本发明实施例提供的上述有机电致发光显示器件 中， 如图 3b所示， 阻水氧膜层 004也可以设置于圓偏光片膜层 001的入光侧 与保护膜层 002之间， 在此不做限定。
需要说明的是， 阻水氧膜层 004越靠近保护膜层 002, 阻水氧膜层 004越 远离 OLED显示器件中的有机电致发光像素阵列，其对于有机电致发光像素阵 列起到防水和防氧的保护作用越弱， 因此， 具体设计光学薄膜层叠体 01 时， 应该将阻水氧膜层 004设置在尽量靠近粘结层 003。
较佳地， 为了更近一步地对有机电致发光像素阵列起到防水和防氧的保护 作用， 在本发明实施例提供的上述有机电致发光显示器件中， 在光学薄膜层叠 体 01中可以设置多个阻水氧膜层 004,如图 3c所示，可以在圓偏光片膜层 001 的出光侧与粘结层 003之间，以及在圓偏光片膜层 001的入光侧与保护膜层 002 之间都设置阻水氧膜层 004。 这样， 就可以对 OLED显示器件中的有机电致发 光像素阵列起到双重的防水、 防氧作用，但是这样也会使 OLED显示器件的整 体厚度增加， 因此， 可以根据实际需要， 设置所需阻水氧膜层的层数。 所示， 当在圓偏光片膜层 001的两侧都设置有阻水氧膜层 004时， 位于圓偏光 片膜层 001两侧的阻水氧膜层 004的结构可以相同， 也可以不同， 在此不做限 定。
具体地， 在本发明实施例提供的上述有机电致发光显示器件中， 阻水氧膜 层可以为无机金属或氧化物，较佳地，阻水氧膜层的材料为三氧化二铝（ A1203 )、 二氧化钛（ Ti02 )、 氮化硅 ( SiNx )或碳化硅 ( SiC ) 中之一或组合； 阻水氧膜 层的厚度控制在 10nm〜： lOOum之间为佳。
具体地， 在本发明实施例提供的上述有机电致发光显示器件中， 当触控膜 层 005位于圓偏光片膜层 001的出光侧与粘结层 003之间时，如图 3a、图 3b、 图 3c和图 3e所示， 触控膜层 005优选位于圓偏光片膜层 001的出光侧与阻水 氧膜层 004之间， 这样， 不仅可以避免因触控膜层造成的反射， 且阻水氧膜层 距 OLED显示器件中有机电致发光像素阵列的距离就相对较近，从而可以更好 的对有机电致发光像素阵列起到防水和防氧的保护作用。 当然， 触控膜层 005 也可以位于阻水氧膜层 004与粘结层 003之间， 在此不做限定。 图 3f和图 3g所示， 触控膜层 005还可以位于圓偏光片膜层 001的入光侧与保 护膜层 002之间， 在此不做限定。 膜层 001主要起防止反射光通过的作用， 如图 3a、 图 3b和图 3d所示， 可以包 括： 依次层叠设置的相位差膜层 0011、 偏光功能膜层 0012和支撑膜层 0013; 其中，
相位差膜层 0011为该圓偏光片膜层 001的出光侧， 支撑膜层 0013为圓偏 光片膜层 001的入光侧。
具体地， 支撑膜层 0013的主要作用是对偏光功能膜层 0012起支撑和保护 作用； 偏光功能膜层 0012的主要作用是将通过该偏光功能膜层 0012的自然光 转变为线偏振光； 相位差膜层 0011 优选为四分之一波长延迟片， 主要作用是 使通过的线偏振光变为圓偏振光， 或将通过的圓偏振光变为线偏振光。 将偏光 功能膜层 0012和相位差膜层 0011结合， 自然光从偏光功能膜层 0012入射， 经偏光功能膜层 0012 之后变为线偏振光， 然后该线偏振光经过相位差膜层 0011之后从线偏振光变为左旋圓偏振光，之后， 当该左旋圓偏振光被反射回来 后， 变为右旋圓偏振光， 再次经过相位差膜层 0011 , 从右旋圓偏振光变为线偏 振光， 此时的线偏振光与之前的线偏振光呈垂直状态， 不能通过线偏光片， 这 样反射光就不能够从该偏光功能膜层 0012透过， 从而减小环境光的影响， 提 高对比度。 膜层的材料可以为聚乙烯醇（PVA ), 也可以为碳纳米管 （CNT ), 在此不做限 定。 功能膜层 0012的材料选用聚乙烯醇材料 PVA时，还可以对 P VA材料进行改性， 使 PVA具有疏水功能， 这样， 不仅可以降低 PVA材料的偏光功能膜层发生水 解的可能性， 使偏光功能膜层更好的发挥偏光的作用； 同时， 当还可以对有机 电致发光像素阵列起到保护作用。 能膜层 0012的材料选用碳纳米管材料时， 该偏光功能膜层由 10~30层超顺排 列的碳纳米管薄膜层叠而成，每层碳纳米管薄膜中，在沿碳纳米管延伸方向上， 尺寸均一的碳纳米管首尾相连且沿同一方向择优取向排列。
进一步地， 釆用碳纳米管制作的偏光功能膜层与釆用聚乙烯醇制作的偏光 功能膜层相比， 由于超顺排碳纳米管对各波长的光具有均一的吸收特性， 且纳 米管的耐高温、 高湿能力强， 柔韧性和光透过性优良， 因此， 釆用碳纳米管制 作的偏光功能膜层不仅适合一般的 OLED显示器件和柔性显示器件，而且可在 高温高湿等恶劣条件下应用。 同时， 纳米管具有自支撑能力， 因此采用碳纳米 管制作圓偏光片膜层中的偏光功能膜层， 可以省掉支撑膜层的设置， 使 OLED 显示器件的结构和制备工艺更简单。
这样， 在釆用碳纳米管制作圓偏光片膜层中的偏光功能膜层时， 在本发明 实施例提供的上述有机电致发光显示器件中， 如图 3c、 图 3e和图 3f所示， 圓 偏光片膜层 001仅包括： 相位差膜层 0011和偏光功能膜层 0012; 其中，
相位差膜层 0011为圓偏光片膜层 001的出光侧， 偏光功能膜层 0012为圓 偏光片膜层 001的入光侧；
偏光功能膜层 0012的材料为碳纳米管。
具体地， 在具体实施时， 可以通过化学气相沉积法得到碳纳米管阵列， 然 后釆用一拉伸工具从碳纳米管阵列中拉取得到超顺排的碳纳米管薄膜。进一步 地， 碳纳米管材料的偏光功能膜层总厚度控制在 10 μ m~100 μ m之间为佳。
较佳地， 在本发明实施例提供的上述有机电致发光显示器件中， 触控膜层 的材料可以为碳纳米管， 由于相比 ITO薄膜， 碳纳米管薄膜的柔韧性更好， 有 助于制备柔性 OLED显示器件；当然，触控膜层的材料也可以为铟锡氧化物 ITO, 在此不做限定。
具体地， 在本发明实施例提供的上述有机电致发光显示器件中， 当触控膜 层的材料为碳纳米管时，该触控膜层可以由 10~30层超顺排列的碳纳米管薄膜 层叠而成， 每层碳纳米管薄膜中， 在沿碳纳米管延伸方向上， 尺寸均一的碳纳 米管首尾相连且沿同一方向择优取向排列。 当然， 触控膜层也可以为一般的碳 纳米管薄膜， 然后制作成有特殊图案的触控感应部件。
较佳地， 在本发明实施例提供的上述有机电致发光显示器件中， 当触控膜 层的材料为碳纳米管时， 由于超顺排列的碳纳米管可以起偏光作用， 因此， 如 图 3g所示， 可以将碳纳米管材料的触控膜层 005设置于圓偏光片膜层 001的 入光侧与保护膜层 002之间， 同时， 圓偏光片膜层 001为相位差膜层。 这样， 触控膜层既承担了触控功能， 同时还兼备偏光功能， 与相位差膜层结合， 就可 以起到抗反射功能， 从而圓偏光片膜层中就不用单独再设置偏光功能膜层了， 可以使 OLED显示器件更加轻薄。 致发光像素阵列可以包括多个由阳极、 阴极以及位于阳极和阴极之间的发光层 所组成的有机电致发光结构。 具体地， 有机电致发光像素阵列的具体结构为现 有技术， 在此不做赞述。
具体地， 在本发明实施例提供的上述有机电致发光显示器件中， 光学薄膜 层叠体可以通过釆用卷对卷方式来制备， 下面以制备图 3d所示的光学薄膜层 叠体为例， 对上述有机电致发光显示器件的制备方法进行说明。
具体地， 釆用卷对卷方式制备图 3d所示的光学薄膜层叠体， 具体过程的 示意图如图 4所示。
首先，在相位差膜层 0011、偏光功能膜层 0012和支撑膜层 0013分别经过 浸泡和拉伸工艺之后， 釆用卷对卷方式将三者进行贴合；
之后， 在相位差膜层 0011的一侧沉积阻水氧膜层 004; 然后， 在离型层 006将要与阻水氧膜层 004贴合的一侧倒粘结胶； 釆用卷对卷方式在沉积阻水氧膜层 004的一侧贴合离型层 006, 同时在阻 水氧膜层 004和离型层 006之间形成粘结层 003;
釆用卷对卷方式在支撑膜层 0013的一侧贴合触控膜层 005;
釆用卷对卷方式在触控膜层 005的一侧贴合保护膜层 002, 形成光学薄膜 层叠体 01。
需要说明的是， 图 3d中没有离型层， 这是因为制备离型层的目的是为了 对贴覆于有机电致发光显示器件之前的光学薄膜层叠体中的粘结层进行保护， 当该光学薄膜层叠体贴覆于有机电致发光显示器件时， 需要将离型层剥离， 以 使粘结层直接贴覆于有机电致发光显示器件的出光侧。
基于同一发明构思， 本发明实施例还提供了一种显示装置， 包括本发明实 施例提供的上述有机电致发光显示器件， 由于该显示装置解决问题的原理与前 述一种有机电致发光显示器件相似， 因此该显示装置的实施可以参见前述有机 电致发光显示器件的实施， 重复之处不再赘述。
本发明实施例提供的一种有机电致发光显示器件及显示装置， 包括衬底基 板， 设置在衬底基板上的有机电致发光像素阵列， 包覆在有机电致发光像素阵 列外侧的封装薄膜，在有机电致发光显示器件的出光侧还设置有光学薄膜层叠 体； 由于该光学薄膜层叠体包括有圓偏光片膜层、 阻水氧膜层和触控膜层， 因 此可以兼具抗反射功能、 良好的阻水氧性能和触控功能， 因此与现有的 OLED 显示器件相比，本发明实施例提供的上述 OLED显示器件只需要一次贴膜工艺 就可以解决现有 OLED显示器件既要贴阻水氧膜层又要贴圓偏光片膜层，还用 贴触控膜层的问题， 从而降低 OLED显示器件的制备工艺难度； 并且使 OLED 显示器件具有更轻薄、 成本更低、 显示效果更好等优点； 对于柔性 OLED显示 器件， 还可避免因器件厚度较厚所导致的卷曲困难的问题。 明的精神和范围。 这样， 倘若本发明的这些修改和变型属于本发明权利要求及 其等同技术的范围之内， 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种有机电致发光显示器件， 包括：
衬底基板；
设置在所述衬底基板上的有机电致发光像素阵列； 和
包覆在所述有机电致发光像素阵列外侧的封装薄膜，
其特征在于：
所述有机电致发光显示器件还包括位于其出光侧的光学薄膜层叠体； 并且 所述光学薄膜层叠体为预先形成的、 包括多个功能膜层的整体部件。
2、 如权利要求 1 所述的有机电致发光显示器件， 其特征在于， 所述光学 薄膜层叠体包括：
圓偏光片膜层；
位于所述圓偏光片膜层的入光侧的保护膜层； 和
位于所述圓偏光片膜层的出光侧的粘结层。
3、 如权利要求 2所述的有机电致发光显示器件， 其特征在于， 所述光学 薄膜层叠体还包括：
第一阻水氧膜层， 所述第一阻水氧膜层位于所述圓偏光片膜层的出光侧与 所述粘结层之间的； 和 /或
第二阻水氧膜层， 所述第二阻水氧膜层位于所述圓偏光片膜层的入光侧与 所述保护膜层之间。
4、 如权利要求 3所述的有机电致发光显示器件， 其特征在于， 所述光学 薄膜层叠体还包括：
触控膜层， 所述触控膜层位于所述圓偏光片膜层的出光侧与所述粘结层之 间或位于所述圓偏光片膜层的入光侧与所述保护膜层之间。
5、 如权利要求 4所述的有机电致发光显示器件， 其特征在于， 所述粘结 层贴覆于所述有机电致发光显示器件的出光侧。
6、 如权利要求 5所述的有机电致发光显示器件， 其特征在于，
所述圓偏光片膜层包括依次层叠设置的相位差膜层、偏光功能膜层和支撑 膜层； 并且
所述相位差膜层为所述圓偏光片膜层的出光侧， 所述支撑膜层为所述圓偏 光片膜层的入光侧， 所述偏光功能膜层位于所述相位差膜层和所述圆偏光片膜 层之间。
7、 如权利要求 6所述的有机电致发光显示器件， 其特征在于， 所述偏光 功能膜层的材料为聚乙烯醇或者碳纳米管。
8、 如权利要求 5所述的有机电致发光显示器件， 其特征在于，
所述圓偏光片膜层包括相位差膜层和偏光功能膜层； 并且
所述相位差膜层为所述圓偏光片膜层的出光侧， 所述偏光功能膜层为所述 圓偏光片膜层的入光侧。
9、 如权利要求 8所述的有机电致发光显示器件， 其特征在于， 所述偏光 功能膜层的材料为碳纳米管。
10、 如权利要求 5所述的有机电致发光显示器件， 其特征在于， 所述触控 膜层的材料为碳纳米管。
11、 如权利要求 10所述的有机电致发光显示器件， 其特征在于， 所述触控膜层位于所述圓偏光片膜层的入光侧与所述保护膜层之间； 并且 所述圓偏光片膜层为相位差膜层。
12、 如权利要求 1-11任一项所述的有机电致发光显示器件， 其特征在于， 所述封装薄膜位于所述有机电致发光显示器件的出光侧， 所述衬底基板位 于所述有机电致发光显示器件的入光侧； 并且
所述光学薄膜层叠体位于所述封装薄膜的外侧面上。
13、 如权利要求 1-11任一项所述的有机电致发光显示器件， 其特征在于， 所述封装薄膜位于所述有机电致发光显示器件的入光侧， 所述衬底基板位 于所述有机电致发光显示器件的出光侧； 并且
所述光学薄膜层叠体位于所述衬底基板的外侧面上。
14、 一种有机电致发光显示器件的制造方法， 包括以下步骤：
预先形成一个包括多个功能膜层的光学薄膜层叠体； 和
通过一次贴膜工艺将预先形成的所述光学薄膜层叠体贴附在所述有机电 致发光显示器件的有机电致发光像素阵列的出光侧。
15、如权利要求 14所述的方法，其特征在于，所述光学薄膜层叠体包括： 圓偏光片膜层， 所述圓偏光片膜层包括依次层叠设置的相位差膜层、 偏光 功能膜层和支撑膜层；
位于所述圓偏光片膜层的入光侧的保护膜层； 和
位于所述圓偏光片膜层的出光侧的粘结层、 阻水氧膜层和触控膜层。
16、 如权利要求 15所述的方法， 其特征在于， 所述 "预先形成一个包括 多个功能膜层的光学薄膜层叠体" 的步骤包括：
将相位差膜层、 偏光功能膜层和支撑膜层贴合在一起， 其中偏光功能膜层 位于相位差膜层和支撑膜层之间；
在相位差膜层的外侧上沉积阻水氧膜层， 并在阻水氧膜层上倾倒粘结胶以 形成粘结层； 和
在支撑膜层的外侧上贴合触控膜层， 并在触控膜层的外侧上贴合保护膜层。
17、 如权利要求 16所述的方法， 其特征在于， 在将相位差膜层、 偏光功 能膜层和支撑膜层贴合在一起之前， 还包括：
对相位差膜层、 偏光功能膜层和支撑膜层分别进行浸泡和拉伸。
18、 如权利要求 17所述的方法， 其特征在于，
在形成粘结层之后， 在所述粘结层上贴合离型层； 并且
在贴附光学薄膜层叠体之前， 去除该离型层， 以便露出粘结层。
19、 如权利要求 15所述的方法， 其特征在于， 所述偏光功能膜层的材料 为聚乙烯醇或者碳纳米管。
20、 一种显示装置， 其特征在于， 包括如权利要求 1-13 任一项所述的有 机电致发光显示器件。
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