WO2019140754A1 - 白光oled器件的制作方法 - Google Patents

白光oled器件的制作方法 Download PDF

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WO2019140754A1
WO2019140754A1 PCT/CN2018/078186 CN2018078186W WO2019140754A1 WO 2019140754 A1 WO2019140754 A1 WO 2019140754A1 CN 2018078186 W CN2018078186 W CN 2018078186W WO 2019140754 A1 WO2019140754 A1 WO 2019140754A1
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oled device
substrate
layer
electrode layer
fabricating
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PCT/CN2018/078186
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French (fr)
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匡友元
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深圳市华星光电技术有限公司
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Priority to US15/768,803 priority Critical patent/US10424621B2/en
Publication of WO2019140754A1 publication Critical patent/WO2019140754A1/zh

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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/10OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
    • H10K50/125OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
    • H10K50/13OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light comprising stacked EL layers within one EL unit
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00Manufacture or treatment specially adapted for the organic devices covered by this subclass

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  • the present invention relates to the field of display technologies, and in particular, to a method for fabricating a white light OLED device.
  • the active matrix flat panel display has many advantages such as thin body, power saving, no radiation, and has been widely used.
  • organic light-emitting diode (OLED) display technology is a promising flat panel display technology, which has excellent display performance, especially self-illumination, simple structure, ultra-thin and light, fast response.
  • Wide viewing angle, low power consumption and flexible display it is known as “dream display”, and its production equipment investment is much smaller than Thin Film Transistor-Liquid Crystal Display (TFT-LCD).
  • TFT-LCD Thin Film Transistor-Liquid Crystal Display
  • OLED has been on the eve of mass production. With the further development of research and the emergence of new technologies, OLED display devices will have a breakthrough development.
  • the WOLED and CF layer superposition structure does not require a precise mask process, the high resolution of the OLED display can be realized. Therefore, although the small and medium size OLED display panel generally adopts the RGB pixel side-by-side structure, the large-size OLED display panel The superposition structure of the WOLED and CF layers is generally adopted.
  • white OLED devices have become one of the important ways to make large-size display panels and lighting devices.
  • white light OLED devices mostly use three layers of light emitting layers (red light R + green light G + blue light B, or blue light B + yellow light Y + blue light B, or blue light B + yellow light Y + yellow light Y), or double layer light emitting layer (blue light B + yellow)
  • the light Y is used to generate white light.
  • the structure of a conventional white light OLED device using a BYB three-layer light-emitting layer includes an anode layer 10 and a first hole injection layer (Hole formed in order from bottom to top).
  • HIL Inject Layer
  • HTL first hole transport layer
  • EML blue light emitting layer
  • ETL electron transport layer
  • EIL An electron injecting layer
  • CGL charge generating layer
  • second hole injecting layer 21, a second hole transporting layer 22, a yellow light emitting layer 23, a second electron transport layer 24, a second electron injection layer 25, a second charge generation layer 30, a third hole injection layer 31, a third hole transport layer 32, a second blue light-emitting layer 33, a third electron transport layer 34, a third electron injection layer 35 and a cathode layer 40
  • the evaporation process is complicated, the process is cumbersome, and Large-scale production.
  • the object of the present invention is to provide a method for fabricating a white light OLED device, which can greatly reduce the complicated preparation process caused by layer-by-layer superposition of a multilayer film in the preparation process of the existing white OLED device, and does not need to consider multi-color devices. Complex process problems caused by convergence and photochromic resonance greatly simplify the process.
  • the present invention provides a method of fabricating a white OLED device, comprising the steps of:
  • Step S1 forming a first substrate and a second substrate, respectively forming first and second OLED devices corresponding to each other on the first substrate and the second substrate, wherein the light emitted by the first OLED device
  • the light emitted by the second OLED device is white light after mixing;
  • Step S2 forming a light extraction layer on the second OLED device
  • Step S3 stacking the second OLED device from the side on which the light extraction layer is disposed on the first OLED device to obtain a white OLED device.
  • the first OLED device is one of a blue OLED device and a yellow OLED device
  • the second OLED device is another one of a blue OLED device and a yellow OLED device.
  • the first substrate and the second substrate fabricated in the step S1 are both flexible substrates.
  • the first substrate and the second substrate are formed into the same flexible slab, and the manufacturing process is specifically: providing a substrate on which a flexible slab is fabricated, in the flexible Dividing the first substrate and the second substrate on the large board;
  • the second OLED device of the second substrate is stacked on the first OLED device of the first substrate by folding the flexible large plate in the step S3.
  • the substrate is further removed from the flexible large plate.
  • the material of the flexible substrate is polyethylene terephthalate.
  • the step S1 further includes forming a registration mark on the first substrate and the second substrate;
  • the second OLED device is correspondingly stacked on the first OLED device by a registration mark.
  • the first OLED device includes a first lower electrode layer, a first upper electrode layer, a first organic functional layer, and a first luminescent layer;
  • the second OLED device includes a second lower electrode layer, a second upper electrode layer, a second organic functional layer, and a second luminescent layer;
  • the first luminescent layer and the second luminescent layer each have a pixel pattern, and the first luminescent layer and the second luminescent layer are both patterned structure layers, and the first organic functional layer and the second organic functional layer are both Surface structure layer.
  • the first lower electrode layer and the first upper electrode layer are sequentially disposed on the first substrate from bottom to top;
  • the second lower electrode layer and the second upper electrode layer are sequentially disposed on the second substrate from bottom to top;
  • One of the first lower electrode layer and the second lower electrode layer is a reflective material, and the other is a transparent material; the first upper electrode layer and the second upper electrode layer are both transparent materials.
  • the step S2 further includes forming a sealant on the edge of the first substrate and/or the second substrate;
  • the frame sealant bonds the first substrate and the second substrate together to implement packaging of the white OLED device.
  • the invention also provides a method for fabricating a white light OLED device, comprising the following steps:
  • Step S1 forming a first substrate and a second substrate, respectively forming first and second OLED devices corresponding to each other on the first substrate and the second substrate, wherein the light emitted by the first OLED device
  • the light emitted by the second OLED device is white light after mixing;
  • Step S2 forming a light extraction layer on the second OLED device
  • Step S3 stacking the second OLED device from the side on which the light extraction layer is disposed on the first OLED device to obtain a white OLED device;
  • the first OLED device is one of a blue OLED device and a yellow OLED device
  • the second OLED device is another one of a blue OLED device and a yellow OLED device
  • the first substrate and the second substrate fabricated in the step S1 are both flexible substrates
  • the first substrate and the second substrate are formed into the same flexible large board, and the manufacturing process is specifically: providing a base substrate, and manufacturing a flexible large board on the base substrate. Delimiting the first substrate and the second substrate on the flexible large board;
  • the substrate is further removed from the flexible large board.
  • the present invention provides a method for fabricating a white light OLED device, which firstly fabricates a first OLED device and a second OLED device corresponding to each other on a first substrate and a second substrate, wherein the first The light emitted by the OLED device and the light emitted by the second OLED device are mixed to be white light, and then the second OLED device is correspondingly stacked on the first OLED device to obtain a white OLED device.
  • the complicated preparation process caused by layer-by-layer superposition of the multilayer film in the preparation process of the existing white OLED device can be greatly reduced, and the complicated process problems caused by the mutual connection of the multi-color devices and the light color resonance are not required, and the process is greatly simplified.
  • 1 is a schematic structural view of a conventional white light OLED device
  • FIG. 2 is a flow chart of a method of fabricating a white OLED device of the present invention
  • Figure 6 is a plan view showing the structure shown in Figure 5;
  • 7-9 are schematic diagrams showing the step S2 of the method for fabricating a white OLED device of the present invention.
  • FIG. 10 is a schematic diagram of step S3 of the method for fabricating a white OLED device of the present invention.
  • the present invention provides a method for fabricating a white OLED device, comprising the following steps:
  • Step S1 as shown in FIG. 3-5, the first substrate 110 and the second substrate 210 are formed, and the first OLED device 120 and the second OLED device corresponding to each other are respectively formed on the first substrate 110 and the second substrate 210. 220, wherein the light emitted by the first OLED device 120 and the light emitted by the second OLED device 220 are mixed to be white light.
  • the first OLED device 120 and the second OLED device 220 are a blue OLED device and a yellow OLED device, respectively.
  • the first substrate 110 and the second substrate 210 fabricated in the step S1 are both flexible substrates, and the material of the flexible substrate is a high light transmissive material, such as polyethylene terephthalate (PET). ).
  • PET polyethylene terephthalate
  • the first substrate 110 and the second substrate 210 are formed into the same flexible large board 100, and the manufacturing process is specifically: providing the base substrate 500, and manufacturing on the base substrate 500
  • the flexible slab 100 defines the first substrate 110 and the second substrate 210 on the flexible slab 100.
  • the step S1 further includes forming alignment marks 130 on the first substrate 110 and the second substrate 210 .
  • the first OLED device 120 includes a first lower electrode layer, a first upper electrode layer, a first organic functional layer, and a first light emitting layer (not shown) disposed in a stacked manner; wherein the first OLED device The first lower electrode layer and the first upper electrode layer are sequentially disposed on the first substrate 110 from bottom to top, and the first organic functional layer and the first light emitting layer are disposed on the first lower electrode. Between the layer and the first upper electrode layer;
  • the second OLED device 220 includes a second lower electrode layer, a second upper electrode layer, a second organic functional layer, and a second luminescent layer (not shown); wherein the second lower electrode layer
  • the second upper electrode layer is sequentially disposed on the second substrate 210 from bottom to top, and the second organic functional layer and the second light emitting layer are disposed between the second lower electrode layer and the second upper electrode layer.
  • the first luminescent layer and the second luminescent layer each have a pixel pattern, and the first luminescent layer and the second luminescent layer are both patterned structure layers, the first organic functional layer and the second organic functional layer Both are full-surface structural layers.
  • one of the first lower electrode layer and the second lower electrode layer is a reflective material, and the other is a transparent material; the first upper electrode layer and the second upper electrode layer are both transparent materials.
  • a magnesium-silver alloy Mg/Ag
  • Mg/Ag magnesium-silver alloy
  • Step S2 as shown in FIG. 7-9, a light extraction layer 300 is formed on the second OLED device 220, and the substrate substrate 500 is removed from the flexible large board 100, and the first substrate 110 and the first substrate A sealant 400 is formed on the edge of the second substrate 210.
  • the light extraction layer 300 also functions as a buffer layer.
  • Step S3 as shown in FIG. 10, folding the flexible slab 100 and further stacking the second OLED device 220 from the side on which the light extraction layer 300 is disposed according to the alignment mark 130.
  • the first OLED device 120 On the first OLED device 120, a white OLED device is obtained.
  • the sealant 400 bonds the first substrate 110 and the second substrate 210 together to implement packaging of the white OLED device.
  • a white OLED device can be obtained by stacking the first OLED device 120 and the second OLED device 220 respectively formed on the first substrate 110 and the second substrate 210.
  • the method can greatly reduce the complicated preparation process caused by superimposing the multilayer film layer by layer in the preparation process of the existing white OLED device, and does not need to consider the complicated process problems caused by the mutual connection of the multicolor devices and the light color resonance, thereby greatly simplifying the process.
  • the method for fabricating a white OLED device of the present invention firstly fabricates a first OLED device and a second OLED device corresponding to each other on the first substrate and the second substrate, wherein the first OLED is The light emitted by the device and the light emitted by the second OLED device are mixed to be white light, and then the second OLED device is correspondingly stacked on the first OLED device, thereby obtaining a white light OLED device, and the manufacturing method can be
  • the complicated preparation process caused by superimposing the multilayer film layer by layer in the preparation process of the existing white OLED device is greatly reduced, and the complicated process problems caused by the mutual connection of the multicolor devices and the light color resonance are not required, and the process is greatly simplified.

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

Abstract

一种白光OLED器件的制作方法,首先在第一基板(110)和第二基板(210)上分别制作相互对应的第一OLED器件(120)和第二OLED器件(220),其中,所述第一OLED器件(120)发出的光和所述第二OLED器件(220)发出的光混合后为白光,然后将所述第二OLED器件(220)对应堆叠在所述第一OLED器件(120)上,便可得到白光OLED器件,此种制作方法可大大减少现有白光OLED器件制备过程中逐层叠加多层膜材所引起的复杂制备工艺,不需要考虑多色器件相互衔接及光色共振引起的复杂工艺问题,大大简化了制程。

Description

白光OLED器件的制作方法 技术领域
本发明涉及显示技术领域,尤其涉及一种白光OLED器件的制作方法。
背景技术
主动矩阵平面显示器具有机身薄、省电、无辐射等众多优点,得到了广泛的应用。其中,有机发光二极管(organic light-emitting diode,OLED)显示技术是一种极具发展前景的平板显示技术,它具有十分优异的显示性能,特别是自发光、结构简单、超轻薄、响应速度快、宽视角、低功耗及可实现柔性显示等特性,被誉为“梦幻显示器”,再加上其生产设备投资远小于薄膜晶体管型液晶显示屏(Thin Film Transistor-Liquid Crystal Display,TFT-LCD),得到了各大显示器厂家的青睐,已成为显示技术领域中第三代显示器件的主力军。目前OLED已处于大规模量产的前夜,随着研究的进一步深入,新技术的不断涌现,OLED显示器件必将有一个突破性的发展。
为实现OLED显示器的全彩化,一种方式是通过红绿蓝(RGB)子像素分别发光的并列式(side-by-side)结构来实现,另一种方式是通过白色有机发光二极管(White Organic Light Emitting Diode,WOLED)和彩色滤光(Color Filter,CF)层叠加的串联型(tandem WOLED+CF)结构来实现;在WOLED中,两个或多个发光层通过电荷产生层(charge generation layer,CGL)相连,发出白光,经过CF层过滤后得到RGB单色光,因发光层叠加,故称作串联型结构。由于WOLED与CF层叠加结构不需要精准的掩膜工艺,就可以实现OLED显示器的高分辨率,因此,目前虽然中小尺寸OLED显示面板普遍采用RGB像素并列式的结构,而大尺寸OLED显示面板却普遍采用WOLED与CF层的叠加结构。
可见白光OLED器件成为大尺寸显示面板及照明器件制作的重要途径之一。而目前白光OLED器件多采用三层发光层(红光R+绿光G+蓝光B、或蓝光B+黄光Y+蓝光B、或蓝光B+黄光Y+黄光Y),或双层发光层(蓝光B+黄光Y)来产生白光,如图1所示,现有一种采用BYB三层发光层的白光OLED器件的结构包括由下至上依次形成的阳极(Anode)层10、第一空穴注入层(Hole Inject Layer,HIL)11、第一空穴传输层(Hole transport layer,HTL)12、第一蓝光发光层(Emitting layer,EML)13、第一电子传 输层(Electron transport layer,ETL)14、第一电子注入层(Electron Inject layer,EIL)15、第一电荷产生层(Charge Generation Layer,CGL)20、第二空穴注入层21、第二空穴传输层22、黄光发光层23、第二电子传输层24、第二电子注入层25、第二电荷产生层30、第三空穴注入层31、第三空穴传输层32、第二蓝光发光层33、第三电子传输层34、第三电子注入层35及阴极(Cathode)层40;蒸镀工艺复杂,制程繁琐,不利于大规模生产。
发明内容
本发明的目的在于提供一种白光OLED器件的制作方法,此种方法可大大减少现有白光OLED器件制备过程中逐层叠加多层膜材所引起的复杂制备工艺,不需要考虑多色器件相互衔接及光色共振引起的复杂工艺问题,大大简化了制程。
为实现上述目的,本发明提供一种白光OLED器件的制作方法,包括以下步骤:
步骤S1、制作第一基板和第二基板,在所述第一基板、第二基板上分别制作相互对应的第一OLED器件和第二OLED器件,其中,所述第一OLED器件发出的光和所述第二OLED器件发出的光混合后为白光;
步骤S2、在所述第二OLED器件上制作光提取层;
步骤S3、将所述第二OLED器件从其设有光提取层的一侧对应堆叠在所述第一OLED器件上,得到白光OLED器件。
所述第一OLED器件为蓝光OLED器件和黄光OLED器件中的一种,所述第二OLED器件为蓝光OLED器件和黄光OLED器件中的另一种。
所述步骤S1中所制作的第一基板和第二基板均为柔性基板。
所述步骤S1中,所制作的第一基板和第二基板属于同一块柔性大板,其制作过程具体为:提供衬底基板,在所述衬底基板上制作柔性大板,在所述柔性大板上划分出所述第一基板和第二基板;
所述步骤S3中通过将所述柔性大板进行翻折将所述第二基板的第二OLED器件堆叠在所述第一基板的第一OLED器件上。
所述步骤S2中在制作光提取层后,还包括将所述衬底基板从柔性大板上去除。
所述柔性基板的材料为聚对苯二甲酸乙二醇酯。
所述步骤S1中,还包括在所述第一基板和第二基板上制作对位标记;
所述步骤S3中,通过对位标记将所述第二OLED器件对应堆叠在所述第一OLED器件。
所述第一OLED器件包括层叠设置的第一下电极层、第一上电极层、第一有机功能层及第一发光层;
所述第二OLED器件包括层叠设置的第二下电极层、第二上电极层、第二有机功能层及第二发光层;
所述第一发光层、第二发光层均具有像素图案,所述第一发光层、第二发光层均为图案化结构层,所述第一有机功能层和第二有机功能层均为整面结构层。
所述第一OLED器件中,所述第一下电极层、第一上电极层由下至上依次设于所述第一基板上;
所述第二OLED器件中,所述第二下电极层、第二上电极层由下至上依次设于所述第二基板上;
所述第一下电极层和所述第二下电极层中的一个为反射材料,另一个为透明材料;所述第一上电极层和所述第二上电极层均为透明材料。
所述步骤S2还包括在所述第一基板和/或第二基板的边缘上制作封框胶;
所述步骤S3中,所述封框胶将第一基板和第二基板粘结在一起,实现所述白光OLED器件的封装。
本发明还提供一种白光OLED器件的制作方法,包括以下步骤:
步骤S1、制作第一基板和第二基板,在所述第一基板、第二基板上分别制作相互对应的第一OLED器件和第二OLED器件,其中,所述第一OLED器件发出的光和所述第二OLED器件发出的光混合后为白光;
步骤S2、在所述第二OLED器件上制作光提取层;
步骤S3、将所述第二OLED器件从其设有光提取层的一侧对应堆叠在所述第一OLED器件上,得到白光OLED器件;
其中,所述第一OLED器件为蓝光OLED器件和黄光OLED器件中的一种,所述第二OLED器件为蓝光OLED器件和黄光OLED器件中的另一种;
其中,所述步骤S1中所制作的第一基板和第二基板均为柔性基板;
其中,所述步骤S1中,所制作的第一基板和第二基板属于同一块柔性大板,其制作过程具体为:提供衬底基板,在所述衬底基板上制作柔性大板,在所述柔性大板上划分出所述第一基板和第二基板;
所述步骤S3中通过将所述柔性大板进行翻折将所述第二基板的第二OLED器件堆叠在所述第一基板的第一OLED器件上;
其中,所述步骤S2中在制作光提取层后,还包括将所述衬底基板从柔 性大板上去除。
本发明的有益效果:本发明提供的一种白光OLED器件的制作方法,首先在第一基板和第二基板上分别制作相互对应的第一OLED器件和第二OLED器件,其中,所述第一OLED器件发出的光和所述第二OLED器件发出的光混合后为白光,然后将所述第二OLED器件对应堆叠在所述第一OLED器件上,便可得到白光OLED器件,此种制作方法可大大减少现有白光OLED器件制备过程中逐层叠加多层膜材所引起的复杂制备工艺,不需要考虑多色器件相互衔接及光色共振引起的复杂工艺问题,大大简化了制程。
为了能更进一步了解本发明的特征以及技术内容,请参阅以下有关本发明的详细说明与附图,然而附图仅提供参考与说明用,并非用来对本发明加以限制。
附图说明
下面结合附图,通过对本发明的具体实施方式详细描述,将使本发明的技术方案及其它有益效果显而易见。
附图中,
图1为现有一种采用白光OLED器件的结构示意图;
图2为本发明的白光OLED器件的制作方法的流程图;
图3-5为本发明的白光OLED器件的制作方法的步骤S1的示意图;
图6为图5中所示结构的平面示意图;
图7-9为本发明的白光OLED器件的制作方法的步骤S2的示意图;
图10为本发明的白光OLED器件的制作方法的步骤S3的示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果,以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图2,本发明提供一种白光OLED器件的制作方法,包括以下步骤:
步骤S1、如图3-5所示,制作第一基板110和第二基板210,在所述第一基板110、第二基板210上分别制作相互对应的第一OLED器件120、第二OLED器件220,其中,所述第一OLED器件120发出的光和所述第二OLED器件220发出的光混合后为白光。
具体地,所述第一OLED器件120、第二OLED器件220分别为蓝光 OLED器件和黄光OLED器件。
具体地,所述步骤S1中所制作的第一基板110和第二基板210均为柔性基板,所述柔性基板的材料为高透光性材料,例如聚对苯二甲酸乙二醇酯(PET)。
进一步地,所述步骤S1中,所制作的第一基板110和第二基板210属于同一块柔性大板100,其制作过程具体为:提供衬底基板500,在所述衬底基板500上制作柔性大板100,在所述柔性大板100上划分出所述第一基板110和第二基板210。
具体地,如图6所示,所述步骤S1中,还包括在所述第一基板110和第二基板210上制作对位标记130。
具体地,所述第一OLED器件120包括层叠设置的第一下电极层、第一上电极层、第一有机功能层及第一发光层(未图示);其中,所述第一OLED器件120中,所述第一下电极层、第一上电极层由下至上依次设于所述第一基板110上,所述第一有机功能层及第一发光层设于所述第一下电极层和第一上电极层之间;
所述第二OLED器件220包括层叠设置的第二下电极层、第二上电极层、第二有机功能层及第二发光层(未图示);其中,所述第二下电极层、第二上电极层由下至上依次设于所述第二基板210上,所述第二有机功能层及第二发光层设于所述第二下电极层和第二上电极层之间。
具体地,所述第一发光层、第二发光层均具有像素图案,所述第一发光层、第二发光层均为图案化结构层,所述第一有机功能层和第二有机功能层均为整面结构层。
具体地,所述第一下电极层和所述第二下电极层中的一个为反射材料,另一个为透明材料;所述第一上电极层和所述第二上电极层均为透明材料,如镁银合金(Mg/Ag);即所述第一OLED器件120和第二OLED器件220中的一个朝远离柔性大板100的方向出光,另一个即朝远离柔性大板100的方向出光又朝向柔性大板100出光。
步骤S2、如图7-9所示,在所述第二OLED器件220上制作光提取层300,将所述衬底基板500从柔性大板100上去除,在所述第一基板110和第二基板210的边缘上制作封框胶400。
具体地,所述光提取层300还起到缓冲层的作用。
步骤S3、如图10所示,将所述柔性大板100进行翻折并进一步根据对位标记130将所述第二OLED器件220从其设有光提取层300的一侧对应堆叠在所述第一OLED器件120上,得到白光OLED器件。
具体地,所述步骤S3中,所述封框胶400将第一基板110和第二基板210粘结在一起,实现所述白光OLED器件的封装。
本发明的白光OLED器件的制作方法,通过将分别制作在第一基板110和第二基板210上的第一OLED器件120、第二OLED器件220对应堆叠,便可得到白光OLED器件,此种制作方法可大大减少现有白光OLED器件制备过程中逐层叠加多层膜材所引起的复杂制备工艺,不需要考虑多色器件相互衔接及光色共振引起的复杂工艺问题,大大简化了制程。
综上所述,本发明提供的一种白光OLED器件的制作方法,首先在第一基板和第二基板上分别制作相互对应的第一OLED器件和第二OLED器件,其中,所述第一OLED器件发出的光和所述第二OLED器件发出的光混合后为白光,然后将所述第二OLED器件对应堆叠在所述第一OLED器件上,便可得到白光OLED器件,此种制作方法可大大减少现有白光OLED器件制备过程中逐层叠加多层膜材所引起的复杂制备工艺,不需要考虑多色器件相互衔接及光色共振引起的复杂工艺问题,大大简化了制程。
以上所述,对于本领域的普通技术人员来说,可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形,而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (16)

  1. 一种白光OLED器件的制作方法,包括以下步骤:
    步骤S1、制作第一基板和第二基板,在所述第一基板、第二基板上分别制作相互对应的第一OLED器件和第二OLED器件,其中,所述第一OLED器件发出的光和所述第二OLED器件发出的光混合后为白光;
    步骤S2、在所述第二OLED器件上制作光提取层;
    步骤S3、将所述第二OLED器件从其设有光提取层的一侧对应堆叠在所述第一OLED器件上,得到白光OLED器件。
  2. 如权利要求1所述的白光OLED器件的制作方法,其中,所述第一OLED器件为蓝光OLED器件和黄光OLED器件中的一种,所述第二OLED器件为蓝光OLED器件和黄光OLED器件中的另一种。
  3. 如权利要求1所述的白光OLED器件的制作方法,其中,所述步骤S1中所制作的第一基板和第二基板均为柔性基板。
  4. 如权利要求3所述的白光OLED器件的制作方法,其中,所述步骤S1中,所制作的第一基板和第二基板属于同一块柔性大板,其制作过程具体为:提供衬底基板,在所述衬底基板上制作柔性大板,在所述柔性大板上划分出所述第一基板和第二基板;
    所述步骤S3中通过将所述柔性大板进行翻折将所述第二基板的第二OLED器件堆叠在所述第一基板的第一OLED器件上。
  5. 如权利要求4所述的白光OLED器件的制作方法,其中,所述步骤S2中在制作光提取层后,还包括将所述衬底基板从柔性大板上去除。
  6. 如权利要求3所述的白光OLED器件的制作方法,其中,所述柔性基板的材料为聚对苯二甲酸乙二醇酯。
  7. 如权利要求1所述的白光OLED器件的制作方法,其中,所述步骤S1中,还包括在所述第一基板和第二基板上制作对位标记;
    所述步骤S3中,通过对位标记将所述第二OLED器件对应堆叠在所述第一OLED器件。
  8. 如权利要求1所述的白光OLED器件的制作方法,其中,所述第一OLED器件包括层叠设置的第一下电极层、第一上电极层、第一有机功能层及第一发光层;
    所述第二OLED器件包括层叠设置的第二下电极层、第二上电极层、第二有机功能层及第二发光层;
    所述第一发光层、第二发光层均具有像素图案,所述第一发光层、第二发光层均为图案化结构层,所述第一有机功能层和第二有机功能层均为整面结构层。
  9. 如权利要求8所述的白光OLED器件的制作方法,其中,所述第一OLED器件中,所述第一下电极层、第一上电极层由下至上依次设于所述第一基板上;
    所述第二OLED器件中,所述第二下电极层、第二上电极层由下至上依次设于所述第二基板上;
    所述第一下电极层和所述第二下电极层中的一个为反射材料,另一个为透明材料;所述第一上电极层和所述第二上电极层均为透明材料。
  10. 如权利要求1所述的白光OLED器件的制作方法,其中,所述步骤S2还包括在所述第一基板和/或第二基板的边缘上制作封框胶;
    所述步骤S3中,所述封框胶将第一基板和第二基板粘结在一起,实现所述白光OLED器件的封装。
  11. 一种白光OLED器件的制作方法,包括以下步骤:
    步骤S1、制作第一基板和第二基板,在所述第一基板、第二基板上分别制作相互对应的第一OLED器件和第二OLED器件,其中,所述第一OLED器件发出的光和所述第二OLED器件发出的光混合后为白光;
    步骤S2、在所述第二OLED器件上制作光提取层;
    步骤S3、将所述第二OLED器件从其设有光提取层的一侧对应堆叠在所述第一OLED器件上,得到白光OLED器件;
    其中,所述第一OLED器件为蓝光OLED器件和黄光OLED器件中的一种,所述第二OLED器件为蓝光OLED器件和黄光OLED器件中的另一种;
    其中,所述步骤S1中所制作的第一基板和第二基板均为柔性基板;
    其中,所述步骤S1中,所制作的第一基板和第二基板属于同一块柔性大板,其制作过程具体为:提供衬底基板,在所述衬底基板上制作柔性大板,在所述柔性大板上划分出所述第一基板和第二基板;
    所述步骤S3中通过将所述柔性大板进行翻折将所述第二基板的第二OLED器件堆叠在所述第一基板的第一OLED器件上;
    其中,所述步骤S2中在制作光提取层后,还包括将所述衬底基板从柔性大板上去除。
  12. 如权利要求11所述的白光OLED器件的制作方法,其中,所述柔性基板的材料为聚对苯二甲酸乙二醇酯。
  13. 如权利要求11所述的白光OLED器件的制作方法,其中,所述步骤S1中,还包括在所述第一基板和第二基板上制作对位标记;
    所述步骤S3中,通过对位标记将所述第二OLED器件对应堆叠在所述第一OLED器件。
  14. 如权利要求11所述的白光OLED器件的制作方法,其中,所述第一OLED器件包括层叠设置的第一下电极层、第一上电极层、第一有机功能层及第一发光层;
    所述第二OLED器件包括层叠设置的第二下电极层、第二上电极层、第二有机功能层及第二发光层;
    所述第一发光层、第二发光层均具有像素图案,所述第一发光层、第二发光层均为图案化结构层,所述第一有机功能层和第二有机功能层均为整面结构层。
  15. 如权利要求14所述的白光OLED器件的制作方法,其中,所述第一OLED器件中,所述第一下电极层、第一上电极层由下至上依次设于所述第一基板上;
    所述第二OLED器件中,所述第二下电极层、第二上电极层由下至上依次设于所述第二基板上;
    所述第一下电极层和所述第二下电极层中的一个为反射材料,另一个为透明材料;所述第一上电极层和所述第二上电极层均为透明材料。
  16. 如权利要求11所述的白光OLED器件的制作方法,其中,所述步骤S2还包括在所述第一基板和/或第二基板的边缘上制作封框胶;
    所述步骤S3中,所述封框胶将第一基板和第二基板粘结在一起,实现所述白光OLED器件的封装。
PCT/CN2018/078186 2018-01-19 2018-03-06 白光oled器件的制作方法 WO2019140754A1 (zh)

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