WO2020220443A1 - 有机发光显示面板及其制备方法 - Google Patents

有机发光显示面板及其制备方法 Download PDF

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Publication number
WO2020220443A1
WO2020220443A1 PCT/CN2019/091646 CN2019091646W WO2020220443A1 WO 2020220443 A1 WO2020220443 A1 WO 2020220443A1 CN 2019091646 W CN2019091646 W CN 2019091646W WO 2020220443 A1 WO2020220443 A1 WO 2020220443A1
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Prior art keywords
layer
organic light
substrate
light emitting
light
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French (fr)
Inventor
张良芬
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10OLED displays
    • H10K59/12Active-matrix OLED [AMOLED] displays
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10OLED displays
    • H10K59/12Active-matrix OLED [AMOLED] displays
    • H10K59/122Pixel-defining structures or layers, e.g. banks

Definitions

  • the present invention relates to the field of display technology, and in particular to an organic light emitting display panel.
  • Organic Light Emitting Display (Organic Light Emitting Display) is a display technology that uses organic materials to achieve self-emissive.
  • top emission organic light emitting display For a top emission organic light emitting display (top emission OLED), it can effectively increase the aperture ratio of the organic light emitting display, but the high resistance value of its transparent cathode will cause a voltage drop (I-R drop), which makes the display image uneven.
  • I-R drop voltage drop
  • the high resistance value of the transparent cathode of the top-emitting organic light-emitting display will cause a voltage drop, which makes the display image non-uniform.
  • the purpose of the present invention is to provide an organic light emitting display panel and a preparation method thereof, which can avoid the generation of voltage drop, thereby improving the display quality.
  • the present invention provides an organic light emitting display panel including a plurality of light emitting regions and at least one non-light emitting region located between the light emitting regions, wherein the organic light emitting display panel includes: a color filter, It includes a light-shielding layer and at least one auxiliary electrode located in the non-light-emitting area, the auxiliary electrode is located in the coverage of the light-shielding layer; a second substrate, which is arranged opposite to the color filter, includes: a thin film transistor substrate A first electrode layer formed on the thin film transistor substrate; a pixel definition layer formed on the thin film transistor substrate, wherein the pixel definition layer has at least one first recess in the non-light emitting region, so There is a difference in thickness between the first recessed portion and the thin film transistor substrate; an organic light-emitting layer covering the first electrode layer and the pixel defining layer; and a second electrode formed on the organic light-emitting layer A layer, wherein the second electrode layer traverses the
  • the conductive spacer is located within the coverage area of the light shielding layer.
  • the shape of the opening of the second recess is one of a circle, a rectangle, or a triangle.
  • the material of the auxiliary electrode is selected from one of aluminum, molybdenum, copper, indium tin oxide, silver, or metal alloys.
  • the material of the conductive spacer is selected from one of aluminum, molybdenum, copper, or metal alloys.
  • the present invention also provides an organic light emitting display panel including a plurality of light emitting regions and at least one non-light emitting region located between the light emitting regions, wherein the organic light emitting display panel includes: a first substrate, It includes at least one auxiliary electrode located in the non-light emitting region; a second substrate, which is disposed opposite to the first substrate, and includes: a thin film transistor substrate; a first electrode layer formed on the thin film transistor substrate; The pixel definition layer on the thin film transistor substrate, wherein the pixel definition layer has at least one first recessed portion in the non-light emitting region, and there is a thickness difference between the first recessed portion and the thin film transistor substrate; covering An organic light-emitting layer on the first electrode layer and the pixel defining layer; and a second electrode layer formed on the organic light-emitting layer, wherein the second electrode layer traverses the plurality of light-emitting regions and all
  • the at least one non-light-emitting area has at least one second conca
  • the first substrate further includes a light shielding layer, and the auxiliary electrode and the conductive spacer are located within the coverage of the light shielding layer.
  • the first electrode layer is an anode layer.
  • the second electrode layer is a cathode layer.
  • the shape of the opening of the second recess is one of a circle, a rectangle, or a triangle.
  • the material of the auxiliary electrode is selected from one of aluminum, molybdenum, copper, indium tin oxide, silver, or metal alloys.
  • the material of the conductive spacer is selected from one of aluminum, molybdenum, copper, or metal alloys.
  • the first substrate is a color filter.
  • the present invention also provides a method for manufacturing an organic light emitting display panel, including: providing a thin film transistor substrate; forming a first electrode layer and a pixel definition layer on the thin film transistor substrate to divide a plurality of light emitting regions And at least one non-light-emitting area located between the light-emitting areas, wherein the first electrode layer is located in the light-emitting area; at least one first recess is formed on the pixel definition layer, wherein the first recess There is a thickness difference between the thin film transistor substrate and the thin film transistor substrate; an organic light-emitting layer is formed overlying the first electrode layer and the pixel definition layer; a second electrode layer is formed on the organic light-emitting layer so that the The second electrode layer has at least one second concave portion corresponding to the first concave portion in the non-luminous area; at least one conductive spacer is provided so that the conductive spacer is disposed in the second concave portion and Electrically contacting the second electrode layer
  • the step of forming at least one first recess on the pixel definition layer includes: thinning the pixel definition layer through a halftone mask process and forming the first recess.
  • the invention can avoid the generation of pressure drop, thereby improving the display quality.
  • 1A-1G are partial cross-sectional views of the method for manufacturing the organic light emitting display panel of the present invention.
  • FIGS. 1A-1G show partial cross-sectional views of the method for manufacturing an organic light emitting display panel implementing the present invention.
  • the manufacturing method of the organic light emitting display panel of the present invention includes the following steps:
  • a thin film transistor substrate 20 is provided.
  • a first electrode layer 21 and a pixel defining layer 24 are formed on the thin film transistor substrate 20 to divide a plurality of light-emitting areas AA and at least one non-light-emitting area BB between the light-emitting areas AA, wherein the first electrode layer 21 is located Within the light-emitting area AA.
  • the light-emitting area AA may be pixel units R, G, and B.
  • At least one first recess 240 is formed on the pixel definition layer 24, wherein there is a thickness difference H between the first recess 240 and the thin film transistor substrate 20.
  • the pixel definition layer 24 may be thinned by a half-tone mask process and the first recess 240 may be formed.
  • an organic light emitting layer 23 is formed to cover the first electrode layer 21 and the pixel defining layer 24.
  • the second electrode layer 22 is formed on the organic light emitting layer 23 so that the second electrode layer 22 has at least one second recess 220 corresponding to the first recess 240 in the non-light emitting region BB.
  • At least one conductive spacer 3 is provided, so that the conductive spacer 3 is disposed in the second recess 220 and electrically contacts the second electrode layer 22.
  • a first substrate 1 is provided, wherein the first substrate 1 includes at least one auxiliary electrode 10 corresponding to the non-light emitting region BB.
  • the first substrate 1 is a color filter.
  • the first substrate 1 and the thin film transistor substrate 20 are connected, so that the conductive spacer 3 is electrically connected to the auxiliary electrode 10, and the auxiliary electrode 10 is electrically connected to the second electrode through the conductive spacer 3 Layer 22.
  • the organic light emitting display panel of the present invention includes a plurality of light emitting areas AA and at least one non-light emitting area BB located between the light emitting areas AA. Furthermore, the organic light emitting display panel includes: a first substrate 1, a second substrate 2 and at least one conductive spacer 3.
  • the first substrate 1 includes at least one auxiliary electrode 10 located in the non-light emitting region BB. Specifically, the first substrate 1 is a color filter.
  • the material of the auxiliary electrode 10 is selected from one of aluminum, molybdenum, copper, indium tin oxide, silver, or metal alloys.
  • the first substrate 1 further includes a light-shielding layer 12, and the auxiliary electrode 10 and the conductive spacer 3 are located within the coverage of the light-shielding layer 12, so that the auxiliary electrode 10 and the conductive spacer 3 are not caught by human eyes. As seen.
  • the second substrate 2 is arranged opposite to the first substrate 1, and includes: a thin film transistor substrate 20, a first electrode layer 21 formed on the thin film transistor substrate 20, a pixel definition layer 24 formed on the thin film transistor substrate 20, and a first An electrode layer 21 and an organic light emitting layer 23 on the pixel defining layer 24 and a second electrode layer 22 formed on the organic light emitting layer 23.
  • the pixel definition layer 24 has at least one first recess 240 in the non-light emitting region BB, and there is a thickness difference H between the first recess 240 and the thin film transistor substrate 20.
  • the second electrode layer 22 traverses a plurality of light-emitting areas AA and at least one non-light-emitting area BB, and has at least one second recess 220 corresponding to the first recess 240 in the non-light-emitting area BB.
  • the first electrode layer 21 is an anode layer
  • the second electrode layer 22 is a cathode layer.
  • the opening shape of the second recess 220 is one of a circle, a rectangle, or a triangle.
  • At least one conductive spacer 3 is located between the first substrate 1 and the second substrate 2.
  • the conductive spacer 3 is disposed in the second recess 220 and electrically contacts the auxiliary electrode 10 and the second electrode layer 22, so that the auxiliary electrode 10 is electrically connected to the second electrode layer 22 through the conductive spacer 3 ⁇ 22 ⁇ Electrode layer 22.
  • the material of the conductive spacer 3 is selected from one of aluminum, molybdenum, copper or metal alloy.
  • the organic light-emitting display panel and the preparation method thereof provided by the present invention mainly use conductive spacers to lap the auxiliary electrode and the cathode layer together, which can increase the conductivity of the cathode layer, thereby avoiding voltage drop. produce.
  • the present invention utilizes conductive spacers to lap the auxiliary electrode and the cathode layer together, so that the conductivity of the cathode layer can be improved, thereby avoiding the generation of voltage drop.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

一种有机发光显示面板,包括:第一基板、第二基板和导电隔垫物。第一基板包括位于非发光区域内的辅助电极。第二基板包括:薄膜晶体管基板;形成于薄膜晶体管基板上的第一电极层;形成于薄膜晶体管基板上的像素定义层,像素定义层在非发光区域内具有第一凹陷部,第一凹陷部与薄膜晶体管基板之间具有厚度差;覆盖在第一电极层和像素定义层上的有机发光层;以及形成于有机发光层上的第二电极层,第二电极层横越多个发光区域及非发光区域,且在非发光区域内具有对应第一凹陷部的第二凹陷部。导电隔垫物位于第一基板和第二基板之间,导电隔垫物设于第二凹陷部且电性接触于辅助电极和第二电极层,使得辅助电极通过导电隔垫物电性连接于第二电极层。

Description

有机发光显示面板及其制备方法 技术领域
本发明涉及显示技术领域,尤其涉及一种有机发光显示面板。
背景技术
有机发光显示器(Organic Light Emitting Display)系使用有机材料(organic material)来达到自我发光(self-emissive)的显示技术。
对于顶发光有机发光显示器(top emission OLED)而言,它可以有效提升有机发光显示器的开口率,但是它的透明阴极的高电阻值会造成压降(I-R drop),使得显示画面不具均匀性。上述缺陷在大尺寸的有机发光显示器尤其明显。
因此,有必要提供一种有机发光显示面板,以解决上述问题。
技术问题
顶发光有机发光显示器的透明阴极的高电阻值会造成压降,使得显示画面不具均匀性。
技术解决方案
本发明的目的在于提供一种有机发光显示面板及其制备方法,能够避免压降的产生,从而提升显示品质。
为实现上述目的,本发明提供一种有机发光显示面板,包括多个发光区域和至少一个位于所述发光区域之间的非发光区域,其中,所述有机发光显示面板包括:彩色滤光片,包括遮光层和至少一个位于所述非发光区域内的辅助电极,所述辅助电极位于所述遮光层的覆盖范围内;第二基板,与所述彩色滤光片相对设置,包括:薄膜晶体管基板;形成于所述薄膜晶体管基板上的第一电极层;形成于所述薄膜晶体管基板上的像素定义层,其中所述像素定义层在所述非发光区域内具有至少一个第一凹陷部,所述第一凹陷部与所述薄膜晶体管基板之间具有厚度差;覆盖在所述第一电极层和所述像素定义层上的有机发光层;以及形成于所述有机发光层上的第二电极层,其中所述第二电极层横越所述多个发光区域及所述至少一个非发光区域,且在所述非发光区域内具有至少一个对应所述第一凹陷部的第二凹陷部;以及至少一个导电隔垫物,位于所述彩色滤光片和所述第二基板之间,其中所述导电隔垫物设于所述第二凹陷部且电性接触于所述辅助电极和所述第二电极层,使得所述辅助电极通过所述导电隔垫物电性连接于所述第二电极层。
在一些实施例中,所述导电隔垫物位于所述遮光层的覆盖范围内。
在一些实施例中,所述第二凹陷部的开口形状为圆形、矩形或三角形的其中一种。
在一些实施例中,所述辅助电极的材料选自铝、钼、铜、氧化铟锡、银或金属合金的其中一种。
在一些实施例中,所述导电隔垫物的材料选自铝、钼、铜或金属合金的其中一种。
为实现上述目的,本发明还提供一种有机发光显示面板,包括多个发光区域和至少一个位于所述发光区域之间的非发光区域,其中,所述有机发光显示面板包括:第一基板,包括至少一个位于所述非发光区域内的辅助电极;第二基板,与所述第一基板相对设置,包括:薄膜晶体管基板;形成于所述薄膜晶体管基板上的第一电极层;形成于所述薄膜晶体管基板上的像素定义层,其中所述像素定义层在所述非发光区域内具有至少一个第一凹陷部,所述第一凹陷部与所述薄膜晶体管基板之间具有厚度差;覆盖在所述第一电极层和所述像素定义层上的有机发光层;以及形成于所述有机发光层上的第二电极层,其中所述第二电极层横越所述多个发光区域及所述至少一个非发光区域,且在所述非发光区域内具有至少一个对应所述第一凹陷部的第二凹陷部;以及至少一个导电隔垫物,位于所述第一基板和所述第二基板之间,其中所述导电隔垫物设于所述第二凹陷部且电性接触于所述辅助电极和所述第二电极层,使得所述辅助电极通过所述导电隔垫物电性连接于所述第二电极层。
在一些实施例中,所述第一基板还包括遮光层,所述辅助电极和所述导电隔垫物位于所述遮光层的覆盖范围内。
在一些实施例中,所述第一电极层为阳极层。
在一些实施例中,所述第二电极层为阴极层。
在一些实施例中,所述第二凹陷部的开口形状为圆形、矩形或三角形的其中一种。
在一些实施例中,所述辅助电极的材料选自铝、钼、铜、氧化铟锡、银或金属合金的其中一种。
在一些实施例中,所述导电隔垫物的材料选自铝、钼、铜或金属合金的其中一种。
在一些实施例中,所述第一基板为彩色滤光片。
为实现上述目的,本发明还提供一种有机发光显示面板的制备方法,包括:提供薄膜晶体管基板;在所述薄膜晶体管基板上形成第一电极层和像素定义层,以划分出多个发光区域和至少一个位于所述发光区域之间的非发光区域,其中所述第一电极层位于所述发光区域内;在所述像素定义层上形成至少一个第一凹陷部,其中所述第一凹陷部与所述薄膜晶体管基板之间具有厚度差;在所述第一电极层和所述像素定义层上覆盖形成有机发光层;在所述有机发光层上形成第二电极层,使得所述第二电极层在所述非发光区域内具有至少一个对应所述第一凹陷部的第二凹陷部;提供至少一个导电隔垫物,使得所述导电隔垫物设于所述第二凹陷部且电性接触于所述第二电极层;提供第一基板,其中所述第一基板包括至少一个对应于所述非发光区域的辅助电极;以及对接所述第一基板和所述薄膜晶体管基板,使得所述导电隔垫物电性接触于所述辅助电极,且所述辅助电极通过所述导电隔垫物电性连接于所述第二电极层。
在一些实施例中,所述在所述像素定义层上形成至少一个第一凹陷部的步骤包括:通过半色调掩膜工艺减薄所述像素定义层且形成所述第一凹陷部。
有益效果
本发明能够避免压降的产生,从而提升显示品质。
附图说明
为让本发明的特征以及技术内容能更明显易懂,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用,并非用来对本发明加以限制。
图1A-1G为实施本发明的有机发光显示面板的制备方法的局部剖视图。
本发明的实施方式
为了使本发明的目的、技术手段及其效果更加清楚明确,以下将结合附图对本发明作进一步地阐述。应当理解,此处所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例,并不用于限定本发明。
请参考图1A-1G,其示出实施本发明的有机发光显示面板的制备方法的局部剖视图。本发明的有机发光显示面板的制备方法,包括如下步骤:
首先,如图1A所示,提供薄膜晶体管基板20。其次,在薄膜晶体管基板20上形成第一电极层21和像素定义层24,以划分出多个发光区域AA和至少一个位于发光区域AA之间的非发光区域BB,其中第一电极层21位于发光区域AA内。具体地,发光区域AA可以为像素单元R、G、B。
再者,如图1B所示,在像素定义层24上形成至少一个第一凹陷部240,其中第一凹陷部240与薄膜晶体管基板20之间具有厚度差H。在一些实施例中,可以通过半色调掩膜工艺(half-tone mask process)减薄像素定义层24且形成第一凹陷部240。
接下来,如图1C所示,在第一电极层21和像素定义层24上覆盖形成有机发光层23。
再者,如图1D所示,在有机发光层23上形成第二电极层22,使得第二电极层22在非发光区域BB内具有至少一个对应第一凹陷部240的第二凹陷部220。
接下来,如图1E所示,提供至少一个导电隔垫物3,使得导电隔垫物3设于第二凹陷部220且电性接触于第二电极层22。
再者,如图1F所示,提供第一基板1,其中第一基板1包括至少一个对应于非发光区域BB的辅助电极10。在本实施例中,第一基板1为彩色滤光片。
最后,如图1G所示,对接第一基板1和薄膜晶体管基板20,使得导电隔垫物3电性接触于辅助电极10,且辅助电极10通过导电隔垫物3电性连接于第二电极层22。
继续参考图1G,其详细示出本发明的有机发光显示面板的局部剖视图。如图1G所示,本发明的有机发光显示面板包括多个发光区域AA和至少一个位于发光区域AA之间的非发光区域BB。再者,所述有机发光显示面板包括:第一基板1、第二基板2和至少一个导电隔垫物3。第一基板1包括至少一个位于非发光区域BB内的辅助电极10。具体地,第一基板1为彩色滤光片。此外,辅助电极10的材料选自铝、钼、铜、氧化铟锡、银或金属合金的其中一种。在本实施例中,第一基板1还包括遮光层12,且辅助电极10和导电隔垫物3位于遮光层12的覆盖范围内,如此使得辅助电极10和导电隔垫物3不被人眼所视及。
第二基板2与第一基板1相对设置,其包括:薄膜晶体管基板20、形成于薄膜晶体管基板20上的第一电极层21、形成于薄膜晶体管基板20上的像素定义层24、覆盖在第一电极层21和像素定义层24上的有机发光层23以及形成于有机发光层23上的第二电极层22。在本实施例中,像素定义层24在非发光区域BB内具有至少一个第一凹陷部240,第一凹陷部240与薄膜晶体管基板20之间具有厚度差H。再者,第二电极层22横越多个发光区域AA及至少一个非发光区域BB,且在非发光区域BB内具有至少一个对应第一凹陷部240的第二凹陷部220。具体地,第一电极层21为阳极层,第二电极层22为阴极层。在一些实施例中,第二凹陷部220的开口形状为圆形、矩形或三角形的其中一种。
如图1G所示,至少一个导电隔垫物3位于第一基板1和第二基板2之间。在本实施例中,导电隔垫物3设于第二凹陷部220且电性接触于辅助电极10和第二电极层22,如此使得辅助电极10通过导电隔垫物3电性连接于第二电极层22。具体地,导电隔垫物3的材料选自铝、钼、铜或金属合金的其中一种。
综上所述,本发明提供的有机发光显示面板及其制备方法,主要利用导电隔垫物来将辅助电极和阴极层搭接在一起,如此可以提高阴极层的导电率,从而避免压降的产生。
应当理解的是,本发明的应用不限于上述的举例,对本领域普通技术人员来说,可以根据上述说明加以改进或变换,所有这些改进和变换都应属于本发明所附权利要求的保护范围。
工业实用性
本发明利用导电隔垫物来将辅助电极和阴极层搭接在一起,如此可以提高阴极层的导电率,从而避免压降的产生。

Claims (15)

  1. 一种有机发光显示面板,包括多个发光区域和至少一个位于所述发光区域之间的非发光区域,其中,所述有机发光显示面板包括:
    彩色滤光片,包括遮光层和至少一个位于所述非发光区域内的辅助电极,所述辅助电极位于所述遮光层的覆盖范围内;
    第二基板,与所述彩色滤光片相对设置,包括:
    薄膜晶体管基板;
    形成于所述薄膜晶体管基板上的第一电极层;
    形成于所述薄膜晶体管基板上的像素定义层,其中所述像素定义层在所述非发光区域内具有至少一个第一凹陷部,所述第一凹陷部与所述薄膜晶体管基板之间具有厚度差;
    覆盖在所述第一电极层和所述像素定义层上的有机发光层;以及
    形成于所述有机发光层上的第二电极层,其中所述第二电极层横越所述多个发光区域及所述至少一个非发光区域,且在所述非发光区域内具有至少一个对应所述第一凹陷部的第二凹陷部;以及
    至少一个导电隔垫物,位于所述彩色滤光片和所述第二基板之间,其中所述导电隔垫物设于所述第二凹陷部且电性接触于所述辅助电极和所述第二电极层,使得所述辅助电极通过所述导电隔垫物电性连接于所述第二电极层。
  2. 如权利要求1所述的有机发光显示面板,其中,所述导电隔垫物位于所述遮光层的覆盖范围内。
  3. 如权利要求1所述的有机发光显示面板,其中,所述第二凹陷部的开口形状为圆形、矩形或三角形的其中一种。
  4. 如权利要求1所述的有机发光显示面板,其中,所述辅助电极的材料选自铝、钼、铜、氧化铟锡、银或金属合金的其中一种。
  5. 如权利要求1所述的有机发光显示面板,其中,所述导电隔垫物的材料选自铝、钼、铜或金属合金的其中一种。
  6. 一种有机发光显示面板,包括多个发光区域和至少一个位于所述发光区域之间的非发光区域,其中,所述有机发光显示面板包括:
    第一基板,包括至少一个位于所述非发光区域内的辅助电极;
    第二基板,与所述第一基板相对设置,包括:
    薄膜晶体管基板;
    形成于所述薄膜晶体管基板上的第一电极层;
    形成于所述薄膜晶体管基板上的像素定义层,其中所述像素定义层在所述非发光区域内具有至少一个第一凹陷部,所述第一凹陷部与所述薄膜晶体管基板之间具有厚度差;
    覆盖在所述第一电极层和所述像素定义层上的有机发光层;以及
    形成于所述有机发光层上的第二电极层,其中所述第二电极层横越所述多个发光区域及所述至少一个非发光区域,且在所述非发光区域内具有至少一个对应所述第一凹陷部的第二凹陷部;以及
    至少一个导电隔垫物,位于所述第一基板和所述第二基板之间,其中所述导电隔垫物设于所述第二凹陷部且电性接触于所述辅助电极和所述第二电极层,使得所述辅助电极通过所述导电隔垫物电性连接于所述第二电极层。
  7. 如权利要求6所述的有机发光显示面板,其中,所述第一基板还包括遮光层,所述辅助电极和所述导电隔垫物位于所述遮光层的覆盖范围内。
  8. 如权利要求6所述的有机发光显示面板,其中,所述第一电极层为阳极层。
  9. 如权利要求6所述的有机发光显示面板,其中,所述第二电极层为阴极层。
  10. 如权利要求6所述的有机发光显示面板,其中,所述第二凹陷部的开口形状为圆形、矩形或三角形的其中一种。
  11. 如权利要求6所述的有机发光显示面板,其中,所述辅助电极的材料选自铝、钼、铜、氧化铟锡、银或金属合金的其中一种。
  12. 如权利要求6所述的有机发光显示面板,其中,所述导电隔垫物的材料选自铝、钼、铜或金属合金的其中一种。
  13. 如权利要求6所述的有机发光显示面板,其中,所述第一基板为彩色滤光片。
  14. 一种有机发光显示面板的制备方法,包括:
    提供薄膜晶体管基板;
    在所述薄膜晶体管基板上形成第一电极层和像素定义层,以划分出多个发光区域和至少一个位于所述发光区域之间的非发光区域,其中所述第一电极层位于所述发光区域内;
    在所述像素定义层上形成至少一个第一凹陷部,其中所述第一凹陷部与所述薄膜晶体管基板之间具有厚度差;
    在所述第一电极层和所述像素定义层上覆盖形成有机发光层;
    在所述有机发光层上形成第二电极层,使得所述第二电极层在所述非发光区域内具有至少一个对应所述第一凹陷部的第二凹陷部;
    提供至少一个导电隔垫物,使得所述导电隔垫物设于所述第二凹陷部且电性接触于所述第二电极层;
    提供第一基板,其中所述第一基板包括至少一个对应于所述非发光区域的辅助电极;以及
    对接所述第一基板和所述薄膜晶体管基板,使得所述导电隔垫物电性接触于所述辅助电极,且所述辅助电极通过所述导电隔垫物电性连接于所述第二电极层。
  15. 如权利要求14所述的制备方法,其中,所述在所述像素定义层上形成至少一个第一凹陷部的步骤包括:通过半色调掩膜工艺减薄所述像素定义层且形成所述第一凹陷部。
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