WO2019205439A1 - Oled显示面板 - Google Patents

Oled显示面板 Download PDF

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Publication number
WO2019205439A1
WO2019205439A1 PCT/CN2018/105615 CN2018105615W WO2019205439A1 WO 2019205439 A1 WO2019205439 A1 WO 2019205439A1 CN 2018105615 W CN2018105615 W CN 2018105615W WO 2019205439 A1 WO2019205439 A1 WO 2019205439A1
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Prior art keywords
oled
layer
display area
display panel
transparent display
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PCT/CN2018/105615
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English (en)
French (fr)
Inventor
雷露
孙业熙
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武汉华星光电技术有限公司
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Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US16/097,278 priority Critical patent/US10665656B2/en
Publication of WO2019205439A1 publication Critical patent/WO2019205439A1/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
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays

Definitions

  • the present invention relates to the field of display technologies, and in particular, to an OLED display panel.
  • OLED Organic Light Emitting Diode
  • full-screen display panels In recent years, with the development of portable electronic display devices, the pursuit of high-screen ratio and extreme ultra-narrow bezels, known as "full-screen" display panels have become a research and development hotspot in the field of small and medium-sized display panels, and already in mobile phones Applicable on the display.
  • full screen is that it can maximize the display area of the display panel screen to give the user a better visual experience.
  • the prominent difficulty of the “full screen” design is the front camera on the front of the mobile phone.
  • the location of ambient light sensors, earpieces, and other light-sensing devices can be placed to take up minimal screen area without affecting the normal use of front-facing cameras, ambient light sensors, earpieces, and other light-sensing devices.
  • Apple's iphone X series mobile phone uses a profiled OLED display panel: a "U" shaped slot is cut in the middle of the top of the OLED display panel. In the "U" shaped groove area, components such as an infrared sensor, a distance sensor, an ambient light sensor, a front camera, and an earpiece are placed.
  • the profiled OLED display panel has obvious disadvantages, such as a complicated profile cutting process, which obviously increases the production cost; the film packaging difficulty of the profiled cutting zone is increased, and the package reliability is lowered; the GOA near the "U” shaped groove region
  • the line arrangement is different from other areas, which may cause uneven brightness in the area; when the picture or video is played in full screen, the “U” shaped groove area will block some pictures.
  • the object of the present invention is to provide an OLED display panel, which can be applied to a mobile phone to achieve high screen ratio, avoid profile cutting, simplify the manufacturing process, and reduce the manufacturing cost.
  • Another object of the present invention is to provide a mobile phone which not only has a high screen ratio, but also can avoid profile cutting, simplify the manufacturing process, and reduce the manufacturing cost.
  • the present invention provides an OLED display panel including at least one transparent display area and an effective display area surrounding the transparent display area and covering the OLED display panel;
  • a plurality of OLEDs are disposed in the effective display area for displaying a picture; the OLED includes an OLED anode layer and an OLED light emitting layer;
  • the effective display area is the same as the film layer provided by the transparent display area except for the OLED anode layer and the OLED light-emitting layer.
  • the transparent display region includes a substrate, a thin film transistor layer, a planarization layer, an organic photoresist layer, an OLED cathode layer and an encapsulation layer which are sequentially stacked from bottom to top;
  • planarization layer stacked on the thin film transistor layer, and a planarization layer located in the effective display region is provided with a first via hole;
  • An OLED anode layer disposed on the planarization layer and connected to the thin film transistor layer via the first via;
  • An organic photoresist layer stacked on the thin film transistor layer and the anode layer of the OLED, the organic photoresist layer in the effective display region is provided with a second via hole, and the second via hole exposes the anode layer of the OLED ;
  • An OLED light-emitting layer filled in the second via hole and connected to the anode layer of the OLED;
  • the OLED anode layer, the OLED light emitting layer and the OLED cathode layer constitute the OLED in the effective display region.
  • the transparent display area and the same film layer in the effective display area are completed in the same process.
  • the transparent display area is located at an upper edge of the OLED display panel.
  • the material of the substrate is polyimide.
  • the material of the planarization layer and the organic photoresist layer are both transparent organic materials.
  • the material of the OLED anode layer is a laminated combination of indium tin oxide and silver.
  • the invention also provides a mobile phone, comprising the above OLED display panel, and an electronic device placed on the mobile phone correspondingly disposed under the transparent display area.
  • the transparent display area is shaped and sized to match the shape and size of the electronic device previously placed under the transparent display area.
  • the electronic device that is placed in front of the mobile phone is at least one of a camera, a distance sensor, an infrared sensor, and an ambient light sensor.
  • the OLED display panel provided by the present invention is provided with a transparent display area and an effective display area surrounding the transparent display area and covering the OLED display panel.
  • the transparent display area is used for the electronic device placed on the mobile phone before being placed correspondingly, and can achieve a high screen ratio, which brings a better visual experience to the user; the effective display area is compared with the transparent display area.
  • An OLED anode layer and an OLED luminescent layer are disposed to display a normal image.
  • the effective display area is the same as the film layer provided by the transparent display area except for the OLED anode layer and the OLED light-emitting layer.
  • the film layer can be fabricated in the same process, which can avoid profile cutting, simplify the production process and reduce the production cost.
  • the invention provides a mobile phone, comprising the above OLED display panel, wherein an electronic device placed on the mobile phone is disposed under the transparent display area, which not only has a high screen ratio, but also can avoid profile cutting, simplify the manufacturing process, and reduce production cost.
  • FIG. 1 is a top plan view of an OLED display panel of the present invention
  • FIG. 2 is a cross-sectional structural view showing a transparent display region of an OLED display panel of the present invention
  • FIG. 3 is a cross-sectional structural view showing an effective display area of an OLED display panel of the present invention.
  • the present invention provides an OLED display panel including at least one transparent display area B and an effective display area A surrounding the transparent display area B and covering the OLED display panel.
  • the transparent display area B is used to be placed on the electronic device E of the mobile phone before being placed correspondingly; and the plurality of OLEDs D are disposed in the effective display area A for displaying a picture.
  • the transparent display area B is preferably designed on the upper edge of the OLED display panel and arranged in a linear direction.
  • the OLED display panel of the present invention can realize the high screen ratio by applying the transparent display area B and the effective display area A surrounding the transparent display area B and filling the OLED display panel, and applying the OLED display panel to the mobile phone. To give users a better visual experience.
  • the transparent display region B includes a substrate 1, a thin film transistor layer 2, a planarization layer 3, an organic photoresist layer 5, an OLED cathode layer 7, and an encapsulation layer 8 which are sequentially stacked from bottom to top.
  • planarization layer 3 stacked on the thin film transistor layer 2, the planarization layer 3 located in the effective display area A is provided with a first via 31;
  • the organic photoresist layer 5 is stacked on the thin film transistor layer 2 and the OLED anode layer 4, and the organic photoresist layer 5 located in the effective display region A is provided with a second via 51, and the second via 51 is provided. Exposing the OLED anode layer 4;
  • OLED cathode layer 7 laminated on the organic photoresist layer 5 and the OLED light emitting layer 6;
  • the effective display area A is more than the transparent display area B, and the patterned OLED anode layer 4 and the OLED light-emitting layer 6 are disposed, so that the OLED anode layer 4 and the OLED are in the effective display area A.
  • the luminescent layer 6 and the OLED cathode layer 7 constitute the OLED D for screen display; in addition to the OLED anode layer 4 and the OLED luminescent layer 6, the effective display area A and the transparent display area B are provided with a film
  • the layers are the same and the same film layers are essentially tiled over the entire surface.
  • the film layer of the transparent display region B and the same effective display region A can be fabricated in the same process, except that during the process of the planarization layer 3, the planarization layer located in the effective display region A 3, the first via hole 31 needs to be dug, and the planarization layer 3 located in the transparent display region B does not need to be punctured, and is located in the process of the organic photoresist layer 5 during the process.
  • the organic photoresist layer 5 in the display area A needs to be dug out of the second via hole 51, and the organic photoresist layer 5 located in the transparent display region B does not need to be diced.
  • the effective display area A is more than the transparent display area B, and the OLED anode layer 4 and the OLED light-emitting layer 6 are disposed to display a normal picture, except for the OLED anode layer 4 and the OLED light-emitting layer 6.
  • the effective display area A is the same as the film layer provided by the transparent display area B, and the same film layer can be completed in the same process, which can avoid profile cutting, simplify the manufacturing process, and reduce the manufacturing cost.
  • the material of the substrate 1 is a flexible high transparent material such as polyimide (PI);
  • the thin film transistor layer 2 includes a thin film transistor element, a semiconductor insulated from the gate of the thin film transistor element and the thin film transistor element.
  • An inorganic insulating layer between the layers, an inorganic insulating layer interposed between the semiconductor layer of the thin film transistor device and the source/drain of the thin film transistor device, and a source/drain phase of the gate of the thin film transistor device and the thin film transistor device, respectively Connected conductive lines (not shown), the gate of the thin film transistor device in the thin film transistor layer 2, the source/drain of the thin film transistor device, and the conductive line are made of a metal material having high transparency and good conductivity;
  • the material of the planarization layer 3 is a transparent organic material;
  • the material of the OLED anode layer 4 is preferably a combination combination of indium tin oxide (ITO) and silver (Ag) (such as ITO/Ag/ITO);
  • the present invention further provides a mobile phone.
  • the present invention further provides a mobile phone, comprising the above OLED display panel, and an electronic device E placed on the mobile phone correspondingly disposed under the transparent display area B.
  • the structure and beneficial technical effects of the OLED display panel will not be repeatedly described herein.
  • the shape and size of the transparent display area B match the shape and size of the electronic device E placed on the mobile phone corresponding to the transparent display area B.
  • the electronic device E placed on the mobile phone is at least one of a camera, a distance sensor, an infrared sensor and an ambient light sensor, and the corresponding transparent display area B is used to provide light input to the camera or the ambient light sensor.
  • Channels and transmission channels that provide sensing signals for distance sensors or infrared sensors.
  • the mobile phone of the present invention comprises the above OLED display panel, and an electronic device E placed on the mobile phone is disposed under the transparent display area B, which not only has a high screen ratio, but also can avoid profile cutting, simplify the manufacturing process, and reduce the production. cost.
  • the OLED display panel of the present invention is provided with a transparent display area and an effective display area surrounding the transparent display area and covering the OLED display panel.
  • the transparent display The area is placed on the bottom of the device corresponding to the electronic device of the mobile phone, which can achieve a high screen ratio and provide a better visual experience for the user; the effective display area is provided with an OLED anode more than the transparent display area.
  • the layer and the OLED light-emitting layer are normally displayed, except for the OLED anode layer and the OLED light-emitting layer, the effective display area is the same as the film layer provided by the transparent display area, and the same film layer can be in the same process
  • the finished production can avoid profile cutting, simplify the production process and reduce the production cost.
  • the mobile phone of the present invention includes the above-mentioned OLED display panel, and an electronic device placed on the mobile phone under the transparent display area not only has a high screen ratio, but also can avoid profile cutting, simplify the manufacturing process, and reduce the manufacturing cost.

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  • Microelectronics & Electronic Packaging (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

一种OLED显示面板及手机，该OLED显示面板设置有透明显示区域（B）及包围该透明显示区域（B）并布满该OLED显示面板的有效显示区域（A），该OLED显示面板应用于手机上时，该透明显示区域（B）用于在其下方对应安放前置于手机的电子器件，能够实现高屏占比，给使用者带来更好的视觉体验；该有效显示区域（A）相较该透明显示区域（B）多设置一层OLED阳极层（7）与一层OLED发光层（6）以正常显示画面，除该OLED阳极层（7）与OLED发光层（6）以外，该有效显示区域（A）与该透明显示区域（B）所设置的膜层相同，相同的膜层可在同一制程中制作完成，能够避免异形切割，简化制作工艺，降低制作成本。

Description

OLED显示面板 技术领域
本发明涉及显示技术领域，尤其涉及一种OLED显示面板。
背景技术
有机发光二极管显示面板(Organic Light Emitting Diode，OLED)是一种极具发展前景的显示产品，具有薄、轻、宽视角、主动发光、发光颜色连续可调、成本低、响应速度快、能耗小、驱动电压低、工作温度范围宽、生产工艺简单、发光效率高及可柔性显示等优点，得到了各大显示面板厂家的青睐，已成为显示技术领域中第三代显示器件的主力军。
近年来，随着便携式电子显示设备的发展，追求高屏占比与极限超窄边框、被称为“全面屏”的显示面板已成为中、小尺寸显示面板领域的研发热点，且已经在手机显示屏上得以应用。
“全面屏”的优势在于能够最大化地利用显示面板屏幕的显示面积，给使用者带来更好的视觉体验，于此同时，“全面屏”设计的突出难点是手机正面上部的前置摄像头、环境光传感器、听筒和其它感光器件的位置如何安放才能既占用最小的屏幕面积，又不影响前置摄像头、环境光传感器、听筒和其它感光器件的正常使用功能。
为解决上述问题，不同的显示产品制造商采用不同的技术方案，例如苹果公司的iphone X系列手机使用异形切割的OLED显示面板：在OLED显示面板顶部的中间位置切割出“U”形槽，在该“U”形槽区域内安放红外传感器、距离传感器、环境光传感器、前置摄像头和听筒等元件。然而，该异形切割的OLED显示面板存在明显的缺点，例如异形切割工艺复杂，会明显提高生产成本；异形切割区的薄膜封装难度增大，封装可靠度下降；“U”形槽区域附近的GOA线路排布不同于其它区域，可能引起该区域显示亮度不均；全屏播放图片或视频时，该“U”形槽区域会遮挡部分画面。
因此，亟需提出一种避免异形切割的高屏占比的OLED显示面板。
发明内容
本发明的目的在于提供一种OLED显示面板，应用于手机上既能够实现高屏占比，又能够避免异形切割，简化制作工艺，降低制作成本。
本发明的目的还在于提供一种手机，不仅具有高屏占比，还能够避免 异形切割，简化制作工艺，降低制作成本。
为实现上述目的，本发明提供一种OLED显示面板，包括至少一个透明显示区域及包围所述透明显示区域并布满该OLED显示面板的有效显示区域；
所述有效显示区域内设置多个OLED，用于显示画面；所述OLED包括OLED阳极层与OLED发光层；
除所述OLED阳极层与OLED发光层以外，所述有效显示区域与所述透明显示区域所设置的膜层相同。
所述透明显示区域包括自下而上依次层叠的基板、薄膜晶体管层、平坦化层、有机光阻层、OLED阴极层及封装层；
所述有效显示区域包括：
基板；
层叠于所述基板上的薄膜晶体管层；
层叠于所述薄膜晶体管层上的平坦化层，位于所述有效显示区域内的平坦化层开设有第一过孔；
设于所述平坦化层上并经由所述第一过孔连接所述薄膜晶体管层的OLED阳极层；
层叠于所述薄膜晶体管层与OLED阳极层上的有机光阻层，位于所述有效显示区域内的有机光阻层开设有第二过孔，所述第二过孔暴露出所述OLED阳极层；
填充于所述第二过孔内并连接所述OLED阳极层的OLED发光层；
层叠于所述有机光阻层与OLED发光层上的OLED阴极层；
以及层叠于所述OLED阴极层上的封装层；
在所述有效显示区域内，所述OLED阳极层、OLED发光层与OLED阴极层构成所述OLED。
所述透明显示区域与有效显示区域内相同的膜层在同一制程中制作完成。
所述透明显示区域位于OLED显示面板的上方边缘。
所述基板的材料为聚酰亚胺。
所述平坦化层与有机光阻层的材料均为透明有机材料。
所述OLED阳极层的材料为氧化铟锡和银的层叠组合。
本发明还提供一种手机，包括上述OLED显示面板，一所述透明显示区域下方对应安放一前置于手机的电子器件。
所述透明显示区域的形状及大小与对应安放于该透明显示区域下方的 前置于手机的电子器件的形状及大小相匹配。
所述前置于手机的电子器件为摄像头、距离传感器、红外传感器与环境光传感器之中的至少一种。
本发明的有益效果：本发明提供的一种OLED显示面板，设置有透明显示区域及包围所述透明显示区域并布满该OLED显示面板的有效显示区域，该OLED显示面板应用于手机上时，所述透明显示区域用于在其下方对应安放前置于手机的电子器件，能够实现高屏占比，给使用者带来更好的视觉体验；所述有效显示区域相较所述透明显示区域多设置一层OLED阳极层与一层OLED发光层以正常显示画面，除所述OLED阳极层与OLED发光层以外，所述有效显示区域与所述透明显示区域所设置的膜层相同，相同的膜层可在同一制程中制作完成，能够避免异形切割，简化制作工艺，降低制作成本。本发明提供的一种手机，包括上述OLED显示面板，一所述透明显示区域下方对应安放一前置于手机的电子器件，不仅具有高屏占比，还能够避免异形切割，简化制作工艺，降低制作成本。
附图说明
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。
附图中，
图1为本发明的OLED显示面板的平面俯视示意图；
图2为本发明的OLED显示面板的透明显示区域的剖面结构示意图；
图3为本发明的OLED显示面板的有效显示区域的剖面结构示意图。
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。需要说明的是：在本申请中附图仅为示意图，除非特别说明，并不代表各膜层之间的实际厚度比例、平坦程度、形状与图中相同，可以理解的是，因为工艺和制程限制，实际产品会与示意图有一定差异，例如孔洞的形状、各膜层相结合部分的形貌都会与示意图有所差别，这些是本领域技术人员能够理解并且知悉的。
请同时参阅图1至图3，本发明提供一种OLED显示面板，包括至少一个透明显示区域B及包围所述透明显示区域B并布满该OLED显示面板 的有效显示区域A。该OLED显示面板应用于手机上时，所述透明显示区域B用于在其下方对应安放前置于手机的电子器件E；所述有效显示区域A内设置多个OLED D，用于显示画面。
具体地：
所述透明显示区域B优选设计于OLED显示面板的上方边缘，并沿直线方向进行排列。
本发明的OLED显示面板通过设置所述透明显示区域B及包围所述透明显示区域B并布满该OLED显示面板的有效显示区域A，将该OLED显示面板应用于手机上能够实现高屏占比，给使用者带来更好的视觉体验。
具体地：
如图2所示，所述透明显示区域B包括自下而上依次层叠的基板1、薄膜晶体管层2、平坦化层3、有机光阻层5、OLED阴极层7及封装层8。
如图3所示，
所述有效显示区域A包括：
基板1；
层叠于所述基板1上的薄膜晶体管层2；
层叠于所述薄膜晶体管层2上的平坦化层3，位于所述有效显示区域A内的平坦化层3开设有第一过孔31；
设于所述平坦化层3上并经由所述第一过孔31连接所述薄膜晶体管层2的OLED阳极层4；
层叠于所述薄膜晶体管层2与OLED阳极层4上的有机光阻层5，位于所述有效显示区域A内的有机光阻层5开设有第二过孔51，所述第二过孔51暴露出所述OLED阳极层4；
填充于所述第二过孔51内并连接所述OLED阳极层4的OLED发光层6；
层叠于所述有机光阻层5与OLED发光层6上的OLED阴极层7；
以及层叠于所述OLED阴极层7上的封装层8。
可见，所述有效显示区域A相较所述透明显示区域B多设置了图案化的OLED阳极层4与OLED发光层6，从而在所述有效显示区域A内，所述OLED阳极层4、OLED发光层6与OLED阴极层7构成所述OLED D，以进行画面显示；除所述OLED阳极层4与OLED发光层6以外，所述有效显示区域A与所述透明显示区域B所设置的膜层相同，并且相同的膜层基本都是整面平铺的。
所述透明显示区域B与有效显示区域A内相同的膜层能够在同一制程 中制作完成，只不过在所述平坦化层3的制程过程中，位于所述有效显示区域A内的平坦化层3需挖出所述第一过孔31，而位于所述透明显示区域B内的平坦化层3则不需要挖孔，以及在所述有机光阻层5的制程过程中，位于所述有效显示区域A内的有机光阻层5需挖出所述第二过孔51，而位于所述透明显示区域B内的有机光阻层5则不需要挖孔。
本发明的OLED显示面板中，所述有效显示区域A相较所述透明显示区域B多设置OLED阳极层4与OLED发光层6以正常显示画面，除所述OLED阳极层4与OLED发光层6以外，所述有效显示区域A与所述透明显示区域B所设置的膜层相同，相同的膜层在可同一制程中制作完成，能够避免异形切割，简化制作工艺，降低制作成本。
进一步地：所述基板1的材料为聚酰亚胺(Polyimide，PI)等柔性高透明材料；所述薄膜晶体管层2包括薄膜晶体管元件、隔绝在薄膜晶体管元件的栅极与薄膜晶体管元件的半导体层之间的无机绝缘层、隔绝在薄膜晶体管元件的半导体层与薄膜晶体管元件的源/漏极之间的无机绝缘层以及分别与薄膜晶体管元件的栅极、薄膜晶体管元件的源/漏极相连接的导电线路(未图示)，该薄膜晶体管层2内薄膜晶体管元件的栅极、薄膜晶体管元件的源/漏极及导电线路选用透明度较高、导电性好的金属材料来进行制作；所述平坦化层3材料为透明有机材料；所述OLED阳极层4的材料优选为氧化铟锡(Indium Tin Oxide，ITO)和银(Ag)的层叠组合(如ITO/Ag/ITO)；所述有机光阻层5的材料为透明有机材料；所述OLED阴极层7亦选用透明度较高、导电性好的金属材料来进行制作。
本发明还提供一种手机，请参照图1至图3，本发明还提供一种手机，包括上述OLED显示面板，一所述透明显示区域B下方对应安放一前置于手机的电子器件E。此处不再对所述OLED显示面板的结构及有益技术效果进行重复性描述。
具体地，所述透明显示区域B的形状及大小与对应安放于该透明显示区域B下方的前置于手机的电子器件E的形状及大小相匹配。进一步地，所述前置于手机的电子器件E为摄像头、距离传感器、红外传感器与环境光传感器之中的至少一种，相应的透明显示区域B用于为摄像头或环境光传感器提供光线进入的通道以及为距离传感器或红外传感器提供传感信号的传输通道。
本发明的手机，包括上述OLED显示面板，一所述透明显示区域B下方对应安放一前置于手机的电子器件E，不仅具有高屏占比，还能够避免异形切割，简化制作工艺，降低制作成本。
综上所述，本发明的OLED显示面板，设置有透明显示区域及包围所述透明显示区域并布满该OLED显示面板的有效显示区域，该OLED显示面板应用于手机上时，所述透明显示区域在其下方对应安放前置于手机的电子器件，能够实现高屏占比，给使用者带来更好的视觉体验；所述有效显示区域相较所述透明显示区域多设置一层OLED阳极层与一层OLED发光层以正常显示画面，除所述OLED阳极层与OLED发光层以外，所述有效显示区域与所述透明显示区域所设置的膜层相同，相同的膜层可在同一制程中制作完成，能够避免异形切割，简化制作工艺，降低制作成本。本发明的手机，包括上述OLED显示面板，一所述透明显示区域下方对应安放一前置于手机的电子器件，不仅具有高屏占比，还能够避免异形切割，简化制作工艺，降低制作成本。
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的权利要求的保护范围。

Claims (10)

  1. 一种OLED显示面板，包括至少一个透明显示区域及包围所述透明显示区域并布满该OLED显示面板的有效显示区域；
    所述有效显示区域内设置多个OLED，用于显示画面；所述OLED包括OLED阳极层与OLED发光层；
    除所述OLED阳极层与OLED发光层以外，所述有效显示区域与所述透明显示区域所设置的膜层相同。
  2. 如权利要求1所述的OLED显示面板，其中，所述透明显示区域包括自下而上依次层叠的基板、薄膜晶体管层、平坦化层、有机光阻层、OLED阴极层及封装层；
    所述有效显示区域包括：
    基板；
    层叠于所述基板上的薄膜晶体管层；
    层叠于所述薄膜晶体管层上的平坦化层，位于所述有效显示区域内的平坦化层开设有第一过孔；
    设于所述平坦化层上并经由所述第一过孔连接所述薄膜晶体管层的OLED阳极层；
    层叠于所述薄膜晶体管层与OLED阳极层上的有机光阻层，位于所述有效显示区域内的有机光阻层开设有第二过孔，所述第二过孔暴露出所述OLED阳极层；
    填充于所述第二过孔内并连接所述OLED阳极层的OLED发光层；
    层叠于所述有机光阻层与OLED发光层上的OLED阴极层；
    以及层叠于所述OLED阴极层上的封装层；
    在所述有效显示区域内，所述OLED阳极层、OLED发光层与OLED阴极层构成所述OLED。
  3. 如权利要求2所述的OLED显示面板，其中，所述透明显示区域与有效显示区域内相同的膜层在同一制程中制作完成。
  4. 如权利要求1所述的OLED显示面板，其中，所述透明显示区域位于OLED显示面板的上方边缘。
  5. 如权利要求2所述的OLED显示面板，其中，所述基板的材料为聚酰亚胺。
  6. 如权利要求2所述的OLED显示面板，其中，所述平坦化层与有机 光阻层的材料均为透明有机材料。
  7. 如权利要求2所述的OLED显示面板，其中，所述OLED阳极层的材料为氧化铟锡和银的层叠组合。
  8. 一种手机，包括如权利要求1所述的OLED显示面板，一所述透明显示区域下方对应安放一前置于手机的电子器件。
  9. 如权利要求8所述的手机，其中，所述透明显示区域的形状及大小与对应安放于该透明显示区域下方的前置于手机的电子器件的形状及大小相匹配。
  10. 如权利要求9所述的手机，其中，所述前置于手机的电子器件为摄像头、距离传感器、红外传感器与环境光传感器之中的至少一种。
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