WO2021012400A1 - 一种显示面板和显示装置 - Google Patents

一种显示面板和显示装置 Download PDF

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Publication number
WO2021012400A1
WO2021012400A1 PCT/CN2019/110039 CN2019110039W WO2021012400A1 WO 2021012400 A1 WO2021012400 A1 WO 2021012400A1 CN 2019110039 W CN2019110039 W CN 2019110039W WO 2021012400 A1 WO2021012400 A1 WO 2021012400A1
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WIPO (PCT)
Prior art keywords
light
sub
layer
region
display panel
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PCT/CN2019/110039
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English (en)
French (fr)
Inventor
张文智
唐芮
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武汉华星光电半导体显示技术有限公司
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Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US16/633,338 priority Critical patent/US20210028389A1/en
Publication of WO2021012400A1 publication Critical patent/WO2021012400A1/zh

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    • 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
    • H10K50/805—Electrodes
    • H10K50/82—Cathodes
    • H10K50/824—Cathodes combined with auxiliary electrodes
    • 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
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
    • H10K59/65—OLEDs integrated with inorganic image sensors

Definitions

  • This application relates to the field of display technology, and in particular to a display panel and a display device.
  • the cathode layer is usually a semi-transparent metal thin layer, such as Mg:Ag alloy.
  • the light transmittance of the cathode can be increased to a certain extent by reducing its thickness, but it will cause a sharp drop in the conductivity of the cathode, thereby affecting the display effect of the OLED display panel.
  • the present application provides a display panel and a display device, which can solve the problem that the low light transmittance of the light transmission area of the OLED display panel used to set the under-screen camera affects the performance of the camera, and the setting of the light transmission area affects the OLED display panel The display effect.
  • This application provides a display panel, including:
  • a substrate includes: a display area and a non-display area, the display area includes: a normal display sub-area and a light-transmitting sub-area for lighting the camera assembly;
  • the anode layer is arranged on the substrate;
  • the light-emitting layer is arranged on the anode layer
  • the cathode layer is arranged on the light-emitting layer, and the cathode layer includes at least one main electrode sublayer and at least one transparent auxiliary electrode sublayer stacked in the normal display sub-region, and the cathode layer is on the
  • the light-transmitting sub-region includes at least one layer of the transparent auxiliary electrode sub-layer.
  • the main electrode sublayer in the normal display subregion, is in contact with the light-emitting layer, and the transparent auxiliary electrode sublayer is located on the main electrode sublayer, wherein The main electrode sub-layer is disconnected at the boundary of the light-transmitting sub-region, and the transparent auxiliary electrode sub-layer is in contact with the light-emitting layer in the light-transmitting sub-region.
  • the anode layer, the light-emitting layer, and the cathode layer form pixel units distributed at intervals, wherein the distribution density of the pixel units in the normal display sub-region is greater than or equal to the The distribution density in the light-transmitting sub-region.
  • an opening area is formed at intervals in the light-transmitting subarea corresponding to the gap between two adjacent pixel units, and The display panel is formed with a hole in the position corresponding to the opening area.
  • the transparent auxiliary electrode sub-layer corresponding to the light-transmitting sub-region is patterned to form an electrode unit corresponding to the pixel unit, and is located between two adjacent holes for The electrode leads of two adjacent electrode units are electrically connected, wherein the electrode unit, the electrode lead, and the transparent auxiliary electrode sublayer outside the light-transmitting sub-region are integrally formed.
  • the material of the transparent auxiliary electrode sublayer includes one or more of graphene, indium tin oxide, and aluminum-doped zinc oxide, and the material of the main electrode sublayer is half Transparent metal material.
  • the orthographic projection range of the transparent auxiliary electrode sublayer on the display panel is greater than the orthographic projection range of the light-transmitting sub-region on the display panel, and is less than or equal to the main The orthographic projection range of the electrode sublayer on the display panel.
  • the present application also provides a display device, including the display panel and the camera assembly as described above;
  • the camera assembly is disposed on the back of the display panel corresponding to the light-transmitting sub-region, and the camera assembly is used to photograph an object on the side of the display panel away from the camera assembly.
  • the camera assembly includes a photosensitive unit, and the photosensitive unit is used to sense light emitted from the outside through the light-transmitting sub-region of the display panel to the photosensitive unit.
  • the range of the photon area is the photosensitive range of the photosensitive unit.
  • the present application also provides a display panel, including:
  • a substrate includes: a display area and a non-display area, the display area includes: a normal display sub-area and a light-transmitting sub-area for lighting the camera assembly;
  • the anode layer is arranged on the substrate;
  • the light-emitting layer is arranged on the anode layer
  • the cathode layer is arranged on the light-emitting layer, and the cathode layer includes at least one main electrode sublayer and at least one transparent auxiliary electrode sublayer stacked in the normal display sub-region, and the cathode layer is on the
  • the light-transmitting sub-region includes at least one layer of the transparent auxiliary electrode sub-layer;
  • the film thickness of the transparent auxiliary electrode sub-layer in the part corresponding to the light-transmitting sub-region is greater than or equal to the film thickness in the part corresponding to the normal display sub-region.
  • the main electrode sublayer in the normal display subregion, is in contact with the light-emitting layer, and the transparent auxiliary electrode sublayer is located on the main electrode sublayer, wherein The main electrode sub-layer is disconnected at the boundary of the light-transmitting sub-region, and the transparent auxiliary electrode sub-layer is in contact with the light-emitting layer in the light-transmitting sub-region.
  • the anode layer, the light-emitting layer, and the cathode layer form pixel units distributed at intervals, wherein the distribution density of the pixel units in the normal display sub-region is greater than or equal to the The distribution density in the light-transmitting sub-region.
  • an opening area is formed at intervals in the light-transmitting subarea corresponding to the gap between two adjacent pixel units, and The display panel is formed with a hole in the position corresponding to the opening area.
  • the transparent auxiliary electrode sub-layer corresponding to the light-transmitting sub-region is patterned to form an electrode unit corresponding to the pixel unit, and is located between two adjacent holes for The electrode leads of two adjacent electrode units are electrically connected, wherein the electrode unit, the electrode lead, and the transparent auxiliary electrode sublayer outside the light-transmitting sub-region are integrally formed.
  • the material of the transparent auxiliary electrode sublayer includes one or more of graphene, indium tin oxide, and aluminum-doped zinc oxide, and the material of the main electrode sublayer is half Transparent metal material.
  • the orthographic projection range of the transparent auxiliary electrode sublayer on the display panel is greater than the orthographic projection range of the light-transmitting sub-region on the display panel, and is less than or equal to the main The orthographic projection range of the electrode sublayer on the display panel.
  • the beneficial effect of the present application is that compared with the existing under-screen camera display device, the display panel and display device provided by the present application are located on the light-transmitting sub-region of the under-screen camera with the photosensitive area (transmitting sub-region) of the under-screen camera as the boundary.
  • the cathode layer outside the sub-region is composed of at least one main electrode sub-layer and at least one transparent auxiliary electrode sub-layer, while the cathode layer inside the light-transmitting sub-region is solely composed of at least one transparent auxiliary electrode sub-layer.
  • This design not only improves the transmittance of external light in the light-transmitting sub-region, but also ensures the displayability of the light-transmitting sub-region, so that the shooting performance of the under-screen camera and the display effect of the display panel are better.
  • FIG. 1 is a schematic structural diagram of a display panel provided by an embodiment of the application.
  • Figure 2 is a cross-sectional view along the E-E' section in Figure 1;
  • FIG. 3 is a schematic plan view of a light-transmitting sub-region of another display panel provided by an embodiment of the application;
  • FIG. 4 is a schematic structural diagram of a display device provided by an embodiment of the application.
  • This application is directed to the existing under-screen camera display device.
  • the low light transmittance of the light-transmitting area above the under-screen camera of the display panel affects the performance of the camera, and the setting of the light-transmitting area affects the display effect of the OLED display panel
  • the technical problem of this embodiment can solve the defect.
  • the display panel of the present application is an under-screen camera-type display panel, which includes a display area and a non-display area D.
  • the display area includes a normal display sub-area A and a camera component for lighting Light-transmitting sub-area B.
  • the under-screen camera assembly is used to be arranged on the back of the display panel at a position corresponding to the light-transmitting sub-region B, and the camera assembly is used to photograph objects on the side of the display panel away from the camera assembly. That is, external light can be emitted to the camera assembly through the light-transmitting sub-region B, so as to realize the normal use of the camera assembly.
  • the display panel includes a substrate 101, and the substrate 101 may be an array substrate prepared with thin film transistors (not shown).
  • An anode layer 102 is prepared on the substrate 101, the anode layer 102 includes anodes distributed in an array, a pixel defining layer 103 is prepared at the gap between two adjacent anodes, and a light emitting layer 104 is prepared on the anode layer.
  • the cathode layer 105 is prepared on the light-emitting layer 104, wherein the anode layer 102, the light-emitting layer 104, and the cathode layer 105 are stacked to form a plurality of pixel units.
  • the distribution density of the pixel units in the normal display sub-region A outside the light-transmitting sub-region B is greater than or equal to the distribution density in the light-transmitting sub-region B.
  • the display panel may also include conventional film layers such as a thin film encapsulation layer (not shown), which is not limited here.
  • the cathode layer 105 includes at least one main electrode sublayer 105a and at least one transparent auxiliary electrode sublayer 105b that are stacked.
  • the cathode layer 105 of the display panel corresponding to the normal display sub-region A includes at least one main electrode sublayer 105a and at least one transparent auxiliary electrode sublayer 105b, and the display panel corresponds to the transparent
  • the cathode layer 105 of the photon zone B is at least one layer of the transparent auxiliary electrode sublayer 105b.
  • the shape of the light-transmitting sub-region B includes but is not limited to square, diamond, circle, drop shape, ellipse, etc., and does not limit the position of the light-transmitting sub-region B.
  • the main electrode sub-layer 105a is in contact with the light-emitting layer 104, and the transparent auxiliary electrode sub-layer 105b is located in the normal display sub-region A.
  • the transparent auxiliary electrode sub-layer 105b is in contact with the light-emitting layer 104 in the light-transmitting sub-region B.
  • the transparent auxiliary electrode sub-layer 105b is a continuous film.
  • the material of the main electrode sublayer 105a is a semi-transparent metal material, including but not limited to one or more alloy materials among metal materials such as Al, Mg, and Ca.
  • the main electrode sub-layer 105a may include a single layer or multiple layers, and its thickness is preferably in the range of 0.1 nm to 20 nm.
  • the main electrode sub-layer 105a covers the part inside the normal display sub-region A and outside the light-transmitting sub-region B.
  • the material of the transparent auxiliary electrode sub-layer 105b is a transparent material, which includes but is not limited to one or more of graphene, indium tin oxide, and aluminum-doped zinc oxide.
  • the material of the transparent auxiliary electrode sub-layer 105b is graphene.
  • the graphene material has high carrier mobility and superior electrical conductivity, and also has very good optical properties, and is in a wide wavelength range.
  • the absorption rate is about 2.3% and it looks almost transparent. Within the thickness of several layers of graphene, each additional layer of thickness increases the absorption rate by 2.3%, and its optical properties change with the thickness of graphene.
  • the orthographic projection range of the transparent auxiliary electrode sublayer 105b on the display panel is greater than the orthographic projection range of the light-transmitting sub-region B on the display panel, and is less than or equal to the main electrode sublayer 105a The orthographic projection range on the display panel.
  • the cathode layer 105 outside the light-transmitting sub-region B of the display panel is composed of at least one main electrode sub-layer 105a and at least one transparent auxiliary electrode sub-layer 105b
  • the cathode layer 105 inside the light-transmitting sub-region B is composed of at least one layer of the transparent auxiliary electrode sub-layer 105b alone.
  • the transparent auxiliary electrode sub-layer 105b serves as a cathode and forms the pixel unit that can emit light with the light-emitting layer 104 and the anode layer 102.
  • the high light transmittance of the transparent auxiliary electrode sub-layer 105b also makes it possible for external light to pass through the inner part of the light-transmitting sub-region B into the photosensitive unit in the camera assembly under the screen.
  • the thickness of the film layer of the transparent auxiliary electrode sub-layer 105b in the portion corresponding to the light-transmitting sub-region B is greater than or equal to that of the normal display element outside the corresponding light-transmitting sub-region B
  • the thickness of the film layer of the part of the region A, the specific film thickness is not limited, as long as the excellent conductivity in the light-transmitting sub-region B can be ensured.
  • the film thickness of the transparent auxiliary electrode sub-layer 105b at the portion corresponding to the light-transmitting sub-region B is equal to the thickness of the normal display sub-region A outside the light-transmitting sub-region B
  • the film thickness of the cathode layer 105 makes the film thickness of the cathode layer 105 uniform throughout the display panel, which facilitates subsequent film preparation and ensures excellent electrical conductivity throughout the cathode layer 105.
  • the distribution density of the pixel units in the normal display sub-region A is greater than the distribution density in the light-transmitting sub-region B.
  • the transparent auxiliary electrode sublayer 105b corresponding to the light-transmitting subregion B is patterned, and the transparent auxiliary electrode sublayer 105b is patterned to form the electrode unit 107 corresponding to the pixel unit, and
  • an opening area C corresponding to the gap between two adjacent pixel units and arranged at intervals is formed, and the display panel is formed with a hole 106 at a position corresponding to the opening area C.
  • the excavated hole 106 can penetrate through the organic film layer and the inorganic film layer on the display panel without affecting the display of the pixel unit in the light-transmitting sub-region B, so
  • the organic film layer includes but is not limited to the pixel defining layer
  • the inorganic film layer includes but is not limited to a passivation layer, an interlayer insulating layer, a gate insulating layer, and the like.
  • an electrode lead 108 for electrically connecting two adjacent electrode units 107 is also formed between two adjacent holes 106, wherein, The electrode unit 107, the electrode lead 108, and the transparent auxiliary electrode sub-layer 105b outside the light-transmitting sub-region B are integrally formed.
  • the digging hole 106 may be a blind hole, that is, the transparent auxiliary electrode sublayer 105b of the light-transmitting sub-region B does not need to be patterned, but it is not limited to this.
  • the shape of the opening area C or the excavated hole 106 is not limited, and the opening area C or the excavated hole 106 should be as large as possible without affecting the normal display.
  • the present application also provides a display device.
  • the display device includes a display panel 10 and a camera assembly 20 as described above; the camera assembly 20 is disposed in the display corresponding to the light-transmitting sub-region B.
  • the camera assembly 20 is used to photograph objects on the side of the display panel 10 away from the camera assembly 20.
  • the camera assembly 20 includes a photosensitive unit 201, which is used to sense light emitted from the outside through the light-transmitting sub-area B of the display panel 10 to the photosensitive unit 201, so as to realize the camera Normal shooting of component 20.
  • the range of the light-transmitting sub-region B is the photosensitive range of the photosensitive unit 201.
  • the display panel and display device provided by the present application are bounded by the light-sensitive area (light-transmitting sub-area) of the camera under the screen, and the cathode layer located outside the light-transmitting sub-area of the display panel adopts at least one main electrode sub-area.
  • the layer and at least one transparent auxiliary electrode sub-layer are jointly constituted, and the cathode layer within the light-transmitting sub-region is only constituted by at least one transparent auxiliary electrode sub-layer alone.

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Abstract

本申请提供一种显示面板和显示装置，显示面板包括显示区与非显示区，显示区包括正常显示子区和用于摄像头组件采光的透光子区；显示面板上设置有阴极层，阴极层在正常显示子区包括至少一层主电极子层和至少一层透明辅助电极子层；阴极层在透光子区包括至少一层透明辅助电极子层，以提高外界光在透光子区的透过率。

Description

一种显示面板和显示装置 技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板和显示装置。
 背景技术
随着消费者对屏占比需求的提高，屏下摄像头式OLED显示面板已成为OLED显示面板领域主流设计方案之一。对屏下摄像头来说，必须保证摄像头正上方的透光区域中的各膜层有足够的光透过率。在传统的顶发射OLED显示面板中，考虑到电子注入势垒，阴极层通常选用半透明的金属薄层，如Mg:Ag合金等。对于金属薄层阴极来说，通过减薄其厚度能够在一定程度上提升阴极的光透过率，但却会造成阴极导电性的急剧下降，从而影响OLED显示面板的显示效果。
因此，现有技术存在缺陷，急需改进。
 技术问题
本申请提供一种显示面板和显示装置，能够解决OLED显示面板用于设置屏下摄像头的透光区域的光透过率较低影响摄像头性能的问题，以及透光区域的设置影响OLED显示面板的显示效果的问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请提供一种显示面板，包括：
基板，所述基板包括：显示区和非显示区，所述显示区包括：正常显示子区和用于摄像头组件采光的透光子区；
阳极层，设置在所述基板上；
发光层，设置在所述阳极层上；
阴极层，设置在所述发光层上，所述阴极层在所述正常显示子区包括层叠设置的至少一层主电极子层和至少一层透明辅助电极子层，所述阴极层在所述透光子区包括至少一层所述透明辅助电极子层。
在本申请的显示面板中，在所述正常显示子区内，所述主电极子层与所述发光层接触，所述透明辅助电极子层位于所述主电极子层之上，其中，所述主电极子层在所述透光子区的边界处断开，所述透明辅助电极子层与所述透光子区内的所述发光层接触。
在本申请的显示面板中，所述阳极层、所述发光层以及所述阴极层形成间隔分布的像素单元，其中，所述像素单元在所述正常显示子区的分布密度大于或等于所述透光子区内的分布密度。
在本申请的显示面板中，所述透明辅助电极子层经图案化后在所述透光子区内对应相邻两所述像素单元之间的间隙位置形成有间隔设置的开口区，所述显示面板在对应所述开口区的位置形成有挖孔。
在本申请的显示面板中，对应所述透光子区的所述透明辅助电极子层经图案化后形成对应所述像素单元的电极单元，以及位于相邻两所述挖孔之间用于电连接相邻两所述电极单元的电极引线，其中，所述电极单元、所述电极引线以及所述透光子区外的所述透明辅助电极子层为一体成型。
在本申请的显示面板中，所述透明辅助电极子层的材料包括石墨烯、氧化铟锡、铝掺杂的氧化锌中的一种或一种以上，所述主电极子层的材料为半透明金属材料。
在本申请的显示面板中，所述透明辅助电极子层在所述显示面板上的正投影范围大于所述透光子区在所述显示面板上的正投影范围，且小于或等于所述主电极子层在所述显示面板上的正投影范围。
为解决上述技术问题，本申请还提供一种显示装置，包括如上所述的显示面板和摄像头组件；
所述摄像头组件对应所述透光子区设置于所述显示面板的背部，所述摄像头组件用于拍摄所述显示面板背离所述摄像头组件一侧的物体。
在本申请的显示装置中，所述摄像头组件包括感光单元，所述感光单元用于感应从外界透过所述显示面板的所述透光子区射向所述感光单元的光线，所述透光子区的范围为所述感光单元的感光范围。
为解决上述问题，本申请还提供一种显示面板，包括：
基板，所述基板包括：显示区和非显示区，所述显示区包括：正常显示子区和用于摄像头组件采光的透光子区；
阳极层，设置在所述基板上；
发光层，设置在所述阳极层上；
阴极层，设置在所述发光层上，所述阴极层在所述正常显示子区包括层叠设置的至少一层主电极子层和至少一层透明辅助电极子层，所述阴极层在所述透光子区包括至少一层所述透明辅助电极子层；
所述透明辅助电极子层在对应所述透光子区的部分的膜层厚度大于或等于其在对应所述正常显示子区的部分的膜层厚度。
在本申请的显示面板中，在所述正常显示子区内，所述主电极子层与所述发光层接触，所述透明辅助电极子层位于所述主电极子层之上，其中，所述主电极子层在所述透光子区的边界处断开，所述透明辅助电极子层与所述透光子区内的所述发光层接触。
在本申请的显示面板中，所述阳极层、所述发光层以及所述阴极层形成间隔分布的像素单元，其中，所述像素单元在所述正常显示子区的分布密度大于或等于所述透光子区内的分布密度。
在本申请的显示面板中，所述透明辅助电极子层经图案化后在所述透光子区内对应相邻两所述像素单元之间的间隙位置形成有间隔设置的开口区，所述显示面板在对应所述开口区的位置形成有挖孔。
在本申请的显示面板中，对应所述透光子区的所述透明辅助电极子层经图案化后形成对应所述像素单元的电极单元，以及位于相邻两所述挖孔之间用于电连接相邻两所述电极单元的电极引线，其中，所述电极单元、所述电极引线以及所述透光子区外的所述透明辅助电极子层为一体成型。
在本申请的显示面板中，所述透明辅助电极子层的材料包括石墨烯、氧化铟锡、铝掺杂的氧化锌中的一种或一种以上，所述主电极子层的材料为半透明金属材料。
在本申请的显示面板中，所述透明辅助电极子层在所述显示面板上的正投影范围大于所述透光子区在所述显示面板上的正投影范围，且小于或等于所述主电极子层在所述显示面板上的正投影范围。
 有益效果
本申请的有益效果为：相较于现有的屏下摄像头显示装置，本申请提供的显示面板和显示装置，以屏下摄像头的感光区域（透光子区）为界限，位于显示面板透光子区以外部分的阴极层采用至少一层主电极子层和至少一层透明辅助电极子层共同构成，而透光子区以内部分的阴极层仅由至少一层透明辅助电极子层单独构成。采用此设计，既提高了外界光在透光子区的透过率，同时也保证了透光子区的可显示性，从而使得屏下摄像头的拍摄性能以及显示面板的显示效果更优。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的显示面板的结构示意图；
图2为图1中沿E-E’截面的截面图；
图3为本申请实施例提供的另一种显示面板的透光子区平面示意图；
图4为本申请实施例提供的显示装置的结构示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。
本申请针对现有的屏下摄像头显示装置，存在显示面板的屏下摄像头上方的透光区域的光透过率较低影响摄像头性能的问题，以及透光区域的设置影响OLED显示面板的显示效果的技术问题，本实施例能够解决该缺陷。
如图1所示，为本申请实施例提供的显示面板的结构示意图。为提高屏占比，本申请的所述显示面板为屏下摄像头式的显示面板，其包括：显示区与非显示区D，所述显示区包括正常显示子区A和用于摄像头组件采光的透光子区B。屏下摄像头组件用于设置在所述显示面板的背部对应所述透光子区B的位置，所述摄像头组件用于拍摄所述显示面板背离所述摄像头组件一侧的物体。即外界光可通过所述透光子区B射向所述摄像头组件，实现所述摄像头组件的正常使用。
如图2所示，为图1中沿E-E’截面的截面图。所述显示面板包括基板101，所述基板101可以为制备有薄膜晶体管（未图示）的阵列基板。所述基板101上制备有阳极层102，所述阳极层102包括阵列分布的阳极，在相邻两所述阳极之间的间隙处制备有像素界定层103，发光层104制备于所述阳极层102之上。阴极层105制备于所述发光层104之上，其中，层叠设置的所述阳极层102、所述发光层104以及所述阴极层105形成多个像素单元。
其中，所述像素单元在所述透光子区B外的所述正常显示子区A的分布密度大于或等于所述透光子区B内的分布密度。
所述显示面板还可以包括薄膜封装层（未图示）等常规膜层，此处不做限制。
其中，所述阴极层105包括层叠设置的至少一层主电极子层105a和至少一层透明辅助电极子层105b。所述显示面板对应所述正常显示子区A的所述阴极层105包括至少一层所述主电极子层105a和至少一层所述透明辅助电极子层105b，所述显示面板对应所述透光子区B的所述阴极层105为至少一层所述透明辅助电极子层105b。
其中，所述透光子区B的形状包括但不限于方形，菱形，圆形，水滴形，椭圆形等，且并不限定所述透光子区B所处的位置。
如图2中所示，在所述透光子区B外的所述正常显示子区A，所述主电极子层105a与所述发光层104接触，所述透明辅助电极子层105b位于所述主电极子层105a之上，其中，所述主电极子层105a在所述透光子区B的边界处断开，即对应所述透光子区B的所述主电极子层105a被去除，所述透明辅助电极子层105b与所述透光子区B内的所述发光层104接触。其中，所述透明辅助电极子层105b为一整层连续的薄膜。
为保证良好的电子注入势垒，所述主电极子层105a的材料为半透明金属材料，包括但不限于Al，Mg，Ca等金属材料中的一种或一种以上的合金材料。所述主电极子层105a可以包括单层或多层，其厚度优选为介于0.1nm~20nm的范围内。所述主电极子层105a覆盖所述正常显示子区A以内且所述透光子区B以外的部分。所述透明辅助电极子层105b的材料为透明材料，其包括但不限于石墨烯、氧化铟锡、铝掺杂的氧化锌中的一种或一种以上。
优选的，所述透明辅助电极子层105b的材料为石墨烯，石墨烯材料具有较高的载流子迁移率以及超强的导电性能，还具有非常良好的光学特性，在较宽波长范围内吸收率约为2.3%，看上去几乎是透明的。在几层石墨烯厚度范围内，厚度每增加一层，吸收率增加2.3%，其光学特性随石墨烯厚度的改变而发生变化。
其中，所述透明辅助电极子层105b在所述显示面板上的正投影范围大于所述透光子区B在所述显示面板上的正投影范围，且小于或等于所述主电极子层105a在所述显示面板上的正投影范围。
本实施例中，由于在所述显示面板的所述透光子区B以外部分的所述阴极层105由至少一层所述主电极子层105a和至少一层所述透明辅助电极子层105b共同构成，而所述透光子区B以内部分的所述阴极层105仅由至少一层所述透明辅助电极子层105b单独构成。因此，借助于所述透明辅助电极子层105b，一方面，保证了所述显示面板的所述透光子区B以内部分依然保留发光性能，即以所述透光子区B以内的所述透明辅助电极子层105b作为阴极、与所述发光层104以及所述阳极层102形成可发光的所述像素单元。另一方面，所述透明辅助电极子层105b的高透光率也为外界光透过所述透光子区B以内部分进入屏下所述摄像头组件中的感光单元提供了可行性。
在一种实施例中，所述透明辅助电极子层105b在对应所述透光子区B的部分的膜层厚度大于或等于其在对应所述透光子区B外的所述正常显示子区A的部分的膜层厚度，具体的膜层厚度不做限制，只要可以保证其在所述透光子区B的优良的导电性即可。
在一种实施例中，所述透明辅助电极子层105b在对应所述透光子区B的部分的膜层厚度等于所述透光子区B外的所述正常显示子区A的所述阴极层105的膜层厚度，使得所述阴极层105在所述显示面板的各处膜层厚度保持均一，便于后续膜层制备，以及保证所述阴极层105各处的导电性能优异。
如图3所示，在另一种实施例中，所述像素单元在所述正常显示子区A的分布密度大于所述透光子区B内的分布密度。本实施例中，对应所述透光子区B的所述透明辅助电极子层105b进行图案化，所述透明辅助电极子层105b经图案化后形成对应所述像素单元的电极单元107，以及在所述透光子区B内形成对应相邻两所述像素单元之间的间隙位置且间隔设置的开口区C，所述显示面板在对应所述开口区C的位置形成有挖孔106。其中，所述挖孔106在不影响所述透光子区B内的所述像素单元显示的情况下，所述挖孔106可以贯穿所述显示面板上的有机膜层和无机膜层，所述有机膜层包括但不限于所述像素界定层，所述无机膜层包括但不限于钝化层、层间绝缘层、栅绝缘层等。
其中，在所述透明辅助电极子层105b图案化的制程中，同时还形成位于相邻两所述挖孔106之间用于电连接相邻两所述电极单元107的电极引线108，其中，所述电极单元107、所述电极引线108以及所述透光子区B外的所述透明辅助电极子层105b为一体成型。
在另一种实施例中，所述挖孔106可以为盲孔，即不需要对所述透光子区B的所述透明辅助电极子层105b进行图案化，但并不以此为限。
所述开口区C或所述挖孔106的形状不做限定，在不影响正常显示的情况下，所述开口区C或所述挖孔106尽可能的大一些。
采用此设计，不仅兼顾了所述透光子区B内的显示功能，而且通过减小所述透光子区B内所述像素单元的分布密度，且在相邻的所述像素单元之间的间隙处设置所述挖孔106，减小了外界光线透过所述透光子区B部分的损耗，使得外界光线的透过率进一步增大。
本申请还提供一种显示装置，如图4所示，所述显示装置包括如上所述的显示面板10和摄像头组件20；所述摄像头组件20对应所述透光子区B设置于所述显示面板10的背部，所述摄像头组件20用于拍摄所述显示面板10背离所述摄像头组件20一侧的物体。所述摄像头组件20包括感光单元201，所述感光单元201用于感应从外界透过所述显示面板10的所述透光子区B射向所述感光单元201的光线，从而实现所述摄像头组件20的正常拍摄。其中，为了不影响所述摄像头组件20的拍摄性能，所述透光子区B的范围为所述感光单元201的感光范围。
综上所述，本申请提供的显示面板和显示装置，以屏下摄像头的感光区域（透光子区）为界限，位于显示面板透光子区以外部分的阴极层采用至少一层主电极子层和至少一层透明辅助电极子层共同构成，而透光子区以内部分的阴极层仅由至少一层透明辅助电极子层单独构成。采用此设计，既提高了外界光在透光子区的透过率，同时也保证了透光子区的可显示性，从而使得屏下摄像头的拍摄性能以及显示面板的显示效果更优。
综上所述，虽然本申请已以优选实施例揭露如上，但上述优选实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (16)

  1. 一种显示面板，其包括：
    基板，所述基板包括：显示区和非显示区，所述显示区包括：正常显示子区和用于摄像头组件采光的透光子区；
    阳极层，设置在所述基板上；
    发光层，设置在所述阳极层上；
    阴极层，设置在所述发光层上，所述阴极层在所述正常显示子区包括层叠设置的至少一层主电极子层和至少一层透明辅助电极子层，所述阴极层在所述透光子区包括至少一层所述透明辅助电极子层。
  2. 根据权利要求1所述的显示面板，其中，在所述正常显示子区内，所述主电极子层与所述发光层接触，所述透明辅助电极子层位于所述主电极子层之上，其中，所述主电极子层在所述透光子区的边界处断开，所述透明辅助电极子层与所述透光子区内的所述发光层接触。
  3. 根据权利要求2所述的显示面板，其中，所述阳极层、所述发光层以及所述阴极层形成间隔分布的像素单元，其中，所述像素单元在所述正常显示子区的分布密度大于或等于所述透光子区内的分布密度。
  4. 根据权利要求3所述的显示面板，其中，所述透明辅助电极子层经图案化后在所述透光子区内对应相邻两所述像素单元之间的间隙位置形成有间隔设置的开口区，所述显示面板在对应所述开口区的位置形成有挖孔。
  5. 根据权利要求4所述的显示面板，其中，对应所述透光子区的所述透明辅助电极子层经图案化后形成对应所述像素单元的电极单元，以及位于相邻两所述挖孔之间用于电连接相邻两所述电极单元的电极引线，其中，所述电极单元、所述电极引线以及所述透光子区外的所述透明辅助电极子层为一体成型。
  6. 根据权利要求1所述的显示面板，其中，所述透明辅助电极子层的材料包括石墨烯、氧化铟锡、铝掺杂的氧化锌中的一种或一种以上，所述主电极子层的材料为半透明金属材料。
  7. 根据权利要求1所述的显示面板，其中，所述透明辅助电极子层在所述显示面板上的正投影范围大于所述透光子区在所述显示面板上的正投影范围，且小于或等于所述主电极子层在所述显示面板上的正投影范围。
  8. 一种显示装置，其包括：如权利要求1所述的显示面板、和摄像头组件；
    所述摄像头组件对应所述透光子区设置于所述显示面板的背部，所述摄像头组件用于拍摄所述显示面板背离所述摄像头组件一侧的物体。
  9. 根据权利要求8所述的显示装置，其中，所述摄像头组件包括感光单元，所述感光单元用于感应从外界透过所述显示面板的所述透光子区射向所述感光单元的光线，所述透光子区的范围为所述感光单元的感光范围。
  10. 一种显示面板，其包括：
    基板，所述基板包括：显示区和非显示区，所述显示区包括：正常显示子区和用于摄像头组件采光的透光子区；
    阳极层，设置在所述基板上；
    发光层，设置在所述阳极层上；
    阴极层，设置在所述发光层上，所述阴极层在所述正常显示子区包括层叠设置的至少一层主电极子层和至少一层透明辅助电极子层，所述阴极层在所述透光子区包括至少一层所述透明辅助电极子层；
    所述透明辅助电极子层在对应所述透光子区的部分的膜层厚度大于或等于其在对应所述正常显示子区的部分的膜层厚度。
  11. 根据权利要求10所述的显示面板，其中，在所述正常显示子区内，所述主电极子层与所述发光层接触，所述透明辅助电极子层位于所述主电极子层之上，其中，所述主电极子层在所述透光子区的边界处断开，所述透明辅助电极子层与所述透光子区内的所述发光层接触。
  12. 根据权利要求11所述的显示面板，其中，所述阳极层、所述发光层以及所述阴极层形成间隔分布的像素单元，其中，所述像素单元在所述正常显示子区的分布密度大于或等于所述透光子区内的分布密度。
  13. 根据权利要求12所述的显示面板，其中，所述透明辅助电极子层经图案化后在所述透光子区内对应相邻两所述像素单元之间的间隙位置形成有间隔设置的开口区，所述显示面板在对应所述开口区的位置形成有挖孔。
  14. 根据权利要求13所述的显示面板，其中，对应所述透光子区的所述透明辅助电极子层经图案化后形成对应所述像素单元的电极单元，以及位于相邻两所述挖孔之间用于电连接相邻两所述电极单元的电极引线，其中，所述电极单元、所述电极引线以及所述透光子区外的所述透明辅助电极子层为一体成型。
  15. 根据权利要求10所述的显示面板，其中，所述透明辅助电极子层的材料包括石墨烯、氧化铟锡、铝掺杂的氧化锌中的一种或一种以上，所述主电极子层的材料为半透明金属材料。
  16. 根据权利要求10所述的显示面板，其中，所述透明辅助电极子层在所述显示面板上的正投影范围大于所述透光子区在所述显示面板上的正投影范围，且小于或等于所述主电极子层在所述显示面板上的正投影范围。
PCT/CN2019/110039 2019-07-23 2019-10-09 一种显示面板和显示装置 WO2021012400A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4141949A4 (en) * 2021-02-22 2023-08-02 BOE Technology Group Co., Ltd. DISPLAYBOARD, DISPLAY DEVICE AND METHOD OF MAKING A DISPLAYBOARD

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017072678A1 (en) 2015-10-26 2017-05-04 Oti Lumionics Inc. Method for patterning a coating on a surface and device including a patterned coating
CN110785867B (zh) 2017-04-26 2023-05-02 Oti照明公司 用于图案化表面上覆层的方法和包括图案化覆层的装置
JP7264488B2 (ja) 2017-05-17 2023-04-25 オーティーアイ ルミオニクス インコーポレーテッド パターン化コーティングにわたって伝導性コーティングを選択的に堆積させるための方法および伝導性コーティングを含むデバイス
US11751415B2 (en) 2018-02-02 2023-09-05 Oti Lumionics Inc. Materials for forming a nucleation-inhibiting coating and devices incorporating same
JP7390739B2 (ja) 2019-03-07 2023-12-04 オーティーアイ ルミオニクス インコーポレーテッド 核生成抑制コーティングを形成するための材料およびそれを組み込んだデバイス
US11832473B2 (en) 2019-06-26 2023-11-28 Oti Lumionics Inc. Optoelectronic device including light transmissive regions, with light diffraction characteristics
KR20220046551A (ko) 2019-06-26 2022-04-14 오티아이 루미오닉스 인크. 광 회절 특성을 갖는 광 투과 영역을 포함하는 광전자 디바이스
KR20220045202A (ko) 2019-08-09 2022-04-12 오티아이 루미오닉스 인크. 보조 전극 및 파티션을 포함하는 광전자 디바이스
CN110783363B (zh) * 2019-10-31 2022-03-01 Oppo广东移动通信有限公司 显示装置及电子设备
CN110718580A (zh) * 2019-11-20 2020-01-21 Oppo广东移动通信有限公司 显示模组及电子设备
CN111293235B (zh) * 2020-02-17 2023-04-07 京东方科技集团股份有限公司 一种显示基板的制备方法、显示基板及显示装置
CN113345929B (zh) * 2020-02-18 2023-07-18 京东方科技集团股份有限公司 显示基板及其制备方法、显示装置
CN113327546B (zh) * 2020-02-28 2022-12-06 京东方科技集团股份有限公司 显示基板及其制作方法、显示装置
CN111627960A (zh) * 2020-05-18 2020-09-04 武汉华星光电半导体显示技术有限公司 一种增透膜层组件、增透膜层组件制程方法及显示装置
CN111755623B (zh) * 2020-06-17 2022-07-12 武汉华星光电半导体显示技术有限公司 用于屏下摄像头的显示面板及其制造方法
CN111668240B (zh) * 2020-06-23 2022-10-04 武汉华星光电半导体显示技术有限公司 Oled显示面板及其制备方法、oled显示装置
CN111755493B (zh) * 2020-06-28 2022-08-23 武汉华星光电半导体显示技术有限公司 屏下摄像头的oled显示面板及其制备方法及显示装置
US11985841B2 (en) 2020-12-07 2024-05-14 Oti Lumionics Inc. Patterning a conductive deposited layer using a nucleation inhibiting coating and an underlying metallic coating

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002229482A (ja) * 2001-01-30 2002-08-14 Semiconductor Energy Lab Co Ltd 発光装置
JP2010230797A (ja) * 2009-03-26 2010-10-14 Seiko Epson Corp 表示装置、および電子機器
CN108389879A (zh) * 2017-09-30 2018-08-10 云谷（固安）科技有限公司 显示屏以及电子设备
CN109545833A (zh) * 2018-11-30 2019-03-29 维沃移动通信有限公司 一种显示面板及终端
CN109801950A (zh) * 2019-01-31 2019-05-24 厦门天马微电子有限公司 显示面板、显示装置及显示面板的制作方法
CN209045560U (zh) * 2018-12-25 2019-06-28 陕西坤同半导体科技有限公司 电子设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160053001A (ko) * 2014-10-30 2016-05-13 삼성디스플레이 주식회사 투명 표시 기판, 투명 표시 장치 및 투명 표시 장치의 제조 방법
CN109065599B (zh) * 2018-08-20 2021-01-22 京东方科技集团股份有限公司 一种显示面板及其制备方法、以及显示装置
CN109461758B (zh) * 2018-09-21 2021-07-16 华为技术有限公司 显示屏的制备方法、显示屏和终端

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002229482A (ja) * 2001-01-30 2002-08-14 Semiconductor Energy Lab Co Ltd 発光装置
JP2010230797A (ja) * 2009-03-26 2010-10-14 Seiko Epson Corp 表示装置、および電子機器
CN108389879A (zh) * 2017-09-30 2018-08-10 云谷（固安）科技有限公司 显示屏以及电子设备
CN109545833A (zh) * 2018-11-30 2019-03-29 维沃移动通信有限公司 一种显示面板及终端
CN209045560U (zh) * 2018-12-25 2019-06-28 陕西坤同半导体科技有限公司 电子设备
CN109801950A (zh) * 2019-01-31 2019-05-24 厦门天马微电子有限公司 显示面板、显示装置及显示面板的制作方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4141949A4 (en) * 2021-02-22 2023-08-02 BOE Technology Group Co., Ltd. DISPLAYBOARD, DISPLAY DEVICE AND METHOD OF MAKING A DISPLAYBOARD

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