WO2021196371A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置 Download PDF

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Publication number
WO2021196371A1
WO2021196371A1 PCT/CN2020/092121 CN2020092121W WO2021196371A1 WO 2021196371 A1 WO2021196371 A1 WO 2021196371A1 CN 2020092121 W CN2020092121 W CN 2020092121W WO 2021196371 A1 WO2021196371 A1 WO 2021196371A1
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WO
WIPO (PCT)
Prior art keywords
layer
light
display panel
touch electrode
emitting
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PCT/CN2020/092121
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English (en)
French (fr)
Inventor
余文静
Original Assignee
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 US17/051,183 priority Critical patent/US20210305328A1/en
Publication of WO2021196371A1 publication Critical patent/WO2021196371A1/zh

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Classifications

    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens

Definitions

  • This application relates to the field of display technology, and in particular to a display panel and a display device.
  • AMOLED Active Matrix Organic Light Emitting Diode
  • touch panel touch Panel, TP for short
  • the external TP will not only increase the thickness of the display panel, but also increase the weight of the display device, but in order to still meet the needs of consumers, the direct in-cell touch (Direct On-Cell TP, DOT for short) technology came into being.
  • On-Cell TP technology is to directly deposit the TP film layer (that is, the touch electrode layer) on the thin film encapsulation layer. Such a design can not only avoid the problem of accurate alignment of the TP film layer, but also significantly reduce the thickness and weight of the display panel.
  • the TP film layer In the On-Cell TP technology, if the TP film layer is arranged directly above the AMOLED light-emitting unit, it will affect the light output rate of the display panel. In order to prevent the TP film layer from affecting the light output rate of the display panel, the TP film layer is usually arranged in the middle of adjacent light-emitting units. When the luminous efficiency of the luminescent material remains unchanged, if the brightness of the display panel is to be increased, the area of the light-emitting unit needs to be increased. In this way, the line width of the TP film needs to be reduced accordingly, which will increase the impedance of the TP film.
  • the purpose of the present application is to provide a display panel and a display device.
  • the display panel uses a new structure design of the touch electrode layer to effectively reduce the impedance of the touch electrode layer without affecting the light output of the display panel. Rate.
  • the present application provides a display panel, which includes: a substrate; an organic light-emitting layer disposed on the substrate, the organic light-emitting layer including a plurality of light-emitting units; an encapsulation layer disposed on the substrate On the organic light emitting layer; and a touch electrode layer disposed on the encapsulation layer, the touch electrode layer includes a plurality of touch electrode units, each of the touch electrode units and each of the light emitting Each of the touch electrode units includes a hollow area, the shape of the hollow area is the same as the shape of the light-emitting unit, and the orthographic projection boundary of the hollow area on the surface where the organic light-emitting layer is located and the The boundaries of the light-emitting units do not intersect; the orthographic projection of the hollow area on the surface where the organic light-emitting layer is located outside the light-emitting unit; the non-hollow-out areas in adjacent touch electrode units are connected to each other.
  • the hollow area is any one of a circle, an ellipse, and a polygon.
  • the distance between the orthographic projection boundary of the hollow area on the surface where the organic light-emitting layer is located and the boundary of the light-emitting unit is set according to the material of the light-emitting unit of.
  • the material of the touch electrode layer is an opaque metal.
  • the metal is any one of aluminum, silver, and copper.
  • the touch electrode layer is made of a multilayer composite metal.
  • the composite metal is a titanium aluminum titanium three-layer composite metal.
  • the encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer stacked from bottom to top.
  • the present application provides a display panel, which includes: a substrate; an organic light-emitting layer provided on the substrate, the organic light-emitting layer including a plurality of light-emitting units; an encapsulation layer provided with On the organic light-emitting layer; and a touch electrode layer disposed on the encapsulation layer, the touch electrode layer includes a plurality of touch electrode units, each of the touch electrode units and each of the Corresponding to the light-emitting unit; each of the touch electrode units includes a hollowed-out area, the shape of the hollowed-out area is the same as the shape of the light-emitting unit, the orthographic boundary of the hollowed-out area on the surface where the organic light-emitting layer is and The boundaries of the light-emitting units do not intersect.
  • the orthographic projection of the hollow area on the surface where the organic light-emitting layer is located is outside the light-emitting unit.
  • the hollow area is any one of a circle, an ellipse, and a polygon.
  • non-hollowed areas in adjacent touch electrode units are connected to each other.
  • the distance between the orthographic projection boundary of the hollow area on the surface where the organic light-emitting layer is located and the boundary of the light-emitting unit is set according to the material of the light-emitting unit of.
  • the material of the touch electrode layer is an opaque metal.
  • the metal is any one of aluminum, silver, and copper.
  • the touch electrode layer is made of a multilayer composite metal, preferably a titanium aluminum titanium three-layer composite metal.
  • the encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer stacked from bottom to top.
  • the present application also provides a display device, which includes the above-mentioned display panel.
  • the advantage of the present application is that the display panel of the present application uses a new structure design of the touch electrode layer to effectively reduce the impedance of the touch electrode layer without affecting the light output rate of the display panel.
  • FIG. 1 is a schematic diagram of the structure of a display panel in an embodiment of the application.
  • FIG. 2 is a schematic diagram of the relationship between the hollow area and the light-emitting unit in the embodiment of the application.
  • FIG. 3 is a schematic diagram of the relationship between the touch electrode unit and the light-emitting unit in the example described in this application.
  • FIG. 4 is a schematic diagram of a display device in an embodiment of the application.
  • the embodiment of the present application provides a display panel.
  • the detailed description will be given below.
  • FIG. 1 is a schematic diagram of the structure of a display panel in an embodiment of the application.
  • FIG. 2 is a schematic diagram of the relationship between the hollow area and the light-emitting unit in the embodiment of the application.
  • FIG. 3 is a schematic diagram of the relationship between the touch electrode unit and the light-emitting unit in the example described in this application.
  • the display panel 100 shown in the present application includes a substrate 110, an organic light-emitting layer 122, an encapsulation layer 130 and a touch electrode layer 140 which are stacked.
  • the substrate 110 may be a touch substrate, or may be an array substrate or a counter substrate with a touch function, or may be a display substrate with a touch function.
  • the touch substrate can also be a flexible substrate.
  • the substrate 110 may include a display structure layer, and the display structure layer may further include a driving array layer 121 (or TFT layer) and a light emitting structure layer (here, organic light emitting layer). Layer 122, namely the OLED layer).
  • the organic light-emitting layer 122 may include a pixel defining layer (not shown) (Pixel Define Layer, PDL) and the sub-pixel area defined by the pixel defining layer.
  • PDL Pixel Define Layer
  • Each sub-pixel area from the side close to the driving array layer 121 to the side far away from the driving array layer 121 may include an anode layer, a light-emitting layer, and a cathode layer (not shown in the figure) in sequence.
  • the anode is a three-layer structure of ITO (Indium Tin Oxide)/Ag/ITO with high work function and high reflectivity
  • the cathode is a metal Mg/Ag alloy with low work function.
  • the encapsulation layer 130 is disposed on the organic light emitting layer 122.
  • the encapsulation layer 130 may be a single-layer structure or a composite structure of at least two layers.
  • the material of the encapsulation layer 130 may include insulating materials such as silicon nitride, silicon oxide, silicon oxynitride, and polymer resin.
  • the encapsulation layer 130 may include a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer.
  • the materials of the first inorganic encapsulation layer and the second inorganic encapsulation layer may include inorganic materials, such as silicon nitride, silicon oxide, silicon oxynitride, etc.
  • the inorganic materials have high density and can prevent the intrusion of water, oxygen, and the like.
  • the material of the organic encapsulation layer can be a polymer material containing a desiccant or a polymer material that can block water vapor, such as polymer resin to planarize the surface of the display substrate, and can relieve the first inorganic encapsulation layer and the first inorganic encapsulation layer.
  • the stress of the inorganic encapsulation layer may also include water-absorbing materials such as desiccant to absorb substances such as water and oxygen that have penetrated into the interior.
  • the touch electrode layer 140 is disposed on the encapsulation layer 130, and the touch electrode layer 140 is patterned to ensure that the light emitted by the organic light emitting layer 122 can normally pass through.
  • the touch electrode layer 140 may be an opaque electrode or a transparent electrode.
  • the material of the opaque electrode is an opaque metal, such as silver, aluminum, and copper.
  • the touch electrode layer 140 can also be made of a multilayer composite metal, preferably a titanium-aluminum-titanium three-layer composite metal, which can prevent metal oxidation and enhance the bending resistance of the traces of the touch electrode layer performance.
  • a multilayer composite metal preferably a titanium-aluminum-titanium three-layer composite metal, which can prevent metal oxidation and enhance the bending resistance of the traces of the touch electrode layer performance.
  • titanium-aluminum-titanium three-layer composite metal and molybdenum-aluminum-molybdenum can also be used.
  • the organic light emitting layer 122 includes a plurality of sub-pixels 1221 arranged at intervals.
  • the sub-pixels 1221 are RGB (red, green and blue) sub-pixels.
  • the organic light-emitting layer 122 includes a plurality of light-emitting units 1222, and each light-emitting unit 1222 corresponds to each of the sub-pixels 1221, the light-emitting units 1222 can also be regarded as being arranged at intervals.
  • the touch electrode layer 140 includes a plurality of touch electrode units 141, and each of the touch electrode units 141 corresponds to each of the light-emitting units 1222.
  • the touch electrode layer 140 is usually arranged in the middle of the adjacent light emitting unit 1222, that is, the touch electrode unit 1222 is located on the organic light emitting layer 122.
  • the orthographic projection on the surface is located between each adjacent light-emitting unit 1222.
  • the trace width of the touch electrode layer 140 is set to be narrow, there may be problems in the process that cannot be implemented specifically, and according to the resistance definition formula, it can be known that when the cross-sectional area of the resistor (here, the trace width) becomes larger The smaller the resistance, the greater the resistance value of the resistor. Therefore, such a configuration will increase the impedance of the touch electrode layer 140.
  • the trace width of the touch electrode layer 140 is set to be wider, the light and brightness of the light emitting unit 1222 will be affected, that is, the light output rate of the display panel 10 will be affected.
  • each touch electrode unit 141 includes a hollow area 151.
  • the boundary of the orthographic projection of the hollow area 151 on the surface where the organic light-emitting layer 122 is located does not intersect the boundary of the light-emitting unit 1222.
  • the shape of the hollow area 151 can be any one of a circle, an ellipse and a polygon.
  • the orthographic projection of the hollow area 151 on the surface where the organic light-emitting layer 122 is located is outside the light-emitting unit 1222. That is, the orthographic projection area of the hollow area 151 on the surface where the organic light-emitting layer 122 is located is larger than that of the light-emitting unit 1222, which can ensure that the touch electrode unit 141 will not block the light-emitting unit 1222.
  • the distance D should not be set too narrow or too wide. If the distance D is too narrow, it may still affect the light and brightness of the light-emitting unit 1222 to a certain extent. If the distance D is too wide, although the light and brightness of the light-emitting unit 1222 will not be affected, the non-hollowed area 152 in the touch electrode unit 141 (which is surrounded by the hollowed area 151 will be reduced to a certain extent). Outside), the impedance of the touch electrode unit 141 is further affected. Therefore, in order to ensure the reasonable setting of the distance D, it is necessary to design the shape of the hollow area 151 and the shape of the light emitting unit 1222 to be the same.
  • the size of the distance D between the orthographic boundary of the hollow area 151 on the surface where the organic light-emitting layer 122 is located and the boundary of the light-emitting unit 1222 is set according to the material of the light-emitting unit 1222.
  • the non-hollowed areas 152 in the adjacent touch electrode units 141 are connected to each other.
  • the non-hollowed area 152 that is, the trace width of the touch electrode
  • the touch electrode layer 140 is made of metal, the impedance of the touch electrode layer 140 can be further reduced to achieve the purpose of energy saving.
  • the present application also provides a display device 1, and the display device 1 includes the above-mentioned display panel 10.
  • the specific structure of the display panel 10 is as described above, and will not be repeated here.
  • the display device 1 can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, and the like.
  • the advantage of the present application is that the display panel 10 of the present application uses a new wiring design of the touch electrode layer to effectively reduce the impedance of the touch electrode layer without affecting the light output rate of the display panel 10.

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Abstract

本申请提供了一种显示面板及显示装置，所述显示面板通过使用新的触控电极层的结构设计，以有效降低触控电极层的阻抗，且不影响所述显示面板的出光率。

Description

显示面板及显示装置 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及显示装置。
 背景技术
时至今日，主动矩阵有机发光二极管（AMOLED）显示面板越来越受到消费者的推崇。其中，触控面板（touch panel，简称TP）是AMOLED显示面板的重要组成部分。由于外挂式TP不仅会增加显示面板的厚度，而且增加显示装置的重量，但为了仍需满足消费者的需求，于是直接内嵌式触控（Direct On-Cell TP，简称DOT）技术应运而生。On-Cell TP技术，顾名思义，就是将TP膜层（即触控电极层）直接沉积在薄膜封装层上。如此设计，不仅可以避免TP膜层精准对位差的问题，而且能够显著地降低显示面板的厚度和重量。
在On-Cell TP技术中，若TP膜层设置在AMOLED发光单元的正上方，则会影响到显示面板的出光率。为了避免TP膜层影响到显示面板的出光率，于是TP膜层通常设置在相邻发光单元的中间。在发光材料的发光效率不变的情况下，若要提高显示面板的亮度，则需要增加发光单元的面积。如此，则TP膜层的线宽相应需要减小，从而会增大TP膜层的阻抗。
有鉴于此，如何实现减小TP膜层的阻抗且不影响显示面板的出光率成为了相关研究者和技术人员重点研究课题。
 技术问题
本申请的目的在于，提供一种显示面板及显示装置，所述显示面板通过使用新的触控电极层的结构设计，以有效降低触控电极层的阻抗，且不影响所述显示面板的出光率。
 技术解决方案
根据本申请的一方面，本申请提供一种显示面板，其包括：一基板；一有机发光层，设置在所述基板上，所述有机发光层包括多个发光单元；一封装层，设置在所述有机发光层上；以及一触控电极层，设置在所述封装层上，所述触控电极层包括多个触控电极单元，每一所述触控电极单元与每一所述发光单元对应；每一所述触控电极单元包括一镂空区域，所述镂空区域的形状与所述发光单元的形状相同，所述镂空区域在所述有机发光层所在面上的正投影边界与所述发光单元的边界不相交；所述镂空区域在所述有机发光层所在面上的正投影位于所述发光单元之外；相邻的触控电极单元中的非镂空区域彼此连接。
在本申请的至少一实施例中，所述镂空区域为圆形、椭圆形及多边形中的任意一种。
在本申请的至少一实施例中，所述镂空区域在所述有机发光层所在面上的正投影边界与所述发光单元的边界之间的间距大小是根据所述发光单元的材料而设定的。
在本申请的至少一实施例中，所述触控电极层的材料为不透明金属。
在本申请的至少一实施例中，所述金属为铝、银、铜中任意一种。
在本申请的至少一实施例中，所述触控电极层为多层复合金属制成。
在本申请的至少一实施例中，所述复合金属为钛铝钛三层复合金属。
在本申请的至少一实施例中，所述封装层包括由下至上层叠设置的第一无机封装层、有机封装层及第二无机封装层。
根据本申请的另一方面，本申请提供一种显示面板，其包括：一基板；一有机发光层，设置在所述基板上，所述有机发光层包括多个发光单元；一封装层，设置在所述有机发光层上；以及一触控电极层，设置在所述封装层上，所述触控电极层包括多个触控电极单元，每一所述触控电极单元与每一所述发光单元对应；每一所述触控电极单元包括一镂空区域，所述镂空区域的形状与所述发光单元的形状相同，所述镂空区域在所述有机发光层所在面上的正投影边界与所述发光单元的边界不相交。
在上述技术方案的基础上，可以进行以下的改进。
在本申请的至少一实施例中，所述镂空区域在所述有机发光层所在面上的正投影位于所述发光单元之外。
在本申请的至少一实施例中，所述镂空区域为圆形、椭圆形及多边形中的任意一种。
在本申请的至少一实施例中，相邻的触控电极单元中的非镂空区域彼此连接。
在本申请的至少一实施例中，所述镂空区域在所述有机发光层所在面上的正投影边界与所述发光单元的边界之间的间距大小是根据所述发光单元的材料而设定的。
在本申请的至少一实施例中，所述触控电极层的材料为不透明金属。
在本申请的至少一实施例中，所述金属为铝、银、铜中任意一种。
在本申请的至少一实施例中，所述触控电极层为多层复合金属制成，优选为钛铝钛三层复合金属。
在本申请的至少一实施例中，所述封装层包括由下至上层叠设置的第一无机封装层、有机封装层及第二无机封装层。
根据本申请的又一方面，本申请还提供一种显示装置，所述显示装置包括上述显示面板。
 有益效果
本申请的优点在于，本申请所述显示面板通过使用新的触控电极层的结构设计，以有效降低触控电极层的阻抗，且不影响所述显示面板的出光率。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，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为本申请一实施例中的显示面板的结构示意图。
图2为本申请所述实施例中的镂空区域与发光单元的关系示意图。
图3为本申请所述实例中的触控电极单元与发光单元的关系示意图。
图4为本申请一实施例中的显示装置的示意图。
 本发明的实施方式
本申请提供一种实体键盘输入系统、键盘输入方法及存储介质，为使本申请的目的、技术方案及效果更加清楚、明确，以下参照附图并举实施例对本申请进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书以及上述附图中的术语“第一”、“第二”、“第三”等（如果存在）是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应当理解，这样描述的对象在适当情况下可以互换。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含。
在本专利文档中，下文论述的附图以及用来描述本申请公开的原理的各实施例仅用于说明，而不应解释为限制本申请公开的范围。所属领域的技术人员将理解，本申请的原理可在任何适当布置的系统中实施。将详细说明示例性实施方式，在附图中示出了这些实施方式的实例。此外，将参考附图详细描述根据示例性实施例的终端。附图中的相同附图标号指代相同的元件。
本申请说明书中使用的术语仅用来描述特定实施方式，而并不意图显示本申请的概念。除非上下文中有明确不同的意义，否则，以单数形式使用的表达涵盖复数形式的表达。在本申请说明书中，应理解，诸如“包括”、“具有”以及“含有”等术语意图说明存在本申请说明书中揭示的特征、数字、步骤、动作或其组合的可能性，而并不意图排除可存在或可添加一个或多个其他特征、数字、步骤、动作或其组合的可能性。附图中的相同参考标号指代相同部分。
本申请实施例提供一种显示面板。以下将分别进行详细说明。
为了便于理解，本申请将会结合附图进行说明。请参考图1至图3。图1为本申请一实施例中的显示面板的结构示意图。图2为本申请所述实施例中的镂空区域与发光单元的关系示意图。图3为本申请所述实例中的触控电极单元与发光单元的关系示意图。
如图1所示，本申请所示的显示面板100包括层叠设置的基板110、有机发光层122、封装层130以及触控电极层140。
所述基板110可以是触控基板，或者可以是具有触控功能的阵列基板或对置基板，或者可以是具有触控功能的显示基板。当然，所述触控基板也可以为进一步为柔性基板。
在本申请至少一实施例所提供的基板中，所述基板110可以包括显示结构层，所述显示结构层进一步包括驱动阵列层121（或称TFT层）和发光结构层（此处为有机发光层122，即OLED层）。
所述有机发光层122可以包括像素界定层(图中未示)（Pixel Define Layer, PDL）及由像素界定层界定出的子像素区域。每个子像素区域内从靠近驱动阵列层121的一侧至远离驱动阵列层121的一侧可以依次包括：阳极层、发光层、及阴极层(图中未示)。在具体的实施方式中，阳极为高功函高反射率的ITO(氧化铟锡)/Ag/ITO三层结构，阴极为低功函的金属Mg/Ag合金。
所述封装层130设置在所述有机发光层122上。所述封装层130可以为单层结构，也可以为至少两层的复合结构。例如，封装层130的材料可以包括氮化硅、氧化硅、氮氧化硅、高分子树脂等绝缘材料。又例如，封装层130可以包括第一无机封装层、有机封装层和第二无机封装层。第一无机封装层和第二无机封装层的材料可以包括无机材料，例如氮化硅、氧化硅、氮氧化硅等，无机材料的致密性高，可以防止水、氧等的侵入。有机封装层的材料可以为含有干燥剂的高分子材料或可阻挡水汽的高分子材料等，例如高分子树脂等以对显示基板的表面进行平坦化处理，并且可以缓解第一无机封装层和第二无机封装层的应力，还可以包括干燥剂等吸水性材料以吸收侵入内部的水、氧等物质。
所述触控电极层140设置在所述封装层130上，所述触控电极层140为图案化，以保证所述有机发光层122所发射出的光能够正常透过。所述触控电极层140可以采用不透明电极或透明电极。不透明电极的材料为不透明金属，例如银、铝、铜等。
所述触控电极层140也可以为多层复合金属制成，优选为钛-铝-钛三层复合金属，这样既能防止金属氧化，又能增强触控电极层的走线的耐弯折性能。当然，不仅限于钛-铝-钛三层复合金属，也可以采用钼-铝-钼。
在本实施例中，所述有机发光层122包括多个间隔设置的子像素1221。其中，子像素1221为RGB（红绿蓝）子像素。
由于所述有机发光层122包括多个发光单元1222，每一所述发光单元1222与每一所述子像素1221相对应，因此，所述发光单元1222也可以视为间隔设置。
在本实施例中，所述触控电极层140包括多个触控电极单元141，每一所述触控电极单元141与每一所述发光单元1222对应。
为了避免触控电极层140影响到显示面板10的出光率，于是触控电极层140通常设置在相邻发光单元1222的中间，亦即所述触控电极单元1222在所述有机发光层122所在面上的正投影位于相邻每一所述发光单元1222之间。
若将触控电极层140的走线宽度设置为较窄，那么在工艺上可能会存在无法具体实施的问题，而且根据电阻定义公式可知，当电阻的截面积（此处为走线宽度）越小，电阻的阻值就越大。因此，如此设置，会增大触控电极层140的阻抗。
若将触控电极层140的走线宽度设置为较宽，则会影响到发光单元1222的发光光线与亮度，即影响到显示面板10的出光率。
因此，在本申请中，通过使用新的触控电极层140的结构设计，不仅保证显示面板的出光率，而且还能够有效降低触控电极层140的阻抗。
如图3所示，具体设计如下：每一所述触控电极单元141包括一镂空区域151。所述镂空区域151在所述有机发光层122所在面上的正投影边界与所述发光单元1222的边界不相交。
所述镂空区域151的形状可以为圆形、椭圆形及多边形中的任意一种。
进一步，所述镂空区域151在所述有机发光层122所在面上的正投影位于所述发光单元1222之外。亦即，所述镂空区域151在所述有机发光层122所在面上的正投影面积大于所述发光单元1222，这样能够确保所述触控电极单元141不会遮挡到所述发光单元1222。
由于所述镂空区域151在所述有机发光层122所在面上的正投影位于所述发光单元1222之外，因此，所述镂空区域151在所述有机发光层122所在面上的正投影边界与所述发光单元1222的边界之间存在一定的间距D，如图2所示。
该间距D不宜设置得过窄或过宽。若间距D为过窄，则仍然有可能在一定程度上影响到所述发光单元1222的发光光线与亮度。若间距D为过宽，虽然不会影响到所述发光单元1222的发光光线与亮度，但是会在一定程度上减少所述触控电极单元141中的非镂空区域152（其包围在镂空区域151之外）的面积，进而会影响到所述触控电极单元141的阻抗。因此，为了保证该间距D的设置合理性，需要将所述镂空区域151的形状与所述发光单元1222的形状设计成相同。
另外，所述镂空区域151在所述有机发光层122所在面上的正投影边界与所述发光单元1222的边界之间的间距D大小是根据所述发光单元1222的材料而设定的。
在本申请实施例中，优选的，相邻的触控电极单元141中的非镂空区域152彼此连接。这样，能够使得触控电极单元141中的非镂空区域152（即触控电极的走线宽度）最大化。由于触控电极层140为金属制成，因此能够进一步降低触控电极层140的阻抗，以达到节能的目的。
另外，如图4所示，本申请还提供一种显示装置1，所述显示装置1包括上述显示面板10。其中显示面板10的具体结构如上文所述，在此不再赘述。该显示装置1可以为：手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
本申请的优点在于，本申请所述显示面板10通过使用新的触控电极层的走线设计，以有效降低触控电极层的阻抗，且不影响所述显示面板10的出光率。
以上所述仅是本申请的优选实施方式，应当指出，对于本技术领域的普通技术人员，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (18)

  1. 一种显示面板，其包括：
    一基板；
    一有机发光层，设置在所述基板上，所述有机发光层包括多个发光单元；
    一封装层，设置在所述有机发光层上；以及
    一触控电极层，设置在所述封装层上，所述触控电极层包括多个触控电极单元，每一所述触控电极单元与每一所述发光单元对应；每一所述触控电极单元包括一镂空区域，所述镂空区域的形状与所述发光单元的形状相同，所述镂空区域在所述有机发光层所在面上的正投影边界与所述发光单元的边界不相交；所述镂空区域在所述有机发光层所在面上的正投影位于所述发光单元之外；相邻的触控电极单元中的非镂空区域彼此连接。
  2. 根据权利要求1所述的显示面板，其中所述镂空区域为圆形、椭圆形及多边形中的任意一种。
  3. 根据权利要求1所述的显示面板，其中所述镂空区域在所述有机发光层所在面上的正投影边界与所述发光单元的边界之间的间距大小是根据所述发光单元的材料而设定的。
  4. 根据权利要求1所述的显示面板，其中所述触控电极层的材料为不透明金属。
  5. 根据权利要求4所述的显示面板，其中所述金属为铝、银、铜中任意一种。
  6. 根据权利要求4所述的显示面板，其中所述触控电极层为多层复合金属制成。
  7. 根据权利要求6所述的显示面板，其中所述复合金属为钛铝钛三层复合金属。
  8. 根据权利要求1所述的显示面板，其中所述封装层包括由下至上层叠设置的第一无机封装层、有机封装层及第二无机封装层。
  9. 一种显示面板，其包括：
    一基板；
    一有机发光层，设置在所述基板上，所述有机发光层包括多个发光单元；
    一封装层，设置在所述有机发光层上；以及
    一触控电极层，设置在所述封装层上，所述触控电极层包括多个触控电极单元，每一所述触控电极单元与每一所述发光单元对应；每一所述触控电极单元包括一镂空区域，所述镂空区域的形状与所述发光单元的形状相同，所述镂空区域在所述有机发光层所在面上的正投影边界与所述发光单元的边界不相交。
  10. 根据权利要求9所述的显示面板，其中所述镂空区域在所述有机发光层所在面上的正投影位于所述发光单元之外。
  11. 根据权利要求9所述的显示面板，其中所述镂空区域为圆形、椭圆形及多边形中的任意一种。
  12. 根据权利要求9所述的显示面板，其中相邻的触控电极单元中的非镂空区域彼此连接。
  13. 根据权利要求9所述的显示面板，其中所述镂空区域在所述有机发光层所在面上的正投影边界与所述发光单元的边界之间的间距大小是根据所述发光单元的材料而设定的。
  14. 根据权利要求9所述的显示面板，其中所述触控电极层的材料为不透明金属。
  15. 根据权利要求14所述的显示面板，其中所述金属为铝、银、铜中任意一种。
  16. 根据权利要求14所述的显示面板，其中所述触控电极层为多层复合金属制成。
  17. 根据权利要求9所述的显示面板，其中所述封装层包括由下至上层叠设置的第一无机封装层、有机封装层及第二无机封装层。
  18. 一种显示装置，其中所述显示装置包括权利要求9所述的显示面板。
PCT/CN2020/092121 2020-03-30 2020-05-25 显示面板及显示装置 WO2021196371A1 (zh)

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