WO2021027081A1 - 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
WO2021027081A1
WO2021027081A1 PCT/CN2019/114273 CN2019114273W WO2021027081A1 WO 2021027081 A1 WO2021027081 A1 WO 2021027081A1 CN 2019114273 W CN2019114273 W CN 2019114273W WO 2021027081 A1 WO2021027081 A1 WO 2021027081A1
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WO
WIPO (PCT)
Prior art keywords
layer
electrode
display panel
cathode
electrode group
Prior art date
Application number
PCT/CN2019/114273
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English (en)
French (fr)
Inventor
夏存军
Original Assignee
武汉华星光电半导体显示技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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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 US16/622,815 priority Critical patent/US10996781B2/en
Publication of WO2021027081A1 publication Critical patent/WO2021027081A1/zh

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Classifications

    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/80Constructional details
    • H10K50/805Electrodes
    • H10K50/81Anodes
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/80Constructional details
    • H10K50/805Electrodes
    • H10K50/82Cathodes
    • 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
    • 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
    • H10K59/40OLEDs integrated with touch screens
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00Manufacture or treatment specially adapted for the organic devices covered by this subclass

Definitions

  • This application relates to the display field, and in particular to a display panel and a display device.
  • touch technology As an important indicator of intelligence, touch technology has become more widely used. After rapid development, touch technology can be divided into piezoresistive type, optical type, capacitive type, etc. according to the touch principle. Among them, capacitive touch technology has been developed for many generations and is most widely used. Capacitive touch technology can be roughly divided into add-on touch (Add-on Touch), On-cell Touch, and In-cell Touch.
  • Add-on Touch add-on touch
  • On-cell Touch On-cell Touch
  • In-cell Touch In-cell Touch
  • the in-cell touch technology reduces the thickness of the OLED display device, but the manufacturing process is more complicated, which increases the process difficulty and cost, and the preparation of the touch layer on the thin film packaging layer increases the risk of packaging failure.
  • the present application provides a display panel and a display device to solve the technical problem of complicated manufacturing process of the existing in-cell touch technology.
  • the application provides a display panel, which includes a substrate, a touch layer on the substrate, the touch layer includes a first electrode layer, a pixel definition layer on the first electrode layer, and The second electrode layer on the pixel definition layer;
  • the first electrode layer includes at least one first electrode group arranged along a first direction;
  • the second electrode layer includes at least one second electrode group arranged along a second direction;
  • the pixel definition layer covers the first electrode group, and the first electrode group and the second electrode group are arranged perpendicularly.
  • the display panel further includes a thin film transistor layer on the substrate, and a light emitting device layer on the thin film transistor layer;
  • the light emitting device layer and the touch control layer are arranged in the same layer;
  • the light emitting device layer includes an anode layer, a light emitting layer on the anode layer, and a cathode layer on the light emitting layer;
  • the anode layer includes at least one anode arranged along the first direction;
  • the cathode layer includes at least one cathode arranged along the second direction;
  • the anode and the first electrode group are separated and insulated from each other;
  • the cathode and the second electrode group are separated and insulated from each other.
  • At least one first electrode group is provided between two adjacent anodes;
  • At least one second electrode group is arranged between two adjacent cathodes.
  • the first electrode layer and the anode layer are arranged in the same layer.
  • the first electrode layer and the anode layer are arranged in different layers;
  • the anode layer is located on and in contact with the thin film transistor layer, and the first electrode layer is located in the pixel defining layer.
  • the second electrode layer and the cathode layer are formed in the same photomask process.
  • the display panel further includes an isolation layer on the second electrode layer;
  • the cathode layer includes a first cathode layer and a second cathode layer;
  • the first cathode layer is located on the insulating layer
  • the second cathode layer is located on the light-emitting layer
  • the cross section of the isolation layer is an inverted trapezoid.
  • the display panel further includes a thin film packaging layer on the light emitting device layer;
  • the second electrode layer is located in the thin film packaging layer.
  • the display panel further includes a light shielding layer located between the substrate and the thin film transistor layer;
  • the first electrode layer and the light shielding layer are provided in the same layer.
  • the display panel further includes a second touch lead layer
  • the second touch lead layer includes at least one second touch lead, and the second touch lead is located at the edge of the display panel;
  • a second touch lead is electrically connected to a second electrode group
  • the second touch control lead layer and the light shielding layer are provided in the same layer.
  • the application also proposes a display device, which includes a display panel
  • the display panel includes a substrate, a touch layer on the substrate, and the touch layer includes a first electrode layer, a pixel definition layer on the first electrode layer, and a pixel definition layer On the second electrode layer;
  • the first electrode layer includes at least one first electrode group arranged along a first direction;
  • the second electrode layer includes at least one second electrode group arranged along a second direction;
  • the pixel definition layer covers the first electrode group, and the first electrode group and the second electrode group are arranged perpendicularly.
  • the display panel further includes a thin film transistor layer on the substrate, and a light emitting device layer on the thin film transistor layer;
  • the light emitting device layer and the touch control layer are arranged in the same layer;
  • the light emitting device layer includes an anode layer, a light emitting layer on the anode layer, and a cathode layer on the light emitting layer;
  • the anode layer includes at least one anode arranged along the first direction;
  • the cathode layer includes at least one cathode arranged along the second direction;
  • the anode and the first electrode group are separated and insulated from each other;
  • the cathode and the second electrode group are separated and insulated from each other.
  • At least one first electrode group is provided between two adjacent anodes
  • At least one second electrode group is arranged between two adjacent cathodes.
  • the first electrode layer and the anode layer are arranged in the same layer.
  • the first electrode layer and the anode layer are arranged in different layers;
  • the anode layer is located on and in contact with the thin film transistor layer, and the first electrode layer is located in the pixel defining layer.
  • the second electrode layer and the cathode layer are formed in the same photomask process.
  • the display panel further includes an isolation layer on the second electrode layer;
  • the cathode layer includes a first cathode layer and a second cathode layer;
  • the first cathode layer is located on the insulating layer
  • the second cathode layer is located on the light-emitting layer
  • the cross section of the isolation layer is an inverted trapezoid.
  • the display panel further includes a thin film packaging layer on the light emitting device layer;
  • the second electrode layer is located in the thin film packaging layer.
  • the display panel further includes a light shielding layer between the substrate and the thin film transistor layer;
  • the first electrode layer and the light shielding layer are provided in the same layer.
  • the display panel further includes a second touch lead layer
  • the second touch lead layer includes at least one second touch lead, and the second touch lead is located at the edge of the display panel;
  • a second touch lead is electrically connected to a second electrode group
  • the second touch control lead layer and the light shielding layer are provided in the same layer.
  • the present application combines the touch layer and the light-emitting device layer by arranging the sensing electrode layer and the anode layer in the touch layer in the same layer, and the driving electrode layer and the cathode layer in the same layer, thereby combining the touch layer and the light-emitting device layer, reducing the thickness of the display panel and simplifying the production Process of touch layer.
  • FIG. 1 is the first top view structure diagram of the display panel of this application.
  • Figure 2 is an enlarged view of area M in Figure 1;
  • 3 is a top view of the structure of the anode layer in the display panel of this application.
  • FIG. 4 is a top view of the structure of the cathode layer in the display panel of this application.
  • FIG. 5 is a cross-sectional view of the display panel shown in FIG. 1 along A-A;
  • Fig. 6 is a first cross-sectional view of the display panel shown in Fig. 1 along B-B;
  • Fig. 7 is a first cross-sectional view of the display panel shown in Fig. 1 along C-C;
  • FIG. 8 is the first top structural view of the display panel of this application.
  • Fig. 9 is a second cross-sectional view of the display panel shown in Fig. 1 along C-C;
  • Fig. 10 is a third cross-sectional view of the display panel shown in Fig. 1 along C-C;
  • Fig. 11 is a second cross-sectional view of the display panel shown in Fig. 1 along B-B;
  • Fig. 12 is a third cross-sectional view of the display panel shown in Fig. 1 taken along B-B.
  • the present application proposes a display panel based on the above technical problems.
  • the display panel 100 includes a substrate 10, a touch layer 20 located on the substrate 10, the touch layer 20 includes a first electrode layer 21, located on the first electrode The pixel definition layer 30 on the layer 21 and the second electrode layer 22 on the pixel definition layer 30.
  • the first electrode layer 21 includes at least one first electrode group 210 arranged along a first direction X.
  • the second electrode layer 22 includes at least one second electrode group 220 arranged along the second direction Y.
  • the first electrode group 210 and the second electrode group 220 are alternately arranged horizontally and vertically in the first direction X and the second direction Y.
  • any one of the first electrode groups 210 includes at least one first electrode 211 arranged along the second direction Y, and two adjacent first electrodes 211 are electrically connected.
  • Any one of the second electrode groups 220 includes at least one second electrode 221 arranged along the first direction X, and two adjacent second electrodes 221 are electrically connected.
  • the first direction X may be a direction parallel to the long side of the display panel 100
  • the second direction Y may be a direction parallel to the short side of the display panel 100.
  • the pixel definition layer 30 covers the first electrode group 210, and the first electrode group 210 and the second electrode group 220 are arranged perpendicularly.
  • the first electrode layer 21 and the second electrode layer 22 in the touch layer 20 are arranged on the upper and lower sides of the pixel definition layer 30 to integrate the touch layer 20 into the light emitting device layer 50. And, when the anode layer 51 and the cathode layer 53 in the light-emitting device layer 50 are fabricated, the first electrode layer 21 and the second electrode layer 22 can be prepared simultaneously, which simplifies the in-cell touch technology process The steps and the thickness of the display panel 100 are reduced.
  • the display panel 100 may further include a thin film transistor layer 40 on the substrate 10.
  • the thin film transistor layer 40 may include at least one thin film transistor.
  • the thin film transistor may be of an etch barrier type, a back channel etch type, or a top gate thin film transistor type, which is not specifically limited.
  • the thin film transistor of the top gate thin film transistor type may include a buffer layer, an active layer, a gate insulating layer, a gate layer, an interlayer dielectric layer, a source and drain layer, and a flat layer.
  • the substrate 10 may be one of a glass substrate, a quartz substrate, and a resin substrate.
  • the substrate 10 may also be a flexible substrate, and the material of the flexible substrate may include polyimide (PI).
  • PI polyimide
  • the substrate 10 may be provided with a double-layer polyimide layer to further increase the flexibility of the substrate 10.
  • the display panel 100 may further include a light emitting device layer 50 on the substrate 10.
  • the light emitting device layer 50 includes an anode layer 51, a light emitting layer 52 on the anode layer 51, and a cathode layer 53 on the light emitting layer 52.
  • the existing display panel 100 can be divided into top-emitting and bottom-emitting display panels 100 according to different light-emitting directions.
  • the following specific embodiments of the present application take the top-emitting display panel 100 as an example for description.
  • the anode layer 51 of the present application may be composed of a non-transparent material
  • the cathode layer 53 may be composed of a transparent material
  • the light source emitted by the light-emitting layer 52 is reflected by the anode layer 51 and emitted from the cover layer.
  • the anode layer 51 may include at least one anode 510 arranged along the first direction X or/and the second direction Y.
  • the cathode layer 53 may include at least one cathode 530 arranged along the second direction Y.
  • the anodes 510 are arranged in an array on the display panel 100, and one anode 510 corresponds to one sub-pixel.
  • the cathode layer 53 may include a plurality of cathodes 530 parallel to the first direction X, and two adjacent cathodes 530 are arranged in parallel.
  • the orthographic projection of the cathode 530 on the substrate 10 may coincide with the orthographic projection of the anode 510 on the substrate 10.
  • the touch control layer 20 and the light emitting device layer 50 may be provided in the same layer.
  • the first electrode layer 21 includes a plurality of the first electrode groups 210 parallel to the second direction Y, and two adjacent first electrode groups 210 are arranged in parallel.
  • the second electrode layer 22 includes a plurality of the second electrode groups 220 parallel to the first direction X, and two adjacent second electrode groups 220 are arranged in parallel.
  • the anode layer 51 and the first electrode layer 21 can be formed in the same photomask process.
  • the anode 510 may be spaced apart from and insulated from the first electrode group 210.
  • at least one first electrode group 210 may be provided between two adjacent anodes 510.
  • a first electrode group 210 may be provided between two adjacent anodes 510.
  • three first electrode groups 210 may be arranged between two adjacent anodes 510.
  • the number of the first electrode groups 210 between two adjacent anodes 510 can be set according to the specific distance and the length of the first electrode groups 210 in the first direction X. This application does not make specific restrictions.
  • the first electrode layer 21 further includes a plurality of first touch leads 212.
  • the first touch wire 212 can be formed in the same process as the first electrode layer 21 and the anode layer 51. One end of the first touch wire 212 is electrically connected to the first electrode group 210, and the other end of the first touch wire 212 is electrically connected to the driving chip 70.
  • the display panel 100 further includes a thin film transistor layer 40 located on the substrate 10, and a light shielding layer 41 located between the substrate 10 and the thin film transistor layer 40.
  • the first electrode layer 21 and the light shielding layer 41 are provided in the same layer.
  • the first electrode layer 21 and the light shielding layer 41 are provided in the same layer.
  • the first electrode layer 21 and the light shielding layer 41 are formed in the same photomask process.
  • the orthographic projection of the first electrode layer 21 on the substrate 10 coincides with the orthographic projection of the first electrode layer 21 on the substrate 10 in FIG. 7.
  • the first electrode layer 21 and the anode layer 51 may be arranged in different layers.
  • the anode layer 51 is located on the thin film transistor layer 40 and is in contact with the thin film transistor layer 40, and the first electrode layer 21 may be located in the pixel definition layer 30.
  • the first electrode layer 21 is located between the two pixel definition layers 30.
  • the anode layer 51 and the first electrode layer 21 of this embodiment are arranged in different layers, which avoids the electrical connection between the anode layer 51 and the first electrode layer 21 in the process.
  • the second electrode layer 22 may be located on the pixel defining layer 30, and the cathode layer 53 may be located on the light-emitting layer 52.
  • the second electrode layer 22 and the cathode layer 53 may be formed in the same photomask process.
  • a second electrode layer 22 including a plurality of second electrode groups 220 and a cathode layer 53 including a plurality of cathodes 530 are formed.
  • the cathode 530 may be spaced apart and insulated from the second electrode group 220.
  • At least one second electrode group 220 may be provided between two adjacent cathodes 530.
  • a second electrode group 220 may be provided between two adjacent cathodes 530.
  • three second electrode groups 220 may be arranged between two adjacent cathodes 530.
  • the number of the second electrode groups 220 between two adjacent cathodes 530 can be set according to the specific distance and the length of the second electrode groups 220 in the second direction Y. This application does not make specific restrictions.
  • the display panel 100 may further include an isolation layer 54 on the second electrode layer 22.
  • the cathode layer 53 may include a first cathode layer 531 and a second cathode layer 532, the first cathode layer 531 may be located on the isolation layer 54, and the second cathode layer 532 may be located at all.
  • the first cathode layer 531 is used as a virtual electrode, and no voltage is added to prevent the second electrode group 220 arranged in parallel with the first cathode layer 531 from forming a capacitance, affecting the touch signal of the second electrode group 220 transmission.
  • the second cathode layer 532 is a conventional cathode layer 53, and a constant voltage is applied.
  • the cross section of the isolation layer 54 may be an inverted trapezoid.
  • the existence of the isolation layer 54 can prevent the cathode layer 53 and the second electrode layer 22 from being formed in the same photomask process.
  • the second electrode layer 22 can be patterned.
  • the cathode layer 53 material is directly deposited on the entire surface of the display panel 100.
  • the existence of the isolation layer 54 can The cathode layer 53 is made to form the first cathode layer 531 and the second cathode layer 532, and the two are disconnected.
  • the isolation layer 54 and the second cathode layer 532 may be removed after the disconnected second cathode layer 532 is formed.
  • the display panel 100 further includes a second touch lead layer.
  • the second touch lead layer includes at least one second touch lead 222, and the second touch lead 222 may be located at the edge of the display panel 100.
  • One end of the second touch wire 222 is electrically connected to the second electrode group 220, and the other end of the second touch wire 222 is electrically connected to the driving chip 70.
  • the second touch lead layer may be provided in the same layer as the light shielding layer 41.
  • the second touch lead layer and the light shielding layer 41 may be formed in the same photomask process.
  • the second touch lead 222 layer further includes connection terminals 223 located on both sides of the display panel 100.
  • the orthographic projection of the cathode layer 53 on the substrate 10 coincides with the orthographic projection of the connecting terminal 223 on the substrate 10.
  • One end of the cathode layer 53 is electrically connected to the connection terminal 223 through a corresponding via hole.
  • the display panel 100 further includes a thin film encapsulation layer 60 on the light emitting device layer 50, and the second electrode layer 22 may be located in the thin film encapsulation layer 60.
  • the thin film encapsulation layer 60 may include a first inorganic layer 601 on the cathode layer 53, a first organic layer 602 on the first inorganic layer 601, and a first organic layer 602 on the first organic layer. 602 on the second inorganic layer 603.
  • the second electrode layer 22 may be disposed between the first inorganic layer 601 and the first organic layer 602 or between the first organic layer 602 and the second inorganic layer 603.
  • the specific location is not limited in this application.
  • the second touch lead layer may also be provided in the same layer as the second electrode layer 22.
  • the first electrode layer 21 may be disposed in the thin film encapsulation layer 60, and the specific structure is not specifically limited in this application.
  • the application also proposes a display device, wherein the display device includes the above-mentioned display panel.
  • the working principle of the display device is the same as or similar to the above-mentioned display panel, and will not be repeated in this application.
  • This application proposes a display panel and a display device, including a substrate, a touch layer on the substrate, the touch layer including a first electrode layer, and a pixel definition layer on the first electrode layer , And a second electrode layer located on the pixel definition layer; the first electrode layer includes at least one first electrode group arranged along a first direction; the second electrode layer includes at least one first electrode group arranged along a second direction The second electrode group; the pixel definition layer covers the first electrode group, and the first electrode group is perpendicular to the second electrode group.
  • the present application combines the touch layer and the light-emitting device layer by arranging the sensing electrode layer and the anode layer in the touch layer in the same layer, and the driving electrode layer and the cathode layer in the same layer, thereby combining the touch layer and the light-emitting device layer, reducing the thickness of the display panel and simplifying the production Process of touch layer.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种显示面板(100)及显示装置,包括触控层(20),触控层(20)包括第一电极层(21)、像素定义层(30)及第二电极层(22);第一电极层(21)包括至少一沿第一方向(X)设置的第一电极组(210);第二电极层(22)包括至少一沿第二方向(Y)设置的第二电极组(220);像素定义层(30)覆盖第一电极组(210),第一电极组(210)与第二电极组(220)垂直设置。

Description

显示面板及显示装置 技术领域
本申请涉及显示领域,特别涉及一种显示面板及显示装置。
背景技术
触控技术作为智能化的一个重要指标,应用范围越来越广。触控技术经过快速的发展,按照触控原理可分为压阻式、光学式、电容式等,其中电容式触控技术经过多代的发展,应用最为广泛。电容式触控技术大致可分为外挂式触控(Add-on Touch)、外嵌式触控(On-cellTouch)、及内嵌式(In-cell Touch)。
在现有技术中,内嵌式触控技术减少了OLED显示器件的厚度,但制程工艺较为繁琐,增加了工艺难度及成本,且在薄膜封装层上制备触控层会增加封装失效的风险。
因此,亟需一种显示面板以解决上述技术问题。
技术问题
本申请提供一种显示面板及显示装置,以解决现有内嵌式触控技术制程工艺复杂的技术问题。
技术解决方案
本申请提供一种显示面板,其包括衬底、位于所述衬底上的触控层,所述触控层包括第一电极层、位于所述第一电极层上的像素定义层、及位于所述像素定义层上的第二电极层;
所述第一电极层包括至少一沿第一方向设置的第一电极组;
所述第二电极层包括至少一沿第二方向设置的第二电极组;
其中,所述像素定义层覆盖所述第一电极组,所述第一电极组与所述第二电极组垂直设置。
在本申请的显示面板中,
所述显示面板还包括位于所述衬底上的薄膜晶体管层、及位于所述薄膜晶体管层上的发光器件层;
所述发光器件层与所述触控层同层设置;
所述发光器件层包括阳极层、位于所述阳极层上的发光层、位于所述发光层上的阴极层;
所述阳极层包括至少一沿所述第一方向设置的阳极;
所述阴极层包括至少一沿所述第二方向设置的阴极;
所述阳极与所述第一电极组间隔且绝缘设置;
所述阴极与所述第二电极组间隔且绝缘设置。
在本申请的显示面板中,在所述第一方向上,相邻两所述阳极之间设置有至少一所述第一电极组;
在所述第二方向上,相邻两所述阴极之间设置有至少一所述第二电极组。
在本申请的显示面板中,
所述第一电极层与所述阳极层同层设置。
在本申请的显示面板中,
所述第一电极层与所述阳极层非同层设置;
其中,所述阳极层位于所述薄膜晶体管层上,且与所述薄膜晶体管层接触,所述第一电极层位于所述像素定义层内。
在本申请的显示面板中,
所述第二电极层与所述阴极层在同一道光罩工艺中形成。
在本申请的显示面板中,
所述显示面板还包括位于所述第二电极层上的隔离层;
所述阴极层包括第一阴极层和第二阴极层;
所述第一阴极层位于所述绝缘层上;
所述第二阴极层位于所述发光层上;
其中,所述隔离层的剖面为倒梯形。
在本申请的显示面板中,
所述显示面板还包括位于所述发光器件层上的薄膜封装层;
所述第二电极层位于所述薄膜封装层内。
在本申请的显示面板中,所述显示面板还包括位于所述衬底与所述薄膜晶体管层之间的遮光层;
所述第一电极层与所述遮光层同层设置。
在本申请的显示面板中,
所述显示面板还包括第二触控引线层;
所述第二触控引线层包括至少一第二触控引线,所述第二触控引线位于所述显示面板的边缘;
一所述第二触控引线与一所述第二电极组电连接;
其中,所述第二触控引线层与遮光层同层设置。
本申请还提出了一种显示装置,其包括显示面板;
所述显示面板包括衬底、位于所述衬底上的触控层,所述触控层包括第一电极层、位于所述第一电极层上的像素定义层、及位于所述像素定义层上的第二电极层;
所述第一电极层包括至少一沿第一方向设置的第一电极组;
所述第二电极层包括至少一沿第二方向设置的第二电极组;
其中,所述像素定义层覆盖所述第一电极组,所述第一电极组与所述第二电极组垂直设置。
在本申请的显示装置中,所述显示面板还包括位于所述衬底上的薄膜晶体管层、及位于所述薄膜晶体管层上的发光器件层;
所述发光器件层与所述触控层同层设置;
所述发光器件层包括阳极层、位于所述阳极层上的发光层、位于所述发光层上的阴极层;
所述阳极层包括至少一沿所述第一方向设置的阳极;
所述阴极层包括至少一沿所述第二方向设置的阴极;
所述阳极与所述第一电极组间隔且绝缘设置;
所述阴极与所述第二电极组间隔且绝缘设置。
在本申请的显示装置中,
在所述第一方向上,相邻两所述阳极之间设置有至少一所述第一电极组;
在所述第二方向上,相邻两所述阴极之间设置有至少一所述第二电极组。
在本申请的显示装置中,
所述第一电极层与所述阳极层同层设置。
在本申请的显示装置中,
所述第一电极层与所述阳极层非同层设置;
其中,所述阳极层位于所述薄膜晶体管层上,且与所述薄膜晶体管层接触,所述第一电极层位于所述像素定义层内。
在本申请的显示装置中,
所述第二电极层与所述阴极层在同一道光罩工艺中形成。
在本申请的显示装置中,
所述显示面板还包括位于所述第二电极层上的隔离层;
所述阴极层包括第一阴极层和第二阴极层;
所述第一阴极层位于所述绝缘层上;
所述第二阴极层位于所述发光层上;
其中,所述隔离层的剖面为倒梯形。
在本申请的显示装置中,
所述显示面板还包括位于所述发光器件层上的薄膜封装层;
所述第二电极层位于所述薄膜封装层内。
在本申请的显示装置中,所述显示面板还包括位于所述衬底与薄膜晶体管层之间的遮光层;
所述第一电极层与所述遮光层同层设置。
在本申请的显示装置中,
所述显示面板还包括第二触控引线层;
所述第二触控引线层包括至少一第二触控引线,所述第二触控引线位于所述显示面板的边缘;
一所述第二触控引线与一所述第二电极组电连接;
其中,所述第二触控引线层与遮光层同层设置。
有益效果
本申请通过将触控层中感应电极层与阳极层同层设置、及驱动电极层与阴极层同层设置,将触控层与发光器件层合并,减小了显示面板的厚度以及简化了制作触控层的工艺。
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发明的一些实施例,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为本申请显示面板的第一种俯视结构图;
图2为图1中区域M的放大图;
图3为本申请显示面板中阳极层的俯视结构图;
图4为本申请显示面板中阴极层的俯视结构图;
图5为图1中所示显示面板沿A-A的截面图;
图6为图1中所示显示面板沿B-B的第一种截面图;
图7为图1中所示显示面板沿C-C的第一种截面图;
图8为本申请显示面板的第一种俯视结构图;
图9为图1中所示显示面板沿C-C的第二种截面图;
图10为图1中所示显示面板沿C-C的第三种截面图;
图11为图1中所示显示面板沿B-B的第二种截面图;
图12为图1中所示显示面板沿B-B的第三种截面图。
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。
在现有技术中,与外嵌式触控技术相比,内嵌式触控技术虽然减少了OLED显示器件的厚度,但其制程工艺繁琐,增加了工艺难度及成本,且在薄膜封装层上制备触控层会增加封装失效的风险。因此,本申请基于上述技术问题提出了一种显示面板。
请参阅图1~图12,所述显示面板100包括衬底10、位于所述衬底10上的触控层20,所述触控层20包括第一电极层21、位于所述第一电极层21上的像素定义层30、及位于所述像素定义层30上的第二电极层22。
请参阅图1,所述第一电极层21包括至少一沿第一方向X设置的第一电极组210。所述第二电极层22包括至少一沿第二方向Y设置的第二电极组220。所述第一电极组210与所述第二电极组220在所述第一方向X及所述第二方向Y横纵交错设置。
请参阅图2,任一所述第一电极组210包括沿第二方向Y排列的至少一第一电极211,相邻两所述第一电极211电连接。任一所述第二电极组220包括沿第一方向X排列的至少一第二电极221,相邻两所述第二电极221电连接。
在本实施例中,所述第一方向X可以为与所述显示面板100长边平行的方向,所述第二方向Y可以为与所述显示面板100短边平行的方向。
在本实施例中,所述像素定义层30覆盖所述第一电极组210,所述第一电极组210与所述第二电极组220垂直设置。
本申请通过将触控层20中的第一电极层21及第二电极层22设置与所述像素定义层30的上下两侧,将所述触控层20整合在发光器件层50中。以及,在制作发光器件层50中的阳极层51与阴极层53时,可以同时进行所述第一电极层21及所述第二电极层22的制备,简化了内嵌式触控技术的工艺步骤以及减小了显示面板100的厚度。
下面以具体实施例对本申请的技术方案进行说明。
请参阅图1~图12,所述显示面板100还可以包括位于所述衬底10上的薄膜晶体管层40。所述薄膜晶体管层40可以包括至少一薄膜晶体管。所述薄膜晶体管可以为蚀刻阻挡型、背沟道蚀刻型或顶栅薄膜晶体管型等中的一种结构,具体没有限制。
例如顶栅薄膜晶体管型的所述薄膜晶体管可以包括:缓冲层、有源层、栅绝缘层、栅极层、层间介质层、源漏极层以及平坦层。所述薄膜晶体管中的上述结构,本申请不作详细介绍。
在本实施例中,所述衬底10可以为玻璃基板、石英基板、树脂基板等中的一种。所述衬底10还可以为柔性基板,所述柔性基板的材料可以包括聚酰亚胺(PI)。所述衬底10可以通过设置双层聚酰亚胺层以进一步增加所述衬底10的柔性。
请参阅图1~图12,所述显示面板100还可以包括位于所述衬底10上的发光器件层50。所述发光器件层50包括阳极层51、位于所述阳极层51上的发光层52、位于所述发光层52上的阴极层53。
在现有的显示面板100中,根据发光方向的不同可以分为顶发光和底发光显示面板100。本申请下面的具体实施例以顶发光显示面板100为例进行说明。
本申请的阳极层51可以由非透明材料构成,所述阴极层53可以有透明材料构成,所述发光层52发出的光源经过所述阳极层51反射,从盖板层射出。
请参阅图1~图11,所述阳极层51可以包括至少一沿所述第一方向X或/和所述第二方向Y设置的阳极510。所述阴极层53可以包括至少一沿所述第二方向Y设置的阴极530。
请参阅图3,所述阳极510在所述显示面板100上呈阵列分布,一所述阳极510对应一子像素。
请参阅图4,所述阴极层53可以包括多条与所述第一方向X平行的阴极530,相邻两所述阴极530平行设置。在所述显示面板100的俯视图方向,所述阴极530在所述衬底10上的正投影可以与所述阳极510在所述衬底10上的正投影重合。
请参阅图5~图7,所述触控层20可以与所述发光器件层50同层设置。所述第一电极层21包括多条与第二方向Y平行的所述第一电极组210,相邻两所述第一电极组210平行设置。所述第二电极层22包括多条与第一方向X平行的所述第二电极组220,相邻两所述第二电极组220平行设置。
请参阅图5~图7,所述阳极层51可以与所述第一电极层21在同一道光罩工艺中形成。所述阳极510可以与所述第一电极组210间隔且绝缘设置。在本实施例中,在所述第一方向X上,相邻两所述阳极510之间可以设置有至少一所述第一电极组210。
请参阅图3,在所述第一方向X上,相邻两所述阳极510之间可以设置有一所述第一电极组210。请参阅图8,在所述第一方向X上,相邻两所述阳极510之间可以设置有三个所述第一电极组210。
在所述第一方向X上,相邻两所述阳极510之间的所述第一电极组210的数量可以根据具体间距以及所述第一电极组210在第一方向X的长度进行设置,本申请不作具体的限制。
请参阅图3,所述第一电极层21还包括多条第一触控引线212。所述第一触控引线212可以与所述第一电极层21及所述阳极层51在同一道工艺中形成。一所述第一触控引线212的一端与一所述第一电极组210电连接,一所述第一触控引线212的另一端与驱动芯片70电连接。
在一种实施例中,所述显示面板100还包括位于所述衬底10上的薄膜晶体管层40、以及位于所述衬底10与所述薄膜晶体管层40之间的遮光层41,所述第一电极层21与所述遮光层41同层设置。
请参阅图9,所述第一电极层21与所述遮光层41同层设置。所述第一电极层21与所述遮光层41在同一道光罩工艺中形成。
在本实施例中,所述第一电极层21在所述衬底10上正投影与图7中的所述第一电极层21在所述衬底10上的正投影重合。
在一种实施例中,所述第一电极层21与所述阳极层51可以非同层设置。请参阅图10,所述阳极层51位于所述薄膜晶体管层40上,且与所述薄膜晶体管层40接触,所述第一电极层21可以位于所述像素定义层30内。或者通过设置双层所述像素定义层30,使得所述第一电极层21位于两层像素定义层30之间。
与图7相比,本实施例的所述阳极层51与所述第一电极层21非同层设置,避免了在工艺上所述阳极层51与所述第一电极层21的电连接。
请参阅图5~图7,所述第二电极层22可以位于所述像素定义层30上,所述阴极层53可以位于所述发光层52上。所述第二电极层22可以与所述阴极层53在同一道光罩工艺中形成。经图案化处理,形成包括多个所述第二电极组220的第二电极层22及多个所述阴极530的阴极层53。所述阴极530可以与所述第二电极组220间隔且绝缘设置。
在本实施例中,在所述第二方向Y上,相邻两所述阴极530之间可以设置有至少一所述第二电极组220。请参阅图4,在所述第二方向Y上,相邻两所述阴极530之间可以设置有一所述第二电极组220。请参阅图8,在所述第二方向Y上,相邻两所述阴极530之间可以设置有三条所述第二电极组220。
在所述第一方向X上,相邻两所述阴极530之间的所述第二电极组220的数量可以根据具体间距以及所述第二电极组220在第二方向Y的长度进行设置,本申请不作具体的限制。
在一种实施例中,所述显示面板100还可以包括位于所述第二电极层22上的隔离层54。
请参阅图11,所述阴极层53可以包括第一阴极层531和第二阴极层532,所述第一阴极层531可以位于所述隔离层54上,所述第二阴极层532可以位于所述发光层52上。所述第一阴极层531作为虚拟电极,不附加电压,以避免与所述第一阴极层531并列设置的所述第二电极组220形成电容,影响所述第二电极组220触控信号的传输。所述第二阴极层532为常规阴极层53,施加恒定电压。
在本实施例中,所述隔离层54的剖面可以为倒梯形。所述隔离层54的存在可以使得所述阴极层53与所述第二电极层22不在同一道光罩工艺中形成。可以进行所述第二电极层22的图案化处理,当形成所述隔离层54后,直接在所述显示面板100上整面沉积所述阴极层53材料,所述隔离层54的存在,可以使得所述阴极层53形成所述第一阴极层531及所述第二阴极层532,使二者断开。
但是基于面板的平整性,所述隔离层54及所述第二阴极层532可以在形成断开的所述第二阴极层532后去除。
在一种实施例中,所述显示面板100还包括第二触控引线层。
请参阅图4,所述第二触控引线层包括至少一第二触控引线222,所述第二触控引线222可以位于所述显示面板100的边缘。一所述第二触控引线222的一端与一所述第二电极组220电连接,一所述第二触控引线222的另一端与驱动芯片70电连接。
在本实施例中,所述第二触控引线层可以与所述遮光层41同层设置。所述第二触控引线层可以与所述遮光层41在同一道光罩工艺中形成。
在本实施例中,所述第二触控引线222层还包括位于所述显示面板100两侧的连接端子223。所述阴极层53在所述衬底10上的正投影与所述连接端子223在所述衬底10上的正投影重合。所述阴极层53的一端通过对应过孔与所述连接端子223电连接。
在一种实施例中,所述显示面板100还包括位于所述发光器件层50上的薄膜封装层60,所述第二电极层22可以位于所述薄膜封装层60内。
请参阅图12,所述薄膜封装层60可以包括位于所述阴极层53上的第一无机层601、位于所述第一无机层601上的第一有机层602、位于所述第一有机层602上的第二无机层603。
所述第二电极层22可以设置于所述第一无机层601与所述第一有机层602之间、或者所述第一有机层602与所述第二无机层603之间。具***置本申请不作具体限制。
在图12的基础上,所述第二触控引线层也可以与所述第二电极层22同层设置。
在一种实施例中,所述第一电极层21可以设置于薄膜封装层60内,具体结构本申请不作具体限制。
本申请还提出了一种显示装置,其中,所述显示装置包括上述显示面板。所述显示装置的工作原理与上述显示面板相同或相似,本申请不再赘述。
本申请提出了一种显示面板及显示装置,包括衬底、位于所述衬底上的触控层,所述触控层包括第一电极层、位于所述第一电极层上的像素定义层、及位于所述像素定义层上的第二电极层;所述第一电极层包括至少一沿第一方向设置的第一电极组;所述第二电极层包括至少一沿第二方向设置的第二电极组;所述像素定义层覆盖所述第一电极组,所述第一电极组与所述第二电极组垂直设置。本申请通过将触控层中感应电极层与阳极层同层设置、及驱动电极层与阴极层同层设置,将触控层与发光器件层合并,减小了显示面板的厚度以及简化了制作触控层的工艺。
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 (20)

  1. 一种显示面板,其包括衬底、位于所述衬底上的触控层,所述触控层包括第一电极层、位于所述第一电极层上的像素定义层、及位于所述像素定义层上的第二电极层;
    所述第一电极层包括至少一沿第一方向设置的第一电极组;
    所述第二电极层包括至少一沿第二方向设置的第二电极组;
    其中,所述像素定义层覆盖所述第一电极组,所述第一电极组与所述第二电极组垂直设置。
  2. 根据权利要求1所述的显示面板,其中,
    所述显示面板还包括位于所述衬底上的薄膜晶体管层、及位于所述薄膜晶体管层上的发光器件层;
    所述发光器件层与所述触控层同层设置;
    所述发光器件层包括阳极层、位于所述阳极层上的发光层、位于所述发光层上的阴极层;
    所述阳极层包括至少一沿所述第一方向设置的阳极;
    所述阴极层包括至少一沿所述第二方向设置的阴极;
    所述阳极与所述第一电极组间隔且绝缘设置;
    所述阴极与所述第二电极组间隔且绝缘设置。
  3. 根据权利要求2所述的显示面板,其中,
    在所述第一方向上,相邻两所述阳极之间设置有至少一所述第一电极组;
    在所述第二方向上,相邻两所述阴极之间设置有至少一所述第二电极组。
  4. 根据权利要求2所述的显示面板,其中,
    所述第一电极层与所述阳极层同层设置。
  5. 根据权利要求2所述的显示面板,其中,
    所述第一电极层与所述阳极层非同层设置;
    其中,所述阳极层位于所述薄膜晶体管层上,且与所述薄膜晶体管层接触,所述第一电极层位于所述像素定义层内。
  6. 根据权利要求2所述的显示面板,其中,
    所述第二电极层与所述阴极层在同一道光罩工艺中形成。
  7. 根据权利要求2所述的显示面板,其中,
    所述显示面板还包括位于所述第二电极层上的隔离层;
    所述阴极层包括第一阴极层和第二阴极层;
    所述第一阴极层位于所述绝缘层上;
    所述第二阴极层位于所述发光层上;
    其中,所述隔离层的剖面为倒梯形。
  8. 根据权利要求2所述的显示面板,其中,
    所述显示面板还包括位于所述发光器件层上的薄膜封装层;
    所述第二电极层位于所述薄膜封装层内。
  9. 根据权利要求1所述的显示面板,其中,所述显示面板还包括位于所述衬底与薄膜晶体管层之间的遮光层;
    所述第一电极层与所述遮光层同层设置。
  10. 根据权利要求1所述的显示面板,其中,
    所述显示面板还包括第二触控引线层;
    所述第二触控引线层包括至少一第二触控引线,所述第二触控引线位于所述显示面板的边缘;
    一所述第二触控引线与一所述第二电极组电连接;
    其中,所述第二触控引线层与遮光层同层设置。
  11. 一种显示装置,其包括显示面板;
    所述显示面板包括衬底、位于所述衬底上的触控层,所述触控层包括第一电极层、位于所述第一电极层上的像素定义层、及位于所述像素定义层上的第二电极层;
    所述第一电极层包括至少一沿第一方向设置的第一电极组;
    所述第二电极层包括至少一沿第二方向设置的第二电极组;
    其中,所述像素定义层覆盖所述第一电极组,所述第一电极组与所述第二电极组垂直设置。
  12. 根据权利要求11所述的显示装置,其中,
    所述显示面板还包括位于所述衬底上的薄膜晶体管层、及位于所述薄膜晶体管层上的发光器件层;
    所述发光器件层与所述触控层同层设置;
    所述发光器件层包括阳极层、位于所述阳极层上的发光层、位于所述发光层上的阴极层;
    所述阳极层包括至少一沿所述第一方向设置的阳极;
    所述阴极层包括至少一沿所述第二方向设置的阴极;
    所述阳极与所述第一电极组间隔且绝缘设置;
    所述阴极与所述第二电极组间隔且绝缘设置。
  13. 根据权利要求12所述的显示装置,其中,
    在所述第一方向上,相邻两所述阳极之间设置有至少一所述第一电极组;
    在所述第二方向上,相邻两所述阴极之间设置有至少一所述第二电极组。
  14. 根据权利要求12所述的显示装置,其中,
    所述第一电极层与所述阳极层同层设置。
  15. 根据权利要求12所述的显示装置,其中,
    所述第一电极层与所述阳极层非同层设置;
    其中,所述阳极层位于所述薄膜晶体管层上,且与所述薄膜晶体管层接触,所述第一电极层位于所述像素定义层内。
  16. 根据权利要求12所述的显示装置,其中,
    所述第二电极层与所述阴极层在同一道光罩工艺中形成。
  17. 根据权利要求12所述的显示装置,其中,
    所述显示面板还包括位于所述第二电极层上的隔离层;
    所述阴极层包括第一阴极层和第二阴极层;
    所述第一阴极层位于所述绝缘层上;
    所述第二阴极层位于所述发光层上;
    其中,所述隔离层的剖面为倒梯形。
  18. 根据权利要求12所述的显示装置,其中,
    所述显示面板还包括位于所述发光器件层上的薄膜封装层;
    所述第二电极层位于所述薄膜封装层内。
  19. 根据权利要求11所述的显示装置,其中,所述显示面板还包括位于所述衬底与薄膜晶体管层之间的遮光层;
    所述第一电极层与所述遮光层同层设置。
  20. 根据权利要求11所述的显示装置,其中,
    所述显示面板还包括第二触控引线层;
    所述第二触控引线层包括至少一第二触控引线,所述第二触控引线位于所述显示面板的边缘;
    一所述第二触控引线与一所述第二电极组电连接;
    其中,所述第二触控引线层与遮光层同层设置。
PCT/CN2019/114273 2019-08-13 2019-10-30 显示面板及显示装置 WO2021027081A1 (zh)

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CN112394836A (zh) * 2020-11-17 2021-02-23 武汉华星光电半导体显示技术有限公司 触控显示面板及其制作方法
WO2022137539A1 (ja) * 2020-12-25 2022-06-30 シャープ株式会社 発光装置
CN114594879B (zh) * 2022-03-16 2024-01-16 合肥维信诺科技有限公司 触控显示面板及其制备方法和显示装置
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