WO2020062454A1 - 显示面板和显示装置 - Google Patents

显示面板和显示装置 Download PDF

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Publication number
WO2020062454A1
WO2020062454A1 PCT/CN2018/114242 CN2018114242W WO2020062454A1 WO 2020062454 A1 WO2020062454 A1 WO 2020062454A1 CN 2018114242 W CN2018114242 W CN 2018114242W WO 2020062454 A1 WO2020062454 A1 WO 2020062454A1
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Prior art keywords
layer
display panel
disposed
substrate
metal layer
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PCT/CN2018/114242
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English (en)
French (fr)
Inventor
叶剑
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 US16/311,006 priority Critical patent/US10782837B2/en
Publication of WO2020062454A1 publication Critical patent/WO2020062454A1/zh

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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40OLEDs integrated with touch screens
    • 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
    • H10K59/121Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • H10K59/1216Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being capacitors

Definitions

  • the present invention relates to the field of display technology, and in particular, to a display panel and a display device.
  • Touch technology is the main input form of human-computer interaction.
  • Touch technology mainly includes two-dimensional touch technology and three-dimensional touch technology.
  • the two-dimensional touch technology mainly performs multi-touch recognition on a two-dimensional plane composed of the X-axis and the Y-axis, and the three-dimensional touch technology adds the Touch recognition.
  • the user can perform different operations on the terminal by adjusting the pressing pressure on the terminal. For example, when using a mobile phone to play a game, you can control the speed and the degree of jumping according to the degree of pressing the mobile phone.
  • An object of the present invention is to provide a display panel and a display device, which can reduce the complexity of pressure detection.
  • An embodiment of the present invention provides a display panel including: a metal layer, a substrate, an insulating layer, and a cathode layer;
  • the substrate is disposed on the metal layer
  • the insulating layer is disposed on the substrate, and the insulating layer and the substrate are used to insulate the metal layer and the cathode layer from each other;
  • the cathode layer is disposed on the insulation layer, and a capacitance is formed between the cathode layer and the metal layer. When the display panel is pressed, the capacitance between the cathode layer and the metal layer changes. ;
  • the display panel further includes an elastic layer, and the elastic layer is disposed between the substrate and the metal layer.
  • the display panel further includes a control unit, and the control unit is electrically connected to the metal layer and the cathode layer;
  • the control unit is configured to detect a first capacitance between the cathode layer and the metal layer when the display panel is not pressed;
  • the control unit is configured to detect a second capacitance between the cathode layer and the metal layer when the display panel is pressed;
  • the control unit is configured to generate a pressing force applied to the display panel according to the first capacitor and the second capacitor.
  • An embodiment of the present invention provides a display panel including: a metal layer, a substrate, an insulating layer, and a cathode layer;
  • the substrate is disposed on the metal layer
  • the insulating layer is disposed on the substrate, and the insulating layer and the substrate are used to insulate the metal layer and the cathode layer from each other;
  • the cathode layer is disposed on the insulation layer, and a capacitance is formed between the cathode layer and the metal layer. When the display panel is pressed, the capacitance between the cathode layer and the metal layer changes. .
  • the display panel further includes a control unit, and the control unit is electrically connected to the metal layer and the cathode layer;
  • the control unit is configured to detect a first capacitance between the cathode layer and the metal layer when the display panel is not pressed;
  • the control unit is configured to detect a second capacitance between the cathode layer and the metal layer when the display panel is pressed;
  • the control unit is configured to generate a pressing force applied to the display panel according to the first capacitor and the second capacitor.
  • the cathode layer includes a plurality of touch units, and the plurality of touch units are electrically connected to the control unit;
  • the plurality of touch units are electrically independent from each other;
  • the control unit is configured to determine a position where the display panel is pressed according to a change in capacitance between the plurality of touch units and a pressing finger.
  • the display panel further includes an elastic layer disposed between the substrate and the metal layer.
  • the metal layer is grounded.
  • the insulating layer includes an anode layer, a light emitting layer, and a pixel definition layer;
  • the anode layer is disposed on the substrate
  • the light emitting layer is disposed on the anode layer
  • the pixel definition layer is disposed on the anode layer and the light emitting layer.
  • the display panel further includes a thin film transistor layer and a flat layer;
  • the thin film transistor layer is disposed on the substrate;
  • the flat layer is disposed on the thin film transistor layer
  • the insulating layer is disposed on the flat layer.
  • the display panel further includes a packaging layer, a polarizer, and a cover plate;
  • the encapsulation layer is disposed on the anode layer
  • the polarizer is disposed on the packaging layer
  • the cover is disposed on the polarizer.
  • An embodiment of the present invention further provides a display device, which includes a display panel, and the display panel includes:
  • the substrate is disposed on the metal layer
  • the insulating layer is disposed on the substrate, and the insulating layer and the substrate are used to insulate the metal layer and the cathode layer from each other;
  • the cathode layer is disposed on the insulation layer, and a capacitance is formed between the cathode layer and the metal layer. When the display panel is pressed, the capacitance between the cathode layer and the metal layer changes. .
  • the display panel further includes a control unit, and the control unit is electrically connected to the metal layer and the cathode layer;
  • the control unit is configured to detect a first capacitance between the cathode layer and the metal layer when the display panel is not pressed;
  • the control unit is configured to detect a second capacitance between the cathode layer and the metal layer when the display panel is pressed;
  • the control unit is configured to generate a pressing force applied to the display panel according to the first capacitor and the second capacitor.
  • the cathode layer includes a plurality of touch units, and the plurality of touch units are electrically connected to the control unit;
  • the plurality of touch units are electrically independent from each other;
  • the control unit is configured to determine a position where the display panel is pressed according to a change in capacitance between the plurality of touch units and a pressing finger.
  • the display panel further includes an elastic layer disposed between the substrate and the metal layer.
  • the metal layer is grounded.
  • the insulating layer includes an anode layer, a light emitting layer, and a pixel definition layer;
  • the anode layer is disposed on the substrate
  • the light emitting layer is disposed on the anode layer
  • the pixel definition layer is disposed on the anode layer and the light emitting layer.
  • the display device further includes a thin film transistor layer and a flat layer;
  • the thin film transistor layer is disposed on the substrate;
  • the flat layer is disposed on the thin film transistor layer
  • the insulating layer is disposed on the flat layer.
  • the display panel further includes a packaging layer, a polarizer, and a cover plate;
  • the encapsulation layer is disposed on the cathode layer
  • the polarizer is disposed on the packaging layer
  • the cover is disposed on the polarizer.
  • the display panel group and the display device according to the embodiments of the present invention are provided with a metal layer capable of forming a capacitance with the cathode layer.
  • a metal layer capable of forming a capacitance with the cathode layer.
  • FIG. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention.
  • FIG. 2 is another schematic structural diagram of a display panel according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a pressure detection scene of a display panel according to an embodiment of the present invention.
  • FIG. 4 is another schematic structural diagram of a display panel according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a scenario in which a touch unit and a metal layer form a capacitor according to an embodiment of the present invention.
  • an embodiment herein means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the invention.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they independent or alternative embodiments that are mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
  • FIG. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention.
  • the display panel 1 includes a metal layer 11, a substrate 12, an insulating layer 13, and a cathode layer 14.
  • the metal layer 11 is made of a metal material and has a conductive property. In some embodiments, the metal layer 11 is grounded and its potential is 0, which can provide a reference reference voltage. Specifically, for a display device such as a mobile phone, the metal layer 11 may be a middle frame made of a metal material, where the middle frame is a frame for supporting a display device such as a mobile phone.
  • the substrate 12 is disposed on the metal layer 11.
  • the substrate 12 is used to carry other structures thereon.
  • the substrate 12 may be made of a flexible material or a rigid material having insulation properties.
  • the substrate 12 may be made of polyimide.
  • the insulating layer 13 is provided on the substrate 12, and the insulating layer 13 is used to separate the metal layer 11 and the cathode layer 14 from each other and to insulate the metal layer 11 and the cathode layer 14 from each other.
  • the insulating layer 13 includes an anode layer 131, a light emitting layer 132, and a pixel definition layer 133.
  • the anode layer 131 is disposed on the substrate 12.
  • a constituent material of the anode layer 131 may be a metal oxide.
  • the anode layer 131 is made of an opaque metal, such as aluminum.
  • the light emitting layer 132 is disposed on the anode layer 131, and the light emitting layer 132 is made of a light emitting material for emitting light.
  • the pixel definition layer 133 is disposed on the anode layer 131 and the light emitting layer 132.
  • the pixel definition layer 133 may be made of a photoresist material.
  • the display panel 1 further includes a thin film transistor layer 15 and a flat layer 16.
  • the thin film transistor layer 15 is provided on the substrate 12.
  • the thin film transistor layer 15 includes a doped layer 151, a first insulating layer 152, a first metal layer 153, a second insulating layer 154, a second metal layer 155, an inter-insulating layer 156, and a source-drain layer 157.
  • the doped layer 151 is disposed on the substrate 12, and the doped layer 151 includes a first doped region, a second doped region, and an organic layer disposed between the first doped region and the second doped region.
  • the active layer can be made of an amorphous silicon material.
  • the first insulating layer 152 is disposed on the doped layer.
  • the first insulating layer 152 may include a plurality of non-metal films, such as a silicon dioxide / silicon nitride compound (SiO 2 / SiNx) stack.
  • the first insulating layer 152 is used to isolate the doped layer 151 and the first metal layer 153.
  • the first metal layer 153 is disposed on the first insulating layer 152, and scan lines are disposed on the first metal layer 153.
  • the second insulating layer 154 is disposed on the first metal layer 153.
  • the second insulating layer 154 may include a plurality of non-metal thin films, such as a SiO 2 / SiNx stack.
  • the second insulating layer 154 is used to isolate the first metal layer 153 and the second metal layer 155.
  • the second metal layer 155 is disposed on the second insulating layer 154.
  • the inter-insulating layer 156 is disposed on the second metal layer 155 to isolate the second metal layer 155 and the source-drain layer 157.
  • the source-drain layer 157 is disposed on the inter-insulating layer 156, and source-drain traces are provided on the source-drain layer 157.
  • a flat layer 16 is provided on the thin film transistor layer 15, and an insulating layer 13 is provided on the flat layer 16. Specifically, the planarization layer 16 is disposed on the source and drain layers to smooth the surface.
  • the cathode layer 14 is disposed on the insulating layer 13, and a capacitor is formed between the cathode layer 14 and the metal layer 11.
  • the cathode layer may be prepared from one or more of metals such as magnesium, aluminum, and calcium. Since the cathode layer 14 and the metal layer 11 are both conductive conductors, and the substrate and the insulating layer disposed therebetween have an insulating effect, a capacitance is formed when the two are close to each other. When the display panel 1 is pressed, the distance between the cathode layer 14 and the metal layer 11 changes, and the capacitance between the two will also change. The change in capacitance between the two can be used to detect the impact on the display panel 1 Press the pressure.
  • the display panel 1 further includes a control unit 22.
  • the control unit 22 can collect capacitance information and analyze and process the capacitance information.
  • the control unit 22 may be a driving chip.
  • the control unit 22 is electrically connected to the metal layer 11 and the cathode layer 13 and can be used to detect a change in capacitance between the metal layer 11 and the cathode layer 13.
  • the control unit 22 can detect the first capacitance between the cathode layer 14 and the metal layer 11.
  • is the dielectric constant of the medium
  • the medium is the entire structure disposed between the cathode layer 14 and the metal layer 11, such as the substrate 12 and the insulating layer 13.
  • the dielectric permittivity is the relative permittivity of the substrate 12 and the insulating layer 13
  • k is an electrostatic force constant
  • S is an area facing the cathode layer 14 and the metal layer 11.
  • the control unit 22 detects the difference between the cathode layer 14 and the metal layer 11.
  • the second capacitor between It should be noted that, in an embodiment, the larger the pressing force to which the display panel 1 is subjected, the larger the deformation of the cathode layer 14 and the smaller the distance between the cathode layer 14 and the metal layer 11 is. The larger the two capacitances, that is, the pressing force received by the display panel 1 is positively related to the second capacitance.
  • control unit 22 can calculate the difference between the second capacitor and the first capacitor to determine the magnitude of the pressing force. That is, according to the change in capacitance between the cathode layer 14 and the metal layer 11 before and after the pressing, a pressure value corresponding to the pressing is generated.
  • the display panel 1 further includes an elastic layer 17, as shown in FIG. 2, the elastic layer 17 is disposed between the substrate 12 and the metal layer 11.
  • the cathode layer 14 includes a plurality of touch units 141.
  • the plurality of touch units are electrically connected to the control unit 22, and may be specifically connected to the control unit through a plurality of metal wires. 22 ELECTRICAL CONNECTION.
  • the cathode may be patterned to form the plurality of mutually independent touch units 141.
  • the above-mentioned touch unit 141 not only assists the display panel 1 when displaying on the display panel 1, but also assists the display panel 1 to realize two-dimensional touch. Specifically, when the display panel 1 is pressed by a finger, a capacitance is formed between the finger and the touch unit corresponding to the pressed position. By detecting a change in the capacitance between the finger and the corresponding touch unit, it is possible to calculate the pressure of the display panel 1 being pressed. position.
  • the display panel 1 further includes an encapsulation layer 18, a polarizer 19, and a cover plate 20.
  • the encapsulation layer 18 is disposed on the cathode layer 14.
  • the encapsulation layer 18 is used to isolate water vapor and oxygen from corrosion.
  • the encapsulation layer may be formed by a combination of multiple organic-inorganic thin films.
  • the polarizer 19 is disposed on the encapsulation layer 18.
  • the polarizer 19 is used to pass light emitted from the light emitting layer 132 in a specific direction. It should be noted that, as shown in FIG. 2 or 4, the polarizer 19 is fixed on the encapsulation layer 18 through the colloid layer 21.
  • the cover plate 20 is disposed on the polarizer 19.
  • the cover plate 20 may be a glass cover plate, which has a high hardness characteristic to increase the abrasion resistance of the display panel 1.
  • the display panel group and the display device according to the embodiments of the present invention are provided with a metal layer capable of forming a capacitance with the cathode layer.
  • a metal layer capable of forming a capacitance with the cathode layer.

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Abstract

一种显示面板(1)和显示装置,显示面板(1)包括金属层(11)、基板(12)、绝缘层(13)和阴极层(14);基板(12)设置在金属层(11)上;绝缘层(13)设置在基板(12)上,绝缘层(13)和基板(12)用于使金属层(11)和阴极层(14)彼此绝缘;阴极层(14)设置在绝缘层(13)上,阴极层(14)与金属层(11)之间形成电容,当显示面板(1)受到按压时,阴极层(14)与金属层(11)之间的电容发生变化。

Description

显示面板和显示装置 技术领域
本发明涉及显示技术领域,特别是涉及一种显示面板和显示装置。
背景技术
触控技术是人机交互的主要输入形式。触控技术主要包括二维触控技术以及三维触控技术。其中,二维触控技术主要对X轴、Y轴组成的二维平面,进行多点式触摸识别,而三维触控技术在二维触控技术的基础上,新增了对Z轴方向的触控识别。
在三维触控技术下,用户可以通过调节对终端的按压力度,来对终端进行不同的操作。比如,利用手机玩游戏时,可以根据按压手机的程度,来控制速度、跳跃程度等。
现有的压力值的检测方法,使用专门的压力传感器进行检测,造成压力检测较为复杂。
技术问题
本发明的目的在于提供一种显示面板和显示装置,可以降低压力检测的复杂性。
技术解决方案
本发明实施例提供了一种显示面板,其包括:金属层、基板、绝缘层和阴极层;
所述基板设置在所述金属层上;
所述绝缘层设置在所述基板上,所述绝缘层和所述基板用于使所述金属层和所述阴极层彼此绝缘;
所述阴极层设置在所述绝缘层上,所述阴极层与所述金属层之间形成电容,当所述显示面板受到按压时,所述阴极层与所述金属层之间的电容发生变化;
其中,所述基板和所述金属层之间具有空隙;
其中,所述显示面板还包括弹性层,所述弹性层设置在所述基板和所述金属层之间。
在一些实施例中,所述显示面板还包括控制单元,所述控制单元与所述金属层、所述阴极层电性连接;
所述控制单元用于检测所述显示面板未受到按压时,所述阴极层与所述金属层之间的第一电容;
所述控制单元用于检测所述显示面板受到按压时,所述阴极层与所述金属层之间的第二电容;以及
所述控制单元用于根据所述第一电容和所述第二电容,生成所述显示面板受到的按压力。
本发明实施例提供了一种显示面板,其包括:金属层、基板、绝缘层和阴极层;
所述基板设置在所述金属层上;
所述绝缘层设置在所述基板上,所述绝缘层和所述基板用于使所述金属层和所述阴极层彼此绝缘;
所述阴极层设置在所述绝缘层上,所述阴极层与所述 金属层之间形成电容,当所述显示面板受到按压时,所述阴极层与所述金属层之间的电容发生变化。
在一些实施例中,所述显示面板还包括控制单元,所述控制单元与所述金属层、所述阴极层电性连接;
所述控制单元用于检测所述显示面板未受到按压时,所述阴极层与所述金属层之间的第一电容;
所述控制单元用于检测所述显示面板受到按压时,所述阴极层与所述金属层之间的第二电容;以及
所述控制单元用于根据所述第一电容和所述第二电容,生成所述显示面板受到的按压力。
在一些实施例中,所述阴极层包括多个触控单元,所述多个触控单元与所述控制单元电性连接;
所述多个触控单元相互电性独立;
所述控制单元用于根据所述多个触控单元与按压手指之间电容的变化,确定所述显示面板受按压的位置。
在一些实施例中,所述基板和所述金属层之间具有空隙。
在一些实施例中,所述显示面板还包括弹性层,所述弹性层设置在所述基板和所述金属层之间。
在一些实施例中,所述金属层接地。
在一些实施例中,所述绝缘层包括阳极层、发光层和像素定义层;
所述阳极层设置在所述基板上;
所述发光层设置在所述阳极层上;
所述像素定义层设置在所述阳极层和所述发光层上。
在一些实施例中,所述显示面板还包括薄膜晶体管层和平坦层;
所述薄膜晶体管层设置在所述基板上;
所述平坦层设置在所述薄膜晶体管层上;
所述绝缘层设置在所述平坦层上。
在一些实施例中,所述显示面板还包括封装层、偏光片和盖板;
所述封装层设置在所述阳极层上;
所述偏光片设置在所述封装层上;
所述盖板设置在所述偏光片上。
本发明实施例还提供了一种显示装置,其包括显示面板,所述显示面板包括:
金属层、基板、绝缘层和阴极层;
所述基板设置在所述金属层上;
所述绝缘层设置在所述基板上,所述绝缘层和所述基板用于使所述金属层和所述阴极层彼此绝缘;
所述阴极层设置在所述绝缘层上,所述阴极层与所述金属层之间形成电容,当所述显示面板受到按压时,所述阴极层与所述金属层之间的电容发生变化。
在一些实施例中,所述显示面板还包括控制单元,所述控制单元与所述金属层、所述阴极层电性连接;
所述控制单元用于检测所述显示面板未受到按压时,所述阴极层与所述金属层之间的第一电容;
所述控制单元用于检测所述显示面板受到按压时,所述阴极层与所述金属层之间的第二电容;以及
所述控制单元用于根据所述第一电容和所述第二电容,生成所述显示面板受到的按压力。
在一些实施例中,所述阴极层包括多个触控单元,所述多个触控单元与所述控制单元电性连接;
所述多个触控单元相互电性独立;
所述控制单元用于根据所述多个触控单元与按压手指之间电容的变化,确定所述显示面板受按压的位置。
在一些实施例中,所述基板和所述金属层之间具有空隙。
在一些实施例中,所述显示面板还包括弹性层,所述弹性层设置在所述基板和所述金属层之间。
在一些实施例中,所述金属层接地。
在一些实施例中,所述绝缘层包括阳极层、发光层和像素定义层;
所述阳极层设置在所述基板上;
所述发光层设置在所述阳极层上;
所述像素定义层设置在所述阳极层和所述发光层上。
在一些实施例中,所述显示装置还包括薄膜晶体管层和平坦层;
所述薄膜晶体管层设置在所述基板上;
所述平坦层设置在所述薄膜晶体管层上;
所述绝缘层设置在所述平坦层上。
在一些实施例中,所述显示面板还包括封装层、偏光片和盖板;
所述封装层设置在所述阴极层上;
所述偏光片设置在所述封装层上;
所述盖板设置在所述偏光片上。
有益效果
本发明实施例的显示面板组和显示装置,设置了可以与阴极层形成电容的金属层,通过检测阴极层与金属层之间电容的变化,进行压力检测,降低了压力检测的复杂性。
附图说明
为让本发明的上述内容能更明显易懂,下文特举优选实施例,并配合所附图式,作详细说明如下:
图1为本发明实施例提供的显示面板的结构示意图。
图2为本发明实施例提供的显示面板的另一结构示意图。
图3为本发明实施例提供的显示面板的压力检测场 景示意图。
图4为本发明实施例提供的显示面板的又一结构示意图。
图5为本发明实施例提供的触控单元和金属层形成电容的场景示意图。
本发明的实施方式
以下各实施例的说明是参考附加的图式,用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语,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发明,而非用以限制本发明。
在图中,结构相似的单元是以相同标号表示。
在本文中提及“实施例”意味着,结合实施例描述的特定特征、结构或特性可以包含在本发明的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例,也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是,本文所描述的实施例可以与其它实施例相结合。
本发明实施例提供了一种显示装置,该显示装置包括显示面板,请参照图1,图1为本发明实施例提供的显示面板的结构示意图。该显示面板1包括金属层11、基板12、绝缘层13和阴极层14。
其中,金属层11采用金属材料制成,具有导电性能。在一些实施例中,金属层11接地,其电势为0,可以提供基准参考电压。具体的,例如对于手机等显示装置来说,该金属层11可以为采用金属材料制成的中框,其中中框为用于支撑手机等显示装置的框架。
基板12设置在金属层11上。基板12用于承载位于其上的其他结构。基板12可以采用具有绝缘性能的柔性材料或刚性材料制成。具体的,基板12可以为采用聚酰亚胺制成。
绝缘层13设置在基板12上,该绝缘层13用于间隔金属层11和阴极层14,使金属层11和阴极层14之间彼此绝缘。如图2所示,该绝缘层13包括阳极层131、发光层132和像素定义层133。其中,阳极层131设置在基板12上。该阳极层131的组成材料可以为金属氧化物。在一些实施例中,阳极层131采用不透光的金属制备,例如铝。发光层132设置在阳极层131上,该发光层132采用发光材料制成,用于发光。像素定义层133设置在阳极层131和发光层132上,该像素定义层133可以采用光阻材料制成。
在一些实施例中,所述显示面板1还包括薄膜晶体管层15和平坦层16。薄膜晶体管层15设置在基板12上。具体的,该薄膜晶体管层15包括掺杂层151、第一绝缘 层152、第一金属层153、第二绝缘层154、第二金属层155、间绝缘层156和源漏极层157。
其中,掺杂层151设置在基板12上,该掺杂层151包括第一掺杂区域、第二掺杂区域,以及设置在该第一掺杂区域和该第二掺杂区域之间的有源层。其中,有源层可以采用非晶硅材料制成。第一绝缘层152设置在掺杂层上。
该第一绝缘层152可以包括多层非金属膜,比如二氧化硅/氮硅化合物(SiO 2/SiNx)叠层。该第一绝缘层152用于隔绝掺杂层151和第一金属层153。
第一金属层153设置在第一绝缘层152上,该第一金属层153上设置有扫描线。
第二绝缘层154设置在第一金属层153上。第二绝缘层154可以包括多层非金属薄膜,比如SiO 2/SiNx叠层。该第二绝缘层154用于隔绝第一金属层153和第二金属层155。
第二金属层155设置在第二绝缘层154上。间绝缘层156设置在第二金属层155上,用于隔绝第二金属层155和源漏极层157。
源漏极层157设置在间绝缘层156上,该源漏极层157上设有源漏极走线。
平坦层16设置在上述薄膜晶体管层15上,绝缘层13设置在所述平坦层16上。具体的,平坦层16设置在 源漏极层上,用于使表面平整。
阴极层14设置在绝缘层13上,阴极层14与金属层11之间形成电容。其中,阴极层可以由镁、铝和钙等金属中的一种或多种制备而成。由于,阴极层14和金属层11都是具有导电性能的导体,且设置在二者之间的基板和绝缘层具有绝缘作用,因此二者靠近时会形成电容。当显示面板1受到按压后,阴极层14和金属层11之间的距离发生改变,二者之间的电容也会发生改变,可以通过二者之间电容的变化,来检测显示面板1受到的按压力。
在一些实施例中,该显示面板1还包括控制单元22。该控制单元22可以采集电容信息,并对电容信息进行分析处理。具体的,该控制单元22可以为驱动芯片。该控制单元22与金属层11、阴极层13电性连接,可以用于检测金属层11和阴极层13之间电容的变化。
如图3所示,当显示面板1未受到按压时,阴极层14与金属层11之间的间距为L1,此时控制单元22可以检测到阴极层14与金属层11之间的第一电容为
Figure PCTCN2018114242-appb-000001
其中ε为介质介电常数,其中该介质为设置在阴极层14与金属层11之间的全部结构,例如基板12和绝缘层13。具体的,该介质介电常数即基板12和绝缘层13对应的介电常数,k为静电力常量,S为阴极层14与金属层11之间的正对面积。当显示面板1受到按压后,阴极层14在压 力的作用下产生形变,阴极层14与金属层11之间的间距变为L2,此时,控制单元22检测到阴极层14与金属层11之间的第二电容为
Figure PCTCN2018114242-appb-000002
需要说明的是,在一实施例中,显示面板1受到的按压力越大,阴极层14形变越大,其与金属层11之间的间距越小,则其与金属层11之间的第二电容越大,即显示面板1受到的按压力与第二电容呈正相关。
综上,控制单元22可以计算第二电容和第一电容的差值,来确定按压力的大小。即可根据按压前后,阴极层14与金属层11之间电容的变化值,来生成该按压对应的压力值。
在一些实施例中,如图4所示,基板12和所述金属层11之间具有空隙23。在按压过程中,使基板12具有产生形变的空间。在一些实施例中,显示面板1还包括弹性层17,如图2所示,所述弹性层17设置在所述基板12和所述金属层11之间。
在一些实施例中,如图5所示,该阴极层14包括多个触控单元141,该多个触控单元与控制单元22电性连接,具体可以通过多条金属线,与该控制单元22电性连接。具体,可以对阴极进行图案化形成上述多个相互电性独立的触控单元141。
上述触控单元141不仅在显示面板1进行显示时,辅 助显示面板1进行显示,还可以辅助显示面板1实现二维触控。具体的,当显示面板1受手指按压时,手指与按压位置对应的触控单元之间形成电容,通过检测手指与对应触控单元之间电容的变化,即可以计算出显示面板1被按压的位置。
在一些实施例中,显示面板1还包括封装层18、偏光片19和盖板20。
其中,封装层18设置在阴极层14上。该封装层18用于隔绝水汽和氧气的腐蚀。具体的,该封装层可以通过多层的有机-无机薄膜的组合来形成。
偏光片19设置在封装层18上。该偏光片19用于使发光层132中射出的光按照特定方向通过。需要说明的是,如图2或4所示,该偏光片19通过胶体层21固定在封装层18上。
盖板20设置在所述偏光片19上。该盖板20可以为玻璃盖板,其具有硬度高的特性,以增加显示面板1的耐磨性能。当手指触摸在盖板20上时,由于人体电场,用户和阴极层14表面形成一个耦合电容,即可以进行触控检测。
本发明实施例的显示面板组和显示装置,设置了可以与阴极层形成电容的金属层,通过检测阴极层与金属层之间电容的变化,进行压力检测,降低了压力检测的复杂性。 综上所述,虽然本发明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发明,本领域的普通技术人员,在不脱离本发明的精神和范围内,均可作各种更动与润饰,因此本发明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:金属层、基板、绝缘层和阴极层;
    所述基板设置在所述金属层上;
    所述绝缘层设置在所述基板上,所述绝缘层和所述基板用于使所述金属层和所述阴极层彼此绝缘;
    所述阴极层设置在所述绝缘层上,所述阴极层与所述金属层之间形成电容,当所述显示面板受到按压时,所述阴极层与所述金属层之间的电容发生变化;
    其中,所述基板和所述金属层之间具有空隙;
    其中,所述显示面板还包括弹性层,所述弹性层设置在所述基板和所述金属层之间。
  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控制单元,所述控制单元与所述金属层、所述阴极层电性连接;
    所述控制单元用于检测所述显示面板未受到按压时,所述阴极层与所述金属层之间的第一电容;
    所述控制单元用于检测所述显示面板受到按压时,所述阴极层与所述金属层之间的第二电容;以及
    所述控制单元用于根据所述第一电容和所述第二电容,生成所述显示面板受到的按压力。
  3. 一种显示面板,其包括:金属层、基板、绝缘层 和阴极层;
    所述基板设置在所述金属层上;
    所述绝缘层设置在所述基板上,所述绝缘层和所述基板用于使所述金属层和所述阴极层彼此绝缘;
    所述阴极层设置在所述绝缘层上,所述阴极层与所述金属层之间形成电容,当所述显示面板受到按压时,所述阴极层与所述金属层之间的电容发生变化。
  4. 根据权利要求3所述的显示面板,其中,所述显示面板还包括控制单元,所述控制单元与所述金属层、所述阴极层电性连接;
    所述控制单元用于检测所述显示面板未受到按压时,所述阴极层与所述金属层之间的第一电容;
    所述控制单元用于检测所述显示面板受到按压时,所述阴极层与所述金属层之间的第二电容;以及
    所述控制单元用于根据所述第一电容和所述第二电容,生成所述显示面板受到的按压力。
  5. 根据权利要求4所述的显示面板,其中,所述阴极层包括多个触控单元,所述多个触控单元与所述控制单元电性连接;
    所述多个触控单元相互电性独立;
    所述控制单元用于根据所述多个触控单元与按压手指之间电容的变化,确定所述显示面板受按压的位置。
  6. 根据权利要求3所述的显示面板,其中,所述基板和所述金属层之间具有空隙。
  7. 根据权利要求3所述的显示面板,其中,所述显示面板还包括弹性层,所述弹性层设置在所述基板和所述金属层之间。
  8. 根据权利要求3所述的显示面板,其中,所述金属层接地。
  9. 根据权利要求3所述的显示面板,其中,所述绝缘层包括阳极层、发光层和像素定义层;
    所述阳极层设置在所述基板上;
    所述发光层设置在所述阳极层上;
    所述像素定义层设置在所述阳极层和所述发光层上。
  10. 根据权利要求3所述的显示面板,其中,所述显示面板还包括薄膜晶体管层和平坦层;
    所述薄膜晶体管层设置在所述基板上;
    所述平坦层设置在所述薄膜晶体管层上;
    所述绝缘层设置在所述平坦层上。
  11. 根据权利要求3所述的显示面板,其中,所述显示面板还包括封装层、偏光片和盖板;
    所述封装层设置在所述阴极层上;
    所述偏光片设置在所述封装层上;
    所述盖板设置在所述偏光片上。
  12. 一种显示装置,其包括显示面板,所述显示面板包括:
    金属层、基板、绝缘层和阴极层;
    所述基板设置在所述金属层上;
    所述绝缘层设置在所述基板上,所述绝缘层和所述基板用于使所述金属层和所述阴极层彼此绝缘;
    所述阴极层设置在所述绝缘层上,所述阴极层与所述金属层之间形成电容,当所述显示面板受到按压时,所述阴极层与所述金属层之间的电容发生变化。
  13. 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控制单元,所述控制单元与所述金属层、所述阴极层电性连接;
    所述控制单元用于检测所述显示面板未受到按压时,所述阴极层与所述金属层之间的第一电容;
    所述控制单元用于检测所述显示面板受到按压时,所述阴极层与所述金属层之间的第二电容;以及
    所述控制单元用于根据所述第一电容和所述第二电容,生成所述显示面板受到的按压力。
  14. 根据权利要求13所述的显示装置,其中,所述阴极层包括多个触控单元,所述多个触控单元与所述控制单元电性连接;
    所述多个触控单元相互电性独立;
    所述控制单元用于根据所述多个触控单元与按压手指之间电容的变化,确定所述显示面板受按压的位置。
  15. 根据权利要求12所述的显示装置,其中,所述基板和所述金属层之间具有空隙。
  16. 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弹性层,所述弹性层设置在所述基板和所述金属层之间。
  17. 根据权利要求12所述的显示装置,其中,所述金属层接地。
  18. 根据权利要求12所述的显示装置,其中,所述绝缘层包括阳极层、发光层和像素定义层;
    所述阳极层设置在所述基板上;
    所述发光层设置在所述阳极层上;
    所述像素定义层设置在所述阳极层和所述发光层上。
  19. 根据权利要求12所述的显示装置,其中,所述显示装置还包括薄膜晶体管层和平坦层;
    所述薄膜晶体管层设置在所述基板上;
    所述平坦层设置在所述薄膜晶体管层上;
    所述绝缘层设置在所述平坦层上。
  20. 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封装层、偏光片和盖板;
    所述封装层设置在所述阴极层上;
    所述偏光片设置在所述封装层上;
    所述盖板设置在所述偏光片上。
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