WO2017190388A1 - 外挂式触摸显示装置以及电子设备 - Google Patents

外挂式触摸显示装置以及电子设备 Download PDF

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Publication number
WO2017190388A1
WO2017190388A1 PCT/CN2016/083499 CN2016083499W WO2017190388A1 WO 2017190388 A1 WO2017190388 A1 WO 2017190388A1 CN 2016083499 W CN2016083499 W CN 2016083499W WO 2017190388 A1 WO2017190388 A1 WO 2017190388A1
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Prior art keywords
touch
capacitive
electrode layer
capacitive sensing
sensing
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PCT/CN2016/083499
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English (en)
French (fr)
Inventor
曹昌
蔡育徵
马长文
张洲
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武汉华星光电技术有限公司
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Priority to US15/117,521 priority Critical patent/US10185423B2/en
Publication of WO2017190388A1 publication Critical patent/WO2017190388A1/zh

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    • 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
    • G06F3/0412—Digitisers structurally integrated in a display
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    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
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    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
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    • G—PHYSICS
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    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
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    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
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    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
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    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
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    • G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position

Definitions

  • the present invention relates to the field of display technologies, and more particularly to an external touch display device having a pressure sensing touch function, and to an electronic device including the touch display device.
  • touch screens are particularly important.
  • touch sensing technologies mainly capacitive touch screens, which mainly determine the positional information of the finger touches (by obtaining the capacitance changes of the electrodes in the X-axis direction and the Y-axis direction respectively) to accurately calculate Touch the location of the point).
  • capacitive touch screens which mainly determine the positional information of the finger touches (by obtaining the capacitance changes of the electrodes in the X-axis direction and the Y-axis direction respectively) to accurately calculate Touch the location of the point).
  • the ideal touch screen not only needs to be able to sense the plane position information of the touch, but also needs to be able to sense the vertical pressure of the touch (Z-axis direction), thereby realizing the form of traditional interpersonal interaction from two.
  • the dimensional mode is changed to a three-dimensional mode.
  • touch display devices with pressure-sensitive touch functions are mostly implemented by adding a plurality of pressure sensors to a display (such as a liquid crystal display).
  • a display such as a liquid crystal display
  • This design requires a large change to the structural design of the display itself. The structure is more complicated and the process is more difficult.
  • Pressure sensors have limited spatial resolution, which can affect the display quality of the display when multiple pressure sensors are added.
  • the present invention provides an external touch display device with a pressure sensing touch function, which realizes a pressure sensing touch function in a touch display device with a simple structure, thereby reducing cost.
  • An external touch display device includes a capacitive touch screen disposed on a stack and a display module, wherein the capacitive touch screen is configured to sense a touch signal, and the display module includes a display panel and a backlight module disposed opposite to each other and configured to support a display panel and a middle frame of the backlight module, the display panel includes an array substrate, wherein the array substrate includes a pixel electrode layer including a plurality of pixel electrodes, wherein the pixel electrode layer is used as the first capacitor a sensing electrode, the side of the middle frame facing the backlight module is further a second capacitive sensing electrode is disposed, the second capacitive sensing electrode and the backlight module have a gap therebetween, and the first capacitive sensing electrode and the second capacitive sensing electrode form a capacitive sensing mechanism for sensing and applying to the The pressure signal on the capacitive touch screen; wherein, in the display time of one frame of the picture, the pixel electrode layer is used to time-divisionally transmit the
  • the material of the second capacitive sensing electrode is ITO.
  • the capacitive touch screen includes a touch driving electrode and a touch sensing electrode disposed in different layers, and the touch driving electrodes and the touch sensing electrodes are used to sense a touch signal applied on the capacitive touch screen.
  • the capacitive touch screen is connected with a touch driving chip, and the capacitive sensing mechanism is connected with a pressure sensing driving chip.
  • the touch driving chip and the pressure sensing driving chip are integrated in the same control chip.
  • the display panel further includes a filter substrate, the filter substrate is disposed opposite to the array substrate, and a liquid crystal layer is disposed between the array substrate and the filter substrate.
  • the array substrate includes a first glass substrate, and the first glass substrate is disposed with a pixel electrode layer and a common electrode layer adjacent to one side of the liquid crystal layer, and the pixel electrode layer and the common electrode layer are mutually connected. insulation.
  • the present invention also provides an electronic device including a housing and a touch display device packaged in the housing, wherein the touch display device is an external touch display device as described above.
  • the external touch display device provided by the embodiment of the present invention provides a second capacitor between the middle frame and the backlight module based on the existing two-dimensional touch function external touch display device. Sensing the electrode, and using the pixel electrode layer in the display panel as the first capacitive sensing electrode, the first capacitive sensing electrode and the second capacitive sensing electrode forming a capacitive sensing mechanism for sensing a pressure signal applied to the capacitive touch screen Thereby, the three-dimensional touch function is realized, and the structure is simple, easy to implement, and the production cost is low. Further, the material of the added second capacitive sensing electrode is transparent conductive ITO, and is disposed on the back surface of the backlight module, and realizes the three-dimensional touch function without affecting the display quality of the existing liquid crystal display device.
  • FIG. 1 is a schematic structural diagram of an external touch display device according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
  • the present embodiment provides an external touch display device.
  • the external touch display device includes a capacitive touch screen 1 and a display module 2 disposed in a stack.
  • the capacitive touch screen 1 includes a touch driving electrode 11 and a touch sensing electrode 12 disposed in different layers, and the touch driving electrode 11 and the touch sensing electrode 12 are used to sense a touch signal applied to the capacitive touch screen 1 .
  • the display module 2 includes a display panel 2a and a backlight module 2b and a middle frame 2c for supporting the display panel 2a and the backlight module 2b.
  • the backlight module 2b provides a display light source.
  • the display panel 2a is described such that the display panel 2a displays an image.
  • the display panel 2a includes an array substrate 21 and a filter substrate 22 disposed opposite to each other, and a liquid crystal layer 23 between the array substrate 21 and the filter substrate 22.
  • the array substrate 21 includes a first glass substrate 211 , and the first glass substrate 211 is sequentially disposed with a pixel electrode layer 212 and a common electrode layer 213 adjacent to one side of the liquid crystal layer 23 .
  • a first polarizer 214 is disposed on a side of the first glass substrate 211 adjacent to the backlight module 2b; wherein the pixel electrode layer 212 and the common electrode layer 213 are insulated from each other (the insulating structure is not shown in the drawing) a conductive structure layer, the pixel electrode layer 212 comprising a plurality of pixel electrodes arranged in an array.
  • the filter substrate 22 includes a second glass substrate 221 and a color photoresist layer 222 disposed on a side of the second glass substrate 222 adjacent to the liquid crystal layer 23, wherein
  • the color photoresist layer 222 includes a red photoresist R, a green photoresist G, and a blue photoresist B.
  • the second glass substrate 221 is disposed on a side of the capacitive touch screen 1 with a second polarizer 223. Further, the array substrate 21 is further provided with a data line, a scan line, a thin film transistor array and the like, and the filter substrate 22 is further provided with a black matrix or the like. These ones The structure is not closely related to the structure to be improved by the present invention, and thus is not shown in the drawings and will not be described in detail herein.
  • a second capacitive sensing electrode 3 , the second capacitive sensing electrode 3 and the backlight module 2 b are further disposed on a side of the middle frame 2 c facing the backlight module 2 b .
  • the pixel electrode layer 212 is used as the first capacitive sensing electrode 4, and the first capacitive sensing electrode 4 and the second capacitive sensing electrode 3 constitute a capacitive sensing mechanism C1. A pressure signal applied to the capacitive touch screen 1 of the touch display device is sensed.
  • the pixel electrode layer 212 is multiplexed into the first capacitive sensing electrode 4, the pixel electrode layer 212 is used to transmit the pixel voltage signal and the pressure sensing signal in a time-sharing manner within a display time of one frame.
  • the capacitive touch screen 1 is connected with a touch driving chip 5, the display panel 2a is connected with a panel driving chip (not shown in the drawing), and the capacitive sensing mechanism C1 is connected with the pressure sensing driving chip 6.
  • the touch driving chip 5, the panel driving chip and the pressure sensing driving chip 6 may be integrated into one control chip and connected to corresponding components through a flexible circuit board (FPC).
  • the touch driving chip 5 drives the touch driving electrodes 11 and the touch sensing electrodes 12 of the capacitive touch screen 1 to sense the position of the touch. Further, in the display time of one frame: when the timing is displayed, the pixel electrode layer 212 (the first capacitive sensing electrode 4) transmits a pixel voltage signal, and the display panel displays the image.
  • the pixel electrode layer 212 (the first capacitive sensing electrode 4) transmits a pressure sensing signal, and when the touched finger presses the capacitive touch screen 1, between the first capacitive sensing electrode 4 and the second capacitive sensing electrode 3
  • the distance between the first capacitive sensing electrode 4 and the second capacitive sensing electrode 3 constituting the capacitive sensing mechanism C1 changes accordingly.
  • the pressure sensing driving chip 6 acquires After the capacitance change signal, the pressure information of the pressing can be obtained, and the pressure sensing touch function is realized, thereby realizing the three-dimensional touch function of the touch display device.
  • the present invention also provides an electronic device, as shown in FIG. 2, the electronic device includes a housing 100 and a touch display device 200 packaged in the housing 100, wherein the touch display device 200 is provided by the above embodiment External touch display device.
  • the electronic device may be a mobile phone, a tablet computer, a smart watch, a smart speaker, or the like.
  • the touch display device provided by the embodiment of the present invention provides a second capacitive sensing electrode between the middle frame and the backlight module based on the external two-dimensional touch function external touch display device.
  • the two capacitive sensing electrodes and the pixel electrode layer in the display panel constitute a capacitive sensing mechanism, which can be sensed
  • the pressure signal should be applied to the display panel, thereby realizing a three-dimensional touch function, which is simple in structure, easy to implement, and low in production cost.
  • the added second capacitive sensing electrode is disposed on the back surface of the backlight module, and realizes the three-dimensional touch function without affecting the display quality of the existing display device.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Human Computer Interaction (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Geometry (AREA)
  • Liquid Crystal (AREA)
  • Position Input By Displaying (AREA)

Abstract

一种外挂式触摸显示装置，包括呈叠层设置的电容触摸屏（1）和显示模组（2），显示模组（2）包括相对设置的显示面板（2a）和背光模组（2b）以及用于支撑显示面板（2a）和背光模组（2b）的中框（2c），所述显示面板（2a）包括阵列基板（21），阵列基板（21）中设置包括多个像素电极的像素电极层（212），所述像素电极层（212）被用于作为第一电容感应电极（4），所述中框（2c）的朝向背光模组（2b）的一侧还设置有第二电容感应电极（3），第二电容感应电极（3）与背光模组（2b）之间具有间隙，所述第一电容感应电极（4）与第二电容感应电极（3）构成电容感应机构（C1），用于感应施加于所述电容触摸屏（1）上的压力信号；其中，在一帧画面的显示时间内，所述像素电极层（212）用于分时地传递像素电压信号和压力感应信号。

Description

外挂式触摸显示装置以及电子设备 技术领域
本发明涉及显示技术领域，尤其是一种具有压力感应触控功能的外挂式触摸显示装置，还涉及包含该触摸显示装置的电子设备。
背景技术
随着移动式电子产品设备技术的发展和进步，触摸屏的使用显得尤为重要。目前有许多不同的触控感应技术，主要为电容式触摸屏，其主要是通过识别手指触摸的平面位置信息(通过获得该点分别在X轴方向电极和Y轴方向电极的电容变化，以精确计算触摸点的位置)。随着人们对触摸技术的要求不断提高，理想中的触摸屏不仅需要能够感应触摸的平面位置信息，还需要能够感应到触摸的垂直压力(Z轴方向)，从而实现传统的人际交互的形式从二维模式转变为三维模式。
但目前，具有压力感应触控功能的触摸显示装置大多是在显示器(如液晶显示器)中额外增加多个压力传感器来实现，这种设计，需要对显示器本身的结构设计做出较大的改动，且结构比较复杂，工艺难度较大。压力传感器具有有限的空间分辨率，当增加多个压力传感器时，会影响显示器的显示品质。
发明内容
有鉴于此，本发明提供了一种具有压力感应触控功能的外挂式触摸显示装置，使用简单的结构在触摸显示装置中实现压力感应触控功能，降低成本。
为了达到上述目的，本发明采用了如下技术方案：
一种外挂式触摸显示装置，包括呈叠层设置的电容触摸屏和显示模组，所述电容触摸屏用于感应触摸信号，所述显示模组包括相对设置的显示面板和背光模组以及用于支撑所述显示面板和背光模组的中框，所述显示面板包括阵列基板，所述阵列基板中设置包括多个像素电极的像素电极层，其中，所述像素电极层被用于作为第一电容感应电极，所述中框的朝向所述背光模组的一侧还 设置有第二电容感应电极，所述第二电容感应电极与所述背光模组之间具有间隙，所述第一电容感应电极与第二电容感应电极构成电容感应机构，用于感应施加于所述电容触摸屏上的压力信号；其中，在一帧画面的显示时间内，所述像素电极层用于分时地传递像素电压信号和压力感应信号。
其中，所述第二电容感应电极的材料为ITO。
其中，所述电容触摸屏包括异层设置的触摸驱动电极和触摸感应电极，所述触摸驱动电极和触摸感应电极用于感应施加于所述电容触摸屏上的触摸信号。
其中，所述电容触摸屏连接有触摸驱动芯片，所述电容感应机构连接有压力感应驱动芯片。
其中，所述触摸驱动芯片和所述压力感应驱动芯片集成于同一控制芯片中。
其中，所述显示面板还包括滤光基板，所述滤光基板与所述阵列基板相对设置，所述阵列基板和所述滤光基板之间设置有液晶层。
其中，所述阵列基板包括第一玻璃基板，所述第一玻璃基板靠近于所述液晶层的一侧依次设置有像素电极层和公共电极层，所述像素电极层和公共电极层之间相互绝缘。
本发明还提供了一种电子设备，该电子设备包括外壳以及封装于所述外壳中的触摸显示装置，其中，所述触摸显示装置为如上所述的外挂式触摸显示装置。
相比于现有技术，本发明实施例提供的外挂式触摸显示装置，在现有二维触摸功能的外挂式触摸显示装置的基础上，通过在中框和背光模组之间设置第二电容感应电极，并且将显示面板中的像素电极层用于作为第一电容感应电极，第一电容感应电极与第二电容感应电极构成电容感应机构，用于感应施加于所述电容触摸屏上的压力信号，从而实现了三维触摸功能，并且其结构简单，易于实现，生产成本低。进一步地，增加的第二电容感应电极的材料为透明导电的ITO，并且是设置在背光模组的背面，在实现三维触摸功能的同时不影响现有液晶显示装置的显示品质。
附图说明
图1是本发明实施例提供的外挂式触摸显示装置的结构示意图；
图2是本发明实施例提供的电子设备的结构示意图。
具体实施方式
下面将结合附图以及具体实施例，对本发明实施例中的技术方案进行详细地描述，显然，所描述的实施例仅仅是本发明一部分实例，而不是全部实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护范围。
在此，还需要说明的是，为了避免因不必要的细节而模糊了本发明，在附图中仅仅示出了与根据本发明的方案密切相关的结构和/或处理步骤，而省略了与本发明关系不大的其他细节。
本实施例提供了一种外挂式触摸显示装置，如图1所示，所述外挂式触摸显示装置包括呈叠层设置的电容触摸屏1和显示模组2。
其中，所述电容触摸屏1包括异层设置的触摸驱动电极11和触摸感应电极12，所述触摸驱动电极11和触摸感应电极12用于感应施加于电容触摸屏1上的触摸信号。
其中，所述显示模组2包括相对设置的显示面板2a和背光模组2b以及用于支撑所述显示面板2a和背光模组2b的中框2c，所述背光模组2b提供显示光源给所述显示面板2a，以使所述显示面板2a显示影像。
其中，所述显示面板2a包括相对设置的阵列基板21和滤光基板22以及位于所述阵列基板21和滤光基板22之间的液晶层23。具体地，参阅图1，所述阵列基板21包括第一玻璃基板211，所述第一玻璃基板211靠近于所述液晶层23的一侧依次设置有像素电极层212和公共电极层213，所述第一玻璃基板211靠近于所述背光模组2b的一侧设置有第一偏光片214；其中，所述像素电极层212和公共电极层213为相互绝缘(附图中未示出绝缘结构)的导电结构层，所述像素电极层212包括多个阵列设置的像素电极。所述滤光基板22包括第二玻璃基板221和彩色光阻层222，所述彩色光阻层222设置于所述第二玻璃基板222靠近于所述液晶层23的一侧，其中，所述彩色光阻层222包括红色光阻R、绿色光阻G和蓝色光阻B；所述第二玻璃基板221靠近于所述电容触摸屏1的一侧设置有第二偏光片223。进一步地，所述阵列基板21中还设置有数据线、扫描线以及薄膜晶体管阵列等，所述滤光基板22中还设置有黑色矩阵等。这些 结构与本发明所要改进的结构关联性不是很密切，因此附图中没有示出，在此也不再详细说明。
其中，如图1所示，在所述中框2c的朝向所述背光模组2b的一侧还设置有第二电容感应电极3，所述第二电容感应电极3与所述背光模组2b之间具有间隙H1，间隙H1应当要保证触摸显示装置被按压时具有足够的形变空间；其中，第二电容感应电极3的材料为氧化铟锡(ITO)。进一步地，在本实施例中，所述像素电极层212被用于作为第一电容感应电极4，所述第一电容感应电极4与所述第二电容感应电极3构成电容感应机构C1，用于感应施加于所述触摸显示装置的电容触摸屏1上的压力信号。其中，由于像素电极层212被复用为第一电容感应电极4，因此在一帧画面的显示时间内，所述像素电极层212用于分时地传递像素电压信号和压力感应信号。
具体地，所述电容触摸屏1连接有触摸驱动芯片5，所述显示面板2a连接有面板驱动芯片(附图中未示)，所述电容感应机构C1连接有压力感应驱动芯片6。其中，触摸驱动芯片5、面板驱动芯片和压力感应驱动芯片6可以集成到一个控制芯片中，并通过柔性线路板(FPC)与对应的各个组件连接。触摸驱动芯片5驱动电容触摸屏1的触摸驱动电极11和触摸感应电极12感应出触摸的位置。并且，在一帧画面的显示时间内：显示时序时，所述像素电极层212(第一电容感应电极4)传递像素电压信号，显示面板显示影像。触控时序时，所述像素电极层212(第一电容感应电极4)传递压力感应信号，当触摸的手指按压电容触摸屏1，第一电容感应电极4与所述第二电容感应电极3之间的距离变小，所述第一电容感应电极4与第二电容感应电极3构成电容感应机构C1的电容相应地发生变化，通过建立电容变化值与压力值的相互关联，压力感应驱动芯片6获取电容变化信号后即可获得按压的压力信息，实现压力感应触控功能，从而使得该触摸显示装置实现了三维触摸功能。
本发明还提供了一种电子设备，如图2所示，该电子设备包括外壳100以及封装于所述外壳100中的触摸显示装置200，其中，所述触摸显示装置200为如上实施例所提供的外挂式触摸显示装置。其中，所述电子设备可以是手机、平板电脑、智能手表、智能音箱等等。
综上所述，本发明实施例提供的触摸显示装置，在现有二维触摸功能的外挂式触摸显示装置的基础上，通过在中框和背光模组之间设置第二电容感应电极，第二电容感应电极与显示面板中的像素电极层构成电容感应机构，可以感 应施加于显示面板上的压力信号，从而实现了三维触摸功能，其结构简单，易于实现，生产成本低。进一步地，增加的第二电容感应电极是设置在背光模组的背面，在实现三维触摸功能的同时不影响现有显示装置的显示品质。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
显然，本发明的保护范围并不局限于上诉的具体实施方式，本领域的技术人员可以对发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (14)

  1. 一种外挂式触摸显示装置，包括呈叠层设置的电容触摸屏和显示模组，所述电容触摸屏用于感应触摸信号，所述显示模组包括相对设置的显示面板和背光模组以及用于支撑所述显示面板和背光模组的中框，所述显示面板包括阵列基板，所述阵列基板中设置包括多个像素电极的像素电极层，其中，所述像素电极层被用于作为第一电容感应电极，所述中框的朝向所述背光模组的一侧还设置有第二电容感应电极，所述第二电容感应电极与所述背光模组之间具有间隙，所述第一电容感应电极与第二电容感应电极构成电容感应机构，用于感应施加于所述电容触摸屏上的压力信号；
    其中，在一帧画面的显示时间内，所述像素电极层用于分时地传递像素电压信号和压力感应信号。
  2. 根据权利要求1所述的外挂式触摸显示装置，其中，所述第二电容感应电极的材料为ITO。
  3. 根据权利要求1所述的外挂式触摸显示装置，其中，所述电容触摸屏包括异层设置的触摸驱动电极和触摸感应电极，所述触摸驱动电极和触摸感应电极用于感应施加于所述电容触摸屏上的触摸信号。
  4. 根据权利要求1所述的外挂式触摸显示装置，其中，所述电容触摸屏连接有触摸驱动芯片，所述电容感应机构连接有压力感应驱动芯片。
  5. 根据权利要求4所述的外挂式触摸显示装置，其中，所述触摸驱动芯片和所述压力感应驱动芯片集成于同一控制芯片中。
  6. 根据权利要求1所述的外挂式触摸显示装置，其中，所述显示面板还包括滤光基板，所述滤光基板与所述阵列基板相对设置，所述阵列基板和所述滤光基板之间设置有液晶层。
  7. 根据权利要求6所述的外挂式触摸显示装置，其中，所述阵列基板包括第一玻璃基板，所述第一玻璃基板靠近于所述液晶层的一侧依次设置有像素电极层和公共电极层，所述像素电极层和公共电极层之间相互绝缘。
  8. 一种电子设备，包括外壳以及封装于所述外壳中的触摸显示装置，其特征在于，所述触摸显示装置包括呈叠层设置的电容触摸屏和显示模组，所述电 容触摸屏用于感应触摸信号，所述显示模组包括相对设置的显示面板和背光模组以及用于支撑所述显示面板和背光模组的中框，所述显示面板包括阵列基板，所述阵列基板中设置包括多个像素电极的像素电极层，其中，所述像素电极层被用于作为第一电容感应电极，所述中框的朝向所述背光模组的一侧还设置有第二电容感应电极，所述第二电容感应电极与所述背光模组之间具有间隙，所述第一电容感应电极与第二电容感应电极构成电容感应机构，用于感应施加于所述电容触摸屏上的压力信号；
    其中，在一帧画面的显示时间内，所述像素电极层用于分时地传递像素电压信号和压力感应信号。
  9. 根据权利要求8所述的电子设备，其中，所述第二电容感应电极的材料为ITO。
  10. 根据权利要求8所述的电子设备，其中，所述电容触摸屏包括异层设置的触摸驱动电极和触摸感应电极，所述触摸驱动电极和触摸感应电极用于感应施加于所述电容触摸屏上的触摸信号。
  11. 根据权利要求8所述的电子设备，其中，所述电容触摸屏连接有触摸驱动芯片，所述电容感应机构连接有压力感应驱动芯片。
  12. 根据权利要求11所述的电子设备，其中，所述触摸驱动芯片和所述压力感应驱动芯片集成于同一控制芯片中。
  13. 根据权利要求8所述的电子设备，其中，所述显示面板还包括滤光基板，所述滤光基板与所述阵列基板相对设置，所述阵列基板和所述滤光基板之间设置有液晶层。
  14. 根据权利要求13所述的电子设备，其中，所述阵列基板包括第一玻璃基板，所述第一玻璃基板靠近于所述液晶层的一侧依次设置有像素电极层和公共电极层，所述像素电极层和公共电极层之间相互绝缘。
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