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WO2017045362A1 - 触摸屏及其压力触控检测方法 - Google Patents

触摸屏及其压力触控检测方法 Download PDF

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Publication number
WO2017045362A1
WO2017045362A1 PCT/CN2016/074097 CN2016074097W WO2017045362A1 WO 2017045362 A1 WO2017045362 A1 WO 2017045362A1 CN 2016074097 W CN2016074097 W CN 2016074097W WO 2017045362 A1 WO2017045362 A1 WO 2017045362A1
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Prior art keywords
touch
electrode
touch screen
pressure
module
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PCT/CN2016/074097
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English (en)
French (fr)
Inventor
王雪飞
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
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Priority to US15/521,209 priority Critical patent/US20170357346A1/en
Publication of WO2017045362A1 publication Critical patent/WO2017045362A1/zh
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • G06F3/04142—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position the force sensing means being located peripherally, e.g. disposed at the corners or at the side of a touch sensing plate
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

Definitions

  • the present invention belongs to the field of display technologies, and in particular, to a touch screen and a pressure touch detection method thereof.
  • the touch screen has become the main human-computer interaction means for personal mobile communication devices and integrated information terminals, such as tablet computers, smart phones, and super-notebook computers, due to its advantages of ease of operation, intuitiveness, and flexibility.
  • the touch screen can be divided into four main types: resistive touch screen, capacitive touch screen, infrared touch screen and surface wave (SAW) touch screen.
  • resistive touch screen capacitive touch screen
  • capacitive touch screen has multi-touch function, fast response time, long service life and high transmittance, and the user experience is superior.
  • the yield rate is significantly improved, and the price of the capacitive screen is decreasing.
  • it has become the main technology for touch interaction of small and medium size information terminals.
  • Capacitive touch screens have the disadvantage of being susceptible to environmental interference. It is difficult to accurately capture the touch behavior that occurs when using gloves and fingers with water touch or when it is used outdoors in rain or snow. At the same time, the capacitive touch screen has a problem that the touch is mishandled when the finger is suspended above the touch screen due to high sensitivity. In addition, the capacitive touch screen only senses the touch position of the plane (X, Y-axis two-dimensional space) where the screen is located, and it is difficult to support the touch parameter perception perpendicular to the screen plane (Z-axis).
  • the technical problem to be solved by the present invention includes providing a touch screen for realizing three-dimensional multi-point touch and a pressure touch detecting method thereof for the above problems existing in the existing touch screen.
  • a technical solution adopted to solve the technical problem of the present invention is a touch screen including a touch panel and a frame surrounding a side of the touch panel, the touch panel including a display module and a touch module on a light emitting surface side of the display module, the touch screen having a display area and a non-display area surrounding the display area, and the touch module corresponding to the non-display area and At least one pressure sensor is disposed between the frames; wherein
  • the pressure sensor includes a first electrode, a second electrode, and a layer of a piezoresistive material disposed between the first electrode and the second electrode; the first electrode is in the same layer as the touch electrode on the touch module Provided and the same material; the second electrode is composed of a portion of the frame that is in contact with the layer of piezoresistive material and on the opposite side of the first electrode, and the first electrode and the second electrode are both The touch chip is connected.
  • the material of the piezoresistive material layer is a composite piezoresistive material or a semiconductor piezoresistive material.
  • the pressure sensor is coupled to the frame by a conductive double-sided tape.
  • an optical glue for fixing the two is disposed between the display module and the touch module.
  • each of the pressure sensors is connected to the same touch chip through a connection line.
  • the material of the first electrode is indium tin oxide.
  • the touch screen is any one of a mobile phone, a pad, and a notebook computer.
  • the technical solution for solving the technical problem of the present invention is a pressure touch detection method for a touch screen, wherein the touch screen is the touch screen, and the pressure touch detection method includes:
  • the pressure used for the touch is detected according to the change in the distance between the first electrode and the second electrode.
  • the step of detecting the pressure used for the touch according to the change of the distance between the touch module and the frame corresponding to the non-display area comprises:
  • the pressure data is determined by detecting the resistance change of the piezoresistive material layer between the first electrode and the frame, and the pressure used for the touch is determined.
  • At least one pressure sensor is disposed between the touch module corresponding to the non-display area and the frame, wherein one end of the pressure sensor is connected to the frame (metal, that is, ground) The other end is connected to the first electrode, and the first electrode and the frame are connected to the touch chip, and the touch pressure is detected by detecting a change of the pressure sensor, wherein the touch pressure is perpendicular to the touch screen body.
  • the pressure that is, the pressure detection on the Z-axis of the touch screen, that is, the touch screen of the embodiment can realize a three-dimensional (X, Y, Z-axis) multi-point touch function.
  • the first electrode is disposed in the same layer as the touch electrode and has the same material, that is, the first electrode can be formed by one patterning process with one of the driving electrode and the sensing electrode, thereby saving cost.
  • FIG. 1 is a schematic diagram of a touch screen according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic view showing a piezoresistive material of a touch panel according to Embodiment 1 of the present invention
  • Figure 3 is a schematic view of the piezoresistive material of Figure 2 after being pressed
  • FIG. 4 is a schematic diagram of a touch screen and a touch chip according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic diagram of a first electrode and a touch electrode of the touch screen according to Embodiment 1 of the present invention.
  • the reference numerals are: 1, display module; 11, backlight; 12, display panel; 2, touch module; 21, drive electrode; 22, sensing electrode; 3, frame; 4, piezoresistive material layer; 5, the first electrode; 6, optical glue.
  • the embodiment provides a touch screen including a touch surface.
  • a touch panel comprising a display module 1 (including a backlight 11 and a display panel 12) and a touch module 2 on a light emitting surface side of the display module 1
  • the touch screen has a display area and a non-display area surrounding the display area, and at least one pressure sensor is disposed between the touch module 2 and the frame 3 corresponding to the non-display area;
  • the pressure sensor includes a first electrode 5, a second electrode, and a layer of piezoresistive material 4 (corresponding to a resistor) disposed between the first electrode 5 and the second electrode; the first electrode 5 and the touch
  • the touch electrodes on the module are disposed in the same layer and have the same material; the second electrode is formed by the frame 3 contacting the piezoresistive material layer 4 and on the opposite side of the first electrode 5, and
  • the first electrode 5 and the second electrode are both connected to the touch chip.
  • the touch screen of the embodiment has a traditional multi-point capacitive touch screen body in the display area, and the capacitive touch screen body is an OGS mode touch screen, which is an entity that directly interacts with the user, and the outer surface (light-emitting surface) is an anti-friction protective glass ( Cover Glass), the touch electrode is disposed on the inner surface of the protection glass (the touch electrode includes a plurality of driving electrodes 21 and a plurality of sensing electrodes 22 respectively made of a transparent conductive material along the X-axis and the Y-axis) to form an interaction A capacitance matrix that detects changes in capacitance caused by human touch.
  • At least one pressure sensor is disposed between the touch module 2 and the frame 3 corresponding to the non-display area, wherein one end of the pressure sensor and the frame 3 (metal The other end is connected to the first electrode 5, and the first electrode 5 and the frame 3 are connected to the touch chip, and the touch pressure is detected by detecting a change of the pressure sensor, wherein the touch pressure is It is relative to the pressure in the vertical direction of the touch screen panel, that is, the pressure detection on the Z-axis of the touch screen, that is to say, the touch screen of the embodiment can realize a three-dimensional (X, Y, Z-axis) multi-point touch function.
  • the first electrode 5 is disposed in the same layer as the touch electrode and has the same material, that is, the first electrode 5 can be formed by one patterning process with one of the driving electrode 21 and the sensing electrode 22, thereby save costs.
  • the piezoresistive material layer in this embodiment is made of a composite piezoresistive material or a semiconductor piezoresistive material.
  • a piezoresistive material is disposed between the first electrode 5 and the frame 3 (ie, the second electrode), and the piezoresistive material is made of a composite piezoresistive material.
  • the layer contains several conductive particles inside. (metal pellets, graphene, carbon spheres, silicon spheres, etc.).
  • the composite piezoresistive material can be electrically conductive and have a certain resistance R.
  • the piezoresistive material compresses, the distance between the plates decreases, and the distance of the inner conductive balls becomes smaller, thereby making the resistance smaller, that is, R- ⁇ R.
  • the magnitude of the pressure is detected by measuring the change in electrical resistance between the two electrodes.
  • the pressure sensor is connected to the frame 3 through a conductive double-sided tape so that there is no gap between the pressure sensor and the frame 3, and the two are fixed to each other.
  • an optical glue 6 (OCA glue) for fixing the two is disposed between the display module 1 of the touch panel and the touch module 2 .
  • the optical adhesive 6 has good light transmittance and a high transmittance.
  • a pressure sensor is disposed at four corner positions of the touch screen, that is, the touch screen includes four pressure sensors.
  • the touch screen includes four pressure sensors.
  • the four pressure sensors will be under pressure, but since the relative positions of the four pressure sensors and the touch points are not necessarily the same, The pressure of the pressure sensors is different. Therefore, it is necessary to integrate the pressures of the four pressure sensors to obtain a value to enlarge the picture. The greater the pressure, the larger the picture display.
  • the position and the number of the pressure sensors in this embodiment are not limited to the foregoing manners, and the number of pressure sensors is preferably as large as possible, but it is still necessary to set the pressure sensors in consideration of cost and demand.
  • the material of the first electrode 5 in this embodiment is indium tin oxide (InGaSnO), that is, the material of the touch electrode in this embodiment is also indium tin oxide (InGaSnO); of course, indium gallium oxide can also be used.
  • Transparent conductive materials such as zinc (IGZO), indium zinc oxide (IZO), indium tin oxide (InSnO), nano silver, graphene, carbon nanotubes, and the like.
  • the touch electrode can also adopt a metal mesh structure.
  • the touch screen of this embodiment is applicable to a small-sized touch display device, and may be any one of a mobile phone, a pad, and a notebook computer, or may be another display product.
  • the embodiment provides a pressure touch detection method for a touch screen.
  • the touch screen can be the touch screen of the first embodiment.
  • the pressure touch detection method includes:
  • the pressure used for the touch is detected based on the change in distance from the one electrode 5 and the frame 3 (second electrode).
  • the piezoresistive material layer is made of a piezoresistive material
  • the step of detecting the pressure used for the touch includes:
  • the pressure change is calculated by detecting the resistance change of the piezoresistive material between the first electrode 5 and the frame 3, and the pressure used for the touch is determined.
  • a piezoresistive sensor is used to detect the magnitude of the touch pressure, and the touch screen can realize a three-dimensional (X, Y, Z-axis) multi-point touch function.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

提供了一种触摸屏及其压力触控检测方法，属于显示技术领域。触摸屏包括触控面板和包围触控面板的侧面的框架（3），触控面板包括显示模组（1）和位于显示模组（1）出光面侧的触控模组（2），触摸屏具有显示区和环绕显示区的非显示区，在与非显示区对应的触控模组（2）和框架（3）之间设置有至少一个压力传感器；其中，压力传感器包括第一电极（5）、第二电极，以及设置在第一电极（5）和第二电极之间的压阻材料层（4）；第一电极（5）与触控模组（2）上的触控电极同层设置且材料相同；第二电极由框架（3）与压阻材料层（4）接触并且处在第一电极（5）对侧的部分构成，且第一电极（5）和第二电极均与触控芯片连接。

Description

触摸屏及其压力触控检测方法 技术领域
本发明属于显示技术领域，具体涉及一种触摸屏及其压力触控检测方法。
背景技术
触摸屏因具有易操作性、直观性和灵活性等优点，已成为个人移动通信设备和综合信息终端，如平板电脑、智能手机，以及超级笔记本电脑的主要人机交互手段。触摸屏根据不同的触控原理可分为电阻触摸屏、电容触摸屏、红外触摸屏和表面波(SAW)触摸屏等四种主要类型。其中，电容触摸屏具有多点触控的功能，反应时间快，使用寿命长和透过率较高，用户使用体验优越，同时随着工艺的逐步成熟，良品率得到显著提高，电容屏价格日益降低，目前已成为中小尺寸信息终端触控交互的主要技术。
电容触摸屏存在易受环境干扰的缺点，对于带着手套和手指带水触控的情况，或者在下雨、下雪等天气的室外使用时，难以准确捕获发生的触控行为。同时，电容触摸屏存在由于灵敏度较高导致手指悬空在触摸屏上方时引起触摸误操作的问题。此外，电容触摸屏仅感知屏体所在平面(X,Y轴二维空间)的触摸位置，难以支持垂直于屏体平面(Z轴)的触摸参数感知。
发明内容
本发明所要解决的技术问题包括，针对现有的触摸屏存在的上述问题，提供一种实现三维多点式触控的触摸屏及其压力触控检测方法。
解决本发明技术问题所采用的技术方案是一种触摸屏，包括触控面板和包围所述触控面板的侧面的框架，所述触控面板包括 显示模组和位于显示模组出光面侧的触控模组，所述触摸屏具有显示区和环绕所述显示区的非显示区，在与所述非显示区对应的所述触控模组和所述框架之间设置有至少一个压力传感器；其中，
所述压力传感器包括第一电极、第二电极，以及设置在第一电极和第二电极之间的压阻材料层；所述第一电极与所述触控模组上的触控电极同层设置且材料相同；所述第二电极由所述框架与所述压阻材料层接触并且处在所述第一电极对侧的部分构成，且所述第一电极和所述第二电极均与所述触控芯片连接。
优选的是，所述压阻材料层的材料为复合压阻材料或者半导体压阻材料。
优选的是，所述压力传感器通过导电双面胶与所述框架连接。
优选的是，所述显示模组与所述触控模组之间设置有用于将两者固定的光学胶。
优选的是，在所述触摸屏的每个边角位置均有一个所述压力传感器。
进一步优选的是，各个所述压力传感器通过连接线均连接同一个触控芯片。
优选的是，所述第一电极的材料为氧化铟锡。
优选的是，所述触摸屏为手机、Pad、笔记本电脑中的任意一种。
解决本发明技术问题所采用的技术方案是一种触摸屏的压力触控检测方法，所述触摸屏为上述的触摸屏，所述压力触控检测方法包括：
根据第一电极与第二电极之间的距离变化，检测触控所用的压力。
优选的是，所述根据与非显示区对应的触控模组与框架之间的距离变化，检测触控所用的压力的步骤包括：
通过检测第一电极与所述框架之间的压阻材料层的电阻变化，并根据该电阻变化计算出压力数据，以判断触控所用的压力。
本发明具有如下有益效果：
在本发明的触摸屏中，在与所述非显示区对应的所述触控模组和所述框架之间设置有至少一个压力传感器，其中压力传感器的一端与框架(金属，也即接地)连接，另一端与第一电极连接，第一电极和框架均是与触控芯片连接的，通过检测压力传感器的变化，以检测触控压力，其中该触控压力是相对于触摸屏屏体垂直方向上的压力，也即触摸屏Z轴上的压力检测，也就说本实施例的触摸屏可以实现三维(X、Y、Z轴)多点式触摸功能。而且，在本发明中第一电极与触控电极同层设置且材料相同，也就是说第一电极可以与驱动电极和感应电极中的一者采用一次构图工艺形成，因此可以节约成本。
附图说明
图1为本发明的实施例1的触摸屏的示意图；
图2为本发明的实施例1的触摸屏的压阻材料的示意图；
图3为图2的压阻材料被按压后的示意图；
图4为本发明的实施例1的触摸屏与触控芯片连接的示意图；
图5为本发明的实施例1的触摸屏的第一电极与触控电极的示意图。
其中附图标记为：1、显示模组；11、背光源；12、显示面板；2、触控模组；21、驱动电极；22、感应电极；3、框架；4、压阻材料层；5、第一电极；6、光学胶。
具体实施方式
为使本领域技术人员更好地理解本发明的技术方案，下面结合附图和具体实施方式对本发明作进一步详细描述。
实施例1：
结合图1和4所示，本实施例提供一种触摸屏，包括触控面 板和包围所述触控面板的侧面的框架3，所述触控面板包括显示模组1(包括背光源11和显示面板12)和位于显示模组1出光面侧的触控模组2，所述触摸屏具有显示区和环绕所述显示区的非显示区，在与所述非显示区对应的所述触控模组2和所述框架3之间设置有至少一个压力传感器；其中，所述压力传感器包括第一电极5、第二电极，以及设置在第一电极5和第二电极之间的压阻材料层4(相当于一个电阻)；所述第一电极5与所述触控模组上的触控电极同层设置且材料相同；所述第二电极由所述框架3与所述压阻材料层4接触并且处在所述第一电极5对侧的部分构成，且所述第一电极5和所述第二电极均与所述触控芯片连接。
本实施例的触摸屏在显示区具有传统的多点式电容触摸屏体，该电容触摸屏体为OGS模式的触摸屏，是与用户直接交互的实体，其外表面(出光面)为抗磨擦的保护玻璃(Cover Glass)，在保护玻璃的内表面设置有触控电极(触控电极包括沿X轴和Y轴分别设置由透明导电材料制成的多条驱动电极21和多条感应电极22)，形成交互电容矩阵，实现对人体触摸引起的电容变化进行检测。特别的，在本实施例的中，在与所述非显示区对应的所述触控模组2和所述框架3之间设置有至少一个压力传感器，其中压力传感器的一端与框架3(金属，也即接地)连接，另一端与第一电极5连接，第一电极5和框架3均是与触控芯片连接的，通过检测压力传感器的变化，以检测触控压力，其中该触控压力是相对于触摸屏屏体垂直方向上的压力，也即触摸屏Z轴上的压力检测，也就说本实施例的触摸屏可以实现三维(X、Y、Z轴)多点式触摸功能。而且，在实施例中第一电极5的与触控电极同层设置且材料相同，也就是说第一电极5可以与驱动电极21和感应电极22中的一者采用一次构图工艺形成，因此可以节约成本。
优选的，本实施例中的压阻材料层采用复合压阻材料或者半导体压阻材料制成。具体的，结合图2和3所示，在本实施例中，将压阻材料设置在第一电极5与框架3(即第二电极)之间，以复合压阻材料制成的压阻材料层为例，其内部含有若干个导电粒子 (金属小球，石墨烯，碳球，硅球等等)。复合压阻材料可以导电，并且具有一定电阻R。当有压力F作用在极板上的时候，压阻材料发生压缩，两极板间距离缩小，内部导电球的距离变小，从而使得电阻变小，即R-ΔR。通过测量两电极之间的电阻的变化，来检测压力的大小。
优选的，在本实施例中压力传感器通过导电双面胶与所述框架3连接，以使压力传感器与框架3之间无缝隙，且两者相互固定。
优选的，触控面板的显示模组1与所述触控模组2之间设置有用于将两者固定的光学胶6(OCA胶)。光学胶6具有良好的透光性，且透过率较高。
如图5所示，作为本实施例的一种优选实施方式，在触摸屏的四个边角位置均设置有一个压力传感器，即该触摸屏包括四个压力传感器。具体的，当相对触摸屏上的一个图片进行放大时，用户通过手指等点击图片，四个压力传感器将会受到压力，但是由于四个压力传感器与触控点的相对位置不一定相同，故对四个压力传感器的压力也就不同，因此需要对四个压力传感器所受到的压力进行整合，得到一个数值，以对图片进行放大，压力越大，图片显示越大。当然，本实施例中的压力传感器的位置以及数量均不局限于前述方式，压力传感器的个数越多越好，但是仍然需要考虑成本以及需求来设置压力传感器。
优选的是，本实施例中第一电极5的材料为氧化铟锡(InGaSnO)，也就是说本实施例中的触控电极的材料也是氧化铟锡(InGaSnO)；当然也可以采用氧化铟镓锌(IGZO)、氧化铟锌(IZO)、氧化铟锡(InSnO)、纳米银、石墨烯、碳纳米管、等透明导电材料。当触摸屏的尺寸为大尺寸触摸屏时，触控电极还可以采用金属网格结构。
本实施例的触摸屏适用于小尺寸的触摸显示装置，其可以是手机、Pad、笔记本电脑中的任意一种，也可以是其他的显示产品。
实施例2：
本实施例提供一种触摸屏的压力触控检测方法，该触摸屏可以为实施例1中触摸屏，所述压力触控检测方法包括：
根据与一电极5与框架3(第二电极)之间的距离变化，检测触控所用的压力。
具体的，所述压阻材料层采用压阻材料制成，所述
根据第一电极5与框架3(第二电极)之间的距离变化，检测触控所用的压力的步骤包括：
通过检测第一电极5与所述框架3之间的压阻材料的电阻变化，并根据该电阻变化计算出压力数据，以判断触控所用的压力。
本实施例中采用压阻传感器对触控压力的大小进行检测，触摸屏可以实现三维(X、Y、Z轴)多点式触摸功能。
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。

Claims (10)

  1. 一种触摸屏，包括触控面板和至少包围所述触控面板的侧面的框架，所述触控面板包括显示模组和位于显示模组出光面侧的触控模组，其特征在于，所述触摸屏具有显示区和环绕所述显示区的非显示区，在与所述非显示区对应的所述触控模组和所述框架之间设置有至少一个压力传感器；其中，
    所述压力传感器包括第一电极、第二电极，以及设置在第一电极和第二电极之间的压阻材料层；所述第一电极与所述触控模组上的触控电极同层设置且材料相同；所述第二电极由所述框架与所述压阻材料层接触并且处在所述第一电极对侧的部分构成，且所述第一电极和所述第二电极均与所述触控芯片连接。
  2. 根据权利要求1所述的触摸屏，其特征在于，所述压阻材料层的材料为复合压阻材料或者半导体压阻材料。
  3. 根据权利要求1所述的触摸屏，其特征在于，所述压力传感器通过导电双面胶与所述框架连接。
  4. 根据权利要求1所述的触摸屏，其特征在于，所述显示模组与所述触控模组之间设置有用于将两者固定的光学胶。
  5. 根据权利要求1所述的触摸屏，其特征在于，在所述触摸屏的每个边角位置均有一个所述压力传感器。
  6. 根据权利要求5所述的触摸屏，其特征在于，各个所述压力传感器通过连接线均连接同一个触控芯片。
  7. 根据权利要求1所述的触摸屏，其特征在于，所述第一电极的材料为氧化铟锡。
  8. 根据权利要求1所述的触摸屏，其特征在于，所述触摸屏应用在手机、Pad、笔记本电脑中的任意一种中。
  9. 一种触摸屏的压力触控检测方法，应用于权利要求1-8中任一项所述的触摸屏；所述压力触控检测方法包括：
    根据第一电极与第二电极之间的距离变化，检测触控所用的压力。
  10. 根据权利要求9所述的压力触控检测方法，其特征在于，所述根据与非显示区对应的触控模组与框架之间的距离变化，检测触控所用的压力的步骤包括：
    通过检测第一电极与所述框架之间的压阻材料层的电阻变化，并根据该电阻变化计算出压力数据，以判断触控所用的压力。
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