WO2014205934A1 - Touchscreen calibration processing method, apparatus, touchscreen, and terminal - Google Patents
Touchscreen calibration processing method, apparatus, touchscreen, and terminal Download PDFInfo
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- WO2014205934A1 WO2014205934A1 PCT/CN2013/084114 CN2013084114W WO2014205934A1 WO 2014205934 A1 WO2014205934 A1 WO 2014205934A1 CN 2013084114 W CN2013084114 W CN 2013084114W WO 2014205934 A1 WO2014205934 A1 WO 2014205934A1
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- touch screen
- attached
- capacitance value
- water vapor
- touchscreen
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
- G06F3/04186—Touch location disambiguation
Definitions
- a touch screen also known as a "touch screen” or a “touch panel”
- touch screen is a transparent medium attached to the surface of a display.
- resistive touch screen capacitive touch screen
- infrared touch screen infrared touch screen
- surface acoustic wave touch screen the capacitive touch screen uses the current sensing of the human body to work, and is one of the most widely used touch screen types in the current device.
- a capacitive touch screen judges a touch point by sensing a change in capacitance generated by a human touch. It has two sets of signal lines: the drive line and the sense line, the drive line emits a signal, and the sense line detects the change in capacitance value.
- the finger touches the metal layer due to the presence of the human body electric field, the finger and the surface of the touch screen form a coupling capacitor.
- the capacitor is a direct conductor, and the finger sucks a small current from the contact point. The coupling between the two electrodes near the touch point is affected, thereby changing the capacitance between the two electrodes.
- the electrodes in the direction of the driving line sequentially emit excitation signals, and all the electrodes in the direction of the sensing line receive signals at the same time, so that the capacitance values of all the intersections of the lateral and longitudinal electrodes can be obtained, that is, the two-dimensional plane of the entire touch screen.
- Capacitor size according to the two-dimensional capacitance change data of the touch screen, the coordinates of each touch point can be calculated, so even if there are multiple touch points on the screen, the true coordinates of each touch point can be calculated.
- Capacitive touch screens are sensitive to changes in temperature, humidity, static electricity, etc., so capacitive touch screens generally need to be calibrated when they are awakened to reduce the interference of the surrounding environment.
- Water vapor interference is a phenomenon we often encounter. For example, when a mobile phone is taken from a hot room in a winter to a lower temperature house, it is easy to generate a layer of water vapor on the surface of the touch screen. In summer, people are very prone to sweat. It is easy to leave sweat on your phone. Because the water vapor or sweat on the screen disappears very easily, if the water vapor disappears after the calibration of the touch screen wakes up, the touch screen is easy to automatically report due to the disappearance of water vapor, which further leads to abnormal operation of the touch screen or even no response, which seriously affects the user's use.
- the present invention provides a touch screen calibration processing method, apparatus, touch screen, and terminal, to at least solve the problem in the related art that water vapor exists on the touch screen, and if the water vapor disappears after the touch screen is calibrated, the touch screen generates an automatic report, resulting in automatic reporting.
- the problem of abnormal touch screen operation is not limited to the related art.
- a touch screen calibration processing method including: collecting a change in a capacitance value of a horizontal and vertical electrode intersection of the touch screen; determining, according to the change in the capacitance value, whether the touch screen is attached with water vapor; In the case of YES, the touch screen is not calibrated; and/or, if the determination result is no, the touch screen is calibrated.
- the method before collecting the change of the capacitance value of the intersection of the horizontal and vertical electrodes of the touch screen, the method further includes: setting a frequency for collecting the change of the capacitance value, and collecting the intersection of the horizontal and vertical electrodes of the touch screen according to the set frequency The capacitance value of the point changes.
- determining whether the touch screen is attached with water vapor according to the change of the capacitance value comprises: converting the capacitance value change into a signed parameter; and determining, according to the signed parameter, whether the touch screen is attached with water vapor.
- determining whether the touch screen is attached with water vapor according to the signed parameter comprises: determining whether the signed parameter exceeds a predetermined threshold; and if the determination result is yes, determining that the touch screen is attached with water vapor; And/or, if the determination result is no, it is determined that the touch screen does not have moisture attached.
- a touch screen calibration processing apparatus including: an acquisition module configured to collect a capacitance value change of a horizontal and vertical electrode intersection point of the touch screen; and a determination module configured to determine according to the capacitance value change Whether the touch screen is attached with water vapor; the calibration processing module is configured to not calibrate the touch screen if the determination result of the determination module is YES; and/or, the determination result of the determination module is no In the case, the touch screen is calibrated.
- the device further includes: a setting module configured to set a frequency at which the capacitance value is changed, and collect the capacitance value change of the horizontal and vertical electrode intersections of the touch screen according to the set frequency.
- the determining module includes: a converting unit configured to convert the capacitance value change into a signed parameter; and a determining unit configured to determine whether the touch screen is attached with moisture according to the signed parameter.
- the determining unit includes: a determining subunit, configured to determine whether the signed parameter exceeds a predetermined threshold; and determining a subunit, configured to determine that the touch screen is attached with water vapor if the determination result is yes; And/or, if the determination result is no, it is determined that the touch screen does not have moisture attached.
- a touch screen is provided, comprising the apparatus of any of the above.
- a terminal is provided, including the touch screen described above.
- the capacitance value of the intersection of the horizontal and vertical electrodes of the touch screen is collected; according to the change of the capacitance value, it is determined whether the touch screen is attached with water vapor; if the determination result is yes, the touch screen is not calibrated; And/or, in the case that the determination result is no, the touch screen is calibrated, which solves the problem that in the related art, due to the presence of moisture on the touch screen, if the water vapor disappears after the calibration of the touch screen occurs, the touch screen generates an automatic report, resulting in automatic reporting.
- FIG. 2 is a structural block diagram of a touch screen calibration processing apparatus according to an embodiment of the present invention
- FIG. 3 is a touch screen calibration according to an embodiment of the present invention.
- FIG. 4 is a block diagram showing a preferred configuration of the judging module 24 in the touch screen calibration processing apparatus according to an embodiment of the present invention.
- FIG. 5 is a judging unit 44 in the judging module 24 in the touch screen calibration processing apparatus according to an embodiment of the present invention.
- FIG. 6 is a structural block diagram of a touch screen according to an embodiment of the present invention;
- FIG. 7 is a structural block diagram of a terminal according to an embodiment of the present invention;
- FIG. 8 is a structural block diagram of a capacitive touch screen device according to a preferred embodiment of the present invention.
- FIG. 9 is a flow chart of a capacitive touch screen method in accordance with an embodiment of the present invention.
- FIG. 10 is a flow chart of a water vapor barrier algorithm in accordance with an embodiment of the present invention.
- Step S102 Collecting a touch screen horizontally and The capacitance value of the intersection of the longitudinal electrodes changes; Step S104, determining whether the touch screen is attached with water vapor according to the change of the capacitance value; Step S106, if the determination result is YES, the touch screen is not calibrated; and/or, the judgment result is Otherwise, calibrate the touch screen.
- Step S106 determines whether the touch screen is attached with water vapor, the touch screen is not calibrated when there is moisture, and the touch screen is calibrated when there is no water vapor, compared with the related art, the touch screen is attached.
- the water vapor also calibrates the touch screen and changes the calibration zero of the touch screen. Therefore, the water vapor disappears and the touch screen operates abnormally.
- the touch screen is not calibrated, so the calibration zero of the touch screen is not changed after the water vapor disappears, so that
- the touch screen can be used normally regardless of whether the water vapor disappears or not, and the false alarm point is not easily generated, resulting in an abnormal operation of the touch screen.
- the frequency of the change of the collected capacitance value may be set before the change of the capacitance value of the intersection of the horizontal and vertical electrodes of the touch screen is collected, and the touch screen is collected according to the set frequency.
- the capacitance value of the intersection with the longitudinal electrode changes, thereby effectively ensuring that the touch screen operates normally within a predetermined time.
- various processing methods can be adopted. For example, it is possible to roughly judge whether or not water vapor is attached to the touch screen. First, the capacitance value change is converted into a signed parameter; The parameter determines whether the touch screen is attached with moisture.
- the capacitance value becomes smaller when the finger touches the touch screen, it can be set to a negative value, and when moisture is attached to the touch screen, the capacitance value becomes large, and thus can be set to a positive value. Therefore, whether the touch screen is attached with moisture is determined according to the set forward value or the negative value. It should be noted that setting the forward value and setting the negative value only has a simpler recording mode, and other recording methods can also be used. For example, the finger can be set to a positive value when the touch screen is touched, and moisture will be attached. The touch screen is set to a negative value. There are also various situations in which moisture is attached to the touch screen.
- a little water vapor may be attached to the touch screen, and the little water vapor does not affect the operation of the touch screen. Therefore, the water vapor may not be processed, but the touch screen may be directly calibrated; For example, when the touch screen is attached with more water vapor, the more water vapor has a greater influence on the operation of the touch screen. Therefore, the touch screen cannot be processed to avoid abnormal operation of the touch screen.
- a predetermined threshold may be set first, the predetermined threshold corresponding to whether the amount of water vapor required to calibrate the touch screen is required, and then Determining whether the signed parameter exceeds the predetermined threshold; if the determination result is YES, determining that the touch screen is attached with moisture; and/or, if the determination result is negative, determining that the touch screen does not adhere to water vapor.
- a touch screen calibration processing device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again.
- the term "module” may implement a combination of software and/or hardware of a predetermined function.
- the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and conceivable.
- 2 is a block diagram showing the structure of a touch screen calibration processing apparatus according to an embodiment of the present invention. As shown in FIG. 2, the apparatus includes an acquisition module 22, a determination module 24, and a calibration processing module 26. The apparatus will be described below.
- the collecting module 22 is configured to collect a change in the capacitance value of the intersection of the horizontal and vertical electrodes of the touch screen; the determining module 24 is connected to the collecting module 22, and is configured to determine whether the touch screen is attached with water vapor according to the change of the capacitance value; the calibration processing module 26, the connection The determination module 24 is configured to not calibrate the touch screen when the determination result of the determination module 24 is YES; and/or to calibrate the touch screen when the determination result of the determination module 24 is NO.
- 3 is a block diagram of a preferred structure of a touch screen calibration processing apparatus according to an embodiment of the present invention. As shown in FIG. 3, the apparatus includes: a setting module 32, and a setting module, as shown in FIG. 32 for explanation.
- the setting module 32 is connected to the collecting module 22, and is configured to set a frequency at which the value of the collecting capacitance changes, and collect a change in the capacitance value of the intersection of the horizontal and vertical electrodes of the touch screen according to the set frequency.
- 4 is a block diagram showing a preferred structure of the judging module 24 in the touch screen calibration processing apparatus according to the embodiment of the present invention. As shown in FIG. 4, the judging module 24 includes a converting unit 42 and a judging unit 44. The judging module 24 will be described below. .
- the converting unit 42 is configured to convert the capacitance value change into a signed parameter; the determining unit 44 is connected to the converting unit 42 and configured to determine whether the touch screen is attached with moisture according to the signed parameter.
- the determining unit 44 includes a determining subunit 52 and a determining subunit 54, and This determination unit 34 will be described.
- the determining subunit 52 is configured to determine whether the signed parameter exceeds a predetermined threshold; the determining subunit 54 is connected to the determining subunit 52, and is configured to determine that the touch screen is attached if the determining result of the determining subunit 52 is YES. Water vapor; and/or, in the case where the judgment result of the judgment sub-unit 52 is NO, it is determined that the touch screen is not attached with moisture.
- FIG. 5 is a block diagram showing a preferred structure of the determining unit 44 in the determining module 24 of the touch screen calibration processing apparatus according to the embodiment of the present invention.
- the determining unit 44 includes a determining subunit 52 and a determining subunit 54, and This determination unit 34 will be described.
- the determining subunit 52 is configured to determine whether the signed parameter exceeds a predetermined threshold; the determining subunit 54 is connected to the determining subunit 52,
- FIG. 6 is a structural block diagram of a touch screen according to an embodiment of the present invention.
- the touch screen 60 includes the touch screen calibration processing device 62 according to any one of the above.
- FIG. 7 is a structural block diagram of a terminal according to an embodiment of the present invention.
- the terminal 70 includes the touch screen 60 shown in FIG. 6. The following description will be made in conjunction with the preferred embodiments.
- a capacitive touch screen device when using a capacitive touch screen device, there is often a problem of water vapor interference in winter or summer, that is, when there is moisture on the screen, it is easy to have problems caused by false alarms after waking up.
- FIG. 8 is a structural block diagram of a capacitive touch screen device according to a preferred embodiment of the present invention. As shown in FIG.
- the capacitive touch screen device may include the following modules: a clock control module 80 (corresponding to the above-described setting module 32), data scanning The module 81 and the data acquisition module 82 (functionally equivalent to the above-described acquisition module 22), the data conversion module 83 and the data processing module 84 (functionally equivalent to the above-described conversion unit 42), and the data storage module 75 (corresponding to the function of the storage module in the related art)
- the calibration control module 86 (which is functionally equivalent to the above-described calibration processing module 26), the communication module 87, and the application module 88 (corresponding to the communication module and the storage module function in the related art).
- the above respective modules will be described separately.
- Clock Control Module 80 Set to set the scan frequency of the capacitive screen.
- the data acquisition module 82 sequentially scans the entire touch screen by emitting an excitation signal through the electrodes in the driving line direction, and simultaneously receives all the signals in the direction of the sensing line to collect the capacitance of the intersection of the horizontal and vertical electrodes (ie, Coupling capacitance) The change in value.
- the coupling capacitance value becomes smaller, and when the moisture adheres to the capacitive screen, the coupling capacitance value becomes larger.
- the data processing module 84 analyzes and processes the data of each channel of the obtained capacitive screen to determine whether moisture is attached to the screen. The programmed value is used to convert the change in capacitance value into another set of signed parameters.
- Calibration Control Module 86 Calibrate the capacitive screen.
- Communication module 87 Set to transfer the data of the host side and the touch screen chip end.
- Application Module 88 Set to receive and prompt the user for data on the underlying driver side. In the preferred embodiment, a method for waterproofing a capacitive touch screen is provided.
- the method is capable of preventing a false alarm point when the moisture is on the capacitive screen.
- the method includes the following steps: Step S1, waking up the capacitive touch screen.
- step S2 the capacitive screen is scanned at a frequency set by the clock control module, and data of each channel of the touch screen is collected.
- step S3 the collected data is converted into a digital signal, and the converted data is transmitted to the data processing module for processing.
- the data processing module processes the transmitted data to determine whether moisture is attached to the screen.
- the module will set a negative threshold for the target. If the data is less than the negative threshold, it means that water vapor is attached to the screen, then the calibration interface is not called, otherwise the calibration interface is called.
- step S5 if the steam is not used, the touch screen is calibrated, otherwise it is not calibrated.
- the touch screen wakes up to determine whether moisture is attached to the screen.
- the screen is not calibrated.
- the water vapor disappears, no automatic reporting will occur and the customer's operation on the touch screen will be affected.
- the signal generated by the finger is far greater than the signal generated by the water vapor, so it does not affect the customer experience.
- the first capacitance change value caused by the moisture attached to the touch screen and the second capacitance change value caused by the finger touching the touch screen are collected; determining the first capacitance change value and the first Whether the difference between the two capacitance change values exceeds a second predetermined threshold; if the judgment result is yes, The touch screen operation process is performed according to the second capacitance change value described above. Therefore, the user can attach the water vapor to the screen of the mobile phone, and the touch screen can be used normally regardless of whether the water vapor disappears or not, and the phenomenon that the touch screen is abnormally operated due to the automatic reporting is not easily generated.
- FIG. 9 is a flowchart of a method for a capacitive touch screen according to an embodiment of the present invention. As shown in FIG. 9, the flow includes the following steps: Step S902: Awakening a capacitive touch screen. Step S904, scanning and collecting data on each channel of the touch screen. The capacitive screen is scanned at the frequency set by the clock control module, and the data of each channel of the touch screen is collected. Step S906, performing analysis processing on the acquired data. The data processing module processes the passed data. In step S908, it is determined whether moisture is attached to the screen. Set a negative threshold. If the data is less than the negative threshold, it means that water vapor is attached to the screen.
- FIG. 10 is a flowchart of a waterproof steam algorithm according to an embodiment of the present invention. As shown in FIG. 10, the flow includes the following steps: Step S1002, first setting a threshold of a negative value. Step S1004: Calculate the direction and size of the data of each channel of the acquired touch screen. In step S1006, it is determined whether there is data exceeding the threshold, that is, whether or not moisture is attached to the screen. If the data is negative and exceeds the negative threshold, there is moisture attachment. In step S1008, if the current touch screen has moisture adhesion, the touch screen is not calibrated, otherwise the touch screen is calibrated.
- modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. Perform the steps shown or described, or separate them into individual integrated circuit modules, or Multiple of these modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
- the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
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Abstract
The present invention provides a touchscreen calibration processing method, an apparatus, a touchscreen, and a terminal. The method comprises: acquiring a capacitance value change on an intersected point of a row electrode and a column electrode on a touchscreen; determining, according to the capacitance value change, whether water vapor is attached on the touchscreen; and if the determining result is yes, not calibrating the touchscreen; and/or, if the determining result is no, calibrating the touchscreen. By means of the present invention, the problem in a related art is solved that a touchscreen cannot be properly operated because the touchscreen generates an automatic reported point in a case in which water vapor exists on the touchscreen but the water vapor disappears after the touchscreen calibration, and therefor, the touchscreen can be properly used no matter whether water vapor disappears in a case in which water vapor is attached to the touchscreen, and the effects are not easy to occurs that a reported error point is generated and the touchscreen cannot be properly operated.
Description
触摸屏校准处理方法、 装置、 触摸屏及终端 技术领域 本发明涉及通信领域， 具体而言， 涉及一种触摸屏校准处理方法、 装置、 触摸屏 及终端。 背景技术 触摸屏 （touch screen) 又称为 "触控屏"、 "触控面板"， 是一种附加在显示器表面 的透明介质。 根据触摸屏工作原理和传输信息介质的不同， 可将其分成很多类， 如电 阻式触摸屏， 电容式触摸屏， 红外线式触摸屏， 表面声波触摸屏。 其中， 电容式触摸 屏利用人体的电流感应进行工作， 是目前设备中应用最广的触摸屏种类之一。 电容式触摸屏是通过感应人体触摸所产生的电容变化而判断触摸点的。 它具有两 组信号线： 驱动线与感应线， 驱动线发射信号， 感应线侦测电容值的变化。 当手指触 摸在金属层上时， 由于人体电场的存在， 手指和触摸屏表面形成一个耦合电容， 对于 高频电流来说， 电容是直接导体， 于是手指从接触点吸走一个很小的电流。 影响了触 摸点附近两个电极之间的耦合， 从而改变了这两个电极之间的电容量。 检测互电容大 小时， 驱动线方向的电极依次发出激励信号， 感应线方向的所有电极同时接收信号， 这样可以得到所有横向和纵向电极交汇点的电容值的变化， 即整个触摸屏的二维平面 的电容大小， 根据触摸屏二维电容变化量数据， 可以计算出每一个触摸点的坐标， 因 此屏上即使有多个触摸点， 也能计算出每个触摸点的真实坐标。 电容式触摸屏对温度、 湿度、 静电等环境的变化较为敏感， 所以电容式触摸屏在 被唤醒的时候一般都需要做一次校准， 以降低周围环境的干扰。 水汽干扰是我们经常 碰到的一种现象， 例如， 在冬天手机从温度较高的屋内拿到温度较低的屋外时， 很容 易在触摸屏表面产生一层水汽； 在夏天， 人们非常容易出汗， 很容易将汗渍残留在手 机上。 因屏幕上的水汽或汗渍非常容易的消失， 触摸屏唤醒发生校准后若水汽消失， 触摸屏很容易因水汽消失产生自动报点， 从而进一步导致触摸屏操作异常甚至无响应 的情况， 严重影响用户使用。 因此，在相关技术中由于触摸屏上存在水汽， 而在触摸屏发生校准后若水汽消失， 产生触摸屏产生自动报点， 导致触摸屏操作异常的问题。
发明内容 本发明提供了一种触摸屏校准处理方法、 装置、 触摸屏及终端， 以至少解决在相 关技术中由于触摸屏上存在水汽， 而在触摸屏发生校准后若水汽消失， 产生触摸屏产 生自动报点， 导致触摸屏操作异常的问题。 根据本发明的一个方面， 提供了一种触摸屏校准处理方法， 包括： 采集触摸屏横 向和纵向电极交汇点的电容值变化； 根据所述电容值变化， 判断所述触摸屏是否附着 有水汽； 在判断结果为是的情况下， 不对所述触摸屏进行校准； 和 /或， 在判断结果为 否的情况下， 对所述触摸屏进行校准。 优选地， 在采集所述触摸屏横向和纵向电极交汇点的所述电容值变化之前， 还包 括： 设置采集所述电容值变化的频率， 依据设置的所述频率采集所述触摸屏横向和纵 向电极交汇点的所述电容值变化。 优选地， 根据所述电容值变化， 判断所述触摸屏是否附着有水汽包括： 将所述电 容值变化转换为带符号的参数； 依据所述带符号的参数， 判断所述触摸屏是否附着有 水汽。 优选地， 依据所述带符号的参数， 判断所述触摸屏是否附着有水汽包括： 判断所 述带符号的参数是否超过预定阈值； 在判断结果为是的情况下， 确定所述触摸屏附着 有水汽； 和 /或， 在判断结果为否的情况下， 确定所述触摸屏没有附着水汽。 根据本发明的另一方面， 提供了一种触摸屏校准处理装置， 包括： 采集模块， 设 置为采集触摸屏横向和纵向电极交汇点的电容值变化； 判断模块， 设置为根据所述电 容值变化， 判断所述触摸屏是否附着有水汽； 校准处理模块， 设置为在所述判断模块 的判断结果为是的情况下， 不对所述触摸屏进行校准； 和 /或， 在所述判断模块的判断 结果为否的情况下， 对所述触摸屏进行校准。 优选地， 该装置还包括： 设置模块， 设置为设置采集所述电容值变化的频率， 依 据设置的所述频率采集所述触摸屏横向和纵向电极交汇点的所述电容值变化。 优选地， 所述判断模块包括： 转换单元， 设置为将所述电容值变化转换为带符号 的参数； 判断单元， 设置为依据所述带符号的参数， 判断所述触摸屏是否附着有水汽。 优选地， 所述判断单元包括： 判断子单元， 设置为判断所述带符号的参数是否超 过预定阈值； 确定子单元， 设置为在判断结果为是的情况下， 确定所述触摸屏附着有 水汽； 和 /或， 在判断结果为否的情况下， 确定所述触摸屏没有附着水汽。
根据本发明的又一方面， 提供了一种触摸屏， 包括上述任一项所述的装置。 根据本发明的还一方面， 提供了一种终端， 包括上述所述的触摸屏。 通过本发明， 采用采集触摸屏横向和纵向电极交汇点的电容值变化； 根据所述电 容值变化， 判断所述触摸屏是否附着有水汽； 在判断结果为是的情况下， 不对所述触 摸屏进行校准； 和 /或， 在判断结果为否的情况下， 对所述触摸屏进行校准， 解决了在 相关技术中由于触摸屏上存在水汽， 而在触摸屏发生校准后若水汽消失， 产生触摸屏 产生自动报点， 导致触摸屏操作异常的问题， 进而达到了在触摸屏上附着有水汽的情 况下， 无论水汽是否消失， 触摸屏均可以正常使用， 不会轻易产生误报点而导致触摸 屏操作异常的效果。 附图说明 此处所说明的附图用来提供对本发明的进一步理解， 构成本申请的一部分， 本发 明的示意性实施例及其说明用于解释本发明， 并不构成对本发明的不当限定。 在附图 中- 图 1是根据本发明实施例的触摸屏校准处理方法的流程图； 图 2是根据本发明实施例的触摸屏校准处理装置的结构框图； 图 3是根据本发明实施例的触摸屏校准处理装置的优选结构框图； 图 4是根据本发明实施例的触摸屏校准处理装置中判断模块 24的优选结构框图； 图 5是根据本发明实施例的触摸屏校准处理装置中判断模块 24中判断单元 44的 优选结构框图； 图 6是根据本发明实施例的触摸屏的结构框图； 图 7是根据本发明实施例的终端的结构框图； 图 8是根据本发明优选实施例的电容式触摸屏设备的结构框图； 图 9是根据本发明实施例的电容式触摸屏方法的流程图； 图 10是根据本发明实施例的防水汽算法的流程图。
具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是， 在不冲突的 情况下， 本申请中的实施例及实施例中的特征可以相互组合。 在本实施例中提供了一种触摸屏校准处理方法， 图 1是根据本发明实施例的触摸 屏校准处理方法的流程图， 如图 1所示， 该流程包括如下步骤： 步骤 S102， 采集触摸屏横向和纵向电极交汇点的电容值变化； 步骤 S104， 根据上述电容值变化， 判断触摸屏是否附着有水汽； 步骤 S106， 在判断结果为是的情况下， 不对触摸屏进行校准； 和 /或， 在判断结果 为否的情况下， 对触摸屏进行校准。 通过上述步骤， 依据触摸屏电容值的变化， 确定触摸屏是否附着有水汽， 在有水 汽的时候不对触摸屏进行校准， 而在没有水汽的时候才对触摸屏进行校准， 相对于相 关技术中， 在触摸屏上附着有水汽还对触摸屏进行校准， 改变了触摸屏的校准零点， 因而水汽消失后导致触摸屏操作异常， 在有水汽的时候不对触摸屏进行校准， 因而在 水汽消失后不会改变触摸屏的校准零点， 从而不会导致触摸屏的操作异常， 进而达到 了在触摸屏上附着有水汽的情况下， 无论水汽是否消失， 触摸屏均可以正常使用， 不 会轻易产生误报点而导致触摸屏操作异常的效果。 为了保证在某一预定的时间内， 对触摸屏的操作均是正常的， 可以在采集触摸屏 横向和纵向电极交汇点的电容值变化之前， 设置采集电容值变化的频率， 依据设置的 频率采集触摸屏横向和纵向电极交汇点的电容值变化， 因而有效地保证触摸屏在某一 预定时间内操作的正常。 根据电容值变化， 判断触摸屏是否附着有水汽时， 可以采用多种处理方式， 例如， 可以较为粗略地判断触摸屏上是否附着有水汽， 首先， 将电容值变化转换为带符号的 参数； 依据带符号的参数， 判断触摸屏是否附着有水汽。 比如， 由于手指触摸触摸屏 时， 电容值会变小， 因而可以设置为一负向值， 而有水汽附着在触摸屏上时， 电容值 会变大， 因而可以设置为一正向值。 因此， 依据设置的正向值或是负向值判断触摸屏 是否附着有水汽。 需要说明的是， 设置正向值和设置负向值只有一种较为简单的记录 方式， 也可以采用其它的记录方式， 例如， 还可以将手指触摸触摸屏时设置为正向值， 将有水汽附着触摸屏设置为负向值。
触摸屏上附着有水汽也存在多种情况， 例如， 触摸屏上可能附着有少许水汽， 该 少许的水汽并不影响触摸屏的操作， 因而可以不对上述的水汽进行处理， 而是可以直 接对触摸屏进行校准； 又例如， 触摸屏上可能时附着有较多水汽， 而该较多的水汽对 触摸屏的操作影响较大， 因此， 不能对触摸屏进行处理， 避免触摸屏的操作异常。 为 了区分上述不同情况， 以便进行有区别的处理， 依据带符号的参数， 判断触摸屏是否 附着有水汽时， 可以先设置一个预定阈值， 该预定阈值对应于是否需要对触摸屏进行 校准的水汽量， 而后判断带符号的参数是否超过该预定阈值； 在判断结果为是的情况 下， 确定触摸屏附着有水汽； 和 /或， 在判断结果为否的情况下， 确定触摸屏没有附着 水汽。 通过这样的处理， 使得对是否进行校准进行了更主准确的判断。 在本实施例中还提供了一种触摸屏校准处理装置， 该装置用于实现上述实施例及 优选实施方式， 已经进行过说明的不再赘述。 如以下所使用的， 术语"模块"可以实现 预定功能的软件和 /或硬件的组合。 尽管以下实施例所描述的装置较佳地以软件来实 现， 但是硬件， 或者软件和硬件的组合的实现也是可能并被构想的。 图 2是根据本发明实施例的触摸屏校准处理装置的结构框图， 如图 2所示， 该装 置包括采集模块 22、 判断模块 24和校准处理模块 26， 下面对该装置进行说明。 采集模块 22， 设置为采集触摸屏横向和纵向电极交汇点的电容值变化； 判断模块 24， 连接至上述采集模块 22， 设置为根据电容值变化， 判断触摸屏是否附着有水汽； 校准处理模块 26， 连接至上述判断模块 24， 设置为在上述判断模块 24的判断结果为 是的情况下， 不对触摸屏进行校准； 和 /或， 在上述判断模块 24的判断结果为否的情 况下， 对触摸屏进行校准。 图 3是根据本发明实施例的触摸屏校准处理装置的优选结构框图， 如图 3所示， 该装置除包括图 2所示的所有模块外， 还包括： 设置模块 32， 下面对该设置模块 32 进行说明。 设置模块 32， 连接至上述采集模块 22， 设置为设置采集电容值变化的频率， 依据 设置的频率采集触摸屏横向和纵向电极交汇点的电容值变化。 图 4是根据本发明实施例的触摸屏校准处理装置中判断模块 24的优选结构框图， 如图 4所示， 该判断模块 24包括转换单元 42和判断单元 44， 下面对该判断模块 24 进行说明。 转换单元 42， 设置为将上述电容值变化转换为带符号的参数； 判断单元 44， 连接 至上述转换单元 42， 设置为依据上述带符号的参数， 判断触摸屏是否附着有水汽。
图 5是根据本发明实施例的触摸屏校准处理装置中判断模块 24中判断单元 44的 优选结构框图， 如图 5所示， 该判断单元 44包括判断子单元 52、 确定子单元 54， 下 面对该判断单元 34进行说明。 判断子单元 52， 设置为判断带符号的参数是否超过预定阈值； 确定子单元 54， 连 接至上述判断子单元 52， 设置为在判断子单元 52的判断结果为是的情况下， 确定触 摸屏附着有水汽； 和 /或， 在判断子单元 52的判断结果为否的情况下， 确定触摸屏没 有附着水汽。 图 6是根据本发明实施例的触摸屏的结构框图， 如图 6所示， 该触摸屏 60， 包括 上述任一项所述的触摸屏校准处理装置 62。 图 7是根据本发明实施例的终端的结构框图， 如图 7所示， 该终端 70， 包括图 6 所示的触摸屏 60。 下面结合优选实施例进行说明。 针对相关技术中， 在使用电容式触摸屏设备时， 无论是冬天还是夏天， 经常会有 水汽干扰的问题， 即当有水汽在屏幕上， 唤醒后容易有误报点产生的问题， 在优选本 实施例中提出了一种能够防止水汽在触摸屏上易产生误报点的方法， 以及使用该方法 的电容式触摸屏设备， 即上述所述的触摸屏校准处理方法及装置，通过该方法及装置， 即使有水汽在屏幕上， 在水汽消失前后， 都不会产生误报点， 提高了用户体验。 下面 对本实施例的电容触摸屏防水汽的电容式触摸屏设备和电容触摸屏防水汽方法分别进 行说明。 图 8是根据本发明优选实施例的电容式触摸屏设备的结构框图， 如图 8所示， 该 电容式触摸屏设备可以包括以下模块： 时钟控制模块 80 (与上述设置模块 32功能相 当）、 数据扫描模块 81和数据采集模块 82 (与上述采集模块 22功能相当）、 数据转换 模块 83和数据处理模块 84 (与上述转换单元 42功能相当）、 数据存储模块 75 (与相 关技术中的存储模块功能相当）、校准控制模块 86(与上述校准处理模块 26功能相当）、 通信模块 87和应用模块 88 (与相关技术中的通信模块和存储模块功能相当）。 下面对 上述各个模块分别进行说明。 时钟控制模块 80: 设置为设定电容屏的扫描频率。 数据采集模块 82: 通过驱动线方向的电极依次发出激励信号来扫描整个触摸屏， 同时，感应线方向的所有电极同时接收信号，来采集横向和纵向电极交汇点的电容（即
耦合电容） 值的变化。 人的手指触摸电容屏时， 会使耦合电容值变小， 而水汽附着在 电容屏上时， 会使耦合电容值变大。 数据处理模块 84: 将获取到的电容屏各通道的数据进行分析和算法处理， 判断是 否有水汽附着在屏幕上。通过编程计算，将电容值的变化转换为另一组带符号的参数。 若这组参数为正， 即为正向值， 意指此通道为手指触摸。 若参数为负， 即为负向值， 意指此通道有水汽附着。 如果有水汽附着在屏幕上， 而发生校准， 若水汽消失后， 原 水汽处则由负向值转为正向值， 与手指触摸的效果类似， 而产生自动报点。 校准控制模块 86: 对电容屏进行校准处理。 通信模块 87: 设置为主机端和触摸屏芯片端数据的传递。 应用模块 88: 设置为对底层驱动侧的数据进行接收和提示用户。 在本优选实施例中还提供了一种电容触摸屏防水汽的方法， 该方法实现了防止水 汽在电容屏上时易产生误报点， 该方法包括如下步骤： 步骤 Sl， 唤醒电容式触摸屏屏。 步骤 S2， 以时钟控制模块设定好的频率对电容屏进行扫描， 同时收集触摸屏各通 道的数据。 步骤 S3， 将采集到的数据转换为数字信号， 并将转换后的数据传递给数据处理模 块处理。 步骤 S4， 数据处理模块对传递过来的数据进行处理， 判断是否有水汽附着在屏幕 上。 该模块会针对性设定一负向阈值， 若数据小于负向阈值， 则说明有水汽附着在屏 幕上， 则不调用校准接口， 否则调用校准接口。 步骤 S5， 如无水汽则对触摸屏进行校准， 否则不校准。 通过上述电容触摸屏防水汽的方法， 利用手指和水汽对触摸屏耦合电容变化方向 相反的原理， 在触摸屏唤醒时判断是否有水汽附着在屏幕上。 有水汽附着时不校准屏 幕， 当水汽消失时便不会产生自动报点而影响客户对触摸屏的操作。 同时， 即使水汽 不消失， 因手指产生的信号远远大于水汽产生的信号， 所以亦不影响客户体验。例如， 有水汽附着在屏幕上时， 在不对触摸屏进行校准之后， 采集由于水汽附着触摸屏引起 的第一电容变化值和由于手指触摸触摸屏引起的第二电容变化值； 判断第一电容变化 值与第二电容变化值之间的差值是否超过第二预定阈值； 在判断结果为是的情况下，
依据上述第二电容变化值进行触摸屏操作处理。 从而可以使用户在手机屏上附着水汽 的情况下， 无论水汽是否消失， 触摸屏均可正常使用， 而不会轻易产生自动报点而导 致触摸屏操作异常的现象。 下面结合附图对实施例及优选实施方式进行说明。 图 9是根据本发明实施例的电容式触摸屏方法的流程图， 如图 9所示， 该流程包 括如下步骤： 步骤 S902， 唤醒电容式触摸屏屏。 步骤 S904， 扫描并收集触摸屏各通道上的数据。 以时钟控制模块设定好的频率对 电容屏进行扫描， 同时收集触摸屏各通道的数据。 步骤 S906， 对获取的数据进行分析处理。 数据处理模块对传递过来的数据进行处 理。 步骤 S908， 判断是否有水汽附着在屏幕上。 设定一负向阈值， 若数据小于负向阈 值， 则说明有水汽附着在屏幕上， 否则说明没有水汽附着在屏幕上。 步骤 S910， 如无水汽则对触摸屏进行校准， 否则不校准触摸屏。 图 10是根据本发明实施例的防水汽算法的流程图， 如图 10所示， 该流程包括如 下步骤： 步骤 S1002， 首先设定一个负向值的阈值。 步骤 S1004, 计算获取的触摸屏各个通道的数据的方向及大小。 步骤 S1006, 判断是否有数据超过了阈值， 即判断是否有水汽附着在屏幕上。 如 果有数据为负向值且超过了负向阈值， 则说明有水汽附着。 步骤 S1008， 当前触摸屏有水汽附着， 则不校准触摸屏， 否则校准触摸屏。 显然， 本领域的技术人员应该明白， 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现， 它们可以集中在单个的计算装置上， 或者分布在多个计算装置所 组成的网络上， 可选地， 它们可以用计算装置可执行的程序代码来实现， 从而， 可以 将它们存储在存储装置中由计算装置来执行， 并且在某些情况下， 可以以不同于此处 的顺序执行所示出或描述的步骤， 或者将它们分别制作成各个集成电路模块， 或者将
它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样， 本发明不限制于任 何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本领域的技 术人员来说， 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内， 所作的 任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。
TECHNICAL FIELD The present invention relates to the field of communications, and in particular to a touch screen calibration processing method, apparatus, touch screen, and terminal. BACKGROUND OF THE INVENTION A touch screen, also known as a "touch screen" or a "touch panel", is a transparent medium attached to the surface of a display. According to the working principle of the touch screen and the information medium, it can be divided into many types, such as resistive touch screen, capacitive touch screen, infrared touch screen, and surface acoustic wave touch screen. Among them, the capacitive touch screen uses the current sensing of the human body to work, and is one of the most widely used touch screen types in the current device. A capacitive touch screen judges a touch point by sensing a change in capacitance generated by a human touch. It has two sets of signal lines: the drive line and the sense line, the drive line emits a signal, and the sense line detects the change in capacitance value. When the finger touches the metal layer, due to the presence of the human body electric field, the finger and the surface of the touch screen form a coupling capacitor. For high-frequency current, the capacitor is a direct conductor, and the finger sucks a small current from the contact point. The coupling between the two electrodes near the touch point is affected, thereby changing the capacitance between the two electrodes. When detecting the mutual capacitance, the electrodes in the direction of the driving line sequentially emit excitation signals, and all the electrodes in the direction of the sensing line receive signals at the same time, so that the capacitance values of all the intersections of the lateral and longitudinal electrodes can be obtained, that is, the two-dimensional plane of the entire touch screen. Capacitor size, according to the two-dimensional capacitance change data of the touch screen, the coordinates of each touch point can be calculated, so even if there are multiple touch points on the screen, the true coordinates of each touch point can be calculated. Capacitive touch screens are sensitive to changes in temperature, humidity, static electricity, etc., so capacitive touch screens generally need to be calibrated when they are awakened to reduce the interference of the surrounding environment. Water vapor interference is a phenomenon we often encounter. For example, when a mobile phone is taken from a hot room in a winter to a lower temperature house, it is easy to generate a layer of water vapor on the surface of the touch screen. In summer, people are very prone to sweat. It is easy to leave sweat on your phone. Because the water vapor or sweat on the screen disappears very easily, if the water vapor disappears after the calibration of the touch screen wakes up, the touch screen is easy to automatically report due to the disappearance of water vapor, which further leads to abnormal operation of the touch screen or even no response, which seriously affects the user's use. Therefore, in the related art, due to the presence of moisture on the touch screen, if the water vapor disappears after the calibration of the touch screen occurs, the touch screen generates an automatic report point, resulting in an abnormal operation of the touch screen. SUMMARY OF THE INVENTION The present invention provides a touch screen calibration processing method, apparatus, touch screen, and terminal, to at least solve the problem in the related art that water vapor exists on the touch screen, and if the water vapor disappears after the touch screen is calibrated, the touch screen generates an automatic report, resulting in automatic reporting. The problem of abnormal touch screen operation. According to an aspect of the present invention, a touch screen calibration processing method is provided, including: collecting a change in a capacitance value of a horizontal and vertical electrode intersection of the touch screen; determining, according to the change in the capacitance value, whether the touch screen is attached with water vapor; In the case of YES, the touch screen is not calibrated; and/or, if the determination result is no, the touch screen is calibrated. Preferably, before collecting the change of the capacitance value of the intersection of the horizontal and vertical electrodes of the touch screen, the method further includes: setting a frequency for collecting the change of the capacitance value, and collecting the intersection of the horizontal and vertical electrodes of the touch screen according to the set frequency The capacitance value of the point changes. Preferably, determining whether the touch screen is attached with water vapor according to the change of the capacitance value comprises: converting the capacitance value change into a signed parameter; and determining, according to the signed parameter, whether the touch screen is attached with water vapor. Preferably, determining whether the touch screen is attached with water vapor according to the signed parameter comprises: determining whether the signed parameter exceeds a predetermined threshold; and if the determination result is yes, determining that the touch screen is attached with water vapor; And/or, if the determination result is no, it is determined that the touch screen does not have moisture attached. According to another aspect of the present invention, a touch screen calibration processing apparatus is provided, including: an acquisition module configured to collect a capacitance value change of a horizontal and vertical electrode intersection point of the touch screen; and a determination module configured to determine according to the capacitance value change Whether the touch screen is attached with water vapor; the calibration processing module is configured to not calibrate the touch screen if the determination result of the determination module is YES; and/or, the determination result of the determination module is no In the case, the touch screen is calibrated. Preferably, the device further includes: a setting module configured to set a frequency at which the capacitance value is changed, and collect the capacitance value change of the horizontal and vertical electrode intersections of the touch screen according to the set frequency. Preferably, the determining module includes: a converting unit configured to convert the capacitance value change into a signed parameter; and a determining unit configured to determine whether the touch screen is attached with moisture according to the signed parameter. Preferably, the determining unit includes: a determining subunit, configured to determine whether the signed parameter exceeds a predetermined threshold; and determining a subunit, configured to determine that the touch screen is attached with water vapor if the determination result is yes; And/or, if the determination result is no, it is determined that the touch screen does not have moisture attached. According to still another aspect of the present invention, a touch screen is provided, comprising the apparatus of any of the above. According to still another aspect of the present invention, a terminal is provided, including the touch screen described above. According to the present invention, the capacitance value of the intersection of the horizontal and vertical electrodes of the touch screen is collected; according to the change of the capacitance value, it is determined whether the touch screen is attached with water vapor; if the determination result is yes, the touch screen is not calibrated; And/or, in the case that the determination result is no, the touch screen is calibrated, which solves the problem that in the related art, due to the presence of moisture on the touch screen, if the water vapor disappears after the calibration of the touch screen occurs, the touch screen generates an automatic report, resulting in automatic reporting. When the touch screen is operated abnormally, and the water vapor is attached to the touch screen, the touch screen can be used normally regardless of whether the water vapor disappears or not, and the false alarm point is not easily generated, resulting in an abnormal operation of the touch screen. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a flowchart of a touch screen calibration processing method according to an embodiment of the present invention; FIG. 2 is a structural block diagram of a touch screen calibration processing apparatus according to an embodiment of the present invention; FIG. 3 is a touch screen calibration according to an embodiment of the present invention. FIG. 4 is a block diagram showing a preferred configuration of the judging module 24 in the touch screen calibration processing apparatus according to an embodiment of the present invention. FIG. 5 is a judging unit 44 in the judging module 24 in the touch screen calibration processing apparatus according to an embodiment of the present invention. FIG. 6 is a structural block diagram of a touch screen according to an embodiment of the present invention; FIG. 7 is a structural block diagram of a terminal according to an embodiment of the present invention; FIG. 8 is a structural block diagram of a capacitive touch screen device according to a preferred embodiment of the present invention. 9 is a flow chart of a capacitive touch screen method in accordance with an embodiment of the present invention; and FIG. 10 is a flow chart of a water vapor barrier algorithm in accordance with an embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. In the embodiment, a touch screen calibration processing method is provided. FIG. 1 is a flowchart of a touch screen calibration processing method according to an embodiment of the present invention. As shown in FIG. 1 , the flow includes the following steps: Step S102: Collecting a touch screen horizontally and The capacitance value of the intersection of the longitudinal electrodes changes; Step S104, determining whether the touch screen is attached with water vapor according to the change of the capacitance value; Step S106, if the determination result is YES, the touch screen is not calibrated; and/or, the judgment result is Otherwise, calibrate the touch screen. Through the above steps, according to the change of the touch screen capacitance value, it is determined whether the touch screen is attached with water vapor, the touch screen is not calibrated when there is moisture, and the touch screen is calibrated when there is no water vapor, compared with the related art, the touch screen is attached. The water vapor also calibrates the touch screen and changes the calibration zero of the touch screen. Therefore, the water vapor disappears and the touch screen operates abnormally. When the water vapor is present, the touch screen is not calibrated, so the calibration zero of the touch screen is not changed after the water vapor disappears, so that When the operation of the touch screen is abnormal, and the water vapor is attached to the touch screen, the touch screen can be used normally regardless of whether the water vapor disappears or not, and the false alarm point is not easily generated, resulting in an abnormal operation of the touch screen. In order to ensure that the operation of the touch screen is normal within a predetermined time, the frequency of the change of the collected capacitance value may be set before the change of the capacitance value of the intersection of the horizontal and vertical electrodes of the touch screen is collected, and the touch screen is collected according to the set frequency. The capacitance value of the intersection with the longitudinal electrode changes, thereby effectively ensuring that the touch screen operates normally within a predetermined time. According to the change of the capacitance value, when determining whether the touch screen is attached with water vapor, various processing methods can be adopted. For example, it is possible to roughly judge whether or not water vapor is attached to the touch screen. First, the capacitance value change is converted into a signed parameter; The parameter determines whether the touch screen is attached with moisture. For example, since the capacitance value becomes smaller when the finger touches the touch screen, it can be set to a negative value, and when moisture is attached to the touch screen, the capacitance value becomes large, and thus can be set to a positive value. Therefore, whether the touch screen is attached with moisture is determined according to the set forward value or the negative value. It should be noted that setting the forward value and setting the negative value only has a simpler recording mode, and other recording methods can also be used. For example, the finger can be set to a positive value when the touch screen is touched, and moisture will be attached. The touch screen is set to a negative value. There are also various situations in which moisture is attached to the touch screen. For example, a little water vapor may be attached to the touch screen, and the little water vapor does not affect the operation of the touch screen. Therefore, the water vapor may not be processed, but the touch screen may be directly calibrated; For example, when the touch screen is attached with more water vapor, the more water vapor has a greater influence on the operation of the touch screen. Therefore, the touch screen cannot be processed to avoid abnormal operation of the touch screen. In order to distinguish the above different situations, in order to perform differentiated processing, according to the signed parameter, when determining whether the touch screen is attached with moisture, a predetermined threshold may be set first, the predetermined threshold corresponding to whether the amount of water vapor required to calibrate the touch screen is required, and then Determining whether the signed parameter exceeds the predetermined threshold; if the determination result is YES, determining that the touch screen is attached with moisture; and/or, if the determination result is negative, determining that the touch screen does not adhere to water vapor. Through such processing, a more accurate determination is made as to whether or not to perform calibration. In the embodiment, a touch screen calibration processing device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again. As used hereinafter, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and conceivable. 2 is a block diagram showing the structure of a touch screen calibration processing apparatus according to an embodiment of the present invention. As shown in FIG. 2, the apparatus includes an acquisition module 22, a determination module 24, and a calibration processing module 26. The apparatus will be described below. The collecting module 22 is configured to collect a change in the capacitance value of the intersection of the horizontal and vertical electrodes of the touch screen; the determining module 24 is connected to the collecting module 22, and is configured to determine whether the touch screen is attached with water vapor according to the change of the capacitance value; the calibration processing module 26, the connection The determination module 24 is configured to not calibrate the touch screen when the determination result of the determination module 24 is YES; and/or to calibrate the touch screen when the determination result of the determination module 24 is NO. 3 is a block diagram of a preferred structure of a touch screen calibration processing apparatus according to an embodiment of the present invention. As shown in FIG. 3, the apparatus includes: a setting module 32, and a setting module, as shown in FIG. 32 for explanation. The setting module 32 is connected to the collecting module 22, and is configured to set a frequency at which the value of the collecting capacitance changes, and collect a change in the capacitance value of the intersection of the horizontal and vertical electrodes of the touch screen according to the set frequency. 4 is a block diagram showing a preferred structure of the judging module 24 in the touch screen calibration processing apparatus according to the embodiment of the present invention. As shown in FIG. 4, the judging module 24 includes a converting unit 42 and a judging unit 44. The judging module 24 will be described below. . The converting unit 42 is configured to convert the capacitance value change into a signed parameter; the determining unit 44 is connected to the converting unit 42 and configured to determine whether the touch screen is attached with moisture according to the signed parameter. FIG. 5 is a block diagram showing a preferred structure of the determining unit 44 in the determining module 24 of the touch screen calibration processing apparatus according to the embodiment of the present invention. As shown in FIG. 5, the determining unit 44 includes a determining subunit 52 and a determining subunit 54, and This determination unit 34 will be described. The determining subunit 52 is configured to determine whether the signed parameter exceeds a predetermined threshold; the determining subunit 54 is connected to the determining subunit 52, and is configured to determine that the touch screen is attached if the determining result of the determining subunit 52 is YES. Water vapor; and/or, in the case where the judgment result of the judgment sub-unit 52 is NO, it is determined that the touch screen is not attached with moisture. FIG. 6 is a structural block diagram of a touch screen according to an embodiment of the present invention. As shown in FIG. 6, the touch screen 60 includes the touch screen calibration processing device 62 according to any one of the above. FIG. 7 is a structural block diagram of a terminal according to an embodiment of the present invention. As shown in FIG. 7, the terminal 70 includes the touch screen 60 shown in FIG. 6. The following description will be made in conjunction with the preferred embodiments. In the related art, when using a capacitive touch screen device, there is often a problem of water vapor interference in winter or summer, that is, when there is moisture on the screen, it is easy to have problems caused by false alarms after waking up. In the example, a method for preventing water vapor from being erroneously generated on a touch screen, and a capacitive touch screen device using the same, that is, the touch screen calibration processing method and device described above, by using the method and device, Water vapor on the screen, before and after the disappearance of water vapor, will not generate false alarm points, improving the user experience. The capacitive touch screen device and the capacitive touch screen waterproof steam method of the capacitive touch screen waterproof steam of the embodiment are respectively described below. FIG. 8 is a structural block diagram of a capacitive touch screen device according to a preferred embodiment of the present invention. As shown in FIG. 8, the capacitive touch screen device may include the following modules: a clock control module 80 (corresponding to the above-described setting module 32), data scanning The module 81 and the data acquisition module 82 (functionally equivalent to the above-described acquisition module 22), the data conversion module 83 and the data processing module 84 (functionally equivalent to the above-described conversion unit 42), and the data storage module 75 (corresponding to the function of the storage module in the related art) The calibration control module 86 (which is functionally equivalent to the above-described calibration processing module 26), the communication module 87, and the application module 88 (corresponding to the communication module and the storage module function in the related art). The above respective modules will be described separately. Clock Control Module 80: Set to set the scan frequency of the capacitive screen. The data acquisition module 82: sequentially scans the entire touch screen by emitting an excitation signal through the electrodes in the driving line direction, and simultaneously receives all the signals in the direction of the sensing line to collect the capacitance of the intersection of the horizontal and vertical electrodes (ie, Coupling capacitance) The change in value. When the human finger touches the capacitive screen, the coupling capacitance value becomes smaller, and when the moisture adheres to the capacitive screen, the coupling capacitance value becomes larger. The data processing module 84: analyzes and processes the data of each channel of the obtained capacitive screen to determine whether moisture is attached to the screen. The programmed value is used to convert the change in capacitance value into another set of signed parameters. If the set of parameters is positive, it is a positive value, which means that the channel is a finger touch. If the parameter is negative, it is a negative value, which means that there is water vapor adhesion in this channel. If there is moisture attached to the screen and calibration occurs, if the water vapor disappears, the original water vapor is turned from the negative value to the positive value, similar to the effect of the finger touch, and an automatic report is generated. Calibration Control Module 86: Calibrate the capacitive screen. Communication module 87: Set to transfer the data of the host side and the touch screen chip end. Application Module 88: Set to receive and prompt the user for data on the underlying driver side. In the preferred embodiment, a method for waterproofing a capacitive touch screen is provided. The method is capable of preventing a false alarm point when the moisture is on the capacitive screen. The method includes the following steps: Step S1, waking up the capacitive touch screen. In step S2, the capacitive screen is scanned at a frequency set by the clock control module, and data of each channel of the touch screen is collected. In step S3, the collected data is converted into a digital signal, and the converted data is transmitted to the data processing module for processing. In step S4, the data processing module processes the transmitted data to determine whether moisture is attached to the screen. The module will set a negative threshold for the target. If the data is less than the negative threshold, it means that water vapor is attached to the screen, then the calibration interface is not called, otherwise the calibration interface is called. In step S5, if the steam is not used, the touch screen is calibrated, otherwise it is not calibrated. Through the above method of capacitive touch screen waterproof steam, using the principle that the finger and the water vapor change the direction of the coupling capacitance of the touch screen, the touch screen wakes up to determine whether moisture is attached to the screen. When the water vapor is attached, the screen is not calibrated. When the water vapor disappears, no automatic reporting will occur and the customer's operation on the touch screen will be affected. At the same time, even if the water vapor does not disappear, the signal generated by the finger is far greater than the signal generated by the water vapor, so it does not affect the customer experience. For example, when moisture is attached to the screen, after the calibration of the touch screen is not performed, the first capacitance change value caused by the moisture attached to the touch screen and the second capacitance change value caused by the finger touching the touch screen are collected; determining the first capacitance change value and the first Whether the difference between the two capacitance change values exceeds a second predetermined threshold; if the judgment result is yes, The touch screen operation process is performed according to the second capacitance change value described above. Therefore, the user can attach the water vapor to the screen of the mobile phone, and the touch screen can be used normally regardless of whether the water vapor disappears or not, and the phenomenon that the touch screen is abnormally operated due to the automatic reporting is not easily generated. The embodiments and preferred embodiments are described below in conjunction with the accompanying drawings. FIG. 9 is a flowchart of a method for a capacitive touch screen according to an embodiment of the present invention. As shown in FIG. 9, the flow includes the following steps: Step S902: Awakening a capacitive touch screen. Step S904, scanning and collecting data on each channel of the touch screen. The capacitive screen is scanned at the frequency set by the clock control module, and the data of each channel of the touch screen is collected. Step S906, performing analysis processing on the acquired data. The data processing module processes the passed data. In step S908, it is determined whether moisture is attached to the screen. Set a negative threshold. If the data is less than the negative threshold, it means that water vapor is attached to the screen. Otherwise, no moisture is attached to the screen. In step S910, the touch screen is calibrated if there is no steam, otherwise the touch screen is not calibrated. FIG. 10 is a flowchart of a waterproof steam algorithm according to an embodiment of the present invention. As shown in FIG. 10, the flow includes the following steps: Step S1002, first setting a threshold of a negative value. Step S1004: Calculate the direction and size of the data of each channel of the acquired touch screen. In step S1006, it is determined whether there is data exceeding the threshold, that is, whether or not moisture is attached to the screen. If the data is negative and exceeds the negative threshold, there is moisture attachment. In step S1008, if the current touch screen has moisture adhesion, the touch screen is not calibrated, otherwise the touch screen is calibrated. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. Perform the steps shown or described, or separate them into individual integrated circuit modules, or Multiple of these modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
Claims
1. 一种触摸屏校准处理方法， 包括： A touch screen calibration processing method, comprising:
采集触摸屏横向和纵向电极交汇点的电容值变化； Collecting a change in the capacitance value of the intersection of the horizontal and vertical electrodes of the touch screen;
根据所述电容值变化， 判断所述触摸屏是否附着有水汽； Determining whether the touch screen is attached with water vapor according to the change in the capacitance value;
在判断结果为是的情况下， 不对所述触摸屏进行校准； 和 /或， 在判断结果 为否的情况下， 对所述触摸屏进行校准。 In the case where the determination result is YES, the touch screen is not calibrated; and/or, if the determination result is negative, the touch screen is calibrated.
2. 根据权利要求 1所述的方法， 其中， 在采集所述触摸屏横向和纵向电极交汇点 的所述电容值变化之前， 还包括： 2. The method according to claim 1, further comprising: before collecting the change in the capacitance value of the intersection of the horizontal and vertical electrodes of the touch screen, further comprising:
设置采集所述电容值变化的频率， 依据设置的所述频率采集所述触摸屏横 向和纵向电极交汇点的所述电容值变化。 And a frequency of collecting the change of the capacitance value is set, and the capacitance value change of the intersection of the horizontal and vertical electrodes of the touch screen is acquired according to the set frequency.
3. 根据权利要求 1所述的方法， 其中， 根据所述电容值变化， 判断所述触摸屏是 否附着有水汽包括： 3. The method according to claim 1, wherein determining whether the touch screen is attached with moisture according to the change in the capacitance value comprises:
将所述电容值变化转换为带符号的参数； Converting the change in capacitance value to a signed parameter;
依据所述带符号的参数， 判断所述触摸屏是否附着有水汽。 Determining whether the touch screen is attached with moisture according to the signed parameter.
4. 根据权利要求 3所述的方法， 其中， 依据所述带符号的参数， 判断所述触摸屏 是否附着有水汽包括： The method according to claim 3, wherein determining whether the touch screen is attached with moisture according to the signed parameter comprises:
判断所述带符号的参数是否超过预定阈值； Determining whether the signed parameter exceeds a predetermined threshold;
在判断结果为是的情况下， 确定所述触摸屏附着有水汽； 和 /或， 在判断结 果为否的情况下， 确定所述触摸屏没有附着水汽。 If the result of the determination is YES, it is determined that the touch screen is attached with moisture; and/or, if the result of the determination is negative, it is determined that the touch screen is not attached with moisture.
5. 一种触摸屏校准处理装置， 包括： 5. A touch screen calibration processing apparatus, comprising:
采集模块， 设置为采集触摸屏横向和纵向电极交汇点的电容值变化； 判断模块，设置为根据所述电容值变化，判断所述触摸屏是否附着有水汽; 校准处理模块， 设置为在所述判断模块的判断结果为是的情况下， 不对所 述触摸屏进行校准； 和 /或， 在所述判断模块的判断结果为否的情况下， 对所述 触摸屏进行校准。 The collecting module is configured to collect a change in the capacitance value of the intersection of the horizontal and vertical electrodes of the touch screen; the determining module is configured to determine whether the touch screen is attached with water vapor according to the change of the capacitance value; and the calibration processing module is set to be in the determining module If the determination result is yes, the touch screen is not calibrated; and/or, if the determination result of the determination module is negative, the touch screen is calibrated.
6. 根据权利要求 5所述的装置， 其中， 还包括：
设置模块， 设置为设置采集所述电容值变化的频率， 依据设置的所述频率 采集所述触摸屏横向和纵向电极交汇点的所述电容值变化。 根据权利要求 5所述的装置， 其中， 所述判断模块包括： 6. The device according to claim 5, further comprising: And a setting module, configured to set a frequency for collecting the change of the capacitance value, and collecting the capacitance value change of the intersection of the horizontal and vertical electrodes of the touch screen according to the set frequency. The device according to claim 5, wherein the determining module comprises:
转换单元， 设置为将所述电容值变化转换为带符号的参数； a conversion unit configured to convert the capacitance value change into a signed parameter;
判断单元， 设置为依据所述带符号的参数， 判断所述触摸屏是否附着有水 汽。 根据权利要求 7所述的装置， 其中， 所述判断单元包括： The determining unit is configured to determine whether the touch screen is attached with water according to the signed parameter. The device according to claim 7, wherein the determining unit comprises:
判断子单元， 设置为判断所述带符号的参数是否超过预定阈值； 确定子单元， 设置为在判断结果为是的情况下， 确定所述触摸屏附着有水 汽； 和 /或， 在判断结果为否的情况下， 确定所述触摸屏没有附着水汽。 一种触摸屏， 包括权利要求 5至 8中任一项所述的装置。 一种终端， 包括权利要求 9所述的触摸屏。
a determining subunit, configured to determine whether the signed parameter exceeds a predetermined threshold; determining a subunit, configured to determine that the touch screen is attached with water vapor if the determination result is yes; and/or, in the determination result is no In the case, it is determined that the touch screen is not attached with moisture. A touch screen comprising the apparatus of any one of claims 5-8. A terminal comprising the touch screen of claim 9.
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| CN201310265443.9 | 2013-06-27 | ||
| CN201310265443.9A CN104252399A (en) | 2013-06-27 | 2013-06-27 | Calibration processing method and device of touch screen, touch screen and terminal |
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| WO2014205934A1 true WO2014205934A1 (en) | 2014-12-31 |
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| WO (1) | WO2014205934A1 (en) |
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