WO2011094972A1 - 一种触摸屏校准参数的获取方法及装置 - Google Patents

一种触摸屏校准参数的获取方法及装置 Download PDF

Info

Publication number
WO2011094972A1
WO2011094972A1 PCT/CN2010/071802 CN2010071802W WO2011094972A1 WO 2011094972 A1 WO2011094972 A1 WO 2011094972A1 CN 2010071802 W CN2010071802 W CN 2010071802W WO 2011094972 A1 WO2011094972 A1 WO 2011094972A1
Authority
WO
WIPO (PCT)
Prior art keywords
calibration
calibration reference
point
sample
reference point
Prior art date
Application number
PCT/CN2010/071802
Other languages
English (en)
French (fr)
Inventor
卢凯
谢军
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP10845057.8A priority Critical patent/EP2518594A4/en
Priority to US13/513,554 priority patent/US20120287087A1/en
Publication of WO2011094972A1 publication Critical patent/WO2011094972A1/zh

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416Control or interface arrangements specially adapted for digitisers
    • G06F3/0418Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment

Definitions

  • the present invention relates to the field of electronic information technology, and in particular, to a method and an apparatus for acquiring touch screen calibration parameters. Background technique
  • the touch screen can be divided into four types, which are a resistive touch screen, an infrared touch screen and a capacitive inductive touch screen, and a surface acoustic wave type touch screen.
  • the resistive touch screen whose surface consists of two layers of transparent material coated with conductive medium, indium oxide (OTI).
  • OTI indium oxide
  • the touch screen control chip scans the XY of the touch screen.
  • the axis is used to obtain the potential of the pressure point, and then the A/D conversion is performed to obtain the physical coordinates generally described, and then the liquid crystal display (LCD, Liquid Crystal Display) point coordinates according to the potential of the touch point X/Y axis and the corresponding position.
  • the proportional relationship of the XY axes converts the A/D converted potential value on the touch screen into a coordinate point on the LCD, which is a so-called logical coordinate.
  • the resistance between the touch points will be different, and as the usage time increases, the resistance of the touch screen itself will change, in order not to affect the accuracy and sensitivity of the touch screen.
  • the calibration parameters must also be modified accordingly.
  • the current calibration method is to display several points on the LCD first, and then the user clicks on these points on the touch screen.
  • the program calculates new calibration parameters based on the points displayed on the LCD and the points clicked by the user.
  • the Chinese Patent Application Publication No. CN101354621A issued on Jan. 28, 2009, the disclosure of which is incorporated herein by reference to the entire entire entire entire entire entire entire content Range if this coordinate point is displayed on the LCD If the upper point is within this range, the point is considered valid.
  • the method process is an improvement of the traditional method, but the essence is to operate on different single points multiple times to complete the calibration. Summary of the invention
  • Embodiments of the present invention provide a method and an apparatus for acquiring touch screen calibration parameters, which are used to provide a touch screen calibration method based on user input, and improve the accuracy of calibration parameters.
  • An embodiment of the present invention provides a method for acquiring a calibration parameter of a touch screen, including:
  • the distance between the sample point and the corresponding calibration reference point is adjusted, and the adjusted sample points and the corresponding calibration reference point are determined. Minimum deviation, the calibration parameter is updated using the minimum deviation.
  • determining the minimum deviation of each adjusted sample point from the corresponding calibration reference point includes:
  • the minimum deviation of each adjusted sample point from the corresponding calibration reference point includes:
  • the embodiment of the present invention further provides a touch screen calibration parameter obtaining device, including: a sample point display module, configured to display at least two preset calibration reference points on the liquid crystal display LCD, obtain physical coordinates of the sample points obtained by clicking corresponding positions of the calibration reference points on the touch screen, and according to the Physical coordinates and calibration parameters display the sample points;
  • a touch screen calibration parameter obtaining device including: a sample point display module, configured to display at least two preset calibration reference points on the liquid crystal display LCD, obtain physical coordinates of the sample points obtained by clicking corresponding positions of the calibration reference points on the touch screen, and according to the Physical coordinates and calibration parameters display the sample points;
  • a calibration parameter determining module configured to: if it is determined that the displayed sample point does not coincide with the corresponding calibration reference point, adjust a distance between the sample point and the corresponding calibration reference point to determine the adjusted sample points The minimum deviation from the corresponding calibration reference point is applied to update the calibration parameter.
  • the calibration parameter determining module determines that the minimum deviation of each adjusted sample point from the corresponding calibration reference point is specifically:
  • the calibration parameter determination module determines that the minimum deviation of each adjusted sample point from the corresponding calibration reference point is specifically:
  • FIG. 1 is a flowchart of a method for acquiring calibration parameters of a touch screen according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a simulation when two calibration reference points are used in an embodiment of the present invention
  • FIG. 3 shows two calibration reference points in the embodiment of the present invention, and the mode after the sample point adjustment is performed.
  • FIG. 5 is a schematic diagram of simulation when there is no calibration deviation in the embodiment of the present invention.
  • FIG. 6 is a schematic diagram of simulation after performing sample adjustment when the calibration reference point is three in the embodiment of the present invention.
  • FIG. 7 is a structural diagram of a touch panel calibration parameter acquiring apparatus according to an embodiment of the present invention. detailed description
  • a touch screen calibration parameter acquisition method is configured to display at least two calibration reference points preset on a liquid crystal display LCD; and obtain a physical point of a sample point obtained by clicking a corresponding position of the calibration reference point on the touch screen Coordinates, and displaying the sample points according to the physical coordinates and the calibration parameters; if it is determined that the displayed sample points do not coincide with the corresponding calibration reference points, adjusting the distance between the sample points and the corresponding calibration reference points And determining a minimum deviation of each adjusted sample point from the corresponding calibration reference point, and applying the minimum deviation to update the calibration parameter.
  • a method for acquiring a calibration parameter of a touch screen As shown in FIG. 1 , a method for acquiring a calibration parameter of a touch screen according to an embodiment of the present invention, the specific implementation steps include:
  • Step 101 Display at least two preset calibration reference points on the LCD;
  • the calibration reference point is a set of points with fixed coordinates.
  • the set of calibration reference points is displayed on the LCD level, and is set to group A.
  • Step 102 Obtain physical coordinates of the sample points obtained by clicking corresponding positions of the calibration reference points on the touch screen, and display the sample points according to the physical coordinates and the calibration parameters;
  • the calibration parameter is a proportional relationship between the relative position of the LCD and the touch screen, that is, a proportional relationship between the logical coordinates of the LCD display and the physical coordinates of the clicked position of the touch screen;
  • the physical coordinates obtained by clicking the corresponding position of the calibration reference point on the touch screen are obtained, and are determined according to the calibration parameter.
  • a proportional relationship between the physical coordinates and the corresponding position coordinates of the LCD converting the physical coordinate values into logical coordinates on the LCD, displaying the sample points according to the logical coordinates, and setting the set of sample points to the B group.
  • Step 103 If the displayed sample point does not coincide with the corresponding calibration reference point, adjust a distance between the calibration reference point and the corresponding calibration reference point, and determine each adjusted sample point and the corresponding calibration reference point. The minimum deviation, and the minimum deviation is updated for the calibration parameter.
  • whether the sampling point is aligned and the calibration can be determined by determining whether the logical coordinate of the sampling point and the logical coordinate of the calibration reference point are the same. The reference points coincide, if they are not the same, they do not coincide.
  • any manner of adjusting the group B point by using the touch screen, the button operation, or directly inputting the adjustment parameter can be applied to the embodiment of the present invention.
  • the user can adjust the B group point multiple times until the distance between the two groups of A and B is the smallest.
  • the user calculates a new parameter according to the data input by the display screen, and then Compared with the saved parameters, the optimal parameters are selected as the calibration parameters input by the user next time.
  • the calibration reference point includes a plurality of, and each calibration reference point corresponds to one sample point. As shown in FIG. 2, if the calibration reference point includes two, the specific implementation manner is:
  • box 2 is the area of the LCD, and the area enclosed by box 1 is the touch screen area.
  • A, B and A, and B are the points displayed on the LCD.
  • the LCD will display two absolute coordinate points, ie, points A and B in the calibration reference point.
  • A, B is the corresponding position of the user clicking the A and B points on the touch screen according to their own click habits and visual effects.
  • the LCD displays the point at which the user clicks on the touch screen according to the proportional relationship between the LCD and the touch screen. If the LCD and the touch screen are completely coincident, and the resistance distribution of the touch screen is checked, and the calibration parameters are extremely accurate, A and A, B and B should be completely coincident.
  • the A', B' two points are moved by an external operation, and the large distance between the two points A', B, and eight and B is adjusted.
  • the "variance method” is taken as an example for description, but is not limited to such a method, and the specific implementation includes:
  • ⁇ , ⁇ , and ⁇ , ⁇ point corresponding coordinates are ( ⁇ , X, A, y), (B, x, B, y), (Ax, Ay), (Bx, By);
  • the minimum value of the sum of the first distance and the second distance (ie, the minimum deviation between the calibration reference point and the sample point) is obtained, and the minimum value is taken as a calibration parameter.
  • D is called A, A
  • D is called A, and A
  • the specific implementation includes:
  • the box 2 indicates the LCD display area
  • the box 1 area is the touch screen area.
  • Points A, B, and C are fixed points on the LCD.
  • A, B, and C are based on the proportional relationship between the LCD and the touch screen.
  • the LCD displays Sample points.
  • the purpose of the user is to move A', B', C, and points as a whole, so that A', B', and C points coincide with A, B, and C points as much as possible.
  • a new parameter indicating the deviation between the two sets of points is calculated, and the optimal parameter is selected as the calibration parameter input by the next user.
  • the "minimum distance method” is used, that is, the distance difference between the two points corresponding to the two points is determined to be the smallest, and the obtained calibration parameters are also optimal, but it is not limited to this method.
  • the distance difference between the two sets of points is D. If the two sets of points are completely coincident, as shown in Figure 4, then D should be 0. If the two sets of points cannot be completely coincident, as shown in Figure 5, the calibration parameters should be selected based on The point when D is closest to 0.
  • an embodiment of the present invention further provides a touch screen calibration parameter obtaining apparatus, which includes a setting module 700, a sample point display module 701, and an adjustment module 702;
  • the setting module 700 is configured to pre-set at least two calibration reference points on the LCD;
  • the sample point display module 701 is configured to display at least two preset calibration reference points on the LCD, and obtain a calibration reference point on the touch screen.
  • the calibration parameters being a proportional relationship between the relative positions of the LCD and the touch screen;
  • the calibration parameter determining module 702 is configured to adjust a distance between the sample point and the corresponding calibration reference point to determine the adjusted sample if it is determined that the displayed sample point does not coincide with the corresponding calibration reference point.
  • the minimum deviation of the point from the corresponding calibration reference point, the minimum deviation is applied to update the school Quasi-parameters.
  • the calibration reference point in the embodiment of the present invention may be two or more. According to the number of calibration reference points, the specific application of the adjustment module 702 includes:
  • the adjustment module 702 determines that the minimum deviation of each adjusted sample point from the corresponding calibration reference point is specifically:
  • the adjustment module 702 determines that the minimum deviation of each adjusted sample point from the corresponding calibration reference point is specifically:
  • the conventional calibration method is to achieve calibration by clicking on a plurality of points on different touch screens, and the method provided by the embodiment of the present invention operates at least two (including two points) at a time to complete the calibration.
  • the method can not only reduce the error, but also improve the accuracy of the calibration.
  • the method provided by the embodiment of the present invention also takes into account the error formed by the user in the process of using the touch screen, and the habit error is new. It is reflected in the calibration parameters and is suitable for the user's usage habits, so as to be more user-friendly.
  • Other embodiments of the invention will be apparent to those skilled in the art without departing from the spirit and scope of the invention. Thus, if these modifications and variations of the invention belong to The invention is also intended to cover such modifications and variations within the scope of the appended claims.

Landscapes

  • 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)

Abstract

本发明公开了一种触摸屏校准参数获取方法,包括:在液晶显示屏LCD上显示预先设定的至少两个校准参考点;获取触摸屏上校准参考点的对应位置被点击所得到的采样点的物理坐标,并根据该物理坐标和校准参数显示所述采样点;若确定显示的采样点与对应的校准参考点不重合,则调整所述采样点与对应的校准参考点之间的距离,确定被调整后的各采样点与对应的校准参考点的最小偏差,应用所述最小偏差更新所述校准参数。本发明同时公开了一种触摸屏校准参数获取装置。本发明提高了用户在校准时的使用体验,帮助用户获得更精确的校准参数。

Description

一种触摸屏校准参数的获取方法及装置 技术领域
本发明涉及电子信息技术领域, 尤其涉及一种触摸屏校准参数的获取 方法及装置。 背景技术
现有技术中大部分终端交互设备都配有触摸屏, 以向用户提供方便快 捷的输入方式。 按照触摸屏的工作原理和传输信息的介质, 可把触摸屏分 成四种, 它们是电阻式触摸屏、 红外线触摸屏和电容感应式触摸屏以及表 面声波式触摸屏。
现在应用最多的还是电阻式触摸屏, 其表面由两层涂满导电介质的透 明材料组成氧化铟 (OTI ), 当触摸屏受到压力时所述两层透明材料导通, 触摸屏控制芯片通过扫描触摸屏的 XY轴来获取受压点的电位,再进行 A/D 转换后得到通常所述的物理坐标, 然后根据触摸点 X/Y轴的电位与对应位 置的液晶显示屏(LCD , Liquid Crystal Display )点坐标的 XY轴的比例关 系,将触摸屏上经过 A/D转换后的电位值转化为 LCD上的坐标点即通常所 说的逻辑坐标。 一般情况下, 即便是同一款触摸屏, 各触摸点之间的阻值 也会不同, 而且随着使用时间的增加, 触摸屏本身的阻值也会发生变化, 为了不影响触摸屏使用的精确度和灵敏度, 校准参数也必须做相应修改。
目前釆用的校准方法是, 先在 LCD上显示几个点, 然后用户在触摸屏 上点击这几个点, 程序根据 LCD上显示的点和用户点击的点来计算新的校 准参数。 公开号为 CN101354621A、 公开日为 2009年 01月 28日的中国专 利申请公开了 "一种触摸屏校准参数的确定方法及其装置", 其在程序中加 入判断的机制,给定用户点击的点一个范围,如果这个坐标点和显示在 LCD 上的点在这个范围内的话, 就认为该点是有效的。 该方法过程是对传统的 方法的改进, 但实质还是多次对不同的单个点进行操作, 来完成校准。 发明内容
本发明实施例提供一种触摸屏校准参数的获取方法及装置, 用于提供 一种基于用户输入的触摸屏校准方法, 提高校准参数的精确度。
本发明实施例提供一种触摸屏校准参数获取方法, 包括:
在液晶显示屏 LCD上显示预先设定的至少两个校准参考点; 获取触摸屏上校准参考点的对应位置被点击所得到的釆样点的物理坐 标, 并根据该物理坐标和校准参数显示所述釆样点;
若确定显示的釆样点与对应的校准参考点不重合, 则调整所述釆样点 与对应的校准参考点之间的距离, 确定被调整后的各釆样点与对应的校准 参考点的最小偏差, 应用所述最小偏差更新所述校准参数。
当所述校准参考点为多个时, 确定被调整后的各釆样点与对应的校准 参考点的最小偏差包括:
获取每个校准参考点与对应的釆样点的距离, 并确定各校准参考点与 对应的釆样点的距离之和的最小值, 将该最小值作为釆样点与校准参考点 的最小偏差。
当所述校准参考点为两个时, 确定被调整后的各釆样点与对应的校准 参考点的最小偏差包括:
确定两个校准参考点与两个釆样点在同一直线上;
获取第一校准参考点与对应的第一釆样点的第一距离和第二校准参考 点与对应的第二釆样点的第二距离, 将第一距离与第二距离的最小和作为 最小偏差。
根据上述方法本法发明实施例还提供一种触摸屏校准参数获取装置, 包括: 釆样点显示模块, 用于在液晶显示屏 LCD上显示预先设定的至少两个 校准参考点, 获取触摸屏上校准参考点的对应位置被点击所得到的釆样点 的物理坐标, 并根据该物理坐标和校准参数显示所述釆样点;
校准参数确定模块, 用于若确定显示的釆样点与对应的校准参考点不 重合, 则调整所述釆样点与对应的校准参考点之间的距离, 确定被调整后 的各釆样点与对应的校准参考点的最小偏差, 应用所述最小偏差更新所述 校准参数。
当所述校准参考点为两个时, 所述校准参数确定模块确定被调整后的 各釆样点与对应的校准参考点的最小偏差具体为:
确定校准参考点与釆样点在同一直线上;
获取第一校准参考点与对应的第一釆样点的第一距离和第二校准参考 点与对应的第二釆样点的第二距离, 将第一距离与第二距离和的最小值作 为最小偏差。
当所述校准参考点为多个时, 所述校准参数确定模块确定被调整后的 各釆样点与对应的校准参考点的最小偏差具体为:
获取每个校准参考点与对应的釆样点的距离, 并确定各校准参考点与 对应的釆样点的距离之和的最小值, 将该最小值作为釆样点与校准参考点 的最小偏差。
应用本发明实施例提供的方法和装置, 无需多次对不同的单个点进行 操作来校准, 可以直接通过一次对一组点进行操作, 来完成校准。 提高用 户在校准时的使用体验, 帮助用户获得更精确的校准参数。 附图说明
图 1为本发明实施例一种触摸屏校准参数获取方法的流程图; 图 2为本发明实施例中校准参考点为两个时的模拟示意图;
图 3 为本发明实施例中校准参考点为两个, 在进行釆样点调整后的模 拟示意图;
图 4为本发明实施例中校准参考点为三个时模拟示意图;
图 5为本发明实施例中没有校准偏差时的模拟示意图;
图 6为本发明实施例中校准参考点为三个时, 进行釆样点调整后的模 拟示意图;
图 7为本发明实施例一种触摸屏校准参数获取装置的结构图。 具体实施方式
本发明实施例中一种触摸屏校准参数获取方法, 在液晶显示屏 LCD上 显示预先设定的至少两个校准参考点; 获取触摸屏上校准参考点的对应位 置被点击所得到的釆样点的物理坐标, 并根据该物理坐标和校准参数显示 所述釆样点; 若确定显示的釆样点与对应的校准参考点不重合, 则调整所 述釆样点与对应的校准参考点之间的距离, 确定被调整后的各釆样点与对 应的校准参考点的最小偏差, 应用所述最小偏差更新所述校准参数。
下面结合说明书附图对本发明的具体实施方式进行详细说明。
如图 1 所示, 本发明实施例一种触摸屏校准参数获取方法, 具体的实 施步骤包括:
步骤 101 , 在 LCD上显示预先设定的至少两个校准参考点;
该校准参考点是坐标固定的一组点, 当用户校准触摸屏时, 则在 LCD 平上显示这一组校准参考点, 设为 A组。
步骤 102,获取触摸屏上校准参考点的对应位置被点击所得到的釆样点 的物理坐标, 并根据该物理坐标和校准参数显示所述釆样点;
其中,所述校准参数为 LCD与触摸屏之间相对位置的比例关系,即 LCD 显示的逻辑坐标与触摸屏被点击位置的物理坐标之间的比例关系;
当用户在触摸屏上点击所述校准参考点的相应位置时, 获取触摸屏上 校准参考点的相应位置被点击所得到的物理坐标, 并根据校准参数, 确定 所述物理坐标与 LCD对应位置坐标的比例关系, 将所述物理坐标值转化为 LCD上的逻辑坐标, 根据该逻辑坐标显示所述釆样点, 将该组釆样点设为 B组。
步骤 103 , 若显示的釆样点与对应的校准参考点不重合, 则调整所述校 准参考点与对应的校准参考点的距离, 并确定被调整后的各釆样点与对应 的校准参考点的最小偏差, 并将该最小偏差更新所述校准参数。
判断釆样点与所述校准参考点是否重合的方法有多种, 在本发明实施 例中可通过判断釆样点的逻辑坐标与校准参考点的逻辑坐标是否相同来确 定釆样点是否与校准参考点重合, 如果不相同, 则不重合。
可以通过上下左右平移 XY坐标, 或者旋转 B组点的其中一个点的方 式, 使 B组点和 A组点的相对位置最小。
调整 B组点时, 可通过使用触摸屏、 按键操作或直接输入调整参数的 够实现调整 B组点的任何方式都可应用到本发明实施例中。
在本发明实施例中, 用户可以多次调整 B组点直到 A、 B两组点之间 的距离最小, 用户调整 B组点的过程中, 根据显示屏输入的数据来计算新 的参数, 然后与保存的参数比较, 选择最优的参数作为用户下次输入的校 准参数。
在本发明实施例中所述校准参考点包括多个, 并且每个校准参考点对 应一个釆样点, 如图 2 所示, 如果校准参考点包括两个时, 具体的实现方 式为:
图中方框 2为 LCD的区域, 方框 1所包围的区域为触摸屏区域, A、 B 和 A,、 B, 都是 LCD上显示的点。 当调用校准程序时, 具体包括:
LCD会显示两个绝对坐标点即校准参考点如图中的 A、 B点。 A,、 B, 是用户根据自身点击习惯和视觉效果在触摸屏上点击 A、 B 点的对应位置 后, LCD根据 LCD和触摸屏的比例关系, 显示用户点击触摸屏的点。 如果 LCD和触摸屏完全重合, 而且触摸屏的电阻分布均勾, 加上校准参数极其 精确的情况下, A和 A,、 B和 B, 应该是完全重合的。
如果 LCD和触摸屏不重合,则通过外部的操作对 A'、 B' 两点进移动, 调整 A'、 B, 和八、 B两点之间的 巨离。
在调整两组点距离的过程中, 根据输入数据移动 A, 和 Β' , 并根据移 动后的 A' 和 B' 计算新参数, 判断新参数是否是最优的, 选择最优的参数 更新保存的校准参数。
判读新参数是否最优的方法有多种, 在该实施例中以 "方差法" 为例 进行说明, 但是不限于此种方法, 具体实现包括:
如果 Α,、 Β, 和八、 Β点对应的坐标分别是(Α, X, A, y)、 ( B, x, B, y)、 (Ax, Ay)、 ( Bx, By);
首先判断两组点是否在同一直线上, 即(Ax-Bx) I ( Ay-By )是否等于 (A, x-B' x) / (A, y-B' y), 如果不在一条直线上, 则将四点调整在一 条直线上, 即将釆样点 A,、 B, 分别调整到校准参考点 A、 B所确定的直 线上, 调整后如图 3所示;
如果(Ax-Bx) I (Ay-By) = ( A, x-B' x ) / ( A, y-B' y)则计算两 组点的距离, 即 A点与 A, 的第一距离 |A, A|, B点与 B, 点的第二距离 |B, B|;
获取第一距离与第二距离和的最小值(即校准参考点与釆样点之间的 最小偏差), 并将该最小值作为校准参数。 D叫 A, A|+|B, B|, 在本发明实 施例中 D叫 A, A|+|B, B 越小, 则说明两组间的误差就越小, 而计算出来 的校准参数越精确。
当所述校准参考点为多个时, 调整所述釆样点, 并确定釆样点与校准 参考点的最小偏差包括, 确定每个釆样点与对应的校准参考点的距离, 获 取所有校准参考点与对应的釆样点距离之和的最小值, 该最小值作为釆样 点与校准参考点的最小偏差, 具体的实现方式包括:
如图 4、 图 5及图 6所示, 方框 2表示 LCD显示区域, 方框 1区域为 触摸屏区域。 A、 B、 C点为 LCD上固定显示的点, A, 、 B,、 C, 点是根据 LCD和触摸屏之间的比例关系, 用户点击触摸屏 A、 B、 C点对应位置时在 LCD上显示的釆样点。 用户的目的就是整体移动 A' 、 B' 、 C, 点, 使 A'、 B'、 C, 点尽可能的与 A、 B、 C点重合。 而在用户调整两组点相对关系的 过程中, 根据用户输入, 计算表示两组点之间偏差的新参数, 并选出最优 的参数作为下次用户输入的校准参数。
判读新参数是否最优的方法有很多种, 这里举例 "最小距离法", 即判 断两组点对应点的距离差最小, 那获取的校准参数也是最优的, 但是不限 于此种方法。
假设两组点的距离差是 D, 如果两组点完全重合, 如图 4所示, 则 D 应该为 0, 如果两组点不能完全重合, 如图 5所示, 则选取校准参数应该是 根据 D最接近 0的时候的点。
如图 7所示, 本发明实施例还提供一种触摸屏校准参数获取装置, 包 括设置模块 700、 釆样点显示模块 701和调整模块 702; 其中:
设置模块 700, 用于在 LCD上预先设定至少两个校准参考点; 釆样点显示模块 701 , 用于在 LCD上显示预先设定的至少两个校准参 考点, 获取触摸屏上校准参考点的对应位置被点击所得到的釆样点的物理 坐标, 并根据该物理坐标和校准参数显示所述釆样点, 该校准参数为 LCD 与触摸屏之间相对位置的比例关系;
校准参数确定模块 702,用于若确定显示的釆样点与对应的校准参考点 不重合, 则调整所述釆样点与对应的校准参考点之间的距离, 确定被调整 后的各釆样点与对应的校准参考点的最小偏差, 应用最小偏差更新所述校 准参数。
其中, 本发明实施例中所述校准参考点可以是两个或多个, 根据校准 参考点的个数, 所述调整模块 702具体应用包括:
当所述校准参考点为两个时, 所述调整模块 702确定被调整后的各釆 样点与对应的校准参考点的最小偏差具体为:
确定校准参考点与釆样点在同一直线上;
获取第一校准参考点与对应的第一釆样点的第一距离和第二校准参考 点与对应的第二釆样点的第二距离, 将第一距离与第二距离之和的最小值 作为最小偏差。
当所述校准参考点为多个时, 所述调整模块 702确定被调整后的各釆 样点与对应的校准参考点的最小偏差具体为:
获取每个校准参考点与对应的釆样点的距离, 并确定各校准参考点与 对应的釆样点的距离之和的最小值, 将该最小值作为釆样点与校准参考点 的最小偏差。
传统的校准方法是通过多次点击不同的触摸屏上的点, 来实现校准, 而本发明实施例提供的方法是一次对至少两个的 (含两个点)一组点进行 操作来完成校准。
相比传统的校准方法, 本方法不但能减小误差, 提高校准的精度, 另 外本发明实施例提供的方法还考虑到了用户使用触摸屏过程中由于个人习 惯形成的误差, 将这种习惯误差在新的校准参数中体现, 适合用户的使用 习惯, 从而更具人性化。 术人员根据本发明的技术方案得出其它的实施方式, 同样属于本发明的技 而不脱离本发明的精神和范围。 这样, 倘若本发明的这些修改和变型属于 本发明权利要求及其等同技术的范围之内, 则本发明也意图包含这些改动 和变型在内。

Claims

权利要求书
1、 一种触摸屏校准参数获取方法, 其特征在于, 在液晶显示屏 LCD 上预先设定至少两个校准参考点、 及其对应的校准参数; 所述方法包括: 在 LCD上显示所述至少两个校准参考点;
获取与所述校准参考点的对应位置被点击所得到的釆样点的物理坐 标, 并根据所述物理坐标和校准参数在 LCD上显示所述釆样点;
确定显示的釆样点与对应的校准参考点不重合时, 调整所述釆样点与 对应的校准参考点之间的距离, 确定被调整后的各釆样点与对应的校准参 考点的最小偏差, 应用所述最小偏差更新所述校准参数。
2、 根据权利要求 1所述的方法, 其特征在于, 每个校准参考点对应一 个釆样点。
3、 根据权利要求 1所述的方法, 其特征在于, 所述方法还包括: 通过 触摸屏方式或按键方式调整所述釆样点与对应的校准参考点之间距离。
4、 根据权利要求 1所述的方法, 其特征在于, 被点击的校准参考点为 两个以上时, 确定被调整后的各釆样点与对应的校准参考点的最小偏差为: 获取每个校准参考点与对应的釆样点的距离, 并确定各校准参考点与 对应的釆样点的距离之和的最小值, 将所述最小值作为各釆样点与对应校 准参考点的最小偏差。
5、 根据权利要求 1所述的方法, 其特征在于, 被点击的校准参考点为 两个时, 确定被调整后的各釆样点与对应的校准参考点的最小偏差为: 确定两个校准参考点与两个釆样点在同一直线上时, 获取第一校准参 考点与对应的第一釆样点的第一距离、 以及第二校准参考点与对应的第二 釆样点的第二距离, 将第一距离与第二距离的最小和作为最小偏差。
6、 根据权利要求 1所述的方法, 其特征在于, 所述根据所述物理坐标 和校准参数显示所述釆样点为: 根据校准参数确定所述物理坐标与 LCD对应位置坐标的比例关系, 将 所述物理坐标值转化为 LCD上的逻辑坐标, 根据所述逻辑坐标显示所述釆 样点。
7、 根据权利要求 6所述的方法, 其特征在于, 所述确定显示的釆样点 与对应的校准参考点不重合为:
将所述釆样点在 LCD上的逻辑坐标与对应的校准参考点的逻辑坐标进 行比较, 不相同时确定显示的釆样点与对应的校准参考点不重合。
8、 一种触摸屏校准参数获取装置, 其特征在于, 包括设置模块、 釆样 点显示模块和校准参数确定模块; 其中:
设置模块, 用于在液晶显示屏 LCD上预先设定至少两个校准参考点、 及其对应的校准参数;
釆样点显示模块, 用于在 LCD上显示所述至少两个校准参考点, 获取 与校准参考点的对应位置被点击所得到的釆样点的物理坐标, 并根据所述 物理坐标和校准参数在 LCD上显示所述釆样点;
校准参数确定模块, 用于确定显示的釆样点与对应的校准参考点不重 合时, 调整所述釆样点与对应的校准参考点之间的距离, 确定被调整后的 各釆样点与对应的校准参考点的最小偏差, 应用所述最小偏差更新所述校 准参数。
9、根据权利要求 8所述的装置, 其特征在于, 所述校准参数确定模块, 进一步用于在被点击的校准参考点为两个, 且确定校准参考点与釆样点在 同一直线上时, 获取第一校准参考点与对应的第一釆样点的第一距离和第 二校准参考点与对应的第二釆样点的第二距离, 将第一距离与第二距离和 的最小值作为最小偏差。
10、 根据权利要求 8所述的装置, 其特征在于, 所述校准参数确定模 块, 进一步用于被点击的校准参考点为多个时, 获取每个校准参考点与对 应的釆样点的距离, 并确定各校准参考点与对应的釆样点的距离之和的最 小值, 将该最小值作为釆样点与校准参考点的最小偏差。
PCT/CN2010/071802 2010-02-02 2010-04-15 一种触摸屏校准参数的获取方法及装置 WO2011094972A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10845057.8A EP2518594A4 (en) 2010-02-02 2010-04-15 METHOD AND DEVICE FOR OBTAINING TOUCH SCREEN CALIBRATION PARAMETER
US13/513,554 US20120287087A1 (en) 2010-02-02 2010-04-15 Touch screen calibration parameter obtaining method and device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010111362.X 2010-02-02
CN201010111362.XA CN101727243B (zh) 2010-02-02 2010-02-02 一种触摸屏校准参数的获取方法及装置

Publications (1)

Publication Number Publication Date
WO2011094972A1 true WO2011094972A1 (zh) 2011-08-11

Family

ID=42448199

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/071802 WO2011094972A1 (zh) 2010-02-02 2010-04-15 一种触摸屏校准参数的获取方法及装置

Country Status (4)

Country Link
US (1) US20120287087A1 (zh)
EP (1) EP2518594A4 (zh)
CN (1) CN101727243B (zh)
WO (1) WO2011094972A1 (zh)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9750451B2 (en) * 2010-03-05 2017-09-05 Socpra Sciences Et Genie S.E.C. Active acoustic pressure mapping system
CN101943981B (zh) * 2010-08-20 2012-08-29 深圳市检验检疫科学研究院 一种电阻式触摸屏的触屏按压信息处理方法
CN102043530B (zh) * 2010-10-21 2015-10-28 宸鸿光电科技股份有限公司 触控面板坐标点校准方法
CN102004578B (zh) * 2010-11-04 2014-02-05 中兴通讯股份有限公司 一种识别触摸屏不规则点的方法及装置
CN102156579A (zh) * 2011-03-31 2011-08-17 华为终端有限公司 一种触摸显示屏坐标的校准方法、装置及终端设备
CN102419648B (zh) * 2011-06-30 2014-11-05 北京汇冠新技术股份有限公司 触摸点坐标获取方法及系统、触摸屏校准方法及系统
KR20130063131A (ko) * 2011-12-06 2013-06-14 삼성전자주식회사 터치 감지 파라미터 설정 방법 및 장치
CN103186329B (zh) * 2011-12-27 2017-08-18 富泰华工业(深圳)有限公司 电子设备及其触摸输入控制方法
CN103186265B (zh) * 2011-12-28 2016-03-09 宇龙计算机通信科技(深圳)有限公司 触摸屏校准方法和装置
CN102591525A (zh) * 2012-01-13 2012-07-18 广州视源电子科技有限公司 一种触摸屏的校准方法、触摸屏系统及校准装置
CN102609146B (zh) * 2012-02-23 2015-01-07 惠州Tcl移动通信有限公司 触摸屏校准方法和装置
KR101388699B1 (ko) * 2012-11-22 2014-04-24 삼성전기주식회사 터치 감지 방법 및 터치 감지 장치
US9075477B2 (en) * 2013-02-11 2015-07-07 Texas Instruments Incorporated Touch panel apparatus and methods
CN104133598B (zh) * 2013-05-03 2017-09-22 杨新龙 一种电子白板系统的免驱动定位校准引导方法及其装置
FR3010624B1 (fr) * 2013-09-13 2015-09-25 Ct Hospitalier Universitaire De Poitiers Procede et systeme de cartographie, procede et systeme d'evaluation de l'efficacite d'une stimulation medullaire
CN103529999B (zh) * 2013-10-31 2017-06-27 广州视睿电子科技有限公司 一种触摸屏的检测方法
CN103995651B (zh) * 2014-05-09 2017-12-22 百度在线网络技术(北京)有限公司 调整滑动操作的理论值的方法和装置
JP2015230518A (ja) * 2014-06-03 2015-12-21 富士通コンポーネント株式会社 タッチパネル装置における検出位置のずれの補正方法、タッチパネル装置及びプログラム
US10133412B2 (en) * 2014-10-07 2018-11-20 General Electric Company Intuitive touch screen calibration device and method
CN104391599B (zh) * 2014-11-11 2017-07-28 福建升腾资讯有限公司 一种平衡精确度与灵敏度的触屏点过滤方法
CN109601015B (zh) * 2017-07-31 2022-06-07 深圳市汇顶科技股份有限公司 触摸屏基准确定方法、装置、触摸屏及电子终端
CN107479765B (zh) * 2017-09-30 2020-07-03 歌尔科技有限公司 基于触控板的坐标校准方法及设备
CN108153451B (zh) * 2018-01-22 2020-11-03 河北华发教育科技股份有限公司 一种基于触摸屏的校准方法及系统
CN109213382A (zh) * 2018-11-26 2019-01-15 重庆津油纳米光学科技有限公司 一种用于触摸屏的校准方法
CN110780771B (zh) * 2019-10-25 2024-03-12 深圳麦科田生物医疗技术股份有限公司 触摸屏校准方法及相关产品
CN111600995A (zh) * 2020-05-15 2020-08-28 上海莉莉丝科技股份有限公司 移动设备以及对移动设备的游戏用户界面进行纠偏的方法
CN112615615B (zh) * 2020-12-08 2023-12-26 安徽鸿程光电有限公司 触控定位方法、装置、设备及介质
CA3147560A1 (en) 2021-02-04 2022-08-04 1004335 Ontario Inc. carrying on business as A D Metro Touch sensor system configuration
GB2608217B (en) 2021-03-12 2023-06-28 1004335 Ontario Inc Carrying On Business As A D Metro Methods for configuring touch sensor system
CN112987979A (zh) * 2021-05-11 2021-06-18 北京易世恒电子技术有限责任公司 一种设备触摸屏校准的方法及装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020070926A1 (en) * 2000-12-11 2002-06-13 Xerox Corporation Touchscreen display calibration using results history
JP2005056088A (ja) * 2003-08-01 2005-03-03 Ricoh Co Ltd タッチパネル付きディスプレイ装置、タッチパネル付きディスプレイ装置の制御方法およびその方法をコンピュータに実行させるためのプログラム
JP2008276310A (ja) * 2007-04-25 2008-11-13 Sharp Corp 座標検出装置、表示装置、及び座標検出方法
CN101354621A (zh) 2008-09-12 2009-01-28 青岛海信移动通信技术股份有限公司 一种触摸屏校准参数的确定方法及其装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5751276A (en) * 1996-05-23 1998-05-12 Microsoft Corporation Method for calibrating touch panel displays
US5777898A (en) * 1996-08-19 1998-07-07 Symbios Logic Inc. Method and apparatus for aligning a digitizing panel with a display device
US7256772B2 (en) * 2003-04-08 2007-08-14 Smart Technologies, Inc. Auto-aligning touch system and method
US7480334B2 (en) * 2003-12-23 2009-01-20 Genesis Microchip Inc. Temporal motion vector filtering
US7372456B2 (en) * 2004-07-07 2008-05-13 Smart Technologies Inc. Method and apparatus for calibrating an interactive touch system
TWI450137B (zh) * 2006-12-11 2014-08-21 Elo Touch Solutions Inc 用於校準觸控螢幕上之目標之方法及設備
EP2120134A4 (en) * 2007-03-07 2012-02-29 Nec Corp DISPLAY TERMINAL WITH TOUCH PANEL FUNCTION AND CALIBRATION METHOD
US8248081B2 (en) * 2007-09-06 2012-08-21 Cypress Semiconductor Corporation Calibration of single-layer touch-sensor device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020070926A1 (en) * 2000-12-11 2002-06-13 Xerox Corporation Touchscreen display calibration using results history
JP2005056088A (ja) * 2003-08-01 2005-03-03 Ricoh Co Ltd タッチパネル付きディスプレイ装置、タッチパネル付きディスプレイ装置の制御方法およびその方法をコンピュータに実行させるためのプログラム
JP2008276310A (ja) * 2007-04-25 2008-11-13 Sharp Corp 座標検出装置、表示装置、及び座標検出方法
CN101354621A (zh) 2008-09-12 2009-01-28 青岛海信移动通信技术股份有限公司 一种触摸屏校准参数的确定方法及其装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2518594A4

Also Published As

Publication number Publication date
US20120287087A1 (en) 2012-11-15
CN101727243B (zh) 2014-04-30
EP2518594A1 (en) 2012-10-31
EP2518594A4 (en) 2014-01-08
CN101727243A (zh) 2010-06-09

Similar Documents

Publication Publication Date Title
WO2011094972A1 (zh) 一种触摸屏校准参数的获取方法及装置
CN101634914B (zh) 基于非均匀触摸屏三点校准方法
CN100363786C (zh) 触摸面板装置的驱动方法
US9024884B2 (en) Touch-sensitive electronic apparatus for media applications, and methods therefor
US6992660B2 (en) Information processing apparatus, program and coordinate input method
US8766943B2 (en) Display having touch sensor and method for improving touch performance thereof
CN103472953B (zh) 一种触摸显示屏的校准方法
CN101533326A (zh) 一种电阻触摸屏坐标校准的方法
US8907910B2 (en) Context based gesture-controlled instrument interface
CN101354621A (zh) 一种触摸屏校准参数的确定方法及其装置
WO2010076321A1 (en) Touch screen controller
JP2003173226A (ja) 情報処理装置、プログラム及び座標入力方法
US8416215B2 (en) Implementation of multi-touch gestures using a resistive touch display
CN102004608A (zh) 一种通过触摸屏设置时间的方法
CN104407731A (zh) 触控显示设备及其压力感应触控方法
KR20140133070A (ko) 터치 감지 장치 및 그의 구동 방법
TW201329791A (zh) 具調校功能之顯示方法與系統
JP5657866B2 (ja) 入力装置、ポインタの表示位置調整方法およびプログラム
CN103487692B (zh) 一种触摸屏的质量检测方法
US20220374129A1 (en) Precise value selection within large value ranges
EP3449346B1 (en) Interactive display overlay systems and related methods
TWI412983B (zh) 在電容式觸控面板上進行多點觸控的偵測方法
CN106681548A (zh) 一种触摸屏校准方法
CN107506077A (zh) 一种电阻式触摸屏校准方法
CN108153451B (zh) 一种基于触摸屏的校准方法及系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10845057

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2010845057

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 13513554

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE