CN202649983U - Touch device and a portable electronic device - Google Patents

Touch device and a portable electronic device Download PDF

Info

Publication number
CN202649983U
CN202649983U CN 201120573486 CN201120573486U CN202649983U CN 202649983 U CN202649983 U CN 202649983U CN 201120573486 CN201120573486 CN 201120573486 CN 201120573486 U CN201120573486 U CN 201120573486U CN 202649983 U CN202649983 U CN 202649983U
Authority
CN
China
Prior art keywords
electrode
portion
sensing unit
touch
plurality
Prior art date
Application number
CN 201120573486
Other languages
Chinese (zh)
Inventor
李振刚
黄臣
杨云
Original Assignee
比亚迪股份有限公司
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
Priority to CN201110211018.2 priority Critical
Priority to CN201110210959 priority
Priority to CN201110210959.4 priority
Priority to CN201110211018 priority
Application filed by 比亚迪股份有限公司 filed Critical 比亚迪股份有限公司
Priority to CN 201120573486 priority patent/CN202649983U/en
Application granted granted Critical
Publication of CN202649983U publication Critical patent/CN202649983U/en

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; 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
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means

Abstract

The utility model provides a touch control device and a portable electronic device. The touch control device comprises: a substrate; a plurality of non-intersect induction units, wherein the plurality of induction units are formed on the substrate, and each induction unit is provided with a first electrode and a second electrode; and a touch screen control chip. An embodiment of the touch control device and the portable electronic device is advantageous in that, structure is simple, and for an induction unit, detection is performed in charging or discharging, RC constants are reduced, time is saved, efficiency is improved, and coordinates are prevented from offset.

Description

触控装置和便携式电子设备 Touch device and a portable electronic device

技术领域 FIELD

[0001] 本实用新型涉及电子设备设计及制造技术领域,特别涉及一种触控装置以及一种便携式电子设备。 [0001] The present invention relates to the design and manufacturing technology of electronic devices, and particularly relates to a touch device and a portable electronic device.

背景技术 Background technique

[0002]目前触摸屏的应用范围从以往的银行自动柜员机,工控计算机等小众商用市场,迅速扩展到手机,PDA (个人数字助理),GPS (全球定位系统),PMP (MP3,MP4等),甚至平板电脑等大众消费电子领域。 [0002] Currently the scope of application of the touch screen of automatic teller machines from the previous bank, industrial computer and other niche commercial market, the rapid expansion of the mobile phone, PDA (personal digital assistant), GPS (Global Positioning System), PMP (MP3, MP4, etc.), even tablet PCs and other mass consumer electronics. 用于触摸屏具有触控操作简单、便捷、人性化的优点,因此触摸屏有望成为人机互动的最佳界面而迅速在便携式设备中得到了广泛应用。 A touch screen for touch operation is simple, convenient and user-friendly advantages, so the touch screen interface is expected to become the best human-computer interaction and rapid has been widely used in portable devices.

[0003] 电容触摸屏通常被分为自电容和互电容两类。 [0003] The capacitive touch screen are generally divided into two types of self capacitance and mutual capacitance. 如图I所示,为现有技术中常见的一种自电容触摸屏的结构图。 As shown in FIG. I, the prior art is a common configuration diagram of a self-capacitance touch screen. 该自电容触摸屏主要有双层的菱形结构感应单元100'和200',其检测原理是对X轴和Y轴分别扫描,如果检测到某个交叉点的电容变化超出了预设范围,则将该行和列的交叉点做为触摸坐标。 The capacitance touch screen rhombus structure mainly bilayer sensing unit 100 'and 200', which is the principle of detecting X and Y axes, respectively, scanning, if it detects a change in capacitance of the intersection outside the predetermined range, then the intersections of rows and columns as the touch coordinates. 虽然该自电容触摸屏的线性度较好,但是经常有鬼点出现,难以实现多点触摸。 Although self-linearity of the capacitive touch screen is better, but often point ghosts appear, it is difficult to achieve multi-point touch. 此外,由于采用双层屏,也会导致结构及成本大幅增加,并且菱形结构在电容变化量很小的情况下会出现坐标飘移,受外界干扰影响大。 In addition, the use of the double screen, and can lead to a substantial increase in construction costs, and the diamond structure in a small amount of capacitance change happens coordinate drifted outside interference big impact.

[0004] 如图2a所示,为现有技术中常见的另一种自电容触摸屏的结构图。 As shown in [0004] Figure 2a, the prior art is another configuration diagram of a self-capacitance touch screen common. 该自电容触摸屏采用三角形图形屏结构。 The capacitance touch screen panel structure triangular pattern. 该自电容触摸屏包括基板300'、设置在基板300'之上的多个三角形感应单元400'、和每个三角形感应单元400'相连的多个电极500'。 A plurality of triangular sensing units of the self-capacitance touch screen includes a substrate 300 ', disposed in the substrate 300' on 400 ', the sensing unit 400 and each triangle' connected to the plurality of electrodes 500 '. 如图2b所示,为三角形自电容触摸屏的检测原理。 2b, the detection principle of a triangular self-capacitance touch screen. 如图所示,椭圆表示手指,S1、S2表示手指与两个三角形感应单元的接触面积。 As shown, a finger is elliptic, S1, S2 represents the contact area of ​​the finger with two triangular sensing unit. 假设坐标原点在左下角,则横坐标X=S2/(S1+S2)*P,其中,P为分辨率。 Assumed that the coordinate origin at the lower left, the abscissa X = S2 / (S1 + S2) * P, wherein, P is the resolution. 当手指向右移动时,由于S2不是线性增大,所以X坐标存在一个偏差。 When the finger is moved rightward, since the increase in S2 it is not linear, there is a deviation of the X coordinate. 从上述原理可以看出,目前的三角形感应单元是单端检测,即只从一个方向检测,然后通过算法算出两个方向的坐标。 As can be seen from the above principle, the triangular sensing current detecting unit is a single-ended, i.e., detects only from one direction, then the coordinates of two directions is calculated by the algorithm. 虽然该自电容触摸屏结构更为简单,但并没有针对屏幕的电容感应进行优化,电容变化量小,从而导致信噪比不够。 Although the self-capacitance touch screen structure is more simple, but not optimized for capacitive sensing screen, a small amount of capacitance variation, leading to noise ratio is not enough. 此外,由于该感应单元为三角形,当手指横向移动时面积不是线性增大,因此线性度较差,导致了坐标计算发生偏移,线性度不够好。 Further, since the sensing means is a triangle, when the lateral movement of the finger area is not linearly increased, thus the linearity is poor, resulting in the shifted coordinate calculation, linearity good enough.

[0005] 此外,该电容感应单元输出电容变化量很小,达到飞法级,其电缆杂散电容的存在,对测量电路提出了更高的要求。 [0005] In addition, the capacitive sensing cell output capacitance variation is small, to fly stage method, the presence of stray capacitance of the cable which, for a higher measuring circuit requirements. 而且,杂散电容会随温度、位置、内外电场分布等诸多因素影响而变化,干扰甚至淹没被测电容信号。 Furthermore, stray capacitance varies with many factors can affect the temperature, position, and outside the electric field distribution, the interference signal measured capacitance even submerged. 此外,对于单层电容来说,由于Vcom电平信号的影响会对感应电容形成严重的干扰,其中,Vcom电平信号是为了防止LCD屏幕液晶老化而不停翻转的电平信号。 Further, for a single layer capacitor, because the influence of the level of the signal Vcom be a serious disturbance sensing capacitor, wherein, the level of signal Vcom to prevent the LCD screen of the liquid crystal aging kept inverted level signal.

实用新型内容 SUMMARY

[0006] 本实用新型的目的旨在至少解决上述技术缺陷之一,特别是解决或避免出现现有自电容触摸屏中的上述缺点。 [0006] The object of the present invention to solve at least one of the above technical defects, in particular, to solve the above-described disadvantages of the prior or avoid the self-capacitance touch screen.

[0007] 本实用新型实施例第一方面提出了一种触控装置,包括:基板;多个不相交的感应单元,所述多个感应单元形成在所述基板之上,且每个感应单元的两端分别具有第一电极和第二电极;触摸屏控制芯片,所述触摸屏控制芯片包括充电器件、放电器件和检测器件,其中,所述充电器件,用于在第一次充电过程中,向所述多个感应单元中的一个感应单元的第一电极施加高电平信号并将第二电极接地以在所述一个感应单元被触摸时对所述一个感应单元产生的自电容进行第一次充电;在第二次充电过程中,向所述多个感应单元中的一个感应单兀的第一电极和第二电极施加高电平信号,或者,向所述第一电极和第二电极中的一个施加高电平信号并将所述第一电极和第二电极中的另一个断开,以对所述自电容进行第二次充电;以及在第三次充电过程中,向 [0007] The first aspect of the present invention proposes an embodiment of a touch device, comprising: a substrate; a plurality of disjoint sensing units, each sensing unit of said plurality of sensing cells formed on said substrate, and the both ends having a first electrode and a second electrode; touch screen control chip, the touch screen controller chip includes a charger member, a discharge device and a detection device, wherein said charging means for charging the first process, the a first electrode of said plurality of sensing means sensing units applied to the second electrode is grounded and a high level signal for the first time when the self-capacitance sensing unit is a touch sensing unit to a said generated charge; in the second charging process, a high level signal is applied to the first electrode of one of said plurality of sensing Wu single sensing unit and a second electrode, or to the first electrode and the second electrode a high level signal is applied and to the other of said first and second electrodes is turned off to a second charge from the capacitor; and in the third charging process, the 所述多个感应单元中的一个感应单元的第一电极施加高电平信号并将所述第二电极接地,以对所述自电容进行第三次充电,所述放电器件,用于在所述充电器件对所述自电容第二次充电之后对所述自电容进行第一次放电,以及在所述充电器件对所述自电容第三次充电之后,将所述一个感应单元的第一电极和第二电极接地,或者,将所述第一电极和所述第二电极中的一个接地并将所述第一电极和所述第二电极中的另一个断开以对所述自电容进行第二次放电,和所述检测器件,用于从对应的所述第一电极或第二电极进行检测以获得所述第一次充电和所述第二次充电之间的第一检测变化值,及从对应的所述第一电极或第二电极进行检测以获得所述第三次充电和所述第二次放电之间的第二检测变化值,和控制及计算器件,用于对所述充电器件、放电器件、 A plurality of electrodes of the first sensing unit sensing unit and a high level signal is applied to the second electrode is grounded, a third time to charge the capacitor from the discharging means, for the the said charging member after the self-capacitance of the second capacitor from the first discharge charging, the charger member and the third time since the charging capacitor, the first one sensing unit a ground electrode and a second electrode, or the other one of said first ground electrode and the second electrode and the first electrode and the second electrode is disconnected from the capacitor to the a second discharge, and the detection means for detecting from the corresponding first or second electrode to obtain a first detection of a change between the first charge and the second charge value, and detects from the corresponding first or second electrode to obtain a second detected value of the third variation of the charge and discharge between the second and a control and calculation means for the charging means, the discharge device, 测器件进行控制,并根据第一检测变化值和第二检测变化值计算所述自电容至所述第一电极之间的第一电阻和所述自电容至所述第二电极之间的第二电阻之间的比例关系,并根据所述第一电阻和所述第二电阻之间的比例关系确定触摸位置。 Test control device, and to calculate the self-capacitance to the second resistor between the second electrode of the first electrode between the first and the self-capacitance detecting a change in value according to a first change value and the second detection the ratio between the two resistors, and the touch position is determined according to the proportional relationship between the first resistor and the second resistor.

[0008] 本实用新型实施例第二方面还提出了一种便携式电子设备,包括如上所述的触控 [0008] A second aspect of the present invention further provides an embodiment of a portable electronic device comprising a touch as described above

>JU ρςα装直。 > JU ρςα loaded straight.

[0009] 本实用新型实施例的触摸屏检测设备中的感应单元采用双端检测,即感应单元的两端均具有电极,且每个电极均与触摸屏控制芯片的对应管脚相连,在进行触摸检测时通过感应单元自身即可实现对触摸点的定位。 [0009] The touch screen detection apparatus according to the present invention embodiment dual sensing unit of the detector, i.e., both ends of the sensing unit has the electrodes, and each electrode is connected with a corresponding pin of the touch screen control chip, the touch detection is performed when positioning itself can be realized by the sensing unit of the touch point.

[0010] 更为重要的是,本实用新型通过计算第一电阻和第二电阻之间比例实现触摸位置的确定,因此相对于目前的菱形或三角形设计来说,由于在确定触摸位置时,无需计算自电容的大小,且自电容的大小不会影响触摸位置的精度,从而提高了测量精度,改善了线性度。 [0010] More importantly, the ratio between the present invention by calculating the first and second resistors is implemented to determine the touch position, and therefore with respect to the current diamond or triangular design, since in determining the touch position, without calculated from the size of the capacitor, and from the size of the capacitor will not affect the accuracy of the touch position, thus improve the measurement accuracy, improved linearity.

[0011] 本实用新型实施例通过对感应单元两端的电极施加电平信号,如果该感应单元被触碰,触摸物体(例如手指)则会与该感应单元形成自电容,因此本实用新型通过施加的电平信号可对该自电容进行充电,并根据第一电阻和第二电阻之间的比例关系确定触摸屏上的触摸位置。 [0011] Example embodiment of the present invention is applied to the electrodes by a signal level at both ends of the sensing unit, if the sensing unit is touched, touch object (e.g., a finger) will form a self-capacitance of the sensing unit, so by applying the present invention the level of the signal from the capacitor can be charged, and determining a touch location on the touch screen in accordance with a proportional relationship between the first and second resistors. 且通过本实用新型实施例的对自电容进行两次充电的检测方式,以抵消某些不可测量的物理参数或者减少物理量的测量,从而在保证检测速度的前提下,有效地提高检测精度。 And the self-capacitance of the present invention by an embodiment of two detection methods of charging, to offset some of the physical parameter measured or reduce non-physical measurement, thereby ensuring detection speed premise effectively improve the detection accuracy.

[0012] 本实用新型实施例提出了一种新颖的自电容检测方式,在感应单元被触摸时,触摸点就可将该感应单元分为两个电阻,从而在进行自电容检测的同时考虑这两个电阻就可以确定触摸点在该感应单元上的位置。 [0012] Example embodiment of the present invention, a novel self-capacitance detection method, when the sensing unit is touched, the touch point sensing unit can be divided into two resistors, thereby performing simultaneously the capacitance detection from this consideration two resistors can determine the position of the sensing unit on the touch point. 本实用新型实施例的结构简单,并且对于一个感应单元来说,在充电或放电时进行检测,不仅能够降低RC常数,节省时间提高效率,并且还能够保证坐标不会偏移。 Simple structure embodiment of the present invention, and for a sensing unit, the detecting during charging or discharging, not only reduces the RC constant, to save time and improve efficiency, and also to ensure that coordinates do not. 此外,本实用新型实施例还可以有效提高电路的性噪比,降低电路噪声,提高感应线性度。 Further, the present invention further embodiment can improve signal to noise ratio of the circuit, the noise reduction circuit, enhance the response linearity. 另外,在检测过程中由于对被触摸的感应单元进行充电,因此其中会产生小电流,能够很好地消除Vcom电平信号对触摸屏中感应单元产生的自电容的影响,因此可以相应地消除屏幕屏蔽层及相关工序,从而可以在增强了抗干扰能力的同时进一步降低成本。 Further, in the detection process due to the touch sensing unit is charged, and therefore which produces a small current, perfectly eliminate self-capacitance impact Vcom level signal touchscreen induced generation unit, it is possible to correspondingly eliminate screen shield and related processes, the cost can be further reduced while the interferences.

[0013] 本实用新型附加的方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本实用新型的实践了解到。 [0013] Additional aspects of the present invention and advantages will be set forth in part in the description which follows, from the following description in part will become apparent, the present invention, or learned from the practice.

附图说明 BRIEF DESCRIPTION

[0014] 本实用新型上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解,其中: [0014] The present invention described above and / or additional aspects and advantages from the following description of embodiments in conjunction with the accompanying drawings of the embodiments will become apparent and more readily appreciated, wherein:

[0015] 图I为现有技术中常见的一种自电容触摸屏的结构图; [0015] Figure I is a common form of prior art self-capacitance touch screen configuration diagram;

[0016] 图2a为现有技术中常见的另一种自电容触摸屏的结构图; [0016] Figure 2a is a prior art common structural view of another self-capacitance touch screen;

[0017] 图2b为现有技术中常见的另一种自电容触摸屏的检测原理图; [0017] Figure 2b is common in the prior art schematic of another self-test capacitive touch screen;

[0018] 图3为本实用新型实施例触控装置的检测原理示意图; [0018] FIG 3 Example novel detection principle schematic diagram of a touch device of practical embodiment;

[0019] 图4为本实用新型实施例的触摸检测方法流程图; [0019] FIG 4 an embodiment of the present invention, a flowchart of method for detecting a touch;

[0020] 图5为本实用新型实施例的矩形感应单元被触摸的示意图; [0020] FIG. 5 is a schematic view of an embodiment of the invention is a rectangular touch sensing unit;

[0021] 图6a为本实用新型一个实施例的感应单元结构图; [0021] Figure 6a of the present novel configuration diagram of a sensing unit of a practical embodiment;

[0022] 图6b为本实用新型一个实施例的感应单元结构图; [0022] a new sensing cell structure diagram of an embodiment of the present utility Figure 6b;

[0023]图7a为本实用新型另一个实施例触摸屏检测设备结构图; [0023] FIG. 7a novel another useful embodiment of the present detecting apparatus configuration diagram of a touch screen embodiment;

[0024] 图7b为本实用新型另一个实施例触摸屏检测装置结构图; Example detecting means touch screen configuration diagram of another embodiment of the new [0024] FIG. 7b present utility;

[0025] 图8为本实用新型实施例的感应单元被触摸时的示意图; [0025] Figure 8 a schematic view of an embodiment of the invention is a touch sensing unit present;

[0026] 图9a为本实用新型再一个实施例触摸屏检测设备结构图; [0026] FIG. 9a still another embodiment of the present novel touch screen detection apparatus configuration diagram of a practical embodiment;

[0027] 图9b为本实用新型再一个实施例触摸屏检测装置结构图; New still another embodiment a configuration diagram of a touch screen detecting apparatus embodiment [0027] FIG. 9b present utility;

[0028] 图10为本实用新型实施例的感应单元被触摸时的示意图; [0028] FIG 10 a schematic view of the sensor element of the present embodiment is new touch utility;

[0029] 图11为本实用新型一个实施例的触控装置示意图; [0029] FIG 11 a schematic view of a touch device of the present embodiment is a novel and practical;

[0030]图12为本实用新型实施例触摸屏控制芯片的结构图。 [0030] FIG. 12 is a structural diagram of the new touchscreen controller chip of practical embodiment.

具体实施方式 Detailed ways

[0031] 下面详细描述本实用新型的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。 [0031] The following detailed embodiments of the present invention described embodiments, exemplary embodiments of the embodiment shown in the accompanying drawings, wherein same or similar reference numerals designate the same or similar elements having same or functionally similar elements. 下面通过参考附图描述的实施例是示例性的,仅用于解释本实用新型,而不能解释为对本实用新型的限制。 By following with reference to the embodiments described are exemplary only for explaining the present invention, not be construed to limit the utility of this novel pair.

[0032] 本实用新型实施例提出了一种新颖的自电容检测方式,在感应单元被触摸时,触摸点可以将该感应单元分为两个电阻,在进行自电容检测的同时考虑这两个电阻就可以确定触摸点在该感应单元上的位置。 [0032] Example embodiment of the present invention, a novel self-capacitance detection method, when the sensing unit is touched, the sensing unit may be a touch point is divided into two resistors, capacitance detection is performed from consider both resistance can be determined on the position of the sensing unit of the touch point. 如图3所示,为本实用新型实施例触控装置的检测原理示意图。 3, the embodiment of the present novel detection principle schematic of practical embodiment of the touch device. 当手指触摸该感应单元时,将相当于将该感应单元分割为两个电阻,这两个电阻的阻值与触摸点的位置相关。 When a finger touches the sensing means, the sensing means corresponding to the division of two resistors, the resistance associated with the position of a touch point of these two resistors. 例如,如图所述,当触摸点与第一电极较近时,则电阻Rl就较小,而电阻R2就较大;反之,当触摸点与第二电极较近时,则电阻Rl就较大,而电阻R2就较小。 For example, as described, when the touch point is close to the first electrode, the resistance Rl on the small and the large and resistor R2; the other hand, when the touch point closer to the second electrode, the resistance Rl on the more large, and the resistance R2 is small. 因此,本实用新型通过对电阻Rl和R2的检测就可以确定触摸点在该感应单元上的位置。 Accordingly, the present invention is by detecting resistors Rl and R2 can determine the position of the touch on the sensing unit. 在本实用新型的实施例中,通过多种方式检测电阻Rl和R2,例如可通过检测第一电极和第二电极的电流检测变化值、自电容检测变化值、电平信号检测变化值和电荷变化量中的一种或多种,从而根据这些检测变化值获得电阻Rl和R2。 In the present embodiment of the invention, a number of ways and the detection resistor Rl R2, for example, detecting a change in current value detected by the first electrode and the second electrode, a capacitance detecting a change from the value, detecting a change in the level signal and the charge value the amount of change of one or more so as to obtain resistors Rl and R2 based on these detected values ​​changes. 并且本实用新型通过对由触摸点形成的自电容进行两次充电以抵消某些不可测量的物理参数或者减少物理量的测量,提高测量精度。 And charging was performed twice to cancel certain non-physical parameter measured or decrease physical measurement, improve the measurement accuracy by the present invention is formed by a self-capacitance touch point.

[0033] 需要说明的是,在本实用新型的实施例中,上述第一电极和第二电极的功能相同,且二者可以互换,因此在上述实施例中,既可以从第一电极检测也可以从第二电极检测,只要能满足在充电、放电或检测时需要有电流经过第一电阻和第二电阻这一要求即可。 [0033] Incidentally, in the present embodiment of the invention, the first electrode and the second electrode of the same functions, and both are interchangeable, so in the above embodiment, may be detected from the first electrode from the second electrode may be detected, as long as satisfying the charge or discharge current is detected when needed through the first and second resistors to this requirement.

[0034] 在本实用新型的实施例中,可以以扫描的方式依次向多个感应单元施加相应的电压,同时在检测时也可以以扫描的方式依次进行检测。 [0034] In an embodiment of the present invention may be applied sequentially in a scanning manner corresponding to the plurality of voltage sensing unit can also sequentially detects a scanning manner upon detection.

[0035] 如图4所示,为本实用新型实施例的触摸检测方法流程图,该流程图结合图3所示的原理图一同进行说明。 [0035] As shown in FIG 4, the touch detecting method of the present novel practical embodiment of a flow chart, showing the principle in conjunction with the flowchart shown in FIG. 3 will be described together. 该方法包括以下步骤: The method comprises the steps of:

[0036] 步骤S401,向多个感应单元中的一个感应单元的第一电极施加高电平信号并将第二电极接地以在一个感应单元被触摸时对一个感应单元产生的自电容进行第一次充电。 [0036] step S401, the second electrode is grounded and a high level signal is applied to the first electrode a plurality of sensing means sensing cells at a self-capacitance touch sensing unit of a sensing unit is generated by a first charging times. 在该实施例中,向第一电极施加高电平信号Vcc。 In this embodiment, a high level signal Vcc is applied to the first electrode.

[0037] 如果此时该感应单元被手指或其他物体触摸,则该感应单元将会产生自电容Cl(参照图3),因此通过施加的高电平信号Vcc就可对自电容进行充电,此时施加在自电容上的电压为V2=VccR2/ (R1+R2)。 [0037] At this time, if the sensing unit is touched with a finger or other object, the sensing unit will generate a self-capacitance CI (see FIG. 3), and therefore can be charged by the self-capacitance of the high level signal of Vcc is applied, this when a voltage is applied from the capacitor is V2 = VccR2 / (R1 + R2). 此外,在本实用新型的实施例中,通过对自电容的充电,还可以提闻自电容的检测精度。 Further, in the embodiment of the present invention by charging the self-capacitance, also the detection accuracy can be improved smell self-capacitance.

[0038] 在本实用新型的一个实施例中,如果该感应单元没有被触摸,则后续将无法检测到自电容的存在,因此可判断其未被触摸。 [0038] In one embodiment of the present invention embodiment, if the sensing unit is not touched, then the following will not detect the presence of self-capacitance, and therefore it can be judged not touched.

[0039] 步骤S402,向一个感应单元的第一电极和第二电极施加高电平信号,或者,向第一电极和第二电极中的一个施加高电平信号并将第一电极和第二电极中的另一个断开,以对自电容进行第二次充电。 [0039] In step S402, applied to the first electrode and the second electrode of a high-level signal sensing unit, or a high level signal is applied to the first electrode and the first electrode and the second electrode and a second the other electrodes disconnected from the capacitor to a second of the charge.

[0040] 在本实用新型实施例中,可向第一电极和第二电极均施加高电平信号;或者,向第一电极施加高电平信号,而将第二电极断开;或者,向第二电极施加高电平信号,而将第一电极断开。 [0040] In the embodiment of the present invention may be applied to both the first and second electrodes to the high level signal; Alternatively, a high level signal is applied to the first electrode and the second electrode is disconnected; or, to a high level signal is applied to the second electrode, the first electrode is disconnected. 另外需指出的是,由于施加的高电平信号为已知量,故两次所施加的高电平信号可以相同或者不相同,均不影响推导过程。 Further to be noted that, due to the high-level signal of a high level signal is applied to a known quantity, it may be applied twice a same or different, do not affect the derivation process. 在该实施例中,向第一电极和/或第二电极施加与步骤S401中相同的高电平信号Vcc。 In this embodiment, the same high level signal is applied to Vcc and step S401 to the first electrode and / or the second electrode. 此时施加在自电容上的电压为Vcc。 At this time, since the voltage applied to the capacitor is Vcc.

[0041 ] 步骤S403,从对应的第一电极或第二电极进行检测以获得第一次充电和第二次充电之间的第一检测变化值,并对自电容进行第一次放电。 [0041] step S403, the inspection on the corresponding first electrode or the second electrode to obtain a first detected value changes between the first charge and the second charge, and be discharged from the first capacitor. 在本实用新型的实施例中,所述的对应是指以下情况,例如,当一个感应单元的第一电极和第二电极均接高电平信号进行充电时,从第一电极和第二电极均可进行检测;如当第一电极接高电平信号,第二电极断开时,则只能从第一电极检测;反之,当第二电极接高电平信号,第一电极断开时,则只能从第二电极检测。 In the present embodiment of the invention, the means corresponding to the case, for example, when the first and second electrodes are connected to a sensing unit for charging the high level signal from the first and second electrodes can be detected; such as when a high level signal of the first electrode, the second electrode is disconnected from the first electrode can only be detected; the other hand, when a high level signal of the second electrode, the first electrode is disconnected , the only detected from the second electrode.

[0042] 在本实用新型的实施例中,只要第二次充电的方式与第一次充电的方式不同,就可引起自电容中电荷量的变化。 [0042] In an embodiment of the present invention, as long as the second embodiment and the first charge charged in different ways, can cause changes in amount of charge from the capacitor. 此外,在检测完后需对自电容进行放电以便进行下一次充放电过程。 Further, after detecting the need to charge a capacitor from a discharge for the discharge process.

[0043] 在本实施例中,假设第一检测变化值为AQ1。 [0043] In the present embodiment, it is assumed a first detectable change is AQ1. 以下以第一检测变化值和第二检测变化值为电荷变化量为例进行描述,但是能够反应电阻Rl和R2之间关系的其他检测变化值,例如电平信号、电流等也均可采用。 The following changes to the first detection value and the second variation amount detecting a change of charge is described as an example, but can detect a change in the reaction of other relationship between the resistance value Rl and R2, for example, level signal, current, etc. can be employed.

[0044]其中,AQl= (Vcc-V2) Cl=VccClRl/(R1+R2) (I) [0044] wherein, AQl = (Vcc-V2) Cl = VccClRl / (R1 + R2) (I)

[0045] 其中,V2=VccR2/(Rl+R2),此时第一次充电时自电容的电压为V2,该自电容电压可在第一次充电时检测得到。 [0045] where, V2 = VccR2 / (Rl + R2), the voltage from the capacitor case when the first charge is V2, the self-capacitance can be detected voltage obtained at the first charge.

[0046] 步骤S404,向多个感应单元中的一个感应单元的第一电极施加高电平信号并将第二电极接地以对自电容进行第三次充电。 [0046] step S404, the second electrode is grounded and a high level signal is applied to the first electrode a plurality of sensing means sensing units to perform self-capacitance of the third charge. 在该实施例中,向第一电极施加高电平信号Vcc,通过施加的高电平信号Vcc就可对自电容进行充电,此时施加在自电容上的电压为V2=VccR2/(Rl+R2),因此自电容上的电荷量为V2Cl=VccClR 2/(R1+R2)。 In this embodiment, a high level signal is applied to the first electrode Vcc, the self-capacitance can be charged by a high level signal is applied to Vcc, the voltage applied at this time since the capacitor is V2 = VccR2 / (Rl + R2), and therefore the amount of charge from the capacitor to the V2Cl = VccClR 2 / (R1 + R2).

[0047] 步骤S405,将一个感应单元的第一电极和第二电极接地,或者,将第一电极和第二电极中的一个接地并将第一电极和第二电极中的另一个断开,以对自电容进行第二次放电。 [0047] step S405, the first electrode and the second electrode means to ground a sensor, or the other one of the first ground electrode and the second electrode and the first electrode and the second electrode is disconnected, to self-discharge the second capacitor.

[0048] 具体地,可将一个感应单元的第一电极和第二电极均接地,或者,将第一电极接地,而第二电极断开,或者,将第二电极接地,而将第一电极断开,以对自电容进行第二次放电。 [0048] Specifically, a first electrode and a second electrode of the sensing cell are grounded, or the first ground electrode and the second electrode is disconnected, or the second electrode is grounded, and the first electrode turned off to perform the self-capacitance of the second discharge.

[0049] 步骤S406,从对应的第一电极或第二电极进行检测以获得第三次充电和第二次放电之间的第二检测变化值。 [0049] step S406, detects the corresponding first or second electrode to obtain a second detected value changes between the third and second discharge charge.

[0050] 在本实施例中,假设第二检测变化值为AQ2。 [0050] In the present embodiment, change detection is assumed that the second AQ2. 第二检测变化值需采用与步骤S403中的第一检测变化值相同的检测变化值,即在本实用新型实施例中均为电荷变化量。 Detecting a change requires the use of a second value to the first change value detection step S403 detects a change of the same value, i.e., both the amount of change in the charge present invention embodiment. 同样地,在此所述“对应的”也是相对的概念,例如在第一次放电时,如果第二电极断开,则只能从第一电极进行检测。 Similarly, the herein "corresponding to" is a relative concept, for example, when the first discharge, if the second electrode is disconnected, the only detected from the first electrode.

[0051]其中,AQ2=V2Cl=VccClR2/(Rl+R2) (2) [0051] wherein, AQ2 = V2Cl = VccClR2 / (Rl + R2) (2)

[0052] 步骤S407,根据第一检测变化值和第二检测变化值计算自电容至第一电极之间的第一电阻和自电容至第二电极之间的第二电阻的比例关系,并根据第一电阻和第二电阻的比例关系确定触摸位置。 [0052] step S407, based on the first detection value and the second variation detecting a change of the first value calculated from the proportional relationship between the resistance and the capacitor to the first electrode from the second electrode to the capacitance between the second resistor, and in accordance with the ratio between the first and second resistors determine the touch location. 在本实用新型的一个实施例中,通过式(I)和(2 )所表示的自电容电荷变化量可以计算出Rl与R2的比例关系,由于图形的规则线性关系,则可以计算出触摸点所在的横坐标的位置,及自电容Cl所在的位置。 In the novel a present embodiment example, by the formula (I) can be calculated the ratio between Rl and R2 and the capacitive charge variation amount from (2) is due to the rule linear pattern, it is possible to calculate the touch point a position where the abscissa, and the position where the self-capacitance Cl.

[0053] 在本实用新型的实施例中,R1/R2=AQ1/AQ2,因此通过本实用新型实施例就可获得Rl和R2之间的比例关系。 [0053] In the present embodiment of the invention, R1 / R2 = AQ1 / AQ2, thus can be obtained a proportional relationship between Rl and R2 embodiment of the present invention.

[0054] 在本实用新型的实施例中,如果感应单元为门形感应单元或L形感应单元,则通过第一电阻和第二电阻之间的比值就可确定在触摸屏上的触摸位置,以下将结合具体的例子进行详述。 [0054] In the present invention embodiments can determine the touch location on the touch screen if the sensing unit is a gate-shaped or L-shaped sensing unit sensing means, the ratio between the first and second resistors through, the following specific examples will be described in detail in conjunction. 但在本实用新型的其他实施例中,如果感应单元为矩形感应单元或蛇形(但整体上看相当于矩形)感应单元,则步骤S407只能计算出在触摸屏第一方向上的触摸位置,该第一方向可以是感应单元的长度方向(例如触摸屏的水平方向)。 However, in other embodiments of the present invention embodiment, if the sensing unit sensing unit or serpentine rectangular (rectangle, but on the whole the equivalent of) the sensing unit, only the step S407 is calculated touch position in the first direction of the touch screen, the first direction may be a longitudinal direction (e.g. horizontal direction of the touch screen) of the sensing unit.

[0055] 如果感应单元为矩形感应单元或蛇形(但整体上看相当于矩形)感应单元,则还需要根据感应单元的位置确定在第二方向上的触摸位置。 [0055] If the sensing unit sensing unit or serpentine rectangular (rectangle, but on the whole the equivalent of) the sensing unit, it is also necessary to determine the touch position in the second direction according to the position sensing unit. 在本实用新型的一个实施例中,第一方向为感应单元的长度方向,第二方向为垂直于感应单元的方向,感应单元水平设置或垂直设置。 In one embodiment of the present invention, the first direction is the longitudinal direction of the sensing unit, the direction sensing unit, the sensing unit disposed horizontally or vertically arranged perpendicular to the second direction.

[0056] 需指出的是,上述第一、二次充电过程(步骤S401-步骤S403)和第三次充放电过程(步骤S404-步骤S406)的顺序可以互调,即先进行步骤S404-步骤S406,再进行步骤S401-步骤S403,也同样未偏离本实用新型的思想,包含在本实用新型的保护范围之内。 [0056] Note that it is the first order of the secondary charging process (step S401- step S403), and the third charge-discharge process (step S404- step S406) may intermodulation, i.e. the first step of step S404- S406, then proceeding to step S401- step S403, the also not departing from the idea of ​​the present invention, within the scope of protection of the present invention.

[0057] 在本实用新型的实施例中,自电容检测器件可为目前已知的自电容检测器件,因此在此不再赘述。 [0057] In the present embodiment of the invention, the self-capacitance detection device can be known from the capacitance detection device, and therefore not repeated here.

[0058] 在本实用新型的一个实施例中,如果采用两个自电容检测器件的话,则由于两个自电容检测器件可共用多个器件,因此不会增大芯片的整体功耗。 [0058] In one embodiment of the present invention embodiment, if two words from the capacitance detection device, since the two capacitance detection device can be shared from a plurality of devices, and therefore does not increase the overall power consumption of the chip.

[0059] 在本实用新型的一个实施例中,感应单元可采用不同的形状。 [0059] embodiment, the sensing unit may take different shapes in an embodiment of the present invention. 优选地,多个不相交的感应单元位于同一层,从而在保证检测精度的情况下,能够极大地节省成本。 Preferably, a plurality of disjoint sensing unit in the same layer, so that in a case where the detection accuracy is guaranteed, can greatly save costs.

[0060] 如图5所示,为本实用新型实施例的矩形感应单元被触摸的示意图。 As shown in [0060] FIG. 5, a schematic view of a rectangular embodiment of the novel sensing unit is touched present invention. 该感应单元为矩形,且多个感应单元与所述触摸屏的第一方向相互平行,因此触摸位置为在第一方向上的触摸位置。 The sensing means is rectangular, and a plurality of sensing units with the touch screen in a first direction parallel to each other, the touch position as a touch position in the first direction.

[0061] 如图6a所示,为本实用新型一个实施例的感应单元结构图。 As shown in [0061] FIG. 6a, a sensing unit of the present novel configuration example of practical embodiment of FIG. 该感应单元200包括多个第一部分230和多个平行第二部分240,其中,相邻的第一部分230之间通过第二部分240相连,以形成多个交替排列的第一凹槽1000和第二凹槽2000,其中,多个第一凹槽1000和多个第二凹槽2000的开口方向相反。 The sensing unit 200 includes a plurality of the first portion 230 and a plurality of second parallel portion 240, wherein first portion 230 between the adjacent second portions 240 are connected to form a plurality of alternately arranged first groove 1000 and the second two recesses 2000, wherein a plurality of first grooves 1000 and the opening 2000 in the direction opposite to the plurality of second grooves. 优选地,第二部分240沿第一方向排列。 Preferably, the second portion 240 are arranged in the first direction. 在本实用新型的一个实施例中,多个第一部分230可以相互平行,也可以不平行。 In one embodiment of the present invention embodiment, a plurality of the first portion 230 may be parallel to each other and to be non-parallel. 且,优选地,第二部分240为矩形。 And, preferably, the second portion 240 is rectangular. 在本实用新型的其他实施例中,第一部分230也可为矩形,但第一部分230还可为其它多种形状。 In other embodiments of the present invention, the first portion 230 may be rectangular, but the first portion 230 may also be other various shapes. 在该实施例中,通过第一部分230增加电阻的阻抗,从而增大感应单元200的阻抗,使得第一电阻和第二电阻更易检测,进一步地提高检测精度。 In this embodiment, by increasing the resistance of the resistor of the first portion 230, thereby increasing the impedance of the induction unit 200 so that the first and second resistors easier detection, the detection accuracy is further improved. 且在该实施例中,优选地,第二部分240之间的间隔相等,从而能够从感应单元的阻抗进行均匀地提高,以改善检测精度。 And in this embodiment, preferably, the spacing between the second portion 240 are equal, it is possible to uniformly increase the impedance from the sensing unit to improve the detection accuracy. 在本实用新型的一个实施例中,第一方向为感应单元200的长度方向,第二方向为垂直于感应单元200的方向,具体地,感应单元200可水平设置或垂直设置。 In one embodiment of the present invention, the first direction is the longitudinal direction of the induction unit 200, the second direction is a direction perpendicular to the sensing unit 200 is, specifically, the sensing unit 200 may be arranged horizontally or vertically disposed.

[0062] 在本实用新型的实施例中,感应单元200长度方向的尺寸与基板的尺寸基本一致,因此触控装置结构简单,容易制造,且制造成本低。 [0062] In the present embodiment of the invention, the size and dimensions of the longitudinal direction of the substrate sensing unit 200 are basically the same, so the touch device structure is simple, easy to manufacture, low manufacturing cost.

[0063] 在本实用新型的一个实施例中,第一电极210和第二电极220分别与多个第一部分230中的两个第一部分相连。 [0063] In one embodiment of the present invention embodiment, the first electrode 210 and second electrode 220 are respectively connected to the two first portions 230 of the plurality of first portions. 但是在本实用新型的另一个实施例中,第一电极210和第二电极220分别与多个第二部分240中的两个第二部分相连,如图6b所示。 However embodiment, the first electrode 210 and second electrode 220 is connected to the second portion of the plurality of two second portions 240, respectively, of another novel embodiment of the present invention, shown in Figure 6b.

[0064] 并且,在本实用新型的实施例中,第二部分240和第一部分230之间相互垂直,二者之间的角度优选为90度,当然也可选择其他角度。 [0064] Further, in the present embodiment of the invention, perpendicular to each other between a first portion 240 and second portion 230, the angle between them is preferably 90 degrees, of course, choose a different angle. 如图6a所示,该感应单元200通过多个第二部分240将多个第一部分230首尾相连,感应单元200的第一电极210和第二电极220分别与两端的第一部分230相连。 As shown in FIG 6a, the sensing unit 200, a plurality of second portions 240 of the first electrode a first plurality of end to end portions 230, 210 of the sensing unit 200 and the second electrode 220 are connected through the first portion 230 at both ends. 从整体结构上看,该感应单元200为具有较大长宽比的矩形。 The whole structure, the sensing unit 200 is a rectangle having a large aspect ratio. 该需要说明的是,虽然在图6a中将感应单元200沿X轴设置,但是本领域技术人员应该理解的是,该感应单元200也可沿Y轴设置。 It should be noted that, although FIG. 6a provided in the sensing unit 200 along the X axis, those skilled in the art will appreciate that the sensing unit 200 may be provided along the Y axis. 通过该感应单元的结构可以有效地减少噪声,提高感应的线性度。 Noise can be effectively reduced by the configuration of the sensing unit, improve the linearity of the sensor.

[0065] 如图7a所示,为本实用新型另一个实施例的感应单元结构图。 [0065] As shown in FIG 7a, the sensing unit configuration diagram of another embodiment of the novel utility of the present embodiment. 在该实施例中,该感应单元200可为门形,且多个感应单元200中每个感应单元200的长度不同,多个感应单元200之间相互嵌套。 In this embodiment, the sensing unit 200 may be a gate-shaped, and the length of each of the various sensing units 200 of the plurality of sensing units 200, a plurality of sensing cells 200 nest with each other. 其中,每个所述感应单元包括第三部分250、不相交的第四部分260和第五部分270。 Wherein each of the sensing unit 250 comprises a third portion, fourth portion 260 does not intersect and the fifth portion 270. 优选地,第三部分250与基板100的第一边110平行,第四部分260和第五部分270与基板100的第二边120平行,且第四部分260 —端与第三部分250的一端相连,第五部分270的一端与第三部分250的另一端相连。 Preferably, the third portion 250 of the substrate 110 parallel to the first side 100, second side 120 parallel to the fifth portion 260 and fourth portion 270 of the substrate 100, and a fourth portion 260. - One end of the third end portion 250 It is connected to one end of the fifth portion 270 is connected to the other end of the third portion 250. 感应单元200的第四部分260的另一端具有第一电极210,第五部分270的另一端具有第二电极220,其中,每个第一电极210和第二电极220均与触摸屏控制芯片的对应的管脚相连。 The other end of the sensing unit 260 of the fourth portion 200 having a first electrode 210, the other end of the fifth portion 270 having a second electrode 220, wherein each of the first electrode 210 and second electrode 220 corresponds to the touch panel control chip connected to pins.

[0066] 在本实用新型的实施例中,所谓相互嵌套是指外侧的感应单元部分地包围内侧的感应单元,例如如图7a所示,这样能够在保证精度的同时达到较大的覆盖率,并且降低运算的复杂度,提高触摸屏的响应速度。 [0066] In an embodiment of the present invention, the term nested refers to the outside part surrounding the sensing unit inside the sensing unit, for example, as shown, so that to achieve greater coverage at the same time ensure the accuracy 7a and reduce computational complexity, improve the response speed of the touch screen. 当然本领域技术人员还可根据图7a的思想采用其他相互嵌套的方式排列感应单元。 Of course, those skilled in the art may use other are arranged nested into each other according to the sensing unit of FIG. 7a thought. 在本实用新型的一个实施例中,每个感应单元200的第三部分250与其他感应单元200的第三部分250平行,每个感应单元200的第四部分260与其他感应单元200的第四部分260平行,每个感应单元200的第五部分270与其他感应单元200的第五部分270平行。 Embodiment, each of the third portion 200 of the sensing unit 250 sensing unit 250 and the other parallel to third portion 200 in one embodiment of the present invention, each of the fourth sensing unit 260 and fourth portion 200 of the other sensing unit 200 parallel portion 260, fifth portion 200 of each sensing unit of the sensing unit 270 and the other 200 of the fifth portion 270 in parallel. 在本实用新型的一个实施例中,感应单元200的第三部分250、第四部分260和第五部分270中至少一个为矩形,优选地,第三部分250、第四部分260和第五部分270均为矩形。 In one embodiment of the present invention embodiment, 250, a fourth portion and a fifth portion 260 third portion 270 of the sensing unit 200, at least a rectangular, preferably, the third part 250, a fourth portion and the fifth portion 260 270 are rectangular. 在该实施例中,由于矩形结构图形规则,因此在手指横向或纵向移动时线性度好,此外,两个矩形结构之间的间距相同,便于计算,从而提高计算速度。 In this embodiment, since the pattern rule a rectangular structure, and therefore a good horizontal or vertical movement of the finger when the linearity, in addition, the distance between two identical rectangular configuration to facilitate the calculation, thereby increasing calculation speed.

[0067] 在本实用新型的一个实施例中,每个感应单元200的第四部分260与第五部分270长度相等。 [0067] In one embodiment of the present invention embodiment, each of the sensing unit 260 and fourth portion 200 of the fifth portion 270 of equal length. · ·

[0068] 在本实用新型的一个实施例中,基板100为矩形,第一边110和第二边120之间相互垂直,且第四部分260和第三部分250之间相互垂直,第五部分270和第三部分250之间 [0068] In one embodiment of the present invention embodiment, the substrate 100 is a rectangular, perpendicular to each other between a first side 110 and second side 120 and perpendicular to each other between the third portion 260 and fourth portion 250, fifth portion between 270 and 250 and the third portion

相互垂直。 Perpendicular to each other.

[0069] 在本实用新型的一个实施例中,相邻两个感应单元200的第三部分250之间的间距相等,相邻两个感应单元200的第四部分260之间的间距相等,相邻两个感应单元200的第五部分270之间的间距相等。 [0069] In one embodiment of the present invention embodiment, a third portion 200 adjacent the spacing between the two sensing units is equal to 250, 260 is equal to the spacing between two adjacent fourth portion 200 of the sensing unit relative o spacing between two sensing units 270 of the fifth portion 200 are equal. 这样就可以通过多个感应单元200对触摸屏的第一边110和第二边120均匀划分,从而提高运算速度。 This allows a plurality of side by the second sensing unit 200 to the touch screen 110 and the second side 120 evenly divided, thereby increasing processing speed. 当然在本实用新型的其他实施例中,相邻两个感应单元200的第三部分250之间的间距也可不相等,或者,相邻两个感应单元200的第四部分260之间的间距也可不相等,如图7b所示。 Of course, in the present invention other embodiments, the spacing 260 is also the fourth portion 200 between two adjacent sensing unit sensing two cell gap 250 between the third portion 200 may not be equal, or, the adjacent It may not be equal, as shown in Figure 7b. 例如,由于用户往往触摸触摸屏的中心部位,因此可以将触摸屏中心部位的感应单元之间的间距减小,从而提高中心部位的检测精度。 For example, since the user often touches the center portion of the touch screen, so the pitch can be between the central portion of the touch screen sensing unit is reduced, thereby improving the detection accuracy of the center portion.

[0070] 在本实用新型的一个实施例中,多个感应单元200相对于基板100的中心轴Y对称,如图7a所示,中心轴Y垂直于第三部分250,从而更有利于提高精度。 [0070] In one embodiment of the present invention, the plurality of sensing units 200 symmetrically with respect to the central axis Y of the substrate 100, shown in Figure 7a, the central axis Y perpendicular to the third portion 250, which is more conducive to improve the accuracy .

[0071] 如图7a所示,在该实施例中,感应单元200的第一电极210和第二电极220均位于基板100的第一边110上。 As shown in [0071] FIG. 7a, in this embodiment, the first electrode 200 of the sensing unit 210 and the second electrode 220 are located on the first side 110 of the substrate 100. 在该实施例中,检测到在感应单元上的触摸位置之后,即可获得在触摸屏之上的触摸位置。 In this embodiment, after detecting the touch position on the sensing unit, the touch position can be obtained on the touch screen.

[0072] 需要说明的是,上述图7a为本实用新型较优的实施例,其能够获得较大的覆盖率,但是本实用新型的其他实施例可对图7a进行一些等同的变化,例如第四部分260和第五部分270可以是不平行的。 [0072] Incidentally, the above-described novel preferable embodiment of the present utility Figure 7a, it is possible to obtain a larger coverage, but the present invention may be made of some other embodiments of equivalent variations on the Figure 7a, for example of four parts 260 and the fifth portion 270 may not be parallel.

[0073] 本实用新型实施例中的感应单元采用类似门形的结构,不仅结构简单,便于制作,所有引线都在同一边,设计方便,减少银浆成本并且制作容易,对减少生产成本有很大帮助。 [0073] Example embodiment of the present invention, the sensing unit similar gate-shaped configuration, not only simple structure, ease of fabrication, all of the terminals are on the same side, to facilitate the design, reduce cost and easy to manufacture silver paste, to reduce manufacturing costs there are big help.

[0074] 如图8所示,为本实用新型实施例的感应单元被触摸时的示意图。 [0074] As shown, a schematic view of an embodiment of the present invention is a touch sensing unit 8. 从图8可知,第一电极为210,第二电极为220,触摸位置接近于第二电极,假设感应单元的长度为10个单位长度,且将感应单元均匀地分为10份,其中,感应单元第三部分250的长度为4个单位长度,感应单元第四部分260和第五部分270的长度为3个单位长度。 Seen from FIG. 8, a first electrode 210, second electrode 220, the touch position close to the second electrode, the length is assumed that the sensing unit 10 per unit length, and the sensing unit 10 is uniformly divided into parts, wherein the sensor unit length of the third portion 250 is four units of length, the length of the fifth portion 260 and fourth portion 270 of the sensing unit 3 per unit length. 经过检测,获知第一电阻和第二电阻之比为4:1,即第一电极210至触摸位置的长度(由第一电阻体现)为全部感应单元长度的80%。 After testing, the known ratio of the first resistor and the second resistor has a 4: 1, i.e., the length of the first electrode 210 to a touch position (embodied by a first resistor) is 80% of the total length of the sensing unit. 换句话说,触摸点位于距离第一电极210处8个单位长度的位置,获知,触摸点位于距离第二电极220处2个单位长度的位置。 In other words, the touch point located at a distance of 2,108 units of length of the first electrode, known, position of the touch point is located at a distance of 2,202 units of length of the second electrode. 当手指移动时,触摸位置会相应移动,因此通过触摸位置的变换就可判断手指相应的移动轨迹,从而判断用户的输入指令。 When the finger is moved, the touch position moves accordingly, and therefore can determine the appropriate finger movement trajectory of the touch position by the conversion, to determine the user input instructions.

[0075] 从图8的以上例子可以看出,本实用新型的计算方式非常简单,因此能够极大地提高触摸屏检测的反应速度。 [0075] As can be seen from the above example of FIG. 8, the present invention is very simple calculation, it is possible to greatly improve the response speed of the touch screen detection. 在本实用新型的实施例中,通常手指或其他物体会触摸多个感应单元,此时可以先获得在这被触摸的多个感应单元中每个的触摸位置,然后通过求平均的方式计算最终在触摸屏上的触摸位置。 In the embodiment of the present invention, a finger or other object will typically touch sensing units, the first case can be obtained in which a plurality of sensing units each of the touched position of the touch, and is calculated by means of averaging of the final touch position on the touch screen.

[0076] 如图9a所示,为本实用新型再一个实施例触摸屏检测设备结构图。 As shown in [0076] FIG. 9a, new still another embodiment, the touch screen detecting apparatus configuration diagram of the present invention. 在本实用新型的一个实施例中,多个感应单元的长度逐渐增加,且每个所述感应单元包括第六部分280和第七部分290。 In one embodiment of the present invention embodiment, the length of the plurality of sensing units is gradually increased, and each of the sensing unit 280 includes a sixth portion 290 and Part VII. 第六部分280的一端具有第一电极210,第七部分290的一端与第六部分280的另一端相连,且第七部分290的另一端具有第二电极220。 One end of the sixth portion 280 having a first electrode 210, a seventh portion 290 is connected to one end to the other end of the sixth portion 280, and the other end portion having a second electrode 290 VII 220.

[0077] 具体地,第六部分280与基板100的第一边110平行,第七部分290与基板100的第二边120平行,且第一边110和第二边120相邻。 [0077] Specifically, the sixth portion 280 is parallel to the first side 110 of the substrate 100, a second edge portion of the seventh 120 and 290 parallel to the substrate 100, and the first side 110 and second side 120 adjacent. 且每个第一电极210和第二电极220均与触摸屏控制芯片的对应管脚相连。 And each of the first electrode 210 and second electrode 220 are connected to pins corresponding to the touch screen control chip.

[0078] 在本实用新型的优选实施例中,每个感应单元200的第六部分280与其他感应单元200的第六部分280平行,每个感应单元200的第七部分290与其他感应单元200的第七部分290平行。 [0078] In the present invention a preferred embodiment, each of the sixth portion 200 of the sensing unit 280 sensing unit 280 and the other parallel to the sixth portion 200, each of the seventh portion 200 of the sensing unit 290 sensing unit 200 with the other the seventh part 290 parallel. 通过这样的设置能够有效地提高感应单元对触摸屏的覆盖率。 By such an arrangement can improve the coverage of the sensing unit of the touch screen. 在本实用新型的一个实施例中,感应单元200的第六部分280、第七部分290中至少一个为矩形,优选地,第六部分280、第七部分290均为矩形。 Embodiment, 280, 290 Part VII sixth portion 200 of the sensing unit in at least one of a rectangular shape, preferably, sixth portion 290 is a rectangular 280, a new section in the seventh embodiment of the present invention. 在该实施例中,由于矩形结构图形规则,因此在手指横向或纵向移动时线性度好,此外,两个矩形结构之间的间距相同,便于计算。 In this embodiment, since the pattern rule a rectangular structure, and therefore a good horizontal or vertical movement of the finger when the linearity, in addition, the distance between two identical rectangular structure, easy to calculate.

[0079] 本实用新型实施例的触摸屏检测装置中的感应单元采用双端检测,即感应单元的两端均具有电极,且每个电极均与触摸屏控制芯片的对应管脚相连,在进行触摸检测时通过感应单元自身即可实现对触摸点的定位。 [0079] The touch screen detection apparatus according to the present invention embodiment uses a double-ended sensing unit detects that the unit has induced across the electrodes, and each electrode is connected with a corresponding pin of the touch screen control chip, the touch detection is performed when positioning itself can be realized by the sensing unit of the touch point.

[0080] 更为重要的是,本实用新型通过计算第一电阻和第二电阻之间比例实现触摸位置的确定,因此相对于目前的菱形或三角形设计来说,由于在确定触摸位置时,无需计算自电容的大小,且自电容的大小不会影响触摸位置的精度,对自电容检测精度的依赖降低,从而提高了测量精度,改善了线性度。 [0080] More importantly, the ratio between the present invention by calculating the first and second resistors is implemented to determine the touch position, and therefore with respect to the current diamond or triangular design, since in determining the touch position, without calculated from the size of the capacitor, and from the magnitude of the capacitance does not affect the accuracy of touch position detection accuracy of the capacitance reducing reliance on self, thereby improving the measurement accuracy, improved linearity. 此外,由于本实用新型实施例的第五部分270、第六部分280和第七部分290中任意一个均可为形状规则的矩形,因此相对于目前的菱形或三角形等不规则的形状来说,也可以进一步地提高线性度。 Further, since the fifth portion 270 of the embodiment of the invention, and a sixth portion 280 of the seventh section 290 may be any of a regular rectangular shape, and therefore an irregular shape with respect to the current rhombus or a triangle, a It may be further improved linearity.

[0081] 在本实用新型的一个实施例中,每个感应单元的第六部分280与第七部分290长度相等,从而能够提高运算速度。 [0081] embodiment, each of the seventh portion 280 and the sixth portion 290 is equal to the length of the sensing unit in one embodiment of the present invention, the operation speed can be improved. 优选地,基板100为矩形,第一边110和第二边120之间相互垂直。 Preferably, the substrate 100 is a rectangular, perpendicular to each other between a first side 110 and second side 120. 第一边110和第二边120相互垂直,不仅使得感应单元设计更加规则,例如使得感应单元的第六部分280和第七部分290之间也相互垂直,从而提高对触摸屏的覆盖率,而且第六部分280和第七部分290之间相互垂直也可以提高检测的线性度。 First side 110 and second side 120 perpendicular to each other, so that not only the sensing unit is more design rules, for example, be perpendicular to each other such that between the sixth portion 280 of the sensing unit 290 and the seventh part, thereby improving the coverage of the touch screen, and the first between the seventh portion 280 and six parts 290 may be perpendicular to each other to improve the linearity of detection.

[0082] 在本实用新型的一个实施例中,相邻两个感应单元200之间的间距相等。 [0082] In one embodiment of the present invention embodiment, the equal spacing between two adjacent sensing units 200. 这样就可以通过多个感应单元200对触摸屏的第一边110和第二边120均匀划分,从而提高运算速度。 This allows a plurality of side by the second sensing unit 200 to the touch screen 110 and the second side 120 evenly divided, thereby increasing processing speed. [0083] 当然在本实用新型的另一个实施例中,相邻两个感应单元200之间的间距也可以不等,如图9b所示,例如由于用户往往触摸触摸屏的中心部位,因此可以将触摸屏中心部位的感应单元之间的间距减小,从而提高中心部位的检测精度。 [0083] Of course, the present invention in a further embodiment of the novel embodiment, the spacing between two adjacent sensing units 200 may vary, as shown in FIG. 9b, for example because the user often touches the touch screen of the central portion, and therefore may be the spacing between the center portion of the screen of the touch sensing unit is reduced, thereby improving the detection accuracy of the center portion.

[0084] 如图9a所示,在该实施例中,感应单元200的第一电极210位于基板100的第一边110上,第二电极220位于基板100的第二边120上,且第一边110和第二边120相互垂直。 As shown in [0084] FIG. 9a, in this embodiment, the first electrode 210 of the sensing unit 200 positioned on the first side 110 of the substrate 100, a second electrode 220 disposed on the second side 120 of the substrate 100, and the first a second side edge 110 and 120 perpendicular to each other. 在该实施例中,检测到在感应单元上的触摸位置之后,即可获得在触摸屏之上的触摸位置。 In this embodiment, after detecting the touch position on the sensing unit, the touch position can be obtained on the touch screen.

[0085] 如图10所示,为本实用新型实施例的感应单元被触摸时的示意图。 [0085] As shown in FIG. 10, a schematic view of the sensor element model of the embodiment of the present practical touched. 从图10可知,第一电极为210,第二电极为220,触摸位置接近于第二电极220,假设感应单元的长度为10个单位长度,且将感应单元均匀地分为10份,其中,感应单元的第六部分280的长度为5个单位长度,感应单元的第七部分290的长度为5个单位长度。 Seen from FIG. 10, a first electrode 210, second electrode 220, the touch position close to the second electrode 220, assuming the length of the sensing unit 10 per unit length, and the sensing unit 10 is uniformly divided into parts, wherein the length of the sixth portion 280 of the sensing unit 5 is a unit length, the length of the sensing unit 290 is part of a seventh length of 5 units. 经过检测,获知第一电阻和第二电阻之比为9:1,即第一电极210至触摸位置的长度(由第一电阻体现)为全部感应单元长度的90%。 After testing, the known ratio of the first and second resistors of 9: 1, i.e., the length of the first electrode 210 to a touch position (embodied by a first resistor) is 90% of the total length of the sensing unit. 换句话说,触摸点位于距离第一电极210处9个单位长度的位置,获知,触摸点``位于距离第二电极220处I个单位长度的位置。 In other words, the touch point located at a distance of 2,109 units of length of the first electrode, known, `` touch point located at a distance of 220 I unit length of the second electrode.

[0086] 从图10的以上例子可以看出,本实用新型的计算方式非常简单,因此能够极大地提高触摸屏检测的反应速度。 [0086] As can be seen from the above example of Figure 10, the present invention is very simple calculation, it is possible to greatly improve the response speed of the touch screen detection.

[0087] 在本实用新型的一个实施例中,多个感应单元200位于同一层,因此只需要一层ITO即可,从而在保证精度的同时,极大地降低制造成本。 [0087] In one embodiment of the present invention, a plurality of sensing units 200 at the same level, it is only necessary to ITO layer, thus ensuring the accuracy, while greatly reducing the manufacturing cost.

[0088] 本实用新型实施例的触摸屏检测装置中的感应单元采用双端检测,即感应单元的两端均具有电极,且每个电极均与触摸屏控制芯片的对应管脚相连,在进行触摸检测时通过感应单元自身即可实现对触摸点的定位。 [0088] The touch screen detection apparatus according to the present invention embodiment uses a double-ended sensing unit detects that the unit has induced across the electrodes, and each electrode is connected with a corresponding pin of the touch screen control chip, the touch detection is performed when positioning itself can be realized by the sensing unit of the touch point.

[0089] 更为重要的是,本实用新型通过计算第一电阻和第二电阻之间比例实现触摸位置的确定,因此相对于目前的菱形或三角形设计来说,由于在确定触摸位置时,无需计算自电容的大小,且自电容的大小不会影响触摸位置的精度,对自电容检测精度的依赖降低,从而提高了测量精度,改善了线性度。 [0089] More importantly, the ratio between the present invention by calculating the first and second resistors is implemented to determine the touch position, and therefore with respect to the current diamond or triangular design, since in determining the touch position, without calculated from the size of the capacitor, and from the magnitude of the capacitance does not affect the accuracy of touch position detection accuracy of the capacitance reducing reliance on self, thereby improving the measurement accuracy, improved linearity. 此外,由于本实用新型实施例的第五部分270、第六部分280和第七部分290中任意一个均可为形状规则的矩形,因此相对于目前的菱形或三角形等不规则的形状来说,也可以进一步地提高线性度。 Further, since the fifth portion 270 of the embodiment of the invention, and a sixth portion 280 of the seventh section 290 may be any of a regular rectangular shape, and therefore an irregular shape with respect to the current rhombus or a triangle, a It may be further improved linearity.

[0090] 综上所述,本实用新型实施例通过对感应单元两端的电极施加电平信号,如果该感应单元被触碰,则会该感应单元会形成自电容,因此本实用新型通过施加的电平信号可对该自电容进行充电,并根据第一电阻和第二电阻之间的比例关系确定在第一方向上的触摸位置。 [0090] In summary, embodiments of the present invention by applying across the electrodes of the sensing unit level signal, if the sensing unit is touched, the sensing unit will be formed from the capacitance, by applying the present invention level signal from the capacitor can be charged, and determining a touch position in the first direction based on the proportional relationship between the first and second resistors. 例如在本实用新型的一个实施例中,第一电阻和第二电阻之间的比例关系根据在对所述自电容充电/放电时,从所述第一电极和/或第二电极进行检测获得的第一检测值和第二检测值之间的比例关系计算得到。 For example, in one embodiment of the present invention, the proportional relationship between, the first and second resistors is obtained in accordance with the self-capacitance of the charging / discharging, is detected from the first electrode and / or the second electrode a first proportional relationship between the detected value and the second detection value is calculated. 因此从第一电极和/或第二电极检测该自电容充电/放电时产生的第一检测值和第二检测值。 Thus from the first electrode and / or self-generated when the capacitor charging / discharging of the second electrode and the first detection value of the second detection value. 这样,通过第一检测值和第二检测值就能够反应触摸点位于该感应单元的位置,从而进一步确定触摸点在触摸屏的位置。 Thus, by detecting a first value and the second value can be detected at a position of the touch point reaction sensing unit, thereby further determining a position of a touch point in the touch screen.

[0091 ] 对于图5和图6的感应单元来说,在确定了第一方向上的触摸位置之后,还需要进一步根据被触摸的感应单元的位置确定在第二方向上的触摸位置。 [0091] For the sensing unit of FIG. 5 and FIG. 6 is, after determining the touch position in the first direction, still needed to determine the touch position in the second direction according to the position of the touch sensing unit. 在本实用新型的实施例中,可参照图5和6所示,如果检测到某个感应单元的第一检测值或第二检测值大于预设阈值,则说明该感应单元被触摸。 In the present embodiment of the invention, reference may be shown in FIG. 5 and 6, if the detected value of a sensing unit detecting a first or second detection value is greater than the predetermined threshold value, then the sensing unit is touched. 假设第二个感应单元(其纵坐标为M)被触摸,则在第二方向上的触摸位置就为第二个感应单元的坐标Μ。 If the second sensing unit (which is the ordinate M) is touched, the touch position in the second direction on the second coordinate sensing unit Μ. 之后,再根据第一方向上的触摸位置和第二方向上的触摸位置确定触摸点在触摸屏上的位置。 After again determining the position of the touch on the touch screen according to the touch position on the touch position on the first and second directions.

[0092] 具体地,可采用质心算法计算触摸点在第二方向上的触摸位置,以下对质心算法进行简单介绍。 [0092] Specifically, the centroid algorithm employed touched touch position in the second direction, the centroid algorithm will be briefly described.

[0093] 在滑条和触摸板应用中,经常有必要在具体感应单元的本质间距以上确定出手指(或其他电容性物体)的位置。 [0093] In the slider and a touch panel applications it is often necessary to determine the position of the finger (or other capacitive object) in the nature of a pitch than the specific sensing unit. 手指在滑条或触摸板上的接触面板通常大于任何个感应单元。 Finger on the touch panel or a touchpad slider is often larger than any induction units. 为了采用一个中心来计算触摸后的位置,对这个阵列进行扫描以验证所给定的传感器位置是有效的,对于一定数量的相邻感应单元信号的要求是要大于预设触摸阈值。 In order to calculate using a center position of a touch on the array is scanned to verify that a given sensor location is effective, the requirements for the adjacent signal sensing unit is greater than a number of preset touch threshold. 在找到最为强烈的信号后,此信号和那些大于触摸阈值的临近信号均用于计算中心: After finding the strongest signal, this signal and those near the touch signal is greater than the threshold value are used to calculate the center:

[0094] [0094]

Figure CN202649983UD00131

[0095] 其中,Ncent为中心处感应单元的标号,η为检测到被触摸的感应单元的个数,i为被触摸感应单元的序号,其中i大于等于2。 [0095] wherein, Ncent designated sensing unit at the center, [eta] is the number of the detected touch sensing unit, i is the number of the touch sensing unit, where i is greater than or equal to 2.

[0096] 例如,当手指触摸在第一条通道,其电容变化量为yl,第二条通道上的电容变化量为y2和第三条通道上的电容变化量为y3时。 [0096] For example, when the finger touches the first channel, the capacitance variation is YL, the amount of change in capacitance on the second channel is a capacitance variation in the third channel is y2 and y3 time. 其中第二通道y2电容变化量最大。 Wherein the second channel y2 maximum capacitance variation. Y坐标就可以算是: Y coordinates can be:

[0097] [0097]

Figure CN202649983UD00132

[0098] 如图11所示,为本实用新型一个实施例的触控装置示意图。 [0098] As shown in FIG 11, a schematic view of a touch device novel embodiment of the present invention. 该触控装置包括由基板100和多个不相交的感应单元200所构成的触摸屏检测装置、触摸屏控制芯片300。 The touch device comprises a touch screen substrate 100 and the detecting means a plurality of disjoint sensing unit 200 is constituted, touch screen control chip 300. 其中,触摸屏控制芯片300中的一部分管脚与多个感应单元200的第一电极210相连,触摸屏控制芯片300中的另一部分管脚与多个感应单元200的第二电极220相连,且触摸屏控制芯片300向多个感应单元200的第一电极210和/或第二电极220施加电平信号,该电平信号在感应单元200被触摸时向感应单元200产生的自电容充电。 Wherein the first electrode of the touch screen control chip 300 and a portion of the plurality of pins 210 coupled to the sensing unit 200, the second electrode is connected to another portion of the touch screen controller chip pins 300 and 200 of the plurality of sensing units 220, and the touch screen control chip 300 to the plurality of sensing units 210 of the first electrode 200 and / or the second electrode 220 is applied to the signal level, the level of the signal charge from the capacitance sensing unit 200 is touched to generate the sensing unit 200.

[0099] 如图12所示,为本实用新型实施例触摸屏控制芯片的结构图。 [0099] 12, the new structure of the present embodiment FIG touchscreen controller chip of practical embodiment. 触摸屏控制芯片300包括充电器件310、放电器件320、检测器件330和控制及计算器件340。 Touch screen control chip 300 includes a charger 310, the discharging device 320, and controls the detection device 330 and computing device 340. 充电器件310在第一次充电过程中,向多个感应单元中的一个感应单元200的第一电极210施加高电平信号并将第二电极接地220以在一个感应单元200被触摸时对一个感应单元200产生的自电容进行第一次充电;在第二次充电过程中,向多个感应单元中的一个感应单元200的第一电极210和第二电极220施加高电平信号,或者,向第一电极210和第二电极220中的一个施加高电平信号并将第一电极210和第二电极220中的另一个断开,以对自电容进行第二次充电;以及在第三次充电过程中,向多个感应单元中的一个感应单元200的第一电极210施加高电平信号并将第二电极220接地,以对自电容进行第三次充电。 Charging means 310 in the first charging process, the second electrode is grounded and a high level signal is applied to the first electrode a plurality of sensing units 210 of the sensing unit 220 when a touch sensing unit 200 is a pair of self-capacitance sensing unit 200 generates a first charging is performed; in the second charging process, a high level signal is applied to the plurality of sensing units in a sensing unit 210 of the first electrode 200 and second electrode 220, or, and a high level signal is applied to the second electrodes 210 and 220 in a first electrode of the first electrode 210 and the other second electrode 220 is disconnected, in order to charge the capacitor from the second; and in the third charging times, a high level signal is applied to the second electrode and the ground electrode 220 to a first plurality of sensing units 210 of a sensing unit 200, a third time to charge the self-capacitance. 放电器件320用于在充电器件310对自电容第三次充电之后,将一个感应单元200的第一电极210和第二电极220接地,或者,将第一电极210和第二电极220中的一个接地并将第一电极210和所述第二电极220中的另一个断开以对自电容进行第一次放电。 Discharging device 320 for charging of the capacitor since the third, the first electrode 210 of a sensing unit 220 and the second ground electrode, or the first electrode 220 a second electrode 310 is a charger 210 and and the other is grounded and the second electrode 220 is disconnected from the discharge to a first electrode of the capacitor 210. 检测器件330用于在每次充放电时,从对应的第一电极210或第二电极220进行检测以获得第一次充电和第二次充电之间的第一检测变化值,及从对应的第一电极210或第二电极进行检测以获得第三次充电和第一次放电之间的第二检测变化值。 Detection means 330 is used at each charge and discharge, from the corresponding first electrode 210 or second electrode 220 to obtain a first detected value detected change in charge between the first and second charge, and from the corresponding the first electrode 210 or the second electrode to obtain a second detected value detected change in charge between the third and first discharge. 控制及计算器件340用于对充电器件310、放电器件320、检测器件330进行控制,并根据第一检测变化值和第二检测变化值计算自电容至第一电极之间的第一电阻和自电容至所述第二电极之间的第二电阻的比例关系,并根据第一电阻和第二电阻的比例关系确定触摸位置。 A control and computing device 340 to the charger 310, the discharging device 320, detecting device 330 is controlled, and calculates the capacitance from the first to the resistance between the first electrode and detecting a change from a first value and the second change value detection proportional to the capacitance of the second resistor between the second electrode and the touch position is determined by the ratio of the first and second resistors. 在本实用新型的实施例中,控制及计算器件340可以以扫描的方式控制充电器件310依次向多个感应单元施加相应的电压,同时在检测时也可以以扫描的方式依次进行检测,或者,也可以扫描的方式控制放电器件320依次对多个感应单元中被触摸的感应单元所产生的自电容进行放电。 In the present embodiment of the invention, the control and computing device 340 may scan the charger 310 is controlled sequentially applying a corresponding voltage to the plurality of sensing units, but may also be performed sequentially in a scanning manner while detecting the detection, or, can also scan the discharge device 320 is controlled to sequentially generated by the plurality of touch sensitive elements is self-capacitance sensing unit to discharge.

[0100] 在本实用新型的一个实施例中,第一检测变化值、第二检测变化值可为电流检测变化值、自电容检测变化值、电平信号检测变化值和电荷变化量中的一种或多种。 [0100] In one embodiment of the present invention, the first detection value changes, the change value may vary the second detection current value detected from the change in capacitance value is detected, detecting a change in the electric signal value and the variation amount of charge in a flat or more.

[0101] 在本实用新型的一个实施例中,检测器件330为CTS (电容检测器件)。 [0101] In one embodiment of the present invention embodiment, the detection device 330 is CTS (capacitance detection device).

[0102] 在本实用新型的一个实施例中,控制及计算器件340还用于根据被触摸的感应单元200的位置确定在第二方向上的触摸位置,并根据第一方向上的触摸位置和第二方向上的触摸位置确定所述触摸点在触摸屏上的位置。 [0102] In one embodiment of the present invention, the control and computing device 340 is further configured to determine a touch location in the second direction according to the position of the sensing unit 200 is touched and the touch position in a first direction and the touch position on the second position in a direction determined the touch on the touch screen. 具体地,控制及计算器件340通过质心算法确定所述第二方向上的触摸位置。 Specifically, the control calculator 340 and the centroid algorithm to determine the touch position on the second direction.

[0103] 在本实用新型的一个实施例中,第一方向为感应单元200的长度方向,第二方向为垂直于感应单元200长度方向的方向,感应单元水平平行设置或垂直平行设置。 [0103] In one embodiment of the present invention, the first direction is a longitudinal direction of the induction unit 200, the second direction is a direction perpendicular to the longitudinal direction of the sensing unit 200, the sensing unit disposed in parallel horizontal or vertical parallel.

[0104] 在本实用新型的一个优选实施例中,多个不相交的感应单元位于同一层,从而在保证检测精度的前提下,有效地降低制造成本。 [0104] In the present invention a preferred embodiment, a plurality of disjoint sensing unit in the same layer, thereby ensuring the detection accuracy of the premise, effectively reduces the manufacturing cost.

[0105] 本实用新型还提出了一种便携式电子设备,包括如上所述的触控装置。 [0105] The present invention also provides a portable electronic device comprising a touch device as described above.

[0106] 本实用新型实施例通过对感应单元两端的电极施加电平信号,如果该感应单元被触碰,则会该感应单元会形成自电容,因此本实用新型通过施加的电平信号可对该自电容进行充电,并根据第一电阻和第二电阻之间的比例关系确定触摸屏上的触摸位置。 [0106] Example embodiment of the present invention by applying a level of a signal induced across the electrodes of the unit, if the sensing unit is touched, the sensing unit will be formed from the capacitance, the level of the signal by applying the present invention may be of since the capacitor is charged, and to determine a touch location on the touch screen in accordance with a proportional relationship between the first and second resistors. 且通过本实用新型实施例的对自电容进行两次充电的检测方式,以抵消某些不可测量的物理参数或者减少物理量的测量,从而在保证检测速度的前提下,有效地提高检测精度。 And the self-capacitance of the present invention by an embodiment of two detection methods of charging, to offset some of the physical parameter measured or reduce non-physical measurement, thereby ensuring detection speed premise effectively improve the detection accuracy.

[0107] 本实用新型实施例提出了一种新颖的自电容检测方式,在感应单元被触摸时,触摸点就可将该感应单元分为两个电阻,从而在进行自电容检测的同时考虑这两个电阻就可以确定触摸点在该感应单元上的位置。 [0107] Example embodiment of the present invention, a novel self-capacitance detection method, when the sensing unit is touched, the touch point sensing unit can be divided into two resistors, thereby making the self-capacitance detection taking this two resistors can determine the position of the sensing unit on the touch point. 本实用新型实施例的结构简单,并且对于一个感应单元来说,可从其的第一电极和/或第二电极进行充电或放电,并在充电或放电时进行检测,不仅能够降低RC常数,节省时间提高效率,并且还能够保证坐标不会偏移。 Simple structure embodiment of the present invention, and for a sensing unit, the first electrode and / or the second electrode may be charged or discharged therefrom, and when charging or discharging is detected, not only reduces the RC constant, save time and improve efficiency, and also to ensure that coordinates do not. 此外,本实用新型实施例还可以有效提高电路的性噪比,降低电路噪声,提高感应线性度。 Further, the present invention further embodiment can improve signal to noise ratio of the circuit, the noise reduction circuit, enhance the response linearity. 另外,在检测过程中由于对被触摸的感应单元进行充电,因此其中会产生小电流,能够很好地消除Vcom电平信号对触摸屏中感应单元产生的自电容的影响,因此可以相应地消除屏幕屏蔽层及相关工序,从而可以在增强了抗干扰能力的同时进一步降低成本。 Further, in the detection process due to the touch sensing unit is charged, and therefore which produces a small current, perfectly eliminate self-capacitance impact Vcom level signal touchscreen induced generation unit, it is possible to correspondingly eliminate screen shield and related processes, the cost can be further reduced while the interferences.

[0108] 在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本实用新型的至少一个实施例或示例中。 [0108] In the description of the present specification, reference to the term "one embodiment," "some embodiments", "an example", "a specific example", or "some examples" means that a description of the exemplary embodiment or embodiments described a particular feature, structure, material, or characteristic included in the present invention at least one embodiment or examples. 在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或示例。 In the present specification, a schematic representation of the above terms necessarily referring to the same embodiment or example. 而且,描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。 Furthermore, the particular features, structures, materials, or characteristics described embodiments or examples may be at any one or more in a proper manner.

[0109] 尽管已经示出和描述了本实用新型的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本实用新型的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本实用新型的范围由所附权利要求及其等同限定。 [0109] While there have been shown and described an embodiment of the present invention, those of ordinary skill in the art, can be appreciated that many of these embodiments without departing from the principles of the present invention and spirit of the variations, modifications, alternatives, and modifications, the scope of the present invention by the appended claims and their equivalents.

Claims (9)

1. 一种触控装置,其特征在于,包括: 基板; 多个不相交的感应单元,所述多个感应单元形成在所述基板之上,且每个感应单元的两端分别具有第一电极和第二电极; 触摸屏控制芯片,所述触摸屏控制芯片包括充电器件、放电器件、检测器件和控制及计算器件,其中, 所述充电器件,用于在第一次充电过程中,向所述多个感应单元中的一个感应单元的第一电极施加高电平信号并将第二电极接地以在所述一个感应单元被触摸时对所述一个感应单元产生的自电容进行第一次充电;在第二次充电过程中,向所述多个感应单元中的一个感应单兀的第一电极和第二电极施加高电平信号,或者,向所述第一电极和第二电极中的一个施加高电平信号并将所述第一电极和第二电极中的另一个断开,以对所述自电容进行第二次充电;以及在第三次充电过程中,向所 A touch device, comprising: a substrate; a plurality of disjoint sensing unit, a plurality of sensing cells formed on said substrate, and both ends of each having a first sensing unit, respectively and a second electrode; touch screen control chip, the touch screen controller chip includes a charger member, a discharge device, detection device and the control and computing device, wherein said charging means for charging the first, to the a plurality of electrodes of the first sensing unit sensing units and a high level signal is applied to the second electrode is grounded to a capacitance of the self-generated by the first sensing unit is touched a sensing unit in the first charge; in the second charging process, a high level signal is applied to the first electrode of one of said plurality of sensing Wu single sensing unit and a second electrode, or to the first electrode and a second electrode a high level signal is applied to the first electrode and the second electrode and the other turned off to charge the second capacitor self; and the third charging process, to the 述多个感应单元中的一个感应单元的第一电极施加高电平信号并将所述第二电极接地,以对所述自电容进行第三次充电, 所述放电器件,用于在所述充电器件对所述自电容第二次充电之后对所述自电容进行第一次放电,以及在所述充电器件对所述自电容进行第三次充电之后,将所述一个感应单元的第一电极和第二电极接地,或者,将所述第一电极和所述第二电极中的一个接地并将所述第一电极和所述第二电极中的另一个断开以对所述自电容进行第二次放电,和所述检测器件,用于从对应的所述第一电极或第二电极进行检测以获得所述第一次充电和所述第二次充电之间的第一检测变化值,及从对应的所述第一电极或第二电极进行检测以获得所述第三次充电和所述第二次放电之间的第二检测变化值;和所述控制及计算器件,用于对所述充电器件、放电 A first electrode of said plurality of sensing means sensing units applied to the second electrode is grounded and the high level signal, for charging the third capacitor from the discharging means, for the said charging member after the self-capacitance of the second capacitor from the first discharge charging, the charger member and after the third time since the charging capacitor, the first one sensing unit a ground electrode and a second electrode, or the other one of said first ground electrode and the second electrode and the first electrode and the second electrode is disconnected from the capacitor to the a second discharge, and the detection means for detecting from the corresponding first or second electrode to obtain a first detection of a change between the first charge and the second charge value, and detects from the corresponding first or second electrode to obtain a second detected value changes between the third and the second charge-discharge; and said control and computing device, with to the charger member, the discharge 器件、检测器件进行控制,并根据第一检测变化值和第二检测变化值计算所述自电容至所述第一电极之间的第一电阻和所述自电容至所述第二电极之间的第二电阻之间的比例关系,并根据所述第一电阻和所述第二电阻之间的比例关系确定触摸位置。 It means, detecting means controlling, and calculates the self-capacitance between the second electrode to the first to the resistance between the first electrode and the self-capacitance detecting a change in value according to a first change value and the second detection the ratio between the second resistor, and determines the touch location based on the proportional relationship between the first resistor and the second resistor.
2.如权利要求I所述的触控装置,其特征在于,所述检测器件为电容检测器件CTS。 2. The touch device according to claim I, wherein said detection means is a capacitance detection device CTS.
3.如权利要求I所述的触控装置,其特征在于,所述感应单元为矩形,且所述多个感应单元与所述触摸屏的第一方向相互平行,所述触摸位置为在所述第一方向上的触摸位置。 The touch device of claim I, wherein the sensing means is rectangular, and the plurality of sensing units with a first direction parallel to each of the touch screen, the touch location is in the a touch position in the first direction.
4.如权利要求I所述的触控装置,其特征在于,所述感应单元包括: 多个第一部分和多个平行的第二部分,其中,相邻的所述第一部分之间通过所述第二部分相连,以形成多个交替排列的第一凹槽和第二凹槽,其中,所述多个第一凹槽和所述多个第二凹槽的开口方向相反,所述触摸位置为触摸物体在所述第一方向上的触摸位置。 The touch device of claim I, wherein the sensing unit comprises: a first portion and a second portion of the plurality of plurality of parallel, wherein between said adjacent ones of the first portion by a second portion connected to the first and second grooves form a plurality of alternately arranged, wherein said plurality of grooves and said first plurality of openings is opposite to the direction of the second recess, the touch location a touch object touches a position in the first direction.
5.如权利要求3或4所述的触控装置,其特征在于,所述第一方向为所述感应单元的长度方向,第二方向为垂直于所述感应单元的方向,所述感应单元水平平行设置或垂直平行设置。 The touch device of claim 3 or claim 4, wherein said first direction is a longitudinal direction of the sensing unit, a second direction perpendicular to said direction sensing means, the sensing unit horizontally or vertically arranged in parallel are arranged in parallel.
6.如权利要求I所述的触控装置,其特征在于,所述多个不相交的感应单元位于同一层。 The touch device of claim I as claimed in claim, wherein said plurality of disjoint sensing unit in the same layer.
7.如权利要求I所述的触控装置,其特征在于,所述感应单元包括: 第六部分,所述第六部分的一端具有所述第一电极; 第七部分,所述第七部分的一端与所述第六部分的另一端相连,所述第七部分的另一端具有所述第二电极。 The touch device of claim I, wherein the sensing unit comprises: a sixth portion, said sixth section having an end of said first electrode; a seventh portion, the portion VII the end and the other end portion is connected to the sixth, the seventh and the other end portion having the second electrode. 第三部分; 不相交的第四部分和第五部分,所述第四部分一端与所述第三部分的一端相连,所述第五部分的一端与所述第三部分的另一端相连,所述第四部分的另一端具有所述第一电极,且所述第五部分的另一端具有所述第二电极。 The third portion; and a fourth portion disjoint fifth portion, the fourth portion with an end connected to one end of said third portion, said one end connected to the other end portion of the third portion of the V, the the other end of said fourth portion having the first electrode, and the other end of the fifth portion having the second electrode.
8.如权利要求I所述的触控装置,其特征在于,所述感应单元包括: 第三部分; 不相交的第四部分和第五部分,所述第四部分一端与所述第三部分的一端相连,所述第五部分的一端与所述第三部分的另一端相连,所述第四部分的另一端具有所述第一电极,且所述第五部分的另一端具有所述第二电极。 The touch device of claim I, wherein the sensing unit comprises: a third portion; fourth portion and the fifth portion disjoint, one end of said fourth portion of said third portion one end connected to one end of the fifth portion is connected to the other end of the third portion, the other end of the fourth portion having the first electrode, and the other end of the fifth portion having the first two electrodes.
9. 一种便携式电子设备,其特征在于,包括如权利要求1-8任一项所述的触控装置。 9. A portable electronic apparatus comprising the touch device as claimed in any one of claims 1-8.
CN 201120573486 2011-07-26 2011-12-31 Touch device and a portable electronic device CN202649983U (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201110211018.2 2011-07-26
CN201110210959 2011-07-26
CN201110210959.4 2011-07-26
CN201110211018 2011-07-26
CN 201120573486 CN202649983U (en) 2011-07-26 2011-12-31 Touch device and a portable electronic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120573486 CN202649983U (en) 2011-07-26 2011-12-31 Touch device and a portable electronic device

Publications (1)

Publication Number Publication Date
CN202649983U true CN202649983U (en) 2013-01-02

Family

ID=47169405

Family Applications (40)

Application Number Title Priority Date Filing Date
CN201110459486.1A CN102902440B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN201110459313.XA CN102902431B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN 201120573486 CN202649983U (en) 2011-07-26 2011-12-31 Touch device and a portable electronic device
CN 201120573691 CN202548806U (en) 2011-07-26 2011-12-31 Touch control apparatus and portable electronic equipment
CN201110459115.3A CN102902427B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN201110459408.1A CN102902435B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN201110459333.7A CN102902433B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN201110459449.0A CN102902436B (en) 2011-07-26 2011-12-31 The touch screen and the touch device detecting apparatus
CN 201120573465 CN202548805U (en) 2011-07-26 2011-12-31 Touch screen detection equipment, touch device and portable electronic equipment
CN 201120573791 CN202649984U (en) 2011-07-26 2011-12-31 Touch screen detection device, touch control device, and portable electronic device
CN201110459295.5A CN102902430B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN 201120573769 CN202548807U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic equipment
CN201110459367.6A CN102902434B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN201110459482.3A CN102902439B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN201110459292.1A CN102902428B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN201110459466.4A CN102902437B (en) 2011-07-26 2011-12-31 The touch screen and the touch device detecting apparatus
CN 201120573859 CN202795285U (en) 2011-07-26 2011-12-31 Touch device and a portable electronic device
CN 201120573629 CN202600660U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic equipment
CN 201120573379 CN202795310U (en) 2011-07-26 2011-12-31 Touch device and a portable electronic device
CN201110459316.3A CN102902432B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN 201120573468 CN202795312U (en) 2011-07-26 2011-12-31 Touch device and a portable electronic device
CN201110459473.4A CN102902438B (en) 2011-07-26 2011-12-31 The method of detecting a touch, a touch screen and a touch detection device means
CN 201120573797 CN202600661U (en) 2011-07-26 2011-12-31 Touch screen detection equipment, touch control device and portable electronic equipment
CN 201120573222 CN202795309U (en) 2011-07-26 2011-12-31 Touch device and a portable electronic device
CN201110459293.6A CN102902429B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN 201120573430 CN202795311U (en) 2011-07-26 2011-12-31 Touch device and a portable electronic device
CN 201120573217 CN202548804U (en) 2011-07-26 2011-12-31 Touch device and portable electronic device
CN 201120573805 CN202795313U (en) 2011-07-26 2011-12-31 Touch device and a portable electronic device
CN 201220134097 CN202795314U (en) 2011-07-26 2012-04-01 Touch control device and touch detecting assembly thereof and portable electronic device
CN 201220134087 CN202649961U (en) 2011-07-26 2012-04-01 Touch detection assembly, touch control device and portable electric equipment
CN201210093646.XA CN102902398B (en) 2011-07-26 2012-04-01 The portable electronic device, the touch device and the touch detection component
CN201210093649.3A CN102902441B (en) 2011-07-26 2012-04-01 The touch detection component, the touch device and a portable electronic device
CN 201220134531 CN202795315U (en) 2011-07-26 2012-04-01 Touching detection assembly and touching control device and portable type electronic device
CN 201220134544 CN202615359U (en) 2011-07-26 2012-04-01 Touch detection module and touch control device and portable electronic equipment
CN 201220134109 CN202870787U (en) 2011-07-26 2012-04-01 Touch detection component, touch control device and portable electronic equipment
CN201210093681.1A CN102902443B (en) 2011-07-26 2012-04-01 A touch detection component, the touch device and a portable electronic device
CN 201220134083 CN202649960U (en) 2011-07-26 2012-04-01 Portable electric equipment, touch detection assembly and touch control device
CN201210093687.9A CN102902399B (en) 2011-07-26 2012-04-01 The touch detection component, the touch device and a portable electronic device
CN201210093658.2A CN102902442B (en) 2011-07-26 2012-04-01 The touch detection component, the touch device and a portable electronic device
CN201210094078.5A CN102902444B (en) 2011-07-26 2012-04-01 The touch detection component, a touch device and a portable electronic device

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CN201110459486.1A CN102902440B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN201110459313.XA CN102902431B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch

Family Applications After (37)

Application Number Title Priority Date Filing Date
CN 201120573691 CN202548806U (en) 2011-07-26 2011-12-31 Touch control apparatus and portable electronic equipment
CN201110459115.3A CN102902427B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN201110459408.1A CN102902435B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN201110459333.7A CN102902433B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN201110459449.0A CN102902436B (en) 2011-07-26 2011-12-31 The touch screen and the touch device detecting apparatus
CN 201120573465 CN202548805U (en) 2011-07-26 2011-12-31 Touch screen detection equipment, touch device and portable electronic equipment
CN 201120573791 CN202649984U (en) 2011-07-26 2011-12-31 Touch screen detection device, touch control device, and portable electronic device
CN201110459295.5A CN102902430B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN 201120573769 CN202548807U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic equipment
CN201110459367.6A CN102902434B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN201110459482.3A CN102902439B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN201110459292.1A CN102902428B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN201110459466.4A CN102902437B (en) 2011-07-26 2011-12-31 The touch screen and the touch device detecting apparatus
CN 201120573859 CN202795285U (en) 2011-07-26 2011-12-31 Touch device and a portable electronic device
CN 201120573629 CN202600660U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic equipment
CN 201120573379 CN202795310U (en) 2011-07-26 2011-12-31 Touch device and a portable electronic device
CN201110459316.3A CN102902432B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN 201120573468 CN202795312U (en) 2011-07-26 2011-12-31 Touch device and a portable electronic device
CN201110459473.4A CN102902438B (en) 2011-07-26 2011-12-31 The method of detecting a touch, a touch screen and a touch detection device means
CN 201120573797 CN202600661U (en) 2011-07-26 2011-12-31 Touch screen detection equipment, touch control device and portable electronic equipment
CN 201120573222 CN202795309U (en) 2011-07-26 2011-12-31 Touch device and a portable electronic device
CN201110459293.6A CN102902429B (en) 2011-07-26 2011-12-31 The touch detection apparatus and a touch
CN 201120573430 CN202795311U (en) 2011-07-26 2011-12-31 Touch device and a portable electronic device
CN 201120573217 CN202548804U (en) 2011-07-26 2011-12-31 Touch device and portable electronic device
CN 201120573805 CN202795313U (en) 2011-07-26 2011-12-31 Touch device and a portable electronic device
CN 201220134097 CN202795314U (en) 2011-07-26 2012-04-01 Touch control device and touch detecting assembly thereof and portable electronic device
CN 201220134087 CN202649961U (en) 2011-07-26 2012-04-01 Touch detection assembly, touch control device and portable electric equipment
CN201210093646.XA CN102902398B (en) 2011-07-26 2012-04-01 The portable electronic device, the touch device and the touch detection component
CN201210093649.3A CN102902441B (en) 2011-07-26 2012-04-01 The touch detection component, the touch device and a portable electronic device
CN 201220134531 CN202795315U (en) 2011-07-26 2012-04-01 Touching detection assembly and touching control device and portable type electronic device
CN 201220134544 CN202615359U (en) 2011-07-26 2012-04-01 Touch detection module and touch control device and portable electronic equipment
CN 201220134109 CN202870787U (en) 2011-07-26 2012-04-01 Touch detection component, touch control device and portable electronic equipment
CN201210093681.1A CN102902443B (en) 2011-07-26 2012-04-01 A touch detection component, the touch device and a portable electronic device
CN 201220134083 CN202649960U (en) 2011-07-26 2012-04-01 Portable electric equipment, touch detection assembly and touch control device
CN201210093687.9A CN102902399B (en) 2011-07-26 2012-04-01 The touch detection component, the touch device and a portable electronic device
CN201210093658.2A CN102902442B (en) 2011-07-26 2012-04-01 The touch detection component, the touch device and a portable electronic device
CN201210094078.5A CN102902444B (en) 2011-07-26 2012-04-01 The touch detection component, a touch device and a portable electronic device

Country Status (3)

Country Link
CN (40) CN102902440B (en)
TW (14) TWI475437B (en)
WO (7) WO2013013625A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102902440B (en) * 2011-07-26 2016-03-30 比亚迪股份有限公司 The touch detection apparatus and a touch
CN103105988B (en) * 2013-01-22 2016-01-06 北京京东方光电科技有限公司 A method of manufacturing a capacitive touch screen and a capacitive touch screen, a touch display
CN103294319A (en) * 2013-06-06 2013-09-11 敦泰科技有限公司 Capacitive touch screen
TWI502460B (en) * 2013-08-07 2015-10-01 Focaltech Electronics Ltd A self-capacitive touch screen and a touch control apparatus
US9552089B2 (en) 2013-08-07 2017-01-24 Synaptics Incorporated Capacitive sensing using a matrix electrode pattern
CN103455228B (en) * 2013-08-30 2016-10-19 珠海中慧微电子有限公司 The method of sensing point and the capacitive touch screen excitation voltage load time is automatically calculated
WO2015058350A1 (en) * 2013-10-22 2015-04-30 敦泰科技有限公司 Self-capacitance change detection method and self-capacitance sensing device for touch screen
CN103699278B (en) * 2013-10-22 2017-01-11 敦泰电子有限公司 Self-capacitance and self capacitance change detection method for a touch screen sensing means
TWI515634B (en) * 2013-11-08 2016-01-01 Elan Microelectronics Corp Touch device and scanning method
JP6216252B2 (en) * 2014-01-09 2017-10-18 アルプス電気株式会社 Input device
CN104808870A (en) * 2014-01-23 2015-07-29 天津富纳源创科技有限公司 Detection method of touch point of single-layer capacitive touch screen
CN104850283B (en) * 2014-02-14 2018-02-02 晨星半导体股份有限公司 Meandering segments using the resistance increasing self-contained touch panel electrode
TWI610203B (en) * 2014-02-14 2018-01-01 晨星半導體股份有限公司 Electrode of self-capacitive touch panel utilizing serpentine trace to increase resistance and self-capacitive touch panel
US9703431B2 (en) 2014-06-03 2017-07-11 Synaptics Incorporated Noise detection and mitigation for capacitive sensing devices
US9753587B2 (en) 2014-06-05 2017-09-05 Synaptics Incorporated Driving sensor electrodes for absolute capacitive sensing
US9703430B2 (en) 2014-06-30 2017-07-11 Synaptics Incorporated Driving sensor electrodes for proximity sensing
US9746975B2 (en) 2015-03-27 2017-08-29 Synaptics Incorporated Capacitive measurement processing for mode changes
CN107328555A (en) * 2017-06-20 2017-11-07 合肥市惠科精密模具有限公司 Display screen foreign matter detection method

Family Cites Families (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1091350A (en) * 1996-09-10 1998-04-10 Tokyo Cosmos Electric Co Ltd Touch panel
JP3220405B2 (en) * 1997-02-20 2001-10-22 アルプス電気株式会社 Coordinate input device
US6057903A (en) * 1998-08-18 2000-05-02 International Business Machines Corporation Liquid crystal display device employing a guard plane between a layer for measuring touch position and common electrode layer
US6297811B1 (en) * 1999-06-02 2001-10-02 Elo Touchsystems, Inc. Projective capacitive touchscreen
JP2006504948A (en) * 2002-10-31 2006-02-09 フィリップ、ハラルドPHILIPP,Harald Capacitive position sensor utilizing a charge transfer
TWI258708B (en) * 2005-01-27 2006-07-21 Apex Material Technology Corp Resistive touch panel, and it manufacturing method
CN101384981B (en) * 2006-02-10 2011-07-13 夏普株式会社 Touch panel coordinate position detection device
GB2439614B (en) * 2006-05-31 2008-12-24 Harald Philipp Two-dimensional position sensor
TWI332169B (en) * 2007-05-11 2010-10-21 Sense Pad Tech Co Ltd
KR101530189B1 (en) * 2007-07-19 2015-06-22 (주)멜파스 Touchscreen apparatus having multiple bar-type transparent electrodes
TW200935290A (en) * 2008-01-15 2009-08-16 Ad Semiconductor Co Ltd Resistive touch screen which can identify multi-touch
JP5094376B2 (en) * 2007-12-28 2012-12-12 株式会社ワコム Position detection device
CN201174111Y (en) * 2008-03-12 2008-12-31 洋华光电股份有限公司 Signal conducting construction of touching control panel
US8830180B2 (en) * 2008-04-10 2014-09-09 Atmel Corporation Capacitive position sensor
US8487898B2 (en) * 2008-04-25 2013-07-16 Apple Inc. Ground guard for capacitive sensing
CN101655754B (en) * 2008-08-21 2014-03-26 株式会社和冠 Extended touchscreen pattern
CN101661356B (en) * 2008-08-25 2011-07-06 盛群半导体股份有限公司 Capacitance charge compensation method for touch induction device
CN101751172A (en) * 2008-12-08 2010-06-23 上海天马微电子有限公司 Touch position detecting method and touch screen
JP5113773B2 (en) * 2009-01-20 2013-01-09 株式会社ジャパンディスプレイイースト Display device
CN101847066A (en) * 2009-03-25 2010-09-29 友达光电股份有限公司 Mutual capacitance type touch control display device
JP5193942B2 (en) * 2009-05-14 2013-05-08 京セラディスプレイ株式会社 Capacitive touch panel device
TWI543048B (en) * 2009-05-15 2016-07-21 Mstar Semiconductor Inc The capacitive sensing touch panel sensing method and sensing structure
TWI528250B (en) * 2009-06-25 2016-04-01 Elan Microelectronics Corp Object Detector and Method for Capacitive Touchpad
TW201102895A (en) * 2009-07-10 2011-01-16 Focaltech Systems Ltd Ultra-thin mutual capacitance touch panel and assembly-type ultra-thin touch panel
CN101996014B (en) * 2009-08-21 2013-08-14 宏达国际电子股份有限公司 Pressure detection method of touch sensing element and electronic device using same
US9632628B2 (en) * 2009-10-23 2017-04-25 Atmel Corporation Interdigitated touchscreen electrodes
TWI489356B (en) * 2009-12-15 2015-06-21 Au Optronics Corp Touch display device and touch sensing device
TWI417777B (en) * 2009-12-24 2013-12-01 Orise Technology Co Ltd Capacitive touch panel with high touching sensitivity
KR20110076188A (en) * 2009-12-29 2011-07-06 삼성전자주식회사 Mutual capacitance sensing device and method for manufacturing the same
CN101840293B (en) * 2010-01-21 2012-03-21 宸鸿科技(厦门)有限公司 Scanning method for projected capacitive touch panels
CN101923419A (en) * 2010-04-20 2010-12-22 敦泰科技有限公司 Self-capacitance touch screen with one-dimensional electrodes and coordinate data processing method thereof
TWI426435B (en) * 2010-09-14 2014-02-11 Sentelic Corp
CN101984391B (en) * 2010-10-13 2012-12-26 友达光电股份有限公司 Touch panel and repair method thereof
TWI426437B (en) * 2010-10-28 2014-02-11 Young Lighting Technology Inc Capacitive touch panel
TWI421756B (en) * 2010-12-23 2014-01-01 Au Optronics Corp Touch display panel and touch sensing panel
CN102902440B (en) * 2011-07-26 2016-03-30 比亚迪股份有限公司 The touch detection apparatus and a touch
CN202267944U (en) * 2011-07-26 2012-06-06 比亚迪股份有限公司 The touch panel device and a touch detection device
CN202422046U (en) * 2011-07-26 2012-09-05 比亚迪股份有限公司 Induction unit, touch screen detection device and touch control device

Also Published As

Publication number Publication date
CN102902438B (en) 2016-06-01
CN202795315U (en) 2013-03-13
CN102902398A (en) 2013-01-30
CN202795311U (en) 2013-03-13
CN202649961U (en) 2013-01-02
WO2013013636A1 (en) 2013-01-31
CN202548806U (en) 2012-11-21
TW201324296A (en) 2013-06-16
WO2013013637A1 (en) 2013-01-31
CN102902428A (en) 2013-01-30
TW201319904A (en) 2013-05-16
TWM453897U (en) 2013-05-21
TWM464745U (en) 2013-11-01
CN102902432B (en) 2016-03-02
CN202870787U (en) 2013-04-10
CN202600660U (en) 2012-12-12
CN102902438A (en) 2013-01-30
CN102902439A (en) 2013-01-30
CN102902442B (en) 2016-04-27
CN102902431B (en) 2016-09-07
CN102902434B (en) 2015-09-30
TWI483164B (en) 2015-05-01
CN202795314U (en) 2013-03-13
WO2013013635A1 (en) 2013-01-31
CN102902435A (en) 2013-01-30
CN102902427B (en) 2015-09-02
CN102902441A (en) 2013-01-30
TWI494833B (en) 2015-08-01
CN102902443B (en) 2016-01-13
TW201319903A (en) 2013-05-16
CN102902398B (en) 2016-03-02
WO2013013625A1 (en) 2013-01-31
CN102902399B (en) 2015-12-09
TW201308180A (en) 2013-02-16
CN102902434A (en) 2013-01-30
TWM451595U (en) 2013-04-21
WO2013013634A1 (en) 2013-01-31
CN202795312U (en) 2013-03-13
CN102902441B (en) 2016-06-22
CN102902431A (en) 2013-01-30
CN102902429B (en) 2016-05-04
CN102902442A (en) 2013-01-30
TW201310317A (en) 2013-03-01
TWM457238U (en) 2013-07-11
CN202795313U (en) 2013-03-13
CN202548805U (en) 2012-11-21
CN102902436B (en) 2015-12-02
CN102902429A (en) 2013-01-30
TWI482074B (en) 2015-04-21
CN102902432A (en) 2013-01-30
CN102902428B (en) 2016-09-07
CN102902444B (en) 2016-08-17
CN102902437B (en) 2016-04-27
CN102902440A (en) 2013-01-30
CN102902435B (en) 2015-12-02
CN102902439B (en) 2016-11-09
WO2013013624A1 (en) 2013-01-31
TWI486848B (en) 2015-06-01
TWM470979U (en) 2014-01-21
CN102902436A (en) 2013-01-30
CN102902440B (en) 2016-03-30
CN102902443A (en) 2013-01-30
CN202795310U (en) 2013-03-13
TW201308156A (en) 2013-02-16
CN102902444A (en) 2013-01-30
TWI485604B (en) 2015-05-21
CN102902399A (en) 2013-01-30
CN202649960U (en) 2013-01-02
TWI479399B (en) 2015-04-01
CN202548804U (en) 2012-11-21
TWM450007U (en) 2013-04-01
CN202600661U (en) 2012-12-12
CN202548807U (en) 2012-11-21
TWM449305U (en) 2013-03-21
CN102902430A (en) 2013-01-30
CN202795309U (en) 2013-03-13
CN102902437A (en) 2013-01-30
CN102902433A (en) 2013-01-30
CN102902430B (en) 2016-03-30
CN102902433B (en) 2017-01-25
TWI475437B (en) 2015-03-01
CN102902427A (en) 2013-01-30
WO2013013627A1 (en) 2013-01-31
TW201305892A (en) 2013-02-01
CN202649984U (en) 2013-01-02
CN202795285U (en) 2013-03-13
CN202615359U (en) 2012-12-19

Similar Documents

Publication Publication Date Title
US10282026B2 (en) Measuring body capacitance effect in touch sensitive device
US20120169650A1 (en) Capacitive touch screen
KR101076234B1 (en) Touch screen input device
CN101566900B (en) Display device
US8120371B2 (en) Object position sensing apparatus
KR20120007716U (en) Capacitive type touch sensor, touch detection device and touch control terminal
US20110175834A1 (en) Touch panel and input recognition device using the touch panel
US9075484B2 (en) Sensor patterns for mutual capacitance touchscreens
EP2811379A1 (en) Touch liquid crystal display device
US20120044198A1 (en) Self shielding capacitance sensing panel
CN101901090B (en) Display device
CN104951124B (en) The touch detecting method thereof and performing touch detector
CN101634923A (en) A display device
TWI517012B (en) A Single Layer Self - Capacitive Touch Screen for Multi - Touch Recognition and Its Data Processing
US8274491B2 (en) Capacitive touchscreen signal acquisition without panel reset
CN103823592B (en) A display device with a mechanical sensing function
WO2014006904A1 (en) A Capacitive Touch Panel with Height Determination Function
CN101261559A (en) Touch control panel
CN102736804A (en) Two-dimensional capacitive touch panel with single sensor layer
JP2013501983A (en) Active touch system
US8410795B1 (en) Serpentine touch sensor pattern
CN102243555A (en) Capacitance sensor and information input apparatus
US9389258B2 (en) SLIM sensor design with minimum tail effect
US9600125B2 (en) Sensor array with edge pattern
US9105255B2 (en) Discriminative capacitive touch panel

Legal Events

Date Code Title Description
C14 Granted