CN103049145A - Mutual capacitive touch induction device and electronic system containing same - Google Patents

Mutual capacitive touch induction device and electronic system containing same Download PDF

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Publication number
CN103049145A
CN103049145A CN2011103292826A CN201110329282A CN103049145A CN 103049145 A CN103049145 A CN 103049145A CN 2011103292826 A CN2011103292826 A CN 2011103292826A CN 201110329282 A CN201110329282 A CN 201110329282A CN 103049145 A CN103049145 A CN 103049145A
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sensing
electrode
electrodes
region
area
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CN2011103292826A
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Chinese (zh)
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叶丁豪
张复胜
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晨星软件研发(深圳)有限公司
晨星半导体股份有限公司
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Priority to CN2011103292826A priority Critical patent/CN103049145A/en
Publication of CN103049145A publication Critical patent/CN103049145A/en

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Abstract

The invention relates to a mutual capacitive touch induction device and an electronic system containing the same. The mutual capacitive touch induction device comprises an induction panel, a plurality of driving electrodes and a plurality of induction electrodes. The induction panel is actually parallel to a reference plane. The driving electrodes and the induction electrodes form a matrix. The matrix comprises a plurality of unit induction areas. Each unit induction area is relevant with at least one driving electrode and at least one induction electrode. A gap is arranged between the driving electrode and the induction electrode. The length of the gap projected on the reference plane is larger than the sum of the diagonal length of the unit induction areas.

Description

互容式触控感应装置及包含互容式触控感应装置的电子系统 Mutual capacitance touch sensing device and comprising a mutual capacitance touch sensing device electronic system

技术领域 FIELD

[0001] 本发明与触控技术相关,并且尤其与用以增强触控装置的噪声抵抗能力的技术相关。 [0001] The present invention is related to touch technology, and in particular the noise associated with the art to enhance the resistance of the touch device.

背景技术 Background technique

[0002] 随着科技日益进步,各种电子产品的操作介面都愈来愈人性化。 [0002] With technological advances, user interface various electronic products are more and more humane. 举例而言,透过触控屏幕,使用者可直接以手指或触控笔在屏幕上操作程序、输入讯息/文字/图样,省去使用其它输入装置的麻烦。 For example, through the touch screen, the user can directly finger or stylus on the screen procedure, an input message / text / drawings, eliminating cumbersome to use other input device. 实际上,触控屏幕通常是由一感应面板及设置于感应面板后方的一显示器组成。 In fact, usually caused by a touch screen panel and a sensor disposed on a rear monitor sensor panels. 根据使用者在感应面板上所触碰的位置以及当时显示器所呈现的画面,电子装置可判断该次触碰的意涵,并执行相对应的操作结果。 The screen of the user on the touch sensor panel and the position of the display when presented, the electronic device may determine the times of touch of the implications, and performs an operation corresponding to a result. 现有的触控技术大致分为电阻式、电容式、电磁感应式、超音波式以及光学式几类。 Roughly classified into the prior art resistive touch, capacitive, electromagnetic induction type, an optical type and ultrasonic type categories. 互容式(mutual-capacitance)触控技术具有可实现多点触控方案的优点,因此近年来被广泛应用在许多产品中。 Mutual capacitance (mutual-capacitance) touch technology can achieve the advantages of having a multi-point touch control scheme, so in recent years been widely used in many products.

[0003] 互容式触控感应装置的感应面板包含多以透明导电材料制成的电极,这些电极交错布满整个感应面板。 [0003] The touch sensing panel mutual capacitance sensing means comprises a plurality of electrodes made of a transparent conductive material, interleaved electrodes covered the entire sensing panel. 请参阅图1(A)所示的感应装置俯视图,此例中多平行于X方向的电极12均为驱动电极(drive electrode),多平行于Y方向的电极14均为感应电极(senseelectrode)。 See Figure 1 (A) a plan view of the sensing device shown in this embodiment, the multi-electrode 12 parallel to the X direction are the drive electrodes (drive electrode), multi-electrode sensing electrodes 14 are parallel to the Y direction (senseelectrode). 上述两种不同的电极构成包含多个单位感应区域的矩阵图样(pattern)。 The above two electrodes comprising a matrix pattern of a plurality of unit sensing area (pattern). 如图1(A)所示,每列驱动电极12各自连接至一驱动器16,每栏感应电极14各自连接至一接收器18。 FIG 1 (A), the column drive electrodes 12 each connected to each of a driver 16, each column sensing electrodes 14 are each connected to a receiver 18. 一般而言,这些驱动器16会依序送出驱动信号,这些接收器18则会持续接收感应信号。 In general, the driver 16 may sequentially sends drive signals, the receiver 18 will continuously receives a sensing signal.

[0004] 图1⑶为图1 (A)的局部放大图,图1 (C)为图1⑶的前视图。 [0004] FIG 1⑶ FIG. 1 (A) is a partial enlarged view of FIG. 1 (C) is a front view of FIG 1⑶. 如前所述,一单位感应区域20由驱动电极12和感应电极14定义。 2,014 defined above, a unit sensing area 12 by the driving electrodes and the sensing electrodes. 于此范例中,驱动电极12和感应电极14设置于相互平行且垂直于Z方向的两个不同平面。 In this example, the drive electrodes 12 and the sensing electrodes 14 disposed on two different planes parallel to each other and perpendicular to the Z direction. 由于两电极被设计为具有不同的电位,因此其间存在一定数量的电力线32。 Since the two electrodes are designed to have different potentials, so there is a certain number of power lines 32 therebetween. 当使用者的手指30接近单位感应区域20时,由于手指30具有一类似接地的性质,驱动电极12和感应电极14间的部分电力线32会被手指30吸引,导致驱动电极12和感应电极14间的互容量降低。 When the finger 30 of the user approaches the unit region 20, since the finger 30 has a property of a similar ground, the driving electrode 12 and sensing electrode portion of the power line 14 of 32 will be attracted finger 30, resulting in 14 driving electrode 12 and sensing electrode mutual capacity decreases. 连接至该感应电极14的接收器18的输出信号会反应出此互容变化量。 Sensing electrodes connected to the receiver 14 output signal 18 will reflect this change in mutual capacitance. 根据该接收器18的位置以及触碰发生时送出驱动信号的驱动器16的位置,后续电路即可判断触碰点在X/Y方向上的座标。 The position of the position of the receiver 18 and sends a drive signal occurs when the touch driver 16, the subsequent circuit can determine the touch point coordinates in the X / Y direction.

[0005] 须说明的是,受到手指30影响的电力线主要分布在图1(B)中所标示的区域22A和22B,也就是驱动电极12和感应电极14在俯视图中的交会处的两个边缘区域。 [0005] It should be noted that the power line by 30 on the finger mainly in (B) in the indicated area of ​​FIG. 1 22A and 22B, i.e. two edges of the drive electrodes 12 and 14 at the intersection of the sensing electrode in plan view in region. 由于屏蔽效应的缘故,感应电极14和驱动电极12的交会处下方大部分的电力线不会受到手指30太大的影响。 Due to the shielding effect, the lower most of the power line is not greatly affected by the finger 30 at the intersection of the induction electrode 14 and the driving electrode 12. 易言之,上述互容变化量主要来自于区域22A和22B的电力线改变。 In another word, the above-described mutual capacitance change amount from the main power line changing region 22A and 22B.

[0006] 在图UA)所示的先前技术中,驱动电极12和感应电极14为宽度相同的长条形电极。 [0006] In FIG UA) shown in the prior art, the driving electrodes and the sensing electrodes 14 to 12 the same width as the elongated electrode. 然而现存感应面板的电极图样不限于此,图2(A)和图3(A)为另外两种现存的电极图样。 However, the electrode pattern existing sensor panel is not limited thereto, FIG. 2 (A) and 3 (A) to the other two existing electrode pattern. 在图2⑷中,驱动电极12比感应电极14宽。 In FIG 2⑷, the drive electrode 12 is wider than the sensing electrode 14. 不过,对图2⑷中的各个单位感应区域而言,使用者的触碰会影响电力线分布的区域同样限于驱动电极12和感应电极14交会处的两个边缘区域,如图2(B)中标示的区域23A和23B。 However, for each unit in the sensitive region of FIG 2⑷, the user touches the power line will affect the distribution of the same area is limited to the intersection of two edge regions of the drive electrodes 12 and the sensing electrodes 14, as shown in FIG 2 (B) denoted regional 23A and 23B.

[0007] 在图3 (A)中,每一个驱动电极12和感应电极14分别为一菱形。 In [0007] in FIG. 3 (A), each drive electrode 12 and sense electrode 14 are respectively a diamond. 图3 (B)为图3(A)的局部放大图。 FIG 3 (B) of FIG. 3 (A) is a partial enlarged view. 同一列中的相邻驱动电极12以平行于X方向的跨桥相连;同一栏中的相邻感应电极14以平行于Y方向的跨桥相连。 Adjacent drive electrodes in the same column to the bridges 12 parallel to the X-direction is connected; sensing electrode adjacent to the same column parallel to the Y direction across the bridge 14 is connected. 此范例中的单位感应区域20由两个驱动电极12和两个感应电极14定义。 20 in this example defines a unit sensing area by the two drive electrodes 12 and the two sensing electrodes 14. 对图3(B)中的单位感应区域20来说,主要是区域24A-24D中的电力线分布会受到使用者的触碰影响。 Of FIG 3 (B) a unit 20 sensing area, the main region 24A-24D is the distribution of power lines will be touching affect users. 由图3(B)可看出,区域24A-24D大致等同于单位感应区域20的对角线的邻近范围。 As can be seen from FIG. 3 (B), the region 24A-24D is substantially equal to the diagonal of the proximity sensing unit region 20.

[0008] 为了提供一定程度的触控精确度,图1(B)、图2(B)和图3(B)中的单位感应区域20面积通常大致相同,例如皆为5毫米*5毫米。 [0008] In order to provide a degree of accuracy of the touch, FIG. 1 (B), FIG. 2 (B) 320 and the area (B) in a unit sensing area is typically substantially the same, for example, are both 5 mm * 5 mm. 对单一单位感应区域来说,使用者造成的互容变化量愈大,愈不容易受到噪声干扰,后续电路也愈能正确判读触碰点的位置。 Sensing area of ​​a single unit, the change in capacitance caused by the greater amount of user interaction, the more noise is not susceptible to subsequent circuits more correctly interpret the position of the touch point. 目前在某些采用多点触控功能的电子系统中,为了增加互容变化量,以对抗多指同时动作所引入的噪声,驱动电极12和感应电极14间的电位差被提高到十几伏特。 In certain currently using the multi-touch function of the electronic system in order to increase mutual capacitance change amount, while the multi-finger against noise introduced by the operation, the drive electrode 12 and the potential difference between the sensing electrode 14 is increased to more than ten volts . 除了耗电量高之外,这种做法的缺点在于,相关电路都必须具有能承受高电压的特性,因此导致触控屏幕的硬体成本大幅上升。 In addition to high power consumption, disadvantage of this approach is that the correlation circuit must have a high withstand voltage characteristic, thus causing the touch screen hardware costs have risen sharply.

发明内容 SUMMARY

[0009] 为解决上述问题,本发明提出一种新的互容式触控感应装置。 [0009] In order to solve the above problems, the present invention provides a new mutual capacitance touch sensing apparatus. 藉由适当设计驱动电极和感应电极的形状及配置,在同样大小的单位感应区域中可有效包含更多会受到使用者的触碰影响的区域,进而提升互容变化量,也就是提升感应信号的信号噪声比(signalto noise ratio, SNR)。 By appropriately designed shape and arrangement of driving electrodes and sensing electrodes, the sensing area in the same size unit may comprise an effective touch region more subject to the influence of the user, thereby improving mutual capacitance variation amount, i.e. enhancing the sense signal signal to noise ratio (signalto noise ratio, SNR). 根据本发明的互容式触控感应装置及电子系统具有良好的定位准度与抗噪声能力。 Having good positioning accuracy and noise immunity in accordance with the mutual capacitance sensing apparatus and an electronic system of the invention. 相较于采用高电位差的先前技术,根据本发明的互容式触控感应装置较为省电,硬体成本也较低。 Compared to the high potential difference between the prior art, the mutual capacitance sensing apparatus according to the invention is more power saving, low cost hardware.

[0010] 根据本发明的一具体实施例为一互容式触控感应装置,其中包含一感应面板、多个驱动电极及多个感应电极。 [0010] According to a particular embodiment of the present invention is a mutual capacitance touch sensing device, wherein the sensor panel comprises a plurality of drive electrodes and a plurality of sensing electrodes. 该感应面板大致平行于一参考平面。 The sensing panel is substantially parallel to a reference plane. 这些驱动电极和这些感应电极被设置为构成矩阵。 The driving electrodes and the sensing electrodes are arranged to form a matrix. 该矩阵包含多个单位感应区域。 The matrix comprises a plurality of unit sensing regions. 各单位感应区域系与至少一驱动电极和至少一感应电极相关。 Each unit being associated with a sensing area of ​​at least one driving electrode and at least one sensing electrode. 该至少一驱动电极和该至少一感应电极间存在一间隙。 Driving the at least one electrode and there is a gap between the at least one sensing electrode. 该间隙投影于该参考平面上的长度大于该单位感应区域的对角线长度总和。 The gap is projected to the reference plane is greater than the sum of the length of the diagonal length of the unit sensing area.

[0011] 根据本发明的另一具体实施例为一电子系统,其中包含一感应面板、多个驱动电极、多个感应电极、一分析模块及一控制模块。 [0011] According to another particular embodiment of the present invention is an electronic system, which comprises a sensor panel, a plurality of drive electrodes, the plurality of sensing electrodes, an analyzing module and a control module. 该感应面板大致平行于一参考平面。 The sensing panel is substantially parallel to a reference plane. 这些驱动电极和这些感应电极被设置为构成一矩阵。 The driving electrodes and the sensing electrodes are arranged to form a matrix. 该矩阵包含多个单位感应区域。 The matrix comprises a plurality of unit sensing regions. 该分析模块用以根据这些感应电极的输出信号判断是哪一个单位感应区域被触动。 The analysis module is configured to determines the output signal of the touch sensing electrode which is a unit sensing area. 控制模块用以根据该分析模块提供的分析结果决定该电子系统的被触动后反应。 A control module for determining the results of the analysis of the electronic system provided by the analysis module is touched after the reaction. 各单位感应区域与至少一驱动电极和至少一感应电极相关。 Each unit sensing area associated with at least one driving electrode and at least one sensing electrode. 该至少一驱动电极和该至少一感应电极间存在一间隙,该间隙投影于该参考平面上的长度大于该单位感应区域的对角线长度总和。 The at least one drive electrode and the at least one sensing electrode exists between a gap which is projected onto the reference plane is greater than the sum of the length of the diagonal length of the unit sensing area.

[0012] 关于本发明的优点与精神可藉由以下发明详述及附图得到进一步的了解。 [0012] The advantages and spirit of the present invention may be further understood by the following detailed description and drawings of the invention.

附图说明 BRIEF DESCRIPTION

[0013] 图1 (A)-图1 (C)、图2 (A)、图2 (B)、图3 (A)、图3 (B)为传统触控感应装置的电极图样示意图。 [0013] FIG 1 (A) - FIG. 1 (C), FIG. 2 (A), FIG. 2 (B), FIG. 3 (A), FIG. 3 (B) is an electrode pattern diagram of a conventional touch sensing apparatus. [0014]图 4 (A)-图4 (C)、图5 (A)-图5 (C)、图6 (A)-图6 (C)、图7 (A)-图7 (C)、图8 (A)-图8 (C)、图9 (A)-图9 (C)为根据本发明的实施例中的触控感应装置的电极图样示意图。 [0014] FIG. 4 (A) - FIG. 4 (C), FIG. 5 (A) - FIG 5 (C), FIG. 6 (A) - FIG. 6 (C), FIG. 7 (A) - FIG. 7 (C) FIG 8 (a) - FIG. 8 (C), FIG. 9 (a) - FIG. 9 (C) according to embodiments of the present invention, the electrode patterns in the touch sensing apparatus of FIG.

[0015] 主要元件符号说明 [0015] Main reference numerals DESCRIPTION

[0016] 12、42、52、62、72、82、92 :驱动电极 [0016] 12,42,52,62,72,82,92: driving electrodes

[0017] 14、44、54、64、74、84、94 :感应电极 [0017] 14,44,54,64,74,84,94: sensing electrode

[0018] 20、40、50、60、70、80、90 :单位感应区域 [0018] 20,40,50,60,70,80,90: sensing unit area

[0019] 22A、22B、23A、23B、24A-24D :贡献互容变化量的区域 [0019] 22A, 22B, 23A, 23B, 24A-24D: Contribution mutual capacitance variation amount of the area

[0020] 41A,51A,51C,61A,71A,81A :中心区域 [0020] 41A, 51A, 51C, 61A, 71A, 81A: central region

[0021] 41B、51B、51D、61B、71B、81B :延伸区域 [0021] 41B, 51B, 51D, 61B, 71B, 81B: extension region

[0022] 16 :驱动器 18 :接收器 [0022] 16: driver 18: Receiver

[0023] 30 :手指 32:电力线 [0023] 30: the finger 32: power line

[0024] 46:间隙 46A:间隙区段 [0024] 46: Gap. 46A: gap segment

[0025] 91A、91C:连结区域 91B、91D :延伸区域 [0025] 91A, 91C: connection area 91B, 91D: extension region

具体实施方式 Detailed ways

[0026] 在图3㈧及图3(B)所示的先前技术中,两种电极的间隙投影在XY平面的长度为单位感应区域20的对角线长度总和,长于图2 (B)中的区域23A、23B在Y方向的长度,更长于图1(B)中的区域22A、22B在Y方向的长度。 The sum of [0026] FIG 3㈧ and 3 (B) of the prior art, two kinds of electrodes projection gap XY plane in the longitudinal region 20 of the unit length of the diagonal, longer than in FIG. 2 (B) is regions 23A, 23B in the Y-direction length, is longer in region (B) in FIG. 1 22A, 22B in the Y direction length. 经由模拟实验可发现,在单位感应面积大小、电极材质等条件相同的情况下,图1、图2和图3所示的电极图样受到相同的使用者触碰时,在单位感应面积中会出现的互容变化量由大到小依序为图3、图2、图1。 Via simulation can be found in the same area size sensor unit, the electrode material and the like conditions, FIGS. 1, 2 and 3 by the electrode pattern shown when a user touches the same, there will be in a unit area of ​​the induction the mutual capacitance change amount from largest to smallest of FIG. 3, FIG. 2, FIG.

[0027] 由上述实验结果可推论,增大单位感应面积中电力线分布会受到使用者的触碰影响的区域的面积,于受到相同的使用者触碰时,能够使单位感应面积产生较大的互容变化量。 [0027] From the above results it can be deduced, increasing the area of ​​the region will be distribution of power lines affect touch sensing unit area of ​​the user, the user at the same time by touch, enabling a greater area of ​​the sensing unit mutual capacitance variation. 因此,本发明的主要概念之一在于,藉由适当设计驱动电极和感应电极的形状及配置,在同样大小的单位感应区域中包含更大面积的会受到使用者的触碰影响的区域。 Thus, one of the main concepts of the present invention is that, by appropriate design of the shape and arrangement of driving and sensing electrodes comprising the touch area will be larger area of ​​influence of the user in a unit sensing area of ​​the same size.

[0028] 根据本发明的一具体实施例为一互容式触控感应装置。 [0028] According to a particular embodiment of the present invention is a mutual capacitance touch sensing apparatus. 于实际应用中,该互容式触控感应装置可被整合于移动通信装置、平板电脑、个人电脑或是互动式资讯显示看板等电子系统中,但不以这些应用为限。 In practical applications, the mutual capacitance touch sensing means may be integrated in a mobile communication device, a tablet computer, a personal computer or an interactive information system, an electronic display board and the like, but is not limited to these applications. 该互容式触控感应装置包含一感应面板、多个驱动电极及多个感应电极。 The mutual capacitance touch sensing device includes a sensor panel, a plurality of driving electrodes and a plurality of sensing electrodes. 图4(A)为本实施例中的单一电极的形状示意图,图4(B)为本实施例中驱动电极和感应电极的配置示意图。 FIG. 4 (B) a schematic configuration of the present embodiment drive and sense electrodes in the shape of a schematic embodiment of a single electrode embodiment in FIG. 4 (A) of the present embodiment.

[0029] 于此实施例中,每个驱动电极和每个感应电极各自如图4(A)所示,包含一中心区域41A及四个延伸区域41B。 [0029] In this embodiment, each drive electrode and the respective sensing electrodes in FIG. 4 (A) as shown, comprises a central region 41A and four extension region 41B. 这些延伸区域41B环绕中心区域41A设置且分别连接至中心区域41A。 The extension region 41B disposed around the central region 41A and 41A are connected to the central region. 如图4(B)所示,同一列中的相邻驱动电极42以平行于X方向的跨桥相连;同一栏中的相邻感应电极44以平行于Y方向的跨桥相连。 FIG. 4 (B), the same column of the adjacent drive electrodes parallel to the X direction across the bridge 42 is connected; adjacent sensing electrodes 44 in the same column of the bridges are connected in parallel to the Y direction. 多驱动电极42和多感应电极44构成一矩阵。 Multiple drive electrodes 42 and a plurality of sensing electrodes 44 in a matrix configuration. 该矩阵包含多个单位感应区域,且各单位感应区域与至少一驱动电极42和至少一感应电极44相关。 The matrix comprises a plurality of unit sensing area, the sensing area 44 and each unit associated with at least one driving electrode 42 and at least one sensing electrode.

[0030] 图4(C)为图4(B)的局部放大图。 [0030] FIG. 4 (C) of FIG. 4 (B) is a partially enlarged view. 本实施例中的单位感应区域40由两个驱动电极42和两个感应电极44定义。 Two drive electrodes 40 is defined by two sensing electrodes 42 and sensing unit 44 in the present embodiment the region. 实务上,驱动电极42和感应电极44可被设置于相互平行且垂直于Z方向(同时垂直于X方向和Y方向)的两个不同平面,亦可大致设置于同一平面。 In practice, the driving electrode 42 and sensing electrode 44 may be disposed in parallel to each other and perpendicular to the Z-direction (perpendicular to both the X and Y directions) two different planes, also arranged substantially in the same plane. 易言之,根据本发明的互容式触控感应装置可采用单层电极结构,也可采用双层电极结构。 In another word, according to the mutual capacitance touch sensing apparatus according to the present invention can be single-layer electrode structure, two-layer electrode structure may also be employed. 如图4(C)所示,无论是上述两种结构中的哪一种,在XY平面上,除了在跨桥部份有极小的重迭之外,驱动电极42和感应电极44之间都存在一间隙46。 FIG 4 (C) as shown, no matter which of these two structures, in the XY plane, in addition to minimal overlap in part outside the bridges, between the drive electrode 44 and the sensing electrodes 42 46 there is a gap.

[0031] 由于驱动电极42和感应电极44的电位不同,其间因而存在跨越间隙46的电力线。 [0031] Since the potential of the driving electrode 42 and sensing electrode 44 are different, thus there is between the power line 46 across the gap. 对单位感应区域40来说,间隙46的邻近范围也就是主要会受到使用者的触碰影响其电力线分布的区域。 The unit sensing area 40, the proximity of the gap 46 is mainly subject to the user touches the area of ​​influence of the power line distribution thereof. 间隙46投影于XY平面(亦即大致平行于感应面板的一参考平面)的长度愈长,能受到使用者的触碰影响并贡献互容变化量的范围就愈大。 The gap 46 projected on the XY plane (i.e. substantially parallel to a reference plane of the sensor panel) the longer the length, it can impact the user's touch by the scope of the mutual capacitance change and contribute to the greater amount. 间隙46投影于XY平面的长度显然大于单位感应区域40的对角线长度总和。 The length of the gap 46 projected on the XY plane is clearly greater than the sum of the diagonal length of the unit sensing area 40. 实验结果亦证明,在单位感应面积大小、电极材质等条件相同的情况下,图4(B)所示的电极设计确实能较图1、图2、图3等先前技术提供更大的互容变化量。 The results also show that, under the same induction unit size, the electrode material and the like conditions, as shown in (B) of FIG. 4 can indeed prior art electrode design provides greater than the mutual capacitance FIGS. 1, 2, 3, etc. the amount of change.

[0032] 实务上,间隙的长度并非电极图样可决定的单位感应区域中互容变化量的唯一变因。 The [0032] practice, the length of the gap is not the only change may be determined by the electrode pattern area in a unit sensing mutual capacitance change amount. 举例而言,间隙46投影于XY平面的宽度愈窄,两种电极间的电力线耦合力愈强,使用者的触碰愈难以影响电力线分布。 For example, the narrower the gap 46 projected on the XY plane of the width, the power line coupling force between the two electrodes stronger, more difficult to influence the user touches the power distribution line. 另一方面,若间隙46的宽度太宽,两种电极间固有的电力线总量就会较少,亦不利于产生较大的互容变化量。 On the other hand, if the width of the gap 46 is too wide, the total amount of power lines between the two electrodes will be inherently less, nor conducive to a greater amount of mutual capacitance change. 此外,若两相邻间隙区段(例如图4(C)中相邻且大致相互平行的两间隙区段46A)的间距太小,也会发生电力线耦合力太强的情况。 Further, the pitch is too small, too strong a power line coupler will happen if two adjacent gap sections (46A substantially parallel to each other, for example, the two gap sections in FIG. 4 (C) and adjacent). 为了平衡上述考量,于根据本发明的一实施例中,间隙46投影于XY平面上的宽度被设计在O. 03微米-O. 3毫米间,任意两相邻间隙区段则被设计为相隔O. 7毫米-1毫米。 In order to balance the considerations described above, in accordance with an embodiment of the present invention, the width of the gap 46 projected on the XY plane is designed between O. 03 m -O. 3 mm, the gap of any two adjacent segments apart were designed O. 7 mm to 1 mm. 此处所述的尺寸设计概念同样可应用在以下其他实施例中。 Sized concept described herein is equally applicable to other embodiments in the following examples.

[0033] 图5(A)为另一实施例中的单一电极的形状示意图,图5(B)为此实施例中驱动电极和感应电极的配置示意图。 A schematic view of a single electrode the shape of the embodiment [0033] FIG. 5 (A) to another embodiment, FIG. 5 (B) a schematic diagram of the configuration of the drive and sense electrodes for this embodiment. 于此实施例中,每个驱动电极各自如图5(A)所示,包含一中心区域51A及四个延伸区域51B ;每个感应电极各自如图5 (A)所示,包含一中心区域51C及四个延伸区域51D。 In this embodiment, each drive electrode are each shown in FIG 5 (A) as shown, comprises a central region and four extension regions 51A 51B; each of the respective sensing electrodes in FIG. 5 (A), the central zone comprising a 51C and four extension region 51D. 值得注意的是,本实施例可表彰两种电极的形状未必要相同。 It is noted that the shape recognition of the present embodiment may be two kinds of electrodes may not be the same. 多驱动电极52和多感应电极54构成的矩阵亦包含多个单位感应区域。 Multi-matrix driving electrodes 52 and the plurality of sensing electrodes 54 also includes a plurality of units constituting the sensing regions. 图5(C)为图5(B)的局部放大图。 FIG 5 (C) of FIG. 5 (B) is a partially enlarged view. 本实施例中的单位感应区域50由两个驱动电极52和两个感应电极54定义。 Two drive electrodes 50 is defined by two sensing electrodes 52 and sensing unit 54 in the present embodiment the region. 同样地,驱动电极52和感应电极54之间隙投影于XY平面的长度被设计为大于单位感应区域50的对角线长度总和。 Similarly, the gap driving electrodes and the sensing electrodes 52 to 54 of the projected length of the XY plane is designed to be greater than the sum of the diagonal length of the unit sensing area 50.

[0034] 图6(A)为另一实施例中的单一电极的形状示意图,图6(B)为此实施例中驱动电极和感应电极的配置示意图。 Showing the shape of [0034] FIG. 6 (A) is a single electrode in another embodiment of the embodiment, FIG. 6 (B) a schematic diagram of the configuration of the drive and sense electrodes for this embodiment. 于此实施例中,每个驱动电极和感应电极各自如图6(A)所示,包含一中心区域61A及多个延伸区域61B。 In this embodiment, each of the respective drive and sense electrodes in FIG. 6 (A), the central zone comprising a plurality of extension regions 61A and 61B. 值得注意的是,本实施例可表彰各个延伸区域61B的形状未必要相同。 It is noted that the shape recognition of the present embodiment can extend the respective regions 61B are not necessarily be the same. 多驱动电极62和多感应电极64构成的矩阵亦包含多个单位感应区域。 Multiple drive electrodes 62 and a plurality of sensing electrodes 64 also comprises a matrix of a plurality of unit sensing regions. 图6(C)为图6(B)的局部图。 FIG 6 (C) of FIG. 6 (B) is a partial FIG. 本实施例中的单位感应区域60由两个驱动电极62和两个感应电极64定义。 Examples sensing unit region 60 is defined by two drive electrodes 62 and the two sensing electrodes 64 embodiment. 同样地,驱动电极62和感应电极64之间隙投影于XY平面的长度被设计为大于单位感应区域60的对角线长度总和。 Similarly, the driving electrodes and the sensing electrodes 62 of the gap 64 projected on the XY plane length is designed to be greater than the sum of the diagonal length of the sensing area 60 of the unit.

[0035] 图7(A)为另一实施例中的单一电极的形状示意图,图7(B)为此实施例中驱动电极和感应电极的配置示意图。 Showing the shape of [0035] FIG. 7 (A) is a single electrode in another embodiment of the embodiment, FIG. 7 (B) a schematic diagram of the configuration of the drive and sense electrodes for this embodiment. 于此实施例中,每个驱动电极和感应电极各自如图7(A)所示,包含一中心区域71A及四个延伸区域71B。 In this embodiment, each of the respective drive and sense electrodes in FIG. 7 (A) shown in FIG 71A includes a central region and four extension region 71B. 多驱动电极72和多感应电极74构成的一矩阵亦包含多个单位感应区域。 Multiple drive electrodes 72 and a plurality of sensing electrodes 74 also comprises a matrix of a plurality of unit sensing regions. 图7(C)为图7(B)的局部图。 FIG. 7 (C) of FIG. 7 (B) is a partial FIG. 本实施例中的单位感应区域70由两个驱动电极72和两个感应电极74定义。 Examples 70 and 74 define a unit sensing area 72 by the two drive electrodes two sensing electrodes of the present embodiment. 同样地,驱动电极72和感应电极74之间隙投影于XY平面的长度被设计为大于单位感应区域70的对角线长度总和。 Likewise, the driving electrode 72 and the sensing electrodes of the length of the gap 74 projected on the XY plane is designed to be larger than the sum of the diagonal length 70 of the unit sensing area.

[0036] 图8(A)为另一实施例中的单一电极的形状示意图,图8(B)为此实施例中驱动电极和感应电极的配置示意图。 Showing the shape of [0036] FIG. 8 (A) is a single electrode in another embodiment of the embodiment, FIG. 8 (B) a schematic diagram of the configuration of the drive and sense electrodes for this embodiment. 于此实施例中,每个驱动电极和感应电极各自如图8(A)所示,包含一中心区域81A及四个延伸区域81B。 In this embodiment, each of the respective drive and sense electrodes in FIG. 8 (A) shown in FIG 81A includes a central region and four extension region 81B. 多驱动电极82和多感应电极84构成的一矩阵亦包含多个单位感应区域。 Multiple drive electrodes 82 and a plurality of sensing electrodes 84 also comprises a matrix of a plurality of unit sensing regions. 图8(C)为图8(B)的局部图。 Partial view of FIG. 8 (C) of FIG. 8 (B) is. 本实施例中的单位感应区域80由两个驱动电极82和两个感应电极84定义。 A unit sensing area 80 in the present embodiment two drive sensing electrodes 84 and two electrodes 82 are defined. 同样地,驱动电极82和感应电极84之间隙投影于XY平面的长度被设计为大于单位感应区域80的对角线长度总和。 Likewise, the driving electrode 82 and sensing electrode length of the gap 84 projected on the XY plane is designed to be greater than the sum of the diagonal length of the sensing area 80 of the unit.

[0037] 图9(A)为另一实施例中的单一电极的形状示意图,图9(B)为此实施例中驱动电极和感应电极的配置示意图。 Showing the shape of [0037] FIG. 9 (A) is a single electrode in another embodiment of the embodiment, FIG. 9 (B) a schematic diagram of the configuration of the drive and sense electrodes for this embodiment. 于此实施例中,每个驱动电极各自如图9(A)所示,包含一连结区域91A及两个延伸区域91B ;每个感应电极各自如图9 (A)所示,包含一连结区域91C及两个延伸区域91D。 In this embodiment, each of the respective drive electrode as shown in FIG 9 (A), the coupling region comprising a two extension regions 91A and 91B; each of the respective sensing electrodes in FIG. 9 (A), the link region comprising a 91C and two extending regions 91D. 多驱动电极92和多感应电极94构成的一矩阵亦包含多个单位感应区域。 Multiple drive electrodes 92 and a plurality of sensing electrodes 94 also comprises a matrix of a plurality of unit sensing regions. 图9(C)为图9(B)的局部放大图。 A partial enlarged view of FIG. 9 (C) of FIG. 9 (B) is. 本实施例中的单位感应区域90由一个驱动电极92和一个感应电极94定义。 A unit sensing area 90 in the present embodiment defines a sensing electrode 92 and the electrode 94 of a drive. 同样地,驱动电极92和感应电极94之间隙投影于XY平面的长度被设计为大于单位感应区域90的对角线长度总和。 Likewise, the driving electrode 92 and sensing electrode gap 94 projected on the XY plane length is designed to be greater than the sum of the diagonal length of the sensing area 90 of the unit.

[0038] 除了能提供较先前技术更大的互容变化量之外,上述各种实施例还有另一个优点是能提供较均匀的互容感应变化。 [0038] In addition to providing greater technical capacity than the previous amount of change than the cross, for example, another advantage is the above-described various embodiments can provide a more uniform change in mutual capacitance sensor. 以图3(B)为例,若使用者的手指宽度与单位感应区域20的边长相当,且沿X方向划过单位感应区域20,在单位感应区域20的中心点和左右两侧所引发的互容变化量均较小,而在中心点和左右两侧边中间的互容变化量则较大,互容感应变化较为不均匀。 In FIG 3 (B), for example, if a user's finger width of a side of the unit region 20 is equivalent to the unit and across the sensing region 20 in the X direction, the unit sensing area and a center point 20 of the right and left sides caused by the volume change of the mutual capacitance is small, the amount of change in the mutual capacitance and the center point of the left and right side edges of the intermediate large changes in mutual capacitance sensing more uniform. 相对而言,若将同样的测试套用至图4-图9所示的电极图样,都能获得较均匀的互容感应变化。 In contrast, if the same test applied to the electrode pattern shown in FIG. 4-9, can obtain more uniform mutual capacitance sensing changes.

[0039] 根据本发明的另一具体实施例为包含如图4-图9所示的触控式感应装置之一的电子系统。 The electronic system of one of the touch-sensing apparatus [0039] According to another embodiment of the present invention comprising the specific embodiments shown in FIG. 4 to FIG. 9. 除了感应面板和电极之外,该电子系统还进一步包含一控制模块与一分析模块。 In addition to the panel and the sensing electrode, the electronic system further comprises a control module and an analysis module. 该分析模块用以根据这些感应电极的输出信号判断是哪一个单位感应区域被触动。 The analysis module is configured to determines the output signal of the touch sensing electrode which is a unit sensing area. 该控制模块用以根据该分析模块提供的分析结果决定该电子系统的一被触动后反应。 The control module is configured to result of the decision is actuated after a reaction of the electronic system based on the analysis provided by the analyzing module. 举例而言,若该电子系统为一平板电脑,该控制模块可根据使用者在触控感应面板上的动作决定要开启或关闭应用程序,或者是将多个被触控点连接起来,转换为文字/图样内容。 For example, if the electronic system is a tablet computer, the control module may be turned on according to a user operation on the touch sensor panel decisions or close an application, or be connected to a plurality of touch points, converted to text / content pattern. 该电子系统中的触控感应装置的详细实施方式可参考先前的段落,不再赘述。 Detailed embodiments of the electronic system of the touch sensing apparatus may refer to the previous paragraphs, is omitted.

[0040] 如上所述,本发明提出一种新的互容式触控感应装置。 [0040] As described above, the present invention proposes a new mutual capacitance touch sensing apparatus. 藉由适当设计驱动电极和感应电极的形状及配置,在同样大小的单位感应区域中可有效包含更多会受到使用者的触碰影响的区域,进而提升互容变化量,也就是提升感应信号的信号噪声比。 By appropriately designed shape and arrangement of driving electrodes and sensing electrodes, the sensing area in the same size unit may comprise an effective touch region more subject to the influence of the user, thereby improving mutual capacitance variation amount, i.e. enhancing the sense signal the signal to noise ratio. 根据本发明的互容式触控感应装置及电子系统具有良好的定位准度与抗噪声能力。 Having good positioning accuracy and noise immunity in accordance with the mutual capacitance sensing apparatus and an electronic system of the invention. 相较于采用高电位差的先前技术,根据本发明的互容式触控感应装置较为省电,硬体成本也较低。 Compared to the high potential difference between the prior art, the mutual capacitance sensing apparatus according to the invention is more power saving, low cost hardware.

[0041] 藉由以上较佳具体实施例的详述,希望能更加清楚描述本发明的特征与精神,而并非以上述所揭示的较佳具体实施例来对本发明的范畴加以限制。 [0041] With the above detailed description of the preferred embodiment specific embodiments, hoping to more clearly describe the characteristics and spirit of the invention, rather than to particular preferred embodiments disclosed above to be limiting the scope of the present invention. 相反地,其目的是希望能涵盖各种改变及具相等性的安排于本发明所欲申请的专利范围的范畴内。 Conversely, its purpose is to be able to cover various modifications within the scope of the patent and with equal scope of the present invention arranged in the desired application.

Claims (21)

1. 一种互容式触控感应装置,包含: 一感应面板,实质地平行于一参考平面; 多个驱动电极;以及多个感应电极,这些驱动电极和这些感应电极构成一矩阵,该矩阵包含多个单位感应区域; 其中,各单位感应区域与至少一驱动电极和至少一感应电极相关,该至少一驱动电极和该至少一感应电极间存在一间隙,该间隙投影于该参考平面上的长度大于该各单位感应区域的二对角线长度总和。 A mutual capacitance touch sensing apparatus, comprising: a sensor panel, substantially parallel to a reference plane; a plurality of drive electrodes; and a plurality of sensing electrodes, the driving electrodes and the sensing electrodes form a matrix, which sensing unit comprises a plurality of regions; wherein each unit sensing region associated with the at least one driving electrode and at least one sensing electrode, between the at least one drive electrode and the at least one sensing electrode by a gap, the gap is projected on the reference plane length greater than the sum of the lengths of two diagonal lines of the unit sensing area.
2.如权利要求1所述的互容式触控感应装置,其特征在于,每一个驱动电极和每一个感应电极各自包含一中心区域及多个延伸区域,这些延伸区域环绕该中心区域设置且分别连接至该中心区域。 2. The mutual capacitance touch sensing apparatus according to claim 1, wherein each drive electrode and each sensing electrode each comprise a central region and a plurality of extension region which extends around the central region and the region provided are respectively connected to the central region.
3.如权利要求2所述的互容式触控感应装置,其特征在于,每一个感应电极的该中心区域以及每一驱动电极的该中心区域分别为一矩形区域,每一感应电极之这些延伸区域自该矩形区域的四边延伸而出,每两延伸区域之间形成一凹口,每一感应电极的该多个凹口各自供容纳不同驱动电极的这些延伸区域之一。 3. The mutual capacitance touch sensing apparatus according to claim 2, characterized in that the central region of each sensing electrode and the central area of ​​each driving electrode is a rectangular area, respectively, each of the sensing electrode extending from the region extending from the four sides of the rectangular region, a recess is formed between each of the two extension regions, the plurality of recesses each receiving a different one of the sensing electrodes the driving electrodes for each of these areas extends.
4.如权利要求2所述的互容式触控感应装置,其特征在于,每一个感应电极的这些延伸区域实质上为多枝状区域。 4. The mutual capacitance touch sensing apparatus according to claim 2, wherein the area of ​​each sensing electrode extending substantially for the Dendritic area.
5.如权利要求2所述的互容式触控感应装置,其特征在于,每一个感应电极的这些延伸区域实质上为多矩形区域。 5. The mutual capacitance touch sensing apparatus according to claim 2, wherein the area of ​​each sensing electrode extending substantially for the multiple rectangular areas.
6.如权利要求2所述的互容式触控感应装置,其特征在于,这些感应电极与这些驱动电极具有互补的形状。 6. The mutual capacitance touch sensing apparatus according to claim 2, characterized in that the sensing electrodes and the driving electrodes have complementary shapes.
7.如权利要求2所述的互容式触控感应装置,其特征在于,这些感应电极与这些驱动电极具有对称的形状。 7. The mutual capacitance touch sensing apparatus according to claim 2, characterized in that the sensing electrodes and the driving electrodes have a symmetrical shape.
8.如权利要求1所述的互容式触控感应装置,其特征在于,该间隙具有包含两个以上转折点的弯曲形状,且其每一部分投影于该参考平面上的宽度大致相同。 8. The mutual capacitance touch sensing apparatus according to claim 1, wherein the gap has a curved shape comprising two or more turning points, and in which each part of the projection on a plane substantially the same as the width of the reference.
9.如权利要求8所述的互容式触控感应装置,其特征在于,各该单位感应区域所包含的该间隙具有实质相同的形状。 9. The mutual capacitance touch sensing apparatus according to claim 8, wherein each of the gap of the sensing area included in the unit have substantially the same shape.
10.如权利要求1所述的互容式触控感应装置,其特征在于,各该单位感应区域包含一驱动电极的一部分、另一驱动电极的其余部分、一感应电极的一部分以及另一感应电极的其余部分。 As claimed in mutual capacitance touch sensing apparatus according to a portion of a sensing electrode, and another sensing claim, wherein each of the unit sensing area comprising a portion of the drive electrodes, other driving the remaining portion of the electrode, the remaining portion of the electrode.
11.如权利要求10所述的互容式触控感应装置,其特征在于,该驱动电极的一部分具有该驱动电极的一半面积,且该感应电极的一部分具有该感应电极的一半面积。 Mutual capacitance touch sensing apparatus as claimed in claim 10, wherein the driving electrode portion having half the area of ​​the driving electrode and the sensing electrode part having one half of the area of ​​the sensing electrode.
12.如权利要求1所述的互容式触控感应装置,其特征在于,每一个驱动电极和每一个感应电极各自包含一连结区域及多个延伸区域,这些延伸区域设置于该连结区域的一侧且分别连接至该连结区域。 12. The mutual capacitance touch sensing apparatus according to claim 1, characterized in that each driving electrode and a sensing electrode of each connected region and each comprising a plurality of extension region, which is provided in the extension region of the connecting region and connected to one side of the coupling region.
13.如权利要求1所述的互容式触控感应装置,其特征在于,该间隙投影于该参考平面上的宽度在0. 03微米-0. 3毫米之间。 13. The mutual capacitance touch sensing apparatus according to claim 1, wherein the gap width of the projection on the reference plane between 0.03 microns -0. 3 mm.
14.如权利要求1所述的互容式触控感应装置,其特征在于,该间隙包含相邻且大致相互平行的两间隙区段,该两间隙区段相隔0. 7毫米-1毫米。 14. The mutual capacitance touch sensing apparatus according to claim 1, wherein the gap comprises adjacent and substantially parallel to each of the two gap sections, the two sections separated by a gap 0.7 mm to 1 mm.
15.如权利要求1所述的互容式触控感应装置,其特征在于,于一触碰发生于各该单位感应区域时,各该单位感应区域具有一较均匀的互容感应变化。 15. The mutual capacitance touch sensing apparatus according to claim 1, wherein, in each of the unit occurs in a touch sensitive area, each of the unit sensing area having a relatively uniform change in mutual capacitance sensing.
16. 一种电子系统,包含: 一感应面板,实质地平行于一参考平面; 多个驱动电极; 多个感应电极,这些驱动电极和这些感应电极被设置为构成一矩阵,该矩阵包含多个单位感应区域; 一分析模块,用以根据这些感应电极之输出信号判断是否各单位感应区域被触动,以产生一分析结果;以及一控制模块,用以根据该分析模块提供的分析结果决定该电子系统的一被触动后反应; 其中各单位感应区域与至少一驱动电极和至少一感应电极相关,该至少一驱动电极和该至少一感应电极间存在一间隙,该间隙投影于该参考平面上的长度大于该各单位感应区域的二对角线长度总和。 16. An electronic system, comprising: a sensor panel, substantially parallel to a reference plane; a plurality of drive electrodes; a plurality of sensing electrodes, the driving electrodes and the sensing electrodes are arranged to form a matrix, which comprises a plurality of the unit sensing area; an analysis module configured in accordance with the output signal of the sensing electrode unit determines whether each sensing area is touched to generate an analysis result; and a control module for analyzing the analysis module according to the result of the decision provided by the electronic system a is touched after the reaction; wherein each unit sensing region and at least one driving electrode and at least one sensing electrode correlation, which between a drive electrode and the at least one sensing electrode there is at least a gap, the gap is projected on the reference plane length greater than the sum of the lengths of two diagonal lines of the unit sensing area.
17.如权利要求16所述的电子系统,其特征在于,每一个驱动电极和每一个感应电极各自包含一中心区域及多个延伸区域,这些延伸区域环绕该中心区域设置且分别连接至该中心区域。 17. The electronic system according to claim 16, wherein each drive electrode and each sensing electrode each comprise a central region and a plurality of extension region, which region extends around the central area is provided and connected to the center region.
18.如权利要求16所述的电子系统,其特征在于,每一个驱动电极和每一个感应电极各自包含一连结区域及多个延伸区域,这些延伸区域设置于该连结区域的一侧且分别连接至该连结区域。 18. The electronic system according to claim 16, characterized in that each driving electrode and a sensing electrode of each connected region and each comprising a plurality of extension region, which extension region disposed on a side of the coupling region and connected to the connecting region.
19.如权利要求16所述的电子系统,其特征在于,该间隙投影于该参考平面上的宽度在O. 03微米-O. 3毫米之间。 19. The electronic system according to claim 16, wherein the gap width of the projection on the reference plane between 3 mm O. 03 microns -O..
20.如权利要求16所述的电子系统,其特征在于,该间隙包含相邻且大致相互平行的两间隙区段,该两间隙区段相隔O. 7毫米-1毫米。 20. The electronic system according to claim 16, wherein the gap comprises adjacent and substantially parallel to each of the two gap sections, the two sections separated by a gap O. 7 mm to 1 mm.
21.如权利要求16所述的电子系统,其特征在于,于一触碰发生于各该单位感应区域时,各该单位感应区域具有一较均匀的互容感应变化。 21. The electronic system as claimed in claim 16, wherein, in each of the unit occurs in a touch sensitive area, each of the unit sensing area having a relatively uniform change in mutual capacitance sensing.
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