CN101071354A - Force and location sensitive display - Google Patents

Force and location sensitive display Download PDF

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CN101071354A
CN101071354A CN 200710089810 CN200710089810A CN101071354A CN 101071354 A CN101071354 A CN 101071354A CN 200710089810 CN200710089810 CN 200710089810 CN 200710089810 A CN200710089810 A CN 200710089810A CN 101071354 A CN101071354 A CN 101071354A
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traces
conductive
element
transparent
display
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CN 200710089810
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CN101071354B (en )
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斯蒂文·P·豪泰灵
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苹果电脑有限公司
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Abstract

A unit to provide both force and location detection includes a first transparent substrate (having first and second sets of conductive traces oriented in a first direction), a second transparent substrate (having a third set of conductive traces oriented in a second direction) and a plurality of deformable members ( e.g ., rubber beads) arranged between the first and second transparent substrates. The first set of conductive traces, in combination with the conductive traces of the second transparent element, provide a capacitance signal representing where a user touches the display element. The second set of conductive traces, in combination with the conductive traces of the second transparent element, provide a capacitance signal representing the amount of force applied to the display element. When used with a display element ( e.g. , a LCD or CRT), an input-output unit capable of both location sensing and force sensing operations is provided.

Description

力和位置感应显示器 Force and position sensitive display

本申请要求于2006年3月30日提交的题为“Force imaging InputDevice and System”的美国专利申请以及2004年5月6日提交的题为“Multipoint Touchscreen”的美国专利申请的优先权,在此通过引用并入这些申请。 This application claims entitled "Force imaging InputDevice and System" and US Patent Application entitled May 6, 2004 filed on "Multipoint Touchscreen" on March 30, 2006 filed a US patent application filed in this these applications are incorporated by reference.

技术领域 FIELD

本发明总体上涉及电子系统输入和输出设备,更具体的,涉及检测用户的触摸和触摸力(输入)的显示装置(输出)。 The present invention relates generally to electronic system input and output devices, and more particularly, to detecting a user's touch and a touch force (input) a display device (output).

背景技术 Background technique

当今存在用于在计算机系统中进行操作的许多类型的输入设备。 There are many types of input devices for performing operations in a computer system today. 这些操作通常包括在显示屏幕上移动光标和/或进行选择。 These operations generally include moving a cursor and / or making a selection on the display screen. 例如,输入设备可包括按钮或键盘、鼠标、跟踪球、触摸板、操纵杆和触摸屏。 For example, the input devices may include buttons or a keyboard, a mouse, trackball, touchpad, a joystick and a touch screen. 具体而言,触摸屏因为其易于操作和操作多功能性以及其越来越低的价格而变得日益普遍。 Specifically, the touch screen because of its ease of operation and operational versatility, and its ever-lower prices become increasingly common. 触摸屏使得用户可以通过简单地经由手指或触摸笔触摸显示屏,来进行选择以及移动光标。 The touch screen allows the user to select and move a cursor by simply touching a finger or a stylus via a touch screen. 通常,触摸屏识别出该触摸以及该触摸在显示屏上的位置,并且计算机系统解析该触摸,随后基于该触摸事件进行动作。 Typically, the touch screen recognizes the touch and position of the touch on the display screen, and the computer system parses the touch, then operates based on the touch event.

触摸屏一般包括触摸面板、控制器和软件驱动器。 The touch panel includes a touch panel, a controller and a software driver. 触摸面板是具有触敏表面的透明面板,并且以使得触敏表面覆盖显示屏的可视区域的方式置于在显示屏的前面。 The touch panel is a clear panel with a touch-sensitive surface, and in a manner that the touch-sensitive surface covers the viewable area of ​​the display screen is placed in front of the display screen. 触摸面板记录触摸事件并且将这些信号发送到控制器。 The touch panel is a touch event records and send these signals to the controller. 控制器处理这些信号并且将数据发送到计算机系统。 The controller processes these signals and sends the data to the computer system. 软件驱动器将触摸事件解析成计算机事件。 Software drivers will touch events into computer events resolved.

有多种类型的触摸屏技术,包括电阻型、电容型、红外线型、表面声波型、电磁型、近场成像型等。 There are several types of touch screen technologies including resistive, capacitive, infrared, surface acoustic wave, electromagnetic, near field imaging type. 这些设备中的每一种都具有优点和缺点,在设计或配置触摸屏时要考虑这些优点和缺点。 Each of these devices has advantages and disadvantages, when designing or configuring a touch screen to consider the advantages and disadvantages. 在电阻型技术中,触摸面板涂覆有薄金属导电和电阻层。 In the art resistive touch panel is coated with a thin metallic electrically conductive and resistive layer. 当触摸该面板时,这些层进行接触,由此闭合一“开关”,这记录触摸事件的位置。 When the touch panel, these layers are in contact, thereby closing a "switch", which records the position of the touch event. 将此信息发送到控制器以进行进一步处理。 This information is sent to the controller for further processing. 在电容型技术中,触摸面板涂覆有对电荷进行存储的材料。 In capacitive technologies, the touch panel is coated with a material to store electric charges. 当触摸该面板时,少量电荷被吸至触点。 When the touch panel, a small amount of charge is drawn to the contact. 与该面板同地协作(co-located)的电路测量电荷,并将此信息发送到控制器以进行处理。 Co-located with the panel (co-located) in the circuit for measuring the charge, and sends this information to the controller for processing.

在表面声波型技术中,例如通过换能器在触摸面板上水平和垂直地发送超声波。 In a surface acoustic wave technology, for example an ultrasonic transmission on the touch panel vertically and horizontally by the transducer. 当触摸该面板时,这些波的声能被吸收。 When the touch panel, the acoustic waves can be absorbed. 位于换能器对面的传感器检测到该变化并且将此信息发送到控制器以进行处理。 A sensor located opposite the transducer detects this change and sends this information to the controller for processing. 在红外线型技术中,例如通过发光二极管在触摸面板上水平和垂直地发送光束。 In the infrared technologies, such as transmit beam horizontally and vertically on the touch panel through the light emitting diode. 当触摸该面板时,从发光二极管发出的某些光束被中断。 When the panel is touched, some of the light beam emitted from the light emitting diode is interrupted. 位于发光二极管对面的光检测器检测到该变化并将此信息发送到控制器以进行处理。 Located opposite to the light emitting diode detector detects the change and sends this information to the controller for processing.

这些技术的一个缺点是它们通常不提供压力或力信息。 One disadvantage of these techniques is that they do not generally provide pressure or force information. 力信息可用于获取对于用户如何操控设备的更为鲁棒的指示。 Force information can be used to obtain a more robust indication of how a user-controlled devices. 即,可将力信息用作另一输入元(dimension),以将指令和控制信号提供给相关电子设备(如,手写板(tablet)计算机系统,个人数字助理或移动手机)。 That is, force information may be used as the other input elements (Dimension), to the command and control signals to the associated electronics (e.g., tablet (Tablet) computer system, a personal digital assistant or a mobile phone). 这些技术的另一问题在于:即使在感应表面上放置有多个物体,它们也只能报告单个点。 Another problem with these techniques is that: even when placed on a sensing surface with a plurality of objects, they can only report a single point. 即,它们无法同时跟踪多个触点。 That is, they can not track multiple contacts simultaneously. 由此,提供以下输入显示装置将是有利的,该输入显示装置能够既检测触摸的位置又检测施加该触摸的力。 Accordingly, the following input display device would be advantageous to be able to detect both input display device and location of a touch force applied to the touch detection.

发明内容 SUMMARY

一种提供力和位置检测的装置包括:第一透明衬底(具有取向为第一方向的第一组和第二组导电线路);第二透明衬底(具有取向为第二方向的第三组导电线路);以及并置于第一透明衬底和第二透明衬底之间的多个可变形组件(如橡胶垫圈(rubber bead))。 A method of providing the force and position detecting means comprises: a first transparent substrate (having a first orientation and second sets of conductive lines in a first direction); a second transparent substrate (having a second oriented direction of the third set of conductive lines); and a plurality of deformable assembly and disposed between the first transparent substrate and the second transparent substrate (such as a rubber gasket (rubber bead)). 第一组导电线路与第二透明元件的导电线路的结合被配置为提供一电容信号,该电容信号表示用户触摸显示元件的位置。 Combined conductive trace first set of conductive lines and the second transparent element are configured to provide a signal capacitor, the capacitance signal indicates the position of the user touches the display element. 第二组导电线路与第二透明元件的导电线路的结合被配置为提供一电容信号,该电容信号表示施加到显示元件的力的量。 Binding a second set of conductive traces and the second transparent conductive trace element is configured to provide a signal capacitor, the capacitance signal indicates the amount of force applied to the display element. 在一个实施例中,第二透明衬底包括第四多个导电线路(取向为第二方向),其中的每对导电线路分隔第三多个导电线路的组。 In one embodiment, the second transparent substrate comprises a fourth plurality of conductive lines (oriented in a second direction), wherein each of the third plurality of conductive traces separated set of conductive lines. 在另一实施例中,第二透明衬底形成封闭体,该封闭体可以填充有液体以减轻可变形元件的视觉问题。 In another embodiment, a second transparent substrate forming an enclosure, the enclosure can be filled with a liquid to reduce visual problems deformable element. 所述力和位置感应装置可以邻接显示元件(如,LCD或CRT),以使得显示装置可以提供位置感应和力感应。 The force and the position sensing device can display abutment elements (e.g., LCD, or CRT), so that the display device may provide a position sensing and force sensing.

附图说明 BRIEF DESCRIPTION

图1以框图的形式示出了根据本发明一个实施例的显示装置。 Figure 1 illustrates in block diagram form a display device according to one embodiment of the present invention.

图2以框图的形式示出了根据本发明一个实施例的力和触摸单元。 Figure 2 illustrates in block diagram form a unit in accordance with one embodiment of the touch force and the embodiment of the present invention.

图3A和3B示出了根据本发明一个实施例的可压缩介质元件(media element)的各种视图。 3A and 3B illustrate various views of a compressible dielectric element (media element) an embodiment of the present invention.

图4示出了根据本发明一个实施例的导电线路的布局。 FIG. 4 shows a layout of the conductive lines in accordance with one embodiment of the present invention.

图5A和5B示出了图4所示结构的放大视图。 5A and 5B shows an enlarged view of the structure shown in FIG.

图6以示意形式示出了根据本发明一个实施例的力和触摸感应显示器。 Figure 6 illustrates in schematic form in accordance with one embodiment of the force and touch-sensitive display of the embodiment of the present invention.

具体实施方式 detailed description

进行以下描述以使得本领域技术人员能够执行并且利用权利要求所述的本发明,并且以下描述是针对下面讨论的具体示例提供的,其各种变型对于本领域技术人员是显而易见的。 The following description is to enable those skilled in the art and can be performed using the present invention according to the claims, the following description and the specific examples discussed are provided below, for which various modifications will be apparent to persons skilled in the art. 因此,所附权利要求并不限于所公开的实施例,而是可以依照与本文所公开的原理和特征一致的最宽范围。 Accordingly, the appended claims are not limited to the disclosed embodiments, but may be in accordance with the principles disclosed herein and the widest scope consistent features.

参照图1,根据本发明一个实施例的力和位置显示装置100包括:新颖的力和触摸单元105、显示元件110和控制器115。 Referring to FIG. 1, the force and position of one embodiment of the present invention display apparatus 100 comprises: a novel and force touch unit 105, a display device 110 and controller 115. 如所示的,单元105并置于显示元件110的前面(从用户120的视角来看)。 As shown, placed in front of the display unit 105 and element 110 (from the perspective of the user 120 view). 例如,单元105可以层压到显示元件110的前面。 For example, unit 105 may be laminated to the front of the display element 110. 所例示的显示元件110包括但不限于各种类型的液晶显示器(“LCD”)、等离子显示器和阴极射线管(“CRT”)。 The illustrated display element 110 including but not limited to various types of liquid crystal display ( "LCD"), a plasma display and a cathode ray tube ( "CRT"). 从功能来看,控制器115与现有技术控制器的类似之处在于其提供信号来驱动单元105,并且将从单元105接收的信号传递到主计算机(未示出),并且/或者处理该信号。 From the functional point of view, the controller 115 is similar to the prior art in that it provides control signals to the driving unit 105, and receives signals from the unit 105 is transmitted to a host computer (not shown), and / or the treatment signal. 这些信号表示用户120触摸显示器100的位置,以及用户120使用多少力来触摸。 The position signal 120 indicating the user touches display 100, user 120 and how many touch force. 在另一实施例中,显示装置100可能包括例如在单元105和显示元件110之间的起偏器元件。 In another embodiment, the display device 100 may include, for example, in the polarizer 105 and the display element 110 between the element unit. 另选的,起偏器可以位于单元105外部以提高观察到的显示元件对比度。 Alternatively, the polarizer 105 may be located outside of the display element to improve contrast of the observed section.

参照图2,图1的新颖的力和触摸单元105包括第一和第二透明衬底(200和205),每个衬底中的一个表面都与导电线路(210和215)的图案邻接,并且这两个衬底被体220隔开。 Referring to FIG. 2, FIG novel force 105 and a touch unit 1 comprises a first and second transparent substrates (200 and 205), one surface of each substrate are conductive lines (210 and 215) adjacent to a pattern, and the two substrates 220 are separated. 体220包括多个可压缩介质元件225,这使得当用户120在显示器100上按压时衬底200和205彼此移得更近。 A compressible medium 220 comprises a plurality of elements 225, 120 which the substrate 200 such that when the user 205 move closer to each other and is pressed on the display 100. 与来自控制器115(参见图1)和导电线路210和215的驱动信号相结合,随着衬底200和205之间的间隔的变化,线路210与215之间的互电容也发生变化。 And from the controller 115 (see FIG. 1) and conductive traces 210 and drive signal 215 is combined with the change of the spacing between the substrates 200 and 205, the mutual capacitance between the lines 210 and 215 also changes. 控制器115检测到的电容信号的变化表示了用户120触摸显示器100的位置以及使用了多少力。 Controller 115 changes the capacitance signal representing the detected position of the user 120 touches the display 100 and how much force is used.

在一个实施例中,透明衬底200和205包括玻璃或者光学透明的塑料,厚度在大约0.3到0.5毫米(“mm”)之间,可以是在液晶显示器中一般使用的类型。 In one embodiment, the transparent substrate 200 and 205 includes an optically transparent glass or plastic, a thickness between about from 0.3 to 0.5 millimeters ( "mm"), it may be of the type generally used in liquid crystal displays. 导电线路210和215包括经构图的氧化铟锡或者某种其它光学透明或半透明导体。 Conductive traces 210 and 215 comprise a patterned indium tin oxide, or some other optically transparent or translucent conductor. 可压缩介质元件225例如可以包括弹性体圆点(elastomer dot)或垫圈形式的聚氨酯或硅胶橡胶。 Element 225 may include a compressible medium such as an elastomer dots (elastomer dot) in the form of a washer or a polyurethane or silicone rubber.

已经发现,可以通过使用上述厚度的、并且以大约2到20微米(“μm”)之间的距离分隔开的多个玻璃衬底,来容易地检测导电线路210和215之间的电容变化。 It has been found, by using the above-described thickness, the plurality of glass substrates and a distance of between about 2 to 20 micrometers ( "μm") spaced apart, the change in capacitance between the conductive lines 210 and 215 to be easily detected . 因此,在一个实施例中,可压缩介质元件225包括跨越从衬底200到衬底205(最小为导电线路210和215的厚度)的间隙的弹性体圆点。 Thus, in one embodiment, the compressible medium comprises a cross member 225 from the substrate 200 to the substrate 205 (with a minimum thickness of the conductive lines 210 and 215) of the gap elastomer dots. 例如,如果衬底200与衬底205隔开10μm,则可压缩介质元件可以如图3A和3B所示地排列和隔开。 For example, if the substrate 200 and the substrate 205 spaced 10 m, the compressible medium may 3A and 3B elements and spaced arrangement shown. 在一个实施例中,可以经由光刻或者丝网工艺将可压缩介质元件应用于衬底200或205。 In one embodiment, via a photolithography process or screen element compressible medium 200 or 205 is applied to the substrate. 在另一实施例中,可将可压缩介质元件应用于衬底200和205两者。 In another embodiment, the compressible medium may be applied to both the substrate 200 and the element 205. 在后一实现中,在第一衬底(如衬底200)上形成的圆点或垫圈可以并置于在第二衬底(如衬底205)上形成的圆点或垫圈之间,从而一起构造出图3所例示的图案。 In the latter implementation, dots or gasket is formed on the first substrate (e.g., substrate 200) and may or gasket placed between dots formed on the second substrate (e.g., substrate 205), such that the configuration illustrated in FIG. 3 with a pattern. 本领域技术人员应当认识到,在不脱离这里描述的概念的情况下,可以采用其它图案。 Those skilled in the art should recognize that, without departing from the concepts described herein, other patterns may be employed.

在一个实施例中,虽然并非必需,但是体220可以是封闭的,以允许流体充满衬底200(和导电线路210)与衬底205(和导电线路215)之间的区域。 In one embodiment, although not required, the body 220 may be closed to allow fluid to the region between the substrate 205 (and the conductive line 215) filled with the substrate 200 (and the conductive line 210). 该配置的一个优点是流体的折射率可以与可压缩介质元件的折射率相匹配。 One advantage of this configuration is the refractive index of the fluid can be matched with the refractive index of the medium is a compressible member. 这样,斯涅耳定律确保可压缩介质元件将呈现为从用户的视线消失,结果,不会使用户的视线从存在于显示元件110上的物体分散开。 Thus, the compressible medium, Snell's law to ensure that the elements appear to disappear from the user's line of sight, the result will not make the user's line of sight from the object is present on the display element 110 is dispersed. 一种例示性光学流体是SantoLight的SL-5267。 An exemplary optical fluid is SantoLight the SL-5267. 本领域普通技术人员将认识到,可以将薄膜反射涂层涂覆于每个接口,以减少光损失并且减轻折射失真。 Those of ordinary skill in the art will recognize that the film may be a reflective coating applied to each interface to minimize light loss and reduce refractive distortion. 例示性防反射涂层可以包含氟化镁、氧化铝等,并且一般可以涂覆大约50到200纳米的厚度。 Exemplary anti-reflection coating may comprise magnesium fluoride, alumina and the like, and may generally be coated with a thickness of about 50 to 200 nm.

参照图4,示出了根据本发明一个实施例的导电线路210和215的布局。 Referring to FIG. 4, the conductive line 210 illustrates one embodiment of the present invention and according to the layout 215. 在所例示的实施例中,“顶部”线路210(即,离用户120最近的线路)包括多行像素板400、驱动框架405和反向驱动线410,其中每个元件都与不具有导电材料415的区域电绝缘。 In the illustrated embodiment, the "top" line 210 (i.e., from line 120 the most recent user) comprises a plurality of rows of pixels plate 400, the drive frame 405 and a reverse driving lines 410, wherein each element having no conductive material 415 is an electrically insulating region. “底部”线路215(即,离用户120最远的线路)包括与力检测操作关联的感应线(420),和与位置检测操作关联的感应线(425)。 "Bottom" line 215 (i.e., farthest from the subscriber line 120) comprises a detector operatively associated with a force sensing line (420), and associated with a position detecting operation sensing line (425). 如所例示的实施例所示,每个力检测线路420具有输出焊盘(430、435和440),而多个位置检测线路425共享公共输出焊盘(445和450)。 Example As illustrated, each of the power detection circuit 420 having output pads (430, 435 and 440), and a plurality of position detecting circuit 425 share a common output pad (445 and 450).

参照图5A和5B,提供了图4的结构的更详细视图。 Referring to FIGS. 5A and 5B, it provides a more detailed view of the structure of FIG. 对于一个实施例,在表1中列举了图5A和图5B中所标识的尺寸'a'到'h'。 For one embodiment, the dimensions listed in Table 1 FIGS. 5A and 5B identified 'a' to 'h'.

表1例示性尺寸 Table 1 illustrates exemplary dimensions

应当认识到,每个元件的精确尺寸是可由显示区域(如装置100)的尺寸和期望分辨率确定的设计结果。 It should be appreciated that the precise dimensions of each element is the result of design by the display area (e.g., device 100) to determine the size and the desired resolution. 还应当认识到,交叠的导电线路210(如线路425)和220(如线路430和435)形成以上述待审专利申请描述的方式操作的电容元件。 It should also be appreciated that the overlapping of the conductive line 210 (e.g., line 425) and 220 (e.g., lines 430 and 435) form a capacitive element in a manner described in the aforementioned copending patent application operation.

应当注意,在图4和5所例示的结构中,线路210基本覆盖了透明衬底200的一个表面,而线路215只最小地覆盖了透明衬底205的一个表面。 It should be noted that in FIGS. 4 and 5 in the structure illustrated, the line 210 substantially covers the surface of a transparent substrate 200, and the line 215 a minimum coverage of the surface of the transparent substrate 205. 从而,用户可能看到由于衬底200的表面与衬底205的表面之间的折射率的差而引起的视觉伪象,其中衬底200的表面基本上被导电线路所覆盖,而衬底205的表面只被最小地覆盖。 Thus, the user may see the visual artifacts due to the difference in refractive index between the surface of the substrate 200 and the substrate 205 caused, wherein the surface of the substrate 200 is substantially covered by a conductive line, while the substrate 205 the surface is covered only minimally. 为了降低这些视觉伪象,已经发现以与导电线路材料的折射率类似的透明或者半透明导电线路材料连续覆盖衬底205的表面将是有利的。 In order to reduce these visual artifacts, it has been found that the refractive index of the material of the conductive trace similar to the surface of a transparent or translucent substrate 205 continuously covers the conductive trace material will be advantageous. 例如,衬底205的包括线路215(如线路420和425)的同一表面可能涂覆有同一导电材料,只要此涂层与线路215电绝缘。 For example, the same surface of the substrate 205 includes a line 215 (e.g., lines 420 and 425) may be coated with the same conductive material as long as this line 215 with the electrically insulating coating. 这可以通过例如在每个线路215的周围提供绝缘层(如415)来实现。 This may be achieved, for example, by providing an insulating layer (e.g., 415) around each line 215. 适于此目的的其它例示性材料包括但不限于氧化铝、氧化钪或者Brewer Science的optiNDEX(聚合物涂层)。 Other exemplary materials suitable for this purpose include, but are not limited to, alumina oxide, scandium oxide or a Brewer Science Optindex (polymer coating).

参照图6,以示意形式示出了力和位置感应显示装置的一部分。 Referring to Figure 6, shown in schematic form a portion of the force and position sensing display device.

根据本发明的一个实施例,在操作期间,驱动电路605顺次激励多个反向驱动线与一驱动框架的每个组合,同时经由感应电路610感应所有力和位置相关线路。 According to one embodiment of the present invention, during operation, the drive circuit 605 sequentially exciting each of a plurality of driving lines and a combination of the reverse drive frame, while the circuit 610 via the inductive position sensing and force all the associated line. 例如,在第一时间段(T1)期间,利用第一极性的脉冲序列对反向驱动线615和620进行驱动,同时利用相反极性的脉冲序列对驱动框架630进行驱动。 For example, during the (T1) a first time period, a first polarity pulse sequence using a reverse driving lines 615 and 620 are driven, while utilizing a pulse sequence to the opposite polarity of the drive frame 630 is driven. 在进行此操作的同时,感应电路610“读取”或者感应显示器的所有列上的其每个输入。 In parallel with this operation, sensing circuit 610 "reads" on each input-sensitive display, or all columns. 在第二时间段(T2)期间,利用第一极性的脉冲序列对反向驱动线620和625进行驱动,同时利用相反极性的脉冲序列对驱动框架635进行驱动。 Period (T2) a second period, a first polarity pulse sequence using a reverse driving lines 620 and 625 are driven at the same time using the opposite polarity of the pulse sequence for driving the drive frame 635. 在时间段T2期间,感应电路610再次读取其每个输入。 During the period T2, the sensing circuit 610 reads each of its inputs again. 重复此处理,直到显示单元中的所有行都被驱动,此后,重复此处理。 This process is repeated until all the rows unit is driven, thereafter, this process is repeated. 如所述的,每个像素产生与位置测量有关的一个信号(如,通过公共感应焊盘445),以及与力测量有关的两个信号(如,来自焊盘430和435)。 As described, each pixel generates a signal associated with the position measurement (e.g., through a common sensing pad 445), and two signal related to the force measurement (e.g., from pads 430 and 435). 在一个实施例中,使用测量力信号的平均值作为“所述”力信号。 In one embodiment, using the average of the measured force signal as "the" force signal. 在另一实施例中,使用这两个信号的最大值(或最小值)。 In another embodiment, a maximum (or minimum) of these two signals.

在一个实施例中,每个脉冲序列包括12个脉冲(0到18伏),具有50%的占空比,以及在大约100和300千赫兹(“KHz”)之间的频率。 In one embodiment, each pulse train comprising pulses 12 (0 to 18 volts), having a 50% duty cycle, and a frequency of between about 100 and 300 kHz ( "KHz") of the. 在图6的实施例中,感应电路610被示为同时读取所有列输入。 In the embodiment of FIG. 6, the sensing circuit 610 is shown to simultaneously read all input columns. 然而,应当认识到,这并非必需的。 However, it should be recognized that this is not necessary. 例如,感应电容信号中的行变化的操作可以被复用,以使得对于每一行(如,反向驱动线615和620以及驱动框架640),在第一时间段期间感应第一部分列,并且在第二时间段期间感应第二部分列等等,直到所有列被感应。 For example, the row change operation of the capacitance sensing signal may be multiplexed, such that for each row (for example, a reverse drive lines 615 and 620 and the driving frame 640), during a first time period a first sensing part of the column, and during a second induction period a second part of the column and so on until all columns are sensed. 在完成此处理之后,可以激励下一组反向驱动线和驱动框架。 After completion of this treatment, the next set of reverse excitation drive and the drive frame.

根据本发明,在每次扫描操作期间,图4、5和6的例示性结构对于每个像素提供两个值(如上所述)。 According to the invention, during each scanning operation, an exemplary structure of FIG. 4, 5 and 6 provide two values ​​(as described above) for each pixel. 第一个值表示由于用户触摸显示装置的位置而引起的电容。 The first value represents the capacitance due to the location of the user touches the display apparatus caused. 该值应当尽可能独立于力。 This value should be independent of force as possible. 第二个值表示施加到显示装置的力。 The second value represents a force is applied to the display device. 该值应当尽可能独立于施加力的位置。 This value should be independent of the position of the applied force as possible. 驱动框架405、反向驱动线410和感应线420和425的排列被布置为提供此独立性。 405, reverse drive and sense lines arranged line 410 of the drive frame 420 and 425 are arranged to provide this independence. 例如,应当认识到,驱动框架(如405)和力输出线(如,导电路径420之一)之间的互电容直接与它们的交叠面积(如,30μm×4.5mm)成正比,并且与板间隔(如,在没有力时是10μm,在全力时是7μm)成反比。 For example, the mutual capacitance between should be appreciated that the drive frame (e.g., 405) and force output line (e.g., one of the conductive path 420) is directly connected to their overlapping area (e.g., 30μm × 4.5mm) proportional, and with plate spacing (e.g., when no force is 10 m, is at full 7μm) is inversely proportional. 对于每个反向驱动线也是如此。 The same is true for each of the reverse drive line. 然而,因为利用相反极性的信号对驱动框架和反向驱动线进行驱动,所以它们倾向于相互中和(即,不同的极性倾向于中和在感应路径与驱动框架之间以及在感应路径与反向驱动框架之间转移的电荷)。 However, since the polarity opposite to the driving signal and the frame reverse drive lines are driven, and they tend to neutralize each other (i.e., different polarities and tend inductive path between the drive frame and the inductive path a charge transfer between the frame and the reverse drive). 由此,在所例示的实施例中,反向驱动线用于消除由于位置感应路径425与驱动框架405的“腿”交叠而引起的某些电荷转移。 Thus, in the illustrated embodiment, a reverse drive line for removing some of the charge transfer path 425 due to the position sensor 405 and the drive frame "legs" caused by overlapping. 由此,使用反向驱动线确保位置和力输出信号是基本独立的。 Thus, using the reverse drive position and to ensure that the line force is substantially independent of the output signal.

在不脱离所附权利要求的范围的情况下,可以在材料、部件、电路元件以及所例示操作方法的细节方面进行各种变化。 Without departing from the scope of the appended claims, that various changes in the details may be made materials, components, circuit elements and a method of operation of the illustrated aspects.

Claims (51)

  1. 1.一种力和触摸感应部件,包括:第一透明层;第二透明层;第一导电线路,与第一透明层的第一表面邻接;第二导电线路,与第二透明层的第二表面邻接;以及可变形组件,插入在第一透明组件与第二透明组件之间,其中第一导电线路和第二导电线路被配置为生成对施加到第一透明层的力进行指示的第一信号,以及对第一透明层上的施加力的位置进行指示的第二信号。 A force and a touch sensing means, comprising: a first transparent layer; a second transparent layer; a first conductive trace, and the first transparent layer adjacent to a first surface; a second conductive trace section, and the second transparent layer abutting a second surface; and a deformable component, interposed between the first component and the second transparent transparent member, wherein the first conductive trace and the second conductive trace is configured to generate a force on the first transparent layer is applied to the instruction a signal, and a second signal indicative of the position of the force exerted on the first transparent layer.
  2. 2.根据权利要求1所述的部件,其中第一透明层和第二透明层包括玻璃。 2. The member according to claim 1, wherein the first transparent layer and the second layer comprises a transparent glass.
  3. 3.根据权利要求1所述的部件,其中第一导电线路取向为第一方向,第二导电线路取向为第二方向。 3. A member according to claim 1, wherein the first conductive lines oriented in a first direction, a second conductive traces oriented in a second direction.
  4. 4.根据权利要求3所述的部件,其中第一方向和第二方向基本垂直。 4. A member according to claim 3, wherein the first and second directions are substantially perpendicular.
  5. 5.根据权利要求1所述的部件,其中第二导电线路包括:第一组线路,专用于检测对施加到第一透明层的力进行指示的信号;以及第二组导电线路,专用于检测对施加力的位置进行指示的信号。 The member according to claim 1, wherein the second conductive trace comprises: a first set of lines dedicated to detection of the signal power of the first transparent layer is applied to the instruction; and a second set of conductive lines, designed to detect a signal indicative of a position of the applied force.
  6. 6.根据权利要求1所述的部件,其中第一透明层和第二透明层包括密封体。 6. The member according to claim 1, wherein the first transparent layer and the second layer comprises a transparent sealing member.
  7. 7.根据权利要求6所述的部件,其中密封体被基本充满具有一折射率的流体。 7. A member according to claim 6, wherein the sealing body is substantially filled with a fluid having a refractive index.
  8. 8.根据权利要求7所述的部件,其中流体的折射率基本等于可变形部件的折射率。 8. A member according to claim 7, wherein the fluid is substantially equal to the refractive index of the refractive index of the deformable member.
  9. 9.根据权利要求1所述的部件,进一步包括起偏器元件,其与第一透明层和第二透明层的至少一个表面邻接,其中所述至少一个表面与第一多个导电线路或第二多个导电线路所邻接的表面相对。 9. A member according to claim 1, further comprising a polarizer element, with the first transparent layer and the second transparent layer adjacent to at least one surface, wherein the at least one surface of the first or the second plurality of conductive lines the plurality of second conductive lines adjacent to opposite surfaces.
  10. 10.根据权利要求9所述的部件,其中起偏器元件包括光学涂层。 10. A member according to claim 9, wherein the polarizer element comprises an optical coating.
  11. 11.一种力和位置感应触摸部件,包括:第一透明层;第二透明层;第一多个导电线路,取向为第一方向并且基本上与第一透明层的第一表面相邻;第二多个导电线路,取向为第二方向并且基本上与第二透明层的第一表面相邻;第三多个导电线路,取向为第二方向,并且基本上与第二透明层的第一表面相邻,并且与第二多个导电线路绝缘,所述第三多个导电线路中的一个或更多个被布置在第二多个导电线路中的相继导电线路之间;以及多个可变形组件,并置于第一透明层的第一表面与第二透明层的第一表面之间,其中,第一多个导电线路和第二多个导电线路适于提供对于施加到第一透明层的第一表面的力的指示,并且第一多个导电线路和第三多个导电线路适于提供对于第一透明层上的施加力的位置的指示。 A force and position sensing touch member, comprising: a first transparent layer; a second transparent layer; a first plurality of conductive lines oriented in a first direction and substantially adjacent to the first surface of the first transparent layer; a second plurality of conductive traces oriented in a second direction and substantially adjacent to the first surface of the second transparent layer; a third plurality of conductive traces oriented in a second direction, the first and second substantially transparent layer a surface adjacent to and insulated from the second plurality of conductive lines, between a plurality of said third conductive lines are arranged in one or more of the second plurality of conductive lines have a conductive line; and a plurality of deformable assembly disposed between the first surface and the first surface of the first transparent layer and the second transparent layer, wherein the first plurality of conductive traces and the second plurality of conductive lines is adapted to provide for applying the first the force of the first surface of the transparent layer indication and a first plurality of conductive lines and a third plurality of conductive lines is adapted to provide an indication of the position of the force exerted on the first transparent layer.
  12. 12.根据权利要求11所述的力和位置感应触摸部件,其中所述第一多个导电线路中的每一个包括适于接收驱动信号的第一部分,和与第一部分电绝缘的多个第二部分。 12. The position sensing and force touch member according to claim 11, wherein each of said first plurality of conductive lines comprises a first portion adapted to receive driving signals, and a first portion of the plurality of second electrically insulated section.
  13. 13.根据权利要求12所述的力和位置感应触摸部件,其中驱动信号包括有限时间段的脉冲序列。 13. The position sensing and force touch member according to claim 12, wherein the drive signal includes a pulse sequence of finite period of time.
  14. 14.根据权利要求12所述的力和位置感应触摸部件,其中第一多个导电线路中的每一个适于在所述第一多个导电线路中的其它导电线路不接收驱动信号的时间段期间接收驱动信号。 14. The position sensing and force touch member according to claim 12, wherein the first plurality of conductive lines adapted to each other conductive lines in the first plurality of conductive lines do not receive the driving signal period receive the drive signal period.
  15. 15.根据权利要求11所述的力和位置感应触摸部件,进一步包括第四多个导电线路,取向为第一方向并且基本上与第一透明层的第二表面相邻,其中所述第四多个导电线路中的每一个被布置在第一多个导电线路中的相继导电线路之间。 15. The fourth plurality of conductive traces oriented in a first direction and substantially adjacent to the second surface of the first transparent layer and the position of the force sensing touch member 11, further including the claims, wherein said fourth each of which is arranged in a first plurality of conductive lines between successive conductive line of the plurality of conductive lines.
  16. 16.根据权利要求15所述的力和位置感应触摸部件,其中第一多个导电线路中的每一个适于接收具有第一极性的第一驱动信号,并且第四多个导电线路中的每一个适于接收具有第二极性的第二驱动信号。 16. The position sensing and force touch member according to claim 15, wherein the first plurality of conductive lines each having a first polarity is adapted to receive a first driving signal and the fourth plurality of conductive lines each adapted to receive a second driving signal having a second polarity.
  17. 17.根据权利要求16所述的力和位置感应触摸部件,其中所述第一多个导电线路中的每一个适于在所述第一多个导电线路中的其它导电线路不接收第一驱动信号的时间段期间接收第一驱动信号。 17. The position sensing and force touch member according to claim 16, wherein said first plurality of conductive lines adapted to each other conductive lines in the first plurality of conductive lines not receiving the first driving receiving a first drive signal during a period of the signal.
  18. 18.根据权利要求17所述的力和位置感应触摸部件,其中第四多个导电线路中的每一对适于在只有第一多个导电线路中的布置在所述一对之间的所述一个导电线路接收第一驱动信号时才接收第二驱动信号。 18. The position sensing and force touch member according to claim 17, wherein each of the fourth plurality of conductive lines is adapted to be disposed in a first plurality of conductive lines between the pair of the receiving a second driving signal when receiving the first driving signal is a said conductive trace.
  19. 19.根据权利要求11所述的力和位置感应触摸部件,其中可变形组件包括橡胶。 19. The position sensing and force touch member according to claim 11, wherein the assembly comprises a deformable rubber.
  20. 20.根据权利要求11所述的力和位置感应触摸部件,其中橡胶包括室温硫化橡胶。 20. The position sensing and force touch member according to claim 11, wherein the rubber comprises a room temperature vulcanizing rubber.
  21. 21.根据权利要求11所述的力和位置感应触摸部件,其中可变形组件包括硅胶。 21. The position sensing and force touch member according to claim 11, wherein the deformable assembly comprises silica.
  22. 22.根据权利要求11所述的力和位置感应触摸部件,其中可变形组件包括光固化弹性体。 22. The position sensing and force touch member according to claim 11, wherein the deformable assembly may include a light curable elastomer.
  23. 23.根据权利要求11所述的力和位置感应触摸部件,其中第一透明层和第二透明层形成封闭体。 23. The position sensing and force touch member according to claim 11, wherein the first transparent layer and the second transparent layer forming an enclosure.
  24. 24.根据权利要求23所述的力和位置感应触摸部件,其中第一透明层的第一表面和第二透明层的第一表面在封闭体的内部。 24. The position sensing and force touch member according to claim 23, wherein the first surface of the first inner surface of the first transparent layer and the transparent layer in a second enclosure.
  25. 25.根据权利要求23所述的力和位置感应触摸部件,进一步包括充满封闭体的流体。 25. The position sensing and force touch member according to claim 23, further comprising a fluid filled enclosure.
  26. 26.根据权利要求25所述的力和位置感应触摸部件,其中流体具有与可变形组件的折射率大致相等的折射率。 26. The position sensing and force touch member according to claim 25, wherein the fluid has a refractive index substantially equal to the deformable refractive index components.
  27. 27.根据权利要求25所述的力和位置感应触摸部件,其中流体包括折射率与可变形组件的相似的流体。 27. The position sensing and force touch member according to claim 25, wherein the fluid comprises a fluid similar to the refractive index of the deformable assembly.
  28. 28.根据权利要求11所述的力和位置感应触摸部件,进一步包括基本覆盖了第一透明层的第一表面的介电材料,所述介电材料具有与第一多个导电线路的折射率大致相等的折射率。 28. The force sensing touch and position of the member 11, further comprising a dielectric material substantially covering a first surface of the first transparent layer, the dielectric material having a first refractive index and a plurality of conductive traces claim a refractive index substantially equal.
  29. 29.根据权利要求28所述的力和位置感应触摸部件,其中第一多个导电线路包括氧化铟锡,并且介电材料包括氧化铝。 29. The position sensing and force touch member according to claim 28, wherein the first plurality of conductive lines comprises indium tin oxide, and the dielectric material comprises alumina.
  30. 30.根据权利要求11所述的力和位置感应触摸部件,进一步包括基本上覆盖了第二透明层的第一表面的介电材料,所述介电材料具有与第二多个导电线路和第三多个导电线路的折射率大致相等的折射率。 30. The position sensing and force touch member 11, further comprising substantially covering the dielectric material of the first surface of the second transparent layer, the dielectric material having a second plurality of conductive lines and claims a plurality of third conductive lines refractive index substantially equal to the refractive index.
  31. 31.根据权利要求30所述的力和位置感应触摸部件,其中第二多个导电线路和第三多个导电线路包括氧化铟锡,并且介电材料包括氧化铝。 31. The position sensing and force touch member according to claim 30, wherein the second plurality of conductive lines and a third plurality of conductive lines comprises indium tin oxide, and the dielectric material comprises alumina.
  32. 32.根据权利要求11所述的力和位置感应触摸部件,其中第一透明层和第二透明层包括玻璃。 32. The position sensing and force touch member according to claim 11, wherein the first transparent layer and the second layer comprises a transparent glass.
  33. 33.一种显示装置,包括:显示元件;以及与显示元件的表面粘合的根据权利要求11的力和位置感应触摸部件。 33. A display device comprising: a display element; and a position and a force sensing touch member according to claim adhesive surface of the display element of claim 11.
  34. 34.根据权利要求33所述的显示装置,其中显示元件包括液晶显示器。 34. The display device according to claim 33, wherein the display element comprises a liquid crystal display.
  35. 35.根据权利要求33所述的显示装置,其中显示元件包括阴极射线管。 35. The display device according to claim 33, wherein the display device comprises a cathode ray tube.
  36. 36.根据权利要求33所述的显示装置,其中显示元件包括等离子显示器。 36. The display device according to claim 33, wherein the display element comprises a plasma display.
  37. 37.根据权利要求33所述的显示装置,进一步包括并置于显示元件与力和位置感应触摸部件之间的起偏器元件。 37. The display device according to claim 33, further comprising a polarizer element and disposed between the display element and the touch position sensing and force member.
  38. 38.一种力和位置感应部件,包括:第一透明衬底,具有取向为第一方向的分离的第一多个导电路径和第二多个导电路径;第二透明衬底,具有取向为第二方向的第三多个导电路径;以及可变形元件,并置于第一透明衬底与第二透明衬底之间并且分离第一透明衬底和第二透明衬底,其中第一多个导电路径和第三多个导电路径被配置为生成表示用户在显示装置上触摸的位置的电容信号,并且第二多个导电路径和第三多个导电路径被配置为生成表示用户施加到显示装置的力的电容信号。 38. A force and position sensing member, comprising: a first transparent substrate having a first plurality of conductive paths and a second plurality of conductive paths separated into a first alignment direction; a second transparent substrate having oriented the third plurality of conductive path of the second direction; and a deformable member disposed between the first and the second transparent substrate and the transparent substrate and separating the first transparent substrate and the second transparent substrate, wherein the first plurality a third plurality of conductive paths and the conductive paths are configured to generate a signal indicating that the user at the position of the capacitive touch on a display device, and a second plurality of conductive paths, and the third plurality of conductive paths are configured to generate a user is applied to the display showing capacitance signal of the force device.
  39. 39.根据权利要求38所述的力和位置感应部件,进一步包括与第一透明衬底邻接的显示元件。 39. A force and position sensing member according to claim 38, further comprising a display element adjacent to the first transparent substrate.
  40. 40.根据权利要求39所述的力和位置感应部件,其中显示元件包括液晶显示元件。 40. A force and position sensing member according to claim 39, wherein the display element comprises a liquid crystal display element.
  41. 41.根据权利要求38所述的力和位置感应部件,其中第一多个导电路径包括多个电绝缘路径,在这些电绝缘路径之间有一个或更多个第二多个导电路径。 41. The force and position sensing member according to claim 38, wherein the first plurality of conductive paths comprises a plurality of electrically insulating paths, the paths between the electrically insulating one or more of the second plurality of conductive paths.
  42. 42.根据权利要求41所述的力和位置感应部件,其中第一多个导电路径中的每一个都相互电绝缘,并且第一多个导电路径中的每一个之间的所有所述一个或更多个第二多个导电路径都电耦合。 42. The force and position sensing member according to claim 41, wherein the first plurality of conductive paths are each electrically insulated from each other, and all the one between each of the first plurality of conductive paths or more of the second plurality of conductive paths are electrically coupled.
  43. 43.根据权利要求38所述的力和位置感应部件,其中第二透明膜片进一步包括第四多个导电路径,取向为第二方向并且与第三多个导电路径电绝缘。 43. The force and position sensing member according to claim 38, wherein the second transparent conductive film further comprises a fourth plurality of paths, and the orientation of the second direction and the third plurality of conductive paths electrically insulated.
  44. 44.根据权利要求43所述的力和位置感应部件,其中第四多个导电线路中的一个将第三多个导电线路彼此分隔开。 44. The force and position sensing member according to claim 43, wherein the fourth plurality of conductive traces in a third plurality of conductive traces are spaced apart from each other.
  45. 45.根据权利要求46所述的力和位置感应部件,其中第三多个导电线路被配置为由具有第一极性的电压信号所驱动,并且第四多个导电线路被配置为由具有第二极性的电压信号所驱动。 45. The force and position sensing member of claim 46, wherein the third plurality of conductive lines having a first polarity is configured to be driven by a voltage signal and the fourth plurality of conductive lines are configured by a first two polarity voltage drive signals.
  46. 46.根据权利要求38所述的力和位置感应部件,其中第一多个导电路径、第二多个导电路径和第三多个导电路径包括氧化铟锡。 46. ​​The force and position sensing member according to claim 38, wherein the first plurality of conductive paths, a second plurality of conductive paths, and the third plurality of conductive paths comprises indium tin oxide.
  47. 47.根据权利要求38所述的力和位置感应部件,其中可变形元件包括橡胶。 47. A force and position sensing member according to claim 38, wherein the deformable member comprises rubber.
  48. 48.根据权利要求39所述的力和位置感应部件,进一步包括并置于显示元件与第一透明衬底之间的起偏器。 48. The force and position sensing member of claim 39, further comprising a polarizer and disposed between the display element and the first transparent substrate as claimed in claim.
  49. 49.根据权利要求38所述的力和位置感应部件,其中第一透明衬底和第二透明衬底包括封闭体。 49. The force and position sensing member according to claim 38, wherein the first substrate and the second transparent substrate comprises a transparent enclosure.
  50. 50.根据权利要求49所述的力和位置感应部件,进一步包括基本上充满封闭体的液体。 50. A force and position sensing member according to claim 49, further comprising a substantially fluid-filled enclosure.
  51. 51.根据权利要求50所述的力和位置感应部件,其中液体具有基本上等于可变型组件的折射率的折射率。 51. The force and position sensing member according to claim 50, wherein the liquid has a refractive index substantially equal to the refractive index of the variable component.
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