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1. 发明授权

US10678380B2 Acoustic touch apparatus and method using touch sensitive Lamb waves 有权
公开(公告)号：US10678380B2
公开(公告)日：2020-06-09
申请号：US15349852
申请日：2016-11-11
申请人： Elo Touch Solutions, Inc.
发明人： David S. Hecht , Daniel H. Scharff , Joel C. Kent , Kyu-Tak Son , Masao Takeuchi
IPC分类号： G06F3/043
摘要： Systems and related methods providing for touch sensors using high sensitivity Lamb waves are disclosed herein. A touch controller may comprise circuitry having operating frequency characteristics, including an operating frequency f and a frequency spread Δf; and circuitry configured to minimize effects of dispersion based upon at least one of selected operating frequency characteristics relative to a frequency dependence of a group velocity of propagating waves and a frequency dependent phase error, wherein the touch controller generates an excitation signal.

2. 发明授权

US10126898B2 Projected capacitive touch sensor with asymmetric bridge pattern 有权
公开(公告)号：US10126898B2
公开(公告)日：2018-11-13
申请号：US15445885
申请日：2017-02-28
申请人： Elo Touch Solutions, Inc.
发明人： Kyu-Tak Son , Joel C. Kent
IPC分类号： G06F3/044 , G06F3/045
摘要： A capacitive touch sensitive device includes a matrix of pads patterned in a first electrically conductive material on a substrate. Horizontally adjacent pads within each even row of the matrix are electrically coupled to one another via channels to form a plurality of horizontally arranged electrodes. Insulators are positioned over respective channels. Conductive links are formed over respective insulators and are configured to electrically couple vertically adjacent pads between odd rows of the matrix to form a plurality of vertically arranged electrodes. The dimensions of the channels and the conductive links are configured such that an RC time-constant (RCtc) of each of the vertically arranged electrodes substantially matches an RCtc of each of the horizontally arranged electrodes.

3. 发明申请

US20140267175A1 Acoustic Touch Apparatus And Methods Using Touch Sensitive Lamb Waves 有权
标题翻译：声触摸设备和使用触感敏感羊羔波的方法
公开(公告)号：US20140267175A1
公开(公告)日：2014-09-18
申请号：US13873007
申请日：2013-04-29
申请人： Elo Touch Solutions, Inc.
发明人： David S. Hecht , Daniel H. Scharff , Joel C. Kent , Kyu-Tak Son , Masao Takeuchi
IPC分类号： G06F3/043
CPC分类号： G06F3/0436
摘要： Systems and related methods providing for touch sensors using high sensitivity Lamb waves are disclosed herein. A touch apparatus may include a substrate having a front surface and a back surface, where the touch region is on the front surface. The touch apparatus may be configured to propagate surface acoustic waves on at least a portion of the back surface and high sensitivity lamb waves, such as near-longitudinal-resonance Lamb waves, in at least a portion of the touch region of the substrate. The touch system may further include circuitry configured to determine a location of a touch on the front surface based on received attenuations in the high sensitivity Lamb waves. Some embodiments may provide for bezel-less touch sensor designs and anti-dispersion techniques that enhance touch sensor reliability.
摘要翻译：本文公开了提供使用高灵敏度兰姆波的触摸传感器的系统和相关方法。触摸装置可以包括具有前表面和后表面的基底，其中触摸区域在前表面上。触摸装置可以被配置为在衬底的至少一部分中在背表面的至少一部分上传播表面声波和高灵敏度兰姆波，例如近纵向共振兰姆波。触摸系统还可以包括被配置为基于在高灵敏度兰姆波中接收到的衰减来确定前表面上的触摸的位置的电路。一些实施例可以提供增强触摸传感器可靠性的无边框触摸传感器设计和防扩散技术。

4. 发明申请

US20140253517A1 ACOUSTIC TOUCH APPARATUS 有权
标题翻译：声音触控装置
公开(公告)号：US20140253517A1
公开(公告)日：2014-09-11
申请号：US14351013
申请日：2012-10-15
申请人： Elo Touch Solutions, Inc.
发明人： Daniel H. Scharff , Joel C. Kent , Damien Berget
IPC分类号： G06F3/043
CPC分类号： G06F3/0436 , G06F3/0418
摘要： An improved acoustic touch apparatus that has a logo or application icon applied on the back surface of a propagating substrate which can be viewed through the substrate and an acoustic element situated adjacent the logo or application icon that can compensate for phase velocity shifts of surface acoustic waves in propagating over the logo or application icon.
摘要翻译：一种改进的声学触摸设备，其具有应用于传播基板的背表面上的标志或应用图标，其可以通过基板观察，以及位于标识或应用图标附近的声学元件，其可以补偿表面声波的相位速度偏移在标志或应用程序图标上传播。

5. 发明授权

US11353995B2 Laser-ablated gradient region of a touchscreen 有权
公开(公告)号：US11353995B2
公开(公告)日：2022-06-07
申请号：US16384523
申请日：2019-04-15
申请人： Elo Touch Solutions, Inc.
发明人： ShiPeng Wang , Joel C. Kent
IPC分类号： G06F3/044 , G06F1/16 , B44C1/22 , B41M5/24
摘要： Embodiments enhance graphic capabilities in projected-capacitive (PCAP) touch sensitive systems, and more specifically to a border component of a PCAP touchscreen. Embodiments include a method and an apparatus for a PCAP touchscreen layered structure. Some embodiments include screen printing a border component on a cover sheet, curing the border component, ablating a pattern on the border component, and screen printing one colored ink onto the pattern on the border component. In some embodiments the border layer is black, and the colored ink is coupled to a cover sheet. The pattern causes the colored ink to appear as a continuous gradient of the colored ink. In some embodiments the border component includes two or more border-layer components. At least one of the border-layer components may include an ablated pattern. Each ablated pattern may be coupled to a different colored ink.

6. 发明授权

US11216140B2 PCAP touchscreens with varying ITO dicing patterns 有权
公开(公告)号：US11216140B2
公开(公告)日：2022-01-04
申请号：US16822719
申请日：2020-03-18
申请人： Elo Touch Solutions, Inc.
发明人： Joel C. Kent
IPC分类号： G06F3/044 , G06F3/041
摘要： Embodiments include a method and system for projected capacitive (PCAP) touchscreen construction with laser ablation. In glass/film/film (GFF) PCAP touchscreens, the films are coated with indium-tin-oxide (ITO), patterned by printing silver ink, and by ablating both the ITO and silver with a laser. A similar process occurs for a glass/glass (2GS) PCAP touchscreen. Embodiments include varying the pattern with which the laser ablates ITO on film within the touch area to improve touchscreen sensitivity. For example, by varying the width of patterns of floating ITO islands such that widths are less than or equal to a plan-view electrode gap between vertical and horizontal electrode pads and larger elsewhere, the touch sensitivity of the PCAP touchscreen may be improved and/or maximum touchscreen size may be increased.

7. 发明授权

US10289250B2 Touchscreen for detecting multiple touches 有权
公开(公告)号：US10289250B2
公开(公告)日：2019-05-14
申请号：US15259432
申请日：2016-09-08
申请人： Elo Touch Solutions, Inc.
发明人： Joel C. Kent , James L. Aroyan , Ting Gao , Daniel H. Scharff
IPC分类号： G06F3/042 , G06F3/043
摘要： A touchscreen system comprises a touch area. At least one transmitter is positioned proximate to outer edges of the touch area for transmitting first beams in a first direction. At least one beam splitter is positioned proximate to the outer edges of the touch area for splitting the first beams into at least second and third beams that travel through the touch area in at least second and third directions, respectively. The at least one beam splitter comprises a plurality of deflecting elements. Receivers are positioned proximate to the outer edges of the touch area for receiving the at least second and third beams.

8. 发明申请

US20170115827A1 Acoustic Touch Apparatus And Method Using Touch Sensitive Lamb Waves 审中-公开
公开(公告)号：US20170115827A1
公开(公告)日：2017-04-27
申请号：US15349852
申请日：2016-11-11
申请人： Elo Touch Solutions, Inc.
发明人： David S. Hecht , Daniel H. Scharff , Joel C. Kent , Kyu-Tak Son , Masao Takeuchi
IPC分类号： G06F3/043
CPC分类号： G06F3/0436
摘要： Systems and related methods providing for touch sensors using high sensitivity Lamb waves are disclosed herein. A touch controller may comprise circuitry having operating frequency characteristics, including an operating frequency f and a frequency spread Δf; and circuitry configured to minimize effects of dispersion based upon at least one of selected operating frequency characteristics relative to a frequency dependence of a group velocity of propagating waves and a frequency dependent phase error, wherein the touch controller generates an excitation signal.

9. 发明授权

US09507464B2 Acoustic touch apparatus and methods using touch sensitive lamb waves 有权
标题翻译：声触摸设备和使用触敏羊羔波的方法
公开(公告)号：US09507464B2
公开(公告)日：2016-11-29
申请号：US13873007
申请日：2013-04-29
申请人： Elo Touch Solutions, Inc.
发明人： David S. Hecht , Daniel H. Scharff , Joel C. Kent , Kyu-Tak Son , Masao Takeuchi
IPC分类号： G06F3/043
CPC分类号： G06F3/0436
摘要： Systems and related methods providing for touch sensors using high sensitivity Lamb waves are disclosed herein. A touch apparatus may include a substrate having a front surface and a back surface, where the touch region is on the front surface. The touch apparatus may be configured to propagate surface acoustic waves on at least a portion of the back surface and high sensitivity lamb waves, such as near-longitudinal-resonance Lamb waves, in at least a portion of the touch region of the substrate. The touch system may further include circuitry configured to determine a location of a touch on the front surface based on received attenuations in the high sensitivity Lamb waves. Some embodiments may provide for bezel-less touch sensor designs and anti-dispersion techniques that enhance touch sensor reliability.
摘要翻译：本文公开了提供使用高灵敏度兰姆波的触摸传感器的系统和相关方法。触摸装置可以包括具有前表面和后表面的基底，其中触摸区域在前表面上。触摸装置可以被配置为在衬底的至少一部分中在背表面的至少一部分上传播表面声波和高灵敏度兰姆波，例如近纵向共振兰姆波。触摸系统还可以包括被配置为基于在高灵敏度兰姆波中接收到的衰减来确定前表面上的触摸的位置的电路。一些实施例可以提供增强触摸传感器可靠性的无边框触摸传感器设计和防扩散技术。

10. 发明授权

US09430100B2 Acoustic touch apparatus with multi-touch capability 有权
公开(公告)号：US09430100B2
公开(公告)日：2016-08-30
申请号：US14949746
申请日：2015-11-23
申请人： Elo Touch Solutions, Inc.
发明人： Kyu-Tak Son , Joel C. Kent
IPC分类号： G06F3/043
CPC分类号： G06F3/0433 , G06F3/043 , G06F2203/04104
摘要： An acoustic touch apparatus that utilizes the transfer of surface acoustic waves from one surface, through the touch substrate, to another surface to enable multi-touch capabilities.

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