Invention Grant
US08803842B2 Touch panel apparatus and method for detecting distance between touch input points on touch panel
有权
用于检测触摸面板上触摸输入点之间的距离的触摸屏设备和方法
- Patent Title: Touch panel apparatus and method for detecting distance between touch input points on touch panel
- Patent Title (中): 用于检测触摸面板上触摸输入点之间的距离的触摸屏设备和方法
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Application No.: US13511027Application Date: 2010-11-26
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Publication No.: US08803842B2Publication Date: 2014-08-12
- Inventor: Junichi Wakasugi , Kaichin Li
- Applicant: Junichi Wakasugi , Kaichin Li
- Applicant Address: JP Tokyo
- Assignee: Asahi Kasei Microdevices Corporation
- Current Assignee: Asahi Kasei Microdevices Corporation
- Current Assignee Address: JP Tokyo
- Agency: Morgan, Lewis & Bockius LLP
- Priority: JP2009-269081 20091126; JP2009-283023 20091214
- International Application: PCT/JP2010/006910 WO 20101126
- International Announcement: WO2011/065011 WO 20110603
- Main IPC: G06F3/045
- IPC: G06F3/045
Abstract:
There are provided a touch panel apparatus and a method for detecting a distance between touch input points of a touch panel, with which it is possible to detect the distance between two points with accuracy, when two points are touched on the touch panel. Whether or not two points are touched on the touch panel TP is determined based upon a resistance value between terminals opposing each other. When it is determined that two points are touched, the distances between touched two points XDual and YDual are detected. In this situation, the distances between touched two points XDual and YDual are detected based upon the resistance value of the opposing terminals and a pressing force (contact resistance value) of the touch input points.
Public/Granted literature
- US20120262417A1 TOUCH PANEL APPARATUS AND METHOD FOR DETECTING DISTANCE BETWEEN TOUCH INPUT POINTS ON TOUCH PANEL Public/Granted day:2012-10-18
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