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    • 8. 发明申请
    • PRESSURE SENSING TOUCH SYSTEMS AND METHODS
    • 压力感应触摸系统及方法
    • US20140210770A1
    • 2014-07-31
    • US14043158
    • 2013-10-01
    • Corning Incorporated
    • Minghan ChenJacques GollierMing-Jun LiPaul Francis MichaloskiWilliam James MillerDaniel Aloysius Nolan
    • G06F3/042G06F3/045G06F3/044
    • G06F3/0421G06F3/044G06F3/045
    • Pressure-sensing touch systems and methods are disclosed for sensing the occurrence of a touch event based on pressure applied at a touch location. The touch system includes a light-source system and a detector system operably adjacent respective input and output edges of a waveguide. Pressure at a touch location on the waveguide gives rise to a touch event causes the waveguide to bend or flex. The waveguide bending causes a change in the optical paths of light traveling by FTIR, causing the light distribution in the output light to change. The changes are detected and are used to determine whether a touch event occurred, as well as the time-evolution of the touch event. The changes in the output light can include polarization changes caused by birefringence induced in the waveguide by the applied pressure applied. Various detector configurations are disclosed for sensing the location and pressure of a touch event.
    • 公开了用于基于在触摸位置处施加的压力来感测触摸事件的发生的压力感测触摸系统和方法。 触摸系统包括可操作地邻近波导的输入和输出边缘的光源系统和检测器系统。 在波导上的触摸位置处的压力导致触摸事件导致波导弯曲或弯曲。 波导弯曲导致由FTIR传播的光的光路的变化,导致输出光中的光分布发生变化。 检测到变化,并用于确定触发事件是否发生,以及触摸事件的时间演变。 输出光的变化可以包括通过所施加的压力在波导管中引起的双折射引起的偏振变化。 公开了用于感测触摸事件的位置和压力​​的各种检测器配置。