Force Sensing Using Dual-Layer Cover Glass with Gel Adhesive and Capacitive Sensing

摘要: A touch device including a force sensor disposed between capacitive sensing structures, so both and occur capacitively using drivers in rows columns. dual-layer cover glass, with gel adhesive separating first second CG layers, the layers can determine locations applied force. The include compressible material having Poisson's ratio of less than approximately 0.48, being embedded therein, or layers. Applied is detected detection depression layer. Depression responsive to features smaller optical wavelengths, those are substantially invisible users. Alternatively, may be large enough seen by user, but made through use fluid other element filling spaces features. Such have an index refraction equal to, nearly