Combined Sensor System

摘要

Combined sensor systems are described. In one or more implementations, an input device includes a sensor substrate having conductors and a flexible contact layer spaced apart from the sensor substrate. The input device includes a combined sensor system having a capacitive sensor assembly to detect a location of an object proximate to a capacitive sensor and a pressure sensitive sensor assembly configured to detect an amount of pressure applied against a pressure sensitive sensor. The pressure sensitive sensors are interspersed with capacitive sensors in a geometric pattern that enables isolation of signals for pressure detection and capacitive sensing. The combined sensor system includes support structures proximate to the pressure sensitive sensors for pre-load control over force sensitive resistors of the flexible contact layer. The combined sensor system also includes adhesive disposed in association with positions of the capacitive sensors to stabilize capacitive sensing under the influence of pressure.

主权项

1. An input device comprising:
a flexible contact layer and a sensor substrate spaced apart from the flexible contact layer; and a combined sensor system comprising:
a plurality of capacitive sensors formed as traces arranged in an array in the sensor substrate;a plurality of pressure sensitive sensors interspersed in the array with the plurality of capacitive sensors, the pressure sensitive sensors comprising force sensitive ink portions in the flexible contact layer configured to contact one or more conductors formed in the sensor substrate to initiate input;supporting structures fabricated proximate to each of the plurality of pressure sensitive sensors to control a pre-load level of the force sensitive ink portions with the one or more conductors; andadhesive disposed in association with positions of the plurality of capacitive sensors to stabilize capacitive sensing when pressure is applied to the combined sensor system.