Pressure sensitive keys

摘要

Pressure sensitive key techniques are described. In one or more implementations, a device includes at least one pressure sensitive key having a flexible contact layer spaced apart from a sensor substrate by a spacer layer, the flexible contact layer configured to flex responsive to pressure to contact the sensor substrate to initiate an input, for a computing device, associated with the pressure sensitive key. At least one of the flexible contact layer or the sensor substrate are configured to at least partially normalize an output resulting from pressure applied at a first location of the flexible contact layer with an output resulting from pressure applied at a second location of the flexible contact layer that has lesser flexibility than the first location.

主权项

1. A pressure sensitive key comprising:
a sensor substrate having one or more conductors disposed directly underneath a touch input area of the pressure sensitive key; a flexible contact layer covering the pressure sensitive key, the flexible contact layer spaced apart from the sensor substrate, configured to flex in response to an application of pressure to the touch input area of the pressure sensitive key; and a .force sensitive ink disposed between the flexible contact layer and the conductors enabling electrical connections to be made with the conductors via the force sensitive ink, the force sensitive ink arranged under the flexible contact layer such that:
responsive to pressure being applied to a first location within the touch input area of the pressure sensitive key, a first electrical connection is formed between the force sensitive ink and the conductors with a first conductivity; andresponsive to pressure being applied to a second location within the touch input area of the pressure sensitive key, a second electrical connection is formed between the force sensitive ink and the conductors with a second conductivity that is higher than the first conductivity.