US Patent 10466826 Systems and methods for illuminating a track pad system

Various implementations of a track pad system include an array of force sensors disposed between a base surface and a touch interface plate. The touch interface plate passes touch forces incident on an upper surface thereof to one or more of the force sensors in the array. At least one light source is disposed adjacent the touch interface plate such that the light from the light source is directed through the touch interface plate to illuminate at least a portion of the upper surface of the touch interface plate. One or more icons may be disposed adjacent the illuminated portion of the touch interface plate.