Input Device Backlighting

An input device comprising:

• a light guide configured to transmit light;
• a sensor assembly having a plurality of sensors that are configured to detect proximity of an object as a corresponding one or more inputs;
• an outer layer formed as a fabric that has one or more indications of inputs that are configured to be illuminated by the light guide, the outer layer positioned such that the light guide is disposed between the sensor assembly and the outer layer;
• and
• a smoothing layer disposed between the light guide and the outer layer, the smoothing layer secured to the outer layer thereby reducing flexibility of the fabric.

An input device comprising:

• a light source;
• a light guide configured to transmit light emitted by the light source;
• a sensor assembly having a plurality of sensors that are configured to detect proximity of an object as corresponding one or more inputs;
• an outer layer having one or more indications of inputs that are configured to be illuminated by the transmitted light of the light guide, the outer layer positioned such that the light guide is disposed between the sensor assembly and the outer layer;
• and
• a smoothing layer disposed between the light guide and the outer layer, the smoothing layer including a protrusion configured to cause the light guide to align with the light source to transmit the light emitted by the light source.