The Touchscreen With Proximity Recognition

The touchscreen features a proximity recognition system when "Composition Media" or higher is installed. When the sensor detects a hand approaching screen, then the virtual operating buttons in the display become larger, making a selection easier. If no button is pressed, then the display quickly reverts to a normal virtual button size.

Design 

A black shiny trim strip below the touchscreen has four infrared sensors. They are integrated into the J685 Front Information Display Control Head. The sensors emit a weak infrared beam across a detection area with a radius of about 15 cm.

The detection area functions for both for the driver and for the passenger.

Function 

When a hand moves into the detection area of the sensor strip, then the beams emitted by the sensors are reflected by the hand and are sent back to the sensor strip. These reflected beams are picked up by the infrared sensors.

The sensor strip then sends a signal for the virtual buttons on the infotainment display area to be enlarged.