Abstract: A display device includes a first display segment having an at least partly transparent cover element that has a main plane of extent and a front side and a rear side, and a second display segment having at least one display unit arranged on the rear side of the partly transparent cover element. The partly transparent cover element has a higher transparency in the region of the display unit than in at least one other region. The partly transparent cover element has a transitional region between the region of low transparency and the region of higher transparency. The transitional region has an extent parallel to the main plane of extent of the cover element.

Abstract: A display device includes a first display segment having an at least partly transparent cover element that has a main plane of extent and a front side and a rear side, and a second display segment having at least one display unit arranged on the rear side of the partly transparent cover element. The partly transparent cover element has a higher transparency in the region of the display unit than in at least one other region. The partly transparent cover element has a transitional region between the region of low transparency and the region of higher transparency. The transitional region has an extent parallel to the main plane of extent of the cover element.

Abstract: A method for monitoring the alertness of the driver of a vehicle, includes continuously detecting and evaluating at least one physical parameter of the driver while the vehicle is in motion, and transmitting a periodic audio signal with a predetermined frequency into a vehicle interior within a predetermined time period if the evaluated physical parameter is in a critical range, whereby the critical range indicates an appropriate level of fatigue of the driver. An apparatus for monitoring the alertness includes a monitoring unit with a sensor unit, which detects at least one physical parameter of the driver, and an evaluation unit, which evaluates the detected physical parameter while the vehicle is in motion. The evaluation unit is coupled to an audio device, which transmits a periodic audio signal into a vehicle interior within a predetermined time if the evaluated physical parameter is in a critical range.

Abstract: A method for monitoring the alertness of the driver of a vehicle, includes continuously detecting and evaluating at least one physical parameter of the driver while the vehicle is in motion, and transmitting a periodic audio signal with a predetermined frequency into a vehicle interior within a predetermined time period if the evaluated physical parameter is in a critical range, whereby the critical range indicates an appropriate level of fatigue of the driver. An apparatus for monitoring the alertness includes a monitoring unit with a sensor unit, which detects at least one physical parameter of the driver, and an evaluation unit, which evaluates the detected physical parameter while the vehicle is in motion. The evaluation unit is coupled to an audio device, which transmits a periodic audio signal into a vehicle interior within a predetermined time if the evaluated physical parameter is in a critical range.