US Patent 6885294 Motor vehicle display apparatus

An apparatus is disclosed for indicating the state of motion of a subject vehicle to a driver of a following vehicle, by means of an array of lamps (2, 10-21) on the subject vehicle. The apparatus is adapted to indicate the presence of the array of lamps on the subject vehicle when the lamps are not actively indicating the state of motion of the subject vehicle, with the presence of the array realized by, preferably, secondary warning lamps adjacently located with the array and arranged to differentiate the array in terms of its functionality and operational capabilities from existing arrays, as exemplified in FIG. 2.