A patient contacting assembly comprising a patient contacting member that secures to the surface of a patient by means of an adhesive disposed between the patient contacting member and the patient. The display driver includes a plurality of scan drive cells and a plurality of coincidence detection circuits. The generated simultaneous streams are synchronized by using a unique marker packet. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation. Slight hand pressure is sufficient to operate the switch while simultaneously pushing or pulling the column into the desired position. The circuit may include operational amplifiers and resistors.