Patent ID: 7250596

Claim:
Circuit with an optoelectronic display unit for the discrete display of the setting of a regulating/adjusting unit comprising: at least one detection element configured to detect actuation of the regulating/adjusting unit by means of a body configured to change the setting of the regulating/adjusting unit, wherein the detection element upon actuation is configured to supply an output signal corresponding to the desired change; a plurality of light-emitting diodes disposed substantially side by side in a row and configured to emit optical radiation, the light-emitting diodes being formed as display elements on the display unit; a control device, which, in dependence upon the output signal produced by the detection element, is configured to control at least one of the light-emitting diodes to display the respective setting, as well as the regulating/adjusting unit to change the setting, wherein the control device is configured to control at least one of the light-emitting diodes, the detection elements, as well as the regulating/adjusting unit to follow the movement of the body on the basis of the output signal, which is formed in dependence upon the movement of the body relative to the light-emitting diode that is emitting optical radiation, and that either of at least two receiving elements are provided, which are configured to be sensitive to the optical radiation of the light-emitting diodes, wherein the detection elements detect the optical radiation emitted by at least one light-emitting diode and reflected by the body, or at least one receiving element is provided, which is configured to be sensitive to the optical radiation of the light-emitting diodes, wherein the detection element detects the optical radiation emitted by at least two light-emitting diodes and reflected by the body, wherein in both cases the control device, as soon as the control device because of the output signal advances the display unit in one direction to one of the next light-emitting diodes, is configured to advances in the same direction the receiving element(s) being adjacent to the light-emitting diode emitting the optical radiation.