Controlling and/or regulating unit for controlling and/or regulating an LED field with n light emitting diodes with outputs at which controlling and/or regulating signals for controlling and/or regulating of controllable switch elements can be read, where the controlling and/or regulating unit can be used - to define activation times and/or deactivation times of impulses from the controlling signals and/or regulating signals, - one and/or several controllable switch elements can be actuated for closing or opening during the emitted impulses, where - a number of k groups can be determined or have been determined, - each LED is allocated to one of the k groups such that each of the k groups contains m j light emitting diodes, where 1 ≤ j ≤ k and ∑ j = 1 k m j = n, - the determined activation times and/or deactivation times of the impulses of each individual group is determined by the controlling and/or regulating unit in such a way that the impulses overlap as little as possible, a luminance of each individual light-emitting diode m j of one of the k groups is controllable by setting a pulse width of the impulse between 0-100% of a clock cycle and by means of the controlling and/or regulating unit - it can be or has been determined which impulses have a pulse width = 100%, where the activation time and the deactivation time for each of these impulses can be set to the beginning or the end of a clock cycle, - it can be or has been determined which impulses have a pulse width of <100%, - impulses with pulse widths <100% can be combined to sum impulses, as long as the sum of the pulse widths <= 100%, characterized in that - by means of the controlling and/or regulating unit the activation time and/or deactivation time of the impulse for each light-emitting diode in each group can be or has been determined in such a way that the sum impulse is in the middle of a clock cycle. - to define activation times and/or deactivation times of impulses from the controlling signals and/or regulating signals, - one and/or several controllable switch elements can be actuated for closing or opening during the emitted impulses, where - a number of k groups can be determined or have been determined, - each LED is allocated to one of the k groups such that each of the k groups contains m j light emitting diodes, where 1 ≤ j ≤ k and ∑ j = 1 k m j = n, - the determined activation times and/or deactivation times of the impulses of each individual group is determined by the controlling and/or regulating unit in such a way that the impulses overlap as little as possible, a luminance of each individual light-emitting diode m j of one of the k groups is controllable by setting a pulse width of the impulse between 0-100% of a clock cycle and by means of the controlling and/or regulating unit - it can be or has been determined which impulses have a pulse width = 100%, where the activation time and the deactivation time for each of these impulses can be set to the beginning or the end of a clock cycle, - it can be or has been determined which impulses have a pulse width of <100%, - impulses with pulse widths <100% can be combined to sum impulses, as long as the sum of the pulse widths <= 100%, characterized in that - by means of the controlling and/or regulating unit the activation time and/or deactivation time of the impulse for each light-emitting diode in each group can be or has been determined in such a way that the sum impulse is in the middle of a clock cycle.