An electronic ballast for driving a gas discharge lamp comprises an inverter circuit, a resonant tank circuit, and a control circuit operable to determine an approximation of a resonant frequency of the resonant tank circuit and to control the inverter circuit in response to the approximation of the resonant frequency. A first transfer transistor is arranged to pass a transfer signal when turned on by a column selection signal. An electrically conductive contact element is provided that is connected with the metal part in an electrically conductive manner and is attached to the plastic layer. The second settings specify one or more nondestructive second transformations of the second image data that create a second appearance of the second image.