Reversible Optical Shutter Driver

A circuit for managing current for a reversible thin film stack is provided. The circuit is able to block or substantially restrict leakage current from the film stack when the circuit is in a power-off state. The circuit, in one arrangement, is also able to provide a more steady flow of charge into the film stack, thereby facilitating fast transition, while maintaining sufficient power to other parts of the system. In one arrangement, the circuit is in the form of an integrated circuit, and is positioned in or on an optical disc. The circuit connects to a thin-film optical shutter, which may be set in a clear state that allows the disc to be played, or set in dark state that makes the disc unplayable. The circuit reduces leakage current, allowing the optical shutter to maintain the desired state.