COMPOSITE PANE COMPRISING ELECTRICALLY CONTROLLABLE OPTICAL PROPERTIES AND CONTROL UNIT

A composite pane with electrically controllable optical properties, includes an outer pane and an inner pane joined to one another via a thermoplastic intermediate layer, wherein a functional element with electrically controllable optical properties is integrated into the intermediate layer, wherein a securing element for reversibly securing a control unit is attached to a surface of the outer pane or of the inner pane facing away from the intermediate layer, and wherein a control unit suitable for controlling the optical properties of the functional element is arranged in the securing element.