Abstract: [Problem] To provide an information processing system that can control the display of information such that said information can be displayed more appropriately and more efficiently in accordance with for example the environment in which information is to be displayed and/or the state of the information being displayed. [Solution] This invention provides a control device that has a generation unit that if the state of a display surface as detected by a detection unit satisfies a prescribed condition generates control information for controlling an output unit so as to produce output corresponding to said condition.