CASE FOR AN ELECTRONIC DEVICE FOR PROVIDING TOUCH FEEDBACK CAPABLE OF EASILY EXPRESSING FREQUENCY MODULATION EFFECTS IN TOUCH OUTPUT AND A DRIVING METHOD THEREOF

摘要

PURPOSE: A case for an electronic device for providing touch feedback and a driving method thereof are provided to generate touch output according to the control of the electronic device by including a film type actuator.;CONSTITUTION: A second communication interface(210) receives a control signal from an electronic device according to the control of an electronic device. An actuator driving unit(260) generates an electronic signal corresponding to touch pattern data according to the inputted control signal. A film type actuator(270) is connected to the actuator driving unit. The film type actuator generates physical change according to the electronic signal. The film type actuator is an electro active polymer, electro active cellulose, or a shape memory alloy.;COPYRIGHT KIPO 2013;[Reference numerals] (210) Second communication interface; (220) Processor; (230) Pattern storage unit; (240) Data transmission unit; (250) Sampling timer; (260) Actuator driving unit; (270) Film type actuator; (280) Battery;