HAPTIC PRODUCING DEVICE USING FRICTIONAL FORCE GENERATED BY ELECTROSTATIC FORCE AND VIBRATION ACCORDING TO RESONANT FREQUENCY, CONTROL METHOD AND RECORDING MEDIUM THEREOF

摘要

The present invention relates to a haptic producing device for producing a haptic feedback in a vertical direction using vibration generated by allocating power of resonant frequency and producing the haptic feedback in a horizontal direction using frictional force generated by electrostatic force. According to an embodiment of the present invention, the haptic producing device comprises: an upper plate receiving touches of a first object; a lower plate arranged apart from the upper plate; a plurality of upper electrodes arranged on the lower surface of the upper plate; a plurality of lower electrodes arranged on the upper surface of the lower plate; a control part producing electric signals using conversion factors for a first area if the first object touches the first area which is at least a part of the whole area of the upper plate; and an actuator outputting the haptic feedback by receiving electric signals produced by the control part. If a first capacitance between at least one of the upper electrodes and at least one of the lower electrodes is converted by the touch, the conversion factor is placed on the first area which can be sensed by using conversion of the first capacitance. If input waveforms are applied on at least one among the upper and lower electrodes, either first or second electrostatic power is formed. The first electrostatic power is formed between the upper and lower electrodes. The second electrostatic power is formed between the upper electrodes and first object. The haptic feedback can be frictional force generated by vibration generated by the first electrostatic power or frictional force generated by the second electrostatic power.;COPYRIGHT KIPO 2014