SOLENOID SYSTEM USING SPIRAL TRANSPARANT MATERIAL OF CONDUCTIVITY, APPARATUS PROVIDING PASSIVE HAPTIC FEEDBACK USING THE SAME, TOUCHPAD USING THE SAME AND CONTROL METHOD

摘要

PURPOSE: An electromagnetic force generation system using a spiral transparent electrode, a haptic providing device using the same, a touch pad using the same, and a control method thereof are provided to measure the strength of external force with electromagnetic induction effects between an upper side substrate and a lower side substrate. CONSTITUTION: A spiral first transparent electrode(11) is formed in an upper side substrate(10). A spiral second transparent electrode(21) is formed in a lower side substrate(20). A controller(40) controls the power source for the first and second transparent electrodes. According to the control of the power source, the strength of external force is measured with electromagnetic induction effects. Vibration is generated by the repetition of attraction or repulsion between the upper side substrate and the lower side substrate. By the repetition of attraction or repulsion, sound is generated and rigidity against the external force is embodied.