HAPTIC DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME

摘要

A display device according to an embodiment of the present invention is provided. The display device comprises: a display part for displaying an image; a first actuator; a second actuator; and an actuator driving part. The second actuator is arranged adjacently to the first actuator. The actuator driving part is configured to control the first actuator and the second actuator. The actuator driving part is configured to apply a first voltage to the first actuator to have a vibration waveform with a first frequency and to apply a second voltage to the second actuator to have a vibration waveform with a second frequency different from the first frequency. A frequency difference between the first frequency and the second frequency is within a frequency range that can be detected by haptic sensation. Accordingly, a separate large-sized boosting circuit may not be required and power consumption is reduced as the driving voltage of the actuators is reduced.