ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人:
Kang-Ho PARK,Hye Jin KIM,Seongwoo CHO
申请号：
US16213289
公开号：
US20200130013A1
申请日:
2018.12.07
申请国别(地区):
US
年份:
2020
代理人:
摘要：
Disclosed is a vibration actuator device. The vibration actuator device includes a substrate, lower supports disposed on the substrate and spaced apart from each other in a first direction, an actuator disposed on the lower supports to generate a vibration having a first resonant frequency by an external power, a vibration plate disposed on the actuator to vibrate in accordance with the actuator, and a mass portion disposed on the vibration plate to vibrate in accordance with the actuator and the vibration plate. Here, each of the vibration plate and the mass portion has a second resonant frequency that is less than the first resonant frequency.
