公开(公告)号：US20240016061A1

公开(公告)日：2024-01-11

申请号：US18220295

申请日：2023-07-11

申请人： INDUSTRY-ACADEMIC COOPERATION FOUNDATION, DANKOOK UNIVERSITY

发明人： Ji-Hyeon Song ,  Yujun Song

IPC分类号： H10N30/30 ,  H10N30/045 ,  H10N30/072 ,  H10N30/088 ,  G06F3/041

CPC分类号： H10N30/30 ,  H10N30/045 ,  H10N30/072 ,  H10N30/088 ,  G06F3/0414 ,  G06F3/04164

摘要： Disclosed herein are a piezoelectric element, a method of manufacturing the piezoelectric element, a touchpad including the piezoelectric element, and a method of operating the touchpad, wherein the piezoelectric element has a shape of an N-hedron and includes N polygonal unit piezoelectric films forming N faces of the N-hedron, and the touchpad includes: a first piezoelectric element having a shape of an N-hedron; a pad body having a first installation groove detachably supporting the first piezoelectric element; and a signal processer receiving and processing a first signal generated by the first piezoelectric element in response to a first external force, wherein N unit signals are generated by N unit piezoelectric films forming N faces of the first piezoelectric element in response to one external force.