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公开(公告)号：US20210165988A1
公开(公告)日：2021-06-03
申请号：US17107746
申请日：2020-11-30
Applicant: LG Display Co., Ltd.
Inventor： Yongkyun CHOI , KiDuk KIM , JiHo CHO , ManHyeop HAN , Junghoon LEE
Abstract: An ultrasonic sensor and a display device and may drive a plurality of sensing pixels disposed in the ultrasonic sensor simultaneously to transmit an ultrasonic wave, may make a first electrode disposed in a sensing pixel to be floated at a timing receiving a reflected signal to store the signal, and then may perform a sensing sequentially. Therefore, as an accurate sensing may be possible while reducing a duration and a number of an ultrasonic wave transmitting, a sensitivity and an accuracy of a sensing may be maintained while improving a driving efficiency of the ultrasonic sensor.
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