- 专利标题: Fingerprint identification device, touch display panel, and method for driving fingerprint identification device
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申请号: US15751848申请日: 2017-07-17
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公开(公告)号: US10929633B2公开(公告)日: 2021-02-23
- 发明人: Shengji Yang , Xue Dong , Hailin Xue , Xiaochuan Chen , Haisheng Wang , Yingming Liu , Lei Wang , Xiaoliang Ding , Rui Xu , Pengcheng Lu
- 申请人: BOE TECHNOLOGY GROUP CO., LTD.
- 申请人地址: CN Beijing
- 专利权人: BOE TECHNOLOGY GROUP CO., LTD.
- 当前专利权人: BOE TECHNOLOGY GROUP CO., LTD.
- 当前专利权人地址: CN Beijing
- 代理机构: Kinney & Lange, P.A.
- 优先权: CN201610830380.0 20160918
- 国际申请: PCT/CN2017/093157 WO 20170717
- 国际公布: WO2018/049909 WO 20180322
- 主分类号: G06K9/00
- IPC分类号: G06K9/00 ; G06F3/041 ; H01L51/56
摘要:
Embodiments of the disclosure relate to a fingerprint identification device, a touch display panel, and a method for driving a fingerprint identification device. The fingerprint identification device for identification of a fingerprint of a finger, includes: at least one resonant chamber; and at least one ultrasonic generating and detecting device provided opposite to the at least one resonant chamber; each of the at least one ultrasonic generating and detecting device is configured to generate initial ultrasonic signals having a frequency which is identical to an initial intrinsic frequency of the resonant chamber in a condition of being untouched by the finger, and each of the at least one ultrasonic generating and detecting device is also configured to convert the ultrasonic signals reflected by ridges and valleys of the finger into electrical signals, and to determine information on pattern of the finger depending on the electrical signals.
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