Kinney & Lange, P.A.
Optical fingerprint/palmprint identification device, touch display panel and display apparatus
The present disclosure provides an optical fingerprint/palmprint identification device, and a touch display panel and a display apparatus which includes the optical fingerprint/palmprint identification device, which enables easy determination of relative positions of ridges and valleys of a fingerprint/palmprint. The optical fingerprint/palmprint identification device includes: a photosensitive sensor configured for acquiring an optical signal indicative of fingerprint/palmprint information, and converting the acquired optical signal into a current; a storage capacitor configured as a separate capacitor in the optical fingerprint/palmprint identification device and electrically connected to the photosensitive sensor so as to receive and store the current from the photosensitive sensor during scanning a fingerprint/palmprint; and a switch transistor electrically connected to the storage capacitor so as to output the current stored in the storage capacitor during reading out a current.
BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. BOE TECHNOLOGY GROUP CO., LTD.
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Yingming Xiaochuan Shengji Liguang Huizhong Haisheng Wei Xiaoliang Changfeng Weijie Lei Xue
Liu Chen Yang Deng Zhu Wang Liu Ding Li Zhao Wang Dong