Hefei Visionox Technology Co., Ltd.

Shuang Cui

Rubo Xing

Qingrong Ren

Junfeng Li

Gang Wang

Dongsheng Li

Dandan Sun

Rui Guo

Feng Qi

Haofeng Zhang

Shiwen Hu

A photosensitive circuit structure and an optical device, where the photosensitive circuit structure includes a photosensitive unit, a signal amplification unit and a control unit; the photosensitive unit includes a photodiode and a reset transistor, the signal amplification unit includes an amplification transistor, and the control unit includes a control transistor; an input terminal, an output terminal and a control terminal of the reset transistor are electrically connected to a power supply terminal, a control terminal of the amplification transistor and a reset signal terminal, respectively; an input terminal and output terminal of the amplification transistor are electrically connected to the power supply terminal and an input terminal of the control transistor respectively, and a control terminal of the control transistor is connected to a signal control terminal.

Photosensitive circuit structure and optical device

A fingerprint identification circuit, a display panel, and a control method thereof. A first electrical signal is generated by a light sensation circuit in that fingerprint identification circuit according to the detected optical signal reflected by the finger, potential information of the first electrical signal is stored in a holding circuit, and a second electrical signal for fingerprint identification is output by a scanning circuit according to the potential information of the first electrical signal stored in the holding circuit, so that the fingerprint identification device can complete the collection of the electrical signals output by all the fingerprint identification circuits set by the fingerprint identification device in the case that the residence time of the user's finger is short, thereby supporting the design of fingerprint identification circuits with larger area and higher density in the optical fingerprint identification device.

Fingerprint identification circuit, display panel and control method thereof

Growing community of inventors

Hefei, China

Shuang Cui