36‐5: A Novel FOD Solution with High‐PPI Flexible Sensor under OLED Panel

Lu, Feng; Lu, Lian; Yu, Haochi; Li, Kai; Zhang, Bo; Yao, Qijun; Zeng, Yang; Wu, Yunchao; Yuan, Di

doi:10.1002/sdtp.14725

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2024

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“…In order to increase the area of fingerprint recognition zone, sensors such as OPD [1][2][3] and PIN [4] that can be manufactured on glass substrates have been proposed. However, due to their complex process flow and the need for expensive optical structures such as collimators or microlenses [5][6][7][8], they have not yet been mass-produced.…”

Section: Introductionmentioning

confidence: 99%

P‐29: A bias TFT with high photosensitive current for optical sensors

Xu,

Yao,

Zhang

et al. 2024

Symp Digest of Tech Papers

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A photosensitive TFT sensor called bias TFT fabricated using simple amorphous silicon process in this paper. The photosensitive current of bias TFT is linearly related to the brightness of the top light source and inversely proportional to the size of the bias region. The photosensitivity current can be up to 10E‐8 amperes under 100 nits illumination. Among four shapes of bias TFTs, L‐type TFTs have the highest photo current.

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