公开(公告)号：US11953373B1

公开(公告)日：2024-04-09

申请号：US17967898

申请日：2022-10-18

Applicant: Japan Display Inc.

Inventor： Naoki Takada ,  Xingle Wang ,  Chung-Kai Chen

IPC: G01J1/44 ,  G01J1/46

CPC classification number: G01J1/44 ,  G01J1/46 ,  G01J2001/446 ,  G01J2001/448

Abstract: According to one embodiment, a sensor device comprises a sensor configured to output a sense signal, a value the sense signal changing over time based on incident light, a first reset circuit configured to set the value of the sense signal to a reset value when the value of the sense signal exceeds a threshold, a counter configured to count a first number of times of reset by the first reset circuit, and an arithmetic operation circuit configured to calculate an amount of incident light of a certain period based on the value of the sense signal, the reset value, and the first number of times of reset.