Back to results
US 2025/0148824 A1Published application
Detection device
AssigneeJapan Display Inc.
InventorsAkihiko FUJISAWA, Takaaki KONO
Life of this patent
Estimating the term…
Abstract
A detection device includes a sensor circuit provided with a first photodiode in a semiconductor layer, and a signal detector configured to acquire a detection value corresponding to a signal output from the sensor circuit. The signal detector includes a first detection circuit coupled to one end of the first photodiode, a first switch circuit configured to apply a power supply potential to another end of the first photodiode, and a second switch circuit configured to short both ends of the first photodiode.
Claims6
A detection device comprising:
- a sensor circuit provided with a first photodiode and a second photodiode in a semiconductor layer;
- and
- a signal detector configured to acquire a detection value corresponding to a signal output from the sensor circuit, wherein
- the first photodiode has one end coupled to the signal detector and another end coupled to a reference potential,
- both ends of the second photodiode are electrically connected to the signal detector, and
- the signal detector is configured to output a difference value between a detection value acquired by the first photodiode and a detection value acquired by the second photodiode.
3 more elements
A detection device comprising:
- a sensor circuit provided with a first photodiode having a first detection electrode and a first power supply electrode with a semiconductor layer therebetween;
- a second detection electrode adjacent to the first detection electrode;
- and
- a signal detector configured to acquire a detection value corresponding to a signal output from the sensor circuit, wherein
- one end of the first detection electrode and the first power supply electrode is coupled to the signal detector and another end of the first detection electrode and the first power supply electrode is coupled to a reference potential,
- the second detection electrode is coupled to the signal detector, and
- the signal detector is configured to output a difference value between a detection value acquired by the first detection electrode and a detection value acquired by the second detection electrode.
4 more elements
Dependencies are inferred from the claim text.