Title:
光検出回路、及び光検出装置
Document Type and Number:
Japanese Patent JP6767886
Kind Code:
B2
Abstract:
A photodetector circuit includes: a photodetector transistor; a current output transistor; a switching transistor; and a first capacitor. The source of the photodetector transistor, the gate of the current output transistor, and the first terminal of the first capacitor are connected to one another. The source of the current output transistor, the drain of the switching transistor, and the second terminal of the first capacitor are connected to one another. The photodetector transistor has a drain connected to a reference potential line, and upon receiving light when the photodetector transistor is in an off state, the source of the photodetector transistor collects electric charges generated by an internal photoelectric effect. The current output transistor has a drain connected to a power line which can have a first power supply potential and a second power supply potential. The switching transistor has a source connected to a photodetection line.
Inventors:
Tetsuro Yamamoto
Application Number:
JP2017007867A
Publication Date:
October 14, 2020
Filing Date:
January 19, 2017
Export Citation:
Assignee:
Joled Co., Ltd.
International Classes:
H04N5/374; G01J1/02; G01J1/44
Domestic Patent References:
| JP2011141417A | ||||
| JP11317910A | ||||
| JP2016208515A |
Attorney, Agent or Firm:
Shuichi Yoshikawa
Masao Sakajima
Masao Sakajima