Invention Grant
- Patent Title: Photosensitive circuit, method of driving photosensitive circuit and display device
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Application No.: US15953538Application Date: 2018-04-16
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Publication No.: US10665147B2Publication Date: 2020-05-26
- Inventor: Zhiliang Wang , Zhanjie Ma
- Applicant: BOE TECHNOLOGY GROUP CO., LTD.
- Applicant Address: CN Beijing
- Assignee: BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee: BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee Address: CN Beijing
- Agency: Calfee, Halter & Griswold LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6d5a0804
- Main IPC: G09G3/20
- IPC: G09G3/20 ; H01L31/113 ; H01L31/0232 ; H01L27/146 ; H01L31/032 ; H01L31/0352 ; H01L31/112

Abstract:
The present disclosure provides a photosensitive circuit, a method of driving a photosensitive circuit and a display device. The photosensitive circuit includes: a first photosensitive transistor, configured to be turned on in response to a signal of a first node, to transmit a current flowing through the first photosensitive transistor to a second node and generate an induced electrical signal based on an incident light; a second photosensitive transistor, configured to be turned on in response to a first scan signal, to transmit a voltage of the first scan signal to the first node and generate an induced electrical signal based on an incident light; and a first switch, configured to be turned on in response to the first scan signal, to transmit a signal of the second node to a reading terminal. Threshold voltages of both photosensitive transistors are negatively correlated with an intensity of the incident light.
Public/Granted literature
- US20190043401A1 PHOTOSENSITIVE CIRCUIT, METHOD OF DRIVING PHOTOSENSITIVE CIRCUIT AND DISPLAY DEVICE Public/Granted day:2019-02-07
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