Invention Application
- Patent Title: SENSOR PIXEL, FINGERPRINT SENSOR, AND METHOD FOR DRIVING THE SAME
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Application No.: US15875188Application Date: 2018-01-19
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Publication No.: US20190012504A1Publication Date: 2019-01-10
- Inventor: Ki Seo KIM , Jae-Kyoung KIM , Byung Han YOO
- Applicant: Samsung Display Co., Ltd.
- Priority: KR10-2017-0085461 20170705
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06K9/40

Abstract:
A sensor pixel includes: a reference capacitor including a first end connected to a driving signal line and a second end connected to a first node; a touch capacitor including one electrode connected to the first node, wherein capacitance of the touch capacitor changes by touching of an external object; a first transistor including a first end connected to an initialization voltage line, a second end connected to the first node, and a control end connected to an initialization line; a second transistor including a first end for receiving a common voltage, a second end for outputting a current generated based on the common voltage, and a control end connected to the first node; and a third transistor including a first end connected to the second end of the second transistor, a second end connected to a sensing line, and a control end connected to a scan line.
Public/Granted literature
- US10558836B2 Sensor pixel, fingerprint sensor, and method for driving the same Public/Granted day:2020-02-11
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