Invention Grant
- Patent Title: Scan driver and display device having the same
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Application No.: US16707994Application Date: 2019-12-09
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Publication No.: US11348530B2Publication Date: 2022-05-31
- Inventor: Yang Hwa Choi , Jun Hyun Park , Dong Woo Kim , Kang Moon Jo , Sung Jae Moon , An Su Lee , Woong Sik Choi
- Applicant: Samsung Display Co., Ltd.
- Applicant Address: KR Yongin-si
- Assignee: Samsung Display Co., Ltd.
- Current Assignee: Samsung Display Co., Ltd.
- Current Assignee Address: KR Yongin-si
- Agency: H.C. Park & Associates, PLC
- Priority: KR10-2018-0158527 20181210,KR10-2018-0172335 20181228,KR10-2019-0018064 20190215
- Main IPC: G09G3/3266
- IPC: G09G3/3266 ; G09G3/3258 ; G09G3/3275

Abstract:
A stage of a scan driver includes: a first driving controller for controlling a voltage of a first node and a voltage of a second node; a second driving controller for controlling a voltage of a first driving node, based on a sensing-on signal, a next carry signal, a first control clock signal, a second control clock signal, the voltage of the first node, and a voltage of a sampling node, and controlling a voltage of a second driving node, based on the voltage of the sampling node and the voltage of the first driving node; an output buffer for outputting a carry signal, the first scan signal, and the second scan signal; and a coupling controller. The second driving controller maintains the voltage of the first driving node as a gate-off voltage in response to the voltage of the second driving node and a third control clock signal.
Public/Granted literature
- US20200184898A1 SCAN DRIVER AND DISPLAY DEVICE HAVING THE SAME Public/Granted day:2020-06-11
Information query
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