Invention Grant
- Patent Title: Scan driver for a display device with reduced degradation of transistors
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Application No.: US17699943Application Date: 2022-03-21
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Publication No.: US11776482B2Publication Date: 2023-10-03
- Inventor: Jong Hee Kim , Soo Yeon Lee
- 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: KR 20190012204 2019.01.30
- The original application number of the division: US16744009 2020.01.15
- Main IPC: G09G3/32
- IPC: G09G3/32 ; G09G3/3266 ; G09G3/36

Abstract:
A scan driver for a display device includes a plurality of scan stage groups, each of the scan stage groups including a first scan stage and a second scan stage. The first scan stage includes: a first transistor including a gate electrode coupled to a first Q node, one electrode coupled to a first scan clock line, and another electrode coupled to a first scan line; a second transistor including a gate electrode and one electrode, which are coupled to a first scan carry line, and another electrode coupled to the first Q node; a third transistor including a gate electrode coupled to a first control line and one electrode coupled to a first sensing carry line; a fourth transistor including a gate electrode coupled to the other electrode of the third transistor, one electrode coupled to a second control line, and another electrode coupled to a first node; a first capacitor including one electrode coupled to the one electrode of the fourth transistor and another electrode coupled to the gate electrode of the fourth transistor; a fifth transistor including a gate electrode coupled to a third control line, one electrode coupled to the first node, and another electrode coupled to the first Q node; and a sixth transistor including a gate electrode coupled to the first Q node, one electrode coupled to the second control line, and another electrode coupled to the first node.
Public/Granted literature
- US11823626B2 Scan driver for a display device with reduced degradation of transistors Public/Granted day:2023-11-21
Information query
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