Invention Grant
- Patent Title: Display device having bootstrap circuit supplied with a precharge voltage
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Application No.: US17696941Application Date: 2022-03-17
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Publication No.: US11688337B2Publication Date: 2023-06-27
- Inventor: Kenji Harada , Tetsuo Morita
- Applicant: Japan Display Inc.
- Applicant Address: JP Tokyo
- Assignee: JAPAN DISPLAY INC.
- Current Assignee: JAPAN DISPLAY INC.
- Current Assignee Address: JP Tokyo
- Agency: Xsensus LLP
- Priority: JP 2021055985 2021.03.29
- Main IPC: G09G3/3208
- IPC: G09G3/3208

Abstract:
A bootstrap circuit includes a first transistor including a gate electrode, a first and a second electrodes, a capacitor connected between the gate electrode and the second electrode, and a second transistor connected to the gate electrode. In a first period, the second transistor is turned on and the gate electrode is supplied with a first analog voltage, the first transistor is turned on, and the second electrode is supplied with a precharge voltage smaller than the first analog voltage from the first electrode. In a second period, the second transistor is turned off, the first electrode is supplied with a second analog voltage, the capacitor supplies a third analog voltage to the gate electrode in response to the first analog voltage and the second analog voltage, and the second electrode is supplied with the second analog voltage from the first electrode.
Public/Granted literature
- US20220310003A1 DISPLAY DEVICE AND BOOTSTRAP CIRCUIT Public/Granted day:2022-09-29
Information query
IPC分类: