Invention Grant
- Patent Title: Output circuit, data driver, and display apparatus
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Application No.: US17672645Application Date: 2022-02-15
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Publication No.: US11568831B2Publication Date: 2023-01-31
- Inventor: Hiroshi Tsuchi , Manabu Nishimizu
- Applicant: LAPIS Technology Co., Ltd.
- Applicant Address: JP Yokohama
- Assignee: LAPIS Technology Co., Ltd.
- Current Assignee: LAPIS Technology Co., Ltd.
- Current Assignee Address: JP Yokohama
- Agency: JCIPRNET
- Priority: JPJP2021-025159 20210219
- Main IPC: G09G3/36
- IPC: G09G3/36 ; H03K17/687 ; G02F1/1362 ; G02F1/133

Abstract:
An output circuit includes a first switch that outputs a positive voltage signal received via a first node when in an ON state, a second switch that outputs a negative voltage signal received via a second node when in an ON state, third and fourth switches that set the first and second nodes to a reference power supply voltage when in an ON state, a first follower circuit that generates, as a gate voltage, a voltage signal following and being in phase with a voltage signal of the first node through source follower operation and supplies the gate voltage to a gate of the first switch, and a second follower circuit that generates, as a gate voltage, a voltage signal following and being in phase with a voltage signal of the second node through source follower operation and supplies the gate voltage to a gate of the second switch.
Public/Granted literature
- US20220270563A1 OUTPUT CIRCUIT, DATA DRIVER, AND DISPLAY APPARATUS Public/Granted day:2022-08-25
Information query
IPC分类: