- 专利标题: Liquid crystal display device and driving method therefor
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申请号: US18141908申请日: 2023-05-01
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公开(公告)号: US11967294B2公开(公告)日: 2024-04-23
- 发明人: Masaki Uehata , Yasuki Mori , Kohji Saitoh , Takayuki Mizunaga , Kazuya Kondoh , Takashi Nojima , Kazuhisa Yoshimoto , Kosuke Kawamoto , Hiroyuki Kito , Kazuki Nakamichi
- 申请人: Sharp Display Technology Corporation
- 申请人地址: JP Kameyama
- 专利权人: Sharp Display Technology Corporation
- 当前专利权人: Sharp Display Technology Corporation
- 当前专利权人地址: JP Kameyama
- 代理机构: ScienBiziP, P.C.
- 优先权: JP 22081459 2022.05.18
- 主分类号: G09G3/36
- IPC分类号: G09G3/36
摘要:
A common electrode driver includes an inverting amplifier including a first resistor, a second resistor, and an operational amplifier, and a resistance ratio adjustment circuit that adjusts, in accordance with a length of one horizontal scan period, a resistance ratio being a ratio of a resistance value of the second resistor to a resistance value of the first resistor. A feedback voltage is provided to one end of the first resistor. The resistance ratio adjustment circuit sets the resistance ratio when second driving is performed, in which a length of one horizontal scan period is a second time longer than a first time, to be smaller than the resistance ratio when first driving is performed, in which a length of one horizontal scan period is the first time.
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