发明授权
- 专利标题: Driving method of liquid crystal display device and liquid crystal display device
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申请号: US10282679申请日: 2002-10-29
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公开(公告)号: US08564514B2公开(公告)日: 2013-10-22
- 发明人: Toshiaki Yoshihara , Shinji Tadaki , Tetsuya Makino , Hironori Shiroto , Yoshinori Kiyota , Keiichi Betsui
- 申请人: Toshiaki Yoshihara , Shinji Tadaki , Tetsuya Makino , Hironori Shiroto , Yoshinori Kiyota , Keiichi Betsui
- 申请人地址: JP Kawasaki
- 专利权人: Fujitsu Limited
- 当前专利权人: Fujitsu Limited
- 当前专利权人地址: JP Kawasaki
- 代理机构: Greer, Burns & Crain, Ltd.
- 优先权: JP2001-120211 20010418; JP2002-040677 20020218
- 主分类号: G09G3/36
- IPC分类号: G09G3/36
摘要:
In a liquid crystal display device that uses a liquid crystal material having spontaneous polarization and is actively driven by a TFT, a voltage corresponding to image data is applied twice by driving the TFT of each pixel electrode on a line by line basis of a liquid crystal panel, during writing in one frame. During erasure in one frame, voltage application to liquid crystal by batch selection of all the pixel electrodes is performed three times. With this three times of voltage application, it is possible to achieve a black display state in each pixel and make the stored charge amount at the liquid crystal in each pixel substantially zero.
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