发明授权
- 专利标题: Liquid crystal display apparatus
- 专利标题(中): 液晶显示装置
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申请号: US10366762申请日: 2003-02-14
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公开(公告)号: US07218299B2公开(公告)日: 2007-05-15
- 发明人: Eiji Yamakawa , Naoki Masazumi
- 申请人: Eiji Yamakawa , Naoki Masazumi
- 申请人地址: JP Osaka
- 专利权人: Minolta Co., Ltd.
- 当前专利权人: Minolta Co., Ltd.
- 当前专利权人地址: JP Osaka
- 代理机构: Sidley Austin LLP
- 优先权: JP2002-087192 20020218
- 主分类号: G09G3/36
- IPC分类号: G09G3/36
摘要:
This invention is directed to a liquid crystal display apparatus which includes a liquid crystal display element, and a driving device for driving the display element by simple matrix driving. The display element includes a liquid crystal layer exhibiting a cholesteric phase, and has scanning electrodes and signal electrodes. The driving device is configured such that a driving voltage of single polarity including a selection signal voltage is applied to the scanning electrodes in each frame, and the polarity of the driving voltage is reversed in every frame. The selection signal voltage is successively applied to each scanning electrode in a scanning period set for the scanning electrode, while a rewriting signal voltage corresponding to each scanning electrode in the selected state is applied to each signal electrode. An application period of the selection signal voltage to the scanning electrode is ½ the scanning period.
公开/授权文献
- US20030156089A1 Liquid crystal display apparatus 公开/授权日:2003-08-21
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