发明申请
US20130342432A1 Cholesteric Liquid Crystal Writing Tablet Erased By A Piezoelectric Transducer
审中-公开
胆甾型液晶写字板被压电式传感器擦除
- 专利标题： Cholesteric Liquid Crystal Writing Tablet Erased By A Piezoelectric Transducer
- 专利标题（中）： 胆甾型液晶写字板被压电式传感器擦除
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申请号： US13965255申请日： 2013-08-13
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公开(公告)号： US20130342432A1公开(公告)日： 2013-12-26
- 发明人: Tod Schneider , Oleg Pishnyak , Andrew DeMiglio , Mark Lightfoot , Duane Marhefka
- 申请人： Kent Displays Incorporated
- 申请人地址： US OH kent
- 专利权人： Kent Displays Incorporated
- 当前专利权人： Kent Displays Incorporated
- 当前专利权人地址： US OH kent
- 主分类号： G09G3/34
- IPC分类号： G09G3/34
摘要：
A display device includes a cholesteric liquid crystal writing tablet and a piezoelectric transducer. The piezoelectric transducer is subjected to a mechanical force that generates a voltage that is applied to the writing tablet that erases writing on the writing tablet. A further feature is a display device comprising a cholesteric liquid crystal display and a piezoelectric transducer. The piezoelectric transducer is subjected to a mechanical force that generates a voltage that is applied to the display that places the display in at least one of a color reflective planar state, a substantially transparent focal conic state and a gray scale state. Also featured is a method of erasing a cholesteric liquid crystal writing tablet.
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