发明申请
- 专利标题： DISPLAY APPARATUS AND DISPLAY SYSTEM
- 专利标题（中）： 显示设备和显示系统
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申请号： US11917877申请日： 2007-03-26
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公开(公告)号： US20090231252A1公开(公告)日： 2009-09-17
- 发明人: Hiroshi Maegawa
- 申请人： Hiroshi Maegawa
- 优先权： JP2006-083063 20060324; JP2007-035099 20070215
- 国际申请： PCT/JP2007/057327 WO 20070326
- 主分类号： G09G3/36
- IPC分类号： G09G3/36
摘要：
A display unit displays information without a power supply. An area identifying unit determines whether the display apparatus is inside a permission area where a read of the information displayed on the display unit is permitted. A data controller deletes the information displayed on the display unit or displays other information on the display unit, when the area identifying unit determines that the display apparatus has moved from inside the permission area to outside the permission area.
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