发明授权
US07038641B2 Color/black-and-white switchable portable terminal and display unit
有权
彩色/黑白可切换便携式终端和显示单元
- 专利标题： Color/black-and-white switchable portable terminal and display unit
- 专利标题（中）： 彩色/黑白可切换便携式终端和显示单元
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申请号： US10752508申请日： 2004-01-08
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公开(公告)号： US07038641B2公开(公告)日： 2006-05-02
- 发明人: Shouichi Hirota , Makoto Tsumura , Ikuo Hiyama , Takayuki Oouchi
- 申请人： Shouichi Hirota , Makoto Tsumura , Ikuo Hiyama , Takayuki Oouchi
- 申请人地址： JP Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Antonelli, Terry, Stout and Kraus, LLP.
- 主分类号： G09G3/32
- IPC分类号： G09G3/32
摘要：
A display unit has a brightness equal to that in a conventional black-and-white reflection type and the power consumption is small at a standby time, and bright color display of high quality can be produced and power consumption is small at the time of use. An information device having this display unit, such as a portable phone, also is provided. The display unit has a color light emitting means, a reflecting mean of external light and a light polarizing state modulating means. The display unit has a driving method switching means for switching color light emitting display and reflection display by on/off control of the light emitting means and switching control of a driving method of a display element.