Title:
CHOLESTERIC LIQUID CRYSTAL DISPLAY DEVICE AND REWRITE METHOD FOR DISPLAY SCREEN OF CHOLESTERIC LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/080349
Kind Code:
A1
Abstract:
Provided is a drive method for a cholesteric liquid crystal display device that can assure system operating stability even during battery voltage drops. The drive method for the proposed cholesteric liquid crystal display device is provided with: a monitoring step for monitoring a battery power supply voltage by a monitoring unit; a line number setting step that, when the difference between the power supply voltage of the battery that is monitored in the monitoring step and a lower limit value for the battery output voltage necessary for normal operation of a processing device is lower than a prescribed value, sets the number of lines for which high voltage is applied at one time lower than when the difference is the prescribed value or higher; and a step for executing rewriting of the display screen with the number of lines that has been set.
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Inventors:
UENO YUJI (JP)
Application Number:
PCT/JP2011/077729
Publication Date:
June 06, 2013
Filing Date:
November 30, 2011
Export Citation:
Assignee:
FUJITSU FRONTECH LTD (JP)
UENO YUJI (JP)
UENO YUJI (JP)
International Classes:
G09G3/36; G02F1/133; G09G3/20
Foreign References:
| JP2005215332A | 2005-08-11 | |||
| JP2009069192A | 2009-04-02 | |||
| JP2006323071A | 2006-11-30 | |||
| JPH10206882A | 1998-08-07 | |||
| JP2006065018A | 2006-03-09 |
Attorney, Agent or Firm:
OSUGA, Yoshiyuki (JP)
Yoshiyuki Osuge (JP)
Yoshiyuki Osuge (JP)
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Claims: