发明名称 |
Liquid crystal device having drive duty ratios of all display portions in the power-saving operation mode lower than those in the normal operation mode |
摘要 |
A structure of a liquid crystal device cutting down the power consumption is materialized. In a liquid crystal display device comprising at least two display portions of a dot matrix portion and an icon portion in the same panel, drive is carried out such that both of the display portions are displayed in a normal operation mode and, only the icon portion is displayed in a power-saving operation mode such as when the liquid crystal display device is waiting for operation or is standby. In the power-saving operation mode, the duty ratios of all of the display portions in the power-saving operation mode are lower than those in the normal operation mode, and time shared drive waveforms using the power source voltage as it is which does not require bias voltage are applied.
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申请公布号 |
US6160594(A) |
申请公布日期 |
2000.12.12 |
申请号 |
US19970975369 |
申请日期 |
1997.11.20 |
申请人 |
SEIKO INSTRUMENTS INC. |
发明人 |
HANAMI, TAKAYOSHI;KOHATA, TAKASHI |
分类号 |
G02F1/133;G09G3/36;(IPC1-7):G02F1/133;G02F1/134 |
主分类号 |
G02F1/133 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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