发明名称 |
COMMON ELECTRODE DRIVING DEVICE IN A LIQUID CRYSTAL DISPLAY |
摘要 |
A common electrode driving device comprising a first driver for driving such that the voltage of the common electrode of a liquid crystal display panel is maintained at a predetermined level every time a horizontal scanning is carried out, an electric charge storage capacitance having a capacitance larger than a capacitance as a common electrode capacitance, an inductance for constituting a resonance circuit, switching means for switching the resonance circuit such that it operates for a predetermined period of time, and a second driver for charging to the electric charge storage capacitance electric charge to make up for the shortage. Since an amount to be driven by the first driver is decreased due to the electric charge storage capacitance and since the second driver excessively charges electric charge to the electric charge storage capacitance, it is possible to change the voltage of the common electrode to a desired level more quickly.
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申请公布号 |
WO9637803(A1) |
申请公布日期 |
1996.11.28 |
申请号 |
WO1995JP00991 |
申请日期 |
1995.05.23 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION;KOBAYASHI, YOSHINAO;KURODA, AKIHIRO;SEKIYA, KAZUO |
发明人 |
KOBAYASHI, YOSHINAO;KURODA, AKIHIRO;SEKIYA, KAZUO |
分类号 |
G09G3/36;(IPC1-7):G02F1/133 |
主分类号 |
G09G3/36 |
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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