发明名称 |
Liquid crystal element driving apparatus |
摘要 |
An apparatus for driving a liquid crystal element by an increased voltage and at a lowered frequency in conformity with temperature fall in the liquid crystal element so as to achieve complete driving of the element even in a low temperature range. In order to increase the driving voltage, the apparatus comprises a booster circuit for increasing a battery voltage, and a voltage divider circuit including an element-temperature sensor as a component thereof and serving to produce a control voltage by dividing the output voltage of the booster circuit. In such configuration, the booster circuit performs its operation in such a manner as to maintain constant the control voltage obtained from the voltage divider circuit.
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申请公布号 |
US4687956(A) |
申请公布日期 |
1987.08.18 |
申请号 |
US19840670015 |
申请日期 |
1984.11.09 |
申请人 |
NIPPONDENSO CO., LTD. |
发明人 |
ITOH, HIROSHI;SUZUKI, YASUTOSHI;FUKADA, TSUYOSHI;OHMI, SHINYA;HARA, KUNIHIKO |
分类号 |
G09G3/18;B60R1/08;G02F1/133;(IPC1-7):G02F1/13;G09G3/36;H03K3/26 |
主分类号 |
G09G3/18 |
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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