F. Chau & Associates, LLC
Common voltage distortion detecting circuit, liquid crystal display device and method of driving the same
A common voltage distortion detecting circuit includes a current sensor, a voltage difference voltage detecting circuit and a comparator. The current sensor is disposed between a circuit configured to apply a common voltage to a liquid crystal display panel and an input power terminal providing a power voltage. The voltage difference detecting circuit is configured to detect a difference voltage between two terminals of the current sensor. The comparator is configured to compare the difference voltage and a reference voltage to output an over current signal to convert an inversion method of the liquid crystal display panel when the difference voltage is greater than the reference voltage.
SAMSUNG DISPLAY CO., LTD.
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inventional inventional additional
Hyong-Do Yun-Nam
Choi Kim