Importance

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Abstract

In the conventional liquid crystal display, there exists a problem in display that shortage in voltage applied to a liquid crystal and crosstalk occur because of delay in waveform of a common potential Vcom. A liquid crystal display has a drive circuit for applying a gate potential Vg having a High potential setting a gate line 1 to a selection level and a Low potential setting the gate line to a non-selection level to the gate line 1 of a display panel, comprises a common potential generation circuit for applying a common potential Vcom inverting to a high potential or a low potential for each horizontal scanning period to a common electrode 10 of the display panel, an auxiliary electrode connected to a picture element electrode 6 through an auxiliary capacity 7 is provided, the auxiliary electrode is connected to a common line, Low potential changed synchronizing with the high potential and low potential of the common potential Vcom and with respect to a potential difference between the second voltage and the common potential, the potential difference at the high potential of the common potential is equal to that at the low potential of the common potential.

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First Claim