Driving method of active matrix display device

A driving method for an active matrix display device of an in-plane switching mode comprising, a plurality of scan lines, a plurality of common lines, a pixel capacitor element having a pixel electrode and a switching element comprising a control electrode, the method comprising the steps of:

• applying a first potential to each of said common lines in accordance with a selection pulse applied to a corresponding one of said scan lines;
• changing said first potential to a second potential selected from V.sub.H and V.sub.L where V.sub.H >V.sub.L, and different from said first potential for each of said common lines when said selection pulse is not applied to said corresponding one of said scan lines;
• and
• applying a potential V.sub.D to said pixel electrode, said potential V.sub.D satisfying a condition V.sub.L .ltoreq.V.sub.D .ltoreq.V.sub.H.

A driving method for an active matrix display device of an in-plane switching mode comprising a plurality of scan lines, a plurality of data lines, a plurality of common lines, a pixel capacitor element having a pixel electrode, and a switching element comprising a control electrode, the method comprising the steps of:

• applying to each of said common lines a first potential selected from V.sub.H and V.sub.L where V.sub.H >V.sub.L when a selection pulse is not applied to a corresponding one of said scan lines, where said first potential is different from a second potential applied to such common line when a selection pulse is applied to said corresponding one of said scan lines;
• and
• applying to said pixel capacitor element with a potential difference which is always not higher than V.sub.H -V.sub.L,
• wherein said V.sub.H and V.sub.L are maximum and minimum potentials given to said common lines, respectively.

A driving method for an active matrix display device comprising the steps of:

• applying to each of common lines a potential being selected from V.sub.H and V.sub.L where V.sub.H >V.sub.L when a selection pulse is not applied to a corresponding one of said scan lines;
• changing said potential being applied to said common line to the other potential value when said selection pulse is applied to said corresponding one of said scan lines;
• applying a potential V.sub.D to a pixel electrode, said potential V.sub.D satisfying a condition V.sub.L .ltoreq.V.sub.D .ltoreq.V.sub.H,
• wherein a potential difference applied to said pixel capacitor elements is always not higher than V.sub.H -V.sub.L,
• and
• wherein said V.sub.H and V.sub.L are maximum and minimum potentials given to said common lines, respectively.