An electro-optical apparatus including a first substrate, a second substrate disposed opposite to the first substrate, a display medium layer disposed between the first substrate and the second substrate, a first electrode disposed between the first substrate and the display medium layer, a second electrode disposed between the first substrate and the display medium layer and separated from the first electrode and a third electrode disposed between the display medium layer and the second substrate is provided. The display medium layer includes electrophoretic fluid and charged particles mixed into the electrophoretic fluid. Moreover, driving methods used to drive the electro-optical apparatus and another electro-optical apparatus are also provided.