Related to is an array substrate, a liquid crystal display panel, and a driving method for the liquid crystal display panel. The array substrate includes a plurality of pixel units, each of which includes a main-area electrode, a sub-area electrode and a sharing capacitor, wherein a control terminal of a sharing control switch which connects the sharing capacitor with the sub-area electrode is connected, via a control switch, to a scan line correlated with an Nth pixel unit which is arranged in a scanning direction and counted from the present pixel unit. The control switch is configured to be turned on in a two-dimensional scanning mode when at least there is a scan signal on the scan line, and to be turned off in a three-dimensional scan mode when at least there is the scan signal on the scan line.