Patent ID: 8878758

Claim:
A charge-sharing path control device for a scan driver for use in an LCD panel with a plurality of sequentially activated channels, comprising: a bidirectional switch defining a single charge transfer path and comprising a pair of transistors, with each transistor comprising a degeneration resistance, a common source control node, a source connected, via said degeneration resistance, to said common source control node, a common gate control node, a gate connected to said common gate control node, a drain to be coupled to a respective one of the activated channels and to be coupled to a charge storage node, respectively, and a clamp diode connected between said source and said gate; and a charge transfer having an output connected to said common gate control node and to said common source control node, respectively, of said bidirectional switch for tying both control nodes to a low voltage supply for disabling the charge-sharing path during off periods and for pulling up both control nodes during a turn-off or a turn-on phase of the activated channel.