An acoustic barrier structure can include a support structure that defines a plurality of cells, a weight attached to the support structure, and at least one resonant membrane covering one of the plurality of cells. Since the gate insulation film is partially etched at the upper portion, rather than being completely etched, and re-formed to a planned thickness and then the semiconductor layer is re-formed, the electric characteristics of the display device are prevented from being degraded by the damage to the interface of the gate insulation film. The plurality of receiver antennas is operable to receive, in a first time interval, a first communication from a base station and a second communication from a subscriber station.