Semiconductor device, liquid crystal display device and electronic equipment

A semiconductor device comprising:

• a circuit block, which has an m (m is an integer of not smaller than two) sets of first through m-th transistor columns where two or more transistors are connected in series and in which the first through m-th transistor columns have an identical or a varied number of transistors, one terminal of the first through m-th transistor columns is connected to a first output node, and the other terminal of the first through m-th transistor columns is connected to a second output node, wherein
• the circuit block comprises an intermediate node interconnection transistor for interconnecting at least two intermediate nodes of different transistor columns among the intermediate nodes of the first through m-th transistor columns, and
• a control signal for substantially simultaneously making all the transistors of the first through m-th transistor columns and the intermediate node interconnection transistor on-state or off-state is inputted to a control input terminal of the transistors of the first through m-th transistor columns and a control input terminal of the intermediate node interconnection transistor.