| 摘要 |
PURPOSE: To realize a scanning circuit and its drive method in which a change in a threshold voltage of transistor(TR) elements is recovered. CONSTITUTION: Circuit blocks A, B each provided with a means that connects a node floating to ground when connecting a clock signal application terminal and a power supply voltage application terminal connect to ground and a means setting a level of part of the nodes to a power supply voltage level are connected in series and the connection circuit acts like a scanning circuit. The scanning circuit is driven by 4-phase clock signals ϕ1,ϕ2,ϕ3,ϕ4 which repeat sequentially a data reception period, a data transfer period, a discharge period and a state setting period and the circuit blocks connected in series are driven by the 4-phase clock signals whose phases are shifted for a phase one by one sequentially. |
