| abstract |
A shift register in which noise of an output signal is small and deterioration of characteristics of a transistor can be suppressed is provided. A first transistor, a second transistor, a third transistor, and a fourth transistor are provided. In the first transistor, a first terminal is connected to a first wiring, and a second terminal is connected to a second line. Connected to the gate terminal of the transistor, the gate terminal connected to the fifth wiring, In the second transistor, the first terminal is connected to the third wiring, the second terminal is connected to the sixth wiring, in the third transistor, the first terminal is connected to the second wiring, and the second terminal is connected to the second wiring. The gate terminal of the second transistor is connected, the gate terminal is connected to the fourth wiring, the first terminal of the fourth transistor is connected to the second wiring, and the second terminal is connected to the sixth wiring. The gate terminal is connected to the fourth wiring. [Selection] Figure 1 |