| abstract |
An object of one embodiment of the disclosed invention is to provide a pulse signal output circuit capable of operating stably and a shift register including the same. A pulse signal output circuit according to one embodiment of the disclosed invention includes first to tenth transistors, and a ratio W / L of a channel width W to a channel length L of the first transistor and the third transistor. Is larger than the W / L of the sixth transistor, the W / L of the fifth transistor is larger than the W / L of the sixth transistor, and the W / L of the fifth transistor is the seventh transistor. The W / L of the third transistor is made larger than the W / L of the fourth transistor. Thus, it is possible to provide a pulse signal output circuit capable of operating stably and a shift register including the same. [Selection] Figure 1 |