Patent ID: 7403038
Filing Date: 2008-07-22
Classification: G09G,G11C,H03K

Abstract:
1. A method of driving a semiconductor device comprising the steps of: inputting a first signal to gate electrodes of first and second transistors; inputting a second signal to a gate electrode of a third transistor and a first signal output portion through input and output electrodes of the first transistor in accordance with the input of the first signal; outputting an inverting signal of the second signal output to a second signal output portion from output electrodes of the second and third transistors in accordance with the input of the first signal; wherein the first, second, and third transistors have the same conductivity type, wherein a first capacitor means is located to the first signal output portion and keeps a potential of a signal outputted from the first signal output portion, and wherein a second capacitor means is located to the second signal output portion and keeps a potential of a signal outputted from the second signal output portion.