Display device and electoric device having the same

摘要

It is an object of the present invention to provide a display device where power consumption can be suppressed and the number of gray scales can be increased without a scanning line driver circuit on both sides of a pixel portion. In a display device having a scanning line driver circuit, a shift register included in the scanning line driver circuit has 4m-stage (m is a natural number) flip-flop circuits in every m scanning lines, and a signal which selects the scanning line in a first half period of one scanning line selection period and a signal which selects the scanning line in a second half period of the one scanning line selection period are output to the scanning line by another start pulse.

主权项

1. A display device comprising:
a scanning line driver circuit; and m scanning lines (m is a natural number of greater than or equal to 2) electrically connected to the scanning line driver circuit, wherein 4k-stage (k is a natural number) flip-flop circuits corresponding to each of the m scanning lines are provided in a shift register included in the scanning line driver circuit, wherein an output of a fourth stage flip-flop circuit of 4k-stage flip-flop circuits corresponding to an i-th scanning line (1≦i≦m−1) is electrically connected to an input of a first stage flip-flop circuit of 4k-stage flip-flop circuits corresponding to an (i +1)-th scanning line, and wherein a level shifter is configured to amplify directly an output of the first stage flip-flop circuit of the 4k-stage flip-flop circuits.