Patent ID: 7342565

Claim:
An active matrix display device comprising: a pixel portion comprising n×m pixels arranged in matrix; n signal lines, each of which is electrically connected to corresponding m of the n×m pixels; and a driving circuit including: first to n-th register circuits, each of which is connected to a clock pulse input terminal; and first to n-th digital data latch circuits, each of which is connected to a digital data input terminal, corresponding one of the first to n-th resister circuits, and corresponding one of n signal lines; wherein: a k-th circuit of the first to n-th register circuits is connected to a (k+1)-th circuit of the first to n-th register circuits, and a (k−1)-th circuit of the first to n-th digital data latch circuits; the letters n, m and k denote a natural number; and the k is smaller than or equal to n.