Patent attributes
A display device includes signal supply circuit having N blocks and data supply circuit for supplying data to the N blocks. Each block includes holding block having k data holders for supply signals to k columns, and scanning circuit block for sequentially selecting the k data holders to receive data from the data supply circuit. The scanning circuit block includes k-stage shift register formed from k registers. Scanning circuit is formed by N scanning circuit blocks each arranged in one of the N blocks, and sequentially selects the N holding blocks each arranged in one of the N blocks to sequentially select the k data holders of each selected holding block to receive data. In response to output from i-th register of n-th block, the data supply circuit sets (n+1)-th block in operation-enabled state.