Patent ID: 7561139

Claim:
A driving method of a semiconductor device comprising a first line memory comprising a first memory and a second memory, and a second line memory comprising a third memory and a fourth memory comprising the steps of: storing signals in the first line memory, wherein the a part of signals are stored in the first memory, and another part of the signals are stored in the second memory; and transmitting signals stored in the second line memory when storing signals in the first line memory, wherein a part of the signals stored in the third memory are transmitted sequentially, and another part of the signals stored in the fourth memory are transmitted sequentially; and wherein the part of the signals stored in the third memory and the another part of the signals stored in the fourth memory are transmitted simultaneously, wherein the first line memory and the second line memory carry out storing the signals and transmitting the signals, alternatively, and wherein a clock frequency at storing the signals in the first line memory is higher than a clock frequency at transmitting the signals stored in the second line memory.