Patent ID: 7330179

Claim:
A driving method for a display device having a light emitting element, a first memory, a second memory, a writing circuit, a reading circuit and a selector circuit, the method comprising the steps of: inputting a first signal into the reading circuit; inputting a second signal into the writing circuit; inputting a third signal into the selector circuit; starting to write a second video data to one of the first memory and the second memory when the first signal and the second signal are in a first state; setting the first signal and the second signal to a second state after the second video data is written to one of the first memory and the second memory; setting the second signal to the first state after a first video data is read from the other of the first memory and the second memory; changing a state of the third signal between a third state and a fourth state when the first signal is in the second state and the second signal is in the first state; and setting the first signal to the first state after changing the state of the third signal, wherein the selector circuit selects the first memory as a memory for writing and selects the second memory as a memory for reading when the third signal is the third state, and selects the second memory as the memory for writing and selects the first memory as the memory for reading when the third signal is the fourth state, and wherein light or non-light of said lighting element is controlled by a video data.