Patent ID: 7705821

Claim:
A driving method of a method of a display device comprising: dividing each of a first frame period and a second frame period into m groups, with each of the m groups having a first period and a second period, wherein m is natural number not less than 2; in the first frame period, writing a first video signal in a first memory area of a first memory in the first period of at least one of the m groups using a controller, wherein the first video signal is stored in a second memory; in the first frame period, reading a second video signal from a second memory area of the first memory in the second period of at least one of the m groups using the controller, wherein the second video signal is written in a third memory; in the second frame period, reading the first video signal from the first memory area of the first memory in the second period of at least one of the m groups using the controller, wherein the first video signal is written in the third memory; and in the second frame period, writing a third video signal in the second memory area of the first memory in the first period of at least one of the m groups using the controller, wherein the third video signal is stored in the second memory, wherein, in the first frame period, only writing of the first video signal is performed in the first memory area and only reading of the second video signal is performed in the second memory area, wherein, in the second frame period, only reading of the first video signal is performed in the first memory area and only writing of the third video signal is performed in the second memory area, wherein the first video signal or the third video signal stored in the second memory is written in the first memory in the first period of at least one of the m groups, and wherein the first video signal or the second video signal stored in the first memory is written in the third memory in the second period of at least one of the m groups.