Patent ID: 8711087

Claim:
A method for driving an electrophoretic display device, which includes a first electrode, a second electrode, and an electrophoretic element disposed between the first electrode and the second electrode, the first electrode including first and second pixel electrodes, the method comprising: first driving the electrophoretic element through the first pixel electrode, which displays a first gradation with minimum reflectivity at a first temperature, by applying a first driving signal pattern for a first unit period with a first driving voltage and a first voltage application time, second driving the electrophoretic element through the second pixel electrode, which displays a second gradation with maximum reflectivity at the first temperature, by applying a second driving signal pattern for the first unit period with a second driving voltage and a second voltage application time, third driving the electrophoretic element through the first pixel electrode, which displays the first gradation at a second temperature, by applying a third driving signal pattern for a second unit period with a third driving voltage and a third voltage application time, and fourth driving the electrophoretic element through the second pixel electrode, which displays the second gradation at the second temperature, by applying a fourth driving signal pattern for the second unit period with a fourth driving voltage and a fourth voltage application time, wherein first through fourth multiplications are multiplications of the first through fourth driving voltages and the first through fourth voltage application times, respectively, the first multiplication is different from the second multiplication, and the first multiplication is different from the third multiplication or the second multiplication is different from the fourth multiplication.