Electrophoretic display device employing organic thin film transistors, driving method for driving circuits of the electrophoretic display device, and electronic apparatus including the electrophoretic display device

1. A display device comprising:

a pixel electrode and a counter electrode facing each other;

a plurality of charged particles disposed between the pixel electrode and the counter electrode;

an organic transistor electrically connected to the pixel electrode;

a data line electrically connected to the pixel electrode via the organic transistor;

a data line driving circuit supplying an image signal to the pixel electrode through the data line;

a scan line electrically connected to the pixel electrode via the organic transistor;

a scan line driving circuit supplying a scan signal to the organic transistor through the scan line; and

a counter electrode driving circuit supplying a counter electrode driving signal containing first and second pulse signals to the counter electrode, wherein

the first and second pulse signals have the same polarity as the image signal,

the counter electrode driving circuit supplies the first and second pulse signals to the counter electrode during a supplying period in which the scan line driving circuit supplies one of the scan signal, and

first and second pulse widths of the first and second pulse signals, respectively, are larger than an interval period between the first pulse signal and the second pulse signal.

2. The display device according to claim 1 , wherein the image signal has an amplitude that is the same as that of the first and second pulse signals.

3. The display device according to claim 1 , wherein the scan line driving circuit scans the scan line a plurality of times during a period of one frame.

4. An electronic apparatus comprising the display device according to claim 1 .

5. A driving method of a display device in which a plurality of charged electrophoresis particles are disposed between a plurality of pixel electrodes and a counter electrode and in which an image is displayed by moving the charged electrophoresis particles by electric field formed between the plurality of pixel electrodes and the counter electrode, comprising:

supplying an image signal to first and second pixel electrodes of the plurality of pixel electrodes via first and second organic transistors, respectively;

supplying a scan signal to the first and second organic transistors; and

supplying a counter electrode driving signal containing first and second pulse signals to the counter electrode while supplying the image signal to the plurality of pixel electrodes, wherein

the first and second pulse signals have the same polarity as the image signal,

the counter electrode driving circuit supplies the first and second pulse signals to the counter electrode during a supplying period in which one of the scan signal is supplied,

first and second pulse widths of the first and second pulse signals, respectively, are larger than an interval period between the first pulse signal and the second pulse signal,

when first organic transistor is an OFF state and when the second organic transistor is an ON state, the electric field applied to the charged electrophoresis particles, which are disposed between the second pixel electrode and the counter electrode, is in a first direction from the second pixel electrode to the counter electrode during the interval period, and

when first organic transistor is an OFF state and when the second organic transistor is an ON state, the electric field applied to the charged electrophoresis particles, which are disposed between the first pixel electrode and the counter electrode, is in a second direction from the counter electrode to the first pixel electrode during the supplying period, and the first direction and the second direction are opposite to each other.

6. The driving method of a display device according to claim 5 , wherein

the image signal has an amplitude that is the same as that of the first and second pulse signals.