Electro-optical device, method of driving the same, and electronic apparatus
View Patent ↗An aspect of the present invention provides an electro-optical device including a plurality of scanning lines, a plurality of data lines, a plurality of power lines extending in a direction intersecting with the plurality of data lines, and a plurality of pixel circuits provided corresponding to intersections of the plurality of scanning lines and the plurality of data lines, wherein pixel circuits of the plurality of pixel circuits provided adjacent to each other along one of the plurality of data lines is coupled to one of the plurality of power lines.
1. An electro-optical device comprising:
scanning lines;
data lines;
pixels arranged in correspondence with intersections of the scanning lines and the data lines; and
first and second power source lines that supply voltage to the pixels,
the pixels each having:
a current drive-type element having a first electrode and a second electrode; and
a drive transistor that controls a current flowing through the current drive-type element, the drive transistor being connected between the first power source line and the first electrode of the current drive-type element,
the second power source line being electrically connected between the drive transistor and the first electrode,
a reference voltage being applied to the second electrode,
the current drive-type element emitting light during a first period within a one frame period by a second voltage being supplied from the first power source line, the second voltage being higher than the reference voltage,
a first voltage lower than the reference voltage being supplied from the second power source line during a second period that is after the first period within the one frame period, and
the first power source line supplying the first voltage during the second period.
2. The electro-optical device according to claim 1 , further comprising:
a first transistor that controls a current flowing to the current drive-type element, the first transistor being turned OFF during the second period.
3. The electro-optical device according to claim 2 , the first transistor turning ON during a third period of the one frame period after the second period, and
no voltage being supplied from either the first power source line or the second power source line during the third period.
4. The electro-optical device according to claim 3 , the third period immediately following the second period.
5. The electro-optical device according to claim 1 , the second power source line supplying the second voltage to another pixel leading up to the second period.
6. An electronic device comprising the electro-optical device as set forth in claim 1 .
7. An electro-optical device comprising:
scanning lines;
data lines;
pixels arranged in correspondence with intersections of the scanning lines and the data lines; and
first and second power source lines that supply voltage to the pixels;
the pixels each having:
a current drive-type element having a first electrode and a second electrode; and
a drive transistor that controls a current that flows through the current drive-type element, the drive transistor being connected between the first power source line and the first electrode of the current drive-type element,
the second power source line being electrically connected between the drive transistor and the first electrode,
a reference voltage being applied to the second electrode,
a first voltage lower than the reference voltage being supplied from the first power source line during a first period within a one frame period,
the current drive-type element emitting light during a second period that is after the first period within the one frame period by a second voltage being supplied from the first power source line, the second voltage being higher than the reference voltage, and
the second power source line supplying the first voltage during a third period of the one frame period after the second period.
8. The electro-optical device according to claim 7 , further comprising:
a first transistor that controls a current flowing to the current drive-type element, the first transistor being turned ON during the second period.
9. The electro-optical device according to claim 7 , the second power source line supplying the first voltage to another pixel during a fourth period of the one frame period that overlaps the first period and the second period.
10. The electro-optical device according to claim 7 , the second power source line supplying the first voltage during the third period of the one frame period that immediately follows the second period.
11. An electronic device comprising the electro-optical device as set forth in claim 7 .