Display device using a simultaneous light emitting method and driving method thereof

A display device comprising:

• a first area including first pixels coupled to first scan lines and data lines, each of the first pixels coupled to a corresponding first scan line among the first scan lines and a corresponding data line among the data lines;
• and
• a second area including second pixels coupled to second scan lines and the data lines, each of the second pixels being coupled to a corresponding second scan line among the second scan lines and a corresponding data line among the data lines,
• wherein the first scan lines and the second scan lines are different from each other so that the first area and the second area are not overlapped,
• wherein each of the first pixels and the second pixels includes a first transistor including a gate electrode coupled to a first node, a first electrode, and a second electrode directly coupled to a second node,
• wherein the first electrode of the first transistor of each of the first pixels is directly coupled to a first power line,
• wherein the first electrode of the first transistor of each of the second pixels is directly coupled to a second power line,
• wherein the first power line and the second power line are different from each other,
• wherein emission start times and emission end times of the first pixels and the second pixels are synchronized,
• wherein voltage levels of the first power line and the second power line are different from each other in a period between the emission start times and the emission end times, and
• wherein each of the first pixels and the second pixels further includes a light emitting diode including an anode directly coupled to the second node and a cathode coupled to a third power line.

A method for driving a display device,

• wherein the display device includes:
• a first area including first pixels coupled to first scan lines and data lines, each of the first pixels being coupled to a corresponding first scan line among the first scan lines and a corresponding data line among the data lines, and including a first light emitting diode having a cathode coupled to a first power line;
• and
• a second area including second pixels coupled to second scan lines and the data lines, each of the second pixels being coupled to a corresponding second scan line among the second scan lines and the corresponding data line among the data lines, and including a second light emitting diode having a cathode coupled to a second power line,
• wherein the first scan lines and the second scan lines are different from each other so that the first area and the second area are not overlapped,
• wherein the method comprises:
• decreasing voltages of the first power line and the second power line at substantially the same time;
• and
• increasing the voltages of the first power line and the second power line at substantially the same time, and
• wherein, in the decreasing, a voltage applied to the first power line is greater than that applied to the second power line.