Pixel controlled via emission control signals during sub-periods and display device including the same

A pixel comprising:

• an organic light emitting diode;
• a first transistor configured to control an amount of driving current flowing from a first pixel power source to a second pixel power source via the organic light emitting diode, corresponding to a data signal supplied to a data line;
• a second transistor coupled between a first electrode of the first transistor and the data line;
• and
• an emission control transistor on a path of the driving current, the emission control transistor being configured to block the driving current, corresponding to an emission control signal supplied to an emission control line,
• wherein the emission control transistor is turned off for each one of sub-periods in one frame period,
• wherein the one frame period comprises a first sub-period, a second sub-period, a third sub-period, and a fourth sub-period, which are sequentially ordered,
• wherein the second transistor is turned on in the first sub-period, and is not turned on in the second, third, and fourth sub-periods, and
• wherein an off period of the emission control transistor in the third sub-period is a first length of time, and the off period of the emission control transistor in the first, second, and fourth sub-periods is a second length of time that is less than the first length of time.

A display device comprising:

• pixels coupled to scan lines, emission control lines, initialization lines, and data lines, each one of the pixels comprising an organic light emitting diode;
• a scan driver configured to supply scan signals to the pixels through the scan lines;
• an emission driver configured to supply emission control signals, for each one of sub-periods in one frame period, to the pixels through the emission control lines;
• an initialization driver configured to supply initialization signals to the pixels through the initialization lines;
• and
• a data driver configured to supply data signals to the pixels through the data lines,
• wherein the organic light emitting diode of each one of the pixels is initialized in each one of sub-periods in one frame period,
• wherein the one frame period comprises a first sub-period, a second sub-period, a third sub-period, and a fourth sub-period, which are sequentially ordered,
• wherein the scan driver is configured to supply the scan signals during the first sub-period and not during the second, third, and fourth sub-periods, and
• wherein the emission control signals in the third sub-period have a first width, and the emission control signals in the first, second, and fourth sub-periods have a second width that is less than the first width.

A pixel comprising:

• an organic light emitting diode;
• a first transistor configured to control an amount of driving current flowing from a first pixel power source to a second pixel power source via the organic light emitting diode, corresponding to a data signal supplied to a data line;
• a second transistor coupled between a first electrode of the first transistor and the data line;
• an initialization transistor configured to supply an initialization voltage to an anode electrode of the organic light emitting diode, corresponding to an initialization signal supplied to an initialization line;
• and
• an emission control transistor located on a path of the driving current, the emission control transistor being configured to block the driving current, corresponding to an emission control signal supplied to an emission control line,
• wherein the initialization transistor supplies the initialization voltage to the anode electrode of the organic light emitting diode for each one of sub-periods in one frame period,
• wherein the one frame period comprises a first sub-period, a second sub-period, a third sub-period, and a fourth sub-period, which are sequentially ordered,
• wherein the second transistor is turned on in the first sub-period, and is not turned on in the second, third, and fourth sub-periods, and
• wherein an off period of the emission control transistor in the third sub-period is a first length of time, and the off period of the emission control transistor in the first, second, and fourth sub-periods is a second length of time less that is less than the first length of time.