Pixel, stereoscopic image display device, and driving method thereof

A pixel comprising:

• an organic light emitting diode;
• a first transistor for transmitting a driving current corresponding to a stored data voltage to the organic light emitting diode;
• a second transistor for transmitting a data voltage, which corresponds to a data signal having a view point that is different from that of a previous data signal that corresponds to the stored data voltage, in response to a scan signal;
• a sustain capacitor for storing the data voltage corresponding to the data signal;
• a storage capacitor for storing the stored data voltage, which corresponds to the data voltage then stored by the sustain capacitor, for light emission in a corresponding sub-frame;
• a third transistor for applying a reference voltage to a first electrode of the storage capacitor;
• a fourth transistor for initializing the stored data voltage with an initialization voltage applied to a second node to which a gate electrode of the first transistor and a second electrode of the storage capacitor are coupled;
• a fifth transistor for transmitting the data voltage from the sustain capacitor to the storage capacitor;
• a sixth transistor coupled between the gate electrode and a drain electrode of the first transistor for compensating a threshold voltage by diode-connecting the first transistor;
• a seventh transistor for applying a driving power voltage of a high level to the first electrode of the storage capacitor while the organic light emitting diode emits light;
• and
• an eight transistor for transmitting the driving current to the organic light emitting diode for light emission while a next sub-frame's data voltage is written to the sustain capacitor via the second transistor.

A method for driving a stereoscopic image display device comprising a plurality of pixels coupled to corresponding scan lines, initialization control lines, compensation control lines, emission control lines, and data lines and for emitting light according to stored data voltages during corresponding sub-frames of a corresponding frame, the method comprising:

• initializing the stored data voltages, which correspond to a previous sub-frame of a previous frame, in the pixels to initialization voltages in response to an initialization control signal transmitted through the initialization control lines;
• changing the stored data voltages in a storage capacitor of each pixel to correspond to first image data signals, the first image data signals being written in a previous sub-frame for light emission in the corresponding sub-frame, and compensating for a threshold voltage of a driving transistor of each pixel in response to a compensation control signal transmitted through the compensation control lines;
• writing second data voltages corresponding to second image data signals, of which a view point is different from that of the first image data signals, to sustain capacitors of the pixels in response to scan signals sequentially applied along a plurality of pixel lines;
• and
• emitting light with a driving current corresponding to the stored data voltage corresponding to the first image data signals from the pixels in response to an emission control signal transmitted through the emission control lines.