Pixel structure of organic light emitting device

A pixel structure of an organic light emitting device, comprising:

• a first scan line and a second scan line;
• a data line, crossed to the first scan line and the second scan line;
• a reference signal line;
• an emission signal line;
• a common gate electrode, and a common drain electrode, the common drain electrode being electrically connected to the reference signal line;
• and
• a first pixel unit and a second pixel unit, each of the first pixel unit and the second pixel unit electrically connected to the first scan line, the second scan line, the data line, the emission signal line and the reference signal line, wherein each of the first pixel unit and the second pixel unit comprises:
• a first thin film transistor including a first gate electrode, a first source electrode, and a first drain electrode, wherein:
• the first gate electrode of the first pixel unit, the first gate electrode of the second pixel unit and the common gate electrode are all electrically connected with the first scan line;
• and
• both of the first drain electrode of the first pixel unit and the first drain electrode of the second pixel unit are electrically connected with the reference signal line through the common drain electrode.