Display apparatus comprising color accuracy enhancement transistor or brightness boosting transistor

A display apparatus, comprising:

• a plurality of pixels, each of the plurality of pixels including:
• an organic light emitting diode;
• a first transistor providing a driving current to operate the organic light emitting diode;
• a second transistor including a gate electrode that receives a first scan signal, a first electrode that receives a data signal, and a second electrode electrically connected to a first electrode of the first transistor;
• and
• a brightness boosting transistor that applies a second back bias voltage to the first transistor in response to a brightness boosting signal.

A display apparatus, comprising:

• a base substrate;
• a back bias electrode on the base substrate;
• a first transistor including a first active pattern overlapping the back bias electrode and a first gate electrode overlapping the first active pattern;
• a first electrode electrically connected to the first transistor;
• a second electrode facing the first electrode;
• a light emitting layer disposed between the first electrode and the second electrode;
• a color accuracy enhancement transistor electrically connected to the back bias electrode;
• and
• a brightness boosting transistor electrically connected to the back bias electrode.