Light emitting display device
A light emitting display device includes: a light emitting element including an anode connected to a first line; a first transistor; a second transistor including a first electrode connected to a data line, and a second electrode connected to a gate electrode of the first transistor; a third transistor including a first electrode connected to the first line, and a second electrode connected to a first electrode of the first transistor; a fourth transistor including a second electrode connected to the gate electrode; a sixth transistor including a first electrode connected to a second electrode of the first transistor, and a second electrode connected to a second line; a first capacitor including a first electrode connected to the gate electrode and a second electrode connected to the second electrode of the first transistor; and a second capacitor including a second electrode connected to the second electrode of the first transistor.
1. A light emitting display device comprising:
a light emitting element including a cathode, and an anode connected to a first driving voltage line;
a first transistor including a gate electrode, a first electrode, and a second electrode;
a second transistor including a gate electrode, a first electrode connected to a data line, and a second electrode directly connected to the gate electrode of the first transistor;
a third transistor including a gate electrode, a first electrode connected to the first driving voltage line, and a second electrode connected to the first electrode of the first transistor;
a fourth transistor including a gate electrode, a first electrode connected to a reference voltage line, and a second electrode connected to the gate electrode of the first transistor;
a sixth transistor including a gate electrode, a first electrode connected to the second electrode of the first transistor, and a second electrode connected to a second driving voltage line;
a first capacitor including a first electrode connected to the gate electrode of the first transistor and a second electrode connected to the second electrode of the first transistor; and
a second capacitor including a first electrode and a second electrode connected to the second electrode of the first transistor.
2. The light emitting display device of claim 1 , further comprising a fifth transistor including a gate electrode, a first electrode connected to the cathode of the light emitting element, and a second electrode connected to the first electrode of the first transistor.
3. The light emitting display device of claim 2 , wherein
the second electrode of the second capacitor is connected to the first electrode of the sixth transistor and the second electrode of the first capacitor.
4. The light emitting display device of claim 3 , wherein
the first electrode of the second capacitor is connected to the first driving voltage line or the second driving voltage line, or is applied with one of a sustain voltage, a reference voltage, a hold voltage, and a ground voltage.
5. The light emitting display device of claim 2 , wherein:
the gate electrode of the second transistor is connected to a first scan line;
the gate electrode of the third transistor is connected to a second scan line;
the gate electrode of the fourth transistor is connected to a third scan line;
the gate electrode of the fifth transistor is connected to a first light emitting signal line; and
the gate electrode of the sixth transistor is connected to a second light emitting signal line.
6. The light emitting display device of claim 5 , further comprising
a seventh transistor including a gate electrode, a first electrode connected to the first driving voltage line, and a second electrode connected to the first electrode of the fifth transistor.
7. A light emitting display device comprising:
a light emitting element including a cathode, and an anode connected to a first driving voltage line;
a first transistor including a gate electrode, a first electrode, and a second electrode;
a second transistor including a gate electrode, a first electrode connected to a data line, and a second electrode connected to the gate electrode of the first transistor;
a third transistor including a gate electrode, a first electrode connected to the first driving voltage line, and a second electrode connected to the first electrode of the first transistor;
a fourth transistor including a gate electrode, a first electrode connected to a reference voltage line, and a second electrode connected to the gate electrode of the first transistor;
a fifth transistor including a gate electrode, a first electrode connected to the cathode of the light emitting element, and a second electrode connected to the first electrode of the first transistor;
a sixth transistor including a gate electrode, a first electrode connected to the second electrode of the first transistor, and a second electrode connected to a second driving voltage line;
a first capacitor including a first electrode connected to the gate electrode of the first transistor and a second electrode connected to the second electrode of the first transistor; and
a second capacitor including a first electrode and a second electrode connected to the second electrode of the first transistor,
wherein:
the gate electrode of the second transistor is connected to a first scan line;
the gate electrode of the third transistor is connected to a second scan line;
the gate electrode of the fourth transistor is connected to a third scan line;
the gate electrode of the fifth transistor is connected to a first light emitting signal line;
the gate electrode of the sixth transistor is connected to a second light emitting signal line;
in a light emitting period, a gate-on voltage of the fifth transistor is applied to the first light emitting signal line, and a gate-on voltage of the sixth transistor is applied to the second light emitting signal line;
in an initialization period, a gate-on voltage of the fourth transistor is applied to the third scan line, and the gate-on voltage of the sixth transistor is applied to the second light emitting signal line;
in a compensation period, a gate-on voltage of the third transistor is applied to the second scan line, and the gate-on voltage of the fourth transistor is applied to the third scan line; and
in a writing period, a gate-on voltage of the second transistor is applied to the first scan line.
8. The light emitting display device of claim 7 , wherein:
the light emitting period, the initialization period, the compensation period, and the writing period are sequentially repeated;
the second light emitting signal line has a time duration when a gate-off voltage of the sixth transistor is applied thereto between a time duration when the gate-on voltage of the sixth transistor is applied thereto in the light emitting period and a time duration when the gate-on voltage of the sixth transistor is applied thereto in the initialization period; and
the third scan line continuously applies the gate-on voltage of the fourth transistor in the initialization period and the compensation period.
9. A light emitting display device, comprising:
a light emitting element including a cathode, and an anode connected to a first driving voltage line;
a first transistor including a gate electrode, a first electrode, and a second electrode;
a second transistor including a gate electrode, a first electrode connected to a data line, and a second electrode connected to the gate electrode of the first transistor;
a third transistor including a gate electrode, a first electrode connected to the first driving voltage line, and a second electrode connected to the first electrode of the first transistor;
a fourth transistor including a gate electrode, a first electrode connected to a reference voltage line, and a second electrode connected to the gate electrode of the first transistor;
a fifth transistor including a gate electrode, a first electrode connected to the cathode of the light emitting element, and a second electrode connected to the first electrode of the first transistor;
a sixth transistor including a gate electrode, a first electrode connected to the second electrode of the first transistor, and a second electrode connected to a second driving voltage line;
a seventh transistor including a gate electrode, a first electrode connected to the first driving voltage line, and a second electrode connected to the first electrode of the fifth transistor;
a first capacitor including a first electrode connected to the gate electrode of the first transistor and a second electrode connected to the second electrode of the first transistor; and
a second capacitor including a first electrode and a second electrode connected to the second electrode of the first transistor,
wherein:
the gate electrode of the second transistor is connected to a first scan line;
the gate electrode of the third transistor is connected to a second scan line;
the gate electrode of the fourth transistor is connected to a third scan line;
the gate electrode of the fifth transistor is connected to a first light emitting signal line;
the gate electrode of the sixth transistor is connected to a second light emitting signal line; and
the gate electrode of the seventh transistor is connected to the second scan line.