Display device

1. A display device comprising a display panel for driving a plurality of pixels, each of the plurality of pixels comprising:

a light-emitting element;

a driving transistor for controlling a driving current flowing through the light-emitting element;

a first transistor for selectively applying a data voltage to a first node, the first node being a source electrode of the driving transistor;

a second transistor for receiving an emission signal from an emission control line to selectively apply a driving voltage to the first node;

a third transistor for selectively connecting a second node with a third node, the second node being a drain electrode of the driving transistor, the third node being an anode electrode of the light-emitting element;

a fourth transistor for selectively applying a first initialization voltage from a first initialization voltage line to the third node;

a fifth transistor for selectively applying a second initialization voltage from a second initialization voltage line to a fourth node, the fourth node being a gate electrode of the driving transistor;

a sixth transistor for selectively connecting the second node with the fourth node; and

a first capacitor directly connected between the first node and the emission control line.

2. The display device of claim 1 , wherein the second transistor and the third transistor are turned on in response to the emission signal having a first voltage level, and

wherein the fourth transistor is turned on in response to the emission signal having a second voltage level that is higher than the first voltage level.

3. The display device of claim 1 , wherein the driving transistor comprises an active layer comprising a first material, and

wherein the fourth transistor comprises an active layer comprising a second material different from the first material.

4. The display device of claim 1 , wherein each of the driving transistor and the fourth transistor comprises an active layer comprising a first material, and

wherein each of the fifth and sixth transistors comprises an active layer comprising a second material different from the first material.

5. A display device comprising a display panel for driving a plurality of pixels, each of the plurality of pixels comprising:

a light-emitting element;

a driving transistor for controlling a driving current flowing through the light-emitting element;

a first transistor for selectively applying a data voltage to a first node, the first node being a source electrode of the driving transistor;

a second transistor for receiving an emission signal from an emission control line to selectively apply a driving voltage to the first node; and

a first capacitor connected between the first node and the emission control line,

wherein the display panel comprises:

a first active layer on a substrate and comprising a first material;

a first gate layer on the first active layer;

a second gate layer on the first gate layer;

a second active layer on the second gate layer and comprising a second material different from the first material;

a third gate layer on the second active layer; and

a first source-drain layer on the third gate layer.

6. The display device of claim 5 , wherein a first electrode of the first capacitor is in the first gate layer, and

wherein a second electrode of the first capacitor is in the second gate layer.

7. The display device of claim 6 , wherein the display panel further comprises a first connection electrode, and

wherein the first connection electrode is in the first source-drain layer, is connected to the second electrode of the first capacitor through a first contact opening, and is connected to the first node through a second contact opening, the first node also being a drain electrode of the second transistor.

8. The display device of claim 6 , wherein the emission control line comprises:

a first emission control line in the first gate layer; and

a second emission control line in the third gate layer, and

wherein the first electrode of the first capacitor is a part of the first emission control line that overlaps the second electrode.

9. The display device of claim 5 , wherein a first electrode of the first capacitor is in the third gate layer, and

wherein a second electrode of the first capacitor is in the first source-drain layer.

10. The display device of claim 9 , wherein the display panel further comprises a first connection electrode, and

wherein the first connection electrode is in the first source-drain layer and is connected to the first node through a first contact opening, the first node also being a drain electrode of the second transistor.

11. The display device of claim 9 , wherein the emission control line comprises:

a first emission control line in the first gate layer; and

a second emission control line in the third gate layer, and

wherein the first electrode of the first capacitor is a part of the second emission control line that overlaps the second electrode.

12. The display device of claim 5 , wherein a first electrode of the first capacitor is in the first gate layer, and

wherein a second electrode of the first capacitor is in the second active layer.

13. The display device of claim 12 , wherein the display panel further comprises a first connection electrode, and

wherein the first connection electrode is in the first source-drain layer, is connected to the second electrode of the first capacitor through a first contact opening, and is connected to the first node through a second contact opening, the first node also being a drain electrode of the second transistor.

14. The display device of claim 12 , wherein the emission control line comprises:

a first emission control line in the first gate layer; and

a second emission control line in the third gate layer, and

wherein the first electrode of the first capacitor is a part of the first emission control line that overlaps the second electrode.

15. A display device comprising a display panel for driving a plurality of pixels, each of the plurality of pixels comprising:

a light-emitting element;

a driving transistor for controlling a driving current flowing through the light-emitting element;

a first transistor for selectively applying a data voltage to a first node, the first node being a source electrode of the driving transistor;

a second transistor for receiving an emission signal from an emission control line to selectively apply a driving voltage to the first node;

a third transistor for receiving the emission signal to selectively connect a second node with a third node, the second node being a drain electrode of the driving transistor, the third node being an anode electrode of the light-emitting element; and

a first capacitor connected between the second node and the emission control line, the first capacitor being configured to store a difference in voltage between the emission control line and the second node.

16. The display device of claim 15 , wherein each of the plurality of pixels further comprises:

a fourth transistor for selectively applying a first initialization voltage to the third node;

a fifth transistor for selectively applying a second initialization voltage to a fourth node, the fourth node being a gate electrode of the driving transistor; and

a sixth transistor for selectively connecting the second node with the fourth node.

17. The display device of claim 16 , wherein the second transistor and the third transistor are turned on in response to the emission signal having a first voltage level, and

wherein the fourth transistor is turned on in response to the emission signal having a second voltage level that is higher than the first voltage level.

18. The display device of claim 16 , wherein each of the driving transistor and the fourth transistor comprises an active layer comprising a first material, and

wherein each of the fifth and sixth transistors comprises an active layer comprising a second material different from the first material.