Organic light-emitting display apparatus
An organic light-emitting display apparatus including an organic light-emitting diode emitting visible light, a driving thin film transistor driving the organic light-emitting diode, and a compensation thin film transistor. The compensation thin film transistor includes a compensation gate electrode, a compensation semiconductor layer, a compensation source electrode, and a compensation drain electrode. The compensation gate electrode includes a first gate electrode, and a second gate electrode electrically connected to the first gate electrode. The compensation drain electrode is electrically connected to the driving gate electrode of the driving thin film transistor. The compensation semiconductor layer includes a first semiconductor region overlapping the first gate electrode and a second semiconductor region overlapping the second gate electrode and disposed further from the compensation drain electrode than the first semiconductor region, and an area of the first semiconductor region is different than an area of the second semiconductor region.
1 . A display apparatus, comprising:
a first driving transistor in a first pixel circuit;
a second driving transistor in a second pixel circuit adjacent to the first pixel circuit in a first direction; and
a driving voltage line extended in a second direction different from the first direction, and
wherein the driving voltage line is between the first pixel circuit and the second pixel circuit, and the first driving transistor and the second driving transistor are symmetrical to each other with respect to the driving voltage line.
2 . The apparatus of claim 1 , wherein the first pixel circuit and the second pixel circuit share the driving voltage line, the driving voltage line being connected to the first driving transistor and the second driving transistor.
3 . The apparatus of claim 1 , further comprising:
a first compensation transistor in the first pixel circuit;
a first conductive member connected to a semiconductor layer of the first compensation transistor and a gate electrode of the first driving transistor;
a second compensation transistor in the second pixel circuit; and
a second conductive member connected to a semiconductor layer of the second compensation transistor and a gate electrode of the second driving transistor.
4 . The apparatus of claim 3 , wherein the first conductive member and the second conductive member are symmetrical to each other with respect to the driving voltage line.
5 . The apparatus of claim 3 , further comprising:
a first scanning line extended in the first direction, and
wherein the first scanning line overlaps the semiconductor layer of the first compensation transistor twice and overlaps the semiconductor layer of the second compensation transistor twice.
6 . The apparatus of claim 3 , wherein a size of a first overlapping area and a size of a second overlapping area of the first scanning line and the semiconductor layer of the first compensation transistor are different each other.
7 . The apparatus of claim 3 , further comprising:
a first electrode overlapping a semiconductor layer of the first driving transistor;
a second electrode overlapping a semiconductor layer of the second driving transistor; and
a third electrode overlapping the first electrode and the second electrode.
8 . The apparatus of claim 7 , wherein the driving voltage line is connected to a central portion of the third electrode.
9 . The apparatus of claim 7 , wherein an opening of the first electrode overlaps an end of the first conductive member and an opening of the second electrode overlaps an end of the second conductive member, in a plan view.
10 . The apparatus of claim 7 , wherein the first conductive member is connected to the first electrode in the first pixel circuit, and the second conductive member is connected to the second electrode in the second pixel circuit.
11 . The apparatus of claim 1 , further comprising:
a first initialization transistor in the first pixel circuit;
a first conductive member connected to a semiconductor layer of the first initialization transistor and a gate electrode of the first driving transistor;
a second initialization transistor in the second pixel circuit; and
a second conductive member connected to a semiconductor layer of the second initialization transistor and a gate electrode of the second driving transistor.
12 . The apparatus of claim 11 , further comprising:
a second scanning line extended in the first direction, and
wherein the second scanning line overlaps the semiconductor layer of the first initialization transistor at least twice and overlaps the semiconductor layer of the second initialization transistor at least twice.
13 . The apparatus of claim 5 , further comprising:
a first switching transistor in the first pixel circuit;
a second switching transistor in the second pixel circuit;
a first data line extended in the second direction and connected to the first switching transistor; and
a second data line extended in the second direction and connected to the second switching transistor, and
wherein the driving voltage line is between the first data line and the second data line in a plan view.
14 . The apparatus of claim 13 , wherein the first scanning line overlaps a semiconductor layer of the first switching transistor and overlaps a semiconductor layer of the second switching transistor.
15 . The apparatus of claim 14 , wherein the first data line is between the first conductive member and the driving voltage line, and the second data line is between the second conductive member and the driving voltage line, in a plan view.
16 . The apparatus of claim 1 , further comprising:
a first emission control transistor in the first pixel circuit;
a second emission control transistor in the second pixel circuit;
a control line extended in the first direction, the control line being connected to a gate of the first emission control transistor and a gate of the second emission control transistor; and
wherein the driving voltage line is connected to a first end of a semiconductor layer of the first emission control transistor and a first end of a semiconductor layer of the second emission control transistor.
17 . A display apparatus, comprising:
a first pixel circuit;
a second pixel circuit adjacent to the first pixel circuit in a first direction; and
a driving voltage line extended in a second direction different from the first direction, and
wherein the first pixel circuit and the second pixel circuit share the driving voltage line which is located in a boundary of the first pixel circuit and the second pixel circuit, and
wherein the first pixel circuit and the second pixel circuit are symmetrical to each other with respect to the driving voltage line.
18 . The apparatus of claim 17 , wherein each of the first pixel circuit and the second pixel circuit comprises
a driving transistor;
a compensation transistor; and
a conductive member connecting a semiconductor layer of the compensation transistor and a gate electrode of the driving transistor, and
wherein the conductive member in the first pixel circuit and the conductive member in the second pixel circuit are symmetrical to each other with respect to the driving voltage line.
19 . The apparatus of claim 17 , further comprising:
a first electrode overlapping a semiconductor layer of the driving transistor in the first pixel circuit;
a second electrode overlapping a semiconductor layer of the driving transistor in the second pixel circuit; and
a third electrode overlapping the first electrode and the second electrode, and
wherein the driving voltage line is connected to a central portion of the third electrode.
20 . The apparatus of claim 17 , each of the first pixel circuit and the second pixel circuit further comprising:
an emission control transistor; and
a control line extended in the first direction, the control line being connected to a gate of the emission control transistor; and
wherein a semiconductor layer of the emission control transistor in the first pixel circuit and a semiconductor layer of the emission control transistor in second pixel circuit are connected, and
wherein the driving voltage line overlaps the semiconductor layer of the emission control transistor in the first pixel circuit and overlaps the semiconductor layer of the emission control transistor in the second pixel circuit.