Organic light-emitting display device having a symmetrical arrangement of driving, data, and contact lines overlapping a pixel electrode
An organic light-emitting display device includes a plurality of pixels, each of which includes an organic light-emitting device including a pixel electrode, an organic emission layer, and an opposing electrode; a pixel defining layer covering an edge of the pixel electrode and being configured to define a light-emission region by having an opening which exposes a portion of the pixel electrode; and a reference line overlapping the pixel electrode with an insulating layer between the reference line and the pixel electrode and extending in a first direction. The reference line overlaps with a center point of the opening, and the opening is shifted to one side of the pixel electrode in a second direction perpendicular to the first direction.
1. An organic light-emitting display device comprising:
a plurality of pixels, at least one of the plurality of pixels comprising an organic light-emitting device on a substrate, the organic light-emitting device comprising a pixel electrode, an organic emission layer, and an opposing electrode;
a pixel defining layer covering the pixel electrode defining a light-emission region by having an opening which exposes a portion of the pixel electrode;
a driving voltage line, a data line, and a contact line overlapping the pixel electrode; and
an insulating layer over the driving voltage line, the data line, and the contact line, the insulating layer being disposed below the pixel electrode,
wherein one of the driving voltage line, the data line, and the contact line passes through the center point of the opening as a reference line, and the remaining ones of the driving line, the data line, and the contact line are symmetrically disposed with respect to the reference line in a plan view.
2. The organic light-emitting display device of claim 1 , wherein the insulating layer has irregularities in a direction perpendicular to an upper surface of the substrate.
3. The organic light-emitting display device of claim 1 , wherein the pixel electrode has irregularities in a direction perpendicular to an upper surface of the substrate.
4. The organic light-emitting display device of claim 1 , wherein the reference line extends in a first direction in a plan view, and the opening is shifted to one side of the pixel electrode in a second direction, which is perpendicular to the first direction in the plan view.
5. The organic light-emitting display device of claim 4 , further comprising a via hole overlapping the pixel electrode,
wherein the plurality of pixels comprise a first pixel and a second pixel, the via hole of the first pixel and the via hole of the second pixel being arranged on a virtual line extending in the second direction.
6. The organic light-emitting display device of claim 1 , the driving voltage line, the data line, and the contact line are disposed on a same layer.
7. The organic light-emitting display device of claim 1 , wherein:
each of the plurality of pixels further comprises a driving thin film transistor arranged on a substrate and comprising a driving gate electrode; and
at least a portion of the pixel electrode overlaps with the driving gate electrode.
8. The organic light-emitting display device of claim 7 , wherein:
each of the plurality of pixels further comprises a storage capacitor overlapping with the driving thin film transistor and comprising a first electrode and a second electrode; and
the first electrode is integrally formed with the driving gate electrode.
9. The organic light-emitting display device of claim 8 , wherein:
the driving thin film transistor comprises a driving semiconductor layer arranged under the driving gate electrode and insulated from the driving gate electrode by a first gate insulating layer; and
a second gate insulating layer is arranged between the first electrode and the second electrode.
10. The organic light-emitting display device of claim 9 , wherein the second electrode is connected to the contact line via a contact hole.