Organic light-emitting diode display and manufacturing method thereof

A method for manufacturing an organic light-emitting diode display comprising:

• sequentially depositing a first gate insulating layer, a first gate metal layer, a second gate insulating layer, and a second gate metal layer over a substrate;
• etching the first gate metal layer and second gate metal layer with a first half-tone mask to concurrently form a scan line, a first storage electrode, and an initialization voltage line;
• forming an interlayer insulating layer over the initialization voltage line and the second gate insulating layer;
• forming a data line, a first driving voltage line, and a second storage electrode over the interlayer insulating layer;
• forming a passivation layer over the data line, the first driving voltage line,and the second storage electrode;
• and
• forming an OLED over the passivation layer, wherein a portion of the initialization voltage line formed over the scan line is formed having substantially the same pattern as the scan line and exposes at least a first portion of the scan line in the peripheral area.

An organic light-emitting diode (OLED) display, comprising:

• a substrate;
• a driving voltage line formed over the substrate and configured to provide a driving voltage;
• a storage capacitor including a first storage electrode and a second storage electrode overlapping the first storage electrode, wherein the second storage electrode extends from the driving voltage line;
• a driving transistor electrically connected to a data line and the driving voltage line and including a driving gate electrode, wherein the first storage electrode and the driving gate electrode are integrally formed;
• and
• an OLED electrically connected to the driving transistor and including a pixel electrode,
• wherein the driving voltage line includes a first driving voltage line and a second driving voltage line formed over the first driving voltage line, and wherein the second driving voltage line is formed on the same layer as the pixel electrode.