Organic light-emitting diode (OLED) display

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

• a thin film transistor comprising an active layer, a gate electrode, a source electrode, and a drain electrode;
• a first insulating layer formed at least between the active layer and the gate electrode;
• a second insulating layer formed at least between the gate, source, and drain electrodes;
• a third insulating layer covering the source and drain electrodes, wherein an opening is defined in each of the second and third insulating layers and wherein the openings substantially overlap;
• a pixel electrode formed in the openings defined in the second and third insulating layers and comprising a semi-permeable metal layer;
• a pixel defining layer formed only in the opening defined in the third insulating layer, wherein the pixel defining layer is formed to cover ends of the pixel electrode;
• an intermediate layer formed over the pixel electrode and comprising an organic light-emitting layer;
• and
• an opposite electrode formed over the intermediate layer and comprising a reflective material.