Electroluminescence display

An electroluminescence display, comprising:

• a substrate including a plurality of a light emission regions, and first circuit regions and second circuit regions disposed at respective sides of the light emission regions;
• power supply lines, a sensing line and data lines arranged along a row direction and extending along a column direction outside the light emission regions;
• a semiconductor layer disposed on a buffer layer covering the power supply lines, the sensing line and the data lines to expose a portion of the power supply lines, sensing line and data lines;
• scan lines, branch lines and thin film transistors disposed on a gate insulating layer covering the semiconductor layer to expose a portion of the semiconductor layer, and disposed in the first and second circuit regions;
• color filters disposed to correspond to the light emission regions on a passivation layer covering the scan lines, the branch lines and the thin film transistors;
• and
• organic light emitting diodes disposed on an overcoat layer covering the color filters, each of the organic light emitting diodes being connected to one of the transistors via a contact hole passing through the overcoat layer and the passivation layer.