ORGANIC LIGHT EMITTING DIODE DISPLAY, AND FABRICATING AND INSPECTING METHODS THEREOF

摘要

Discussed are an organic light emitting diode display which can minimize a malfunction due to an open failure caused in a fabricating process of the organic light emitting diode display using thin film transistors as control elements, and fabricating and inspecting method of the organic light emitting diode display. Accordingly, at least one contact part is further formed by forming an upper metal layer of a dual gate structure with respect to an area in which an open failure easily occurs due to a step difference on a substrate of the organic light emitting diode display, so that a signal can be normally applied even when the open failure occurs.

主权项

1. An organic light emitting diode display, comprising:
a substrate; a gate metal layer on the substrate; a gate insulating layer and an etching stop layer on the gate metal layer to expose a portion of the gate metal layer; a first source and drain metal layer on the etching stop layer; a passivation layer on the first source and drain metal layer to expose a predetermined area of the first source and drain metal layer; a second source and drain metal layer on the passivation layer being contacted with the first source and drain metal layer having the exposed predetermined area; an interlayer insulating layer having first and second contact holes through which first and second areas of the second source and drain metal layer are exposed, respectively; and an anode metal layer on the interlayer insulating layer to cover the first contact hole, the anode metal layer being extended to cover the second contact hole.