Organic light emitting display device

Abstract

Disclosed is an organic light emitting display device including: a substrate; a first transistor including a polycrystal semiconductor pattern on the substrate, a first gate electrode overlapping the polycrystal semiconductor pattern, a first source-drain electrode contacting the polycrystal semiconductor pattern; a buffer layer positioned on the first gate electrode; a second transistor including an oxide semiconductor pattern on the buffer layer, a second gate electrode overlapping the oxide semiconductor pattern, a second source-drain electrode contacting the oxide semiconductor pattern; a light blocking pattern overlapping the oxide semiconductor pattern; and a storage capacitor including a first storage capacitor electrode and a second storage capacitor electrode overlapping the first storage capacitor electrode, wherein the first storage capacitor electrode is provided on the same layer as the first gate electrode, and the second storage capacitor electrode is provided on the same layer as the light blocking pattern.

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