Patent ID: 8044576

Claim:
An organic light emitting display (OLED) device, comprising: a substrate; a thin film transistor (TFT) disposed over the substrate, the thin film transistor containing hydrogen; a first inorganic passivation layer disposed over the thin film transistor, the first inorganic passivation layer comprising hydrogen; a second inorganic passivation layer disposed on and contacting the first inorganic passivation layer, the second inorganic passivation layer comprising hydrogen, the second inorganic passivation layer having a hydrogen content substantially higher than that of the first inorganic passivation layer, wherein the difference in the hydrogen content between the first and second inorganic passivation layers is substantially equal to a hydrogen content in the thin film transistor; and an organic light emitting pixel disposed over the second inorganic passivation layer and electrically connected to the thin film transistor, wherein the second inorganic passivation layer has a thickness between about 4,000 Å and about 6,000 Å.