Organic light emitting display device and a method of manufacturing the same

An organic light emitting display device and a method of manufacturing the same are disclosed. The organic light emitting device includes an organic light emitting diode including an anode and a cathode, a driving transistor including a first semiconductor layer, wherein the driving transistor is electrically connected to the anode of the organic light emitting diode, and a control transistor including a second semiconductor layer including a different material from the first semiconductor layer and configured to control the driving transistor. The first semiconductor layer includes a first channel part, and first and second contact parts, and the second semiconductor layer includes a second channel part, and third and fourth contact parts. One of the first and second contact parts directly contacts one of the third and fourth contact parts. 公开了种有机发光显示装置及其制造方法。所述有机发光显示装置包括：有机发光二极管，包括阳极和阴极；驱动晶体管，包括第半导体层，其中，驱动晶体管电连接到有机发光二极管的阳极；控制晶体管，包括包含与第半导体层不同的材料的第二半导体层，并被构造为控制驱动晶体管。第半导体层包括第沟道部以及第接触部和第二接触部，第二半导体层包括第二沟道部以及第三接触