An organic light-emitting display device is discussed, which reduces the area of a pixel drive circuit and increases the aperture ratio of a pixel by forming lines inside the pixel using a semiconductor pattern that forms a channel of each thin-film transistor array. The light-emitting display device includes a plurality of pixels arranged in a matrix form and a plurality of lines configured to supply a signal for driving each pixel, each pixel includes a thin-film transistor including an active layer having a first area and a second area, which are configured as conductors, and a gate electrode, and at least one of the first area and the second area is directly connected to a corresponding line among the lines.