| 摘要 |
<p>The present invention provides a pixel structure of an organic light emitting display device and driving method thereof. The pixel structure comprises first to fifth thin film transistors, a capacitor and an OLED device, wherein a radio of width to length of the first thin film transistor is set so as to compensate a brightness loss due to the degradation of the organic light emitting display device. Following steps are performed for the pixel structure in a refresh process of each frame of images: during a pre-charging period, the scan line and a first control signal (EM) are at a low level, a second control signal (EMD) is at a high level; during a compensation period, the scan line is at a low level, the first control signal (EM) and the second control signal (EMD) are at a high level; and during a light emitting period, the scan line is at a high level, the first control signal (EM) and the second control signal (EMD) are at a low level.</p> |
