A display is conducted by using a time gray-scale system, in which one frame period is divided into a plurality of sub-frame periods, and a voltage applied to an EL element of a pixel is varied on a sub-frame period basis. Because of this, a display device is provided in which the fluctuations in brightness...http://www.google.de/patents/US20050017933?utm_source=gb-gplus-sharePatent US20050017933 - Display device and method of driving the same
