Abstract: A display device includes a unit structure including a first pixel region and a second pixel region. A first pixel is disposed in the first pixel region, and including a first sub-pixel that emits light of a first color, a second sub-pixel that emits light of a second color, and a third sub-pixel that emits light of a third color. A second pixel is disposed in the second pixel region, and includes the first sub-pixel, the second sub-pixel, and the third sub-pixel. In the unit structure, the first type of pixel circuit and the second type of pixel circuit are arranged alternately, and the first type of pixel circuit and the second type of pixel circuit have symmetrical shapes.

Abstract: A display device employs first scan signals having a turn-on level that determines when pixels receive data voltages and second scan signals having a turn-on level that determines times for initializing anode voltages of light emitting elements in the pixels. An active period in a frame period is from a time when the pixels receive an initial first scan signal at the turn-on level to when the pixels receive a last first scan signal of the turn-on level. A blank period in the frame period is from when the pixels receive the last first scan signal at the last turn-on level to when the pixels receive an initial first scan signal of the turn-on level during a next frame period. The blank period is at least as long as a cycle in which each of the pixels receives the second scan signals at the turn-on level.

Abstract: A display device employs first scan signals having a turn-on level that determines when pixels receive data voltages and second scan signals having a turn-on level that determines times for initializing anode voltages of light emitting elements in the pixels. An active period in a frame period is from a time when the pixels receive an initial first scan signal at the turn-on level to when the pixels receive a last first scan signal of the turn-on level. A blank period in the frame period is from when the pixels receive the last first scan signal at the last turn-on level to when the pixels receive an initial first scan signal of the turn-on level during a next frame period. The blank period is at least as long as a cycle in which each of the pixels receives the second scan signals at the turn-on level.

Abstract: A method and an apparatus for outputting an audio signal are provided. The apparatus includes a power source; a compensator for compensating an input signal by adding the input signal to an offset value reciprocally proportional to a source voltage; a pulse width modulator for modulating an audio signal transmitted from the compensator; and an output stage for outputting the modulated audio signal. Accordingly, audio quality can be improved directly for a listener by compensating the input signal damaged by periodical voltage drops.