A display device includes a plurality of pixel circuits formed in a matrix; a plurality of first scan lines for transmitting selection signals to select one or more of the pixel circuits; a plurality of second scan lines for transmitting emission control signals to control the duration of one or more emissions of the selected one or more pixel circuits; and a scan driver for sequentially delaying a primary signal. The primary has a pulse at a first level at about a first period for generating a plurality of secondary signals. The plurality of secondary signals are inverted for outputting the emission control signals, and a signal is generated having a pulse at a second level when at least one of the secondary signals and at least one of the emission control signals are at the first level.