Interlaced

A type of video display where the image is drawn in an alternating pattern.  The odd lines are drawn first, and then the even lines are drawn.  See also, progressive. On a typical display, this alternating pattern occurs 30 times a second, so it can cause the display to flicker.  Interlaced video was developed so that only half an image has to be transmitted at a time, saving bandwidth.  Standard televisions are interlaced.  Most computer monitors and HDTV's are non-interlaced.