Progressive Scanning. Progressive scanning is the latest in technologies for displaying or transmitting moving images. With 1080p projectors each line of the picture is drawn in sequence resulting in a superior picture. This is also called de-interlacing.
A projectors de-interlacing performance. Although all 1080p projectors operate in a de-interlaced mode
This format is the standard used in television and computers, 4:3 is the relationship between the projection and across the top.
This format is used for projecting film with a DVD player, 16:9 i tshe relationship between the projection and across the top. Also known as the Wide Screen.
The aspect ratio for HDTV is 16:9 or 1.78:1. This means that for every 16 inches of horizontal screen, there are 9 inches of vertical screen, compared to the much squarer analogue TV ratio of 4:3 or 1.