Extron electronics IN1404 User Manual page 17

Expand:
left
Most DVDs and VCRs and other video source output a signal with an aspect ratio of 4:3. How this
signal is filled with active video information determines its aspect ratio. In the following four
examples, four different input aspect ratios are shown on the left as they would be displayed in their
native 4:3 format. The same signals are shown on the right as they would appear on 4:3 and 16:9
display devices with the scaler set to various aspect ratio settings.
Example 1:
Example 2
Designed for wide screen (letterbox) signals viewed on 4:3 aspect ratio
displays. Expand mode zooms in on the center of the image and crops the
image vertically and horizontally so that the black bars above and below the
image are removed. In this mode, some image is also lost on the right and
hand edges.
IN1404 User's Manual 15