34
5.2.4 ASPECT RATIO
This option is used to set the image aspect ratio.
• 4:3
LetterBox
is for 4:3 LetterBox material, which is a 4:3 source, with black bars at top and bottom
and which places meaningful video data at the centre of a 16:9 area
•
16:9 LetterBox
/
1.85:1
(and
2.35:1
and
2.4:1
) are for 16:9 material (commonly described as
‘Anamorphic') which place meaningful video pictures within a 1.85/2.35/2.4:1 area (i.e. have black
borders at the top and bottom of the screen).
These settings are useful when your
Screen Shape
has a higher aspect ratio than 16:9.
• When aspect ratio is
Full Screen
, the image occupies the whole display
•
1:1 Pixel Mapping
maps the source to the display pixel by pixel, with no scaling performed by
Crystalio II
,
e.g. an NTSC DVD will be shown as 720x480 on the display
•
NLS
stands for
Non-Linear Stretch
and is used to make a 4:3 image fill a 16:9 display. It allows the
image to appear more natural than a normal stretch by avoiding excessive stretching of the more
important central area of the image. Some stretching of the image has to be performed but this is
limited mainly to the left and right edges
Custom aspect ratios can be defined by selecting
Customize
and pressing the
action button. The
OSD turns to the following page:
• A slider value of x.xx relates to an actual aspect ratio of x.xx:1. For example,
if the slider value is 1.50, it means you are setting an aspect ratio of 1.5:1
• Use the
Left/Right
arrow remote control keys to adjust the slider
• When
OK
is pressed on the remote control, the slider control is moved
to the lower left corner of the display
• Pressing
Back
on the remote control will return you to the full OSD, or simply
press the
Menu
key to exit from OSD mode
5.2.5 OVERSCAN
This option enlarges or shrinks the image.
• When overscan is larger than zero, the image is enlarged and all 4 edges are cropped
because they are outside the display area
