BenQ DV3251, Руководство пользователя

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Reference 41
Eng
lish
Aspect ratio behaviour
According to the signal sources connected to the display, the input video images may have
different native aspect ratios. Aspect ratio refers to the ratio between the length and width of the
video image. For example, standard definition TV video images have a 4:3 native aspect ratio,
while HDTV video images have a 16:9 native aspect ratio.
Your display is a digital display device that is capable of displaying video images in various
aspect ratios regardless of their native aspect ratios. Please refer to the descriptions below for the
selectable aspect ratios of the display and the resultant video images.
The Real, Letter Box and Wide options are unavailable when PC or DVI (via the HDMI input) is the
signal source.
16:9
No matter what the aspect of the image source, resizes the image
linearly
and
non-
proportionately to fit the full 16:9 screen. This may alter the resultant displayed image aspect,
depending upon the aspect of the image source.
'16:9' is most suitable for images which are already in a 16:9 aspect, like HDTV, as it displays
them without any aspect alteration. This differs from the 'Wide' aspect setting (described below)
in that '16:9' uses linear image resizing, whereas 'Wide' uses non-linear resizing.
4:3
Resizes the image linearly and non-proportionately to a 4:3 aspect ratio, no matter what the
aspect of the image source. In this mode, only an area of 1024 x 768 pixels in the center of the
screen is used to display images.
'4:3' is most suitable for images which are already in a 4:3 aspect, like standard definition TV, as
it displays them without any aspect alteration. However, on this 16:9 aspect screen, there will be
Original (source) video image Resultant (displayed) video image
4:3 aspect ratio video image
Letterboxed video image
16:9 aspect ratio video image
Original (source) video image Resultant (displayed) video image
4:3 aspect ratio video image
Letterboxed video image
16:9 aspect ratio video image
DV3251-En.book Page 41 Monday, December 12, 2005 4:07 PM