Rosen Entertainment Systems M10 - Manual (Page 17)

17
Rosen Entertainment Systems
Motion picture film and cameras, and later
television screens, were originally designed
around a screen size that was almost square - it
was one-third wider than it was high (another
way to say this is that it had a width-to-height
ratio, or aspect ratio, of 4:3. This ratio, 4:3, can
also be expressed as 1.66:1.)
When widescreen movies using technologies
like Cinemascope and Panavision became
popular, new aspect ratios were used
for them - 1.78:1, 2.35:1, and even 2.55:1.
When high-definition television was
developed, a screen shape of 16:9, or 1.85:1,
was selected as the best compromise for
viewing widescreen movie images.
When you watch widescreen movies on a
standard 4:3 television, there are “black bars”
on the top and bottom of the screen. This is
often called a “letterbox” image. The alternative
is called “pan-and-scan”, where the edges of
the image are “cropped” off.
This system uses a widescreen 16:9, or 1.85:1
display - the same aspect ratio as high-
definition televisions. This means that when
viewing widescreen DVD’s, these black bars
are either non-existent, or greatly minimized.
4:3
1.66:1
16:9
1.85:1
MANAGING BLACK BARS
Letterbox
Widescreen
ADJUSTING THE SCREEN ANGLE
The Rosen M10 uses an advanced mechanical design to hold the
screen at the perfect viewing angle for you, your passengers, and
your vehicle. Here’s how to adjust the screen angle:
.
ENTER OPEN
SOURCE
Second,
to allow the
adjuster to
move freely,
gently pull the
screen towards
you an inch or so,
and hold it there
with one hand.
Third,
while
holding the
screen, move
the adjuster
slider with
your other
hand - to the
left to move the
screen forward,
and to the right to move
the screen rearward.
Finally, let go of the screen and double-check the viewing angle.
You may need to repeat this process a few times to get the angle
just right for your height and the height of the vehicle seats.
First, press the OPEN button on the front panel,
or on the remote. The screen will deploy.