Advanced Picture Quality Controls; Setting Black Level - BenQ Home Entertainment Series User Manual

In the pictures below, the black portions are inactive areas and the white portions are active areas.
1. Anamorphic: (displayed as
"ANA" on the remote
control) Scales an image so
that it is displayed in the
center of the screen with a
16:9 aspect ratio.
2. 4:3: Scales an image so that it
is displayed in the center of
the screen with a 4:3 aspect
ratio.
3. Letterbox: (displayed as "LB"
on the remote control)
Enlarges an image with
letterbox format to display it
in full-screen format with a
16:9 aspect ratio. The upper
and lower portions of the image are cropped.
The Anamorphic setting stretches and resizes linearly, except that it treats the vertical and horizontal dimensions
independently. It stretches the height of the source image until it reaches the full projected height, and stretches
the width of the source image until it reaches the full projected width. This may alter the projected aspect,
depending upon the original aspect of the source image. Anamorphic is most suitable for images which are
already in a 16:9 aspect, like high definition TV, as it displays them without aspect alteration.
The 4:3 setting is most suitable for 4:3 images like standard definition TV and 4:3 aspect DVD movies, as it
displays them without aspect alteration.
The Letterbox setting resizes an image proportionately both vertically and horizontally from the width of a 4:3
aspect to the width of a 16:9 aspect and centers it on-screen. This produces an image greater in height than can be
displayed, so part of the image is lost (not displayed) along the top and bottom edges of the projection. This is
suitable for the display of movies which are presented in letterbox format (with black bars top and bottom).
The Wide setting stretches the image horizontally in a non-linear manner, that is, the edges of the image are
stretched more than the centre of the image, to prevent distortion of the central part of the image. This is suitable
for occasions where you want to stretch the width of a 4:3 aspect image to the width of a 16:9 aspect screen. It
does not alter the height. Some widescreen movies have been produced with their width squashed down to the
width of a 4:3 aspect, and are best viewed when restretched back to their original width using the Wide setting.
The Real setting displays the image in a one-to-one pixel mapping without alteration or resize in the centre of the
projection. This is most suitable for use with PC and RGBHD source inputs.

Advanced picture quality controls

There are more advanced user-definable functions in the Picture--Advanced menu.
All settings in the Picture--Advanced menu will take effect right away and be saved to the picture mode
that you select.

Setting black level

1. Go to the Picture--Advanced menu and highlight Black Level.
2. Press Left or Right to select 0 IRE or 7.5 IRE.
The grayscale video signal is measured in IRE units. In some areas which use NTSC TV standard, the grayscale is
measured from 7.5 IRE (black) to 100 IRE (white); however, in other areas which use PAL equipment or Japanese
NTSC standard, the grayscale is measured from 0 IRE (black) to 100 IRE (white). We suggest that you check the
input source if it is with 0 IRE or 7.5 IRE, then select accordingly.
30 Using the projector
All manuals and user guides at all-guides.com
4. Wide: A 4:3 aspect ratio image is enlarged
NON-linearly in horizontal direction to
accommodate 16:9 full-screen display. This
stretches only the right and left sides of the
image; the central part is unchanged.
5. Real: One-to-one mapping is performed on the
input signal without any scaling with the image
displayed at the center of the screen.