Optoma HD151X User Manual page 37

DISPLAY
Format
Use this function to choose your desired aspect ratio.
16 : 9 screen
4:3 1440x1080 center
16:9 1920x1080 center
LBX 1920x1440 center, then get the central 1920x1080 image to display.
Native 1:1 mapping centered
Auto (Default) If this format is select, Screen type will auto become 16:9 (1920 x
1080).
If source is 4:3, auto resize to 1440 x 1080.
If source is 16:9 auto resize to 1920 x 1080.
If source is 16:10 auto resize to 1920 x 1200 and cut 1920 x 1080
area to display.
Superwide Scale to 2534 x 1426 (132% Enlarge ), then get the central
1920x1080 image to display.
Ps: End-user can use this format to see non-subtitle of 2.35:1 source
to fulfill 100% of 1080p DMD.
Edge Mask
Edge Mask function removes the noise in a video image. Overscan the
image to remove video encoding noise on the edge of video source.
Note
Each I/O has different setting of "Edge Mask".
"Edge Mask" and "Zoom" can't work at same time.
Zoom
Zoom in and out the images.
480i/p 576i/p 1080i/p 720p PC
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