Panasonic QuintrixF TX-28PM1D Operating Instructions Manual page 12

ASPECT CONTROLS
14:9
14:9 will display a true 14:9 picture with no
aspect distortions.
Just
Use this mode when you wish to expand a 4:3
picture to fill the whole screen (rather than
watching a programme with black stripes down
the left and right sides of the picture). The 4:3
picture will be stretched horizontally so that the
image fills the screen, this is done in such a way
that the stretching is only obvious at the left and
right edges of the screen.
4:3
4:3 will display a 4:3 picture at its standard 4:3
size with no aspect distortions.
Zoom1
Zoom1 will display 16:9 letterbox or 4:3 pictures
with no aspect distortions
Zoom2
Zoom2 will display 16:9 anamorphic letterbox
pictures as a full screen display with no aspect
distortions
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14:9
<< >>
14:9
Just
<< >>
Just
4:3
<< >>
4:3
Zoom1
<< >>
Zoom 1
Zoom2
<< >>
Zoom 2