Technical Brief

EPSON Sales Training 3/01
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Technical Brief—Multimedia projectors Page 3
Image quality—Keystone correction
Many EPSON projectors provide keystone correction, which allows you to correct up to a ±20
0
tilt while
maintaining the correct aspect ratio.
3. Panel on Prism (POP):
This technology allows little or no shift between the LCD panels and the prism, which keeps the pixel alignment
precise and the image sharp and clear.
P O P T e c h n o l o g y
n o s h i f t
g l u e d
M i n i m u m m i s a l i g n m e n t
R B
G
L C D P a n e l
P r i s m
T r a d i t i o n a l T e c h n o l o g y
s h i f t
L a r g e p i x e l m i s a l i g n m e n t
Without keystone correction
With keystone correction
Set up your projector so the lens is
aligned with the bottom of the screen.
If you can't set the projector up aligned
with the screen, then the keystone
correction will correct the misalignment.