Contrast ratio – Panasonic PT-D7700U User Manual
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Incorporating Panasonic exclusive technology, the
Dynamic Iris opens and closes with exceptional speed
and precision as the input signal changes, resulting in
accurate, real-time control of the light striking the
DLP
™
chips. The Dynamic Iris is positioned immedi-
ately after the light synthesizer and before the inte-
grator, so it has minimal adverse effect on the overall
light uniformity across the screen.
Competitor A
Blacks and other dark portions are
washed out.
Dynamic Iris: Deeper Blacks, Brighter
Whites, and Vivid, True-to-Life Color
Competitor B
Thanks to functions such as lamp power
switching, the blacks are not washed out.
The white portions, however, become dim
and dull.
Dynamic Iris and Dynamic Gamma
Dynamic Iris quickly fine-tunes the lamp
output with 256-step precision. Dynamic
Gamma preserves the brightness in
bright portions, helping maintain a wide
dynamic range.
Lamp
Lamp
Dynamic Iris
T
o faithfully reproduce vivid images with both
bright and dark areas—the moon in a night
sky, penguins in the snow, patterned animals
on a grassy plain— you need a projector with high
brightness and high contrast. Panasonic’s solution: the
PT-D7700U Series.
Featuring Texas Instruments DLP
™
technology and SXGA+ resolution
(1,400 x 1,050), the PT-D7700U Series delivers outstanding 7,000-
lumen brightness and 4,000:1 contrast.*
A number of breakthrough Panasonic technologies make this per-
formance possible. Our Dynamic Iris, for example, improves contrast
by precisely matching the lamp output to the input signal. Working
together with our liquid-cooled optical engine, the Dynamic Iris
helps produce images with astonishing definition.
The PT-D7700U Series also incorporates improvements in reliability
and durability. Allowing extended-time operation, these models let
you enjoy the superior image quality provided by DLP
™
technology
in a wide range of operating environments.
With superior brightness, image quality, reliability and extended-
time usability, PT-D7700U Series meets a host of applications in
auditoriums, conference rooms, control centers and other facilities.
* With the Dynamic Iris set to 3.
4,000:1
Contrast Ratio
Experience the Difference—
Vivid Colors and
Richer Blacks
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