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DIGITAL LIGHT PROCESSING Brings A Revolution

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The origin of DLP

The first DMD chip was invented by
Larry Hornbeck in 1987. Larry, a scientist
at Texas Instruments, had been
exploring the manipulation of reflected
light since 1977. Texas Instruments
started a project to explore the commercial
viability of DMD. TI named
the new technology ‘DLP’ and a separate
group (now known as the DLP
Products Division) was formed to develop
the commercial display applications.
Texas Instruments demonstrated
prototype DLP projectors for the first
time in 1994. The new technology was
quickly recognised and in 1997, DLP
projectors were used to project films
at the Oscars, where the first 3-chip
DLP technology was revealed to the
Hollywood community. DLP cinema
was first revealed to the public with
the release of Star Wars Episode I:


How it works?

In the same way as a central processing
unit (CPU) is at the heart of a computer,
a DMD is the cornerstone of
DLP. A DLP-based projector system
includes memory and signal processing
to support a fully digital approach.


The advantages of DLP

Brighter. DLP projectors are among the
brightest available because DLP technology
brings more light from lamp
to screen, resulting in more effective
presentations—even when ambient
light is difficult to control.


DLP features

Clarity. DLP technology comes closer
than any other display solution to reproducing
the exact mirror image of
its source material. That’s why images
projected by DLP technology are always
crystal clear. The thousands of
mirrors making up the DMD at the
heart of DLP technology are spaced
less than one micron apart, resulting
in a very high ‘fill factor.’ By
minimising the gaps between pixels in
a projected image, DLP projection systems
create a seamless digital picture
that’s sharp at any size—without the
pixellation or ‘screen door’ effect apparent
in other technologies.


One chip or three?
The vast majority of DLP projectors
use a single monochrome DLP chip
and a spinning colour filter wheel to
generate colours. One-chip configurations
are normally used in consumer
grade products such as conference
room projectors and televisions. The
single-chip projector is cheaper, offers
high brightness levels and results in
smaller, more portable designs