D-Ila Method; What Is The D-Ila Multimedia Projector - JVC DLA-G20 Sales Manual

D-ILA method

The "D-ILA method" is a method of picture projection that uses JVC's original
"D-ILA device". Based on JVC's ILA ® projector which has more than a 40% share of
the professional large-screen projector market, the "D-ILA device" offers the same
basic performance in a more compact, lighter, and less expensive design.
The projector incorporating this "D-ILA device" is the "D-ILA multimedia
projector".
"D-ILA" stands for Direct drive Image Light Amplifier.
Just as an audio amplifier amplifies sound, the D-ILA device amplifies light to
produce a picture.
This technology is applicable not only to front projection, but also such
applications as an engine section for the rear-projection system.
• The "D-ILA device" was originally developed and is manufactured by JVC.
The D-ILA device is a high-density element with 1365 x 1024 pixels packed
onto a small 0.9" (diagonal, 4:3) chip. Because it is so dense, this device is
able to achieve a high aperture ratio (93%) that ensures that light from the lamp
is utilized at top efficiency.
Gaps between pixels are extraordinarily small, making possible a high aperture
ratio.
Pixel
multimedia projector lineup
DLA-G20
DLA-S15
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The D-ILA method reflects the light from the lamp and uses it to produce
a picture. Because the light use efficiency is so high, the device can be
called a "light amplifier".
PBS
D-ILA device
(Polarized Beam Splitter)
Projection lens
Input signal
Screen
Lamp
What is the
D-ILA multimedia projector?
D-ILA eliminates the trade-off between the high brightness
and high resolution.
The D-ILA multimedia projector is able to project a clear, bright, high-resolution
image onto a large screen. Vivid images can be achieved even in a bright room.
Bright large screen
● High-brightness projection
The D-ILA device is coupled with a newly developed
520 W xenon lamp to enable powerful light output of
2000 ANSI lumens.
● High-quality large-screen projection
Powerful light output of 2000 ANSI lumens ensures
superb large-screen projection images on the
recommended 300" (diagonal, 4:3) and max 521"
(diagonal, 4:3) screens.
High picture quality
● High-precision projection
The D-ILA device provides high resolution of 1365 x
1024 pixels, enabling S-XGA images to be projected
without compression or loss of quality. Horizontal
resolution of 1000 TV lines (4:3) is achieved and
pictures are clear and sharp, making it ideal for
high-definition TV and personal computer images.
With the ADPC (Adaptive Digital Pixel Conversion)
circuit, resized pictures from various sources can be
reproduced naturally with high picture quality.
● Natural color reproduction
A xenon lamp is used because the color balance of the
light it emits is close to natural light. A high-
performance color decomposition/composition mecha-
nism is also used to ensure natural color reproduction.
● Excellent gradation reproduction performance
Superior reproduction of dark areas as well as light
areas is essential for top projector performance. The
D-ILA multimedia projector's high contrast of 350:1
allows it to accurately reproduce all gradations from
light to dark.
D-ILA Method Present Condition and Subject
Convenience
● Compatible with various video signal formats
Computer signals of up to 1280 x 1024 dots and
horizontal sync frequency of 82 kHz can be projected.
Built-in multi-scanning enables one projector to project
not only TV and video signals but also HDTV, personal
computer and workstation signals. The 5:4/4:3/16:9
aspect ratio is automatically switched according to the
projection source. (Manual mode can also be selected
with some models.)
● Flexible installation
Using the powered zoom lens, the screen size and
throw distance can be adjusted to suit the distance and
position of the screen. This versatile lightweight
projector can also be suspended from a ceiling with
the dedicated hanging metal fittings. The left-right and
up-down inversion function allows rear projection (a
rear-projection model with 1:1 wide lens is available).
● Various convenient functions
Wired computerized remote control is possible via the
control connector (RS-232C). 19 picture characteristic
presets are provided, allowing picture characteristics to
be adjusted independently to suit the video source.
(When more than one video source with the same or
similar sync frequency is used, independent adjust-
ment may not be possible.)
Lamps can be replaced by the user, so maintenance is
easy.
• D-ILA is a trademark of Victor Company of Japan,
Limited.
• The specifications of the DLA-G20 are shown.
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