The D-ILA® (Digital Direct
Drive Image Light Amplifier) technology that JVC has
developed is based on an innovation in microchip design
that permits the viewer to enjoy the full range of
benefits from any high quality source whether from a
video deck or a computer device. For true HDTV
performance, the D-ILA® technology packs 2048
x 1536 pixels -a total of 3.2 million pixels- on a
single 1.3" chip. This makes possible display of HD
images at full-spec resolution of 1920 x 1080 -with room
to spare.
The D-ILA®'s innovative CMOS
design is the key to reproducing all the details in a
high-definition picture. By placing the matrix
addressing switches and electronics right behind (not
between) the light-modulating liquid crystal layer, JVC
has created a D-ILA® chip with a
"3-dimensional" layout. The result is a 93% fill factor
and virtual elimination of the annoying "grid" or
"screen door effect" so evident in other fixed matrix
display technologies.
What is
the end result? Images as smooth and natural as film
with impeccable reproduction of all the details and
information contained in the original source. What
supports this high picture quality is high brightness,
high resolution, high contrast and analog gradation.
High brightness and high resolution are achieved using a
reflective device with a high aperture ratio and
high-density pixels, providing real resolution with
invisible pixels. High contrast is achieved using
vertical alignment liquid crystals of normally black
operation and a high-precision optical system. Analog
gradation makes it possible to reproduce dark areas with
high S/N (signal-to-noise ratio) because the D-ILA®
device has an S-shape response. In combination with the
high-speed response of the vertical alignment liquid
crystal, JVC's D-ILA® technology makes it
possible to reproduce smooth, noiseless motion pictures
with clear, sharp high definition and film-like picture
quality.
Comparison between conventional prjectors and D-ILA projectors
The secret behind the exquisite, film-like picture
quality with 15,000 - 20,000:1 native contrast ratio lies in the
innovative D-ILA® device technology, the optical engine and the fact the
JVC DLA-HD1 or DreamBee projector does not rely on iris control.
Conventional front projectors use an iris control to boost contrast
ratio. With such projectors, picture resolution may be excellent, but
the picture lacks good contrast. Here you can see the difference between
a conventional projector with iris control and JVC DLA-HD1 or DreamBee.
Newly developed 0.7-inch full HD D-ILA device
Conventional D-ILA® devices suffer from surface unevenness,
minute gaps and irregularities that are unavoidable using normal
semiconductor manufacturing processes. Discontinuities between
individual pixel cells or where the pixel cells are connected
with the underlying semiconductor structure disturb the
orientation of the liquid crystals, and the resulting
diffraction and other effects lead to stray light. In the
manufacture of this newly developed device, technology has been
adopted to ensure extreme planarization; this reduces to an
absolute minimum such stray light.
Moreover, as a result of employing new liquid crystal materials
and orientation technologies, the gap between pixel cells has
been optimised, reducing it from the previous 3.2 microns to 2.3
microns, cutting light loss from the liquid crystal layer
itself, and significantly improving compensation accuracy. Such
new technologies have realized the extremely high device
contrast ratio of 20,000:1, and at the same time halved response
time from 8msec (Tr+Td) to 4msec.
Professional-standard greyscale performance
JVC original D-ILA® pulse drive produces clear,
high-precision gradations without employing error diffusion.
High-precision calibration technology enables the faithful reproduction
of dark pictures, in which luminance is 10% or less, so that the blacks
can still be differentiated, thus resulting in pictures with appreciable
texture.
New optical engine with wire-grid polarizers
Using a conventional PBS (Polarizing Beam Splitter),
comprised of a glass prism with multilayer interference film, optical
properties can vary considerably depending on the angle of the incident
light beam; this makes it difficult to realise high contrast.
However, the wire grid design employed for JVC newly developed optical
engine uses an inorganic reflective polarizing plate made from a glass
substrate on the surface of which are ultra-fine aluminium ribs. This
reduces to an absolute minimum the amount of stray light reaching the
lens. The combination of this polarizer with the newly developed D-ILA®
device increases contrast by a factor of 5.
GF9351 video processor from Gennum Corporation
The
GF9351 video processor made by Gennum Corporation ensures the faithful
reproduction of high-quality images thanks to a high-precision scaling
function and four VXP™ technologies -- FineEdge™, FidelityEngine™,
TruMotionHD and RealityExpansion™.
Four VXP™ Technologies:
FineEdge™
Edge correction technology that gets rid of the jaggy artifacts that
can affect diagonal lines, creating instead smooth outlines.
FidelityEngine™
Imaging technology that improves detail while reducing noise. This
technology ensures a clear, detailed picture even when using video
sources with lower resolutions.
TruMotionHD™
De-interlacing technology that supports HD signals (1080i),
converting them to high-quality 1080p signals for playback.
RealityExpansion™
10-bit image processing technology. This technology can upsample
4:2:2 (Y:Cb:Cr) video signals to the 4:4:4 format; it delivers
outstanding image processing at a level comparable to that of
broadcast masters.
* VXP and Visual Excellence
Processing are trademarks of Gennum Corporation.
HI-FI STEREO
The D-ILA® (Digital Direct
Drive Image Light Amplifier) technology that JVC has
developed is based on an innovation in microchip design
that permits the viewer to enjoy the full range of
benefits from any high quality source whether from a
video deck or a computer device. For true HDTV
performance, the D-ILA® technology packs 2048
x 1536 pixels -a total of 3.2 million pixels- on a
single 1.3" chip. This makes possible display of HD
images at full-spec resolution of 1920 x 1080 -with room
to spare.
Conventional D-ILA® devices suffer from surface unevenness,
minute gaps and irregularities that are unavoidable using normal
semiconductor manufacturing processes. Discontinuities between
individual pixel cells or where the pixel cells are connected
with the underlying semiconductor structure disturb the
orientation of the liquid crystals, and the resulting
diffraction and other effects lead to stray light. In the
manufacture of this newly developed device, technology has been
adopted to ensure extreme planarization; this reduces to an
absolute minimum such stray light.
JVC original D-ILA® pulse drive produces clear,
high-precision gradations without employing error diffusion.
High-precision calibration technology enables the faithful reproduction
of dark pictures, in which luminance is 10% or less, so that the blacks
can still be differentiated, thus resulting in pictures with appreciable
texture.
