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to fair, at best, with a 480i HDMI input.
Here it clearly stumbled on some of my
standard tests for jagged edges.

The problem appears to originate in

the JVC’s 480i-to-480p
deinterlacing. To check for
this, I fed the projector the
same material in 480p
HDMI from a Toshiba HD-
XA2 HD DVD player. The
latter is equipped with a Sil-
icon Optix HQV REON
processor, which we know
to have outstanding 480i-to-
480p deinterlacing. The re-
sult: all of my jagged edge
tests now looked flawless on
the JVC.

This result suggests you

should avoid feeding the
JVC a 480i HDMI source.
Why the projector’s deinter-
lacing of 480i-to-480p is
better in component than in
HDMI remains a mystery.
But it is. Fortunately, I can’t
think of a compelling reason
to use an HDMI source at
480i. 

The JVC de-interlaced

1080i program material
(both film and video) di-
rectly to 1080p, as it should.
But it did not recognize 3/2
pulldown in a 1080i film
source. While the latter lim-
itation was quite visible in
test patterns, I never saw any
evidence of it with real
1080i program material. 

Most of the criticism of past LCD and

LCoS projectors has focused on their
blacks, with good reason. But the LCD
and LCoS projectors I’ve reviewed be-
fore have also had a tendency to look a
little faded on bright scenes as well,
which reduced their punch and dimen-
sionality. This effect is subtle on the best
of these projectors, but never completely
absent. Many of these displays were
equipped with auto irises. 

I noted this in my Short Take report

on the JVC as well, but I also observed
that the JVC suffered less from this bright
scene fading than most LCD and LCoS

designs I’ve seen, even those
that like the JVC don’t use
an iris. A dynamic iris can
greatly improve the depth of
a projector’s blacks in dark
scenes, but once it opens up
on a bright scene you’re left
largely with the naked, na-
tive contrast of the imaging
chip and light engine. 

While such fading isn’t

entirely absent in this new
JVC design, I have found it
to be more and more diffi-
cult to spot, particularly
since the Sharp XV-Z20000
DLP was sent back to its
maker and the opportunity
for additional A/B compar-
isons thereby eliminated. I
saw it rarely before; now it
doesn’t bother me at all.
While some bright scenes
initially looked a bit more
saturated and three-dimen-
sional on the Sharp com-
pared to the JVC, I now find
that the JVC’s image, partic-
ularly on good high-defini-
tion material, offers plenty of
depth and dimensionality. 

The JVC is very quiet in

its Normal lamp mode, and
only slightly louder in High.
It’s not as quiet as the Sony
Pearl or Mitsubishi HC5000,

but quieter than the Sharp XV-Z20000.
Its noise is also pitched fairly low, making
it less intrusive than the usual high fre-
quency, rushing air sound.

While I didn’t use the JVC’s Dynamic

Noise Reduction for serious viewing
and testing, it was very effective. At a set-
ting of 11 out of 30 it virtually elimi-
nated some annoying grain/noise in the
standard DVD transfer of 

Star Trek:  Insur-

rection

. It made the image far more

watchable, and did 

not

make it soft. Each

increased step in NR is subtle, making it
a very effective tool for improving mar-
ginal transfers. 

I noted earlier that when the JVC re-

ceives a 1080p/24 source, such as the na-
tive video from a Blu-ray Disc, it
quadruples it to a frame rate of 96fps and
displays it without the usual motion jud-
der of 3/2 pulldown present in 24fps,
film-based material displayed in video
format at 1080p/60. In theory this
should result in smoother motion. And
that’s just what I saw. But the improve-
ment is not immediately obvious; 3/2
pulldown judder is something we’ve all
lived with so long that most of us can
tune it out. It’s nearly impossible to spot
on rapid motion. But if you look care-
fully you’ll see improved smoothness in
slow pans, zooms, and the sort of leisurely
motion that hides motion blur in displays
prone to it. 

While I did see some very subtle mo-

tion blur in fine details moving across the
screen, I see the same effect from DLPs.
The only modern display technology
that can do better on this (sometimes) is
plasma. 

While the subjective color of the JVC

was excellent, some of its primary (red,
green, and blue) and secondary colors
(yellow, cyan, and magenta) were a little
oversaturated. Green glowed too brightly
on sunlit foliage. Red was also a little in-
tense, though unlike green, a bit too
much fire in the reds can often be pleas-
ing—provided that flesh tones look
right. And the JVC’s post-calibrated flesh
tones were just fine, as long as the pro-
gram source allowed them to be (there’s
a lot of color processing going on in
today’s films). 

The color temperature was reasonably

accurate in the Middle Color Temp. set-
ting, but minor tweaking in the user
controls (with appropriate calibration
tools, of course) produced an even better
and more accurate result. But it did take
different settings for the best results in
each of the two lamp modes. Fortunately,

ultimate

AV

Содержание DLA-HD1

Страница 1: ...layed This has ad vantages LCD can be used in either flat panel displays with a backlight or in front or rear projection applications using a miniaturized imaging chip and a lamp as a light source But LCD also has disad vantages A major downside is increased spacing between the pixels a require ment to accommodate the near micro scopic wiring needed to pass signals to those imaging elements This s...

Страница 2: ... controls are located on the top of the case but every control you ll need is also available on JVC s well de signed remote The remote offers direct input selection and direct access to a number of frequently used functions in cluding Brightness Contrast Color Sharpness and six different Image Pro files Cinema Natural Dynamic and User 1 2 and 3 While the video adjust ments are global across all in...

Страница 3: ...ording to JVC it quadruples the frame rate to 96fps The HD1 s Gennum GF9351 scaling dein terlacing chip doubles the 24fps input to 48fps the 48fps to 96fps step is added elsewhere in the projector s video pro cessing downstream of the Gennum This eliminates the need for 3 2 pull down with 1080p 24 sources The only consumer sources of 1080p 24 material at present are the out puts of a few not all B...

Страница 4: ...image partic ularly on good high defini tion material offers plenty of depth and dimensionality The JVC is very quiet in its Normal lamp mode and only slightly louder in High It s not as quiet as the Sony Pearl or Mitsubishi HC5000 but quieter than the Sharp XV Z20000 Its noise is also pitched fairly low making it less intrusive than the usual high fre quency rushing air sound While I didn t use t...

Страница 5: ...resolution a bit of edge enhance ment was added The 480i p responses were essentially the same as component With the Mask control off the overscan was zero on all sides in 720p or 1080i HDMI or component In 480i p it ranged between 2 and 3 The JVC s color points were typical of most new digital projectors and short of ideal Red and blue were a little oversaturated green was very oversaturated Whil...

Страница 6: ...o on different scenes But at a shade over half the price of the Sharp the deep black and contrast ratio performance of the JVC can only be de scribed as amazing On most program material I also found the JVC to be a hair sharper than the Sharp This was surprising because while both projectors clearly responded to the 37 1MHz video burst on my Ac cuPel test pattern generator tested in HDMI the respo...

Страница 7: ... bringing out subtle slightly brighter highlights in most dark scenes This is almost certainly due to the brightness compression in the Sony s dy namic iris When the iris closes down on dark scenes it also chokes off these high lights a bit too not enough to compro mise the picture significantly but enough to limit the way in which those high lights can enhance a scene And third the JVC s image wa...

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