Will the new JVC LX-NZ3 be native 4K?

So, fake 4K
I already have that

Meh....I'm sure this will excite some, but nothing I'm in the market for. Looks like manual lens controls as well.....sweet.

Toe said:

Meh....I'm sure this will excite some, but nothing I'm in the market for. Looks like manual lens controls as well.....sweet.

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BUT but but it is laser and DLP. That is all that some seem to care about.

jake51 said:

It says so in the specifications for the laser projector that is to be released at the end of the year
But maybe it's fake 4K?
https://www.avforums.com/news/jvc-announces-lx-nz3-4k-laser-projector.16504

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Article says 0.47” DMD which is a DLP. It won’t be true 4K, won’t be D-ILA, and won’t have anywhere near the contrast of any of the JVC pjs for the past 10 years. The lasers pretty cool, wish they’d bring it to the NX series.

jake51 said:

So, fake 4K
I already have that

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This is a tough one. It's not really fake 4K either. It produces 3840x2160 unique addressable pixels unlike any other e-shift type technology. DLP doesn't display all 3 colors (Red green blue) on screen at the same time either. It quickly flashes through them with a color wheel yet no one calls those fake color.

Most pixel shifting tech isn't the same as this. Eshift and epson's copycat shifting don't produce 4K worth of addressable pixels. The 0.66 version claims it does, but it's not a multiple of 4 and its still just pixel shifting 2 way so while it's better than e-shift, its still not what I'd consider true 4K. But anything that uses the 0.47 DMD chip I consider close enough to true 4K as they have a full 3840x2160 pixels that make up the whole image and something like 4K desktop looks 4K like. The only negative from this vs Sony/JVC true 4K panels is the pixels are larger on the 0.47 chip so it's got some level of overlap.

Frank714 said:

Here is the official JVC press release: http://pro.jvc.com/pro/pr/2019/consumer/LX-NZ3_release.html


... and I feel compelled to add an image of the (black version) LX-NZ3:

In addition I think that this part of the press release deserves special attention:

1. Dynamic light source control achieves high image quality and  : 1 contrast

With mechanical apertures, there is some delay when adjusting light output, but JVC’s laser light source can control light output instantaneously, so dynamic brightness adjustment is possible with little or no delay. By controlling the output of the laser according to the brightness of the scene, the LX-NZ3 can reproduce images closer to reality. Moreover, when a complete black signal is input, contrast of : 1 can be achieved by controlling the laser output.


Should be very interesting to see what native or dynamic contrast JVC will be able to get out of the 0.47" DMD.


The Xiaomi UST laser projector supposedly yielded a dynamic contrast of 2,548:1 with the 0.47" DMD, in the hands of an able projector manufacturer like JVC it might even get higher.

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The new JVC has typical 1,000:1 native, just like all the rest of the XPR DLP's, not using Christie's technology.

Mike Garrett said:

The new JVC has typical 1,000:1 native, just like all the rest of the XPR DLP's, not using Christie's technology.

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https://www.avsforum.com/forum/24-d...t-worse-than-5-years-ago-23.html#post58502546


Then apparently there is an over-emphasis on "native" contrast, if the native contrast deficiences are overcome by the use of laser technology, enabling laser-dimming and yielding a better "dynamic" contrast which IMHO is all that counts at the end of the day and our home theaters.


Frankly, I haven't been aware of the DLP contrast improvement capabilities because of dynamic laser-dimming and somehow feel that comparing such a laser-based XPR DLP projector with the mass of bulb-based XPR DLP projectors is then more like comparing apples and oranges...

Frank714 said:

https://www.avsforum.com/forum/24-d...t-worse-than-5-years-ago-23.html#post58502546


Then apparently there is an over-emphasis on "native" contrast, if the native contrast deficiences are overcome by the use of laser technology, enabling laser-dimming and yielding a better "dynamic" contrast which IMHO is all that counts at the end of the day and our home theaters.


Frankly, I haven't been aware of the DLP contrast improvement capabilities because of dynamic laser-dimming and somehow feel that comparing such a laser-based XPR DLP projector with the mass of bulb-based XPR DLP projectors is then more like comparing apples and oranges...

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Then you have missed a ton of discussion in the forums. Because of laser dynamic dimming, measurement technique has changed. Now days, you measure a laser projector with a single pixel lit in the corner, so that you can get the native contrast of the projector. Also dynamic is not all that matters, because with one single lit pixel, it all goes away and you are back to native contrast.

Mike Garrett said:

Then you have missed a ton of discussion in the forums. Because of laser dynamic dimming, measurement technique has changed. Now days, you measure a laser projector with a single pixel lit in the corner, so that you can get the native contrast of the projector. Also dynamic is not all that matters, because with one single lit pixel, it all goes away and you are back to native contrast.

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I'm sorry but this is wrong, but probably not what you really meant to say. With 1 lit pixel you avoid going into full black mode where the unit shuts off the laser. Taking a dynamic contrast measurement when the laser is off on black yields that BS infinity to 1 measurement that no one buys into. So putting one pixel on the screen gets you a realistic dynamic contrast measurement not a native contrast measurement. Native contrast measurement requires disabling the dimming system entirely and repeating the test. One pixel being lit on the screen definitely does not make it "all go away" and you still can get some pretty deep blacks with 1 pixel lit due to dynamic laser dimming. At least with JVC.

JVC's laser dimming algorithm is quite aggressive at least on the RS4500 so if they applied any of that to the DLP laser, they may get some crazy high dynamic numbers for DLP like 10K:1.

markmon1 said:

I'm sorry but this is wrong, but probably not what you really meant to say. With 1 lit pixel you avoid going into full black mode where the unit shuts off the laser. Taking a dynamic contrast measurement when the laser is off on black yields that BS infinity to 1 measurement that no one buys into. So putting one pixel on the screen gets you a realistic dynamic contrast measurement not a native contrast measurement. Native contrast measurement requires disabling the dimming system entirely and repeating the test. One pixel being lit on the screen definitely does not make it "all go away" and you still can get some pretty deep blacks with 1 pixel lit due to dynamic laser dimming. At least with JVC.

JVC's laser dimming algorithm is quite aggressive at least on the RS4500 so if they applied any of that to the DLP laser, they may get some crazy high dynamic numbers for DLP like 10K:1.

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You are right, I was thinking about how it all goes away for native contrast.

JVC themselves have said this projector is aimed at media room / living rooms for folks that use projectors as a TV replacement.


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markmon1 said:

But anything that uses the 0.47 DMD chip I consider close enough to true 4K as they have a full 3840x2160 pixels that make up the whole image and something like 4K desktop looks 4K like. The only negative from this vs Sony/JVC true 4K panels is the pixels are larger on the 0.47 chip so it's got some level of overlap.

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Have you seen how it looks in real life? I mean the individual pixels are FullHD-size, can it look something like 4K desktop looks? I haven't seen these, just wondering...

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Mike Garrett said:

BUT but but it is laser and DLP. That is all that some seem to care about.

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Craig Peer said:

JVC themselves have said this projector is aimed at media room / living rooms for folks that use projectors as a TV replacement.


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If you and Mike are telling us this about this JVC, that's good enough for me. Really, I wasn't interested in this prospect to begin with, so no sour grapes chapter taken from an Aesop fable here.

Aztar35 said:

If you and Mike are telling us this about this JVC, that's good enough for me. Really, I wasn't interested in this prospect to begin with, so no sour grapes chapter taken from an Aesop fable here.

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My comment was a joke.
This projector should be a good DLP projector. It will have the negative of low native contrast like all XPR DLP's, but on the positive side it will be able to perform full fade to black, and have JVC's good HDR tone mapping. Also laser light source. I forgot to ask about color space, so will follow up with JVC on this. But this should be a good DLP sample. One issue the UH1 had was a lot of light scatter around the image. JVC said they have eliminated this problem with this new model.

Mike Garrett said:

My comment was a joke.
This projector should be a good DLP projector. It will have the negative of low native contrast like all XPR DLP's, but on the positive side it will be able to perform full fade to black, and have JVC's good HDR tone mapping. Also laser light source. I forgot to ask about color space, so will follow up with JVC on this. But this should be a good DLP sample. One issue the UH1 had was a lot of light scatter around the image. JVC said they have eliminated this problem with this new model.

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I understand...I think you both were just suggesting not to expected something like the contrast on the Lcos line.

Aztar35 said:

I understand...I think you both were just suggesting not to expected something like the contrast on the Lcos line.

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Correct. It’s DLP and while JVC is good, they can’t perform miracles.


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JVC knows projectors. I am pretty sure this unit will be the best of its breed. They can't work miracles but it should work very well in certain rooms.