Hitachi Develops 8,000,000:1 CR Display

vtms · 09-29-07, 04:04 AM

http://techon.nikkeibp.co.jp/english...070928/139849/

Hitachi will also unveil a 1.9mm 32" LCD at CEATEC next week.
http://techon.nikkeibp.co.jp/english...070927/139803/

greenland · 09-29-07, 09:19 AM

The articles says that it is not a flat panel, and that they have no plans yet to market it.

elmalloc · 09-29-07, 09:32 AM

Cost: 1 quadruple trillion ga billion dollars

CMRA · 09-29-07, 09:36 AM

Quote:

Originally Posted by vtms

http://techon.nikkeibp.co.jp/english...070928/139849/

Hitachi will also unveil a 1.9mm 32" LCD at CEATEC next week.
http://techon.nikkeibp.co.jp/english...070927/139803/

Thanks for the heads up. Worth a look.

____ · 09-29-07, 11:00 AM

Quote:

Originally Posted by elmalloc

Cost: 1 quadruple trillion ga billion dollars

It's only a 47" lcd with 720P RP backlight, street price $2k-3k.

vtms · 09-29-07, 02:55 PM

This technology is nothing other than another example of 2-stage light modulation very similar to the one originally developed by BrightSide (projector as backlight for LC panel).

In theory, using projector as backlight is a far superior solution than using IMLEDs because:
1) BLU resolution (720p) is ~1000 times higher than even IMLED backlights. ~million dimming zones vs. ~1000.
2) Unlike IMLED backlights, projector BLU throws a color picture. (So, I imagine, no need for color filters on LC panel?)

This is basically an RP-LCD hybrid so the biggest drawback here is display thickness (30cm). Now, here's an improvement that would make this technology really exciting. Simply, use laser RP (aka laser TV) as backlight (10cm thick or less, reduced optics, energy efficient, no bulb replacements, huge color gamut).

elmalloc · 09-29-07, 03:08 PM

Quote:

Originally Posted by ____

It's only a 47" lcd with 720P RP backlight, street price $2k-3k.

New cost: Affordable

tombaker · 09-29-07, 07:27 PM

I watched an image of the Sun on this set....I think I have UV sunburn now.

Blackraven · 10-03-07, 11:17 AM

As much as I have respect for HITACHI (they do make LCD TVs that are as good as that of JVC), I cannot honestly believe how they can make such an inflated figure of 8,000,000:1 contrast ratio.

I mean, how can they make such a claim like that (even if it is just as prototype). Are they saying then that they have better CR than the Sony OLED prototype (1,000,000:1) and the Samsung LED LCD TV (500,000:1)?????

That's like already over-inflating Sony and Samsung's by a factor 8x and 16x, respectively. And mind you, is HITACHI considered to be better than Sony and/or Samsung??? You be the judge

At one time, I almost felt that it was insulting (after reading the article). I mean, if HITACHI is trying to inflate its contrast ratio numbers to gargantuan numbers (and majority of these inflated CR numbers are just MARKETING HYPE IMHO), they could have at least tried to NOT MAKE IT TOO OBVIOUS that their over-inflating it.

Better contrast ratio than any of Hitachi's current and previous-gen displays, YES.
But stating a contrast ratio number (as inflated as CR numbers generally are nowadays) that is higher than that of companies with greater marketshare, tech R&D, resources and influence, HELL NO (at least in my book).

/rant over

____ · 10-03-07, 11:25 AM

Quote:

Originally Posted by Blackraven

I mean, how can they make such a claim like that (even if it is just as prototype).

It's called dual modulation, not over-inflating. Normal LCD panel can block or pass through certain amount of light. Now if displays has two LCD panels or light modulation stages, contrast goes up to multiple millions:1.

Blackraven · 10-03-07, 11:28 AM

Quote:

Originally Posted by ____

It's called dual modulation, not over-inflating. Normal LCD panel can block or pass through certain amount of light. Now if displays has two LCD panels or light modulation stages, contrast goes up to multiple millions:1.

I'm reading your post right now and I'm trying to understand it.

But if ever I make a reply to it, I won't be able to do so till the following day.

P.S.
I'll do give them credit though for HITACHI stating that they can use this dual-modulation LCD Hybrid whatever with their 3D display technology (without the need for the user to wear 3D glasses).

They said that they can do this via a feature on the TV (so you can active or deactivate it anytime).

That's if they can do it.

DBLASS · 10-06-07, 06:36 PM

Contrast ratio numbers like this is CRAP. A 500 nit display (white) will need to have a black level of .000002 nits. You can even measure that let alone see it. Oh yeah, turn on the lights and get about 50:1.

Haven't we all caught on that the CR numbers game is STUPID?!?!?!?

Elemental1 · 10-07-07, 12:18 PM

Quote:

Originally Posted by DBLASS

Contrast ratio numbers like this is CRAP. A 500 nit display (white) will need to have a black level of .000002 nits. You can even measure that let alone see it. Oh yeah, turn on the lights and get about 50:1.

Haven't we all caught on that the CR numbers game is STUPID?!?!?!?

Well...it sure sold a lot of LCD Tv's.

greenland · 10-07-07, 01:08 PM

Well, aside from the fact that it is actually a rear projection device, which means it does not belong on this forum, and the fact that they have no plans to actually market it, it truly is wonderful news. Here is what they said on their website:

"Hitachi Ltd. has developed a 47-inch display that boasts an enhanced dark room contrast ratio of 8,000,000:1.

The display was realized through the adoption of Hitachi's "hybrid monitor technology," which combines an LCD panel and an LCD projector, the company said. Although saying the display hasn't been scheduled for volume production, "We can commercialize it anytime if there is demand from consumers," Hitachi said. "

09-29-07, 04:04 AM	#1 \| Link	<a href='http://rev.avsforum.com/phpAdsNew/adclick.php?n=a4ac4393' target='_blank'><img src='http://rev.avsforum.com/phpAdsNew/adview.php?what=zone:30&n=a4ac4393' border='0' alt=''></a>
vtms Advanced Member Join Date: Oct 2006 Posts: 826	Hitachi Develops 8,000,000:1 CR Display http://techon.nikkeibp.co.jp/english...070928/139849/ Hitachi will also unveil a 1.9mm 32" LCD at CEATEC next week. http://techon.nikkeibp.co.jp/english...070927/139803/ __________________ Laser TMOS

09-29-07, 02:55 PM	#6 \| Link
vtms Advanced Member Join Date: Oct 2006 Posts: 826	This technology is nothing other than another example of 2-stage light modulation very similar to the one originally developed by BrightSide (projector as backlight for LC panel). In theory, using projector as backlight is a far superior solution than using IMLEDs because: 1) BLU resolution (720p) is ~1000 times higher than even IMLED backlights. ~million dimming zones vs. ~1000. 2) Unlike IMLED backlights, projector BLU throws a color picture. (So, I imagine, no need for color filters on LC panel?) This is basically an RP-LCD hybrid so the biggest drawback here is display thickness (30cm). Now, here's an improvement that would make this technology really exciting. Simply, use laser RP (aka laser TV) as backlight (10cm thick or less, reduced optics, energy efficient, no bulb replacements, huge color gamut). __________________ Laser TMOS Last edited by vtms; 09-29-07 at 03:57 PM..

09-29-07, 09:19 AM	#2 \| Link
greenland AVS Special Member Join Date: Jan 2006 Posts: 3,531	The articles says that it is not a flat panel, and that they have no plans yet to market it.

09-29-07, 09:32 AM	#3 \| Link
elmalloc Eternal Sonata Join Date: Apr 2002 Location: Brunswick, OH Posts: 2,832	Cost: 1 quadruple trillion ga billion dollars

09-29-07, 07:27 PM	#8 \| Link
tombaker Advanced Member Join Date: Jun 2007 Posts: 562	I watched an image of the Sun on this set....I think I have UV sunburn now.

10-03-07, 11:17 AM	#9 \| Link
Blackraven Senior Member Join Date: Oct 2005 Posts: 258	As much as I have respect for HITACHI (they do make LCD TVs that are as good as that of JVC), I cannot honestly believe how they can make such an inflated figure of 8,000,000:1 contrast ratio. I mean, how can they make such a claim like that (even if it is just as prototype). Are they saying then that they have better CR than the Sony OLED prototype (1,000,000:1) and the Samsung LED LCD TV (500,000:1)????? That's like already over-inflating Sony and Samsung's by a factor 8x and 16x, respectively. And mind you, is HITACHI considered to be better than Sony and/or Samsung??? You be the judge At one time, I almost felt that it was insulting (after reading the article). I mean, if HITACHI is trying to inflate its contrast ratio numbers to gargantuan numbers (and majority of these inflated CR numbers are just MARKETING HYPE IMHO), they could have at least tried to NOT MAKE IT TOO OBVIOUS that their over-inflating it. Better contrast ratio than any of Hitachi's current and previous-gen displays, YES. But stating a contrast ratio number (as inflated as CR numbers generally are nowadays) that is higher than that of companies with greater marketshare, tech R&D, resources and influence, HELL NO (at least in my book). /rant over

10-06-07, 06:36 PM	#12 \| Link
DBLASS Advanced Member Join Date: Dec 2006 Posts: 665	Contrast ratio numbers like this is CRAP. A 500 nit display (white) will need to have a black level of .000002 nits. You can even measure that let alone see it. Oh yeah, turn on the lights and get about 50:1. Haven't we all caught on that the CR numbers game is STUPID?!?!?!?

10-07-07, 01:08 PM	#14 \| Link
greenland AVS Special Member Join Date: Jan 2006 Posts: 3,531	Well, aside from the fact that it is actually a rear projection device, which means it does not belong on this forum, and the fact that they have no plans to actually market it, it truly is wonderful news. Here is what they said on their website: "Hitachi Ltd. has developed a 47-inch display that boasts an enhanced dark room contrast ratio of 8,000,000:1. The display was realized through the adoption of Hitachi's "hybrid monitor technology," which combines an LCD panel and an LCD projector, the company said. Although saying the display hasn't been scheduled for volume production, "We can commercialize it anytime if there is demand from consumers," Hitachi said. "