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Laser TV Unveiled

post #1 of 37
Thread Starter 
http://www.news.com.au/story/0,23599,20556847-2,00.html


Laser TV unveiled

By Adam Bennett

October 10, 2006 04:04pm
Article from: AAP

IT'S being hailed by its developers as the next revolution in visual technology - a laser television that will make plasma screens obsolete.

Soon-to-be-listed Australian company Arasor International and its US partner Novalux unveiled what they claimed to be the world's first laser television in Sydney today, with a pitch that it would be half the price, twice as good, and use a quarter of the electricity of conventional plasma and LCD TVs.

Laser vision ... two pose before the world's first laser television,
an Australian innovation that it is claimed uses less power,
has twice colour range of LCD and plasma units at half the cost
Manufacturing company Arasor produces the unique optoelectronic chip central to the laser projection device being developed by Silicon Valley-based Novalux, which is being used by a number of television manufacturers.

And displayed beside a conventional 50 inch plasma TV this afternoon, the Mitsubishi-built prototype does appear brighter and clearer than its older rival.

With a worldwide launch date scheduled for Christmas 2007, under recognisable brands like Mitsubishi and Samsung, Novalux chief executive Jean-Michel Pelaprat is so bold as to predict the death of plasma.

If you look at any screen today, the colour content is roughly about 30-35 per cent of what the eye can see, he said.

But for the very first time with a laser TV we'll be able to see 90 per cent of what the eye can see.

All of a sudden what you see is a lifelike image on display.

Combine that with energy efficiency, price advantage and the fact that the laser TVs will be half the weight and depth of plasma TVS, and Mr Pelaprat says plasma is now something of the past.

Mr Pelaprat predicted LCD TVs would come to dominate the market below 40 inches, and laser television the market above that screen size, displacing plasma.

The optoelectronic chip-laser technology won't be confined to TVs.

The technology is also being trialled in mobile phones, where it will be used to project images onto any surface, and in home theatres and cinemas.

The unveiling of the laser TV prototype was held on the eve of Arasor's public float on the Australian Stock Exchange next week.
post #2 of 37
[Stewie Griffin]Game over man. Game over.[/Stewie Griffin]

I'm looking forward to a new KING in front projection. Bring on Laser projection at an affordable price and that will be a true CRT replacement.
post #3 of 37
Very exciting. Looks like we'll get to buy it next year!!!

http://www.i4u.com/article5383.html

Although I wonder if we'll see any projectors.
post #4 of 37
I like the 1/2 the weight and 1/2 the depth part. I just hope this isn't another "SED's right around the corner, okay just 2 more years, okay just 3 more years, etc..." situation. I'm a little skeptical that a product would go from out of the blue to the shelf in just 14 months.

But shouldn't this be in the flat panel forum?
post #5 of 37
So, at 'half the cost' any speculation on an expected price per size?

I still can't believe a laser tv, too amazing.
post #6 of 37
This would be a real boon to front projection, with DLP the having a bit more to gain than either LCD and Lcos. In DLP laser lets you get rid of the colorwheel, the biggest reliability issue and the largest contributor to RBE. With continuous RGB light it allows a very high refresh rate, it should allow a refresh rate of 10x or greater colorwheel equivalent, as well as higer brightness. Good news for DLP. Increased lifespan, the laser emitters can run at 100% power for 1 million hours before reaching 80% output level. No more $400 bulb changes. Not to mention the DLP will be able to drop in price by a significant amount. The laser assembly is claimed to be 50% cheaper to produce than a lamp assembly, and DLP can drop the colorwheel and it's drive electronics.

More good news for Front Projections in general is twofold. There are several opportunities to improve ambient light rejection in Front projection screens.

1) First is pretty simple, since the laser generates polarized light, a screen with a simple polarizer aligned to the projector's polarized light orientation should reject over 50% or ambient light while reflecting close to 100% of the projected light. My polarizer assumptions may be 180 degrees out, or totally out in left field...

2) In addition, since the laser only lases at a very specific frequency... you can design a screen to reflect light in three very close wavelength windows. The screen will appear black until light of the the appropriate wavelength strikes it. Novalux laser emitts the following; blue (460-nm), green (532-nm) and red (620 to 635-nm), with a spectral width of 1-2 nm. design the screen to reflect blue from 458-462nm (4nm window) and do the same with green and red and you now have deep blacks and vivid projected colors.

Combine 1 and 2 for even deeper blacks...

Will this screen be expensive? YES! Will it produce a fantastic image at 100" when paired with a Laser driven front projector? ABSOLUTELY! Will it cost less than a 104" Plasma? Most definitely...

From reading the Novalux website, the only holdup is a 4 fold increase in Red laser emmiter output. They are certain they can reach this milestone and be in production (they have their own small capacity 4 inch GaAs fab that can produce around 10,000 lasers a day) within a year. This is of course contingent on them executing to plan, and achieving both Red laser output and high wafer yields. Since I work in semiconductor myself, I know that doesn't always happen.

Very exciting times ahead for both flat panel and projection TV's
post #7 of 37
I will upgrade my Pearl in 123...4 years.
post #8 of 37
Quote:
Originally Posted by Cobraphx View Post

This would be a real boon to front projection, with DLP the having a bit more to gain than either LCD and Lcos. In DLP laser lets you get rid of the colorwheel, the biggest reliability issue and the largest contributor to RBE. With continuous RGB light it allows a very high refresh rate, it should allow a refresh rate of 10x or greater colorwheel equivalent, as well as higer brightness. Good news for DLP. Increased lifespan, the laser emitters can run at 100% power for 1 million hours before reaching 80% output level. No more $400 bulb changes. Not to mention the DLP will be able to drop in price by a significant amount. The laser assembly is claimed to be 50% cheaper to produce than a lamp assembly, and DLP can drop the colorwheel and it's drive electronics.

More good news for Front Projections in general is twofold. There are several opportunities to improve ambient light rejection in Front projection screens.

1) First is pretty simple, since the laser generates polarized light, a screen with a simple polarizer aligned to the projector's polarized light orientation should reject over 50% or ambient light while reflecting close to 100% of the projected light. My polarizer assumptions may be 180 degrees out, or totally out in left field...

2) In addition, since the laser only lases at a very specific frequency... you can design a screen to reflect light in three very close wavelength windows. The screen will appear black until light of the the appropriate wavelength strikes it. Novalux laser emitts the following; blue (460-nm), green (532-nm) and red (620 to 635-nm), with a spectral width of 1-2 nm. design the screen to reflect blue from 450-470nm and do the same with green and red and you now have deep blacks and vivid projected colors.

Combine 1 and 2 for even deeper blacks...

Will this screen be expensive? YES! Will it produce a fantastic image at 100" when paired with a Laser driven front projector? ABSOLUTELY! Will it cost less than a 104" Plasma? Most definitely...

From reading the Novalux website, the only holdup is a 4 fold increase in Red laser emmiter output. They are certain they can reach this milestone and be in production (they have their own small capacity 4 inch GaAs fab that can produce around 10,000 lasers a day) within a year. This is of course contingent on them executing to plan, and achieving both Red laser output and high wafer yields. Since I work in semiconductor myself, I know that doesn't always happen.

Very exciting times ahead for both flat panel and projection TV's

are you sure this technology will even use the DLP chip? I did'nt see it mentioned at all. in the article
post #9 of 37
I don't believe this is using DLP or any such thing.
post #10 of 37
A few months ago Mits demo'ed a laser RPTV that was a DLP and said they aimed to have production units by Xmas of 2007. I would assume this is related to the same effort as described in this thread.

Ron Jones
post #11 of 37
Quote:
Originally Posted by augiedoggy View Post

are you sure this technology will even use the DLP chip? I did'nt see it mentioned at all. in the article

Here are some links that helped me surmise this idea of ditching the colorwheel. first off you have 3 NECSEL light sources; one each for red, green and blue (RGB). In DLP the colorwheel filters white light from UHP lamp to get the 3 colors (RGB); ie. No purpose for colorwheel anymore.

Epson and Novalux

Quote:


Projection TVs using these new technologies will have the following advantages:
* High picture quality
High power and narrow illumination angles will deliver striking brightness and contrast. Superb images will become possible as the new technology will boast improved color reproduction compared to conventional UHP lamps currently used in projection TVs.
* Long life
Improved lifetime would eliminate the need for the lamp replacement that is the case with current projectors
* Wide color gamut
Considerably expanding the color space, as compared with UHP lamps, will achieve excellent expression with sharp colors.
*High responsiveness
Prompt turn-on and off capability, as compared with many other products currently available.
* Low cost
The new laser light source module will eliminate the need for polarizers and color filters, and will allow for a simplified optical structure to realize lower cost.

Novalux display applications

Quote:


AFFORDABLE
Our platform reduces light engine cost on several levels:

* Necsel light sources are more affordable than current pricing of UHP lamps.

* Our sources enable simpler, smaller, less costly light engines. With DLP systems, our technology eliminates the need for a color wheel, light tunnel and relay optics. For 3LCD engines, we eliminate the polarizers, color filters, turning mirrors and fly eye lenses.

* They enable less costly microdisplay panels. Our sources project all of their light onto even the smallest microdisplays without a reduction in coupling efficiency. Reducing microdisplay size reduces their cost.

* Our low étendue sources emit at narrow angles, allowing simpler, more affordable projection optics.
post #12 of 37
Quote:
Originally Posted by rogo View Post

I don't believe this is using DLP or any such thing.

Sorry Rogo,
Looks like Epson, Mistubishi, Novlux and others don't agree with you.
Take a look at Lasers in Projection Page 15 shows drawings comparing colorwheel/UHP DLP projection to Novalux DLP projection.

Displaysearch 2006

Quote:


Gregory Niven of Novalux discussed laser illumination, another technology being touted as a light source for PTVs though it's over a year away from commercial realization. Lasers, he argued, will last indefinitely with no change over time, may be designed with lumen output scalable to very high levels, including the 20,000 Lumens or higher needed for D-Cinema. It also boasts a wide viewing angle, high contrast, a wide color gamut, low power requirements, reduced weight, and, presumably in production quantities, lower cost. He predicted that 7-10 companies are likely to show laser display prototypes at the January 2007 CES, with commercial designs becoming available by the end of 2007.

They appear to be looking to replace the light source and path in DMD and 3LCD projection displays, this should be fairly quick to market. But maybe my reading comprehension isn't very good.
post #13 of 37
Will this tech have any other drawbacks?

Will it have screen door effect?

Will it have convergence problems?

Will it have burn-in problems?

Will it have CRT-halo issues?

For now I'm happy with my Pioneer Elite CRT (730-HDi) so I've got the time to wait this one out. I really wasn't happy with the choices of LCD, DLP or anything else I've read about until this one.
post #14 of 37
It will have some or all of the problems you mention depending on which type of projection it is implemented in. It's first implementation seems to be to replace the light source in DLP, LCD and Lcos projection displays. so...

Quote:


Will this tech have any other drawbacks?

It looks like availability and time to market will be bigget drawbacks.

Quote:


Will it have screen door effect?

This will not fix screen door, the microdisplay will still have it's inherent pixel structure.

Quote:


Will it have convergence problems?

There won't be convergence issues on 1 chip DLP, but there will still be possible misconvergence on 3 chip DLP, LCD and Lcos.

Quote:


Will it have burn-in problems?

Burn in will be the same as traditional microdisplay devices, nearly nonexistent on DLP, and possible with organic LCD ie. Epson D5, not sure the lifetime of pixels in Lcos and inorganic LCD ie Epson D6.

Quote:


Will it have CRT-halo issues?

Not sure of any Microdisplay projection display that exhibits CRT-halos

Now the future, I would expect the micro projection systems to take longer. Not sure how they are scanning the lasers to generate an image in that system, but conceivably screen door and burn in would be eliminated. Someone in the company could probably address that, but beyond what I can glean from thier public information.
post #15 of 37
Quote:
Originally Posted by Agrajag View Post


Will it have CRT-halo issues?

If your CRT is gamma corrected for good shadow detail while maintaining close to true black that shouldn't be much of a problem, especially with a Pioneer Elite, which is an LC unit, I'm sure.
post #16 of 37
"...sharks with fricking laser beams..."
post #17 of 37
I think the big Deal about Arasor is it is somehow modulating the laser without a DLP. The older novalux info is about the DLP solution. This is something new. EEtimes says they have no information how they are modulating/scanning the laser.
post #18 of 37
Quote:
Originally Posted by MTyson View Post

[Stewie Griffin]Game over man. Game over.[/Stewie Griffin]

If you quote a character quoting another character (Hudson from Aliens), shouldn't you just quote the original character?
post #19 of 37
Sorry, but - SCREW DLP - old tech, by now, and too intricate for durability's sake - the refresh rate, ease and cost of manufacturing, and durability aren't as good as ------

GLV - Grating Light Valve. Sony was working on Silicon Light Machine's invention for awhile, 'til they neglected it for SXRD. GLV tech. has now found its way into print-plate printing machines, and in 360 degree dome projection. Paired with the new low-power solid state laser technology from Arasor, seems like a huge winner. Or check out the diffraction/holography laser imaging from Light Blue Optics: http://www.lightblueoptics.com/technology.htm

I'm extremely excited about the prospect of laser front projection, and will retire my CRT FP when I can switch to laser, methinks...

The LBO unit doesn't even require focusing because of the linearity of the projected laser "beams" - should be, "goodbye, halo!"

Even the Novalux/NECSEL Laser Processor (it doesn't use 3 lasers - it uses one which is wavelength "processed" by their solid state technology into 3 different spectrums) should eliminate the halo effect. To re-cite an above-mentioned quote:
"* High picture quality
High power and narrow illumination angles will deliver striking brightness and contrast. Superb images will become possible as the new technology will boast improved color reproduction compared to conventional UHP lamps currently used in projection TVs."

antother quote from this page about the image modulation and projection linearity: http://www.novalux.com/display/

"The result is a new category of ultra-compact projector that produces brilliant, colorful, high-contrast images that are always in focus, even on curved surfaces."

And a quote about price (at least for the tiny NECSEL projectors - this should get EVERYONE psyched! - NO BULB BUDGET NEEDED, EITHER - yes, I know I'm shouting - I'm friggin' psyched!):

"..current palm-top projectors based on LED lighting measure over 30 cubic inches, produce around 20 lumens, and cost in excess of $700.00. Necsel prototypes display a light output of over 200 lumens with both device size and cost cut in half."

Cell-phone sized projector @ $350? Sweet! Dunno' about a bigger projector's cost yet, but it should easily come in MUCH cheaper than any other projector tech.

"FRONT PROJECTION


For enthusiasts who demand a true home cinema experience (*any of you frequent these boards?*) , laser-based front projectors offer it all. Images are colorful, high-contrast and high-resolution, even when projected onto the largest screens. Laser-based front projection systems are also more affordable than lamp-based projectors, so a front projection system no longer needs to be cost prohibitive. And unlike today’s projectors, Necsel-based projectors offer over 30,000-hour light source lifetime, eliminating expensive service calls to replace burnt out bulbs. Necsel sources also retain their original light output over time, so images remain just as bright and lifelike as when the system was new."

One last hint about their plans for microdisplay technology (similar to the LBO stuff), from one of Novalux's .pdf's:
"2. Illumination optics will be cheaper than with lamps or LEDs
with the use of diffractive optical elements" - diffractive holography is already slated to be used with the little LBO units - maybe the Novalux/Arasor units, too.

*** LATE BREAKING NEWS, though - looks like the much-ballyhoo'd Arasor event in Australia was a non-Mitsubishi sanctioned publicity stunt, and Mitsubishi, Samsung, and some other manufacturers are stating they plan to sue Arasor, which went public on the Aussie Stock Exchange the day after the demo, for over $17m.

http://www.smarthouse.com.au/TVs_And...ustry/G3C2K6L4

Still, Seiko Epson is on record saying they will develop TV's and projection devices based on the Novalux/Arasor laser tech.
http://www.epson.co.jp/e/newsroom/20...s_20060313.htm

3 cheers for laser!
post #20 of 37
Wasn't laser talked about 15 years ago....and how many devices are there today?
post #21 of 37
Before anyone (especially Ohlson ) gets too excited, please note the excerpts from the press release below:

Quote:
Originally Posted by cavu View Post


Soon-to-be-listed Australian company Arasor International...


...The unveiling of the laser TV prototype was held on the eve of Arasor's public float on the Australian Stock Exchange next week.
post #22 of 37
Call me in five years.
post #23 of 37
Quote:
Originally Posted by tcutbirth View Post

Sorry, but - SCREW DLP - old tech, by now, and too intricate for durability's sake - the refresh rate, ease and cost of manufacturing, and durability aren't as good as ------

I'd like to see your source for this data.

-phil
post #24 of 37
Are you referring to the benefits of GLV over DLP?

There are so many pages that have come and gone on this, but this brochure mentions the speed in the box on the bottom of the second page:
http://www.siliconlight.com/brochure1.pdf

"Signifigantly faster operating speeds - measured in nanoseconds, not milliseconds."

I've read other places about the long life/duty cycle of GLV vs. DLP, and the ability to achieve true blacks (the signal can actually be off completely).
post #25 of 37
Hmmmm... Their last press release was in 2003...
post #26 of 37
I e-mailed them back in 2004. I heard back from one of the guys at Cyprus Semiconductor, and at the time he said Sony was still working on a GLV projector, but had gotten somewhat sidetracked by the Qualia project and LCoS. I'm not convinced, actually.

The main application for GLV currently seems to be platemaking for larger printers - the GLV chip can modulate the laser better than competing technology.

I'm not saying that laser PJ's will be based on GLV, btw. The diagram at LBO's site clearly shows they're using a holographically based technology which appears to have no moving parts. I simply don't know what Arasor is planning on using to modulate their laser output since they haven't really announced anything specific - apparently they used a modded DLP setup for their demonstration. The lasers eliminate the need for color wheels, but there would still remain the DLP challenge of reproducing good blacks and dark greys for front projection (though they are coming along in that area, and TVs can use masking tek that PJ's can't).
post #27 of 37
One more GLV-related link (since GLV projection tech is generally laser-dependent):
http://svconline.com/mag/avinstall_p..._technologies/

quote: "Some GLV chips can switch their states a million times faster than LCDs." DLP's have a similar refresh rate, so it goes without saying that GLV's can out-refresh them, too.

Projector update from 2005 - E&S are using GLV, whereas Sony has basically ditched it in favor of their LCOS/SXRD PJ's:
http://www.hdtvexpert.com/pages/glv.htm

This article isn't too bullish on the future of GLV. However, keep in mind that home PJ's don't need 10k lumens, and that Arasor's laser tech supposedly has a great cost/lumen ratio. Still, who knows exactly what will wind up winning on a cost-effectiveness scale. LBO's holographic tek seems very cool, but I wonder what kind of keystone-correction you can get from it - software scaling doesn't look very nice compared to changing the scan, like with CRT PJ's.
post #28 of 37
This may seem like a silly question, but would there be any danger to eyesight from a laser display? I know that pointing a laser pointer directly into your eye would be a very bad thing, so would the diffusion of the lasers used for front/rear projection completely counteract the possible eyesight risks?
post #29 of 37
The full answer to that is kind of technical, but in short - yes, a direct shot of *sufficient duration* and *sufficient intensity* can blind...can you comfortably look into a DLP, LCD, or CRT pj? Not really, especially not during peak brightness. With low enough peak brightness levels, though, lasers aren't that dangerous - depends on the laser Class. The little portable pj's shouldn't have any problem with this - they're simply not strong enough, just like *most* laser pointers (new green ones coming in from China are reportedly sometimes too bright for their class and are mislabled - very dangerous).

Keep in mind that the laser is being constantly modulated in a projection scenario - it's not on all the time, and it's not on at it's brightest the whole time either. It's still not a good idea to look into the lens, though, I'm sure! Ceiling mount would make a lot more sense than a floorstanding projector in light of those concerns.
post #30 of 37
Anybody run this one by Ohlson???
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