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On 2014-02-26 16:48:39, ardian wrote:
On 2014-02-26 13:19:20, DexterMoser wrote:
@Ardian:
Wasn't there something exceptional about the Z2 that you couldn't tell us before the announcement?
I'm just curious, what was it?
for that you have to have more time mate
... new flagship
I want it now, damn!
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Posted: 2014-02-27 19:37:36
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On 2014-02-27 11:59:51, Smaug wrote:
@Wintermute
Do you have any knowledge on how Sony deploys Triluminos for Mobile as compared to Triluminos in BRAVIA? It's believed that Triluminos on Xperia is a software only solution, while BRAVIA uses hardware-based Quantum Dot technology licenced from QD Vision to enhance the original backlight. It is based on their Colour IQ process.
However, this is difficult to verify. It may be more "common opinion" that turned into accepted fact. Sony have not clearly distinguished differences - if any - between Xperia's Triluminos for Mobile and BRAVIA's Triluminos. I'm personally sceptical of running both this Live Colour phosphor-based LED that is then passed through a Triluminos QD layer. While technically feasible, this would not only increase your manufacturing cost and complexity but for a diminishing return as they achieve the same thing: vivid, accurate colour rendering with a very wide gamut.
Triluminos on BRAVIA, from my basic understanding, essentially splits the blue LED into narrow wavelengths of green and red by energising the QD nanocrystals. Phosphor-coated LEDs (double coated in green and red for the new XZ2/XT2) would thus require filtering of numerous wavelengths. Why go to twice the trouble when one or the other would suffice? It would be like purifying your tap water twice. Triluminos relies on blue LED light, but Live Colour LEDs would be emitting RGB. A hardware-based Triluminos for Mobile would likely require significant modification - again, for little tangible benefit.
Note Sony claim the Tablet Z2 is the world's first application of their phosphor LED tech. Since false marketing can land you in hot water, this indicates the Tablet Z used a different colour rendering process.
No no, Triluminos for mobile is unquestionably a hardware feature. There's no option to turn it off in the settings menu like for X-Reality, so that should give you a clue. The QD tech IS Triluminos. Basically, the backlight is pure blue. That blue light is then used both to provide the blue color for filtering, AND a portion of it also energizes the quantum dots, which re-emit the light at their defined wavelengths, red or green (it is worth pointing out that no "filtering" takes place in this process--blue light contains no green or red, so no matter how you filter it, you can never get pure green or red; the photons are totally absorbed by the quantum dots, and then they re-release separate photons of a different color). In this way, you get white light composed of very specific colors, unlike regular light, which is composed of a wide spectrum of thousands of colors. Think of it like a normal distribution (bell curve). The center of the curve would be the desired color, and the curve to the sides represents how much of other colors similar to (but not exactly) the color you want. Triluminos significantly narrows the curve, so you're getting much more of a specific color, which means when a filter is tuned to the wavelength represented by that color, proportionally more of the light gets through the filter.
Now, I'm pretty confident in guessing that they are still calling it Triluminos because they are still utilizing this approach, with the exception being that instead of using quantum dots, they are now employing some type of phosphor setup. To be honest, I don't know very much at all about phosphors, so I don't know the physical phenomenon behind it (so I can't guess as to efficiency or brightness), but I can say for certain that they would not use both phosphors and quantum dots. It wouldn't even make sense. You'd use one or the other. Perhaps they went to the Live Color phosophor-based solution in order to get around patent licensing fees? Don't know.
Anyway, to reiterate, I can also assure you Triluminos is very much a hardware feature. Pretty impressive stuff, really, if you ask me. If they've improved contrast over the Z Ultra (not that I found it lacking--in fact, it's pretty good, but it's the ONLY area that display didn't totally excel in), I don't see how anyone is going to equal Sony's new displays, unless you just can't live without over-saturated AMOLED. Not that there's anything wrong with that, but I prefer a more properly calibrated display. I was pleased to see Erica Griffin's video stating that the black crush no longer seemed to be present, and that white balance was improved. You can tell just watching the video, even on my crappy monitor, that the new display is amazing. I really hope they bring this quality to the next Z Ultra. I don't think I've ever foamed at the mouth over a phone this much, lol.
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Posted: 2014-02-27 20:44:03
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@Wintermute
Thanks for the informative post. There are a couple of questions remaining though.
Triluminos in BRAVIA splits the blue LED light and re-emits at red or green wavelengths using QD Vision's tech. Where things get murky is the Tablet Z2's Live Colour LEDs do not emit blue. Due to the double phosphor coating, the LED emittance is blue, red and green. This light then passes through the nanocrystal layer in order to energise the QDs into specific wavelengths.
Perhaps I am missing something in the process, but conventional Triluminos would not work under this method. You would need to modify the QD layer to absorb different wavelengths representing RGB, which would then... re-emit RGB again? If we use your bell curve analogy, sure you can get very narrow wavelengths (so very specific colours) but the phosphor tech is meant to incorporate this anyway. It is the missing piece of this display puzzle.
Note not being able to turn off the feature does not necessarily confirm it is not software based. You cannot turn off the BIONZ image processor, for example.
That's why I am perplexed as to why Sony would incorporate both hardware Triluminos and Live Colour LEDs. They do the same job but add development, manufacturing and licence costs and complexity. Admittedly, Sony haven't stated whether they licence the phosphor tech from a third party, but there are a few out there that specialise in it as this isn't new. Sony just claim they're the first to apply it in a tablet. In their promotions, Sony also distinguishes between Live Colour and Triluminos so they must be separate processes.
I read a research paper (thrilling, I tell you) discussing phosphor LEDs. In short, they produce a wide CRI value but at a cost: lower power efficiency due to the Stokes shift. By combining multiple phosphors, the luminous emittance can appear "brighter" due to the human eye's varying sensitivity to different wavelengths. In short, Sony's new displays should appear brighter, more vivid and with a broad colour gamut, but will drain more power and the screen will be hot.
Perhaps the Tablet Z2 and XZ2's displays are more advanced than we think. If Sony modified the Triluminos QD layer to absorb and re-emit the RGB from the coated LEDs, you'd get highly accurate colour rendering, 100% of NTSC gamut and bright screen. If they solved the power trade-off (note bigger battery in XZ2), even better.
Apologies for those that feel we've highjacked the Rumours thread. However, this has strong implications for future Xperia models. If true, combined with IPS panels and Sony may have unquestionably the best displays on the market. Resources could then be diverted towards improving camera software or speakers etc.
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Posted: 2014-02-27 23:30:32
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Not at all. Interesting posts, I enjoy reading about how the new tech works.
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Posted: 2014-02-27 23:50:29
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On 2014-02-27 19:37:36, DexterMoser wrote:
On 2014-02-26 16:48:39, ardian wrote:
On 2014-02-26 13:19:20, DexterMoser wrote:
@Ardian:
Wasn't there something exceptional about the Z2 that you couldn't tell us before the announcement?
I'm just curious, what was it?
for that you have to have more time mate
... new flagship
I want it now, damn!
hahaha you cant have it now
.. Lebron waited like 8 years to get his first ring
you need to wait only 6 months
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Posted: 2014-02-28 01:51:46
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^
Are you hinting us not buy Z2,what major changes we can see?
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Posted: 2014-02-28 02:37:13
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Ring gadget from Sony?
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Posted: 2014-02-28 04:03:09
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On 2014-02-26 23:49:40, Smaug wrote:
Indeed. As sensors go, that's Sony's playground. Note it isn't a mega cash-cow for Sony as they nominally sell for around $7-8 USD per sensor, but with large orders from customers like Apple it can add up.
Global shipments of the (SONY) imaging sensor will probably grow to 3.14B units this year
Sensors made by Sony sold for an average of $7.30 each, almost four times the $1.93 that Samsung got for similar chips, based on 2012 unit sales and revenue estimates by TSR
Sony’s revenue from image sensors rose to $2.45B in 2012 from $1.89B a year earlier, garnering 32% of the global market
Omnivision ranked second with 14.4%, followed by Samsung at 12.9%
Sony’s latest star performer isn’t a gadget like the Walkman or PlayStation. Instead, it’s a chip found in almost every high-end camera and smartphone. Apple’s iPhones 5 and 4S use it and so do Samsung’s flagship Galaxy S4 and LG’s G2, researchers say.
http://www.bloomberg.com/news[....]-apple-and-samsung-phones.html
It is over 3 billion business for Sony, and they are constantly expanding the production.
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Posted: 2014-02-28 04:03:49
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On 2014-02-28 04:03:09, HxH wrote:
Ring gadget from Sony?
^^
https://www.kickstarter.com/p[....]70738/ring-shortcut-everything ???
Interesting concept
[ This Message was edited by: Tizzo on 2014-02-28 03:17 ]
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Posted: 2014-02-28 04:16:40
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Normally those prototype phones released 6 month before the announcement?
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Posted: 2014-02-28 04:23:18
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