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Having read the analysis ( http://www.eecs.qmul.ac.uk/~tb300/pub/Appendix_Quattron.pdf) it doesn't seem like they examined it very thoroughly at all. I'm not saying their conclusions are wrong, necessarily, but could they not find their screwdriver that day, or something? Turning the thing on and looking at the colors it produces is obviously of relevance, but the article masquerades as an in-depth investigation and the only mention of the backlight, for instance, is in the caption to a diagram. If it isn't obvious (and even if it is): the backlight is what actually produces the light, so it is of paramount importance, here. -- 2601:140:8000:A739:5C13:6257:6BC0:8EE2 ( talk) 12:45, 31 May 2019 (UTC)
while im confident this subject deserves an article, which will likely expand from a stub as the product reaches market, im reluctant to add too many links, as that may be perceived as overly promotional for this product line. Is this enough for now? love the ad with george takei. OH MY! Mercurywoodrose ( talk) 06:34, 23 March 2010 (UTC)
how does this technology create the yellow color information when video signals are three-color based (RGB, YPbPr, others)? I suppose it just makes the yellow information as any other RGB TV would do, only it then separates it to a specific yellow light emitter? What's the point? The reason we use three-color systems is because all color information can be recreated this way. Sounds pretty gimmicky to me. More info would be helpful. —Preceding unsigned comment added by 64.91.44.34 ( talk) 16:37, 25 March 2010 (UTC)
Dont know how to post this info so if you could please consider it and perhaps put it into proper format and context. If you consider the color spaces that allow negative values for R G B "Deep Color" I think then RGB signals could specify color on the other side or the R G line (see www.cvrl.org)(YOUR PUREST YELLOW CREATED FROM R AND G IS ON THIS LINE. ADDING BLUE BRINGS YOU TOWARDS THE WHITEPOINT. ADDING NEGATIVE BLUE MOVES YOU TOWARDS THE SUPER SATURATED YELLOW. (BOOM!)(75.23.164.143)
You have touched on a point here... newer color spaces allow for negative numbers in the color signal, which allow for a higher color gamut to be represented. MultiPrimary displays are being developed in anticipation for such wider color gamut encoded material. It is the classic 'chicken' vs. 'egg'... in this case, the display is first, content will come later. In the mean time, a gamut mapping algorithm may "guess" at better colors, as the original real world color had to be clipped to the available color gamut of the original NTSC or sRGB color space, because the displays couldn't show anything better anyway.
DisplayGeek ( talk) 23:35, 2 June 2012 (UTC)
Someone PLEASE explain this to me because this is absolutely senseless, I mean red AND green make yellow, so why add it to the pixel list? Murakumo-Elite ( talk) 00:19, 8 April 2010 (UTC)
Do we have any sources from the development of this, and why they chose to add another color instead of changing from three equidistant colors in the spectrum to four equidistant colors, which would surely give you an even larger gamut? Is it because red, blue, and green LEDs are cheaper? —Preceding unsigned comment added by 75.73.70.113 ( talk) 00:53, 23 May 2010 (UTC)
The choice of using a fourth color, yellow, here provides several benefits. First, it allows for a brighter overall display for a given backlight brightness, similar to RGBW color systems. Second, the green color primary can never be right up against the spectral locus, thus is not able to add with the red to produce the more saturated yellows. But a yellow primary can be made to be more saturated than physically realizable R+G color filters can provide. Thus, the color space is expanded, even if only slightly, along the "line of yellows".
In other multiprimary systems, the fourth color is often cyan or emerald green (stoplight green as opposed to the yellowish green of RGB systems) This allows a color system in which the "line of blues" (actually cyans) is reproducable. Presently, the RGB primary system can only show half of the colors that the human eye can see.
DisplayGeek ( talk) 23:46, 2 June 2012 (UTC)
I recently added the "Criticism" section, since Maximum PC Magazine published an article on debunking myths associated with Display technologies. The article goes into great detail about why the Quattron tech is really just a marketing ploy that offers no tangible benefit to image quality. I really feel that the single line "does not in fact produce more colors than a standard RGB set" is not sufficient. There was much more in that article, especially the information about the REC.709 standard and the color balancing performed by studios for home consumption. —Preceding unsigned comment added by Shhewitt ( talk • contribs) 18:24, 24 August 2010 (UTC)
Personally, I question citing ANYTHING from Ray Soneira. Although he presents himself as THE expert, he has repeatedly shown that he does not understand the latest cutting edge research in multiprimary and subpixel rendered displays. By saying negative things about major display inovations, he fits into the false logic of "the truth lies somewhere in the middle"... in this case, his truth is anything but, and should be cited carefully, not as an expert, but as encyclopedic reference to press coverage. DisplayGeek ( talk) 23:51, 2 June 2012 (UTC)
The data it gets is RGB, so it cannot create wider color space except by quessing...
But does it produce better subpixel lines for example? — Preceding unsigned comment added by 193.184.83.233 ( talk) 12:18, 22 August 2011 (UTC)
I've seen several papers from Sharp that show how to improve the horizontal image reconstruction using using subpixel rendering. One paper even showed how to use metamer SPR to improve the horizontal resolution. However, that technology was developed by Nouvoyance and is owned by Samsung. DisplayGeek ( talk) 23:38, 2 June 2012 (UTC)
On RGB LED-displays, to produce the color yellow you have to fully turn on the red an green leds. On Quattron displays, you have to turn on only the yellow leds, practically halving the energy (for yellow or other bright colors). Today energy consumption is an important aspect, when buying a new tv, especially, when those screens are 40 inches huge or more.-- Sajoch ( talk) 01:05, 19 September 2011 (UTC)
Note also that many LCD displays featuring LEDs for backlighting are marketted as LED displays, while they work nothing like true OLED displays (which are beyond the price range of most consumers in larger sizes, so I think you are think of LCD panels) — Preceding unsigned comment added by 60.242.17.174 ( talk) 13:20, 28 January 2012 (UTC)
I understand that augmenting the number of color channels relative to in which the content was recorded results in an unfaithful reproduction. However, if RGB channels are converted to HSB channels, can't the pixels transition smoothly in the order “red, yellow, green, blue” according to the hue to allow for a smoother hue transition? I believe this is an upside to the downside stated by the response section. I don't have any sources for this, so I'll get on that. Cup o’ Java ( talk • edits) 00:05, 11 December 2013 (UTC)
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Having read the analysis ( http://www.eecs.qmul.ac.uk/~tb300/pub/Appendix_Quattron.pdf) it doesn't seem like they examined it very thoroughly at all. I'm not saying their conclusions are wrong, necessarily, but could they not find their screwdriver that day, or something? Turning the thing on and looking at the colors it produces is obviously of relevance, but the article masquerades as an in-depth investigation and the only mention of the backlight, for instance, is in the caption to a diagram. If it isn't obvious (and even if it is): the backlight is what actually produces the light, so it is of paramount importance, here. -- 2601:140:8000:A739:5C13:6257:6BC0:8EE2 ( talk) 12:45, 31 May 2019 (UTC)
while im confident this subject deserves an article, which will likely expand from a stub as the product reaches market, im reluctant to add too many links, as that may be perceived as overly promotional for this product line. Is this enough for now? love the ad with george takei. OH MY! Mercurywoodrose ( talk) 06:34, 23 March 2010 (UTC)
how does this technology create the yellow color information when video signals are three-color based (RGB, YPbPr, others)? I suppose it just makes the yellow information as any other RGB TV would do, only it then separates it to a specific yellow light emitter? What's the point? The reason we use three-color systems is because all color information can be recreated this way. Sounds pretty gimmicky to me. More info would be helpful. —Preceding unsigned comment added by 64.91.44.34 ( talk) 16:37, 25 March 2010 (UTC)
Dont know how to post this info so if you could please consider it and perhaps put it into proper format and context. If you consider the color spaces that allow negative values for R G B "Deep Color" I think then RGB signals could specify color on the other side or the R G line (see www.cvrl.org)(YOUR PUREST YELLOW CREATED FROM R AND G IS ON THIS LINE. ADDING BLUE BRINGS YOU TOWARDS THE WHITEPOINT. ADDING NEGATIVE BLUE MOVES YOU TOWARDS THE SUPER SATURATED YELLOW. (BOOM!)(75.23.164.143)
You have touched on a point here... newer color spaces allow for negative numbers in the color signal, which allow for a higher color gamut to be represented. MultiPrimary displays are being developed in anticipation for such wider color gamut encoded material. It is the classic 'chicken' vs. 'egg'... in this case, the display is first, content will come later. In the mean time, a gamut mapping algorithm may "guess" at better colors, as the original real world color had to be clipped to the available color gamut of the original NTSC or sRGB color space, because the displays couldn't show anything better anyway.
DisplayGeek ( talk) 23:35, 2 June 2012 (UTC)
Someone PLEASE explain this to me because this is absolutely senseless, I mean red AND green make yellow, so why add it to the pixel list? Murakumo-Elite ( talk) 00:19, 8 April 2010 (UTC)
Do we have any sources from the development of this, and why they chose to add another color instead of changing from three equidistant colors in the spectrum to four equidistant colors, which would surely give you an even larger gamut? Is it because red, blue, and green LEDs are cheaper? —Preceding unsigned comment added by 75.73.70.113 ( talk) 00:53, 23 May 2010 (UTC)
The choice of using a fourth color, yellow, here provides several benefits. First, it allows for a brighter overall display for a given backlight brightness, similar to RGBW color systems. Second, the green color primary can never be right up against the spectral locus, thus is not able to add with the red to produce the more saturated yellows. But a yellow primary can be made to be more saturated than physically realizable R+G color filters can provide. Thus, the color space is expanded, even if only slightly, along the "line of yellows".
In other multiprimary systems, the fourth color is often cyan or emerald green (stoplight green as opposed to the yellowish green of RGB systems) This allows a color system in which the "line of blues" (actually cyans) is reproducable. Presently, the RGB primary system can only show half of the colors that the human eye can see.
DisplayGeek ( talk) 23:46, 2 June 2012 (UTC)
I recently added the "Criticism" section, since Maximum PC Magazine published an article on debunking myths associated with Display technologies. The article goes into great detail about why the Quattron tech is really just a marketing ploy that offers no tangible benefit to image quality. I really feel that the single line "does not in fact produce more colors than a standard RGB set" is not sufficient. There was much more in that article, especially the information about the REC.709 standard and the color balancing performed by studios for home consumption. —Preceding unsigned comment added by Shhewitt ( talk • contribs) 18:24, 24 August 2010 (UTC)
Personally, I question citing ANYTHING from Ray Soneira. Although he presents himself as THE expert, he has repeatedly shown that he does not understand the latest cutting edge research in multiprimary and subpixel rendered displays. By saying negative things about major display inovations, he fits into the false logic of "the truth lies somewhere in the middle"... in this case, his truth is anything but, and should be cited carefully, not as an expert, but as encyclopedic reference to press coverage. DisplayGeek ( talk) 23:51, 2 June 2012 (UTC)
The data it gets is RGB, so it cannot create wider color space except by quessing...
But does it produce better subpixel lines for example? — Preceding unsigned comment added by 193.184.83.233 ( talk) 12:18, 22 August 2011 (UTC)
I've seen several papers from Sharp that show how to improve the horizontal image reconstruction using using subpixel rendering. One paper even showed how to use metamer SPR to improve the horizontal resolution. However, that technology was developed by Nouvoyance and is owned by Samsung. DisplayGeek ( talk) 23:38, 2 June 2012 (UTC)
On RGB LED-displays, to produce the color yellow you have to fully turn on the red an green leds. On Quattron displays, you have to turn on only the yellow leds, practically halving the energy (for yellow or other bright colors). Today energy consumption is an important aspect, when buying a new tv, especially, when those screens are 40 inches huge or more.-- Sajoch ( talk) 01:05, 19 September 2011 (UTC)
Note also that many LCD displays featuring LEDs for backlighting are marketted as LED displays, while they work nothing like true OLED displays (which are beyond the price range of most consumers in larger sizes, so I think you are think of LCD panels) — Preceding unsigned comment added by 60.242.17.174 ( talk) 13:20, 28 January 2012 (UTC)
I understand that augmenting the number of color channels relative to in which the content was recorded results in an unfaithful reproduction. However, if RGB channels are converted to HSB channels, can't the pixels transition smoothly in the order “red, yellow, green, blue” according to the hue to allow for a smoother hue transition? I believe this is an upside to the downside stated by the response section. I don't have any sources for this, so I'll get on that. Cup o’ Java ( talk • edits) 00:05, 11 December 2013 (UTC)
Hello fellow Wikipedians,
I have just modified 2 external links on Quattron. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{
Sourcecheck}}
).
This message was posted before February 2018.
After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than
regular verification using the archive tool instructions below. Editors
have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
RfC before doing mass systematic removals. This message is updated dynamically through the template {{
source check}}
(last update: 5 June 2024).
Cheers.— InternetArchiveBot ( Report bug) 18:25, 20 July 2016 (UTC)