General > General Technical Chat
An expensive TV is a poor investment, and people spend FAR too much on them
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tooki:

--- Quote from: BrianHG on February 07, 2022, 12:42:24 am ---
--- Quote from: tooki on February 06, 2022, 02:47:01 pm ---
--- Quote from: BrianHG on February 06, 2022, 12:49:33 pm ---Warning, QD-OLED has just hit the market.

Unlike OLED, true pure colors (no stupid white pixels to boost OLED's weak brightness), 3 year no-burn in guarantee, brighter overall white level and also already available in desktop PC monitors.

--- End quote ---
Adding the white subpixel isn’t stupid, it’s smart. Any time you have all three RGB subpixels lit simultaneously, the “common” brightness level is just white. (E.g. if the RGB levels are 230/175/60, then you can subtract 60 from all of them and instead run the white subpixel at the equivalent brightness of 60/60/60, sparing the blue subpixel some wear.)

Mind you that like plasma, OLED really isn’t intended for high ambient light environments; LCD is better for that. But in ordinary household light levels they’re totally fine.

--- End quote ---
LOL... Right... OK....

--- End quote ---
Why don’t you actually explain why you disagree instead of just a dismissive smirk?
PlainName:

--- Quote --- Yes, by having all the OLEDs the same colour, one issue of ageing is addressed - but they are still going to age.
--- End quote ---

The LEDs in an LCD TV will age too, and eventually become too dim. But I guess the effect will be constant across the panel (although as they dim, perhaps the colour will subtly change so you might get the same effect as the OLEDs, just in a different means of getting there).
BrianHG:

--- Quote from: tooki on February 07, 2022, 11:41:09 am ---
--- Quote from: BrianHG on February 07, 2022, 12:42:24 am ---
--- Quote from: tooki on February 06, 2022, 02:47:01 pm ---
--- Quote from: BrianHG on February 06, 2022, 12:49:33 pm ---Warning, QD-OLED has just hit the market.

Unlike OLED, true pure colors (no stupid white pixels to boost OLED's weak brightness), 3 year no-burn in guarantee, brighter overall white level and also already available in desktop PC monitors.

--- End quote ---
Adding the white subpixel isn’t stupid, it’s smart. Any time you have all three RGB subpixels lit simultaneously, the “common” brightness level is just white. (E.g. if the RGB levels are 230/175/60, then you can subtract 60 from all of them and instead run the white subpixel at the equivalent brightness of 60/60/60, sparing the blue subpixel some wear.)

Mind you that like plasma, OLED really isn’t intended for high ambient light environments; LCD is better for that. But in ordinary household light levels they’re totally fine.

--- End quote ---
LOL... Right... OK....

--- End quote ---
Why don’t you actually explain why you disagree instead of just a dismissive smirk?

--- End quote ---
    What if you want 100% red.  Or 100% Green, or 100% blue, or 100% yellow, or 100% cyan, or 100% magenta.  You wasted surface area of each pure color pixel for white loosing the maximum possible color saturation brightness.  1 chip DLP projectors did the same thing when they went from the first original RGB color wheel filters in the early 2000s to the newer ones with a transparent and yellow portions of the newer color wheel to get brighter whites known as 'Brilliant Color'.  It messes up the natural colors through processing to achieve a stronger brightness, but false color rusty looking image wherever there supposed to be rich skin tones and rich greens and blues look dark.  The side-by-side photographs of OLED vs QD-OLED from CES shows this exact same color limitation errors.  Disabling the 'Brilliant Color' on those 1 chip DLP projectors fixes the color to it's proper levels, but with that color wheel having that dumb white and yellow sections now not in use, you get a net loss of around 40% brightness where as if they kept the original full RGB color wheels, this would have only been around a 20% loss of brightness, but true color.
    Take a zoomed up magnification look at the RGBW OLED screens.  The white pixels are the largest ones wasting the potential output capability of the much tinier red/green/blue which must now fit in the remaining available space.
    If the 'white' was such a good idea, then the same would have been done with every LCD screens and even old CRTs which would have been manufactured with 4 guns and 4 types of phosphor, RGBW, to get those brighter whites.  The white is a cheap countermeasure fix hoping that people don't know what the original image supposed to look like and without a reference monitor side-by-side, you know tricks are being made to fool you into thinking what you have is correct and king when the colors are actually all wrong.  Never accept backup correction countermeasures for the true thing as those tricks always fail to give the true representation whenever compared to the original source unless your source image doesn't exceed a combination of 40-50% color saturation+brightness drive.
PlainName:

--- Quote ---what the original image supposed to look like and without a reference monitor side-by-side, you know tricks are being made to fool you into thinking what you have is correct
--- End quote ---

Isn't this verging on audiophoolery territory? Surely, unless you are trying to make a backup or do absolute measurements, the criteria is whether it is good to watch (or listen to)? Does it have to be exactly as the camera saw it so long as it seems to be OK? If you're watching with a daylight background whatever you're watching will seem different to the same thing when viewed with a 2700K tungsten lighting background, so fooling the eye and brain isn't exactly unusual.
BrianHG:

--- Quote from: dunkemhigh on February 07, 2022, 02:36:40 pm ---
--- Quote ---what the original image supposed to look like and without a reference monitor side-by-side, you know tricks are being made to fool you into thinking what you have is correct
--- End quote ---

Isn't this verging on audiophoolery territory? Surely, unless you are trying to make a backup or do absolute measurements, the criteria is whether it is good to watch (or listen to)? Does it have to be exactly as the camera saw it so long as it seems to be OK? If you're watching with a daylight background whatever you're watching will seem different to the same thing when viewed with a 2700K tungsten lighting background, so fooling the eye and brain isn't exactly unusual.

--- End quote ---
:palm: You have got to be kidding me.  A 40% error in saturated color picture drive capability is somehow equivilant to the BS of audio foolery issue of copper cable for your speakers VS the 10k$ speaker cables which have NO MEASURABLE effect on the output?  How in the world can you equate a 40% measurable photograph-able difference to a 0% measurable actual difference of the audio foolery BS.

Just look at the picture at the 11 second point.

Does that look like audio foolery?   :palm:
The color difference is identical to the stupid 'Brilliant Color' mode on my DLP projector, except that the QD-OLED is full brightness.
(Yes, I had to disable 'Brilliant Color' on my projector to see the difference, otherwise all three images are approximately equivilant except for brightness.)  My studio grade CRTs show the largest difference between the 3 examples.


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