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 Post subject: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 11:02 am 


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From what I understand, there is still no true RGB OLED screens so far, Samsung tried to make some, but abondoned before releasing any. LG makes hybrid W-OLED screen and Samsung is attemping to make hybrid QD-OLED screens.

None of which are true RGB OLED.

Here is the difference:

Image


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 12:42 pm 


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The problem with "true RGB" OLED screens is that the blue diode has a comparatively limited service life. So, for extended service life devices like TVs, the W-OLED solution ist preferred. OLED smartphone screens are (generally?) based on RGB OLEDs (I guess they enable some space saving, and people tend to replace their smartphones every 1 to 2 years, so the limited service life isn't a problem).


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 1:03 pm 



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they really need some kind of breakthrough in manufacturing oled screens.

they have been out long enough now, you would think that yeilds would be way up and that oled would have replaced most other types of tvs by now.

but they are still a premium technology.


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 1:10 pm 


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With Micro LEDs on the horizon, I honestly think OLED displays are a dead end.


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 1:36 pm 


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Both W-OLED and Micro-LED uses color filters (OLED uses an organic color filter and Micro-LED uses an inorganic color filter).

So not as good as a Samsung Real OLED TV:

https://www.oled-info.com/samsung-real-oled-tv

https://www.youtube.com/watch?v=MsRrw_XJVfo

And it only costs 9k!

Well that is if it was ever released, which doesn't look like it was ever made available for purchase?


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 1:45 pm 


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The difference is that Micro LEDs won't go bad that fast.

EDiT: Micro LED doesn't seem to use color filters. Also, there is no such thing as inorganic and organic color filters.


Last edited by Thomago on Fri Jul 13, 2018 1:54 pm, edited 1 time in total.

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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 1:53 pm 



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I imagine any OLED BVMs and PVMs would use true RGB.


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 2:01 pm 


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Are there such devices? If there were, I imagine they wouldn't use RGB OLEDs, as color accuracy would go to hell rapidly.


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 2:14 pm 


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Thomago wrote:
With Micro LEDs on the horizon, I honestly think OLED displays are a dead end.

I can't imagine Micro-LED becoming affordable-enough before something like a decade from now.
And right now investment in OLED is soaring, not just from LG.
So I would expect OLED to become much more common than it is today and reach sales challenging LCD on the TV market.
(not on the monitor's though, no way)
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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 2:28 pm 


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According to news articles I've read, Micro LED might become a thing in consumer devices next year. We'll see how fast market diffusion is from then on...


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 2:39 pm 


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For mobile devices yes that would be plausible, but TVs and monitors? I don't think so.
IIRC the only existing TV-sized protos took a lot of time to make and cost the equivalent of a small house.
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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 2:46 pm 


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Well, at least MicroLED monitors are technically plausible, in contrast to OLED monitors.

We'll see!
Btw, nice that this stuff stays exciting :D


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 2:53 pm 


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It sure sounds better and more versatile than OLED, and is probably the reason why several of the ususal suspects didn't invest like LG or only a little.
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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 3:03 pm 


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Btw, have I ever mentioned how perfidious I think OLED smartphones are?

First, the customer buys a new smartphone with a sparkly new OLED screen. Then, due to use (bad customer!), the screen degrades. After about a year, or two the screen has become considerably worse. The customer gets to compare his henceforth old smartphone with a new smartphone and lo and behold - the new smartphone's screen is much much better! Wow, how fast technology advances!!!
So, the customer buys a new smartphone with a sparkly new OLED screen...

Of course that's exaggerated, but I wouldn't wonder if manufactures took OLED degradation as a feature, not as a problem.


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 3:17 pm 


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I think they've always considered that people would regularily buy new smartphones anyway.
Honestly around me I've seen extremely few carrying a 3~4 years old model like mine lol.
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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 3:19 pm 


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I recently bought a new smartphone and as I plan to use it for about 4 years (like the one before it), OLED was a no-go.


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 4:00 pm 


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Thomago wrote:
EDiT: Micro LED doesn't seem to use color filters. Also, there is no such thing as inorganic and organic color filters.


Micro LED uses color filters, you can google it.

The "O" of OLED stands for "Organic", Micro LED just like non-true RGB OLEDs uses color filters, however the color filter is inorganic as it's made of gallium nitride.


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 4:15 pm 


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The MicroLED-technology's diodes are based on gallium nitride. There are no additional gallium nitride color filters in there.

I mean... where do you see a "filter" here?

Image


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 4:32 pm 


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True RGB DISCOLED !!!*

This is the future 8)

(requires viewer to dance. lagless.)

Image
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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 4:35 pm 


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Lagless but not legless!


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 4:45 pm 


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What you show is only theoretical, that is only IF they use True RGB MicroLED, this is how OLED was presented as a few years ago and instead they cheapened out in the end and gimped it with W-OLED.

Here is an actual patent for MicroLED that shows the required use of a color filter to reproduce colors:

http://www.prweb.com/releases/2015/04/prweb12681038.htm

Image

Anyway I don't really care about MicroLED it is years away and even more years away from being affordable, OLED isn't even that affordable yet still and it's been on the market for a few years already.

After searching for a bit, I found that it does seem like Samsung has at least managed to release a True-RGB OLED TV back in 2013, the KE55S9C:

https://www.samsung.com/uk/tvs/curved-oled-s9c/

Though it doesn't look like they made too many of these, which is not surprising seeing as how much they cost when they released.


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 4:54 pm 


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The point is, MicroLED doesn't use filters per se. Saying it does would be like saying OLED always uses filters. It doesn't, which is why you opened this thread.


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 5:05 pm 


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Addendum: Also, "non-true-RGB" OLEDs are somewhat of a neccesity for long-term use (well, long-term for OLED standards), as the red, green and blue OLEDs deteriorate with different rates (blue OLEDs deteriorate much much much faster). With MicroLED, you don't have this problem, which makes "true-RGB" MicroLEDs more practicable than "true-RGB" OLEDs ever were.


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Fri Jul 13, 2018 11:03 pm 



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I'm not sure if the sony BVM are true rgb oleds but they seem pretty nice.

https://www.youtube.com/watch?v=ESzWY0hW85Y&t=357s

I'm still holding on jumping the oled bandwagon myself. They seem really nice but still got plenty of things they need to iron out before i decide to purchase one. Biggest ones for me will be image retention seeing as i will be using mine for doing some 4:3 retro gaming.


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Sat Jul 14, 2018 12:04 am 


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Lots of discussion in this thread wishing for RGB OLED, nothing saying why WRGB is an issue though. Why does it matter at all that they use white diodes?


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Sat Jul 14, 2018 12:50 am 


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bobrocks95 wrote:
Lots of discussion in this thread wishing for RGB OLED, nothing saying why WRGB is an issue though. Why does it matter at all that they use white diodes?


Adjacent pixels share the white. You get full luma resolution and half the color resolution.

https://www.avsforum.com/forum/166-lcd- ... ation.html
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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Sat Jul 14, 2018 3:31 am 


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orange808 wrote:
bobrocks95 wrote:
Lots of discussion in this thread wishing for RGB OLED, nothing saying why WRGB is an issue though. Why does it matter at all that they use white diodes?


Adjacent pixels share the white. You get full luma resolution and half the color resolution.

https://www.avsforum.com/forum/166-lcd- ... ation.html


I was taken aback by this, but that only applies to LG's RGBW LCD's, not their OLED's. So again not sure how it's an issue.


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Sat Jul 14, 2018 5:10 am 


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Mhm... maybe overall brightness? Newer OLEDs use an additional white diode (see Lawfer's opening post) to counteract this.


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Sat Jul 14, 2018 6:45 pm 



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Xyga wrote:
Thomago wrote:
With Micro LEDs on the horizon, I honestly think OLED displays are a dead end.

I can't imagine Micro-LED becoming affordable-enough before something like a decade from now.
And right now investment in OLED is soaring, not just from LG.
So I would expect OLED to become much more common than it is today and reach sales challenging LCD on the TV market.
(not on the monitor's though, no way)

AUO is supposedly going to be shipping mini-LED panels toward the end of the year, that should be a nice step between the two.


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 Post subject: Re: Have any manufacturers ever made true RGB OLED screens?
PostPosted: Sat Jul 14, 2018 7:25 pm 


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Yes mobile-sized displays, but imagine how much time will pass before monitor, then TV-sized panels will be manufactured at reasonable cost?

Took LCD and OLED well over a decade and more about two decades from the first consumer market applications with tiny screens to broadly available and affordable large monitors and TVs.

Micro-LED is merely emerging. Again; TV-sized Micro-LED displays right now exist, but cost about the price of a house or a supercar.
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