Originally Posted by ynotgoal
Certainly improved materials will be used over time which will improve color space. Here is a report that LG is planning on using improved color filters to improve color comparable to quantum dot films but without using the films. It is expected to be used in 2018 models for both LCD and OLED.
Thanks for this link, but my Korean is not too good. If there are any important tidbits that anyone can translate, that would be great, but otherwise I'll just go with your recap.
Are the 'improved color filters comparable to quantum dots but without using the films' patterned quantum dots for color filters (QDCF), perchance? Are they some technology that 'transforms' light spectra versus just blocking it like conventional color filters?
Getting to wider color gamut through one means or another seems like a done deal, either through improved OLED materials or improved color filters, but I suspect LG is going to have to do something about the poor efficiency of their WOLED architecture sooner rather than later.
If Nanosys and rumors are to be believed, we will see LED/LCDs with R+G QDCF & Blue backlight by next year. This will deliver a ~3X improvement in brightness (both peak and sustained/full screen) at relatively modest cost, which will bring LED/LCD brightness up over Dolby's HDR mastering target of 4000 cd/m2.
Now we can argue about how critical the HDR-brightness arm's race is and how successful HDR will prove to be, but there are other benefits increased efficiency / peak brightness will bring to OLED:
-lower power consumption (with all else being equal).
-total elimination of ABL for any normal viewing.
-the excess brightness to finally introduce persistence-based motion blur improvements (BFI/scanning display).
-better head-to-head showing against bright LED/LCDs on the showroom floor where Samsung will be touting the benefits of increased brightness, color-space, and HDR.
So I see it as pretty much inevitable that LG will need to introduce light-transforming color filters based on QDDF or something equivalent by 2019 (assuming Samsung successfully launches QDCF-based QLED/ELCDs next year as expected).
Blue QDCF remains an issue and WOLED is already at a disadvantage versus LED/LCD, which can rely on a blue-LED backlight to gain a full 3X in efficiency.
With existing WOLED, the best LG can do is use standard Blue Color Filter combined with R+G QDCF to gain 1.5X in efficiency/output (Red and Greed shrink to 0.5 size X 3X efficiency while Blue and White grow to 1.5X size X 1X efficiency).
Again, assuming R+G has been fully industrialized and proven by Samsung at least a year earlier, I see it as inevitable that LG will introduce OLED w/ R+G QDCF which will get them to peak brightness of 1500 cd/m2 for the HDR/color-space wars and will allow them to deliver ABL-free SDR for any peak brightness calibration below 225 cd/m2...
If/when Blue QDCF gets industrialized (or a long-lifetime BOLED becomes viable) there is a further efficiency / brightness gain of +33% to be had (to peak brightness of 2000 cd/m2) to bring OLED up to parity with LED/LCD as far as light efficiency, but there is no rush for that and no reason to take any risk...
Another side-benefit of QDCF on OLED is that the cost difference can finally be used by LG to put some meat on their product line-up/strategy: low-end base B/C models have to QDCF while E/GW models deliver improved picture quality at a price premium...
Anyone else have an opinion as to the time after the introduction of mass-market QDCF LED/LCD TVs before we see the technology introduced on OLEDs?