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Discussion Starter · #1 · (Edited)
This thread is dedicated to the calibration and user settings for the 2019 LG OLEDs.

The thread will focus on the following:
1) The new Internal Test Pattern Generator.
2) The new HDR Tone Mapping Options and Calibration.
3) Calibration using the Calman LG Autocal process which will allow direct manipulation of the sets internal lookup tables.
4) Gray Scale, CMS, Color Volume, HDR Tone Mapping and Luminance accuracy to include 20%, 50%, 75% and 100% scans to see how the set performs overall.
5) Pros and cons of using alternate white points with this specific set.
6) Recommendations, tips, or other productive suggestions on how to properly calibrate this set and overcome any issues.
7) Near black detail, posterization and any other PQ pro's and con's specifically related to calibration.
8) Performance and user settings for SDR, HDR10, Dolby Vision, and HLG..
9) General discussion of CM Autocal on any new TVs as it relates to comparison with LG's implementation.

The idea of this thread is to encourage contributions from Home Enthusiasts and the Professionals and build a calibration knowledge base with factual, useful information that all can learn from and use as we proceed through the model year.

This thread is NOT for comparisons to other OLEDs for purchasing, for complaining about or posting pictures of Banding and or Tinting, or sharing calibration settings, or "unproductive" discussions of any "hack" that has no technical basis or merit.

This is going to be a very exciting model year with LG's new Alpha 9 V2 processor and all of the picture processing improvements they have promised along with Calman's LG Autocal calibration process
 

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Discussion Starter · #2 · (Edited)
A couple of incredibly interesting and informative videos of Neil Robinson talking about some new calibration features of the 2019 LGs taken by Robert Zohn of Value Electronics at CES to get this thread started.


This 3rd video starts off with motion but then talks about HDR peak luminance and Color Volume.
 

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Let’s start this thread! I am really really interested in the 2019 LG OLED. So I’d like to ask to Mr. Tyler Pruitt @WiFi-Spy and Mr. Neil Robinson @nezil a few questions:
- is the peak luminance value for HDR10 tone mapping also customizable for HDR10 Dynamic Tone Mapping?
- if the white booster is disabled (Peak Luminance OFF) is the white pixel completely turned off or it's just not boosted? I’d bet on the second.
- do the new OLED Motion Pro function settings modify black frame insertion percentage (eg. Low=25%, Medium=37~40%, High=50%)? If not, what it really does?
- apart from the new HDMI controller, does the Alpha9 - Gen2 processor do something better compared to the previous Alpha9?
- I know that the WRGB OLED has four white subpixels, three of which have respectively a Red Green and Blue filter. I have also read that the white light of those subpixels is made by yellow and blue emitters, is that right? Does it still make sense to do a break-in of the panel?
- when will the new sets be available in the old continent?

Thank you very much!

Miki
 

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Do you believe the X-rite i1 to be sufficient hardware for the 2019 auto calibration (for HDR and SDR)?

Spectracal's website recommends the R6 or equivalent.

Would there be downsides to using the i1 over the R6?

I only have a colormunki now that I used on my E6 OLED with 3rd party software (HCFR) to great results, but would certainly consider getting Calman enthusiast and an Xrite i1 for auto cal on the new 2019 OLED's if that combination is appropriate.
 

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Yes, it will be sufficient. The C6 and the i1 Display Pro share the same hardware, the C6 has some more EDRs but, if I remember correctly, you'll find some EDRs also with the i1 Display Pro. Buy the OEM version which can read up to 2.000 nits (just like the C6 HDR2000).
 
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Discussion Starter · #7 · (Edited)
@Anger.miki, @ConnecTEDDD

Sorry, I threw this together quickly late last night and was intending to fine tune the opening this morning.

Edit has been made.
 

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Do you believe the X-rite i1 to be sufficient hardware for the 2019 auto calibration (for HDR and SDR)?

Spectracal's website recommends the R6 or equivalent.

Would there be downsides to using the i1 over the R6?

I only have a colormunki now that I used on my E6 OLED with 3rd party software (HCFR) to great results, but would certainly consider getting Calman enthusiast and an Xrite i1 for auto cal on the new 2019 OLED's if that combination is appropriate.
I agree with @Anger.miki with one caveat. If you don't intend to use a spectrophotometer to profile the I1 Display Pro, the C-6HDR2000 might work better. If there is a spectral difference between the 2019 and previous panels, Spectracal will release a new EDR for the C-6. This will potentially give better results than the generic profiles available to the I1 Display Pro, whether Retail or OEM.
 

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Discussion Starter · #9 ·
Another question along the line's of what Miki was asking about HDR calibration. Is it correct that you first do the normal HDR gamma autocalibration, then measure or read the peak luminance, then optionally set the tone mapping values accordingly?
 

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You are right John. We could do even more: a complete HDR calibration and then proceed with the specification of the tone mapping curve settings. They won’t fight each other, but as you have correctly suggested, the calibration could increase/decrease the non calibrated peak luminance. So it’s better to calibrate first. Good point John!
 

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Discussion Starter · #11 ·
Here are some screen shots of the new 2019 LG HDR Autocal. Please note they are from an Alpha version of CM 2019 used for CES.

The first screen shows the Display controls with the addition of setting the HDR tone mapping below. This is a blow up of the screen Neil was showing in the video.
The second shows 1000 nits tone map curve.
The third shows 4000 nits tone map curve.
The forth shows 10,000 nits tone map curve.
The fifth shows 1000 nit tone map curve vs PQ
The sixth shows 4000 nit HDR tone map full scan.
The seventh shows custom HDR tone curve verification targets.

Also notice, once you use the default or make changes, there is a tone map upload button at the bottom of the screen.
 

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I see it's using deICtCp 240, and not 720 ;)
There no big deal which scalar is being used, just there 2 different ways... its not 720 scalar better from 240.

dEICtCp using 240 scalar trying to match a dE2000 while dEICtCp using 720 trying to match a JND, which Dolby believes that is dE 3.0, but as its known from industry standards that is dE 2.3 (See for example CalMAN's PDF: Visual Color Comparison)
 

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Yes, it will be sufficient. The C6 and the i1 Display Pro share the same hardware, the C6 has some more EDRs but, if I remember correctly, you'll find some EDRs also with the i1 Display Pro. Buy the OEM version which can read up to 2.000 nits (just like the C6 HDR2000).
I agree with @Anger.miki with one caveat. If you don't intend to use a spectrophotometer to profile the I1 Display Pro, the C-6HDR2000 might work better. If there is a spectral difference between the 2019 and previous panels, Spectracal will release a new EDR for the C-6. This will potentially give better results than the generic profiles available to the I1 Display Pro, whether Retail or OEM.
Thanks for the responses, really appreciate it. Seems like I'll be able to enjoy the auto-cal in relatively affordable affordable fashion.

As for the potential lack of updated profiles, I'll just have to hope the community here creates a new profile for the I1 once the 2019 panels come out :)
 

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Thanks for the responses, really appreciate it. Seems like I'll be able to enjoy the auto-cal in relatively affordable affordable fashion.

As for the potential lack of updated profiles, I'll just have to hope the community here creates a new profile for the I1 once the 2019 panels come out :)
That may be somewhat of a forlorn hope. For the most part, users haven't been able to share display profiles. For one thing, matrix-based profiles are individual to a specific meter and specific display. Second, such profiles created in CalMAN are saved against that particular meter's serial number and are encrypted to boot. X-Rite's system of EDRs is based on spectral data. As Ted Aspiotis has said here numerous times, using them assumes the using colorimeter's basic calibration - also based on spectral data - hasn't changed.
 

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Unfortunately, with the already sufficiently accurate picture modes we get with modern TVs, calibrating with a i1 Display Pro (or a SpectraCal C6) is pure exercise. I learned myself (at my expense) that even a profile created with a i1 Pro 2 is not sufficient to increase the accuracy we get OOTB. My suggestion is still to buy a i1 Display Pro OEM and learn how to calibrate, when you’ll feel ready you then loan a reference spectro and create a valid profile. You will be still not so good in low lights though. What I suggested is good if you want to profile your TV by yourself, but if your goal is “only” to have your TV calibrated, the best and cheap solution is to hire a professional.
 
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Hmm interesting, thanks for the feedback.

I do understand that any profiles would be very device/panel specific, I did not realize they are pretty locked down.

I obtained solid results (in my eyes vs stock and theoretically according to my meter) calibrating my E6 with a colormunki and HCFR using another member's colormunki profile made on his E6 that I knew performed very similar to mine out of the box. My main goal was also to dial in the low end IREs to smooth out the panels transitions in near black content - which I resolved. My panel also had visible greyscale color errors that I was able to improve/eliminate. I've not touched HDR and find it to be very acceptable out of the box.

But I can see that newer models have much lower dE out of the box, so it would make sense to wait and see if I feel I need a more in depth calibration before getting geared up.
The thought of utilizing an auto calibration feature does excite me quite a bit though. :)
 

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Discussion Starter · #18 ·
Hmm interesting, thanks for the feedback.

I do understand that any profiles would be very device/panel specific, I did not realize they are pretty locked down.

I obtained solid results (in my eyes vs stock and theoretically according to my meter) calibrating my E6 with a colormunki and HCFR using another member's colormunki profile made on his E6 that I knew performed very similar to mine out of the box. My main goal was also to dial in the low end IREs to smooth out the panels transitions in near black content - which I resolved. My panel also had visible greyscale color errors that I was able to improve/eliminate. I've not touched HDR and find it to be very acceptable out of the box.

But I can see that newer models have much lower dE out of the box, so it would make sense to wait and see if I feel I need a more in depth calibration before getting geared up.
The thought of utilizing an auto calibration feature does excite me quite a bit though. :)
These new sets are nothing like your E6 in terms of calibration. There is virtually no near black issue anymore and with the Sony all you need to do is calibrate SDR and HDR and DV are calculated. Most sets OOTB are good but calibration will always take the PQ to the next level.
 
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Another question for @WiFi-Spy and @nezil:
why have you preferred a TPG internal to the SoC instead of a WebOS app?
 
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Another question for @WiFi-Spy and @nezil:
why have you preferred a TPG internal to the SoC instead of a WebOS app?


Because the WebOS GUI elements are rendered on the screen at the end of the video pipeline so it can’t be used as a pattern generator.
 
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