2018 LG OLED Calibration and User Settings (No price talk) - Page 125 - AVS Forum | Home Theater Discussions And Reviews
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post #3721 of 3727 Old 02-18-2020, 06:02 AM
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Very good. Liberator72 gave us a technique to manually do the grayscale for any HDR mode and then you can copy it to any other grayscale HDR mode. Worked awesome!

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post #3722 of 3727 Old 02-18-2020, 07:39 AM
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Quote:
Originally Posted by SamuriHL View Post
Liberator72 gave us a technique to manually do the grayscale for any HDR mode and then you can copy it to any other grayscale HDR mode. Worked awesome!
Really? Would you mind to share it if you'll have time? Thanks

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post #3723 of 3727 Old 02-18-2020, 08:01 AM
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Originally Posted by chros73 View Post
Really? Would you mind to share it if you'll have time? Thanks
This is his post that documents it. It works great. There's follow up discussion after that post if you want to continue reading about it.

https://www.avsforum.com/forum/139-d...l#post59248252
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post #3724 of 3727 Old 02-23-2020, 10:32 AM
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Outcomes of a 3DLUT E8 calibration verified with a Reference Meter

You can see here the outcomes of a 3DLUT calibration performed with my Klein K10-A and verified with my Jeti 1501:

3DLUT generation and the above verification has been performed using Lightspace, startin with 17x17x17 profile, with OLED=29 and BR=52. A parametric gamma has been used to boost the near black to a decent level.
The outcome speaks for itself. It is important to remarked is that verification has been performed on 1000 (10x10x10 profile) points using the reference meter, i.e. not using for verification the same instruments has been used for 3DLUT generation.

Attached zip contains the verification measurements in LS format and the 3DLUT of the verification.

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Last edited by ebr9999; 02-23-2020 at 11:28 PM.
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post #3725 of 3727 Old 02-23-2020, 10:37 AM
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Advantages of using OLED Zoyd B7 EDR with my E8

I have based by measures on a 3DLUT I have verified with my Jeti as reported in my previous post
See, here, for your convenience, the related verification:

So basically something very close to reference whose gray scale, Primaries and Secondaries, saturation and GCD Colour Checker I have re-measured with HCFR with the following meters:
  • My Klein, profiled and validated Klein Case)
  • My I1d3 Using as display type “Non-Refresh Display”
  • My I1d3 Using as display type “WRGB OLED”
You can see here the outcomes of the comparison of the RGB balance of the WRGB Oled case vs. the Klein reading:

and of the Non-Refresh Case still vs. the Klein reading.

Quite clear the improvement of the WRGB Oled in comparison to the “non refresh” case. From a dE perspective, the WRGB Oled appears even better than the Klein case. That's only appeareance: I have gone through the Jeti measurements and I can confirm the Klein one are well aligned (i.e. minimal delta chromaticity, in the order of .001). From a dE perspective it is clear that using WRGB Oled you have an dE error up to around 1.1 (1.4 for the non refresh case). Checking in the attached files you can see a chromaticity error (dxy) of .002 (0.0035 for the non refresh case).
Have also a look to the primaries (and secondaries):

(Klein readings at the top, WRGB Oled at the bottom), you can see the, the Klein very close to NIST requirements (only a little deviation of Red delta L), in line anyhow with what Klein requires for matrix generation. The WRB Oled readings are anyhow acceptable.
For completeness I have also added the Colour checker view:

True that the HCFR GCD colour checker is quite limited and not comparable to a 1000 patches check, but the dE/ref stays, excluding grays, well below 1.


Comment:
That does not mean that by using a non profiled I1D3 with Zoyd WRGB Oled EDR you don’t need to profile your colorimeter. All my data depend on my I1D3 accuracy, and should be repeated depending the I1D3 you are using. Let’s say I am a lucky guy, but for sure, by using WRGB Oled EDR variances, you increase in dE and chromaticity accuracy.
Attached HCFR files. Hopefully the naming should be clear enough.
Attached Files
File Type: zip Zoyd_WRGB_EDR Check.zip (9.3 KB, 8 views)

TV: LG 55E8PLA, Pana TX-L37ET5E BD/DVR: Panasonic BMR-BWT735 Media player: Teufel Connector 2, HT Rec: ANTHEM MRX 510,
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post #3726 of 3727 Old 02-23-2020, 10:39 AM
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Advantages of OotB fixing by SM tuning

I have measured with HCFR and my profiled Klein, the default ISF dark room of my E8. The only modification I have done was to rise BR to 52, i.e. to the level below the panel switches on. The goak is to measure OotB.
Then I have accessed the Service Menu, and set the chromaticity of the warm white to D65 (Gain control) and taken again the same measures. The idea is to catch what’s happened after SM tuning/recalibration.
As result I have changed gain from (192,173,122) to (192,175,129).
You can see here the related

RGB balance (I have set the SM case as reference)

Primaries and secondaries (SM case on the top)

and GCD colour checker


White balancing is largely improved. The dE at 100 IRE goes from 2.4 to 0.3. Primaries and secondary are marginally affected, but also colour checker is favourably improved.

Conclusions: My TV set has 2000 hours. To achieve these data I have had to change quite substantially the SM gain. The measures that I took after first switch on are quite in line with the OooB case, so I cannot see significant deviations due to the 2000 hours use.
It looks that a quick recalibration on the SM improves OoTB of this TV. Quite important, in my opinion, is a profiled meter. I think this is also of interest in case you want to experiment an alternative white point coordinates.
Attached HCFR files. Hopefully the naming is clear enough.
Attached Files
File Type: zip SM Tuning.zip (11.9 KB, 12 views)

TV: LG 55E8PLA, Pana TX-L37ET5E BD/DVR: Panasonic BMR-BWT735 Media player: Teufel Connector 2, HT Rec: ANTHEM MRX 510,
Front: Woofer&Tweeter, Center: 2Woofer&1Tweeter, Surround: Bose acoustimass 5 series II, Sub: SVS SB2000
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post #3727 of 3727 Old 03-09-2020, 02:22 AM
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Good Morning . After a manual calibration to D65 entering the SM and correcting the RGB gain, I have insignificant errors at the top of the gray scale. However, the lower part presents somewhat higher errors with a slight impulse towards red, which makes me doubt about somewhat red skin tones in SDR. I imagine you could adjust these small errors from the user menu to 20p. I don't know if it would be worth it or that lower part is negligible. Only for SDR since the hdr modes seem correct to me with the 1-point setting of the SM.,
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