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UPDATED NOTES FOR NEW FIRMWARE BELOW. The settings you need to change to get the most out of your LG 27GR95QE OLED monitor for SDR and HDR modes.

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PURCHASING
Buy relevant products (affiliate links):

* Buy LG 27GR95QE on Amazon: https://locally.link/GGMR
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USEFUL LINKS FOR THIS VIDEO

* LG 27GR95QE full review: https://tftcentral.co.uk/reviews/lg2...
* Here’s Why You Should Only Enable HDR Mode on Your PC When You Are Viewing HDR Content: https://tftcentral.co.uk/articles/her...

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APRIL 2023 FIRMWARE UPDATE

The new firmware has made only a very minor change to SDR brightness, so our recommendations for SDR mode and brightness settings remain basically the same. For HDR, Gamer 2 mode has now been changed to be much cooler (~8900K) in an effort to cheat a higher peak brightness (~880 nits). Our recommendation for HDR has therefore changed. Stick to HDR 'Gamer 1' mode for the better white point ~6500K, unless you specifically like a cooler image.

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SHADOW DETAIL INSTRUCTIONS

Option 1

1) Download and purchase (small fee) the MediaLight Shadow Detail test patterns from here: https://www.biaslighting.com/products...
2) Run the SDR video from a suitable player full screen and in a dark room, and observe flashing black and grey shade boxes. Allow your eyes time to adjust
3) Box 64 should be black, and boxes 65 and 66 should also be indistinguishably dark (so also black). Ideally box 67 would be the first grey shade you can make out above black

Option 2

1) Or alternatively you could use this simpler but more limited free test pattern: http://www.lagom.nl/lcdtest/black.ph... (maybe best to save it to PC, then view in full screen to get a fully black outer area)
2) Box 1 should be black, but box 2 and upwards should be different visible shades of grey (2 being very dark) ideally.

Adjusting Black Stablizer for both options

1) Adjust display's "black stabilizer" setting to help bring out more shadow detail and the boxes from 67 upwards on video, or box 2 and upwards on the test image.
2) Don't go above a Black Stabilizer setting of 60 or you will cause blacks to be raised significantly and they will look dark grey.
3) Settings of 55 and 60 should cause imperceptible changes to the black depth from a normal viewing position, even in a fully dark room. This may vary by panel but that was certainly the case on our sample. You do not want to raise this setting so high that it causes blacks to be raised visibly.
4) If you move very close to the screen, and are in a fully dark room, you may be able to pick out some VERY minor black depth change if you look at the edge of the screen where the black panel border is, and switch between 55 and 60. It's still a black depth below our measurement device limit (less than 0.002 nits) and from any normal viewing position, and in any normal lighting conditions, we think this is impossible to see. If you find it a problem on your unit, stick with a lower setting like 55.
5) Variations may be different by sample, although we found the most significant improvement to shadow detail was when jumping from 55 to 60.
6) In the video, which has a very fine greyscale image you won't always be able to see all shades from 67 onwards, but adjusting "Black stabilizer" should have helped compared with the default setting of 50
7) Experiment with this setting and find the most appropriate for your uses, eyes, ambient lighting condition, panel sample etc


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