I asked LG if it could provide comment on these reported issues, and I’m pleased to say it has responded in impressive detail.
"3) Technicolor Expert Mode
LG has been working with Technicolor to bring the most accurate reproduction of what was seen by content producers in the grading suite to the home.
Created jointly by Technicolor’s renowned color scientists and experts and LG’s picture quality engineers, the mode accurately recreates the artistic intent of storytellers, and has been optimized to display content in a dark environment, as it is viewed and approved by directors and cinematographers in Technicolor’s industry leading facilities. In order to truly appreciate content the way the creatives intended, the mode is not intended to be viewed in bright environments, meaning much of the subtlety of the image will be lost if viewed in this way.
As such, there are key differences among Cinema Mode and Expert Mode, among which:
1) The default brightness is set to 100 nits for technicolor Expert Mode (by comparison Cinema Mode is 2.5 times brighter)
2) The mode has all processing (Picture Quality Enhancement Processing, Object Depth Enhancer, Adaptive Color Enhancer, Sharpness Enhancer) turned off, to emulate the working conditions in the grading suites.
3) Viewers can watch the content as close as it would appear to the original content in 24p with True Motion off. Disabling True Motion comes as a measure that Hollywood directors - such as in below article - have been asking for in order to accurately represent the artistic intent (https://gizmodo.com/
In addition to adjusting the peak luminance, Technicolor has identified an alternative white point that accounts for the difference in colour perception affecting all wide color gamut displays, including, but not limited to, LG OLED.
Technicolor color scientists consider this white point is a close representation to D65 used for creating content, and is based on CIE 1931 2 degree target of 0.300, 0.327 rather than the traditionally used, but problematic 0.313, 0.329.
Previously, metameric correction data has only previously been offered for professional displays; LG OLED TVs are the first consumer product to offer a picture mode with metameric correction
. LG is at the forefront of research into this area; for more details see our SID white paper on the topic here.
In order to implement these changes, only the default settings to the Technicolor Expert Mode have been changed in the 4.10.05 update. If you would like to revert to the previous firmware behavior, changing the OLED Light setting and White Point settings to the previous defaults of 80 and Warm 2 respectively will achieve this.”
This really is an impressively comprehensive response from LG that shows a rare level of willingness to engage with its customer base.