Excellent color gamut. The TCL 5 Series is a QLED TV that displays a really wide color gamut for HDR content, and it’s a significant improvement over the TCL 5 Series/S525 2019. It has outstanding coverage of the commonly-used DCI P3 color space and good coverage of the wider Rec. 2020.
The EOTF follows the target curve almost perfectly until it rolls off at its peak brightness. The image is a bit brighter in ‘Game’ mode, as you can see the EOTF here.
If you find HDR too dim, use the ‘Dark HDR’ Picture Mode, set Contrast and Backlight to their max, and Local Contrast to ‘Medium’. It makes the image a bit brighter, as you can see in this EOTF. Setting Local Contrast to ‘Medium’ results in a higher EOTF than setting it to ‘High’, but we got a max brightness of 397 cd/m² with ‘Medium’ versus 414 cd/m² with ‘High’.