![]() We tested local dimming with Local Contrast set to 'High'. Overall, the local dimming improves the contrast because it helps the TV deeper blacks, but it also causes bright highlights to be more dim. Fast-moving objects have visible transitions between the dimming zones, which may be distracting. Subtitles don't get very bright either, and there's blooming around them too, as you can see in this photo. It's worse than the local dimming on the TCL 5 Series/S535 2020 QLED because that TV has less black crush and less blooming. It's noticeable with a star field, as the stars appear bright at first, but as they become smaller, the local dimming fails to light them up, causing intense black crush. ![]() Lights pop a bit, but when the light sources are extremely small, they don't pop as much, and there's some black crush. ![]() Due to the blooming, if there are light sources near people's faces, it causes bright spots near or on faces. This TV uses Mini LED backlighting, with about 220 local dimming zones, and there's visible blooming around bright objects. The TCL 55R635 has a mediocre full-array local dimming feature. Update : Uploaded the real content local dimming videos. Unfortunately, it's still aggressively crushing blacks in HDR and SDR. Update : We rechecked the TV on the latest firmware, 10.0.0 Build 4209, to see if it was still crushing blacks. We remeasured the pre-calibration in a few different picture modes. Retested HDR peak brightness and reshot local dimming video. Uploaded the real content local dimming videos. We rechecked the local dimming feature on the latest firmware to see if it's still crushing blacks. ![]() We uploaded the initial brightness measurements and uniformity photos for the Accelerated Longevity Test. We bought and tested the TCL 6 Series/R655 2022 QLED, and added a few relevant comparisons to this review. We uploaded the brightness measurements and uniformity photos after running the TV for two months in our Accelerated Longevity Test. We uploaded the brightness measurements and uniformity photos after running the TV for four months in our Accelerated Longevity Test. ![]()
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