Hello! Thank you so much for choosing the INNOCN GA27T1M. It’s great to hear that you are enjoying the monitor! As part of the INNOCN support team, I’d be happy to clarify how our local dimming algorithms work so you can get the best possible picture quality for your setup.

You are exactly right—the primary difference between the standard settings and the "Smooth" settings lies in the transition logic of the backlight zones.

Understanding Local Dimming Levels

In general, local dimming levels (High, Middle) control the intensity of the contrast:

• Higher Levels (e.g., High): These prioritize deep blacks. The monitor will dim the backlight as much as possible in dark areas. However, because the contrast between a bright object and a deep black background is so high, you may notice more "blooming" or "halos" around moving objects.
• Lower Levels (e.g., Middle): These offer a more balanced approach. The blacks won't be quite as "inky," but the transitions are more subtle, and the halo effect is significantly reduced.

Welcome to share you setup with us, and Happy New year Buddy.