What are the differences between Eye Protect, Bright Intelligence, and Bright Intelligence Plus?

Eye Protect:built-in light sensor detects light conditions around the monitor and adjusts the backlight automatically.

Bright Intelligence (B.I.):built-in light sensor works to detect the ambient light, image brightness, and contrast, and then balances screen settings automatically.

Bright Intelligence Plus (B.I.+):same as above but more advanced sensor also takes color temperature into account when optimizing screen settings for the best image quality.