It's edge - lit, with no fancy form of local dimming, it's not the brightest TV, but a good black level performance ensures images always look dynamic. (t3.com)
For the best black level performance, view in a room with some ambient light, rather than full dark room conditions. (t3.com)
As an OLED display, you should expect perfect black levels that look brilliant in any light, no matter the brightness level. (androidheadlines.com)