If you’re hankering to upgrade to an 8K screen, Sony offers two choices: the Master Series Z9J, which uses a Full Array LED backlighting system, and the Z9K which has a MiniLED backlight (below). Available in 75- and 85in screen sizes, the Z9J upgrades Sony’s Cognitive processor to work with 8K sources (of which there are not many Jun 20, 2021 · 397K views 2 years ago. Visit us for all things Home Audio Visual - https://www.smarthomesounds.co.uk In this video we cover the key differences between OLED and Full Array LED TVs to help COBPg.