HISENSE 65SX

While we’ve been promoting the merits of OLED since the very first OLED TVs arrived, LCD technology has evolved more dramatically than OLED in the years since, closing the performance gap. Does Hisense’s Dual Cell technology, which aims to deliver OLED-level blacks, now level the playing field?

Equipment

How does Hisense attempt to do this? The Dual Cell technology used in this 65SX incorporates a remarkable two million individual dimming zones of control for the backlight. The panel itself has the 8.3 megapixels expected of Ultra-HD resolution. The backlight has close to 2.1 megapixels of control. Note we say that it has 2.1 mexapixels of ‘control’, while the backlight itself has rather less — fewer than 100 zones, we’re told. The trick is the placement of a Full-HD LCD panel between the backlight and the display panel. This extra panel provides that highly granular control over the light allowed through to the main panel. Each one of its pixels controls the light for just four pixels on the main panel.

Hisense had to develop a way of perfectly aligning the two panels. This is one of those ideas that seems obvious in retrospect, but is actually quite difficult to implement. (They tell us it’s a hard thing to do,