The S90C incorporates a 4K QD-OLED panel. The "QD" ahead of "OLED" suggests it employs a display technological innovation known as quantum dots, which can supply a nearly unequalled variety of colours. The "OLED" portion stands for "natural and organic gentle emitting diode," which results in an infinite distinction ratio. https://shanexdjot.wikitidings.com/5701056/receiver_options