that use color filters, such as blue/UV organic light-emitting diode (OLED), MicroLED, or QNED display panels. QD-OLED displays, which use blue OLED panels with QD color filters, started coming to market in 2023. QD-OLED and QD-LED displays can achieve the same contrast as OLED and MicroLED displays with "perfect" black levels in the off state, unlike LED-backlit LCDs.

Working principle

The idea of using quantum dots as a light source emerged

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