Question: what is the difference between qled and oled and uhd?
Answer: OLED is a fundamentally different technology from LCD, the major type of TV today. QLED is a variation of LED LCD, adding a quantum dot film to the LCD "sandwich." OLED is "emissive," meaning the pixels emit their own light. QLED, like LCD, is, in its current form, "transmissive" and relies on an LED backlight.