LED & LCD TVs:

https://www.amazon.com/dp/B07N719K59?tag=mycosmoline-20 – TCL 75S425 75 Inch 4K UHD HDR Smart Roku TV (2019)

What does LCD as well as LED indicate?
LCD mean fluid crystal screen. The liquid crystals block or permit light to travel through them. The different colours and brightness levels created by the liquid crystals as well as various filters become the picture on the screen. With a couple of exceptions, every LED TV has an LCD present The fluid crystals do not create light, though; that job falls to the backlight. LED stands for light-emitting diode, and these comprise the backlights of some TVs. The LEDs either sit behind the screen (this is called complete selection) or at the edge of the screen (known as edge-lit). The backlight creates the light, which travels through the fluid crystals, together with a couple of other filter layers, to create the picture.

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