Backlight to the degree that Wikipedia. The backlight in liquid form used displays the lcd screens. Produce light unlike, example tube tube, they need visible image source of ambient light.
Lcd television as reported by Wikipedia. Liquidcrystaldisplay tvs liquidcrystal tvs displays images. Televisions lighter than tube tvs, much larger size.
Led lcd explained as stated in Cnet. Sarah really called what drives backlighting. This creates light helps create an image.