A backlight is a form of illumination used in liquid crystal displays. As LCDs do not produce light by themselves—unlike, for example, cathode ray tube displays—they need illumination to produce a visible image.

What does it mean when something is backlit?

someone or something that is backlit has light shining at them from behind. Synonyms and related words. Words used to describe types of light. backlit. candlelit.

What does backlit mean on a laptop?

A backlit keyboard is a keyboard that contains a light underneath the keys. The backlight illuminates the letters and symbols on the keys to make them visible in low light environments. ... Most backlit keyboards allow you to adjust the brightness levels. Most backlights emit white light.