1. backlight - Noun
2. backlight - Verb
(uncountable) Light shining from a source behind the object of interest or attention.
The backlight from the sunset cast the pier and the crowd in silhouette.
Egg candling uses backlight to look for chick embryos.
(countable) A spotlight that illuminates a photographic subject from behind.
(uncountable) Light that is behind a photographic subject.
(countable) A light attached to an LCD display.
(countable) The rear window of a motor car.
backlight (third-person singular simple present backlights, present participle backlighting, simple past and past participle backlighted or backlit)
(transitive) To illuminate something from behind.
A backlight sits behind these keys, but there's only one brightness level. Source: Internet
Before LG Enhanced IPS was introduced in 2009, the additional transistors resulted in blocking more transmission area, thus requiring a brighter backlight and consuming more power, making this type of display less desirable for notebook computers. Source: Internet
Currently ambient sensors can vary the intensity of the backlight as required, but this technology would tweak the color to improve the visual appeal. Source: Internet
A 7.0 WVGA liquid crystal panel capable of displaying even small characters or maps clearly and distinctly, digital transmission, and an LED backlight are adopted. Source: Internet
All keys have three levels of backlight, and key travel is ample enough that I don't mind using it for a full day of typing. Source: Internet
And because the Prime 13 doesn't require a driver, you can control the brightness of the backlight just by way of a key combination. Source: Internet