A past tense and a past participle of backlight.(verb)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "backlit" in a sentence
"It's LED-backlit, which is more energy efficient, removes the mercury and arsenic in normal computer screens."
"Also like the Pro versions, the 13. 3-inch display is now LED backlit, which is better for both power consumption and environmental concerns."
"(though not LED backlit, which is actually a deal-breaker for me)."