LED-backlit LCD
display technology implementation
An LED-backlit LCD is a liquid-crystal display that uses light-emitting diodes (LED) for backlighting instead of cold cathode fluorescent lamps (CCFL). LED-backlit displays use the same TFT (thin-film transistor) LCD technologies as CCFL-backlit LCDs, but offer a variety of advantages over them. The LED bulbs are typically blue or white, but more recently RGB ones have been developed. There are four types of LED-backlit LCDs: Edge-Lit, Direct-Lit, Full-Array Local Dimming (FALD) and Mini-LED, each describing how the LED bulbs are arranged behind the liquid-crystal display for illumination. A variant is QLED, a type of LED-backlit LCD that uses an extra layer film of quantum dots for improved color gamut.
Televisions that use a combination of an LED backlight with an LCD panel are sometimes advertised as LED TVs, although they are not truly LED displays. They largely replaced CCFL-backlit LCD TVs in sales and manufacture by the early 2010s.
Backlit LCDs of any type cannot achieve true blacks for pixels, unlike the totally self-emissive OLED and MicroLED displays. This is because even in the "off" state, black pixels still allow some light from the backlight through. Some LED-backlit LCDs use local dimming zones to increase contrast between bright and dim areas of the display, but this can result in a "blooming" or "halo" effect on dark pixels in or adjacent to an illuminated zone.
Begin with the source’s own compact description: “LED-backlit LCD” is display technology implementation. The dossier treats that line as a proposition to test through LED-backlit, display and technology, not as a finished interpretation.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Sep 2, 2026. The linked authority identifier is Q12810597. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “LED-backlit LCD” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.