[ GLOSSARY DEFINITION ]
Display
backlight
The light source behind an LCD panel that illuminates the pixels; OLED displays have no backlight.
Also known as:
LCD backlight
Full Definition & Technical Explanation
A backlight provides the illumination that an LCD panel modulates to form an image, since LCD pixels filter light rather than emit it. It is typically made of LEDs, either along the edge or arranged across the back of the panel.
Backlight design drives local dimming and backlight bleed. Emissive panels such as OLED need none.
Where backlight Matters
Smartphones
Tablets
Frequently Asked Questions
What is backlight?
The light source behind an LCD panel that illuminates the pixels; OLED displays have no backlight.
What terms are related to backlight?
Related Display terms include Tandem OLED, MLA.