backlight
Sign in to savethumbnail|Views of a liquid-crystal display, both with electroluminescent backlight switched on (top) and switched off (bottom)
Article
11 sectionsContents
- Light source types
- Usage
- CCFL backlights
- LED backlights
- Backlight dimming
- Diffusers
- Reflective polarizers
- Power consumption
- See also
- References
- External links
thumbnail|Views of a liquid-crystal display, both with electroluminescent backlight switched on (top) and switched off (bottom)
A backlight is a form of illumination used in liquid-crystal displays (LCDs) that provides light from the back or side of a display panel. LCDs do not produce light on their own, so they require illumination—either from ambient light or a dedicated light source—to create a visible image. Backlights are commonly used in smartphones, computer monitors, and LCD televisions. They are also used in small displays, such as wristwatches, to enhance readability in low-light conditions.