Editing Backlight (section)

== Light source types ==
The light source can be made up of:<ref>{{Cite book|url=https://books.google.com/books?id=8GGJeOC7UO8C&dq=External+electrode+fluorescent+lamps&pg=PA24|title=Introduction to Flat Panel Displays|first1=Jiun-Haw|last1=Lee|first2=David N.|last2=Liu|first3=Shin-Tson|last3=Wu|date=20 November 2008|publisher=John Wiley & Sons|isbn=978-0-470-72194-0 |via=Google Books}}</ref>
* [[Light-emitting diode]]s (LEDs)
* An [[Electroluminescence|electroluminescent]] panel (ELP)<ref>{{Cite book|url=https://books.google.com/books?id=Ae9GREa9ozsC&dq=electroluminescent+backlight+laptop&pg=PA227|title=LCD Backlights|first1=Shunsuke|last1=Kobayashi|first2=Shigeo|last2=Mikoshiba|first3=Sungkyoo|last3=Lim|date=15 April 2009|publisher=John Wiley & Sons|isbn=978-0-470-74483-3 |via=Google Books}}</ref><ref>{{Cite web|url=https://books.google.com/books?id=_H7d93IWwogC&dq=electroluminescent+backlight+laptop&pg=PA112-IA1|title=PC Mag|date=11 October 1988|publisher=Ziff Davis, Inc.|via=Google Books}}</ref><ref>{{Cite web|url=https://books.google.com/books?id=mNYL8b0kUnIC&dq=sharp+pc+7000+electroluminescent&pg=PA54|title=PC Mag|date=11 March 1986|publisher=Ziff Davis, Inc.|via=Google Books}}</ref>
* [[Cold cathode|Cold cathode fluorescent lamps]] (CCFLs)
* [[Hot cathode]] [[fluorescent lamp]]s (HCFLs)
* [[Electrodeless lamp|External electrode]] [[fluorescent lamp]]s (EEFLs)
* Formerly, [[incandescent lightbulb]]s<ref>{{Cite web|url=https://hackaday.com/2019/10/15/ben-krasnow-looks-inside-film-camera-date-stamping/|title=[Ben Krasnow] Looks Inside Film Camera Date Stamping|date=15 October 2019}}</ref>

An ELP gives off uniform light over its entire surface, but other backlights frequently employ a [[Diffuser (optics)|diffuser]] to provide even lighting from an uneven source.

Backlights come in many colors. [[Monochrome]] LCDs typically have [[yellow]], [[green]], [[blue]], or [[white]] backlights, while color displays use white backlights that cover most of the [[color spectrum]].