Light Source Types
The light source can be made up of:
- Several Light Emitting Diodes (LEDs)
- An Electroluminescent panel (ELP)
- One or more Cold Cathode Fluorescent Lamps (CCFLs)
- One or more Hot Cathode Fluorescent Lamps (HCFLs)
- One or more External Electrode Fluorescent Lamps (EEFLs)
- One or more Incandescent light bulbs
An ELP gives off uniform light over its entire surface, but other backlights usually employ a diffuser to provide even lighting from an uneven source.
Backlights can be any color. Monochrome LCDs usually have yellow, green, blue or white backlights, while color displays use white backlights that cover most of the color spectrum.
Read more about this topic: Backlight
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