Backlighting Options
  There are a variety of backlighting technologies available for LCD's. Whether a display requires
backlighting depends upon the ambient light. The following are some common backlighting methods:

1. LED (matrix or edge lit)
2. EL Panel
3. Incandescent lamp
4. Fluorescent lamp
5. Light guide with reflector


TYPE EL LED CCFL

Feature

  - Even brightness
  - Low heat
  - Thin and light

  - Inverter not required
  - Long life

  - High brightness
  - High heat generation
  - Long life time
  - Lower power consumption

Lifetime
  2,000 ~ 5,000 Hrs

  20,000 ~ 100,000 Hrs

  10,000 ~ 20,000 Hrs

Inverter

  Required when operating
  EL with battery or a DC,
  power supply


  Not required

  Required



 
Technology