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 |
|
|
|
|
