LEDs
2008 4 18
GE ( ) OLED LED'S GE OLED
GE OLED 15 (lm/W) GE 30lm/W GE 100 lumens/W
2010 OLED 
- OLEDs
- LEW -
- OLED
- Konica Minolta - EL
OLED (LCD) 
