Saturday, August 15, 2009

LED/LCD monitor

LED backlight cuts LCD TV power consumption
via EE Times India:
Mao Yu-Hai, chief scientist at Power Analog Microelectronics (PAM). explains:
In LCD panels and LCD TVs, most of the power is consumed by the backlight source. These days, almost all desktop LCD monitor and LCD TV utilise CCFL lamps that consume a lot of electric power since they have to be driven by high voltage inverter.
'When using LED backlight, the power consumption can be reduced by 50 per cent. In Samsung's 40inch LCD TV, it consumed 170W. After it changed to LED backlight, it only consumed 100W,' Mao said.
Besides the power saving advantage, LED backlight is capable of realising colour saturation beyond NTSC ratio of 100 per cent and can replace colour filter."