Seoul, South Korea, MagnaChip Semiconductor Ltd. has developed the technology for Smart Mobile Luminance Control (SMLC), which is a backlight control algorithm with low-power consumption for LCD driver chips.
The SMLC algorithm can reduce the luminance of LCD backlights by up to 50% through the analysis of the image data in LCD driver chips and the related adjustment of power consumption rates in the LED drivers, said MagnaChip. At the same time, the SMLC algorithm optimizes the luminance of the display by minimizing image distortion through an adaptive image signal processor in LCD driver chips.
LCD driver chips that apply this technology should be able to decrease power consumption in LCD modules by up to 50%, which depending on the display technology and size, may double battery life in mobile phones, said MagnaChip.
The SMLC technology offers four motion modes including user setting mode, user interface mode, still image mode and moving picture mode. These functions allow users to select their optimal power saving rates based on individual preferences. The SMLC technology also supports varied LCD backlight adjustment signals such as pulse width modulation signals and digital serial and parallel signals.
MagnaChip has released an engineering sample of its TA8551 product, a single driver chip for WQVGA TFT-LCDs, which incorporates the SMLC technology. The company expects that this technology will be incorporated into a majority of its future mobile display driver IC products.
Product information: display driver ICs
MagnaChip Semiconductor, www.magnachip.com