LG is implementing a concept never used or heard before. LG has developed a type of LCD panel, which uses the sunlight to power the monitor, while it is used outside. It uses reflective plates in the backlight panels to reflect the sunlight so that you are able to use your device outdoors. Interesting point to note is that it consumes 1/4 th of energy compared to what is consumes when used indoors. This is due to the fact that it has to use backlight to light up the screen, which consumes a lot of energy.
There is no words when will be release for officially. However, LG has plans to debut it at CES 2009, which is going to be held next month.