08/22/2011
LCD screens that harness light energy
The next generation of mobile devices may be able to use their LCD screens to harvest a variety of light, including their own backlight, to be used as energy sources.
The screens will be made up of polarizing organic photovoltaics which will be able to harvest energy from sunlight and ambient light, as well the device's backlight, and convert it into energy to power the device.
The backlight of a device will use up to 90 percent of its power, and up to 75% of the light generated by LCD screens will be lost through the polarizers. The new photovoltaic could recover a great deal of that lost light energy, improving the efficiency of the LCD screen.
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