Korean device manufacturer LG, which makes everything from smartphones to washers and dryers, has unveiled a prototype solar-powered e-reader. The unit is 10 cm wide and 10 cm long, weighting in at about 20 grams. It was designed to fit the e-reader display panels LG now makes. LG’s thin-film solar cell technology uses electrodes applied in a thin film onto glass or plastic instead of silicon wafers. This would be second-generation solar cell technology. Solar cell tech can be roughly divided into three generations, all of which are under research simultaneously.
