Mirasol displays eliminate the need for backlights by reflecting light between two conductive plates.

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High-end sets with LED backlights (as opposed to fluorescent backlights) are incredibly energy efficient and physically much lighter and thinner than plasma displays.

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The HP ZR2740w, ZR2440w, ZR2240w and ZR2040w displays come with light-emitting diode (LED) backlights for a slim industrial design, more robust colors and the elimination of mercury.

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The 15-inch Series 9 is far skinnier and lighter than the MacBook Pro, then, but it matches the MBP in build quality, thanks to a rock-solid unibody aluminum chassis and some funky aquamarine keyboard backlights.

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The panel is built using Samsung's existing manufacturing processes, only instead of using a glass substrate for the TFT it uses resin, which results in a tiny reduction in thickness (fro 0.5mm to 0.44mm), but a huge reduction in weight from 130g to just 28g, excluding backlights.

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