What's more, Nikon's Scene Recognition system draws upon the 420-pixel RGB color 3D Matrix Meter for outstanding exposures under a variety of lighting conditions by integrating a database of tens of thousands of sample images.

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LG's unique Four-Color Pixel system features a white sub-pixel, which works in conjunction with the conventional red, blue, green setup to create the perfect color output.

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The only task left is to display the proper color for each lit pixel.

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For color images, each pixel contains 24 bits of information, meaning that, uncompressed, even this very grainy picture would take up an entire megabyte of computer memory.

FORBES: Technology briefing

So Jepsen changed the pixel layout, eliminated some costly color filters and changed the electronics so the display could be read even if the computer processor were dormant.

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Quattron color technology adds a yellow pixel to the standard red-green-blue sub-pixel structure, delivering more than a billion colors.

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Red claims the dedicated CMOS sensor means no color debayering, yielding a one-to-one pixel count and 15-20 percent bump in effective resolution compared to its chromatic cousin.

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The Foveon X3 direct image sensor captures all primary RGB colors at each and every pixel location with 3 layers, ensuring the capture of full and complete color.

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The most compelling remains Pixel Qi -- a hybrid LCD technology that can be switched from a standard, full-color LCD backlit mode to a Kindle-like monochromatic reflective mode viewable in direct sunlight (while consuming 80% less power than standard LCDs).

ENGADGET: The e-Reader story of CES 2010