Liquavista was launched in 2006, the Philips company, but was acquired by Samsung in 2010. As the Korean electronics giant continued its popular Developing AMOLED technology, interest in Liquavista’s approach reportedly waned, leading to the Amazon sale. Liquavista produces electrowetting displays, Which have the ability to display images, video, or text with low power consumption and enhanced outdoor performance (much like e-paper).
Electrowetting displays, Like Those developed by Liquavista, use voltages to move liquid “pixels” around. The theory behind the electrowetting screen is not that dissimilar from LCDs. In an application of the LCD voltage changes the opacity of the liquid crystal. In an electrowetting system, a bead of black oil takes the place of the crystal. In this case, voltage makes the black pigment contract by altering its wettability and Allowing light to shine through. Simply do the same-with red, blue, and green subpixels and you can create any color you need.
Liquavista’s manufacturing process has been designed to allow existing fabrication plants to switch to electrowetting production with little issue. This would be of interest to Amazon, as it contracts with the MDGs to all of its manufacturing Kindle. Also Amazon is surely interested in electrowetting displays as a way of bringing its Fire tablets in battery usage closer to the traditional Kindle readers.
Amazon is not offering any hints about how Liquavista technology might be used in future products, but it’s the clearest sign yet que true color e-readers are on the way.
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