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Fuji Xerox shows off full-color e-paper

Posted on Saturday, December 08 2007 @ 01:22:00 CET by

Fuji Xerox unveiled a prototype of full-color electronic paper with high brightness and contrast.
The electronic paper is made with reflective color liquid crystals that were developed by utilizing the selective reflection effect of cholesteric liquid crystals. Three layers (red, green and blue) are laminated to enable full-color display.

The display layers have a PDLC (polymer-dispersed liquid crystal) structure that disperses and retains cholesteric liquid crystals in a matrix of gelatin. Each of the three display layers is controlled by the optical writing system with organic photoreceptors.

The integrating sphere reflectance (white) of the electronic paper is 27.4%, and the contrast ratio (the ratio of white color reflectance to black color reflectance) is 6.4. The display is A6 size (105 × 148mm). It is as thin as 0.4mm and can be bent. It weighs 10.4g. For the future, the company plans to develop an A4 size display.
Source: Tech On



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