Fujitsu demos new epaper screen

Fujitsu just announced their next generation epaper screen It boasts a contrast ratio of 7:1 (3 times the previous gen) and a refresh rate of 0.7s. The new screen tech will be on display at the Fujitsu Forum 2010, which is held on May 13 - 14 at Tokyo International Forum.

Fujitsu via SlashGear

Here's some interesting technical detail from the press release:


E-paper is being heralded as an environmentally friendly electronic display medium that is lightweight and thin like paper, consumes little power, and allows an image to be freely redrawn. While most e-paper applications to date - such as e-book readers - have been monochrome (black and white), Fujitsu Laboratories pioneered the development and practical use of color e-paper, and in 2007 Fujitsu Frontech Limited brought to market FLEPia, the world's first portable information terminal equipped with a color e-paper display.

With demand on the rise for e-paper in areas such as e-book readers and public advertisements, anticipation is mounting for e-paper technology that can display color.

Technological Challenges

Although extensive R&D in the industry has been conducted for e-paper, in the past as it had been difficult to simultaneously achieve various functionality, such as the ability to feature brightness in color, and simultaneously enhancing brightness and greater contrast ratios while achieving faster re-write speeds, there is anticipation for improvements in color e-paper featuring further enhanced display functionality.

Overview of Newly-developed Technology

Figure 2: Cholestric LCD panel employed in Fujitsu's color e-paper structure

Larger View

The new feature-enhanced color e-paper developed by Fujitsu Laboratories and to be commercialized by Fujitsu Frontech employs a layered construction found in cholesteric liquid-crystal display (LCD) panels with an image memory function, and makes use of the reflective properties in each color layer where the cholesteric liquid crystals reflect a specific wavelength of light of red, green, or blue (Figure 2). Compared to the reflective displays using a color-filter array widely used in conventional LCDs, Fujitsu's cholesteric LCD method allows for a display that features colors with greater vibrancy and brightness.

Fujitsu's new feature-enhanced color e-paper has achieved the world's highest color-image quality, in an extremely slim film panel. Key features of the new color e-paper are as follows:

About Nate Hoffelder (11476 Articles)
Nate Hoffelder is the founder and editor of The Digital Reader: "I've been into reading ebooks since forever, but I only got my first ereader in July 2007. Everything quickly spiraled out of control from there. Before I started this blog in January 2010 I covered ebooks, ebook readers, and digital publishing for about 2 years as a part of MobileRead Forums. It's a great community, and being a member is a joy. But I thought I could make something out of how I covered the news for MobileRead, so I started this blog."

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