Epson Develops A6-Size Electronic Paper with World's Highest Resolution Using Plastic Substrate

Jun 12, 2006
Epson Develops A6-Size Electronic Paper with World's Highest Resolution Using Plastic Substrate

Seiko Epson Corp. has successfully developed A6-size (7.1 inches on the diagonal) electronic paper using a plastic substrate. Drawing on Epson's original SUFTLA technology, the new electronic paper achieves Quad-XGA resolution (1536 x 2048 pixels) – the world's highest – and shows the potential for increasing screen size. The development was announced on June 9 at the Society for Information Display (SID) international symposium held in San Francisco.

Epson has long been working to develop and manufacture low-power-consumption, space-saving electronic devices. At the cutting edge of these efforts, R&D has focused on thin, light and flexible devices that can be reshaped as needed, and that can become the technology that drives electronic equipment for a ubiquitous networked society. In the course of such development, Epson has amassed a range of proprietary technologies including low temperature polysilicon thin film transistors (LTPS-TFT) and SUFTLA, which enables the transfer of TFT circuits to flexible substrates.

As outlined below, the new electronic paper draws on a number of original Epson technologies and has a range of features suited to portable displays.

1. World's highest resolution
LTPS-TFT formed on a plastic substrate using SUFTLA technology gives this electronic paper Quad-XGA resolution – the highest in the world. This ensures that even the smallest letters on a portable display are fully visible.

2. High contrast guaranteeing high-quality display
With a contrast ratio of 10:1, the new technology achieves the same levels of visibility as images printed on ordinary paper.

3. Narrow border and simple interface
Forming peripheral drive circuits with LTPS-TFT creates a simple structure with very few external terminals, that result in a borderless flexible display, even with the drive circuits included.

4. Low power consumption
Data display does not require power – a memory function ensures that information does not disappear even if the power is turned off. Maximum drive voltage even for editing information is just 6 volts, showing that the display itself consumes very little power.

5. Larger screen
The expanded screen size, from around 2 inches in existing models to A6 size (7.1 inches on the diagonal), is evidence of potential for even bigger screens in the future.

Epson will examine the potential of a range of applications for the technology and conduct further research and development with a view to its practical use.

Source: Seiko Epson

Explore further: LG Display moves advanced touch tech up to notebooks

Related Stories

300-dpi: Epson, E-ink give ePaper a resolution boost

May 18, 2011

(PhysOrg.com) -- For the most part when we think about E-Ink technology high resolution are not the words that come to mind. We all love our e-readers, such as the Nook and the Kindle, because they give us ...

Recommended for you

Drone postal deliveries begin in Switzerland

1 hour ago

Wondering where your package is? Look up! Switzerland's postal service said Tuesday it had begun testing parcel deliveries by unmanned drones, although widespread use of the flying postmen is not likely to kick in for another ...

The future of artificial intelligence

2 hours ago

Only a few years ago, it would have seemed improbable to assume that a piece of technology could quickly and accurately understand most of what you say – let alone translate it into another language.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.