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: NERSC, Cray move forward with next-generation scientific computing

Related Stories

For many US teachers, the classroom is a lonely place

5 hours ago

One of the best ways to find out how teachers can improve their teaching is to ask them. The massive Teaching and Learning International Survey (TALIS) did just that and the answers offer crucial insights for teachers, school ...

Recommended for you

'Map spam' puts Google in awkward place

16 hours ago

Google was re-evaluating its user-edited online map system Friday after the latest embarrassing incident—an image of an Android mascot urinating on an Apple logo.

Team develops faster, higher quality 3-D camera

16 hours ago

When Microsoft released the Kinect for Xbox in November 2010, it transformed the video game industry. The most inexpensive 3-D camera to date, the Kinect bypassed the need for joysticks and controllers by ...

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.