Sony has developed an A4 sized equivalent 13.3″ digital paper notepad.
The display is the first in the world to use E Ink Mobius, a new flexible electronic paper display technology developed by E Ink in collaboration with Sony. Technology developed by Sony for forming high precision thin film transistors on plastic instead of glass has been used, making the display flexible and light. It is scheduled for mass production this year.
“We’ve succeeded in mass-producing these large flexible panels, by combining E-Ink’s flexible paper technology and Sony’s mass-production technology.”
“Usually, devices are made by sandwiching TFTs between glass sheets. But these panels use plastic instead of glass, so they’re much lighter. Another feature is that, unlike glass, these panels are very durable.”
This prototype digital notepad weighs 358 g and is 6.8mm thick, with the 1200×1600 pixel display itself weighing around 60g, 50% less than if glass was used. The prototype also features a battery life of approximately three weeks.
“This is a PDF document. You can page through it with your finger. Of course, you can also write comments and draw lines in the PDF document. Also, if you choose the marker, and move your finger over text, you can highlight text like this.”
“This is still at the prototype stage. But we’re designing it to work smoothly. Also, with paper, you can rest your hand on it while you write, but with a tablet, you can’t always do that. This digital paper makes it possible to write while resting your hand on the panel.”
“We’d especially like this to be used in universities. From the second half of this year, we’re planning to do trials with Waseda, Hosei, and Ritsumeikan Universities. We also plan to release a commercial version during this year.”