Mayur

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Professional practices seminar on e-paper
By Mayur Marathe
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What is E-paper?

• What is E-paper?
• E-Paper is reusable portable medium
• Photos
• Text
• Video
• Common Appearance to paper

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Can be written on repeatedly by electronic means
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What E-Paper is used for

• Applications such as
• E-books
• Electronic Newspaper
• Foldable display

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And even advertisements
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Features of E-Paper
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No thicker than a standard transparency.
Can be rolled up and placed in pocket when not in
use
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How E-Paper works

• Comprised of two different parts
• Electronic ink or front-plane
• Electronics required to generate the pattern of
  text and images or backplane

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Gyricon example A closer look

• Consist of a single sheet of transparent plastic.
• Each sheet contains millions of tiny bichromal (2
  color) beads in oil-file pockets.

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• Each tiny plastic bead can freely rotate within
  the plastic sheet
• The hemisphere of each beads has a different
  color and a different electrical charge
• When an electric field is applied to the
  backplane, the beads rotate, creating a two color
  pattern
• This creates the image on the screen

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Background

• In the 1960-1970s Xeroxs Palo Alto Research
  Center (PARC) began development of electronic
  paper
• PARC employee Nicolas K. Sheridon is considered
  the Father of E-Paper
• Invented Gyricon E-Paper in 1974

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• In December 2005 Xerox closed its Gyricon
  operation due to financial reasons
• Nicholas K. Sheridon is working independently to
  perfect E-Paper medium
• Several competitors have entered the market since
  Xeroxs initial entry

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Top Competitors include

• Irex
• Sony
• Phillips
• E Ink Cork

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Future of E-Paper

• It is believed that E-Paper will eventually
  replace newspaper and books in the library
• E-Paper may soon replace the use of LCD in many
  applications
• Consumer products
• Cell phone screens
• Laptops
• Mp3 Players
• Business Products
• Advertisement
• PDAs