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Electronic InkElectronic Ink(our next generation for (our next generation for

text)text)

namename

Fifth semester electronics Fifth semester electronics engineeringengineering

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On 14On 14thth July July

collegecollege

YESTERDAY• People used surrounding material

as display• Only wealthy people use silk

display • Chinese invented paper on 105 AD

Paper display

1. Cannot reprint2. Difficult to carry3. Reuse possible after recycle

• Long period paper used as display• Ink used to made text on it• Lost popularity due to

disadvantages

Scientists are now close to developing a revolutionary technology that could replace paper, called electronic ink!

E- INK COMPONENTS

• Millions of tiny microcapsules or cavities

• An ink or oily substance filling the microcapsules or cavities

• Pigmented chips or balls with a negative charge floating inside the microcapsule

What is Electronic Ink?

• Worked on the principle electrophoresis

• Two types of process• Charged pigment chips or balls• Worked by applying electronic

potential

How does it actually work?

• E-ink cover entire page• Separated by cells as a graph

paper• Tiny microcapsules include fluid

and charged particles• Apply desired charge for desired

change

What does all that mean?

• Negatively charged black particles• Positively charged white particles• Contain fluid helps to movement

of pigment chips

If you were to take thousands of these beach balls and lay them out on a field, and make the ping-pong balls move between the top and bottom of the beach balls, you could make the field change color. That's the principle behind electronic ink.

In reality, these microcapsules are only 100 microns wide, and roughly 100,000 microcapsules can fit into a square inch of paper. In each of those microcapsules there are hundreds of smaller pigmented chips. In prototypes, E Ink is currently working with white chips and blue ink, but it is working to develop other color inks that could lead to multicolor displays.

WORKS• When +ve voltage

applied at top the -ve charged black chips attracted to upside and text become visible

• Text disappears when voltage reverse

Like reading the newspaper?

• Change the way of reading of newspaper

• Can read a paper in a page by single click

• Reduce paper wastage• Save nature

E-INK V/S ORDINARY INK• Superior Look• Versatile• Paper-Like

Readability• Ultra-Low Power

Consumption

• Reduced eyestrain

• Lightweight• Flexibility• Scaleable• Low Risk

Manufacturing

Positives

• Save paper• Save space• Less to carry• Increase

technological skills

• Clean hands (newspaper)

Negatives

• Eliminate jobs• Malfunctions • Loss of data• Lack of

technological knowledge

• Expensive

APPLICATIONS• Electronic paper

watch• Paper- thin digital

clock• E-News paper

• Mobile display solutions

• Signage

Further Study

http://www.eink.com/

http://www.eink.com/technology/index.html