Post on 15-May-2015
description
Amazon Kindle
Prepared ByMr. Glennon
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What is it?
An eReader
What’s an eReader?
An electronic reading device.
How doesit work?
LCD screen (Backlit)
eInk screen (Needs
external light)
How does eInkwork?
•2 screen layers•Tiny capsules between layers
eInk
Top screen layer
Bottom screen layer
Capsules
There are millions of capsules between the two layers
Each capsule is about 5 microns
wide.
A micron is one millionth of a meter.
How BIG is a micron?
Strand of hair20-180 microns wide
Red blood cell8 microns wide
How do the capsules
work?
Top screen layer
Bottom screen layer
Filledwithfluid
Each capsulecontains thousands of smaller black and white particles
How do the capsules
work? All of the particles carry a
magnetic chargeThe white
particles have a
positive charge
The black particles have a
negativecharge
But how does this make letters appear on the screen?!
Back to the layers of the screen…
Top layer
Capsules
Bottom layer
Electrodes
Thousands of
electrodes under the
screen emit positive and
negative electrical charges.
Top layer
Capsules
Bottom layer
Electrodes
When a negative charge is
emitted, the negatively
charged black
particles are repelled and are pushed
to the top of the
capsule. Negative charge emitted
Top layer
Capsules
Bottom layer
Electrodes
When a positive charge is
emitted, the positively charged white
particles are repelled and are pushed
to the top of the
capsule. Positive charge emitted
Thousands of electrodes and millions of microcapsules work together to create
letters and images on your eReader screen.
•Slide power switch on top of Kindle to turn on•Move the square button to navigate the list of books•Press the square button to select a book to read•While reading a book, use the square button to navigate to words. The definition of the word is displayed at the bottom of the screen.
How Do IUse it?