Amazon Kindle

Prepared ByMr. Glennon

+

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?