Brief description of the Amazon Kindle and how its eInk technology works.

1. Amazon Kindle

2. Prepared By Mr. Glennon

3. +

4. What is it?

5. An eReader

6. What’s an eReader?

7. An electronic reading device.

8. How does it work?

9. LCD screen (Backlit) eInk screen (Needs external light)

10. How does eInk work?

12. Capsules Top screen layer Bottom screen layer

13. There are millions of capsules between the two layers

14. Each capsule is about 5 microns wide. A micron is one millionth of a meter.

15. How BIG is a micron? Strand of hair 20-180 microns wide Red blood cell 8 microns wide

16. How do the capsules work? Filled with fluid Each capsule contains thousands of smaller black and white particles Top screen layer Bottom screen layer

17. How do the capsules work? All of the particles carry a magnetic charge The white particles have a positive charge The black particles have a negative charge

18. But how does this make letters appear on the screen?!

19. Back to the layers of the screen…

20. Top layer Capsules Bottom layer Electrodes Thousands of electrodes under the screen emit positive and negative electrical charges.

21. 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

22. 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

23. Thousands of electrodes and millions of microcapsules work together to create letters and images on your eReader screen.