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Flexible display

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Flexible display

  1. 1. A technical seminar on Presented by: LOKESH JAIN 1
  2. 2. Contents  Objective  Introduction  History  Construction  Functionality  Comparisons  Present and future of E-paper  Advantages & Disadvantages  Application  Conclusion  References 2
  3. 3. Objective  To understand the electronic flexible display  To reduce the breaking of glass of mobile phones  To reduce the extra weight in your pocket for carrying smartphones 3
  4. 4.  A flexible display is a display which is flexible in nature  E-Paper is also called Electronic Paper or Electronic Ink Display  E-Paper have a wide viewing angle  E-Paper phone is made by e- paper, and users is allowed to bend body of phone cause it is flexible Fig.1:Flexible display 4
  5. 5. Cont…..  E-Paper Phone performs everything same as a smartphone  The flexible display allows users to interact with the phone by twisting, bending and folding in different manners across both the vertical and horizontal planes 5
  6. 6. What makes flexible electronic display attractive? • Rugged • Light weight • Very thin • The ability to curve,flex,roll,fold • Portability • Low power • Non-breakable 6
  7. 7. History of Electronic Paper • First developed in the 1970’s by Nick Sheridon at Xerox’s Palo Alto Research Center • First Electronic Paper was called Gyricon • 1990’s- Joseph Jacobsen created another version of E-paper 7
  8. 8. How the image seen on the E-paper  Black particle move to top of microcapsule and white particle move to bottom of microcapsule where they become visible,making the pixel  To increase the resolution of image each microcapsule can be controlled by more than one electrode on each side,allowing it to appear half black and half white 8
  9. 9. Construction of E-Paper  It has two different parts Front plane Back plane  The front plane consist of E-ink  The back plane consist of electronic circuits  To form an E-ink electronic display the ink is printed onto a plastic film that is laminated to a layer of circuitry 9
  10. 10. Functionality  The new paper phone is made of two layers: the e-ink display and a flexible printed circuit with bend sensors  Flexible printed circuit with resistive bend circuits, which are used to identify the bending of the display screen  The user actually chooses the function by bending the PCB  For example: you can choose to bend the upper-right corner to make a call, or bend the lower left to listen to music 10
  11. 11. Cont....  We have software that collects the values given by the bend sensors  These gestures are then fed into a gesture-recognition engine trained to associate certain movements with certain instructions  For example: bending the bottom corner of the display down will move one contact down when navigating through a contact list 11
  12. 12. Comparison of E-paper & LCD 12
  13. 13. Applications • Electronic shelf labels in Grocery stores- cuts out time it takes for workers to change labels for specials or new items • No Knob Etch-a-sketches- children draw with electronic ink then erase with the push of a button 13
  14. 14. Future of E-paper  Improve hardware that can refresh page quickly  More advanced wireless capabilities  Epaper reader may soon replace the present newspaper and books 14
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  16. 16. Lower cost in the future Light weight & flexible plastic Wider viewing angles & improved brightness Better power efficiency UV sensitivity Less Lifetime Expensive Manufacturing Susceptible to water 16
  17. 17.  Smart Phone with a functional flexible electrophoretic display and integrated bend sensors  Small, Compatible and Low power consumption  Paper Phone uses the glare-free screen technology & feels a little more like paper 17
  18. 18. References [1] Lahey, Byron, et al. "PaperPhone: understanding the use of bend gestures in mobile devices with flexible electronic paper displays", Proceedings of the SIGCHI Conference on Human Factors in Computing Systems. ACM, pp. 1303-1312, 2011 [2] Warren, Kristen, et al. "Bending the rules: bend gesture classification for flexible displays." Proceedings of the SIGCHI Conference on Human Factors in Computing Systems. ACM, PP (607-610), 2013 [3] "The Future of Electronic Paper". The Future of Things. Retrieved 12 February 2013 18
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  20. 20. Queries??? 20

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