Flexible display

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  • 1. A technical seminar on Presented by: LOKESH JAIN 1

2. Contents Objective Introduction History Construction Functionality Comparisons Present and future of E-paper Advantages & Disadvantages Application Conclusion References 2 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. 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. 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. 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. History of Electronic Paper First developed in the 1970s by Nick Sheridon at Xeroxs Palo Alto Research Center First Electronic Paper was called Gyricon 1990s- Joseph Jacobsen created another version of E-paper 7 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. 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. 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. 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. Comparison of E-paper & LCD 12 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. 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 15. 15 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. 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. 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 19. 19 20. Queries??? 20