e inkpresentation by me 1 - copy
TRANSCRIPT
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DEPARTMENT OF ELECTRONICS AND COMMUNICATION
ENGINEERING
SEMINAR ON
Presented By
Umesh.R.D
(2KD10EC419)
UNDER THE GUIDANCE OF Prof.D.D.Billur
Asst.Professor Dept.Of E&CKLE CET Chikkodi
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Dept.E&C,KLECET CKD 2
Content….. Introduction History Scheme Working Application Advantages Disadvantages Future Conclusion References
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Dept.E&C,KLECET CKD 3
What is E ink???E Ink is the creator of electrophoretic or electronic ink.
Electronic ink is actually a straightforward fusion of chemistry, physics and electronics.
It's so much like paper.
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History Research started at the MIT Media Lab in 1996.
Joseph Jacobson and Barrett Comiskey • invented E ink in 1996.
On June 1, 2009, E Ink Corp. Purchased technology by• one of its primary business partners, Prime View Int'l Co. Ltd
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Dept.E&C,KLECET CKD 5
Types of E ink
1-E Ink Pearl - July 2010
2- E-ink Mobius- 2010
3-E Ink Triton- November 2010
4-E Ink Carta- January 2013
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Schematic Diagram• 1- Upper layer • 2- Transparent electrode layer• 3- Transparent micro-capsules• 4- Positively charged white pigments• 5 Negatively charged black pigments
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Dept.E&C,KLECET CKD 720/02/2015
6- Transparent oil 7- Electrode pixel layer8- Bottom supporting layer9- Light10-white11- Black
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Dept.E&C,KLECET CKD 8
WORKING A millions of cell particles are present in a display of any
device E-ink is made up of millions of tiny microcapsules that are
suspended in liquid placed within a film-like layer. The liquid is present in b/w both the pigments(black and
white) Applying a –ve electrical field causes then the white pigments
(+ve) to come to the surface As same as when a +ve electric field causes then the black
pigments (-ve) will come to the surface Applying different fields at various parts of a screen, E Ink can
produce a text display
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Dept.E&C,KLECET CKD 9
Comparison of e-paper & lcd
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Electronic Ink Display Liquid Crystal Display
Wide viewing angle Best image only from one position
Readable in sunlight Can be difficult to see in sunlight
Holds image without power drain Required power to hold images
Plastic or glass Glass only
Light Weight Power supply and glass make LCDs relatively heavy
Thin (~1 mm) Thick (~7 mm)
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Dept.E&C,KLECET CKD 10
Supply Voltage: 2.7—3.3 V DC
Power Consumption:
Active update peak: 1800 mWActive update typical: 750 mWStandby typical: 1 mW
Mechanical / Dimensional for 6" Display:
Electrical specifications:
This analysis done for E ink triton.
Power consumption
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Dept.E&C,KLECET CKD 11
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. Back plane is made up of organic thin film transistor arrays which
provide voltage needed by the E-Paper. To form an E-ink electronic display the ink is printed onto a plastic
film that is laminated to a layer of circuitry.
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Dept.E&C,KLECET CKD 12
The front plane consist of E-ink.
E-ink is made up of millions of tiny microcapsules.
Microcapsules have diameter of the order of 100 microns.
Each microcapsule contains positively charged white particles and negatively charged black particles suspended in a clear fluid .
When a positive or negative electric field is applied, corresponding particles move to the top of the microcapsule where they become visible to the viewer. This makes the surface appear white or black at that spot.
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Front plane
E-ink 2-pigment system
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Gyricon
Electrophoretic display
Technologies proposed so far for e-paper:
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Dept.E&C,KLECET CKD 14
Each E-ink capsule contains an oily solution containing black dye (the electronic ink), with numerous white titanium dioxide particles suspended within these capsules are dispersed in a hydrocarbon oil in which dark-colored dye and charging agents are also added. Capsule diameter is 40 micrometer.
Gap between the two conducting plates is of the order of 100 micrometers and the mixture is placed between these plates.When a voltage is applied across the two plates, the particles will migrate electrophoretically to the plate bearing the opposite charge from that on the particles.
Electrophoretic display
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Dept.E&C,KLECET CKD 15
When the particles are located at the front (viewing) side of the display, it appears white, because light is scattered back to the viewer by the high refractive -index titania particles.
When the particles are located at the rear side of the display, it appears dark, because the incident light is absorbed by the colored dye.
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Dept.E&C,KLECET CKD 16
Applications Wristwatches e-Book readereg: Amazon kindle.
Electronic Shelf LabelIn a large department store or supermarket, e-paper can be used for labeling the shelves and price tagging.
Electronic Billboards Status displays Digital Photo Frames Mobile phones E-Newspaper Time Table at Stations
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Dept.E&C,KLECET CKD 17
Applications
E Readers
E Ink Active Matrix displays deliver the best reading experience with the highest contrast and longest battery life for eReaders.
Indicators
• E Ink Segmented displays enable engineers and designers to add high contrast displays where power and space limitations have made it impossible.
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Dept.E&C,KLECET CKD 18
Applications
Watches
It inspire innovative designs and shapes using the lowest power requirements and added durability.
Keypads
• E Ink Segmented displays make it possible to offer breakthrough designs such as dynamic keypads.
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Dept.E&C,KLECET CKD 19
Applications
Cell Phones
E Ink Segmented displays make it possible to offer lowest power solutions with superior readability
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Advantages Bi-stableReduces the power consumptionNo refreshmentReflective displayAmbient light from the environmentBetter response in sunlight over LCD and LED
display.
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Disadvantages inability to display more colors and video Very slow zoom Ghost images Don't have backlighting
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Dept.E&C,KLECET CKD 22
FutureAt Home
On the Go
Education
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Future At Home
Whether cooking with new recipes or keeping track of prescriptions, E Ink technology has many uses inside the home.
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Future On the Go
Add high contrast displays with direct sunlight readability where power or space limitationshave made it impossible to do so before.
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Future
• Education
E ink display platforms inspire innovativedesigns that bringclassrooms to life.20/02/2015
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ConclusionIt uses electrophoretic technology.Invented by Joseph Jacobson and Barrett Comiskey • in MIT Media Lab in 1996. Objects are displayed on the different moves of pigments. It is being used in mobile phones, watches, indicators etc. E ink having some disadvantages but advantages are more
important and useful. Having a broad future.
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References Flexible and Roll-able Displays/Electronic Paper A Brief Technology Overview
Rong-Chang (R.C.) Liang Paper Electronics and Electronic Paper• by Magnus Berggren*'**, Thomas Kugler*'**, Tommi Remonen*, David
Nilsson**,Miaoxiang Chen**, Petronella Norberg"*The Research Institute ACRE0 AB, Bredgatan 34, SE-602 21 Norrkoping, Sweden **Organic Electronics Group, Campus Norrkoping, SE-601 74, Sweden
E-paper: Clarifying future R&D needs by a fundamental understanding of the maximum performance of current technologies
• Author(s): Heikenfeld, J. Novel Devices Lab., Univ. of Cincinnati, Cincinnati, OH, USA
http://spectrum.ieee.org/consumer-electronics/portable-devices/lighter-brighter-displays
Image taken from: http://www.eink.com/technology.html• http://www.amazon.in/gp/product/B007RF5F0Q/ref=famstripe_kp3
MIT Media Laboratory. http://www.media.mit.edu/micromedia (January2001). — Perry Romanowski
http://en.wikipedia.org/wiki/Electronic_paper20/02/2015
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Thank You
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QUESTIONS???
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