Interferometric Modulator Display
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Transcript of Interferometric Modulator Display
1ÉC OLE POL Y TEC H NIQU EFÉ DÉRALE D E LA USANNE
Nanotech Project 2008 / Phase 2Project:Team:
Interferometric Modulator Display
ACCOTO CelsoADHAM Mohamed
LARRIEU JeanCharles
LE GROS ChristopheMAQUEDA LÓPEZ Mariazel OTTONELLO BRIANO Floria
PIZZATO DanielSADRINI Jury
Team Members:
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Outline
1. Market Analysis2. Building Blocks3. Architecture/Materials4. Product Specifications5. Time schedule (Gantt diagram)6. Conclusions
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Market Evolution
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Power Gap in Nowadays Market
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IMOD Position in Display Market
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System block diagram
Embodiment of an electronic device incorporating a 3x3 interferometric
modulator display.
Two adjacent interferometric modulators
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Block Diagram illustrating an embodiment of a visual Display
Device
TPS65131 microcontroller:
• adapted for small to medium size displays
• output voltage up to 15V and negative output voltage down to -15V
• compatible with a Li-ion battery
System block diagram
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Basic Architecture of an IMOD
M. Mitchell Waldrop, “Brilliant Displays”Cheng-Yao Lo et al., “MEMS-Controlled Paper-Like Transmissive Flexible Display”Jeffrey B. Sampsell, “MEMS-Based Display Technology Drives Next-Generation FPDs for Mobile Apps.”
9ÉC OLE POL Y TEC H NIQU EFÉ DÉRALE D E LA USANNE
Nanotech Project 2008 / Phase 2Project:Team:
Basic Architecture of an IMOD
M. Mitchell Waldrop, “Brilliant Displays”Cheng-Yao Lo et al., “MEMS-Controlled Paper-Like Transmissive Flexible Display”Jeffrey B. Sampsell, “MEMS-Based Display Technology Drives Next-Generation FPDs for Mobile Apps.”
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Basic Architecture of an IMOD
Substrate
GLASS
M. Mitchell Waldrop, “Brilliant Displays”Cheng-Yao Lo et al., “MEMS-Controlled Paper-Like Transmissive Flexible Display”Jeffrey B. Sampsell, “MEMS-Based Display Technology Drives Next-Generation FPDs for Mobile Apps.”
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Basic Architecture of an IMOD
Reflective surfaces
PEN
M. Mitchell Waldrop, “Brilliant Displays”Cheng-Yao Lo et al., “MEMS-Controlled Paper-Like Transmissive Flexible Display”Jeffrey B. Sampsell, “MEMS-Based Display Technology Drives Next-Generation FPDs for Mobile Apps.”
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Basic Architecture of an IMOD
Electrodes
ITO, Al, Au, Ag, MoCr
Mark W. Miles, “Toward an iMoD ecosystem”
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Basic Architecture of an IMOD
Posts
GLASS, SiO₂
M. Mitchell Waldrop, “Brilliant Displays”Cheng-Yao Lo et al., “MEMS-Controlled Paper-Like Transmissive Flexible Display”Jeffrey B. Sampsell, “MEMS-Based Display Technology Drives Next-Generation FPDs for Mobile Apps.”
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Basic Architecture of an IMOD
Photonic CrystalsParallax 3D
André C. Arsenault et al., “Photonic-crystal full-colour displays”
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Specifications
LCD OLED IMoD
Switching Speed [ms]
2-20 0.001 10
Power Consumption
315 401 23
Efficiency <50% - 85%
Resolution [ppi] 326 235 223
Number of colors 262 k 262 k 2^n or n+1
Size 9” 7” 5.7”
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Specifications
• Parameters that are not yet estimated• Driving Voltage• Cost• Contrast• Weight• Lifetime
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Conclusion
• The market seems to be very attractive.
• The fundamental blocks of the display are defined.
• The overall tasks are assigned to the different work
groups.
• Some improvements are under study.
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Thank you for the attention!!!
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Exemples: switching speed
Each pixel lit per 17 ms (20 Europe) before been redrawn
• LCD : 20 ms in year 2000 (useless for video apps) 2 ms modern displays.• CRT : < 1ms.• OLED : 0.001 ms.• Plasma : 0.001 ms.
• Techniques to increase the switcing speed:• Boost the driving voltage• Super sampling : built intermediate frames
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Exemples: cost & resolution & weight
Cost:• OLED : ~ $24,000 per square meter • LCD : ~ $800 per square meter
• Resolution: • Iphone : 362 ppi• Mirasol IMOD : 223 ppi• Ipad : 132 ppi
• Weight : • Ipad : 132 g for 241x185mm
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Exemples: Contrast & driving voltageContrast: ratio of the luminance of the brightest color (white) to
that of the darkest color (black) • LCD : 5000 : 1 Dynamic (underpower backlight)
1000 : 1 Static• CRT : >3000 : 1 Static• Plasma : 5000 : 1 Static• OLED : 2000 : 1 to 1,000,000: 1 (in a perfectly dark
room)
Driving voltage: depend of the battery:• Iphone : 3.7 V• Ipad : 3.7 V
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Exemples: Power consumption (mW)Web browsing Video Messaging
LCD IMOD LCD IMOD LCD IMOD
Display 315 23 315 23 315 11
% Saved 93 % 93 % 97 %
Device 555 280 887 612 370 80
% Saved 49.6 % 31.0 % 78.4 %
• Operating Assumptions: 80% active time in an office, 10% in bright light and 10% at night (dim light)
• Display power includes the display plus backlight power for an LCD and frontlight power for an IMOD
source : Pike Research
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Exemples: Number of colours
Iphone touch : 262k = 18 bit colours