E-paper() ETRI
Contents? (e-paper vs. Display) : Expectations, History, and Vision : Bistability and Threshold : Particle-based e-paper Systems Future Rod Map
Electronic paper vs. Display What is a paperlike display & why is it important?
Electronic Paper vs. Display
Electronic Paper vs. Display M. Omodani, What is Electronic Paper? The Expectations, SID 04 Digest, 128 (2004). - -, Supervisor: Makoto Omodani, CMC (2005).
Electronic Paper vs. Display Reading speed and fatigue levels of Displays <Reading speed> <Eye fatigue> M. Omodani, What is Electronic Paper? The Expectations, SID 04 Digest, 128 (2004). - -, Supervisor: Makoto Omodani, CMC (2005).
Electronic Paper vs. Display Concept of readable Electronic Paper -
Electronic paper : Expectations, history, Vision
Electronic Paper : Vision
Electronic Paper : Expectations Grade Properties Merits Applications Elastic Curved Bending Folding M. Omodani, What is Electronic Paper? The Expectations, SID 04 Digest, 128 (2004). - -, Supervisor: Makoto Omodani, CMC (2005).
Electronic Paper : History LCD Electrophoretic Display I. Ota (Matsushita Electric Ind.), Electrophoretic Display Device, US patent 3668106 (1972). : the first patent II. I. Ota, J. Ohnishi, and M. Yoshiyama, Electrophoretic Image Display (EPID) Panel, Proc. IEEE, 61 (7), pp. 832-836 (1973). : the first paper, one particle system, seven segment,
Electronic Paper : History
Electronic Paper : Applications Display (, ) Display ( ) Display (Mobile Phone, PDA, Webpad ) Paper Display (Mobile Phone, PDA, Webpad ) Newspaper Magazine Books E-Newspaper E-Magazine E-Books D-Paper
Bistability and Threshold
Bistability and Threshold Segment
Bistability and Threshold Passive Matrix
Bistability and Threshold Active matrix
Bistability and Threshold General Display Devices (Monostable) External Force 0 External Force = 0 LCD (normal white) V = 0 : white V 0 : black PDP, OLED (normal black) V 0 : white V = 0 : black
Bistability and Threshold Bistable Electronic Devices (with threshold) state ( 0 ) state ( 1 ) Threshold = V th External Force V = V 0 > V th state ( 0 ) state ( 1 ) Threshold = V th External Force V = - V 0 < -V th Threshold = V th External Force V = 0
Bistability and Threshold Bistable Electronic Devices (with threshold) Bistable LCDs imod Electrochromic Display SiPix (?) State 1 External Force V = - V 0 < -V th State 0 Threshold = V th External Force V = V 0 > V th External Force V = 0
Bistability and Threshold Bistable Electronic Devices (without threshold) State 1 E-ink Gyricon State 0
Bistability and Threshold Column 1 Column 2 Passive Matrix and Multiplexing Row 1 V 0 A V 0 Row 1 A B Row 2 V 0 /2 Column 1 0 Column 2 V 0 /2 B V 0 /2 C V 0 /2 D 0 Row 2 C D Initial state Target pattern B A Threshold voltage C D Column 1 Column 2 Row 1 Row 2 (Vt = threshold voltage) final state
Bistability and Threshold Column 1 Column 2 Passive Matrix and Multiplexing Row 1 V 0 A V 0 Row 1 A B Row 2 V 0 /2 Column 1 0 Column 2 V 0 /2 B V 0 /2 C V 0 /2 D 0 Row 2 C D Initial state Target pattern B A Threshold voltage C D Column 1 Column 2 Row 1 Row 2 final state
Bistability and Threshold Passive Matrix and Multiplexing Col 1 Col 2 Target pattern B A Row 1 C D Row 2 Threshold voltage (Vt = threshold voltage)
Bistability and Threshold Passive Matrix and Multiplexing Col 1 Col 2 Target pattern B A Row 1 C D Row 2 Threshold voltage
Bistability and Threshold No threshold voltage passive matrix addressing : impossible Necessary to build a non-linear element on each pixel Active Matrix Addressing
Electronic Paper Technologies
Electronic Paper Technologies Combinations of writing methods and medium transformation modes Medium transformation modes Physical Chemical Electric Magneti c Light Heat Migration Electrophoretic Toner migration Magnetic migration Thermomagneti c Rotation Twisting ball Twisting ball Molecular movement Liquid crystal Liquid crystal Liquid crystal M. Omodani, What is Electronic Paper? The Expectations, SID 04 Digest, 128 (2004). Phase change Micro phase separatio n Structure change Electrodepositio n Electrochromism EL, OLED, PDP, FPD Photochromism Leuco dye Thermochromis m - -, Supervisor: Makoto Omodani, CMC (2005).
Electronic Paper Technologies Bistable Liquid Crystal Technologies Electrophoresis-based Technologies Others : MEMS-based Technology, imod (QUALCOMM, Iridigm) (Interferometric Modulation Display Technology) : Electrochromic Technology, Ntera : Electrowetting Technology, liquavista (Philips)
imod (interferometric Modulators) technology QUALCOMM (Iridigm Display Corp.) Principles of Operation
imod (interferometric Modulators) technology QUALCOMM (Iridigm Display Corp.) Principles of Operation
NanoChromics Displays (NCD) technology NTera Structure of NanoChromics
NanoChromics Displays (NCD) technology NTera
Electrowetting Display liquavista (Philips) Principles of Operation
Electrowetting Display liquavista (Philips) Principles of Operation V
Electrowetting Display liquavista (Philips) Principles of Operation
Electrowetting Display liquavista (Philips) Principles of Operation
Electrowetting Display liquavista (Philips)
Major Candidates for Electronic Paper Electrophoretic Rotating ball Toner display Reflective LCD E- Ink, Sony, Toppan, Plastic-Logic, Philips Gyricon Bridgestone, Sony, Fuji-Xerox, Kyushu Univ Fujitsu, Kent, e_magin, Sharp, Toshiba
ChLCD (Cholesteric Liquid Crystal Display) technology Kent Display Principles of Operation
ChLCD (Cholesteric Liquid Crystal Display) technology Kent Display
ChLCD (Cholesteric Liquid Crystal Display) technology Kent Display Sunlight readable! Low Power Consumption!
ChLCD (Cholesteric Liquid Crystal Display) technology Color Triple Stack Full Color IDW07 EP2-2 Figure 8 Color photo-addressable cholesteric LC electronic paper (Fuji Xerox, IDW07) Size : A6, CR : 6 vs. 1 Thickness : 0.4 mm
BiNem (Bistable Nematic) NemOptic
SmartPaper (Twisting Ball) technology Gyricon