Printed organic diode backplane for matrix addressing an electrophoretic display

An organic matrix diode backplane for driving an electrophoretic display with an unpatterned front plane electrode is reported. Using thin film diodes instead of transistors as the active components in the pixels enable the backplane to be manufactured using roll-to-roll compatible printing processe...

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Bibliographic Details
Published in:Thin solid films 2010-05, Vol.518 (15), p.4385-4389
Main Authors: Lilja, Kaisa E., Bäcklund, Tomas G., Lupo, Donald, Virtanen, Juhani, Hämäläinen, Esa, Joutsenoja, Timo
Format: Article
Language:English
Subjects:
Active matrix
Backplanes
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Copper
Cross-disciplinary physics: materials science
rheology
Deposition by sputtering
Dielectric thin films
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Diodes
Electrodes
Electronic devices
Electrophoretic display
Exact sciences and technology
Gravure printing
Laminates
Materials science
Methods of deposition of films and coatings
film growth and epitaxy
Physics
Pixels
Planes
Semiconductors
Silver
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Summary:An organic matrix diode backplane for driving an electrophoretic display with an unpatterned front plane electrode is reported. Using thin film diodes instead of transistors as the active components in the pixels enable the backplane to be manufactured using roll-to-roll compatible printing processes. The backplane functionality is demonstrated in an electrophoretic display using 16 copper pixel electrodes, each of which is connected to two printed organic diodes. The printed diodes have sputtered copper cathodes and printed silver anodes. The diodes and pixels are arranged in a lateral 4 by 4 matrix structure with a dielectric layer separating the row and column electrodes. The dielectric, semiconductor and silver layers are all printed using a laboratory-scale rotary gravure press. The display module is finalized by laminating the front plane material onto the backplane.
ISSN:0040-6090
1879-2731
DOI:10.1016/j.tsf.2010.02.008