Flexible active-matrix displays and shift registers based on solution-processed organic transistors.
At present, flexible displays are an important focus of research. Further development of large, flexible displays requires a cost-effective manufacturing process for the active-matrix backplane, which contains one transistor per pixel. One way to further reduce costs is to integrate (part of) the display drive circuitry, such as row shift registers, directly on the display substrate. Here, we demonstrate flexible active-matrix monochrome electrophoretic displays based on solution-processed organic transistors on 25-microm-thick polyimide substrates. The displays can be bent to a radius of 1 cm without significant loss in performance. Using the same process flow we prepared row shift registers. With 1,888 transistors, these are the largest organic integrated circuits reported to date. More importantly, the operating frequency of 5 kHz is sufficiently high to allow integration with the display operating at video speed. This work therefore represents a major step towards 'system-on-plastic'.
Gelinck
Gerwin H
GH
Philips Research Laboratories, Prof. Holstlaan 4, 5656AA Eindhoven, The Netherlands. gerwin.gelinck@philips.com
Huitema
H Edzer A
HE
van Veenendaal
Erik
E
Cantatore
Eugenio
E
Schrijnemakers
Laurens
L
van der Putten
Jan B P H
JB
Geuns
Tom C T
TC
Beenhakkers
Monique
M
Giesbers
Jacobus B
JB
Huisman
Bart-Hendrik
BH
Meijer
Eduard J
EJ
Benito
Estrella Mena
EM
Touwslager
Fred J
FJ
Marsman
Albert W
AW
van Rens
Bas J E
BJ
de Leeuw
Dago M
DM
D001672:Biocompatible Materials; D014173:Transistors, Electronic
D001672:Biocompatible Materials