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L‐4: Late‐New Paper: Active‐Matrix Operation of Electrophoretic Devices with Inkjet‐Printed Polymer Thin Film Transistors
Author(s) -
Kawase Takeo,
Newsome Christopher,
Inoue Satoshi,
Saeki Takayuki,
Kawai Hideyuki,
Kanbe Sadao,
Shimoda Tatsuya,
Sirringhaus Henning,
Mackenzie Devin,
Burns Seamus,
Friend Richard
Publication year - 2002
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1830115
Subject(s) - materials science , thin film transistor , active matrix , pedot:pss , polymer , electrophoresis , electrode , transistor , optoelectronics , printed electronics , electrophoretic deposition , matrix (chemical analysis) , nanotechnology , inkwell , voltage , composite material , electrical engineering , layer (electronics) , chemistry , chromatography , coating , engineering
Active‐matrix operation of an electrophoretic device has been achieved with all‐polymer thin film transistors (TFTs). The source/drain, gate electrodes and gate lines of the TFTs were fabricated by inkjet printing with a conductive polymer, polyethylenedioxythiophene (PEDOT). Electrophoretic material was prepared from TiO 2 particles suspended in dyed solution, and was microencapsulated in polymer membrane spheres. The microcapsules were sandwiched between the polymer active‐matrix array and a counter electrode. The voltage of each pixel was independently changed by switching the printed polymer TFT, and contrast in the electrophoretic material was successfully obtained.