A Solution-Processed Organic Thin-Film Transistor Backplane for Flexible Multiphoton Emission Organic Light-Emitting Diode Displays

Author

Mizukami, Makoto ; Oku, Shinya ; Cho, Seung-Il ; Tatetsu, Masahiro ; Abiko, Miho ; Mamada, Masashi ; Sakanoue, Tomo ; Suzuri, Yoshiyuki ; Kido, Junji ; Tokito, Shizuo

Author_Institution

Innovation Center for Org. Electron., Yamagata Univ., Yonezawa, Japan

Volume

36

Issue

8

fYear

2015

fDate

Aug. 2015

Firstpage

841

Lastpage

843

Abstract

An active matrix backplane based on solution-processed organic thin-film transistors (OTFTs) has been developed for flexible displays having multiphoton organic light-emitting diodes (OLEDs). The OTFT device has a bottom-gate/bottom-contact type structure consisting of a polyethylene naphthalate-based flexible substrate covered with patterned gate electrodes and a gate dielectric of UV-cured cardo-polymer. Teflon AF was used for a hydrophobic bank structure that defines active regions of the OTFTs, and the organic semiconductor was coated by solution shearing. The OTFT backplane fabricated here had 384 × 128 pixels at a resolution of 300 dpi; images and video were successfully displayed on the resulting flexible multiphoton-emission OLED display.

Keywords

organic light emitting diodes; organic semiconductors; thin film transistors; UV-cured cardo-polymer; active matrix backplane; bottom-contact type structure; bottom-gate type structure; flexible displays; flexible multiphoton emission; flexible substrate; gate dielectric; hydrophobic bank structure; multiphoton OLED; organic light-emitting diode displays; organic semiconductor; organic thin-film transistor backplane; patterned gate electrodes; polyethylene naphthalate; solution shearing; solution-processed organic TFT; teflon AF; Backplanes; Dielectrics; Electrodes; Logic gates; Organic light emitting diodes; Organic thin film transistors; Dielectrics; Display; Organic light-emitting diodes; Organic semiconductors; Organic thin-film transistors; dielectrics; display; organic light-emitting diodes; organic semiconductors;

fLanguage

English

Journal_Title

Electron Device Letters, IEEE

Publisher

ieee

ISSN

0741-3106

Type

jour

DOI

10.1109/LED.2015.2443184

Filename

7120104