a-Si:H Thin-Film Transistor-Driven Flexible Color E-Paper Display on Flexible Substrates

Author

Lee, Jong-Kwon ; Lim, Yu-Sok ; Park, Choon-Ho ; Park, Yong-In ; Kim, Chang-Dong ; Hwang, Yong-Kee

Author_Institution

Res. & Dev. Center, LG Display, Gyeonggi, South Korea

Volume

31

Issue

8

fYear

2010

Firstpage

833

Lastpage

835

Abstract

A 14.3-in flexible color electronic-paper display with the highest resolution has been developed. This display uses an electrophoretic material between a-Si:H thin-film transistors (TFTs) on a metal foil and a color filter array (CFA) coated onto a plastic substrate, allowing it to recover its original shape after being bent and to produce color images. To make this new display possible, low-temperature processes ( <; 150°C) for TFT and CFA on flexible substrates have been developed, resulting in the minimization of panel deformation and the prevention of circuit structure change. Here, we also develop a U-type dual TFT structure and a quad-type CFA pattern suitable for this reflective-type display.

Keywords

display devices; optical filters; substrates; thin film transistors; U-type dual TFT structure; circuit structure change; color filter array; electrophoretic material; flexible color electronic-paper display; flexible substrate; metal foil; plastic substrate; reflective-type display; thin film transistor-driven flexible color e-paper display; Active array; displays; electrophoresis; flexible structure; thin-film transistor (TFT);

fLanguage

English

Journal_Title

Electron Device Letters, IEEE

Publisher

ieee

ISSN

0741-3106

Type

jour

DOI

10.1109/LED.2010.2051531

Filename

5498866