Toward Novel Flexible Display - Top-Emitting OLEDs on Al-Laminated PET Substrates

Author

Zhu, Furong ; Hao, Xiao-Tao ; Soo, Ong Kian ; Li, Yanqing ; Tan, Li-Wei

Author_Institution

Inst. of Mater. Res. & Eng., Singapore

Volume

93

Issue

8

fYear

2005

Firstpage

1440

Lastpage

1446

Abstract

We developed a flexible organic LED (OLED) using a top-emitting OLED (TOLED) architecture. The concept of our flexible OLED design is based on integration of a TOLED structure on an aluminum-laminated polyethylene terephthalate (Al-PET) substrate. Microcavity TOLEDs were formed for color tuning and efficiency enhancement. For a flexible TOLED with a 110-nm-thick poly (p-phenylenevinylene) light-emitting layer, it exhibited a luminous efficiency of 4.6 cd/A at 10 V. The performance of a TOLED made on a plastic substrate is analyzed and compared with that of the identical device on a rigid glass substrate. It is demonstrated that the flexible TOLED on Al-PET foil can be bent to a substantial degree without breaking.

Keywords

aluminium; display devices; organic light emitting diodes; polymers; substrates; Al-PET foil; aluminum-laminated polyethylene terephthalate; color tuning; efficiency enhancement; flexible display; flexible substrate; light-emitting layer; organic LED; plastic substrate; top-emitting OLED; Anodes; Cathodes; Flat panel displays; Liquid crystal displays; Moisture; Organic light emitting diodes; Plasma displays; Plastics; Positron emission tomography; Substrates; Displays; flexible substrate; organic LED (OLED);

fLanguage

English

Journal_Title

Proceedings of the IEEE

Publisher

ieee

ISSN

0018-9219

Type

jour

DOI

10.1109/JPROC.2005.851627

Filename

1468599