title: Organic light emitting board for dynamic interactive display.
abstract: Interactive displays involve the interfacing of a stimuli-responsive sensor with a visual human-readable response. Here, we describe a polymeric electroluminescence-based stimuli-responsive display method that simultaneously detects external stimuli and visualizes the stimulant object. This organic light-emitting board is capable of both sensing and direct visualization of a variety of conductive information. Simultaneous sensing and visualization of the conductive substance is achieved when the conductive object is coupled with the light emissive material layer on application of alternating current. A variety of conductive materials can be detected regardless of their work functions, and thus information written by a conductive pen is clearly visualized, as is a human fingerprint with natural conductivity. Furthermore, we demonstrate that integration of the organic light-emitting board with a fluidic channel readily allows for dynamic monitoring of metallic liquid flow through the channel, which may be suitable for biological detection and imaging applications.
authors.affiliation: Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea.
authors.forename: Eui Hyuk
authors.initials: EH
authors.lastname: Kim
authors.affiliation: Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea.
authors.forename: Sung Hwan
authors.initials: SH
authors.lastname: Cho
authors.affiliation: Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea.
authors.forename: Ju Han
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea.
authors.forename: Beomjin
authors.initials: B
authors.lastname: Jeong
authors.affiliation: Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea.
authors.forename: Richard Hahnkee
authors.initials: RH
authors.lastname: Kim
authors.affiliation: Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea.
authors.forename: Seunggun
authors.initials: S
authors.lastname: Yu
authors.affiliation: Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea.
authors.forename: Tae-Woo
authors.initials: TW
authors.lastname: Lee
authors.affiliation: Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea.
authors.forename: Wooyoung
authors.initials: W
authors.lastname: Shim
authors.affiliation: Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea.
authors.forename: Cheolmin
authors.initials: C
authors.lastname: Park