Electrical Characteristics of Driver LSI with 35μm Thickness for Flexible Display

Michihiro ASAKAWA; Takuro NAKASHIMA; Tsubasa SAEKI; Reiji HATTORI; Akihiko YOKOO; Ryo SAKURAI; Norio NIHEI; Yoshitomo MASUDA

doi:10.1093/ietele/e91-c.10.1570

Special Section on Electronic Displays

Electrical Characteristics of Driver LSI with 35μm Thickness for Flexible Display

Michihiro ASAKAWA, Takuro NAKASHIMA, Tsubasa SAEKI, Reiji HATTORI, Akihiko YOKOO, Ryo SAKURAI, Norio NIHEI, Yoshitomo MASUDA

Author information

Keywords: electric paper display, flexible display, flexible LSI

JOURNAL RESTRICTED ACCESS

2008 Volume E91.C Issue 10 Pages 1570-1575

DOI https://doi.org/10.1093/ietele/e91-c.10.1570

Details

Abstract

Electrical characteristics of the mechanically flexible driver LSI as thin as 35μm mounted directly on a flexible display panel were precisely analyzed. The high-voltage transistors on this LSI show the current decrease by 10-30% in high voltage region, comparing with that of an ordinary thickness LSI. These phenomena can be associated with a self-heating effect. We considered the thermal diffusion on the thin chip by changing material of the measurement stage. Moreover, we analyzed the transistor characteristics on the thin chip under convex and concave bending conditions. The drain current change by piezoresistive effect was observed.

Corresponding author

Register with J-STAGE for free!