Proceedings of the Materials Research Society of Korea Conference (한국재료학회:학술대회논문집)
- 2012.05a
- /
- Pages.59.1-59.1
- /
- 2012
Polymer semiconductor based transistors for flexible display
- Lee, Ji-Yeol ;
- Lee, Bang-Rin ;
-
Kim, Ju-Yeong
;
- Jeong, Ji-Yeong ;
- Park, Jeong-Il ;
-
Jeong, Jong-Won
;
- Gu, Bon-Won ;
- Jin, Yong-Wan
- 이지열 (삼성전자 종합기술원) ;
- 이방린 (삼성전자 종합기술원) ;
-
김주영
(삼성전자 종합기술원) ;
- 정지영 (삼성전자 종합기술원) ;
- 박정일 (삼성전자 종합기술원) ;
-
정종원
(삼성전자 종합기술원) ;
- 구본원 (삼성전자 종합기술원) ;
- 진용완 (삼성전자 종합기술원)
- Published : 2012.05.17
Abstract
Organic thin-film transistors (OTFTs) with printable semiconductors are promising candidate devices for flexible active-matrix (AM) display applications. Yet, stable operation of actual display panels driven by OTFTs has seldom been reported up to date. Here, we demonstrate a flexible reflective type polymer dispersed liquid crystal (PDLC) display, in which inkjet-printed OTFT arrays are used as driving elements with excellent areal uniformity in terms of device performance. As the active semiconductor, a novel, ambient processable conjugated copolymer was synthesized. The stability of the devices with respect to electrical bias stress was improved by applying a channel-passivation layer, which suppresses the environmental effects and hence reduces the density of trap states at the channel/dielectric interface. The combination of high performance and high stability OTFT devices enabled the successful realization of stable operating flexible color-displays by inkjet-printing.