Fabrication process of flexible phosphorescent OLED by ink-jet printing method
We have achieved a 100 ppi flexible OLED driven by oxide TFT using a PEN film substrate for a 8VGA display panel. An IGZO-TFT backplane was formed by photolithography and an etching process. The maximum processing temperature of the IGZO-TFT backplane was 130 °C. The fabricated TFT showed a field-effect mobility of 3.6 cm2/Vs. Phosphorescent OLED layers were formed by ink-jet printing. A uniform film more than 90％ flat area was obtained by using our phosphorescent polymer. The effect was investigated of the bank structure on the device performance, which was constructed for keeping the ink-jet droplets into each pixel. Also, we evaluated solvents determining ink-jettability and emission efficiency.
OLED phosphorescent polymer plastic film substrate flexible display oxide TFT IGZO olefin-type polymer ink-jet printing
T. Shimizu T. Yamamoto H. Fujikake M. Suzuki H. Fukagawa G. Motomura Y. Nakajima M. Nakata H. Sato Y.Fujisaki T. Takei
NHK Science and Technology Research Laboratories 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan
国际会议
China Display/Asia Display 2011(2011年中国显示/亚洲显示会议)
江苏昆山
英文
99-102
2011-11-07（万方平台首次上网日期，不代表论文的发表时间）