Toward high-resolution, inkjet-printed, quantum dot light-emitting diodes for next-generation displays

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• 作者：Jongseok Han ; Donghyun Ko ; Myeongjin Park ; Jeongkyun Roh ; Heeyoung Jung ; Yeonkyung Lee ; Yongwon Kwon ; Jiho Sohn ; Wan Ki Bae ; Byung Doo Chin and Changhee Lee
• 刊名：Journal of the Society for Information Display
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：24
• 期：9
• 页码：545-551
• 全文大小：588K
• ISSN：1938-3657

文摘

We have investigated the possibility of fabricating quantum dot light-emitting diodes (QLEDs) using inkjet printing technology, which is the most attractive method for the full-color patterning of QLED displays. By controlling the quantum dot (QD) ink formulation and inkjet printing condition, we successfully patterned QLED pixels in the 60-in ultrahigh definition TV format, which has a resolution of 73 pixels per inch. The inkjet-printed QLEDs exhibited a maximum luminance of 2500 cd/m². Although the performance of inkjet-printed QLEDs is low compared with that of QLEDs fabricated using the spin-coating process, our results clearly indicate that the inkjet printing technology is suitable for patterning QD emissive layers to realize high-resolution, full-color QLED displays.