Toward high-resolution, inkjet-printed, quantum dot light-emitting diodes for next generation displays
- Toward high-resolution, inkjet-printed, quantum dot light-emitting diodes for next generation displays
- 배완기; Jongseok Han; Donghyun Ko; Myeongjin Park; Jeongkyun Roh; Heeyoung Jung; Yeonkyung Lee; Yongwon Kwon; Jiho Sohn; Byung Doo Chin; Changhee Lee
- quantum dot; inkjet; light-emitting diode; display; high-resolution
- Issue Date
- JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY
- VOL 24, NO 9-551
- 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 spincoating 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.
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