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32.1: Invited Paper: An Inkjet Printed 31‐inch UHD AMOLED Display
Author(s) -
Wu Yuan Chun,
Wu Tsungyuan,
Iguchi Shinsuke,
Li Xiang-Long,
Zhou Jiankai,
Hao Peng,
Cai Yuying,
Tang Jia,
Zhou Xing-Yu,
Hsu Yuan-Jun,
Lu Po-Yen
Publication year - 2018
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.12723
Subject(s) - amoled , materials science , inkwell , inkjet printing , chemical mechanical planarization , pixel , optoelectronics , oled , cathode , printed electronics , computer science , computer graphics (images) , nanotechnology , electrical engineering , thin film transistor , artificial intelligence , active matrix , engineering , layer (electronics) , composite material
An inkjet printed 31‐inch UHD AMOLED display has been successfully developed in this report. Special designed small size pixels, high thermal stable top‐gate self‐aligned a‐IGZO TFTs, multiple‐planarization method and cost‐efficient inkjet printing process make the display very attractive. For the AMOLED display, HIL, HTL and EML (Red, Green, Blue) layers were printed in multiple‐planarized small pixels by precisely controlling the ink droplets. And ETL, cathode were prepared on the whole panel by VTE with just common masks instead of complicated and expensive FMMs, which provides a low‐cost fabrication approach for the following emerging inkjet printing display era. The light‐on image of the developed display indicates that good full color and display uniformity has been successfully realized.