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22.1: Invited Paper : Technological Challenges for Large‐Size AMOLED Display
Author(s) -
Kim Hye Dong,
Jeong Jae Kyeong,
Chung HyunJoong,
Mo YeonGon
Publication year - 2008
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 - 10.1889/1.3069649
Subject(s) - backplane , amoled , thin film transistor , materials science , optoelectronics , amorphous solid , oled , nanotechnology , computer science , active matrix , computer hardware , chemistry , organic chemistry , layer (electronics)
In this work, we review the current technological challenges for large‐Size AMOLED displays with an emphasis on the backplane technology. Then, it will be discussed how the new technology of oxide TFTs combines the advantages of LTPS and a‐Si TFTs to make an optimal solution for large‐Size backplanes. In particular, we reveal the technological challenges in oxide TFTs by comparing the device characteristics of conventional excimer laser annealing (ELA) LTPS and amorphous indium‐gallium‐zinc‐oxide (a‐IGZO) TFTs. Finally, we demonstrate a 12.1″ WXGA AMOLED prototype display fabricated by an a‐IGZO TFT backplane.