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41.1: Invited Paper : LTPS Technology for Improving the Uniformity of AMOLEDs
Author(s) -
Hong SoonKwang,
Kim ByeongKoo,
Ha YongMin
Publication year - 2007
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 - 10.1889/1.2785567
Subject(s) - compensation (psychology) , brightness , crystallization , excimer laser , chip , materials science , amoled , pixel , fabrication , process (computing) , computer science , optoelectronics , laser , nanotechnology , optics , engineering , artificial intelligence , thin film transistor , telecommunications , physics , operating system , psychology , medicine , chemical engineering , layer (electronics) , active matrix , alternative medicine , psychoanalysis , pathology
We have evaluated various compensation techniques to improve the brightness uniformity of AMOLEDs fabricated by excimer laser crystallization. Every method has some limitations in terms of performance and cost in case that compensation functions are implemented in pixel arrays. Recently, we have developed a new compensation technique of which function is implemented in the driving IC chip instead of pixel arrays. In addition, we have also developed a novel solid phase crystallization (a‐SPC) process so that both the uniformity of display and the fabrication cost performance can be enhanced. A 20.1‐in. sized AMOLED has been successfully demonstrated by this novel crystallization technology.