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High‐uniformity 2T1C AMOLED panels by a built‐in trimming method
Author(s) -
Lee TeYu,
Lin Chrong Jung,
King YaChin
Publication year - 2010
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/jsid18.8.544
Subject(s) - amoled , trimming , boosting (machine learning) , blanket , computer science , thin film transistor , materials science , artificial intelligence , composite material , layer (electronics) , active matrix , operating system
— A new built‐in trimming scheme boosting the OLED driving current through analog programming of the driver p ‐channel TFT is proposed. By using a selective programming operation, the current variation on the LTPS panel can be reduced to less than 1%. Another blanket‐boosting method is investigated for concurrent programming of the entire panel. This blanket‐boosting scheme has been successfully demonstrated on a 2.4‐in. AMOLED panel where the non‐uniformity improved from 8.1 to 4.9% under a worst‐case condition.