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P‐8: A New Hybrid Analog‐Digital Driving Method to Improve AMOLED Lifetime
Author(s) -
Shin DongYong,
Woo JongKwan,
Hong Yongtaek,
Kim Suhwan,
Kim KeumNam,
Kim HyeDong
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 - 10.1889/1.3069349
Subject(s) - amoled , oled , pixel , compensation (psychology) , voltage , computer science , materials science , thin film transistor , electronic engineering , electrical engineering , artificial intelligence , engineering , active matrix , psychology , layer (electronics) , psychoanalysis , composite material
We propose a new hybrid pixel driving method that combines conventional digital driving with analog compensation for the declining electrical performance that occurs as OLEDs age. Image uniformity, and thus display lifetime, is improved by directly measuring the variation in OLED voltage at each pixel for a given OLED current level and then controlling the voltage drop across its driving TFT of an individual pixel.