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P‐16: 3‐TFT OLED Pixel Circuit for High Stability with In‐pixel Current Source
Author(s) -
Liu Ting,
Sturm James C.
Publication year - 2012
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/j.2168-0159.2012.tb05984.x
Subject(s) - pixel , thin film transistor , oled , threshold voltage , current (fluid) , current source , materials science , optoelectronics , electrical engineering , voltage , computer science , transistor , artificial intelligence , engineering , nanotechnology , layer (electronics)
A new 3‐TFT voltage‐programmed pixel circuit with an in‐pixel current source is presented, which can be largely insensitive to the TFT threshold voltage shift. The fabricated pixel circuit provides OLED current ranging from 25nA to 2.9μA, an on/off ratio of 116 at typical QVGA display timing.