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P‐35: New Voltage‐Programmed AMOLED Pixel Circuit Employing In‐Pixel Compensation Scheme for Mobility Variation
Author(s) -
Lin Chih-Lung,
Chen Fu-Hsing,
Liu Yen-Ting,
Lu Chun-Ming,
Wu Wan-Lin
Publication year - 2016
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/sdtp.10872
Subject(s) - amoled , thin film transistor , materials science , threshold voltage , compensation (psychology) , active matrix , oled , pixel , optoelectronics , transistor , voltage , overdrive voltage , voltage drop , electrical engineering , optics , engineering , physics , psychology , layer (electronics) , composite material , psychoanalysis
This work proposes a new active‐matrix organic light‐emitting diode (AMOLED) pixel circuit using an in‐pixel mobility compensation technique. Moreover, the circuit can compensate for both power line voltage drop and threshold voltage variation. Thus, it is suited for backplanes utilizing p‐type low‐temperature polycrystalline‐silicon thin‐film transistors (LTPS TFTs). Simulated results demonstrate that the compensation functions are succeed at a Full HD (1920×1080) resolution with a 60 Hz frame rate. The current error rates of power line voltage drop and threshold voltage variation are all below 3%, and those of mobility variation are below 6.5%.