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P‐40: A Novel Data Driving Method and Circuits for AMOLED Displays
Author(s) -
Son YoungSuk,
Kim SangKyung,
Jeon YongJoon,
Woo YoungJin,
Jeon JinYong,
Lee GeonHo,
Cho GyuHyeong
Publication year - 2006
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 - 10.1889/1.2433498
Subject(s) - amoled , electronic circuit , capacitance , parasitic capacitance , driver circuit , line (geometry) , current (fluid) , computer science , electronic engineering , electrical engineering , materials science , voltage , engineering , active matrix , physics , mathematics , thin film transistor , layer (electronics) , geometry , electrode , quantum mechanics , composite material
A novel current‐mode driving method and driving circuits are proposed for AMOLED displays. The data driving speed in conventional current‐mode driving methods is dramatically enhanced by the proposed method and circuits. The proposed method shortens data driving time with feedback of the transient charging current from the parasitic capacitance of an adjacent data line. The current consumption and chip size of the data driver IC are reduced by a half, because one data driving circuit can drive two data lines of a display panel. 10 nA data current can be transferred to the pixel circuit of a display panel with sub‐nA accuracy in 15 μsec. The data line parasitic resistance and capacitance are 4 kohm and 20 pF, respectively.