Time-Domain Quaternary-Weighted Pulse Width Modulation Driving Method for Active Matrix Organic Light-Emitting Diode Displays

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概要

• 論文の詳細を見る

• We proposed a new digital driving method and its pixel structure for active matrix organic light-emitting diode (AMOLED) displays employing time-domain quaternary-weighted pulse width modulation. In the new digital driving method, the luminance of AMOLED displays is accurately determined by averaging photon flux to the desired level over a frame period. The proposed pixel was verified by spice simulation and the output linearity between the grayscale and the OLED current was successfully achieved. In the proposed digital driving pixel, the timing margin was increased and the effect on luminance of AMOLED displays by the troublesome variation of the thin-film transistors (TFTs) was suppressed without additional compensation schemes.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2008-03-25

著者

• Han Min-koo

  School Of Electrical Eng. & Computer Science #50 Seoul National University

• Kuk Seung-Hee

  School of Electrical Engineering and Computer Science #50, Seoul National University, San 56-1 Shinlim-dong, Kwanak-gu, Seoul 151-742, Korea

• Kuk Seung-Hee

  School of Electrical Engineering and Computer Science, Seoul National University, 599 Gwanak-ro, Sinlim-dong, Gwanak-gu, Seoul 151-742, Korea

• Park Hyun-Sang

  School of Electrical Engineering and Computer Science, Seoul National University, 599 Gwanak-ro, Sinlim-dong, Gwanak-gu, Seoul 151-742, Korea

• Han Min-Koo

  School of Electrical Engineering and Computer Science, Seoul National University, 599 Gwanak-ro, Sinlim-dong, Gwanak-gu, Seoul 151-742, Korea

• Han Min-Koo

  School of Electrical al Engineering and Computer Science #50, Seoul National University, Seoul 151-742, Korea

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