High-Aperture Pixel Design Employing $V_{\text{DD}}$ Line Elimination for Active Matrix Organic Light Emitting Diode Display

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概要

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• High-aperture ratio pixel design employing polycrystalline silicon thin-film transistors (poly-Si TFTs) for active matrix organic light emitting diode (AMOLED) displays is proposed. The $V_{\text{DD}}$ supply line in each pixel is eliminated and the gate scan line is utilized as a $V_{\text{DD}}$ supply so that the pixel aperture ratio is increased considerably. The increased emission area achieves low current density through OLED, thus the troublesome OLED luminance degradation would be suppressed and the life-time of OLED materials may be increased. In order to implement the proposed pixel driving, a new fabrication process for the storage capacitor ($C_{\text{ST}}$) which uses indium–tin oxide (ITO) and the cathode layers is presented.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2006-04-15

著者

• LEE Jae-Hoon

  School of Electrical Engineering & Computer Science Kyungpook National University

• Han Min-koo

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

• Nam Woo-Jin

  School of Electrical Engineering #50, Seoul National University, Shinlim-dong, Gwanak-gu, Seoul 151-742, Korea

• Lee Hye-Jin

  School of Electrical Engineering #50, Seoul National University, Shinlim-dong, Gwanak-gu, Seoul 151-742, Korea

• Kim Chang-Yeon

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

• Lee Jae-Hoon

  School of Electrical Engineering, Seoul National University, Seoul 151-742, Korea

• Lee Hye-Jin

  School of Electrical Engineering, Seoul National University, Seoul 151-742, Korea

• Han Min-Koo

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

• Nam Woo-Jin

  School of Electrical Engineering #50, Seoul National University, 151-742 Seoul, Korea

• Nam Woo-Jin

  School of Electrical Engineering, Seoul National University, Seoul 151-742, Korea

• Kim Chang-Yeon

  School of Electrical Engineering, Seoul National University, Seoul 151-742, Korea

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