Design of Pixel Circuit for AMOLED Using Pentacene TFTs

펜타센 TFT를 이용한 AMOLED 픽셀회로 설계

  • Published : 2006.06.01

Abstract

In this paper, we designed a pixel circuit for AMOLED display based on organic thin film transistors and analyzed the operation with SPICE simulation. First, we theoretically designed the pixel circuit with the result of layout for fabricating $32\times32$ AMOLED panel, TFT W/L and capacitance of storage capacitor. And we simulated the designed pixel circuit using HSPICE for analyzing electrical performance. As a result of simulation, we identified the possibility of AMOLED display based on OTFTs.

본 논문에서는 OTFT를 기반으로 하는 AMOLED 디스플레이 구현을 위해 두 개의 OTFT와 하나의 캐패시터 그리고 하나의 OLED로 구성된 화소 회로를 설계하였고 그 동작을 시뮬레이션을 통하여 분석하였다. 먼저, 화소 회로를 이론적으로 설계하였고, $32\times32$ AMOLED 패널을 제작하기 위한 화소의 Layout을 설계하고 TFT W/L과 저장 캐패시터의 용량을 설계하였다. 그리고 설계된 화소 회로의 전기적 특성을 분석하기 위해 HSPICE 시뮬레이션 하였다 시뮬레이션 결과 OTFT 기반의 AMOLED 구현 가능성을 확인하였다.

Keywords

References

  1. Mutsumi Kimura, Ichio Yudasaka, Sadao Kanbe, 'Low-Temperature PolySilicon Thin Film Transistor Driving with Integrated Driver for High-Resolution Light Emitting Polymer Display', IEEE Transaction on Electron Devices, Vol. 46, no. 12, pp. 2282, Dec., 1999 https://doi.org/10.1109/16.808054
  2. Arokia Nathan, Anli Kumar, Kapil Sakariya, etc, 'Amorphous Silicon Back-Plane Electronics for OLED Displays,' IEEE Journal of Selected Topics in Quntum Electronics, Vol. 10, no. 1, pp.58-69, Jan, 2004 https://doi.org/10.1109/JSTQE.2004.824105
  3. Takashi Chuman, Satoru Ohta, Satoshi Miyaguchi, Hideo Satoh, etc, 'Active Matrix Organic Light Emitting Diode Panel using Organic Thin-Film Transistors', SID 04 Digest, pp. 45, 2004 https://doi.org/10.1889/1.1811452
  4. T. W. Kelley, D. V. Muyres, P. F. Baude, T. P. Smith, T. D. Jones, 'High Performance Organic Thin Film Transistors,' in Proc. 2003 MRS Spring Meeting, pp. 226. San Francisco, U.S.A., April 2003
  5. MasatoshiKitamura, Tadahiro Imada and yasuhiko Arakawa, 'Organic Transistor Circuits for Application to Organic Light-Emitting-diode Displays', Jpn. J. Appl. Phys., Vol. 42, pp. 2483-2487, 2003 https://doi.org/10.1143/JJAP.42.2483
  6. HU Yuan-Chuan, DONG Gui-Fang, WANG Li-Duo, etc., 'Organic Light-Emitting-Diodes Driven by Organic Transistors', CHIN. PHYS. LETT., Vol. 21, no. 4, pp. 723-725, 2003 https://doi.org/10.1088/0256-307X/21/4/038
  7. Lisong Zhou, Sungkyu Park, Bo Bai, Jie Sun, Sheng-Chu Wu, Thomas N. Jackson, Shelby Nelson, Diane Freeman, and Yongtaek Hong, 'Pentacene TFT Driven AM OLED Displays', IEEE ELECTRON DEVICE LETTERS, 2005 https://doi.org/10.1109/LED.2005.853654
  8. M. Kitamura, T. Imada and Y. Arakawa, 'Organic Light-Emitting Diodes Driven by Pentacene-based Thin-Film Transistors', APPLIED PHYSICS LETTERS, Vol. 83, no. 16, pp. 3410-3412, 2003 https://doi.org/10.1063/1.1620676
  9. 최기범, 류기성, 정 현, 송정근, '펜타센 TFT와 유기 LED로 구성된 픽셀 어레이 제작', 대한전자공학회논문지, 제 42 권 SD편 12호, 13-18쪽, 2005년
  10. Reiji Hattori, Tsutomu Tsukamizu, Ryusuke Tsuchiya, Kazunori Miyake, Yi He, IEICE TRANS. ELECTRON, Vol. E83-C, no.5 May, 2000