A New Low Temperature Polycrystalline Silicon Thin Film Transistor Pixel Circuit for Active Matrix Organic Light Emitting Diode

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概要

• 論文の詳細を見る

• This study presents one novel compensation pixel design and driving method for active matrix organic light-emitting diode (AMOLED) displays that use low-temperature polycrystalline silicon thin-film transistors (LTPS-TFTs) with a voltage feed-back method and the simulation results are proposed and verified by SPICE simulator. The measurement and simulation of LTPS TFT characteristics demonstrate the good fitting result. The proposed circuit consists of four TFTs and two capacitors with an additional signal line. The error rates of OLED anode voltage variation are below 0.3% under the threshold voltage deviation of driving TFT ($\Delta V_{\text{TH}} = \pm 0.33$ V). The simulation results show that the pixel design can improve the display image non-uniformity by compensating the threshold voltage deviation of driving TFT and the degradation of OLED threshold voltage at the same time.

• 2010-06-25

著者

• Lin Yi-yan

  Department Of Electronic Engineering National Taiwan University Of Science And Technology

• Fan Ching-lin

  Department Of Electronics Engineering & Institute Of Electronics National Chiao-tung University

• Ching-Lin Fan

  Department of Electronic Engineering, National Taiwan University of Science and Technology, 43 Sec. 4, Keelung Road, Taipei 106, Taiwan

• Yi-Yan Lin

  Department of Electronic Engineering, National Taiwan University of Science and Technology, 43 Sec. 4, Keelung Road, Taipei 106, Taiwan

• Yan-Wei Liu

  Department of Electronic Engineering, National Taiwan University of Science and Technology, 43 Sec. 4, Keelung Road, Taipei 106, Taiwan

• Chang Jyu-Yu

  Department of Electronic Engineering, National Taiwan University of Science and Technology, 43 Sec. 4, Keelung Road, Taipei 106, Taiwan

• Bo-Jhang Sun

  Graduate Institute of Electro-Optical Engineering, National Taiwan University of Science and Technology, 43 Sec. 4, Keelung Road, Taipei 106, Taiwan

• Jyu-Yu Chang

  Department of Electronic Engineering, National Taiwan University of Science and Technology, 43 Sec. 4, Keelung Road, Taipei 106, Taiwan

• Fan Ching-Lin

  Department of Electronic Engineering and Institute of Electronics, National Taiwan University of Science and Technology, 43 Sec. 4, Keelung Road, Taipei 106, Taiwan, R.O.C.

関連論文

• Effects of Rapid Thermal Annealing on Poly-Si TFT with Different Gate Oxide Thickness
• Effects of N_2O Plasma Treatment on the Performance of Excimer-Laser-Annealed Polycrystalline Silicon Thin Film Transistors
• Improvement in Brightness Uniformity by Compensating for the Threshold Voltages of Both the Driving Thin-Film Transistor and the Organic Light-Emitting Diode for Active-Matrix Organic Light-Emitting Diode Displays
• A New Low Temperature Polycrystalline Silicon Thin Film Transistor Pixel Circuit for Active Matrix Organic Light Emitting Diode
• Excellent Quality of SiO_2 Dielectric Film Prepared by Room-Temperature Ion Plating and Its Application to Thin-Film Transistors
• Effect of Inserting Teflon as a Surface Modification Layer on Bottom-Contact Pentacene-Based Organic Thin-Film Transistors
• Performance Improvement of Low-Temperature Polycrystalline Silicon Thin-Film Transistors with Fluorinated Silicate Glass Drive-In Masking Layer
• Improvement in Characteristics of Low-Temperature Polycrystalline Silicon Thin Film Transistors with High-Efficiency and Low-Damage N2 Plasma Pretreatment
• Low-Temperature-Processed Polycrystalline Silicon Thin-Film Transistors with Stable Solid-State Continuous-Wave Laser Crystallization

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