Design of the Pixel and Row Driving Circuits Using IGZO TFT for QVGA AMOLED

Abstract:

An Amorphous IGZO (a-IGZO) TFTs pixel driving circuit and row driving circuit for AMOLED are proposed. The pixel driving circuit is composed of four a-IGZO TFTs and one capacitor (4T-1C), which effectively compensates the threshold-voltage-shift (ΔV_th1V) of the drive TFT, and shift registers, NAND gates and inverters constitute the row driving circuit. To verify the effect of the proposed circuit, simulation using H-spice was performed, and results prove that the presented circuit can be applied to monochromatic 2-inches QVGA AMOLED.

• Periodical: Applied Mechanics and Materials (Volumes 380-384)
• Pages: 3073-3076
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.380-384.3073
• Online since: August 2013
• Authors: Chun Cheng Yang, Xin Chen, Jian Zhang, Chuan Nan Li
• Keywords: A-IGZO-TFT, Pixel Circuit, Shift Register, Threshold-Voltage-Shift

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