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

Author:

Yang Chun Cheng1,Chen Xin1,Zhang Jian1,Li Chuan Nan1

Affiliation:

1. Jilin University

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 (ΔVth1V) 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.

Publisher

Trans Tech Publications, Ltd.

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