Driving Method Compensating for the Hysteresis of Polycrystalline Silicon Thin-Film Transistors for Active-Matrix Organic Light-Emitting Diode Displays

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概要

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• A new driving method for active-matrix organic light-emitting diode displays is proposed and evaluated. The pixel structure of the proposed driving method is composed of three thin-film transistors (TFTs) and one capacitor. It inserts black data into display images to reset driving TFTs for the purpose of maintaining constant electrical characteristics of driving TFTs. The proposed driving scheme is less sensitive to the hysteresis of low-temperature polycrystalline silicon (LTPS) TFTs than the conventional pixel structure with two TFTs and one capacitor, and this scheme can virtually eliminate the recoverable residual image that occurs owing to the hysteresis characteristics of LTPS TFTs. In the proposed driving scheme, black data are inserted into displayed images so that the motion image quality is improved.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2009-05-25

著者

• Kim Ohyun

  Department Of Electrical And Electronic Engineering

• Chung Hoon-ju

  School Of Electronic Engineering Kumoh National Institute Of Technology

• Chung Hoon-Ju

  School of Electronic Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 730-701, Republic of Korea

• Jung Myoung-Hoon

  Department of Electronic and Electrical Engineering, Pohang University of Science and Technology, Pohang, Gyeongbuk 790-784, Republic of Korea

• Kim Byeong-Koo

  Mobile Applied Product Development Team, LG Display Co., Ltd., 161 Imsu-dong, Gumi, Gyeongbuk 730-350, Republic of Korea

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