A Novel LTPS-TFT Pixel Circuit to Compensate the Electronic Degradation for Active-Matrix Organic Light-Emitting Diode Displays

A novel pixel driving circuit for active-matrix organic light-emitting diode (AMOLED) displays with low-temperature polycrystalline-silicon thin-film transistors (LTPS-TFTs) is studied. The proposed compensation pixel circuit is driven by voltage programming scheme, which is composed of five TFTs an...

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Main Authors: Ching-Lin Fan, Fan-Ping Tseng, Hui-Lung Lai, Bo-Jhang Sun, Kuang-Chi Chao, Yi-Chiung Chen
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/2013/839301
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author Ching-Lin Fan
Fan-Ping Tseng
Hui-Lung Lai
Bo-Jhang Sun
Kuang-Chi Chao
Yi-Chiung Chen
author_facet Ching-Lin Fan
Fan-Ping Tseng
Hui-Lung Lai
Bo-Jhang Sun
Kuang-Chi Chao
Yi-Chiung Chen
author_sort Ching-Lin Fan
collection DOAJ
description A novel pixel driving circuit for active-matrix organic light-emitting diode (AMOLED) displays with low-temperature polycrystalline-silicon thin-film transistors (LTPS-TFTs) is studied. The proposed compensation pixel circuit is driven by voltage programming scheme, which is composed of five TFTs and one capacitor, and has been certified to provide uniform output current by the Automatic Integrated Circuit Modeling Simulation Program with Integrated Circuit Emphasis (AIM-SPICE) simulator. The results of simulation show excellent performance, such as the low average error rate of OLED current variation (<0.5%) and the low average nonuniformity of OLED current variation (<0.8%) while the shift of threshold voltage of the driving poly-Si TFT and the OLED are both in the worst case ( V for TFT and  V for OLED). The proposed pixel circuit shows high immunity to the threshold voltage deviation of both the driving poly-Si TFT and the OLED.
format Article
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institution Kabale University
issn 1110-662X
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language English
publishDate 2013-01-01
publisher Wiley
record_format Article
series International Journal of Photoenergy
spelling doaj-art-c7dbcc7fa79646abaefd57832b69c9dc2025-02-03T01:28:48ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2013-01-01201310.1155/2013/839301839301A Novel LTPS-TFT Pixel Circuit to Compensate the Electronic Degradation for Active-Matrix Organic Light-Emitting Diode DisplaysChing-Lin Fan0Fan-Ping Tseng1Hui-Lung Lai2Bo-Jhang Sun3Kuang-Chi Chao4Yi-Chiung Chen5Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei 106, TaiwanGraduate Institute of Electro-Optical Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei 106, TaiwanDepartment of Electronic and Computer Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei 106, TaiwanGraduate Institute of Electro-Optical Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei 106, TaiwanDepartment of Electronic and Computer Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei 106, TaiwanGraduate Institute of Electro-Optical Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei 106, TaiwanA novel pixel driving circuit for active-matrix organic light-emitting diode (AMOLED) displays with low-temperature polycrystalline-silicon thin-film transistors (LTPS-TFTs) is studied. The proposed compensation pixel circuit is driven by voltage programming scheme, which is composed of five TFTs and one capacitor, and has been certified to provide uniform output current by the Automatic Integrated Circuit Modeling Simulation Program with Integrated Circuit Emphasis (AIM-SPICE) simulator. The results of simulation show excellent performance, such as the low average error rate of OLED current variation (<0.5%) and the low average nonuniformity of OLED current variation (<0.8%) while the shift of threshold voltage of the driving poly-Si TFT and the OLED are both in the worst case ( V for TFT and  V for OLED). The proposed pixel circuit shows high immunity to the threshold voltage deviation of both the driving poly-Si TFT and the OLED.http://dx.doi.org/10.1155/2013/839301
spellingShingle Ching-Lin Fan
Fan-Ping Tseng
Hui-Lung Lai
Bo-Jhang Sun
Kuang-Chi Chao
Yi-Chiung Chen
A Novel LTPS-TFT Pixel Circuit to Compensate the Electronic Degradation for Active-Matrix Organic Light-Emitting Diode Displays
International Journal of Photoenergy
title A Novel LTPS-TFT Pixel Circuit to Compensate the Electronic Degradation for Active-Matrix Organic Light-Emitting Diode Displays
title_full A Novel LTPS-TFT Pixel Circuit to Compensate the Electronic Degradation for Active-Matrix Organic Light-Emitting Diode Displays
title_fullStr A Novel LTPS-TFT Pixel Circuit to Compensate the Electronic Degradation for Active-Matrix Organic Light-Emitting Diode Displays
title_full_unstemmed A Novel LTPS-TFT Pixel Circuit to Compensate the Electronic Degradation for Active-Matrix Organic Light-Emitting Diode Displays
title_short A Novel LTPS-TFT Pixel Circuit to Compensate the Electronic Degradation for Active-Matrix Organic Light-Emitting Diode Displays
title_sort novel ltps tft pixel circuit to compensate the electronic degradation for active matrix organic light emitting diode displays
url http://dx.doi.org/10.1155/2013/839301
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