New voltage-programmed AMOLED pixel circuit to compensate for nonuniform electrical characteristics of LTPS TFTs and voltage drop in power line

Chih Lung Lin, Chia Che Hung, Po Syun Chen, Po Chun Lai, Mao Hsun Cheng

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

This paper presents a simple pixel structure that uses the voltage-programmed method to compensate for the electrical characteristic variations in low-temperature polycrystalline-silicon thin-film transistors and the current-resistance (I-R) voltage drop in the power line for active-matrix organic light-emitting diode displays. Based on the experimental results, the functionality of the pixel circuit can be operated correctly during each operation phase. Moreover, the pixel current exhibits high uniformity against the threshold voltage and mobility variations in the driving TFT.

Original languageEnglish
Article number6824793
Pages (from-to)2454-2458
Number of pages5
JournalIEEE Transactions on Electron Devices
Volume61
Issue number7
DOIs
Publication statusPublished - 2014 Jul

Fingerprint

Pixels
Networks (circuits)
Electric potential
Organic light emitting diodes (OLED)
Thin film transistors
Threshold voltage
Polysilicon
Display devices
Voltage drop
Temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

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abstract = "This paper presents a simple pixel structure that uses the voltage-programmed method to compensate for the electrical characteristic variations in low-temperature polycrystalline-silicon thin-film transistors and the current-resistance (I-R) voltage drop in the power line for active-matrix organic light-emitting diode displays. Based on the experimental results, the functionality of the pixel circuit can be operated correctly during each operation phase. Moreover, the pixel current exhibits high uniformity against the threshold voltage and mobility variations in the driving TFT.",
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New voltage-programmed AMOLED pixel circuit to compensate for nonuniform electrical characteristics of LTPS TFTs and voltage drop in power line. / Lin, Chih Lung; Hung, Chia Che; Chen, Po Syun; Lai, Po Chun; Cheng, Mao Hsun.

In: IEEE Transactions on Electron Devices, Vol. 61, No. 7, 6824793, 07.2014, p. 2454-2458.

Research output: Contribution to journalArticle

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AU - Cheng, Mao Hsun

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