A simple LTPS pixel circuit composed of two transistors and one capacitor for AMOLED displays

Chih Lung Lin; Chun Ming Lu; Po Chun Lai; Chia Che Hung

doi:10.1002/j.2168-0159.2014.tb00257.x

A simple LTPS pixel circuit composed of two transistors and one capacitor for AMOLED displays

Chih Lung Lin, Chun Ming Lu, Po Chun Lai, Chia Che Hung

Department of Electrical Engineering

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

This work presents a simple pixel circuit that utilizes two low-temperature polycrystalline-silicon thin-film transistors (LTPS TFTs) and one capacitor for active-matrix organic light-emitting diode (AMOLED) displays with voltage-programmed method. According to simulation results under 120 Hz frame rate and Full-HD resolution, the relative current error rates with ±0.5 V threshold voltage variation of the driving TFT are less than 3.4% over entire range of data voltages. Therefore, the proposed pixel circuit effectively compensates for threshold voltage variation of the driving TFT, and it can be applied to small-sized and high-resolution displays.

Original language	English
Pages (from-to)	990-993
Number of pages	4
Journal	Digest of Technical Papers - SID International Symposium
Volume	45
Issue number	1
DOIs	https://doi.org/10.1002/j.2168-0159.2014.tb00257.x
Publication status	Published - 2014 Jun

All Science Journal Classification (ASJC) codes

Engineering(all)

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title = "A simple LTPS pixel circuit composed of two transistors and one capacitor for AMOLED displays",

abstract = "This work presents a simple pixel circuit that utilizes two low-temperature polycrystalline-silicon thin-film transistors (LTPS TFTs) and one capacitor for active-matrix organic light-emitting diode (AMOLED) displays with voltage-programmed method. According to simulation results under 120 Hz frame rate and Full-HD resolution, the relative current error rates with ±0.5 V threshold voltage variation of the driving TFT are less than 3.4% over entire range of data voltages. Therefore, the proposed pixel circuit effectively compensates for threshold voltage variation of the driving TFT, and it can be applied to small-sized and high-resolution displays.",

author = "Lin, {Chih Lung} and Lu, {Chun Ming} and Lai, {Po Chun} and Hung, {Chia Che}",

year = "2014",

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T1 - A simple LTPS pixel circuit composed of two transistors and one capacitor for AMOLED displays

AU - Lin, Chih Lung

AU - Lu, Chun Ming

AU - Lai, Po Chun

AU - Hung, Chia Che

PY - 2014/6

Y1 - 2014/6

N2 - This work presents a simple pixel circuit that utilizes two low-temperature polycrystalline-silicon thin-film transistors (LTPS TFTs) and one capacitor for active-matrix organic light-emitting diode (AMOLED) displays with voltage-programmed method. According to simulation results under 120 Hz frame rate and Full-HD resolution, the relative current error rates with ±0.5 V threshold voltage variation of the driving TFT are less than 3.4% over entire range of data voltages. Therefore, the proposed pixel circuit effectively compensates for threshold voltage variation of the driving TFT, and it can be applied to small-sized and high-resolution displays.

AB - This work presents a simple pixel circuit that utilizes two low-temperature polycrystalline-silicon thin-film transistors (LTPS TFTs) and one capacitor for active-matrix organic light-emitting diode (AMOLED) displays with voltage-programmed method. According to simulation results under 120 Hz frame rate and Full-HD resolution, the relative current error rates with ±0.5 V threshold voltage variation of the driving TFT are less than 3.4% over entire range of data voltages. Therefore, the proposed pixel circuit effectively compensates for threshold voltage variation of the driving TFT, and it can be applied to small-sized and high-resolution displays.

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JO - Digest of Technical Papers - SID International Symposium

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