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

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)990-993
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Volume45
Issue number1
DOIs
Publication statusPublished - 2014 Jun

Fingerprint

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

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

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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.",
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A simple LTPS pixel circuit composed of two transistors and one capacitor for AMOLED displays. / Lin, Chih Lung; Lu, Chun Ming; Lai, Po Chun; Hung, Chia Che.

In: Digest of Technical Papers - SID International Symposium, Vol. 45, No. 1, 06.2014, p. 990-993.

Research output: Contribution to journalArticle

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