A new organic TFT based current programmed pixel circuit for driving active-matrix OLEDs

Sang Jun Hwang, Aram Shin, Yohan Kim, Man Young Sung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A new current-driving pixel circuit for active-matrix organic light-emitting diodes (AMOLEDs), composed of four organic thin-film transistors (OTFTs) and one capacitor, is proposed using a current scaling method. Designing pixel circuits with OTFTs has many problems due to the instability of the OTFT parameters with the material characteristics still unknown. Despite the problems in using OTFTs to drive the pixel circuit, our work could be set as a goal for future OTFT development. The simulation results show enhanced reliability between the OTFT parameters with improved linearity between input data and OLED luminescence at low current levels. Also, large variation of OTFT parameters such as threshold voltage and mobility was successfully compensated to reliable values.

Original languageEnglish
Title of host publicationAD'07 - Proceedings of Asia Display 2007
Pages1499-1503
Number of pages5
Volume2
Publication statusPublished - 2007 Dec 1
EventAsia Display 2007, AD'07 - Shanghai, China
Duration: 2007 Mar 122007 Mar 16

Other

OtherAsia Display 2007, AD'07
CountryChina
CityShanghai
Period07/3/1207/3/16

Fingerprint

Organic light emitting diodes (OLED)
Thin film transistors
Pixels
Networks (circuits)
Threshold voltage
Luminescence
Capacitors

Keywords

  • Active-matrix
  • Organic light-emitting diode (OLED)
  • Organic thin-film transistor (OTFT)
  • Pixel circuit

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

Hwang, S. J., Shin, A., Kim, Y., & Sung, M. Y. (2007). A new organic TFT based current programmed pixel circuit for driving active-matrix OLEDs. In AD'07 - Proceedings of Asia Display 2007 (Vol. 2, pp. 1499-1503)

A new organic TFT based current programmed pixel circuit for driving active-matrix OLEDs. / Hwang, Sang Jun; Shin, Aram; Kim, Yohan; Sung, Man Young.

AD'07 - Proceedings of Asia Display 2007. Vol. 2 2007. p. 1499-1503.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hwang, SJ, Shin, A, Kim, Y & Sung, MY 2007, A new organic TFT based current programmed pixel circuit for driving active-matrix OLEDs. in AD'07 - Proceedings of Asia Display 2007. vol. 2, pp. 1499-1503, Asia Display 2007, AD'07, Shanghai, China, 07/3/12.
Hwang SJ, Shin A, Kim Y, Sung MY. A new organic TFT based current programmed pixel circuit for driving active-matrix OLEDs. In AD'07 - Proceedings of Asia Display 2007. Vol. 2. 2007. p. 1499-1503
Hwang, Sang Jun ; Shin, Aram ; Kim, Yohan ; Sung, Man Young. / A new organic TFT based current programmed pixel circuit for driving active-matrix OLEDs. AD'07 - Proceedings of Asia Display 2007. Vol. 2 2007. pp. 1499-1503
@inproceedings{28c72c265ab841a7852d4bf9111d7943,
title = "A new organic TFT based current programmed pixel circuit for driving active-matrix OLEDs",
abstract = "A new current-driving pixel circuit for active-matrix organic light-emitting diodes (AMOLEDs), composed of four organic thin-film transistors (OTFTs) and one capacitor, is proposed using a current scaling method. Designing pixel circuits with OTFTs has many problems due to the instability of the OTFT parameters with the material characteristics still unknown. Despite the problems in using OTFTs to drive the pixel circuit, our work could be set as a goal for future OTFT development. The simulation results show enhanced reliability between the OTFT parameters with improved linearity between input data and OLED luminescence at low current levels. Also, large variation of OTFT parameters such as threshold voltage and mobility was successfully compensated to reliable values.",
keywords = "Active-matrix, Organic light-emitting diode (OLED), Organic thin-film transistor (OTFT), Pixel circuit",
author = "Hwang, {Sang Jun} and Aram Shin and Yohan Kim and Sung, {Man Young}",
year = "2007",
month = "12",
day = "1",
language = "English",
isbn = "9787561752289",
volume = "2",
pages = "1499--1503",
booktitle = "AD'07 - Proceedings of Asia Display 2007",

}

TY - GEN

T1 - A new organic TFT based current programmed pixel circuit for driving active-matrix OLEDs

AU - Hwang, Sang Jun

AU - Shin, Aram

AU - Kim, Yohan

AU - Sung, Man Young

PY - 2007/12/1

Y1 - 2007/12/1

N2 - A new current-driving pixel circuit for active-matrix organic light-emitting diodes (AMOLEDs), composed of four organic thin-film transistors (OTFTs) and one capacitor, is proposed using a current scaling method. Designing pixel circuits with OTFTs has many problems due to the instability of the OTFT parameters with the material characteristics still unknown. Despite the problems in using OTFTs to drive the pixel circuit, our work could be set as a goal for future OTFT development. The simulation results show enhanced reliability between the OTFT parameters with improved linearity between input data and OLED luminescence at low current levels. Also, large variation of OTFT parameters such as threshold voltage and mobility was successfully compensated to reliable values.

AB - A new current-driving pixel circuit for active-matrix organic light-emitting diodes (AMOLEDs), composed of four organic thin-film transistors (OTFTs) and one capacitor, is proposed using a current scaling method. Designing pixel circuits with OTFTs has many problems due to the instability of the OTFT parameters with the material characteristics still unknown. Despite the problems in using OTFTs to drive the pixel circuit, our work could be set as a goal for future OTFT development. The simulation results show enhanced reliability between the OTFT parameters with improved linearity between input data and OLED luminescence at low current levels. Also, large variation of OTFT parameters such as threshold voltage and mobility was successfully compensated to reliable values.

KW - Active-matrix

KW - Organic light-emitting diode (OLED)

KW - Organic thin-film transistor (OTFT)

KW - Pixel circuit

UR - http://www.scopus.com/inward/record.url?scp=77958071600&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77958071600&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:77958071600

SN - 9787561752289

VL - 2

SP - 1499

EP - 1503

BT - AD'07 - Proceedings of Asia Display 2007

ER -