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 language | English |
|---|---|
| Title of host publication | AD'07 - Proceedings of Asia Display 2007 |
| Pages | 1499-1503 |
| Number of pages | 5 |
| Volume | 2 |
| Publication status | Published - 2007 Dec 1 |
| Event | Asia Display 2007, AD'07 - Shanghai, China Duration: 2007 Mar 12 → 2007 Mar 16 |
Other
| Other | Asia Display 2007, AD'07 |
|---|---|
| Country | China |
| City | Shanghai |
| Period | 07/3/12 → 07/3/16 |
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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
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 proceeding › Conference contribution
}
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 -