A new voltage-modulated AMOLED pixel design compensating for threshold voltage variation in poly-Si TFTs

Author

Jung, Sang-Hoon ; Nam, Woo-Jin ; Han, Min-Koo

Author_Institution

Sch. of Electr. Eng., Seoul Nat. Univ., South Korea

Volume

25

Issue

10

fYear

2004

Firstpage

690

Lastpage

692

Abstract

A new voltage-modulated active-matrix organic light-emitting diode (AMOLED) pixel design, which successfully compensates for the threshold voltage variations in poly-Si thin-film transitors (TFTs), is proposed, and verified by SPICE simulation and experiments. In order to compensate for variations in OLED current, the proposed pixel design employs a new voltage modulation scheme using diode connections.

Keywords

LED displays; SPICE; organic light emitting diodes; silicon; thin film transistors; AMOLED pixel design; OLED current; SPICE simulation; Si; active-matrix organic light-emitting diode; poly-Si TFT; poly-Si thin-film transistors; threshold voltage variation; voltage modulation; Active matrix organic light emitting diodes; Capacitors; Circuits; Electric variables; Flat panel displays; Modulation coding; Organic light emitting diodes; Switches; Thin film transistors; Threshold voltage; AMOLED; Active-matrix organic light-emitting diode; TFT; pixel design; poly-Si thin-film transistors; voltage modulation;

fLanguage

English

Journal_Title

Electron Device Letters, IEEE

Publisher

ieee

ISSN

0741-3106

Type

jour

DOI

10.1109/LED.2004.836028

Filename

1336973