New Current Programmed Pixel Circuit for Active-Matrix Organic Light-Emitting-Diode Displays

Author

Wang, F.H. ; Lin, H.C. ; Shin, P.S. ; Lin, L.Y. ; Liu, H.W.

Author_Institution

Nat. Chung Hsing Univ., Taichung

fYear

2007

fDate

20-22 Dec. 2007

Firstpage

1151

Lastpage

1154

Abstract

A new current programmed pixel circuit for active-matrix organic light-emitting-diode displays (AMOLED) was developed by using low temperature polycrystalline silicon (LTPS) technology. The new pixel circuit adopted not only asymmetric current mirror to reduce pixel charging time but two storage capacitors to increase OLED current holding ratio. The proposed current programmed pixel circuit kept high aperture ratio of the pixel and accurate OLED current despite parasitic resistance of power lines. Therefore, this pixel circuit is suitable for large size and high resolution AMOLED displays.

Keywords

capacitors; organic light emitting diodes; OLED; active-matrix organic light-emitting-diode displays; current programmed pixel circuit; low temperature polycrystalline silicon; storage capacitors; Active matrix organic light emitting diodes; Active matrix technology; Apertures; Capacitors; Circuits; Flat panel displays; Mirrors; Organic light emitting diodes; Silicon; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices and Solid-State Circuits, 2007. EDSSC 2007. IEEE Conference on

Conference_Location

Tainan

Print_ISBN

978-1-4244-0637-1

Electronic_ISBN

978-1-4244-0637-1

Type

conf

DOI

10.1109/EDSSC.2007.4450332

Filename

4450332