A New Active Pixel Design using μc-Si TFT Technology to Improve Brightness Uniformity of Organic Displays

Author

Gaillard, Archanmael ; Rogel, Regis ; Crand, Samuel ; Mohammed-Brahim, Tayeb ; Le Roy, Philippe ; Prat, Christophe

Author_Institution

Univ. de Rennes I, Rennes

fYear

2006

fDate

10-13 Dec. 2006

Firstpage

498

Lastpage

501

Abstract

In this paper, we propose and fabricate a new active pixel circuit design integrated on active-matrix organic light-emitting diode (AMOLED) display. Moreover, we have developed a thin film transistor (TFT) based on microcrystalline silicon (μc-Si) active layer for a more efficient process and a better uniformity of driving transistor characteristics. The experimental results show that the emission current uniformity is improved in contrast to the conventional 2-TFT pixel circuit. Thus the proposed averaging driver successfully improves the inter-pixel uniformity.

Keywords

LED displays; active networks; elemental semiconductors; network synthesis; organic light emitting diodes; silicon; thin film transistors; AMOLED; Si; TFT technology; active pixel design; brightness uniformity; driving transistor characteristics; emission current uniformity; inter-pixel uniformity; microcrystalline silicon active layer; organic displays; thin film transistor; Active matrix organic light emitting diodes; Active matrix technology; Brightness; Circuit synthesis; Driver circuits; Flat panel displays; Integrated circuit technology; Organic light emitting diodes; Silicon; Thin film transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2006. ICECS '06. 13th IEEE International Conference on

Conference_Location

Nice

Print_ISBN

1-4244-0394-4

Electronic_ISBN

1-4244-0395-2

Type

conf

DOI

10.1109/ICECS.2006.379834

Filename

4263412