Thin film transistors for addressing LC-flat panel displays

Author

Kallfass, Traugott

Author_Institution

Inst. fuer Netzwerk- und Systemtheorie, Stuttgart Univ., West Germany

fYear

1989

fDate

8-12 May 1989

Firstpage

42420

Lastpage

42423

Abstract

Thin-film transistors (TFTs) are exceptionally qualified for addressing large-area liquid-crystal displays. The TFT circuits and the requirements for operating the picture elements in the displays are described. Further comments focus on the staggered structure of the TFTs and the materials a-Si:H and poly-CdSe used as semiconductors and Ta₂O₅, SiO₂, and SiN for gate isolators. The electrical data (such as mobility and off-current) of the TFTs determine the optical performance of the displays, characterized by a high contrast and a wide viewing angle

Keywords

flat panel displays; liquid crystal displays; thin film transistors; CdSe-SiO₂-Ta₂O₅; LC-flat panel displays; Si:H-SiN_x; TFT circuits; high contrast; large-area liquid-crystal displays; mobility; off-current; optical performance; thin film transistors; wide viewing angle; Computer displays; Counting circuits; Electrodes; Glass; Large screen displays; Liquid crystal displays; Substrates; Switches; Thin film transistors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

CompEuro '89., 'VLSI and Computer Peripherals. VLSI and Microelectronic Applications in Intelligent Peripherals and their Interconnection Networks', Proceedings.

Conference_Location

Hamburg

Print_ISBN

0-8186-1940-6

Type

conf

DOI

10.1109/CMPEUR.1989.93364

Filename

93364