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DevelopmentStudy of Thin Films for Electroluminescent Flat Panel Display

DevelopmentStudy of Thin Films for Electroluminescent Flat Panel Display This paper concerns an allsolidstate, highcontrast electroluminescent EL flat panel display which is becoming the potential for multifunctional avionic displays. In this ACTFEL a.c. thin film electroluminescent flat panel device, an active layer, doped with manganese ZnSMn is sandwiched between the two dielectric layers followed by conductive layers. All the layers are transparent except the back conductive layer. In the basic mode of operation, an alternating voltage is applied across any two crossing electrodes. When this voltage exceeds the threshold voltage, light is emitted from the active layer. EL mechanism the generation of electrons, acceleration of these electrons to optical energies, and collision excitation of the Mn ions yielding light emission occurs within the film or at the surface of the ZnSMn layer. A bright yellow light, in the visible region and with a relatively broad spectrum, is emitted. The TFEL display's thinness, compactness, low weight, moderately low power requirements and durability are its prime advantages. The characteristics of various thin films utilised in TFEL have been studied, and the data in this paper show the optimum requirements for luminance, efficiency and reliability of the light emission in ACTFEL. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Microelectronics International Emerald Publishing

DevelopmentStudy of Thin Films for Electroluminescent Flat Panel Display

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
1356-5362
DOI
10.1108/eb044468
Publisher site
See Article on Publisher Site

Abstract

This paper concerns an allsolidstate, highcontrast electroluminescent EL flat panel display which is becoming the potential for multifunctional avionic displays. In this ACTFEL a.c. thin film electroluminescent flat panel device, an active layer, doped with manganese ZnSMn is sandwiched between the two dielectric layers followed by conductive layers. All the layers are transparent except the back conductive layer. In the basic mode of operation, an alternating voltage is applied across any two crossing electrodes. When this voltage exceeds the threshold voltage, light is emitted from the active layer. EL mechanism the generation of electrons, acceleration of these electrons to optical energies, and collision excitation of the Mn ions yielding light emission occurs within the film or at the surface of the ZnSMn layer. A bright yellow light, in the visible region and with a relatively broad spectrum, is emitted. The TFEL display's thinness, compactness, low weight, moderately low power requirements and durability are its prime advantages. The characteristics of various thin films utilised in TFEL have been studied, and the data in this paper show the optimum requirements for luminance, efficiency and reliability of the light emission in ACTFEL.

Journal

Microelectronics InternationalEmerald Publishing

Published: Jan 1, 1992

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