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Field emission display with ZnO-nanostructures

Authors Qiu-Hong Hu
Lachezar Komitov
ISBN 2008-150191 2079095
Publisher (Lightlab Sweden AB, Swed.).
Place of publication Application: EP EP
Publication year 2009
Published at Department of Physics (GU)
Language en
Keywords Field emission displays (field emission display with ZnO-nanostructures), field emission display zinc oxide nanostructure
Subject categories Functional materials


The present invention relates to a method for the manufg. of a field-emission display, comprising the steps of arranging an electron-emission receptor in an evacuated chamber, arranging a wavelength converting material in the vicinity of the electron-emission receptor, and arranging an electron-emission source in the evacuated chamber, the electron-emission source adapted to emit electrons towards the electron-emission receptor, wherein the electron-emission source is formed by providing a substrate, forming a plurality of ZnO-nanostructures on the substrate, wherein the ZnO-nanostructures each have a first end and a second end, and the first end is connected to the substrate, arranging an elec. insulation to elec. insulate the ZnO-nanostructures from each other, connecting an elec. conductive member to the second end of a selection of the ZnO-nanostructures, arranging a support structure onto of the elec. conductive member, and removing the substrate, thereby exposing the first end of the ZnO-nanostructures. Advantages with the invention include for example increased lifetime of the field-emission display as there will be a smaller sections of the nanostructures that will be non-height-aligned. Furthermore, by not having to height align the nanostructures using an expensive etching, grinding, or similar method step, it is possible to achieve a less expensive end product. The present invention also relates to a corresponding field-emission display.

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