Methods for fabricating flat panel display systems and...

H - Electricity – 01 – J

Patent

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Details

H01J 9/12 (2006.01) G03F 7/26 (2006.01) H01J 9/02 (2006.01) H01J 31/12 (2006.01)

Patent

CA 2172803

A method is provided for fabricating a display cathode which includes forming a conductive line adjacent a face of a substrate. A region of amorphic diamond is formed adjacent a selected portion of the conductive line. The figure is an enlarged exploded cross-sectional view of a diode display unit (10) which includes two primary components: cathode plate (12) and anode plate (14). A vacuum is maintained between the plates by a seal (16). Regularly spaced pillars (26) separate cathode plate (12) and anode plate (14). A plurality of low effective work-function emitter areas (24) are formed by respective layers of amorphic diamond along conductive lines (20) disposed on substrate (18). A layer (34) of photo-emitting material is formed along transparent conductive lines (30) which are disposed upon substrate (28). Enlarge pads or leads (32) allow connection to an external signal source.

L'invention se rapporte à un procédé de fabrication d'une cathode d'affichage qui consiste à former une ligne conductrice adjacente à une face d'un substrat. Une région de diamant amorphe est formée à côté d'une partie sélectionnée de la ligne conductrice. La figure représente une coupe transversale éclatée agrandie d'une unité d'affichage à diodes (10) qui comprend deux composants primaires: une plaque cathodique (12) et une plaque anodique (14). Un vide est maintenu entre les plaques par un élément d'étanchéité (16). Des colonnes (26) espacées de manière régulière séparent la plaque cathodique (12) et la plaque anodique (14). Une pluralité de surfaces émissives (24) à faible travail de sortie effectif sont formées par des couches respectives de diamant amorphe le long des lignes conductrices (20) disposées sur un substrat (18). Une couche (34) de matière photo-émissive est formée le long des lignes conductrices (30) transparentes qui sont disposées sur un substrat (28). Des pastilles ou conducteurs (32) élargis permettent d'effectuer une connexion à une source de signaux externe.

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