Flat display apparatus

Details Flat display apparatus Flat display apparatus

H - Electricity

01

J

H01J 31/12 (2006.01)

Patent

CA 2075698

A flat display apparatus is disclosed which includes a grid interposed between and spaced apart from control electrodes and an electron source. The grid which includes holes has a higher potential applied than the one applied to a cathode so as to enable electrons to pass through the holes. An additional grid may be interposed between and spaced apart from the grid and the control electrodes. Alternatively, a rear electrode is located between adjacent porous cover electrodes to connect them, and a second rear electrode is located near the rear electrode and has a lower potential applied than the one applied to the cover electrodes.

L'invention est un appareil d'affichage plat qui comprend une grille interposée entre des électrodes de commande et une source d'électrons et espacée de ces éléments. Cette grille, qui est perforée, est portée à un potentiel plus élevé que celui de la cathode pour permettre aux électrons de traverser ses perforations. Une grille additionnelle peut être interposée de façon espacée entre la première grille et les électrodes de commande. Dans une autre concrétisation de l'invention, une électrode arrière est montée entre des électrodes de recouvrement poreuses adjacentes pour les connecter et une seconde électrode arrière est montée au voisinage de la première, son potentiel étant moins élevé que celui des électrodes de recouvrement.

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