EP 0354750 B1 19940720 - Image display apparatus and method of fabrication thereof.
Title (en)
Image display apparatus and method of fabrication thereof.
Title (de)
Bildanzeigegerät und Verfahren zur Herstellung desselben.
Title (fr)
Appareil de visualisation d'image of procédé de fabrication dudit appareil.
Publication
Application
Priority
JP 19741188 A 19880808
Abstract (en)
[origin: EP0354750A2] An image display apparatus comprising an insulating substrate (1) having electron sources (13) controlled by X-Y matrix electrodes (10, 11) and a face plate (4) coated with a phosphor material in opposed relationship with the substrate is disclosed. An electron source at each intersection of the X-Y matrix control electrondes is made up of a plurality of cold cathodes (2) connected to an X-control electrode (10) and a plurality of gate electrodes (3) connected to a Y-control electrode (11) opposed to the cold cathodes in the same plane, and the electron source is formed on the substrate surface on other than the X- and Y-control electrodes. A voltage applied between the cold cathodes and gate electrodes arranged in opposed relations on the same surface causes a high electric field of about 10<7> V/cm at the forward end of the cold cathodes leading to an electron emission. A part of electrons thus emitted enters the anodes directly. Another part of electrons flow into the opposed gate electrodes to generate secondary electrons in the surface of the gate electrodes. The secondary electrons thus generated are accelerated by the positive voltage (anode voltage) applied to the phosphor surface of the opposed face plate and bombarded on the phosphor material, which is thus illuminated.
IPC 1-7
IPC 8 full level
H01J 1/304 (2006.01); H01J 31/12 (2006.01)
CPC (source: EP)
H01J 1/3042 (2013.01); H01J 31/127 (2013.01)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0354750 A2 19900214; EP 0354750 A3 19901017; EP 0354750 B1 19940720; CA 1323901 C 19931102; DE 68916875 D1 19940825; DE 68916875 T2 19950112; JP 2623738 B2 19970625; JP H0246636 A 19900216
DOCDB simple family (application)
EP 89308020 A 19890807; CA 607771 A 19890808; DE 68916875 T 19890807; JP 19741188 A 19880808