Patent ID: 6320310
Filing Date: 2001-11-20
Classification: H01J

Abstract:
An image display apparatus comprising: a fluorescent layer formed on an inner surface of a vacuum container whose interior is kept under vacuum, an electron emission source comprising an insulating substrate provided with electron sources arranged thereon, and a supporting member sandwiched between the fluorescent layer and the electron emission source, and a displacement preventing system to prevent displacement of electron beams emitted from the electron sources caused by the charging of the supporting member,wherein the displacement preventing system comprises a conductive portion provided at a part of the supporting member near the fluorescent layer, the conductive portion being in contact with the fluorescent layer; andwherein the supporting member has an electrode portion at a position between the electron emission source and the conductive portion, the electrode portion being in contact with the conductive portion, and has an insulating portion between the electron emission source and the electrode portion.