Flat image display

A flat-type image display apparatus comprising, in a case formed of a front case and a rear case that is sealed with its inside being in a vacuum condition:

• a flat-type screen to which phosphors have been applied;
• a plurality of stretched linear cathodes;
• an electrode unit including a plurality of sheet-like electrode plates;
• and
• a back electrode made of a conductive material;
• wherein a plurality of fixing stands are attached to an inner face of the rear case, a back electrode substrate that functions as the back electrode is attached onto the fixing stands, the electrode unit is mounted on an upper face of the back electrode substrate, and
• only one fixing stand positioned substantially at a center of the back electrode substrate in the plurality of fixing stands is fixed to the back electrode substrate, and presser bar plate springs are attached onto the fixing stands except the fixing stand positioned substantially at the center of the back electrode substrate to fix the back electrode substrate by elasticity of the presser bar plate springs.