Display apparatus with shell-structured vacuum seal

A display apparatus comprising:

• an anode substrate;
• a cathode substrate which is placed opposite the anode substrate end forms an electron emitting chamber vacuously sealed between the cathode substrate and the anode substrate;
• electron sources formed on an electron emitting chamber side of the cathode substrate;
• phosphors which are formed on an electron emitting chamber side of the anode substrate and receive electron beam from the electron sources to emit light;
• and
• a vacuum seal member which has a dome shaped shell structure extending to the side receiving the atmosphere pressure and is placed covering a back of the electron emitting chamber side of the cathode substrate, forms a pressure balancing chamber vacuously sealed independent of the electron emitting chamber between the vacuum seal member and the cathode substrate.