A method is provided for manufacturing an image display apparatus having a hermetic container including, as constructive members, a first substrate and a second substrate opposite to each other, and an external frame disposed between the first substrate and the second substrate, and an image display disposed within the hermetic container. The method includes a step of disposing a conductive bonding member between the first substrate and the external frame, and a step of sealing the first substrate and the external frame by heating the conductive bonding member. The second substrate has an electrode located outside of the hermetic container, and the sealing step includes a step of extending the conductive bonding member softened by heating from a sealing area between the first substrate and the external frame to the electrode to be in contact with the electrode.