Patent ID: 8441595

Claim:
A light emitting device comprising: a vacuum vessel, comprising: a first substrate; a second substrates facing the first substrate; and a sealing member disposed between the first substrate and the second substrate; a recess portion formed along one direction on a surface of the first substrate facing the second substrate; a cathode electrode formed in the recess portion and extending along the one direction; an electron emission region formed on the cathode electrode within the recess portion; a gate electrode comprising a metal plate and fixed to the surface of the first substrate along a direction crossing the cathode electrode at an inner side of the sealing member; and a gate terminal portion formed on the surface of the first substrate on the inner side and an outer side of the sealing member, traversing under the sealing member, and electrically connected with the gate electrode, the gate terminal portion comprising a conductive film having a thickness smaller than a thickness of the gate electrode.