Patent ID: 8257541

Claim:
A method of manufacturing an image displaying apparatus comprising hermetically sealed first and second substrates, the first substrate being a square shape on which one of an electron-emitting device and a phosphor film is placed and the second substrate being a square shape on which the other of the electron-emitting device and the phosphor film is placed, the method comprising the steps of: (A) aligning, within a chamber, the first and second substrates opposite to each other, by locating the first substrate above a supporting frame provided at a periphery of the second substrate, the supporting frame having a joining member at a top thereof and the second substrate having a plurality of spacers inside the supporting frame; (B) lifting four corners at a periphery of the first substrate away from the supporting frame of the second substrate by arms which engage with the four corners so that the first substrate warps due to its own weight and is convex with respect to the second substrate; (C) while sustaining the lifting of the four corners by the arms, exhausting the inside of the chamber after the first substrate is formed into the convex shape, until a degree of vacuum for a gap space between the first and second substrates becomes 1×10 −6 [Torr] or less; and (D) after the exhausting step [C], lowering the arms downwardly so that the four corners of the first substrate are mounted on the supporting frame and the warping of the first substrate is released, and then hermetically sealing peripheries of the unwarped first substrate and the second substrate with the joining member to form the hermetically sealed first and second substrates, within the chamber.