Image display apparatus and production method thereof
AssigneeCanon Kabushiki Kaisha
InventorsMasaki Tokioka, Hiroharu Ueda, Mitsutoshi Hasegawa, Tokutaka Miura
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Abstract
A joining material like an In film having a low melting point forms a surface oxide film when melted. If the oxide film is thick, an uneven surface shape will remain as it is, and can cause vacuum leakage during vacuum sealing. This problem is solved, for example, by placing particles of a refractory material inside the low melting joining material. The particles of the refractory material serve as a holding member for the low melting material and break the oxide film during a joining operation to bring the seal bonding with the low melting material to perfection.
Claims17
An image display apparatus comprising an envelope having a first substrate, and a second substrate opposed with a gap to said first substrate;
- and image display means placed in said envelope, wherein in a peripheral region of said first substrate or said second substrate, said first substrate and said second substrate are seal-bonded with a joining member of a metal having inside thereof a member of a material which has a melting point higher than that of the joining member.
An image display apparatus comprising an envelope having a first substrate, and a second substrate opposed with a gap to said first substrate;
- and image display means placed in said envelope, wherein in a peripheral region of said first substrate or said second substrate, said first substrate and said second substrate are seal-bonded with a joining member of a metal held by a holding member.
An image display apparatus comprising an envelope in which a first substrate with an electron-emitting device therein and a second substrate with an image display member are seal-bonded through a joining member with a predetermined gap between,
- wherein a holding member for holding the joining member is provided inside said joining member and said holding member has a melting point higher than a softening temperature of the joining member and has high wettability to the joining member.
A method of producing an image display apparatus comprising an envelope having a first substrate, and a second substrate opposed with a gap to said first substrate;
- and image display means placed in said envelope, said method comprising a step of seal-bonding said first substrate and said second substrate with a joining member of a metal having inside thereof a member of a material which has a melting point higher than that of the joining member metal, in a peripheral region of the first substrate or the second substrate.
A method of producing an image display apparatus comprising an envelope having a first substrate, and a second substrate opposed with a gap to said first substrate;
- and image display means placed in said envelope, said method comprising a step of seal-bonding said first substrate and said second substrate with a joining member of a metal held by a holding member, in a peripheral region of the first substrate or the second substrate.
Dependencies are inferred from the claim text.