Substrate for forming an electron source, electron source, and image display device

A precursor to an electron source, said electron source for being coupled to an image display member to form an image display apparatus, the image display member for displaying an image in response to being irradiated by electrons, said precursor comprising:

• a substrate;
• and
• a sodium blocking film provided on a surface of said substrate at a region where electron emitting devices are to be disposed on said precursor to form said electron source, but not on a region of that surface which is to be coupled to the image display member.

A precursor to an electron source, said electron source for being coupled to an image display member to form an image display apparatus, the image display member for displaying an image in response to being irradiated by electrons, said precursor comprising:

• a substrate;
• and
• an insulating film containing a metal oxide provided on a surface of said substrate at a region where electron emitting devices are to be disposed on said precursor to form said electron source, but not on a region of that surface which is to be coupled to the image display member.

A precursor to an electron source, said electron source for being coupled to an image display member to form an image display apparatus, the image display member for displaying an image in response to being irradiated by electrons, said precursor comprising:

• a substrate;
• and
• a SiO2 film containing a metal oxide provided on a surface of said substrate at a region where electron emitting devices are to be disposed on said precursor to form said electron source, but not on a region of that surface which is to be coupled to the image display member.

A precursor to an electron source, said precursor comprising:

• a substrate;
• and
• an antistatic film provided on a surface of said substrate at a region where electron emitting devices are to be disposed on said precursor, but not on a region of that surface where a getter film is to be disposed to form said electron source.

A precursor to an electron source, said precursor comprising:

• a substrate;
• and
• a sodium blocking film provided on a surface of said substrate at a region where electron emitting devices are to be disposed on said precursor, but not on a region of that surface where a getter film is to be disposed to form said electron source.

A precursor to an electron source, said precursor comprising:

• a substrate;
• and
• an insulating film containing a metal oxide provided on a surface of said substrate at a region where electron emitting devices are to be disposed on said precursor, but not on a region of that surface where a getter film is to be disposed to form said electron source.

A precursor to an electron source, said precursor comprising:

• a substrate;
• and
• a SiO2 film containing a metal oxide provided on a surface of said substrate at a region where electron emitting devices are to be disposed on said precursor, but not on a region of that surface where a getter film is to be disposed to form said electron source.

A precursor to an electron source, said electron source for being coupled to an image display member to form an image display apparatus, the image display member for displaying an image in response to being irradiated by electrons, said precursor comprising:

• a substrate;
• and
• an antistatic film provided on a surface of said substrate at a region where electron emitting devices are to be disposed on said precursor, but not on a region of that surface which is to be coupled to the image display member and a region of that surface where a getter film is to be disposed to form said electron source.

A precursor to an electron source, said electron source for being coupled to an image display member to form an image display apparatus, the image display member for displaying an image in response to being irradiated by electrons, said precursor comprising:

• a substrate;
• and
• a sodium blocking film provided on a surface of said substrate at a region where electron emitting devices are to be disposed on said precursor, but not on a region of that surface which is to be coupled to the image display member and a region of that surface where a getter film is to be disposed to form said electron source.

A precursor to an electron source, said electron source for being coupled to an image display member to form an image display apparatus, the image display member for displaying an image in response to being irradiated by electrons, said precursor comprising:

• a substrate;
• and
• an insulating film containing a metal oxide provided on a surface of said substrate at a region where electron emitting devices are to be disposed on said precursor, but not on a region of that surface which is to be coupled to the image display member and a region of that surface where a getter film is to be disposed to form said electron source.

A precursor to an electron source, said electron source for being coupled to an image display member to form an image display apparatus, the image display member for displaying an image in response to being irradiated by electrons, said precursor comprising:

• a substrate;
• and
• a SiO2 film containing a metal oxide provided on a surface of said substrate at a region where electron emitting devices are to be disposed on said precursor to form said electron source, but not on a region of that surface which is to be coupled to the image display member and a region of that surface where a getter film is to be disposed to form said electron source.