Image forming apparatus and light emitter substrate

An image forming apparatus comprising:

• a first substrate which has plural electron-emitting devices;
• and
• a second substrate which is arranged oppositely to the first substrate, and has plural light emission members for emitting light in response to irradiation of electrons and black members for mutually separating the plural light emission members from others,
• wherein the plural light emission members are arranged so that the adjacent light emission members emit light of mutually different colors,
• a convex member, which projects from the surface of the light emission member, is provided within the area of each light emission member,
• wherein a rib is formed on the black member, and
• wherein the height of the convex member from the second substrate is the same as the height of the rib from the second substrate.

A light emitter substrate which comprises a substrate, plural light emission members, provided on the substrate, for emitting light in response to irradiation of electrons, and black members for mutually separating the plural light emission members from others, wherein

• the plural light emission members are arranged so that the adjacent light emission members emit light of mutually different colors, and
• a convex member, which projects from the surface of the light emission member, is provided within the area of each light emission member,
• wherein a rib is formed on the black member, and
• wherein the width of the convex member is narrower than the width of the rib.

A light emitter substrate which comprises a first substrate, plural light emission members, provided on the first substrate, for emitting light in response to irradiation of electrons, and black members for mutually separating the plural light emission members from others, wherein

• the plural light emission members are arranged so that the adjacent light emission members emit light of mutually different colors, and
• a convex member, which projects from the surface of at least one light emission member, is provided within the area of each light emission member,
• wherein a rib is formed on at least one black member, and
• wherein the height of the convex member from a second substrate, which is arranged oppositely to the first substrate, is the same as the height of the rib from the second substrate.