Structure of light-emitting device with raised black matrix for use in optical devices such as flat-panel cathode-ray tubes

A light-emitting structure comprising:

• a main section;
• a pattern of ridges situated over the main section, each ridge comprising (a) a dark region that encompasses substantially the entire width of that ridge and at least part of its height and (b) an additional region of different chemical composition than the dark region, each ridge having a remote surface situated farthest from the main section, the remote surfaces of the ridges being largely uncovered or being covered with a largely uncovered, substantially non-perforated layer;
• and
• a plurality of light-emissive regions situated over the main section in spaces between the ridges, light being produced by the light-emissive regions upon being struck by electrons, the ridges being substantially non-emissive of light relative to the light-emissive regions when the ridges are struck by electrons, the ridges extending further away from the main section than the light-emissive regions.