To improve luminescence life, linearity of emission luminescence, and colority of an electron beam excitation display of thin flat type. The electron beam excitation display of thin flat type has a rear plate provided with a plurality of first electrodes in parallel with one another, a plurality of second electrodes in parallel with one another and orthogonal to the first electrodes, and electron emitters placed at points of intersection or near the points of intersection of the first electrodes and the second electrodes and a faceplate formed with a phosphor layer. By using a blue-emitting phosphor formed by mixing a blue-emitting phosphor ZnS:Ag and a blue-emitting phosphor CaMgSi2O6:Eu for the phosphor layer, the electron beam excitation display of thin flat type improved in luminescence life, linearity of emission luminescence, and colority that have been left unsolved is provided.