Picture image display device

摘要

The present invention relates to a picture image display device constituted a control electrode for taking out an electron beam from a flat electron source and a display plate for emitting light in accordance with the impinging of the electron beam. The picture image display device has a control for deflecting the electron beam before it reaches the display plate, a plural number of slits are provided in an insulating substrate, on the wall surfaces of which slits are electron beam controlling electrodes.