METHOD OF MANUFACTURING A CATHODE RAY TUBE FOR DISPLAYING COLOURED PICTURES AND CATHODE RAY MANUFACTURED ACCORDING TO SAID METHOD

摘要

A method of manufacturing a cathode ray tube for displaying coloured pictures and cathode ray tube manufactured according to said method. The triplets of phosphor lines of the display screen each correspond to a row of apertures in the colour selection electrode. The two outermost rows of apertures do not correspond to a triplet of phosphor lines. Both absent triplets are replaced, for example, by a light absorbing material.