In the manufacturing process of color display tubes with a dotted screen pattern, to form the screen (11), a segmented lens (3) is used for exposing the display window (4) in order to apply a structure of a black matrix layer and a layer with electroluminescent material to it. Principally, a segmented...http://www.google.fr/patents/US6563645?utm_source=gb-gplus-shareBrevet US6563645 - Method of producing a segmented lens and a screen for a color display device
Method of producing a segmented lens and a screen for a color display device
