An electron emission display includes first and second substrates facing each other to form a vacuum envelope, a plurality of driving electrodes formed on the first substrate, a plurality of electron emission regions controlled by the driving electrodes, a focusing electrode disposed on and insulated...http://www.google.fr/patents/US7569986?utm_source=gb-gplus-shareBrevet US7569986 - Electron emission display having electron beams with reduced distortion
Electron emission display having electron beams with reduced distortion
