Display system

Abstract

Abstract PURPOSE: To increase the current density and eliminate the brightness unevenness, by providing deflecting electrodes facing each other and having linear hot cathodes between them to obtain band-shaped electron beams, effecting vertical scanning and applying picture signals to the electrode array coated with a fluorescent material. CONSTITUTION: A back-electrode 2 and a deflecting electrode structure consisting of insulator substrates 3 provided with deflecting electrodes 4a, 4b on both faces thereof are disposed on both side of linear hot cathodes 1, and further provided are an electron beam pulling out electrode 5 with perforations 6 therein and a glass plate 7 with a transparent electrode on which a fluorescent material 9 is coated. Then, vertical scanning is effected by driving a cathode driving circuit 12 and a deflecting electrode driving circuit 13 in accordance with the signals from a synchronizing signal generating circuit 11, and further, character signals are applied to the transparent electrode 8 via a character signal generating circuit 14. Thus, electron loss in the band of electron beams is eliminated and the structure of the system can be greatly simplified as compared with the matrix type system. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Masanori Watanabe
• 👤 Kinzo Nonomura
• 👤 Yoshinobu Takesako

Bibliographic Details