| 摘要 |
<p>PURPOSE:To stabilize the trajectory of an electron beam so as to make actually possible to display images with high quality by installing an electric voltage regulating means close to an electron discharging device. CONSTITUTION:An electric voltage regulating means 9 to regulate the surface voltage of an insulating substrate 1 is formed close to an electron discharging part 5 having an anode 3 and a cathode 4 formed on the insulating substrate 1 with thin films. A constant voltage is thus applied on the electron discharging part 5, so that an electron beam may fly on a stable trajectory without affected by the fluctuations of the surface voltage, etc. Consequently, unstability of the trajectory of an electron beam is resolved and high quality image display is attained.</p> |
