14.1: Electron Trajectory Analysis of Surface Conduction Electron Emitter Displays (SEDs)

Abstract

Electron trajectories in surface conduction electron emitter displays (SEDs) are analyzed based on the multiple scattering model. Besides calculating beam spot patterns on the phosphor by the ray tracing method, simple formulae for calculating beam spot size and electron emission efficiency are proposed. It is shown that these calculations reproduce experimental results. Using these simulation methods, we can easily estimate electron emission characteristics in the SEDs.

Design and Demonstration of Carbon Nanotubes(CNTs)-Based Field Emission Device

“…The result has been used to improve the electron transmission efficiency via adjusting the vertical distance between cathode and gate, at the same time, the elevation angle of CNT on the influence of transmission efficiency is also discussed. It is noted that the surface conduction electron emitter displays [1] (SCED) proposed by Canon Corporation has simplified production process of FED, and provided a feasible way for FED with large area. According to the technical information, the electron transmission efficiency(the ratio of electron to the anode and electron to the cathode) of this kind is no more than 1%, so we proposed two solutions to try to improve it [9] : First, using CNTs instead of P d O emitter, thus the electron transmission efficiency can be adjusted by controlling the direction of CNTs , theoretical calculations prove that when the angle between CNTs and gate plane reach 30°, almost all electrons can reach the anode and form the emission current; Meanwhile, giving the symmetrical axis of CNT parallel to the gate plane, we can also improve the electron transmission efficiency according to enlarging the relative height between gate and cathode(as shown in Fig.…”

“…At the same time, various low temperature chemical vapor deposition (CVD) techniques are being studied to achieve low threshold field emission of electrons at a high emission current density [22] [23] . Vertically aligned CNTs have been synthesized by plasma-enhanced CVD [1] . …”

Field Emission Flat Panel Displays

“…A very intriguing technology based on surface conduction electron emitters has entered the field in recent years [13,14]. The basic phenomenon was described in 1965, but had not been identified FIGURE 7.5.…”

Dynamics of electrons in a half-space with cylindrical electro-static field

“…This article gives an investigation of electrons' motion in a half space with cylindrical electro-static field. This electric system is related to the surface conduction electron emitter display (SED), which is a novel flat panel cathode-luminescent display [1,7,8,9,10]. The SED is composed of two parallel plates, one with the same number of the surface conduction electron emitters (SCEs) as the pixels of the display and another with phosphors.…”