Analysis of the transverse energy distribution of hopping electrons through a glass funnel

Hopping field emission display (HopFED) which is based on secondary electron emission is a novel structure of field emission display [1]. Compared to the conventional structures, this new type has several advantages. The brightness, the luminance uniformity and the profile of the spot on the screen have been improved. To simplify the fabrication process, the gate electrode is deposited on the bottom surface of the hop glass plate, as shown in Fig. 1. However, a few electrons may be collected by the gate electrode in this structure. anode catnoae Fig.l a normal triode structure of HopFED Fig.2 the equi-potential lines and electron trajectories of the normal triode structure of HopFEDThe characteristics of the spot are largely determined by the electrons which land on the anode. In order to let more electrons get through the hop and obtain a well spot on the anode, the structure in Fig. 1 is optimized (Fig.3) in this paper. The main difference between the two structures is shown in Fig.5. In the normal triode structure, the gate electrode is taken as a whole part (Fig.5a) while it was divided into two parts (Fig5b) in the optimized structure. A program which is based on the Monte-Carlo method is used to calculate the secondary electron emission in HopFED. anode cathode Fig.3 the optimized structure of HopFED Fig.4 the equi-potential lines and electron trajectories of optimized HopFED

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Simulation Secondary Electron Emission of a Hopped FED

Zhang

Lei

et al. 2006

2006 19th International Vacuum Nanoelectronics Conference

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Analysis of the transverse energy distribution of hopping electrons through a glass funnel

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Simulation Secondary Electron Emission of a Hopped FED

Simulation Secondary Electron Emission of a Hopped FED

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