中文摘要：

前栅极碳纳米管场发射显示板是一种常用的场致发射器件。该器件通过栅极与阴极之间形成的电场产生场致发射电子，在阳极高压的作用下，电子从电场中获得能量，轰击荧光粉产生可见光。本文采用模拟计算的方法研究了标准结构场发射区域内的电场分布、阴极表面的发射情况、电子轨迹和着屏束斑。并研究了关键结构参数在公差范围内变化对阴极发射特性和阳极着屏束斑的影响。计算结果显示，阴极发射状况和阳极束斑对结构参数的变化非常敏感，也证明了前栅极结构对工艺要求十分严格。

英文摘要：

The major variables, including the field distributions, field emission of the cathodes, electron trajectories and spots on the anode in the typical structure of the normal-gate carbon nanotube field emission display panel （CNT FED） ,were simulated. The impacts of the key factors, including the gate voltage, dielectric layer thickness, and structural variations within the tolerance, on the field emission characteristics and on the anode spot geometry were studied. The simulated results show that the structural configurations, such as the dielectric layer thickness, the gate opening and gatealignment errors, strongly affect the field emission characteristics and the spot geometry on the anode.