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在Spindt结构仿真方法的基础上,将四针状纳米ZnO近似处理成尖锥结构,采用C语言程序编程,求解电位、电场分布、电子运动轨迹及发射电流密度。通过计算机模拟仿真,分析了栅极孔径、栅极电压以及阳极电压等对显示器性能的影响。在理论优化设计指导下,采用丝网印刷制作带孔的介质层,用电泳方法在阴极电极上沉积ZnO发射体,制成孔状金属栅三极结构显示屏。测试了显示器的电子发射调制性能,实验表明采用计算机仿真设计的三极结构ZnO场致发射显示器具有良好的场致发射性能。
On the basis of the Spindt structure simulation method, the four - needle ZnO nano - particles are processed into a cone structure and programmed in C language to solve the potential, electric field distribution, electron trajectory and emission current density. Through computer simulation, the influence of gate aperture, gate voltage and anode voltage on the display performance is analyzed. Under the guidance of theoretical optimization design, screen printing is used to fabricate a dielectric layer with holes. Electrophoretic method is used to deposit ZnO emitter on the cathode electrode to form a hole-shaped metal gate triode structure display screen. The electronic emission modulation performance of the display was tested. The experiment shows that the three-electrode ZnO field emission display designed by computer simulation has good field emission performance.