In laser scanning display systems (LSDs),the Micro-Opto-Electro-Mechanical System (MOEMS) has mainly two patterns for laser beam spatial modulation,Lissajous and Linescan.In order to analyze the characteristics of each model,and the advantages and disadvantages of different patterns,we made comparative study on two indicators of display resolution and track uniformity.According to the least pixel division method simulated,the minimum MOEMS fast axis frequency requirements of Lissajous pattern is about 57% higher than that of Linescan pattern.Simulation was made to the same picture under different pattern based on Matlab.The result indicates that the Lissajous scanning track presents an uneven characteristic of dense upper and lower edges and sparse center,whereas the Linescan scanning track presents a trumpet-shaped uneven characteristic.