In the laser scanning display technology,the displayed images based on Lissajous graphic have an irregular scan path.In order to correctly display the input common progressive raster image by Lissajous scanning,it needs image conversion.According to a certain method for calculating the pixel coordinates and pixel timing,the relationship of timing and coordinates between the current display pixel and the next pixel can be calculated out.Then,the corresponding coordinate pixel value can be extracted from the input image to complete an image of Lissajous scan display.Simulation was made to images of 880*660@25Hz by using Matlab,and the pixel coordinates and timing data of Lissajous scanning display were obtained.Statistics was made to the distribution of those data.The simulation results show that the algorithm can convert the input image to Lissajous scanning effectively.