Abstract: The method of the present invention includes the first step of applying power to a character and/or image display apparatus and setting up input/output port values and initialization values, the second step of initializing all LED values and clearing a screen, the third step of reading initial picture data from a nonvolatile backup memory, the fourth step of writing the data read from the backup memory into a working memory, the fifth step of reading initialization data from the working memory, the sixth step of displaying an initial picture and performing a still mode until a rotation speed of a motor becomes stable, the seventh step of reading data other than the initialization data from the working memory, the eighth step of sequentially performing modes corresponding to commands contained in the read data, and the ninth step of repeating the above seventh and eighth steps until all commands stored in the working memory are processed.