| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide various functions and advantageous information to a user also during display of a high-gradation image. <P>SOLUTION: When a plurality of image of different gradations are provided by a display screen preparation part 401, a display switching control part 403 sets the display gradation of an LCD (liquid crystal display) display part 202 to the gradation of the high-gradation image, plots a low-gradation picture in a virtual VRAM (video random access memory) 406 to convert it into the gradation of the high-gradation image, and thereafter combines the images to store them in a VRAM (video random access memory) 105. <P>COPYRIGHT: (C)2003,JPO |
