Patent ID: 7336286

Claim:
An image processing apparatus, comprising: an image memory including a first memory area to store a first image data group of a first image for a background and a second memory area for storing a second image data group of a second image for an on-screen display; a display buffer memory for storing the first image and the second image read from said image memory, in a format to be displayed on a display screen; and a control section for controlling accesses in said image memory and said display buffer memory, for reading the first image data group from the first memory area and writing the first image data group in said display buffer memory without intervening with any other memory area or buffer memory, and for reading the second image data group from the second memory area and writing the second image data group in a specified area of said display buffer memory, wherein said control section includes a data expansion control section capable of selectively increasing a data amount of only the second image data group read from said image memory, according to the second image data group, and of outputting the data amount to the display buffer memory.