IMAGE DISPLAY DEVICE

PROBLEM TO BE SOLVED: To rotatably display an image in a short time by successively writing image data in a pixel block rotating part by dividing the image data stored in an image memory into pixel blocks of the prescribed size, successively reading out it, and writing it in a prescribed address of the image memory. SOLUTION: A pixel block on an image storage area A103 is composed of 8-byte pixel data. Image data is written one byte by one byte in a pixel block rotating part 101, and when the image data of a single pixel block is completely written, a system control part reads out the image data from the pixel block rotating part 101, and writes it in a prescribed address of an images storage area B104. That is, the image data written in the prescribed address of the images storage area B104, becomes an image rotated by 90 degrees in the clockwise direction. An address generator 106 reads out data stored in the image storage area B104, and is transferred to an image display part 107, and is displayed on an LCD panel 108. Therefore, a rotary image can be displayed in a short time.