| 摘要 |
PURPOSE:To miniaturize a scale of the whole device and to reduce the cost by providing an image display memory which can store data of a plural piece portion of each different image, and a control means which can execute a simultaneous display to plural image display means by reading out simultaneously different image data in this memory. CONSTITUTION:By storing the data of a plural piece portion of each different image by utilizing a relation of a physical structure of an image display memory 12 and an address space, and reading out simultaneously different image data in this memory 12 under a control of a control means 19, a simultaneous display to plural image display means 17, 18 is executed. Accordingly, in spite of a fact that plural image display means 17, 18 exist, a hardware for forming the control means 19 is used for both purposes. In such a way, although the title device is a comparatively small scale and inexpensive, it can execute a simultaneous display of plural images being different from each other. |
