| 摘要 |
PROBLEM TO BE SOLVED: To reduce a circuit scale of an arithmetic processing part of image data, and to provide a multi-screen display device having high image processing ability. SOLUTION: This multi-screen display device is provided with display parts 10a-10d composing the multi-screen, and an arithmetic processing part 6 for extracting an image part from image data to be displayed on the multi-screen and processing them by a prescribed coordinate transformation. And also it comprises display units 5a-5d for outputting a video signal to each display means, a CPU 1 for generating the display data to be displayed on the multi- screen, and a bus/DMA controller 2 for transferring the generated image data to all the display units, respective display units 5a-5d output arithmetic processing notifying signals 11a-11d for notifying the bus/DMA control means of the end of the arithmetic processing of the image data in the arithmetic processing part 6, and the bus/DMA control means monitors the arithmetic processing notifying signals 11a-11d and controls to start transferring the image data.
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