| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that trouble occurs when drawing data of a graphics processor are displayed on a display differing in vertical synchronization frequency. SOLUTION: A drawing processing unit 32 of the graphics processor 30 switches frame buffers 44 of multi-buffer constitution one after another to select a frame buffer 33 as a writing destination of drawing data, and writes the drawing data. A display controller 50 switches a plurality of frame buffers 33 one after another to select a frame buffer 44 as a readout destination of the drawing data, and supplies drawing data read out by scanning the inside of the frame buffer to the display. A switching signal generator 36 generates a buffer switching signal for designating switching timing of the frame buffer 33 as the readout destination to the display controller 50 with a frequency different from the vertical synchronization frequency of the display 60. COPYRIGHT: (C)2008,JPO&INPIT
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