| 摘要 |
PURPOSE:To easily and promptly control a segment by executing a segment input in units of a polygon and a segment output in units of a scanning line by means of an address control and a memory. CONSTITUTION:A row write address counter 30 outputs and updates a write address, a column write address register 33 and an incrementor 35 output and update a column write address on the row, and successively write segment data in units of a polygon into a designated memory cell in a memory cell array 38. On the other hand, the row read address is outputted and updated by a row read address counter 41, and the segment data for one row are stored from the memory cell array 38 into a data register 42, the column address is outputted and updated by a column read address counter 40, and the segment data in units of a scanning line are successively outputted from the data register 42. Thus the segment can be easily and promptly controlled. |
