| 摘要 |
A method for generating display patterns using a display memory which stores one bit of data for each pixel of a display apparatus. The stored data represents an outline of a display pattern. The stored data is consecutively read to generate dot data corresponding to the pattern being displayed. Character data corresponding to a current display pixel is also read from a display memory. Then buffer data which relates to a current scan line and the scan line directly above are read from a line buffer. Dot data is generated by performing logical computations on the current pixel data and line buffer data relating to the scan line. The dot data is then written into the line buffer for display.
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