| 摘要 |
Image data is displayed on a screen of a liquid crystal panel on the basis of an interlaced image data, by a liquid crystal display driver. On the screen, identical images for two successive lines are displayed. The crystal display driver is provided with source line driving circuits for driving source lines of the liquid crystal panel. Each of the source line driving circuits includes an image data holding circuit, a mask data holding circuit to hold mask data containing replacement data for selectively replacing the image data. An image data masking circuit provides the replacement data and the image data read out from the image data holding circuit selectively. By the operation, a driving signal is provided to corresponding one of the source lines.
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