| 摘要 |
PROBLEM TO BE SOLVED: To easily conduct a special displaying in which a displaying is conducted in an arbitrary region of a screen without requiring a complex control. SOLUTION: A signal driver 10 transfers sampling start signals SSRT from a control circuit 4a by a shift register 4c. In accordance with the above, luminance signals of RGB colors supplied from an inversion amplifier are held by a sample-and-hold circuit 4e and outputted through an output buffer block 4f. The circuit 4a sets the bits of a memory register block 10a corresponding to the region to be displayed to 'High' in accordance with memory signals MEMORY 1 from a controller. In a shift register block 4d, only the bits (signal lines) corresponding to the memory cells that are set to 'High' of the block 10a are made effective.
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