| 摘要 |
A signal drive circuit capable of flexibly dealing with the change of the panel size and reducing power consumption, a display device and an electro-optical device using that signal drive circuit, and a signal drive method. A signal driver (signal drive circuit) includes: a shift register which sequentially shifts image data corresponding to signal lines in units of blocks each of which including a plurality of signal lines; a line latch which latches the image data in synchronization with a horizontal synchronization signal LP; a drive voltage generation circuit which generates a drive voltage based on the image data; and a signal line drive circuit, wherein high impedance control is performed for output to the signal lines, based on block output select data BLK designated in units of blocks; and wherein partial display control is performed based on the partial display data PART. Display control for the block output select data BLK in units of blocks is given priority in comparison with the partial display data PART.
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