| 摘要 |
Power saving is more realized when a partial display is executed in active matrix type EL display elements.When the partial display is executed, a scan driver 2 repeatedly scans all the scan lines as executed ordinarily. In contrast, when a scan shifts from a display region to a non-display region, black display data is captured by a shift resister 1a in a data driver 1 for one horizontal period and latched by a latch circuit 1b. Then, while the non-display region is being scanned, the drive of the data driver 1 is stopped. Accordingly, in the scan of the non-display region, a non-display state is achieved by the black display data latched by the latch circuit 1b. Low power consumption can be realized because the drive of the data driver 1 operating at a high speed is stopped while the non-display region is being scanned.
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