| 摘要 |
A data signal line driving circuit is provided with a unit block which corresponds to each set of data signal lines corresponding to the data signal lines for two pixels adjacently provided in the direction of a scanning signal line. Each unit block is provided with a positive polarity system including a level shifter, a D/A converter and a voltage follower for the positive polarity, and a negative polarity system including a level shifter, a D/A converter and a voltage follower for the negative polarity. Further, the ranges of power voltages of the positive polarity voltage follower and the negative polarity voltage follower are respectively the high voltage side half and the low voltage side half of the range of a power voltage of a positive/negative polarity-compatible voltage follower. Further, each unit block is provided with a selector and a switch which distribute digital video signals to the two systems, and an analog switch which distributes respective output of the two voltage followers to the corresponding pixels, thereby providing a data signal line driving circuit capable of low power consumption while having the voltage followers.
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