| 摘要 |
PROBLEM TO BE SOLVED: To provide a data driver including a decoder which suppresses the number of elements, the number of wire connection between Pch and Nch, and the area.SOLUTION: The decoder includes a first subdecoder (SD) that receives a first level voltage group, outputs a voltage selected according to lower L bits of N bit data; a second SD that receives a second-level voltage group, and outputs a voltage selected according to the lower L bits; a third SD that selects one of the voltages selected by the first and second subdecoders according to upper M bits; a fourth SD, that outputs the voltage selected from the third-level voltage group according to lower P bits; a fifth SD that selects one of the voltages output from the fourth subdecoder according to upper Q bits; and a sixth SD, that controls conduction or nonconduction between the output of the first SD and the output of the fourth SD based on K bits. The first, second and third SDs comprise switches of first polarity, and the fourth, fifth and sixth SD2 comprise switches of second polarity. |
