| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid crystal control circuit which reduces an analog circuit. <P>SOLUTION: A pulse signal producing portion 21 produces a plurality of pulse signals having different duty ratios from each other in a second period which is obtained by frequency-dividing a first period, and corresponding to a first level and a second level. A first output portion 24 selects any one of the plurality of the pulse signals SIG_0-SIG_3, and outputs the selected first pulse signal to a common electrode of a liquid crystal display element for a first period. A second output portion 26 selects any one of the plurality of the pulse signals SIG_0-SIG_3 according to image data of an image frame, and outputs the selected second pulse signal to a segment electrode of the liquid crystal display element for the first period. <P>COPYRIGHT: (C)2013,JPO&INPIT |
