| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a driving device of liquid crystal display panel capable of reducing electricity consumption at the time of polarity inversion while restraining an increase in cost. <P>SOLUTION: In a buffer circuit of a source driver, a first switch 262 and a second switch 264 are switched so that an output buffer 251 is supplied with: a first voltage V<SB POS="POST">DDA</SB>for a high-voltage supply side and a second voltage V<SB POS="POST">DDA/2</SB>for a low-voltage supply side when driven in a positive polarity; and the second voltage V<SB POS="POST">DDA</SB>for the high-voltage supply side and a third voltage V<SB POS="POST">SS</SB>for the low-voltage supply side when driven in a negative polarity. <P>COPYRIGHT: (C)2012,JPO&INPIT |
