| 摘要 |
For saving power by recovery and reuse of charge on data lines of a matrix display panel, a data line drive device, has a simplified circuit configuration. The device comprises a matrix display panel having a plurality of data lines (DL); a data line drive circuit (1A) for driving said data lines (DL), including a plurality of switch units (QP1i, QN1i; i = 1 to N) interposed between a data voltage applying terminal (P12) and each of said data lines (DL); electrostatic charge storage means (C11, L11) for storing electrostatic charge on said data lines, which is connected to said data drive circuit (1A); and a switch (QS1i) for recovering the charge, having a parasitic diode (DS1i) which is interposed between said data line drive circuit (1A) and each of said data lines, said charge recovering switch (QS1i) being brought into a conductive state when the charge on the data lines is recovered to said charge storing means (C11, L11). <IMAGE> |
