| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce power consumption without reducing a drive frequency, that is, without lowering picture quality due to a flicker of a picture by providing a charge collecting/regenerating means collecting/regenerating charges on a prescribed wiring group formed on a display panel. SOLUTION: The charge collecting/regenerating means 11 collecting/ regenerating the charges on data buses 5-1 to 5-4 is provided. In this device, when the drive of the data buses 5-1 to 5-4 is moved from positive drive to negative drive, a charge discharge control signal S1 is made an L level, and connection switch elements 15-1 to 15-4 are turned off, and the charge discharge control signal S2 is made an H level, and thin film transistors 18-1 to 18-4 are turned on. Thus, the charges charged on the data buses 5-1 to 5-4 are supplied to a DC-DC converter 19 through the thin film transistors 18-1 to 18-4, etc., and the charges on the data buses 5-1 to 5-4 are discharged, and the output charges of the DC-DC converter 19 are supplied to a battery 12.</p> |
