Patent ID: 8902211
Filing Date: 2014-12-02
Classification: G09G

Abstract:
1. A charge-sharing control method for use in a control device of a display panel, the control device comprising a first data line, a second data line, a first voltage driving unit, a second voltage driving unit, a first charge storage unit, a second charge storage unit, a first switch set, a second switch set and a third switch set, wherein a first positive driving voltage and a first negative driving voltage are respectively provided by the first voltage driving unit and the second voltage driving unit before a polarity inversion is performed, and a second positive driving voltage and a second negative driving voltage are respectively provided by the first voltage driving unit and the second voltage driving unit after the polarity inversion, wherein the charge-sharing control method comprises steps of: (A) turning on the first switch set, wherein after the first switch set is turned on, the first voltage driving unit provides the first positive driving voltage to the first data line and the second voltage driving unit provides the first negative driving voltage to the second data line; (B) turning on the second switch set, wherein after the second switch set is turned on, the first data line with the first positive driving voltage transmits positive charges to the first charge storage unit such that the first charge storage unit has a positive common voltage, and the second data line with the first negative driving voltage transmits negative charges to the second charge storage unit such that the second charge storage unit has a negative common voltage; (C) turning on the third switch set, so that the first data line and the second data line are electrically connected with a ground voltage; and (D) after the polarity inversion, charging the second data line when a comparison between a voltage of the second data line and the second positive driving voltage complies with a first comparison result, and discharging the first data line when the comparison between the voltage of the first data line and the second negative driving voltage complies with a second comparison result.