A method for determining a row inversion drive mode and charge sharing time settings, applied to an electronic apparatus provided with or externally connected with a liquid crystal display device, comprising: - obtaining a first correspondence relationship between each one of a plurality of row inversion drive modes and three consecutive values taken by a polarity control signal when the first three rows of the liquid crystal display panel in each one of the plurality of row inversion drive modes are driven, - creating a truth table from the first correspondence relationship, said truth table establishing a correspondence relationship between each one of the plurality of row inversion drive modes and a pair of values taken by two driving signals in each one of the plurality of row inversion drive modes, wherein the pair of values of the two driving signals are obtained by performing first and second logical operations with first and second logical equations on the three consecutive values taken by the polarity control signal in the first three rows of the liquid crystal display panel in each one of the plurality of row inversion drive modes, wherein the plurality of row inversion drive modes include a 1-line drive mode, wherein one row of the liquid crystal display panel is driven at a time, a 2-line drive mode, wherein two adjacent rows of the liquid crystal display panel are driven concurrently, and a 1+2 line drive mode, wherein the first row of the liquid crystal display panel is driven alone and subsequently adjacent two rows of the liquid crystal display panel are driven concurrently, - receiving a polarity control signal which is a row inversion signal, said polarity control signal taking three consecutive values when the first three rows of the liquid crystal display panel are driven, - determining a current pair of values of the two driving signals by performing logical operations under the first logic equation and second logic equation on said three consecutive values of the received polarity control signal, respectively, - determining a current row inversion drive mode from the current pair of values of two driving signals and the truth table; and - selecting current charge sharing time settings based on the determined current row inversion drive mode. - obtaining a first correspondence relationship between each one of a plurality of row inversion drive modes and three consecutive values taken by a polarity control signal when the first three rows of the liquid crystal display panel in each one of the plurality of row inversion drive modes are driven, - creating a truth table from the first correspondence relationship, said truth table establishing a correspondence relationship between each one of the plurality of row inversion drive modes and a pair of values taken by two driving signals in each one of the plurality of row inversion drive modes, wherein the pair of values of the two driving signals are obtained by performing first and second logical operations with first and second logical equations on the three consecutive values taken by the polarity control signal in the first three rows of the liquid crystal display panel in each one of the plurality of row inversion drive modes, wherein the plurality of row inversion drive modes include a 1-line drive mode, wherein one row of the liquid crystal display panel is driven at a time, a 2-line drive mode, wherein two adjacent rows of the liquid crystal display panel are driven concurrently, and a 1+2 line drive mode, wherein the first row of the liquid crystal display panel is driven alone and subsequently adjacent two rows of the liquid crystal display panel are driven concurrently, - receiving a polarity control signal which is a row inversion signal, said polarity control signal taking three consecutive values when the first three rows of the liquid crystal display panel are driven, - determining a current pair of values of the two driving signals by performing logical operations under the first logic equation and second logic equation on said three consecutive values of the received polarity control signal, respectively, - determining a current row inversion drive mode from the current pair of values of two driving signals and the truth table; and - selecting current charge sharing time settings based on the determined current row inversion drive mode.