Patent ID: 9041638
Filing Date: 2015-05-26
Classification: G09G

Abstract:
1. A liquid crystal driving circuit, comprising: a plurality of resistors connected in series between a first potential and a second potential lower than the first potential; one or more voltage follower circuits configured to impedance-convert one or more intermediate potentials between the first potential and the second potential, to be outputted, respectively, the one or more intermediate potentials generated at one or more connection points between the plurality of resistors, respectively; a common-signal output circuit configured to supply common signals to common electrodes of a liquid crystal panel, respectively, each of the common signals being at the first potential, the second potential, and the one or more intermediate potentials in a predetermined order, wherein the common-signal output circuit is configured to change the potentials of the common signals in a ramp form, at least in a case where the potentials of the common signals are changed with a maximum possible potential difference; and a segment-signal output circuit configured to supply segment signals to segment electrodes of the liquid crystal panel, respectively, each of the segment signals being at the first potential, the second potential, and the one or more intermediate potentials in accordance with the common signals, the segment-signal output circuit configured to change the potentials of the segment signals in a ramp form, at least in a case where the potentials of the segment signals are changed with a maximum possible potential difference.