Patent ID: 8493290
Filing Date: 2013-07-23
Classification: G09G

Abstract:
1. An integrated circuit device comprising: a segment driver having a plurality of segment signal output circuits for driving a plurality of segment lines; a common driver having a plurality of common signal output circuits for driving a plurality of common lines; and a power supply circuit that supplies a first power supply at a first voltage level, a second power supply at a second voltage level, a third power supply at a third voltage level and a fourth power supply at a fourth voltage level to the segment driver and the common driver, a segment signal output circuit of the plurality of segment signal output circuits setting a voltage level of a segment signal to the third voltage level in a first transition period from a period in which the voltage level of the segment signal is set to the first voltage level to a period in which the voltage level of the segment signal is set to the fourth voltage level, and setting the voltage level of the segment signal to the second voltage level in a second transition period from a period in which the voltage level of the segment signal is set to the fourth voltage level to a period in which the voltage level of the segment signal is set to the first voltage level, and a common signal output circuit of the plurality of common signal output circuits setting a voltage level of a common signal to the second voltage level in the first transition period, and setting the voltage level of the common signal to the third voltage level in the second transition period.