| 摘要 |
PROBLEM TO BE SOLVED: To provide a driving circuit for a display device, capable of improving degradation in picture quality due to fluctuation of an offset voltage of a DAC (digital-to-analog converter), an AMP (amplifier) or the like in a time-division driving system, and achieving high picture quality. SOLUTION: The driving circuit for a display device includes a changeover switching circuit A209 for selecting one of a plurality of DACs in a DAC circuit regarding the input port of grayscale digital data on the basis of a changeover control signal for performing switching to distribute the offset voltage difference of a grayscale voltage, and a changeover switching circuit B214 for selecting one of the grayscale voltage outputs from a plurality of AMPs in an AMP circuit on the basis of a changeover control signal for performing switching to distribute the offset voltage difference of the grayscale voltage. By performing switching of the DAC and the AMP for one signal line to be used for converting digital data to analog grayscale voltages, variation of the offset voltage in the DAC and the AMP are distributed within the plane. COPYRIGHT: (C)2008,JPO&INPIT
|
