Abstract: A digital-to-analog conversion device includes a Gray code conversion circuit receiving a series of digital data pieces including binary codes, and generating Gray code data pieces obtained by respectively converting the digital data pieces into Gray codes; a decoder receiving the Gray code data pieces and a plurality of reference voltages having different voltage values, selecting two reference voltages including an overlap from the plurality of reference voltages based on the Gray code data pieces, and outputting the two reference voltages as a first selection voltage and a second selection voltage, respectively; and an amplifier circuit including first and second input terminals that respectively receive the first selection voltage and the second selection voltage, and generating an output voltage by amplifying a voltage obtained by interpolating the first selection voltage and the second selection voltage by a weighting ratio assigned to the first and second input terminals.

Abstract: A display device has: a display panel; a source driver group including 2j source drivers that are arranged in the lengthwise direction of gate lines; and a display controller that is connected to the 2j source drivers via j data supply lines provided in common between adjacent pairs of source drivers. The display controller outputs j pixel data piece groups, into which m/2 pixel data pieces were divided, to the data supply lines. The (2k)th source driver receives m/(4j) pixel data pieces via a data supply line, and receives three pixel data pieces from the (2k+1)th source driver. The (2k)th source driver generates m/(2j) of gradation voltage signals on the basis of the pixel data pieces.

Abstract: A display device has: a display panel; a source driver group including 2j source drivers that are arranged in the lengthwise direction of gate lines; and a display controller that is connected to the 2j source drivers via j data supply lines provided in common between adjacent pairs of source drivers. The display controller outputs j pixel data piece groups, into which m/2 pixel data pieces were divided, to the data supply lines. The (2k)th source driver receives m/(4j) pixel data pieces via a data supply line, and receives three pixel data pieces from the (2k+1)th source driver. The (2k)th source driver generates m/(2j) of gradation voltage signals on the basis of the pixel data pieces.