| 摘要 |
PURPOSE: A digital-analog converting circuit, display device, and digital-analog converting method are provided to solve nonuniformity of a brightness and improve display quality. CONSTITUTION: The device includes a plurality of first capacitors(c1,c2) configured to accumulate electric charges in accordance with the value of the respective bits except for the most significant bit of the digital signal, a second capacitor(c3) capable of accumulating the electric charge in accordance with the first voltage, a third capacitor(c4) capable of accumulating the electric charge in accordance with the value of the most significant bit of the digital signal, switching circuits(SW2-1,SW3,SW2-2) connected on a current path between the second and third capacitors; and a charge control circuit(1) configured to accumulate the electric charges in accordance with the respective bits except for the most significant bit of the digital signal to the respective fist capacitors(c1,c2), and then transfer the electric charges accumulated to the respective first capacitors(c1,c2) into the second capacitor(c3), and accumulate the electric charge in accordance with the most significant bit of the digital signal to the third capacitor(c4), and then turn on the switching circuit in order to transfer the electric charge accumulated to the second capacitor(c3) into the third capacitor(c4).
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