Patent ID: 7675499

Claim:
A display device comprising: a data line corresponding to each column of pixels arranged in a matrix, wherein a data signal for each pixel is supplied to the pixel through the data line, and an amplifier circuit comprising a buffer amplifier which receives an input signal on a positive input terminal, has an output terminal connected to a negative input terminal, and outputs a stabilized output signal; and a switch which switches between states of short-circuit and non-short-circuit between the positive input terminal and the output terminal of the buffer amplifier, wherein the ratio of load capacitance/input capacitance between a load capacitor at the output from the buffer amplifier and an input section capacitor on the input of the buffer amplifier is 1 or less, wherein the amplifier circuit supplies the data signal to the data line after stabilizing the data signal, the input signal is an analog output obtained by charging a plurality of capacitors in accordance with a value of each bit of a digital signal and averaging charged voltages of the plurality of capacitors, wherein each of the plurality of capacitors has a capacitance weighted corresponding to each bit of the digital signal of a plurality of bits, the output signal is supplied to a data line having a predetermined capacitance, an average of charged voltages of the plurality of capacitors is obtained by connecting one terminal of each of the plurality of capacitors in parallel using a connection switch, and the switch is switched ON after a predetermined time has elapsed after the connection switch is switched ON.