Patent ID: 8581946

Claim:
A driving device that drives a plurality of light emitting elements that are connected in parallel to a common terminal, comprising: a scanning circuit, in which a plurality of 3-terminal switching elements are arranged, the plurality of 3-terminal switching elements each including a first terminal connected to a first power source, a second terminal connected to one of a first clock terminal and a second clock terminal, and a control terminal that is connected to the second clock terminal and that controls an ON/OFF state between the first and second terminals, wherein the scanning circuit outputs a signal, which flows to each of the control terminal, to the plurality of light emitting elements by ON/OFF switching of the 3-terminal switching elements based on a first clock signal supplied from the clock terminal, and the scanning circuit sequentially scans and drives the plurality of light emitting elements; a data driving circuit that drives a driving rectangular wave signal and that supplies a data signal to the common terminal; a clock driving circuit that drives a scanning rectangular wave signal and that generates the first clock signal and a second clock signal; a first differential circuit that includes the first clock terminal and that outputs the first clock signal; and a second differential circuit that includes the second clock terminal and that outputs the second clock signal, wherein a differential waveform is formed at an edge of the second clock signal by differentiating the second clock signal using an inductor, the clock driving circuit includes: a first conductive transistor that is connected between the first power source and an output terminal that outputs the second clock signal and that switches ON/OFF by the scanning rectangular wave signal, a second conductive transistor that is connected between the output terminal and the second power source and that is different from the first conductive transistor, the second conductive transistor being set to an OFF state by a potential of the second power source, and a diode provided between the output terminal and the second power source so as to prevent electric current flowing from the output terminal to the second power source, and the output terminal forms an open-drain output.