| 主权项 |
1. A display device, comprising:
a plurality of pixel circuits that are arranged in a matrix and supplied with power through a first power supply line and a second power supply line, the first power supply line being maintained at a first voltage, the second power supply line being maintained at a second voltage having a positive value less than the first voltage; a first power supply circuit of a synchronous rectification type that outputs the first voltage to the first power supply line by chopping an input voltage; and a second power supply circuit of the synchronous rectification type that outputs the second voltage to the second power supply line by chopping the first voltage, wherein the first power supply circuit includes: a first high-side switch and a first low-side switch connected in series between a grounding line and an input power supply line to which the input voltage is applied; a first inductor having one end connected to a connection point between the first high-side switch and the first low-side switch, and an other end connected to the first power supply line; and a first controller that controls turning ON and OFF of the first high-side switch and the first low-side switch, and the second power supply circuit includes: a second high-side switch and a second low-side switch connected in series between the first power supply line and the grounding line; a second inductor having one end connected to a connection point between the second high-side switch and the second low-side switch, and an other end connected to the second power supply line; and a second controller that controls turning ON and OFF of the second high-side switch and the second low-side switch. |
