Display devices and electronic devices having the same

摘要

A display device includes a display panel driver and a DC-DC converter. The display panel driver divides one frame into a plurality of periods and outputs a control signal to generate an analog supply voltage, a first power voltage, and a second power voltage for driving pixels. The DC-DC converter receives the control signal from the display panel driver through a single wire. The DC-DC converter includes an analog supply voltage generator, a first power voltage generator, and a second power voltage generator. The analog supply voltage generator generates the analog supply voltage during a first pulse period. The first power voltage generator generates the first power voltage during a second pulse period. The second power voltage generator generates the second power voltage during the third pulse period.

主权项

1. A display device, comprising:
a display panel including a plurality of pixels to be driven based on a first power voltage and a second power voltage; a display panel driver to divide one frame into a first pulse period, a second pulse period, and a third pulse period, and to output a control signal to generate an analog supply voltage, the first power voltage, and the second power voltage, the display panel driver to be driven based on the analog supply voltage; and a DC-DC converter electrically coupled to the display panel driver, the DC-DC converter to receive the control signal from the display panel driver through a single wire, wherein the DC-DC converter includes: an analog supply voltage generator to generate the analog supply voltage during the first pulse period, a first power voltage generator to generate the first power voltage during the second pulse period, and a second power voltage generator to generate the second power voltage during the third pulse period.