Display devices and electronic devices having the same
US9558693B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2015 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Jul 21, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/028
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.