Display panel and driving method thereof and display device
US10204556B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2016 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | Mar 29, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display panel includes: a display unit, including a pixel circuit; a first power transmission line and a second power transmission line; a DC-DC circuit, configured to provide a first supply voltage and a second supply voltage for the pixel circuit through the first power transmission line and the second power transmission line respectively; a control circuit, configured to control the DC-DC circuit to start to provide the second supply voltage after the DC-DC circuit starts to provide the first supply voltage, where a time interval between a start of providing the second supply voltage and a start of providing the first supply voltage is no less than a time period to display one image frame; and a start-up short detection circuit, configured to determine whether a short-circuit fault occurs between the first power transmission line and the second power transmission line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.