Display device and method of performing an over-current protecting operation thereof
US11862097B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2022 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Dec 23, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device includes a display panel including a pixel circuit, a display panel driving circuit that drives the display panel, a voltage generating circuit that receives an input power supply voltage when the display device is powered on and generates display panel voltages and driving circuit voltages based on the input power supply voltage, and an over-current protecting circuit that monitors an over-current generated inside the display device and generates a shut-down request signal when the over-current is detected. The voltage generating circuit outputs an initialization voltage at a first time point corresponding to a time point at which the input power supply voltage is received. The display panel driving circuit outputs a scan clock signal at a second time point. The over-current protecting circuit performs a first over-current protecting operation in a power-on monitoring period set between the first time point and the second time point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.