Scan-type display apparatus capable of short circuit detection, and scan driver thereof
US11929016B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2022 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | Dec 5, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scan-type display apparatus includes an LED array and a scan driver. The LED array has a common anode configuration, and includes multiple scan lines, multiple data lines and multiple LEDs. The scan driver includes multiple scan driving circuits. Each scan driving circuit includes a voltage generator and a detector. The voltage generator has an output terminal that is connected to the scan line corresponding to the scan driving circuit, and is configured to output one of an input voltage and a clamp voltage at the output terminal of the voltage generator. The detector is connected to the output terminal of the voltage generator, and generates a detection signal that indicates whether any one of the LEDs connected to the scan line corresponding to the scan driving circuit is short circuited based on a voltage at the output terminal of the voltage generator and a detection timing signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.