Driving circuit, tiled electronic device, and test method
US10878734B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2018 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Oct 19, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A driving circuit includes a driving unit, a light-emitting element, and a detection unit. The driving unit has a first terminal coupled to a first voltage source, a second terminal coupled to a data line to receive a plurality of display data, and a third terminal coupled to a first node. The driving unit provides a driving signal to the first node according to the plurality of display data. The light-emitting element has a first terminal coupled to the first node and a second terminal coupled to a second voltage source. The detection unit is coupled to the first node and a detection node. In a test mode, when the driving unit provides the driving signal, the detection unit detects a potential of the first node to generate a detection signal which is used to indicate a state of the light-emitting element or the detection unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.